To compile this driver as a module, choose M here: the
module will be called saa7115.
-config VIDEO_SAA7191
- tristate "Philips SAA7191 video decoder"
- depends on VIDEO_V4L2 && I2C
- ---help---
- Support for the Philips SAA7191 video decoder.
-
- To compile this driver as a module, choose M here: the
- module will be called saa7191.
-
config VIDEO_TVP514X
tristate "Texas Instruments TVP514x video decoder"
depends on VIDEO_V4L2 && I2C
obj-$(CONFIG_VIDEO_SAA717X) += saa717x.o
obj-$(CONFIG_VIDEO_SAA7127) += saa7127.o
obj-$(CONFIG_VIDEO_SAA7185) += saa7185.o
-obj-$(CONFIG_VIDEO_SAA7191) += saa7191.o
obj-$(CONFIG_VIDEO_SAA6752HS) += saa6752hs.o
obj-$(CONFIG_VIDEO_ADV7170) += adv7170.o
obj-$(CONFIG_VIDEO_ADV7175) += adv7175.o
+++ /dev/null
-/*
- * saa7191.c - Philips SAA7191 video decoder driver
- *
- * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
- * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
- *
- * 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/errno.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-
-#include <linux/videodev2.h>
-#include <linux/i2c.h>
-#include <media/v4l2-device.h>
-
-#include "saa7191.h"
-
-#define SAA7191_MODULE_VERSION "0.0.5"
-
-MODULE_DESCRIPTION("Philips SAA7191 video decoder driver");
-MODULE_VERSION(SAA7191_MODULE_VERSION);
-MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
-MODULE_LICENSE("GPL");
-
-
-// #define SAA7191_DEBUG
-
-#ifdef SAA7191_DEBUG
-#define dprintk(x...) printk("SAA7191: " x);
-#else
-#define dprintk(x...)
-#endif
-
-#define SAA7191_SYNC_COUNT 30
-#define SAA7191_SYNC_DELAY 100 /* milliseconds */
-
-struct saa7191 {
- struct v4l2_subdev sd;
-
- /* the register values are stored here as the actual
- * I2C-registers are write-only */
- u8 reg[25];
-
- int input;
- v4l2_std_id norm;
-};
-
-static inline struct saa7191 *to_saa7191(struct v4l2_subdev *sd)
-{
- return container_of(sd, struct saa7191, sd);
-}
-
-static const u8 initseq[] = {
- 0, /* Subaddress */
-
- 0x50, /* (0x50) SAA7191_REG_IDEL */
-
- /* 50 Hz signal timing */
- 0x30, /* (0x30) SAA7191_REG_HSYB */
- 0x00, /* (0x00) SAA7191_REG_HSYS */
- 0xe8, /* (0xe8) SAA7191_REG_HCLB */
- 0xb6, /* (0xb6) SAA7191_REG_HCLS */
- 0xf4, /* (0xf4) SAA7191_REG_HPHI */
-
- /* control */
- SAA7191_LUMA_APER_1, /* (0x01) SAA7191_REG_LUMA - CVBS mode */
- 0x00, /* (0x00) SAA7191_REG_HUEC */
- 0xf8, /* (0xf8) SAA7191_REG_CKTQ */
- 0xf8, /* (0xf8) SAA7191_REG_CKTS */
- 0x90, /* (0x90) SAA7191_REG_PLSE */
- 0x90, /* (0x90) SAA7191_REG_SESE */
- 0x00, /* (0x00) SAA7191_REG_GAIN */
- SAA7191_STDC_NFEN | SAA7191_STDC_HRMV, /* (0x0c) SAA7191_REG_STDC
- * - not SECAM,
- * slow time constant */
- SAA7191_IOCK_OEDC | SAA7191_IOCK_OEHS | SAA7191_IOCK_OEVS
- | SAA7191_IOCK_OEDY, /* (0x78) SAA7191_REG_IOCK
- * - chroma from CVBS, GPSW1 & 2 off */
- SAA7191_CTL3_AUFD | SAA7191_CTL3_SCEN | SAA7191_CTL3_OFTS
- | SAA7191_CTL3_YDEL0, /* (0x99) SAA7191_REG_CTL3
- * - automatic field detection */
- 0x00, /* (0x00) SAA7191_REG_CTL4 */
- 0x2c, /* (0x2c) SAA7191_REG_CHCV - PAL nominal value */
- 0x00, /* unused */
- 0x00, /* unused */
-
- /* 60 Hz signal timing */
- 0x34, /* (0x34) SAA7191_REG_HS6B */
- 0x0a, /* (0x0a) SAA7191_REG_HS6S */
- 0xf4, /* (0xf4) SAA7191_REG_HC6B */
- 0xce, /* (0xce) SAA7191_REG_HC6S */
- 0xf4, /* (0xf4) SAA7191_REG_HP6I */
-};
-
-/* SAA7191 register handling */
-
-static u8 saa7191_read_reg(struct v4l2_subdev *sd, u8 reg)
-{
- return to_saa7191(sd)->reg[reg];
-}
-
-static int saa7191_read_status(struct v4l2_subdev *sd, u8 *value)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- int ret;
-
- ret = i2c_master_recv(client, value, 1);
- if (ret < 0) {
- printk(KERN_ERR "SAA7191: saa7191_read_status(): read failed\n");
- return ret;
- }
-
- return 0;
-}
-
-
-static int saa7191_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
-
- to_saa7191(sd)->reg[reg] = value;
- return i2c_smbus_write_byte_data(client, reg, value);
-}
-
-/* the first byte of data must be the first subaddress number (register) */
-static int saa7191_write_block(struct v4l2_subdev *sd,
- u8 length, const u8 *data)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct saa7191 *decoder = to_saa7191(sd);
- int i;
- int ret;
-
- for (i = 0; i < (length - 1); i++) {
- decoder->reg[data[0] + i] = data[i + 1];
- }
-
- ret = i2c_master_send(client, data, length);
- if (ret < 0) {
- printk(KERN_ERR "SAA7191: saa7191_write_block(): "
- "write failed\n");
- return ret;
- }
-
- return 0;
-}
-
-/* Helper functions */
-
-static int saa7191_s_routing(struct v4l2_subdev *sd,
- u32 input, u32 output, u32 config)
-{
- struct saa7191 *decoder = to_saa7191(sd);
- u8 luma = saa7191_read_reg(sd, SAA7191_REG_LUMA);
- u8 iock = saa7191_read_reg(sd, SAA7191_REG_IOCK);
- int err;
-
- switch (input) {
- case SAA7191_INPUT_COMPOSITE: /* Set Composite input */
- iock &= ~(SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW1
- | SAA7191_IOCK_GPSW2);
- /* Chrominance trap active */
- luma &= ~SAA7191_LUMA_BYPS;
- break;
- case SAA7191_INPUT_SVIDEO: /* Set S-Video input */
- iock |= SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW2;
- /* Chrominance trap bypassed */
- luma |= SAA7191_LUMA_BYPS;
- break;
- default:
- return -EINVAL;
- }
-
- err = saa7191_write_reg(sd, SAA7191_REG_LUMA, luma);
- if (err)
- return -EIO;
- err = saa7191_write_reg(sd, SAA7191_REG_IOCK, iock);
- if (err)
- return -EIO;
-
- decoder->input = input;
-
- return 0;
-}
-
-static int saa7191_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
-{
- struct saa7191 *decoder = to_saa7191(sd);
- u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC);
- u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3);
- u8 chcv = saa7191_read_reg(sd, SAA7191_REG_CHCV);
- int err;
-
- if (norm & V4L2_STD_PAL) {
- stdc &= ~SAA7191_STDC_SECS;
- ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL);
- chcv = SAA7191_CHCV_PAL;
- } else if (norm & V4L2_STD_NTSC) {
- stdc &= ~SAA7191_STDC_SECS;
- ctl3 &= ~SAA7191_CTL3_AUFD;
- ctl3 |= SAA7191_CTL3_FSEL;
- chcv = SAA7191_CHCV_NTSC;
- } else if (norm & V4L2_STD_SECAM) {
- stdc |= SAA7191_STDC_SECS;
- ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL);
- chcv = SAA7191_CHCV_PAL;
- } else {
- return -EINVAL;
- }
-
- err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
- if (err)
- return -EIO;
- err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc);
- if (err)
- return -EIO;
- err = saa7191_write_reg(sd, SAA7191_REG_CHCV, chcv);
- if (err)
- return -EIO;
-
- decoder->norm = norm;
-
- dprintk("ctl3: %02x stdc: %02x chcv: %02x\n", ctl3,
- stdc, chcv);
- dprintk("norm: %llx\n", norm);
-
- return 0;
-}
-
-static int saa7191_wait_for_signal(struct v4l2_subdev *sd, u8 *status)
-{
- int i = 0;
-
- dprintk("Checking for signal...\n");
-
- for (i = 0; i < SAA7191_SYNC_COUNT; i++) {
- if (saa7191_read_status(sd, status))
- return -EIO;
-
- if (((*status) & SAA7191_STATUS_HLCK) == 0) {
- dprintk("Signal found\n");
- return 0;
- }
-
- msleep(SAA7191_SYNC_DELAY);
- }
-
- dprintk("No signal\n");
-
- return -EBUSY;
-}
-
-static int saa7191_querystd(struct v4l2_subdev *sd, v4l2_std_id *norm)
-{
- struct saa7191 *decoder = to_saa7191(sd);
- u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC);
- u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3);
- u8 status;
- v4l2_std_id old_norm = decoder->norm;
- int err = 0;
-
- dprintk("SAA7191 extended signal auto-detection...\n");
-
- *norm &= V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM;
- stdc &= ~SAA7191_STDC_SECS;
- ctl3 &= ~(SAA7191_CTL3_FSEL);
-
- err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc);
- if (err) {
- err = -EIO;
- goto out;
- }
- err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
- if (err) {
- err = -EIO;
- goto out;
- }
-
- ctl3 |= SAA7191_CTL3_AUFD;
- err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
- if (err) {
- err = -EIO;
- goto out;
- }
-
- msleep(SAA7191_SYNC_DELAY);
-
- err = saa7191_wait_for_signal(sd, &status);
- if (err)
- goto out;
-
- if (status & SAA7191_STATUS_FIDT) {
- /* 60Hz signal -> NTSC */
- dprintk("60Hz signal: NTSC\n");
- *norm &= V4L2_STD_NTSC;
- return 0;
- }
-
- /* 50Hz signal */
- dprintk("50Hz signal: Trying PAL...\n");
-
- /* try PAL first */
- err = saa7191_s_std(sd, V4L2_STD_PAL);
- if (err)
- goto out;
-
- msleep(SAA7191_SYNC_DELAY);
-
- err = saa7191_wait_for_signal(sd, &status);
- if (err)
- goto out;
-
- /* not 50Hz ? */
- if (status & SAA7191_STATUS_FIDT) {
- dprintk("No 50Hz signal\n");
- saa7191_s_std(sd, old_norm);
- *norm = V4L2_STD_UNKNOWN;
- return 0;
- }
-
- if (status & SAA7191_STATUS_CODE) {
- dprintk("PAL\n");
- *norm &= V4L2_STD_PAL;
- return saa7191_s_std(sd, old_norm);
- }
-
- dprintk("No color detected with PAL - Trying SECAM...\n");
-
- /* no color detected ? -> try SECAM */
