source "sound/soc/omap/Kconfig"
source "sound/soc/kirkwood/Kconfig"
source "sound/soc/pxa/Kconfig"
-source "sound/soc/s3c24xx/Kconfig"
+source "sound/soc/samsung/Kconfig"
source "sound/soc/s6000/Kconfig"
source "sound/soc/sh/Kconfig"
source "sound/soc/txx9/Kconfig"
obj-$(CONFIG_SND_SOC) += omap/
obj-$(CONFIG_SND_SOC) += kirkwood/
obj-$(CONFIG_SND_SOC) += pxa/
-obj-$(CONFIG_SND_SOC) += s3c24xx/
+obj-$(CONFIG_SND_SOC) += samsung/
obj-$(CONFIG_SND_SOC) += s6000/
obj-$(CONFIG_SND_SOC) += sh/
obj-$(CONFIG_SND_SOC) += txx9/
+++ /dev/null
-config ASOC_SAMSUNG
- tristate "ASoC support for Samsung"
- depends on ARCH_S3C2410 || ARCH_S3C64XX || ARCH_S5PC100 || ARCH_S5PV210
- select S3C64XX_DMA if ARCH_S3C64XX
- select S3C2410_DMA if ARCH_S3C2410
- help
- Say Y or M if you want to add support for codecs attached to
- the Samsung SoCs' Audio interfaces. You will also need to
- select the audio interfaces to support below.
-
-config SND_S3C24XX_I2S
- tristate
- select S3C2410_DMA
-
-config SND_S3C_I2SV2_SOC
- tristate
-
-config SND_S3C2412_SOC_I2S
- tristate
- select SND_S3C_I2SV2_SOC
- select S3C2410_DMA
-
-config SND_SAMSUNG_PCM
- tristate
-
-config SND_SAMSUNG_AC97
- tristate
- select SND_SOC_AC97_BUS
-
-config SND_SAMSUNG_SPDIF
- tristate
- select SND_SOC_SPDIF
-
-config SND_SAMSUNG_I2S
- tristate
-
-config ASOC_SAMSUNG_NEO1973_WM8753
- tristate "SoC I2S Audio support for NEO1973 - WM8753"
- depends on ASOC_SAMSUNG && MACH_NEO1973_GTA01
- select SND_S3C24XX_I2S
- select SND_SOC_WM8753
- help
- Say Y if you want to add support for SoC audio on smdk2440
- with the WM8753.
-
-config ASOC_SAMSUNG_NEO1973_GTA02_WM8753
- tristate "Audio support for the Openmoko Neo FreeRunner (GTA02)"
- depends on ASOC_SAMSUNG && MACH_NEO1973_GTA02
- select SND_S3C24XX_I2S
- select SND_SOC_WM8753
- help
- This driver provides audio support for the Openmoko Neo FreeRunner
- smartphone.
-
-config ASOC_SAMSUNG_JIVE_WM8750
- tristate "SoC I2S Audio support for Jive"
- depends on ASOC_SAMSUNG && MACH_JIVE
- select SND_SOC_WM8750
- select SND_S3C2412_SOC_I2S
- help
- Sat Y if you want to add support for SoC audio on the Jive.
-
-config ASOC_SAMSUNG_SMDK_WM8580
- tristate "SoC I2S Audio support for WM8580 on SMDK"
- depends on ASOC_SAMSUNG && (MACH_SMDK6410 || MACH_SMDKC100)
- select SND_SOC_WM8580
- select SND_SAMSUNG_I2S
- help
- Say Y if you want to add support for SoC audio on the SMDKs.
-
-config ASOC_SAMSUNG_SMDK2443_WM9710
- tristate "SoC AC97 Audio support for SMDK2443 - WM9710"
- depends on ASOC_SAMSUNG && MACH_SMDK2443
- select S3C2410_DMA
- select AC97_BUS
- select SND_SOC_AC97_CODEC
- select SND_SAMSUNG_AC97
- help
- Say Y if you want to add support for SoC audio on smdk2443
- with the WM9710.
-
-config ASOC_SAMSUNG_LN2440SBC_ALC650
- tristate "SoC AC97 Audio support for LN2440SBC - ALC650"
- depends on ASOC_SAMSUNG && ARCH_S3C2410
- select S3C2410_DMA
- select AC97_BUS
- select SND_SOC_AC97_CODEC
- select SND_SAMSUNG_AC97
- help
- Say Y if you want to add support for SoC audio on ln2440sbc
- with the ALC650.
-
-config ASOC_SAMSUNG_S3C24XX_UDA134X
- tristate "SoC I2S Audio support UDA134X wired to a S3C24XX"
- depends on ASOC_SAMSUNG && ARCH_S3C2410
- select SND_S3C24XX_I2S
- select SND_SOC_L3
- select SND_SOC_UDA134X
-
-config ASOC_SAMSUNG_SIMTEC
- tristate
- help
- Internal node for common S3C24XX/Simtec suppor
-
-config ASOC_SAMSUNG_SIMTEC_TLV320AIC23
- tristate "SoC I2S Audio support for TLV320AIC23 on Simtec boards"
- depends on ASOC_SAMSUNG && ARCH_S3C2410
- select SND_S3C24XX_I2S
- select SND_SOC_TLV320AIC23
- select ASOC_SAMSUNG_SIMTEC
-
-config ASOC_SAMSUNG_SIMTEC_HERMES
- tristate "SoC I2S Audio support for Simtec Hermes board"
- depends on ASOC_SAMSUNG && ARCH_S3C2410
- select SND_S3C24XX_I2S
- select SND_SOC_TLV320AIC3X
- select ASOC_SAMSUNG_SIMTEC
-
-config ASOC_SAMSUNG_RX1950_UDA1380
- tristate "Audio support for the HP iPAQ RX1950"
- depends on ASOC_SAMSUNG && MACH_RX1950
- select SND_S3C24XX_I2S
- select SND_SOC_UDA1380
- help
- This driver provides audio support for HP iPAQ RX1950 PDA.
-
-config ASOC_SAMSUNG_SMDK_WM9713
- tristate "SoC AC97 Audio support for SMDK with WM9713"
- depends on ASOC_SAMSUNG && (MACH_SMDK6410 || MACH_SMDKC100 || MACH_SMDKV210 || MACH_SMDKC110)
- select SND_SOC_WM9713
- select SND_SAMSUNG_AC97
- help
- Sat Y if you want to add support for SoC audio on the SMDK.
-
-config ASOC_SMARTQ
- tristate "SoC I2S Audio support for SmartQ board"
- depends on ASOC_SAMSUNG && MACH_SMARTQ
- select SND_SAMSUNG_I2S
- select SND_SOC_WM8750
-
-config ASOC_GONI_AQUILA_WM8994
- tristate "SoC I2S Audio support for AQUILA/GONI - WM8994"
- depends on ASOC_SAMSUNG && (MACH_GONI || MACH_AQUILA)
- select SND_SAMSUNG_I2S
- select SND_SOC_WM8994
- help
- Say Y if you want to add support for SoC audio on goni or aquila
- with the WM8994.
-
-config ASOC_SAMSUNG_SMDK_SPDIF
- tristate "SoC S/PDIF Audio support for SMDK"
- depends on ASOC_SAMSUNG && (MACH_SMDKC100 || MACH_SMDKC110 || MACH_SMDKV210)
- select SND_SAMSUNG_SPDIF
- help
- Say Y if you want to add support for SoC S/PDIF audio on the SMDK.
+++ /dev/null
-# S3c24XX Platform Support
-snd-soc-s3c24xx-objs := dma.o
-snd-soc-s3c24xx-i2s-objs := s3c24xx-i2s.o
-snd-soc-s3c2412-i2s-objs := s3c2412-i2s.o
-snd-soc-ac97-objs := ac97.o
-snd-soc-s3c-i2s-v2-objs := s3c-i2s-v2.o
-snd-soc-samsung-spdif-objs := spdif.o
-snd-soc-pcm-objs := pcm.o
-snd-soc-i2s-objs := i2s.o
-
-obj-$(CONFIG_ASOC_SAMSUNG) += snd-soc-s3c24xx.o
-obj-$(CONFIG_SND_S3C24XX_I2S) += snd-soc-s3c24xx-i2s.o
-obj-$(CONFIG_SND_SAMSUNG_AC97) += snd-soc-ac97.o
-obj-$(CONFIG_SND_S3C2412_SOC_I2S) += snd-soc-s3c2412-i2s.o
-obj-$(CONFIG_SND_S3C_I2SV2_SOC) += snd-soc-s3c-i2s-v2.o
-obj-$(CONFIG_SND_SAMSUNG_SPDIF) += snd-soc-samsung-spdif.o
-obj-$(CONFIG_SND_SAMSUNG_PCM) += snd-soc-pcm.o
-obj-$(CONFIG_SND_SAMSUNG_I2S) += snd-soc-i2s.o
-
-# S3C24XX Machine Support
-snd-soc-jive-wm8750-objs := jive_wm8750.o
-snd-soc-neo1973-wm8753-objs := neo1973_wm8753.o
-snd-soc-neo1973-gta02-wm8753-objs := neo1973_gta02_wm8753.o
-snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.o
-snd-soc-ln2440sbc-alc650-objs := ln2440sbc_alc650.o
-snd-soc-s3c24xx-uda134x-objs := s3c24xx_uda134x.o
-snd-soc-s3c24xx-simtec-objs := s3c24xx_simtec.o
-snd-soc-s3c24xx-simtec-hermes-objs := s3c24xx_simtec_hermes.o
-snd-soc-s3c24xx-simtec-tlv320aic23-objs := s3c24xx_simtec_tlv320aic23.o
-snd-soc-rx1950-uda1380-objs := rx1950_uda1380.o
-snd-soc-smdk-wm8580-objs := smdk_wm8580.o
-snd-soc-smdk-wm9713-objs := smdk_wm9713.o
-snd-soc-s3c64xx-smartq-wm8987-objs := smartq_wm8987.o
-snd-soc-goni-wm8994-objs := goni_wm8994.o
-snd-soc-smdk-spdif-objs := smdk_spdif.o
-
-obj-$(CONFIG_ASOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o
-obj-$(CONFIG_ASOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
-obj-$(CONFIG_ASOC_SAMSUNG_NEO1973_GTA02_WM8753) += snd-soc-neo1973-gta02-wm8753.o
-obj-$(CONFIG_ASOC_SAMSUNG_SMDK2443_WM9710) += snd-soc-smdk2443-wm9710.o
-obj-$(CONFIG_ASOC_SAMSUNG_LN2440SBC_ALC650) += snd-soc-ln2440sbc-alc650.o
-obj-$(CONFIG_ASOC_SAMSUNG_S3C24XX_UDA134X) += snd-soc-s3c24xx-uda134x.o
-obj-$(CONFIG_ASOC_SAMSUNG_SIMTEC) += snd-soc-s3c24xx-simtec.o
-obj-$(CONFIG_ASOC_SAMSUNG_SIMTEC_HERMES) += snd-soc-s3c24xx-simtec-hermes.o
-obj-$(CONFIG_ASOC_SAMSUNG_SIMTEC_TLV320AIC23) += snd-soc-s3c24xx-simtec-tlv320aic23.o
-obj-$(CONFIG_ASOC_SAMSUNG_RX1950_UDA1380) += snd-soc-rx1950-uda1380.o
-obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM8580) += snd-soc-smdk-wm8580.o
-obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM9713) += snd-soc-smdk-wm9713.o
-obj-$(CONFIG_ASOC_SMARTQ) += snd-soc-s3c64xx-smartq-wm8987.o
-obj-$(CONFIG_ASOC_SAMSUNG_SMDK_SPDIF) += snd-soc-smdk-spdif.o
-obj-$(CONFIG_ASOC_GONI_AQUILA_WM8994) += snd-soc-goni-wm8994.o
+++ /dev/null
-/* sound/soc/s3c24xx/ac97.c
- *
- * ALSA SoC Audio Layer - S3C AC97 Controller driver
- * Evolved from s3c2443-ac97.c
- *
- * Copyright (c) 2010 Samsung Electronics Co. Ltd
- * Author: Jaswinder Singh <jassi.brar@samsung.com>
- * Credits: Graeme Gregory, Sean Choi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/io.h>
-#include <linux/delay.h>
-#include <linux/clk.h>
-
-#include <sound/soc.h>
-
-#include <plat/regs-ac97.h>
-#include <mach/dma.h>
-#include <plat/audio.h>
-
-#include "dma.h"
-#include "ac97.h"
-
-#define AC_CMD_ADDR(x) (x << 16)
-#define AC_CMD_DATA(x) (x & 0xffff)
-
-struct s3c_ac97_info {
- struct clk *ac97_clk;
- void __iomem *regs;
- struct mutex lock;
- struct completion done;
-};
-static struct s3c_ac97_info s3c_ac97;
-
-static struct s3c2410_dma_client s3c_dma_client_out = {
- .name = "AC97 PCMOut"
-};
-
-static struct s3c2410_dma_client s3c_dma_client_in = {
- .name = "AC97 PCMIn"
-};
-
-static struct s3c2410_dma_client s3c_dma_client_micin = {
- .name = "AC97 MicIn"
-};
-
-static struct s3c_dma_params s3c_ac97_pcm_out = {
- .client = &s3c_dma_client_out,
- .dma_size = 4,
-};
-
-static struct s3c_dma_params s3c_ac97_pcm_in = {
- .client = &s3c_dma_client_in,
- .dma_size = 4,
-};
-
-static struct s3c_dma_params s3c_ac97_mic_in = {
- .client = &s3c_dma_client_micin,
- .dma_size = 4,
-};
-
-static void s3c_ac97_activate(struct snd_ac97 *ac97)
-{
- u32 ac_glbctrl, stat;
-
- stat = readl(s3c_ac97.regs + S3C_AC97_GLBSTAT) & 0x7;
- if (stat == S3C_AC97_GLBSTAT_MAINSTATE_ACTIVE)
- return; /* Return if already active */
-
- INIT_COMPLETION(s3c_ac97.done);
-
- ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
- ac_glbctrl = S3C_AC97_GLBCTRL_ACLINKON;
- writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
- msleep(1);
-
- ac_glbctrl |= S3C_AC97_GLBCTRL_TRANSFERDATAENABLE;
- writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
- msleep(1);
-
- ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
- ac_glbctrl |= S3C_AC97_GLBCTRL_CODECREADYIE;
- writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
-
- if (!wait_for_completion_timeout(&s3c_ac97.done, HZ))
- pr_err("AC97: Unable to activate!");
-}
-
-static unsigned short s3c_ac97_read(struct snd_ac97 *ac97,
- unsigned short reg)
-{
- u32 ac_glbctrl, ac_codec_cmd;
- u32 stat, addr, data;
-
- mutex_lock(&s3c_ac97.lock);
-
- s3c_ac97_activate(ac97);
-
- INIT_COMPLETION(s3c_ac97.done);
-
- ac_codec_cmd = readl(s3c_ac97.regs + S3C_AC97_CODEC_CMD);
- ac_codec_cmd = S3C_AC97_CODEC_CMD_READ | AC_CMD_ADDR(reg);
- writel(ac_codec_cmd, s3c_ac97.regs + S3C_AC97_CODEC_CMD);
-
- udelay(50);
-
- ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
- ac_glbctrl |= S3C_AC97_GLBCTRL_CODECREADYIE;
- writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
-
- if (!wait_for_completion_timeout(&s3c_ac97.done, HZ))
- pr_err("AC97: Unable to read!");
-
- stat = readl(s3c_ac97.regs + S3C_AC97_STAT);
- addr = (stat >> 16) & 0x7f;
- data = (stat & 0xffff);
-
- if (addr != reg)
- pr_err("ac97: req addr = %02x, rep addr = %02x\n",
- reg, addr);
-
- mutex_unlock(&s3c_ac97.lock);
-
- return (unsigned short)data;
-}
-
-static void s3c_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
- unsigned short val)
-{
- u32 ac_glbctrl, ac_codec_cmd;
-
- mutex_lock(&s3c_ac97.lock);
-
- s3c_ac97_activate(ac97);
-
- INIT_COMPLETION(s3c_ac97.done);
-
- ac_codec_cmd = readl(s3c_ac97.regs + S3C_AC97_CODEC_CMD);
- ac_codec_cmd = AC_CMD_ADDR(reg) | AC_CMD_DATA(val);
- writel(ac_codec_cmd, s3c_ac97.regs + S3C_AC97_CODEC_CMD);
-
- udelay(50);
-
- ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
- ac_glbctrl |= S3C_AC97_GLBCTRL_CODECREADYIE;
- writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
-
- if (!wait_for_completion_timeout(&s3c_ac97.done, HZ))
- pr_err("AC97: Unable to write!");
-
- ac_codec_cmd = readl(s3c_ac97.regs + S3C_AC97_CODEC_CMD);
- ac_codec_cmd |= S3C_AC97_CODEC_CMD_READ;
- writel(ac_codec_cmd, s3c_ac97.regs + S3C_AC97_CODEC_CMD);
-
- mutex_unlock(&s3c_ac97.lock);
-}
-
-static void s3c_ac97_cold_reset(struct snd_ac97 *ac97)
-{
- pr_debug("AC97: Cold reset\n");
- writel(S3C_AC97_GLBCTRL_COLDRESET,
- s3c_ac97.regs + S3C_AC97_GLBCTRL);
- msleep(1);
-
- writel(0, s3c_ac97.regs + S3C_AC97_GLBCTRL);
- msleep(1);
-}
-
-static void s3c_ac97_warm_reset(struct snd_ac97 *ac97)
-{
- u32 stat;
-
- stat = readl(s3c_ac97.regs + S3C_AC97_GLBSTAT) & 0x7;
- if (stat == S3C_AC97_GLBSTAT_MAINSTATE_ACTIVE)
- return; /* Return if already active */
-
- pr_debug("AC97: Warm reset\n");
-
- writel(S3C_AC97_GLBCTRL_WARMRESET, s3c_ac97.regs + S3C_AC97_GLBCTRL);
- msleep(1);
-
- writel(0, s3c_ac97.regs + S3C_AC97_GLBCTRL);
- msleep(1);
-
- s3c_ac97_activate(ac97);
-}
-
-static irqreturn_t s3c_ac97_irq(int irq, void *dev_id)
-{
- u32 ac_glbctrl, ac_glbstat;
-
- ac_glbstat = readl(s3c_ac97.regs + S3C_AC97_GLBSTAT);
-
- if (ac_glbstat & S3C_AC97_GLBSTAT_CODECREADY) {
-
- ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
- ac_glbctrl &= ~S3C_AC97_GLBCTRL_CODECREADYIE;
- writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
-
- complete(&s3c_ac97.done);
- }
-
- ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
- ac_glbctrl |= (1<<30); /* Clear interrupt */
- writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
-
- return IRQ_HANDLED;
-}
-
-struct snd_ac97_bus_ops soc_ac97_ops = {
- .read = s3c_ac97_read,
- .write = s3c_ac97_write,
- .warm_reset = s3c_ac97_warm_reset,
- .reset = s3c_ac97_cold_reset,
-};
-EXPORT_SYMBOL_GPL(soc_ac97_ops);
-
-static int s3c_ac97_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- struct s3c_dma_params *dma_data;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- dma_data = &s3c_ac97_pcm_out;
- else
- dma_data = &s3c_ac97_pcm_in;
-
- snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
-
- return 0;
-}
-
-static int s3c_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
- struct snd_soc_dai *dai)
-{
- u32 ac_glbctrl;
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct s3c_dma_params *dma_data =
- snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
-
- ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- ac_glbctrl &= ~S3C_AC97_GLBCTRL_PCMINTM_MASK;
- else
- ac_glbctrl &= ~S3C_AC97_GLBCTRL_PCMOUTTM_MASK;
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- ac_glbctrl |= S3C_AC97_GLBCTRL_PCMINTM_DMA;
- else
- ac_glbctrl |= S3C_AC97_GLBCTRL_PCMOUTTM_DMA;
- break;
-
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- break;
- }
-
- writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
-
- s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
-
- return 0;
-}
-
-static int s3c_ac97_hw_mic_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- return -ENODEV;
- else
- snd_soc_dai_set_dma_data(cpu_dai, substream, &s3c_ac97_mic_in);
-
- return 0;
-}
-
-static int s3c_ac97_mic_trigger(struct snd_pcm_substream *substream,
- int cmd, struct snd_soc_dai *dai)
-{
- u32 ac_glbctrl;
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct s3c_dma_params *dma_data =
- snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
-
- ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
- ac_glbctrl &= ~S3C_AC97_GLBCTRL_MICINTM_MASK;
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- ac_glbctrl |= S3C_AC97_GLBCTRL_MICINTM_DMA;
- break;
-
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- break;
- }
-
- writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
-
- s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
-
- return 0;
-}
-
-static struct snd_soc_dai_ops s3c_ac97_dai_ops = {
- .hw_params = s3c_ac97_hw_params,
- .trigger = s3c_ac97_trigger,
-};
-
-static struct snd_soc_dai_ops s3c_ac97_mic_dai_ops = {
- .hw_params = s3c_ac97_hw_mic_params,
- .trigger = s3c_ac97_mic_trigger,
-};
-
-static struct snd_soc_dai_driver s3c_ac97_dai[] = {
- [S3C_AC97_DAI_PCM] = {
- .name = "samsung-ac97",
- .ac97_control = 1,
- .playback = {
- .stream_name = "AC97 Playback",
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_48000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
- .capture = {
- .stream_name = "AC97 Capture",
- .channels_min = 2,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000_48000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
- .ops = &s3c_ac97_dai_ops,
- },
- [S3C_AC97_DAI_MIC] = {
- .name = "samsung-ac97-mic",
- .ac97_control = 1,
- .capture = {
- .stream_name = "AC97 Mic Capture",
- .channels_min = 1,
- .channels_max = 1,
- .rates = SNDRV_PCM_RATE_8000_48000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
- .ops = &s3c_ac97_mic_dai_ops,
- },
-};
-
-static __devinit int s3c_ac97_probe(struct platform_device *pdev)
-{
- struct resource *mem_res, *dmatx_res, *dmarx_res, *dmamic_res, *irq_res;
- struct s3c_audio_pdata *ac97_pdata;
- int ret;
-
- ac97_pdata = pdev->dev.platform_data;
- if (!ac97_pdata || !ac97_pdata->cfg_gpio) {
- dev_err(&pdev->dev, "cfg_gpio callback not provided!\n");
- return -EINVAL;
- }
-
- /* Check for availability of necessary resource */
- dmatx_res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (!dmatx_res) {
- dev_err(&pdev->dev, "Unable to get AC97-TX dma resource\n");
- return -ENXIO;
- }
-
- dmarx_res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
- if (!dmarx_res) {
- dev_err(&pdev->dev, "Unable to get AC97-RX dma resource\n");
- return -ENXIO;
- }
-
- dmamic_res = platform_get_resource(pdev, IORESOURCE_DMA, 2);
- if (!dmamic_res) {
- dev_err(&pdev->dev, "Unable to get AC97-MIC dma resource\n");
- return -ENXIO;
- }
-
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem_res) {
- dev_err(&pdev->dev, "Unable to get register resource\n");
- return -ENXIO;
- }
-
- irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!irq_res) {
- dev_err(&pdev->dev, "AC97 IRQ not provided!\n");
- return -ENXIO;
- }
-
- if (!request_mem_region(mem_res->start,
- resource_size(mem_res), "ac97")) {
- dev_err(&pdev->dev, "Unable to request register region\n");
- return -EBUSY;
- }
-
- s3c_ac97_pcm_out.channel = dmatx_res->start;
- s3c_ac97_pcm_out.dma_addr = mem_res->start + S3C_AC97_PCM_DATA;
- s3c_ac97_pcm_in.channel = dmarx_res->start;
- s3c_ac97_pcm_in.dma_addr = mem_res->start + S3C_AC97_PCM_DATA;
- s3c_ac97_mic_in.channel = dmamic_res->start;
- s3c_ac97_mic_in.dma_addr = mem_res->start + S3C_AC97_MIC_DATA;
-
- init_completion(&s3c_ac97.done);
- mutex_init(&s3c_ac97.lock);
-
- s3c_ac97.regs = ioremap(mem_res->start, resource_size(mem_res));
- if (s3c_ac97.regs == NULL) {
- dev_err(&pdev->dev, "Unable to ioremap register region\n");
- ret = -ENXIO;
- goto err1;
- }
-
- s3c_ac97.ac97_clk = clk_get(&pdev->dev, "ac97");
- if (IS_ERR(s3c_ac97.ac97_clk)) {
- dev_err(&pdev->dev, "ac97 failed to get ac97_clock\n");
- ret = -ENODEV;
- goto err2;
- }
- clk_enable(s3c_ac97.ac97_clk);
-
- if (ac97_pdata->cfg_gpio(pdev)) {
- dev_err(&pdev->dev, "Unable to configure gpio\n");
- ret = -EINVAL;
- goto err3;
- }
-
- ret = request_irq(irq_res->start, s3c_ac97_irq,
- IRQF_DISABLED, "AC97", NULL);
- if (ret < 0) {
- dev_err(&pdev->dev, "ac97: interrupt request failed.\n");
- goto err4;
- }
-
- ret = snd_soc_register_dais(&pdev->dev, s3c_ac97_dai,
- ARRAY_SIZE(s3c_ac97_dai));
- if (ret)
- goto err5;
-
- return 0;
-
-err5:
- free_irq(irq_res->start, NULL);
-err4:
-err3:
- clk_disable(s3c_ac97.ac97_clk);
- clk_put(s3c_ac97.ac97_clk);
-err2:
- iounmap(s3c_ac97.regs);
-err1:
- release_mem_region(mem_res->start, resource_size(mem_res));
-
- return ret;
-}
-
-static __devexit int s3c_ac97_remove(struct platform_device *pdev)
-{
- struct resource *mem_res, *irq_res;
-
- snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(s3c_ac97_dai));
-
- irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (irq_res)
- free_irq(irq_res->start, NULL);
-
- clk_disable(s3c_ac97.ac97_clk);
- clk_put(s3c_ac97.ac97_clk);
-
- iounmap(s3c_ac97.regs);
-
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (mem_res)
- release_mem_region(mem_res->start, resource_size(mem_res));
-
- return 0;
-}
-
-static struct platform_driver s3c_ac97_driver = {
- .probe = s3c_ac97_probe,
- .remove = s3c_ac97_remove,
- .driver = {
- .name = "samsung-ac97",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init s3c_ac97_init(void)
-{
- return platform_driver_register(&s3c_ac97_driver);
-}
-module_init(s3c_ac97_init);
-
-static void __exit s3c_ac97_exit(void)
-{
- platform_driver_unregister(&s3c_ac97_driver);
-}
-module_exit(s3c_ac97_exit);
-
-MODULE_AUTHOR("Jaswinder Singh, <jassi.brar@samsung.com>");
-MODULE_DESCRIPTION("AC97 driver for the Samsung SoC");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:samsung-ac97");
+++ /dev/null
-/* sound/soc/s3c24xx/ac97.h
- *
- * ALSA SoC Audio Layer - S3C AC97 Controller driver
- * Evolved from s3c2443-ac97.h
- *
- * Copyright (c) 2010 Samsung Electronics Co. Ltd
- * Author: Jaswinder Singh <jassi.brar@samsung.com>
- * Credits: Graeme Gregory, Sean Choi
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __S3C_AC97_H_
-#define __S3C_AC97_H_
-
-#define S3C_AC97_DAI_PCM 0
-#define S3C_AC97_DAI_MIC 1
-
-#endif /* __S3C_AC97_H_ */
+++ /dev/null
-/*
- * dma.c -- ALSA Soc Audio Layer
- *
- * (c) 2006 Wolfson Microelectronics PLC.
- * Graeme Gregory graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
- *
- * Copyright 2004-2005 Simtec Electronics
- * http://armlinux.simtec.co.uk/
- * Ben Dooks <ben@simtec.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/dma-mapping.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include <asm/dma.h>
-#include <mach/hardware.h>
-#include <mach/dma.h>
-
-#include "dma.h"
-
-static const struct snd_pcm_hardware dma_hardware = {
- .info = SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_BLOCK_TRANSFER |
- SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_RESUME,
- .formats = SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_U16_LE |
- SNDRV_PCM_FMTBIT_U8 |
- SNDRV_PCM_FMTBIT_S8,
- .channels_min = 2,
- .channels_max = 2,
- .buffer_bytes_max = 128*1024,
- .period_bytes_min = PAGE_SIZE,
- .period_bytes_max = PAGE_SIZE*2,
- .periods_min = 2,
- .periods_max = 128,
- .fifo_size = 32,
-};
-
-struct runtime_data {
- spinlock_t lock;
- int state;
- unsigned int dma_loaded;
- unsigned int dma_limit;
- unsigned int dma_period;
- dma_addr_t dma_start;
- dma_addr_t dma_pos;
- dma_addr_t dma_end;
- struct s3c_dma_params *params;
-};
-
-/* dma_enqueue
- *
- * place a dma buffer onto the queue for the dma system
- * to handle.
-*/
-static void dma_enqueue(struct snd_pcm_substream *substream)
-{
- struct runtime_data *prtd = substream->runtime->private_data;
- dma_addr_t pos = prtd->dma_pos;
- unsigned int limit;
- int ret;
-
- pr_debug("Entered %s\n", __func__);
-
- if (s3c_dma_has_circular())
- limit = (prtd->dma_end - prtd->dma_start) / prtd->dma_period;
- else
- limit = prtd->dma_limit;
-
- pr_debug("%s: loaded %d, limit %d\n",
- __func__, prtd->dma_loaded, limit);
-
- while (prtd->dma_loaded < limit) {
- unsigned long len = prtd->dma_period;
-
- pr_debug("dma_loaded: %d\n", prtd->dma_loaded);
-
- if ((pos + len) > prtd->dma_end) {
- len = prtd->dma_end - pos;
- pr_debug("%s: corrected dma len %ld\n", __func__, len);
- }
-
- ret = s3c2410_dma_enqueue(prtd->params->channel,
- substream, pos, len);
-
- if (ret == 0) {
- prtd->dma_loaded++;
- pos += prtd->dma_period;
- if (pos >= prtd->dma_end)
- pos = prtd->dma_start;
- } else
- break;
- }
-
- prtd->dma_pos = pos;
-}
-
-static void audio_buffdone(struct s3c2410_dma_chan *channel,
- void *dev_id, int size,
- enum s3c2410_dma_buffresult result)
-{
- struct snd_pcm_substream *substream = dev_id;
- struct runtime_data *prtd;
-
- pr_debug("Entered %s\n", __func__);
-
- if (result == S3C2410_RES_ABORT || result == S3C2410_RES_ERR)
- return;
-
- prtd = substream->runtime->private_data;
-
- if (substream)
- snd_pcm_period_elapsed(substream);
-
- spin_lock(&prtd->lock);
- if (prtd->state & ST_RUNNING && !s3c_dma_has_circular()) {
- prtd->dma_loaded--;
- dma_enqueue(substream);
- }
-
- spin_unlock(&prtd->lock);
-}
-
-static int dma_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct runtime_data *prtd = runtime->private_data;
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- unsigned long totbytes = params_buffer_bytes(params);
- struct s3c_dma_params *dma =
- snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
- int ret = 0;
-
-
- pr_debug("Entered %s\n", __func__);
-
- /* return if this is a bufferless transfer e.g.
- * codec <--> BT codec or GSM modem -- lg FIXME */
- if (!dma)
- return 0;
-
- /* this may get called several times by oss emulation
- * with different params -HW */
- if (prtd->params == NULL) {
- /* prepare DMA */
- prtd->params = dma;
-
- pr_debug("params %p, client %p, channel %d\n", prtd->params,
- prtd->params->client, prtd->params->channel);
-
- ret = s3c2410_dma_request(prtd->params->channel,
- prtd->params->client, NULL);
-
- if (ret < 0) {
- printk(KERN_ERR "failed to get dma channel\n");
- return ret;
- }
-
- /* use the circular buffering if we have it available. */
- if (s3c_dma_has_circular())
- s3c2410_dma_setflags(prtd->params->channel,
- S3C2410_DMAF_CIRCULAR);
- }
-
- s3c2410_dma_set_buffdone_fn(prtd->params->channel,
- audio_buffdone);
-
- snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
-
- runtime->dma_bytes = totbytes;
-
- spin_lock_irq(&prtd->lock);
- prtd->dma_loaded = 0;
- prtd->dma_limit = runtime->hw.periods_min;
- prtd->dma_period = params_period_bytes(params);
- prtd->dma_start = runtime->dma_addr;
- prtd->dma_pos = prtd->dma_start;
- prtd->dma_end = prtd->dma_start + totbytes;
- spin_unlock_irq(&prtd->lock);
-
- return 0;
-}
-
-static int dma_hw_free(struct snd_pcm_substream *substream)
-{
- struct runtime_data *prtd = substream->runtime->private_data;
-
- pr_debug("Entered %s\n", __func__);
-
- /* TODO - do we need to ensure DMA flushed */
- snd_pcm_set_runtime_buffer(substream, NULL);
-
- if (prtd->params) {
- s3c2410_dma_free(prtd->params->channel, prtd->params->client);
- prtd->params = NULL;
- }
-
- return 0;
-}
-
-static int dma_prepare(struct snd_pcm_substream *substream)
-{
- struct runtime_data *prtd = substream->runtime->private_data;
- int ret = 0;
-
- pr_debug("Entered %s\n", __func__);
-
- /* return if this is a bufferless transfer e.g.
- * codec <--> BT codec or GSM modem -- lg FIXME */
- if (!prtd->params)
- return 0;
-
- /* channel needs configuring for mem=>device, increment memory addr,
- * sync to pclk, half-word transfers to the IIS-FIFO. */
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_MEM,
- prtd->params->dma_addr);
- } else {
- s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_HW,
- prtd->params->dma_addr);
- }
-
- s3c2410_dma_config(prtd->params->channel,
- prtd->params->dma_size);
-
- /* flush the DMA channel */
- s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_FLUSH);
- prtd->dma_loaded = 0;
- prtd->dma_pos = prtd->dma_start;
-
- /* enqueue dma buffers */
- dma_enqueue(substream);
-
- return ret;
-}
-
-static int dma_trigger(struct snd_pcm_substream *substream, int cmd)
-{
- struct runtime_data *prtd = substream->runtime->private_data;
- int ret = 0;
-
- pr_debug("Entered %s\n", __func__);
-
- spin_lock(&prtd->lock);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- prtd->state |= ST_RUNNING;
- s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_START);
- break;
-
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- prtd->state &= ~ST_RUNNING;
- s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_STOP);
- break;
-
- default:
- ret = -EINVAL;
- break;
- }
-
- spin_unlock(&prtd->lock);
-
- return ret;
-}
-
-static snd_pcm_uframes_t
-dma_pointer(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct runtime_data *prtd = runtime->private_data;
- unsigned long res;
- dma_addr_t src, dst;
-
- pr_debug("Entered %s\n", __func__);
-
- spin_lock(&prtd->lock);
- s3c2410_dma_getposition(prtd->params->channel, &src, &dst);
-
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- res = dst - prtd->dma_start;
- else
- res = src - prtd->dma_start;
-
- spin_unlock(&prtd->lock);
-
- pr_debug("Pointer %x %x\n", src, dst);
-
- /* we seem to be getting the odd error from the pcm library due
- * to out-of-bounds pointers. this is maybe due to the dma engine
- * not having loaded the new values for the channel before being
- * callled... (todo - fix )
- */
-
- if (res >= snd_pcm_lib_buffer_bytes(substream)) {
- if (res == snd_pcm_lib_buffer_bytes(substream))
- res = 0;
- }
-
- return bytes_to_frames(substream->runtime, res);
-}
-
-static int dma_open(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct runtime_data *prtd;
-
- pr_debug("Entered %s\n", __func__);
-
- snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
- snd_soc_set_runtime_hwparams(substream, &dma_hardware);
-
- prtd = kzalloc(sizeof(struct runtime_data), GFP_KERNEL);
- if (prtd == NULL)
- return -ENOMEM;
-
- spin_lock_init(&prtd->lock);
-
- runtime->private_data = prtd;
- return 0;
-}
-
-static int dma_close(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct runtime_data *prtd = runtime->private_data;
-
- pr_debug("Entered %s\n", __func__);
-
- if (!prtd)
- pr_debug("dma_close called with prtd == NULL\n");
-
- kfree(prtd);
-
- return 0;
-}
-
-static int dma_mmap(struct snd_pcm_substream *substream,
- struct vm_area_struct *vma)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
-
- pr_debug("Entered %s\n", __func__);
-
- return dma_mmap_writecombine(substream->pcm->card->dev, vma,
- runtime->dma_area,
- runtime->dma_addr,
- runtime->dma_bytes);
-}
-
-static struct snd_pcm_ops dma_ops = {
- .open = dma_open,
- .close = dma_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = dma_hw_params,
- .hw_free = dma_hw_free,
- .prepare = dma_prepare,
- .trigger = dma_trigger,
- .pointer = dma_pointer,
- .mmap = dma_mmap,
-};
-
-static int preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
-{
- struct snd_pcm_substream *substream = pcm->streams[stream].substream;
- struct snd_dma_buffer *buf = &substream->dma_buffer;
- size_t size = dma_hardware.buffer_bytes_max;
-
- pr_debug("Entered %s\n", __func__);
-
- buf->dev.type = SNDRV_DMA_TYPE_DEV;
- buf->dev.dev = pcm->card->dev;
- buf->private_data = NULL;
- buf->area = dma_alloc_writecombine(pcm->card->dev, size,
- &buf->addr, GFP_KERNEL);
- if (!buf->area)
- return -ENOMEM;
- buf->bytes = size;
- return 0;
-}
-
-static void dma_free_dma_buffers(struct snd_pcm *pcm)
-{
- struct snd_pcm_substream *substream;
- struct snd_dma_buffer *buf;
- int stream;
-
- pr_debug("Entered %s\n", __func__);
-
- for (stream = 0; stream < 2; stream++) {
- substream = pcm->streams[stream].substream;
- if (!substream)
- continue;
-
- buf = &substream->dma_buffer;
- if (!buf->area)
- continue;
-
- dma_free_writecombine(pcm->card->dev, buf->bytes,
- buf->area, buf->addr);
- buf->area = NULL;
- }
-}
-
-static u64 dma_mask = DMA_BIT_MASK(32);
-
-static int dma_new(struct snd_card *card,
- struct snd_soc_dai *dai, struct snd_pcm *pcm)
-{
- int ret = 0;
-
- pr_debug("Entered %s\n", __func__);
-
- if (!card->dev->dma_mask)
- card->dev->dma_mask = &dma_mask;
- if (!card->dev->coherent_dma_mask)
- card->dev->coherent_dma_mask = 0xffffffff;
-
- if (dai->driver->playback.channels_min) {
- ret = preallocate_dma_buffer(pcm,
- SNDRV_PCM_STREAM_PLAYBACK);
- if (ret)
- goto out;
- }
-
- if (dai->driver->capture.channels_min) {
- ret = preallocate_dma_buffer(pcm,
- SNDRV_PCM_STREAM_CAPTURE);
- if (ret)
- goto out;
- }
-out:
- return ret;
-}
-
-static struct snd_soc_platform_driver samsung_asoc_platform = {
- .ops = &dma_ops,
- .pcm_new = dma_new,
- .pcm_free = dma_free_dma_buffers,
-};
-
-static int __devinit samsung_asoc_platform_probe(struct platform_device *pdev)
-{
- return snd_soc_register_platform(&pdev->dev, &samsung_asoc_platform);
-}
-
-static int __devexit samsung_asoc_platform_remove(struct platform_device *pdev)
-{
- snd_soc_unregister_platform(&pdev->dev);
- return 0;
-}
-
-static struct platform_driver asoc_dma_driver = {
- .driver = {
- .name = "samsung-audio",
- .owner = THIS_MODULE,
- },
-
- .probe = samsung_asoc_platform_probe,
- .remove = __devexit_p(samsung_asoc_platform_remove),
-};
-
-static int __init samsung_asoc_init(void)
-{
- return platform_driver_register(&asoc_dma_driver);
-}
-module_init(samsung_asoc_init);
-
-static void __exit samsung_asoc_exit(void)
-{
- platform_driver_unregister(&asoc_dma_driver);
-}
-module_exit(samsung_asoc_exit);
-
-MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("Samsung ASoC DMA Driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:samsung-audio");
+++ /dev/null
-/*
- * dma.h --
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * ALSA PCM interface for the Samsung S3C24xx CPU
- */
-
-#ifndef _S3C_AUDIO_H
-#define _S3C_AUDIO_H
-
-#define ST_RUNNING (1<<0)
-#define ST_OPENED (1<<1)
-
-struct s3c_dma_params {
- struct s3c2410_dma_client *client; /* stream identifier */
- int channel; /* Channel ID */
- dma_addr_t dma_addr;
- int dma_size; /* Size of the DMA transfer */
-};
-
-#define S3C24XX_DAI_I2S 0
-
-/* platform data */
-extern struct snd_ac97_bus_ops s3c24xx_ac97_ops;
-
-#endif
+++ /dev/null
-/*
- * goni_wm8994.c
- *
- * Copyright (C) 2010 Samsung Electronics Co.Ltd
- * Author: Chanwoo Choi <cw00.choi@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <sound/soc.h>
-#include <sound/jack.h>
-#include <asm/mach-types.h>
-#include <mach/gpio.h>
-#include <mach/regs-clock.h>
-
-#include <linux/mfd/wm8994/core.h>
-#include <linux/mfd/wm8994/registers.h>
-#include "../codecs/wm8994.h"
-#include "dma.h"
-#include "i2s.h"
-
-#define MACHINE_NAME 0
-#define CPU_VOICE_DAI 1
-
-static const char *aquila_str[] = {
- [MACHINE_NAME] = "aquila",
- [CPU_VOICE_DAI] = "aquila-voice-dai",
-};
-
-static struct snd_soc_card goni;
-static struct platform_device *goni_snd_device;
-
-/* 3.5 pie jack */
-static struct snd_soc_jack jack;
-
-/* 3.5 pie jack detection DAPM pins */
-static struct snd_soc_jack_pin jack_pins[] = {
- {
- .pin = "Headset Mic",
- .mask = SND_JACK_MICROPHONE,
- }, {
- .pin = "Headset Stereophone",
- .mask = SND_JACK_HEADPHONE | SND_JACK_MECHANICAL |
- SND_JACK_AVOUT,
- },
-};
-
-/* 3.5 pie jack detection gpios */
-static struct snd_soc_jack_gpio jack_gpios[] = {
- {
- .gpio = S5PV210_GPH0(6),
- .name = "DET_3.5",
- .report = SND_JACK_HEADSET | SND_JACK_MECHANICAL |
- SND_JACK_AVOUT,
- .debounce_time = 200,
- },
-};
-
-static const struct snd_soc_dapm_widget goni_dapm_widgets[] = {
- SND_SOC_DAPM_SPK("Ext Left Spk", NULL),
- SND_SOC_DAPM_SPK("Ext Right Spk", NULL),
- SND_SOC_DAPM_SPK("Ext Rcv", NULL),
- SND_SOC_DAPM_HP("Headset Stereophone", NULL),
- SND_SOC_DAPM_MIC("Headset Mic", NULL),
- SND_SOC_DAPM_MIC("Main Mic", NULL),
- SND_SOC_DAPM_MIC("2nd Mic", NULL),
- SND_SOC_DAPM_LINE("Radio In", NULL),
-};
-
-static const struct snd_soc_dapm_route goni_dapm_routes[] = {
- {"Ext Left Spk", NULL, "SPKOUTLP"},
- {"Ext Left Spk", NULL, "SPKOUTLN"},
-
- {"Ext Right Spk", NULL, "SPKOUTRP"},
- {"Ext Right Spk", NULL, "SPKOUTRN"},
-
- {"Ext Rcv", NULL, "HPOUT2N"},
- {"Ext Rcv", NULL, "HPOUT2P"},
-
- {"Headset Stereophone", NULL, "HPOUT1L"},
- {"Headset Stereophone", NULL, "HPOUT1R"},
-
- {"IN1RN", NULL, "Headset Mic"},
- {"IN1RP", NULL, "Headset Mic"},
-
- {"IN1RN", NULL, "2nd Mic"},
- {"IN1RP", NULL, "2nd Mic"},
-
- {"IN1LN", NULL, "Main Mic"},
- {"IN1LP", NULL, "Main Mic"},
-
- {"IN2LN", NULL, "Radio In"},
- {"IN2RN", NULL, "Radio In"},
-};
-
-static int goni_wm8994_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
- int ret;
-
- /* add goni specific widgets */
- snd_soc_dapm_new_controls(dapm, goni_dapm_widgets,
- ARRAY_SIZE(goni_dapm_widgets));
-
- /* set up goni specific audio routes */
- snd_soc_dapm_add_routes(dapm, goni_dapm_routes,
- ARRAY_SIZE(goni_dapm_routes));
-
- /* set endpoints to not connected */
- snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
- snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
- snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
- snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
- snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
- snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
-
- if (machine_is_aquila()) {
- snd_soc_dapm_nc_pin(dapm, "SPKOUTRN");
- snd_soc_dapm_nc_pin(dapm, "SPKOUTRP");
- }
-
- snd_soc_dapm_sync(dapm);
-
- /* Headset jack detection */
- ret = snd_soc_jack_new(&goni, "Headset Jack",
- SND_JACK_HEADSET | SND_JACK_MECHANICAL | SND_JACK_AVOUT,
- &jack);
- if (ret)
- return ret;
-
- ret = snd_soc_jack_add_pins(&jack, ARRAY_SIZE(jack_pins), jack_pins);
- if (ret)
- return ret;
-
- ret = snd_soc_jack_add_gpios(&jack, ARRAY_SIZE(jack_gpios), jack_gpios);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static int goni_hifi_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- unsigned int pll_out = 24000000;
- int ret = 0;
-
- /* set the cpu DAI configuration */
- ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- /* set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- /* set the codec FLL */
- ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, 0, pll_out,
- params_rate(params) * 256);
- if (ret < 0)
- return ret;
-
- /* set the codec system clock */
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
- params_rate(params) * 256, SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static struct snd_soc_ops goni_hifi_ops = {
- .hw_params = goni_hifi_hw_params,
-};
-
-static int goni_voice_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- unsigned int pll_out = 24000000;
- int ret = 0;
-
- if (params_rate(params) != 8000)
- return -EINVAL;
-
- /* set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J |
- SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- /* set the codec FLL */
- ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL2, 0, pll_out,
- params_rate(params) * 256);
- if (ret < 0)
- return ret;
-
- /* set the codec system clock */
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL2,
- params_rate(params) * 256, SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static struct snd_soc_dai_driver voice_dai = {
- .name = "goni-voice-dai",
- .id = 0,
- .playback = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
- .capture = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
-};
-
-static struct snd_soc_ops goni_voice_ops = {
- .hw_params = goni_voice_hw_params,
-};
-
-static struct snd_soc_dai_link goni_dai[] = {
-{
- .name = "WM8994",
- .stream_name = "WM8994 HiFi",
- .cpu_dai_name = "samsung-i2s.0",
- .codec_dai_name = "wm8994-hifi",
- .platform_name = "samsung-audio",
- .codec_name = "wm8994-codec.0-0x1a",
- .init = goni_wm8994_init,
- .ops = &goni_hifi_ops,
-}, {
- .name = "WM8994 Voice",
- .stream_name = "Voice",
- .cpu_dai_name = "goni-voice-dai",
- .codec_dai_name = "wm8994-voice",
- .platform_name = "samsung-audio",
- .codec_name = "wm8994-codec.0-0x1a",
- .ops = &goni_voice_ops,
-},
-};
-
-static struct snd_soc_card goni = {
- .name = "goni",
- .dai_link = goni_dai,
- .num_links = ARRAY_SIZE(goni_dai),
-};
-
-static int __init goni_init(void)
-{
- int ret;
-
- if (machine_is_aquila()) {
- voice_dai.name = aquila_str[CPU_VOICE_DAI];
- goni_dai[1].cpu_dai_name = aquila_str[CPU_VOICE_DAI];
- goni.name = aquila_str[MACHINE_NAME];
- } else if (!machine_is_goni())
- return -ENODEV;
-
- goni_snd_device = platform_device_alloc("soc-audio", -1);
- if (!goni_snd_device)
- return -ENOMEM;
-
- /* register voice DAI here */
- ret = snd_soc_register_dai(&goni_snd_device->dev, &voice_dai);
- if (ret)
- return ret;
-
- platform_set_drvdata(goni_snd_device, &goni);
- ret = platform_device_add(goni_snd_device);
-
- if (ret)
- platform_device_put(goni_snd_device);
-
- return ret;
-}
-
-static void __exit goni_exit(void)
-{
- platform_device_unregister(goni_snd_device);
-}
-
-module_init(goni_init);
-module_exit(goni_exit);
-
-/* Module information */
-MODULE_DESCRIPTION("ALSA SoC WM8994 GONI(S5PV210)");
-MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* sound/soc/s3c24xx/i2s.c
- *
- * ALSA SoC Audio Layer - Samsung I2S Controller driver
- *
- * Copyright (c) 2010 Samsung Electronics Co. Ltd.
- * Jaswinder Singh <jassi.brar@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include <plat/audio.h>
-
-#include "dma.h"
-#include "i2s.h"
-
-#define I2SCON 0x0
-#define I2SMOD 0x4
-#define I2SFIC 0x8
-#define I2SPSR 0xc
-#define I2STXD 0x10
-#define I2SRXD 0x14
-#define I2SFICS 0x18
-#define I2STXDS 0x1c
-
-#define CON_RSTCLR (1 << 31)
-#define CON_FRXOFSTATUS (1 << 26)
-#define CON_FRXORINTEN (1 << 25)
-#define CON_FTXSURSTAT (1 << 24)
-#define CON_FTXSURINTEN (1 << 23)
-#define CON_TXSDMA_PAUSE (1 << 20)
-#define CON_TXSDMA_ACTIVE (1 << 18)
-
-#define CON_FTXURSTATUS (1 << 17)
-#define CON_FTXURINTEN (1 << 16)
-#define CON_TXFIFO2_EMPTY (1 << 15)
-#define CON_TXFIFO1_EMPTY (1 << 14)
-#define CON_TXFIFO2_FULL (1 << 13)
-#define CON_TXFIFO1_FULL (1 << 12)
-
-#define CON_LRINDEX (1 << 11)
-#define CON_TXFIFO_EMPTY (1 << 10)
-#define CON_RXFIFO_EMPTY (1 << 9)
-#define CON_TXFIFO_FULL (1 << 8)
-#define CON_RXFIFO_FULL (1 << 7)
-#define CON_TXDMA_PAUSE (1 << 6)
-#define CON_RXDMA_PAUSE (1 << 5)
-#define CON_TXCH_PAUSE (1 << 4)
-#define CON_RXCH_PAUSE (1 << 3)
-#define CON_TXDMA_ACTIVE (1 << 2)
-#define CON_RXDMA_ACTIVE (1 << 1)
-#define CON_ACTIVE (1 << 0)
-
-#define MOD_OPCLK_CDCLK_OUT (0 << 30)
-#define MOD_OPCLK_CDCLK_IN (1 << 30)
-#define MOD_OPCLK_BCLK_OUT (2 << 30)
-#define MOD_OPCLK_PCLK (3 << 30)
-#define MOD_OPCLK_MASK (3 << 30)
-#define MOD_TXS_IDMA (1 << 28) /* Sec_TXFIFO use I-DMA */
-
-#define MOD_BLCS_SHIFT 26
-#define MOD_BLCS_16BIT (0 << MOD_BLCS_SHIFT)
-#define MOD_BLCS_8BIT (1 << MOD_BLCS_SHIFT)
-#define MOD_BLCS_24BIT (2 << MOD_BLCS_SHIFT)
-#define MOD_BLCS_MASK (3 << MOD_BLCS_SHIFT)
-#define MOD_BLCP_SHIFT 24
-#define MOD_BLCP_16BIT (0 << MOD_BLCP_SHIFT)
-#define MOD_BLCP_8BIT (1 << MOD_BLCP_SHIFT)
-#define MOD_BLCP_24BIT (2 << MOD_BLCP_SHIFT)
-#define MOD_BLCP_MASK (3 << MOD_BLCP_SHIFT)
-
-#define MOD_C2DD_HHALF (1 << 21) /* Discard Higher-half */
-#define MOD_C2DD_LHALF (1 << 20) /* Discard Lower-half */
-#define MOD_C1DD_HHALF (1 << 19)
-#define MOD_C1DD_LHALF (1 << 18)
-#define MOD_DC2_EN (1 << 17)
-#define MOD_DC1_EN (1 << 16)
-#define MOD_BLC_16BIT (0 << 13)
-#define MOD_BLC_8BIT (1 << 13)
-#define MOD_BLC_24BIT (2 << 13)
-#define MOD_BLC_MASK (3 << 13)
-
-#define MOD_IMS_SYSMUX (1 << 10)
-#define MOD_SLAVE (1 << 11)
-#define MOD_TXONLY (0 << 8)
-#define MOD_RXONLY (1 << 8)
-#define MOD_TXRX (2 << 8)
-#define MOD_MASK (3 << 8)
-#define MOD_LR_LLOW (0 << 7)
-#define MOD_LR_RLOW (1 << 7)
-#define MOD_SDF_IIS (0 << 5)
-#define MOD_SDF_MSB (1 << 5)
-#define MOD_SDF_LSB (2 << 5)
-#define MOD_SDF_MASK (3 << 5)
-#define MOD_RCLK_256FS (0 << 3)
-#define MOD_RCLK_512FS (1 << 3)
-#define MOD_RCLK_384FS (2 << 3)
-#define MOD_RCLK_768FS (3 << 3)
-#define MOD_RCLK_MASK (3 << 3)
-#define MOD_BCLK_32FS (0 << 1)
-#define MOD_BCLK_48FS (1 << 1)
-#define MOD_BCLK_16FS (2 << 1)
-#define MOD_BCLK_24FS (3 << 1)
-#define MOD_BCLK_MASK (3 << 1)
-#define MOD_8BIT (1 << 0)
-
-#define MOD_CDCLKCON (1 << 12)
-
-#define PSR_PSREN (1 << 15)
-
-#define FIC_TX2COUNT(x) (((x) >> 24) & 0xf)
-#define FIC_TX1COUNT(x) (((x) >> 16) & 0xf)
-
-#define FIC_TXFLUSH (1 << 15)
-#define FIC_RXFLUSH (1 << 7)
-#define FIC_TXCOUNT(x) (((x) >> 8) & 0xf)
-#define FIC_RXCOUNT(x) (((x) >> 0) & 0xf)
-#define FICS_TXCOUNT(x) (((x) >> 8) & 0x7f)
-
-#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
-
-struct i2s_dai {
- /* Platform device for this DAI */
- struct platform_device *pdev;
- /* IOREMAP'd SFRs */
- void __iomem *addr;
- /* Physical base address of SFRs */
- u32 base;
- /* Rate of RCLK source clock */
- unsigned long rclk_srcrate;
- /* Frame Clock */
- unsigned frmclk;
- /*
- * Specifically requested RCLK,BCLK by MACHINE Driver.
- * 0 indicates CPU driver is free to choose any value.
- */
- unsigned rfs, bfs;
- /* I2S Controller's core clock */
- struct clk *clk;
- /* Clock for generating I2S signals */
- struct clk *op_clk;
- /* Array of clock names for op_clk */
- const char **src_clk;
- /* Pointer to the Primary_Fifo if this is Sec_Fifo, NULL otherwise */
- struct i2s_dai *pri_dai;
- /* Pointer to the Secondary_Fifo if it has one, NULL otherwise */
- struct i2s_dai *sec_dai;
-#define DAI_OPENED (1 << 0) /* Dai is opened */
-#define DAI_MANAGER (1 << 1) /* Dai is the manager */
- unsigned mode;
- /* Driver for this DAI */
- struct snd_soc_dai_driver i2s_dai_drv;
- /* DMA parameters */
- struct s3c_dma_params dma_playback;
- struct s3c_dma_params dma_capture;
- u32 quirks;
- u32 suspend_i2smod;
- u32 suspend_i2scon;
- u32 suspend_i2spsr;
-};
-
-/* Lock for cross i/f checks */
-static DEFINE_SPINLOCK(lock);
-
-/* If this is the 'overlay' stereo DAI */
-static inline bool is_secondary(struct i2s_dai *i2s)
-{
- return i2s->pri_dai ? true : false;
-}
-
-/* If operating in SoC-Slave mode */
-static inline bool is_slave(struct i2s_dai *i2s)
-{
- return (readl(i2s->addr + I2SMOD) & MOD_SLAVE) ? true : false;
-}
-
-/* If this interface of the controller is transmitting data */
-static inline bool tx_active(struct i2s_dai *i2s)
-{
- u32 active;
-
- if (!i2s)
- return false;
-
- active = readl(i2s->addr + I2SMOD);
-
- if (is_secondary(i2s))
- active &= CON_TXSDMA_ACTIVE;
- else
- active &= CON_TXDMA_ACTIVE;
-
- return active ? true : false;
-}
-
-/* If the other interface of the controller is transmitting data */
-static inline bool other_tx_active(struct i2s_dai *i2s)
-{
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
-
- return tx_active(other);
-}
-
-/* If any interface of the controller is transmitting data */
-static inline bool any_tx_active(struct i2s_dai *i2s)
-{
- return tx_active(i2s) || other_tx_active(i2s);
-}
-
-/* If this interface of the controller is receiving data */
-static inline bool rx_active(struct i2s_dai *i2s)
-{
- u32 active;
-
- if (!i2s)
- return false;
-
- active = readl(i2s->addr + I2SMOD) & CON_RXDMA_ACTIVE;
-
- return active ? true : false;
-}
-
-/* If the other interface of the controller is receiving data */
-static inline bool other_rx_active(struct i2s_dai *i2s)
-{
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
-
- return rx_active(other);
-}
-
-/* If any interface of the controller is receiving data */
-static inline bool any_rx_active(struct i2s_dai *i2s)
-{
- return rx_active(i2s) || other_rx_active(i2s);
-}
-
-/* If the other DAI is transmitting or receiving data */
-static inline bool other_active(struct i2s_dai *i2s)
-{
- return other_rx_active(i2s) || other_tx_active(i2s);
-}
-
-/* If this DAI is transmitting or receiving data */
-static inline bool this_active(struct i2s_dai *i2s)
-{
- return tx_active(i2s) || rx_active(i2s);
-}
-
-/* If the controller is active anyway */
-static inline bool any_active(struct i2s_dai *i2s)
-{
- return this_active(i2s) || other_active(i2s);
-}
-
-static inline struct i2s_dai *to_info(struct snd_soc_dai *dai)
-{
- return snd_soc_dai_get_drvdata(dai);
-}
-
-static inline bool is_opened(struct i2s_dai *i2s)
-{
- if (i2s && (i2s->mode & DAI_OPENED))
- return true;
- else
- return false;
-}
-
-static inline bool is_manager(struct i2s_dai *i2s)
-{
- if (is_opened(i2s) && (i2s->mode & DAI_MANAGER))
- return true;
- else
- return false;
-}
-
-/* Read RCLK of I2S (in multiples of LRCLK) */
-static inline unsigned get_rfs(struct i2s_dai *i2s)
-{
- u32 rfs = (readl(i2s->addr + I2SMOD) >> 3) & 0x3;
-
- switch (rfs) {
- case 3: return 768;
- case 2: return 384;
- case 1: return 512;
- default: return 256;
- }
-}
-
-/* Write RCLK of I2S (in multiples of LRCLK) */
-static inline void set_rfs(struct i2s_dai *i2s, unsigned rfs)
-{
- u32 mod = readl(i2s->addr + I2SMOD);
-
- mod &= ~MOD_RCLK_MASK;
-
- switch (rfs) {
- case 768:
- mod |= MOD_RCLK_768FS;
- break;
- case 512:
- mod |= MOD_RCLK_512FS;
- break;
- case 384:
- mod |= MOD_RCLK_384FS;
- break;
- default:
- mod |= MOD_RCLK_256FS;
- break;
- }
-
- writel(mod, i2s->addr + I2SMOD);
-}
-
-/* Read Bit-Clock of I2S (in multiples of LRCLK) */
-static inline unsigned get_bfs(struct i2s_dai *i2s)
-{
- u32 bfs = (readl(i2s->addr + I2SMOD) >> 1) & 0x3;
-
- switch (bfs) {
- case 3: return 24;
- case 2: return 16;
- case 1: return 48;
- default: return 32;
- }
-}
-
-/* Write Bit-Clock of I2S (in multiples of LRCLK) */
-static inline void set_bfs(struct i2s_dai *i2s, unsigned bfs)
-{
- u32 mod = readl(i2s->addr + I2SMOD);
-
- mod &= ~MOD_BCLK_MASK;
-
- switch (bfs) {
- case 48:
- mod |= MOD_BCLK_48FS;
- break;
- case 32:
- mod |= MOD_BCLK_32FS;
- break;
- case 24:
- mod |= MOD_BCLK_24FS;
- break;
- case 16:
- mod |= MOD_BCLK_16FS;
- break;
- default:
- dev_err(&i2s->pdev->dev, "Wrong BCLK Divider!\n");
- return;
- }
-
- writel(mod, i2s->addr + I2SMOD);
-}
-
-/* Sample-Size */
-static inline int get_blc(struct i2s_dai *i2s)
-{
- int blc = readl(i2s->addr + I2SMOD);
-
- blc = (blc >> 13) & 0x3;
-
- switch (blc) {
- case 2: return 24;
- case 1: return 8;
- default: return 16;
- }
-}
-
-/* TX Channel Control */
-static void i2s_txctrl(struct i2s_dai *i2s, int on)
-{
- void __iomem *addr = i2s->addr;
- u32 con = readl(addr + I2SCON);
- u32 mod = readl(addr + I2SMOD) & ~MOD_MASK;
-
- if (on) {
- con |= CON_ACTIVE;
- con &= ~CON_TXCH_PAUSE;
-
- if (is_secondary(i2s)) {
- con |= CON_TXSDMA_ACTIVE;
- con &= ~CON_TXSDMA_PAUSE;
- } else {
- con |= CON_TXDMA_ACTIVE;
- con &= ~CON_TXDMA_PAUSE;
- }
-
- if (any_rx_active(i2s))
- mod |= MOD_TXRX;
- else
- mod |= MOD_TXONLY;
- } else {
- if (is_secondary(i2s)) {
- con |= CON_TXSDMA_PAUSE;
- con &= ~CON_TXSDMA_ACTIVE;
- } else {
- con |= CON_TXDMA_PAUSE;
- con &= ~CON_TXDMA_ACTIVE;
- }
-
- if (other_tx_active(i2s)) {
- writel(con, addr + I2SCON);
- return;
- }
-
- con |= CON_TXCH_PAUSE;
-
- if (any_rx_active(i2s))
- mod |= MOD_RXONLY;
- else
- con &= ~CON_ACTIVE;
- }
-
- writel(mod, addr + I2SMOD);
- writel(con, addr + I2SCON);
-}
-
-/* RX Channel Control */
-static void i2s_rxctrl(struct i2s_dai *i2s, int on)
-{
- void __iomem *addr = i2s->addr;
- u32 con = readl(addr + I2SCON);
- u32 mod = readl(addr + I2SMOD) & ~MOD_MASK;
-
- if (on) {
- con |= CON_RXDMA_ACTIVE | CON_ACTIVE;
- con &= ~(CON_RXDMA_PAUSE | CON_RXCH_PAUSE);
-
- if (any_tx_active(i2s))
- mod |= MOD_TXRX;
- else
- mod |= MOD_RXONLY;
- } else {
- con |= CON_RXDMA_PAUSE | CON_RXCH_PAUSE;
- con &= ~CON_RXDMA_ACTIVE;
-
- if (any_tx_active(i2s))
- mod |= MOD_TXONLY;
- else
- con &= ~CON_ACTIVE;
- }
-
- writel(mod, addr + I2SMOD);
- writel(con, addr + I2SCON);
-}
-
-/* Flush FIFO of an interface */
-static inline void i2s_fifo(struct i2s_dai *i2s, u32 flush)
-{
- void __iomem *fic;
- u32 val;
-
- if (!i2s)
- return;
-
- if (is_secondary(i2s))
- fic = i2s->addr + I2SFICS;
- else
- fic = i2s->addr + I2SFIC;
-
- /* Flush the FIFO */
- writel(readl(fic) | flush, fic);
-
- /* Be patient */
- val = msecs_to_loops(1) / 1000; /* 1 usec */
- while (--val)
- cpu_relax();
-
- writel(readl(fic) & ~flush, fic);
-}
-
-static int i2s_set_sysclk(struct snd_soc_dai *dai,
- int clk_id, unsigned int rfs, int dir)
-{
- struct i2s_dai *i2s = to_info(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
- u32 mod = readl(i2s->addr + I2SMOD);
-
- switch (clk_id) {
- case SAMSUNG_I2S_CDCLK:
- /* Shouldn't matter in GATING(CLOCK_IN) mode */
- if (dir == SND_SOC_CLOCK_IN)
- rfs = 0;
-
- if ((rfs && other->rfs && (other->rfs != rfs)) ||
- (any_active(i2s) &&
- (((dir == SND_SOC_CLOCK_IN)
- && !(mod & MOD_CDCLKCON)) ||
- ((dir == SND_SOC_CLOCK_OUT)
- && (mod & MOD_CDCLKCON))))) {
- dev_err(&i2s->pdev->dev,
- "%s:%d Other DAI busy\n", __func__, __LINE__);
- return -EAGAIN;
- }
-
- if (dir == SND_SOC_CLOCK_IN)
- mod |= MOD_CDCLKCON;
- else
- mod &= ~MOD_CDCLKCON;
-
- i2s->rfs = rfs;
- break;
-
- case SAMSUNG_I2S_RCLKSRC_0: /* clock corrsponding to IISMOD[10] := 0 */
- case SAMSUNG_I2S_RCLKSRC_1: /* clock corrsponding to IISMOD[10] := 1 */
- if ((i2s->quirks & QUIRK_NO_MUXPSR)
- || (clk_id == SAMSUNG_I2S_RCLKSRC_0))
- clk_id = 0;
- else
- clk_id = 1;
-
- if (!any_active(i2s)) {
- if (i2s->op_clk) {
- if ((clk_id && !(mod & MOD_IMS_SYSMUX)) ||
- (!clk_id && (mod & MOD_IMS_SYSMUX))) {
- clk_disable(i2s->op_clk);
- clk_put(i2s->op_clk);
- } else {
- return 0;
- }
- }
-
- i2s->op_clk = clk_get(&i2s->pdev->dev,
- i2s->src_clk[clk_id]);
- clk_enable(i2s->op_clk);
- i2s->rclk_srcrate = clk_get_rate(i2s->op_clk);
-
- /* Over-ride the other's */
- if (other) {
- other->op_clk = i2s->op_clk;
- other->rclk_srcrate = i2s->rclk_srcrate;
- }
- } else if ((!clk_id && (mod & MOD_IMS_SYSMUX))
- || (clk_id && !(mod & MOD_IMS_SYSMUX))) {
- dev_err(&i2s->pdev->dev,
- "%s:%d Other DAI busy\n", __func__, __LINE__);
- return -EAGAIN;
- } else {
- /* Call can't be on the active DAI */
- i2s->op_clk = other->op_clk;
- i2s->rclk_srcrate = other->rclk_srcrate;
- return 0;
- }
-
- if (clk_id == 0)
- mod &= ~MOD_IMS_SYSMUX;
- else
- mod |= MOD_IMS_SYSMUX;
- break;
-
- default:
- dev_err(&i2s->pdev->dev, "We don't serve that!\n");
- return -EINVAL;
- }
-
- writel(mod, i2s->addr + I2SMOD);
-
- return 0;
-}
-
-static int i2s_set_fmt(struct snd_soc_dai *dai,
- unsigned int fmt)
-{
- struct i2s_dai *i2s = to_info(dai);
- u32 mod = readl(i2s->addr + I2SMOD);
- u32 tmp = 0;
-
- /* Format is priority */
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_RIGHT_J:
- tmp |= MOD_LR_RLOW;
- tmp |= MOD_SDF_MSB;
- break;
- case SND_SOC_DAIFMT_LEFT_J:
- tmp |= MOD_LR_RLOW;
- tmp |= MOD_SDF_LSB;
- break;
- case SND_SOC_DAIFMT_I2S:
- tmp |= MOD_SDF_IIS;
- break;
- default:
- dev_err(&i2s->pdev->dev, "Format not supported\n");
- return -EINVAL;
- }
-
- /*
- * INV flag is relative to the FORMAT flag - if set it simply
- * flips the polarity specified by the Standard
- */
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- break;
- case SND_SOC_DAIFMT_NB_IF:
- if (tmp & MOD_LR_RLOW)
- tmp &= ~MOD_LR_RLOW;
- else
- tmp |= MOD_LR_RLOW;
- break;
- default:
- dev_err(&i2s->pdev->dev, "Polarity not supported\n");
- return -EINVAL;
- }
-
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- tmp |= MOD_SLAVE;
- break;
- case SND_SOC_DAIFMT_CBS_CFS:
- /* Set default source clock in Master mode */
- if (i2s->rclk_srcrate == 0)
- i2s_set_sysclk(dai, SAMSUNG_I2S_RCLKSRC_0,
- 0, SND_SOC_CLOCK_IN);
- break;
- default:
- dev_err(&i2s->pdev->dev, "master/slave format not supported\n");
- return -EINVAL;
- }
-
- if (any_active(i2s) &&
- ((mod & (MOD_SDF_MASK | MOD_LR_RLOW
- | MOD_SLAVE)) != tmp)) {
- dev_err(&i2s->pdev->dev,
- "%s:%d Other DAI busy\n", __func__, __LINE__);
- return -EAGAIN;
- }
-
- mod &= ~(MOD_SDF_MASK | MOD_LR_RLOW | MOD_SLAVE);
- mod |= tmp;
- writel(mod, i2s->addr + I2SMOD);
-
- return 0;
-}
-
-static int i2s_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
-{
- struct i2s_dai *i2s = to_info(dai);
- u32 mod = readl(i2s->addr + I2SMOD);
-
- if (!is_secondary(i2s))
- mod &= ~(MOD_DC2_EN | MOD_DC1_EN);
-
- switch (params_channels(params)) {
- case 6:
- mod |= MOD_DC2_EN;
- case 4:
- mod |= MOD_DC1_EN;
- break;
- case 2:
- break;
- default:
- dev_err(&i2s->pdev->dev, "%d channels not supported\n",
- params_channels(params));
- return -EINVAL;
- }
-
- if (is_secondary(i2s))
- mod &= ~MOD_BLCS_MASK;
- else
- mod &= ~MOD_BLCP_MASK;
-
- if (is_manager(i2s))
- mod &= ~MOD_BLC_MASK;
-
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S8:
- if (is_secondary(i2s))
- mod |= MOD_BLCS_8BIT;
- else
- mod |= MOD_BLCP_8BIT;
- if (is_manager(i2s))
- mod |= MOD_BLC_8BIT;
- break;
- case SNDRV_PCM_FORMAT_S16_LE:
- if (is_secondary(i2s))
- mod |= MOD_BLCS_16BIT;
- else
- mod |= MOD_BLCP_16BIT;
- if (is_manager(i2s))
- mod |= MOD_BLC_16BIT;
- break;
- case SNDRV_PCM_FORMAT_S24_LE:
- if (is_secondary(i2s))
- mod |= MOD_BLCS_24BIT;
- else
- mod |= MOD_BLCP_24BIT;
- if (is_manager(i2s))
- mod |= MOD_BLC_24BIT;
- break;
- default:
- dev_err(&i2s->pdev->dev, "Format(%d) not supported\n",
- params_format(params));
- return -EINVAL;
- }
- writel(mod, i2s->addr + I2SMOD);
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- snd_soc_dai_set_dma_data(dai, substream,
- (void *)&i2s->dma_playback);
- else
- snd_soc_dai_set_dma_data(dai, substream,
- (void *)&i2s->dma_capture);
-
- i2s->frmclk = params_rate(params);
-
- return 0;
-}
-
-/* We set constraints on the substream acc to the version of I2S */
-static int i2s_startup(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct i2s_dai *i2s = to_info(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
- unsigned long flags;
-
- spin_lock_irqsave(&lock, flags);
-
- i2s->mode |= DAI_OPENED;
-
- if (is_manager(other))
- i2s->mode &= ~DAI_MANAGER;
- else
- i2s->mode |= DAI_MANAGER;
-
- /* Enforce set_sysclk in Master mode */
- i2s->rclk_srcrate = 0;
-
- spin_unlock_irqrestore(&lock, flags);
-
- return 0;
-}
-
-static void i2s_shutdown(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct i2s_dai *i2s = to_info(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
- unsigned long flags;
-
- spin_lock_irqsave(&lock, flags);
-
- i2s->mode &= ~DAI_OPENED;
- i2s->mode &= ~DAI_MANAGER;
-
- if (is_opened(other))
- other->mode |= DAI_MANAGER;
-
- /* Reset any constraint on RFS and BFS */
- i2s->rfs = 0;
- i2s->bfs = 0;
-
- spin_unlock_irqrestore(&lock, flags);
-
- /* Gate CDCLK by default */
- if (!is_opened(other))
- i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK,
- 0, SND_SOC_CLOCK_IN);
-}
-
-static int config_setup(struct i2s_dai *i2s)
-{
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
- unsigned rfs, bfs, blc;
- u32 psr;
-
- blc = get_blc(i2s);
-
- bfs = i2s->bfs;
-
- if (!bfs && other)
- bfs = other->bfs;
-
- /* Select least possible multiple(2) if no constraint set */
- if (!bfs)
- bfs = blc * 2;
-
- rfs = i2s->rfs;
-
- if (!rfs && other)
- rfs = other->rfs;
-
- if ((rfs == 256 || rfs == 512) && (blc == 24)) {
- dev_err(&i2s->pdev->dev,
- "%d-RFS not supported for 24-blc\n", rfs);
- return -EINVAL;
- }
-
- if (!rfs) {
- if (bfs == 16 || bfs == 32)
- rfs = 256;
- else
- rfs = 384;
- }
-
- /* If already setup and running */
- if (any_active(i2s) && (get_rfs(i2s) != rfs || get_bfs(i2s) != bfs)) {
- dev_err(&i2s->pdev->dev,
- "%s:%d Other DAI busy\n", __func__, __LINE__);
- return -EAGAIN;
- }
-
- /* Don't bother RFS, BFS & PSR in Slave mode */
- if (is_slave(i2s))
- return 0;
-
- set_bfs(i2s, bfs);
- set_rfs(i2s, rfs);
-
- if (!(i2s->quirks & QUIRK_NO_MUXPSR)) {
- psr = i2s->rclk_srcrate / i2s->frmclk / rfs;
- writel(((psr - 1) << 8) | PSR_PSREN, i2s->addr + I2SPSR);
- dev_dbg(&i2s->pdev->dev,
- "RCLK_SRC=%luHz PSR=%u, RCLK=%dfs, BCLK=%dfs\n",
- i2s->rclk_srcrate, psr, rfs, bfs);
- }
-
- return 0;
-}
-
-static int i2s_trigger(struct snd_pcm_substream *substream,
- int cmd, struct snd_soc_dai *dai)
-{
- int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct i2s_dai *i2s = to_info(rtd->cpu_dai);
- unsigned long flags;
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- local_irq_save(flags);
-
- if (capture)
- i2s_fifo(i2s, FIC_RXFLUSH);
- else
- i2s_fifo(i2s, FIC_TXFLUSH);
-
- if (config_setup(i2s)) {
- local_irq_restore(flags);
- return -EINVAL;
- }
-
- if (capture)
- i2s_rxctrl(i2s, 1);
- else
- i2s_txctrl(i2s, 1);
-
- local_irq_restore(flags);
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- local_irq_save(flags);
-
- if (capture)
- i2s_rxctrl(i2s, 0);
- else
- i2s_txctrl(i2s, 0);
-
- local_irq_restore(flags);
- break;
- }
-
- return 0;
-}
-
-static int i2s_set_clkdiv(struct snd_soc_dai *dai,
- int div_id, int div)
-{
- struct i2s_dai *i2s = to_info(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
-
- switch (div_id) {
- case SAMSUNG_I2S_DIV_BCLK:
- if ((any_active(i2s) && div && (get_bfs(i2s) != div))
- || (other && other->bfs && (other->bfs != div))) {
- dev_err(&i2s->pdev->dev,
- "%s:%d Other DAI busy\n", __func__, __LINE__);
- return -EAGAIN;
- }
- i2s->bfs = div;
- break;
- default:
- dev_err(&i2s->pdev->dev,
- "Invalid clock divider(%d)\n", div_id);
- return -EINVAL;
- }
-
- return 0;
-}
-
-static snd_pcm_sframes_t
-i2s_delay(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
-{
- struct i2s_dai *i2s = to_info(dai);
- u32 reg = readl(i2s->addr + I2SFIC);
- snd_pcm_sframes_t delay;
-
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- delay = FIC_RXCOUNT(reg);
- else if (is_secondary(i2s))
- delay = FICS_TXCOUNT(readl(i2s->addr + I2SFICS));
- else
- delay = FIC_TXCOUNT(reg);
-
- return delay;
-}
-
-#ifdef CONFIG_PM
-static int i2s_suspend(struct snd_soc_dai *dai)
-{
- struct i2s_dai *i2s = to_info(dai);
-
- if (dai->active) {
- i2s->suspend_i2smod = readl(i2s->addr + I2SMOD);
- i2s->suspend_i2scon = readl(i2s->addr + I2SCON);
- i2s->suspend_i2spsr = readl(i2s->addr + I2SPSR);
- }
-
- return 0;
-}
-
-static int i2s_resume(struct snd_soc_dai *dai)
-{
- struct i2s_dai *i2s = to_info(dai);
-
- if (dai->active) {
- writel(i2s->suspend_i2scon, i2s->addr + I2SCON);
- writel(i2s->suspend_i2smod, i2s->addr + I2SMOD);
- writel(i2s->suspend_i2spsr, i2s->addr + I2SPSR);
- }
-
- return 0;
-}
-#else
-#define i2s_suspend NULL
-#define i2s_resume NULL
-#endif
-
-static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
-{
- struct i2s_dai *i2s = to_info(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
-
- if (other && other->clk) /* If this is probe on secondary */
- goto probe_exit;
-
- i2s->addr = ioremap(i2s->base, 0x100);
- if (i2s->addr == NULL) {
- dev_err(&i2s->pdev->dev, "cannot ioremap registers\n");
- return -ENXIO;
- }
-
- i2s->clk = clk_get(&i2s->pdev->dev, "iis");
- if (IS_ERR(i2s->clk)) {
- dev_err(&i2s->pdev->dev, "failed to get i2s_clock\n");
- iounmap(i2s->addr);
- return -ENOENT;
- }
- clk_enable(i2s->clk);
-
- if (other) {
- other->addr = i2s->addr;
- other->clk = i2s->clk;
- }
-
- if (i2s->quirks & QUIRK_NEED_RSTCLR)
- writel(CON_RSTCLR, i2s->addr + I2SCON);
-
-probe_exit:
- /* Reset any constraint on RFS and BFS */
- i2s->rfs = 0;
- i2s->bfs = 0;
- i2s_txctrl(i2s, 0);
- i2s_rxctrl(i2s, 0);
- i2s_fifo(i2s, FIC_TXFLUSH);
- i2s_fifo(other, FIC_TXFLUSH);
- i2s_fifo(i2s, FIC_RXFLUSH);
-
- /* Gate CDCLK by default */
- if (!is_opened(other))
- i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK,
- 0, SND_SOC_CLOCK_IN);
-
- return 0;
-}
-
-static int samsung_i2s_dai_remove(struct snd_soc_dai *dai)
-{
- struct i2s_dai *i2s = snd_soc_dai_get_drvdata(dai);
- struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
-
- if (!other || !other->clk) {
-
- if (i2s->quirks & QUIRK_NEED_RSTCLR)
- writel(0, i2s->addr + I2SCON);
-
- clk_disable(i2s->clk);
- clk_put(i2s->clk);
-
- iounmap(i2s->addr);
- }
-
- i2s->clk = NULL;
-
- return 0;
-}
-
-static struct snd_soc_dai_ops samsung_i2s_dai_ops = {
- .trigger = i2s_trigger,
- .hw_params = i2s_hw_params,
- .set_fmt = i2s_set_fmt,
- .set_clkdiv = i2s_set_clkdiv,
- .set_sysclk = i2s_set_sysclk,
- .startup = i2s_startup,
- .shutdown = i2s_shutdown,
- .delay = i2s_delay,
-};
-
-#define SAMSUNG_I2S_RATES SNDRV_PCM_RATE_8000_96000
-
-#define SAMSUNG_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | \
- SNDRV_PCM_FMTBIT_S16_LE | \
- SNDRV_PCM_FMTBIT_S24_LE)
-
-static __devinit
-struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
-{
- struct i2s_dai *i2s;
-
- i2s = kzalloc(sizeof(struct i2s_dai), GFP_KERNEL);
- if (i2s == NULL)
- return NULL;
-
- i2s->pdev = pdev;
- i2s->pri_dai = NULL;
- i2s->sec_dai = NULL;
- i2s->i2s_dai_drv.symmetric_rates = 1;
- i2s->i2s_dai_drv.probe = samsung_i2s_dai_probe;
- i2s->i2s_dai_drv.remove = samsung_i2s_dai_remove;
- i2s->i2s_dai_drv.ops = &samsung_i2s_dai_ops;
- i2s->i2s_dai_drv.suspend = i2s_suspend;
- i2s->i2s_dai_drv.resume = i2s_resume;
- i2s->i2s_dai_drv.playback.channels_min = 2;
- i2s->i2s_dai_drv.playback.channels_max = 2;
- i2s->i2s_dai_drv.playback.rates = SAMSUNG_I2S_RATES;
- i2s->i2s_dai_drv.playback.formats = SAMSUNG_I2S_FMTS;
-
- if (!sec) {
- i2s->i2s_dai_drv.capture.channels_min = 2;
- i2s->i2s_dai_drv.capture.channels_max = 2;
- i2s->i2s_dai_drv.capture.rates = SAMSUNG_I2S_RATES;
- i2s->i2s_dai_drv.capture.formats = SAMSUNG_I2S_FMTS;
- } else { /* Create a new platform_device for Secondary */
- i2s->pdev = platform_device_register_resndata(NULL,
- pdev->name, pdev->id + SAMSUNG_I2S_SECOFF,
- NULL, 0, NULL, 0);
- if (IS_ERR(i2s->pdev)) {
- kfree(i2s);
- return NULL;
- }
- }
-
- /* Pre-assign snd_soc_dai_set_drvdata */
- dev_set_drvdata(&i2s->pdev->dev, i2s);
-
- return i2s;
-}
-
-static __devinit int samsung_i2s_probe(struct platform_device *pdev)
-{
- u32 dma_pl_chan, dma_cp_chan, dma_pl_sec_chan;
- struct i2s_dai *pri_dai, *sec_dai = NULL;
- struct s3c_audio_pdata *i2s_pdata;
- struct samsung_i2s *i2s_cfg;
- struct resource *res;
- u32 regs_base, quirks;
- int ret = 0;
-
- /* Call during Seconday interface registration */
- if (pdev->id >= SAMSUNG_I2S_SECOFF) {
- sec_dai = dev_get_drvdata(&pdev->dev);
- snd_soc_register_dai(&sec_dai->pdev->dev,
- &sec_dai->i2s_dai_drv);
- return 0;
- }
-
- i2s_pdata = pdev->dev.platform_data;
- if (i2s_pdata == NULL) {
- dev_err(&pdev->dev, "Can't work without s3c_audio_pdata\n");
- return -EINVAL;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (!res) {
- dev_err(&pdev->dev, "Unable to get I2S-TX dma resource\n");
- return -ENXIO;
- }
- dma_pl_chan = res->start;
-
- res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
- if (!res) {
- dev_err(&pdev->dev, "Unable to get I2S-RX dma resource\n");
- return -ENXIO;
- }
- dma_cp_chan = res->start;
-
- res = platform_get_resource(pdev, IORESOURCE_DMA, 2);
- if (res)
- dma_pl_sec_chan = res->start;
- else
- dma_pl_sec_chan = 0;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "Unable to get I2S SFR address\n");
- return -ENXIO;
- }
-
- if (!request_mem_region(res->start, resource_size(res),
- "samsung-i2s")) {
- dev_err(&pdev->dev, "Unable to request SFR region\n");
- return -EBUSY;
- }
- regs_base = res->start;
-
- i2s_cfg = &i2s_pdata->type.i2s;
- quirks = i2s_cfg->quirks;
-
- pri_dai = i2s_alloc_dai(pdev, false);
- if (!pri_dai) {
- dev_err(&pdev->dev, "Unable to alloc I2S_pri\n");
- ret = -ENOMEM;
- goto err1;
- }
-
- pri_dai->dma_playback.dma_addr = regs_base + I2STXD;
- pri_dai->dma_capture.dma_addr = regs_base + I2SRXD;
- pri_dai->dma_playback.client =
- (struct s3c2410_dma_client *)&pri_dai->dma_playback;
- pri_dai->dma_capture.client =
- (struct s3c2410_dma_client *)&pri_dai->dma_capture;
- pri_dai->dma_playback.channel = dma_pl_chan;
- pri_dai->dma_capture.channel = dma_cp_chan;
- pri_dai->src_clk = i2s_cfg->src_clk;
- pri_dai->dma_playback.dma_size = 4;
- pri_dai->dma_capture.dma_size = 4;
- pri_dai->base = regs_base;
- pri_dai->quirks = quirks;
-
- if (quirks & QUIRK_PRI_6CHAN)
- pri_dai->i2s_dai_drv.playback.channels_max = 6;
-
- if (quirks & QUIRK_SEC_DAI) {
- sec_dai = i2s_alloc_dai(pdev, true);
- if (!sec_dai) {
- dev_err(&pdev->dev, "Unable to alloc I2S_sec\n");
- ret = -ENOMEM;
- goto err2;
- }
- sec_dai->dma_playback.dma_addr = regs_base + I2STXDS;
- sec_dai->dma_playback.client =
- (struct s3c2410_dma_client *)&sec_dai->dma_playback;
- /* Use iDMA always if SysDMA not provided */
- sec_dai->dma_playback.channel = dma_pl_sec_chan ? : -1;
- sec_dai->src_clk = i2s_cfg->src_clk;
- sec_dai->dma_playback.dma_size = 4;
- sec_dai->base = regs_base;
- sec_dai->quirks = quirks;
- sec_dai->pri_dai = pri_dai;
- pri_dai->sec_dai = sec_dai;
- }
-
- if (i2s_pdata->cfg_gpio && i2s_pdata->cfg_gpio(pdev)) {
- dev_err(&pdev->dev, "Unable to configure gpio\n");
- ret = -EINVAL;
- goto err3;
- }
-
- snd_soc_register_dai(&pri_dai->pdev->dev, &pri_dai->i2s_dai_drv);
-
- return 0;
-err3:
- kfree(sec_dai);
-err2:
- kfree(pri_dai);
-err1:
- release_mem_region(regs_base, resource_size(res));
-
- return ret;
-}
-
-static __devexit int samsung_i2s_remove(struct platform_device *pdev)
-{
- struct i2s_dai *i2s, *other;
-
- i2s = dev_get_drvdata(&pdev->dev);
- other = i2s->pri_dai ? : i2s->sec_dai;
-
- if (other) {
- other->pri_dai = NULL;
- other->sec_dai = NULL;
- } else {
- struct resource *res;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res)
- release_mem_region(res->start, resource_size(res));
- }
-
- i2s->pri_dai = NULL;
- i2s->sec_dai = NULL;
-
- kfree(i2s);
-
- snd_soc_unregister_dai(&pdev->dev);
-
- return 0;
-}
-
-static struct platform_driver samsung_i2s_driver = {
- .probe = samsung_i2s_probe,
- .remove = samsung_i2s_remove,
- .driver = {
- .name = "samsung-i2s",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init samsung_i2s_init(void)
-{
- return platform_driver_register(&samsung_i2s_driver);
-}
-module_init(samsung_i2s_init);
-
-static void __exit samsung_i2s_exit(void)
-{
- platform_driver_unregister(&samsung_i2s_driver);
-}
-module_exit(samsung_i2s_exit);
-
-/* Module information */
-MODULE_AUTHOR("Jaswinder Singh, <jassi.brar@samsung.com>");
-MODULE_DESCRIPTION("Samsung I2S Interface");
-MODULE_ALIAS("platform:samsung-i2s");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* sound/soc/s3c24xx/i2s.h
- *
- * ALSA SoC Audio Layer - Samsung I2S Controller driver
- *
- * Copyright (c) 2010 Samsung Electronics Co. Ltd.