- err = saa7191_s_std(sd, V4L2_STD_SECAM);
- if (err)
- goto out;
-
- msleep(SAA7191_SYNC_DELAY);
-
- err = saa7191_wait_for_signal(sd, &status);
- if (err)
- goto out;
-
- /* not 50Hz ? */
- if (status & SAA7191_STATUS_FIDT) {
- dprintk("No 50Hz signal\n");
- *norm = V4L2_STD_UNKNOWN;
- goto out;
- }
-
- if (status & SAA7191_STATUS_CODE) {
- /* Color detected -> SECAM */
- dprintk("SECAM\n");
- *norm &= V4L2_STD_SECAM;
- return saa7191_s_std(sd, old_norm);
- }
-
- dprintk("No color detected with SECAM - Going back to PAL.\n");
- *norm = V4L2_STD_UNKNOWN;
-
-out:
- return saa7191_s_std(sd, old_norm);
-}
-
-static int saa7191_autodetect_norm(struct v4l2_subdev *sd)
-{
- u8 status;
-
- dprintk("SAA7191 signal auto-detection...\n");
-
- dprintk("Reading status...\n");
-
- if (saa7191_read_status(sd, &status))
- return -EIO;
-
- dprintk("Checking for signal...\n");
-
- /* no signal ? */
- if (status & SAA7191_STATUS_HLCK) {
- dprintk("No signal\n");
- return -EBUSY;
- }
-
- dprintk("Signal found\n");
-
- if (status & SAA7191_STATUS_FIDT) {
- /* 60hz signal -> NTSC */
- dprintk("NTSC\n");
- return saa7191_s_std(sd, V4L2_STD_NTSC);
- } else {
- /* 50hz signal -> PAL */
- dprintk("PAL\n");
- return saa7191_s_std(sd, V4L2_STD_PAL);
- }
-}
-
-static int saa7191_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- u8 reg;
- int ret = 0;
-
- switch (ctrl->id) {
- case SAA7191_CONTROL_BANDPASS:
- case SAA7191_CONTROL_BANDPASS_WEIGHT:
- case SAA7191_CONTROL_CORING:
- reg = saa7191_read_reg(sd, SAA7191_REG_LUMA);
- switch (ctrl->id) {
- case SAA7191_CONTROL_BANDPASS:
- ctrl->value = ((s32)reg & SAA7191_LUMA_BPSS_MASK)
- >> SAA7191_LUMA_BPSS_SHIFT;
- break;
- case SAA7191_CONTROL_BANDPASS_WEIGHT:
- ctrl->value = ((s32)reg & SAA7191_LUMA_APER_MASK)
- >> SAA7191_LUMA_APER_SHIFT;
- break;
- case SAA7191_CONTROL_CORING:
- ctrl->value = ((s32)reg & SAA7191_LUMA_CORI_MASK)
- >> SAA7191_LUMA_CORI_SHIFT;
- break;
- }
- break;
- case SAA7191_CONTROL_FORCE_COLOUR:
- case SAA7191_CONTROL_CHROMA_GAIN:
- reg = saa7191_read_reg(sd, SAA7191_REG_GAIN);
- if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR)
- ctrl->value = ((s32)reg & SAA7191_GAIN_COLO) ? 1 : 0;
- else
- ctrl->value = ((s32)reg & SAA7191_GAIN_LFIS_MASK)
- >> SAA7191_GAIN_LFIS_SHIFT;
- break;
- case V4L2_CID_HUE:
- reg = saa7191_read_reg(sd, SAA7191_REG_HUEC);
- if (reg < 0x80)
- reg += 0x80;
- else
- reg -= 0x80;
- ctrl->value = (s32)reg;
- break;
- case SAA7191_CONTROL_VTRC:
- reg = saa7191_read_reg(sd, SAA7191_REG_STDC);
- ctrl->value = ((s32)reg & SAA7191_STDC_VTRC) ? 1 : 0;
- break;
- case SAA7191_CONTROL_LUMA_DELAY:
- reg = saa7191_read_reg(sd, SAA7191_REG_CTL3);
- ctrl->value = ((s32)reg & SAA7191_CTL3_YDEL_MASK)
- >> SAA7191_CTL3_YDEL_SHIFT;
- if (ctrl->value >= 4)
- ctrl->value -= 8;
- break;
- case SAA7191_CONTROL_VNR:
- reg = saa7191_read_reg(sd, SAA7191_REG_CTL4);
- ctrl->value = ((s32)reg & SAA7191_CTL4_VNOI_MASK)
- >> SAA7191_CTL4_VNOI_SHIFT;
- break;
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-static int saa7191_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- u8 reg;
- int ret = 0;
-
- switch (ctrl->id) {
- case SAA7191_CONTROL_BANDPASS:
- case SAA7191_CONTROL_BANDPASS_WEIGHT:
- case SAA7191_CONTROL_CORING:
- reg = saa7191_read_reg(sd, SAA7191_REG_LUMA);
- switch (ctrl->id) {
- case SAA7191_CONTROL_BANDPASS:
- reg &= ~SAA7191_LUMA_BPSS_MASK;
- reg |= (ctrl->value << SAA7191_LUMA_BPSS_SHIFT)
- & SAA7191_LUMA_BPSS_MASK;
- break;
- case SAA7191_CONTROL_BANDPASS_WEIGHT:
- reg &= ~SAA7191_LUMA_APER_MASK;
- reg |= (ctrl->value << SAA7191_LUMA_APER_SHIFT)
- & SAA7191_LUMA_APER_MASK;
- break;
- case SAA7191_CONTROL_CORING:
- reg &= ~SAA7191_LUMA_CORI_MASK;
- reg |= (ctrl->value << SAA7191_LUMA_CORI_SHIFT)
- & SAA7191_LUMA_CORI_MASK;
- break;
- }
- ret = saa7191_write_reg(sd, SAA7191_REG_LUMA, reg);
- break;
- case SAA7191_CONTROL_FORCE_COLOUR:
- case SAA7191_CONTROL_CHROMA_GAIN:
- reg = saa7191_read_reg(sd, SAA7191_REG_GAIN);
- if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR) {
- if (ctrl->value)
- reg |= SAA7191_GAIN_COLO;
- else
- reg &= ~SAA7191_GAIN_COLO;
- } else {
- reg &= ~SAA7191_GAIN_LFIS_MASK;
- reg |= (ctrl->value << SAA7191_GAIN_LFIS_SHIFT)
- & SAA7191_GAIN_LFIS_MASK;
- }
- ret = saa7191_write_reg(sd, SAA7191_REG_GAIN, reg);
- break;
- case V4L2_CID_HUE:
- reg = ctrl->value & 0xff;
- if (reg < 0x80)
- reg += 0x80;
- else
- reg -= 0x80;
- ret = saa7191_write_reg(sd, SAA7191_REG_HUEC, reg);
- break;
- case SAA7191_CONTROL_VTRC:
- reg = saa7191_read_reg(sd, SAA7191_REG_STDC);
- if (ctrl->value)
- reg |= SAA7191_STDC_VTRC;
- else
- reg &= ~SAA7191_STDC_VTRC;
- ret = saa7191_write_reg(sd, SAA7191_REG_STDC, reg);
- break;
- case SAA7191_CONTROL_LUMA_DELAY: {
- s32 value = ctrl->value;
- if (value < 0)
- value += 8;
- reg = saa7191_read_reg(sd, SAA7191_REG_CTL3);
- reg &= ~SAA7191_CTL3_YDEL_MASK;
- reg |= (value << SAA7191_CTL3_YDEL_SHIFT)
- & SAA7191_CTL3_YDEL_MASK;
- ret = saa7191_write_reg(sd, SAA7191_REG_CTL3, reg);
- break;
- }
- case SAA7191_CONTROL_VNR:
- reg = saa7191_read_reg(sd, SAA7191_REG_CTL4);
- reg &= ~SAA7191_CTL4_VNOI_MASK;
- reg |= (ctrl->value << SAA7191_CTL4_VNOI_SHIFT)
- & SAA7191_CTL4_VNOI_MASK;
- ret = saa7191_write_reg(sd, SAA7191_REG_CTL4, reg);
- break;
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-/* I2C-interface */
-
-static int saa7191_g_input_status(struct v4l2_subdev *sd, u32 *status)
-{
- u8 status_reg;
- int res = V4L2_IN_ST_NO_SIGNAL;
-
- if (saa7191_read_status(sd, &status_reg))
- return -EIO;
- if ((status_reg & SAA7191_STATUS_HLCK) == 0)
- res = 0;
- if (!(status_reg & SAA7191_STATUS_CODE))
- res |= V4L2_IN_ST_NO_COLOR;
- *status = res;
- return 0;
-}
-
-
-/* ----------------------------------------------------------------------- */
-
-static const struct v4l2_subdev_core_ops saa7191_core_ops = {
- .g_ctrl = saa7191_g_ctrl,
- .s_ctrl = saa7191_s_ctrl,
-};
-
-static const struct v4l2_subdev_video_ops saa7191_video_ops = {
- .s_std = saa7191_s_std,
- .s_routing = saa7191_s_routing,
- .querystd = saa7191_querystd,
- .g_input_status = saa7191_g_input_status,
-};
-
-static const struct v4l2_subdev_ops saa7191_ops = {
- .core = &saa7191_core_ops,
- .video = &saa7191_video_ops,
-};
-
-static int saa7191_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- int err = 0;
- struct saa7191 *decoder;
- struct v4l2_subdev *sd;
-
- v4l_info(client, "chip found @ 0x%x (%s)\n",
- client->addr << 1, client->adapter->name);
-
- decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL);
- if (!decoder)
- return -ENOMEM;
-
- sd = &decoder->sd;
- v4l2_i2c_subdev_init(sd, client, &saa7191_ops);
-
- err = saa7191_write_block(sd, sizeof(initseq), initseq);
- if (err) {
- printk(KERN_ERR "SAA7191 initialization failed\n");
- return err;
- }
-
- printk(KERN_INFO "SAA7191 initialized\n");
-
- decoder->input = SAA7191_INPUT_COMPOSITE;
- decoder->norm = V4L2_STD_PAL;
-
- err = saa7191_autodetect_norm(sd);
- if (err && (err != -EBUSY))
- printk(KERN_ERR "SAA7191: Signal auto-detection failed\n");
-
- return 0;
-}
-
-static int saa7191_remove(struct i2c_client *client)
-{
- struct v4l2_subdev *sd = i2c_get_clientdata(client);
-
- v4l2_device_unregister_subdev(sd);
- return 0;
-}
-
-static const struct i2c_device_id saa7191_id[] = {
- { "saa7191", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, saa7191_id);
-
-static struct i2c_driver saa7191_driver = {
- .driver = {
- .owner = THIS_MODULE,
- .name = "saa7191",
- },
- .probe = saa7191_probe,
- .remove = saa7191_remove,
- .id_table = saa7191_id,
-};
-
-module_i2c_driver(saa7191_driver);
+++ /dev/null
-/*
- * saa7191.h - Philips SAA7191 video decoder driver
- *
- * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
- * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
- *
- * 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 _SAA7191_H_
-#define _SAA7191_H_
-
-/* Philips SAA7191 DMSD I2C bus address */
-#define SAA7191_ADDR 0x8a
-
-/* Register subaddresses. */
-#define SAA7191_REG_IDEL 0x00
-#define SAA7191_REG_HSYB 0x01
-#define SAA7191_REG_HSYS 0x02
-#define SAA7191_REG_HCLB 0x03
-#define SAA7191_REG_HCLS 0x04
-#define SAA7191_REG_HPHI 0x05
-#define SAA7191_REG_LUMA 0x06
-#define SAA7191_REG_HUEC 0x07
-#define SAA7191_REG_CKTQ 0x08 /* bits 3-7 */
-#define SAA7191_REG_CKTS 0x09 /* bits 3-7 */
-#define SAA7191_REG_PLSE 0x0a
-#define SAA7191_REG_SESE 0x0b
-#define SAA7191_REG_GAIN 0x0c
-#define SAA7191_REG_STDC 0x0d
-#define SAA7191_REG_IOCK 0x0e
-#define SAA7191_REG_CTL3 0x0f
-#define SAA7191_REG_CTL4 0x10
-#define SAA7191_REG_CHCV 0x11
-#define SAA7191_REG_HS6B 0x14
-#define SAA7191_REG_HS6S 0x15
-#define SAA7191_REG_HC6B 0x16
-#define SAA7191_REG_HC6S 0x17
-#define SAA7191_REG_HP6I 0x18
-#define SAA7191_REG_STATUS 0xff /* not really a subaddress */
-
-/* Status Register definitions */
-#define SAA7191_STATUS_CODE 0x01 /* color detected flag */
-#define SAA7191_STATUS_FIDT 0x20 /* signal type 50/60 Hz */
-#define SAA7191_STATUS_HLCK 0x40 /* PLL unlocked(1)/locked(0) */
-#define SAA7191_STATUS_STTC 0x80 /* tv/vtr time constant */
-
-/* Luminance Control Register definitions */
-/* input mode select bit:
- * 0=CVBS (chrominance trap active), 1=S-Video (trap bypassed) */
-#define SAA7191_LUMA_BYPS 0x80
-/* pre-filter (only when chrominance trap is active) */
-#define SAA7191_LUMA_PREF 0x40
-/* aperture bandpass to select different characteristics with maximums
- * (bits 4-5) */
-#define SAA7191_LUMA_BPSS_MASK 0x30
-#define SAA7191_LUMA_BPSS_SHIFT 4
-#define SAA7191_LUMA_BPSS_3 0x30
-#define SAA7191_LUMA_BPSS_2 0x20
-#define SAA7191_LUMA_BPSS_1 0x10
-#define SAA7191_LUMA_BPSS_0 0x00
-/* coring range for high frequency components according to 8-bit luminance
- * (bits 2-3)
- * 0=coring off, n= (+-)n LSB */
-#define SAA7191_LUMA_CORI_MASK 0x0c
-#define SAA7191_LUMA_CORI_SHIFT 2
-#define SAA7191_LUMA_CORI_3 0x0c
-#define SAA7191_LUMA_CORI_2 0x08
-#define SAA7191_LUMA_CORI_1 0x04
-#define SAA7191_LUMA_CORI_0 0x00
-/* aperture bandpass filter weights high frequency components of luminance
- * signal (bits 0-1)
- * 0=factor 0, 1=0.25, 2=0.5, 3=1 */
-#define SAA7191_LUMA_APER_MASK 0x03
-#define SAA7191_LUMA_APER_SHIFT 0
-#define SAA7191_LUMA_APER_3 0x03
-#define SAA7191_LUMA_APER_2 0x02
-#define SAA7191_LUMA_APER_1 0x01
-#define SAA7191_LUMA_APER_0 0x00
-
-/* Chrominance Gain Control Settings Register definitions */
-/* colour on: 0=automatic colour-killer enabled, 1=forced colour on */
-#define SAA7191_GAIN_COLO 0x80
-/* chrominance gain control (AGC filter)
- * 0=loop filter time constant slow, 1=medium, 2=fast, 3=actual gain */
-#define SAA7191_GAIN_LFIS_MASK 0x60
-#define SAA7191_GAIN_LFIS_SHIFT 5
-#define SAA7191_GAIN_LFIS_3 0x60
-#define SAA7191_GAIN_LFIS_2 0x40
-#define SAA7191_GAIN_LFIS_1 0x20
-#define SAA7191_GAIN_LFIS_0 0x00
-
-/* Standard/Mode Control Register definitions */
-/* tv/vtr mode bit: 0=TV mode (slow time constant),
- * 1=VTR mode (fast time constant) */
-#define SAA7191_STDC_VTRC 0x80
-/* SAA7191B-specific functions enable (RTCO, ODD and GPSW0 outputs)
- * 0=outputs set to high-impedance (circuit equals SAA7191), 1=enabled */
-#define SAA7191_STDC_NFEN 0x08
-/* HREF generation: 0=like SAA7191, 1=HREF is 8xLLC2 clocks earlier */
-#define SAA7191_STDC_HRMV 0x04
-/* general purpose switch 0
- * (not used with VINO afaik) */
-#define SAA7191_STDC_GPSW0 0x02
-/* SECAM mode bit: 0=other standards, 1=SECAM */
-#define SAA7191_STDC_SECS 0x01
-
-/* I/O and Clock Control Register definitions */
-/* horizontal clock PLL: 0=PLL closed,
- * 1=PLL circuit open and horizontal freq fixed */
-#define SAA7191_IOCK_HPLL 0x80
-/* colour-difference output enable (outputs UV0-UV7) */
-#define SAA7191_IOCK_OEDC 0x40
-/* H-sync output enable */
-#define SAA7191_IOCK_OEHS 0x20
-/* V-sync output enable */
-#define SAA7191_IOCK_OEVS 0x10
-/* luminance output enable (outputs Y0-Y7) */
-#define SAA7191_IOCK_OEDY 0x08
-/* S-VHS bit (chrominance from CVBS or from chrominance input):
- * 0=controlled by BYPS-bit, 1=from chrominance input */
-#define SAA7191_IOCK_CHRS 0x04
-/* general purpose switch 2
- * VINO-specific: 0=used with CVBS, 1=used with S-Video */
-#define SAA7191_IOCK_GPSW2 0x02
-/* general purpose switch 1 */
-/* VINO-specific: 0=always, 1=not used!*/
-#define SAA7191_IOCK_GPSW1 0x01
-
-/* Miscellaneous Control #1 Register definitions */
-/* automatic field detection (50/60Hz standard) */
-#define SAA7191_CTL3_AUFD 0x80
-/* field select: (if AUFD=0)
- * 0=50Hz (625 lines), 1=60Hz (525 lines) */
-#define SAA7191_CTL3_FSEL 0x40
-/* SECAM cross-colour reduction enable */
-#define SAA7191_CTL3_SXCR 0x20
-/* sync and clamping pulse enable (HCL and HSY outputs) */
-#define SAA7191_CTL3_SCEN 0x10
-/* output format: 0=4:1:1, 1=4:2:2 (4:2:2 for VINO) */
-#define SAA7191_CTL3_OFTS 0x08
-/* luminance delay compensation
- * 0=0*2/LLC, 1=+1*2/LLC, 2=+2*2/LLC, 3=+3*2/LLC,
- * 4=-4*2/LLC, 5=-3*2/LLC, 6=-2*2/LLC, 7=-1*2/LLC
- * step size = 2/LLC = 67.8ns for 50Hz, 81.5ns for 60Hz */
-#define SAA7191_CTL3_YDEL_MASK 0x07
-#define SAA7191_CTL3_YDEL_SHIFT 0
-#define SAA7191_CTL3_YDEL2 0x04
-#define SAA7191_CTL3_YDEL1 0x02
-#define SAA7191_CTL3_YDEL0 0x01
-
-/* Miscellaneous Control #2 Register definitions */
-/* select HREF position
- * 0=normal, HREF is matched to YUV output port,
- * 1=HREF is matched to CVBS input port */
-#define SAA7191_CTL4_HRFS 0x04
-/* vertical noise reduction
- * 0=normal, 1=searching window, 2=auto-deflection, 3=reduction bypassed */
-#define SAA7191_CTL4_VNOI_MASK 0x03
-#define SAA7191_CTL4_VNOI_SHIFT 0
-#define SAA7191_CTL4_VNOI_3 0x03
-#define SAA7191_CTL4_VNOI_2 0x02
-#define SAA7191_CTL4_VNOI_1 0x01
-#define SAA7191_CTL4_VNOI_0 0x00
-
-/* Chrominance Gain Control Register definitions
- * - for QAM-modulated input signals, effects output amplitude
- * (SECAM gain fixed)
- * (nominal values for UV CCIR level) */
-#define SAA7191_CHCV_NTSC 0x2c
-#define SAA7191_CHCV_PAL 0x59
-
-/* Driver interface definitions */
-#define SAA7191_INPUT_COMPOSITE 0
-#define SAA7191_INPUT_SVIDEO 1
-
-#define SAA7191_NORM_PAL 1
-#define SAA7191_NORM_NTSC 2
-#define SAA7191_NORM_SECAM 3
-
-struct saa7191_status {
- /* 0=no signal, 1=signal detected */
- int signal;
- /* 0=50hz (pal) signal, 1=60hz (ntsc) signal */
- int signal_60hz;
- /* 0=no color detected, 1=color detected */
- int color;
-
- /* current SAA7191_INPUT_ */
- int input;
- /* current SAA7191_NORM_ */
- int norm;
-};
-
-#define SAA7191_BANDPASS_MIN 0x00
-#define SAA7191_BANDPASS_MAX 0x03
-#define SAA7191_BANDPASS_DEFAULT 0x00
-
-#define SAA7191_BANDPASS_WEIGHT_MIN 0x00
-#define SAA7191_BANDPASS_WEIGHT_MAX 0x03
-#define SAA7191_BANDPASS_WEIGHT_DEFAULT 0x01
-
-#define SAA7191_CORING_MIN 0x00
-#define SAA7191_CORING_MAX 0x03
-#define SAA7191_CORING_DEFAULT 0x00
-
-#define SAA7191_HUE_MIN 0x00
-#define SAA7191_HUE_MAX 0xff
-#define SAA7191_HUE_DEFAULT 0x80
-
-#define SAA7191_VTRC_MIN 0x00
-#define SAA7191_VTRC_MAX 0x01
-#define SAA7191_VTRC_DEFAULT 0x00
-
-#define SAA7191_FORCE_COLOUR_MIN 0x00
-#define SAA7191_FORCE_COLOUR_MAX 0x01
-#define SAA7191_FORCE_COLOUR_DEFAULT 0x00
-
-#define SAA7191_CHROMA_GAIN_MIN 0x00
-#define SAA7191_CHROMA_GAIN_MAX 0x03
-#define SAA7191_CHROMA_GAIN_DEFAULT 0x00
-
-#define SAA7191_LUMA_DELAY_MIN -0x04
-#define SAA7191_LUMA_DELAY_MAX 0x03
-#define SAA7191_LUMA_DELAY_DEFAULT 0x01
-
-#define SAA7191_VNR_MIN 0x00
-#define SAA7191_VNR_MAX 0x03
-#define SAA7191_VNR_DEFAULT 0x00
-
-#define SAA7191_CONTROL_BANDPASS (V4L2_CID_PRIVATE_BASE + 0)
-#define SAA7191_CONTROL_BANDPASS_WEIGHT (V4L2_CID_PRIVATE_BASE + 1)
-#define SAA7191_CONTROL_CORING (V4L2_CID_PRIVATE_BASE + 2)
-#define SAA7191_CONTROL_FORCE_COLOUR (V4L2_CID_PRIVATE_BASE + 3)
-#define SAA7191_CONTROL_CHROMA_GAIN (V4L2_CID_PRIVATE_BASE + 4)
-#define SAA7191_CONTROL_VTRC (V4L2_CID_PRIVATE_BASE + 5)
-#define SAA7191_CONTROL_LUMA_DELAY (V4L2_CID_PRIVATE_BASE + 6)
-#define SAA7191_CONTROL_VNR (V4L2_CID_PRIVATE_BASE + 7)
-
-#define DECODER_SAA7191_GET_STATUS _IOR('d', 195, struct saa7191_status)
-#define DECODER_SAA7191_SET_NORM _IOW('d', 196, int)
-
-#endif
---help---
Add support for the Video In peripherial of the timberdale FPGA.
-config VIDEO_VINO
- tristate "SGI Vino Video For Linux"
- depends on I2C && SGI_IP22 && VIDEO_V4L2
- select VIDEO_SAA7191 if MEDIA_SUBDRV_AUTOSELECT
- help
- Say Y here to build in support for the Vino video input system found
- on SGI Indy machines.
-
config VIDEO_M32R_AR
tristate "AR devices"
depends on VIDEO_V4L2
# Makefile for the video capture/playback device drivers.
#
-obj-$(CONFIG_VIDEO_VINO) += indycam.o
-obj-$(CONFIG_VIDEO_VINO) += vino.o
-
obj-$(CONFIG_VIDEO_TIMBERDALE) += timblogiw.o
obj-$(CONFIG_VIDEO_M32R_AR_M64278) += arv.o
+++ /dev/null
-/*
- * indycam.c - Silicon Graphics IndyCam digital camera driver
- *
- * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
- * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
- *
- * 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/errno.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-
-/* IndyCam decodes stream of photons into digital image representation ;-) */
-#include <linux/videodev2.h>
-#include <linux/i2c.h>
-#include <media/v4l2-device.h>
-
-#include "indycam.h"
-
-#define INDYCAM_MODULE_VERSION "0.0.5"
-
-MODULE_DESCRIPTION("SGI IndyCam driver");
-MODULE_VERSION(INDYCAM_MODULE_VERSION);
-MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
-MODULE_LICENSE("GPL");
-
-
-// #define INDYCAM_DEBUG
-
-#ifdef INDYCAM_DEBUG
-#define dprintk(x...) printk("IndyCam: " x);
-#define indycam_regdump(client) indycam_regdump_debug(client)
-#else
-#define dprintk(x...)