- * Jaswinder Singh <jassi.brar@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __SND_SOC_SAMSUNG_I2S_H
-#define __SND_SOC_SAMSUNG_I2S_H
-
-/*
- * Maximum number of I2S blocks that any SoC can have.
- * The secondary interface of a CPU dai(if there exists any),
- * is indexed at [cpu-dai's ID + SAMSUNG_I2S_SECOFF]
- */
-#define SAMSUNG_I2S_SECOFF 4
-
-#define SAMSUNG_I2S_DIV_BCLK 1
-
-#define SAMSUNG_I2S_RCLKSRC_0 0
-#define SAMSUNG_I2S_RCLKSRC_1 1
-#define SAMSUNG_I2S_CDCLK 2
-
-#endif /* __SND_SOC_SAMSUNG_I2S_H */
+++ /dev/null
-/* sound/soc/s3c24xx/jive_wm8750.c
- *
- * Copyright 2007,2008 Simtec Electronics
- *
- * Based on sound/soc/pxa/spitz.c
- * Copyright 2005 Wolfson Microelectronics PLC.
- * Copyright 2005 Openedhand Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-#include <asm/mach-types.h>
-
-#include "dma.h"
-#include "s3c2412-i2s.h"
-
-#include "../codecs/wm8750.h"
-
-static const struct snd_soc_dapm_route audio_map[] = {
- { "Headphone Jack", NULL, "LOUT1" },
- { "Headphone Jack", NULL, "ROUT1" },
- { "Internal Speaker", NULL, "LOUT2" },
- { "Internal Speaker", NULL, "ROUT2" },
- { "LINPUT1", NULL, "Line Input" },
- { "RINPUT1", NULL, "Line Input" },
-};
-
-static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
- SND_SOC_DAPM_HP("Headphone Jack", NULL),
- SND_SOC_DAPM_SPK("Internal Speaker", NULL),
- SND_SOC_DAPM_LINE("Line In", NULL),
-};
-
-static int jive_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- struct s3c_i2sv2_rate_calc div;
- unsigned int clk = 0;
- int ret = 0;
-
- switch (params_rate(params)) {
- case 8000:
- case 16000:
- case 48000:
- case 96000:
- clk = 12288000;
- break;
- case 11025:
- case 22050:
- case 44100:
- clk = 11289600;
- break;
- }
-
- s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
- s3c_i2sv2_get_clock(cpu_dai));
-
- /* set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBS_CFS);
- if (ret < 0)
- return ret;
-
- /* set cpu DAI configuration */
- ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBS_CFS);
- if (ret < 0)
- return ret;
-
- /* set the codec system clock for DAC and ADC */
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
- SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);
- if (ret < 0)
- return ret;
-
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,
- div.clk_div - 1);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static struct snd_soc_ops jive_ops = {
- .hw_params = jive_hw_params,
-};
-
-static int jive_wm8750_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
- int err;
-
- /* These endpoints are not being used. */
- snd_soc_dapm_nc_pin(dapm, "LINPUT2");
- snd_soc_dapm_nc_pin(dapm, "RINPUT2");
- snd_soc_dapm_nc_pin(dapm, "LINPUT3");
- snd_soc_dapm_nc_pin(dapm, "RINPUT3");
- snd_soc_dapm_nc_pin(dapm, "OUT3");
- snd_soc_dapm_nc_pin(dapm, "MONO");
-
- /* Add jive specific widgets */
- err = snd_soc_dapm_new_controls(dapm, wm8750_dapm_widgets,
- ARRAY_SIZE(wm8750_dapm_widgets));
- if (err) {
- printk(KERN_ERR "%s: failed to add widgets (%d)\n",
- __func__, err);
- return err;
- }
-
- snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
- snd_soc_dapm_sync(dapm);
-
- return 0;
-}
-
-static struct snd_soc_dai_link jive_dai = {
- .name = "wm8750",
- .stream_name = "WM8750",
- .cpu_dai_name = "s3c2412-i2s",
- .codec_dai_name = "wm8750-hifi",
- .platform_name = "samsung-audio",
- .codec_name = "wm8750-codec.0-0x1a",
- .init = jive_wm8750_init,
- .ops = &jive_ops,
-};
-
-/* jive audio machine driver */
-static struct snd_soc_card snd_soc_machine_jive = {
- .name = "Jive",
- .dai_link = &jive_dai,
- .num_links = 1,
-};
-
-static struct platform_device *jive_snd_device;
-
-static int __init jive_init(void)
-{
- int ret;
-
- if (!machine_is_jive())
- return 0;
-
- printk("JIVE WM8750 Audio support\n");
-
- jive_snd_device = platform_device_alloc("soc-audio", -1);
- if (!jive_snd_device)
- return -ENOMEM;
-
- platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive);
- ret = platform_device_add(jive_snd_device);
-
- if (ret)
- platform_device_put(jive_snd_device);
-
- return ret;
-}
-
-static void __exit jive_exit(void)
-{
- platform_device_unregister(jive_snd_device);
-}
-
-module_init(jive_init);
-module_exit(jive_exit);
-
-MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("ALSA SoC Jive Audio support");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * lm4857.h -- ALSA Soc Audio Layer
- *
- * Copyright 2007 Wolfson Microelectronics PLC.
- * Author: Graeme Gregory
- * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * Revision history
- * 18th Jun 2007 Initial version.
- */
-
-#ifndef LM4857_H_
-#define LM4857_H_
-
-/* The register offsets in the cache array */
-#define LM4857_MVOL 0
-#define LM4857_LVOL 1
-#define LM4857_RVOL 2
-#define LM4857_CTRL 3
-
-/* the shifts required to set these bits */
-#define LM4857_3D 5
-#define LM4857_WAKEUP 5
-#define LM4857_EPGAIN 4
-
-#endif /*LM4857_H_*/
-
+++ /dev/null
-/*
- * SoC audio for ln2440sbc
- *
- * Copyright 2007 KonekTel, a.s.
- * Author: Ivan Kuten
- * ivan.kuten@promwad.com
- *
- * Heavily based on smdk2443_wm9710.c
- * Copyright 2007 Wolfson Microelectronics PLC.
- * Author: Graeme Gregory
- * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include <linux/module.h>
-#include <linux/device.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-#include "dma.h"
-#include "ac97.h"
-
-static struct snd_soc_card ln2440sbc;
-
-static struct snd_soc_dai_link ln2440sbc_dai[] = {
-{
- .name = "AC97",
- .stream_name = "AC97 HiFi",
- .cpu_dai_name = "samsung-ac97",
- .codec_dai_name = "ac97-hifi",
- .codec_name = "ac97-codec",
- .platform_name = "samsung-audio",
-},
-};
-
-static struct snd_soc_card ln2440sbc = {
- .name = "LN2440SBC",
- .dai_link = ln2440sbc_dai,
- .num_links = ARRAY_SIZE(ln2440sbc_dai),
-};
-
-static struct platform_device *ln2440sbc_snd_ac97_device;
-
-static int __init ln2440sbc_init(void)
-{
- int ret;
-
- ln2440sbc_snd_ac97_device = platform_device_alloc("soc-audio", -1);
- if (!ln2440sbc_snd_ac97_device)
- return -ENOMEM;
-
- platform_set_drvdata(ln2440sbc_snd_ac97_device, &ln2440sbc);
- ret = platform_device_add(ln2440sbc_snd_ac97_device);
-
- if (ret)
- platform_device_put(ln2440sbc_snd_ac97_device);
-
- return ret;
-}
-
-static void __exit ln2440sbc_exit(void)
-{
- platform_device_unregister(ln2440sbc_snd_ac97_device);
-}
-
-module_init(ln2440sbc_init);
-module_exit(ln2440sbc_exit);
-
-/* Module information */
-MODULE_AUTHOR("Ivan Kuten");
-MODULE_DESCRIPTION("ALSA SoC ALC650 LN2440SBC");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * neo1973_gta02_wm8753.c -- SoC audio for Openmoko Freerunner(GTA02)
- *
- * Copyright 2007 Openmoko Inc
- * Author: Graeme Gregory <graeme@openmoko.org>
- * Copyright 2007 Wolfson Microelectronics PLC.
- * Author: Graeme Gregory <linux@wolfsonmicro.com>
- * Copyright 2009 Wolfson Microelectronics
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-#include <asm/mach-types.h>
-
-#include <plat/regs-iis.h>
-
-#include <mach/regs-clock.h>
-#include <asm/io.h>
-#include <mach/gta02.h>
-#include "../codecs/wm8753.h"
-#include "dma.h"
-#include "s3c24xx-i2s.h"
-
-static struct snd_soc_card neo1973_gta02;
-
-static int neo1973_gta02_hifi_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- unsigned int pll_out = 0, bclk = 0;
- int ret = 0;
- unsigned long iis_clkrate;
-
- iis_clkrate = s3c24xx_i2s_get_clockrate();
-
- switch (params_rate(params)) {
- case 8000:
- case 16000:
- pll_out = 12288000;
- break;
- case 48000:
- bclk = WM8753_BCLK_DIV_4;
- pll_out = 12288000;
- break;
- case 96000:
- bclk = WM8753_BCLK_DIV_2;
- pll_out = 12288000;
- break;
- case 11025:
- bclk = WM8753_BCLK_DIV_16;
- pll_out = 11289600;
- break;
- case 22050:
- bclk = WM8753_BCLK_DIV_8;
- pll_out = 11289600;
- break;
- case 44100:
- bclk = WM8753_BCLK_DIV_4;
- pll_out = 11289600;
- break;
- case 88200:
- bclk = WM8753_BCLK_DIV_2;
- pll_out = 11289600;
- break;
- }
-
- /* set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai,
- SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- /* set cpu DAI configuration */
- ret = snd_soc_dai_set_fmt(cpu_dai,
- SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- /* set the codec system clock for DAC and ADC */
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
- SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- /* set MCLK division for sample rate */
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
- S3C2410_IISMOD_32FS);
- if (ret < 0)
- return ret;
-
- /* set codec BCLK division for sample rate */
- ret = snd_soc_dai_set_clkdiv(codec_dai,
- WM8753_BCLKDIV, bclk);
- if (ret < 0)
- return ret;
-
- /* set prescaler division for sample rate */
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
- S3C24XX_PRESCALE(4, 4));
- if (ret < 0)
- return ret;
-
- /* codec PLL input is PCLK/4 */
- ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
- iis_clkrate / 4, pll_out);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int neo1973_gta02_hifi_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
-
- /* disable the PLL */
- return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
-}
-
-/*
- * Neo1973 WM8753 HiFi DAI opserations.
- */
-static struct snd_soc_ops neo1973_gta02_hifi_ops = {
- .hw_params = neo1973_gta02_hifi_hw_params,
- .hw_free = neo1973_gta02_hifi_hw_free,
-};
-
-static int neo1973_gta02_voice_hw_params(
- struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- unsigned int pcmdiv = 0;
- int ret = 0;
- unsigned long iis_clkrate;
-
- iis_clkrate = s3c24xx_i2s_get_clockrate();
-
- if (params_rate(params) != 8000)
- return -EINVAL;
- if (params_channels(params) != 1)
- return -EINVAL;
-
- pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
-
- /* todo: gg check mode (DSP_B) against CSR datasheet */
- /* set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
- SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
- if (ret < 0)
- return ret;
-
- /* set the codec system clock for DAC and ADC */
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK,
- 12288000, SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- /* set codec PCM division for sample rate */
- ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV,
- pcmdiv);
- if (ret < 0)
- return ret;
-
- /* configure and enable PLL for 12.288MHz output */
- ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
- iis_clkrate / 4, 12288000);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int neo1973_gta02_voice_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
-
- /* disable the PLL */
- return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
-}
-
-static struct snd_soc_ops neo1973_gta02_voice_ops = {
- .hw_params = neo1973_gta02_voice_hw_params,
- .hw_free = neo1973_gta02_voice_hw_free,
-};
-
-#define LM4853_AMP 1
-#define LM4853_SPK 2
-
-static u8 lm4853_state;
-
-/* This has no effect, it exists only to maintain compatibility with
- * existing ALSA state files.
- */
-static int lm4853_set_state(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- int val = ucontrol->value.integer.value[0];
-
- if (val)
- lm4853_state |= LM4853_AMP;
- else
- lm4853_state &= ~LM4853_AMP;
-
- return 0;
-}
-
-static int lm4853_get_state(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- ucontrol->value.integer.value[0] = lm4853_state & LM4853_AMP;
-
- return 0;
-}
-
-static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- int val = ucontrol->value.integer.value[0];
-
- if (val) {
- lm4853_state |= LM4853_SPK;
- gpio_set_value(GTA02_GPIO_HP_IN, 0);
- } else {
- lm4853_state &= ~LM4853_SPK;
- gpio_set_value(GTA02_GPIO_HP_IN, 1);
- }
-
- return 0;
-}
-
-static int lm4853_get_spk(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- ucontrol->value.integer.value[0] = (lm4853_state & LM4853_SPK) >> 1;
-
- return 0;
-}
-
-static int lm4853_event(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *k,
- int event)
-{
- gpio_set_value(GTA02_GPIO_AMP_SHUT, SND_SOC_DAPM_EVENT_OFF(event));
-
- return 0;
-}
-
-static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
- SND_SOC_DAPM_SPK("Stereo Out", lm4853_event),
- SND_SOC_DAPM_LINE("GSM Line Out", NULL),
- SND_SOC_DAPM_LINE("GSM Line In", NULL),
- SND_SOC_DAPM_MIC("Headset Mic", NULL),
- SND_SOC_DAPM_MIC("Handset Mic", NULL),
- SND_SOC_DAPM_SPK("Handset Spk", NULL),
-};
-
-
-/* example machine audio_mapnections */
-static const struct snd_soc_dapm_route audio_map[] = {
-
- /* Connections to the lm4853 amp */
- {"Stereo Out", NULL, "LOUT1"},
- {"Stereo Out", NULL, "ROUT1"},
-
- /* Connections to the GSM Module */
- {"GSM Line Out", NULL, "MONO1"},
- {"GSM Line Out", NULL, "MONO2"},
- {"RXP", NULL, "GSM Line In"},
- {"RXN", NULL, "GSM Line In"},
-
- /* Connections to Headset */
- {"MIC1", NULL, "Mic Bias"},
- {"Mic Bias", NULL, "Headset Mic"},
-
- /* Call Mic */
- {"MIC2", NULL, "Mic Bias"},
- {"MIC2N", NULL, "Mic Bias"},
- {"Mic Bias", NULL, "Handset Mic"},
-
- /* Call Speaker */
- {"Handset Spk", NULL, "LOUT2"},
- {"Handset Spk", NULL, "ROUT2"},
-
- /* Connect the ALC pins */
- {"ACIN", NULL, "ACOP"},
-};
-
-static const struct snd_kcontrol_new wm8753_neo1973_gta02_controls[] = {
- SOC_DAPM_PIN_SWITCH("Stereo Out"),
- SOC_DAPM_PIN_SWITCH("GSM Line Out"),
- SOC_DAPM_PIN_SWITCH("GSM Line In"),
- SOC_DAPM_PIN_SWITCH("Headset Mic"),
- SOC_DAPM_PIN_SWITCH("Handset Mic"),
- SOC_DAPM_PIN_SWITCH("Handset Spk"),
-
- /* This has no effect, it exists only to maintain compatibility with
- * existing ALSA state files.
- */
- SOC_SINGLE_EXT("Amp State Switch", 6, 0, 1, 0,
- lm4853_get_state,
- lm4853_set_state),
- SOC_SINGLE_EXT("Amp Spk Switch", 7, 0, 1, 0,
- lm4853_get_spk,
- lm4853_set_spk),
-};
-
-/*
- * This is an example machine initialisation for a wm8753 connected to a
- * neo1973 GTA02.
- */
-static int neo1973_gta02_wm8753_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
- int err;
-
- /* set up NC codec pins */
- snd_soc_dapm_nc_pin(dapm, "OUT3");
- snd_soc_dapm_nc_pin(dapm, "OUT4");
- snd_soc_dapm_nc_pin(dapm, "LINE1");
- snd_soc_dapm_nc_pin(dapm, "LINE2");
-
- /* Add neo1973 gta02 specific widgets */
- snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets,
- ARRAY_SIZE(wm8753_dapm_widgets));
-
- /* add neo1973 gta02 specific controls */
- err = snd_soc_add_controls(codec, wm8753_neo1973_gta02_controls,
- ARRAY_SIZE(wm8753_neo1973_gta02_controls));
-
- if (err < 0)
- return err;
-
- /* set up neo1973 gta02 specific audio path audio_map */
- snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
-
- /* set endpoints to default off mode */
- snd_soc_dapm_disable_pin(dapm, "Stereo Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line In");
- snd_soc_dapm_disable_pin(dapm, "Headset Mic");
- snd_soc_dapm_disable_pin(dapm, "Handset Mic");
- snd_soc_dapm_disable_pin(dapm, "Handset Spk");
-
- /* allow audio paths from the GSM modem to run during suspend */
- snd_soc_dapm_ignore_suspend(dapm, "Stereo Out");
- snd_soc_dapm_ignore_suspend(dapm, "GSM Line Out");
- snd_soc_dapm_ignore_suspend(dapm, "GSM Line In");
- snd_soc_dapm_ignore_suspend(dapm, "Headset Mic");
- snd_soc_dapm_ignore_suspend(dapm, "Handset Mic");
- snd_soc_dapm_ignore_suspend(dapm, "Handset Spk");
-
- snd_soc_dapm_sync(dapm);
-
- return 0;
-}
-
-/*
- * BT Codec DAI
- */
-static struct snd_soc_dai_driver bt_dai = {
- .name = "bluetooth-dai",
- .playback = {
- .channels_min = 1,
- .channels_max = 1,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
- .capture = {
- .channels_min = 1,
- .channels_max = 1,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
-};
-
-static struct snd_soc_dai_link neo1973_gta02_dai[] = {
-{ /* Hifi Playback - for similatious use with voice below */
- .name = "WM8753",
- .stream_name = "WM8753 HiFi",
- .cpu_dai_name = "s3c24xx-i2s",
- .codec_dai_name = "wm8753-hifi",
- .init = neo1973_gta02_wm8753_init,
- .platform_name = "samsung-audio",
- .codec_name = "wm8753-codec.0-0x1a",
- .ops = &neo1973_gta02_hifi_ops,
-},
-{ /* Voice via BT */
- .name = "Bluetooth",
- .stream_name = "Voice",
- .cpu_dai_name = "bluetooth-dai",
- .codec_dai_name = "wm8753-voice",
- .ops = &neo1973_gta02_voice_ops,
- .codec_name = "wm8753-codec.0-0x1a",
- .platform_name = "samsung-audio",
-},
-};
-
-static struct snd_soc_card neo1973_gta02 = {
- .name = "neo1973-gta02",
- .dai_link = neo1973_gta02_dai,
- .num_links = ARRAY_SIZE(neo1973_gta02_dai),
-};
-
-static struct platform_device *neo1973_gta02_snd_device;
-
-static int __init neo1973_gta02_init(void)
-{
- int ret;
-
- if (!machine_is_neo1973_gta02()) {
- printk(KERN_INFO
- "Only GTA02 is supported by this ASoC driver\n");
- return -ENODEV;
- }
-
- neo1973_gta02_snd_device = platform_device_alloc("soc-audio", -1);
- if (!neo1973_gta02_snd_device)
- return -ENOMEM;
-
- /* register bluetooth DAI here */
- ret = snd_soc_register_dai(&neo1973_gta02_snd_device->dev, -1, &bt_dai);
- if (ret) {
- platform_device_put(neo1973_gta02_snd_device);
- return ret;
- }
-
- platform_set_drvdata(neo1973_gta02_snd_device, &neo1973_gta02);
- ret = platform_device_add(neo1973_gta02_snd_device);
-
- if (ret) {
- platform_device_put(neo1973_gta02_snd_device);
- return ret;
- }
-
- /* Initialise GPIOs used by amp */
- ret = gpio_request(GTA02_GPIO_HP_IN, "GTA02_HP_IN");
- if (ret) {
- pr_err("gta02_wm8753: Failed to register GPIO %d\n", GTA02_GPIO_HP_IN);
- goto err_unregister_device;
- }
-
- ret = gpio_direction_output(GTA02_GPIO_HP_IN, 1);
- if (ret) {
- pr_err("gta02_wm8753: Failed to configure GPIO %d\n", GTA02_GPIO_HP_IN);
- goto err_free_gpio_hp_in;
- }
-
- ret = gpio_request(GTA02_GPIO_AMP_SHUT, "GTA02_AMP_SHUT");
- if (ret) {
- pr_err("gta02_wm8753: Failed to register GPIO %d\n", GTA02_GPIO_AMP_SHUT);
- goto err_free_gpio_hp_in;
- }
-
- ret = gpio_direction_output(GTA02_GPIO_AMP_SHUT, 1);
- if (ret) {
- pr_err("gta02_wm8753: Failed to configure GPIO %d\n", GTA02_GPIO_AMP_SHUT);
- goto err_free_gpio_amp_shut;
- }
-
- return 0;
-
-err_free_gpio_amp_shut:
- gpio_free(GTA02_GPIO_AMP_SHUT);
-err_free_gpio_hp_in:
- gpio_free(GTA02_GPIO_HP_IN);
-err_unregister_device:
- platform_device_unregister(neo1973_gta02_snd_device);
- return ret;
-}
-module_init(neo1973_gta02_init);
-
-static void __exit neo1973_gta02_exit(void)
-{
- snd_soc_unregister_dai(&neo1973_gta02_snd_device->dev, -1);
- platform_device_unregister(neo1973_gta02_snd_device);
- gpio_free(GTA02_GPIO_HP_IN);
- gpio_free(GTA02_GPIO_AMP_SHUT);
-}
-module_exit(neo1973_gta02_exit);
-
-/* Module information */
-MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org");
-MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 GTA02");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * neo1973_wm8753.c -- SoC audio for Neo1973
- *
- * Copyright 2007 Wolfson Microelectronics PLC.
- * Author: Graeme Gregory
- * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/i2c.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-#include <sound/tlv.h>
-
-#include <asm/mach-types.h>
-#include <asm/hardware/scoop.h>
-#include <mach/regs-clock.h>
-#include <mach/regs-gpio.h>
-#include <mach/hardware.h>
-#include <linux/io.h>
-#include <mach/spi-gpio.h>
-
-#include <plat/regs-iis.h>
-
-#include "../codecs/wm8753.h"
-#include "lm4857.h"
-#include "dma.h"
-#include "s3c24xx-i2s.h"
-
-/* define the scenarios */
-#define NEO_AUDIO_OFF 0
-#define NEO_GSM_CALL_AUDIO_HANDSET 1
-#define NEO_GSM_CALL_AUDIO_HEADSET 2
-#define NEO_GSM_CALL_AUDIO_BLUETOOTH 3
-#define NEO_STEREO_TO_SPEAKERS 4
-#define NEO_STEREO_TO_HEADPHONES 5
-#define NEO_CAPTURE_HANDSET 6
-#define NEO_CAPTURE_HEADSET 7
-#define NEO_CAPTURE_BLUETOOTH 8
-
-static struct snd_soc_card neo1973;
-static struct i2c_client *i2c;
-
-static int neo1973_hifi_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- unsigned int pll_out = 0, bclk = 0;
- int ret = 0;
- unsigned long iis_clkrate;
-
- pr_debug("Entered %s\n", __func__);
-
- iis_clkrate = s3c24xx_i2s_get_clockrate();
-
- switch (params_rate(params)) {
- case 8000:
- case 16000:
- pll_out = 12288000;
- break;
- case 48000:
- bclk = WM8753_BCLK_DIV_4;
- pll_out = 12288000;
- break;
- case 96000:
- bclk = WM8753_BCLK_DIV_2;
- pll_out = 12288000;
- break;
- case 11025:
- bclk = WM8753_BCLK_DIV_16;
- pll_out = 11289600;
- break;
- case 22050:
- bclk = WM8753_BCLK_DIV_8;
- pll_out = 11289600;
- break;
- case 44100:
- bclk = WM8753_BCLK_DIV_4;
- pll_out = 11289600;
- break;
- case 88200:
- bclk = WM8753_BCLK_DIV_2;
- pll_out = 11289600;
- break;
- }
-
- /* set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai,
- SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- /* set cpu DAI configuration */
- ret = snd_soc_dai_set_fmt(cpu_dai,
- SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- /* set the codec system clock for DAC and ADC */
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
- SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- /* set MCLK division for sample rate */
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
- S3C2410_IISMOD_32FS);
- if (ret < 0)
- return ret;
-
- /* set codec BCLK division for sample rate */
- ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk);
- if (ret < 0)
- return ret;
-
- /* set prescaler division for sample rate */
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
- S3C24XX_PRESCALE(4, 4));
- if (ret < 0)
- return ret;
-
- /* codec PLL input is PCLK/4 */
- ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
- iis_clkrate / 4, pll_out);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
-
- pr_debug("Entered %s\n", __func__);
-
- /* disable the PLL */
- return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
-}
-
-/*
- * Neo1973 WM8753 HiFi DAI opserations.
- */
-static struct snd_soc_ops neo1973_hifi_ops = {
- .hw_params = neo1973_hifi_hw_params,
- .hw_free = neo1973_hifi_hw_free,
-};
-
-static int neo1973_voice_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- unsigned int pcmdiv = 0;
- int ret = 0;
- unsigned long iis_clkrate;
-
- pr_debug("Entered %s\n", __func__);
-
- iis_clkrate = s3c24xx_i2s_get_clockrate();
-
- if (params_rate(params) != 8000)
- return -EINVAL;
- if (params_channels(params) != 1)
- return -EINVAL;
-
- pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
-
- /* todo: gg check mode (DSP_B) against CSR datasheet */
- /* set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
- SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
- if (ret < 0)
- return ret;
-
- /* set the codec system clock for DAC and ADC */
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK, 12288000,
- SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- /* set codec PCM division for sample rate */
- ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv);
- if (ret < 0)
- return ret;
-
- /* configure and enable PLL for 12.288MHz output */
- ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
- iis_clkrate / 4, 12288000);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int neo1973_voice_hw_free(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
-
- pr_debug("Entered %s\n", __func__);
-
- /* disable the PLL */
- return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
-}
-
-static struct snd_soc_ops neo1973_voice_ops = {
- .hw_params = neo1973_voice_hw_params,
- .hw_free = neo1973_voice_hw_free,
-};
-
-static int neo1973_scenario;
-
-static int neo1973_get_scenario(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- ucontrol->value.integer.value[0] = neo1973_scenario;
- return 0;
-}
-
-static int set_scenario_endpoints(struct snd_soc_codec *codec, int scenario)
-{
- struct snd_soc_dapm_context *dapm = &codec->dapm;
-
- pr_debug("Entered %s\n", __func__);
-
- switch (neo1973_scenario) {
- case NEO_AUDIO_OFF:
- snd_soc_dapm_disable_pin(dapm, "Audio Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line In");
- snd_soc_dapm_disable_pin(dapm, "Headset Mic");
- snd_soc_dapm_disable_pin(dapm, "Call Mic");
- break;
- case NEO_GSM_CALL_AUDIO_HANDSET:
- snd_soc_dapm_enable_pin(dapm, "Audio Out");
- snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
- snd_soc_dapm_enable_pin(dapm, "GSM Line In");
- snd_soc_dapm_disable_pin(dapm, "Headset Mic");
- snd_soc_dapm_enable_pin(dapm, "Call Mic");
- break;
- case NEO_GSM_CALL_AUDIO_HEADSET:
- snd_soc_dapm_enable_pin(dapm, "Audio Out");
- snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
- snd_soc_dapm_enable_pin(dapm, "GSM Line In");
- snd_soc_dapm_enable_pin(dapm, "Headset Mic");
- snd_soc_dapm_disable_pin(dapm, "Call Mic");
- break;
- case NEO_GSM_CALL_AUDIO_BLUETOOTH:
- snd_soc_dapm_disable_pin(dapm, "Audio Out");
- snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
- snd_soc_dapm_enable_pin(dapm, "GSM Line In");
- snd_soc_dapm_disable_pin(dapm, "Headset Mic");
- snd_soc_dapm_disable_pin(dapm, "Call Mic");
- break;
- case NEO_STEREO_TO_SPEAKERS:
- snd_soc_dapm_enable_pin(dapm, "Audio Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line In");
- snd_soc_dapm_disable_pin(dapm, "Headset Mic");
- snd_soc_dapm_disable_pin(dapm, "Call Mic");
- break;
- case NEO_STEREO_TO_HEADPHONES:
- snd_soc_dapm_enable_pin(dapm, "Audio Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line In");
- snd_soc_dapm_disable_pin(dapm, "Headset Mic");
- snd_soc_dapm_disable_pin(dapm, "Call Mic");
- break;
- case NEO_CAPTURE_HANDSET:
- snd_soc_dapm_disable_pin(dapm, "Audio Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line In");
- snd_soc_dapm_disable_pin(dapm, "Headset Mic");
- snd_soc_dapm_enable_pin(dapm, "Call Mic");
- break;
- case NEO_CAPTURE_HEADSET:
- snd_soc_dapm_disable_pin(dapm, "Audio Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line In");
- snd_soc_dapm_enable_pin(dapm, "Headset Mic");
- snd_soc_dapm_disable_pin(dapm, "Call Mic");
- break;
- case NEO_CAPTURE_BLUETOOTH:
- snd_soc_dapm_disable_pin(dapm, "Audio Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line In");
- snd_soc_dapm_disable_pin(dapm, "Headset Mic");
- snd_soc_dapm_disable_pin(dapm, "Call Mic");
- break;
- default:
- snd_soc_dapm_disable_pin(dapm, "Audio Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
- snd_soc_dapm_disable_pin(dapm, "GSM Line In");
- snd_soc_dapm_disable_pin(dapm, "Headset Mic");
- snd_soc_dapm_disable_pin(dapm, "Call Mic");
- }
-
- snd_soc_dapm_sync(dapm);
-
- return 0;
-}
-
-static int neo1973_set_scenario(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
-
- pr_debug("Entered %s\n", __func__);
-
- if (neo1973_scenario == ucontrol->value.integer.value[0])
- return 0;
-
- neo1973_scenario = ucontrol->value.integer.value[0];
- set_scenario_endpoints(codec, neo1973_scenario);
- return 1;
-}
-
-static u8 lm4857_regs[4] = {0x00, 0x40, 0x80, 0xC0};
-
-static void lm4857_write_regs(void)
-{
- pr_debug("Entered %s\n", __func__);
-
- if (i2c_master_send(i2c, lm4857_regs, 4) != 4)
- printk(KERN_ERR "lm4857: i2c write failed\n");
-}
-
-static int lm4857_get_reg(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct soc_mixer_control *mc =
- (struct soc_mixer_control *)kcontrol->private_value;
- int reg = mc->reg;
- int shift = mc->shift;
- int mask = mc->max;
-
- pr_debug("Entered %s\n", __func__);
-
- ucontrol->value.integer.value[0] = (lm4857_regs[reg] >> shift) & mask;
- return 0;
-}
-
-static int lm4857_set_reg(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct soc_mixer_control *mc =
- (struct soc_mixer_control *)kcontrol->private_value;
- int reg = mc->reg;
- int shift = mc->shift;
- int mask = mc->max;
-
- if (((lm4857_regs[reg] >> shift) & mask) ==
- ucontrol->value.integer.value[0])
- return 0;
-
- lm4857_regs[reg] &= ~(mask << shift);
- lm4857_regs[reg] |= ucontrol->value.integer.value[0] << shift;
- lm4857_write_regs();
- return 1;
-}
-
-static int lm4857_get_mode(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- u8 value = lm4857_regs[LM4857_CTRL] & 0x0F;
-
- pr_debug("Entered %s\n", __func__);
-
- if (value)
- value -= 5;
-
- ucontrol->value.integer.value[0] = value;
- return 0;
-}
-
-static int lm4857_set_mode(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- u8 value = ucontrol->value.integer.value[0];
-
- pr_debug("Entered %s\n", __func__);
-
- if (value)
- value += 5;
-
- if ((lm4857_regs[LM4857_CTRL] & 0x0F) == value)
- return 0;
-
- lm4857_regs[LM4857_CTRL] &= 0xF0;
- lm4857_regs[LM4857_CTRL] |= value;
- lm4857_write_regs();
- return 1;
-}
-
-static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
- SND_SOC_DAPM_LINE("Audio Out", NULL),
- SND_SOC_DAPM_LINE("GSM Line Out", NULL),
- SND_SOC_DAPM_LINE("GSM Line In", NULL),
- SND_SOC_DAPM_MIC("Headset Mic", NULL),
- SND_SOC_DAPM_MIC("Call Mic", NULL),
-};
-
-
-static const struct snd_soc_dapm_route dapm_routes[] = {
-
- /* Connections to the lm4857 amp */
- {"Audio Out", NULL, "LOUT1"},
- {"Audio Out", NULL, "ROUT1"},
-
- /* Connections to the GSM Module */
- {"GSM Line Out", NULL, "MONO1"},
- {"GSM Line Out", NULL, "MONO2"},
- {"RXP", NULL, "GSM Line In"},
- {"RXN", NULL, "GSM Line In"},
-
- /* Connections to Headset */
- {"MIC1", NULL, "Mic Bias"},
- {"Mic Bias", NULL, "Headset Mic"},
-
- /* Call Mic */
- {"MIC2", NULL, "Mic Bias"},
- {"MIC2N", NULL, "Mic Bias"},
- {"Mic Bias", NULL, "Call Mic"},
-
- /* Connect the ALC pins */
- {"ACIN", NULL, "ACOP"},
-};
-
-static const char *lm4857_mode[] = {
- "Off",
- "Call Speaker",
- "Stereo Speakers",
- "Stereo Speakers + Headphones",
- "Headphones"
-};
-
-static const struct soc_enum lm4857_mode_enum[] = {
- SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(lm4857_mode), lm4857_mode),
-};
-
-static const char *neo_scenarios[] = {
- "Off",
- "GSM Handset",
- "GSM Headset",
- "GSM Bluetooth",
- "Speakers",
- "Headphones",
- "Capture Handset",
- "Capture Headset",
- "Capture Bluetooth"
-};
-
-static const struct soc_enum neo_scenario_enum[] = {
- SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(neo_scenarios), neo_scenarios),
-};
-
-static const DECLARE_TLV_DB_SCALE(stereo_tlv, -4050, 150, 0);
-static const DECLARE_TLV_DB_SCALE(mono_tlv, -3450, 150, 0);
-
-static const struct snd_kcontrol_new wm8753_neo1973_controls[] = {
- SOC_SINGLE_EXT_TLV("Amp Left Playback Volume", LM4857_LVOL, 0, 31, 0,
- lm4857_get_reg, lm4857_set_reg, stereo_tlv),
- SOC_SINGLE_EXT_TLV("Amp Right Playback Volume", LM4857_RVOL, 0, 31, 0,
- lm4857_get_reg, lm4857_set_reg, stereo_tlv),
- SOC_SINGLE_EXT_TLV("Amp Mono Playback Volume", LM4857_MVOL, 0, 31, 0,
- lm4857_get_reg, lm4857_set_reg, mono_tlv),
- SOC_ENUM_EXT("Amp Mode", lm4857_mode_enum[0],
- lm4857_get_mode, lm4857_set_mode),
- SOC_ENUM_EXT("Neo Mode", neo_scenario_enum[0],
- neo1973_get_scenario, neo1973_set_scenario),
- SOC_SINGLE_EXT("Amp Spk 3D Playback Switch", LM4857_LVOL, 5, 1, 0,
- lm4857_get_reg, lm4857_set_reg),
- SOC_SINGLE_EXT("Amp HP 3d Playback Switch", LM4857_RVOL, 5, 1, 0,
- lm4857_get_reg, lm4857_set_reg),
- SOC_SINGLE_EXT("Amp Fast Wakeup Playback Switch", LM4857_CTRL, 5, 1, 0,
- lm4857_get_reg, lm4857_set_reg),
- SOC_SINGLE_EXT("Amp Earpiece 6dB Playback Switch", LM4857_CTRL, 4, 1, 0,
- lm4857_get_reg, lm4857_set_reg),
-};
-
-/*
- * This is an example machine initialisation for a wm8753 connected to a
- * neo1973 II. It is missing logic to detect hp/mic insertions and logic
- * to re-route the audio in such an event.
- */
-static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
- int err;
-
- pr_debug("Entered %s\n", __func__);
-
- /* set up NC codec pins */
- snd_soc_dapm_nc_pin(dapm, "LOUT2");
- snd_soc_dapm_nc_pin(dapm, "ROUT2");
- snd_soc_dapm_nc_pin(dapm, "OUT3");
- snd_soc_dapm_nc_pin(dapm, "OUT4");
- snd_soc_dapm_nc_pin(dapm, "LINE1");
- snd_soc_dapm_nc_pin(dapm, "LINE2");
-
- /* Add neo1973 specific widgets */
- snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets,
- ARRAY_SIZE(wm8753_dapm_widgets));
-
- /* set endpoints to default mode */
- set_scenario_endpoints(codec, NEO_AUDIO_OFF);
-
- /* add neo1973 specific controls */
- err = snd_soc_add_controls(codec, wm8753_neo1973_controls,
- ARRAY_SIZE(8753_neo1973_controls));
- if (err < 0)
- return err;
-
- /* set up neo1973 specific audio routes */
- err = snd_soc_dapm_add_routes(dapm, dapm_routes,
- ARRAY_SIZE(dapm_routes));
-
- snd_soc_dapm_sync(dapm);
- return 0;
-}
-
-/*
- * BT Codec DAI
- */
-static struct snd_soc_dai bt_dai = {
- .name = "bluetooth-dai",
- .playback = {
- .channels_min = 1,
- .channels_max = 1,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
- .capture = {
- .channels_min = 1,
- .channels_max = 1,
- .rates = SNDRV_PCM_RATE_8000,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,},
-};
-
-static struct snd_soc_dai_link neo1973_dai[] = {
-{ /* Hifi Playback - for similatious use with voice below */
- .name = "WM8753",
- .stream_name = "WM8753 HiFi",
- .platform_name = "samsung-audio",
- .cpu_dai_name = "s3c24xx-i2s",
- .codec_dai_name = "wm8753-hifi",
- .codec_name = "wm8753-codec.0-0x1a",
- .init = neo1973_wm8753_init,
- .ops = &neo1973_hifi_ops,
-},
-{ /* Voice via BT */
- .name = "Bluetooth",
- .stream_name = "Voice",
- .platform_name = "samsung-audio",
- .cpu_dai_name = "bluetooth-dai",
- .codec_dai_name = "wm8753-voice",
- .codec_name = "wm8753-codec.0-0x1a",
- .ops = &neo1973_voice_ops,
-},
-};
-
-static struct snd_soc_card neo1973 = {
- .name = "neo1973",
- .dai_link = neo1973_dai,
- .num_links = ARRAY_SIZE(neo1973_dai),
-};
-
-static int lm4857_i2c_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- pr_debug("Entered %s\n", __func__);
-
- i2c = client;
-
- lm4857_write_regs();
- return 0;
-}
-
-static int lm4857_i2c_remove(struct i2c_client *client)
-{
- pr_debug("Entered %s\n", __func__);
-
- i2c = NULL;
-
- return 0;
-}
-
-static u8 lm4857_state;
-
-static int lm4857_suspend(struct i2c_client *dev, pm_message_t state)
-{
- pr_debug("Entered %s\n", __func__);
-
- dev_dbg(&dev->dev, "lm4857_suspend\n");
- lm4857_state = lm4857_regs[LM4857_CTRL] & 0xf;
- if (lm4857_state) {
- lm4857_regs[LM4857_CTRL] &= 0xf0;
- lm4857_write_regs();
- }
- return 0;
-}
-
-static int lm4857_resume(struct i2c_client *dev)
-{
- pr_debug("Entered %s\n", __func__);
-
- if (lm4857_state) {
- lm4857_regs[LM4857_CTRL] |= (lm4857_state & 0x0f);
- lm4857_write_regs();
- }
- return 0;
-}
-
-static void lm4857_shutdown(struct i2c_client *dev)
-{
- pr_debug("Entered %s\n", __func__);
-
- dev_dbg(&dev->dev, "lm4857_shutdown\n");
- lm4857_regs[LM4857_CTRL] &= 0xf0;
- lm4857_write_regs();
-}
-
-static const struct i2c_device_id lm4857_i2c_id[] = {
- { "neo1973_lm4857", 0 },
- { }
-};
-
-static struct i2c_driver lm4857_i2c_driver = {
- .driver = {
- .name = "LM4857 I2C Amp",
- .owner = THIS_MODULE,
- },
- .suspend = lm4857_suspend,
- .resume = lm4857_resume,
- .shutdown = lm4857_shutdown,
- .probe = lm4857_i2c_probe,
- .remove = lm4857_i2c_remove,
- .id_table = lm4857_i2c_id,
-};
-
-static struct platform_device *neo1973_snd_device;
-
-static int __init neo1973_init(void)
-{
- int ret;
-
- pr_debug("Entered %s\n", __func__);
-
- if (!machine_is_neo1973_gta01()) {
- printk(KERN_INFO
- "Only GTA01 hardware supported by ASoC driver\n");
- return -ENODEV;
- }
-
- neo1973_snd_device = platform_device_alloc("soc-audio", -1);
- if (!neo1973_snd_device)
- return -ENOMEM;
-
- platform_set_drvdata(neo1973_snd_device, &neo1973);
- ret = platform_device_add(neo1973_snd_device);
-
- if (ret) {
- platform_device_put(neo1973_snd_device);
- return ret;
- }
-
- ret = i2c_add_driver(&lm4857_i2c_driver);
-
- if (ret != 0)
- platform_device_unregister(neo1973_snd_device);
-
- return ret;
-}
-
-static void __exit neo1973_exit(void)
-{
- pr_debug("Entered %s\n", __func__);
-
- i2c_del_driver(&lm4857_i2c_driver);
- platform_device_unregister(neo1973_snd_device);
-}
-
-module_init(neo1973_init);
-module_exit(neo1973_exit);
-
-/* Module information */
-MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
-MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* sound/soc/s3c24xx/pcm.c
- *
- * ALSA SoC Audio Layer - S3C PCM-Controller driver
- *
- * Copyright (c) 2009 Samsung Electronics Co. Ltd
- * Author: Jaswinder Singh <jassi.brar@samsung.com>
- * based upon I2S drivers by Ben Dooks.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/clk.h>
-#include <linux/kernel.h>
-#include <linux/gpio.h>
-#include <linux/io.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/initval.h>
-#include <sound/soc.h>
-
-#include <plat/audio.h>
-#include <plat/dma.h>
-
-#include "dma.h"
-#include "pcm.h"
-
-static struct s3c2410_dma_client s3c_pcm_dma_client_out = {
- .name = "PCM Stereo out"
-};
-
-static struct s3c2410_dma_client s3c_pcm_dma_client_in = {
- .name = "PCM Stereo in"
-};
-
-static struct s3c_dma_params s3c_pcm_stereo_out[] = {
- [0] = {
- .client = &s3c_pcm_dma_client_out,
- .dma_size = 4,
- },
- [1] = {
- .client = &s3c_pcm_dma_client_out,
- .dma_size = 4,
- },
-};
-
-static struct s3c_dma_params s3c_pcm_stereo_in[] = {
- [0] = {
- .client = &s3c_pcm_dma_client_in,
- .dma_size = 4,
- },
- [1] = {
- .client = &s3c_pcm_dma_client_in,
- .dma_size = 4,
- },
-};
-
-static struct s3c_pcm_info s3c_pcm[2];
-
-static void s3c_pcm_snd_txctrl(struct s3c_pcm_info *pcm, int on)
-{
- void __iomem *regs = pcm->regs;
- u32 ctl, clkctl;
-
- clkctl = readl(regs + S3C_PCM_CLKCTL);
- ctl = readl(regs + S3C_PCM_CTL);
- ctl &= ~(S3C_PCM_CTL_TXDIPSTICK_MASK
- << S3C_PCM_CTL_TXDIPSTICK_SHIFT);
-
- if (on) {
- ctl |= S3C_PCM_CTL_TXDMA_EN;
- ctl |= S3C_PCM_CTL_TXFIFO_EN;
- ctl |= S3C_PCM_CTL_ENABLE;
- ctl |= (0x4<<S3C_PCM_CTL_TXDIPSTICK_SHIFT);
- clkctl |= S3C_PCM_CLKCTL_SERCLK_EN;
- } else {
- ctl &= ~S3C_PCM_CTL_TXDMA_EN;
- ctl &= ~S3C_PCM_CTL_TXFIFO_EN;
-
- if (!(ctl & S3C_PCM_CTL_RXFIFO_EN)) {
- ctl &= ~S3C_PCM_CTL_ENABLE;
- if (!pcm->idleclk)
- clkctl |= S3C_PCM_CLKCTL_SERCLK_EN;
- }
- }
-
- writel(clkctl, regs + S3C_PCM_CLKCTL);
- writel(ctl, regs + S3C_PCM_CTL);
-}
-
-static void s3c_pcm_snd_rxctrl(struct s3c_pcm_info *pcm, int on)
-{
- void __iomem *regs = pcm->regs;
- u32 ctl, clkctl;
-
- ctl = readl(regs + S3C_PCM_CTL);
- clkctl = readl(regs + S3C_PCM_CLKCTL);
- ctl &= ~(S3C_PCM_CTL_RXDIPSTICK_MASK
- << S3C_PCM_CTL_RXDIPSTICK_SHIFT);
-
- if (on) {
- ctl |= S3C_PCM_CTL_RXDMA_EN;
- ctl |= S3C_PCM_CTL_RXFIFO_EN;
- ctl |= S3C_PCM_CTL_ENABLE;
- ctl |= (0x20<<S3C_PCM_CTL_RXDIPSTICK_SHIFT);
- clkctl |= S3C_PCM_CLKCTL_SERCLK_EN;
- } else {
- ctl &= ~S3C_PCM_CTL_RXDMA_EN;
- ctl &= ~S3C_PCM_CTL_RXFIFO_EN;
-
- if (!(ctl & S3C_PCM_CTL_TXFIFO_EN)) {
- ctl &= ~S3C_PCM_CTL_ENABLE;
- if (!pcm->idleclk)
- clkctl |= S3C_PCM_CLKCTL_SERCLK_EN;
- }
- }
-
- writel(clkctl, regs + S3C_PCM_CLKCTL);
- writel(ctl, regs + S3C_PCM_CTL);
-}
-
-static int s3c_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(rtd->cpu_dai);
- unsigned long flags;
-
- dev_dbg(pcm->dev, "Entered %s\n", __func__);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- spin_lock_irqsave(&pcm->lock, flags);
-
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- s3c_pcm_snd_rxctrl(pcm, 1);
- else
- s3c_pcm_snd_txctrl(pcm, 1);
-
- spin_unlock_irqrestore(&pcm->lock, flags);
- break;
-
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- spin_lock_irqsave(&pcm->lock, flags);
-
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- s3c_pcm_snd_rxctrl(pcm, 0);
- else
- s3c_pcm_snd_txctrl(pcm, 0);
-
- spin_unlock_irqrestore(&pcm->lock, flags);
- break;
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int s3c_pcm_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *socdai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(rtd->cpu_dai);
- struct s3c_dma_params *dma_data;
- void __iomem *regs = pcm->regs;
- struct clk *clk;
- int sclk_div, sync_div;
- unsigned long flags;
- u32 clkctl;
-
- dev_dbg(pcm->dev, "Entered %s\n", __func__);
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- dma_data = pcm->dma_playback;
- else
- dma_data = pcm->dma_capture;
-
- snd_soc_dai_set_dma_data(rtd->cpu_dai, substream, dma_data);
-
- /* Strictly check for sample size */
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S16_LE:
- break;
- default:
- return -EINVAL;
- }
-
- spin_lock_irqsave(&pcm->lock, flags);
-
- /* Get hold of the PCMSOURCE_CLK */
- clkctl = readl(regs + S3C_PCM_CLKCTL);
- if (clkctl & S3C_PCM_CLKCTL_SERCLKSEL_PCLK)
- clk = pcm->pclk;
- else
- clk = pcm->cclk;
-
- /* Set the SCLK divider */
- sclk_div = clk_get_rate(clk) / pcm->sclk_per_fs /
- params_rate(params) / 2 - 1;
-
- clkctl &= ~(S3C_PCM_CLKCTL_SCLKDIV_MASK
- << S3C_PCM_CLKCTL_SCLKDIV_SHIFT);
- clkctl |= ((sclk_div & S3C_PCM_CLKCTL_SCLKDIV_MASK)
- << S3C_PCM_CLKCTL_SCLKDIV_SHIFT);
-
- /* Set the SYNC divider */
- sync_div = pcm->sclk_per_fs - 1;
-
- clkctl &= ~(S3C_PCM_CLKCTL_SYNCDIV_MASK
- << S3C_PCM_CLKCTL_SYNCDIV_SHIFT);
- clkctl |= ((sync_div & S3C_PCM_CLKCTL_SYNCDIV_MASK)
- << S3C_PCM_CLKCTL_SYNCDIV_SHIFT);
-
- writel(clkctl, regs + S3C_PCM_CLKCTL);
-
- spin_unlock_irqrestore(&pcm->lock, flags);
-
- dev_dbg(pcm->dev, "PCMSOURCE_CLK-%lu SCLK=%ufs SCLK_DIV=%d SYNC_DIV=%d\n",
- clk_get_rate(clk), pcm->sclk_per_fs,
- sclk_div, sync_div);
-
- return 0;
-}
-
-static int s3c_pcm_set_fmt(struct snd_soc_dai *cpu_dai,
- unsigned int fmt)
-{
- struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai);
- void __iomem *regs = pcm->regs;
- unsigned long flags;
- int ret = 0;
- u32 ctl;
-
- dev_dbg(pcm->dev, "Entered %s\n", __func__);
-
- spin_lock_irqsave(&pcm->lock, flags);
-
- ctl = readl(regs + S3C_PCM_CTL);
-
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- /* Nothing to do, NB_NF by default */
- break;
- default:
- dev_err(pcm->dev, "Unsupported clock inversion!\n");
- ret = -EINVAL;
- goto exit;
- }
-
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBS_CFS:
- /* Nothing to do, Master by default */
- break;
- default:
- dev_err(pcm->dev, "Unsupported master/slave format!\n");
- ret = -EINVAL;
- goto exit;
- }
-
- switch (fmt & SND_SOC_DAIFMT_CLOCK_MASK) {
- case SND_SOC_DAIFMT_CONT:
- pcm->idleclk = 1;
- break;
- case SND_SOC_DAIFMT_GATED:
- pcm->idleclk = 0;
- break;
- default:
- dev_err(pcm->dev, "Invalid Clock gating request!\n");
- ret = -EINVAL;
- goto exit;
- }
-
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_DSP_A:
- ctl |= S3C_PCM_CTL_TXMSB_AFTER_FSYNC;
- ctl |= S3C_PCM_CTL_RXMSB_AFTER_FSYNC;
- break;
- case SND_SOC_DAIFMT_DSP_B:
- ctl &= ~S3C_PCM_CTL_TXMSB_AFTER_FSYNC;
- ctl &= ~S3C_PCM_CTL_RXMSB_AFTER_FSYNC;
- break;
- default:
- dev_err(pcm->dev, "Unsupported data format!\n");
- ret = -EINVAL;
- goto exit;
- }
-
- writel(ctl, regs + S3C_PCM_CTL);
-
-exit:
- spin_unlock_irqrestore(&pcm->lock, flags);
-
- return ret;
-}
-
-static int s3c_pcm_set_clkdiv(struct snd_soc_dai *cpu_dai,
- int div_id, int div)
-{
- struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai);
-
- switch (div_id) {
- case S3C_PCM_SCLK_PER_FS:
- pcm->sclk_per_fs = div;
- break;
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int s3c_pcm_set_sysclk(struct snd_soc_dai *cpu_dai,
- int clk_id, unsigned int freq, int dir)
-{
- struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai);
- void __iomem *regs = pcm->regs;
- u32 clkctl = readl(regs + S3C_PCM_CLKCTL);
-
- switch (clk_id) {
- case S3C_PCM_CLKSRC_PCLK:
- clkctl |= S3C_PCM_CLKCTL_SERCLKSEL_PCLK;
- break;
-
- case S3C_PCM_CLKSRC_MUX:
- clkctl &= ~S3C_PCM_CLKCTL_SERCLKSEL_PCLK;
-
- if (clk_get_rate(pcm->cclk) != freq)
- clk_set_rate(pcm->cclk, freq);
-
- break;
-
- default:
- return -EINVAL;
- }
-
- writel(clkctl, regs + S3C_PCM_CLKCTL);
-
- return 0;
-}
-
-static struct snd_soc_dai_ops s3c_pcm_dai_ops = {
- .set_sysclk = s3c_pcm_set_sysclk,
- .set_clkdiv = s3c_pcm_set_clkdiv,
- .trigger = s3c_pcm_trigger,
- .hw_params = s3c_pcm_hw_params,
- .set_fmt = s3c_pcm_set_fmt,
-};
-
-#define S3C_PCM_RATES SNDRV_PCM_RATE_8000_96000
-
-#define S3C_PCM_DAI_DECLARE \
- .symmetric_rates = 1, \
- .ops = &s3c_pcm_dai_ops, \
- .playback = { \
- .channels_min = 2, \
- .channels_max = 2, \
- .rates = S3C_PCM_RATES, \
- .formats = SNDRV_PCM_FMTBIT_S16_LE, \
- }, \
- .capture = { \
- .channels_min = 2, \
- .channels_max = 2, \
- .rates = S3C_PCM_RATES, \
- .formats = SNDRV_PCM_FMTBIT_S16_LE, \
- }
-
-struct snd_soc_dai_driver s3c_pcm_dai[] = {
- [0] = {
- .name = "samsung-pcm.0",
- S3C_PCM_DAI_DECLARE,
- },
- [1] = {
- .name = "samsung-pcm.1",
- S3C_PCM_DAI_DECLARE,
- },
-};
-EXPORT_SYMBOL_GPL(s3c_pcm_dai);
-
-static __devinit int s3c_pcm_dev_probe(struct platform_device *pdev)
-{
- struct s3c_pcm_info *pcm;
- struct resource *mem_res, *dmatx_res, *dmarx_res;
- struct s3c_audio_pdata *pcm_pdata;
- int ret;
-
- /* Check for valid device index */
- if ((pdev->id < 0) || pdev->id >= ARRAY_SIZE(s3c_pcm)) {
- dev_err(&pdev->dev, "id %d out of range\n", pdev->id);
- return -EINVAL;
- }
-
- pcm_pdata = pdev->dev.platform_data;
-
- /* Check for availability of necessary resource */
- dmatx_res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (!dmatx_res) {
- dev_err(&pdev->dev, "Unable to get PCM-TX dma resource\n");
- return -ENXIO;
- }
-
- dmarx_res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
- if (!dmarx_res) {
- dev_err(&pdev->dev, "Unable to get PCM-RX dma resource\n");
- return -ENXIO;
- }
-
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem_res) {
- dev_err(&pdev->dev, "Unable to get register resource\n");
- return -ENXIO;
- }
-
- if (pcm_pdata && pcm_pdata->cfg_gpio && pcm_pdata->cfg_gpio(pdev)) {
- dev_err(&pdev->dev, "Unable to configure gpio\n");
- return -EINVAL;
- }
-
- pcm = &s3c_pcm[pdev->id];
- pcm->dev = &pdev->dev;
-
- spin_lock_init(&pcm->lock);
-
- /* Default is 128fs */
- pcm->sclk_per_fs = 128;
-
- pcm->cclk = clk_get(&pdev->dev, "audio-bus");
- if (IS_ERR(pcm->cclk)) {
- dev_err(&pdev->dev, "failed to get audio-bus\n");
- ret = PTR_ERR(pcm->cclk);
- goto err1;
- }
- clk_enable(pcm->cclk);
-
- /* record our pcm structure for later use in the callbacks */
- dev_set_drvdata(&pdev->dev, pcm);
-
- if (!request_mem_region(mem_res->start,
- resource_size(mem_res), "samsung-pcm")) {
- dev_err(&pdev->dev, "Unable to request register region\n");
- ret = -EBUSY;
- goto err2;
- }
-
- pcm->regs = ioremap(mem_res->start, 0x100);
- if (pcm->regs == NULL) {
- dev_err(&pdev->dev, "cannot ioremap registers\n");
- ret = -ENXIO;
- goto err3;
- }
-
- pcm->pclk = clk_get(&pdev->dev, "pcm");
- if (IS_ERR(pcm->pclk)) {
- dev_err(&pdev->dev, "failed to get pcm_clock\n");
- ret = -ENOENT;
- goto err4;
- }
- clk_enable(pcm->pclk);
-
- ret = snd_soc_register_dai(&pdev->dev, &s3c_pcm_dai[pdev->id]);
- if (ret != 0) {
- dev_err(&pdev->dev, "failed to get pcm_clock\n");
- goto err5;
- }
-
- s3c_pcm_stereo_in[pdev->id].dma_addr = mem_res->start
- + S3C_PCM_RXFIFO;
- s3c_pcm_stereo_out[pdev->id].dma_addr = mem_res->start
- + S3C_PCM_TXFIFO;
-
- s3c_pcm_stereo_in[pdev->id].channel = dmarx_res->start;
- s3c_pcm_stereo_out[pdev->id].channel = dmatx_res->start;
-
- pcm->dma_capture = &s3c_pcm_stereo_in[pdev->id];
- pcm->dma_playback = &s3c_pcm_stereo_out[pdev->id];
-
- return 0;
-
-err5:
- clk_disable(pcm->pclk);
- clk_put(pcm->pclk);
-err4:
- iounmap(pcm->regs);
-err3:
- release_mem_region(mem_res->start, resource_size(mem_res));
-err2:
- clk_disable(pcm->cclk);
- clk_put(pcm->cclk);
-err1:
- return ret;
-}
-
-static __devexit int s3c_pcm_dev_remove(struct platform_device *pdev)
-{
- struct s3c_pcm_info *pcm = &s3c_pcm[pdev->id];
- struct resource *mem_res;
-
- snd_soc_unregister_dai(&pdev->dev);
-
- iounmap(pcm->regs);
-
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(mem_res->start, resource_size(mem_res));
-
- clk_disable(pcm->cclk);
- clk_disable(pcm->pclk);
- clk_put(pcm->pclk);
- clk_put(pcm->cclk);
-
- return 0;
-}
-
-static struct platform_driver s3c_pcm_driver = {
- .probe = s3c_pcm_dev_probe,
- .remove = s3c_pcm_dev_remove,
- .driver = {
- .name = "samsung-pcm",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init s3c_pcm_init(void)
-{
- return platform_driver_register(&s3c_pcm_driver);
-}
-module_init(s3c_pcm_init);
-
-static void __exit s3c_pcm_exit(void)
-{
- platform_driver_unregister(&s3c_pcm_driver);
-}
-module_exit(s3c_pcm_exit);
-
-/* Module information */
-MODULE_AUTHOR("Jaswinder Singh, <jassi.brar@samsung.com>");
-MODULE_DESCRIPTION("S3C PCM Controller Driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:samsung-pcm");
+++ /dev/null
-/* sound/soc/s3c24xx/pcm.h
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#ifndef __S3C_PCM_H
-#define __S3C_PCM_H __FILE__
-
-/*Register Offsets */
-#define S3C_PCM_CTL (0x00)
-#define S3C_PCM_CLKCTL (0x04)
-#define S3C_PCM_TXFIFO (0x08)
-#define S3C_PCM_RXFIFO (0x0C)
-#define S3C_PCM_IRQCTL (0x10)
-#define S3C_PCM_IRQSTAT (0x14)
-#define S3C_PCM_FIFOSTAT (0x18)
-#define S3C_PCM_CLRINT (0x20)
-
-/* PCM_CTL Bit-Fields */
-#define S3C_PCM_CTL_TXDIPSTICK_MASK (0x3f)
-#define S3C_PCM_CTL_TXDIPSTICK_SHIFT (13)
-#define S3C_PCM_CTL_RXDIPSTICK_MASK (0x3f)
-#define S3C_PCM_CTL_RXDIPSTICK_SHIFT (7)
-#define S3C_PCM_CTL_TXDMA_EN (0x1<<6)
-#define S3C_PCM_CTL_RXDMA_EN (0x1<<5)
-#define S3C_PCM_CTL_TXMSB_AFTER_FSYNC (0x1<<4)
-#define S3C_PCM_CTL_RXMSB_AFTER_FSYNC (0x1<<3)
-#define S3C_PCM_CTL_TXFIFO_EN (0x1<<2)
-#define S3C_PCM_CTL_RXFIFO_EN (0x1<<1)
-#define S3C_PCM_CTL_ENABLE (0x1<<0)
-
-/* PCM_CLKCTL Bit-Fields */
-#define S3C_PCM_CLKCTL_SERCLK_EN (0x1<<19)
-#define S3C_PCM_CLKCTL_SERCLKSEL_PCLK (0x1<<18)
-#define S3C_PCM_CLKCTL_SCLKDIV_MASK (0x1ff)
-#define S3C_PCM_CLKCTL_SYNCDIV_MASK (0x1ff)
-#define S3C_PCM_CLKCTL_SCLKDIV_SHIFT (9)
-#define S3C_PCM_CLKCTL_SYNCDIV_SHIFT (0)
-
-/* PCM_TXFIFO Bit-Fields */
-#define S3C_PCM_TXFIFO_DVALID (0x1<<16)
-#define S3C_PCM_TXFIFO_DATA_MSK (0xffff<<0)
-
-/* PCM_RXFIFO Bit-Fields */
-#define S3C_PCM_RXFIFO_DVALID (0x1<<16)
-#define S3C_PCM_RXFIFO_DATA_MSK (0xffff<<0)
-
-/* PCM_IRQCTL Bit-Fields */
-#define S3C_PCM_IRQCTL_IRQEN (0x1<<14)
-#define S3C_PCM_IRQCTL_WRDEN (0x1<<12)
-#define S3C_PCM_IRQCTL_TXEMPTYEN (0x1<<11)
-#define S3C_PCM_IRQCTL_TXALMSTEMPTYEN (0x1<<10)
-#define S3C_PCM_IRQCTL_TXFULLEN (0x1<<9)
-#define S3C_PCM_IRQCTL_TXALMSTFULLEN (0x1<<8)
-#define S3C_PCM_IRQCTL_TXSTARVEN (0x1<<7)
-#define S3C_PCM_IRQCTL_TXERROVRFLEN (0x1<<6)
-#define S3C_PCM_IRQCTL_RXEMPTEN (0x1<<5)
-#define S3C_PCM_IRQCTL_RXALMSTEMPTEN (0x1<<4)
-#define S3C_PCM_IRQCTL_RXFULLEN (0x1<<3)
-#define S3C_PCM_IRQCTL_RXALMSTFULLEN (0x1<<2)
-#define S3C_PCM_IRQCTL_RXSTARVEN (0x1<<1)
-#define S3C_PCM_IRQCTL_RXERROVRFLEN (0x1<<0)
-
-/* PCM_IRQSTAT Bit-Fields */
-#define S3C_PCM_IRQSTAT_IRQPND (0x1<<13)
-#define S3C_PCM_IRQSTAT_WRD_XFER (0x1<<12)
-#define S3C_PCM_IRQSTAT_TXEMPTY (0x1<<11)
-#define S3C_PCM_IRQSTAT_TXALMSTEMPTY (0x1<<10)
-#define S3C_PCM_IRQSTAT_TXFULL (0x1<<9)
-#define S3C_PCM_IRQSTAT_TXALMSTFULL (0x1<<8)
-#define S3C_PCM_IRQSTAT_TXSTARV (0x1<<7)
-#define S3C_PCM_IRQSTAT_TXERROVRFL (0x1<<6)
-#define S3C_PCM_IRQSTAT_RXEMPT (0x1<<5)
-#define S3C_PCM_IRQSTAT_RXALMSTEMPT (0x1<<4)
-#define S3C_PCM_IRQSTAT_RXFULL (0x1<<3)
-#define S3C_PCM_IRQSTAT_RXALMSTFULL (0x1<<2)
-#define S3C_PCM_IRQSTAT_RXSTARV (0x1<<1)
-#define S3C_PCM_IRQSTAT_RXERROVRFL (0x1<<0)
-
-/* PCM_FIFOSTAT Bit-Fields */
-#define S3C_PCM_FIFOSTAT_TXCNT_MSK (0x3f<<14)
-#define S3C_PCM_FIFOSTAT_TXFIFOEMPTY (0x1<<13)
-#define S3C_PCM_FIFOSTAT_TXFIFOALMSTEMPTY (0x1<<12)
-#define S3C_PCM_FIFOSTAT_TXFIFOFULL (0x1<<11)
-#define S3C_PCM_FIFOSTAT_TXFIFOALMSTFULL (0x1<<10)
-#define S3C_PCM_FIFOSTAT_RXCNT_MSK (0x3f<<4)
-#define S3C_PCM_FIFOSTAT_RXFIFOEMPTY (0x1<<3)
-#define S3C_PCM_FIFOSTAT_RXFIFOALMSTEMPTY (0x1<<2)
-#define S3C_PCM_FIFOSTAT_RXFIFOFULL (0x1<<1)
-#define S3C_PCM_FIFOSTAT_RXFIFOALMSTFULL (0x1<<0)
-
-#define S3C_PCM_CLKSRC_PCLK 0
-#define S3C_PCM_CLKSRC_MUX 1
-
-#define S3C_PCM_SCLK_PER_FS 0
-
-/**
- * struct s3c_pcm_info - S3C PCM Controller information
- * @dev: The parent device passed to use from the probe.
- * @regs: The pointer to the device register block.
- * @dma_playback: DMA information for playback channel.
- * @dma_capture: DMA information for capture channel.
- */
-struct s3c_pcm_info {
- spinlock_t lock;
- struct device *dev;
- void __iomem *regs;
-
- unsigned int sclk_per_fs;
-
- /* Whether to keep PCMSCLK enabled even when idle(no active xfer) */
- unsigned int idleclk;
-
- struct clk *pclk;
- struct clk *cclk;
-
- struct s3c_dma_params *dma_playback;
- struct s3c_dma_params *dma_capture;
-};
-
-#endif /* __S3C_PCM_H */
+++ /dev/null
-/* linux/include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h
- *
- * Copyright 2007 Simtec Electronics <linux@simtec.co.uk>
- * http://armlinux.simtec.co.uk/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * S3C2412 IIS register definition
-*/
-
-#ifndef __ASM_ARCH_REGS_S3C2412_IIS_H
-#define __ASM_ARCH_REGS_S3C2412_IIS_H
-
-#define S3C2412_IISCON (0x00)
-#define S3C2412_IISMOD (0x04)
-#define S3C2412_IISFIC (0x08)
-#define S3C2412_IISPSR (0x0C)
-#define S3C2412_IISTXD (0x10)
-#define S3C2412_IISRXD (0x14)
-
-#define S5PC1XX_IISFICS 0x18
-#define S5PC1XX_IISTXDS 0x1C
-
-#define S5PC1XX_IISCON_SW_RST (1 << 31)
-#define S5PC1XX_IISCON_FRXOFSTATUS (1 << 26)
-#define S5PC1XX_IISCON_FRXORINTEN (1 << 25)
-#define S5PC1XX_IISCON_FTXSURSTAT (1 << 24)
-#define S5PC1XX_IISCON_FTXSURINTEN (1 << 23)
-#define S5PC1XX_IISCON_TXSDMAPAUSE (1 << 20)
-#define S5PC1XX_IISCON_TXSDMACTIVE (1 << 18)
-
-#define S3C64XX_IISCON_FTXURSTATUS (1 << 17)
-#define S3C64XX_IISCON_FTXURINTEN (1 << 16)
-#define S3C64XX_IISCON_TXFIFO2_EMPTY (1 << 15)
-#define S3C64XX_IISCON_TXFIFO1_EMPTY (1 << 14)
-#define S3C64XX_IISCON_TXFIFO2_FULL (1 << 13)
-#define S3C64XX_IISCON_TXFIFO1_FULL (1 << 12)
-
-#define S3C2412_IISCON_LRINDEX (1 << 11)
-#define S3C2412_IISCON_TXFIFO_EMPTY (1 << 10)
-#define S3C2412_IISCON_RXFIFO_EMPTY (1 << 9)
-#define S3C2412_IISCON_TXFIFO_FULL (1 << 8)
-#define S3C2412_IISCON_RXFIFO_FULL (1 << 7)
-#define S3C2412_IISCON_TXDMA_PAUSE (1 << 6)
-#define S3C2412_IISCON_RXDMA_PAUSE (1 << 5)
-#define S3C2412_IISCON_TXCH_PAUSE (1 << 4)
-#define S3C2412_IISCON_RXCH_PAUSE (1 << 3)
-#define S3C2412_IISCON_TXDMA_ACTIVE (1 << 2)
-#define S3C2412_IISCON_RXDMA_ACTIVE (1 << 1)
-#define S3C2412_IISCON_IIS_ACTIVE (1 << 0)
-
-#define S5PC1XX_IISMOD_OPCLK_CDCLK_OUT (0 << 30)
-#define S5PC1XX_IISMOD_OPCLK_CDCLK_IN (1 << 30)
-#define S5PC1XX_IISMOD_OPCLK_BCLK_OUT (2 << 30)
-#define S5PC1XX_IISMOD_OPCLK_PCLK (3 << 30)
-#define S5PC1XX_IISMOD_OPCLK_MASK (3 << 30)
-#define S5PC1XX_IISMOD_TXS_IDMA (1 << 28) /* Sec_TXFIFO use I-DMA */
-#define S5PC1XX_IISMOD_BLCS_MASK 0x3
-#define S5PC1XX_IISMOD_BLCS_SHIFT 26
-#define S5PC1XX_IISMOD_BLCP_MASK 0x3
-#define S5PC1XX_IISMOD_BLCP_SHIFT 24
-
-#define S3C64XX_IISMOD_C2DD_HHALF (1 << 21) /* Discard Higher-half */
-#define S3C64XX_IISMOD_C2DD_LHALF (1 << 20) /* Discard Lower-half */
-#define S3C64XX_IISMOD_C1DD_HHALF (1 << 19)
-#define S3C64XX_IISMOD_C1DD_LHALF (1 << 18)
-#define S3C64XX_IISMOD_DC2_EN (1 << 17)
-#define S3C64XX_IISMOD_DC1_EN (1 << 16)
-#define S3C64XX_IISMOD_BLC_16BIT (0 << 13)
-#define S3C64XX_IISMOD_BLC_8BIT (1 << 13)
-#define S3C64XX_IISMOD_BLC_24BIT (2 << 13)
-#define S3C64XX_IISMOD_BLC_MASK (3 << 13)
-
-#define S3C2412_IISMOD_IMS_SYSMUX (1 << 10)
-#define S3C2412_IISMOD_SLAVE (1 << 11)
-#define S3C2412_IISMOD_MODE_TXONLY (0 << 8)
-#define S3C2412_IISMOD_MODE_RXONLY (1 << 8)
-#define S3C2412_IISMOD_MODE_TXRX (2 << 8)
-#define S3C2412_IISMOD_MODE_MASK (3 << 8)
-#define S3C2412_IISMOD_LR_LLOW (0 << 7)
-#define S3C2412_IISMOD_LR_RLOW (1 << 7)
-#define S3C2412_IISMOD_SDF_IIS (0 << 5)
-#define S3C2412_IISMOD_SDF_MSB (1 << 5)
-#define S3C2412_IISMOD_SDF_LSB (2 << 5)
-#define S3C2412_IISMOD_SDF_MASK (3 << 5)
-#define S3C2412_IISMOD_RCLK_256FS (0 << 3)
-#define S3C2412_IISMOD_RCLK_512FS (1 << 3)
-#define S3C2412_IISMOD_RCLK_384FS (2 << 3)
-#define S3C2412_IISMOD_RCLK_768FS (3 << 3)
-#define S3C2412_IISMOD_RCLK_MASK (3 << 3)
-#define S3C2412_IISMOD_BCLK_32FS (0 << 1)
-#define S3C2412_IISMOD_BCLK_48FS (1 << 1)
-#define S3C2412_IISMOD_BCLK_16FS (2 << 1)
-#define S3C2412_IISMOD_BCLK_24FS (3 << 1)
-#define S3C2412_IISMOD_BCLK_MASK (3 << 1)
-#define S3C2412_IISMOD_8BIT (1 << 0)
-
-#define S3C64XX_IISMOD_CDCLKCON (1 << 12)
-
-#define S3C2412_IISPSR_PSREN (1 << 15)
-
-#define S3C64XX_IISFIC_TX2COUNT(x) (((x) >> 24) & 0xf)
-#define S3C64XX_IISFIC_TX1COUNT(x) (((x) >> 16) & 0xf)
-
-#define S3C2412_IISFIC_TXFLUSH (1 << 15)
-#define S3C2412_IISFIC_RXFLUSH (1 << 7)
-#define S3C2412_IISFIC_TXCOUNT(x) (((x) >> 8) & 0xf)
-#define S3C2412_IISFIC_RXCOUNT(x) (((x) >> 0) & 0xf)
-
-#define S5PC1XX_IISFICS_TXFLUSH (1 << 15)
-#define S5PC1XX_IISFICS_TXCOUNT(x) (((x) >> 8) & 0x7f)
-
-#endif /* __ASM_ARCH_REGS_S3C2412_IIS_H */
+++ /dev/null
-/*
- * rx1950.c -- ALSA Soc Audio Layer
- *
- * Copyright (c) 2010 Vasily Khoruzhick <anarsoul@gmail.com>
- *
- * Based on smdk2440.c and magician.c
- *
- * Authors: Graeme Gregory graeme.gregory@wolfsonmicro.com
- * Philipp Zabel <philipp.zabel@gmail.com>
- * Denis Grigoriev <dgreenday@gmail.com>
- * Vasily Khoruzhick <anarsoul@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/platform_device.h>
-#include <linux/i2c.h>
-#include <linux/gpio.h>
-#include <linux/clk.h>
-
-#include <sound/soc.h>
-#include <sound/uda1380.h>
-#include <sound/jack.h>
-
-#include <plat/regs-iis.h>
-
-#include <mach/regs-clock.h>
-
-#include <asm/mach-types.h>
-
-#include "dma.h"
-#include "s3c24xx-i2s.h"
-#include "../codecs/uda1380.h"
-
-static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd);
-static int rx1950_startup(struct snd_pcm_substream *substream);
-static int rx1950_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params);
-static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *kcontrol, int event);
-
-static unsigned int rates[] = {
- 16000,
- 44100,
- 48000,
-};
-
-static struct snd_pcm_hw_constraint_list hw_rates = {
- .count = ARRAY_SIZE(rates),
- .list = rates,
- .mask = 0,
-};
-
-static struct snd_soc_jack hp_jack;
-
-static struct snd_soc_jack_pin hp_jack_pins[] = {
- {
- .pin = "Headphone Jack",
- .mask = SND_JACK_HEADPHONE,
- },
- {
- .pin = "Speaker",
- .mask = SND_JACK_HEADPHONE,
- .invert = 1,
- },
-};
-
-static struct snd_soc_jack_gpio hp_jack_gpios[] = {
- [0] = {
- .gpio = S3C2410_GPG(12),
- .name = "hp-gpio",
- .report = SND_JACK_HEADPHONE,
- .invert = 1,
- .debounce_time = 200,
- },
-};
-
-static struct snd_soc_ops rx1950_ops = {
- .startup = rx1950_startup,
- .hw_params = rx1950_hw_params,
-};
-
-/* s3c24xx digital audio interface glue - connects codec <--> CPU */
-static struct snd_soc_dai_link rx1950_uda1380_dai[] = {
- {
- .name = "uda1380",
- .stream_name = "UDA1380 Duplex",
- .cpu_dai_name = "s3c24xx-iis",
- .codec_dai_name = "uda1380-hifi",
- .init = rx1950_uda1380_init,
- .platform_name = "samsung-audio",
- .codec_name = "uda1380-codec.0-001a",
- .ops = &rx1950_ops,
- },
-};
-
-static struct snd_soc_card rx1950_asoc = {
- .name = "rx1950",
- .dai_link = rx1950_uda1380_dai,
- .num_links = ARRAY_SIZE(rx1950_uda1380_dai),
-};
-
-/* rx1950 machine dapm widgets */
-static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
- SND_SOC_DAPM_HP("Headphone Jack", NULL),
- SND_SOC_DAPM_MIC("Mic Jack", NULL),
- SND_SOC_DAPM_SPK("Speaker", rx1950_spk_power),
-};
-
-/* rx1950 machine audio_map */
-static const struct snd_soc_dapm_route audio_map[] = {
- /* headphone connected to VOUTLHP, VOUTRHP */
- {"Headphone Jack", NULL, "VOUTLHP"},
- {"Headphone Jack", NULL, "VOUTRHP"},
-
- /* ext speaker connected to VOUTL, VOUTR */
- {"Speaker", NULL, "VOUTL"},
- {"Speaker", NULL, "VOUTR"},
-
- /* mic is connected to VINM */
- {"VINM", NULL, "Mic Jack"},
-};
-
-static struct platform_device *s3c24xx_snd_device;
-
-static int rx1950_startup(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
-
- runtime->hw.rate_min = hw_rates.list[0];
- runtime->hw.rate_max = hw_rates.list[hw_rates.count - 1];
- runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
-
- return snd_pcm_hw_constraint_list(runtime, 0,
- SNDRV_PCM_HW_PARAM_RATE,
- &hw_rates);
-}
-
-static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *kcontrol, int event)
-{
- if (SND_SOC_DAPM_EVENT_ON(event))
- gpio_set_value(S3C2410_GPA(1), 1);
- else
- gpio_set_value(S3C2410_GPA(1), 0);
-
- return 0;
-}
-
-static int rx1950_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- int div;
- int ret;
- unsigned int rate = params_rate(params);
- int clk_source, fs_mode;
-
- switch (rate) {
- case 16000:
- case 48000:
- clk_source = S3C24XX_CLKSRC_PCLK;
- fs_mode = S3C2410_IISMOD_256FS;
- div = s3c24xx_i2s_get_clockrate() / (256 * rate);
- if (s3c24xx_i2s_get_clockrate() % (256 * rate) > (128 * rate))
- div++;
- break;
- case 44100:
- case 88200:
- clk_source = S3C24XX_CLKSRC_MPLL;
- fs_mode = S3C2410_IISMOD_384FS;
- div = 1;
- break;
- default:
- printk(KERN_ERR "%s: rate %d is not supported\n",
- __func__, rate);
- return -EINVAL;
- }
-
- /* set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
- if (ret < 0)
- return ret;
-
- /* set cpu DAI configuration */
- ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
- if (ret < 0)
- return ret;
-
- /* select clock source */
- ret = snd_soc_dai_set_sysclk(cpu_dai, clk_source, rate,
- SND_SOC_CLOCK_OUT);
- if (ret < 0)
- return ret;
-
- /* set MCLK division for sample rate */
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
- fs_mode);
- if (ret < 0)
- return ret;
-
- /* set BCLK division for sample rate */
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_BCLK,
- S3C2410_IISMOD_32FS);
- if (ret < 0)
- return ret;
-
- /* set prescaler division for sample rate */
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
- S3C24XX_PRESCALE(div, div));
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
- int err;
-
- /* Add rx1950 specific widgets */
- err = snd_soc_dapm_new_controls(dapm, uda1380_dapm_widgets,
- ARRAY_SIZE(uda1380_dapm_widgets));
-
- if (err)
- return err;
-
- /* Set up rx1950 specific audio path audio_mapnects */
- err = snd_soc_dapm_add_routes(dapm, audio_map,
- ARRAY_SIZE(audio_map));
-
- if (err)
- return err;
-
- snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
- snd_soc_dapm_enable_pin(dapm, "Speaker");
-
- snd_soc_dapm_sync(dapm);
-
- snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
- &hp_jack);
-
- snd_soc_jack_add_pins(&hp_jack, ARRAY_SIZE(hp_jack_pins),
- hp_jack_pins);
-
- snd_soc_jack_add_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
- hp_jack_gpios);
-
- return 0;
-}
-
-static int __init rx1950_init(void)
-{
- int ret;
-
- if (!machine_is_rx1950())
- return -ENODEV;
-
- /* configure some gpios */
- ret = gpio_request(S3C2410_GPA(1), "speaker-power");
- if (ret)
- goto err_gpio;
-
- ret = gpio_direction_output(S3C2410_GPA(1), 0);
- if (ret)
- goto err_gpio_conf;
-
- s3c24xx_snd_device = platform_device_alloc("soc-audio", -1);
- if (!s3c24xx_snd_device) {
- ret = -ENOMEM;
- goto err_plat_alloc;
- }
-
- platform_set_drvdata(s3c24xx_snd_device, &rx1950_asoc);
- ret = platform_device_add(s3c24xx_snd_device);
-
- if (ret) {
- platform_device_put(s3c24xx_snd_device);
- goto err_plat_add;
- }
-
- return 0;
-
-err_plat_add:
-err_plat_alloc:
-err_gpio_conf:
- gpio_free(S3C2410_GPA(1));
-
-err_gpio:
- return ret;
-}
-
-static void __exit rx1950_exit(void)
-{
- platform_device_unregister(s3c24xx_snd_device);
- snd_soc_jack_free_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
- hp_jack_gpios);
- gpio_free(S3C2410_GPA(1));
-}
-
-module_init(rx1950_init);
-module_exit(rx1950_exit);
-
-/* Module information */
-MODULE_AUTHOR("Vasily Khoruzhick");
-MODULE_DESCRIPTION("ALSA SoC RX1950");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* sound/soc/s3c24xx/s3c-i2c-v2.c
- *
- * ALSA Soc Audio Layer - I2S core for newer Samsung SoCs.
- *
- * Copyright (c) 2006 Wolfson Microelectronics PLC.
- * Graeme Gregory graeme.gregory@wolfsonmicro.com
- * linux@wolfsonmicro.com
- *
- * Copyright (c) 2008, 2007, 2004-2005 Simtec Electronics
- * http://armlinux.simtec.co.uk/
- * Ben Dooks <ben@simtec.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/delay.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include <mach/dma.h>
-
-#include "regs-i2s-v2.h"
-#include "s3c-i2s-v2.h"
-#include "dma.h"
-
-#undef S3C_IIS_V2_SUPPORTED
-
-#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413) \
- || defined(CONFIG_CPU_S5PV210)
-#define S3C_IIS_V2_SUPPORTED
-#endif
-
-#ifdef CONFIG_PLAT_S3C64XX
-#define S3C_IIS_V2_SUPPORTED
-#endif
-
-#ifndef S3C_IIS_V2_SUPPORTED
-#error Unsupported CPU model
-#endif
-
-#define S3C2412_I2S_DEBUG_CON 0
-
-static inline struct s3c_i2sv2_info *to_info(struct snd_soc_dai *cpu_dai)
-{
- return snd_soc_dai_get_drvdata(cpu_dai);
-}
-
-#define bit_set(v, b) (((v) & (b)) ? 1 : 0)
-
-#if S3C2412_I2S_DEBUG_CON
-static void dbg_showcon(const char *fn, u32 con)
-{
- printk(KERN_DEBUG "%s: LRI=%d, TXFEMPT=%d, RXFEMPT=%d, TXFFULL=%d, RXFFULL=%d\n", fn,
- bit_set(con, S3C2412_IISCON_LRINDEX),
- bit_set(con, S3C2412_IISCON_TXFIFO_EMPTY),
- bit_set(con, S3C2412_IISCON_RXFIFO_EMPTY),
- bit_set(con, S3C2412_IISCON_TXFIFO_FULL),
- bit_set(con, S3C2412_IISCON_RXFIFO_FULL));
-
- printk(KERN_DEBUG "%s: PAUSE: TXDMA=%d, RXDMA=%d, TXCH=%d, RXCH=%d\n",
- fn,
- bit_set(con, S3C2412_IISCON_TXDMA_PAUSE),
- bit_set(con, S3C2412_IISCON_RXDMA_PAUSE),
- bit_set(con, S3C2412_IISCON_TXCH_PAUSE),
- bit_set(con, S3C2412_IISCON_RXCH_PAUSE));
- printk(KERN_DEBUG "%s: ACTIVE: TXDMA=%d, RXDMA=%d, IIS=%d\n", fn,
- bit_set(con, S3C2412_IISCON_TXDMA_ACTIVE),
- bit_set(con, S3C2412_IISCON_RXDMA_ACTIVE),
- bit_set(con, S3C2412_IISCON_IIS_ACTIVE));
-}
-#else
-static inline void dbg_showcon(const char *fn, u32 con)
-{
-}
-#endif
-
-
-/* Turn on or off the transmission path. */
-static void s3c2412_snd_txctrl(struct s3c_i2sv2_info *i2s, int on)
-{
- void __iomem *regs = i2s->regs;
- u32 fic, con, mod;
-
- pr_debug("%s(%d)\n", __func__, on);
-
- fic = readl(regs + S3C2412_IISFIC);
- con = readl(regs + S3C2412_IISCON);
- mod = readl(regs + S3C2412_IISMOD);
-
- pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic);
-
- if (on) {
- con |= S3C2412_IISCON_TXDMA_ACTIVE | S3C2412_IISCON_IIS_ACTIVE;
- con &= ~S3C2412_IISCON_TXDMA_PAUSE;
- con &= ~S3C2412_IISCON_TXCH_PAUSE;
-
- switch (mod & S3C2412_IISMOD_MODE_MASK) {
- case S3C2412_IISMOD_MODE_TXONLY:
- case S3C2412_IISMOD_MODE_TXRX:
- /* do nothing, we are in the right mode */
- break;
-
- case S3C2412_IISMOD_MODE_RXONLY:
- mod &= ~S3C2412_IISMOD_MODE_MASK;
- mod |= S3C2412_IISMOD_MODE_TXRX;
- break;
-
- default:
- dev_err(i2s->dev, "TXEN: Invalid MODE %x in IISMOD\n",
- mod & S3C2412_IISMOD_MODE_MASK);
- break;
- }
-
- writel(con, regs + S3C2412_IISCON);
- writel(mod, regs + S3C2412_IISMOD);
- } else {
- /* Note, we do not have any indication that the FIFO problems
- * tha the S3C2410/2440 had apply here, so we should be able
- * to disable the DMA and TX without resetting the FIFOS.
- */
-
- con |= S3C2412_IISCON_TXDMA_PAUSE;
- con |= S3C2412_IISCON_TXCH_PAUSE;
- con &= ~S3C2412_IISCON_TXDMA_ACTIVE;
-
- switch (mod & S3C2412_IISMOD_MODE_MASK) {
- case S3C2412_IISMOD_MODE_TXRX:
- mod &= ~S3C2412_IISMOD_MODE_MASK;
- mod |= S3C2412_IISMOD_MODE_RXONLY;
- break;
-
- case S3C2412_IISMOD_MODE_TXONLY:
- mod &= ~S3C2412_IISMOD_MODE_MASK;
- con &= ~S3C2412_IISCON_IIS_ACTIVE;
- break;
-
- default:
- dev_err(i2s->dev, "TXDIS: Invalid MODE %x in IISMOD\n",
- mod & S3C2412_IISMOD_MODE_MASK);
- break;
- }
-
- writel(mod, regs + S3C2412_IISMOD);
- writel(con, regs + S3C2412_IISCON);
- }
-
- fic = readl(regs + S3C2412_IISFIC);
- dbg_showcon(__func__, con);
- pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic);
-}
-
-static void s3c2412_snd_rxctrl(struct s3c_i2sv2_info *i2s, int on)
-{
- void __iomem *regs = i2s->regs;
- u32 fic, con, mod;
-
- pr_debug("%s(%d)\n", __func__, on);
-
- fic = readl(regs + S3C2412_IISFIC);
- con = readl(regs + S3C2412_IISCON);
- mod = readl(regs + S3C2412_IISMOD);
-
- pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic);
-
- if (on) {
- con |= S3C2412_IISCON_RXDMA_ACTIVE | S3C2412_IISCON_IIS_ACTIVE;
- con &= ~S3C2412_IISCON_RXDMA_PAUSE;
- con &= ~S3C2412_IISCON_RXCH_PAUSE;
-
- switch (mod & S3C2412_IISMOD_MODE_MASK) {
- case S3C2412_IISMOD_MODE_TXRX:
- case S3C2412_IISMOD_MODE_RXONLY:
- /* do nothing, we are in the right mode */
- break;
-
- case S3C2412_IISMOD_MODE_TXONLY:
- mod &= ~S3C2412_IISMOD_MODE_MASK;
- mod |= S3C2412_IISMOD_MODE_TXRX;
- break;
-
- default:
- dev_err(i2s->dev, "RXEN: Invalid MODE %x in IISMOD\n",
- mod & S3C2412_IISMOD_MODE_MASK);
- }
-
- writel(mod, regs + S3C2412_IISMOD);
- writel(con, regs + S3C2412_IISCON);
- } else {
- /* See txctrl notes on FIFOs. */
-
- con &= ~S3C2412_IISCON_RXDMA_ACTIVE;
- con |= S3C2412_IISCON_RXDMA_PAUSE;
- con |= S3C2412_IISCON_RXCH_PAUSE;
-
- switch (mod & S3C2412_IISMOD_MODE_MASK) {
- case S3C2412_IISMOD_MODE_RXONLY:
- con &= ~S3C2412_IISCON_IIS_ACTIVE;
- mod &= ~S3C2412_IISMOD_MODE_MASK;
- break;
-
- case S3C2412_IISMOD_MODE_TXRX:
- mod &= ~S3C2412_IISMOD_MODE_MASK;
- mod |= S3C2412_IISMOD_MODE_TXONLY;
- break;
-
- default:
- dev_err(i2s->dev, "RXDIS: Invalid MODE %x in IISMOD\n",
- mod & S3C2412_IISMOD_MODE_MASK);
- }
-
- writel(con, regs + S3C2412_IISCON);
- writel(mod, regs + S3C2412_IISMOD);
- }
-
- fic = readl(regs + S3C2412_IISFIC);
- pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic);
-}
-
-#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
-
-/*
- * Wait for the LR signal to allow synchronisation to the L/R clock
- * from the codec. May only be needed for slave mode.
- */
-static int s3c2412_snd_lrsync(struct s3c_i2sv2_info *i2s)
-{
- u32 iiscon;
- unsigned long loops = msecs_to_loops(5);
-
- pr_debug("Entered %s\n", __func__);
-
- while (--loops) {
- iiscon = readl(i2s->regs + S3C2412_IISCON);
- if (iiscon & S3C2412_IISCON_LRINDEX)
- break;
-
- cpu_relax();
- }
-
- if (!loops) {
- printk(KERN_ERR "%s: timeout\n", __func__);
- return -ETIMEDOUT;
- }
-
- return 0;
-}
-
-/*
- * Set S3C2412 I2S DAI format
- */
-static int s3c2412_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
- unsigned int fmt)
-{
- struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
- u32 iismod;
-
- pr_debug("Entered %s\n", __func__);
-
- iismod = readl(i2s->regs + S3C2412_IISMOD);
- pr_debug("hw_params r: IISMOD: %x \n", iismod);
-
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- i2s->master = 0;
- iismod |= S3C2412_IISMOD_SLAVE;
- break;
- case SND_SOC_DAIFMT_CBS_CFS:
- i2s->master = 1;
- iismod &= ~S3C2412_IISMOD_SLAVE;
- break;
- default:
- pr_err("unknwon master/slave format\n");
- return -EINVAL;
- }
-
- iismod &= ~S3C2412_IISMOD_SDF_MASK;
-
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_RIGHT_J:
- iismod |= S3C2412_IISMOD_LR_RLOW;
- iismod |= S3C2412_IISMOD_SDF_MSB;
- break;
- case SND_SOC_DAIFMT_LEFT_J:
- iismod |= S3C2412_IISMOD_LR_RLOW;
- iismod |= S3C2412_IISMOD_SDF_LSB;
- break;
- case SND_SOC_DAIFMT_I2S:
- iismod &= ~S3C2412_IISMOD_LR_RLOW;
- iismod |= S3C2412_IISMOD_SDF_IIS;
- break;
- default:
- pr_err("Unknown data format\n");
- return -EINVAL;
- }
-
- writel(iismod, i2s->regs + S3C2412_IISMOD);
- pr_debug("hw_params w: IISMOD: %x \n", iismod);
- return 0;
-}
-
-static int s3c_i2sv2_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
-{
- struct s3c_i2sv2_info *i2s = to_info(dai);
- struct s3c_dma_params *dma_data;
- u32 iismod;
-
- pr_debug("Entered %s\n", __func__);
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- dma_data = i2s->dma_playback;
- else
- dma_data = i2s->dma_capture;
-
- snd_soc_dai_set_dma_data(dai, substream, dma_data);
-
- /* Working copies of register */
- iismod = readl(i2s->regs + S3C2412_IISMOD);
- pr_debug("%s: r: IISMOD: %x\n", __func__, iismod);
-
- iismod &= ~S3C64XX_IISMOD_BLC_MASK;
- /* Sample size */
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S8:
- iismod |= S3C64XX_IISMOD_BLC_8BIT;
- break;
- case SNDRV_PCM_FORMAT_S16_LE:
- break;
- case SNDRV_PCM_FORMAT_S24_LE:
- iismod |= S3C64XX_IISMOD_BLC_24BIT;
- break;
- }
-
- writel(iismod, i2s->regs + S3C2412_IISMOD);
- pr_debug("%s: w: IISMOD: %x\n", __func__, iismod);
-
- return 0;
-}
-
-static int s3c_i2sv2_set_sysclk(struct snd_soc_dai *cpu_dai,
- int clk_id, unsigned int freq, int dir)
-{
- struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
- u32 iismod = readl(i2s->regs + S3C2412_IISMOD);
-
- pr_debug("Entered %s\n", __func__);
- pr_debug("%s r: IISMOD: %x\n", __func__, iismod);
-
- switch (clk_id) {
- case S3C_I2SV2_CLKSRC_PCLK:
- iismod &= ~S3C2412_IISMOD_IMS_SYSMUX;
- break;
-
- case S3C_I2SV2_CLKSRC_AUDIOBUS:
- iismod |= S3C2412_IISMOD_IMS_SYSMUX;
- break;
-
- case S3C_I2SV2_CLKSRC_CDCLK:
- /* Error if controller doesn't have the CDCLKCON bit */
- if (!(i2s->feature & S3C_FEATURE_CDCLKCON))
- return -EINVAL;
-
- switch (dir) {
- case SND_SOC_CLOCK_IN:
- iismod |= S3C64XX_IISMOD_CDCLKCON;
- break;
- case SND_SOC_CLOCK_OUT:
- iismod &= ~S3C64XX_IISMOD_CDCLKCON;
- break;
- default:
- return -EINVAL;
- }
- break;
-
- default:
- return -EINVAL;
- }
-
- writel(iismod, i2s->regs + S3C2412_IISMOD);
- pr_debug("%s w: IISMOD: %x\n", __func__, iismod);
-
- return 0;
-}
-
-static int s3c2412_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct s3c_i2sv2_info *i2s = to_info(rtd->cpu_dai);
- int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
- unsigned long irqs;
- int ret = 0;
- struct s3c_dma_params *dma_data =
- snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
-
- pr_debug("Entered %s\n", __func__);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- /* On start, ensure that the FIFOs are cleared and reset. */
-
- writel(capture ? S3C2412_IISFIC_RXFLUSH : S3C2412_IISFIC_TXFLUSH,
- i2s->regs + S3C2412_IISFIC);
-
- /* clear again, just in case */
- writel(0x0, i2s->regs + S3C2412_IISFIC);
-
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- if (!i2s->master) {
- ret = s3c2412_snd_lrsync(i2s);
- if (ret)
- goto exit_err;
- }
-
- local_irq_save(irqs);
-
- if (capture)
- s3c2412_snd_rxctrl(i2s, 1);
- else
- s3c2412_snd_txctrl(i2s, 1);
-
- local_irq_restore(irqs);
-
- /*
- * Load the next buffer to DMA to meet the reqirement
- * of the auto reload mechanism of S3C24XX.
- * This call won't bother S3C64XX.
- */
- s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
-
- break;
-
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- local_irq_save(irqs);
-
- if (capture)
- s3c2412_snd_rxctrl(i2s, 0);
- else
- s3c2412_snd_txctrl(i2s, 0);
-
- local_irq_restore(irqs);
- break;
- default:
- ret = -EINVAL;
- break;
- }
-
-exit_err:
- return ret;
-}
-
-/*
- * Set S3C2412 Clock dividers
- */
-static int s3c2412_i2s_set_clkdiv(struct snd_soc_dai *cpu_dai,
- int div_id, int div)
-{
- struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
- u32 reg;
-
- pr_debug("%s(%p, %d, %d)\n", __func__, cpu_dai, div_id, div);
-
- switch (div_id) {
- case S3C_I2SV2_DIV_BCLK:
- switch (div) {
- case 16:
- div = S3C2412_IISMOD_BCLK_16FS;
- break;
-
- case 32:
- div = S3C2412_IISMOD_BCLK_32FS;
- break;
-
- case 24:
- div = S3C2412_IISMOD_BCLK_24FS;
- break;
-
- case 48:
- div = S3C2412_IISMOD_BCLK_48FS;
- break;
-
- default:
- return -EINVAL;
- }
-
- reg = readl(i2s->regs + S3C2412_IISMOD);
- reg &= ~S3C2412_IISMOD_BCLK_MASK;
- writel(reg | div, i2s->regs + S3C2412_IISMOD);
-
- pr_debug("%s: MOD=%08x\n", __func__, readl(i2s->regs + S3C2412_IISMOD));
- break;
-
- case S3C_I2SV2_DIV_RCLK:
- switch (div) {
- case 256:
- div = S3C2412_IISMOD_RCLK_256FS;
- break;
-
- case 384:
- div = S3C2412_IISMOD_RCLK_384FS;
- break;
-
- case 512:
- div = S3C2412_IISMOD_RCLK_512FS;
- break;
-
- case 768:
- div = S3C2412_IISMOD_RCLK_768FS;
- break;
-
- default:
- return -EINVAL;
- }
-
- reg = readl(i2s->regs + S3C2412_IISMOD);
- reg &= ~S3C2412_IISMOD_RCLK_MASK;
- writel(reg | div, i2s->regs + S3C2412_IISMOD);
- pr_debug("%s: MOD=%08x\n", __func__, readl(i2s->regs + S3C2412_IISMOD));
- break;
-
- case S3C_I2SV2_DIV_PRESCALER:
- if (div >= 0) {
- writel((div << 8) | S3C2412_IISPSR_PSREN,
- i2s->regs + S3C2412_IISPSR);
- } else {
- writel(0x0, i2s->regs + S3C2412_IISPSR);
- }
- pr_debug("%s: PSR=%08x\n", __func__, readl(i2s->regs + S3C2412_IISPSR));
- break;
-
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static snd_pcm_sframes_t s3c2412_i2s_delay(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct s3c_i2sv2_info *i2s = to_info(dai);
- u32 reg = readl(i2s->regs + S3C2412_IISFIC);
- snd_pcm_sframes_t delay;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- delay = S3C2412_IISFIC_TXCOUNT(reg);
- else
- delay = S3C2412_IISFIC_RXCOUNT(reg);
-
- return delay;
-}
-
-struct clk *s3c_i2sv2_get_clock(struct snd_soc_dai *cpu_dai)
-{
- struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
- u32 iismod = readl(i2s->regs + S3C2412_IISMOD);
-
- if (iismod & S3C2412_IISMOD_IMS_SYSMUX)
- return i2s->iis_cclk;
- else
- return i2s->iis_pclk;
-}
-EXPORT_SYMBOL_GPL(s3c_i2sv2_get_clock);
-
-/* default table of all avaialable root fs divisors */
-static unsigned int iis_fs_tab[] = { 256, 512, 384, 768 };
-
-int s3c_i2sv2_iis_calc_rate(struct s3c_i2sv2_rate_calc *info,
- unsigned int *fstab,
- unsigned int rate, struct clk *clk)
-{
- unsigned long clkrate = clk_get_rate(clk);
- unsigned int div;
- unsigned int fsclk;
- unsigned int actual;
- unsigned int fs;
- unsigned int fsdiv;
- signed int deviation = 0;
- unsigned int best_fs = 0;
- unsigned int best_div = 0;
- unsigned int best_rate = 0;
- unsigned int best_deviation = INT_MAX;
-
- pr_debug("Input clock rate %ldHz\n", clkrate);
-
- if (fstab == NULL)
- fstab = iis_fs_tab;
-
- for (fs = 0; fs < ARRAY_SIZE(iis_fs_tab); fs++) {
- fsdiv = iis_fs_tab[fs];
-
- fsclk = clkrate / fsdiv;
- div = fsclk / rate;
-
- if ((fsclk % rate) > (rate / 2))
- div++;
-
- if (div <= 1)
- continue;
-
- actual = clkrate / (fsdiv * div);
- deviation = actual - rate;
-
- printk(KERN_DEBUG "%ufs: div %u => result %u, deviation %d\n",
- fsdiv, div, actual, deviation);
-
- deviation = abs(deviation);
-
- if (deviation < best_deviation) {
- best_fs = fsdiv;
- best_div = div;
- best_rate = actual;
- best_deviation = deviation;
- }
-
- if (deviation == 0)
- break;
- }
-
- printk(KERN_DEBUG "best: fs=%u, div=%u, rate=%u\n",
- best_fs, best_div, best_rate);
-
- info->fs_div = best_fs;
- info->clk_div = best_div;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(s3c_i2sv2_iis_calc_rate);
-
-int s3c_i2sv2_probe(struct snd_soc_dai *dai,
- struct s3c_i2sv2_info *i2s,
- unsigned long base)
-{
- struct device *dev = dai->dev;
- unsigned int iismod;
-
- i2s->dev = dev;
-
- /* record our i2s structure for later use in the callbacks */
- snd_soc_dai_set_drvdata(dai, i2s);
-
- i2s->regs = ioremap(base, 0x100);
- if (i2s->regs == NULL) {
- dev_err(dev, "cannot ioremap registers\n");
- return -ENXIO;
- }
-
- i2s->iis_pclk = clk_get(dev, "iis");
- if (IS_ERR(i2s->iis_pclk)) {
- dev_err(dev, "failed to get iis_clock\n");
- iounmap(i2s->regs);
- return -ENOENT;
- }
-
- clk_enable(i2s->iis_pclk);
-
- /* Mark ourselves as in TXRX mode so we can run through our cleanup
- * process without warnings. */
- iismod = readl(i2s->regs + S3C2412_IISMOD);
- iismod |= S3C2412_IISMOD_MODE_TXRX;
- writel(iismod, i2s->regs + S3C2412_IISMOD);
- s3c2412_snd_txctrl(i2s, 0);
- s3c2412_snd_rxctrl(i2s, 0);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(s3c_i2sv2_probe);
-
-#ifdef CONFIG_PM
-static int s3c2412_i2s_suspend(struct snd_soc_dai *dai)
-{
- struct s3c_i2sv2_info *i2s = to_info(dai);
- u32 iismod;
-
- if (dai->active) {
- i2s->suspend_iismod = readl(i2s->regs + S3C2412_IISMOD);
- i2s->suspend_iiscon = readl(i2s->regs + S3C2412_IISCON);
- i2s->suspend_iispsr = readl(i2s->regs + S3C2412_IISPSR);
-
- /* some basic suspend checks */
-
- iismod = readl(i2s->regs + S3C2412_IISMOD);
-
- if (iismod & S3C2412_IISCON_RXDMA_ACTIVE)
- pr_warning("%s: RXDMA active?\n", __func__);
-
- if (iismod & S3C2412_IISCON_TXDMA_ACTIVE)
- pr_warning("%s: TXDMA active?\n", __func__);
-
- if (iismod & S3C2412_IISCON_IIS_ACTIVE)
- pr_warning("%s: IIS active\n", __func__);
- }
-
- return 0;
-}
-
-static int s3c2412_i2s_resume(struct snd_soc_dai *dai)
-{
- struct s3c_i2sv2_info *i2s = to_info(dai);
-
- pr_info("dai_active %d, IISMOD %08x, IISCON %08x\n",
- dai->active, i2s->suspend_iismod, i2s->suspend_iiscon);
-
- if (dai->active) {
- writel(i2s->suspend_iiscon, i2s->regs + S3C2412_IISCON);
- writel(i2s->suspend_iismod, i2s->regs + S3C2412_IISMOD);
- writel(i2s->suspend_iispsr, i2s->regs + S3C2412_IISPSR);
-
- writel(S3C2412_IISFIC_RXFLUSH | S3C2412_IISFIC_TXFLUSH,
- i2s->regs + S3C2412_IISFIC);
-
- ndelay(250);
- writel(0x0, i2s->regs + S3C2412_IISFIC);
- }
-
- return 0;
-}
-#else
-#define s3c2412_i2s_suspend NULL
-#define s3c2412_i2s_resume NULL
-#endif
-
-int s3c_i2sv2_register_dai(struct device *dev, int id,
- struct snd_soc_dai_driver *drv)
-{
- struct snd_soc_dai_ops *ops = drv->ops;
-
- ops->trigger = s3c2412_i2s_trigger;
- if (!ops->hw_params)
- ops->hw_params = s3c_i2sv2_hw_params;
- ops->set_fmt = s3c2412_i2s_set_fmt;
- ops->set_clkdiv = s3c2412_i2s_set_clkdiv;
- ops->set_sysclk = s3c_i2sv2_set_sysclk;
-
- /* Allow overriding by (for example) IISv4 */
- if (!ops->delay)
- ops->delay = s3c2412_i2s_delay;
-
- drv->suspend = s3c2412_i2s_suspend;
- drv->resume = s3c2412_i2s_resume;
-
- return snd_soc_register_dai(dev, drv);
-}
-EXPORT_SYMBOL_GPL(s3c_i2sv2_register_dai);
-
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* sound/soc/s3c24xx/s3c-i2s-v2.h
- *
- * ALSA Soc Audio Layer - S3C_I2SV2 I2S driver
- *
- * Copyright (c) 2007 Simtec Electronics
- * http://armlinux.simtec.co.uk/
- * Ben Dooks <ben@simtec.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
-*/
-
-/* This code is the core support for the I2S block found in a number of
- * Samsung SoC devices which is unofficially named I2S-V2. Currently the
- * S3C2412 and the S3C64XX series use this block to provide 1 or 2 I2S
- * channels via configurable GPIO.
- */
-
-#ifndef __SND_SOC_S3C24XX_S3C_I2SV2_I2S_H
-#define __SND_SOC_S3C24XX_S3C_I2SV2_I2S_H __FILE__
-
-#define S3C_I2SV2_DIV_BCLK (1)
-#define S3C_I2SV2_DIV_RCLK (2)
-#define S3C_I2SV2_DIV_PRESCALER (3)
-
-#define S3C_I2SV2_CLKSRC_PCLK 0
-#define S3C_I2SV2_CLKSRC_AUDIOBUS 1
-#define S3C_I2SV2_CLKSRC_CDCLK 2
-
-/* Set this flag for I2S controllers that have the bit IISMOD[12]
- * bridge/break RCLK signal and external Xi2sCDCLK pin.
- */
-#define S3C_FEATURE_CDCLKCON (1 << 0)
-
-/**
- * struct s3c_i2sv2_info - S3C I2S-V2 information
- * @dev: The parent device passed to use from the probe.
- * @regs: The pointer to the device registe block.
- * @feature: Set of bit-flags indicating features of the controller.
- * @master: True if the I2S core is the I2S bit clock master.
- * @dma_playback: DMA information for playback channel.
- * @dma_capture: DMA information for capture channel.
- * @suspend_iismod: PM save for the IISMOD register.
- * @suspend_iiscon: PM save for the IISCON register.
- * @suspend_iispsr: PM save for the IISPSR register.
- *
- * This is the private codec state for the hardware associated with an
- * I2S channel such as the register mappings and clock sources.
- */
-struct s3c_i2sv2_info {
- struct device *dev;
- void __iomem *regs;
-
- u32 feature;
-
- struct clk *iis_pclk;
- struct clk *iis_cclk;
-
- unsigned char master;
-
- struct s3c_dma_params *dma_playback;
- struct s3c_dma_params *dma_capture;
-
- u32 suspend_iismod;
- u32 suspend_iiscon;
- u32 suspend_iispsr;
-
- unsigned long base;
-};
-
-extern struct clk *s3c_i2sv2_get_clock(struct snd_soc_dai *cpu_dai);
-
-struct s3c_i2sv2_rate_calc {
- unsigned int clk_div; /* for prescaler */
- unsigned int fs_div; /* for root frame clock */
-};
-
-extern int s3c_i2sv2_iis_calc_rate(struct s3c_i2sv2_rate_calc *info,
- unsigned int *fstab,
- unsigned int rate, struct clk *clk);
-
-/**
- * s3c_i2sv2_probe - probe for i2s device helper
- * @dai: The ASoC DAI structure supplied to the original probe.
- * @i2s: Our local i2s structure to fill in.
- * @base: The base address for the registers.
- */
-extern int s3c_i2sv2_probe(struct snd_soc_dai *dai,
- struct s3c_i2sv2_info *i2s,
- unsigned long base);
-
-/**
- * s3c_i2sv2_register_dai - register dai with soc core
- * @dev: DAI device
- * @id: DAI ID
- * @drv: The driver structure to register
- *
- * Fill in any missing fields and then register the given dai with the
- * soc core.
- */
-extern int s3c_i2sv2_register_dai(struct device *dev, int id,
- struct snd_soc_dai_driver *drv);
-
-#endif /* __SND_SOC_S3C24XX_S3C_I2SV2_I2S_H */
+++ /dev/null
-/* sound/soc/s3c24xx/s3c2412-i2s.c
- *
- * ALSA Soc Audio Layer - S3C2412 I2S driver
- *
- * Copyright (c) 2006 Wolfson Microelectronics PLC.
- * Graeme Gregory graeme.gregory@wolfsonmicro.com
- * linux@wolfsonmicro.com
- *
- * Copyright (c) 2007, 2004-2005 Simtec Electronics
- * http://armlinux.simtec.co.uk/
- * Ben Dooks <ben@simtec.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/gpio.h>
-#include <linux/clk.h>
-#include <linux/kernel.h>
-#include <linux/io.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/initval.h>
-#include <sound/soc.h>
-#include <mach/hardware.h>
-
-#include <mach/regs-gpio.h>
-#include <mach/dma.h>
-
-#include "dma.h"
-#include "regs-i2s-v2.h"
-#include "s3c2412-i2s.h"
-
-#define S3C2412_I2S_DEBUG 0
-
-static struct s3c2410_dma_client s3c2412_dma_client_out = {
- .name = "I2S PCM Stereo out"
-};
-
-static struct s3c2410_dma_client s3c2412_dma_client_in = {
- .name = "I2S PCM Stereo in"
-};
-
-static struct s3c_dma_params s3c2412_i2s_pcm_stereo_out = {
- .client = &s3c2412_dma_client_out,
- .channel = DMACH_I2S_OUT,
- .dma_addr = S3C2410_PA_IIS + S3C2412_IISTXD,
- .dma_size = 4,
-};
-
-static struct s3c_dma_params s3c2412_i2s_pcm_stereo_in = {
- .client = &s3c2412_dma_client_in,
- .channel = DMACH_I2S_IN,
- .dma_addr = S3C2410_PA_IIS + S3C2412_IISRXD,
- .dma_size = 4,
-};
-
-static struct s3c_i2sv2_info s3c2412_i2s;
-
-static int s3c2412_i2s_probe(struct snd_soc_dai *dai)
-{
- int ret;
-
- pr_debug("Entered %s\n", __func__);
-
- ret = s3c_i2sv2_probe(dai, &s3c2412_i2s, S3C2410_PA_IIS);
- if (ret)
- return ret;
-
- s3c2412_i2s.dma_capture = &s3c2412_i2s_pcm_stereo_in;
- s3c2412_i2s.dma_playback = &s3c2412_i2s_pcm_stereo_out;
-
- s3c2412_i2s.iis_cclk = clk_get(dai->dev, "i2sclk");
- if (s3c2412_i2s.iis_cclk == NULL) {
- pr_err("failed to get i2sclk clock\n");
- iounmap(s3c2412_i2s.regs);
- return -ENODEV;
- }
-
- /* Set MPLL as the source for IIS CLK */
-
- clk_set_parent(s3c2412_i2s.iis_cclk, clk_get(NULL, "mpll"));
- clk_enable(s3c2412_i2s.iis_cclk);
-
- s3c2412_i2s.iis_cclk = s3c2412_i2s.iis_pclk;
-
- /* Configure the I2S pins in correct mode */
- s3c2410_gpio_cfgpin(S3C2410_GPE0, S3C2410_GPE0_I2SLRCK);
- s3c2410_gpio_cfgpin(S3C2410_GPE1, S3C2410_GPE1_I2SSCLK);
- s3c2410_gpio_cfgpin(S3C2410_GPE2, S3C2410_GPE2_CDCLK);
- s3c2410_gpio_cfgpin(S3C2410_GPE3, S3C2410_GPE3_I2SSDI);
- s3c2410_gpio_cfgpin(S3C2410_GPE4, S3C2410_GPE4_I2SSDO);
-
- return 0;
-}
-
-static int s3c2412_i2s_remove(struct snd_soc_dai *dai)
-{
- clk_disable(s3c2412_i2s.iis_cclk);
- clk_put(s3c2412_i2s.iis_cclk);
- iounmap(s3c2412_i2s.regs);
-
- return 0;
-}
-
-static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *cpu_dai)
-{
- struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(cpu_dai);
- struct s3c_dma_params *dma_data;
- u32 iismod;
-
- pr_debug("Entered %s\n", __func__);
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- dma_data = i2s->dma_playback;
- else
- dma_data = i2s->dma_capture;
-
- snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
-
- iismod = readl(i2s->regs + S3C2412_IISMOD);
- pr_debug("%s: r: IISMOD: %x\n", __func__, iismod);
-
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S8:
- iismod |= S3C2412_IISMOD_8BIT;
- break;
- case SNDRV_PCM_FORMAT_S16_LE:
- iismod &= ~S3C2412_IISMOD_8BIT;
- break;
- }
-
- writel(iismod, i2s->regs + S3C2412_IISMOD);
- pr_debug("%s: w: IISMOD: %x\n", __func__, iismod);
-
- return 0;
-}
-
-#define S3C2412_I2S_RATES \
- (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \
- SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
- SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
-
-static struct snd_soc_dai_ops s3c2412_i2s_dai_ops = {
- .hw_params = s3c2412_i2s_hw_params,
-};
-
-static struct snd_soc_dai_driver s3c2412_i2s_dai = {
- .probe = s3c2412_i2s_probe,
- .remove = s3c2412_i2s_remove,
- .playback = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = S3C2412_I2S_RATES,
- .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,
- },
- .capture = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = S3C2412_I2S_RATES,
- .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,
- },
- .ops = &s3c2412_i2s_dai_ops,
-};
-
-static __devinit int s3c2412_iis_dev_probe(struct platform_device *pdev)
-{
- return snd_soc_register_dai(&pdev->dev, &s3c2412_i2s_dai);
-}
-
-static __devexit int s3c2412_iis_dev_remove(struct platform_device *pdev)
-{
- snd_soc_unregister_dai(&pdev->dev);
- return 0;
-}
-
-static struct platform_driver s3c2412_iis_driver = {
- .probe = s3c2412_iis_dev_probe,
- .remove = s3c2412_iis_dev_remove,
- .driver = {
- .name = "s3c2412-iis",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init s3c2412_i2s_init(void)
-{
- return platform_driver_register(&s3c2412_iis_driver);
-}
-module_init(s3c2412_i2s_init);
-
-static void __exit s3c2412_i2s_exit(void)
-{
- platform_driver_unregister(&s3c2412_iis_driver);
-}
-module_exit(s3c2412_i2s_exit);
-
-/* Module information */
-MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("S3C2412 I2S SoC Interface");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:s3c2412-iis");
+++ /dev/null
-/* sound/soc/s3c24xx/s3c2412-i2s.c
- *
- * ALSA Soc Audio Layer - S3C2412 I2S driver
- *
- * Copyright (c) 2007 Simtec Electronics
- * http://armlinux.simtec.co.uk/
- * Ben Dooks <ben@simtec.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
-*/
-
-#ifndef __SND_SOC_S3C24XX_S3C2412_I2S_H
-#define __SND_SOC_S3C24XX_S3C2412_I2S_H __FILE__
-
-#include "s3c-i2s-v2.h"
-
-#define S3C2412_DIV_BCLK S3C_I2SV2_DIV_BCLK
-#define S3C2412_DIV_RCLK S3C_I2SV2_DIV_RCLK
-#define S3C2412_DIV_PRESCALER S3C_I2SV2_DIV_PRESCALER
-
-#define S3C2412_CLKSRC_PCLK S3C_I2SV2_CLKSRC_PCLK
-#define S3C2412_CLKSRC_I2SCLK S3C_I2SV2_CLKSRC_AUDIOBUS
-
-#endif /* __SND_SOC_S3C24XX_S3C2412_I2S_H */
+++ /dev/null
-/*
- * s3c24xx-i2s.c -- ALSA Soc Audio Layer
- *
- * (c) 2006 Wolfson Microelectronics PLC.
- * Graeme Gregory graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
- *
- * Copyright 2004-2005 Simtec Electronics
- * http://armlinux.simtec.co.uk/
- * Ben Dooks <ben@simtec.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/clk.h>
-#include <linux/jiffies.h>
-#include <linux/io.h>
-#include <linux/gpio.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/initval.h>
-#include <sound/soc.h>
-
-#include <mach/hardware.h>
-#include <mach/regs-gpio.h>
-#include <mach/regs-clock.h>
-
-#include <asm/dma.h>
-#include <mach/dma.h>
-
-#include <plat/regs-iis.h>
-
-#include "dma.h"
-#include "s3c24xx-i2s.h"
-
-static struct s3c2410_dma_client s3c24xx_dma_client_out = {
- .name = "I2S PCM Stereo out"
-};
-
-static struct s3c2410_dma_client s3c24xx_dma_client_in = {
- .name = "I2S PCM Stereo in"
-};
-
-static struct s3c_dma_params s3c24xx_i2s_pcm_stereo_out = {
- .client = &s3c24xx_dma_client_out,
- .channel = DMACH_I2S_OUT,
- .dma_addr = S3C2410_PA_IIS + S3C2410_IISFIFO,
- .dma_size = 2,
-};
-
-static struct s3c_dma_params s3c24xx_i2s_pcm_stereo_in = {
- .client = &s3c24xx_dma_client_in,
- .channel = DMACH_I2S_IN,
- .dma_addr = S3C2410_PA_IIS + S3C2410_IISFIFO,
- .dma_size = 2,
-};
-
-struct s3c24xx_i2s_info {
- void __iomem *regs;
- struct clk *iis_clk;
- u32 iiscon;
- u32 iismod;
- u32 iisfcon;
- u32 iispsr;
-};
-static struct s3c24xx_i2s_info s3c24xx_i2s;
-
-static void s3c24xx_snd_txctrl(int on)
-{
- u32 iisfcon;
- u32 iiscon;
- u32 iismod;
-
- pr_debug("Entered %s\n", __func__);
-
- iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
- iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
- iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-
- pr_debug("r: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
-
- if (on) {
- iisfcon |= S3C2410_IISFCON_TXDMA | S3C2410_IISFCON_TXENABLE;
- iiscon |= S3C2410_IISCON_TXDMAEN | S3C2410_IISCON_IISEN;
- iiscon &= ~S3C2410_IISCON_TXIDLE;
- iismod |= S3C2410_IISMOD_TXMODE;
-
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
- writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
- } else {
- /* note, we have to disable the FIFOs otherwise bad things
- * seem to happen when the DMA stops. According to the
- * Samsung supplied kernel, this should allow the DMA
- * engine and FIFOs to reset. If this isn't allowed, the
- * DMA engine will simply freeze randomly.
- */
-
- iisfcon &= ~S3C2410_IISFCON_TXENABLE;
- iisfcon &= ~S3C2410_IISFCON_TXDMA;
- iiscon |= S3C2410_IISCON_TXIDLE;
- iiscon &= ~S3C2410_IISCON_TXDMAEN;
- iismod &= ~S3C2410_IISMOD_TXMODE;
-
- writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
- writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- }
-
- pr_debug("w: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
-}
-
-static void s3c24xx_snd_rxctrl(int on)
-{
- u32 iisfcon;
- u32 iiscon;
- u32 iismod;
-
- pr_debug("Entered %s\n", __func__);
-
- iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
- iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
- iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-
- pr_debug("r: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
-
- if (on) {
- iisfcon |= S3C2410_IISFCON_RXDMA | S3C2410_IISFCON_RXENABLE;
- iiscon |= S3C2410_IISCON_RXDMAEN | S3C2410_IISCON_IISEN;
- iiscon &= ~S3C2410_IISCON_RXIDLE;
- iismod |= S3C2410_IISMOD_RXMODE;
-
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
- writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
- } else {
- /* note, we have to disable the FIFOs otherwise bad things
- * seem to happen when the DMA stops. According to the
- * Samsung supplied kernel, this should allow the DMA
- * engine and FIFOs to reset. If this isn't allowed, the
- * DMA engine will simply freeze randomly.
- */
-
- iisfcon &= ~S3C2410_IISFCON_RXENABLE;
- iisfcon &= ~S3C2410_IISFCON_RXDMA;
- iiscon |= S3C2410_IISCON_RXIDLE;
- iiscon &= ~S3C2410_IISCON_RXDMAEN;
- iismod &= ~S3C2410_IISMOD_RXMODE;
-
- writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
- writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- }
-
- pr_debug("w: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
-}
-
-/*
- * Wait for the LR signal to allow synchronisation to the L/R clock
- * from the codec. May only be needed for slave mode.
- */
-static int s3c24xx_snd_lrsync(void)
-{
- u32 iiscon;
- int timeout = 50; /* 5ms */
-
- pr_debug("Entered %s\n", __func__);
-
- while (1) {
- iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
- if (iiscon & S3C2410_IISCON_LRINDEX)
- break;
-
- if (!timeout--)
- return -ETIMEDOUT;
- udelay(100);
- }
-
- return 0;
-}
-
-/*
- * Check whether CPU is the master or slave
- */
-static inline int s3c24xx_snd_is_clkmaster(void)
-{
- pr_debug("Entered %s\n", __func__);
-
- return (readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & S3C2410_IISMOD_SLAVE) ? 0:1;
-}
-
-/*
- * Set S3C24xx I2S DAI format
- */
-static int s3c24xx_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
- unsigned int fmt)
-{
- u32 iismod;
-
- pr_debug("Entered %s\n", __func__);
-
- iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
- pr_debug("hw_params r: IISMOD: %x \n", iismod);
-
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- iismod |= S3C2410_IISMOD_SLAVE;
- break;
- case SND_SOC_DAIFMT_CBS_CFS:
- iismod &= ~S3C2410_IISMOD_SLAVE;
- break;
- default:
- return -EINVAL;
- }
-
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_LEFT_J:
- iismod |= S3C2410_IISMOD_MSB;
- break;
- case SND_SOC_DAIFMT_I2S:
- iismod &= ~S3C2410_IISMOD_MSB;
- break;
- default:
- return -EINVAL;
- }
-
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- pr_debug("hw_params w: IISMOD: %x \n", iismod);
- return 0;
-}
-
-static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct s3c_dma_params *dma_data;
- u32 iismod;
-
- pr_debug("Entered %s\n", __func__);
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- dma_data = &s3c24xx_i2s_pcm_stereo_out;
- else
- dma_data = &s3c24xx_i2s_pcm_stereo_in;
-
- snd_soc_dai_set_dma_data(rtd->cpu_dai, substream, dma_data);
-
- /* Working copies of register */
- iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
- pr_debug("hw_params r: IISMOD: %x\n", iismod);
-
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S8:
- iismod &= ~S3C2410_IISMOD_16BIT;
- dma_data->dma_size = 1;
- break;
- case SNDRV_PCM_FORMAT_S16_LE:
- iismod |= S3C2410_IISMOD_16BIT;
- dma_data->dma_size = 2;
- break;
- default:
- return -EINVAL;
- }
-
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- pr_debug("hw_params w: IISMOD: %x\n", iismod);
- return 0;
-}
-
-static int s3c24xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
- struct snd_soc_dai *dai)
-{
- int ret = 0;
- struct s3c_dma_params *dma_data =
- snd_soc_dai_get_dma_data(dai, substream);
-
- pr_debug("Entered %s\n", __func__);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- if (!s3c24xx_snd_is_clkmaster()) {
- ret = s3c24xx_snd_lrsync();
- if (ret)
- goto exit_err;
- }
-
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- s3c24xx_snd_rxctrl(1);
- else
- s3c24xx_snd_txctrl(1);
-
- s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- s3c24xx_snd_rxctrl(0);
- else
- s3c24xx_snd_txctrl(0);
- break;
- default:
- ret = -EINVAL;
- break;
- }
-
-exit_err:
- return ret;
-}
-
-/*
- * Set S3C24xx Clock source
- */
-static int s3c24xx_i2s_set_sysclk(struct snd_soc_dai *cpu_dai,
- int clk_id, unsigned int freq, int dir)
-{
- u32 iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-
- pr_debug("Entered %s\n", __func__);
-
- iismod &= ~S3C2440_IISMOD_MPLL;
-
- switch (clk_id) {
- case S3C24XX_CLKSRC_PCLK:
- break;
- case S3C24XX_CLKSRC_MPLL:
- iismod |= S3C2440_IISMOD_MPLL;
- break;
- default:
- return -EINVAL;
- }
-
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- return 0;
-}
-
-/*
- * Set S3C24xx Clock dividers
- */
-static int s3c24xx_i2s_set_clkdiv(struct snd_soc_dai *cpu_dai,
- int div_id, int div)
-{
- u32 reg;
-
- pr_debug("Entered %s\n", __func__);
-
- switch (div_id) {
- case S3C24XX_DIV_BCLK:
- reg = readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & ~S3C2410_IISMOD_FS_MASK;
- writel(reg | div, s3c24xx_i2s.regs + S3C2410_IISMOD);
- break;
- case S3C24XX_DIV_MCLK:
- reg = readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & ~(S3C2410_IISMOD_384FS);
- writel(reg | div, s3c24xx_i2s.regs + S3C2410_IISMOD);
- break;
- case S3C24XX_DIV_PRESCALER:
- writel(div, s3c24xx_i2s.regs + S3C2410_IISPSR);
- reg = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
- writel(reg | S3C2410_IISCON_PSCEN, s3c24xx_i2s.regs + S3C2410_IISCON);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-/*
- * To avoid duplicating clock code, allow machine driver to
- * get the clockrate from here.
- */
-u32 s3c24xx_i2s_get_clockrate(void)
-{
- return clk_get_rate(s3c24xx_i2s.iis_clk);
-}
-EXPORT_SYMBOL_GPL(s3c24xx_i2s_get_clockrate);
-
-static int s3c24xx_i2s_probe(struct snd_soc_dai *dai)
-{
- pr_debug("Entered %s\n", __func__);
-
- s3c24xx_i2s.regs = ioremap(S3C2410_PA_IIS, 0x100);
- if (s3c24xx_i2s.regs == NULL)
- return -ENXIO;
-
- s3c24xx_i2s.iis_clk = clk_get(dai->dev, "iis");
- if (s3c24xx_i2s.iis_clk == NULL) {
- pr_err("failed to get iis_clock\n");
- iounmap(s3c24xx_i2s.regs);
- return -ENODEV;
- }
- clk_enable(s3c24xx_i2s.iis_clk);
-
- /* Configure the I2S pins in correct mode */
- s3c2410_gpio_cfgpin(S3C2410_GPE0, S3C2410_GPE0_I2SLRCK);
- s3c2410_gpio_cfgpin(S3C2410_GPE1, S3C2410_GPE1_I2SSCLK);
- s3c2410_gpio_cfgpin(S3C2410_GPE2, S3C2410_GPE2_CDCLK);
- s3c2410_gpio_cfgpin(S3C2410_GPE3, S3C2410_GPE3_I2SSDI);
- s3c2410_gpio_cfgpin(S3C2410_GPE4, S3C2410_GPE4_I2SSDO);
-
- writel(S3C2410_IISCON_IISEN, s3c24xx_i2s.regs + S3C2410_IISCON);
-
- s3c24xx_snd_txctrl(0);
- s3c24xx_snd_rxctrl(0);
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int s3c24xx_i2s_suspend(struct snd_soc_dai *cpu_dai)
-{
- pr_debug("Entered %s\n", __func__);
-
- s3c24xx_i2s.iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
- s3c24xx_i2s.iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
- s3c24xx_i2s.iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
- s3c24xx_i2s.iispsr = readl(s3c24xx_i2s.regs + S3C2410_IISPSR);
-
- clk_disable(s3c24xx_i2s.iis_clk);
-
- return 0;
-}
-
-static int s3c24xx_i2s_resume(struct snd_soc_dai *cpu_dai)
-{
- pr_debug("Entered %s\n", __func__);
- clk_enable(s3c24xx_i2s.iis_clk);
-
- writel(s3c24xx_i2s.iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
- writel(s3c24xx_i2s.iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- writel(s3c24xx_i2s.iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
- writel(s3c24xx_i2s.iispsr, s3c24xx_i2s.regs + S3C2410_IISPSR);
-
- return 0;
-}
-#else
-#define s3c24xx_i2s_suspend NULL
-#define s3c24xx_i2s_resume NULL
-#endif
-
-
-#define S3C24XX_I2S_RATES \
- (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \
- SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
- SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
-
-static struct snd_soc_dai_ops s3c24xx_i2s_dai_ops = {
- .trigger = s3c24xx_i2s_trigger,
- .hw_params = s3c24xx_i2s_hw_params,
- .set_fmt = s3c24xx_i2s_set_fmt,
- .set_clkdiv = s3c24xx_i2s_set_clkdiv,
- .set_sysclk = s3c24xx_i2s_set_sysclk,
-};
-
-static struct snd_soc_dai_driver s3c24xx_i2s_dai = {
- .probe = s3c24xx_i2s_probe,
- .suspend = s3c24xx_i2s_suspend,
- .resume = s3c24xx_i2s_resume,
- .playback = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = S3C24XX_I2S_RATES,
- .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,},
- .capture = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = S3C24XX_I2S_RATES,
- .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,},
- .ops = &s3c24xx_i2s_dai_ops,
-};
-
-static __devinit int s3c24xx_iis_dev_probe(struct platform_device *pdev)
-{
- return snd_soc_register_dai(&pdev->dev, &s3c24xx_i2s_dai);
-}
-
-static __devexit int s3c24xx_iis_dev_remove(struct platform_device *pdev)
-{
- snd_soc_unregister_dai(&pdev->dev);
- return 0;
-}
-
-static struct platform_driver s3c24xx_iis_driver = {
- .probe = s3c24xx_iis_dev_probe,
- .remove = s3c24xx_iis_dev_remove,
- .driver = {
- .name = "s3c24xx-iis",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init s3c24xx_i2s_init(void)
-{
- return platform_driver_register(&s3c24xx_iis_driver);
-}
-module_init(s3c24xx_i2s_init);
-
-static void __exit s3c24xx_i2s_exit(void)
-{
- platform_driver_unregister(&s3c24xx_iis_driver);
-}
-module_exit(s3c24xx_i2s_exit);
-
-/* Module information */
-MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("s3c24xx I2S SoC Interface");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:s3c24xx-iis");
+++ /dev/null
-/*
- * s3c24xx-i2s.c -- ALSA Soc Audio Layer
- *
- * Copyright 2005 Wolfson Microelectronics PLC.