-#define indycam_regdump(client)
-#endif
-
-struct indycam {
- struct v4l2_subdev sd;
- u8 version;
-};
-
-static inline struct indycam *to_indycam(struct v4l2_subdev *sd)
-{
- return container_of(sd, struct indycam, sd);
-}
-
-static const u8 initseq[] = {
- INDYCAM_CONTROL_AGCENA, /* INDYCAM_CONTROL */
- INDYCAM_SHUTTER_60, /* INDYCAM_SHUTTER */
- INDYCAM_GAIN_DEFAULT, /* INDYCAM_GAIN */
- 0x00, /* INDYCAM_BRIGHTNESS (read-only) */
- INDYCAM_RED_BALANCE_DEFAULT, /* INDYCAM_RED_BALANCE */
- INDYCAM_BLUE_BALANCE_DEFAULT, /* INDYCAM_BLUE_BALANCE */
- INDYCAM_RED_SATURATION_DEFAULT, /* INDYCAM_RED_SATURATION */
- INDYCAM_BLUE_SATURATION_DEFAULT,/* INDYCAM_BLUE_SATURATION */
-};
-
-/* IndyCam register handling */
-
-static int indycam_read_reg(struct v4l2_subdev *sd, u8 reg, u8 *value)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- int ret;
-
- if (reg == INDYCAM_REG_RESET) {
- dprintk("indycam_read_reg(): "
- "skipping write-only register %d\n", reg);
- *value = 0;
- return 0;
- }
-
- ret = i2c_smbus_read_byte_data(client, reg);
-
- if (ret < 0) {
- printk(KERN_ERR "IndyCam: indycam_read_reg(): read failed, "
- "register = 0x%02x\n", reg);
- return ret;
- }
-
- *value = (u8)ret;
-
- return 0;
-}
-
-static int indycam_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- int err;
-
- if (reg == INDYCAM_REG_BRIGHTNESS || reg == INDYCAM_REG_VERSION) {
- dprintk("indycam_write_reg(): "
- "skipping read-only register %d\n", reg);
- return 0;
- }
-
- dprintk("Writing Reg %d = 0x%02x\n", reg, value);
- err = i2c_smbus_write_byte_data(client, reg, value);
-
- if (err) {
- printk(KERN_ERR "IndyCam: indycam_write_reg(): write failed, "
- "register = 0x%02x, value = 0x%02x\n", reg, value);
- }
- return err;
-}
-
-static int indycam_write_block(struct v4l2_subdev *sd, u8 reg,
- u8 length, u8 *data)
-{
- int i, err;
-
- for (i = 0; i < length; i++) {
- err = indycam_write_reg(sd, reg + i, data[i]);
- if (err)
- return err;
- }
-
- return 0;
-}
-
-/* Helper functions */
-
-#ifdef INDYCAM_DEBUG
-static void indycam_regdump_debug(struct v4l2_subdev *sd)
-{
- int i;
- u8 val;
-
- for (i = 0; i < 9; i++) {
- indycam_read_reg(sd, i, &val);
- dprintk("Reg %d = 0x%02x\n", i, val);
- }
-}
-#endif
-
-static int indycam_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- struct indycam *camera = to_indycam(sd);
- u8 reg;
- int ret = 0;
-
- switch (ctrl->id) {
- case V4L2_CID_AUTOGAIN:
- case V4L2_CID_AUTO_WHITE_BALANCE:
- ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®);
- if (ret)
- return -EIO;
- if (ctrl->id == V4L2_CID_AUTOGAIN)
- ctrl->value = (reg & INDYCAM_CONTROL_AGCENA)
- ? 1 : 0;
- else
- ctrl->value = (reg & INDYCAM_CONTROL_AWBCTL)
- ? 1 : 0;
- break;
- case V4L2_CID_EXPOSURE:
- ret = indycam_read_reg(sd, INDYCAM_REG_SHUTTER, ®);
- if (ret)
- return -EIO;
- ctrl->value = ((s32)reg == 0x00) ? 0xff : ((s32)reg - 1);
- break;
- case V4L2_CID_GAIN:
- ret = indycam_read_reg(sd, INDYCAM_REG_GAIN, ®);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- break;
- case V4L2_CID_RED_BALANCE:
- ret = indycam_read_reg(sd, INDYCAM_REG_RED_BALANCE, ®);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- break;
- case V4L2_CID_BLUE_BALANCE:
- ret = indycam_read_reg(sd, INDYCAM_REG_BLUE_BALANCE, ®);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- break;
- case INDYCAM_CONTROL_RED_SATURATION:
- ret = indycam_read_reg(sd,
- INDYCAM_REG_RED_SATURATION, ®);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- break;
- case INDYCAM_CONTROL_BLUE_SATURATION:
- ret = indycam_read_reg(sd,
- INDYCAM_REG_BLUE_SATURATION, ®);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- break;
- case V4L2_CID_GAMMA:
- if (camera->version == CAMERA_VERSION_MOOSE) {
- ret = indycam_read_reg(sd,
- INDYCAM_REG_GAMMA, ®);
- if (ret)
- return -EIO;
- ctrl->value = (s32)reg;
- } else {
- ctrl->value = INDYCAM_GAMMA_DEFAULT;
- }
- break;
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-static int indycam_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
-{
- struct indycam *camera = to_indycam(sd);
- u8 reg;
- int ret = 0;
-
- switch (ctrl->id) {
- case V4L2_CID_AUTOGAIN:
- case V4L2_CID_AUTO_WHITE_BALANCE:
- ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®);
- if (ret)
- break;
-
- if (ctrl->id == V4L2_CID_AUTOGAIN) {
- if (ctrl->value)
- reg |= INDYCAM_CONTROL_AGCENA;
- else
- reg &= ~INDYCAM_CONTROL_AGCENA;
- } else {
- if (ctrl->value)
- reg |= INDYCAM_CONTROL_AWBCTL;
- else
- reg &= ~INDYCAM_CONTROL_AWBCTL;
- }
-
- ret = indycam_write_reg(sd, INDYCAM_REG_CONTROL, reg);
- break;
- case V4L2_CID_EXPOSURE:
- reg = (ctrl->value == 0xff) ? 0x00 : (ctrl->value + 1);
- ret = indycam_write_reg(sd, INDYCAM_REG_SHUTTER, reg);
- break;
- case V4L2_CID_GAIN:
- ret = indycam_write_reg(sd, INDYCAM_REG_GAIN, ctrl->value);
- break;
- case V4L2_CID_RED_BALANCE:
- ret = indycam_write_reg(sd, INDYCAM_REG_RED_BALANCE,
- ctrl->value);
- break;
- case V4L2_CID_BLUE_BALANCE:
- ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_BALANCE,
- ctrl->value);
- break;
- case INDYCAM_CONTROL_RED_SATURATION:
- ret = indycam_write_reg(sd, INDYCAM_REG_RED_SATURATION,
- ctrl->value);
- break;
- case INDYCAM_CONTROL_BLUE_SATURATION:
- ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_SATURATION,
- ctrl->value);
- break;
- case V4L2_CID_GAMMA:
- if (camera->version == CAMERA_VERSION_MOOSE) {
- ret = indycam_write_reg(sd, INDYCAM_REG_GAMMA,
- ctrl->value);
- }
- break;
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-/* I2C-interface */
-
-/* ----------------------------------------------------------------------- */
-
-static const struct v4l2_subdev_core_ops indycam_core_ops = {
- .g_ctrl = indycam_g_ctrl,
- .s_ctrl = indycam_s_ctrl,
-};
-
-static const struct v4l2_subdev_ops indycam_ops = {
- .core = &indycam_core_ops,
-};
-
-static int indycam_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- int err = 0;
- struct indycam *camera;
- struct v4l2_subdev *sd;
-
- v4l_info(client, "chip found @ 0x%x (%s)\n",
- client->addr << 1, client->adapter->name);
-
- camera = kzalloc(sizeof(struct indycam), GFP_KERNEL);
- if (!camera)
- return -ENOMEM;
-
- sd = &camera->sd;
- v4l2_i2c_subdev_init(sd, client, &indycam_ops);
-
- camera->version = i2c_smbus_read_byte_data(client,
- INDYCAM_REG_VERSION);
- if (camera->version != CAMERA_VERSION_INDY &&
- camera->version != CAMERA_VERSION_MOOSE) {
- kfree(camera);
- return -ENODEV;
- }
-
- printk(KERN_INFO "IndyCam v%d.%d detected\n",
- INDYCAM_VERSION_MAJOR(camera->version),
- INDYCAM_VERSION_MINOR(camera->version));
-
- indycam_regdump(sd);
-
- // initialize
- err = indycam_write_block(sd, 0, sizeof(initseq), (u8 *)&initseq);
- if (err) {
- printk(KERN_ERR "IndyCam initialization failed\n");
- kfree(camera);
- return -EIO;
- }
-
- indycam_regdump(sd);
-
- // white balance
- err = indycam_write_reg(sd, INDYCAM_REG_CONTROL,
- INDYCAM_CONTROL_AGCENA | INDYCAM_CONTROL_AWBCTL);
- if (err) {
- printk(KERN_ERR "IndyCam: White balancing camera failed\n");
- kfree(camera);
- return -EIO;
- }
-
- indycam_regdump(sd);
-
- printk(KERN_INFO "IndyCam initialized\n");
-
- return 0;
-}
-
-static int indycam_remove(struct i2c_client *client)
-{
- struct v4l2_subdev *sd = i2c_get_clientdata(client);
-
- v4l2_device_unregister_subdev(sd);
- kfree(to_indycam(sd));
- return 0;
-}
-
-static const struct i2c_device_id indycam_id[] = {
- { "indycam", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, indycam_id);
-
-static struct i2c_driver indycam_driver = {
- .driver = {
- .owner = THIS_MODULE,
- .name = "indycam",
- },
- .probe = indycam_probe,
- .remove = indycam_remove,
- .id_table = indycam_id,
-};
-
-module_i2c_driver(indycam_driver);
+++ /dev/null
-/*
- * indycam.h - Silicon Graphics IndyCam digital camera driver
- *
- * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
- * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
- *
- * 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 _INDYCAM_H_
-#define _INDYCAM_H_
-
-/* I2C address for the Guinness Camera */
-#define INDYCAM_ADDR 0x56
-
-/* Camera version */
-#define CAMERA_VERSION_INDY 0x10 /* v1.0 */
-#define CAMERA_VERSION_MOOSE 0x12 /* v1.2 */
-#define INDYCAM_VERSION_MAJOR(x) (((x) & 0xf0) >> 4)
-#define INDYCAM_VERSION_MINOR(x) ((x) & 0x0f)
-
-/* Register bus addresses */
-#define INDYCAM_REG_CONTROL 0x00
-#define INDYCAM_REG_SHUTTER 0x01
-#define INDYCAM_REG_GAIN 0x02
-#define INDYCAM_REG_BRIGHTNESS 0x03 /* read-only */
-#define INDYCAM_REG_RED_BALANCE 0x04
-#define INDYCAM_REG_BLUE_BALANCE 0x05
-#define INDYCAM_REG_RED_SATURATION 0x06
-#define INDYCAM_REG_BLUE_SATURATION 0x07
-#define INDYCAM_REG_GAMMA 0x08
-#define INDYCAM_REG_VERSION 0x0e /* read-only */
-#define INDYCAM_REG_RESET 0x0f /* write-only */
-
-#define INDYCAM_REG_LED 0x46
-#define INDYCAM_REG_ORIENTATION 0x47
-#define INDYCAM_REG_BUTTON 0x48
-
-/* Field definitions of registers */
-#define INDYCAM_CONTROL_AGCENA (1<<0) /* automatic gain control */
-#define INDYCAM_CONTROL_AWBCTL (1<<1) /* automatic white balance */
- /* 2-3 are reserved */
-#define INDYCAM_CONTROL_EVNFLD (1<<4) /* read-only */
-
-#define INDYCAM_SHUTTER_10000 0x02 /* 1/10000 second */
-#define INDYCAM_SHUTTER_4000 0x04 /* 1/4000 second */
-#define INDYCAM_SHUTTER_2000 0x08 /* 1/2000 second */
-#define INDYCAM_SHUTTER_1000 0x10 /* 1/1000 second */
-#define INDYCAM_SHUTTER_500 0x20 /* 1/500 second */
-#define INDYCAM_SHUTTER_250 0x3f /* 1/250 second */
-#define INDYCAM_SHUTTER_125 0x7e /* 1/125 second */
-#define INDYCAM_SHUTTER_100 0x9e /* 1/100 second */
-#define INDYCAM_SHUTTER_60 0x00 /* 1/60 second */
-
-#define INDYCAM_LED_ACTIVE 0x10
-#define INDYCAM_LED_INACTIVE 0x30
-#define INDYCAM_ORIENTATION_BOTTOM_TO_TOP 0x40
-#define INDYCAM_BUTTON_RELEASED 0x10
-
-/* Values for controls */
-#define INDYCAM_SHUTTER_MIN 0x00
-#define INDYCAM_SHUTTER_MAX 0xff
-#define INDYCAM_GAIN_MIN 0x00
-#define INDYCAM_GAIN_MAX 0xff
-#define INDYCAM_RED_BALANCE_MIN 0x00
-#define INDYCAM_RED_BALANCE_MAX 0xff
-#define INDYCAM_BLUE_BALANCE_MIN 0x00
-#define INDYCAM_BLUE_BALANCE_MAX 0xff
-#define INDYCAM_RED_SATURATION_MIN 0x00
-#define INDYCAM_RED_SATURATION_MAX 0xff
-#define INDYCAM_BLUE_SATURATION_MIN 0x00
-#define INDYCAM_BLUE_SATURATION_MAX 0xff
-#define INDYCAM_GAMMA_MIN 0x00
-#define INDYCAM_GAMMA_MAX 0xff
-
-#define INDYCAM_AGC_DEFAULT 1
-#define INDYCAM_AWB_DEFAULT 0
-#define INDYCAM_SHUTTER_DEFAULT 0xff
-#define INDYCAM_GAIN_DEFAULT 0x80
-#define INDYCAM_RED_BALANCE_DEFAULT 0x18
-#define INDYCAM_BLUE_BALANCE_DEFAULT 0xa4
-#define INDYCAM_RED_SATURATION_DEFAULT 0x80
-#define INDYCAM_BLUE_SATURATION_DEFAULT 0xc0
-#define INDYCAM_GAMMA_DEFAULT 0x80
-
-/* Driver interface definitions */
-
-#define INDYCAM_CONTROL_RED_SATURATION (V4L2_CID_PRIVATE_BASE + 0)
-#define INDYCAM_CONTROL_BLUE_SATURATION (V4L2_CID_PRIVATE_BASE + 1)
-
-#endif
+++ /dev/null
-/*
- * Driver for the VINO (Video In No Out) system found in SGI Indys.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License version 2 as published by the Free Software Foundation.
- *
- * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
- *
- * Based on the previous version of the driver for 2.4 kernels by:
- * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
- *
- * v4l2_device/v4l2_subdev conversion by:
- * Copyright (C) 2009 Hans Verkuil <hverkuil@xs4all.nl>
- *
- * Note: this conversion is untested! Please contact the linux-media
- * mailinglist if you can test this, together with the test results.
- */
-
-/*
- * TODO:
- * - remove "mark pages reserved-hacks" from memory allocation code
- * and implement fault()
- * - check decimation, calculating and reporting image size when
- * using decimation
- * - implement read(), user mode buffers and overlay (?)
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/time.h>
-#include <linux/kmod.h>
-
-#include <linux/i2c.h>
-
-#include <linux/videodev2.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ioctl.h>
-#include <linux/mutex.h>
-
-#include <asm/paccess.h>
-#include <asm/io.h>
-#include <asm/sgi/ip22.h>
-#include <asm/sgi/mc.h>
-
-#include "vino.h"
-#include "saa7191.h"
-#include "indycam.h"
-
-/* Uncomment the following line to get lots and lots of (mostly useless)
- * debug info.
- * Note that the debug output also slows down the driver significantly */
-// #define VINO_DEBUG
-// #define VINO_DEBUG_INT
-
-#define VINO_MODULE_VERSION "0.0.7"
-
-MODULE_DESCRIPTION("SGI VINO Video4Linux2 driver");
-MODULE_VERSION(VINO_MODULE_VERSION);
-MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
-MODULE_LICENSE("GPL");
-
-#ifdef VINO_DEBUG
-#define dprintk(x...) printk("VINO: " x);
-#else
-#define dprintk(x...)