- * Author: Graeme Gregory
- * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * Revision history
- * 10th Nov 2006 Initial version.
- */
-
-#ifndef S3C24XXI2S_H_
-#define S3C24XXI2S_H_
-
-/* clock sources */
-#define S3C24XX_CLKSRC_PCLK 0
-#define S3C24XX_CLKSRC_MPLL 1
-
-/* Clock dividers */
-#define S3C24XX_DIV_MCLK 0
-#define S3C24XX_DIV_BCLK 1
-#define S3C24XX_DIV_PRESCALER 2
-
-/* prescaler */
-#define S3C24XX_PRESCALE(a,b) \
- (((a - 1) << S3C2410_IISPSR_INTSHIFT) | ((b - 1) << S3C2410_IISPSR_EXTSHFIT))
-
-u32 s3c24xx_i2s_get_clockrate(void);
-
-#endif /*S3C24XXI2S_H_*/
+++ /dev/null
-/* sound/soc/s3c24xx/s3c24xx_simtec.c
- *
- * Copyright 2009 Simtec Electronics
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-#include <linux/clk.h>
-#include <linux/i2c.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-#include <plat/audio-simtec.h>
-
-#include "dma.h"
-#include "s3c24xx-i2s.h"
-#include "s3c24xx_simtec.h"
-
-static struct s3c24xx_audio_simtec_pdata *pdata;
-static struct clk *xtal_clk;
-
-static int spk_gain;
-static int spk_unmute;
-
-/**
- * speaker_gain_get - read the speaker gain setting.
- * @kcontrol: The control for the speaker gain.
- * @ucontrol: The value that needs to be updated.
- *
- * Read the value for the AMP gain control.
- */
-static int speaker_gain_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- ucontrol->value.integer.value[0] = spk_gain;
- return 0;
-}
-
-/**
- * speaker_gain_set - set the value of the speaker amp gain
- * @value: The value to write.
- */
-static void speaker_gain_set(int value)
-{
- gpio_set_value_cansleep(pdata->amp_gain[0], value & 1);
- gpio_set_value_cansleep(pdata->amp_gain[1], value >> 1);
-}
-
-/**
- * speaker_gain_put - set the speaker gain setting.
- * @kcontrol: The control for the speaker gain.
- * @ucontrol: The value that needs to be set.
- *
- * Set the value of the speaker gain from the specified
- * @ucontrol setting.
- *
- * Note, if the speaker amp is muted, then we do not set a gain value
- * as at-least one of the ICs that is fitted will try and power up even
- * if the main control is set to off.
- */
-static int speaker_gain_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- int value = ucontrol->value.integer.value[0];
-
- spk_gain = value;
-
- if (!spk_unmute)
- speaker_gain_set(value);
-
- return 0;
-}
-
-static const struct snd_kcontrol_new amp_gain_controls[] = {
- SOC_SINGLE_EXT("Speaker Gain", 0, 0, 3, 0,
- speaker_gain_get, speaker_gain_put),
-};
-
-/**
- * spk_unmute_state - set the unmute state of the speaker
- * @to: zero to unmute, non-zero to ununmute.
- */
-static void spk_unmute_state(int to)
-{
- pr_debug("%s: to=%d\n", __func__, to);
-
- spk_unmute = to;
- gpio_set_value(pdata->amp_gpio, to);
-
- /* if we're umuting, also re-set the gain */
- if (to && pdata->amp_gain[0] > 0)
- speaker_gain_set(spk_gain);
-}
-
-/**
- * speaker_unmute_get - read the speaker unmute setting.
- * @kcontrol: The control for the speaker gain.
- * @ucontrol: The value that needs to be updated.
- *
- * Read the value for the AMP gain control.
- */
-static int speaker_unmute_get(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- ucontrol->value.integer.value[0] = spk_unmute;
- return 0;
-}
-
-/**
- * speaker_unmute_put - set the speaker unmute setting.
- * @kcontrol: The control for the speaker gain.
- * @ucontrol: The value that needs to be set.
- *
- * Set the value of the speaker gain from the specified
- * @ucontrol setting.
- */
-static int speaker_unmute_put(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- spk_unmute_state(ucontrol->value.integer.value[0]);
- return 0;
-}
-
-/* This is added as a manual control as the speaker amps create clicks
- * when their power state is changed, which are far more noticeable than
- * anything produced by the CODEC itself.
- */
-static const struct snd_kcontrol_new amp_unmute_controls[] = {
- SOC_SINGLE_EXT("Speaker Switch", 0, 0, 1, 0,
- speaker_unmute_get, speaker_unmute_put),
-};
-
-void simtec_audio_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
-
- if (pdata->amp_gpio > 0) {
- pr_debug("%s: adding amp routes\n", __func__);
-
- snd_soc_add_controls(codec, amp_unmute_controls,
- ARRAY_SIZE(amp_unmute_controls));
- }
-
- if (pdata->amp_gain[0] > 0) {
- pr_debug("%s: adding amp controls\n", __func__);
- snd_soc_add_controls(codec, amp_gain_controls,
- ARRAY_SIZE(amp_gain_controls));
- }
-}
-EXPORT_SYMBOL_GPL(simtec_audio_init);
-
-#define CODEC_CLOCK 12000000
-
-/**
- * simtec_hw_params - update hardware parameters
- * @substream: The audio substream instance.
- * @params: The parameters requested.
- *
- * Update the codec data routing and configuration settings
- * from the supplied data.
- */
-static int simtec_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- int ret;
-
- /* Set the CODEC as the bus clock master, I2S */
- ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM);
- if (ret) {
- pr_err("%s: failed set cpu dai format\n", __func__);
- return ret;
- }
-
- /* Set the CODEC as the bus clock master */
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM);
- if (ret) {
- pr_err("%s: failed set codec dai format\n", __func__);
- return ret;
- }
-
- ret = snd_soc_dai_set_sysclk(codec_dai, 0,
- CODEC_CLOCK, SND_SOC_CLOCK_IN);
- if (ret) {
- pr_err( "%s: failed setting codec sysclk\n", __func__);
- return ret;
- }
-
- if (pdata->use_mpllin) {
- ret = snd_soc_dai_set_sysclk(cpu_dai, S3C24XX_CLKSRC_MPLL,
- 0, SND_SOC_CLOCK_OUT);
-
- if (ret) {
- pr_err("%s: failed to set MPLLin as clksrc\n",
- __func__);
- return ret;
- }
- }
-
- if (pdata->output_cdclk) {
- int cdclk_scale;
-
- cdclk_scale = clk_get_rate(xtal_clk) / CODEC_CLOCK;
- cdclk_scale--;
-
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
- cdclk_scale);
- }
-
- return 0;
-}
-
-static int simtec_call_startup(struct s3c24xx_audio_simtec_pdata *pd)
-{
- /* call any board supplied startup code, this currently only
- * covers the bast/vr1000 which have a CPLD in the way of the
- * LRCLK */
- if (pd->startup)
- pd->startup();
-
- return 0;
-}
-
-static struct snd_soc_ops simtec_snd_ops = {
- .hw_params = simtec_hw_params,
-};
-
-/**
- * attach_gpio_amp - get and configure the necessary gpios
- * @dev: The device we're probing.
- * @pd: The platform data supplied by the board.
- *
- * If there is a GPIO based amplifier attached to the board, claim
- * the necessary GPIO lines for it, and set default values.
- */
-static int attach_gpio_amp(struct device *dev,
- struct s3c24xx_audio_simtec_pdata *pd)
-{
- int ret;
-
- /* attach gpio amp gain (if any) */
- if (pdata->amp_gain[0] > 0) {
- ret = gpio_request(pd->amp_gain[0], "gpio-amp-gain0");
- if (ret) {
- dev_err(dev, "cannot get amp gpio gain0\n");
- return ret;
- }
-
- ret = gpio_request(pd->amp_gain[1], "gpio-amp-gain1");
- if (ret) {
- dev_err(dev, "cannot get amp gpio gain1\n");
- gpio_free(pdata->amp_gain[0]);
- return ret;
- }
-
- gpio_direction_output(pd->amp_gain[0], 0);
- gpio_direction_output(pd->amp_gain[1], 0);
- }
-
- /* note, currently we assume GPA0 isn't valid amp */
- if (pdata->amp_gpio > 0) {
- ret = gpio_request(pd->amp_gpio, "gpio-amp");
- if (ret) {
- dev_err(dev, "cannot get amp gpio %d (%d)\n",
- pd->amp_gpio, ret);
- goto err_amp;
- }
-
- /* set the amp off at startup */
- spk_unmute_state(0);
- }
-
- return 0;
-
-err_amp:
- if (pd->amp_gain[0] > 0) {
- gpio_free(pd->amp_gain[0]);
- gpio_free(pd->amp_gain[1]);
- }
-
- return ret;
-}
-
-static void detach_gpio_amp(struct s3c24xx_audio_simtec_pdata *pd)
-{
- if (pd->amp_gain[0] > 0) {
- gpio_free(pd->amp_gain[0]);
- gpio_free(pd->amp_gain[1]);
- }
-
- if (pd->amp_gpio > 0)
- gpio_free(pd->amp_gpio);
-}
-
-#ifdef CONFIG_PM
-int simtec_audio_resume(struct device *dev)
-{
- simtec_call_startup(pdata);
- return 0;
-}
-
-const struct dev_pm_ops simtec_audio_pmops = {
- .resume = simtec_audio_resume,
-};
-EXPORT_SYMBOL_GPL(simtec_audio_pmops);
-#endif
-
-int __devinit simtec_audio_core_probe(struct platform_device *pdev,
- struct snd_soc_card *card)
-{
- struct platform_device *snd_dev;
- int ret;
-
- card->dai_link->ops = &simtec_snd_ops;
-
- pdata = pdev->dev.platform_data;
- if (!pdata) {
- dev_err(&pdev->dev, "no platform data supplied\n");
- return -EINVAL;
- }
-
- simtec_call_startup(pdata);
-
- xtal_clk = clk_get(&pdev->dev, "xtal");
- if (IS_ERR(xtal_clk)) {
- dev_err(&pdev->dev, "could not get clkout0\n");
- return -EINVAL;
- }
-
- dev_info(&pdev->dev, "xtal rate is %ld\n", clk_get_rate(xtal_clk));
-
- ret = attach_gpio_amp(&pdev->dev, pdata);
- if (ret)
- goto err_clk;
-
- snd_dev = platform_device_alloc("soc-audio", -1);
- if (!snd_dev) {
- dev_err(&pdev->dev, "failed to alloc soc-audio devicec\n");
- ret = -ENOMEM;
- goto err_gpio;
- }
-
- platform_set_drvdata(snd_dev, card);
-
- ret = platform_device_add(snd_dev);
- if (ret) {
- dev_err(&pdev->dev, "failed to add soc-audio dev\n");
- goto err_pdev;
- }
-
- platform_set_drvdata(pdev, snd_dev);
- return 0;
-
-err_pdev:
- platform_device_put(snd_dev);
-
-err_gpio:
- detach_gpio_amp(pdata);
-
-err_clk:
- clk_put(xtal_clk);
- return ret;
-}
-EXPORT_SYMBOL_GPL(simtec_audio_core_probe);
-
-int __devexit simtec_audio_remove(struct platform_device *pdev)
-{
- struct platform_device *snd_dev = platform_get_drvdata(pdev);
-
- platform_device_unregister(snd_dev);
-
- detach_gpio_amp(pdata);
- clk_put(xtal_clk);
- return 0;
-}
-EXPORT_SYMBOL_GPL(simtec_audio_remove);
-
-MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("ALSA SoC Simtec Audio common support");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* sound/soc/s3c24xx/s3c24xx_simtec.h
- *
- * Copyright 2009 Simtec Electronics
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-extern void simtec_audio_init(struct snd_soc_pcm_runtime *rtd);
-
-extern int simtec_audio_core_probe(struct platform_device *pdev,
- struct snd_soc_card *card);
-
-extern int simtec_audio_remove(struct platform_device *pdev);
-
-#ifdef CONFIG_PM
-extern const struct dev_pm_ops simtec_audio_pmops;
-#define simtec_audio_pm &simtec_audio_pmops
-#else
-#define simtec_audio_pm NULL
-#endif
+++ /dev/null
-/* sound/soc/s3c24xx/s3c24xx_simtec_hermes.c
- *
- * Copyright 2009 Simtec Electronics
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/module.h>
-#include <linux/clk.h>
-#include <linux/platform_device.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-#include <plat/audio-simtec.h>
-
-#include "dma.h"
-#include "s3c24xx-i2s.h"
-#include "s3c24xx_simtec.h"
-
-#include "../codecs/tlv320aic3x.h"
-
-static const struct snd_soc_dapm_widget dapm_widgets[] = {
- SND_SOC_DAPM_LINE("GSM Out", NULL),
- SND_SOC_DAPM_LINE("GSM In", NULL),
- SND_SOC_DAPM_LINE("Line In", NULL),
- SND_SOC_DAPM_LINE("Line Out", NULL),
- SND_SOC_DAPM_LINE("ZV", NULL),
- SND_SOC_DAPM_MIC("Mic Jack", NULL),
- SND_SOC_DAPM_HP("Headphone Jack", NULL),
-};
-
-static const struct snd_soc_dapm_route base_map[] = {
- /* Headphone connected to HP{L,R}OUT and HP{L,R}COM */
-
- { "Headphone Jack", NULL, "HPLOUT" },
- { "Headphone Jack", NULL, "HPLCOM" },
- { "Headphone Jack", NULL, "HPROUT" },
- { "Headphone Jack", NULL, "HPRCOM" },
-
- /* ZV connected to Line1 */
-
- { "LINE1L", NULL, "ZV" },
- { "LINE1R", NULL, "ZV" },
-
- /* Line In connected to Line2 */
-
- { "LINE2L", NULL, "Line In" },
- { "LINE2R", NULL, "Line In" },
-
- /* Microphone connected to MIC3R and MIC_BIAS */
-
- { "MIC3L", NULL, "Mic Jack" },
-
- /* GSM connected to MONO_LOUT and MIC3L (in) */
-
- { "GSM Out", NULL, "MONO_LOUT" },
- { "MIC3L", NULL, "GSM In" },
-
- /* Speaker is connected to LINEOUT{LN,LP,RN,RP}, however we are
- * not using the DAPM to power it up and down as there it makes
- * a click when powering up. */
-};
-
-/**
- * simtec_hermes_init - initialise and add controls
- * @codec; The codec instance to attach to.
- *
- * Attach our controls and configure the necessary codec
- * mappings for our sound card instance.
-*/
-static int simtec_hermes_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
-
- snd_soc_dapm_new_controls(dapm, dapm_widgets,
- ARRAY_SIZE(dapm_widgets));
-
- snd_soc_dapm_add_routes(dapm, base_map, ARRAY_SIZE(base_map));
-
- snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
- snd_soc_dapm_enable_pin(dapm, "Line In");
- snd_soc_dapm_enable_pin(dapm, "Line Out");
- snd_soc_dapm_enable_pin(dapm, "Mic Jack");
-
- simtec_audio_init(rtd);
- snd_soc_dapm_sync(dapm);
-
- return 0;
-}
-
-static struct snd_soc_dai_link simtec_dai_aic33 = {
- .name = "tlv320aic33",
- .stream_name = "TLV320AIC33",
- .codec_name = "tlv320aic3x-codec.0-0x1a",
- .cpu_dai_name = "s3c24xx-i2s",
- .codec_dai_name = "tlv320aic3x-hifi",
- .platform_name = "samsung-audio",
- .init = simtec_hermes_init,
-};
-
-/* simtec audio machine driver */
-static struct snd_soc_card snd_soc_machine_simtec_aic33 = {
- .name = "Simtec-Hermes",
- .dai_link = &simtec_dai_aic33,
- .num_links = 1,
-};
-
-static int __devinit simtec_audio_hermes_probe(struct platform_device *pd)
-{
- dev_info(&pd->dev, "probing....\n");
- return simtec_audio_core_probe(pd, &snd_soc_machine_simtec_aic33);
-}
-
-static struct platform_driver simtec_audio_hermes_platdrv = {
- .driver = {
- .owner = THIS_MODULE,
- .name = "s3c24xx-simtec-hermes-snd",
- .pm = simtec_audio_pm,
- },
- .probe = simtec_audio_hermes_probe,
- .remove = __devexit_p(simtec_audio_remove),
-};
-
-MODULE_ALIAS("platform:s3c24xx-simtec-hermes-snd");
-
-static int __init simtec_hermes_modinit(void)
-{
- return platform_driver_register(&simtec_audio_hermes_platdrv);
-}
-
-static void __exit simtec_hermes_modexit(void)
-{
- platform_driver_unregister(&simtec_audio_hermes_platdrv);
-}
-
-module_init(simtec_hermes_modinit);
-module_exit(simtec_hermes_modexit);
-
-MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("ALSA SoC Simtec Audio support");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c
- *
- * Copyright 2009 Simtec Electronics
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/module.h>
-#include <linux/clk.h>
-#include <linux/platform_device.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-#include <plat/audio-simtec.h>
-
-#include "dma.h"
-#include "s3c24xx-i2s.h"
-#include "s3c24xx_simtec.h"
-
-#include "../codecs/tlv320aic23.h"
-
-/* supported machines:
- *
- * Machine Connections AMP
- * ------- ----------- ---
- * BAST MIC, HPOUT, LOUT, LIN TPA2001D1 (HPOUTL,R) (gain hardwired)
- * VR1000 HPOUT, LIN None
- * VR2000 LIN, LOUT, MIC, HP LM4871 (HPOUTL,R)
- * DePicture LIN, LOUT, MIC, HP LM4871 (HPOUTL,R)
- * Anubis LIN, LOUT, MIC, HP TPA2001D1 (HPOUTL,R)
- */
-
-static const struct snd_soc_dapm_widget dapm_widgets[] = {
- SND_SOC_DAPM_HP("Headphone Jack", NULL),
- SND_SOC_DAPM_LINE("Line In", NULL),
- SND_SOC_DAPM_LINE("Line Out", NULL),
- SND_SOC_DAPM_MIC("Mic Jack", NULL),
-};
-
-static const struct snd_soc_dapm_route base_map[] = {
- { "Headphone Jack", NULL, "LHPOUT"},
- { "Headphone Jack", NULL, "RHPOUT"},
-
- { "Line Out", NULL, "LOUT" },
- { "Line Out", NULL, "ROUT" },
-
- { "LLINEIN", NULL, "Line In"},
- { "RLINEIN", NULL, "Line In"},
-
- { "MICIN", NULL, "Mic Jack"},
-};
-
-/**
- * simtec_tlv320aic23_init - initialise and add controls
- * @codec; The codec instance to attach to.
- *
- * Attach our controls and configure the necessary codec
- * mappings for our sound card instance.
-*/
-static int simtec_tlv320aic23_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
-
- snd_soc_dapm_new_controls(dapm, dapm_widgets,
- ARRAY_SIZE(dapm_widgets));
-
- snd_soc_dapm_add_routes(dapm, base_map, ARRAY_SIZE(base_map));
-
- snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
- snd_soc_dapm_enable_pin(dapm, "Line In");
- snd_soc_dapm_enable_pin(dapm, "Line Out");
- snd_soc_dapm_enable_pin(dapm, "Mic Jack");
-
- simtec_audio_init(rtd);
- snd_soc_dapm_sync(dapm);
-
- return 0;
-}
-
-static struct snd_soc_dai_link simtec_dai_aic23 = {
- .name = "tlv320aic23",
- .stream_name = "TLV320AIC23",
- .codec_name = "tlv320aic3x-codec.0-0x1a",
- .cpu_dai_name = "s3c24xx-i2s",
- .codec_dai_name = "tlv320aic3x-hifi",
- .platform_name = "samsung-audio",
- .init = simtec_tlv320aic23_init,
-};
-
-/* simtec audio machine driver */
-static struct snd_soc_card snd_soc_machine_simtec_aic23 = {
- .name = "Simtec",
- .dai_link = &simtec_dai_aic23,
- .num_links = 1,
-};
-
-static int __devinit simtec_audio_tlv320aic23_probe(struct platform_device *pd)
-{
- return simtec_audio_core_probe(pd, &snd_soc_machine_simtec_aic23);
-}
-
-static struct platform_driver simtec_audio_tlv320aic23_platdrv = {
- .driver = {
- .owner = THIS_MODULE,
- .name = "s3c24xx-simtec-tlv320aic23",
- .pm = simtec_audio_pm,
- },
- .probe = simtec_audio_tlv320aic23_probe,
- .remove = __devexit_p(simtec_audio_remove),
-};
-
-MODULE_ALIAS("platform:s3c24xx-simtec-tlv320aic23");
-
-static int __init simtec_tlv320aic23_modinit(void)
-{
- return platform_driver_register(&simtec_audio_tlv320aic23_platdrv);
-}
-
-static void __exit simtec_tlv320aic23_modexit(void)
-{
- platform_driver_unregister(&simtec_audio_tlv320aic23_platdrv);
-}
-
-module_init(simtec_tlv320aic23_modinit);
-module_exit(simtec_tlv320aic23_modexit);
-
-MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("ALSA SoC Simtec Audio support");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Modifications by Christian Pellegrin <chripell@evolware.org>
- *
- * s3c24xx_uda134x.c -- S3C24XX_UDA134X ALSA SoC Audio board driver
- *
- * Copyright 2007 Dension Audio Systems Ltd.
- * Author: Zoltan Devai
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/clk.h>
-#include <linux/mutex.h>
-#include <linux/gpio.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-#include <sound/s3c24xx_uda134x.h>
-#include <sound/uda134x.h>
-
-#include <plat/regs-iis.h>
-
-#include "dma.h"
-#include "s3c24xx-i2s.h"
-#include "../codecs/uda134x.h"
-
-
-/* #define ENFORCE_RATES 1 */
-/*
- Unfortunately the S3C24XX in master mode has a limited capacity of
- generating the clock for the codec. If you define this only rates
- that are really available will be enforced. But be careful, most
- user level application just want the usual sampling frequencies (8,
- 11.025, 22.050, 44.1 kHz) and anyway resampling is a costly
- operation for embedded systems. So if you aren't very lucky or your
- hardware engineer wasn't very forward-looking it's better to leave
- this undefined. If you do so an approximate value for the requested
- sampling rate in the range -/+ 5% will be chosen. If this in not
- possible an error will be returned.
-*/
-
-static struct clk *xtal;
-static struct clk *pclk;
-/* this is need because we don't have a place where to keep the
- * pointers to the clocks in each substream. We get the clocks only
- * when we are actually using them so we don't block stuff like
- * frequency change or oscillator power-off */
-static int clk_users;
-static DEFINE_MUTEX(clk_lock);
-
-static unsigned int rates[33 * 2];
-#ifdef ENFORCE_RATES
-static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
- .count = ARRAY_SIZE(rates),
- .list = rates,
- .mask = 0,
-};
-#endif
-
-static struct platform_device *s3c24xx_uda134x_snd_device;
-
-static int s3c24xx_uda134x_startup(struct snd_pcm_substream *substream)
-{
- int ret = 0;
-#ifdef ENFORCE_RATES
- struct snd_pcm_runtime *runtime = substream->runtime;
-#endif
-
- mutex_lock(&clk_lock);
- pr_debug("%s %d\n", __func__, clk_users);
- if (clk_users == 0) {
- xtal = clk_get(&s3c24xx_uda134x_snd_device->dev, "xtal");
- if (!xtal) {
- printk(KERN_ERR "%s cannot get xtal\n", __func__);
- ret = -EBUSY;
- } else {
- pclk = clk_get(&s3c24xx_uda134x_snd_device->dev,
- "pclk");
- if (!pclk) {
- printk(KERN_ERR "%s cannot get pclk\n",
- __func__);
- clk_put(xtal);
- ret = -EBUSY;
- }
- }
- if (!ret) {
- int i, j;
-
- for (i = 0; i < 2; i++) {
- int fs = i ? 256 : 384;
-
- rates[i*33] = clk_get_rate(xtal) / fs;
- for (j = 1; j < 33; j++)
- rates[i*33 + j] = clk_get_rate(pclk) /
- (j * fs);
- }
- }
- }
- clk_users += 1;
- mutex_unlock(&clk_lock);
- if (!ret) {
-#ifdef ENFORCE_RATES
- ret = snd_pcm_hw_constraint_list(runtime, 0,
- SNDRV_PCM_HW_PARAM_RATE,
- &hw_constraints_rates);
- if (ret < 0)
- printk(KERN_ERR "%s cannot set constraints\n",
- __func__);
-#endif
- }
- return ret;
-}
-
-static void s3c24xx_uda134x_shutdown(struct snd_pcm_substream *substream)
-{
- mutex_lock(&clk_lock);
- pr_debug("%s %d\n", __func__, clk_users);
- clk_users -= 1;
- if (clk_users == 0) {
- clk_put(xtal);
- xtal = NULL;
- clk_put(pclk);
- pclk = NULL;
- }
- mutex_unlock(&clk_lock);
-}
-
-static int s3c24xx_uda134x_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- unsigned int clk = 0;
- int ret = 0;
- int clk_source, fs_mode;
- unsigned long rate = params_rate(params);
- long err, cerr;
- unsigned int div;
- int i, bi;
-
- err = 999999;
- bi = 0;
- for (i = 0; i < 2*33; i++) {
- cerr = rates[i] - rate;
- if (cerr < 0)
- cerr = -cerr;
- if (cerr < err) {
- err = cerr;
- bi = i;
- }
- }
- if (bi / 33 == 1)
- fs_mode = S3C2410_IISMOD_256FS;
- else
- fs_mode = S3C2410_IISMOD_384FS;
- if (bi % 33 == 0) {
- clk_source = S3C24XX_CLKSRC_MPLL;
- div = 1;
- } else {
- clk_source = S3C24XX_CLKSRC_PCLK;
- div = bi % 33;
- }
- pr_debug("%s desired rate %lu, %d\n", __func__, rate, bi);
-
- clk = (fs_mode == S3C2410_IISMOD_384FS ? 384 : 256) * rate;
- pr_debug("%s will use: %s %s %d sysclk %d err %ld\n", __func__,
- fs_mode == S3C2410_IISMOD_384FS ? "384FS" : "256FS",
- clk_source == S3C24XX_CLKSRC_MPLL ? "MPLLin" : "PCLK",
- div, clk, err);
-
- if ((err * 100 / rate) > 5) {
- printk(KERN_ERR "S3C24XX_UDA134X: effective frequency "
- "too different from desired (%ld%%)\n",
- err * 100 / rate);
- return -EINVAL;
- }
-
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
- if (ret < 0)
- return ret;
-
- ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
- if (ret < 0)
- return ret;
-
- ret = snd_soc_dai_set_sysclk(cpu_dai, clk_source , clk,
- SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK, fs_mode);
- if (ret < 0)
- return ret;
-
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_BCLK,
- S3C2410_IISMOD_32FS);
- if (ret < 0)
- return ret;
-
- ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
- S3C24XX_PRESCALE(div, div));
- if (ret < 0)
- return ret;
-
- /* set the codec system clock for DAC and ADC */
- ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk,
- SND_SOC_CLOCK_OUT);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static struct snd_soc_ops s3c24xx_uda134x_ops = {
- .startup = s3c24xx_uda134x_startup,
- .shutdown = s3c24xx_uda134x_shutdown,
- .hw_params = s3c24xx_uda134x_hw_params,
-};
-
-static struct snd_soc_dai_link s3c24xx_uda134x_dai_link = {
- .name = "UDA134X",
- .stream_name = "UDA134X",
- .codec_name = "uda134x-hifi",
- .codec_dai_name = "uda134x-hifi",
- .cpu_dai_name = "s3c24xx-i2s",
- .ops = &s3c24xx_uda134x_ops,
- .platform_name = "samsung-audio",
-};
-
-static struct snd_soc_card snd_soc_s3c24xx_uda134x = {
- .name = "S3C24XX_UDA134X",
- .dai_link = &s3c24xx_uda134x_dai_link,
- .num_links = 1,
-};
-
-static struct s3c24xx_uda134x_platform_data *s3c24xx_uda134x_l3_pins;
-
-static void setdat(int v)
-{
- gpio_set_value(s3c24xx_uda134x_l3_pins->l3_data, v > 0);
-}
-
-static void setclk(int v)
-{
- gpio_set_value(s3c24xx_uda134x_l3_pins->l3_clk, v > 0);
-}
-
-static void setmode(int v)
-{
- gpio_set_value(s3c24xx_uda134x_l3_pins->l3_mode, v > 0);
-}
-
-/* FIXME - This must be codec platform data but in which board file ?? */
-static struct uda134x_platform_data s3c24xx_uda134x = {
- .l3 = {
- .setdat = setdat,
- .setclk = setclk,
- .setmode = setmode,
- .data_hold = 1,
- .data_setup = 1,
- .clock_high = 1,
- .mode_hold = 1,
- .mode = 1,
- .mode_setup = 1,
- },
-};
-
-static int s3c24xx_uda134x_setup_pin(int pin, char *fun)
-{
- if (gpio_request(pin, "s3c24xx_uda134x") < 0) {
- printk(KERN_ERR "S3C24XX_UDA134X SoC Audio: "
- "l3 %s pin already in use", fun);
- return -EBUSY;
- }
- gpio_direction_output(pin, 0);
- return 0;
-}
-
-static int s3c24xx_uda134x_probe(struct platform_device *pdev)
-{
- int ret;
-
- printk(KERN_INFO "S3C24XX_UDA134X SoC Audio driver\n");
-
- s3c24xx_uda134x_l3_pins = pdev->dev.platform_data;
- if (s3c24xx_uda134x_l3_pins == NULL) {
- printk(KERN_ERR "S3C24XX_UDA134X SoC Audio: "
- "unable to find platform data\n");
- return -ENODEV;
- }
- s3c24xx_uda134x.power = s3c24xx_uda134x_l3_pins->power;
- s3c24xx_uda134x.model = s3c24xx_uda134x_l3_pins->model;
-
- if (s3c24xx_uda134x_setup_pin(s3c24xx_uda134x_l3_pins->l3_data,
- "data") < 0)
- return -EBUSY;
- if (s3c24xx_uda134x_setup_pin(s3c24xx_uda134x_l3_pins->l3_clk,
- "clk") < 0) {
- gpio_free(s3c24xx_uda134x_l3_pins->l3_data);
- return -EBUSY;
- }
- if (s3c24xx_uda134x_setup_pin(s3c24xx_uda134x_l3_pins->l3_mode,
- "mode") < 0) {
- gpio_free(s3c24xx_uda134x_l3_pins->l3_data);
- gpio_free(s3c24xx_uda134x_l3_pins->l3_clk);
- return -EBUSY;
- }
-
- s3c24xx_uda134x_snd_device = platform_device_alloc("soc-audio", -1);
- if (!s3c24xx_uda134x_snd_device) {
- printk(KERN_ERR "S3C24XX_UDA134X SoC Audio: "
- "Unable to register\n");
- return -ENOMEM;
- }
-
- platform_set_drvdata(s3c24xx_uda134x_snd_device,
- &snd_soc_s3c24xx_uda134x);
- ret = platform_device_add(s3c24xx_uda134x_snd_device);
- if (ret) {
- printk(KERN_ERR "S3C24XX_UDA134X SoC Audio: Unable to add\n");
- platform_device_put(s3c24xx_uda134x_snd_device);
- }
-
- return ret;
-}
-
-static int s3c24xx_uda134x_remove(struct platform_device *pdev)
-{
- platform_device_unregister(s3c24xx_uda134x_snd_device);
- gpio_free(s3c24xx_uda134x_l3_pins->l3_data);
- gpio_free(s3c24xx_uda134x_l3_pins->l3_clk);
- gpio_free(s3c24xx_uda134x_l3_pins->l3_mode);
- return 0;
-}
-
-static struct platform_driver s3c24xx_uda134x_driver = {
- .probe = s3c24xx_uda134x_probe,
- .remove = s3c24xx_uda134x_remove,
- .driver = {
- .name = "s3c24xx_uda134x",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init s3c24xx_uda134x_init(void)
-{
- return platform_driver_register(&s3c24xx_uda134x_driver);
-}
-
-static void __exit s3c24xx_uda134x_exit(void)
-{
- platform_driver_unregister(&s3c24xx_uda134x_driver);
-}
-
-
-module_init(s3c24xx_uda134x_init);
-module_exit(s3c24xx_uda134x_exit);
-
-MODULE_AUTHOR("Zoltan Devai, Christian Pellegrin <chripell@evolware.org>");
-MODULE_DESCRIPTION("S3C24XX_UDA134X ALSA SoC audio driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* sound/soc/s3c24xx/smartq_wm8987.c
- *
- * Copyright 2010 Maurus Cuelenaere <mcuelenaere@gmail.com>
- *
- * Based on smdk6410_wm8987.c
- * Copyright 2007 Wolfson Microelectronics PLC. - linux@wolfsonmicro.com
- * Graeme Gregory - graeme.gregory@wolfsonmicro.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-#include <sound/jack.h>
-
-#include <asm/mach-types.h>
-
-#include "dma.h"
-#include "i2s.h"
-
-#include "../codecs/wm8750.h"
-
-/*
- * WM8987 is register compatible with WM8750, so using that as base driver.
- */
-
-static struct snd_soc_card snd_soc_smartq;
-
-static int smartq_hifi_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
- unsigned int clk = 0;
- int ret;
-
- switch (params_rate(params)) {
- case 8000:
- case 16000:
- case 32000:
- case 48000:
- case 96000:
- clk = 12288000;
- break;
- case 11025:
- case 22050:
- case 44100:
- case 88200:
- clk = 11289600;
- break;
- }
-
- /* set codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBS_CFS);
- if (ret < 0)
- return ret;
-
- /* set cpu DAI configuration */
- ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBS_CFS);
- if (ret < 0)
- return ret;
-
- /* Use PCLK for I2S signal generation */
- ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
- 0, SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- /* Gate the RCLK output on PAD */
- ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
- 0, SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- /* set the codec system clock for DAC and ADC */
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
- SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-/*
- * SmartQ WM8987 HiFi DAI operations.
- */
-static struct snd_soc_ops smartq_hifi_ops = {
- .hw_params = smartq_hifi_hw_params,
-};
-
-static struct snd_soc_jack smartq_jack;
-
-static struct snd_soc_jack_pin smartq_jack_pins[] = {
- /* Disable speaker when headphone is plugged in */
- {
- .pin = "Internal Speaker",
- .mask = SND_JACK_HEADPHONE,
- },
-};
-
-static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
- {
- .gpio = S3C64XX_GPL(12),
- .name = "headphone detect",
- .report = SND_JACK_HEADPHONE,
- .debounce_time = 200,
- },
-};
-
-static const struct snd_kcontrol_new wm8987_smartq_controls[] = {
- SOC_DAPM_PIN_SWITCH("Internal Speaker"),
- SOC_DAPM_PIN_SWITCH("Headphone Jack"),
- SOC_DAPM_PIN_SWITCH("Internal Mic"),
-};
-
-static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
- struct snd_kcontrol *k,
- int event)
-{
- gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event));
-
- return 0;
-}
-
-static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = {
- SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event),
- SND_SOC_DAPM_HP("Headphone Jack", NULL),
- SND_SOC_DAPM_MIC("Internal Mic", NULL),
-};
-
-static const struct snd_soc_dapm_route audio_map[] = {
- {"Headphone Jack", NULL, "LOUT2"},
- {"Headphone Jack", NULL, "ROUT2"},
-
- {"Internal Speaker", NULL, "LOUT2"},
- {"Internal Speaker", NULL, "ROUT2"},
-
- {"Mic Bias", NULL, "Internal Mic"},
- {"LINPUT2", NULL, "Mic Bias"},
-};
-
-static int smartq_wm8987_init(struct snd_soc_codec *codec)
-{
- struct snd_soc_dapm_context *dapm = &codec->dapm;
- int err = 0;
-
- /* Add SmartQ specific widgets */
- snd_soc_dapm_new_controls(dapm, wm8987_dapm_widgets,
- ARRAY_SIZE(wm8987_dapm_widgets));
-
- /* add SmartQ specific controls */
- err = snd_soc_add_controls(codec, wm8987_smartq_controls,
- ARRAY_SIZE(wm8987_smartq_controls));
-
- if (err < 0)
- return err;
-
- /* setup SmartQ specific audio path */
- snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
-
- /* set endpoints to not connected */
- snd_soc_dapm_nc_pin(dapm, "LINPUT1");
- snd_soc_dapm_nc_pin(dapm, "RINPUT1");
- snd_soc_dapm_nc_pin(dapm, "OUT3");
- snd_soc_dapm_nc_pin(dapm, "ROUT1");
-
- /* set endpoints to default off mode */
- snd_soc_dapm_enable_pin(dapm, "Internal Speaker");
- snd_soc_dapm_enable_pin(dapm, "Internal Mic");
- snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
-
- err = snd_soc_dapm_sync(dapm);
- if (err)
- return err;
-
- /* Headphone jack detection */
- err = snd_soc_jack_new(&snd_soc_smartq, "Headphone Jack",
- SND_JACK_HEADPHONE, &smartq_jack);
- if (err)
- return err;
-
- err = snd_soc_jack_add_pins(&smartq_jack, ARRAY_SIZE(smartq_jack_pins),
- smartq_jack_pins);
- if (err)
- return err;
-
- err = snd_soc_jack_add_gpios(&smartq_jack,
- ARRAY_SIZE(smartq_jack_gpios),
- smartq_jack_gpios);
-
- return err;
-}
-
-static struct snd_soc_dai_link smartq_dai[] = {
- {
- .name = "wm8987",
- .stream_name = "SmartQ Hi-Fi",
- .cpu_dai_name = "samsung-i2s.0",
- .codec_dai_name = "wm8750-hifi",
- .platform_name = "samsung-audio",
- .codec_name = "wm8750-codec.0-0x1a",
- .init = smartq_wm8987_init,
- .ops = &smartq_hifi_ops,
- },
-};
-
-static struct snd_soc_card snd_soc_smartq = {
- .name = "SmartQ",
- .dai_link = smartq_dai,
- .num_links = ARRAY_SIZE(smartq_dai),
-};
-
-static struct platform_device *smartq_snd_device;
-
-static int __init smartq_init(void)
-{
- int ret;
-
- if (!machine_is_smartq7() && !machine_is_smartq5()) {
- pr_info("Only SmartQ is supported by this ASoC driver\n");
- return -ENODEV;
- }
-
- smartq_snd_device = platform_device_alloc("soc-audio", -1);
- if (!smartq_snd_device)
- return -ENOMEM;
-
- platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);
-
- ret = platform_device_add(smartq_snd_device);
- if (ret) {
- platform_device_put(smartq_snd_device);
- return ret;
- }
-
- /* Initialise GPIOs used by amplifiers */
- ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
- if (ret) {
- dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n");
- goto err_unregister_device;
- }
-
- /* Disable amplifiers */
- ret = gpio_direction_output(S3C64XX_GPK(12), 1);
- if (ret) {
- dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
- goto err_free_gpio_amp_shut;
- }
-
- return 0;
-
-err_free_gpio_amp_shut:
- gpio_free(S3C64XX_GPK(12));
-err_unregister_device:
- platform_device_unregister(smartq_snd_device);
-
- return ret;
-}
-
-static void __exit smartq_exit(void)
-{
- snd_soc_jack_free_gpios(&smartq_jack, ARRAY_SIZE(smartq_jack_gpios),
- smartq_jack_gpios);
-
- platform_device_unregister(smartq_snd_device);
-}
-
-module_init(smartq_init);
-module_exit(smartq_exit);
-
-/* Module information */
-MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
-MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * smdk2443_wm9710.c -- SoC audio for smdk2443
- *
- * Copyright 2007 Wolfson Microelectronics PLC.
- * Author: Graeme Gregory
- * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/device.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-#include "dma.h"
-#include "ac97.h"
-
-static struct snd_soc_card smdk2443;
-
-static struct snd_soc_dai_link smdk2443_dai[] = {
-{
- .name = "AC97",
- .stream_name = "AC97 HiFi",
- .cpu_dai_name = "samsung-ac97",
- .codec_dai_name = "ac97-hifi",
- .codec_name = "ac97-codec",
- .platform_name = "samsung-audio",
-},
-};
-
-static struct snd_soc_card smdk2443 = {
- .name = "SMDK2443",
- .dai_link = smdk2443_dai,
- .num_links = ARRAY_SIZE(smdk2443_dai),
-};
-
-static struct platform_device *smdk2443_snd_ac97_device;
-
-static int __init smdk2443_init(void)
-{
- int ret;
-
- smdk2443_snd_ac97_device = platform_device_alloc("soc-audio", -1);
- if (!smdk2443_snd_ac97_device)
- return -ENOMEM;
-
- platform_set_drvdata(smdk2443_snd_ac97_device, &smdk2443);
- ret = platform_device_add(smdk2443_snd_ac97_device);
-
- if (ret)
- platform_device_put(smdk2443_snd_ac97_device);
-
- return ret;
-}
-
-static void __exit smdk2443_exit(void)
-{
- platform_device_unregister(smdk2443_snd_ac97_device);
-}
-
-module_init(smdk2443_init);
-module_exit(smdk2443_exit);
-
-/* Module information */
-MODULE_AUTHOR("Graeme Gregory, graeme.gregory@wolfsonmicro.com, www.wolfsonmicro.com");
-MODULE_DESCRIPTION("ALSA SoC WM9710 SMDK2443");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * smdk_spdif.c -- S/PDIF audio for SMDK
- *
- * Copyright 2010 Samsung Electronics Co. Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/clk.h>
-
-#include <plat/devs.h>
-
-#include <sound/soc.h>
-
-#include "dma.h"
-#include "spdif.h"
-
-/* Audio clock settings are belonged to board specific part. Every
- * board can set audio source clock setting which is matched with H/W
- * like this function-'set_audio_clock_heirachy'.
- */
-static int set_audio_clock_heirachy(struct platform_device *pdev)
-{
- struct clk *fout_epll, *mout_epll, *sclk_audio0, *sclk_spdif;
- int ret;
-
- fout_epll = clk_get(NULL, "fout_epll");
- if (IS_ERR(fout_epll)) {
- printk(KERN_WARNING "%s: Cannot find fout_epll.\n",
- __func__);
- return -EINVAL;
- }
-
- mout_epll = clk_get(NULL, "mout_epll");
- if (IS_ERR(mout_epll)) {
- printk(KERN_WARNING "%s: Cannot find mout_epll.\n",
- __func__);
- ret = -EINVAL;
- goto out1;
- }
-
- sclk_audio0 = clk_get(&pdev->dev, "sclk_audio");
- if (IS_ERR(sclk_audio0)) {
- printk(KERN_WARNING "%s: Cannot find sclk_audio.\n",
- __func__);
- ret = -EINVAL;
- goto out2;
- }
-
- sclk_spdif = clk_get(NULL, "sclk_spdif");
- if (IS_ERR(sclk_spdif)) {
- printk(KERN_WARNING "%s: Cannot find sclk_spdif.\n",
- __func__);
- ret = -EINVAL;
- goto out3;
- }
-
- /* Set audio clock heirachy for S/PDIF */
- clk_set_parent(mout_epll, fout_epll);
- clk_set_parent(sclk_audio0, mout_epll);
- clk_set_parent(sclk_spdif, sclk_audio0);
-
- clk_put(sclk_spdif);
-out3:
- clk_put(sclk_audio0);
-out2:
- clk_put(mout_epll);
-out1:
- clk_put(fout_epll);
-
- return ret;
-}
-
-/* We should haved to set clock directly on this part because of clock
- * scheme of Samsudng SoCs did not support to set rates from abstrct
- * clock of it's heirachy.
- */
-static int set_audio_clock_rate(unsigned long epll_rate,
- unsigned long audio_rate)
-{
- struct clk *fout_epll, *sclk_spdif;
-
- fout_epll = clk_get(NULL, "fout_epll");
- if (IS_ERR(fout_epll)) {
- printk(KERN_ERR "%s: failed to get fout_epll\n", __func__);
- return -ENOENT;
- }
-
- clk_set_rate(fout_epll, epll_rate);
- clk_put(fout_epll);
-
- sclk_spdif = clk_get(NULL, "sclk_spdif");
- if (IS_ERR(sclk_spdif)) {
- printk(KERN_ERR "%s: failed to get sclk_spdif\n", __func__);
- return -ENOENT;
- }
-
- clk_set_rate(sclk_spdif, audio_rate);
- clk_put(sclk_spdif);
-
- return 0;
-}
-
-static int smdk_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- unsigned long pll_out, rclk_rate;
- int ret, ratio;
-
- switch (params_rate(params)) {
- case 44100:
- pll_out = 45158400;
- break;
- case 32000:
- case 48000:
- case 96000:
- pll_out = 49152000;
- break;
- default:
- return -EINVAL;
- }
-
- /* Setting ratio to 512fs helps to use S/PDIF with HDMI without
- * modify S/PDIF ASoC machine driver.
- */
- ratio = 512;
- rclk_rate = params_rate(params) * ratio;
-
- /* Set audio source clock rates */
- ret = set_audio_clock_rate(pll_out, rclk_rate);
- if (ret < 0)
- return ret;
-
- /* Set S/PDIF uses internal source clock */
- ret = snd_soc_dai_set_sysclk(cpu_dai, SND_SOC_SPDIF_INT_MCLK,
- rclk_rate, SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- return ret;
-}
-
-static struct snd_soc_ops smdk_spdif_ops = {
- .hw_params = smdk_hw_params,
-};
-
-static struct snd_soc_card smdk;
-
-static struct snd_soc_dai_link smdk_dai = {
- .name = "S/PDIF",
- .stream_name = "S/PDIF PCM Playback",
- .platform_name = "samsung-audio",
- .cpu_dai_name = "samsung-spdif",
- .codec_dai_name = "dit-hifi",
- .codec_name = "spdif-dit",
- .ops = &smdk_spdif_ops,
-};
-
-static struct snd_soc_card smdk = {
- .name = "SMDK-S/PDIF",
- .dai_link = &smdk_dai,
- .num_links = 1,
-};
-
-static struct platform_device *smdk_snd_spdif_dit_device;
-static struct platform_device *smdk_snd_spdif_device;
-
-static int __init smdk_init(void)
-{
- int ret;
-
- smdk_snd_spdif_dit_device = platform_device_alloc("spdif-dit", -1);
- if (!smdk_snd_spdif_dit_device)
- return -ENOMEM;
-
- ret = platform_device_add(smdk_snd_spdif_dit_device);
- if (ret)
- goto err2;
-
- smdk_snd_spdif_device = platform_device_alloc("soc-audio", -1);
- if (!smdk_snd_spdif_device) {
- ret = -ENOMEM;
- goto err2;
- }
-
- platform_set_drvdata(smdk_snd_spdif_device, &smdk);
-
- ret = platform_device_add(smdk_snd_spdif_device);
- if (ret)
- goto err1;
-
- /* Set audio clock heirachy manually */
- ret = set_audio_clock_heirachy(smdk_snd_spdif_device);
- if (ret)
- goto err1;
-
- return 0;
-err1:
- platform_device_put(smdk_snd_spdif_device);
-err2:
- platform_device_put(smdk_snd_spdif_dit_device);
- return ret;
-}
-
-static void __exit smdk_exit(void)
-{
- platform_device_unregister(smdk_snd_spdif_device);
-}
-
-module_init(smdk_init);
-module_exit(smdk_exit);
-
-MODULE_AUTHOR("Seungwhan Youn, <sw.youn@samsung.com>");
-MODULE_DESCRIPTION("ALSA SoC SMDK+S/PDIF");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * smdk_wm8580.c
- *
- * Copyright (c) 2009 Samsung Electronics Co. Ltd
- * Author: Jaswinder Singh <jassi.brar@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include <asm/mach-types.h>
-
-#include "../codecs/wm8580.h"
-#include "dma.h"
-#include "i2s.h"
-
-/*
- * Default CFG switch settings to use this driver:
- *
- * SMDK6410: Set CFG1 1-3 Off, CFG2 1-4 On
- */
-
-/* SMDK has a 12MHZ crystal attached to WM8580 */
-#define SMDK_WM8580_FREQ 12000000
-
-static int smdk_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- unsigned int pll_out;
- int bfs, rfs, ret;
-
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_U8:
- case SNDRV_PCM_FORMAT_S8:
- bfs = 16;
- break;
- case SNDRV_PCM_FORMAT_U16_LE:
- case SNDRV_PCM_FORMAT_S16_LE:
- bfs = 32;
- break;
- default:
- return -EINVAL;
- }
-
- /* The Fvco for WM8580 PLLs must fall within [90,100]MHz.
- * This criterion can't be met if we request PLL output
- * as {8000x256, 64000x256, 11025x256}Hz.
- * As a wayout, we rather change rfs to a minimum value that
- * results in (params_rate(params) * rfs), and itself, acceptable
- * to both - the CODEC and the CPU.
- */
- switch (params_rate(params)) {
- case 16000:
- case 22050:
- case 32000:
- case 44100:
- case 48000:
- case 88200:
- case 96000:
- rfs = 256;
- break;
- case 64000:
- rfs = 384;
- break;
- case 8000:
- case 11025:
- rfs = 512;
- break;
- default:
- return -EINVAL;
- }
- pll_out = params_rate(params) * rfs;
-
- /* Set the Codec DAI configuration */
- ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
- | SND_SOC_DAIFMT_NB_NF
- | SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- /* Set the AP DAI configuration */
- ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
- | SND_SOC_DAIFMT_NB_NF
- | SND_SOC_DAIFMT_CBM_CFM);
- if (ret < 0)
- return ret;
-
- /* Set WM8580 to drive MCLK from its PLLA */
- ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_MCLK,
- WM8580_CLKSRC_PLLA);
- if (ret < 0)
- return ret;
-
- ret = snd_soc_dai_set_pll(codec_dai, WM8580_PLLA, 0,
- SMDK_WM8580_FREQ, pll_out);
- if (ret < 0)
- return ret;
-
- ret = snd_soc_dai_set_sysclk(codec_dai, WM8580_CLKSRC_PLLA,
- pll_out, SND_SOC_CLOCK_IN);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-/*
- * SMDK WM8580 DAI operations.
- */
-static struct snd_soc_ops smdk_ops = {
- .hw_params = smdk_hw_params,
-};
-
-/* SMDK Playback widgets */
-static const struct snd_soc_dapm_widget wm8580_dapm_widgets_pbk[] = {
- SND_SOC_DAPM_HP("Front", NULL),
- SND_SOC_DAPM_HP("Center+Sub", NULL),
- SND_SOC_DAPM_HP("Rear", NULL),
-};
-
-/* SMDK Capture widgets */
-static const struct snd_soc_dapm_widget wm8580_dapm_widgets_cpt[] = {
- SND_SOC_DAPM_MIC("MicIn", NULL),
- SND_SOC_DAPM_LINE("LineIn", NULL),
-};
-
-/* SMDK-PAIFTX connections */
-static const struct snd_soc_dapm_route audio_map_tx[] = {
- /* MicIn feeds AINL */
- {"AINL", NULL, "MicIn"},
-
- /* LineIn feeds AINL/R */
- {"AINL", NULL, "LineIn"},
- {"AINR", NULL, "LineIn"},
-};
-
-/* SMDK-PAIFRX connections */
-static const struct snd_soc_dapm_route audio_map_rx[] = {
- /* Front Left/Right are fed VOUT1L/R */
- {"Front", NULL, "VOUT1L"},
- {"Front", NULL, "VOUT1R"},
-
- /* Center/Sub are fed VOUT2L/R */
- {"Center+Sub", NULL, "VOUT2L"},
- {"Center+Sub", NULL, "VOUT2R"},
-
- /* Rear Left/Right are fed VOUT3L/R */
- {"Rear", NULL, "VOUT3L"},
- {"Rear", NULL, "VOUT3R"},
-};
-
-static int smdk_wm8580_init_paiftx(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
-
- /* Add smdk specific Capture widgets */
- snd_soc_dapm_new_controls(dapm, wm8580_dapm_widgets_cpt,
- ARRAY_SIZE(wm8580_dapm_widgets_cpt));
-
- /* Set up PAIFTX audio path */
- snd_soc_dapm_add_routes(dapm, audio_map_tx, ARRAY_SIZE(audio_map_tx));
-
- /* Enabling the microphone requires the fitting of a 0R
- * resistor to connect the line from the microphone jack.
- */
- snd_soc_dapm_disable_pin(dapm, "MicIn");
-
- /* signal a DAPM event */
- snd_soc_dapm_sync(dapm);
-
- return 0;
-}
-
-static int smdk_wm8580_init_paifrx(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
-
- /* Add smdk specific Playback widgets */
- snd_soc_dapm_new_controls(dapm, wm8580_dapm_widgets_pbk,
- ARRAY_SIZE(wm8580_dapm_widgets_pbk));
-
- /* Set up PAIFRX audio path */
- snd_soc_dapm_add_routes(dapm, audio_map_rx, ARRAY_SIZE(audio_map_rx));
-
- /* signal a DAPM event */
- snd_soc_dapm_sync(dapm);
-
- return 0;
-}
-
-enum {
- PRI_PLAYBACK = 0,
- PRI_CAPTURE,
- SEC_PLAYBACK,
-};
-
-static struct snd_soc_dai_link smdk_dai[] = {
- [PRI_PLAYBACK] = { /* Primary Playback i/f */
- .name = "WM8580 PAIF RX",
- .stream_name = "Playback",
- .cpu_dai_name = "samsung-i2s.2",
- .codec_dai_name = "wm8580-hifi-playback",
- .platform_name = "samsung-audio",
- .codec_name = "wm8580-codec.0-001b",
- .init = smdk_wm8580_init_paifrx,
- .ops = &smdk_ops,
- },
- [PRI_CAPTURE] = { /* Primary Capture i/f */
- .name = "WM8580 PAIF TX",
- .stream_name = "Capture",
- .cpu_dai_name = "samsung-i2s.2",
- .codec_dai_name = "wm8580-hifi-capture",
- .platform_name = "samsung-audio",
- .codec_name = "wm8580-codec.0-001b",
- .init = smdk_wm8580_init_paiftx,
- .ops = &smdk_ops,
- },
- [SEC_PLAYBACK] = { /* Sec_Fifo Playback i/f */
- .name = "Sec_FIFO TX",
- .stream_name = "Playback",
- .cpu_dai_name = "samsung-i2s.x",
- .codec_dai_name = "wm8580-hifi-playback",
- .platform_name = "samsung-audio",
- .codec_name = "wm8580-codec.0-001b",
- .init = smdk_wm8580_init_paifrx,
- .ops = &smdk_ops,
- },
-};
-
-static struct snd_soc_card smdk = {
- .name = "SMDK-I2S",
- .dai_link = smdk_dai,
- .num_links = 2,
-};
-
-static struct platform_device *smdk_snd_device;
-
-static int __init smdk_audio_init(void)
-{
- int ret;
- char *str;
-
- if (machine_is_smdkc100()) {
- smdk.num_links = 3;
- /* S5PC100 has I2S0 as v5 */
- str = (char *)smdk_dai[PRI_PLAYBACK].cpu_dai_name;
- str[strlen(str) - 1] = '0';
- str = (char *)smdk_dai[PRI_CAPTURE].cpu_dai_name;
- str[strlen(str) - 1] = '0';
- /* Secondary is at offset SAMSUNG_I2S_SECOFF from Primary */
- str = (char *)smdk_dai[SEC_PLAYBACK].cpu_dai_name;
- str[strlen(str) - 1] = '0' + SAMSUNG_I2S_SECOFF;
- }
-
- smdk_snd_device = platform_device_alloc("soc-audio", -1);
- if (!smdk_snd_device)
- return -ENOMEM;
-
- platform_set_drvdata(smdk_snd_device, &smdk);
- ret = platform_device_add(smdk_snd_device);
-
- if (ret)
- platform_device_put(smdk_snd_device);
-
- return ret;
-}
-module_init(smdk_audio_init);
-
-MODULE_AUTHOR("Jaswinder Singh, jassi.brar@samsung.com");
-MODULE_DESCRIPTION("ALSA SoC SMDK WM8580");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * smdk_wm9713.c -- SoC audio for SMDK
- *
- * Copyright 2010 Samsung Electronics Co. Ltd.
- * Author: Jaswinder Singh Brar <jassi.brar@samsung.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/device.h>
-#include <sound/soc.h>
-
-#include "dma.h"
-#include "ac97.h"
-
-static struct snd_soc_card smdk;
-
-/*
- * Default CFG switch settings to use this driver:
- *
- * SMDK6410: Set CFG1 1-3 On, CFG2 1-4 Off
- * SMDKC100: Set CFG6 1-3 On, CFG7 1 On
- * SMDKC110: Set CFGB10 1-2 Off, CFGB12 1-3 On
- * SMDKV210: Set CFGB10 1-2 Off, CFGB12 1-3 On
- */
-
-/*
- Playback (HeadPhone):-
- $ amixer sset 'Headphone' unmute
- $ amixer sset 'Right Headphone Out Mux' 'Headphone'
- $ amixer sset 'Left Headphone Out Mux' 'Headphone'
- $ amixer sset 'Right HP Mixer PCM' unmute
- $ amixer sset 'Left HP Mixer PCM' unmute
-
- Capture (LineIn):-
- $ amixer sset 'Right Capture Source' 'Line'
- $ amixer sset 'Left Capture Source' 'Line'
-*/
-
-static struct snd_soc_dai_link smdk_dai = {
- .name = "AC97",
- .stream_name = "AC97 PCM",
- .platform_name = "samsung-audio",
- .cpu_dai_name = "samsung-ac97",
- .codec_dai_name = "wm9713-hifi",
- .codec_name = "wm9713-codec",
-};
-
-static struct snd_soc_card smdk = {
- .name = "SMDK WM9713",
- .dai_link = &smdk_dai,
- .num_links = 1,
-};
-
-static struct platform_device *smdk_snd_wm9713_device;
-static struct platform_device *smdk_snd_ac97_device;
-
-static int __init smdk_init(void)
-{
- int ret;
-
- smdk_snd_wm9713_device = platform_device_alloc("wm9713-codec", -1);
- if (!smdk_snd_wm9713_device)
- return -ENOMEM;
-
- ret = platform_device_add(smdk_snd_wm9713_device);
- if (ret)
- goto err;
-
- smdk_snd_ac97_device = platform_device_alloc("soc-audio", -1);
- if (!smdk_snd_ac97_device) {
- ret = -ENOMEM;
- goto err;
- }
-
- platform_set_drvdata(smdk_snd_ac97_device, &smdk);
-
- ret = platform_device_add(smdk_snd_ac97_device);
- if (ret) {
- platform_device_put(smdk_snd_ac97_device);
- goto err;
- }
-
- return 0;
-err:
- platform_device_put(smdk_snd_wm9713_device);
- return ret;
-}
-
-static void __exit smdk_exit(void)
-{
- platform_device_unregister(smdk_snd_ac97_device);
- platform_device_unregister(smdk_snd_wm9713_device);
-}
-
-module_init(smdk_init);
-module_exit(smdk_exit);
-
-/* Module information */
-MODULE_AUTHOR("Jaswinder Singh Brar, jassi.brar@samsung.com");
-MODULE_DESCRIPTION("ALSA SoC SMDK+WM9713");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* sound/soc/s3c24xx/spdif.c
- *
- * ALSA SoC Audio Layer - Samsung S/PDIF Controller driver
- *
- * Copyright (c) 2010 Samsung Electronics Co. Ltd
- * http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/clk.h>
-#include <linux/io.h>
-
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include <plat/audio.h>
-#include <mach/dma.h>
-
-#include "dma.h"
-#include "spdif.h"
-
-/* Registers */
-#define CLKCON 0x00
-#define CON 0x04
-#define BSTAS 0x08
-#define CSTAS 0x0C
-#define DATA_OUTBUF 0x10
-#define DCNT 0x14
-#define BSTAS_S 0x18
-#define DCNT_S 0x1C
-
-#define CLKCTL_MASK 0x7
-#define CLKCTL_MCLK_EXT (0x1 << 2)
-#define CLKCTL_PWR_ON (0x1 << 0)
-
-#define CON_MASK 0x3ffffff
-#define CON_FIFO_TH_SHIFT 19
-#define CON_FIFO_TH_MASK (0x7 << 19)
-#define CON_USERDATA_23RDBIT (0x1 << 12)
-
-#define CON_SW_RESET (0x1 << 5)
-
-#define CON_MCLKDIV_MASK (0x3 << 3)
-#define CON_MCLKDIV_256FS (0x0 << 3)
-#define CON_MCLKDIV_384FS (0x1 << 3)
-#define CON_MCLKDIV_512FS (0x2 << 3)
-
-#define CON_PCM_MASK (0x3 << 1)
-#define CON_PCM_16BIT (0x0 << 1)
-#define CON_PCM_20BIT (0x1 << 1)
-#define CON_PCM_24BIT (0x2 << 1)
-
-#define CON_PCM_DATA (0x1 << 0)
-
-#define CSTAS_MASK 0x3fffffff
-#define CSTAS_SAMP_FREQ_MASK (0xF << 24)
-#define CSTAS_SAMP_FREQ_44 (0x0 << 24)
-#define CSTAS_SAMP_FREQ_48 (0x2 << 24)
-#define CSTAS_SAMP_FREQ_32 (0x3 << 24)
-#define CSTAS_SAMP_FREQ_96 (0xA << 24)
-
-#define CSTAS_CATEGORY_MASK (0xFF << 8)
-#define CSTAS_CATEGORY_CODE_CDP (0x01 << 8)
-
-#define CSTAS_NO_COPYRIGHT (0x1 << 2)
-
-/**
- * struct samsung_spdif_info - Samsung S/PDIF Controller information
- * @lock: Spin lock for S/PDIF.
- * @dev: The parent device passed to use from the probe.
- * @regs: The pointer to the device register block.
- * @clk_rate: Current clock rate for calcurate ratio.
- * @pclk: The peri-clock pointer for spdif master operation.
- * @sclk: The source clock pointer for making sync signals.
- * @save_clkcon: Backup clkcon reg. in suspend.
- * @save_con: Backup con reg. in suspend.
- * @save_cstas: Backup cstas reg. in suspend.
- * @dma_playback: DMA information for playback channel.
- */
-struct samsung_spdif_info {
- spinlock_t lock;
- struct device *dev;
- void __iomem *regs;
- unsigned long clk_rate;
- struct clk *pclk;
- struct clk *sclk;
- u32 saved_clkcon;
- u32 saved_con;
- u32 saved_cstas;
- struct s3c_dma_params *dma_playback;
-};
-
-static struct s3c2410_dma_client spdif_dma_client_out = {
- .name = "S/PDIF Stereo out",
-};
-
-static struct s3c_dma_params spdif_stereo_out;
-static struct samsung_spdif_info spdif_info;
-
-static inline struct samsung_spdif_info *to_info(struct snd_soc_dai *cpu_dai)
-{
- return snd_soc_dai_get_drvdata(cpu_dai);
-}
-
-static void spdif_snd_txctrl(struct samsung_spdif_info *spdif, int on)
-{
- void __iomem *regs = spdif->regs;
- u32 clkcon;
-
- dev_dbg(spdif->dev, "Entered %s\n", __func__);
-
- clkcon = readl(regs + CLKCON) & CLKCTL_MASK;
- if (on)
- writel(clkcon | CLKCTL_PWR_ON, regs + CLKCON);
- else
- writel(clkcon & ~CLKCTL_PWR_ON, regs + CLKCON);
-}
-
-static int spdif_set_sysclk(struct snd_soc_dai *cpu_dai,
- int clk_id, unsigned int freq, int dir)
-{
- struct samsung_spdif_info *spdif = to_info(cpu_dai);
- u32 clkcon;
-
- dev_dbg(spdif->dev, "Entered %s\n", __func__);
-
- clkcon = readl(spdif->regs + CLKCON);
-
- if (clk_id == SND_SOC_SPDIF_INT_MCLK)
- clkcon &= ~CLKCTL_MCLK_EXT;
- else
- clkcon |= CLKCTL_MCLK_EXT;
-
- writel(clkcon, spdif->regs + CLKCON);
-
- spdif->clk_rate = freq;
-
- return 0;
-}
-
-static int spdif_trigger(struct snd_pcm_substream *substream, int cmd,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct samsung_spdif_info *spdif = to_info(rtd->cpu_dai);
- unsigned long flags;
-
- dev_dbg(spdif->dev, "Entered %s\n", __func__);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- spin_lock_irqsave(&spdif->lock, flags);
- spdif_snd_txctrl(spdif, 1);
- spin_unlock_irqrestore(&spdif->lock, flags);
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- spin_lock_irqsave(&spdif->lock, flags);
- spdif_snd_txctrl(spdif, 0);
- spin_unlock_irqrestore(&spdif->lock, flags);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int spdif_sysclk_ratios[] = {
- 512, 384, 256,
-};
-
-static int spdif_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *socdai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct samsung_spdif_info *spdif = to_info(rtd->cpu_dai);
- void __iomem *regs = spdif->regs;
- struct s3c_dma_params *dma_data;
- u32 con, clkcon, cstas;
- unsigned long flags;
- int i, ratio;
-
- dev_dbg(spdif->dev, "Entered %s\n", __func__);
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- dma_data = spdif->dma_playback;
- else {
- dev_err(spdif->dev, "Capture is not supported\n");
- return -EINVAL;
- }
-
- snd_soc_dai_set_dma_data(rtd->cpu_dai, substream, dma_data);
-
- spin_lock_irqsave(&spdif->lock, flags);
-
- con = readl(regs + CON) & CON_MASK;
- cstas = readl(regs + CSTAS) & CSTAS_MASK;
- clkcon = readl(regs + CLKCON) & CLKCTL_MASK;
-
- con &= ~CON_FIFO_TH_MASK;
- con |= (0x7 << CON_FIFO_TH_SHIFT);
- con |= CON_USERDATA_23RDBIT;
- con |= CON_PCM_DATA;
-
- con &= ~CON_PCM_MASK;
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S16_LE:
- con |= CON_PCM_16BIT;
- break;
- default:
- dev_err(spdif->dev, "Unsupported data size.\n");
- goto err;
- }
-
- ratio = spdif->clk_rate / params_rate(params);
- for (i = 0; i < ARRAY_SIZE(spdif_sysclk_ratios); i++)
- if (ratio == spdif_sysclk_ratios[i])
- break;
- if (i == ARRAY_SIZE(spdif_sysclk_ratios)) {
- dev_err(spdif->dev, "Invalid clock ratio %ld/%d\n",
- spdif->clk_rate, params_rate(params));
- goto err;
- }
-
- con &= ~CON_MCLKDIV_MASK;
- switch (ratio) {
- case 256:
- con |= CON_MCLKDIV_256FS;
- break;
- case 384:
- con |= CON_MCLKDIV_384FS;
- break;
- case 512:
- con |= CON_MCLKDIV_512FS;
- break;
- }
-
- cstas &= ~CSTAS_SAMP_FREQ_MASK;
- switch (params_rate(params)) {
- case 44100:
- cstas |= CSTAS_SAMP_FREQ_44;
- break;
- case 48000:
- cstas |= CSTAS_SAMP_FREQ_48;
- break;
- case 32000:
- cstas |= CSTAS_SAMP_FREQ_32;
- break;
- case 96000:
- cstas |= CSTAS_SAMP_FREQ_96;
- break;
- default:
- dev_err(spdif->dev, "Invalid sampling rate %d\n",
- params_rate(params));
- goto err;
- }
-
- cstas &= ~CSTAS_CATEGORY_MASK;
- cstas |= CSTAS_CATEGORY_CODE_CDP;
- cstas |= CSTAS_NO_COPYRIGHT;
-
- writel(con, regs + CON);
- writel(cstas, regs + CSTAS);
- writel(clkcon, regs + CLKCON);
-
- spin_unlock_irqrestore(&spdif->lock, flags);
-
- return 0;
-err:
- spin_unlock_irqrestore(&spdif->lock, flags);
- return -EINVAL;
-}
-
-static void spdif_shutdown(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct samsung_spdif_info *spdif = to_info(rtd->cpu_dai);
- void __iomem *regs = spdif->regs;
- u32 con, clkcon;
-
- dev_dbg(spdif->dev, "Entered %s\n", __func__);
-
- con = readl(regs + CON) & CON_MASK;
- clkcon = readl(regs + CLKCON) & CLKCTL_MASK;
-
- writel(con | CON_SW_RESET, regs + CON);
- cpu_relax();
-
- writel(clkcon & ~CLKCTL_PWR_ON, regs + CLKCON);
-}
-
-#ifdef CONFIG_PM
-static int spdif_suspend(struct snd_soc_dai *cpu_dai)
-{
- struct samsung_spdif_info *spdif = to_info(cpu_dai);
- u32 con = spdif->saved_con;
-
- dev_dbg(spdif->dev, "Entered %s\n", __func__);
-
- spdif->saved_clkcon = readl(spdif->regs + CLKCON) & CLKCTL_MASK;
- spdif->saved_con = readl(spdif->regs + CON) & CON_MASK;
- spdif->saved_cstas = readl(spdif->regs + CSTAS) & CSTAS_MASK;
-
- writel(con | CON_SW_RESET, spdif->regs + CON);
- cpu_relax();
-
- return 0;
-}
-
-static int spdif_resume(struct snd_soc_dai *cpu_dai)
-{
- struct samsung_spdif_info *spdif = to_info(cpu_dai);
-
- dev_dbg(spdif->dev, "Entered %s\n", __func__);
-
- writel(spdif->saved_clkcon, spdif->regs + CLKCON);
- writel(spdif->saved_con, spdif->regs + CON);
- writel(spdif->saved_cstas, spdif->regs + CSTAS);
-
- return 0;
-}
-#else
-#define spdif_suspend NULL
-#define spdif_resume NULL
-#endif
-
-static struct snd_soc_dai_ops spdif_dai_ops = {
- .set_sysclk = spdif_set_sysclk,
- .trigger = spdif_trigger,
- .hw_params = spdif_hw_params,
- .shutdown = spdif_shutdown,
-};
-
-struct snd_soc_dai_driver samsung_spdif_dai = {
- .name = "samsung-spdif",
- .playback = {
- .stream_name = "S/PDIF Playback",
- .channels_min = 2,
- .channels_max = 2,
- .rates = (SNDRV_PCM_RATE_32000 |
- SNDRV_PCM_RATE_44100 |
- SNDRV_PCM_RATE_48000 |
- SNDRV_PCM_RATE_96000),
- .formats = SNDRV_PCM_FMTBIT_S16_LE, },
- .ops = &spdif_dai_ops,
- .suspend = spdif_suspend,
- .resume = spdif_resume,
-};
-
-static __devinit int spdif_probe(struct platform_device *pdev)
-{
- struct s3c_audio_pdata *spdif_pdata;
- struct resource *mem_res, *dma_res;
- struct samsung_spdif_info *spdif;
- int ret;
-
- spdif_pdata = pdev->dev.platform_data;
-
- dev_dbg(&pdev->dev, "Entered %s\n", __func__);
-
- dma_res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (!dma_res) {
- dev_err(&pdev->dev, "Unable to get dma resource.\n");
- return -ENXIO;
- }
-
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem_res) {
- dev_err(&pdev->dev, "Unable to get register resource.\n");
- return -ENXIO;
- }
-
- if (spdif_pdata && spdif_pdata->cfg_gpio
- && spdif_pdata->cfg_gpio(pdev)) {
- dev_err(&pdev->dev, "Unable to configure GPIO pins\n");
- return -EINVAL;
- }
-
- spdif = &spdif_info;
- spdif->dev = &pdev->dev;
-
- spin_lock_init(&spdif->lock);
-
- spdif->pclk = clk_get(&pdev->dev, "spdif");
- if (IS_ERR(spdif->pclk)) {
- dev_err(&pdev->dev, "failed to get peri-clock\n");
- ret = -ENOENT;
- goto err0;
- }
- clk_enable(spdif->pclk);
-
- spdif->sclk = clk_get(&pdev->dev, "sclk_spdif");
- if (IS_ERR(spdif->sclk)) {
- dev_err(&pdev->dev, "failed to get internal source clock\n");
- ret = -ENOENT;
- goto err1;
- }
- clk_enable(spdif->sclk);
-
- /* Request S/PDIF Register's memory region */
- if (!request_mem_region(mem_res->start,
- resource_size(mem_res), "samsung-spdif")) {
- dev_err(&pdev->dev, "Unable to request register region\n");
- ret = -EBUSY;
- goto err2;
- }
-
- spdif->regs = ioremap(mem_res->start, 0x100);
- if (spdif->regs == NULL) {
- dev_err(&pdev->dev, "Cannot ioremap registers\n");
- ret = -ENXIO;
- goto err3;
- }
-
- dev_set_drvdata(&pdev->dev, spdif);
-
- ret = snd_soc_register_dai(&pdev->dev, &samsung_spdif_dai);
- if (ret != 0) {
- dev_err(&pdev->dev, "fail to register dai\n");
- goto err4;
- }
-
- spdif_stereo_out.dma_size = 2;
- spdif_stereo_out.client = &spdif_dma_client_out;
- spdif_stereo_out.dma_addr = mem_res->start + DATA_OUTBUF;
- spdif_stereo_out.channel = dma_res->start;
-
- spdif->dma_playback = &spdif_stereo_out;
-
- return 0;
-
-err4:
- iounmap(spdif->regs);
-err3:
- release_mem_region(mem_res->start, resource_size(mem_res));
-err2:
- clk_disable(spdif->sclk);
- clk_put(spdif->sclk);
-err1:
- clk_disable(spdif->pclk);
- clk_put(spdif->pclk);
-err0:
- return ret;
-}
-
-static __devexit int spdif_remove(struct platform_device *pdev)
-{
- struct samsung_spdif_info *spdif = &spdif_info;
- struct resource *mem_res;
-
- snd_soc_unregister_dai(&pdev->dev);
-
- iounmap(spdif->regs);
-
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (mem_res)
- release_mem_region(mem_res->start, resource_size(mem_res));
-
- clk_disable(spdif->sclk);
- clk_put(spdif->sclk);
- clk_disable(spdif->pclk);
- clk_put(spdif->pclk);
-
- return 0;
-}
-
-static struct platform_driver samsung_spdif_driver = {
- .probe = spdif_probe,
- .remove = spdif_remove,
- .driver = {
- .name = "samsung-spdif",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init spdif_init(void)
-{
- return platform_driver_register(&samsung_spdif_driver);
-}
-module_init(spdif_init);
-
-static void __exit spdif_exit(void)
-{
- platform_driver_unregister(&samsung_spdif_driver);
-}
-module_exit(spdif_exit);
-
-MODULE_AUTHOR("Seungwhan Youn, <sw.youn@samsung.com>");
-MODULE_DESCRIPTION("Samsung S/PDIF Controller Driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:samsung-spdif");
+++ /dev/null
-/* sound/soc/s3c24xx/spdif.h
- *
- * ALSA SoC Audio Layer - Samsung S/PDIF Controller driver
- *
- * Copyright (c) 2010 Samsung Electronics Co. Ltd
- * http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __SND_SOC_SAMSUNG_SPDIF_H
-#define __SND_SOC_SAMSUNG_SPDIF_H __FILE__
-
-#define SND_SOC_SPDIF_INT_MCLK 0
-#define SND_SOC_SPDIF_EXT_MCLK 1
-
-#endif /* __SND_SOC_SAMSUNG_SPDIF_H */
--- /dev/null
+config ASOC_SAMSUNG
+ tristate "ASoC support for Samsung"
+ depends on ARCH_S3C2410 || ARCH_S3C64XX || ARCH_S5PC100 || ARCH_S5PV210
+ select S3C64XX_DMA if ARCH_S3C64XX
+ select S3C2410_DMA if ARCH_S3C2410
+ help
+ Say Y or M if you want to add support for codecs attached to
+ the Samsung SoCs' Audio interfaces. You will also need to
+ select the audio interfaces to support below.
+
+config SND_S3C24XX_I2S
+ tristate
+ select S3C2410_DMA
+
+config SND_S3C_I2SV2_SOC
+ tristate
+
+config SND_S3C2412_SOC_I2S
+ tristate
+ select SND_S3C_I2SV2_SOC
+ select S3C2410_DMA
+
+config SND_SAMSUNG_PCM
+ tristate
+
+config SND_SAMSUNG_AC97
+ tristate
+ select SND_SOC_AC97_BUS
+
+config SND_SAMSUNG_SPDIF
+ tristate
+ select SND_SOC_SPDIF
+
+config SND_SAMSUNG_I2S
+ tristate
+
+config ASOC_SAMSUNG_NEO1973_WM8753
+ tristate "SoC I2S Audio support for NEO1973 - WM8753"
+ depends on ASOC_SAMSUNG && MACH_NEO1973_GTA01
+ select SND_S3C24XX_I2S
+ select SND_SOC_WM8753
+ help
+ Say Y if you want to add support for SoC audio on smdk2440
+ with the WM8753.
+
+config ASOC_SAMSUNG_NEO1973_GTA02_WM8753
+ tristate "Audio support for the Openmoko Neo FreeRunner (GTA02)"
+ depends on ASOC_SAMSUNG && MACH_NEO1973_GTA02
+ select SND_S3C24XX_I2S
+ select SND_SOC_WM8753
+ help
+ This driver provides audio support for the Openmoko Neo FreeRunner
+ smartphone.
+
+config ASOC_SAMSUNG_JIVE_WM8750
+ tristate "SoC I2S Audio support for Jive"
+ depends on ASOC_SAMSUNG && MACH_JIVE
+ select SND_SOC_WM8750
+ select SND_S3C2412_SOC_I2S
+ help
+ Sat Y if you want to add support for SoC audio on the Jive.
+
+config ASOC_SAMSUNG_SMDK_WM8580
+ tristate "SoC I2S Audio support for WM8580 on SMDK"
+ depends on ASOC_SAMSUNG && (MACH_SMDK6410 || MACH_SMDKC100)
+ select SND_SOC_WM8580
+ select SND_SAMSUNG_I2S
+ help
+ Say Y if you want to add support for SoC audio on the SMDKs.
+
+config ASOC_SAMSUNG_SMDK2443_WM9710
+ tristate "SoC AC97 Audio support for SMDK2443 - WM9710"
+ depends on ASOC_SAMSUNG && MACH_SMDK2443
+ select S3C2410_DMA
+ select AC97_BUS
+ select SND_SOC_AC97_CODEC
+ select SND_SAMSUNG_AC97
+ help
+ Say Y if you want to add support for SoC audio on smdk2443
+ with the WM9710.
+
+config ASOC_SAMSUNG_LN2440SBC_ALC650
+ tristate "SoC AC97 Audio support for LN2440SBC - ALC650"
+ depends on ASOC_SAMSUNG && ARCH_S3C2410
+ select S3C2410_DMA
+ select AC97_BUS
+ select SND_SOC_AC97_CODEC
+ select SND_SAMSUNG_AC97
+ help
+ Say Y if you want to add support for SoC audio on ln2440sbc
+ with the ALC650.
+
+config ASOC_SAMSUNG_S3C24XX_UDA134X
+ tristate "SoC I2S Audio support UDA134X wired to a S3C24XX"
+ depends on ASOC_SAMSUNG && ARCH_S3C2410
+ select SND_S3C24XX_I2S
+ select SND_SOC_L3
+ select SND_SOC_UDA134X
+
+config ASOC_SAMSUNG_SIMTEC
+ tristate
+ help
+ Internal node for common S3C24XX/Simtec suppor
+
+config ASOC_SAMSUNG_SIMTEC_TLV320AIC23
+ tristate "SoC I2S Audio support for TLV320AIC23 on Simtec boards"
+ depends on ASOC_SAMSUNG && ARCH_S3C2410
+ select SND_S3C24XX_I2S
+ select SND_SOC_TLV320AIC23
+ select ASOC_SAMSUNG_SIMTEC
+
+config ASOC_SAMSUNG_SIMTEC_HERMES
+ tristate "SoC I2S Audio support for Simtec Hermes board"
+ depends on ASOC_SAMSUNG && ARCH_S3C2410
+ select SND_S3C24XX_I2S
+ select SND_SOC_TLV320AIC3X
+ select ASOC_SAMSUNG_SIMTEC
+
+config ASOC_SAMSUNG_RX1950_UDA1380
+ tristate "Audio support for the HP iPAQ RX1950"
+ depends on ASOC_SAMSUNG && MACH_RX1950
+ select SND_S3C24XX_I2S
+ select SND_SOC_UDA1380
+ help
+ This driver provides audio support for HP iPAQ RX1950 PDA.
+
+config ASOC_SAMSUNG_SMDK_WM9713
+ tristate "SoC AC97 Audio support for SMDK with WM9713"
+ depends on ASOC_SAMSUNG && (MACH_SMDK6410 || MACH_SMDKC100 || MACH_SMDKV210 || MACH_SMDKC110)
+ select SND_SOC_WM9713
+ select SND_SAMSUNG_AC97
+ help
+ Sat Y if you want to add support for SoC audio on the SMDK.
+
+config ASOC_SMARTQ
+ tristate "SoC I2S Audio support for SmartQ board"
+ depends on ASOC_SAMSUNG && MACH_SMARTQ
+ select SND_SAMSUNG_I2S
+ select SND_SOC_WM8750
+
+config ASOC_GONI_AQUILA_WM8994
+ tristate "SoC I2S Audio support for AQUILA/GONI - WM8994"
+ depends on ASOC_SAMSUNG && (MACH_GONI || MACH_AQUILA)
+ select SND_SAMSUNG_I2S
+ select SND_SOC_WM8994
+ help
+ Say Y if you want to add support for SoC audio on goni or aquila
+ with the WM8994.
+
+config ASOC_SAMSUNG_SMDK_SPDIF
+ tristate "SoC S/PDIF Audio support for SMDK"
+ depends on ASOC_SAMSUNG && (MACH_SMDKC100 || MACH_SMDKC110 || MACH_SMDKV210)
+ select SND_SAMSUNG_SPDIF
+ help
+ Say Y if you want to add support for SoC S/PDIF audio on the SMDK.
--- /dev/null
+# S3c24XX Platform Support
+snd-soc-s3c24xx-objs := dma.o
+snd-soc-s3c24xx-i2s-objs := s3c24xx-i2s.o
+snd-soc-s3c2412-i2s-objs := s3c2412-i2s.o
+snd-soc-ac97-objs := ac97.o
+snd-soc-s3c-i2s-v2-objs := s3c-i2s-v2.o
+snd-soc-samsung-spdif-objs := spdif.o
+snd-soc-pcm-objs := pcm.o
+snd-soc-i2s-objs := i2s.o
+
+obj-$(CONFIG_ASOC_SAMSUNG) += snd-soc-s3c24xx.o
+obj-$(CONFIG_SND_S3C24XX_I2S) += snd-soc-s3c24xx-i2s.o
+obj-$(CONFIG_SND_SAMSUNG_AC97) += snd-soc-ac97.o
+obj-$(CONFIG_SND_S3C2412_SOC_I2S) += snd-soc-s3c2412-i2s.o
+obj-$(CONFIG_SND_S3C_I2SV2_SOC) += snd-soc-s3c-i2s-v2.o
+obj-$(CONFIG_SND_SAMSUNG_SPDIF) += snd-soc-samsung-spdif.o
+obj-$(CONFIG_SND_SAMSUNG_PCM) += snd-soc-pcm.o
+obj-$(CONFIG_SND_SAMSUNG_I2S) += snd-soc-i2s.o
+
+# S3C24XX Machine Support
+snd-soc-jive-wm8750-objs := jive_wm8750.o
+snd-soc-neo1973-wm8753-objs := neo1973_wm8753.o
+snd-soc-neo1973-gta02-wm8753-objs := neo1973_gta02_wm8753.o
+snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.o
+snd-soc-ln2440sbc-alc650-objs := ln2440sbc_alc650.o
+snd-soc-s3c24xx-uda134x-objs := s3c24xx_uda134x.o
+snd-soc-s3c24xx-simtec-objs := s3c24xx_simtec.o
+snd-soc-s3c24xx-simtec-hermes-objs := s3c24xx_simtec_hermes.o
+snd-soc-s3c24xx-simtec-tlv320aic23-objs := s3c24xx_simtec_tlv320aic23.o
+snd-soc-rx1950-uda1380-objs := rx1950_uda1380.o
+snd-soc-smdk-wm8580-objs := smdk_wm8580.o
+snd-soc-smdk-wm9713-objs := smdk_wm9713.o
+snd-soc-s3c64xx-smartq-wm8987-objs := smartq_wm8987.o
+snd-soc-goni-wm8994-objs := goni_wm8994.o
+snd-soc-smdk-spdif-objs := smdk_spdif.o
+
+obj-$(CONFIG_ASOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o
+obj-$(CONFIG_ASOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
+obj-$(CONFIG_ASOC_SAMSUNG_NEO1973_GTA02_WM8753) += snd-soc-neo1973-gta02-wm8753.o
+obj-$(CONFIG_ASOC_SAMSUNG_SMDK2443_WM9710) += snd-soc-smdk2443-wm9710.o
+obj-$(CONFIG_ASOC_SAMSUNG_LN2440SBC_ALC650) += snd-soc-ln2440sbc-alc650.o
+obj-$(CONFIG_ASOC_SAMSUNG_S3C24XX_UDA134X) += snd-soc-s3c24xx-uda134x.o
+obj-$(CONFIG_ASOC_SAMSUNG_SIMTEC) += snd-soc-s3c24xx-simtec.o
+obj-$(CONFIG_ASOC_SAMSUNG_SIMTEC_HERMES) += snd-soc-s3c24xx-simtec-hermes.o
+obj-$(CONFIG_ASOC_SAMSUNG_SIMTEC_TLV320AIC23) += snd-soc-s3c24xx-simtec-tlv320aic23.o
+obj-$(CONFIG_ASOC_SAMSUNG_RX1950_UDA1380) += snd-soc-rx1950-uda1380.o
+obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM8580) += snd-soc-smdk-wm8580.o
+obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM9713) += snd-soc-smdk-wm9713.o
+obj-$(CONFIG_ASOC_SMARTQ) += snd-soc-s3c64xx-smartq-wm8987.o
+obj-$(CONFIG_ASOC_SAMSUNG_SMDK_SPDIF) += snd-soc-smdk-spdif.o
+obj-$(CONFIG_ASOC_GONI_AQUILA_WM8994) += snd-soc-goni-wm8994.o
--- /dev/null
+/* sound/soc/samsung/ac97.c
+ *
+ * ALSA SoC Audio Layer - S3C AC97 Controller driver
+ * Evolved from s3c2443-ac97.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co. Ltd
+ * Author: Jaswinder Singh <jassi.brar@samsung.com>
+ * Credits: Graeme Gregory, Sean Choi
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+
+#include <sound/soc.h>
+
+#include <plat/regs-ac97.h>
+#include <mach/dma.h>
+#include <plat/audio.h>
+
+#include "dma.h"
+#include "ac97.h"
+
+#define AC_CMD_ADDR(x) (x << 16)
+#define AC_CMD_DATA(x) (x & 0xffff)
+
+struct s3c_ac97_info {
+ struct clk *ac97_clk;
+ void __iomem *regs;
+ struct mutex lock;
+ struct completion done;
+};
+static struct s3c_ac97_info s3c_ac97;
+
+static struct s3c2410_dma_client s3c_dma_client_out = {
+ .name = "AC97 PCMOut"
+};
+
+static struct s3c2410_dma_client s3c_dma_client_in = {
+ .name = "AC97 PCMIn"
+};
+
+static struct s3c2410_dma_client s3c_dma_client_micin = {
+ .name = "AC97 MicIn"
+};
+
+static struct s3c_dma_params s3c_ac97_pcm_out = {
+ .client = &s3c_dma_client_out,
+ .dma_size = 4,
+};
+
+static struct s3c_dma_params s3c_ac97_pcm_in = {
+ .client = &s3c_dma_client_in,
+ .dma_size = 4,
+};
+
+static struct s3c_dma_params s3c_ac97_mic_in = {
+ .client = &s3c_dma_client_micin,
+ .dma_size = 4,
+};
+
+static void s3c_ac97_activate(struct snd_ac97 *ac97)
+{
+ u32 ac_glbctrl, stat;
+
+ stat = readl(s3c_ac97.regs + S3C_AC97_GLBSTAT) & 0x7;
+ if (stat == S3C_AC97_GLBSTAT_MAINSTATE_ACTIVE)
+ return; /* Return if already active */
+
+ INIT_COMPLETION(s3c_ac97.done);
+
+ ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ ac_glbctrl = S3C_AC97_GLBCTRL_ACLINKON;
+ writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ msleep(1);
+
+ ac_glbctrl |= S3C_AC97_GLBCTRL_TRANSFERDATAENABLE;
+ writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ msleep(1);
+
+ ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ ac_glbctrl |= S3C_AC97_GLBCTRL_CODECREADYIE;
+ writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+
+ if (!wait_for_completion_timeout(&s3c_ac97.done, HZ))
+ pr_err("AC97: Unable to activate!");
+}
+
+static unsigned short s3c_ac97_read(struct snd_ac97 *ac97,
+ unsigned short reg)
+{
+ u32 ac_glbctrl, ac_codec_cmd;
+ u32 stat, addr, data;
+
+ mutex_lock(&s3c_ac97.lock);
+
+ s3c_ac97_activate(ac97);
+
+ INIT_COMPLETION(s3c_ac97.done);
+
+ ac_codec_cmd = readl(s3c_ac97.regs + S3C_AC97_CODEC_CMD);
+ ac_codec_cmd = S3C_AC97_CODEC_CMD_READ | AC_CMD_ADDR(reg);
+ writel(ac_codec_cmd, s3c_ac97.regs + S3C_AC97_CODEC_CMD);
+
+ udelay(50);
+
+ ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ ac_glbctrl |= S3C_AC97_GLBCTRL_CODECREADYIE;
+ writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+
+ if (!wait_for_completion_timeout(&s3c_ac97.done, HZ))
+ pr_err("AC97: Unable to read!");
+
+ stat = readl(s3c_ac97.regs + S3C_AC97_STAT);
+ addr = (stat >> 16) & 0x7f;
+ data = (stat & 0xffff);
+
+ if (addr != reg)
+ pr_err("ac97: req addr = %02x, rep addr = %02x\n",
+ reg, addr);
+
+ mutex_unlock(&s3c_ac97.lock);
+
+ return (unsigned short)data;
+}
+
+static void s3c_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
+ unsigned short val)
+{
+ u32 ac_glbctrl, ac_codec_cmd;
+
+ mutex_lock(&s3c_ac97.lock);
+
+ s3c_ac97_activate(ac97);
+
+ INIT_COMPLETION(s3c_ac97.done);
+
+ ac_codec_cmd = readl(s3c_ac97.regs + S3C_AC97_CODEC_CMD);
+ ac_codec_cmd = AC_CMD_ADDR(reg) | AC_CMD_DATA(val);
+ writel(ac_codec_cmd, s3c_ac97.regs + S3C_AC97_CODEC_CMD);
+
+ udelay(50);
+
+ ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ ac_glbctrl |= S3C_AC97_GLBCTRL_CODECREADYIE;
+ writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+
+ if (!wait_for_completion_timeout(&s3c_ac97.done, HZ))
+ pr_err("AC97: Unable to write!");
+
+ ac_codec_cmd = readl(s3c_ac97.regs + S3C_AC97_CODEC_CMD);
+ ac_codec_cmd |= S3C_AC97_CODEC_CMD_READ;
+ writel(ac_codec_cmd, s3c_ac97.regs + S3C_AC97_CODEC_CMD);
+
+ mutex_unlock(&s3c_ac97.lock);
+}
+
+static void s3c_ac97_cold_reset(struct snd_ac97 *ac97)
+{
+ pr_debug("AC97: Cold reset\n");
+ writel(S3C_AC97_GLBCTRL_COLDRESET,
+ s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ msleep(1);
+
+ writel(0, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ msleep(1);
+}
+
+static void s3c_ac97_warm_reset(struct snd_ac97 *ac97)
+{
+ u32 stat;
+
+ stat = readl(s3c_ac97.regs + S3C_AC97_GLBSTAT) & 0x7;
+ if (stat == S3C_AC97_GLBSTAT_MAINSTATE_ACTIVE)
+ return; /* Return if already active */
+
+ pr_debug("AC97: Warm reset\n");
+
+ writel(S3C_AC97_GLBCTRL_WARMRESET, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ msleep(1);
+
+ writel(0, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ msleep(1);
+
+ s3c_ac97_activate(ac97);
+}
+
+static irqreturn_t s3c_ac97_irq(int irq, void *dev_id)
+{
+ u32 ac_glbctrl, ac_glbstat;
+
+ ac_glbstat = readl(s3c_ac97.regs + S3C_AC97_GLBSTAT);
+
+ if (ac_glbstat & S3C_AC97_GLBSTAT_CODECREADY) {
+
+ ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ ac_glbctrl &= ~S3C_AC97_GLBCTRL_CODECREADYIE;
+ writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+
+ complete(&s3c_ac97.done);
+ }
+
+ ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ ac_glbctrl |= (1<<30); /* Clear interrupt */
+ writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+
+ return IRQ_HANDLED;
+}
+
+struct snd_ac97_bus_ops soc_ac97_ops = {
+ .read = s3c_ac97_read,
+ .write = s3c_ac97_write,
+ .warm_reset = s3c_ac97_warm_reset,
+ .reset = s3c_ac97_cold_reset,
+};
+EXPORT_SYMBOL_GPL(soc_ac97_ops);
+
+static int s3c_ac97_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct s3c_dma_params *dma_data;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dma_data = &s3c_ac97_pcm_out;
+ else
+ dma_data = &s3c_ac97_pcm_in;
+
+ snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
+
+ return 0;
+}
+
+static int s3c_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ u32 ac_glbctrl;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct s3c_dma_params *dma_data =
+ snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+
+ ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ ac_glbctrl &= ~S3C_AC97_GLBCTRL_PCMINTM_MASK;
+ else
+ ac_glbctrl &= ~S3C_AC97_GLBCTRL_PCMOUTTM_MASK;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ ac_glbctrl |= S3C_AC97_GLBCTRL_PCMINTM_DMA;
+ else
+ ac_glbctrl |= S3C_AC97_GLBCTRL_PCMOUTTM_DMA;
+ break;
+
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ break;
+ }
+
+ writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+
+ s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
+
+ return 0;
+}
+
+static int s3c_ac97_hw_mic_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ return -ENODEV;
+ else
+ snd_soc_dai_set_dma_data(cpu_dai, substream, &s3c_ac97_mic_in);
+
+ return 0;
+}
+
+static int s3c_ac97_mic_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *dai)
+{
+ u32 ac_glbctrl;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct s3c_dma_params *dma_data =
+ snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+
+ ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
+ ac_glbctrl &= ~S3C_AC97_GLBCTRL_MICINTM_MASK;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ ac_glbctrl |= S3C_AC97_GLBCTRL_MICINTM_DMA;
+ break;
+
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ break;
+ }
+
+ writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
+
+ s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
+
+ return 0;
+}
+
+static struct snd_soc_dai_ops s3c_ac97_dai_ops = {
+ .hw_params = s3c_ac97_hw_params,
+ .trigger = s3c_ac97_trigger,
+};
+
+static struct snd_soc_dai_ops s3c_ac97_mic_dai_ops = {
+ .hw_params = s3c_ac97_hw_mic_params,
+ .trigger = s3c_ac97_mic_trigger,
+};
+
+static struct snd_soc_dai_driver s3c_ac97_dai[] = {
+ [S3C_AC97_DAI_PCM] = {
+ .name = "samsung-ac97",
+ .ac97_control = 1,
+ .playback = {
+ .stream_name = "AC97 Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+ .capture = {
+ .stream_name = "AC97 Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+ .ops = &s3c_ac97_dai_ops,
+ },
+ [S3C_AC97_DAI_MIC] = {
+ .name = "samsung-ac97-mic",
+ .ac97_control = 1,
+ .capture = {
+ .stream_name = "AC97 Mic Capture",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+ .ops = &s3c_ac97_mic_dai_ops,
+ },
+};
+
+static __devinit int s3c_ac97_probe(struct platform_device *pdev)
+{
+ struct resource *mem_res, *dmatx_res, *dmarx_res, *dmamic_res, *irq_res;
+ struct s3c_audio_pdata *ac97_pdata;
+ int ret;
+
+ ac97_pdata = pdev->dev.platform_data;
+ if (!ac97_pdata || !ac97_pdata->cfg_gpio) {
+ dev_err(&pdev->dev, "cfg_gpio callback not provided!\n");
+ return -EINVAL;
+ }
+
+ /* Check for availability of necessary resource */
+ dmatx_res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!dmatx_res) {
+ dev_err(&pdev->dev, "Unable to get AC97-TX dma resource\n");
+ return -ENXIO;
+ }
+
+ dmarx_res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (!dmarx_res) {
+ dev_err(&pdev->dev, "Unable to get AC97-RX dma resource\n");
+ return -ENXIO;
+ }
+
+ dmamic_res = platform_get_resource(pdev, IORESOURCE_DMA, 2);
+ if (!dmamic_res) {
+ dev_err(&pdev->dev, "Unable to get AC97-MIC dma resource\n");
+ return -ENXIO;
+ }
+
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem_res) {
+ dev_err(&pdev->dev, "Unable to get register resource\n");
+ return -ENXIO;
+ }
+
+ irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!irq_res) {
+ dev_err(&pdev->dev, "AC97 IRQ not provided!\n");
+ return -ENXIO;
+ }
+
+ if (!request_mem_region(mem_res->start,
+ resource_size(mem_res), "ac97")) {
+ dev_err(&pdev->dev, "Unable to request register region\n");
+ return -EBUSY;
+ }
+
+ s3c_ac97_pcm_out.channel = dmatx_res->start;
+ s3c_ac97_pcm_out.dma_addr = mem_res->start + S3C_AC97_PCM_DATA;
+ s3c_ac97_pcm_in.channel = dmarx_res->start;
+ s3c_ac97_pcm_in.dma_addr = mem_res->start + S3C_AC97_PCM_DATA;
+ s3c_ac97_mic_in.channel = dmamic_res->start;
+ s3c_ac97_mic_in.dma_addr = mem_res->start + S3C_AC97_MIC_DATA;
+
+ init_completion(&s3c_ac97.done);
+ mutex_init(&s3c_ac97.lock);
+
+ s3c_ac97.regs = ioremap(mem_res->start, resource_size(mem_res));
+ if (s3c_ac97.regs == NULL) {
+ dev_err(&pdev->dev, "Unable to ioremap register region\n");
+ ret = -ENXIO;
+ goto err1;
+ }
+
+ s3c_ac97.ac97_clk = clk_get(&pdev->dev, "ac97");
+ if (IS_ERR(s3c_ac97.ac97_clk)) {
+ dev_err(&pdev->dev, "ac97 failed to get ac97_clock\n");
+ ret = -ENODEV;
+ goto err2;
+ }
+ clk_enable(s3c_ac97.ac97_clk);
+
+ if (ac97_pdata->cfg_gpio(pdev)) {
+ dev_err(&pdev->dev, "Unable to configure gpio\n");
+ ret = -EINVAL;
+ goto err3;
+ }
+
+ ret = request_irq(irq_res->start, s3c_ac97_irq,
+ IRQF_DISABLED, "AC97", NULL);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "ac97: interrupt request failed.\n");
+ goto err4;
+ }
+
+ ret = snd_soc_register_dais(&pdev->dev, s3c_ac97_dai,
+ ARRAY_SIZE(s3c_ac97_dai));
+ if (ret)
+ goto err5;
+
+ return 0;
+
+err5:
+ free_irq(irq_res->start, NULL);
+err4:
+err3:
+ clk_disable(s3c_ac97.ac97_clk);
+ clk_put(s3c_ac97.ac97_clk);
+err2:
+ iounmap(s3c_ac97.regs);
+err1:
+ release_mem_region(mem_res->start, resource_size(mem_res));
+
+ return ret;
+}
+
+static __devexit int s3c_ac97_remove(struct platform_device *pdev)
+{
+ struct resource *mem_res, *irq_res;
+
+ snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(s3c_ac97_dai));
+
+ irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (irq_res)
+ free_irq(irq_res->start, NULL);
+
+ clk_disable(s3c_ac97.ac97_clk);
+ clk_put(s3c_ac97.ac97_clk);
+
+ iounmap(s3c_ac97.regs);
+
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (mem_res)
+ release_mem_region(mem_res->start, resource_size(mem_res));
+
+ return 0;
+}
+
+static struct platform_driver s3c_ac97_driver = {
+ .probe = s3c_ac97_probe,
+ .remove = s3c_ac97_remove,
+ .driver = {
+ .name = "samsung-ac97",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init s3c_ac97_init(void)
+{
+ return platform_driver_register(&s3c_ac97_driver);
+}
+module_init(s3c_ac97_init);
+
+static void __exit s3c_ac97_exit(void)
+{
+ platform_driver_unregister(&s3c_ac97_driver);
+}
+module_exit(s3c_ac97_exit);
+
+MODULE_AUTHOR("Jaswinder Singh, <jassi.brar@samsung.com>");
+MODULE_DESCRIPTION("AC97 driver for the Samsung SoC");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:samsung-ac97");
--- /dev/null
+/* sound/soc/samsung/ac97.h
+ *
+ * ALSA SoC Audio Layer - S3C AC97 Controller driver
+ * Evolved from s3c2443-ac97.h
+ *
+ * Copyright (c) 2010 Samsung Electronics Co. Ltd
+ * Author: Jaswinder Singh <jassi.brar@samsung.com>
+ * Credits: Graeme Gregory, Sean Choi
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __S3C_AC97_H_
+#define __S3C_AC97_H_
+
+#define S3C_AC97_DAI_PCM 0
+#define S3C_AC97_DAI_MIC 1
+
+#endif /* __S3C_AC97_H_ */
--- /dev/null
+/*
+ * dma.c -- ALSA Soc Audio Layer
+ *
+ * (c) 2006 Wolfson Microelectronics PLC.
+ * Graeme Gregory graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
+ *
+ * Copyright 2004-2005 Simtec Electronics
+ * http://armlinux.simtec.co.uk/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/dma-mapping.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <asm/dma.h>
+#include <mach/hardware.h>
+#include <mach/dma.h>
+
+#include "dma.h"
+
+static const struct snd_pcm_hardware dma_hardware = {
+ .info = SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_U16_LE |
+ SNDRV_PCM_FMTBIT_U8 |
+ SNDRV_PCM_FMTBIT_S8,
+ .channels_min = 2,
+ .channels_max = 2,
+ .buffer_bytes_max = 128*1024,
+ .period_bytes_min = PAGE_SIZE,
+ .period_bytes_max = PAGE_SIZE*2,
+ .periods_min = 2,
+ .periods_max = 128,
+ .fifo_size = 32,
+};
+
+struct runtime_data {
+ spinlock_t lock;
+ int state;
+ unsigned int dma_loaded;
+ unsigned int dma_limit;
+ unsigned int dma_period;
+ dma_addr_t dma_start;
+ dma_addr_t dma_pos;
+ dma_addr_t dma_end;
+ struct s3c_dma_params *params;
+};
+
+/* dma_enqueue
+ *
+ * place a dma buffer onto the queue for the dma system
+ * to handle.
+*/
+static void dma_enqueue(struct snd_pcm_substream *substream)
+{
+ struct runtime_data *prtd = substream->runtime->private_data;
+ dma_addr_t pos = prtd->dma_pos;
+ unsigned int limit;
+ int ret;
+
+ pr_debug("Entered %s\n", __func__);
+
+ if (s3c_dma_has_circular())
+ limit = (prtd->dma_end - prtd->dma_start) / prtd->dma_period;
+ else
+ limit = prtd->dma_limit;
+
+ pr_debug("%s: loaded %d, limit %d\n",
+ __func__, prtd->dma_loaded, limit);
+
+ while (prtd->dma_loaded < limit) {
+ unsigned long len = prtd->dma_period;
+
+ pr_debug("dma_loaded: %d\n", prtd->dma_loaded);
+
+ if ((pos + len) > prtd->dma_end) {
+ len = prtd->dma_end - pos;
+ pr_debug("%s: corrected dma len %ld\n", __func__, len);
+ }
+
+ ret = s3c2410_dma_enqueue(prtd->params->channel,
+ substream, pos, len);
+
+ if (ret == 0) {
+ prtd->dma_loaded++;
+ pos += prtd->dma_period;
+ if (pos >= prtd->dma_end)
+ pos = prtd->dma_start;
+ } else
+ break;
+ }
+
+ prtd->dma_pos = pos;
+}
+
+static void audio_buffdone(struct s3c2410_dma_chan *channel,
+ void *dev_id, int size,
+ enum s3c2410_dma_buffresult result)
+{
+ struct snd_pcm_substream *substream = dev_id;
+ struct runtime_data *prtd;
+
+ pr_debug("Entered %s\n", __func__);
+
+ if (result == S3C2410_RES_ABORT || result == S3C2410_RES_ERR)
+ return;
+
+ prtd = substream->runtime->private_data;
+
+ if (substream)
+ snd_pcm_period_elapsed(substream);
+
+ spin_lock(&prtd->lock);
+ if (prtd->state & ST_RUNNING && !s3c_dma_has_circular()) {
+ prtd->dma_loaded--;
+ dma_enqueue(substream);
+ }
+
+ spin_unlock(&prtd->lock);
+}
+
+static int dma_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct runtime_data *prtd = runtime->private_data;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ unsigned long totbytes = params_buffer_bytes(params);
+ struct s3c_dma_params *dma =
+ snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+ int ret = 0;
+
+
+ pr_debug("Entered %s\n", __func__);
+
+ /* return if this is a bufferless transfer e.g.
+ * codec <--> BT codec or GSM modem -- lg FIXME */
+ if (!dma)
+ return 0;
+
+ /* this may get called several times by oss emulation
+ * with different params -HW */
+ if (prtd->params == NULL) {
+ /* prepare DMA */
+ prtd->params = dma;
+
+ pr_debug("params %p, client %p, channel %d\n", prtd->params,
+ prtd->params->client, prtd->params->channel);
+
+ ret = s3c2410_dma_request(prtd->params->channel,
+ prtd->params->client, NULL);
+
+ if (ret < 0) {
+ printk(KERN_ERR "failed to get dma channel\n");
+ return ret;
+ }
+
+ /* use the circular buffering if we have it available. */
+ if (s3c_dma_has_circular())
+ s3c2410_dma_setflags(prtd->params->channel,
+ S3C2410_DMAF_CIRCULAR);
+ }
+
+ s3c2410_dma_set_buffdone_fn(prtd->params->channel,
+ audio_buffdone);
+
+ snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
+
+ runtime->dma_bytes = totbytes;
+
+ spin_lock_irq(&prtd->lock);
+ prtd->dma_loaded = 0;
+ prtd->dma_limit = runtime->hw.periods_min;
+ prtd->dma_period = params_period_bytes(params);
+ prtd->dma_start = runtime->dma_addr;
+ prtd->dma_pos = prtd->dma_start;
+ prtd->dma_end = prtd->dma_start + totbytes;
+ spin_unlock_irq(&prtd->lock);
+
+ return 0;
+}
+
+static int dma_hw_free(struct snd_pcm_substream *substream)
+{
+ struct runtime_data *prtd = substream->runtime->private_data;
+
+ pr_debug("Entered %s\n", __func__);
+
+ /* TODO - do we need to ensure DMA flushed */
+ snd_pcm_set_runtime_buffer(substream, NULL);
+
+ if (prtd->params) {
+ s3c2410_dma_free(prtd->params->channel, prtd->params->client);
+ prtd->params = NULL;
+ }
+
+ return 0;
+}
+
+static int dma_prepare(struct snd_pcm_substream *substream)
+{
+ struct runtime_data *prtd = substream->runtime->private_data;
+ int ret = 0;
+
+ pr_debug("Entered %s\n", __func__);
+
+ /* return if this is a bufferless transfer e.g.
+ * codec <--> BT codec or GSM modem -- lg FIXME */
+ if (!prtd->params)
+ return 0;
+
+ /* channel needs configuring for mem=>device, increment memory addr,
+ * sync to pclk, half-word transfers to the IIS-FIFO. */
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ s3c2410_dma_devconfig(prtd->params->channel,
+ S3C2410_DMASRC_MEM,
+ prtd->params->dma_addr);
+ } else {
+ s3c2410_dma_devconfig(prtd->params->channel,
+ S3C2410_DMASRC_HW,
+ prtd->params->dma_addr);
+ }
+
+ s3c2410_dma_config(prtd->params->channel,
+ prtd->params->dma_size);
+
+ /* flush the DMA channel */
+ s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_FLUSH);
+ prtd->dma_loaded = 0;
+ prtd->dma_pos = prtd->dma_start;
+
+ /* enqueue dma buffers */
+ dma_enqueue(substream);
+
+ return ret;
+}
+
+static int dma_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct runtime_data *prtd = substream->runtime->private_data;
+ int ret = 0;
+
+ pr_debug("Entered %s\n", __func__);
+
+ spin_lock(&prtd->lock);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ prtd->state |= ST_RUNNING;
+ s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_START);
+ break;
+
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ prtd->state &= ~ST_RUNNING;
+ s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_STOP);
+ break;
+
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ spin_unlock(&prtd->lock);
+
+ return ret;
+}
+
+static snd_pcm_uframes_t
+dma_pointer(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct runtime_data *prtd = runtime->private_data;
+ unsigned long res;
+ dma_addr_t src, dst;
+
+ pr_debug("Entered %s\n", __func__);
+
+ spin_lock(&prtd->lock);
+ s3c2410_dma_getposition(prtd->params->channel, &src, &dst);
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ res = dst - prtd->dma_start;
+ else
+ res = src - prtd->dma_start;
+
+ spin_unlock(&prtd->lock);
+
+ pr_debug("Pointer %x %x\n", src, dst);
+
+ /* we seem to be getting the odd error from the pcm library due
+ * to out-of-bounds pointers. this is maybe due to the dma engine
+ * not having loaded the new values for the channel before being
+ * callled... (todo - fix )
+ */
+
+ if (res >= snd_pcm_lib_buffer_bytes(substream)) {
+ if (res == snd_pcm_lib_buffer_bytes(substream))
+ res = 0;
+ }
+
+ return bytes_to_frames(substream->runtime, res);
+}
+
+static int dma_open(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct runtime_data *prtd;
+
+ pr_debug("Entered %s\n", __func__);
+
+ snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+ snd_soc_set_runtime_hwparams(substream, &dma_hardware);
+
+ prtd = kzalloc(sizeof(struct runtime_data), GFP_KERNEL);
+ if (prtd == NULL)
+ return -ENOMEM;
+
+ spin_lock_init(&prtd->lock);
+
+ runtime->private_data = prtd;
+ return 0;
+}
+
+static int dma_close(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct runtime_data *prtd = runtime->private_data;
+
+ pr_debug("Entered %s\n", __func__);
+
+ if (!prtd)
+ pr_debug("dma_close called with prtd == NULL\n");
+
+ kfree(prtd);
+
+ return 0;
+}
+
+static int dma_mmap(struct snd_pcm_substream *substream,
+ struct vm_area_struct *vma)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ pr_debug("Entered %s\n", __func__);
+
+ return dma_mmap_writecombine(substream->pcm->card->dev, vma,
+ runtime->dma_area,
+ runtime->dma_addr,
+ runtime->dma_bytes);
+}
+
+static struct snd_pcm_ops dma_ops = {
+ .open = dma_open,
+ .close = dma_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = dma_hw_params,
+ .hw_free = dma_hw_free,
+ .prepare = dma_prepare,
+ .trigger = dma_trigger,
+ .pointer = dma_pointer,
+ .mmap = dma_mmap,
+};
+
+static int preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
+{
+ struct snd_pcm_substream *substream = pcm->streams[stream].substream;
+ struct snd_dma_buffer *buf = &substream->dma_buffer;
+ size_t size = dma_hardware.buffer_bytes_max;
+
+ pr_debug("Entered %s\n", __func__);
+
+ buf->dev.type = SNDRV_DMA_TYPE_DEV;
+ buf->dev.dev = pcm->card->dev;
+ buf->private_data = NULL;
+ buf->area = dma_alloc_writecombine(pcm->card->dev, size,
+ &buf->addr, GFP_KERNEL);
+ if (!buf->area)
+ return -ENOMEM;
+ buf->bytes = size;
+ return 0;
+}
+
+static void dma_free_dma_buffers(struct snd_pcm *pcm)
+{
+ struct snd_pcm_substream *substream;
+ struct snd_dma_buffer *buf;
+ int stream;
+
+ pr_debug("Entered %s\n", __func__);
+
+ for (stream = 0; stream < 2; stream++) {
+ substream = pcm->streams[stream].substream;
+ if (!substream)
+ continue;
+
+ buf = &substream->dma_buffer;
+ if (!buf->area)
+ continue;
+
+ dma_free_writecombine(pcm->card->dev, buf->bytes,
+ buf->area, buf->addr);
+ buf->area = NULL;
+ }
+}
+
+static u64 dma_mask = DMA_BIT_MASK(32);
+
+static int dma_new(struct snd_card *card,
+ struct snd_soc_dai *dai, struct snd_pcm *pcm)
+{
+ int ret = 0;
+
+ pr_debug("Entered %s\n", __func__);
+
+ if (!card->dev->dma_mask)
+ card->dev->dma_mask = &dma_mask;
+ if (!card->dev->coherent_dma_mask)
+ card->dev->coherent_dma_mask = 0xffffffff;
+
+ if (dai->driver->playback.channels_min) {
+ ret = preallocate_dma_buffer(pcm,
+ SNDRV_PCM_STREAM_PLAYBACK);
+ if (ret)
+ goto out;
+ }
+
+ if (dai->driver->capture.channels_min) {
+ ret = preallocate_dma_buffer(pcm,
+ SNDRV_PCM_STREAM_CAPTURE);
+ if (ret)
+ goto out;
+ }
+out:
+ return ret;
+}
+
+static struct snd_soc_platform_driver samsung_asoc_platform = {
+ .ops = &dma_ops,
+ .pcm_new = dma_new,
+ .pcm_free = dma_free_dma_buffers,
+};
+
+static int __devinit samsung_asoc_platform_probe(struct platform_device *pdev)
+{
+ return snd_soc_register_platform(&pdev->dev, &samsung_asoc_platform);
+}
+
+static int __devexit samsung_asoc_platform_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_platform(&pdev->dev);
+ return 0;
+}
+
+static struct platform_driver asoc_dma_driver = {
+ .driver = {
+ .name = "samsung-audio",
+ .owner = THIS_MODULE,
+ },
+
+ .probe = samsung_asoc_platform_probe,
+ .remove = __devexit_p(samsung_asoc_platform_remove),
+};
+
+static int __init samsung_asoc_init(void)
+{
+ return platform_driver_register(&asoc_dma_driver);
+}
+module_init(samsung_asoc_init);
+
+static void __exit samsung_asoc_exit(void)
+{
+ platform_driver_unregister(&asoc_dma_driver);
+}
+module_exit(samsung_asoc_exit);
+
+MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
+MODULE_DESCRIPTION("Samsung ASoC DMA Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:samsung-audio");
--- /dev/null
+/*
+ * dma.h --
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * ALSA PCM interface for the Samsung S3C24xx CPU
+ */
+
+#ifndef _S3C_AUDIO_H
+#define _S3C_AUDIO_H
+
+#define ST_RUNNING (1<<0)
+#define ST_OPENED (1<<1)
+
+struct s3c_dma_params {
+ struct s3c2410_dma_client *client; /* stream identifier */
+ int channel; /* Channel ID */
+ dma_addr_t dma_addr;
+ int dma_size; /* Size of the DMA transfer */
+};
+
+#define S3C24XX_DAI_I2S 0
+
+/* platform data */
+extern struct snd_ac97_bus_ops s3c24xx_ac97_ops;
+
+#endif
--- /dev/null
+/*
+ * goni_wm8994.c
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Chanwoo Choi <cw00.choi@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <asm/mach-types.h>
+#include <mach/gpio.h>
+#include <mach/regs-clock.h>
+
+#include <linux/mfd/wm8994/core.h>
+#include <linux/mfd/wm8994/registers.h>
+#include "../codecs/wm8994.h"
+#include "dma.h"
+#include "i2s.h"
+
+#define MACHINE_NAME 0
+#define CPU_VOICE_DAI 1
+
+static const char *aquila_str[] = {
+ [MACHINE_NAME] = "aquila",
+ [CPU_VOICE_DAI] = "aquila-voice-dai",
+};
+
+static struct snd_soc_card goni;
+static struct platform_device *goni_snd_device;
+
+/* 3.5 pie jack */
+static struct snd_soc_jack jack;
+
+/* 3.5 pie jack detection DAPM pins */
+static struct snd_soc_jack_pin jack_pins[] = {
+ {
+ .pin = "Headset Mic",
+ .mask = SND_JACK_MICROPHONE,
+ }, {
+ .pin = "Headset Stereophone",
+ .mask = SND_JACK_HEADPHONE | SND_JACK_MECHANICAL |
+ SND_JACK_AVOUT,
+ },
+};
+
+/* 3.5 pie jack detection gpios */
+static struct snd_soc_jack_gpio jack_gpios[] = {
+ {
+ .gpio = S5PV210_GPH0(6),
+ .name = "DET_3.5",
+ .report = SND_JACK_HEADSET | SND_JACK_MECHANICAL |
+ SND_JACK_AVOUT,
+ .debounce_time = 200,
+ },
+};
+
+static const struct snd_soc_dapm_widget goni_dapm_widgets[] = {
+ SND_SOC_DAPM_SPK("Ext Left Spk", NULL),
+ SND_SOC_DAPM_SPK("Ext Right Spk", NULL),
+ SND_SOC_DAPM_SPK("Ext Rcv", NULL),
+ SND_SOC_DAPM_HP("Headset Stereophone", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Main Mic", NULL),
+ SND_SOC_DAPM_MIC("2nd Mic", NULL),
+ SND_SOC_DAPM_LINE("Radio In", NULL),
+};
+
+static const struct snd_soc_dapm_route goni_dapm_routes[] = {
+ {"Ext Left Spk", NULL, "SPKOUTLP"},
+ {"Ext Left Spk", NULL, "SPKOUTLN"},
+
+ {"Ext Right Spk", NULL, "SPKOUTRP"},
+ {"Ext Right Spk", NULL, "SPKOUTRN"},
+
+ {"Ext Rcv", NULL, "HPOUT2N"},
+ {"Ext Rcv", NULL, "HPOUT2P"},
+
+ {"Headset Stereophone", NULL, "HPOUT1L"},
+ {"Headset Stereophone", NULL, "HPOUT1R"},
+
+ {"IN1RN", NULL, "Headset Mic"},
+ {"IN1RP", NULL, "Headset Mic"},
+
+ {"IN1RN", NULL, "2nd Mic"},
+ {"IN1RP", NULL, "2nd Mic"},
+
+ {"IN1LN", NULL, "Main Mic"},
+ {"IN1LP", NULL, "Main Mic"},
+
+ {"IN2LN", NULL, "Radio In"},
+ {"IN2RN", NULL, "Radio In"},
+};
+
+static int goni_wm8994_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ int ret;
+
+ /* add goni specific widgets */
+ snd_soc_dapm_new_controls(dapm, goni_dapm_widgets,
+ ARRAY_SIZE(goni_dapm_widgets));
+
+ /* set up goni specific audio routes */
+ snd_soc_dapm_add_routes(dapm, goni_dapm_routes,
+ ARRAY_SIZE(goni_dapm_routes));
+
+ /* set endpoints to not connected */
+ snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
+ snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
+ snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
+ snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
+ snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
+ snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
+
+ if (machine_is_aquila()) {
+ snd_soc_dapm_nc_pin(dapm, "SPKOUTRN");
+ snd_soc_dapm_nc_pin(dapm, "SPKOUTRP");
+ }
+
+ snd_soc_dapm_sync(dapm);
+
+ /* Headset jack detection */
+ ret = snd_soc_jack_new(&goni, "Headset Jack",
+ SND_JACK_HEADSET | SND_JACK_MECHANICAL | SND_JACK_AVOUT,
+ &jack);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_jack_add_pins(&jack, ARRAY_SIZE(jack_pins), jack_pins);
+ if (ret)
+ return ret;
+
+ ret = snd_soc_jack_add_gpios(&jack, ARRAY_SIZE(jack_gpios), jack_gpios);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int goni_hifi_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ unsigned int pll_out = 24000000;
+ int ret = 0;
+
+ /* set the cpu DAI configuration */
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec FLL */
+ ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, 0, pll_out,
+ params_rate(params) * 256);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
+ params_rate(params) * 256, SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct snd_soc_ops goni_hifi_ops = {
+ .hw_params = goni_hifi_hw_params,
+};
+
+static int goni_voice_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ unsigned int pll_out = 24000000;
+ int ret = 0;
+
+ if (params_rate(params) != 8000)
+ return -EINVAL;
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J |
+ SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec FLL */
+ ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL2, 0, pll_out,
+ params_rate(params) * 256);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL2,
+ params_rate(params) * 256, SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct snd_soc_dai_driver voice_dai = {
+ .name = "goni-voice-dai",
+ .id = 0,
+ .playback = {
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+ .capture = {
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+};
+
+static struct snd_soc_ops goni_voice_ops = {
+ .hw_params = goni_voice_hw_params,
+};
+
+static struct snd_soc_dai_link goni_dai[] = {
+{
+ .name = "WM8994",
+ .stream_name = "WM8994 HiFi",
+ .cpu_dai_name = "samsung-i2s.0",
+ .codec_dai_name = "wm8994-hifi",
+ .platform_name = "samsung-audio",
+ .codec_name = "wm8994-codec.0-0x1a",
+ .init = goni_wm8994_init,
+ .ops = &goni_hifi_ops,
+}, {
+ .name = "WM8994 Voice",
+ .stream_name = "Voice",
+ .cpu_dai_name = "goni-voice-dai",
+ .codec_dai_name = "wm8994-voice",
+ .platform_name = "samsung-audio",
+ .codec_name = "wm8994-codec.0-0x1a",
+ .ops = &goni_voice_ops,
+},
+};
+
+static struct snd_soc_card goni = {
+ .name = "goni",
+ .dai_link = goni_dai,
+ .num_links = ARRAY_SIZE(goni_dai),
+};
+
+static int __init goni_init(void)
+{
+ int ret;
+
+ if (machine_is_aquila()) {
+ voice_dai.name = aquila_str[CPU_VOICE_DAI];
+ goni_dai[1].cpu_dai_name = aquila_str[CPU_VOICE_DAI];
+ goni.name = aquila_str[MACHINE_NAME];
+ } else if (!machine_is_goni())
+ return -ENODEV;
+
+ goni_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!goni_snd_device)
+ return -ENOMEM;
+
+ /* register voice DAI here */
+ ret = snd_soc_register_dai(&goni_snd_device->dev, &voice_dai);
+ if (ret)
+ return ret;
+
+ platform_set_drvdata(goni_snd_device, &goni);
+ ret = platform_device_add(goni_snd_device);
+
+ if (ret)
+ platform_device_put(goni_snd_device);
+
+ return ret;
+}
+
+static void __exit goni_exit(void)
+{
+ platform_device_unregister(goni_snd_device);
+}
+
+module_init(goni_init);
+module_exit(goni_exit);
+
+/* Module information */
+MODULE_DESCRIPTION("ALSA SoC WM8994 GONI(S5PV210)");
+MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* sound/soc/samsung/i2s.c
+ *
+ * ALSA SoC Audio Layer - Samsung I2S Controller driver
+ *
+ * Copyright (c) 2010 Samsung Electronics Co. Ltd.
+ * Jaswinder Singh <jassi.brar@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <plat/audio.h>
+
+#include "dma.h"
+#include "i2s.h"
+
+#define I2SCON 0x0
+#define I2SMOD 0x4
+#define I2SFIC 0x8
+#define I2SPSR 0xc
+#define I2STXD 0x10
+#define I2SRXD 0x14
+#define I2SFICS 0x18
+#define I2STXDS 0x1c
+
+#define CON_RSTCLR (1 << 31)
+#define CON_FRXOFSTATUS (1 << 26)
+#define CON_FRXORINTEN (1 << 25)
+#define CON_FTXSURSTAT (1 << 24)
+#define CON_FTXSURINTEN (1 << 23)
+#define CON_TXSDMA_PAUSE (1 << 20)
+#define CON_TXSDMA_ACTIVE (1 << 18)
+
+#define CON_FTXURSTATUS (1 << 17)
+#define CON_FTXURINTEN (1 << 16)
+#define CON_TXFIFO2_EMPTY (1 << 15)
+#define CON_TXFIFO1_EMPTY (1 << 14)
+#define CON_TXFIFO2_FULL (1 << 13)
+#define CON_TXFIFO1_FULL (1 << 12)
+
+#define CON_LRINDEX (1 << 11)
+#define CON_TXFIFO_EMPTY (1 << 10)
+#define CON_RXFIFO_EMPTY (1 << 9)
+#define CON_TXFIFO_FULL (1 << 8)
+#define CON_RXFIFO_FULL (1 << 7)
+#define CON_TXDMA_PAUSE (1 << 6)
+#define CON_RXDMA_PAUSE (1 << 5)
+#define CON_TXCH_PAUSE (1 << 4)
+#define CON_RXCH_PAUSE (1 << 3)
+#define CON_TXDMA_ACTIVE (1 << 2)
+#define CON_RXDMA_ACTIVE (1 << 1)
+#define CON_ACTIVE (1 << 0)
+
+#define MOD_OPCLK_CDCLK_OUT (0 << 30)
+#define MOD_OPCLK_CDCLK_IN (1 << 30)
+#define MOD_OPCLK_BCLK_OUT (2 << 30)
+#define MOD_OPCLK_PCLK (3 << 30)
+#define MOD_OPCLK_MASK (3 << 30)
+#define MOD_TXS_IDMA (1 << 28) /* Sec_TXFIFO use I-DMA */
+
+#define MOD_BLCS_SHIFT 26
+#define MOD_BLCS_16BIT (0 << MOD_BLCS_SHIFT)
+#define MOD_BLCS_8BIT (1 << MOD_BLCS_SHIFT)
+#define MOD_BLCS_24BIT (2 << MOD_BLCS_SHIFT)
+#define MOD_BLCS_MASK (3 << MOD_BLCS_SHIFT)
+#define MOD_BLCP_SHIFT 24
+#define MOD_BLCP_16BIT (0 << MOD_BLCP_SHIFT)
+#define MOD_BLCP_8BIT (1 << MOD_BLCP_SHIFT)
+#define MOD_BLCP_24BIT (2 << MOD_BLCP_SHIFT)
+#define MOD_BLCP_MASK (3 << MOD_BLCP_SHIFT)
+
+#define MOD_C2DD_HHALF (1 << 21) /* Discard Higher-half */
+#define MOD_C2DD_LHALF (1 << 20) /* Discard Lower-half */
+#define MOD_C1DD_HHALF (1 << 19)
+#define MOD_C1DD_LHALF (1 << 18)
+#define MOD_DC2_EN (1 << 17)
+#define MOD_DC1_EN (1 << 16)
+#define MOD_BLC_16BIT (0 << 13)
+#define MOD_BLC_8BIT (1 << 13)
+#define MOD_BLC_24BIT (2 << 13)
+#define MOD_BLC_MASK (3 << 13)
+
+#define MOD_IMS_SYSMUX (1 << 10)
+#define MOD_SLAVE (1 << 11)
+#define MOD_TXONLY (0 << 8)
+#define MOD_RXONLY (1 << 8)
+#define MOD_TXRX (2 << 8)
+#define MOD_MASK (3 << 8)
+#define MOD_LR_LLOW (0 << 7)
+#define MOD_LR_RLOW (1 << 7)
+#define MOD_SDF_IIS (0 << 5)
+#define MOD_SDF_MSB (1 << 5)
+#define MOD_SDF_LSB (2 << 5)
+#define MOD_SDF_MASK (3 << 5)
+#define MOD_RCLK_256FS (0 << 3)
+#define MOD_RCLK_512FS (1 << 3)
+#define MOD_RCLK_384FS (2 << 3)
+#define MOD_RCLK_768FS (3 << 3)
+#define MOD_RCLK_MASK (3 << 3)
+#define MOD_BCLK_32FS (0 << 1)
+#define MOD_BCLK_48FS (1 << 1)
+#define MOD_BCLK_16FS (2 << 1)
+#define MOD_BCLK_24FS (3 << 1)
+#define MOD_BCLK_MASK (3 << 1)
+#define MOD_8BIT (1 << 0)
+
+#define MOD_CDCLKCON (1 << 12)
+
+#define PSR_PSREN (1 << 15)
+
+#define FIC_TX2COUNT(x) (((x) >> 24) & 0xf)
+#define FIC_TX1COUNT(x) (((x) >> 16) & 0xf)
+
+#define FIC_TXFLUSH (1 << 15)
+#define FIC_RXFLUSH (1 << 7)
+#define FIC_TXCOUNT(x) (((x) >> 8) & 0xf)
+#define FIC_RXCOUNT(x) (((x) >> 0) & 0xf)
+#define FICS_TXCOUNT(x) (((x) >> 8) & 0x7f)
+
+#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
+
+struct i2s_dai {
+ /* Platform device for this DAI */
+ struct platform_device *pdev;
+ /* IOREMAP'd SFRs */
+ void __iomem *addr;
+ /* Physical base address of SFRs */
+ u32 base;
+ /* Rate of RCLK source clock */
+ unsigned long rclk_srcrate;
+ /* Frame Clock */
+ unsigned frmclk;
+ /*
+ * Specifically requested RCLK,BCLK by MACHINE Driver.
+ * 0 indicates CPU driver is free to choose any value.