-#endif
-
-#define VINO_NO_CHANNEL 0
-#define VINO_CHANNEL_A 1
-#define VINO_CHANNEL_B 2
-
-#define VINO_PAL_WIDTH 768
-#define VINO_PAL_HEIGHT 576
-#define VINO_NTSC_WIDTH 640
-#define VINO_NTSC_HEIGHT 480
-
-#define VINO_MIN_WIDTH 32
-#define VINO_MIN_HEIGHT 32
-
-#define VINO_CLIPPING_START_ODD_D1 1
-#define VINO_CLIPPING_START_ODD_PAL 15
-#define VINO_CLIPPING_START_ODD_NTSC 12
-
-#define VINO_CLIPPING_START_EVEN_D1 2
-#define VINO_CLIPPING_START_EVEN_PAL 15
-#define VINO_CLIPPING_START_EVEN_NTSC 12
-
-#define VINO_INPUT_CHANNEL_COUNT 3
-
-/* the number is the index for vino_inputs */
-#define VINO_INPUT_NONE -1
-#define VINO_INPUT_COMPOSITE 0
-#define VINO_INPUT_SVIDEO 1
-#define VINO_INPUT_D1 2
-
-#define VINO_PAGE_RATIO (PAGE_SIZE / VINO_PAGE_SIZE)
-
-#define VINO_FIFO_THRESHOLD_DEFAULT 16
-
-#define VINO_FRAMEBUFFER_SIZE ((VINO_PAL_WIDTH \
- * VINO_PAL_HEIGHT * 4 \
- + 3 * PAGE_SIZE) & ~(PAGE_SIZE - 1))
-
-#define VINO_FRAMEBUFFER_COUNT_MAX 8
-
-#define VINO_FRAMEBUFFER_UNUSED 0
-#define VINO_FRAMEBUFFER_IN_USE 1
-#define VINO_FRAMEBUFFER_READY 2
-
-#define VINO_QUEUE_ERROR -1
-#define VINO_QUEUE_MAGIC 0x20050125
-
-#define VINO_MEMORY_NONE 0
-#define VINO_MEMORY_MMAP 1
-#define VINO_MEMORY_USERPTR 2
-
-#define VINO_DUMMY_DESC_COUNT 4
-#define VINO_DESC_FETCH_DELAY 5 /* microseconds */
-
-#define VINO_MAX_FRAME_SKIP_COUNT 128
-
-/* the number is the index for vino_data_formats */
-#define VINO_DATA_FMT_NONE -1
-#define VINO_DATA_FMT_GREY 0
-#define VINO_DATA_FMT_RGB332 1
-#define VINO_DATA_FMT_RGB32 2
-#define VINO_DATA_FMT_YUV 3
-
-#define VINO_DATA_FMT_COUNT 4
-
-/* the number is the index for vino_data_norms */
-#define VINO_DATA_NORM_NONE -1
-#define VINO_DATA_NORM_NTSC 0
-#define VINO_DATA_NORM_PAL 1
-#define VINO_DATA_NORM_SECAM 2
-#define VINO_DATA_NORM_D1 3
-
-#define VINO_DATA_NORM_COUNT 4
-
-/* I2C controller flags */
-#define SGI_I2C_FORCE_IDLE (0 << 0)
-#define SGI_I2C_NOT_IDLE (1 << 0)
-#define SGI_I2C_WRITE (0 << 1)
-#define SGI_I2C_READ (1 << 1)
-#define SGI_I2C_RELEASE_BUS (0 << 2)
-#define SGI_I2C_HOLD_BUS (1 << 2)
-#define SGI_I2C_XFER_DONE (0 << 4)
-#define SGI_I2C_XFER_BUSY (1 << 4)
-#define SGI_I2C_ACK (0 << 5)
-#define SGI_I2C_NACK (1 << 5)
-#define SGI_I2C_BUS_OK (0 << 7)
-#define SGI_I2C_BUS_ERR (1 << 7)
-
-/* Internal data structure definitions */
-
-struct vino_input {
- char *name;
- v4l2_std_id std;
-};
-
-struct vino_clipping {
- unsigned int left, right, top, bottom;
-};
-
-struct vino_data_format {
- /* the description */
- char *description;
- /* bytes per pixel */
- unsigned int bpp;
- /* V4L2 fourcc code */
- __u32 pixelformat;
- /* V4L2 colorspace (duh!) */
- enum v4l2_colorspace colorspace;
-};
-
-struct vino_data_norm {
- char *description;
- unsigned int width, height;
- struct vino_clipping odd;
- struct vino_clipping even;
-
- v4l2_std_id std;
- unsigned int fps_min, fps_max;
- __u32 framelines;
-};
-
-struct vino_descriptor_table {
- /* the number of PAGE_SIZE sized pages in the buffer */
- unsigned int page_count;
- /* virtual (kmalloc'd) pointers to the actual data
- * (in PAGE_SIZE chunks, used with mmap streaming) */
- unsigned long *virtual;
-
- /* cpu address for the VINO descriptor table
- * (contains DMA addresses, VINO_PAGE_SIZE chunks) */
- unsigned long *dma_cpu;
- /* dma address for the VINO descriptor table
- * (contains DMA addresses, VINO_PAGE_SIZE chunks) */
- dma_addr_t dma;
-};
-
-struct vino_framebuffer {
- /* identifier nubmer */
- unsigned int id;
- /* the length of the whole buffer */
- unsigned int size;
- /* the length of actual data in buffer */
- unsigned int data_size;
- /* the data format */
- unsigned int data_format;
- /* the state of buffer data */
- unsigned int state;
- /* is the buffer mapped in user space? */
- unsigned int map_count;
- /* memory offset for mmap() */
- unsigned int offset;
- /* frame counter */
- unsigned int frame_counter;
- /* timestamp (written when image capture finishes) */
- struct timeval timestamp;
-
- struct vino_descriptor_table desc_table;
-
- spinlock_t state_lock;
-};
-
-struct vino_framebuffer_fifo {
- unsigned int length;
-
- unsigned int used;
- unsigned int head;
- unsigned int tail;
-
- unsigned int data[VINO_FRAMEBUFFER_COUNT_MAX];
-};
-
-struct vino_framebuffer_queue {
- unsigned int magic;
-
- /* VINO_MEMORY_NONE, VINO_MEMORY_MMAP or VINO_MEMORY_USERPTR */
- unsigned int type;
- unsigned int length;
-
- /* data field of in and out contain index numbers for buffer */
- struct vino_framebuffer_fifo in;
- struct vino_framebuffer_fifo out;
-
- struct vino_framebuffer *buffer[VINO_FRAMEBUFFER_COUNT_MAX];
-
- spinlock_t queue_lock;
- struct mutex queue_mutex;
- wait_queue_head_t frame_wait_queue;
-};
-
-struct vino_interrupt_data {
- struct timeval timestamp;
- unsigned int frame_counter;
- unsigned int skip_count;
- unsigned int skip;
-};
-
-struct vino_channel_settings {
- unsigned int channel;
-
- int input;
- unsigned int data_format;
- unsigned int data_norm;
- struct vino_clipping clipping;
- unsigned int decimation;
- unsigned int line_size;
- unsigned int alpha;
- unsigned int fps;
- unsigned int framert_reg;
-
- unsigned int fifo_threshold;
-
- struct vino_framebuffer_queue fb_queue;
-
- /* number of the current field */
- unsigned int field;
-
- /* read in progress */
- int reading;
- /* streaming is active */
- int streaming;
- /* the driver is currently processing the queue */
- int capturing;
-
- struct mutex mutex;
- spinlock_t capture_lock;
-
- unsigned int users;
-
- struct vino_interrupt_data int_data;
-
- /* V4L support */
- struct video_device *vdev;
-};
-
-struct vino_settings {
- struct v4l2_device v4l2_dev;
- struct vino_channel_settings a;
- struct vino_channel_settings b;
-
- /* the channel which owns this client:
- * VINO_NO_CHANNEL, VINO_CHANNEL_A or VINO_CHANNEL_B */
- unsigned int decoder_owner;
- struct v4l2_subdev *decoder;
- unsigned int camera_owner;
- struct v4l2_subdev *camera;
-
- /* a lock for vino register access */
- spinlock_t vino_lock;
- /* a lock for channel input changes */
- spinlock_t input_lock;
-
- unsigned long dummy_page;
- struct vino_descriptor_table dummy_desc_table;
-};
-
-/* Module parameters */
-
-/*
- * Using vino_pixel_conversion the ABGR32-format pixels supplied
- * by the VINO chip can be converted to more common formats
- * like RGBA32 (or probably RGB24 in the future). This way we
- * can give out data that can be specified correctly with
- * the V4L2-definitions.
- *
- * The pixel format is specified as RGBA32 when no conversion
- * is used.
- *
- * Note that this only affects the 32-bit bit depth.
- *
- * Use non-zero value to enable conversion.
- */
-static int vino_pixel_conversion;
-
-module_param_named(pixelconv, vino_pixel_conversion, int, 0);
-
-MODULE_PARM_DESC(pixelconv,
- "enable pixel conversion (non-zero value enables)");
-
-/* Internal data structures */
-
-static struct sgi_vino *vino;
-
-static struct vino_settings *vino_drvdata;
-
-#define camera_call(o, f, args...) \
- v4l2_subdev_call(vino_drvdata->camera, o, f, ##args)
-#define decoder_call(o, f, args...) \
- v4l2_subdev_call(vino_drvdata->decoder, o, f, ##args)
-
-static const char *vino_driver_name = "vino";
-static const char *vino_driver_description = "SGI VINO";
-static const char *vino_bus_name = "GIO64 bus";
-static const char *vino_vdev_name_a = "SGI VINO Channel A";
-static const char *vino_vdev_name_b = "SGI VINO Channel B";
-
-static void vino_capture_tasklet(unsigned long channel);
-
-DECLARE_TASKLET(vino_tasklet_a, vino_capture_tasklet, VINO_CHANNEL_A);
-DECLARE_TASKLET(vino_tasklet_b, vino_capture_tasklet, VINO_CHANNEL_B);
-
-static const struct vino_input vino_inputs[] = {
- {
- .name = "Composite",
- .std = V4L2_STD_NTSC | V4L2_STD_PAL
- | V4L2_STD_SECAM,
- }, {
- .name = "S-Video",
- .std = V4L2_STD_NTSC | V4L2_STD_PAL
- | V4L2_STD_SECAM,
- }, {
- .name = "D1/IndyCam",
- .std = V4L2_STD_NTSC,
- }
-};
-
-static const struct vino_data_format vino_data_formats[] = {
- {
- .description = "8-bit greyscale",
- .bpp = 1,
- .pixelformat = V4L2_PIX_FMT_GREY,
- .colorspace = V4L2_COLORSPACE_SMPTE170M,
- }, {
- .description = "8-bit dithered RGB 3-3-2",
- .bpp = 1,
- .pixelformat = V4L2_PIX_FMT_RGB332,
- .colorspace = V4L2_COLORSPACE_SRGB,
- }, {
- .description = "32-bit RGB",
- .bpp = 4,
- .pixelformat = V4L2_PIX_FMT_RGB32,
- .colorspace = V4L2_COLORSPACE_SRGB,
- }, {
- .description = "YUV 4:2:2",
- .bpp = 2,
- .pixelformat = V4L2_PIX_FMT_YUYV, // XXX: swapped?