+ */
+ unsigned rfs, bfs;
+ /* I2S Controller's core clock */
+ struct clk *clk;
+ /* Clock for generating I2S signals */
+ struct clk *op_clk;
+ /* Array of clock names for op_clk */
+ const char **src_clk;
+ /* Pointer to the Primary_Fifo if this is Sec_Fifo, NULL otherwise */
+ struct i2s_dai *pri_dai;
+ /* Pointer to the Secondary_Fifo if it has one, NULL otherwise */
+ struct i2s_dai *sec_dai;
+#define DAI_OPENED (1 << 0) /* Dai is opened */
+#define DAI_MANAGER (1 << 1) /* Dai is the manager */
+ unsigned mode;
+ /* Driver for this DAI */
+ struct snd_soc_dai_driver i2s_dai_drv;
+ /* DMA parameters */
+ struct s3c_dma_params dma_playback;
+ struct s3c_dma_params dma_capture;
+ u32 quirks;
+ u32 suspend_i2smod;
+ u32 suspend_i2scon;
+ u32 suspend_i2spsr;
+};
+
+/* Lock for cross i/f checks */
+static DEFINE_SPINLOCK(lock);
+
+/* If this is the 'overlay' stereo DAI */
+static inline bool is_secondary(struct i2s_dai *i2s)
+{
+ return i2s->pri_dai ? true : false;
+}
+
+/* If operating in SoC-Slave mode */
+static inline bool is_slave(struct i2s_dai *i2s)
+{
+ return (readl(i2s->addr + I2SMOD) & MOD_SLAVE) ? true : false;
+}
+
+/* If this interface of the controller is transmitting data */
+static inline bool tx_active(struct i2s_dai *i2s)
+{
+ u32 active;
+
+ if (!i2s)
+ return false;
+
+ active = readl(i2s->addr + I2SMOD);
+
+ if (is_secondary(i2s))
+ active &= CON_TXSDMA_ACTIVE;
+ else
+ active &= CON_TXDMA_ACTIVE;
+
+ return active ? true : false;
+}
+
+/* If the other interface of the controller is transmitting data */
+static inline bool other_tx_active(struct i2s_dai *i2s)
+{
+ struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+
+ return tx_active(other);
+}
+
+/* If any interface of the controller is transmitting data */
+static inline bool any_tx_active(struct i2s_dai *i2s)
+{
+ return tx_active(i2s) || other_tx_active(i2s);
+}
+
+/* If this interface of the controller is receiving data */
+static inline bool rx_active(struct i2s_dai *i2s)
+{
+ u32 active;
+
+ if (!i2s)
+ return false;
+
+ active = readl(i2s->addr + I2SMOD) & CON_RXDMA_ACTIVE;
+
+ return active ? true : false;
+}
+
+/* If the other interface of the controller is receiving data */
+static inline bool other_rx_active(struct i2s_dai *i2s)
+{
+ struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+
+ return rx_active(other);
+}
+
+/* If any interface of the controller is receiving data */
+static inline bool any_rx_active(struct i2s_dai *i2s)
+{
+ return rx_active(i2s) || other_rx_active(i2s);
+}
+
+/* If the other DAI is transmitting or receiving data */
+static inline bool other_active(struct i2s_dai *i2s)
+{
+ return other_rx_active(i2s) || other_tx_active(i2s);
+}
+
+/* If this DAI is transmitting or receiving data */
+static inline bool this_active(struct i2s_dai *i2s)
+{
+ return tx_active(i2s) || rx_active(i2s);
+}
+
+/* If the controller is active anyway */
+static inline bool any_active(struct i2s_dai *i2s)
+{
+ return this_active(i2s) || other_active(i2s);
+}
+
+static inline struct i2s_dai *to_info(struct snd_soc_dai *dai)
+{
+ return snd_soc_dai_get_drvdata(dai);
+}
+
+static inline bool is_opened(struct i2s_dai *i2s)
+{
+ if (i2s && (i2s->mode & DAI_OPENED))
+ return true;
+ else
+ return false;
+}
+
+static inline bool is_manager(struct i2s_dai *i2s)
+{
+ if (is_opened(i2s) && (i2s->mode & DAI_MANAGER))
+ return true;
+ else
+ return false;
+}
+
+/* Read RCLK of I2S (in multiples of LRCLK) */
+static inline unsigned get_rfs(struct i2s_dai *i2s)
+{
+ u32 rfs = (readl(i2s->addr + I2SMOD) >> 3) & 0x3;
+
+ switch (rfs) {
+ case 3: return 768;
+ case 2: return 384;
+ case 1: return 512;
+ default: return 256;
+ }
+}
+
+/* Write RCLK of I2S (in multiples of LRCLK) */
+static inline void set_rfs(struct i2s_dai *i2s, unsigned rfs)
+{
+ u32 mod = readl(i2s->addr + I2SMOD);
+
+ mod &= ~MOD_RCLK_MASK;
+
+ switch (rfs) {
+ case 768:
+ mod |= MOD_RCLK_768FS;
+ break;
+ case 512:
+ mod |= MOD_RCLK_512FS;
+ break;
+ case 384:
+ mod |= MOD_RCLK_384FS;
+ break;
+ default:
+ mod |= MOD_RCLK_256FS;
+ break;
+ }
+
+ writel(mod, i2s->addr + I2SMOD);
+}
+
+/* Read Bit-Clock of I2S (in multiples of LRCLK) */
+static inline unsigned get_bfs(struct i2s_dai *i2s)
+{
+ u32 bfs = (readl(i2s->addr + I2SMOD) >> 1) & 0x3;
+
+ switch (bfs) {
+ case 3: return 24;
+ case 2: return 16;
+ case 1: return 48;
+ default: return 32;
+ }
+}
+
+/* Write Bit-Clock of I2S (in multiples of LRCLK) */
+static inline void set_bfs(struct i2s_dai *i2s, unsigned bfs)
+{
+ u32 mod = readl(i2s->addr + I2SMOD);
+
+ mod &= ~MOD_BCLK_MASK;
+
+ switch (bfs) {
+ case 48:
+ mod |= MOD_BCLK_48FS;
+ break;
+ case 32:
+ mod |= MOD_BCLK_32FS;
+ break;
+ case 24:
+ mod |= MOD_BCLK_24FS;
+ break;
+ case 16:
+ mod |= MOD_BCLK_16FS;
+ break;
+ default:
+ dev_err(&i2s->pdev->dev, "Wrong BCLK Divider!\n");
+ return;
+ }
+
+ writel(mod, i2s->addr + I2SMOD);
+}
+
+/* Sample-Size */
+static inline int get_blc(struct i2s_dai *i2s)
+{
+ int blc = readl(i2s->addr + I2SMOD);
+
+ blc = (blc >> 13) & 0x3;
+
+ switch (blc) {
+ case 2: return 24;
+ case 1: return 8;
+ default: return 16;
+ }
+}
+
+/* TX Channel Control */
+static void i2s_txctrl(struct i2s_dai *i2s, int on)
+{
+ void __iomem *addr = i2s->addr;
+ u32 con = readl(addr + I2SCON);
+ u32 mod = readl(addr + I2SMOD) & ~MOD_MASK;
+
+ if (on) {
+ con |= CON_ACTIVE;
+ con &= ~CON_TXCH_PAUSE;
+
+ if (is_secondary(i2s)) {
+ con |= CON_TXSDMA_ACTIVE;
+ con &= ~CON_TXSDMA_PAUSE;
+ } else {
+ con |= CON_TXDMA_ACTIVE;
+ con &= ~CON_TXDMA_PAUSE;
+ }
+
+ if (any_rx_active(i2s))
+ mod |= MOD_TXRX;
+ else
+ mod |= MOD_TXONLY;
+ } else {
+ if (is_secondary(i2s)) {
+ con |= CON_TXSDMA_PAUSE;
+ con &= ~CON_TXSDMA_ACTIVE;
+ } else {
+ con |= CON_TXDMA_PAUSE;
+ con &= ~CON_TXDMA_ACTIVE;
+ }
+
+ if (other_tx_active(i2s)) {
+ writel(con, addr + I2SCON);
+ return;
+ }
+
+ con |= CON_TXCH_PAUSE;
+
+ if (any_rx_active(i2s))
+ mod |= MOD_RXONLY;
+ else
+ con &= ~CON_ACTIVE;
+ }
+
+ writel(mod, addr + I2SMOD);
+ writel(con, addr + I2SCON);
+}
+
+/* RX Channel Control */
+static void i2s_rxctrl(struct i2s_dai *i2s, int on)
+{
+ void __iomem *addr = i2s->addr;
+ u32 con = readl(addr + I2SCON);
+ u32 mod = readl(addr + I2SMOD) & ~MOD_MASK;
+
+ if (on) {
+ con |= CON_RXDMA_ACTIVE | CON_ACTIVE;
+ con &= ~(CON_RXDMA_PAUSE | CON_RXCH_PAUSE);
+
+ if (any_tx_active(i2s))
+ mod |= MOD_TXRX;
+ else
+ mod |= MOD_RXONLY;
+ } else {
+ con |= CON_RXDMA_PAUSE | CON_RXCH_PAUSE;
+ con &= ~CON_RXDMA_ACTIVE;
+
+ if (any_tx_active(i2s))
+ mod |= MOD_TXONLY;
+ else
+ con &= ~CON_ACTIVE;
+ }
+
+ writel(mod, addr + I2SMOD);
+ writel(con, addr + I2SCON);
+}
+
+/* Flush FIFO of an interface */
+static inline void i2s_fifo(struct i2s_dai *i2s, u32 flush)
+{
+ void __iomem *fic;
+ u32 val;
+
+ if (!i2s)
+ return;
+
+ if (is_secondary(i2s))
+ fic = i2s->addr + I2SFICS;
+ else
+ fic = i2s->addr + I2SFIC;
+
+ /* Flush the FIFO */
+ writel(readl(fic) | flush, fic);
+
+ /* Be patient */
+ val = msecs_to_loops(1) / 1000; /* 1 usec */
+ while (--val)
+ cpu_relax();
+
+ writel(readl(fic) & ~flush, fic);
+}
+
+static int i2s_set_sysclk(struct snd_soc_dai *dai,
+ int clk_id, unsigned int rfs, int dir)
+{
+ struct i2s_dai *i2s = to_info(dai);
+ struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+ u32 mod = readl(i2s->addr + I2SMOD);
+
+ switch (clk_id) {
+ case SAMSUNG_I2S_CDCLK:
+ /* Shouldn't matter in GATING(CLOCK_IN) mode */
+ if (dir == SND_SOC_CLOCK_IN)
+ rfs = 0;
+
+ if ((rfs && other->rfs && (other->rfs != rfs)) ||
+ (any_active(i2s) &&
+ (((dir == SND_SOC_CLOCK_IN)
+ && !(mod & MOD_CDCLKCON)) ||
+ ((dir == SND_SOC_CLOCK_OUT)
+ && (mod & MOD_CDCLKCON))))) {
+ dev_err(&i2s->pdev->dev,
+ "%s:%d Other DAI busy\n", __func__, __LINE__);
+ return -EAGAIN;
+ }
+
+ if (dir == SND_SOC_CLOCK_IN)
+ mod |= MOD_CDCLKCON;
+ else
+ mod &= ~MOD_CDCLKCON;
+
+ i2s->rfs = rfs;
+ break;
+
+ case SAMSUNG_I2S_RCLKSRC_0: /* clock corrsponding to IISMOD[10] := 0 */
+ case SAMSUNG_I2S_RCLKSRC_1: /* clock corrsponding to IISMOD[10] := 1 */
+ if ((i2s->quirks & QUIRK_NO_MUXPSR)
+ || (clk_id == SAMSUNG_I2S_RCLKSRC_0))
+ clk_id = 0;
+ else
+ clk_id = 1;
+
+ if (!any_active(i2s)) {
+ if (i2s->op_clk) {
+ if ((clk_id && !(mod & MOD_IMS_SYSMUX)) ||
+ (!clk_id && (mod & MOD_IMS_SYSMUX))) {
+ clk_disable(i2s->op_clk);
+ clk_put(i2s->op_clk);
+ } else {
+ return 0;
+ }
+ }
+
+ i2s->op_clk = clk_get(&i2s->pdev->dev,
+ i2s->src_clk[clk_id]);
+ clk_enable(i2s->op_clk);
+ i2s->rclk_srcrate = clk_get_rate(i2s->op_clk);
+
+ /* Over-ride the other's */
+ if (other) {
+ other->op_clk = i2s->op_clk;
+ other->rclk_srcrate = i2s->rclk_srcrate;
+ }
+ } else if ((!clk_id && (mod & MOD_IMS_SYSMUX))
+ || (clk_id && !(mod & MOD_IMS_SYSMUX))) {
+ dev_err(&i2s->pdev->dev,
+ "%s:%d Other DAI busy\n", __func__, __LINE__);
+ return -EAGAIN;
+ } else {
+ /* Call can't be on the active DAI */
+ i2s->op_clk = other->op_clk;
+ i2s->rclk_srcrate = other->rclk_srcrate;
+ return 0;
+ }
+
+ if (clk_id == 0)
+ mod &= ~MOD_IMS_SYSMUX;
+ else
+ mod |= MOD_IMS_SYSMUX;
+ break;
+
+ default:
+ dev_err(&i2s->pdev->dev, "We don't serve that!\n");
+ return -EINVAL;
+ }
+
+ writel(mod, i2s->addr + I2SMOD);
+
+ return 0;
+}
+
+static int i2s_set_fmt(struct snd_soc_dai *dai,
+ unsigned int fmt)
+{
+ struct i2s_dai *i2s = to_info(dai);
+ u32 mod = readl(i2s->addr + I2SMOD);
+ u32 tmp = 0;
+
+ /* Format is priority */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_RIGHT_J:
+ tmp |= MOD_LR_RLOW;
+ tmp |= MOD_SDF_MSB;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ tmp |= MOD_LR_RLOW;
+ tmp |= MOD_SDF_LSB;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ tmp |= MOD_SDF_IIS;
+ break;
+ default:
+ dev_err(&i2s->pdev->dev, "Format not supported\n");
+ return -EINVAL;
+ }
+
+ /*
+ * INV flag is relative to the FORMAT flag - if set it simply
+ * flips the polarity specified by the Standard
+ */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ if (tmp & MOD_LR_RLOW)
+ tmp &= ~MOD_LR_RLOW;
+ else
+ tmp |= MOD_LR_RLOW;
+ break;
+ default:
+ dev_err(&i2s->pdev->dev, "Polarity not supported\n");
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ tmp |= MOD_SLAVE;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ /* Set default source clock in Master mode */
+ if (i2s->rclk_srcrate == 0)
+ i2s_set_sysclk(dai, SAMSUNG_I2S_RCLKSRC_0,
+ 0, SND_SOC_CLOCK_IN);
+ break;
+ default:
+ dev_err(&i2s->pdev->dev, "master/slave format not supported\n");
+ return -EINVAL;
+ }
+
+ if (any_active(i2s) &&
+ ((mod & (MOD_SDF_MASK | MOD_LR_RLOW
+ | MOD_SLAVE)) != tmp)) {
+ dev_err(&i2s->pdev->dev,
+ "%s:%d Other DAI busy\n", __func__, __LINE__);
+ return -EAGAIN;
+ }
+
+ mod &= ~(MOD_SDF_MASK | MOD_LR_RLOW | MOD_SLAVE);
+ mod |= tmp;
+ writel(mod, i2s->addr + I2SMOD);
+
+ return 0;
+}
+
+static int i2s_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+ struct i2s_dai *i2s = to_info(dai);
+ u32 mod = readl(i2s->addr + I2SMOD);
+
+ if (!is_secondary(i2s))
+ mod &= ~(MOD_DC2_EN | MOD_DC1_EN);
+
+ switch (params_channels(params)) {
+ case 6:
+ mod |= MOD_DC2_EN;
+ case 4:
+ mod |= MOD_DC1_EN;
+ break;
+ case 2:
+ break;
+ default:
+ dev_err(&i2s->pdev->dev, "%d channels not supported\n",
+ params_channels(params));
+ return -EINVAL;
+ }
+
+ if (is_secondary(i2s))
+ mod &= ~MOD_BLCS_MASK;
+ else
+ mod &= ~MOD_BLCP_MASK;
+
+ if (is_manager(i2s))
+ mod &= ~MOD_BLC_MASK;
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S8:
+ if (is_secondary(i2s))
+ mod |= MOD_BLCS_8BIT;
+ else
+ mod |= MOD_BLCP_8BIT;
+ if (is_manager(i2s))
+ mod |= MOD_BLC_8BIT;
+ break;
+ case SNDRV_PCM_FORMAT_S16_LE:
+ if (is_secondary(i2s))
+ mod |= MOD_BLCS_16BIT;
+ else
+ mod |= MOD_BLCP_16BIT;
+ if (is_manager(i2s))
+ mod |= MOD_BLC_16BIT;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ if (is_secondary(i2s))
+ mod |= MOD_BLCS_24BIT;
+ else
+ mod |= MOD_BLCP_24BIT;
+ if (is_manager(i2s))
+ mod |= MOD_BLC_24BIT;
+ break;
+ default:
+ dev_err(&i2s->pdev->dev, "Format(%d) not supported\n",
+ params_format(params));
+ return -EINVAL;
+ }
+ writel(mod, i2s->addr + I2SMOD);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ snd_soc_dai_set_dma_data(dai, substream,
+ (void *)&i2s->dma_playback);
+ else
+ snd_soc_dai_set_dma_data(dai, substream,
+ (void *)&i2s->dma_capture);
+
+ i2s->frmclk = params_rate(params);
+
+ return 0;
+}
+
+/* We set constraints on the substream acc to the version of I2S */
+static int i2s_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct i2s_dai *i2s = to_info(dai);
+ struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+ unsigned long flags;
+
+ spin_lock_irqsave(&lock, flags);
+
+ i2s->mode |= DAI_OPENED;
+
+ if (is_manager(other))
+ i2s->mode &= ~DAI_MANAGER;
+ else
+ i2s->mode |= DAI_MANAGER;
+
+ /* Enforce set_sysclk in Master mode */
+ i2s->rclk_srcrate = 0;
+
+ spin_unlock_irqrestore(&lock, flags);
+
+ return 0;
+}
+
+static void i2s_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct i2s_dai *i2s = to_info(dai);
+ struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+ unsigned long flags;
+
+ spin_lock_irqsave(&lock, flags);
+
+ i2s->mode &= ~DAI_OPENED;
+ i2s->mode &= ~DAI_MANAGER;
+
+ if (is_opened(other))
+ other->mode |= DAI_MANAGER;
+
+ /* Reset any constraint on RFS and BFS */
+ i2s->rfs = 0;
+ i2s->bfs = 0;
+
+ spin_unlock_irqrestore(&lock, flags);
+
+ /* Gate CDCLK by default */
+ if (!is_opened(other))
+ i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK,
+ 0, SND_SOC_CLOCK_IN);
+}
+
+static int config_setup(struct i2s_dai *i2s)
+{
+ struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+ unsigned rfs, bfs, blc;
+ u32 psr;
+
+ blc = get_blc(i2s);
+
+ bfs = i2s->bfs;
+
+ if (!bfs && other)
+ bfs = other->bfs;
+
+ /* Select least possible multiple(2) if no constraint set */
+ if (!bfs)
+ bfs = blc * 2;
+
+ rfs = i2s->rfs;
+
+ if (!rfs && other)
+ rfs = other->rfs;
+
+ if ((rfs == 256 || rfs == 512) && (blc == 24)) {
+ dev_err(&i2s->pdev->dev,
+ "%d-RFS not supported for 24-blc\n", rfs);
+ return -EINVAL;
+ }
+
+ if (!rfs) {
+ if (bfs == 16 || bfs == 32)
+ rfs = 256;
+ else
+ rfs = 384;
+ }
+
+ /* If already setup and running */
+ if (any_active(i2s) && (get_rfs(i2s) != rfs || get_bfs(i2s) != bfs)) {
+ dev_err(&i2s->pdev->dev,
+ "%s:%d Other DAI busy\n", __func__, __LINE__);
+ return -EAGAIN;
+ }
+
+ /* Don't bother RFS, BFS & PSR in Slave mode */
+ if (is_slave(i2s))
+ return 0;
+
+ set_bfs(i2s, bfs);
+ set_rfs(i2s, rfs);
+
+ if (!(i2s->quirks & QUIRK_NO_MUXPSR)) {
+ psr = i2s->rclk_srcrate / i2s->frmclk / rfs;
+ writel(((psr - 1) << 8) | PSR_PSREN, i2s->addr + I2SPSR);
+ dev_dbg(&i2s->pdev->dev,
+ "RCLK_SRC=%luHz PSR=%u, RCLK=%dfs, BCLK=%dfs\n",
+ i2s->rclk_srcrate, psr, rfs, bfs);
+ }
+
+ return 0;
+}
+
+static int i2s_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *dai)
+{
+ int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct i2s_dai *i2s = to_info(rtd->cpu_dai);
+ unsigned long flags;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ local_irq_save(flags);
+
+ if (capture)
+ i2s_fifo(i2s, FIC_RXFLUSH);
+ else
+ i2s_fifo(i2s, FIC_TXFLUSH);
+
+ if (config_setup(i2s)) {
+ local_irq_restore(flags);
+ return -EINVAL;
+ }
+
+ if (capture)
+ i2s_rxctrl(i2s, 1);
+ else
+ i2s_txctrl(i2s, 1);
+
+ local_irq_restore(flags);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ local_irq_save(flags);
+
+ if (capture)
+ i2s_rxctrl(i2s, 0);
+ else
+ i2s_txctrl(i2s, 0);
+
+ local_irq_restore(flags);
+ break;
+ }
+
+ return 0;
+}
+
+static int i2s_set_clkdiv(struct snd_soc_dai *dai,
+ int div_id, int div)
+{
+ struct i2s_dai *i2s = to_info(dai);
+ struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+
+ switch (div_id) {
+ case SAMSUNG_I2S_DIV_BCLK:
+ if ((any_active(i2s) && div && (get_bfs(i2s) != div))
+ || (other && other->bfs && (other->bfs != div))) {
+ dev_err(&i2s->pdev->dev,
+ "%s:%d Other DAI busy\n", __func__, __LINE__);
+ return -EAGAIN;
+ }
+ i2s->bfs = div;
+ break;
+ default:
+ dev_err(&i2s->pdev->dev,
+ "Invalid clock divider(%d)\n", div_id);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static snd_pcm_sframes_t
+i2s_delay(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+ struct i2s_dai *i2s = to_info(dai);
+ u32 reg = readl(i2s->addr + I2SFIC);
+ snd_pcm_sframes_t delay;
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ delay = FIC_RXCOUNT(reg);
+ else if (is_secondary(i2s))
+ delay = FICS_TXCOUNT(readl(i2s->addr + I2SFICS));
+ else
+ delay = FIC_TXCOUNT(reg);
+
+ return delay;
+}
+
+#ifdef CONFIG_PM
+static int i2s_suspend(struct snd_soc_dai *dai)
+{
+ struct i2s_dai *i2s = to_info(dai);
+
+ if (dai->active) {
+ i2s->suspend_i2smod = readl(i2s->addr + I2SMOD);
+ i2s->suspend_i2scon = readl(i2s->addr + I2SCON);
+ i2s->suspend_i2spsr = readl(i2s->addr + I2SPSR);
+ }
+
+ return 0;
+}
+
+static int i2s_resume(struct snd_soc_dai *dai)
+{
+ struct i2s_dai *i2s = to_info(dai);
+
+ if (dai->active) {
+ writel(i2s->suspend_i2scon, i2s->addr + I2SCON);
+ writel(i2s->suspend_i2smod, i2s->addr + I2SMOD);
+ writel(i2s->suspend_i2spsr, i2s->addr + I2SPSR);
+ }
+
+ return 0;
+}
+#else
+#define i2s_suspend NULL
+#define i2s_resume NULL
+#endif
+
+static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
+{
+ struct i2s_dai *i2s = to_info(dai);
+ struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+
+ if (other && other->clk) /* If this is probe on secondary */
+ goto probe_exit;
+
+ i2s->addr = ioremap(i2s->base, 0x100);
+ if (i2s->addr == NULL) {
+ dev_err(&i2s->pdev->dev, "cannot ioremap registers\n");
+ return -ENXIO;
+ }
+
+ i2s->clk = clk_get(&i2s->pdev->dev, "iis");
+ if (IS_ERR(i2s->clk)) {
+ dev_err(&i2s->pdev->dev, "failed to get i2s_clock\n");
+ iounmap(i2s->addr);
+ return -ENOENT;
+ }
+ clk_enable(i2s->clk);
+
+ if (other) {
+ other->addr = i2s->addr;
+ other->clk = i2s->clk;
+ }
+
+ if (i2s->quirks & QUIRK_NEED_RSTCLR)
+ writel(CON_RSTCLR, i2s->addr + I2SCON);
+
+probe_exit:
+ /* Reset any constraint on RFS and BFS */
+ i2s->rfs = 0;
+ i2s->bfs = 0;
+ i2s_txctrl(i2s, 0);
+ i2s_rxctrl(i2s, 0);
+ i2s_fifo(i2s, FIC_TXFLUSH);
+ i2s_fifo(other, FIC_TXFLUSH);
+ i2s_fifo(i2s, FIC_RXFLUSH);
+
+ /* Gate CDCLK by default */
+ if (!is_opened(other))
+ i2s_set_sysclk(dai, SAMSUNG_I2S_CDCLK,
+ 0, SND_SOC_CLOCK_IN);
+
+ return 0;
+}
+
+static int samsung_i2s_dai_remove(struct snd_soc_dai *dai)
+{
+ struct i2s_dai *i2s = snd_soc_dai_get_drvdata(dai);
+ struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
+
+ if (!other || !other->clk) {
+
+ if (i2s->quirks & QUIRK_NEED_RSTCLR)
+ writel(0, i2s->addr + I2SCON);
+
+ clk_disable(i2s->clk);
+ clk_put(i2s->clk);
+
+ iounmap(i2s->addr);
+ }
+
+ i2s->clk = NULL;
+
+ return 0;
+}
+
+static struct snd_soc_dai_ops samsung_i2s_dai_ops = {
+ .trigger = i2s_trigger,
+ .hw_params = i2s_hw_params,
+ .set_fmt = i2s_set_fmt,
+ .set_clkdiv = i2s_set_clkdiv,
+ .set_sysclk = i2s_set_sysclk,
+ .startup = i2s_startup,
+ .shutdown = i2s_shutdown,
+ .delay = i2s_delay,
+};
+
+#define SAMSUNG_I2S_RATES SNDRV_PCM_RATE_8000_96000
+
+#define SAMSUNG_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | \
+ SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+static __devinit
+struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
+{
+ struct i2s_dai *i2s;
+
+ i2s = kzalloc(sizeof(struct i2s_dai), GFP_KERNEL);
+ if (i2s == NULL)
+ return NULL;
+
+ i2s->pdev = pdev;
+ i2s->pri_dai = NULL;
+ i2s->sec_dai = NULL;
+ i2s->i2s_dai_drv.symmetric_rates = 1;
+ i2s->i2s_dai_drv.probe = samsung_i2s_dai_probe;
+ i2s->i2s_dai_drv.remove = samsung_i2s_dai_remove;
+ i2s->i2s_dai_drv.ops = &samsung_i2s_dai_ops;
+ i2s->i2s_dai_drv.suspend = i2s_suspend;
+ i2s->i2s_dai_drv.resume = i2s_resume;
+ i2s->i2s_dai_drv.playback.channels_min = 2;
+ i2s->i2s_dai_drv.playback.channels_max = 2;
+ i2s->i2s_dai_drv.playback.rates = SAMSUNG_I2S_RATES;
+ i2s->i2s_dai_drv.playback.formats = SAMSUNG_I2S_FMTS;
+
+ if (!sec) {
+ i2s->i2s_dai_drv.capture.channels_min = 2;
+ i2s->i2s_dai_drv.capture.channels_max = 2;
+ i2s->i2s_dai_drv.capture.rates = SAMSUNG_I2S_RATES;
+ i2s->i2s_dai_drv.capture.formats = SAMSUNG_I2S_FMTS;
+ } else { /* Create a new platform_device for Secondary */
+ i2s->pdev = platform_device_register_resndata(NULL,
+ pdev->name, pdev->id + SAMSUNG_I2S_SECOFF,
+ NULL, 0, NULL, 0);
+ if (IS_ERR(i2s->pdev)) {
+ kfree(i2s);
+ return NULL;
+ }
+ }
+
+ /* Pre-assign snd_soc_dai_set_drvdata */
+ dev_set_drvdata(&i2s->pdev->dev, i2s);
+
+ return i2s;
+}
+
+static __devinit int samsung_i2s_probe(struct platform_device *pdev)
+{
+ u32 dma_pl_chan, dma_cp_chan, dma_pl_sec_chan;
+ struct i2s_dai *pri_dai, *sec_dai = NULL;
+ struct s3c_audio_pdata *i2s_pdata;
+ struct samsung_i2s *i2s_cfg;
+ struct resource *res;
+ u32 regs_base, quirks;
+ int ret = 0;
+
+ /* Call during Seconday interface registration */
+ if (pdev->id >= SAMSUNG_I2S_SECOFF) {
+ sec_dai = dev_get_drvdata(&pdev->dev);
+ snd_soc_register_dai(&sec_dai->pdev->dev,
+ &sec_dai->i2s_dai_drv);
+ return 0;
+ }
+
+ i2s_pdata = pdev->dev.platform_data;
+ if (i2s_pdata == NULL) {
+ dev_err(&pdev->dev, "Can't work without s3c_audio_pdata\n");
+ return -EINVAL;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "Unable to get I2S-TX dma resource\n");
+ return -ENXIO;
+ }
+ dma_pl_chan = res->start;
+
+ res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (!res) {
+ dev_err(&pdev->dev, "Unable to get I2S-RX dma resource\n");
+ return -ENXIO;
+ }
+ dma_cp_chan = res->start;
+
+ res = platform_get_resource(pdev, IORESOURCE_DMA, 2);
+ if (res)
+ dma_pl_sec_chan = res->start;
+ else
+ dma_pl_sec_chan = 0;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "Unable to get I2S SFR address\n");
+ return -ENXIO;
+ }
+
+ if (!request_mem_region(res->start, resource_size(res),
+ "samsung-i2s")) {
+ dev_err(&pdev->dev, "Unable to request SFR region\n");
+ return -EBUSY;
+ }
+ regs_base = res->start;
+
+ i2s_cfg = &i2s_pdata->type.i2s;
+ quirks = i2s_cfg->quirks;
+
+ pri_dai = i2s_alloc_dai(pdev, false);
+ if (!pri_dai) {
+ dev_err(&pdev->dev, "Unable to alloc I2S_pri\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ pri_dai->dma_playback.dma_addr = regs_base + I2STXD;
+ pri_dai->dma_capture.dma_addr = regs_base + I2SRXD;
+ pri_dai->dma_playback.client =
+ (struct s3c2410_dma_client *)&pri_dai->dma_playback;
+ pri_dai->dma_capture.client =
+ (struct s3c2410_dma_client *)&pri_dai->dma_capture;
+ pri_dai->dma_playback.channel = dma_pl_chan;
+ pri_dai->dma_capture.channel = dma_cp_chan;
+ pri_dai->src_clk = i2s_cfg->src_clk;
+ pri_dai->dma_playback.dma_size = 4;
+ pri_dai->dma_capture.dma_size = 4;
+ pri_dai->base = regs_base;
+ pri_dai->quirks = quirks;
+
+ if (quirks & QUIRK_PRI_6CHAN)
+ pri_dai->i2s_dai_drv.playback.channels_max = 6;
+
+ if (quirks & QUIRK_SEC_DAI) {
+ sec_dai = i2s_alloc_dai(pdev, true);
+ if (!sec_dai) {
+ dev_err(&pdev->dev, "Unable to alloc I2S_sec\n");
+ ret = -ENOMEM;
+ goto err2;
+ }
+ sec_dai->dma_playback.dma_addr = regs_base + I2STXDS;
+ sec_dai->dma_playback.client =
+ (struct s3c2410_dma_client *)&sec_dai->dma_playback;
+ /* Use iDMA always if SysDMA not provided */
+ sec_dai->dma_playback.channel = dma_pl_sec_chan ? : -1;
+ sec_dai->src_clk = i2s_cfg->src_clk;
+ sec_dai->dma_playback.dma_size = 4;
+ sec_dai->base = regs_base;
+ sec_dai->quirks = quirks;
+ sec_dai->pri_dai = pri_dai;
+ pri_dai->sec_dai = sec_dai;
+ }
+
+ if (i2s_pdata->cfg_gpio && i2s_pdata->cfg_gpio(pdev)) {
+ dev_err(&pdev->dev, "Unable to configure gpio\n");
+ ret = -EINVAL;
+ goto err3;
+ }
+
+ snd_soc_register_dai(&pri_dai->pdev->dev, &pri_dai->i2s_dai_drv);
+
+ return 0;
+err3:
+ kfree(sec_dai);
+err2:
+ kfree(pri_dai);
+err1:
+ release_mem_region(regs_base, resource_size(res));
+
+ return ret;
+}
+
+static __devexit int samsung_i2s_remove(struct platform_device *pdev)
+{
+ struct i2s_dai *i2s, *other;
+
+ i2s = dev_get_drvdata(&pdev->dev);
+ other = i2s->pri_dai ? : i2s->sec_dai;
+
+ if (other) {
+ other->pri_dai = NULL;
+ other->sec_dai = NULL;
+ } else {
+ struct resource *res;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res)
+ release_mem_region(res->start, resource_size(res));
+ }
+
+ i2s->pri_dai = NULL;
+ i2s->sec_dai = NULL;
+
+ kfree(i2s);
+
+ snd_soc_unregister_dai(&pdev->dev);
+
+ return 0;
+}
+
+static struct platform_driver samsung_i2s_driver = {
+ .probe = samsung_i2s_probe,
+ .remove = samsung_i2s_remove,
+ .driver = {
+ .name = "samsung-i2s",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init samsung_i2s_init(void)
+{
+ return platform_driver_register(&samsung_i2s_driver);
+}
+module_init(samsung_i2s_init);
+
+static void __exit samsung_i2s_exit(void)
+{
+ platform_driver_unregister(&samsung_i2s_driver);
+}
+module_exit(samsung_i2s_exit);
+
+/* Module information */
+MODULE_AUTHOR("Jaswinder Singh, <jassi.brar@samsung.com>");
+MODULE_DESCRIPTION("Samsung I2S Interface");
+MODULE_ALIAS("platform:samsung-i2s");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* sound/soc/samsung/i2s.h
+ *
+ * ALSA SoC Audio Layer - Samsung I2S Controller driver
+ *
+ * Copyright (c) 2010 Samsung Electronics Co. Ltd.
+ * Jaswinder Singh <jassi.brar@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __SND_SOC_SAMSUNG_I2S_H
+#define __SND_SOC_SAMSUNG_I2S_H
+
+/*
+ * Maximum number of I2S blocks that any SoC can have.
+ * The secondary interface of a CPU dai(if there exists any),
+ * is indexed at [cpu-dai's ID + SAMSUNG_I2S_SECOFF]
+ */
+#define SAMSUNG_I2S_SECOFF 4
+
+#define SAMSUNG_I2S_DIV_BCLK 1
+
+#define SAMSUNG_I2S_RCLKSRC_0 0
+#define SAMSUNG_I2S_RCLKSRC_1 1
+#define SAMSUNG_I2S_CDCLK 2
+
+#endif /* __SND_SOC_SAMSUNG_I2S_H */
--- /dev/null
+/* sound/soc/samsung/jive_wm8750.c
+ *
+ * Copyright 2007,2008 Simtec Electronics
+ *
+ * Based on sound/soc/pxa/spitz.c
+ * Copyright 2005 Wolfson Microelectronics PLC.
+ * Copyright 2005 Openedhand Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+
+#include "dma.h"
+#include "s3c2412-i2s.h"
+
+#include "../codecs/wm8750.h"
+
+static const struct snd_soc_dapm_route audio_map[] = {
+ { "Headphone Jack", NULL, "LOUT1" },
+ { "Headphone Jack", NULL, "ROUT1" },
+ { "Internal Speaker", NULL, "LOUT2" },
+ { "Internal Speaker", NULL, "ROUT2" },
+ { "LINPUT1", NULL, "Line Input" },
+ { "RINPUT1", NULL, "Line Input" },
+};
+
+static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_SPK("Internal Speaker", NULL),
+ SND_SOC_DAPM_LINE("Line In", NULL),
+};
+
+static int jive_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct s3c_i2sv2_rate_calc div;
+ unsigned int clk = 0;
+ int ret = 0;
+
+ switch (params_rate(params)) {
+ case 8000:
+ case 16000:
+ case 48000:
+ case 96000:
+ clk = 12288000;
+ break;
+ case 11025:
+ case 22050:
+ case 44100:
+ clk = 11289600;
+ break;
+ }
+
+ s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
+ s3c_i2sv2_get_clock(cpu_dai));
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ /* set cpu DAI configuration */
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,
+ div.clk_div - 1);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct snd_soc_ops jive_ops = {
+ .hw_params = jive_hw_params,
+};
+
+static int jive_wm8750_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ int err;
+
+ /* These endpoints are not being used. */
+ snd_soc_dapm_nc_pin(dapm, "LINPUT2");
+ snd_soc_dapm_nc_pin(dapm, "RINPUT2");
+ snd_soc_dapm_nc_pin(dapm, "LINPUT3");
+ snd_soc_dapm_nc_pin(dapm, "RINPUT3");
+ snd_soc_dapm_nc_pin(dapm, "OUT3");
+ snd_soc_dapm_nc_pin(dapm, "MONO");
+
+ /* Add jive specific widgets */
+ err = snd_soc_dapm_new_controls(dapm, wm8750_dapm_widgets,
+ ARRAY_SIZE(wm8750_dapm_widgets));
+ if (err) {
+ printk(KERN_ERR "%s: failed to add widgets (%d)\n",
+ __func__, err);
+ return err;
+ }
+
+ snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+static struct snd_soc_dai_link jive_dai = {
+ .name = "wm8750",
+ .stream_name = "WM8750",
+ .cpu_dai_name = "s3c2412-i2s",
+ .codec_dai_name = "wm8750-hifi",
+ .platform_name = "samsung-audio",
+ .codec_name = "wm8750-codec.0-0x1a",
+ .init = jive_wm8750_init,
+ .ops = &jive_ops,
+};
+
+/* jive audio machine driver */
+static struct snd_soc_card snd_soc_machine_jive = {
+ .name = "Jive",
+ .dai_link = &jive_dai,
+ .num_links = 1,
+};
+
+static struct platform_device *jive_snd_device;
+
+static int __init jive_init(void)
+{
+ int ret;
+
+ if (!machine_is_jive())
+ return 0;
+
+ printk("JIVE WM8750 Audio support\n");
+
+ jive_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!jive_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive);
+ ret = platform_device_add(jive_snd_device);
+
+ if (ret)
+ platform_device_put(jive_snd_device);
+
+ return ret;
+}
+
+static void __exit jive_exit(void)
+{
+ platform_device_unregister(jive_snd_device);
+}
+
+module_init(jive_init);
+module_exit(jive_exit);
+
+MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
+MODULE_DESCRIPTION("ALSA SoC Jive Audio support");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * lm4857.h -- ALSA Soc Audio Layer
+ *
+ * Copyright 2007 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory
+ * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Revision history
+ * 18th Jun 2007 Initial version.
+ */
+
+#ifndef LM4857_H_
+#define LM4857_H_
+
+/* The register offsets in the cache array */
+#define LM4857_MVOL 0
+#define LM4857_LVOL 1
+#define LM4857_RVOL 2
+#define LM4857_CTRL 3
+
+/* the shifts required to set these bits */
+#define LM4857_3D 5
+#define LM4857_WAKEUP 5
+#define LM4857_EPGAIN 4
+
+#endif /*LM4857_H_*/
+
--- /dev/null
+/*
+ * SoC audio for ln2440sbc
+ *
+ * Copyright 2007 KonekTel, a.s.
+ * Author: Ivan Kuten
+ * ivan.kuten@promwad.com
+ *
+ * Heavily based on smdk2443_wm9710.c
+ * Copyright 2007 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory
+ * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include "dma.h"
+#include "ac97.h"
+
+static struct snd_soc_card ln2440sbc;
+
+static struct snd_soc_dai_link ln2440sbc_dai[] = {
+{
+ .name = "AC97",
+ .stream_name = "AC97 HiFi",
+ .cpu_dai_name = "samsung-ac97",
+ .codec_dai_name = "ac97-hifi",
+ .codec_name = "ac97-codec",
+ .platform_name = "samsung-audio",
+},
+};
+
+static struct snd_soc_card ln2440sbc = {
+ .name = "LN2440SBC",
+ .dai_link = ln2440sbc_dai,
+ .num_links = ARRAY_SIZE(ln2440sbc_dai),
+};
+
+static struct platform_device *ln2440sbc_snd_ac97_device;
+
+static int __init ln2440sbc_init(void)
+{
+ int ret;
+
+ ln2440sbc_snd_ac97_device = platform_device_alloc("soc-audio", -1);
+ if (!ln2440sbc_snd_ac97_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(ln2440sbc_snd_ac97_device, &ln2440sbc);
+ ret = platform_device_add(ln2440sbc_snd_ac97_device);
+
+ if (ret)
+ platform_device_put(ln2440sbc_snd_ac97_device);
+
+ return ret;
+}
+
+static void __exit ln2440sbc_exit(void)
+{
+ platform_device_unregister(ln2440sbc_snd_ac97_device);
+}
+
+module_init(ln2440sbc_init);
+module_exit(ln2440sbc_exit);
+
+/* Module information */
+MODULE_AUTHOR("Ivan Kuten");
+MODULE_DESCRIPTION("ALSA SoC ALC650 LN2440SBC");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * neo1973_gta02_wm8753.c -- SoC audio for Openmoko Freerunner(GTA02)
+ *
+ * Copyright 2007 Openmoko Inc
+ * Author: Graeme Gregory <graeme@openmoko.org>
+ * Copyright 2007 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory <linux@wolfsonmicro.com>
+ * Copyright 2009 Wolfson Microelectronics
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+
+#include <plat/regs-iis.h>
+
+#include <mach/regs-clock.h>
+#include <asm/io.h>
+#include <mach/gta02.h>
+#include "../codecs/wm8753.h"
+#include "dma.h"
+#include "s3c24xx-i2s.h"
+
+static struct snd_soc_card neo1973_gta02;
+
+static int neo1973_gta02_hifi_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ unsigned int pll_out = 0, bclk = 0;
+ int ret = 0;
+ unsigned long iis_clkrate;
+
+ iis_clkrate = s3c24xx_i2s_get_clockrate();
+
+ switch (params_rate(params)) {
+ case 8000:
+ case 16000:
+ pll_out = 12288000;
+ break;
+ case 48000:
+ bclk = WM8753_BCLK_DIV_4;
+ pll_out = 12288000;
+ break;
+ case 96000:
+ bclk = WM8753_BCLK_DIV_2;
+ pll_out = 12288000;
+ break;
+ case 11025:
+ bclk = WM8753_BCLK_DIV_16;
+ pll_out = 11289600;
+ break;
+ case 22050:
+ bclk = WM8753_BCLK_DIV_8;
+ pll_out = 11289600;
+ break;
+ case 44100:
+ bclk = WM8753_BCLK_DIV_4;
+ pll_out = 11289600;
+ break;
+ case 88200:
+ bclk = WM8753_BCLK_DIV_2;
+ pll_out = 11289600;
+ break;
+ }
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai,
+ SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set cpu DAI configuration */
+ ret = snd_soc_dai_set_fmt(cpu_dai,
+ SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ /* set MCLK division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
+ S3C2410_IISMOD_32FS);
+ if (ret < 0)
+ return ret;
+
+ /* set codec BCLK division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(codec_dai,
+ WM8753_BCLKDIV, bclk);
+ if (ret < 0)
+ return ret;
+
+ /* set prescaler division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
+ S3C24XX_PRESCALE(4, 4));
+ if (ret < 0)
+ return ret;
+
+ /* codec PLL input is PCLK/4 */
+ ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
+ iis_clkrate / 4, pll_out);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int neo1973_gta02_hifi_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+ /* disable the PLL */
+ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
+}
+
+/*
+ * Neo1973 WM8753 HiFi DAI opserations.
+ */
+static struct snd_soc_ops neo1973_gta02_hifi_ops = {
+ .hw_params = neo1973_gta02_hifi_hw_params,
+ .hw_free = neo1973_gta02_hifi_hw_free,
+};
+
+static int neo1973_gta02_voice_hw_params(
+ struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ unsigned int pcmdiv = 0;
+ int ret = 0;
+ unsigned long iis_clkrate;
+
+ iis_clkrate = s3c24xx_i2s_get_clockrate();
+
+ if (params_rate(params) != 8000)
+ return -EINVAL;
+ if (params_channels(params) != 1)
+ return -EINVAL;
+
+ pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
+
+ /* todo: gg check mode (DSP_B) against CSR datasheet */
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK,
+ 12288000, SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ /* set codec PCM division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV,
+ pcmdiv);
+ if (ret < 0)
+ return ret;
+
+ /* configure and enable PLL for 12.288MHz output */
+ ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
+ iis_clkrate / 4, 12288000);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int neo1973_gta02_voice_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+ /* disable the PLL */
+ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
+}
+
+static struct snd_soc_ops neo1973_gta02_voice_ops = {
+ .hw_params = neo1973_gta02_voice_hw_params,
+ .hw_free = neo1973_gta02_voice_hw_free,
+};
+
+#define LM4853_AMP 1
+#define LM4853_SPK 2
+
+static u8 lm4853_state;
+
+/* This has no effect, it exists only to maintain compatibility with
+ * existing ALSA state files.
+ */
+static int lm4853_set_state(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ int val = ucontrol->value.integer.value[0];
+
+ if (val)
+ lm4853_state |= LM4853_AMP;
+ else
+ lm4853_state &= ~LM4853_AMP;
+
+ return 0;
+}
+
+static int lm4853_get_state(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = lm4853_state & LM4853_AMP;
+
+ return 0;
+}
+
+static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ int val = ucontrol->value.integer.value[0];
+
+ if (val) {
+ lm4853_state |= LM4853_SPK;
+ gpio_set_value(GTA02_GPIO_HP_IN, 0);
+ } else {
+ lm4853_state &= ~LM4853_SPK;
+ gpio_set_value(GTA02_GPIO_HP_IN, 1);
+ }
+
+ return 0;
+}
+
+static int lm4853_get_spk(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = (lm4853_state & LM4853_SPK) >> 1;
+
+ return 0;
+}
+
+static int lm4853_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *k,
+ int event)
+{
+ gpio_set_value(GTA02_GPIO_AMP_SHUT, SND_SOC_DAPM_EVENT_OFF(event));
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
+ SND_SOC_DAPM_SPK("Stereo Out", lm4853_event),
+ SND_SOC_DAPM_LINE("GSM Line Out", NULL),
+ SND_SOC_DAPM_LINE("GSM Line In", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Handset Mic", NULL),
+ SND_SOC_DAPM_SPK("Handset Spk", NULL),
+};
+
+
+/* example machine audio_mapnections */
+static const struct snd_soc_dapm_route audio_map[] = {
+
+ /* Connections to the lm4853 amp */
+ {"Stereo Out", NULL, "LOUT1"},
+ {"Stereo Out", NULL, "ROUT1"},
+
+ /* Connections to the GSM Module */
+ {"GSM Line Out", NULL, "MONO1"},
+ {"GSM Line Out", NULL, "MONO2"},
+ {"RXP", NULL, "GSM Line In"},
+ {"RXN", NULL, "GSM Line In"},
+
+ /* Connections to Headset */
+ {"MIC1", NULL, "Mic Bias"},
+ {"Mic Bias", NULL, "Headset Mic"},
+
+ /* Call Mic */
+ {"MIC2", NULL, "Mic Bias"},
+ {"MIC2N", NULL, "Mic Bias"},
+ {"Mic Bias", NULL, "Handset Mic"},
+
+ /* Call Speaker */
+ {"Handset Spk", NULL, "LOUT2"},
+ {"Handset Spk", NULL, "ROUT2"},
+
+ /* Connect the ALC pins */
+ {"ACIN", NULL, "ACOP"},
+};
+
+static const struct snd_kcontrol_new wm8753_neo1973_gta02_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Stereo Out"),
+ SOC_DAPM_PIN_SWITCH("GSM Line Out"),
+ SOC_DAPM_PIN_SWITCH("GSM Line In"),
+ SOC_DAPM_PIN_SWITCH("Headset Mic"),
+ SOC_DAPM_PIN_SWITCH("Handset Mic"),
+ SOC_DAPM_PIN_SWITCH("Handset Spk"),
+
+ /* This has no effect, it exists only to maintain compatibility with
+ * existing ALSA state files.
+ */
+ SOC_SINGLE_EXT("Amp State Switch", 6, 0, 1, 0,
+ lm4853_get_state,
+ lm4853_set_state),
+ SOC_SINGLE_EXT("Amp Spk Switch", 7, 0, 1, 0,
+ lm4853_get_spk,
+ lm4853_set_spk),
+};
+
+/*
+ * This is an example machine initialisation for a wm8753 connected to a
+ * neo1973 GTA02.
+ */
+static int neo1973_gta02_wm8753_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ int err;
+
+ /* set up NC codec pins */
+ snd_soc_dapm_nc_pin(dapm, "OUT3");
+ snd_soc_dapm_nc_pin(dapm, "OUT4");
+ snd_soc_dapm_nc_pin(dapm, "LINE1");
+ snd_soc_dapm_nc_pin(dapm, "LINE2");
+
+ /* Add neo1973 gta02 specific widgets */
+ snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets,
+ ARRAY_SIZE(wm8753_dapm_widgets));
+
+ /* add neo1973 gta02 specific controls */
+ err = snd_soc_add_controls(codec, wm8753_neo1973_gta02_controls,
+ ARRAY_SIZE(wm8753_neo1973_gta02_controls));
+
+ if (err < 0)
+ return err;
+
+ /* set up neo1973 gta02 specific audio path audio_map */
+ snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+
+ /* set endpoints to default off mode */
+ snd_soc_dapm_disable_pin(dapm, "Stereo Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line In");
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Handset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Handset Spk");
+
+ /* allow audio paths from the GSM modem to run during suspend */
+ snd_soc_dapm_ignore_suspend(dapm, "Stereo Out");
+ snd_soc_dapm_ignore_suspend(dapm, "GSM Line Out");
+ snd_soc_dapm_ignore_suspend(dapm, "GSM Line In");
+ snd_soc_dapm_ignore_suspend(dapm, "Headset Mic");
+ snd_soc_dapm_ignore_suspend(dapm, "Handset Mic");
+ snd_soc_dapm_ignore_suspend(dapm, "Handset Spk");
+
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+/*
+ * BT Codec DAI
+ */
+static struct snd_soc_dai_driver bt_dai = {
+ .name = "bluetooth-dai",
+ .playback = {
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+ .capture = {
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+};
+
+static struct snd_soc_dai_link neo1973_gta02_dai[] = {
+{ /* Hifi Playback - for similatious use with voice below */
+ .name = "WM8753",
+ .stream_name = "WM8753 HiFi",
+ .cpu_dai_name = "s3c24xx-i2s",
+ .codec_dai_name = "wm8753-hifi",
+ .init = neo1973_gta02_wm8753_init,
+ .platform_name = "samsung-audio",
+ .codec_name = "wm8753-codec.0-0x1a",
+ .ops = &neo1973_gta02_hifi_ops,
+},
+{ /* Voice via BT */
+ .name = "Bluetooth",
+ .stream_name = "Voice",
+ .cpu_dai_name = "bluetooth-dai",
+ .codec_dai_name = "wm8753-voice",
+ .ops = &neo1973_gta02_voice_ops,
+ .codec_name = "wm8753-codec.0-0x1a",
+ .platform_name = "samsung-audio",
+},
+};
+
+static struct snd_soc_card neo1973_gta02 = {
+ .name = "neo1973-gta02",
+ .dai_link = neo1973_gta02_dai,
+ .num_links = ARRAY_SIZE(neo1973_gta02_dai),
+};
+
+static struct platform_device *neo1973_gta02_snd_device;
+
+static int __init neo1973_gta02_init(void)
+{
+ int ret;
+
+ if (!machine_is_neo1973_gta02()) {
+ printk(KERN_INFO
+ "Only GTA02 is supported by this ASoC driver\n");
+ return -ENODEV;
+ }
+
+ neo1973_gta02_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!neo1973_gta02_snd_device)
+ return -ENOMEM;
+
+ /* register bluetooth DAI here */
+ ret = snd_soc_register_dai(&neo1973_gta02_snd_device->dev, -1, &bt_dai);
+ if (ret) {
+ platform_device_put(neo1973_gta02_snd_device);
+ return ret;
+ }
+
+ platform_set_drvdata(neo1973_gta02_snd_device, &neo1973_gta02);
+ ret = platform_device_add(neo1973_gta02_snd_device);
+
+ if (ret) {
+ platform_device_put(neo1973_gta02_snd_device);
+ return ret;
+ }
+
+ /* Initialise GPIOs used by amp */
+ ret = gpio_request(GTA02_GPIO_HP_IN, "GTA02_HP_IN");
+ if (ret) {
+ pr_err("gta02_wm8753: Failed to register GPIO %d\n", GTA02_GPIO_HP_IN);
+ goto err_unregister_device;
+ }
+
+ ret = gpio_direction_output(GTA02_GPIO_HP_IN, 1);
+ if (ret) {
+ pr_err("gta02_wm8753: Failed to configure GPIO %d\n", GTA02_GPIO_HP_IN);
+ goto err_free_gpio_hp_in;
+ }
+
+ ret = gpio_request(GTA02_GPIO_AMP_SHUT, "GTA02_AMP_SHUT");
+ if (ret) {
+ pr_err("gta02_wm8753: Failed to register GPIO %d\n", GTA02_GPIO_AMP_SHUT);
+ goto err_free_gpio_hp_in;
+ }
+
+ ret = gpio_direction_output(GTA02_GPIO_AMP_SHUT, 1);
+ if (ret) {
+ pr_err("gta02_wm8753: Failed to configure GPIO %d\n", GTA02_GPIO_AMP_SHUT);
+ goto err_free_gpio_amp_shut;
+ }
+
+ return 0;
+
+err_free_gpio_amp_shut:
+ gpio_free(GTA02_GPIO_AMP_SHUT);
+err_free_gpio_hp_in:
+ gpio_free(GTA02_GPIO_HP_IN);
+err_unregister_device:
+ platform_device_unregister(neo1973_gta02_snd_device);
+ return ret;
+}
+module_init(neo1973_gta02_init);
+
+static void __exit neo1973_gta02_exit(void)
+{
+ snd_soc_unregister_dai(&neo1973_gta02_snd_device->dev, -1);
+ platform_device_unregister(neo1973_gta02_snd_device);
+ gpio_free(GTA02_GPIO_HP_IN);
+ gpio_free(GTA02_GPIO_AMP_SHUT);
+}
+module_exit(neo1973_gta02_exit);
+
+/* Module information */
+MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org");
+MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 GTA02");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * neo1973_wm8753.c -- SoC audio for Neo1973
+ *
+ * Copyright 2007 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory
+ * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include <asm/mach-types.h>
+#include <asm/hardware/scoop.h>
+#include <mach/regs-clock.h>
+#include <mach/regs-gpio.h>
+#include <mach/hardware.h>
+#include <linux/io.h>
+#include <mach/spi-gpio.h>
+
+#include <plat/regs-iis.h>
+
+#include "../codecs/wm8753.h"
+#include "lm4857.h"
+#include "dma.h"
+#include "s3c24xx-i2s.h"
+
+/* define the scenarios */
+#define NEO_AUDIO_OFF 0
+#define NEO_GSM_CALL_AUDIO_HANDSET 1
+#define NEO_GSM_CALL_AUDIO_HEADSET 2
+#define NEO_GSM_CALL_AUDIO_BLUETOOTH 3
+#define NEO_STEREO_TO_SPEAKERS 4
+#define NEO_STEREO_TO_HEADPHONES 5
+#define NEO_CAPTURE_HANDSET 6
+#define NEO_CAPTURE_HEADSET 7
+#define NEO_CAPTURE_BLUETOOTH 8
+
+static struct snd_soc_card neo1973;
+static struct i2c_client *i2c;
+
+static int neo1973_hifi_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ unsigned int pll_out = 0, bclk = 0;
+ int ret = 0;
+ unsigned long iis_clkrate;
+
+ pr_debug("Entered %s\n", __func__);
+
+ iis_clkrate = s3c24xx_i2s_get_clockrate();
+
+ switch (params_rate(params)) {
+ case 8000:
+ case 16000:
+ pll_out = 12288000;
+ break;
+ case 48000:
+ bclk = WM8753_BCLK_DIV_4;
+ pll_out = 12288000;
+ break;
+ case 96000:
+ bclk = WM8753_BCLK_DIV_2;
+ pll_out = 12288000;
+ break;
+ case 11025:
+ bclk = WM8753_BCLK_DIV_16;
+ pll_out = 11289600;
+ break;
+ case 22050:
+ bclk = WM8753_BCLK_DIV_8;
+ pll_out = 11289600;
+ break;
+ case 44100:
+ bclk = WM8753_BCLK_DIV_4;
+ pll_out = 11289600;
+ break;
+ case 88200:
+ bclk = WM8753_BCLK_DIV_2;
+ pll_out = 11289600;
+ break;
+ }
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai,
+ SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set cpu DAI configuration */
+ ret = snd_soc_dai_set_fmt(cpu_dai,
+ SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ /* set MCLK division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
+ S3C2410_IISMOD_32FS);
+ if (ret < 0)
+ return ret;
+
+ /* set codec BCLK division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk);
+ if (ret < 0)
+ return ret;
+
+ /* set prescaler division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
+ S3C24XX_PRESCALE(4, 4));
+ if (ret < 0)
+ return ret;
+
+ /* codec PLL input is PCLK/4 */
+ ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
+ iis_clkrate / 4, pll_out);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+ pr_debug("Entered %s\n", __func__);
+
+ /* disable the PLL */
+ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
+}
+
+/*
+ * Neo1973 WM8753 HiFi DAI opserations.
+ */
+static struct snd_soc_ops neo1973_hifi_ops = {
+ .hw_params = neo1973_hifi_hw_params,
+ .hw_free = neo1973_hifi_hw_free,
+};
+
+static int neo1973_voice_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ unsigned int pcmdiv = 0;
+ int ret = 0;
+ unsigned long iis_clkrate;
+
+ pr_debug("Entered %s\n", __func__);
+
+ iis_clkrate = s3c24xx_i2s_get_clockrate();
+
+ if (params_rate(params) != 8000)
+ return -EINVAL;
+ if (params_channels(params) != 1)
+ return -EINVAL;
+
+ pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
+
+ /* todo: gg check mode (DSP_B) against CSR datasheet */
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK, 12288000,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ /* set codec PCM division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv);
+ if (ret < 0)
+ return ret;
+
+ /* configure and enable PLL for 12.288MHz output */
+ ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
+ iis_clkrate / 4, 12288000);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int neo1973_voice_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+ pr_debug("Entered %s\n", __func__);
+
+ /* disable the PLL */
+ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
+}
+
+static struct snd_soc_ops neo1973_voice_ops = {
+ .hw_params = neo1973_voice_hw_params,
+ .hw_free = neo1973_voice_hw_free,
+};
+
+static int neo1973_scenario;
+
+static int neo1973_get_scenario(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = neo1973_scenario;
+ return 0;
+}
+
+static int set_scenario_endpoints(struct snd_soc_codec *codec, int scenario)
+{
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ pr_debug("Entered %s\n", __func__);
+
+ switch (neo1973_scenario) {
+ case NEO_AUDIO_OFF:
+ snd_soc_dapm_disable_pin(dapm, "Audio Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line In");
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Call Mic");
+ break;
+ case NEO_GSM_CALL_AUDIO_HANDSET:
+ snd_soc_dapm_enable_pin(dapm, "Audio Out");
+ snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
+ snd_soc_dapm_enable_pin(dapm, "GSM Line In");
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_enable_pin(dapm, "Call Mic");
+ break;
+ case NEO_GSM_CALL_AUDIO_HEADSET:
+ snd_soc_dapm_enable_pin(dapm, "Audio Out");
+ snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
+ snd_soc_dapm_enable_pin(dapm, "GSM Line In");
+ snd_soc_dapm_enable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Call Mic");
+ break;
+ case NEO_GSM_CALL_AUDIO_BLUETOOTH:
+ snd_soc_dapm_disable_pin(dapm, "Audio Out");
+ snd_soc_dapm_enable_pin(dapm, "GSM Line Out");
+ snd_soc_dapm_enable_pin(dapm, "GSM Line In");
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Call Mic");
+ break;
+ case NEO_STEREO_TO_SPEAKERS:
+ snd_soc_dapm_enable_pin(dapm, "Audio Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line In");
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Call Mic");
+ break;
+ case NEO_STEREO_TO_HEADPHONES:
+ snd_soc_dapm_enable_pin(dapm, "Audio Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line In");
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Call Mic");
+ break;
+ case NEO_CAPTURE_HANDSET:
+ snd_soc_dapm_disable_pin(dapm, "Audio Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line In");
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_enable_pin(dapm, "Call Mic");
+ break;
+ case NEO_CAPTURE_HEADSET:
+ snd_soc_dapm_disable_pin(dapm, "Audio Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line In");
+ snd_soc_dapm_enable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Call Mic");
+ break;
+ case NEO_CAPTURE_BLUETOOTH:
+ snd_soc_dapm_disable_pin(dapm, "Audio Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line In");
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Call Mic");
+ break;
+ default:
+ snd_soc_dapm_disable_pin(dapm, "Audio Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
+ snd_soc_dapm_disable_pin(dapm, "GSM Line In");
+ snd_soc_dapm_disable_pin(dapm, "Headset Mic");
+ snd_soc_dapm_disable_pin(dapm, "Call Mic");
+ }
+
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+static int neo1973_set_scenario(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ pr_debug("Entered %s\n", __func__);
+
+ if (neo1973_scenario == ucontrol->value.integer.value[0])
+ return 0;
+
+ neo1973_scenario = ucontrol->value.integer.value[0];
+ set_scenario_endpoints(codec, neo1973_scenario);
+ return 1;
+}
+
+static u8 lm4857_regs[4] = {0x00, 0x40, 0x80, 0xC0};
+
+static void lm4857_write_regs(void)
+{
+ pr_debug("Entered %s\n", __func__);
+
+ if (i2c_master_send(i2c, lm4857_regs, 4) != 4)
+ printk(KERN_ERR "lm4857: i2c write failed\n");
+}
+
+static int lm4857_get_reg(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ int reg = mc->reg;
+ int shift = mc->shift;
+ int mask = mc->max;
+
+ pr_debug("Entered %s\n", __func__);
+
+ ucontrol->value.integer.value[0] = (lm4857_regs[reg] >> shift) & mask;
+ return 0;
+}
+
+static int lm4857_set_reg(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ int reg = mc->reg;
+ int shift = mc->shift;
+ int mask = mc->max;
+
+ if (((lm4857_regs[reg] >> shift) & mask) ==
+ ucontrol->value.integer.value[0])
+ return 0;
+
+ lm4857_regs[reg] &= ~(mask << shift);
+ lm4857_regs[reg] |= ucontrol->value.integer.value[0] << shift;
+ lm4857_write_regs();
+ return 1;
+}
+
+static int lm4857_get_mode(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ u8 value = lm4857_regs[LM4857_CTRL] & 0x0F;
+
+ pr_debug("Entered %s\n", __func__);
+
+ if (value)
+ value -= 5;
+
+ ucontrol->value.integer.value[0] = value;
+ return 0;
+}
+
+static int lm4857_set_mode(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ u8 value = ucontrol->value.integer.value[0];
+
+ pr_debug("Entered %s\n", __func__);
+
+ if (value)
+ value += 5;
+
+ if ((lm4857_regs[LM4857_CTRL] & 0x0F) == value)
+ return 0;
+
+ lm4857_regs[LM4857_CTRL] &= 0xF0;
+ lm4857_regs[LM4857_CTRL] |= value;
+ lm4857_write_regs();
+ return 1;
+}
+
+static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
+ SND_SOC_DAPM_LINE("Audio Out", NULL),
+ SND_SOC_DAPM_LINE("GSM Line Out", NULL),
+ SND_SOC_DAPM_LINE("GSM Line In", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Call Mic", NULL),
+};
+
+
+static const struct snd_soc_dapm_route dapm_routes[] = {
+
+ /* Connections to the lm4857 amp */
+ {"Audio Out", NULL, "LOUT1"},
+ {"Audio Out", NULL, "ROUT1"},
+
+ /* Connections to the GSM Module */
+ {"GSM Line Out", NULL, "MONO1"},
+ {"GSM Line Out", NULL, "MONO2"},
+ {"RXP", NULL, "GSM Line In"},
+ {"RXN", NULL, "GSM Line In"},
+
+ /* Connections to Headset */
+ {"MIC1", NULL, "Mic Bias"},
+ {"Mic Bias", NULL, "Headset Mic"},
+
+ /* Call Mic */
+ {"MIC2", NULL, "Mic Bias"},
+ {"MIC2N", NULL, "Mic Bias"},
+ {"Mic Bias", NULL, "Call Mic"},
+
+ /* Connect the ALC pins */
+ {"ACIN", NULL, "ACOP"},
+};
+
+static const char *lm4857_mode[] = {
+ "Off",
+ "Call Speaker",
+ "Stereo Speakers",
+ "Stereo Speakers + Headphones",
+ "Headphones"
+};
+
+static const struct soc_enum lm4857_mode_enum[] = {
+ SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(lm4857_mode), lm4857_mode),
+};
+
+static const char *neo_scenarios[] = {
+ "Off",
+ "GSM Handset",
+ "GSM Headset",
+ "GSM Bluetooth",
+ "Speakers",
+ "Headphones",
+ "Capture Handset",
+ "Capture Headset",
+ "Capture Bluetooth"
+};
+
+static const struct soc_enum neo_scenario_enum[] = {
+ SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(neo_scenarios), neo_scenarios),
+};
+
+static const DECLARE_TLV_DB_SCALE(stereo_tlv, -4050, 150, 0);
+static const DECLARE_TLV_DB_SCALE(mono_tlv, -3450, 150, 0);
+
+static const struct snd_kcontrol_new wm8753_neo1973_controls[] = {
+ SOC_SINGLE_EXT_TLV("Amp Left Playback Volume", LM4857_LVOL, 0, 31, 0,
+ lm4857_get_reg, lm4857_set_reg, stereo_tlv),
+ SOC_SINGLE_EXT_TLV("Amp Right Playback Volume", LM4857_RVOL, 0, 31, 0,
+ lm4857_get_reg, lm4857_set_reg, stereo_tlv),
+ SOC_SINGLE_EXT_TLV("Amp Mono Playback Volume", LM4857_MVOL, 0, 31, 0,
+ lm4857_get_reg, lm4857_set_reg, mono_tlv),
+ SOC_ENUM_EXT("Amp Mode", lm4857_mode_enum[0],
+ lm4857_get_mode, lm4857_set_mode),
+ SOC_ENUM_EXT("Neo Mode", neo_scenario_enum[0],
+ neo1973_get_scenario, neo1973_set_scenario),
+ SOC_SINGLE_EXT("Amp Spk 3D Playback Switch", LM4857_LVOL, 5, 1, 0,
+ lm4857_get_reg, lm4857_set_reg),
+ SOC_SINGLE_EXT("Amp HP 3d Playback Switch", LM4857_RVOL, 5, 1, 0,
+ lm4857_get_reg, lm4857_set_reg),
+ SOC_SINGLE_EXT("Amp Fast Wakeup Playback Switch", LM4857_CTRL, 5, 1, 0,
+ lm4857_get_reg, lm4857_set_reg),
+ SOC_SINGLE_EXT("Amp Earpiece 6dB Playback Switch", LM4857_CTRL, 4, 1, 0,
+ lm4857_get_reg, lm4857_set_reg),
+};
+
+/*
+ * This is an example machine initialisation for a wm8753 connected to a
+ * neo1973 II. It is missing logic to detect hp/mic insertions and logic
+ * to re-route the audio in such an event.
+ */
+static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ int err;
+
+ pr_debug("Entered %s\n", __func__);
+
+ /* set up NC codec pins */
+ snd_soc_dapm_nc_pin(dapm, "LOUT2");
+ snd_soc_dapm_nc_pin(dapm, "ROUT2");
+ snd_soc_dapm_nc_pin(dapm, "OUT3");
+ snd_soc_dapm_nc_pin(dapm, "OUT4");
+ snd_soc_dapm_nc_pin(dapm, "LINE1");
+ snd_soc_dapm_nc_pin(dapm, "LINE2");
+
+ /* Add neo1973 specific widgets */
+ snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets,
+ ARRAY_SIZE(wm8753_dapm_widgets));
+
+ /* set endpoints to default mode */
+ set_scenario_endpoints(codec, NEO_AUDIO_OFF);
+
+ /* add neo1973 specific controls */
+ err = snd_soc_add_controls(codec, wm8753_neo1973_controls,
+ ARRAY_SIZE(8753_neo1973_controls));
+ if (err < 0)
+ return err;
+
+ /* set up neo1973 specific audio routes */
+ err = snd_soc_dapm_add_routes(dapm, dapm_routes,
+ ARRAY_SIZE(dapm_routes));
+
+ snd_soc_dapm_sync(dapm);
+ return 0;
+}
+
+/*
+ * BT Codec DAI
+ */
+static struct snd_soc_dai bt_dai = {
+ .name = "bluetooth-dai",
+ .playback = {
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+ .capture = {
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,},
+};
+
+static struct snd_soc_dai_link neo1973_dai[] = {
+{ /* Hifi Playback - for similatious use with voice below */
+ .name = "WM8753",
+ .stream_name = "WM8753 HiFi",
+ .platform_name = "samsung-audio",
+ .cpu_dai_name = "s3c24xx-i2s",
+ .codec_dai_name = "wm8753-hifi",
+ .codec_name = "wm8753-codec.0-0x1a",
+ .init = neo1973_wm8753_init,
+ .ops = &neo1973_hifi_ops,
+},
+{ /* Voice via BT */
+ .name = "Bluetooth",
+ .stream_name = "Voice",
+ .platform_name = "samsung-audio",
+ .cpu_dai_name = "bluetooth-dai",
+ .codec_dai_name = "wm8753-voice",
+ .codec_name = "wm8753-codec.0-0x1a",
+ .ops = &neo1973_voice_ops,
+},
+};
+
+static struct snd_soc_card neo1973 = {
+ .name = "neo1973",
+ .dai_link = neo1973_dai,
+ .num_links = ARRAY_SIZE(neo1973_dai),
+};
+
+static int lm4857_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ pr_debug("Entered %s\n", __func__);
+
+ i2c = client;
+
+ lm4857_write_regs();
+ return 0;
+}
+
+static int lm4857_i2c_remove(struct i2c_client *client)
+{
+ pr_debug("Entered %s\n", __func__);
+
+ i2c = NULL;
+
+ return 0;
+}
+
+static u8 lm4857_state;
+
+static int lm4857_suspend(struct i2c_client *dev, pm_message_t state)
+{
+ pr_debug("Entered %s\n", __func__);
+
+ dev_dbg(&dev->dev, "lm4857_suspend\n");
+ lm4857_state = lm4857_regs[LM4857_CTRL] & 0xf;
+ if (lm4857_state) {
+ lm4857_regs[LM4857_CTRL] &= 0xf0;
+ lm4857_write_regs();
+ }
+ return 0;
+}
+
+static int lm4857_resume(struct i2c_client *dev)
+{
+ pr_debug("Entered %s\n", __func__);
+
+ if (lm4857_state) {
+ lm4857_regs[LM4857_CTRL] |= (lm4857_state & 0x0f);
+ lm4857_write_regs();
+ }
+ return 0;
+}
+
+static void lm4857_shutdown(struct i2c_client *dev)
+{
+ pr_debug("Entered %s\n", __func__);
+
+ dev_dbg(&dev->dev, "lm4857_shutdown\n");
+ lm4857_regs[LM4857_CTRL] &= 0xf0;
+ lm4857_write_regs();
+}
+
+static const struct i2c_device_id lm4857_i2c_id[] = {
+ { "neo1973_lm4857", 0 },
+ { }
+};
+
+static struct i2c_driver lm4857_i2c_driver = {
+ .driver = {
+ .name = "LM4857 I2C Amp",
+ .owner = THIS_MODULE,
+ },
+ .suspend = lm4857_suspend,
+ .resume = lm4857_resume,
+ .shutdown = lm4857_shutdown,
+ .probe = lm4857_i2c_probe,
+ .remove = lm4857_i2c_remove,
+ .id_table = lm4857_i2c_id,
+};
+
+static struct platform_device *neo1973_snd_device;
+
+static int __init neo1973_init(void)
+{
+ int ret;
+
+ pr_debug("Entered %s\n", __func__);
+
+ if (!machine_is_neo1973_gta01()) {
+ printk(KERN_INFO
+ "Only GTA01 hardware supported by ASoC driver\n");
+ return -ENODEV;
+ }
+
+ neo1973_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!neo1973_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(neo1973_snd_device, &neo1973);
+ ret = platform_device_add(neo1973_snd_device);
+
+ if (ret) {
+ platform_device_put(neo1973_snd_device);
+ return ret;
+ }
+
+ ret = i2c_add_driver(&lm4857_i2c_driver);
+
+ if (ret != 0)
+ platform_device_unregister(neo1973_snd_device);
+
+ return ret;
+}
+
+static void __exit neo1973_exit(void)
+{
+ pr_debug("Entered %s\n", __func__);
+
+ i2c_del_driver(&lm4857_i2c_driver);
+ platform_device_unregister(neo1973_snd_device);
+}
+
+module_init(neo1973_init);
+module_exit(neo1973_exit);
+
+/* Module information */
+MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
+MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* sound/soc/samsung/pcm.c
+ *
+ * ALSA SoC Audio Layer - S3C PCM-Controller driver
+ *
+ * Copyright (c) 2009 Samsung Electronics Co. Ltd
+ * Author: Jaswinder Singh <jassi.brar@samsung.com>
+ * based upon I2S drivers by Ben Dooks.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include <plat/audio.h>
+#include <plat/dma.h>
+
+#include "dma.h"
+#include "pcm.h"
+
+static struct s3c2410_dma_client s3c_pcm_dma_client_out = {
+ .name = "PCM Stereo out"
+};
+
+static struct s3c2410_dma_client s3c_pcm_dma_client_in = {
+ .name = "PCM Stereo in"
+};
+
+static struct s3c_dma_params s3c_pcm_stereo_out[] = {
+ [0] = {
+ .client = &s3c_pcm_dma_client_out,
+ .dma_size = 4,
+ },
+ [1] = {
+ .client = &s3c_pcm_dma_client_out,
+ .dma_size = 4,
+ },
+};
+
+static struct s3c_dma_params s3c_pcm_stereo_in[] = {
+ [0] = {
+ .client = &s3c_pcm_dma_client_in,
+ .dma_size = 4,
+ },
+ [1] = {
+ .client = &s3c_pcm_dma_client_in,
+ .dma_size = 4,
+ },
+};
+
+static struct s3c_pcm_info s3c_pcm[2];
+
+static void s3c_pcm_snd_txctrl(struct s3c_pcm_info *pcm, int on)
+{
+ void __iomem *regs = pcm->regs;
+ u32 ctl, clkctl;
+
+ clkctl = readl(regs + S3C_PCM_CLKCTL);
+ ctl = readl(regs + S3C_PCM_CTL);
+ ctl &= ~(S3C_PCM_CTL_TXDIPSTICK_MASK
+ << S3C_PCM_CTL_TXDIPSTICK_SHIFT);
+
+ if (on) {
+ ctl |= S3C_PCM_CTL_TXDMA_EN;
+ ctl |= S3C_PCM_CTL_TXFIFO_EN;
+ ctl |= S3C_PCM_CTL_ENABLE;
+ ctl |= (0x4<<S3C_PCM_CTL_TXDIPSTICK_SHIFT);
+ clkctl |= S3C_PCM_CLKCTL_SERCLK_EN;
+ } else {
+ ctl &= ~S3C_PCM_CTL_TXDMA_EN;
+ ctl &= ~S3C_PCM_CTL_TXFIFO_EN;
+
+ if (!(ctl & S3C_PCM_CTL_RXFIFO_EN)) {
+ ctl &= ~S3C_PCM_CTL_ENABLE;
+ if (!pcm->idleclk)
+ clkctl |= S3C_PCM_CLKCTL_SERCLK_EN;
+ }
+ }
+
+ writel(clkctl, regs + S3C_PCM_CLKCTL);
+ writel(ctl, regs + S3C_PCM_CTL);
+}
+
+static void s3c_pcm_snd_rxctrl(struct s3c_pcm_info *pcm, int on)
+{
+ void __iomem *regs = pcm->regs;
+ u32 ctl, clkctl;
+
+ ctl = readl(regs + S3C_PCM_CTL);
+ clkctl = readl(regs + S3C_PCM_CLKCTL);
+ ctl &= ~(S3C_PCM_CTL_RXDIPSTICK_MASK
+ << S3C_PCM_CTL_RXDIPSTICK_SHIFT);
+
+ if (on) {
+ ctl |= S3C_PCM_CTL_RXDMA_EN;
+ ctl |= S3C_PCM_CTL_RXFIFO_EN;
+ ctl |= S3C_PCM_CTL_ENABLE;
+ ctl |= (0x20<<S3C_PCM_CTL_RXDIPSTICK_SHIFT);
+ clkctl |= S3C_PCM_CLKCTL_SERCLK_EN;
+ } else {
+ ctl &= ~S3C_PCM_CTL_RXDMA_EN;
+ ctl &= ~S3C_PCM_CTL_RXFIFO_EN;
+
+ if (!(ctl & S3C_PCM_CTL_TXFIFO_EN)) {
+ ctl &= ~S3C_PCM_CTL_ENABLE;
+ if (!pcm->idleclk)
+ clkctl |= S3C_PCM_CLKCTL_SERCLK_EN;
+ }
+ }
+
+ writel(clkctl, regs + S3C_PCM_CLKCTL);
+ writel(ctl, regs + S3C_PCM_CTL);
+}
+
+static int s3c_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(rtd->cpu_dai);
+ unsigned long flags;
+
+ dev_dbg(pcm->dev, "Entered %s\n", __func__);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ spin_lock_irqsave(&pcm->lock, flags);
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ s3c_pcm_snd_rxctrl(pcm, 1);
+ else
+ s3c_pcm_snd_txctrl(pcm, 1);
+
+ spin_unlock_irqrestore(&pcm->lock, flags);
+ break;
+
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ spin_lock_irqsave(&pcm->lock, flags);
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ s3c_pcm_snd_rxctrl(pcm, 0);
+ else
+ s3c_pcm_snd_txctrl(pcm, 0);
+
+ spin_unlock_irqrestore(&pcm->lock, flags);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int s3c_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *socdai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(rtd->cpu_dai);
+ struct s3c_dma_params *dma_data;
+ void __iomem *regs = pcm->regs;
+ struct clk *clk;
+ int sclk_div, sync_div;
+ unsigned long flags;
+ u32 clkctl;
+
+ dev_dbg(pcm->dev, "Entered %s\n", __func__);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dma_data = pcm->dma_playback;
+ else
+ dma_data = pcm->dma_capture;
+
+ snd_soc_dai_set_dma_data(rtd->cpu_dai, substream, dma_data);
+
+ /* Strictly check for sample size */
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&pcm->lock, flags);
+
+ /* Get hold of the PCMSOURCE_CLK */
+ clkctl = readl(regs + S3C_PCM_CLKCTL);
+ if (clkctl & S3C_PCM_CLKCTL_SERCLKSEL_PCLK)
+ clk = pcm->pclk;
+ else
+ clk = pcm->cclk;
+
+ /* Set the SCLK divider */
+ sclk_div = clk_get_rate(clk) / pcm->sclk_per_fs /
+ params_rate(params) / 2 - 1;
+
+ clkctl &= ~(S3C_PCM_CLKCTL_SCLKDIV_MASK
+ << S3C_PCM_CLKCTL_SCLKDIV_SHIFT);
+ clkctl |= ((sclk_div & S3C_PCM_CLKCTL_SCLKDIV_MASK)
+ << S3C_PCM_CLKCTL_SCLKDIV_SHIFT);
+
+ /* Set the SYNC divider */
+ sync_div = pcm->sclk_per_fs - 1;
+
+ clkctl &= ~(S3C_PCM_CLKCTL_SYNCDIV_MASK
+ << S3C_PCM_CLKCTL_SYNCDIV_SHIFT);
+ clkctl |= ((sync_div & S3C_PCM_CLKCTL_SYNCDIV_MASK)
+ << S3C_PCM_CLKCTL_SYNCDIV_SHIFT);
+
+ writel(clkctl, regs + S3C_PCM_CLKCTL);
+
+ spin_unlock_irqrestore(&pcm->lock, flags);
+
+ dev_dbg(pcm->dev, "PCMSOURCE_CLK-%lu SCLK=%ufs SCLK_DIV=%d SYNC_DIV=%d\n",
+ clk_get_rate(clk), pcm->sclk_per_fs,
+ sclk_div, sync_div);
+
+ return 0;
+}
+
+static int s3c_pcm_set_fmt(struct snd_soc_dai *cpu_dai,
+ unsigned int fmt)
+{
+ struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai);
+ void __iomem *regs = pcm->regs;
+ unsigned long flags;
+ int ret = 0;
+ u32 ctl;
+
+ dev_dbg(pcm->dev, "Entered %s\n", __func__);
+
+ spin_lock_irqsave(&pcm->lock, flags);
+
+ ctl = readl(regs + S3C_PCM_CTL);
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ /* Nothing to do, NB_NF by default */
+ break;
+ default:
+ dev_err(pcm->dev, "Unsupported clock inversion!\n");
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ /* Nothing to do, Master by default */
+ break;
+ default:
+ dev_err(pcm->dev, "Unsupported master/slave format!\n");
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_CLOCK_MASK) {
+ case SND_SOC_DAIFMT_CONT:
+ pcm->idleclk = 1;
+ break;
+ case SND_SOC_DAIFMT_GATED:
+ pcm->idleclk = 0;
+ break;
+ default:
+ dev_err(pcm->dev, "Invalid Clock gating request!\n");
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_DSP_A:
+ ctl |= S3C_PCM_CTL_TXMSB_AFTER_FSYNC;
+ ctl |= S3C_PCM_CTL_RXMSB_AFTER_FSYNC;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ ctl &= ~S3C_PCM_CTL_TXMSB_AFTER_FSYNC;
+ ctl &= ~S3C_PCM_CTL_RXMSB_AFTER_FSYNC;
+ break;
+ default:
+ dev_err(pcm->dev, "Unsupported data format!\n");
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ writel(ctl, regs + S3C_PCM_CTL);
+
+exit:
+ spin_unlock_irqrestore(&pcm->lock, flags);
+
+ return ret;
+}
+
+static int s3c_pcm_set_clkdiv(struct snd_soc_dai *cpu_dai,
+ int div_id, int div)
+{
+ struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai);
+
+ switch (div_id) {
+ case S3C_PCM_SCLK_PER_FS:
+ pcm->sclk_per_fs = div;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int s3c_pcm_set_sysclk(struct snd_soc_dai *cpu_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai);
+ void __iomem *regs = pcm->regs;
+ u32 clkctl = readl(regs + S3C_PCM_CLKCTL);
+
+ switch (clk_id) {
+ case S3C_PCM_CLKSRC_PCLK:
+ clkctl |= S3C_PCM_CLKCTL_SERCLKSEL_PCLK;
+ break;
+
+ case S3C_PCM_CLKSRC_MUX:
+ clkctl &= ~S3C_PCM_CLKCTL_SERCLKSEL_PCLK;
+
+ if (clk_get_rate(pcm->cclk) != freq)
+ clk_set_rate(pcm->cclk, freq);
+
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ writel(clkctl, regs + S3C_PCM_CLKCTL);
+
+ return 0;
+}
+
+static struct snd_soc_dai_ops s3c_pcm_dai_ops = {
+ .set_sysclk = s3c_pcm_set_sysclk,
+ .set_clkdiv = s3c_pcm_set_clkdiv,
+ .trigger = s3c_pcm_trigger,
+ .hw_params = s3c_pcm_hw_params,
+ .set_fmt = s3c_pcm_set_fmt,
+};
+
+#define S3C_PCM_RATES SNDRV_PCM_RATE_8000_96000
+
+#define S3C_PCM_DAI_DECLARE \
+ .symmetric_rates = 1, \
+ .ops = &s3c_pcm_dai_ops, \
+ .playback = { \
+ .channels_min = 2, \
+ .channels_max = 2, \
+ .rates = S3C_PCM_RATES, \
+ .formats = SNDRV_PCM_FMTBIT_S16_LE, \
+ }, \
+ .capture = { \
+ .channels_min = 2, \
+ .channels_max = 2, \
+ .rates = S3C_PCM_RATES, \
+ .formats = SNDRV_PCM_FMTBIT_S16_LE, \
+ }
+
+struct snd_soc_dai_driver s3c_pcm_dai[] = {
+ [0] = {
+ .name = "samsung-pcm.0",
+ S3C_PCM_DAI_DECLARE,
+ },
+ [1] = {
+ .name = "samsung-pcm.1",
+ S3C_PCM_DAI_DECLARE,
+ },
+};
+EXPORT_SYMBOL_GPL(s3c_pcm_dai);
+
+static __devinit int s3c_pcm_dev_probe(struct platform_device *pdev)
+{
+ struct s3c_pcm_info *pcm;
+ struct resource *mem_res, *dmatx_res, *dmarx_res;
+ struct s3c_audio_pdata *pcm_pdata;
+ int ret;
+
+ /* Check for valid device index */
+ if ((pdev->id < 0) || pdev->id >= ARRAY_SIZE(s3c_pcm)) {
+ dev_err(&pdev->dev, "id %d out of range\n", pdev->id);
+ return -EINVAL;
+ }
+
+ pcm_pdata = pdev->dev.platform_data;
+
+ /* Check for availability of necessary resource */
+ dmatx_res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!dmatx_res) {
+ dev_err(&pdev->dev, "Unable to get PCM-TX dma resource\n");
+ return -ENXIO;
+ }
+
+ dmarx_res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (!dmarx_res) {
+ dev_err(&pdev->dev, "Unable to get PCM-RX dma resource\n");
+ return -ENXIO;
+ }
+
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem_res) {
+ dev_err(&pdev->dev, "Unable to get register resource\n");
+ return -ENXIO;
+ }
+
+ if (pcm_pdata && pcm_pdata->cfg_gpio && pcm_pdata->cfg_gpio(pdev)) {
+ dev_err(&pdev->dev, "Unable to configure gpio\n");
+ return -EINVAL;
+ }
+
+ pcm = &s3c_pcm[pdev->id];
+ pcm->dev = &pdev->dev;
+
+ spin_lock_init(&pcm->lock);
+
+ /* Default is 128fs */
+ pcm->sclk_per_fs = 128;
+
+ pcm->cclk = clk_get(&pdev->dev, "audio-bus");
+ if (IS_ERR(pcm->cclk)) {
+ dev_err(&pdev->dev, "failed to get audio-bus\n");
+ ret = PTR_ERR(pcm->cclk);
+ goto err1;
+ }
+ clk_enable(pcm->cclk);
+
+ /* record our pcm structure for later use in the callbacks */
+ dev_set_drvdata(&pdev->dev, pcm);
+
+ if (!request_mem_region(mem_res->start,
+ resource_size(mem_res), "samsung-pcm")) {
+ dev_err(&pdev->dev, "Unable to request register region\n");
+ ret = -EBUSY;
+ goto err2;
+ }
+
+ pcm->regs = ioremap(mem_res->start, 0x100);
+ if (pcm->regs == NULL) {
+ dev_err(&pdev->dev, "cannot ioremap registers\n");
+ ret = -ENXIO;
+ goto err3;
+ }
+
+ pcm->pclk = clk_get(&pdev->dev, "pcm");
+ if (IS_ERR(pcm->pclk)) {
+ dev_err(&pdev->dev, "failed to get pcm_clock\n");
+ ret = -ENOENT;
+ goto err4;
+ }
+ clk_enable(pcm->pclk);
+
+ ret = snd_soc_register_dai(&pdev->dev, &s3c_pcm_dai[pdev->id]);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "failed to get pcm_clock\n");
+ goto err5;
+ }
+
+ s3c_pcm_stereo_in[pdev->id].dma_addr = mem_res->start
+ + S3C_PCM_RXFIFO;
+ s3c_pcm_stereo_out[pdev->id].dma_addr = mem_res->start
+ + S3C_PCM_TXFIFO;
+
+ s3c_pcm_stereo_in[pdev->id].channel = dmarx_res->start;
+ s3c_pcm_stereo_out[pdev->id].channel = dmatx_res->start;
+
+ pcm->dma_capture = &s3c_pcm_stereo_in[pdev->id];
+ pcm->dma_playback = &s3c_pcm_stereo_out[pdev->id];
+
+ return 0;
+
+err5:
+ clk_disable(pcm->pclk);
+ clk_put(pcm->pclk);
+err4:
+ iounmap(pcm->regs);
+err3:
+ release_mem_region(mem_res->start, resource_size(mem_res));
+err2:
+ clk_disable(pcm->cclk);
+ clk_put(pcm->cclk);
+err1:
+ return ret;
+}
+
+static __devexit int s3c_pcm_dev_remove(struct platform_device *pdev)
+{
+ struct s3c_pcm_info *pcm = &s3c_pcm[pdev->id];
+ struct resource *mem_res;
+
+ snd_soc_unregister_dai(&pdev->dev);
+
+ iounmap(pcm->regs);
+
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(mem_res->start, resource_size(mem_res));
+
+ clk_disable(pcm->cclk);
+ clk_disable(pcm->pclk);
+ clk_put(pcm->pclk);
+ clk_put(pcm->cclk);
+
+ return 0;
+}
+
+static struct platform_driver s3c_pcm_driver = {
+ .probe = s3c_pcm_dev_probe,
+ .remove = s3c_pcm_dev_remove,
+ .driver = {
+ .name = "samsung-pcm",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init s3c_pcm_init(void)
+{
+ return platform_driver_register(&s3c_pcm_driver);
+}
+module_init(s3c_pcm_init);
+
+static void __exit s3c_pcm_exit(void)
+{
+ platform_driver_unregister(&s3c_pcm_driver);
+}
+module_exit(s3c_pcm_exit);
+
+/* Module information */
+MODULE_AUTHOR("Jaswinder Singh, <jassi.brar@samsung.com>");
+MODULE_DESCRIPTION("S3C PCM Controller Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:samsung-pcm");
--- /dev/null
+/* sound/soc/samsung/pcm.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __S3C_PCM_H
+#define __S3C_PCM_H __FILE__
+
+/*Register Offsets */
+#define S3C_PCM_CTL (0x00)
+#define S3C_PCM_CLKCTL (0x04)
+#define S3C_PCM_TXFIFO (0x08)
+#define S3C_PCM_RXFIFO (0x0C)
+#define S3C_PCM_IRQCTL (0x10)
+#define S3C_PCM_IRQSTAT (0x14)
+#define S3C_PCM_FIFOSTAT (0x18)
+#define S3C_PCM_CLRINT (0x20)
+
+/* PCM_CTL Bit-Fields */
+#define S3C_PCM_CTL_TXDIPSTICK_MASK (0x3f)
+#define S3C_PCM_CTL_TXDIPSTICK_SHIFT (13)
+#define S3C_PCM_CTL_RXDIPSTICK_MASK (0x3f)
+#define S3C_PCM_CTL_RXDIPSTICK_SHIFT (7)
+#define S3C_PCM_CTL_TXDMA_EN (0x1<<6)
+#define S3C_PCM_CTL_RXDMA_EN (0x1<<5)
+#define S3C_PCM_CTL_TXMSB_AFTER_FSYNC (0x1<<4)
+#define S3C_PCM_CTL_RXMSB_AFTER_FSYNC (0x1<<3)
+#define S3C_PCM_CTL_TXFIFO_EN (0x1<<2)
+#define S3C_PCM_CTL_RXFIFO_EN (0x1<<1)
+#define S3C_PCM_CTL_ENABLE (0x1<<0)
+
+/* PCM_CLKCTL Bit-Fields */
+#define S3C_PCM_CLKCTL_SERCLK_EN (0x1<<19)
+#define S3C_PCM_CLKCTL_SERCLKSEL_PCLK (0x1<<18)
+#define S3C_PCM_CLKCTL_SCLKDIV_MASK (0x1ff)
+#define S3C_PCM_CLKCTL_SYNCDIV_MASK (0x1ff)
+#define S3C_PCM_CLKCTL_SCLKDIV_SHIFT (9)
+#define S3C_PCM_CLKCTL_SYNCDIV_SHIFT (0)
+
+/* PCM_TXFIFO Bit-Fields */
+#define S3C_PCM_TXFIFO_DVALID (0x1<<16)
+#define S3C_PCM_TXFIFO_DATA_MSK (0xffff<<0)
+
+/* PCM_RXFIFO Bit-Fields */
+#define S3C_PCM_RXFIFO_DVALID (0x1<<16)
+#define S3C_PCM_RXFIFO_DATA_MSK (0xffff<<0)
+
+/* PCM_IRQCTL Bit-Fields */
+#define S3C_PCM_IRQCTL_IRQEN (0x1<<14)
+#define S3C_PCM_IRQCTL_WRDEN (0x1<<12)
+#define S3C_PCM_IRQCTL_TXEMPTYEN (0x1<<11)
+#define S3C_PCM_IRQCTL_TXALMSTEMPTYEN (0x1<<10)
+#define S3C_PCM_IRQCTL_TXFULLEN (0x1<<9)
+#define S3C_PCM_IRQCTL_TXALMSTFULLEN (0x1<<8)
+#define S3C_PCM_IRQCTL_TXSTARVEN (0x1<<7)
+#define S3C_PCM_IRQCTL_TXERROVRFLEN (0x1<<6)
+#define S3C_PCM_IRQCTL_RXEMPTEN (0x1<<5)
+#define S3C_PCM_IRQCTL_RXALMSTEMPTEN (0x1<<4)
+#define S3C_PCM_IRQCTL_RXFULLEN (0x1<<3)
+#define S3C_PCM_IRQCTL_RXALMSTFULLEN (0x1<<2)
+#define S3C_PCM_IRQCTL_RXSTARVEN (0x1<<1)
+#define S3C_PCM_IRQCTL_RXERROVRFLEN (0x1<<0)
+
+/* PCM_IRQSTAT Bit-Fields */
+#define S3C_PCM_IRQSTAT_IRQPND (0x1<<13)
+#define S3C_PCM_IRQSTAT_WRD_XFER (0x1<<12)
+#define S3C_PCM_IRQSTAT_TXEMPTY (0x1<<11)
+#define S3C_PCM_IRQSTAT_TXALMSTEMPTY (0x1<<10)
+#define S3C_PCM_IRQSTAT_TXFULL (0x1<<9)
+#define S3C_PCM_IRQSTAT_TXALMSTFULL (0x1<<8)
+#define S3C_PCM_IRQSTAT_TXSTARV (0x1<<7)
+#define S3C_PCM_IRQSTAT_TXERROVRFL (0x1<<6)
+#define S3C_PCM_IRQSTAT_RXEMPT (0x1<<5)
+#define S3C_PCM_IRQSTAT_RXALMSTEMPT (0x1<<4)
+#define S3C_PCM_IRQSTAT_RXFULL (0x1<<3)
+#define S3C_PCM_IRQSTAT_RXALMSTFULL (0x1<<2)
+#define S3C_PCM_IRQSTAT_RXSTARV (0x1<<1)
+#define S3C_PCM_IRQSTAT_RXERROVRFL (0x1<<0)
+
+/* PCM_FIFOSTAT Bit-Fields */
+#define S3C_PCM_FIFOSTAT_TXCNT_MSK (0x3f<<14)
+#define S3C_PCM_FIFOSTAT_TXFIFOEMPTY (0x1<<13)
+#define S3C_PCM_FIFOSTAT_TXFIFOALMSTEMPTY (0x1<<12)
+#define S3C_PCM_FIFOSTAT_TXFIFOFULL (0x1<<11)
+#define S3C_PCM_FIFOSTAT_TXFIFOALMSTFULL (0x1<<10)
+#define S3C_PCM_FIFOSTAT_RXCNT_MSK (0x3f<<4)
+#define S3C_PCM_FIFOSTAT_RXFIFOEMPTY (0x1<<3)
+#define S3C_PCM_FIFOSTAT_RXFIFOALMSTEMPTY (0x1<<2)
+#define S3C_PCM_FIFOSTAT_RXFIFOFULL (0x1<<1)
+#define S3C_PCM_FIFOSTAT_RXFIFOALMSTFULL (0x1<<0)
+
+#define S3C_PCM_CLKSRC_PCLK 0
+#define S3C_PCM_CLKSRC_MUX 1
+
+#define S3C_PCM_SCLK_PER_FS 0
+
+/**
+ * struct s3c_pcm_info - S3C PCM Controller information
+ * @dev: The parent device passed to use from the probe.