- .colorspace = V4L2_COLORSPACE_SMPTE170M,
- }
-};
-
-static const struct vino_data_norm vino_data_norms[] = {
- {
- .description = "NTSC",
- .std = V4L2_STD_NTSC,
- .fps_min = 6,
- .fps_max = 30,
- .framelines = 525,
- .width = VINO_NTSC_WIDTH,
- .height = VINO_NTSC_HEIGHT,
- .odd = {
- .top = VINO_CLIPPING_START_ODD_NTSC,
- .left = 0,
- .bottom = VINO_CLIPPING_START_ODD_NTSC
- + VINO_NTSC_HEIGHT / 2 - 1,
- .right = VINO_NTSC_WIDTH,
- },
- .even = {
- .top = VINO_CLIPPING_START_EVEN_NTSC,
- .left = 0,
- .bottom = VINO_CLIPPING_START_EVEN_NTSC
- + VINO_NTSC_HEIGHT / 2 - 1,
- .right = VINO_NTSC_WIDTH,
- },
- }, {
- .description = "PAL",
- .std = V4L2_STD_PAL,
- .fps_min = 5,
- .fps_max = 25,
- .framelines = 625,
- .width = VINO_PAL_WIDTH,
- .height = VINO_PAL_HEIGHT,
- .odd = {
- .top = VINO_CLIPPING_START_ODD_PAL,
- .left = 0,
- .bottom = VINO_CLIPPING_START_ODD_PAL
- + VINO_PAL_HEIGHT / 2 - 1,
- .right = VINO_PAL_WIDTH,
- },
- .even = {
- .top = VINO_CLIPPING_START_EVEN_PAL,
- .left = 0,
- .bottom = VINO_CLIPPING_START_EVEN_PAL
- + VINO_PAL_HEIGHT / 2 - 1,
- .right = VINO_PAL_WIDTH,
- },
- }, {
- .description = "SECAM",
- .std = V4L2_STD_SECAM,
- .fps_min = 5,
- .fps_max = 25,
- .framelines = 625,
- .width = VINO_PAL_WIDTH,
- .height = VINO_PAL_HEIGHT,
- .odd = {
- .top = VINO_CLIPPING_START_ODD_PAL,
- .left = 0,
- .bottom = VINO_CLIPPING_START_ODD_PAL
- + VINO_PAL_HEIGHT / 2 - 1,
- .right = VINO_PAL_WIDTH,
- },
- .even = {
- .top = VINO_CLIPPING_START_EVEN_PAL,
- .left = 0,
- .bottom = VINO_CLIPPING_START_EVEN_PAL
- + VINO_PAL_HEIGHT / 2 - 1,
- .right = VINO_PAL_WIDTH,
- },
- }, {
- .description = "NTSC/D1",
- .std = V4L2_STD_NTSC,
- .fps_min = 6,
- .fps_max = 30,
- .framelines = 525,
- .width = VINO_NTSC_WIDTH,
- .height = VINO_NTSC_HEIGHT,
- .odd = {
- .top = VINO_CLIPPING_START_ODD_D1,
- .left = 0,
- .bottom = VINO_CLIPPING_START_ODD_D1
- + VINO_NTSC_HEIGHT / 2 - 1,
- .right = VINO_NTSC_WIDTH,
- },
- .even = {
- .top = VINO_CLIPPING_START_EVEN_D1,
- .left = 0,
- .bottom = VINO_CLIPPING_START_EVEN_D1
- + VINO_NTSC_HEIGHT / 2 - 1,
- .right = VINO_NTSC_WIDTH,
- },
- }
-};
-
-#define VINO_INDYCAM_V4L2_CONTROL_COUNT 9
-
-struct v4l2_queryctrl vino_indycam_v4l2_controls[] = {
- {
- .id = V4L2_CID_AUTOGAIN,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Automatic Gain Control",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = INDYCAM_AGC_DEFAULT,
- }, {
- .id = V4L2_CID_AUTO_WHITE_BALANCE,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Automatic White Balance",
- .minimum = 0,
- .maximum = 1,
- .step = 1,
- .default_value = INDYCAM_AWB_DEFAULT,
- }, {
- .id = V4L2_CID_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gain",
- .minimum = INDYCAM_GAIN_MIN,
- .maximum = INDYCAM_GAIN_MAX,
- .step = 1,
- .default_value = INDYCAM_GAIN_DEFAULT,
- }, {
- .id = INDYCAM_CONTROL_RED_SATURATION,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Red Saturation",
- .minimum = INDYCAM_RED_SATURATION_MIN,
- .maximum = INDYCAM_RED_SATURATION_MAX,
- .step = 1,
- .default_value = INDYCAM_RED_SATURATION_DEFAULT,
- }, {
- .id = INDYCAM_CONTROL_BLUE_SATURATION,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Blue Saturation",
- .minimum = INDYCAM_BLUE_SATURATION_MIN,
- .maximum = INDYCAM_BLUE_SATURATION_MAX,
- .step = 1,
- .default_value = INDYCAM_BLUE_SATURATION_DEFAULT,
- }, {
- .id = V4L2_CID_RED_BALANCE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Red Balance",
- .minimum = INDYCAM_RED_BALANCE_MIN,
- .maximum = INDYCAM_RED_BALANCE_MAX,
- .step = 1,
- .default_value = INDYCAM_RED_BALANCE_DEFAULT,
- }, {
- .id = V4L2_CID_BLUE_BALANCE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Blue Balance",
- .minimum = INDYCAM_BLUE_BALANCE_MIN,
- .maximum = INDYCAM_BLUE_BALANCE_MAX,
- .step = 1,
- .default_value = INDYCAM_BLUE_BALANCE_DEFAULT,
- }, {
- .id = V4L2_CID_EXPOSURE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Shutter Control",
- .minimum = INDYCAM_SHUTTER_MIN,
- .maximum = INDYCAM_SHUTTER_MAX,
- .step = 1,
- .default_value = INDYCAM_SHUTTER_DEFAULT,
- }, {
- .id = V4L2_CID_GAMMA,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Gamma",
- .minimum = INDYCAM_GAMMA_MIN,
- .maximum = INDYCAM_GAMMA_MAX,
- .step = 1,
- .default_value = INDYCAM_GAMMA_DEFAULT,
- }
-};
-
-#define VINO_SAA7191_V4L2_CONTROL_COUNT 9
-
-struct v4l2_queryctrl vino_saa7191_v4l2_controls[] = {
- {
- .id = V4L2_CID_HUE,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Hue",
- .minimum = SAA7191_HUE_MIN,
- .maximum = SAA7191_HUE_MAX,
- .step = 1,
- .default_value = SAA7191_HUE_DEFAULT,
- }, {
- .id = SAA7191_CONTROL_BANDPASS,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Luminance Bandpass",
- .minimum = SAA7191_BANDPASS_MIN,
- .maximum = SAA7191_BANDPASS_MAX,
- .step = 1,
- .default_value = SAA7191_BANDPASS_DEFAULT,
- }, {
- .id = SAA7191_CONTROL_BANDPASS_WEIGHT,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Luminance Bandpass Weight",
- .minimum = SAA7191_BANDPASS_WEIGHT_MIN,
- .maximum = SAA7191_BANDPASS_WEIGHT_MAX,
- .step = 1,
- .default_value = SAA7191_BANDPASS_WEIGHT_DEFAULT,
- }, {
- .id = SAA7191_CONTROL_CORING,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "HF Luminance Coring",
- .minimum = SAA7191_CORING_MIN,
- .maximum = SAA7191_CORING_MAX,
- .step = 1,
- .default_value = SAA7191_CORING_DEFAULT,
- }, {
- .id = SAA7191_CONTROL_FORCE_COLOUR,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "Force Colour",
- .minimum = SAA7191_FORCE_COLOUR_MIN,
- .maximum = SAA7191_FORCE_COLOUR_MAX,
- .step = 1,
- .default_value = SAA7191_FORCE_COLOUR_DEFAULT,
- }, {
- .id = SAA7191_CONTROL_CHROMA_GAIN,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Chrominance Gain Control",
- .minimum = SAA7191_CHROMA_GAIN_MIN,
- .maximum = SAA7191_CHROMA_GAIN_MAX,
- .step = 1,
- .default_value = SAA7191_CHROMA_GAIN_DEFAULT,
- }, {
- .id = SAA7191_CONTROL_VTRC,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- .name = "VTR Time Constant",
- .minimum = SAA7191_VTRC_MIN,
- .maximum = SAA7191_VTRC_MAX,
- .step = 1,
- .default_value = SAA7191_VTRC_DEFAULT,
- }, {
- .id = SAA7191_CONTROL_LUMA_DELAY,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Luminance Delay Compensation",
- .minimum = SAA7191_LUMA_DELAY_MIN,
- .maximum = SAA7191_LUMA_DELAY_MAX,
- .step = 1,
- .default_value = SAA7191_LUMA_DELAY_DEFAULT,
- }, {
- .id = SAA7191_CONTROL_VNR,
- .type = V4L2_CTRL_TYPE_INTEGER,
- .name = "Vertical Noise Reduction",
- .minimum = SAA7191_VNR_MIN,
- .maximum = SAA7191_VNR_MAX,
- .step = 1,
- .default_value = SAA7191_VNR_DEFAULT,
- }
-};
-
-/* VINO framebuffer/DMA descriptor management */
-
-static void vino_free_buffer_with_count(struct vino_framebuffer *fb,
- unsigned int count)
-{
- unsigned int i;
-
- dprintk("vino_free_buffer_with_count(): count = %d\n", count);
-
- for (i = 0; i < count; i++) {
- ClearPageReserved(virt_to_page((void *)fb->desc_table.virtual[i]));
- dma_unmap_single(NULL,
- fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i],
- PAGE_SIZE, DMA_FROM_DEVICE);
- free_page(fb->desc_table.virtual[i]);
- }
-
- dma_free_coherent(NULL,
- VINO_PAGE_RATIO * (fb->desc_table.page_count + 4) *
- sizeof(dma_addr_t), (void *)fb->desc_table.dma_cpu,
- fb->desc_table.dma);
- kfree(fb->desc_table.virtual);
-
- memset(fb, 0, sizeof(struct vino_framebuffer));
-}
-
-static void vino_free_buffer(struct vino_framebuffer *fb)
-{
- vino_free_buffer_with_count(fb, fb->desc_table.page_count);
-}
-
-static int vino_allocate_buffer(struct vino_framebuffer *fb,
- unsigned int size)
-{
- unsigned int count, i, j;
- int ret = 0;
-
- dprintk("vino_allocate_buffer():\n");
-
- if (size < 1)
- return -EINVAL;
-
- memset(fb, 0, sizeof(struct vino_framebuffer));
-
- count = ((size / PAGE_SIZE) + 4) & ~3;
-
- dprintk("vino_allocate_buffer(): size = %d, count = %d\n",
- size, count);
-
- /* allocate memory for table with virtual (page) addresses */
- fb->desc_table.virtual =
- kmalloc(count * sizeof(unsigned long), GFP_KERNEL);
- if (!fb->desc_table.virtual)
- return -ENOMEM;
-
- /* allocate memory for table with dma addresses
- * (has space for four extra descriptors) */
- fb->desc_table.dma_cpu =
- dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) *
- sizeof(dma_addr_t), &fb->desc_table.dma,
- GFP_KERNEL | GFP_DMA);
- if (!fb->desc_table.dma_cpu) {
- ret = -ENOMEM;
- goto out_free_virtual;
- }
-
- /* allocate pages for the buffer and acquire the according
- * dma addresses */
- for (i = 0; i < count; i++) {
- dma_addr_t dma_data_addr;
-
- fb->desc_table.virtual[i] =
- get_zeroed_page(GFP_KERNEL | GFP_DMA);
- if (!fb->desc_table.virtual[i]) {
- ret = -ENOBUFS;
- break;
- }
-
- dma_data_addr =
- dma_map_single(NULL,
- (void *)fb->desc_table.virtual[i],
- PAGE_SIZE, DMA_FROM_DEVICE);
-
- for (j = 0; j < VINO_PAGE_RATIO; j++) {
- fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] =
- dma_data_addr + VINO_PAGE_SIZE * j;
- }
-
- SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i]));
- }
-
- /* page_count needs to be set anyway, because the descriptor table has
- * been allocated according to this number */
- fb->desc_table.page_count = count;
-
- if (ret) {
- /* the descriptor with index i doesn't contain
- * a valid address yet */
- vino_free_buffer_with_count(fb, i);
- return ret;
- }
-
- //fb->size = size;
- fb->size = count * PAGE_SIZE;
- fb->data_format = VINO_DATA_FMT_NONE;
-
- /* set the dma stop-bit for the last (count+1)th descriptor */
- fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP;
- return 0;
-
- out_free_virtual:
- kfree(fb->desc_table.virtual);
- return ret;
-}
-
-#if 0
-/* user buffers not fully implemented yet */
-static int vino_prepare_user_buffer(struct vino_framebuffer *fb,
- void *user,
- unsigned int size)
-{
- unsigned int count, i, j;
- int ret = 0;
-
- dprintk("vino_prepare_user_buffer():\n");
-
- if (size < 1)
- return -EINVAL;
-
- memset(fb, 0, sizeof(struct vino_framebuffer));
-
- count = ((size / PAGE_SIZE)) & ~3;
-
- dprintk("vino_prepare_user_buffer(): size = %d, count = %d\n",
- size, count);
-
- /* allocate memory for table with virtual (page) addresses */
- fb->desc_table.virtual = (unsigned long *)
- kmalloc(count * sizeof(unsigned long), GFP_KERNEL);
- if (!fb->desc_table.virtual)
- return -ENOMEM;
-
- /* allocate memory for table with dma addresses
- * (has space for four extra descriptors) */
- fb->desc_table.dma_cpu =
- dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) *
- sizeof(dma_addr_t), &fb->desc_table.dma,
- GFP_KERNEL | GFP_DMA);
- if (!fb->desc_table.dma_cpu) {
- ret = -ENOMEM;
- goto out_free_virtual;
- }
-
- /* allocate pages for the buffer and acquire the according
- * dma addresses */
- for (i = 0; i < count; i++) {
- dma_addr_t dma_data_addr;
-
- fb->desc_table.virtual[i] =
- get_zeroed_page(GFP_KERNEL | GFP_DMA);
- if (!fb->desc_table.virtual[i]) {
- ret = -ENOBUFS;
- break;
- }
-
- dma_data_addr =
- dma_map_single(NULL,
- (void *)fb->desc_table.virtual[i],
- PAGE_SIZE, DMA_FROM_DEVICE);
-
- for (j = 0; j < VINO_PAGE_RATIO; j++) {
- fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] =
- dma_data_addr + VINO_PAGE_SIZE * j;
- }
-
- SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i]));
- }
-
- /* page_count needs to be set anyway, because the descriptor table has
- * been allocated according to this number */
- fb->desc_table.page_count = count;
-
- if (ret) {
- /* the descriptor with index i doesn't contain
- * a valid address yet */
- vino_free_buffer_with_count(fb, i);
- return ret;
- }
-
- //fb->size = size;
- fb->size = count * PAGE_SIZE;
-
- /* set the dma stop-bit for the last (count+1)th descriptor */
- fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP;
- return 0;
-
- out_free_virtual:
- kfree(fb->desc_table.virtual);
- return ret;
-}
-#endif
-
-static void vino_sync_buffer(struct vino_framebuffer *fb)
-{
- int i;
-
- dprintk("vino_sync_buffer():\n");
-
- for (i = 0; i < fb->desc_table.page_count; i++)
- dma_sync_single_for_cpu(NULL,
- fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i],
- PAGE_SIZE, DMA_FROM_DEVICE);
-}
-
-/* Framebuffer fifo functions (need to be locked externally) */
-
-static inline void vino_fifo_init(struct vino_framebuffer_fifo *f,
- unsigned int length)
-{
- f->length = 0;
- f->used = 0;
- f->head = 0;
- f->tail = 0;
-
- if (length > VINO_FRAMEBUFFER_COUNT_MAX)
- length = VINO_FRAMEBUFFER_COUNT_MAX;
-
- f->length = length;
-}
-
-/* returns true/false */
-static inline int vino_fifo_has_id(struct vino_framebuffer_fifo *f,
- unsigned int id)
-{
- unsigned int i;
-
- for (i = f->head; i == (f->tail - 1); i = (i + 1) % f->length) {
- if (f->data[i] == id)
- return 1;
- }
-
- return 0;
-}
-
-#if 0
-/* returns true/false */
-static inline int vino_fifo_full(struct vino_framebuffer_fifo *f)
-{
- return (f->used == f->length);
-}
-#endif
-
-static inline unsigned int vino_fifo_get_used(struct vino_framebuffer_fifo *f)
-{
- return f->used;
-}
-
-static int vino_fifo_enqueue(struct vino_framebuffer_fifo *f, unsigned int id)
-{