+ * @regs: The pointer to the device register block.
+ * @dma_playback: DMA information for playback channel.
+ * @dma_capture: DMA information for capture channel.
+ */
+struct s3c_pcm_info {
+ spinlock_t lock;
+ struct device *dev;
+ void __iomem *regs;
+
+ unsigned int sclk_per_fs;
+
+ /* Whether to keep PCMSCLK enabled even when idle(no active xfer) */
+ unsigned int idleclk;
+
+ struct clk *pclk;
+ struct clk *cclk;
+
+ struct s3c_dma_params *dma_playback;
+ struct s3c_dma_params *dma_capture;
+};
+
+#endif /* __S3C_PCM_H */
--- /dev/null
+/* linux/include/asm-arm/plat-s3c24xx/regs-s3c2412-iis.h
+ *
+ * Copyright 2007 Simtec Electronics <linux@simtec.co.uk>
+ * http://armlinux.simtec.co.uk/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * S3C2412 IIS register definition
+*/
+
+#ifndef __ASM_ARCH_REGS_S3C2412_IIS_H
+#define __ASM_ARCH_REGS_S3C2412_IIS_H
+
+#define S3C2412_IISCON (0x00)
+#define S3C2412_IISMOD (0x04)
+#define S3C2412_IISFIC (0x08)
+#define S3C2412_IISPSR (0x0C)
+#define S3C2412_IISTXD (0x10)
+#define S3C2412_IISRXD (0x14)
+
+#define S5PC1XX_IISFICS 0x18
+#define S5PC1XX_IISTXDS 0x1C
+
+#define S5PC1XX_IISCON_SW_RST (1 << 31)
+#define S5PC1XX_IISCON_FRXOFSTATUS (1 << 26)
+#define S5PC1XX_IISCON_FRXORINTEN (1 << 25)
+#define S5PC1XX_IISCON_FTXSURSTAT (1 << 24)
+#define S5PC1XX_IISCON_FTXSURINTEN (1 << 23)
+#define S5PC1XX_IISCON_TXSDMAPAUSE (1 << 20)
+#define S5PC1XX_IISCON_TXSDMACTIVE (1 << 18)
+
+#define S3C64XX_IISCON_FTXURSTATUS (1 << 17)
+#define S3C64XX_IISCON_FTXURINTEN (1 << 16)
+#define S3C64XX_IISCON_TXFIFO2_EMPTY (1 << 15)
+#define S3C64XX_IISCON_TXFIFO1_EMPTY (1 << 14)
+#define S3C64XX_IISCON_TXFIFO2_FULL (1 << 13)
+#define S3C64XX_IISCON_TXFIFO1_FULL (1 << 12)
+
+#define S3C2412_IISCON_LRINDEX (1 << 11)
+#define S3C2412_IISCON_TXFIFO_EMPTY (1 << 10)
+#define S3C2412_IISCON_RXFIFO_EMPTY (1 << 9)
+#define S3C2412_IISCON_TXFIFO_FULL (1 << 8)
+#define S3C2412_IISCON_RXFIFO_FULL (1 << 7)
+#define S3C2412_IISCON_TXDMA_PAUSE (1 << 6)
+#define S3C2412_IISCON_RXDMA_PAUSE (1 << 5)
+#define S3C2412_IISCON_TXCH_PAUSE (1 << 4)
+#define S3C2412_IISCON_RXCH_PAUSE (1 << 3)
+#define S3C2412_IISCON_TXDMA_ACTIVE (1 << 2)
+#define S3C2412_IISCON_RXDMA_ACTIVE (1 << 1)
+#define S3C2412_IISCON_IIS_ACTIVE (1 << 0)
+
+#define S5PC1XX_IISMOD_OPCLK_CDCLK_OUT (0 << 30)
+#define S5PC1XX_IISMOD_OPCLK_CDCLK_IN (1 << 30)
+#define S5PC1XX_IISMOD_OPCLK_BCLK_OUT (2 << 30)
+#define S5PC1XX_IISMOD_OPCLK_PCLK (3 << 30)
+#define S5PC1XX_IISMOD_OPCLK_MASK (3 << 30)
+#define S5PC1XX_IISMOD_TXS_IDMA (1 << 28) /* Sec_TXFIFO use I-DMA */
+#define S5PC1XX_IISMOD_BLCS_MASK 0x3
+#define S5PC1XX_IISMOD_BLCS_SHIFT 26
+#define S5PC1XX_IISMOD_BLCP_MASK 0x3
+#define S5PC1XX_IISMOD_BLCP_SHIFT 24
+
+#define S3C64XX_IISMOD_C2DD_HHALF (1 << 21) /* Discard Higher-half */
+#define S3C64XX_IISMOD_C2DD_LHALF (1 << 20) /* Discard Lower-half */
+#define S3C64XX_IISMOD_C1DD_HHALF (1 << 19)
+#define S3C64XX_IISMOD_C1DD_LHALF (1 << 18)
+#define S3C64XX_IISMOD_DC2_EN (1 << 17)
+#define S3C64XX_IISMOD_DC1_EN (1 << 16)
+#define S3C64XX_IISMOD_BLC_16BIT (0 << 13)
+#define S3C64XX_IISMOD_BLC_8BIT (1 << 13)
+#define S3C64XX_IISMOD_BLC_24BIT (2 << 13)
+#define S3C64XX_IISMOD_BLC_MASK (3 << 13)
+
+#define S3C2412_IISMOD_IMS_SYSMUX (1 << 10)
+#define S3C2412_IISMOD_SLAVE (1 << 11)
+#define S3C2412_IISMOD_MODE_TXONLY (0 << 8)
+#define S3C2412_IISMOD_MODE_RXONLY (1 << 8)
+#define S3C2412_IISMOD_MODE_TXRX (2 << 8)
+#define S3C2412_IISMOD_MODE_MASK (3 << 8)
+#define S3C2412_IISMOD_LR_LLOW (0 << 7)
+#define S3C2412_IISMOD_LR_RLOW (1 << 7)
+#define S3C2412_IISMOD_SDF_IIS (0 << 5)
+#define S3C2412_IISMOD_SDF_MSB (1 << 5)
+#define S3C2412_IISMOD_SDF_LSB (2 << 5)
+#define S3C2412_IISMOD_SDF_MASK (3 << 5)
+#define S3C2412_IISMOD_RCLK_256FS (0 << 3)
+#define S3C2412_IISMOD_RCLK_512FS (1 << 3)
+#define S3C2412_IISMOD_RCLK_384FS (2 << 3)
+#define S3C2412_IISMOD_RCLK_768FS (3 << 3)
+#define S3C2412_IISMOD_RCLK_MASK (3 << 3)
+#define S3C2412_IISMOD_BCLK_32FS (0 << 1)
+#define S3C2412_IISMOD_BCLK_48FS (1 << 1)
+#define S3C2412_IISMOD_BCLK_16FS (2 << 1)
+#define S3C2412_IISMOD_BCLK_24FS (3 << 1)
+#define S3C2412_IISMOD_BCLK_MASK (3 << 1)
+#define S3C2412_IISMOD_8BIT (1 << 0)
+
+#define S3C64XX_IISMOD_CDCLKCON (1 << 12)
+
+#define S3C2412_IISPSR_PSREN (1 << 15)
+
+#define S3C64XX_IISFIC_TX2COUNT(x) (((x) >> 24) & 0xf)
+#define S3C64XX_IISFIC_TX1COUNT(x) (((x) >> 16) & 0xf)
+
+#define S3C2412_IISFIC_TXFLUSH (1 << 15)
+#define S3C2412_IISFIC_RXFLUSH (1 << 7)
+#define S3C2412_IISFIC_TXCOUNT(x) (((x) >> 8) & 0xf)
+#define S3C2412_IISFIC_RXCOUNT(x) (((x) >> 0) & 0xf)
+
+#define S5PC1XX_IISFICS_TXFLUSH (1 << 15)
+#define S5PC1XX_IISFICS_TXCOUNT(x) (((x) >> 8) & 0x7f)
+
+#endif /* __ASM_ARCH_REGS_S3C2412_IIS_H */
--- /dev/null
+/*
+ * rx1950.c -- ALSA Soc Audio Layer
+ *
+ * Copyright (c) 2010 Vasily Khoruzhick <anarsoul@gmail.com>
+ *
+ * Based on smdk2440.c and magician.c
+ *
+ * Authors: Graeme Gregory graeme.gregory@wolfsonmicro.com
+ * Philipp Zabel <philipp.zabel@gmail.com>
+ * Denis Grigoriev <dgreenday@gmail.com>
+ * Vasily Khoruzhick <anarsoul@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/clk.h>
+
+#include <sound/soc.h>
+#include <sound/uda1380.h>
+#include <sound/jack.h>
+
+#include <plat/regs-iis.h>
+
+#include <mach/regs-clock.h>
+
+#include <asm/mach-types.h>
+
+#include "dma.h"
+#include "s3c24xx-i2s.h"
+#include "../codecs/uda1380.h"
+
+static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd);
+static int rx1950_startup(struct snd_pcm_substream *substream);
+static int rx1950_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params);
+static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event);
+
+static unsigned int rates[] = {
+ 16000,
+ 44100,
+ 48000,
+};
+
+static struct snd_pcm_hw_constraint_list hw_rates = {
+ .count = ARRAY_SIZE(rates),
+ .list = rates,
+ .mask = 0,
+};
+
+static struct snd_soc_jack hp_jack;
+
+static struct snd_soc_jack_pin hp_jack_pins[] = {
+ {
+ .pin = "Headphone Jack",
+ .mask = SND_JACK_HEADPHONE,
+ },
+ {
+ .pin = "Speaker",
+ .mask = SND_JACK_HEADPHONE,
+ .invert = 1,
+ },
+};
+
+static struct snd_soc_jack_gpio hp_jack_gpios[] = {
+ [0] = {
+ .gpio = S3C2410_GPG(12),
+ .name = "hp-gpio",
+ .report = SND_JACK_HEADPHONE,
+ .invert = 1,
+ .debounce_time = 200,
+ },
+};
+
+static struct snd_soc_ops rx1950_ops = {
+ .startup = rx1950_startup,
+ .hw_params = rx1950_hw_params,
+};
+
+/* s3c24xx digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link rx1950_uda1380_dai[] = {
+ {
+ .name = "uda1380",
+ .stream_name = "UDA1380 Duplex",
+ .cpu_dai_name = "s3c24xx-iis",
+ .codec_dai_name = "uda1380-hifi",
+ .init = rx1950_uda1380_init,
+ .platform_name = "samsung-audio",
+ .codec_name = "uda1380-codec.0-001a",
+ .ops = &rx1950_ops,
+ },
+};
+
+static struct snd_soc_card rx1950_asoc = {
+ .name = "rx1950",
+ .dai_link = rx1950_uda1380_dai,
+ .num_links = ARRAY_SIZE(rx1950_uda1380_dai),
+};
+
+/* rx1950 machine dapm widgets */
+static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_MIC("Mic Jack", NULL),
+ SND_SOC_DAPM_SPK("Speaker", rx1950_spk_power),
+};
+
+/* rx1950 machine audio_map */
+static const struct snd_soc_dapm_route audio_map[] = {
+ /* headphone connected to VOUTLHP, VOUTRHP */
+ {"Headphone Jack", NULL, "VOUTLHP"},
+ {"Headphone Jack", NULL, "VOUTRHP"},
+
+ /* ext speaker connected to VOUTL, VOUTR */
+ {"Speaker", NULL, "VOUTL"},
+ {"Speaker", NULL, "VOUTR"},
+
+ /* mic is connected to VINM */
+ {"VINM", NULL, "Mic Jack"},
+};
+
+static struct platform_device *s3c24xx_snd_device;
+
+static int rx1950_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ runtime->hw.rate_min = hw_rates.list[0];
+ runtime->hw.rate_max = hw_rates.list[hw_rates.count - 1];
+ runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
+
+ return snd_pcm_hw_constraint_list(runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ &hw_rates);
+}
+
+static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ if (SND_SOC_DAPM_EVENT_ON(event))
+ gpio_set_value(S3C2410_GPA(1), 1);
+ else
+ gpio_set_value(S3C2410_GPA(1), 0);
+
+ return 0;
+}
+
+static int rx1950_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ int div;
+ int ret;
+ unsigned int rate = params_rate(params);
+ int clk_source, fs_mode;
+
+ switch (rate) {
+ case 16000:
+ case 48000:
+ clk_source = S3C24XX_CLKSRC_PCLK;
+ fs_mode = S3C2410_IISMOD_256FS;
+ div = s3c24xx_i2s_get_clockrate() / (256 * rate);
+ if (s3c24xx_i2s_get_clockrate() % (256 * rate) > (128 * rate))
+ div++;
+ break;
+ case 44100:
+ case 88200:
+ clk_source = S3C24XX_CLKSRC_MPLL;
+ fs_mode = S3C2410_IISMOD_384FS;
+ div = 1;
+ break;
+ default:
+ printk(KERN_ERR "%s: rate %d is not supported\n",
+ __func__, rate);
+ return -EINVAL;
+ }
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ /* set cpu DAI configuration */
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ /* select clock source */
+ ret = snd_soc_dai_set_sysclk(cpu_dai, clk_source, rate,
+ SND_SOC_CLOCK_OUT);
+ if (ret < 0)
+ return ret;
+
+ /* set MCLK division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
+ fs_mode);
+ if (ret < 0)
+ return ret;
+
+ /* set BCLK division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_BCLK,
+ S3C2410_IISMOD_32FS);
+ if (ret < 0)
+ return ret;
+
+ /* set prescaler division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
+ S3C24XX_PRESCALE(div, div));
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ int err;
+
+ /* Add rx1950 specific widgets */
+ err = snd_soc_dapm_new_controls(dapm, uda1380_dapm_widgets,
+ ARRAY_SIZE(uda1380_dapm_widgets));
+
+ if (err)
+ return err;
+
+ /* Set up rx1950 specific audio path audio_mapnects */
+ err = snd_soc_dapm_add_routes(dapm, audio_map,
+ ARRAY_SIZE(audio_map));
+
+ if (err)
+ return err;
+
+ snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
+ snd_soc_dapm_enable_pin(dapm, "Speaker");
+
+ snd_soc_dapm_sync(dapm);
+
+ snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
+ &hp_jack);
+
+ snd_soc_jack_add_pins(&hp_jack, ARRAY_SIZE(hp_jack_pins),
+ hp_jack_pins);
+
+ snd_soc_jack_add_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
+ hp_jack_gpios);
+
+ return 0;
+}
+
+static int __init rx1950_init(void)
+{
+ int ret;
+
+ if (!machine_is_rx1950())
+ return -ENODEV;
+
+ /* configure some gpios */
+ ret = gpio_request(S3C2410_GPA(1), "speaker-power");
+ if (ret)
+ goto err_gpio;
+
+ ret = gpio_direction_output(S3C2410_GPA(1), 0);
+ if (ret)
+ goto err_gpio_conf;
+
+ s3c24xx_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!s3c24xx_snd_device) {
+ ret = -ENOMEM;
+ goto err_plat_alloc;
+ }
+
+ platform_set_drvdata(s3c24xx_snd_device, &rx1950_asoc);
+ ret = platform_device_add(s3c24xx_snd_device);
+
+ if (ret) {
+ platform_device_put(s3c24xx_snd_device);
+ goto err_plat_add;
+ }
+
+ return 0;
+
+err_plat_add:
+err_plat_alloc:
+err_gpio_conf:
+ gpio_free(S3C2410_GPA(1));
+
+err_gpio:
+ return ret;
+}
+
+static void __exit rx1950_exit(void)
+{
+ platform_device_unregister(s3c24xx_snd_device);
+ snd_soc_jack_free_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
+ hp_jack_gpios);
+ gpio_free(S3C2410_GPA(1));
+}
+
+module_init(rx1950_init);
+module_exit(rx1950_exit);
+
+/* Module information */
+MODULE_AUTHOR("Vasily Khoruzhick");
+MODULE_DESCRIPTION("ALSA SoC RX1950");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* sound/soc/samsung/s3c-i2c-v2.c
+ *
+ * ALSA Soc Audio Layer - I2S core for newer Samsung SoCs.
+ *
+ * Copyright (c) 2006 Wolfson Microelectronics PLC.
+ * Graeme Gregory graeme.gregory@wolfsonmicro.com
+ * linux@wolfsonmicro.com
+ *
+ * Copyright (c) 2008, 2007, 2004-2005 Simtec Electronics
+ * http://armlinux.simtec.co.uk/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <mach/dma.h>
+
+#include "regs-i2s-v2.h"
+#include "s3c-i2s-v2.h"
+#include "dma.h"
+
+#undef S3C_IIS_V2_SUPPORTED
+
+#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413) \
+ || defined(CONFIG_CPU_S5PV210)
+#define S3C_IIS_V2_SUPPORTED
+#endif
+
+#ifdef CONFIG_PLAT_S3C64XX
+#define S3C_IIS_V2_SUPPORTED
+#endif
+
+#ifndef S3C_IIS_V2_SUPPORTED
+#error Unsupported CPU model
+#endif
+
+#define S3C2412_I2S_DEBUG_CON 0
+
+static inline struct s3c_i2sv2_info *to_info(struct snd_soc_dai *cpu_dai)
+{
+ return snd_soc_dai_get_drvdata(cpu_dai);
+}
+
+#define bit_set(v, b) (((v) & (b)) ? 1 : 0)
+
+#if S3C2412_I2S_DEBUG_CON
+static void dbg_showcon(const char *fn, u32 con)
+{
+ printk(KERN_DEBUG "%s: LRI=%d, TXFEMPT=%d, RXFEMPT=%d, TXFFULL=%d, RXFFULL=%d\n", fn,
+ bit_set(con, S3C2412_IISCON_LRINDEX),
+ bit_set(con, S3C2412_IISCON_TXFIFO_EMPTY),
+ bit_set(con, S3C2412_IISCON_RXFIFO_EMPTY),
+ bit_set(con, S3C2412_IISCON_TXFIFO_FULL),
+ bit_set(con, S3C2412_IISCON_RXFIFO_FULL));
+
+ printk(KERN_DEBUG "%s: PAUSE: TXDMA=%d, RXDMA=%d, TXCH=%d, RXCH=%d\n",
+ fn,
+ bit_set(con, S3C2412_IISCON_TXDMA_PAUSE),
+ bit_set(con, S3C2412_IISCON_RXDMA_PAUSE),
+ bit_set(con, S3C2412_IISCON_TXCH_PAUSE),
+ bit_set(con, S3C2412_IISCON_RXCH_PAUSE));
+ printk(KERN_DEBUG "%s: ACTIVE: TXDMA=%d, RXDMA=%d, IIS=%d\n", fn,
+ bit_set(con, S3C2412_IISCON_TXDMA_ACTIVE),
+ bit_set(con, S3C2412_IISCON_RXDMA_ACTIVE),
+ bit_set(con, S3C2412_IISCON_IIS_ACTIVE));
+}
+#else
+static inline void dbg_showcon(const char *fn, u32 con)
+{
+}
+#endif
+
+
+/* Turn on or off the transmission path. */
+static void s3c2412_snd_txctrl(struct s3c_i2sv2_info *i2s, int on)
+{
+ void __iomem *regs = i2s->regs;
+ u32 fic, con, mod;
+
+ pr_debug("%s(%d)\n", __func__, on);
+
+ fic = readl(regs + S3C2412_IISFIC);
+ con = readl(regs + S3C2412_IISCON);
+ mod = readl(regs + S3C2412_IISMOD);
+
+ pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic);
+
+ if (on) {
+ con |= S3C2412_IISCON_TXDMA_ACTIVE | S3C2412_IISCON_IIS_ACTIVE;
+ con &= ~S3C2412_IISCON_TXDMA_PAUSE;
+ con &= ~S3C2412_IISCON_TXCH_PAUSE;
+
+ switch (mod & S3C2412_IISMOD_MODE_MASK) {
+ case S3C2412_IISMOD_MODE_TXONLY:
+ case S3C2412_IISMOD_MODE_TXRX:
+ /* do nothing, we are in the right mode */
+ break;
+
+ case S3C2412_IISMOD_MODE_RXONLY:
+ mod &= ~S3C2412_IISMOD_MODE_MASK;
+ mod |= S3C2412_IISMOD_MODE_TXRX;
+ break;
+
+ default:
+ dev_err(i2s->dev, "TXEN: Invalid MODE %x in IISMOD\n",
+ mod & S3C2412_IISMOD_MODE_MASK);
+ break;
+ }
+
+ writel(con, regs + S3C2412_IISCON);
+ writel(mod, regs + S3C2412_IISMOD);
+ } else {
+ /* Note, we do not have any indication that the FIFO problems
+ * tha the S3C2410/2440 had apply here, so we should be able
+ * to disable the DMA and TX without resetting the FIFOS.
+ */
+
+ con |= S3C2412_IISCON_TXDMA_PAUSE;
+ con |= S3C2412_IISCON_TXCH_PAUSE;
+ con &= ~S3C2412_IISCON_TXDMA_ACTIVE;
+
+ switch (mod & S3C2412_IISMOD_MODE_MASK) {
+ case S3C2412_IISMOD_MODE_TXRX:
+ mod &= ~S3C2412_IISMOD_MODE_MASK;
+ mod |= S3C2412_IISMOD_MODE_RXONLY;
+ break;
+
+ case S3C2412_IISMOD_MODE_TXONLY:
+ mod &= ~S3C2412_IISMOD_MODE_MASK;
+ con &= ~S3C2412_IISCON_IIS_ACTIVE;
+ break;
+
+ default:
+ dev_err(i2s->dev, "TXDIS: Invalid MODE %x in IISMOD\n",
+ mod & S3C2412_IISMOD_MODE_MASK);
+ break;
+ }
+
+ writel(mod, regs + S3C2412_IISMOD);
+ writel(con, regs + S3C2412_IISCON);
+ }
+
+ fic = readl(regs + S3C2412_IISFIC);
+ dbg_showcon(__func__, con);
+ pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic);
+}
+
+static void s3c2412_snd_rxctrl(struct s3c_i2sv2_info *i2s, int on)
+{
+ void __iomem *regs = i2s->regs;
+ u32 fic, con, mod;
+
+ pr_debug("%s(%d)\n", __func__, on);
+
+ fic = readl(regs + S3C2412_IISFIC);
+ con = readl(regs + S3C2412_IISCON);
+ mod = readl(regs + S3C2412_IISMOD);
+
+ pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic);
+
+ if (on) {
+ con |= S3C2412_IISCON_RXDMA_ACTIVE | S3C2412_IISCON_IIS_ACTIVE;
+ con &= ~S3C2412_IISCON_RXDMA_PAUSE;
+ con &= ~S3C2412_IISCON_RXCH_PAUSE;
+
+ switch (mod & S3C2412_IISMOD_MODE_MASK) {
+ case S3C2412_IISMOD_MODE_TXRX:
+ case S3C2412_IISMOD_MODE_RXONLY:
+ /* do nothing, we are in the right mode */
+ break;
+
+ case S3C2412_IISMOD_MODE_TXONLY:
+ mod &= ~S3C2412_IISMOD_MODE_MASK;
+ mod |= S3C2412_IISMOD_MODE_TXRX;
+ break;
+
+ default:
+ dev_err(i2s->dev, "RXEN: Invalid MODE %x in IISMOD\n",
+ mod & S3C2412_IISMOD_MODE_MASK);
+ }
+
+ writel(mod, regs + S3C2412_IISMOD);
+ writel(con, regs + S3C2412_IISCON);
+ } else {
+ /* See txctrl notes on FIFOs. */
+
+ con &= ~S3C2412_IISCON_RXDMA_ACTIVE;
+ con |= S3C2412_IISCON_RXDMA_PAUSE;
+ con |= S3C2412_IISCON_RXCH_PAUSE;
+
+ switch (mod & S3C2412_IISMOD_MODE_MASK) {
+ case S3C2412_IISMOD_MODE_RXONLY:
+ con &= ~S3C2412_IISCON_IIS_ACTIVE;
+ mod &= ~S3C2412_IISMOD_MODE_MASK;
+ break;
+
+ case S3C2412_IISMOD_MODE_TXRX:
+ mod &= ~S3C2412_IISMOD_MODE_MASK;
+ mod |= S3C2412_IISMOD_MODE_TXONLY;
+ break;
+
+ default:
+ dev_err(i2s->dev, "RXDIS: Invalid MODE %x in IISMOD\n",
+ mod & S3C2412_IISMOD_MODE_MASK);
+ }
+
+ writel(con, regs + S3C2412_IISCON);
+ writel(mod, regs + S3C2412_IISMOD);
+ }
+
+ fic = readl(regs + S3C2412_IISFIC);
+ pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic);
+}
+
+#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t)
+
+/*
+ * Wait for the LR signal to allow synchronisation to the L/R clock
+ * from the codec. May only be needed for slave mode.
+ */
+static int s3c2412_snd_lrsync(struct s3c_i2sv2_info *i2s)
+{
+ u32 iiscon;
+ unsigned long loops = msecs_to_loops(5);
+
+ pr_debug("Entered %s\n", __func__);
+
+ while (--loops) {
+ iiscon = readl(i2s->regs + S3C2412_IISCON);
+ if (iiscon & S3C2412_IISCON_LRINDEX)
+ break;
+
+ cpu_relax();
+ }
+
+ if (!loops) {
+ printk(KERN_ERR "%s: timeout\n", __func__);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+/*
+ * Set S3C2412 I2S DAI format
+ */
+static int s3c2412_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
+ unsigned int fmt)
+{
+ struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
+ u32 iismod;
+
+ pr_debug("Entered %s\n", __func__);
+
+ iismod = readl(i2s->regs + S3C2412_IISMOD);
+ pr_debug("hw_params r: IISMOD: %x \n", iismod);
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ i2s->master = 0;
+ iismod |= S3C2412_IISMOD_SLAVE;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ i2s->master = 1;
+ iismod &= ~S3C2412_IISMOD_SLAVE;
+ break;
+ default:
+ pr_err("unknwon master/slave format\n");
+ return -EINVAL;
+ }
+
+ iismod &= ~S3C2412_IISMOD_SDF_MASK;
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_RIGHT_J:
+ iismod |= S3C2412_IISMOD_LR_RLOW;
+ iismod |= S3C2412_IISMOD_SDF_MSB;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ iismod |= S3C2412_IISMOD_LR_RLOW;
+ iismod |= S3C2412_IISMOD_SDF_LSB;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ iismod &= ~S3C2412_IISMOD_LR_RLOW;
+ iismod |= S3C2412_IISMOD_SDF_IIS;
+ break;
+ default:
+ pr_err("Unknown data format\n");
+ return -EINVAL;
+ }
+
+ writel(iismod, i2s->regs + S3C2412_IISMOD);
+ pr_debug("hw_params w: IISMOD: %x \n", iismod);
+ return 0;
+}
+
+static int s3c_i2sv2_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct s3c_i2sv2_info *i2s = to_info(dai);
+ struct s3c_dma_params *dma_data;
+ u32 iismod;
+
+ pr_debug("Entered %s\n", __func__);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dma_data = i2s->dma_playback;
+ else
+ dma_data = i2s->dma_capture;
+
+ snd_soc_dai_set_dma_data(dai, substream, dma_data);
+
+ /* Working copies of register */
+ iismod = readl(i2s->regs + S3C2412_IISMOD);
+ pr_debug("%s: r: IISMOD: %x\n", __func__, iismod);
+
+ iismod &= ~S3C64XX_IISMOD_BLC_MASK;
+ /* Sample size */
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S8:
+ iismod |= S3C64XX_IISMOD_BLC_8BIT;
+ break;
+ case SNDRV_PCM_FORMAT_S16_LE:
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ iismod |= S3C64XX_IISMOD_BLC_24BIT;
+ break;
+ }
+
+ writel(iismod, i2s->regs + S3C2412_IISMOD);
+ pr_debug("%s: w: IISMOD: %x\n", __func__, iismod);
+
+ return 0;
+}
+
+static int s3c_i2sv2_set_sysclk(struct snd_soc_dai *cpu_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
+ u32 iismod = readl(i2s->regs + S3C2412_IISMOD);
+
+ pr_debug("Entered %s\n", __func__);
+ pr_debug("%s r: IISMOD: %x\n", __func__, iismod);
+
+ switch (clk_id) {
+ case S3C_I2SV2_CLKSRC_PCLK:
+ iismod &= ~S3C2412_IISMOD_IMS_SYSMUX;
+ break;
+
+ case S3C_I2SV2_CLKSRC_AUDIOBUS:
+ iismod |= S3C2412_IISMOD_IMS_SYSMUX;
+ break;
+
+ case S3C_I2SV2_CLKSRC_CDCLK:
+ /* Error if controller doesn't have the CDCLKCON bit */
+ if (!(i2s->feature & S3C_FEATURE_CDCLKCON))
+ return -EINVAL;
+
+ switch (dir) {
+ case SND_SOC_CLOCK_IN:
+ iismod |= S3C64XX_IISMOD_CDCLKCON;
+ break;
+ case SND_SOC_CLOCK_OUT:
+ iismod &= ~S3C64XX_IISMOD_CDCLKCON;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ writel(iismod, i2s->regs + S3C2412_IISMOD);
+ pr_debug("%s w: IISMOD: %x\n", __func__, iismod);
+
+ return 0;
+}
+
+static int s3c2412_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct s3c_i2sv2_info *i2s = to_info(rtd->cpu_dai);
+ int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
+ unsigned long irqs;
+ int ret = 0;
+ struct s3c_dma_params *dma_data =
+ snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+
+ pr_debug("Entered %s\n", __func__);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ /* On start, ensure that the FIFOs are cleared and reset. */
+
+ writel(capture ? S3C2412_IISFIC_RXFLUSH : S3C2412_IISFIC_TXFLUSH,
+ i2s->regs + S3C2412_IISFIC);
+
+ /* clear again, just in case */
+ writel(0x0, i2s->regs + S3C2412_IISFIC);
+
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ if (!i2s->master) {
+ ret = s3c2412_snd_lrsync(i2s);
+ if (ret)
+ goto exit_err;
+ }
+
+ local_irq_save(irqs);
+
+ if (capture)
+ s3c2412_snd_rxctrl(i2s, 1);
+ else
+ s3c2412_snd_txctrl(i2s, 1);
+
+ local_irq_restore(irqs);
+
+ /*
+ * Load the next buffer to DMA to meet the reqirement
+ * of the auto reload mechanism of S3C24XX.
+ * This call won't bother S3C64XX.
+ */
+ s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
+
+ break;
+
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ local_irq_save(irqs);
+
+ if (capture)
+ s3c2412_snd_rxctrl(i2s, 0);
+ else
+ s3c2412_snd_txctrl(i2s, 0);
+
+ local_irq_restore(irqs);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+exit_err:
+ return ret;
+}
+
+/*
+ * Set S3C2412 Clock dividers
+ */
+static int s3c2412_i2s_set_clkdiv(struct snd_soc_dai *cpu_dai,
+ int div_id, int div)
+{
+ struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
+ u32 reg;
+
+ pr_debug("%s(%p, %d, %d)\n", __func__, cpu_dai, div_id, div);
+
+ switch (div_id) {
+ case S3C_I2SV2_DIV_BCLK:
+ switch (div) {
+ case 16:
+ div = S3C2412_IISMOD_BCLK_16FS;
+ break;
+
+ case 32:
+ div = S3C2412_IISMOD_BCLK_32FS;
+ break;
+
+ case 24:
+ div = S3C2412_IISMOD_BCLK_24FS;
+ break;
+
+ case 48:
+ div = S3C2412_IISMOD_BCLK_48FS;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ reg = readl(i2s->regs + S3C2412_IISMOD);
+ reg &= ~S3C2412_IISMOD_BCLK_MASK;
+ writel(reg | div, i2s->regs + S3C2412_IISMOD);
+
+ pr_debug("%s: MOD=%08x\n", __func__, readl(i2s->regs + S3C2412_IISMOD));
+ break;
+
+ case S3C_I2SV2_DIV_RCLK:
+ switch (div) {
+ case 256:
+ div = S3C2412_IISMOD_RCLK_256FS;
+ break;
+
+ case 384:
+ div = S3C2412_IISMOD_RCLK_384FS;
+ break;
+
+ case 512:
+ div = S3C2412_IISMOD_RCLK_512FS;
+ break;
+
+ case 768:
+ div = S3C2412_IISMOD_RCLK_768FS;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ reg = readl(i2s->regs + S3C2412_IISMOD);
+ reg &= ~S3C2412_IISMOD_RCLK_MASK;
+ writel(reg | div, i2s->regs + S3C2412_IISMOD);
+ pr_debug("%s: MOD=%08x\n", __func__, readl(i2s->regs + S3C2412_IISMOD));
+ break;
+
+ case S3C_I2SV2_DIV_PRESCALER:
+ if (div >= 0) {
+ writel((div << 8) | S3C2412_IISPSR_PSREN,
+ i2s->regs + S3C2412_IISPSR);
+ } else {
+ writel(0x0, i2s->regs + S3C2412_IISPSR);
+ }
+ pr_debug("%s: PSR=%08x\n", __func__, readl(i2s->regs + S3C2412_IISPSR));
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static snd_pcm_sframes_t s3c2412_i2s_delay(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct s3c_i2sv2_info *i2s = to_info(dai);
+ u32 reg = readl(i2s->regs + S3C2412_IISFIC);
+ snd_pcm_sframes_t delay;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ delay = S3C2412_IISFIC_TXCOUNT(reg);
+ else
+ delay = S3C2412_IISFIC_RXCOUNT(reg);
+
+ return delay;
+}
+
+struct clk *s3c_i2sv2_get_clock(struct snd_soc_dai *cpu_dai)
+{
+ struct s3c_i2sv2_info *i2s = to_info(cpu_dai);
+ u32 iismod = readl(i2s->regs + S3C2412_IISMOD);
+
+ if (iismod & S3C2412_IISMOD_IMS_SYSMUX)
+ return i2s->iis_cclk;
+ else
+ return i2s->iis_pclk;
+}
+EXPORT_SYMBOL_GPL(s3c_i2sv2_get_clock);
+
+/* default table of all avaialable root fs divisors */
+static unsigned int iis_fs_tab[] = { 256, 512, 384, 768 };
+
+int s3c_i2sv2_iis_calc_rate(struct s3c_i2sv2_rate_calc *info,
+ unsigned int *fstab,
+ unsigned int rate, struct clk *clk)
+{
+ unsigned long clkrate = clk_get_rate(clk);
+ unsigned int div;
+ unsigned int fsclk;
+ unsigned int actual;
+ unsigned int fs;
+ unsigned int fsdiv;
+ signed int deviation = 0;
+ unsigned int best_fs = 0;
+ unsigned int best_div = 0;
+ unsigned int best_rate = 0;
+ unsigned int best_deviation = INT_MAX;
+
+ pr_debug("Input clock rate %ldHz\n", clkrate);
+
+ if (fstab == NULL)
+ fstab = iis_fs_tab;
+
+ for (fs = 0; fs < ARRAY_SIZE(iis_fs_tab); fs++) {
+ fsdiv = iis_fs_tab[fs];
+
+ fsclk = clkrate / fsdiv;
+ div = fsclk / rate;
+
+ if ((fsclk % rate) > (rate / 2))
+ div++;
+
+ if (div <= 1)
+ continue;
+
+ actual = clkrate / (fsdiv * div);
+ deviation = actual - rate;
+
+ printk(KERN_DEBUG "%ufs: div %u => result %u, deviation %d\n",
+ fsdiv, div, actual, deviation);
+
+ deviation = abs(deviation);
+
+ if (deviation < best_deviation) {
+ best_fs = fsdiv;
+ best_div = div;
+ best_rate = actual;
+ best_deviation = deviation;
+ }
+
+ if (deviation == 0)
+ break;
+ }
+
+ printk(KERN_DEBUG "best: fs=%u, div=%u, rate=%u\n",
+ best_fs, best_div, best_rate);
+
+ info->fs_div = best_fs;
+ info->clk_div = best_div;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(s3c_i2sv2_iis_calc_rate);
+
+int s3c_i2sv2_probe(struct snd_soc_dai *dai,
+ struct s3c_i2sv2_info *i2s,
+ unsigned long base)
+{
+ struct device *dev = dai->dev;
+ unsigned int iismod;
+
+ i2s->dev = dev;
+
+ /* record our i2s structure for later use in the callbacks */
+ snd_soc_dai_set_drvdata(dai, i2s);
+
+ i2s->regs = ioremap(base, 0x100);
+ if (i2s->regs == NULL) {
+ dev_err(dev, "cannot ioremap registers\n");
+ return -ENXIO;
+ }
+
+ i2s->iis_pclk = clk_get(dev, "iis");
+ if (IS_ERR(i2s->iis_pclk)) {
+ dev_err(dev, "failed to get iis_clock\n");
+ iounmap(i2s->regs);
+ return -ENOENT;
+ }
+
+ clk_enable(i2s->iis_pclk);
+
+ /* Mark ourselves as in TXRX mode so we can run through our cleanup
+ * process without warnings. */
+ iismod = readl(i2s->regs + S3C2412_IISMOD);
+ iismod |= S3C2412_IISMOD_MODE_TXRX;
+ writel(iismod, i2s->regs + S3C2412_IISMOD);
+ s3c2412_snd_txctrl(i2s, 0);
+ s3c2412_snd_rxctrl(i2s, 0);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(s3c_i2sv2_probe);
+
+#ifdef CONFIG_PM
+static int s3c2412_i2s_suspend(struct snd_soc_dai *dai)
+{
+ struct s3c_i2sv2_info *i2s = to_info(dai);
+ u32 iismod;
+
+ if (dai->active) {
+ i2s->suspend_iismod = readl(i2s->regs + S3C2412_IISMOD);
+ i2s->suspend_iiscon = readl(i2s->regs + S3C2412_IISCON);
+ i2s->suspend_iispsr = readl(i2s->regs + S3C2412_IISPSR);
+
+ /* some basic suspend checks */
+
+ iismod = readl(i2s->regs + S3C2412_IISMOD);
+
+ if (iismod & S3C2412_IISCON_RXDMA_ACTIVE)
+ pr_warning("%s: RXDMA active?\n", __func__);
+
+ if (iismod & S3C2412_IISCON_TXDMA_ACTIVE)
+ pr_warning("%s: TXDMA active?\n", __func__);
+
+ if (iismod & S3C2412_IISCON_IIS_ACTIVE)
+ pr_warning("%s: IIS active\n", __func__);
+ }
+
+ return 0;
+}
+
+static int s3c2412_i2s_resume(struct snd_soc_dai *dai)
+{
+ struct s3c_i2sv2_info *i2s = to_info(dai);
+
+ pr_info("dai_active %d, IISMOD %08x, IISCON %08x\n",
+ dai->active, i2s->suspend_iismod, i2s->suspend_iiscon);
+
+ if (dai->active) {
+ writel(i2s->suspend_iiscon, i2s->regs + S3C2412_IISCON);
+ writel(i2s->suspend_iismod, i2s->regs + S3C2412_IISMOD);
+ writel(i2s->suspend_iispsr, i2s->regs + S3C2412_IISPSR);
+
+ writel(S3C2412_IISFIC_RXFLUSH | S3C2412_IISFIC_TXFLUSH,
+ i2s->regs + S3C2412_IISFIC);
+
+ ndelay(250);
+ writel(0x0, i2s->regs + S3C2412_IISFIC);
+ }
+
+ return 0;
+}
+#else
+#define s3c2412_i2s_suspend NULL
+#define s3c2412_i2s_resume NULL
+#endif
+
+int s3c_i2sv2_register_dai(struct device *dev, int id,
+ struct snd_soc_dai_driver *drv)
+{
+ struct snd_soc_dai_ops *ops = drv->ops;
+
+ ops->trigger = s3c2412_i2s_trigger;
+ if (!ops->hw_params)
+ ops->hw_params = s3c_i2sv2_hw_params;
+ ops->set_fmt = s3c2412_i2s_set_fmt;
+ ops->set_clkdiv = s3c2412_i2s_set_clkdiv;
+ ops->set_sysclk = s3c_i2sv2_set_sysclk;
+
+ /* Allow overriding by (for example) IISv4 */
+ if (!ops->delay)
+ ops->delay = s3c2412_i2s_delay;
+
+ drv->suspend = s3c2412_i2s_suspend;
+ drv->resume = s3c2412_i2s_resume;
+
+ return snd_soc_register_dai(dev, drv);
+}
+EXPORT_SYMBOL_GPL(s3c_i2sv2_register_dai);
+
+MODULE_LICENSE("GPL");
--- /dev/null
+/* sound/soc/samsung/s3c-i2s-v2.h
+ *
+ * ALSA Soc Audio Layer - S3C_I2SV2 I2S driver
+ *
+ * Copyright (c) 2007 Simtec Electronics
+ * http://armlinux.simtec.co.uk/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+*/
+
+/* This code is the core support for the I2S block found in a number of
+ * Samsung SoC devices which is unofficially named I2S-V2. Currently the
+ * S3C2412 and the S3C64XX series use this block to provide 1 or 2 I2S
+ * channels via configurable GPIO.
+ */
+
+#ifndef __SND_SOC_S3C24XX_S3C_I2SV2_I2S_H
+#define __SND_SOC_S3C24XX_S3C_I2SV2_I2S_H __FILE__
+
+#define S3C_I2SV2_DIV_BCLK (1)
+#define S3C_I2SV2_DIV_RCLK (2)
+#define S3C_I2SV2_DIV_PRESCALER (3)
+
+#define S3C_I2SV2_CLKSRC_PCLK 0
+#define S3C_I2SV2_CLKSRC_AUDIOBUS 1
+#define S3C_I2SV2_CLKSRC_CDCLK 2
+
+/* Set this flag for I2S controllers that have the bit IISMOD[12]
+ * bridge/break RCLK signal and external Xi2sCDCLK pin.
+ */
+#define S3C_FEATURE_CDCLKCON (1 << 0)
+
+/**
+ * struct s3c_i2sv2_info - S3C I2S-V2 information
+ * @dev: The parent device passed to use from the probe.
+ * @regs: The pointer to the device registe block.
+ * @feature: Set of bit-flags indicating features of the controller.
+ * @master: True if the I2S core is the I2S bit clock master.
+ * @dma_playback: DMA information for playback channel.
+ * @dma_capture: DMA information for capture channel.
+ * @suspend_iismod: PM save for the IISMOD register.
+ * @suspend_iiscon: PM save for the IISCON register.
+ * @suspend_iispsr: PM save for the IISPSR register.
+ *
+ * This is the private codec state for the hardware associated with an
+ * I2S channel such as the register mappings and clock sources.
+ */
+struct s3c_i2sv2_info {
+ struct device *dev;
+ void __iomem *regs;
+
+ u32 feature;
+
+ struct clk *iis_pclk;
+ struct clk *iis_cclk;
+
+ unsigned char master;
+
+ struct s3c_dma_params *dma_playback;
+ struct s3c_dma_params *dma_capture;
+
+ u32 suspend_iismod;
+ u32 suspend_iiscon;
+ u32 suspend_iispsr;
+
+ unsigned long base;
+};
+
+extern struct clk *s3c_i2sv2_get_clock(struct snd_soc_dai *cpu_dai);
+
+struct s3c_i2sv2_rate_calc {
+ unsigned int clk_div; /* for prescaler */
+ unsigned int fs_div; /* for root frame clock */
+};
+
+extern int s3c_i2sv2_iis_calc_rate(struct s3c_i2sv2_rate_calc *info,
+ unsigned int *fstab,
+ unsigned int rate, struct clk *clk);
+
+/**
+ * s3c_i2sv2_probe - probe for i2s device helper
+ * @dai: The ASoC DAI structure supplied to the original probe.
+ * @i2s: Our local i2s structure to fill in.
+ * @base: The base address for the registers.
+ */
+extern int s3c_i2sv2_probe(struct snd_soc_dai *dai,
+ struct s3c_i2sv2_info *i2s,
+ unsigned long base);
+
+/**
+ * s3c_i2sv2_register_dai - register dai with soc core
+ * @dev: DAI device
+ * @id: DAI ID
+ * @drv: The driver structure to register
+ *
+ * Fill in any missing fields and then register the given dai with the
+ * soc core.
+ */
+extern int s3c_i2sv2_register_dai(struct device *dev, int id,
+ struct snd_soc_dai_driver *drv);
+
+#endif /* __SND_SOC_S3C24XX_S3C_I2SV2_I2S_H */
--- /dev/null
+/* sound/soc/samsung/s3c2412-i2s.c
+ *
+ * ALSA Soc Audio Layer - S3C2412 I2S driver
+ *
+ * Copyright (c) 2006 Wolfson Microelectronics PLC.
+ * Graeme Gregory graeme.gregory@wolfsonmicro.com
+ * linux@wolfsonmicro.com
+ *
+ * Copyright (c) 2007, 2004-2005 Simtec Electronics
+ * http://armlinux.simtec.co.uk/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+#include <mach/hardware.h>
+
+#include <mach/regs-gpio.h>
+#include <mach/dma.h>
+
+#include "dma.h"
+#include "regs-i2s-v2.h"
+#include "s3c2412-i2s.h"
+
+#define S3C2412_I2S_DEBUG 0
+
+static struct s3c2410_dma_client s3c2412_dma_client_out = {
+ .name = "I2S PCM Stereo out"
+};
+
+static struct s3c2410_dma_client s3c2412_dma_client_in = {
+ .name = "I2S PCM Stereo in"
+};
+
+static struct s3c_dma_params s3c2412_i2s_pcm_stereo_out = {
+ .client = &s3c2412_dma_client_out,
+ .channel = DMACH_I2S_OUT,
+ .dma_addr = S3C2410_PA_IIS + S3C2412_IISTXD,
+ .dma_size = 4,
+};
+
+static struct s3c_dma_params s3c2412_i2s_pcm_stereo_in = {
+ .client = &s3c2412_dma_client_in,
+ .channel = DMACH_I2S_IN,
+ .dma_addr = S3C2410_PA_IIS + S3C2412_IISRXD,
+ .dma_size = 4,
+};
+
+static struct s3c_i2sv2_info s3c2412_i2s;
+
+static int s3c2412_i2s_probe(struct snd_soc_dai *dai)
+{
+ int ret;
+
+ pr_debug("Entered %s\n", __func__);
+
+ ret = s3c_i2sv2_probe(dai, &s3c2412_i2s, S3C2410_PA_IIS);
+ if (ret)
+ return ret;
+
+ s3c2412_i2s.dma_capture = &s3c2412_i2s_pcm_stereo_in;
+ s3c2412_i2s.dma_playback = &s3c2412_i2s_pcm_stereo_out;
+
+ s3c2412_i2s.iis_cclk = clk_get(dai->dev, "i2sclk");
+ if (s3c2412_i2s.iis_cclk == NULL) {
+ pr_err("failed to get i2sclk clock\n");
+ iounmap(s3c2412_i2s.regs);
+ return -ENODEV;
+ }
+
+ /* Set MPLL as the source for IIS CLK */
+
+ clk_set_parent(s3c2412_i2s.iis_cclk, clk_get(NULL, "mpll"));
+ clk_enable(s3c2412_i2s.iis_cclk);
+
+ s3c2412_i2s.iis_cclk = s3c2412_i2s.iis_pclk;
+
+ /* Configure the I2S pins in correct mode */
+ s3c2410_gpio_cfgpin(S3C2410_GPE0, S3C2410_GPE0_I2SLRCK);
+ s3c2410_gpio_cfgpin(S3C2410_GPE1, S3C2410_GPE1_I2SSCLK);
+ s3c2410_gpio_cfgpin(S3C2410_GPE2, S3C2410_GPE2_CDCLK);
+ s3c2410_gpio_cfgpin(S3C2410_GPE3, S3C2410_GPE3_I2SSDI);
+ s3c2410_gpio_cfgpin(S3C2410_GPE4, S3C2410_GPE4_I2SSDO);
+
+ return 0;
+}
+
+static int s3c2412_i2s_remove(struct snd_soc_dai *dai)
+{
+ clk_disable(s3c2412_i2s.iis_cclk);
+ clk_put(s3c2412_i2s.iis_cclk);
+ iounmap(s3c2412_i2s.regs);
+
+ return 0;
+}
+
+static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *cpu_dai)
+{
+ struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(cpu_dai);
+ struct s3c_dma_params *dma_data;
+ u32 iismod;
+
+ pr_debug("Entered %s\n", __func__);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dma_data = i2s->dma_playback;
+ else
+ dma_data = i2s->dma_capture;
+
+ snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
+
+ iismod = readl(i2s->regs + S3C2412_IISMOD);
+ pr_debug("%s: r: IISMOD: %x\n", __func__, iismod);
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S8:
+ iismod |= S3C2412_IISMOD_8BIT;
+ break;
+ case SNDRV_PCM_FORMAT_S16_LE:
+ iismod &= ~S3C2412_IISMOD_8BIT;
+ break;
+ }
+
+ writel(iismod, i2s->regs + S3C2412_IISMOD);
+ pr_debug("%s: w: IISMOD: %x\n", __func__, iismod);
+
+ return 0;
+}
+
+#define S3C2412_I2S_RATES \
+ (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \
+ SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
+ SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
+
+static struct snd_soc_dai_ops s3c2412_i2s_dai_ops = {
+ .hw_params = s3c2412_i2s_hw_params,
+};
+
+static struct snd_soc_dai_driver s3c2412_i2s_dai = {
+ .probe = s3c2412_i2s_probe,
+ .remove = s3c2412_i2s_remove,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C2412_I2S_RATES,
+ .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C2412_I2S_RATES,
+ .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .ops = &s3c2412_i2s_dai_ops,
+};
+
+static __devinit int s3c2412_iis_dev_probe(struct platform_device *pdev)
+{
+ return snd_soc_register_dai(&pdev->dev, &s3c2412_i2s_dai);
+}
+
+static __devexit int s3c2412_iis_dev_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_dai(&pdev->dev);
+ return 0;
+}
+
+static struct platform_driver s3c2412_iis_driver = {
+ .probe = s3c2412_iis_dev_probe,
+ .remove = s3c2412_iis_dev_remove,
+ .driver = {
+ .name = "s3c2412-iis",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init s3c2412_i2s_init(void)
+{
+ return platform_driver_register(&s3c2412_iis_driver);
+}
+module_init(s3c2412_i2s_init);
+
+static void __exit s3c2412_i2s_exit(void)
+{
+ platform_driver_unregister(&s3c2412_iis_driver);
+}
+module_exit(s3c2412_i2s_exit);
+
+/* Module information */
+MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
+MODULE_DESCRIPTION("S3C2412 I2S SoC Interface");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:s3c2412-iis");
--- /dev/null
+/* sound/soc/samsung/s3c2412-i2s.c
+ *
+ * ALSA Soc Audio Layer - S3C2412 I2S driver
+ *
+ * Copyright (c) 2007 Simtec Electronics
+ * http://armlinux.simtec.co.uk/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+*/
+
+#ifndef __SND_SOC_S3C24XX_S3C2412_I2S_H
+#define __SND_SOC_S3C24XX_S3C2412_I2S_H __FILE__
+
+#include "s3c-i2s-v2.h"
+
+#define S3C2412_DIV_BCLK S3C_I2SV2_DIV_BCLK
+#define S3C2412_DIV_RCLK S3C_I2SV2_DIV_RCLK
+#define S3C2412_DIV_PRESCALER S3C_I2SV2_DIV_PRESCALER
+
+#define S3C2412_CLKSRC_PCLK S3C_I2SV2_CLKSRC_PCLK
+#define S3C2412_CLKSRC_I2SCLK S3C_I2SV2_CLKSRC_AUDIOBUS
+
+#endif /* __SND_SOC_S3C24XX_S3C2412_I2S_H */
--- /dev/null
+/*
+ * s3c24xx-i2s.c -- ALSA Soc Audio Layer
+ *
+ * (c) 2006 Wolfson Microelectronics PLC.
+ * Graeme Gregory graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
+ *
+ * Copyright 2004-2005 Simtec Electronics
+ * http://armlinux.simtec.co.uk/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/jiffies.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include <mach/hardware.h>
+#include <mach/regs-gpio.h>
+#include <mach/regs-clock.h>
+
+#include <asm/dma.h>
+#include <mach/dma.h>
+
+#include <plat/regs-iis.h>
+
+#include "dma.h"
+#include "s3c24xx-i2s.h"
+
+static struct s3c2410_dma_client s3c24xx_dma_client_out = {
+ .name = "I2S PCM Stereo out"
+};
+
+static struct s3c2410_dma_client s3c24xx_dma_client_in = {
+ .name = "I2S PCM Stereo in"
+};
+
+static struct s3c_dma_params s3c24xx_i2s_pcm_stereo_out = {
+ .client = &s3c24xx_dma_client_out,
+ .channel = DMACH_I2S_OUT,
+ .dma_addr = S3C2410_PA_IIS + S3C2410_IISFIFO,
+ .dma_size = 2,
+};
+
+static struct s3c_dma_params s3c24xx_i2s_pcm_stereo_in = {
+ .client = &s3c24xx_dma_client_in,
+ .channel = DMACH_I2S_IN,
+ .dma_addr = S3C2410_PA_IIS + S3C2410_IISFIFO,
+ .dma_size = 2,
+};
+
+struct s3c24xx_i2s_info {
+ void __iomem *regs;
+ struct clk *iis_clk;
+ u32 iiscon;
+ u32 iismod;
+ u32 iisfcon;
+ u32 iispsr;
+};
+static struct s3c24xx_i2s_info s3c24xx_i2s;
+
+static void s3c24xx_snd_txctrl(int on)
+{
+ u32 iisfcon;
+ u32 iiscon;
+ u32 iismod;
+
+ pr_debug("Entered %s\n", __func__);
+
+ iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
+ iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
+ iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
+
+ pr_debug("r: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
+
+ if (on) {
+ iisfcon |= S3C2410_IISFCON_TXDMA | S3C2410_IISFCON_TXENABLE;
+ iiscon |= S3C2410_IISCON_TXDMAEN | S3C2410_IISCON_IISEN;
+ iiscon &= ~S3C2410_IISCON_TXIDLE;
+ iismod |= S3C2410_IISMOD_TXMODE;
+
+ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
+ writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
+ writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
+ } else {
+ /* note, we have to disable the FIFOs otherwise bad things
+ * seem to happen when the DMA stops. According to the
+ * Samsung supplied kernel, this should allow the DMA
+ * engine and FIFOs to reset. If this isn't allowed, the
+ * DMA engine will simply freeze randomly.
+ */
+
+ iisfcon &= ~S3C2410_IISFCON_TXENABLE;
+ iisfcon &= ~S3C2410_IISFCON_TXDMA;
+ iiscon |= S3C2410_IISCON_TXIDLE;
+ iiscon &= ~S3C2410_IISCON_TXDMAEN;
+ iismod &= ~S3C2410_IISMOD_TXMODE;
+
+ writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
+ writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
+ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
+ }
+
+ pr_debug("w: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
+}
+
+static void s3c24xx_snd_rxctrl(int on)
+{
+ u32 iisfcon;
+ u32 iiscon;
+ u32 iismod;
+
+ pr_debug("Entered %s\n", __func__);
+
+ iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
+ iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
+ iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
+
+ pr_debug("r: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
+
+ if (on) {
+ iisfcon |= S3C2410_IISFCON_RXDMA | S3C2410_IISFCON_RXENABLE;
+ iiscon |= S3C2410_IISCON_RXDMAEN | S3C2410_IISCON_IISEN;
+ iiscon &= ~S3C2410_IISCON_RXIDLE;
+ iismod |= S3C2410_IISMOD_RXMODE;
+
+ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
+ writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
+ writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
+ } else {
+ /* note, we have to disable the FIFOs otherwise bad things
+ * seem to happen when the DMA stops. According to the
+ * Samsung supplied kernel, this should allow the DMA
+ * engine and FIFOs to reset. If this isn't allowed, the
+ * DMA engine will simply freeze randomly.
+ */
+
+ iisfcon &= ~S3C2410_IISFCON_RXENABLE;
+ iisfcon &= ~S3C2410_IISFCON_RXDMA;
+ iiscon |= S3C2410_IISCON_RXIDLE;
+ iiscon &= ~S3C2410_IISCON_RXDMAEN;
+ iismod &= ~S3C2410_IISMOD_RXMODE;
+
+ writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
+ writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
+ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
+ }
+
+ pr_debug("w: IISCON: %x IISMOD: %x IISFCON: %x\n", iiscon, iismod, iisfcon);
+}
+
+/*
+ * Wait for the LR signal to allow synchronisation to the L/R clock
+ * from the codec. May only be needed for slave mode.
+ */
+static int s3c24xx_snd_lrsync(void)
+{
+ u32 iiscon;
+ int timeout = 50; /* 5ms */
+
+ pr_debug("Entered %s\n", __func__);
+
+ while (1) {
+ iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
+ if (iiscon & S3C2410_IISCON_LRINDEX)
+ break;
+
+ if (!timeout--)
+ return -ETIMEDOUT;
+ udelay(100);
+ }
+
+ return 0;
+}
+
+/*
+ * Check whether CPU is the master or slave
+ */
+static inline int s3c24xx_snd_is_clkmaster(void)
+{
+ pr_debug("Entered %s\n", __func__);
+
+ return (readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & S3C2410_IISMOD_SLAVE) ? 0:1;
+}
+
+/*
+ * Set S3C24xx I2S DAI format
+ */
+static int s3c24xx_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
+ unsigned int fmt)
+{
+ u32 iismod;
+
+ pr_debug("Entered %s\n", __func__);
+
+ iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
+ pr_debug("hw_params r: IISMOD: %x \n", iismod);
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ iismod |= S3C2410_IISMOD_SLAVE;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ iismod &= ~S3C2410_IISMOD_SLAVE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_LEFT_J:
+ iismod |= S3C2410_IISMOD_MSB;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ iismod &= ~S3C2410_IISMOD_MSB;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
+ pr_debug("hw_params w: IISMOD: %x \n", iismod);
+ return 0;
+}
+
+static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct s3c_dma_params *dma_data;
+ u32 iismod;
+
+ pr_debug("Entered %s\n", __func__);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dma_data = &s3c24xx_i2s_pcm_stereo_out;
+ else
+ dma_data = &s3c24xx_i2s_pcm_stereo_in;
+
+ snd_soc_dai_set_dma_data(rtd->cpu_dai, substream, dma_data);
+
+ /* Working copies of register */
+ iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
+ pr_debug("hw_params r: IISMOD: %x\n", iismod);
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S8:
+ iismod &= ~S3C2410_IISMOD_16BIT;
+ dma_data->dma_size = 1;
+ break;
+ case SNDRV_PCM_FORMAT_S16_LE:
+ iismod |= S3C2410_IISMOD_16BIT;
+ dma_data->dma_size = 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
+ pr_debug("hw_params w: IISMOD: %x\n", iismod);
+ return 0;
+}
+
+static int s3c24xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ int ret = 0;
+ struct s3c_dma_params *dma_data =
+ snd_soc_dai_get_dma_data(dai, substream);
+
+ pr_debug("Entered %s\n", __func__);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ if (!s3c24xx_snd_is_clkmaster()) {
+ ret = s3c24xx_snd_lrsync();
+ if (ret)
+ goto exit_err;
+ }
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ s3c24xx_snd_rxctrl(1);
+ else
+ s3c24xx_snd_txctrl(1);
+
+ s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ s3c24xx_snd_rxctrl(0);
+ else
+ s3c24xx_snd_txctrl(0);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+exit_err:
+ return ret;
+}
+
+/*
+ * Set S3C24xx Clock source
+ */
+static int s3c24xx_i2s_set_sysclk(struct snd_soc_dai *cpu_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ u32 iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
+
+ pr_debug("Entered %s\n", __func__);
+
+ iismod &= ~S3C2440_IISMOD_MPLL;
+
+ switch (clk_id) {
+ case S3C24XX_CLKSRC_PCLK:
+ break;
+ case S3C24XX_CLKSRC_MPLL:
+ iismod |= S3C2440_IISMOD_MPLL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
+ return 0;
+}
+
+/*
+ * Set S3C24xx Clock dividers
+ */
+static int s3c24xx_i2s_set_clkdiv(struct snd_soc_dai *cpu_dai,
+ int div_id, int div)
+{
+ u32 reg;
+
+ pr_debug("Entered %s\n", __func__);
+
+ switch (div_id) {
+ case S3C24XX_DIV_BCLK:
+ reg = readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & ~S3C2410_IISMOD_FS_MASK;
+ writel(reg | div, s3c24xx_i2s.regs + S3C2410_IISMOD);
+ break;
+ case S3C24XX_DIV_MCLK:
+ reg = readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & ~(S3C2410_IISMOD_384FS);
+ writel(reg | div, s3c24xx_i2s.regs + S3C2410_IISMOD);
+ break;
+ case S3C24XX_DIV_PRESCALER:
+ writel(div, s3c24xx_i2s.regs + S3C2410_IISPSR);
+ reg = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
+ writel(reg | S3C2410_IISCON_PSCEN, s3c24xx_i2s.regs + S3C2410_IISCON);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * To avoid duplicating clock code, allow machine driver to
+ * get the clockrate from here.
+ */
+u32 s3c24xx_i2s_get_clockrate(void)
+{
+ return clk_get_rate(s3c24xx_i2s.iis_clk);
+}
+EXPORT_SYMBOL_GPL(s3c24xx_i2s_get_clockrate);
+
+static int s3c24xx_i2s_probe(struct snd_soc_dai *dai)
+{
+ pr_debug("Entered %s\n", __func__);
+
+ s3c24xx_i2s.regs = ioremap(S3C2410_PA_IIS, 0x100);
+ if (s3c24xx_i2s.regs == NULL)
+ return -ENXIO;
+
+ s3c24xx_i2s.iis_clk = clk_get(dai->dev, "iis");
+ if (s3c24xx_i2s.iis_clk == NULL) {
+ pr_err("failed to get iis_clock\n");
+ iounmap(s3c24xx_i2s.regs);
+ return -ENODEV;
+ }
+ clk_enable(s3c24xx_i2s.iis_clk);
+
+ /* Configure the I2S pins in correct mode */
+ s3c2410_gpio_cfgpin(S3C2410_GPE0, S3C2410_GPE0_I2SLRCK);
+ s3c2410_gpio_cfgpin(S3C2410_GPE1, S3C2410_GPE1_I2SSCLK);
+ s3c2410_gpio_cfgpin(S3C2410_GPE2, S3C2410_GPE2_CDCLK);
+ s3c2410_gpio_cfgpin(S3C2410_GPE3, S3C2410_GPE3_I2SSDI);
+ s3c2410_gpio_cfgpin(S3C2410_GPE4, S3C2410_GPE4_I2SSDO);
+
+ writel(S3C2410_IISCON_IISEN, s3c24xx_i2s.regs + S3C2410_IISCON);
+
+ s3c24xx_snd_txctrl(0);
+ s3c24xx_snd_rxctrl(0);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int s3c24xx_i2s_suspend(struct snd_soc_dai *cpu_dai)
+{
+ pr_debug("Entered %s\n", __func__);
+
+ s3c24xx_i2s.iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
+ s3c24xx_i2s.iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
+ s3c24xx_i2s.iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
+ s3c24xx_i2s.iispsr = readl(s3c24xx_i2s.regs + S3C2410_IISPSR);
+
+ clk_disable(s3c24xx_i2s.iis_clk);
+
+ return 0;
+}
+
+static int s3c24xx_i2s_resume(struct snd_soc_dai *cpu_dai)
+{
+ pr_debug("Entered %s\n", __func__);
+ clk_enable(s3c24xx_i2s.iis_clk);
+
+ writel(s3c24xx_i2s.iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
+ writel(s3c24xx_i2s.iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
+ writel(s3c24xx_i2s.iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
+ writel(s3c24xx_i2s.iispsr, s3c24xx_i2s.regs + S3C2410_IISPSR);
+
+ return 0;
+}
+#else
+#define s3c24xx_i2s_suspend NULL
+#define s3c24xx_i2s_resume NULL
+#endif
+
+
+#define S3C24XX_I2S_RATES \
+ (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \
+ SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
+ SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
+
+static struct snd_soc_dai_ops s3c24xx_i2s_dai_ops = {
+ .trigger = s3c24xx_i2s_trigger,
+ .hw_params = s3c24xx_i2s_hw_params,
+ .set_fmt = s3c24xx_i2s_set_fmt,
+ .set_clkdiv = s3c24xx_i2s_set_clkdiv,
+ .set_sysclk = s3c24xx_i2s_set_sysclk,
+};
+
+static struct snd_soc_dai_driver s3c24xx_i2s_dai = {
+ .probe = s3c24xx_i2s_probe,
+ .suspend = s3c24xx_i2s_suspend,
+ .resume = s3c24xx_i2s_resume,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C24XX_I2S_RATES,
+ .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,},
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C24XX_I2S_RATES,
+ .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,},
+ .ops = &s3c24xx_i2s_dai_ops,
+};
+
+static __devinit int s3c24xx_iis_dev_probe(struct platform_device *pdev)
+{
+ return snd_soc_register_dai(&pdev->dev, &s3c24xx_i2s_dai);
+}
+
+static __devexit int s3c24xx_iis_dev_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_dai(&pdev->dev);
+ return 0;
+}
+
+static struct platform_driver s3c24xx_iis_driver = {
+ .probe = s3c24xx_iis_dev_probe,
+ .remove = s3c24xx_iis_dev_remove,
+ .driver = {
+ .name = "s3c24xx-iis",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init s3c24xx_i2s_init(void)
+{
+ return platform_driver_register(&s3c24xx_iis_driver);
+}
+module_init(s3c24xx_i2s_init);
+
+static void __exit s3c24xx_i2s_exit(void)
+{
+ platform_driver_unregister(&s3c24xx_iis_driver);
+}
+module_exit(s3c24xx_i2s_exit);
+
+/* Module information */
+MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
+MODULE_DESCRIPTION("s3c24xx I2S SoC Interface");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:s3c24xx-iis");
--- /dev/null
+/*
+ * s3c24xx-i2s.c -- ALSA Soc Audio Layer
+ *
+ * Copyright 2005 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory
+ * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Revision history
+ * 10th Nov 2006 Initial version.
+ */
+
+#ifndef S3C24XXI2S_H_
+#define S3C24XXI2S_H_
+
+/* clock sources */
+#define S3C24XX_CLKSRC_PCLK 0
+#define S3C24XX_CLKSRC_MPLL 1
+
+/* Clock dividers */
+#define S3C24XX_DIV_MCLK 0
+#define S3C24XX_DIV_BCLK 1
+#define S3C24XX_DIV_PRESCALER 2
+
+/* prescaler */
+#define S3C24XX_PRESCALE(a,b) \
+ (((a - 1) << S3C2410_IISPSR_INTSHIFT) | ((b - 1) << S3C2410_IISPSR_EXTSHFIT))
+
+u32 s3c24xx_i2s_get_clockrate(void);
+
+#endif /*S3C24XXI2S_H_*/
--- /dev/null
+/* sound/soc/samsung/s3c24xx_simtec.c
+ *
+ * Copyright 2009 Simtec Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/clk.h>
+#include <linux/i2c.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <plat/audio-simtec.h>
+
+#include "dma.h"
+#include "s3c24xx-i2s.h"
+#include "s3c24xx_simtec.h"
+
+static struct s3c24xx_audio_simtec_pdata *pdata;
+static struct clk *xtal_clk;
+
+static int spk_gain;
+static int spk_unmute;
+
+/**
+ * speaker_gain_get - read the speaker gain setting.
+ * @kcontrol: The control for the speaker gain.
+ * @ucontrol: The value that needs to be updated.
+ *
+ * Read the value for the AMP gain control.
+ */
+static int speaker_gain_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = spk_gain;
+ return 0;
+}
+
+/**
+ * speaker_gain_set - set the value of the speaker amp gain
+ * @value: The value to write.
+ */
+static void speaker_gain_set(int value)
+{
+ gpio_set_value_cansleep(pdata->amp_gain[0], value & 1);
+ gpio_set_value_cansleep(pdata->amp_gain[1], value >> 1);
+}
+
+/**
+ * speaker_gain_put - set the speaker gain setting.
+ * @kcontrol: The control for the speaker gain.
+ * @ucontrol: The value that needs to be set.
+ *
+ * Set the value of the speaker gain from the specified
+ * @ucontrol setting.
+ *
+ * Note, if the speaker amp is muted, then we do not set a gain value
+ * as at-least one of the ICs that is fitted will try and power up even
+ * if the main control is set to off.
+ */
+static int speaker_gain_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ int value = ucontrol->value.integer.value[0];
+
+ spk_gain = value;
+
+ if (!spk_unmute)
+ speaker_gain_set(value);
+
+ return 0;
+}
+
+static const struct snd_kcontrol_new amp_gain_controls[] = {
+ SOC_SINGLE_EXT("Speaker Gain", 0, 0, 3, 0,
+ speaker_gain_get, speaker_gain_put),
+};
+
+/**
+ * spk_unmute_state - set the unmute state of the speaker
+ * @to: zero to unmute, non-zero to ununmute.
+ */
+static void spk_unmute_state(int to)
+{
+ pr_debug("%s: to=%d\n", __func__, to);
+
+ spk_unmute = to;
+ gpio_set_value(pdata->amp_gpio, to);
+
+ /* if we're umuting, also re-set the gain */
+ if (to && pdata->amp_gain[0] > 0)
+ speaker_gain_set(spk_gain);
+}
+
+/**
+ * speaker_unmute_get - read the speaker unmute setting.
+ * @kcontrol: The control for the speaker gain.
+ * @ucontrol: The value that needs to be updated.
+ *
+ * Read the value for the AMP gain control.
+ */
+static int speaker_unmute_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = spk_unmute;
+ return 0;
+}
+
+/**
+ * speaker_unmute_put - set the speaker unmute setting.
+ * @kcontrol: The control for the speaker gain.
+ * @ucontrol: The value that needs to be set.
+ *
+ * Set the value of the speaker gain from the specified
+ * @ucontrol setting.
+ */
+static int speaker_unmute_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ spk_unmute_state(ucontrol->value.integer.value[0]);
+ return 0;
+}
+
+/* This is added as a manual control as the speaker amps create clicks
+ * when their power state is changed, which are far more noticeable than
+ * anything produced by the CODEC itself.
+ */
+static const struct snd_kcontrol_new amp_unmute_controls[] = {
+ SOC_SINGLE_EXT("Speaker Switch", 0, 0, 1, 0,
+ speaker_unmute_get, speaker_unmute_put),
+};
+
+void simtec_audio_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+
+ if (pdata->amp_gpio > 0) {
+ pr_debug("%s: adding amp routes\n", __func__);
+
+ snd_soc_add_controls(codec, amp_unmute_controls,
+ ARRAY_SIZE(amp_unmute_controls));
+ }
+
+ if (pdata->amp_gain[0] > 0) {
+ pr_debug("%s: adding amp controls\n", __func__);
+ snd_soc_add_controls(codec, amp_gain_controls,
+ ARRAY_SIZE(amp_gain_controls));
+ }
+}
+EXPORT_SYMBOL_GPL(simtec_audio_init);
+
+#define CODEC_CLOCK 12000000
+
+/**
+ * simtec_hw_params - update hardware parameters
+ * @substream: The audio substream instance.
+ * @params: The parameters requested.
+ *
+ * Update the codec data routing and configuration settings
+ * from the supplied data.
+ */
+static int simtec_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ int ret;
+
+ /* Set the CODEC as the bus clock master, I2S */
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM);
+ if (ret) {
+ pr_err("%s: failed set cpu dai format\n", __func__);
+ return ret;
+ }
+
+ /* Set the CODEC as the bus clock master */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM);
+ if (ret) {
+ pr_err("%s: failed set codec dai format\n", __func__);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, 0,
+ CODEC_CLOCK, SND_SOC_CLOCK_IN);
+ if (ret) {
+ pr_err( "%s: failed setting codec sysclk\n", __func__);
+ return ret;
+ }
+
+ if (pdata->use_mpllin) {
+ ret = snd_soc_dai_set_sysclk(cpu_dai, S3C24XX_CLKSRC_MPLL,
+ 0, SND_SOC_CLOCK_OUT);
+
+ if (ret) {
+ pr_err("%s: failed to set MPLLin as clksrc\n",
+ __func__);
+ return ret;
+ }
+ }
+
+ if (pdata->output_cdclk) {
+ int cdclk_scale;
+
+ cdclk_scale = clk_get_rate(xtal_clk) / CODEC_CLOCK;
+ cdclk_scale--;
+
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
+ cdclk_scale);
+ }
+
+ return 0;
+}
+
+static int simtec_call_startup(struct s3c24xx_audio_simtec_pdata *pd)
+{
+ /* call any board supplied startup code, this currently only
+ * covers the bast/vr1000 which have a CPLD in the way of the
+ * LRCLK */
+ if (pd->startup)
+ pd->startup();
+
+ return 0;
+}
+
+static struct snd_soc_ops simtec_snd_ops = {
+ .hw_params = simtec_hw_params,
+};
+
+/**
+ * attach_gpio_amp - get and configure the necessary gpios
+ * @dev: The device we're probing.
+ * @pd: The platform data supplied by the board.
+ *
+ * If there is a GPIO based amplifier attached to the board, claim
+ * the necessary GPIO lines for it, and set default values.
+ */
+static int attach_gpio_amp(struct device *dev,
+ struct s3c24xx_audio_simtec_pdata *pd)
+{
+ int ret;
+
+ /* attach gpio amp gain (if any) */
+ if (pdata->amp_gain[0] > 0) {
+ ret = gpio_request(pd->amp_gain[0], "gpio-amp-gain0");
+ if (ret) {
+ dev_err(dev, "cannot get amp gpio gain0\n");
+ return ret;
+ }
+
+ ret = gpio_request(pd->amp_gain[1], "gpio-amp-gain1");
+ if (ret) {
+ dev_err(dev, "cannot get amp gpio gain1\n");
+ gpio_free(pdata->amp_gain[0]);
+ return ret;
+ }
+
+ gpio_direction_output(pd->amp_gain[0], 0);
+ gpio_direction_output(pd->amp_gain[1], 0);
+ }
+
+ /* note, currently we assume GPA0 isn't valid amp */
+ if (pdata->amp_gpio > 0) {
+ ret = gpio_request(pd->amp_gpio, "gpio-amp");
+ if (ret) {
+ dev_err(dev, "cannot get amp gpio %d (%d)\n",
+ pd->amp_gpio, ret);
+ goto err_amp;
+ }
+
+ /* set the amp off at startup */
+ spk_unmute_state(0);
+ }
+
+ return 0;
+
+err_amp:
+ if (pd->amp_gain[0] > 0) {
+ gpio_free(pd->amp_gain[0]);
+ gpio_free(pd->amp_gain[1]);
+ }
+
+ return ret;
+}
+
+static void detach_gpio_amp(struct s3c24xx_audio_simtec_pdata *pd)
+{
+ if (pd->amp_gain[0] > 0) {
+ gpio_free(pd->amp_gain[0]);
+ gpio_free(pd->amp_gain[1]);
+ }
+
+ if (pd->amp_gpio > 0)
+ gpio_free(pd->amp_gpio);
+}
+
+#ifdef CONFIG_PM
+int simtec_audio_resume(struct device *dev)
+{
+ simtec_call_startup(pdata);
+ return 0;
+}
+
+const struct dev_pm_ops simtec_audio_pmops = {
+ .resume = simtec_audio_resume,
+};
+EXPORT_SYMBOL_GPL(simtec_audio_pmops);
+#endif
+
+int __devinit simtec_audio_core_probe(struct platform_device *pdev,
+ struct snd_soc_card *card)
+{
+ struct platform_device *snd_dev;
+ int ret;
+
+ card->dai_link->ops = &simtec_snd_ops;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(&pdev->dev, "no platform data supplied\n");
+ return -EINVAL;
+ }
+
+ simtec_call_startup(pdata);
+
+ xtal_clk = clk_get(&pdev->dev, "xtal");
+ if (IS_ERR(xtal_clk)) {
+ dev_err(&pdev->dev, "could not get clkout0\n");
+ return -EINVAL;
+ }
+
+ dev_info(&pdev->dev, "xtal rate is %ld\n", clk_get_rate(xtal_clk));
+
+ ret = attach_gpio_amp(&pdev->dev, pdata);
+ if (ret)
+ goto err_clk;
+
+ snd_dev = platform_device_alloc("soc-audio", -1);
+ if (!snd_dev) {
+ dev_err(&pdev->dev, "failed to alloc soc-audio devicec\n");
+ ret = -ENOMEM;
+ goto err_gpio;
+ }
+
+ platform_set_drvdata(snd_dev, card);
+
+ ret = platform_device_add(snd_dev);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to add soc-audio dev\n");
+ goto err_pdev;
+ }
+
+ platform_set_drvdata(pdev, snd_dev);
+ return 0;
+
+err_pdev:
+ platform_device_put(snd_dev);
+
+err_gpio:
+ detach_gpio_amp(pdata);
+
+err_clk:
+ clk_put(xtal_clk);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(simtec_audio_core_probe);
+
+int __devexit simtec_audio_remove(struct platform_device *pdev)
+{
+ struct platform_device *snd_dev = platform_get_drvdata(pdev);
+
+ platform_device_unregister(snd_dev);
+
+ detach_gpio_amp(pdata);
+ clk_put(xtal_clk);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(simtec_audio_remove);
+
+MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
+MODULE_DESCRIPTION("ALSA SoC Simtec Audio common support");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* sound/soc/samsung/s3c24xx_simtec.h
+ *
+ * Copyright 2009 Simtec Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+extern void simtec_audio_init(struct snd_soc_pcm_runtime *rtd);
+
+extern int simtec_audio_core_probe(struct platform_device *pdev,
+ struct snd_soc_card *card);
+
+extern int simtec_audio_remove(struct platform_device *pdev);
+
+#ifdef CONFIG_PM
+extern const struct dev_pm_ops simtec_audio_pmops;
+#define simtec_audio_pm &simtec_audio_pmops
+#else
+#define simtec_audio_pm NULL
+#endif
--- /dev/null
+/* sound/soc/samsung/s3c24xx_simtec_hermes.c
+ *
+ * Copyright 2009 Simtec Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <plat/audio-simtec.h>
+
+#include "dma.h"
+#include "s3c24xx-i2s.h"
+#include "s3c24xx_simtec.h"
+
+#include "../codecs/tlv320aic3x.h"
+
+static const struct snd_soc_dapm_widget dapm_widgets[] = {
+ SND_SOC_DAPM_LINE("GSM Out", NULL),
+ SND_SOC_DAPM_LINE("GSM In", NULL),
+ SND_SOC_DAPM_LINE("Line In", NULL),
+ SND_SOC_DAPM_LINE("Line Out", NULL),
+ SND_SOC_DAPM_LINE("ZV", NULL),
+ SND_SOC_DAPM_MIC("Mic Jack", NULL),
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+};
+
+static const struct snd_soc_dapm_route base_map[] = {
+ /* Headphone connected to HP{L,R}OUT and HP{L,R}COM */
+
+ { "Headphone Jack", NULL, "HPLOUT" },
+ { "Headphone Jack", NULL, "HPLCOM" },
+ { "Headphone Jack", NULL, "HPROUT" },
+ { "Headphone Jack", NULL, "HPRCOM" },
+
+ /* ZV connected to Line1 */
+
+ { "LINE1L", NULL, "ZV" },
+ { "LINE1R", NULL, "ZV" },
+
+ /* Line In connected to Line2 */
+
+ { "LINE2L", NULL, "Line In" },
+ { "LINE2R", NULL, "Line In" },
+
+ /* Microphone connected to MIC3R and MIC_BIAS */
+
+ { "MIC3L", NULL, "Mic Jack" },
+
+ /* GSM connected to MONO_LOUT and MIC3L (in) */
+
+ { "GSM Out", NULL, "MONO_LOUT" },
+ { "MIC3L", NULL, "GSM In" },
+
+ /* Speaker is connected to LINEOUT{LN,LP,RN,RP}, however we are
+ * not using the DAPM to power it up and down as there it makes
+ * a click when powering up. */
+};
+
+/**
+ * simtec_hermes_init - initialise and add controls
+ * @codec; The codec instance to attach to.
+ *
+ * Attach our controls and configure the necessary codec
+ * mappings for our sound card instance.
+*/
+static int simtec_hermes_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ snd_soc_dapm_new_controls(dapm, dapm_widgets,
+ ARRAY_SIZE(dapm_widgets));
+
+ snd_soc_dapm_add_routes(dapm, base_map, ARRAY_SIZE(base_map));
+
+ snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
+ snd_soc_dapm_enable_pin(dapm, "Line In");
+ snd_soc_dapm_enable_pin(dapm, "Line Out");
+ snd_soc_dapm_enable_pin(dapm, "Mic Jack");
+
+ simtec_audio_init(rtd);
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+static struct snd_soc_dai_link simtec_dai_aic33 = {
+ .name = "tlv320aic33",
+ .stream_name = "TLV320AIC33",
+ .codec_name = "tlv320aic3x-codec.0-0x1a",
+ .cpu_dai_name = "s3c24xx-i2s",
+ .codec_dai_name = "tlv320aic3x-hifi",
+ .platform_name = "samsung-audio",
+ .init = simtec_hermes_init,
+};
+
+/* simtec audio machine driver */
+static struct snd_soc_card snd_soc_machine_simtec_aic33 = {
+ .name = "Simtec-Hermes",
+ .dai_link = &simtec_dai_aic33,
+ .num_links = 1,
+};
+
+static int __devinit simtec_audio_hermes_probe(struct platform_device *pd)
+{
+ dev_info(&pd->dev, "probing....\n");
+ return simtec_audio_core_probe(pd, &snd_soc_machine_simtec_aic33);
+}
+
+static struct platform_driver simtec_audio_hermes_platdrv = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "s3c24xx-simtec-hermes-snd",
+ .pm = simtec_audio_pm,
+ },
+ .probe = simtec_audio_hermes_probe,
+ .remove = __devexit_p(simtec_audio_remove),
+};
+
+MODULE_ALIAS("platform:s3c24xx-simtec-hermes-snd");
+
+static int __init simtec_hermes_modinit(void)
+{
+ return platform_driver_register(&simtec_audio_hermes_platdrv);
+}
+
+static void __exit simtec_hermes_modexit(void)
+{
+ platform_driver_unregister(&simtec_audio_hermes_platdrv);
+}
+
+module_init(simtec_hermes_modinit);
+module_exit(simtec_hermes_modexit);
+
+MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
+MODULE_DESCRIPTION("ALSA SoC Simtec Audio support");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* sound/soc/samsung/s3c24xx_simtec_tlv320aic23.c
+ *
+ * Copyright 2009 Simtec Electronics
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <plat/audio-simtec.h>
+
+#include "dma.h"
+#include "s3c24xx-i2s.h"
+#include "s3c24xx_simtec.h"
+
+#include "../codecs/tlv320aic23.h"
+
+/* supported machines:
+ *
+ * Machine Connections AMP
+ * ------- ----------- ---
+ * BAST MIC, HPOUT, LOUT, LIN TPA2001D1 (HPOUTL,R) (gain hardwired)
+ * VR1000 HPOUT, LIN None
+ * VR2000 LIN, LOUT, MIC, HP LM4871 (HPOUTL,R)
+ * DePicture LIN, LOUT, MIC, HP LM4871 (HPOUTL,R)
+ * Anubis LIN, LOUT, MIC, HP TPA2001D1 (HPOUTL,R)
+ */
+
+static const struct snd_soc_dapm_widget dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_LINE("Line In", NULL),
+ SND_SOC_DAPM_LINE("Line Out", NULL),
+ SND_SOC_DAPM_MIC("Mic Jack", NULL),
+};
+
+static const struct snd_soc_dapm_route base_map[] = {
+ { "Headphone Jack", NULL, "LHPOUT"},
+ { "Headphone Jack", NULL, "RHPOUT"},
+
+ { "Line Out", NULL, "LOUT" },
+ { "Line Out", NULL, "ROUT" },
+
+ { "LLINEIN", NULL, "Line In"},
+ { "RLINEIN", NULL, "Line In"},
+
+ { "MICIN", NULL, "Mic Jack"},
+};
+
+/**
+ * simtec_tlv320aic23_init - initialise and add controls
+ * @codec; The codec instance to attach to.
+ *
+ * Attach our controls and configure the necessary codec
+ * mappings for our sound card instance.
+*/
+static int simtec_tlv320aic23_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ snd_soc_dapm_new_controls(dapm, dapm_widgets,
+ ARRAY_SIZE(dapm_widgets));
+
+ snd_soc_dapm_add_routes(dapm, base_map, ARRAY_SIZE(base_map));
+
+ snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
+ snd_soc_dapm_enable_pin(dapm, "Line In");
+ snd_soc_dapm_enable_pin(dapm, "Line Out");
+ snd_soc_dapm_enable_pin(dapm, "Mic Jack");
+
+ simtec_audio_init(rtd);
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+static struct snd_soc_dai_link simtec_dai_aic23 = {
+ .name = "tlv320aic23",
+ .stream_name = "TLV320AIC23",
+ .codec_name = "tlv320aic3x-codec.0-0x1a",
+ .cpu_dai_name = "s3c24xx-i2s",
+ .codec_dai_name = "tlv320aic3x-hifi",
+ .platform_name = "samsung-audio",
+ .init = simtec_tlv320aic23_init,
+};
+
+/* simtec audio machine driver */
+static struct snd_soc_card snd_soc_machine_simtec_aic23 = {
+ .name = "Simtec",
+ .dai_link = &simtec_dai_aic23,
+ .num_links = 1,
+};
+
+static int __devinit simtec_audio_tlv320aic23_probe(struct platform_device *pd)
+{
+ return simtec_audio_core_probe(pd, &snd_soc_machine_simtec_aic23);
+}
+
+static struct platform_driver simtec_audio_tlv320aic23_platdrv = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "s3c24xx-simtec-tlv320aic23",
+ .pm = simtec_audio_pm,
+ },
+ .probe = simtec_audio_tlv320aic23_probe,
+ .remove = __devexit_p(simtec_audio_remove),
+};
+
+MODULE_ALIAS("platform:s3c24xx-simtec-tlv320aic23");
+
+static int __init simtec_tlv320aic23_modinit(void)
+{
+ return platform_driver_register(&simtec_audio_tlv320aic23_platdrv);
+}
+
+static void __exit simtec_tlv320aic23_modexit(void)
+{
+ platform_driver_unregister(&simtec_audio_tlv320aic23_platdrv);
+}
+
+module_init(simtec_tlv320aic23_modinit);
+module_exit(simtec_tlv320aic23_modexit);
+
+MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
+MODULE_DESCRIPTION("ALSA SoC Simtec Audio support");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Modifications by Christian Pellegrin <chripell@evolware.org>
+ *
+ * s3c24xx_uda134x.c -- S3C24XX_UDA134X ALSA SoC Audio board driver
+ *
+ * Copyright 2007 Dension Audio Systems Ltd.
+ * Author: Zoltan Devai
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+#include <linux/gpio.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/s3c24xx_uda134x.h>
+#include <sound/uda134x.h>
+
+#include <plat/regs-iis.h>
+
+#include "dma.h"
+#include "s3c24xx-i2s.h"
+#include "../codecs/uda134x.h"
+
+
+/* #define ENFORCE_RATES 1 */
+/*
+ Unfortunately the S3C24XX in master mode has a limited capacity of
+ generating the clock for the codec. If you define this only rates
+ that are really available will be enforced. But be careful, most
+ user level application just want the usual sampling frequencies (8,
+ 11.025, 22.050, 44.1 kHz) and anyway resampling is a costly
+ operation for embedded systems. So if you aren't very lucky or your
+ hardware engineer wasn't very forward-looking it's better to leave
+ this undefined. If you do so an approximate value for the requested
+ sampling rate in the range -/+ 5% will be chosen. If this in not
+ possible an error will be returned.
+*/
+
+static struct clk *xtal;
+static struct clk *pclk;
+/* this is need because we don't have a place where to keep the
+ * pointers to the clocks in each substream. We get the clocks only
+ * when we are actually using them so we don't block stuff like
+ * frequency change or oscillator power-off */
+static int clk_users;
+static DEFINE_MUTEX(clk_lock);
+
+static unsigned int rates[33 * 2];
+#ifdef ENFORCE_RATES
+static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
+ .count = ARRAY_SIZE(rates),
+ .list = rates,
+ .mask = 0,
+};
+#endif
+
+static struct platform_device *s3c24xx_uda134x_snd_device;
+
+static int s3c24xx_uda134x_startup(struct snd_pcm_substream *substream)
+{
+ int ret = 0;
+#ifdef ENFORCE_RATES
+ struct snd_pcm_runtime *runtime = substream->runtime;
+#endif
+
+ mutex_lock(&clk_lock);
+ pr_debug("%s %d\n", __func__, clk_users);
+ if (clk_users == 0) {
+ xtal = clk_get(&s3c24xx_uda134x_snd_device->dev, "xtal");
+ if (!xtal) {
+ printk(KERN_ERR "%s cannot get xtal\n", __func__);
+ ret = -EBUSY;
+ } else {
+ pclk = clk_get(&s3c24xx_uda134x_snd_device->dev,
+ "pclk");
+ if (!pclk) {
+ printk(KERN_ERR "%s cannot get pclk\n",
+ __func__);
+ clk_put(xtal);
+ ret = -EBUSY;
+ }
+ }
+ if (!ret) {
+ int i, j;
+
+ for (i = 0; i < 2; i++) {
+ int fs = i ? 256 : 384;
+
+ rates[i*33] = clk_get_rate(xtal) / fs;
+ for (j = 1; j < 33; j++)
+ rates[i*33 + j] = clk_get_rate(pclk) /
+ (j * fs);
+ }
+ }
+ }
+ clk_users += 1;
+ mutex_unlock(&clk_lock);
+ if (!ret) {
+#ifdef ENFORCE_RATES
+ ret = snd_pcm_hw_constraint_list(runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ &hw_constraints_rates);
+ if (ret < 0)
+ printk(KERN_ERR "%s cannot set constraints\n",
+ __func__);
+#endif
+ }
+ return ret;
+}
+
+static void s3c24xx_uda134x_shutdown(struct snd_pcm_substream *substream)
+{
+ mutex_lock(&clk_lock);
+ pr_debug("%s %d\n", __func__, clk_users);
+ clk_users -= 1;
+ if (clk_users == 0) {
+ clk_put(xtal);
+ xtal = NULL;
+ clk_put(pclk);
+ pclk = NULL;
+ }
+ mutex_unlock(&clk_lock);
+}
+
+static int s3c24xx_uda134x_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ unsigned int clk = 0;
+ int ret = 0;
+ int clk_source, fs_mode;
+ unsigned long rate = params_rate(params);
+ long err, cerr;
+ unsigned int div;
+ int i, bi;
+
+ err = 999999;
+ bi = 0;
+ for (i = 0; i < 2*33; i++) {
+ cerr = rates[i] - rate;
+ if (cerr < 0)
+ cerr = -cerr;
+ if (cerr < err) {
+ err = cerr;
+ bi = i;
+ }
+ }
+ if (bi / 33 == 1)
+ fs_mode = S3C2410_IISMOD_256FS;
+ else
+ fs_mode = S3C2410_IISMOD_384FS;
+ if (bi % 33 == 0) {
+ clk_source = S3C24XX_CLKSRC_MPLL;
+ div = 1;
+ } else {
+ clk_source = S3C24XX_CLKSRC_PCLK;
+ div = bi % 33;
+ }
+ pr_debug("%s desired rate %lu, %d\n", __func__, rate, bi);
+
+ clk = (fs_mode == S3C2410_IISMOD_384FS ? 384 : 256) * rate;
+ pr_debug("%s will use: %s %s %d sysclk %d err %ld\n", __func__,
+ fs_mode == S3C2410_IISMOD_384FS ? "384FS" : "256FS",
+ clk_source == S3C24XX_CLKSRC_MPLL ? "MPLLin" : "PCLK",
+ div, clk, err);
+
+ if ((err * 100 / rate) > 5) {
+ printk(KERN_ERR "S3C24XX_UDA134X: effective frequency "
+ "too different from desired (%ld%%)\n",
+ err * 100 / rate);
+ return -EINVAL;
+ }
+
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_sysclk(cpu_dai, clk_source , clk,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK, fs_mode);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_BCLK,
+ S3C2410_IISMOD_32FS);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
+ S3C24XX_PRESCALE(div, div));
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk,
+ SND_SOC_CLOCK_OUT);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static struct snd_soc_ops s3c24xx_uda134x_ops = {
+ .startup = s3c24xx_uda134x_startup,
+ .shutdown = s3c24xx_uda134x_shutdown,
+ .hw_params = s3c24xx_uda134x_hw_params,
+};
+
+static struct snd_soc_dai_link s3c24xx_uda134x_dai_link = {
+ .name = "UDA134X",
+ .stream_name = "UDA134X",
+ .codec_name = "uda134x-hifi",
+ .codec_dai_name = "uda134x-hifi",
+ .cpu_dai_name = "s3c24xx-i2s",
+ .ops = &s3c24xx_uda134x_ops,
+ .platform_name = "samsung-audio",
+};
+
+static struct snd_soc_card snd_soc_s3c24xx_uda134x = {
+ .name = "S3C24XX_UDA134X",
+ .dai_link = &s3c24xx_uda134x_dai_link,
+ .num_links = 1,
+};
+
+static struct s3c24xx_uda134x_platform_data *s3c24xx_uda134x_l3_pins;
+
+static void setdat(int v)
+{
+ gpio_set_value(s3c24xx_uda134x_l3_pins->l3_data, v > 0);
+}
+
+static void setclk(int v)
+{
+ gpio_set_value(s3c24xx_uda134x_l3_pins->l3_clk, v > 0);
+}
+
+static void setmode(int v)
+{
+ gpio_set_value(s3c24xx_uda134x_l3_pins->l3_mode, v > 0);
+}
+
+/* FIXME - This must be codec platform data but in which board file ?? */
+static struct uda134x_platform_data s3c24xx_uda134x = {
+ .l3 = {
+ .setdat = setdat,
+ .setclk = setclk,
+ .setmode = setmode,
+ .data_hold = 1,
+ .data_setup = 1,
+ .clock_high = 1,
+ .mode_hold = 1,
+ .mode = 1,
+ .mode_setup = 1,
+ },
+};
+
+static int s3c24xx_uda134x_setup_pin(int pin, char *fun)
+{
+ if (gpio_request(pin, "s3c24xx_uda134x") < 0) {
+ printk(KERN_ERR "S3C24XX_UDA134X SoC Audio: "
+ "l3 %s pin already in use", fun);
+ return -EBUSY;
+ }
+ gpio_direction_output(pin, 0);
+ return 0;
+}
+
+static int s3c24xx_uda134x_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ printk(KERN_INFO "S3C24XX_UDA134X SoC Audio driver\n");
+
+ s3c24xx_uda134x_l3_pins = pdev->dev.platform_data;
+ if (s3c24xx_uda134x_l3_pins == NULL) {
+ printk(KERN_ERR "S3C24XX_UDA134X SoC Audio: "
+ "unable to find platform data\n");
+ return -ENODEV;
+ }
+ s3c24xx_uda134x.power = s3c24xx_uda134x_l3_pins->power;
+ s3c24xx_uda134x.model = s3c24xx_uda134x_l3_pins->model;
+
+ if (s3c24xx_uda134x_setup_pin(s3c24xx_uda134x_l3_pins->l3_data,
+ "data") < 0)
+ return -EBUSY;
+ if (s3c24xx_uda134x_setup_pin(s3c24xx_uda134x_l3_pins->l3_clk,
+ "clk") < 0) {
+ gpio_free(s3c24xx_uda134x_l3_pins->l3_data);
+ return -EBUSY;
+ }
+ if (s3c24xx_uda134x_setup_pin(s3c24xx_uda134x_l3_pins->l3_mode,
+ "mode") < 0) {
+ gpio_free(s3c24xx_uda134x_l3_pins->l3_data);
+ gpio_free(s3c24xx_uda134x_l3_pins->l3_clk);
+ return -EBUSY;
+ }
+
+ s3c24xx_uda134x_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!s3c24xx_uda134x_snd_device) {
+ printk(KERN_ERR "S3C24XX_UDA134X SoC Audio: "
+ "Unable to register\n");
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(s3c24xx_uda134x_snd_device,
+ &snd_soc_s3c24xx_uda134x);
+ ret = platform_device_add(s3c24xx_uda134x_snd_device);
+ if (ret) {
+ printk(KERN_ERR "S3C24XX_UDA134X SoC Audio: Unable to add\n");
+ platform_device_put(s3c24xx_uda134x_snd_device);
+ }
+
+ return ret;
+}
+
+static int s3c24xx_uda134x_remove(struct platform_device *pdev)
+{
+ platform_device_unregister(s3c24xx_uda134x_snd_device);
+ gpio_free(s3c24xx_uda134x_l3_pins->l3_data);
+ gpio_free(s3c24xx_uda134x_l3_pins->l3_clk);
+ gpio_free(s3c24xx_uda134x_l3_pins->l3_mode);
+ return 0;
+}
+
+static struct platform_driver s3c24xx_uda134x_driver = {
+ .probe = s3c24xx_uda134x_probe,
+ .remove = s3c24xx_uda134x_remove,
+ .driver = {
+ .name = "s3c24xx_uda134x",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init s3c24xx_uda134x_init(void)
+{
+ return platform_driver_register(&s3c24xx_uda134x_driver);
+}
+
+static void __exit s3c24xx_uda134x_exit(void)
+{
+ platform_driver_unregister(&s3c24xx_uda134x_driver);
+}
+
+
+module_init(s3c24xx_uda134x_init);
+module_exit(s3c24xx_uda134x_exit);
+
+MODULE_AUTHOR("Zoltan Devai, Christian Pellegrin <chripell@evolware.org>");
+MODULE_DESCRIPTION("S3C24XX_UDA134X ALSA SoC audio driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* sound/soc/samsung/smartq_wm8987.c
+ *
+ * Copyright 2010 Maurus Cuelenaere <mcuelenaere@gmail.com>
+ *
+ * Based on smdk6410_wm8987.c
+ * Copyright 2007 Wolfson Microelectronics PLC. - linux@wolfsonmicro.com
+ * Graeme Gregory - graeme.gregory@wolfsonmicro.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include <asm/mach-types.h>
+
+#include "dma.h"
+#include "i2s.h"
+
+#include "../codecs/wm8750.h"
+
+/*
+ * WM8987 is register compatible with WM8750, so using that as base driver.
+ */
+
+static struct snd_soc_card snd_soc_smartq;
+
+static int smartq_hifi_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+ unsigned int clk = 0;
+ int ret;
+
+ switch (params_rate(params)) {
+ case 8000:
+ case 16000:
+ case 32000:
+ case 48000:
+ case 96000:
+ clk = 12288000;
+ break;
+ case 11025:
+ case 22050:
+ case 44100:
+ case 88200:
+ clk = 11289600;
+ break;
+ }
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ /* set cpu DAI configuration */
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS);
+ if (ret < 0)
+ return ret;
+
+ /* Use PCLK for I2S signal generation */
+ ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
+ 0, SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ /* Gate the RCLK output on PAD */
+ ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
+ 0, SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+/*
+ * SmartQ WM8987 HiFi DAI operations.
+ */
+static struct snd_soc_ops smartq_hifi_ops = {
+ .hw_params = smartq_hifi_hw_params,
+};
+
+static struct snd_soc_jack smartq_jack;
+
+static struct snd_soc_jack_pin smartq_jack_pins[] = {
+ /* Disable speaker when headphone is plugged in */
+ {
+ .pin = "Internal Speaker",
+ .mask = SND_JACK_HEADPHONE,
+ },
+};
+
+static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
+ {
+ .gpio = S3C64XX_GPL(12),
+ .name = "headphone detect",
+ .report = SND_JACK_HEADPHONE,
+ .debounce_time = 200,
+ },
+};
+
+static const struct snd_kcontrol_new wm8987_smartq_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Internal Speaker"),
+ SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+ SOC_DAPM_PIN_SWITCH("Internal Mic"),
+};
+
+static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *k,
+ int event)
+{
+ gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event));
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = {
+ SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event),
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_MIC("Internal Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+ {"Headphone Jack", NULL, "LOUT2"},
+ {"Headphone Jack", NULL, "ROUT2"},
+
+ {"Internal Speaker", NULL, "LOUT2"},
+ {"Internal Speaker", NULL, "ROUT2"},
+
+ {"Mic Bias", NULL, "Internal Mic"},
+ {"LINPUT2", NULL, "Mic Bias"},
+};
+
+static int smartq_wm8987_init(struct snd_soc_codec *codec)
+{
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ int err = 0;
+
+ /* Add SmartQ specific widgets */
+ snd_soc_dapm_new_controls(dapm, wm8987_dapm_widgets,
+ ARRAY_SIZE(wm8987_dapm_widgets));
+
+ /* add SmartQ specific controls */
+ err = snd_soc_add_controls(codec, wm8987_smartq_controls,
+ ARRAY_SIZE(wm8987_smartq_controls));
+
+ if (err < 0)
+ return err;
+
+ /* setup SmartQ specific audio path */
+ snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+
+ /* set endpoints to not connected */
+ snd_soc_dapm_nc_pin(dapm, "LINPUT1");
+ snd_soc_dapm_nc_pin(dapm, "RINPUT1");
+ snd_soc_dapm_nc_pin(dapm, "OUT3");
+ snd_soc_dapm_nc_pin(dapm, "ROUT1");
+
+ /* set endpoints to default off mode */
+ snd_soc_dapm_enable_pin(dapm, "Internal Speaker");
+ snd_soc_dapm_enable_pin(dapm, "Internal Mic");
+ snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
+
+ err = snd_soc_dapm_sync(dapm);
+ if (err)
+ return err;
+
+ /* Headphone jack detection */
+ err = snd_soc_jack_new(&snd_soc_smartq, "Headphone Jack",
+ SND_JACK_HEADPHONE, &smartq_jack);
+ if (err)
+ return err;
+
+ err = snd_soc_jack_add_pins(&smartq_jack, ARRAY_SIZE(smartq_jack_pins),
+ smartq_jack_pins);
+ if (err)
+ return err;
+
+ err = snd_soc_jack_add_gpios(&smartq_jack,
+ ARRAY_SIZE(smartq_jack_gpios),
+ smartq_jack_gpios);
+
+ return err;
+}
+
+static struct snd_soc_dai_link smartq_dai[] = {
+ {
+ .name = "wm8987",
+ .stream_name = "SmartQ Hi-Fi",
+ .cpu_dai_name = "samsung-i2s.0",
+ .codec_dai_name = "wm8750-hifi",
+ .platform_name = "samsung-audio",
+ .codec_name = "wm8750-codec.0-0x1a",
+ .init = smartq_wm8987_init,
+ .ops = &smartq_hifi_ops,
+ },
+};
+
+static struct snd_soc_card snd_soc_smartq = {
+ .name = "SmartQ",
+ .dai_link = smartq_dai,
+ .num_links = ARRAY_SIZE(smartq_dai),
+};
+
+static struct platform_device *smartq_snd_device;
+
+static int __init smartq_init(void)
+{
+ int ret;
+
+ if (!machine_is_smartq7() && !machine_is_smartq5()) {
+ pr_info("Only SmartQ is supported by this ASoC driver\n");
+ return -ENODEV;
+ }
+
+ smartq_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!smartq_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);
+
+ ret = platform_device_add(smartq_snd_device);
+ if (ret) {
+ platform_device_put(smartq_snd_device);
+ return ret;
+ }
+
+ /* Initialise GPIOs used by amplifiers */
+ ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
+ if (ret) {
+ dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n");
+ goto err_unregister_device;
+ }
+
+ /* Disable amplifiers */
+ ret = gpio_direction_output(S3C64XX_GPK(12), 1);
+ if (ret) {
+ dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
+ goto err_free_gpio_amp_shut;
+ }
+
+ return 0;
+
+err_free_gpio_amp_shut:
+ gpio_free(S3C64XX_GPK(12));
+err_unregister_device:
+ platform_device_unregister(smartq_snd_device);
+
+ return ret;
+}
+
+static void __exit smartq_exit(void)
+{
+ snd_soc_jack_free_gpios(&smartq_jack, ARRAY_SIZE(smartq_jack_gpios),
+ smartq_jack_gpios);
+
+ platform_device_unregister(smartq_snd_device);
+}
+
+module_init(smartq_init);
+module_exit(smartq_exit);
+
+/* Module information */
+MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
+MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * smdk2443_wm9710.c -- SoC audio for smdk2443
+ *
+ * Copyright 2007 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory
+ * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include "dma.h"
+#include "ac97.h"
+
+static struct snd_soc_card smdk2443;
+
+static struct snd_soc_dai_link smdk2443_dai[] = {
+{
+ .name = "AC97",
+ .stream_name = "AC97 HiFi",
+ .cpu_dai_name = "samsung-ac97",
+ .codec_dai_name = "ac97-hifi",
+ .codec_name = "ac97-codec",
+ .platform_name = "samsung-audio",
+},
+};
+
+static struct snd_soc_card smdk2443 = {
+ .name = "SMDK2443",
+ .dai_link = smdk2443_dai,
+ .num_links = ARRAY_SIZE(smdk2443_dai),
+};
+
+static struct platform_device *smdk2443_snd_ac97_device;
+
+static int __init smdk2443_init(void)
+{
+ int ret;
+
+ smdk2443_snd_ac97_device = platform_device_alloc("soc-audio", -1);
+ if (!smdk2443_snd_ac97_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(smdk2443_snd_ac97_device, &smdk2443);
+ ret = platform_device_add(smdk2443_snd_ac97_device);
+
+ if (ret)
+ platform_device_put(smdk2443_snd_ac97_device);
+
+ return ret;
+}
+
+static void __exit smdk2443_exit(void)
+{
+ platform_device_unregister(smdk2443_snd_ac97_device);
+}
+
+module_init(smdk2443_init);
+module_exit(smdk2443_exit);
+
+/* Module information */
+MODULE_AUTHOR("Graeme Gregory, graeme.gregory@wolfsonmicro.com, www.wolfsonmicro.com");
+MODULE_DESCRIPTION("ALSA SoC WM9710 SMDK2443");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * smdk_spdif.c -- S/PDIF audio for SMDK
+ *
+ * Copyright 2010 Samsung Electronics Co. Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/clk.h>
+
+#include <plat/devs.h>
+
+#include <sound/soc.h>
+
+#include "dma.h"
+#include "spdif.h"
+
+/* Audio clock settings are belonged to board specific part. Every
+ * board can set audio source clock setting which is matched with H/W
+ * like this function-'set_audio_clock_heirachy'.
+ */
+static int set_audio_clock_heirachy(struct platform_device *pdev)
+{
+ struct clk *fout_epll, *mout_epll, *sclk_audio0, *sclk_spdif;
+ int ret;
+
+ fout_epll = clk_get(NULL, "fout_epll");
+ if (IS_ERR(fout_epll)) {
+ printk(KERN_WARNING "%s: Cannot find fout_epll.\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ mout_epll = clk_get(NULL, "mout_epll");
+ if (IS_ERR(mout_epll)) {
+ printk(KERN_WARNING "%s: Cannot find mout_epll.\n",
+ __func__);
+ ret = -EINVAL;
+ goto out1;
+ }
+
+ sclk_audio0 = clk_get(&pdev->dev, "sclk_audio");
+ if (IS_ERR(sclk_audio0)) {
+ printk(KERN_WARNING "%s: Cannot find sclk_audio.\n",
+ __func__);
+ ret = -EINVAL;
+ goto out2;
+ }
+
+ sclk_spdif = clk_get(NULL, "sclk_spdif");
+ if (IS_ERR(sclk_spdif)) {
+ printk(KERN_WARNING "%s: Cannot find sclk_spdif.\n",
+ __func__);
+ ret = -EINVAL;
+ goto out3;
+ }
+
+ /* Set audio clock heirachy for S/PDIF */
+ clk_set_parent(mout_epll, fout_epll);
+ clk_set_parent(sclk_audio0, mout_epll);
+ clk_set_parent(sclk_spdif, sclk_audio0);
+
+ clk_put(sclk_spdif);
+out3:
+ clk_put(sclk_audio0);
+out2:
+ clk_put(mout_epll);
+out1:
+ clk_put(fout_epll);
+
+ return ret;
+}
+
+/* We should haved to set clock directly on this part because of clock
+ * scheme of Samsudng SoCs did not support to set rates from abstrct
+ * clock of it's heirachy.
+ */
+static int set_audio_clock_rate(unsigned long epll_rate,
+ unsigned long audio_rate)
+{
+ struct clk *fout_epll, *sclk_spdif;
+
+ fout_epll = clk_get(NULL, "fout_epll");
+ if (IS_ERR(fout_epll)) {
+ printk(KERN_ERR "%s: failed to get fout_epll\n", __func__);
+ return -ENOENT;
+ }
+
+ clk_set_rate(fout_epll, epll_rate);
+ clk_put(fout_epll);
+
+ sclk_spdif = clk_get(NULL, "sclk_spdif");
+ if (IS_ERR(sclk_spdif)) {
+ printk(KERN_ERR "%s: failed to get sclk_spdif\n", __func__);
+ return -ENOENT;
+ }
+
+ clk_set_rate(sclk_spdif, audio_rate);
+ clk_put(sclk_spdif);
+
+ return 0;
+}
+
+static int smdk_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ unsigned long pll_out, rclk_rate;
+ int ret, ratio;
+
+ switch (params_rate(params)) {
+ case 44100:
+ pll_out = 45158400;
+ break;
+ case 32000:
+ case 48000:
+ case 96000:
+ pll_out = 49152000;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Setting ratio to 512fs helps to use S/PDIF with HDMI without
+ * modify S/PDIF ASoC machine driver.
+ */
+ ratio = 512;
+ rclk_rate = params_rate(params) * ratio;
+
+ /* Set audio source clock rates */
+ ret = set_audio_clock_rate(pll_out, rclk_rate);
+ if (ret < 0)
+ return ret;
+
+ /* Set S/PDIF uses internal source clock */
+ ret = snd_soc_dai_set_sysclk(cpu_dai, SND_SOC_SPDIF_INT_MCLK,
+ rclk_rate, SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ return ret;
+}
+
+static struct snd_soc_ops smdk_spdif_ops = {
+ .hw_params = smdk_hw_params,
+};
+
+static struct snd_soc_card smdk;
+
+static struct snd_soc_dai_link smdk_dai = {
+ .name = "S/PDIF",
+ .stream_name = "S/PDIF PCM Playback",
+ .platform_name = "samsung-audio",
+ .cpu_dai_name = "samsung-spdif",
+ .codec_dai_name = "dit-hifi",
+ .codec_name = "spdif-dit",
+ .ops = &smdk_spdif_ops,
+};
+
+static struct snd_soc_card smdk = {
+ .name = "SMDK-S/PDIF",
+ .dai_link = &smdk_dai,
+ .num_links = 1,
+};
+
+static struct platform_device *smdk_snd_spdif_dit_device;
+static struct platform_device *smdk_snd_spdif_device;
+
+static int __init smdk_init(void)
+{
+ int ret;
+
+ smdk_snd_spdif_dit_device = platform_device_alloc("spdif-dit", -1);
+ if (!smdk_snd_spdif_dit_device)
+ return -ENOMEM;
+
+ ret = platform_device_add(smdk_snd_spdif_dit_device);
+ if (ret)
+ goto err2;
+
+ smdk_snd_spdif_device = platform_device_alloc("soc-audio", -1);
+ if (!smdk_snd_spdif_device) {
+ ret = -ENOMEM;
+ goto err2;
+ }
+
+ platform_set_drvdata(smdk_snd_spdif_device, &smdk);
+
+ ret = platform_device_add(smdk_snd_spdif_device);
+ if (ret)
+ goto err1;
+
+ /* Set audio clock heirachy manually */
+ ret = set_audio_clock_heirachy(smdk_snd_spdif_device);
+ if (ret)
+ goto err1;
+
+ return 0;
+err1:
+ platform_device_put(smdk_snd_spdif_device);
+err2:
+ platform_device_put(smdk_snd_spdif_dit_device);
+ return ret;
+}
+
+static void __exit smdk_exit(void)
+{
+ platform_device_unregister(smdk_snd_spdif_device);
+}
+
+module_init(smdk_init);
+module_exit(smdk_exit);
+
+MODULE_AUTHOR("Seungwhan Youn, <sw.youn@samsung.com>");
+MODULE_DESCRIPTION("ALSA SoC SMDK+S/PDIF");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * smdk_wm8580.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co. Ltd
+ * Author: Jaswinder Singh <jassi.brar@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+
+#include "../codecs/wm8580.h"
+#include "dma.h"
+#include "i2s.h"
+
+/*
+ * Default CFG switch settings to use this driver:
+ *
+ * SMDK6410: Set CFG1 1-3 Off, CFG2 1-4 On
+ */
+
+/* SMDK has a 12MHZ crystal attached to WM8580 */
+#define SMDK_WM8580_FREQ 12000000
+
+static int smdk_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ unsigned int pll_out;
+ int bfs, rfs, ret;
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_U8:
+ case SNDRV_PCM_FORMAT_S8:
+ bfs = 16;
+ break;
+ case SNDRV_PCM_FORMAT_U16_LE:
+ case SNDRV_PCM_FORMAT_S16_LE:
+ bfs = 32;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* The Fvco for WM8580 PLLs must fall within [90,100]MHz.
+ * This criterion can't be met if we request PLL output
+ * as {8000x256, 64000x256, 11025x256}Hz.
+ * As a wayout, we rather change rfs to a minimum value that
+ * results in (params_rate(params) * rfs), and itself, acceptable
+ * to both - the CODEC and the CPU.
+ */
+ switch (params_rate(params)) {
+ case 16000:
+ case 22050:
+ case 32000:
+ case 44100:
+ case 48000:
+ case 88200:
+ case 96000:
+ rfs = 256;
+ break;
+ case 64000:
+ rfs = 384;
+ break;
+ case 8000:
+ case 11025:
+ rfs = 512;
+ break;
+ default:
+ return -EINVAL;
+ }
+ pll_out = params_rate(params) * rfs;
+
+ /* Set the Codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
+ | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* Set the AP DAI configuration */
+ ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
+ | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* Set WM8580 to drive MCLK from its PLLA */
+ ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_MCLK,
+ WM8580_CLKSRC_PLLA);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_pll(codec_dai, WM8580_PLLA, 0,
+ SMDK_WM8580_FREQ, pll_out);
+ if (ret < 0)
+ return ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8580_CLKSRC_PLLA,
+ pll_out, SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+/*
+ * SMDK WM8580 DAI operations.
+ */
+static struct snd_soc_ops smdk_ops = {
+ .hw_params = smdk_hw_params,
+};
+
+/* SMDK Playback widgets */
+static const struct snd_soc_dapm_widget wm8580_dapm_widgets_pbk[] = {
+ SND_SOC_DAPM_HP("Front", NULL),
+ SND_SOC_DAPM_HP("Center+Sub", NULL),
+ SND_SOC_DAPM_HP("Rear", NULL),
+};
+
+/* SMDK Capture widgets */
+static const struct snd_soc_dapm_widget wm8580_dapm_widgets_cpt[] = {
+ SND_SOC_DAPM_MIC("MicIn", NULL),
+ SND_SOC_DAPM_LINE("LineIn", NULL),
+};
+
+/* SMDK-PAIFTX connections */
+static const struct snd_soc_dapm_route audio_map_tx[] = {
+ /* MicIn feeds AINL */
+ {"AINL", NULL, "MicIn"},
+
+ /* LineIn feeds AINL/R */
+ {"AINL", NULL, "LineIn"},
+ {"AINR", NULL, "LineIn"},
+};
+
+/* SMDK-PAIFRX connections */
+static const struct snd_soc_dapm_route audio_map_rx[] = {
+ /* Front Left/Right are fed VOUT1L/R */
+ {"Front", NULL, "VOUT1L"},
+ {"Front", NULL, "VOUT1R"},
+
+ /* Center/Sub are fed VOUT2L/R */
+ {"Center+Sub", NULL, "VOUT2L"},
+ {"Center+Sub", NULL, "VOUT2R"},
+
+ /* Rear Left/Right are fed VOUT3L/R */
+ {"Rear", NULL, "VOUT3L"},
+ {"Rear", NULL, "VOUT3R"},
+};
+
+static int smdk_wm8580_init_paiftx(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ /* Add smdk specific Capture widgets */
+ snd_soc_dapm_new_controls(dapm, wm8580_dapm_widgets_cpt,
+ ARRAY_SIZE(wm8580_dapm_widgets_cpt));
+
+ /* Set up PAIFTX audio path */
+ snd_soc_dapm_add_routes(dapm, audio_map_tx, ARRAY_SIZE(audio_map_tx));
+
+ /* Enabling the microphone requires the fitting of a 0R
+ * resistor to connect the line from the microphone jack.
+ */
+ snd_soc_dapm_disable_pin(dapm, "MicIn");
+
+ /* signal a DAPM event */
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+static int smdk_wm8580_init_paifrx(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ /* Add smdk specific Playback widgets */
+ snd_soc_dapm_new_controls(dapm, wm8580_dapm_widgets_pbk,
+ ARRAY_SIZE(wm8580_dapm_widgets_pbk));
+
+ /* Set up PAIFRX audio path */
+ snd_soc_dapm_add_routes(dapm, audio_map_rx, ARRAY_SIZE(audio_map_rx));
+
+ /* signal a DAPM event */
+ snd_soc_dapm_sync(dapm);
+
+ return 0;
+}
+
+enum {
+ PRI_PLAYBACK = 0,
+ PRI_CAPTURE,
+ SEC_PLAYBACK,
+};
+
+static struct snd_soc_dai_link smdk_dai[] = {
+ [PRI_PLAYBACK] = { /* Primary Playback i/f */
+ .name = "WM8580 PAIF RX",
+ .stream_name = "Playback",
+ .cpu_dai_name = "samsung-i2s.2",
+ .codec_dai_name = "wm8580-hifi-playback",
+ .platform_name = "samsung-audio",
+ .codec_name = "wm8580-codec.0-001b",
+ .init = smdk_wm8580_init_paifrx,
+ .ops = &smdk_ops,
+ },
+ [PRI_CAPTURE] = { /* Primary Capture i/f */
+ .name = "WM8580 PAIF TX",
+ .stream_name = "Capture",
+ .cpu_dai_name = "samsung-i2s.2",
+ .codec_dai_name = "wm8580-hifi-capture",
+ .platform_name = "samsung-audio",
+ .codec_name = "wm8580-codec.0-001b",
+ .init = smdk_wm8580_init_paiftx,
+ .ops = &smdk_ops,
+ },
+ [SEC_PLAYBACK] = { /* Sec_Fifo Playback i/f */
+ .name = "Sec_FIFO TX",
+ .stream_name = "Playback",
+ .cpu_dai_name = "samsung-i2s.x",
+ .codec_dai_name = "wm8580-hifi-playback",
+ .platform_name = "samsung-audio",
+ .codec_name = "wm8580-codec.0-001b",
+ .init = smdk_wm8580_init_paifrx,
+ .ops = &smdk_ops,
+ },
+};
+
+static struct snd_soc_card smdk = {
+ .name = "SMDK-I2S",
+ .dai_link = smdk_dai,
+ .num_links = 2,
+};
+
+static struct platform_device *smdk_snd_device;
+
+static int __init smdk_audio_init(void)
+{
+ int ret;
+ char *str;
+
+ if (machine_is_smdkc100()) {
+ smdk.num_links = 3;
+ /* S5PC100 has I2S0 as v5 */
+ str = (char *)smdk_dai[PRI_PLAYBACK].cpu_dai_name;
+ str[strlen(str) - 1] = '0';
+ str = (char *)smdk_dai[PRI_CAPTURE].cpu_dai_name;
+ str[strlen(str) - 1] = '0';
+ /* Secondary is at offset SAMSUNG_I2S_SECOFF from Primary */
+ str = (char *)smdk_dai[SEC_PLAYBACK].cpu_dai_name;
+ str[strlen(str) - 1] = '0' + SAMSUNG_I2S_SECOFF;
+ }
+
+ smdk_snd_device = platform_device_alloc("soc-audio", -1);
+ if (!smdk_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(smdk_snd_device, &smdk);
+ ret = platform_device_add(smdk_snd_device);
+
+ if (ret)
+ platform_device_put(smdk_snd_device);
+
+ return ret;
+}
+module_init(smdk_audio_init);
+
+MODULE_AUTHOR("Jaswinder Singh, jassi.brar@samsung.com");
+MODULE_DESCRIPTION("ALSA SoC SMDK WM8580");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * smdk_wm9713.c -- SoC audio for SMDK
+ *
+ * Copyright 2010 Samsung Electronics Co. Ltd.
+ * Author: Jaswinder Singh Brar <jassi.brar@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <sound/soc.h>
+
+#include "dma.h"
+#include "ac97.h"
+
+static struct snd_soc_card smdk;
+
+/*
+ * Default CFG switch settings to use this driver:
+ *
+ * SMDK6410: Set CFG1 1-3 On, CFG2 1-4 Off
+ * SMDKC100: Set CFG6 1-3 On, CFG7 1 On
+ * SMDKC110: Set CFGB10 1-2 Off, CFGB12 1-3 On
+ * SMDKV210: Set CFGB10 1-2 Off, CFGB12 1-3 On
+ */
+
+/*
+ Playback (HeadPhone):-
+ $ amixer sset 'Headphone' unmute
+ $ amixer sset 'Right Headphone Out Mux' 'Headphone'
+ $ amixer sset 'Left Headphone Out Mux' 'Headphone'
+ $ amixer sset 'Right HP Mixer PCM' unmute
+ $ amixer sset 'Left HP Mixer PCM' unmute
+
+ Capture (LineIn):-
+ $ amixer sset 'Right Capture Source' 'Line'
+ $ amixer sset 'Left Capture Source' 'Line'
+*/
+
+static struct snd_soc_dai_link smdk_dai = {
+ .name = "AC97",
+ .stream_name = "AC97 PCM",
+ .platform_name = "samsung-audio",
+ .cpu_dai_name = "samsung-ac97",
+ .codec_dai_name = "wm9713-hifi",
+ .codec_name = "wm9713-codec",
+};
+
+static struct snd_soc_card smdk = {
+ .name = "SMDK WM9713",
+ .dai_link = &smdk_dai,
+ .num_links = 1,
+};
+
+static struct platform_device *smdk_snd_wm9713_device;
+static struct platform_device *smdk_snd_ac97_device;
+
+static int __init smdk_init(void)
+{
+ int ret;
+
+ smdk_snd_wm9713_device = platform_device_alloc("wm9713-codec", -1);
+ if (!smdk_snd_wm9713_device)
+ return -ENOMEM;
+
+ ret = platform_device_add(smdk_snd_wm9713_device);
+ if (ret)
+ goto err;
+
+ smdk_snd_ac97_device = platform_device_alloc("soc-audio", -1);
+ if (!smdk_snd_ac97_device) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ platform_set_drvdata(smdk_snd_ac97_device, &smdk);
+
+ ret = platform_device_add(smdk_snd_ac97_device);
+ if (ret) {
+ platform_device_put(smdk_snd_ac97_device);
+ goto err;
+ }
+
+ return 0;
+err:
+ platform_device_put(smdk_snd_wm9713_device);
+ return ret;
+}
+
+static void __exit smdk_exit(void)
+{
+ platform_device_unregister(smdk_snd_ac97_device);
+ platform_device_unregister(smdk_snd_wm9713_device);
+}
+
+module_init(smdk_init);
+module_exit(smdk_exit);
+
+/* Module information */
+MODULE_AUTHOR("Jaswinder Singh Brar, jassi.brar@samsung.com");
+MODULE_DESCRIPTION("ALSA SoC SMDK+WM9713");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* sound/soc/samsung/spdif.c
+ *
+ * ALSA SoC Audio Layer - Samsung S/PDIF Controller driver
+ *
+ * Copyright (c) 2010 Samsung Electronics Co. Ltd
+ * http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <plat/audio.h>
+#include <mach/dma.h>
+
+#include "dma.h"
+#include "spdif.h"
+
+/* Registers */
+#define CLKCON 0x00
+#define CON 0x04
+#define BSTAS 0x08
+#define CSTAS 0x0C
+#define DATA_OUTBUF 0x10
+#define DCNT 0x14
+#define BSTAS_S 0x18
+#define DCNT_S 0x1C
+
+#define CLKCTL_MASK 0x7
+#define CLKCTL_MCLK_EXT (0x1 << 2)
+#define CLKCTL_PWR_ON (0x1 << 0)
+
+#define CON_MASK 0x3ffffff
+#define CON_FIFO_TH_SHIFT 19
+#define CON_FIFO_TH_MASK (0x7 << 19)
+#define CON_USERDATA_23RDBIT (0x1 << 12)
+
+#define CON_SW_RESET (0x1 << 5)
+
+#define CON_MCLKDIV_MASK (0x3 << 3)
+#define CON_MCLKDIV_256FS (0x0 << 3)
+#define CON_MCLKDIV_384FS (0x1 << 3)
+#define CON_MCLKDIV_512FS (0x2 << 3)
+
+#define CON_PCM_MASK (0x3 << 1)
+#define CON_PCM_16BIT (0x0 << 1)
+#define CON_PCM_20BIT (0x1 << 1)
+#define CON_PCM_24BIT (0x2 << 1)
+
+#define CON_PCM_DATA (0x1 << 0)
+
+#define CSTAS_MASK 0x3fffffff
+#define CSTAS_SAMP_FREQ_MASK (0xF << 24)
+#define CSTAS_SAMP_FREQ_44 (0x0 << 24)
+#define CSTAS_SAMP_FREQ_48 (0x2 << 24)
+#define CSTAS_SAMP_FREQ_32 (0x3 << 24)
+#define CSTAS_SAMP_FREQ_96 (0xA << 24)
+
+#define CSTAS_CATEGORY_MASK (0xFF << 8)
+#define CSTAS_CATEGORY_CODE_CDP (0x01 << 8)
+
+#define CSTAS_NO_COPYRIGHT (0x1 << 2)
+
+/**
+ * struct samsung_spdif_info - Samsung S/PDIF Controller information
+ * @lock: Spin lock for S/PDIF.
+ * @dev: The parent device passed to use from the probe.
+ * @regs: The pointer to the device register block.
+ * @clk_rate: Current clock rate for calcurate ratio.
+ * @pclk: The peri-clock pointer for spdif master operation.
+ * @sclk: The source clock pointer for making sync signals.
+ * @save_clkcon: Backup clkcon reg. in suspend.
+ * @save_con: Backup con reg. in suspend.
+ * @save_cstas: Backup cstas reg. in suspend.
+ * @dma_playback: DMA information for playback channel.
+ */
+struct samsung_spdif_info {
+ spinlock_t lock;
+ struct device *dev;
+ void __iomem *regs;
+ unsigned long clk_rate;
+ struct clk *pclk;
+ struct clk *sclk;
+ u32 saved_clkcon;
+ u32 saved_con;
+ u32 saved_cstas;
+ struct s3c_dma_params *dma_playback;
+};
+
+static struct s3c2410_dma_client spdif_dma_client_out = {
+ .name = "S/PDIF Stereo out",
+};
+
+static struct s3c_dma_params spdif_stereo_out;
+static struct samsung_spdif_info spdif_info;
+
+static inline struct samsung_spdif_info *to_info(struct snd_soc_dai *cpu_dai)
+{
+ return snd_soc_dai_get_drvdata(cpu_dai);
+}
+
+static void spdif_snd_txctrl(struct samsung_spdif_info *spdif, int on)
+{
+ void __iomem *regs = spdif->regs;
+ u32 clkcon;
+
+ dev_dbg(spdif->dev, "Entered %s\n", __func__);
+
+ clkcon = readl(regs + CLKCON) & CLKCTL_MASK;
+ if (on)
+ writel(clkcon | CLKCTL_PWR_ON, regs + CLKCON);
+ else
+ writel(clkcon & ~CLKCTL_PWR_ON, regs + CLKCON);
+}
+
+static int spdif_set_sysclk(struct snd_soc_dai *cpu_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct samsung_spdif_info *spdif = to_info(cpu_dai);
+ u32 clkcon;
+
+ dev_dbg(spdif->dev, "Entered %s\n", __func__);
+
+ clkcon = readl(spdif->regs + CLKCON);
+
+ if (clk_id == SND_SOC_SPDIF_INT_MCLK)
+ clkcon &= ~CLKCTL_MCLK_EXT;
+ else
+ clkcon |= CLKCTL_MCLK_EXT;
+
+ writel(clkcon, spdif->regs + CLKCON);
+
+ spdif->clk_rate = freq;
+
+ return 0;
+}
+
+static int spdif_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct samsung_spdif_info *spdif = to_info(rtd->cpu_dai);
+ unsigned long flags;
+
+ dev_dbg(spdif->dev, "Entered %s\n", __func__);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ spin_lock_irqsave(&spdif->lock, flags);
+ spdif_snd_txctrl(spdif, 1);
+ spin_unlock_irqrestore(&spdif->lock, flags);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ spin_lock_irqsave(&spdif->lock, flags);
+ spdif_snd_txctrl(spdif, 0);
+ spin_unlock_irqrestore(&spdif->lock, flags);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int spdif_sysclk_ratios[] = {
+ 512, 384, 256,
+};
+
+static int spdif_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *socdai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct samsung_spdif_info *spdif = to_info(rtd->cpu_dai);
+ void __iomem *regs = spdif->regs;
+ struct s3c_dma_params *dma_data;
+ u32 con, clkcon, cstas;
+ unsigned long flags;
+ int i, ratio;
+
+ dev_dbg(spdif->dev, "Entered %s\n", __func__);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dma_data = spdif->dma_playback;
+ else {
+ dev_err(spdif->dev, "Capture is not supported\n");
+ return -EINVAL;
+ }
+
+ snd_soc_dai_set_dma_data(rtd->cpu_dai, substream, dma_data);
+
+ spin_lock_irqsave(&spdif->lock, flags);
+
+ con = readl(regs + CON) & CON_MASK;
+ cstas = readl(regs + CSTAS) & CSTAS_MASK;
+ clkcon = readl(regs + CLKCON) & CLKCTL_MASK;
+
+ con &= ~CON_FIFO_TH_MASK;
+ con |= (0x7 << CON_FIFO_TH_SHIFT);
+ con |= CON_USERDATA_23RDBIT;
+ con |= CON_PCM_DATA;
+
+ con &= ~CON_PCM_MASK;
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ con |= CON_PCM_16BIT;
+ break;
+ default:
+ dev_err(spdif->dev, "Unsupported data size.\n");
+ goto err;
+ }
+
+ ratio = spdif->clk_rate / params_rate(params);
+ for (i = 0; i < ARRAY_SIZE(spdif_sysclk_ratios); i++)
+ if (ratio == spdif_sysclk_ratios[i])
+ break;
+ if (i == ARRAY_SIZE(spdif_sysclk_ratios)) {
+ dev_err(spdif->dev, "Invalid clock ratio %ld/%d\n",
+ spdif->clk_rate, params_rate(params));
+ goto err;
+ }
+
+ con &= ~CON_MCLKDIV_MASK;
+ switch (ratio) {
+ case 256:
+ con |= CON_MCLKDIV_256FS;
+ break;
+ case 384:
+ con |= CON_MCLKDIV_384FS;
+ break;
+ case 512:
+ con |= CON_MCLKDIV_512FS;
+ break;
+ }
+
+ cstas &= ~CSTAS_SAMP_FREQ_MASK;
+ switch (params_rate(params)) {
+ case 44100:
+ cstas |= CSTAS_SAMP_FREQ_44;
+ break;
+ case 48000:
+ cstas |= CSTAS_SAMP_FREQ_48;
+ break;
+ case 32000:
+ cstas |= CSTAS_SAMP_FREQ_32;
+ break;
+ case 96000:
+ cstas |= CSTAS_SAMP_FREQ_96;
+ break;
+ default:
+ dev_err(spdif->dev, "Invalid sampling rate %d\n",
+ params_rate(params));
+ goto err;
+ }
+
+ cstas &= ~CSTAS_CATEGORY_MASK;
+ cstas |= CSTAS_CATEGORY_CODE_CDP;
+ cstas |= CSTAS_NO_COPYRIGHT;
+
+ writel(con, regs + CON);
+ writel(cstas, regs + CSTAS);
+ writel(clkcon, regs + CLKCON);
+
+ spin_unlock_irqrestore(&spdif->lock, flags);
+
+ return 0;
+err:
+ spin_unlock_irqrestore(&spdif->lock, flags);
+ return -EINVAL;
+}
+
+static void spdif_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct samsung_spdif_info *spdif = to_info(rtd->cpu_dai);
+ void __iomem *regs = spdif->regs;
+ u32 con, clkcon;
+
+ dev_dbg(spdif->dev, "Entered %s\n", __func__);
+
+ con = readl(regs + CON) & CON_MASK;
+ clkcon = readl(regs + CLKCON) & CLKCTL_MASK;
+
+ writel(con | CON_SW_RESET, regs + CON);
+ cpu_relax();
+
+ writel(clkcon & ~CLKCTL_PWR_ON, regs + CLKCON);
+}
+
+#ifdef CONFIG_PM
+static int spdif_suspend(struct snd_soc_dai *cpu_dai)
+{
+ struct samsung_spdif_info *spdif = to_info(cpu_dai);
+ u32 con = spdif->saved_con;
+
+ dev_dbg(spdif->dev, "Entered %s\n", __func__);
+
+ spdif->saved_clkcon = readl(spdif->regs + CLKCON) & CLKCTL_MASK;
+ spdif->saved_con = readl(spdif->regs + CON) & CON_MASK;
+ spdif->saved_cstas = readl(spdif->regs + CSTAS) & CSTAS_MASK;
+
+ writel(con | CON_SW_RESET, spdif->regs + CON);
+ cpu_relax();
+
+ return 0;
+}
+
+static int spdif_resume(struct snd_soc_dai *cpu_dai)
+{
+ struct samsung_spdif_info *spdif = to_info(cpu_dai);
+
+ dev_dbg(spdif->dev, "Entered %s\n", __func__);
+
+ writel(spdif->saved_clkcon, spdif->regs + CLKCON);
+ writel(spdif->saved_con, spdif->regs + CON);
+ writel(spdif->saved_cstas, spdif->regs + CSTAS);
+
+ return 0;
+}
+#else
+#define spdif_suspend NULL
+#define spdif_resume NULL
+#endif
+
+static struct snd_soc_dai_ops spdif_dai_ops = {
+ .set_sysclk = spdif_set_sysclk,
+ .trigger = spdif_trigger,
+ .hw_params = spdif_hw_params,
+ .shutdown = spdif_shutdown,
+};
+
+struct snd_soc_dai_driver samsung_spdif_dai = {
+ .name = "samsung-spdif",
+ .playback = {
+ .stream_name = "S/PDIF Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = (SNDRV_PCM_RATE_32000 |
+ SNDRV_PCM_RATE_44100 |
+ SNDRV_PCM_RATE_48000 |
+ SNDRV_PCM_RATE_96000),
+ .formats = SNDRV_PCM_FMTBIT_S16_LE, },
+ .ops = &spdif_dai_ops,
+ .suspend = spdif_suspend,
+ .resume = spdif_resume,
+};
+
+static __devinit int spdif_probe(struct platform_device *pdev)
+{
+ struct s3c_audio_pdata *spdif_pdata;
+ struct resource *mem_res, *dma_res;
+ struct samsung_spdif_info *spdif;
+ int ret;
+
+ spdif_pdata = pdev->dev.platform_data;
+
+ dev_dbg(&pdev->dev, "Entered %s\n", __func__);
+
+ dma_res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!dma_res) {
+ dev_err(&pdev->dev, "Unable to get dma resource.\n");
+ return -ENXIO;
+ }
+
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem_res) {
+ dev_err(&pdev->dev, "Unable to get register resource.\n");
+ return -ENXIO;
+ }
+
+ if (spdif_pdata && spdif_pdata->cfg_gpio
+ && spdif_pdata->cfg_gpio(pdev)) {
+ dev_err(&pdev->dev, "Unable to configure GPIO pins\n");
+ return -EINVAL;
+ }
+
+ spdif = &spdif_info;
+ spdif->dev = &pdev->dev;
+
+ spin_lock_init(&spdif->lock);
+
+ spdif->pclk = clk_get(&pdev->dev, "spdif");
+ if (IS_ERR(spdif->pclk)) {
+ dev_err(&pdev->dev, "failed to get peri-clock\n");
+ ret = -ENOENT;
+ goto err0;
+ }
+ clk_enable(spdif->pclk);
+
+ spdif->sclk = clk_get(&pdev->dev, "sclk_spdif");
+ if (IS_ERR(spdif->sclk)) {
+ dev_err(&pdev->dev, "failed to get internal source clock\n");
+ ret = -ENOENT;
+ goto err1;
+ }
+ clk_enable(spdif->sclk);
+
+ /* Request S/PDIF Register's memory region */
+ if (!request_mem_region(mem_res->start,
+ resource_size(mem_res), "samsung-spdif")) {
+ dev_err(&pdev->dev, "Unable to request register region\n");
+ ret = -EBUSY;
+ goto err2;
+ }
+
+ spdif->regs = ioremap(mem_res->start, 0x100);
+ if (spdif->regs == NULL) {
+ dev_err(&pdev->dev, "Cannot ioremap registers\n");
+ ret = -ENXIO;
+ goto err3;
+ }
+
+ dev_set_drvdata(&pdev->dev, spdif);
+
+ ret = snd_soc_register_dai(&pdev->dev, &samsung_spdif_dai);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "fail to register dai\n");
+ goto err4;
+ }
+
+ spdif_stereo_out.dma_size = 2;
+ spdif_stereo_out.client = &spdif_dma_client_out;
+ spdif_stereo_out.dma_addr = mem_res->start + DATA_OUTBUF;
+ spdif_stereo_out.channel = dma_res->start;
+
+ spdif->dma_playback = &spdif_stereo_out;
+
+ return 0;
+
+err4:
+ iounmap(spdif->regs);
+err3:
+ release_mem_region(mem_res->start, resource_size(mem_res));
+err2:
+ clk_disable(spdif->sclk);
+ clk_put(spdif->sclk);
+err1:
+ clk_disable(spdif->pclk);
+ clk_put(spdif->pclk);
+err0:
+ return ret;
+}
+
+static __devexit int spdif_remove(struct platform_device *pdev)
+{
+ struct samsung_spdif_info *spdif = &spdif_info;
+ struct resource *mem_res;
+
+ snd_soc_unregister_dai(&pdev->dev);
+
+ iounmap(spdif->regs);
+
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (mem_res)
+ release_mem_region(mem_res->start, resource_size(mem_res));
+
+ clk_disable(spdif->sclk);
+ clk_put(spdif->sclk);
+ clk_disable(spdif->pclk);
+ clk_put(spdif->pclk);
+
+ return 0;
+}
+
+static struct platform_driver samsung_spdif_driver = {
+ .probe = spdif_probe,
+ .remove = spdif_remove,
+ .driver = {
+ .name = "samsung-spdif",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init spdif_init(void)
+{
+ return platform_driver_register(&samsung_spdif_driver);
+}
+module_init(spdif_init);
+
+static void __exit spdif_exit(void)
+{
+ platform_driver_unregister(&samsung_spdif_driver);
+}
+module_exit(spdif_exit);
+
+MODULE_AUTHOR("Seungwhan Youn, <sw.youn@samsung.com>");
+MODULE_DESCRIPTION("Samsung S/PDIF Controller Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:samsung-spdif");
--- /dev/null
+/* sound/soc/samsung/spdif.h
+ *
+ * ALSA SoC Audio Layer - Samsung S/PDIF Controller driver
+ *
+ * Copyright (c) 2010 Samsung Electronics Co. Ltd
+ * http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __SND_SOC_SAMSUNG_SPDIF_H
+#define __SND_SOC_SAMSUNG_SPDIF_H __FILE__
+
+#define SND_SOC_SPDIF_INT_MCLK 0
+#define SND_SOC_SPDIF_EXT_MCLK 1
+
+#endif /* __SND_SOC_SAMSUNG_SPDIF_H */
projects / openwrt / staging / blogic.git / commitdiff