- if (id >= f->length) {
- return VINO_QUEUE_ERROR;
- }
-
- if (vino_fifo_has_id(f, id)) {
- return VINO_QUEUE_ERROR;
- }
-
- if (f->used < f->length) {
- f->data[f->tail] = id;
- f->tail = (f->tail + 1) % f->length;
- f->used++;
- } else {
- return VINO_QUEUE_ERROR;
- }
-
- return 0;
-}
-
-static int vino_fifo_peek(struct vino_framebuffer_fifo *f, unsigned int *id)
-{
- if (f->used > 0) {
- *id = f->data[f->head];
- } else {
- return VINO_QUEUE_ERROR;
- }
-
- return 0;
-}
-
-static int vino_fifo_dequeue(struct vino_framebuffer_fifo *f, unsigned int *id)
-{
- if (f->used > 0) {
- *id = f->data[f->head];
- f->head = (f->head + 1) % f->length;
- f->used--;
- } else {
- return VINO_QUEUE_ERROR;
- }
-
- return 0;
-}
-
-/* Framebuffer queue functions */
-
-/* execute with queue_lock locked */
-static void vino_queue_free_with_count(struct vino_framebuffer_queue *q,
- unsigned int length)
-{
- unsigned int i;
-
- q->length = 0;
- memset(&q->in, 0, sizeof(struct vino_framebuffer_fifo));
- memset(&q->out, 0, sizeof(struct vino_framebuffer_fifo));
- for (i = 0; i < length; i++) {
- dprintk("vino_queue_free_with_count(): freeing buffer %d\n",
- i);
- vino_free_buffer(q->buffer[i]);
- kfree(q->buffer[i]);
- }
-
- q->type = VINO_MEMORY_NONE;
- q->magic = 0;
-}
-
-static void vino_queue_free(struct vino_framebuffer_queue *q)
-{
- dprintk("vino_queue_free():\n");
-
- if (q->magic != VINO_QUEUE_MAGIC)
- return;
- if (q->type != VINO_MEMORY_MMAP)
- return;
-
- mutex_lock(&q->queue_mutex);
-
- vino_queue_free_with_count(q, q->length);
-
- mutex_unlock(&q->queue_mutex);
-}
-
-static int vino_queue_init(struct vino_framebuffer_queue *q,
- unsigned int *length)
-{
- unsigned int i;
- int ret = 0;
-
- dprintk("vino_queue_init(): length = %d\n", *length);
-
- if (q->magic == VINO_QUEUE_MAGIC) {
- dprintk("vino_queue_init(): queue already initialized!\n");
- return -EINVAL;
- }
-
- if (q->type != VINO_MEMORY_NONE) {
- dprintk("vino_queue_init(): queue already initialized!\n");
- return -EINVAL;
- }
-
- if (*length < 1)
- return -EINVAL;
-
- mutex_lock(&q->queue_mutex);
-
- if (*length > VINO_FRAMEBUFFER_COUNT_MAX)
- *length = VINO_FRAMEBUFFER_COUNT_MAX;
-
- q->length = 0;
-
- for (i = 0; i < *length; i++) {
- dprintk("vino_queue_init(): allocating buffer %d\n", i);
- q->buffer[i] = kmalloc(sizeof(struct vino_framebuffer),
- GFP_KERNEL);
- if (!q->buffer[i]) {
- dprintk("vino_queue_init(): kmalloc() failed\n");
- ret = -ENOMEM;
- break;
- }
-
- ret = vino_allocate_buffer(q->buffer[i],
- VINO_FRAMEBUFFER_SIZE);
- if (ret) {
- kfree(q->buffer[i]);
- dprintk("vino_queue_init(): "
- "vino_allocate_buffer() failed\n");
- break;
- }
-
- q->buffer[i]->id = i;
- if (i > 0) {
- q->buffer[i]->offset = q->buffer[i - 1]->offset +
- q->buffer[i - 1]->size;
- } else {
- q->buffer[i]->offset = 0;
- }
-
- spin_lock_init(&q->buffer[i]->state_lock);
-
- dprintk("vino_queue_init(): buffer = %d, offset = %d, "
- "size = %d\n", i, q->buffer[i]->offset,
- q->buffer[i]->size);
- }
-
- if (ret) {
- vino_queue_free_with_count(q, i);
- *length = 0;
- } else {
- q->length = *length;
- vino_fifo_init(&q->in, q->length);
- vino_fifo_init(&q->out, q->length);
- q->type = VINO_MEMORY_MMAP;
- q->magic = VINO_QUEUE_MAGIC;
- }
-
- mutex_unlock(&q->queue_mutex);
-
- return ret;
-}
-
-static struct vino_framebuffer *vino_queue_add(struct
- vino_framebuffer_queue *q,
- unsigned int id)
-{
- struct vino_framebuffer *ret = NULL;
- unsigned int total;
- unsigned long flags;
-
- dprintk("vino_queue_add(): id = %d\n", id);
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return ret;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
-
- if (q->length == 0)
- goto out;
-
- if (id >= q->length)
- goto out;
-
- /* not needed?: if (vino_fifo_full(&q->out)) {
- goto out;
- }*/
- /* check that outgoing queue isn't already full
- * (or that it won't become full) */
- total = vino_fifo_get_used(&q->in) +
- vino_fifo_get_used(&q->out);
- if (total >= q->length)
- goto out;
-
- if (vino_fifo_enqueue(&q->in, id))
- goto out;
-
- ret = q->buffer[id];
-
-out:
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return ret;
-}
-
-static struct vino_framebuffer *vino_queue_transfer(struct
- vino_framebuffer_queue *q)
-{
- struct vino_framebuffer *ret = NULL;
- struct vino_framebuffer *fb;
- int id;
- unsigned long flags;
-
- dprintk("vino_queue_transfer():\n");
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return ret;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
-
- if (q->length == 0)
- goto out;
-
- // now this actually removes an entry from the incoming queue
- if (vino_fifo_dequeue(&q->in, &id)) {
- goto out;
- }
-
- dprintk("vino_queue_transfer(): id = %d\n", id);
- fb = q->buffer[id];
-
- // we have already checked that the outgoing queue is not full, but...
- if (vino_fifo_enqueue(&q->out, id)) {
- printk(KERN_ERR "vino_queue_transfer(): "
- "outgoing queue is full, this shouldn't happen!\n");
- goto out;
- }
-
- ret = fb;
-out:
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return ret;
-}
-
-/* returns true/false */
-static int vino_queue_incoming_contains(struct vino_framebuffer_queue *q,
- unsigned int id)
-{
- int ret = 0;
- unsigned long flags;
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return ret;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
-
- if (q->length == 0)
- goto out;
-
- ret = vino_fifo_has_id(&q->in, id);
-
-out:
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return ret;
-}
-
-/* returns true/false */
-static int vino_queue_outgoing_contains(struct vino_framebuffer_queue *q,
- unsigned int id)
-{
- int ret = 0;
- unsigned long flags;
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return ret;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
-
- if (q->length == 0)
- goto out;
-
- ret = vino_fifo_has_id(&q->out, id);
-
-out:
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return ret;
-}
-
-static int vino_queue_get_incoming(struct vino_framebuffer_queue *q,
- unsigned int *used)
-{
- int ret = 0;
- unsigned long flags;
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return VINO_QUEUE_ERROR;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
-
- if (q->length == 0) {
- ret = VINO_QUEUE_ERROR;
- goto out;
- }
-
- *used = vino_fifo_get_used(&q->in);
-
-out:
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return ret;
-}
-
-static int vino_queue_get_outgoing(struct vino_framebuffer_queue *q,
- unsigned int *used)
-{
- int ret = 0;
- unsigned long flags;
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return VINO_QUEUE_ERROR;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
-
- if (q->length == 0) {
- ret = VINO_QUEUE_ERROR;
- goto out;
- }
-
- *used = vino_fifo_get_used(&q->out);
-
-out:
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return ret;
-}
-
-#if 0
-static int vino_queue_get_total(struct vino_framebuffer_queue *q,
- unsigned int *total)
-{
- int ret = 0;
- unsigned long flags;
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return VINO_QUEUE_ERROR;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
-
- if (q->length == 0) {
- ret = VINO_QUEUE_ERROR;
- goto out;
- }
-
- *total = vino_fifo_get_used(&q->in) +
- vino_fifo_get_used(&q->out);
-
-out:
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return ret;
-}
-#endif
-
-static struct vino_framebuffer *vino_queue_peek(struct
- vino_framebuffer_queue *q,
- unsigned int *id)
-{
- struct vino_framebuffer *ret = NULL;
- unsigned long flags;
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return ret;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
-
- if (q->length == 0)
- goto out;
-
- if (vino_fifo_peek(&q->in, id)) {
- goto out;
- }
-
- ret = q->buffer[*id];
-out:
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return ret;
-}
-
-static struct vino_framebuffer *vino_queue_remove(struct
- vino_framebuffer_queue *q,
- unsigned int *id)
-{
- struct vino_framebuffer *ret = NULL;
- unsigned long flags;
- dprintk("vino_queue_remove():\n");
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return ret;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
-
- if (q->length == 0)
- goto out;
-
- if (vino_fifo_dequeue(&q->out, id)) {
- goto out;
- }
-
- dprintk("vino_queue_remove(): id = %d\n", *id);
- ret = q->buffer[*id];
-out:
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return ret;
-}
-
-static struct
-vino_framebuffer *vino_queue_get_buffer(struct vino_framebuffer_queue *q,
- unsigned int id)
-{
- struct vino_framebuffer *ret = NULL;
- unsigned long flags;
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return ret;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
-
- if (q->length == 0)
- goto out;
-
- if (id >= q->length)
- goto out;
-
- ret = q->buffer[id];
- out:
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return ret;
-}
-
-static unsigned int vino_queue_get_length(struct vino_framebuffer_queue *q)
-{
- unsigned int length = 0;
- unsigned long flags;
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return length;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
- length = q->length;
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return length;
-}
-
-static int vino_queue_has_mapped_buffers(struct vino_framebuffer_queue *q)
-{
- unsigned int i;
- int ret = 0;
- unsigned long flags;
-
- if (q->magic != VINO_QUEUE_MAGIC) {
- return ret;
- }
-
- spin_lock_irqsave(&q->queue_lock, flags);
- for (i = 0; i < q->length; i++) {
- if (q->buffer[i]->map_count > 0) {
- ret = 1;
- break;
- }
- }
- spin_unlock_irqrestore(&q->queue_lock, flags);
-
- return ret;
-}
-
-/* VINO functions */
-
-/* execute with input_lock locked */
-static void vino_update_line_size(struct vino_channel_settings *vcs)
-{
- unsigned int w = vcs->clipping.right - vcs->clipping.left;
- unsigned int d = vcs->decimation;
- unsigned int bpp = vino_data_formats[vcs->data_format].bpp;
- unsigned int lsize;
-
- dprintk("update_line_size(): before: w = %d, d = %d, "
- "line_size = %d\n", w, d, vcs->line_size);
-
- /* line size must be multiple of 8 bytes */
- lsize = (bpp * (w / d)) & ~7;
- w = (lsize / bpp) * d;
-
- vcs->clipping.right = vcs->clipping.left + w;
- vcs->line_size = lsize;
-
- dprintk("update_line_size(): after: w = %d, d = %d, "
- "line_size = %d\n", w, d, vcs->line_size);
-}
-
-/* execute with input_lock locked */
-static void vino_set_clipping(struct vino_channel_settings *vcs,
- unsigned int x, unsigned int y,
- unsigned int w, unsigned int h)
-{
- unsigned int maxwidth, maxheight;
- unsigned int d;
-
- maxwidth = vino_data_norms[vcs->data_norm].width;
- maxheight = vino_data_norms[vcs->data_norm].height;
- d = vcs->decimation;
-
- y &= ~1; /* odd/even fields */
-
- if (x > maxwidth) {
- x = 0;
- }
- if (y > maxheight) {
- y = 0;
- }
-
- if (((w / d) < VINO_MIN_WIDTH)
- || ((h / d) < VINO_MIN_HEIGHT)) {
- w = VINO_MIN_WIDTH * d;
- h = VINO_MIN_HEIGHT * d;
- }
-
- if ((x + w) > maxwidth) {
- w = maxwidth - x;
- if ((w / d) < VINO_MIN_WIDTH)
- x = maxwidth - VINO_MIN_WIDTH * d;
- }
- if ((y + h) > maxheight) {
- h = maxheight - y;
- if ((h / d) < VINO_MIN_HEIGHT)
- y = maxheight - VINO_MIN_HEIGHT * d;
- }
-
- vcs->clipping.left = x;
- vcs->clipping.top = y;
- vcs->clipping.right = x + w;
- vcs->clipping.bottom = y + h;
-
- vino_update_line_size(vcs);
-
- dprintk("clipping %d, %d, %d, %d / %d - %d\n",
- vcs->clipping.left, vcs->clipping.top, vcs->clipping.right,
- vcs->clipping.bottom, vcs->decimation, vcs->line_size);
-}
-
-/* execute with input_lock locked */
-static inline void vino_set_default_clipping(struct vino_channel_settings *vcs)
-{
- vino_set_clipping(vcs, 0, 0, vino_data_norms[vcs->data_norm].width,
- vino_data_norms[vcs->data_norm].height);
-}
-
-/* execute with input_lock locked */
-static void vino_set_scaling(struct vino_channel_settings *vcs,
- unsigned int w, unsigned int h)
-{
- unsigned int x, y, curw, curh, d;
-
- x = vcs->clipping.left;
- y = vcs->clipping.top;
- curw = vcs->clipping.right - vcs->clipping.left;
- curh = vcs->clipping.bottom - vcs->clipping.top;
-
- d = max(curw / w, curh / h);
-
- dprintk("scaling w: %d, h: %d, curw: %d, curh: %d, d: %d\n",
- w, h, curw, curh, d);
-
- if (d < 1) {
- d = 1;
- } else if (d > 8) {
- d = 8;
- }
-
- vcs->decimation = d;
- vino_set_clipping(vcs, x, y, w * d, h * d);
-
- dprintk("scaling %d, %d, %d, %d / %d - %d\n", vcs->clipping.left,
- vcs->clipping.top, vcs->clipping.right, vcs->clipping.bottom,
- vcs->decimation, vcs->line_size);
-}
-
-/* execute with input_lock locked */
-static inline void vino_set_default_scaling(struct vino_channel_settings *vcs)
-{
- vino_set_scaling(vcs, vcs->clipping.right - vcs->clipping.left,
- vcs->clipping.bottom - vcs->clipping.top);
-}
-
-/* execute with input_lock locked */
-static void vino_set_framerate(struct vino_channel_settings *vcs,
- unsigned int fps)
-{
- unsigned int mask;
-
- switch (vcs->data_norm) {
- case VINO_DATA_NORM_NTSC:
- case VINO_DATA_NORM_D1:
- fps = (unsigned int)(fps / 6) * 6; // FIXME: round!
-
- if (fps < vino_data_norms[vcs->data_norm].fps_min)
- fps = vino_data_norms[vcs->data_norm].fps_min;
- if (fps > vino_data_norms[vcs->data_norm].fps_max)
- fps = vino_data_norms[vcs->data_norm].fps_max;
-
- switch (fps) {
- case 6:
- mask = 0x003;
- break;
- case 12:
- mask = 0x0c3;
- break;
- case 18:
- mask = 0x333;
- break;
- case 24:
- mask = 0x3ff;
- break;
- case 30:
- mask = 0xfff;
- break;
- default:
- mask = VINO_FRAMERT_FULL;
- }
- vcs->framert_reg = VINO_FRAMERT_RT(mask);
- break;
- case VINO_DATA_NORM_PAL:
- case VINO_DATA_NORM_SECAM:
- fps = (unsigned int)(fps / 5) * 5; // FIXME: round!
-
- if (fps < vino_data_norms[vcs->data_norm].fps_min)
- fps = vino_data_norms[vcs->data_norm].fps_min;
- if (fps > vino_data_norms[vcs->data_norm].fps_max)
- fps = vino_data_norms[vcs->data_norm].fps_max;
-
- switch (fps) {
- case 5:
- mask = 0x003;
- break;
- case 10:
- mask = 0x0c3;
- break;
- case 15:
- mask = 0x333;
- break;
- case 20:
- mask = 0x0ff;
- break;
- case 25:
- mask = 0x3ff;
- break;
- default:
- mask = VINO_FRAMERT_FULL;
- }
- vcs->framert_reg = VINO_FRAMERT_RT(mask) | VINO_FRAMERT_PAL;
- break;
- }
-
- vcs->fps = fps;
-}
-
-/* execute with input_lock locked */
-static inline void vino_set_default_framerate(struct
- vino_channel_settings *vcs)
-{
- vino_set_framerate(vcs, vino_data_norms[vcs->data_norm].fps_max);
-}
-
-/* VINO I2C bus functions */
-
-struct i2c_algo_sgi_data {
- void *data; /* private data for lowlevel routines */
- unsigned (*getctrl)(void *data);
- void (*setctrl)(void *data, unsigned val);
- unsigned (*rdata)(void *data);
- void (*wdata)(void *data, unsigned val);
-
- int xfer_timeout;
- int ack_timeout;
-};
-
-static int wait_xfer_done(struct i2c_algo_sgi_data *adap)
-{
- int i;
-
- for (i = 0; i < adap->xfer_timeout; i++) {
- if ((adap->getctrl(adap->data) & SGI_I2C_XFER_BUSY) == 0)
- return 0;
- udelay(1);
- }
-
- return -ETIMEDOUT;
-}
-
-static int wait_ack(struct i2c_algo_sgi_data *adap)
-{
- int i;
-
- if (wait_xfer_done(adap))
- return -ETIMEDOUT;
- for (i = 0; i < adap->ack_timeout; i++) {
- if ((adap->getctrl(adap->data) & SGI_I2C_NACK) == 0)
- return 0;
- udelay(1);
- }
-
- return -ETIMEDOUT;
-}
-
-static int force_idle(struct i2c_algo_sgi_data *adap)
-{
- int i;
-
- adap->setctrl(adap->data, SGI_I2C_FORCE_IDLE);
- for (i = 0; i < adap->xfer_timeout; i++) {
- if ((adap->getctrl(adap->data) & SGI_I2C_NOT_IDLE) == 0)
- goto out;
- udelay(1);
- }
- return -ETIMEDOUT;
-out:
- if (adap->getctrl(adap->data) & SGI_I2C_BUS_ERR)
- return -EIO;
- return 0;
-}
-
-static int do_address(struct i2c_algo_sgi_data *adap, unsigned int addr,
- int rd)
-{
- if (rd)
- adap->setctrl(adap->data, SGI_I2C_NOT_IDLE);
- /* Check if bus is idle, eventually force it to do so */
- if (adap->getctrl(adap->data) & SGI_I2C_NOT_IDLE)
- if (force_idle(adap))
- return -EIO;
- /* Write out the i2c chip address and specify operation */
- adap->setctrl(adap->data,
- SGI_I2C_HOLD_BUS | SGI_I2C_WRITE | SGI_I2C_NOT_IDLE);
- if (rd)
- addr |= 1;
- adap->wdata(adap->data, addr);
- if (wait_ack(adap))
- return -EIO;
- return 0;
-}
-
-static int i2c_read(struct i2c_algo_sgi_data *adap, unsigned char *buf,
- unsigned int len)
-{
- int i;
-
- adap->setctrl(adap->data,
- SGI_I2C_HOLD_BUS | SGI_I2C_READ | SGI_I2C_NOT_IDLE);
- for (i = 0; i < len; i++) {
- if (wait_xfer_done(adap))
- return -EIO;
- buf[i] = adap->rdata(adap->data);
- }
- adap->setctrl(adap->data, SGI_I2C_RELEASE_BUS | SGI_I2C_FORCE_IDLE);
-
- return 0;
-
-}
-
-static int i2c_write(struct i2c_algo_sgi_data *adap, unsigned char *buf,
- unsigned int len)
-{
- int i;
-
- /* We are already in write state */
- for (i = 0; i < len; i++) {
- adap->wdata(adap->data, buf[i]);
- if (wait_ack(adap))
- return -EIO;
- }
- return 0;
-}
-
-static int sgi_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs,
- int num)
-{
- struct i2c_algo_sgi_data *adap = i2c_adap->algo_data;
- struct i2c_msg *p;
- int i, err = 0;
-
- for (i = 0; !err && i < num; i++) {
- p = &msgs[i];
- err = do_address(adap, p->addr, p->flags & I2C_M_RD);
- if (err || !p->len)
- continue;
- if (p->flags & I2C_M_RD)
- err = i2c_read(adap, p->buf, p->len);
- else
- err = i2c_write(adap, p->buf, p->len);
- }
-
- return (err < 0) ? err : i;
-}
-
-static u32 sgi_func(struct i2c_adapter *adap)
-{
- return I2C_FUNC_SMBUS_EMUL;
-}
-
-static const struct i2c_algorithm sgi_algo = {
- .master_xfer = sgi_xfer,
- .functionality = sgi_func,
-};
-
-static unsigned i2c_vino_getctrl(void *data)
-{
- return vino->i2c_control;
-}
-
-static void i2c_vino_setctrl(void *data, unsigned val)
-{
- vino->i2c_control = val;
-}
-
-static unsigned i2c_vino_rdata(void *data)
-{
- return vino->i2c_data;
-}
-
-static void i2c_vino_wdata(void *data, unsigned val)
-{
- vino->i2c_data = val;
-}
-
-static struct i2c_algo_sgi_data i2c_sgi_vino_data = {
- .getctrl = &i2c_vino_getctrl,
- .setctrl = &i2c_vino_setctrl,
- .rdata = &i2c_vino_rdata,
- .wdata = &i2c_vino_wdata,
- .xfer_timeout = 200,
- .ack_timeout = 1000,
-};
-
-static struct i2c_adapter vino_i2c_adapter = {
- .name = "VINO I2C bus",
- .algo = &sgi_algo,
- .algo_data = &i2c_sgi_vino_data,
- .owner = THIS_MODULE,
-};
-
-/*
- * Prepare VINO for DMA transfer...
- * (execute only with vino_lock and input_lock locked)
- */
-static int vino_dma_setup(struct vino_channel_settings *vcs,
- struct vino_framebuffer *fb)
-{
- u32 ctrl, intr;
- struct sgi_vino_channel *ch;
- const struct vino_data_norm *norm;
-
- dprintk("vino_dma_setup():\n");
-
- vcs->field = 0;
- fb->frame_counter = 0;
-
- ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b;
- norm = &vino_data_norms[vcs->data_norm];
-
- ch->page_index = 0;
- ch->line_count = 0;
-
- /* VINO line size register is set 8 bytes less than actual */
- ch->line_size = vcs->line_size - 8;
-
- /* let VINO know where to transfer data */
- ch->start_desc_tbl = fb->desc_table.dma;
- ch->next_4_desc = fb->desc_table.dma;
-
- /* give vino time to fetch the first four descriptors, 5 usec
- * should be more than enough time */
- udelay(VINO_DESC_FETCH_DELAY);
-
- dprintk("vino_dma_setup(): start desc = %08x, next 4 desc = %08x\n",
- ch->start_desc_tbl, ch->next_4_desc);
-
- /* set the alpha register */
- ch->alpha = vcs->alpha;
-
- /* set clipping registers */
- ch->clip_start = VINO_CLIP_ODD(norm->odd.top + vcs->clipping.top / 2) |
- VINO_CLIP_EVEN(norm->even.top +
- vcs->clipping.top / 2) |
- VINO_CLIP_X(vcs->clipping.left);
- ch->clip_end = VINO_CLIP_ODD(norm->odd.top +
- vcs->clipping.bottom / 2 - 1) |
- VINO_CLIP_EVEN(norm->even.top +
- vcs->clipping.bottom / 2 - 1) |
- VINO_CLIP_X(vcs->clipping.right);
-
- /* set the size of actual content in the buffer (DECIMATION !) */
- fb->data_size = ((vcs->clipping.right - vcs->clipping.left) /
- vcs->decimation) *
- ((vcs->clipping.bottom - vcs->clipping.top) /
- vcs->decimation) *
- vino_data_formats[vcs->data_format].bpp;
-
- ch->frame_rate = vcs->framert_reg;
-
- ctrl = vino->control;
- intr = vino->intr_status;
-
- if (vcs->channel == VINO_CHANNEL_A) {
- /* All interrupt conditions for this channel was cleared
- * so clear the interrupt status register and enable
- * interrupts */
- intr &= ~VINO_INTSTAT_A;
- ctrl |= VINO_CTRL_A_INT;
-
- /* enable synchronization */
- ctrl |= VINO_CTRL_A_SYNC_ENBL;
-
- /* enable frame assembly */
- ctrl |= VINO_CTRL_A_INTERLEAVE_ENBL;
-
- /* set decimation used */
- if (vcs->decimation < 2)
- ctrl &= ~VINO_CTRL_A_DEC_ENBL;
- else {
- ctrl |= VINO_CTRL_A_DEC_ENBL;
- ctrl &= ~VINO_CTRL_A_DEC_SCALE_MASK;
- ctrl |= (vcs->decimation - 1) <<
- VINO_CTRL_A_DEC_SCALE_SHIFT;
- }
-
- /* select input interface */
- if (vcs->input == VINO_INPUT_D1)
- ctrl |= VINO_CTRL_A_SELECT;
- else
- ctrl &= ~VINO_CTRL_A_SELECT;
-
- /* palette */
- ctrl &= ~(VINO_CTRL_A_LUMA_ONLY | VINO_CTRL_A_RGB |
- VINO_CTRL_A_DITHER);
- } else {
- intr &= ~VINO_INTSTAT_B;
- ctrl |= VINO_CTRL_B_INT;
-
- ctrl |= VINO_CTRL_B_SYNC_ENBL;
- ctrl |= VINO_CTRL_B_INTERLEAVE_ENBL;
-
- if (vcs->decimation < 2)
- ctrl &= ~VINO_CTRL_B_DEC_ENBL;
- else {
- ctrl |= VINO_CTRL_B_DEC_ENBL;
- ctrl &= ~VINO_CTRL_B_DEC_SCALE_MASK;
- ctrl |= (vcs->decimation - 1) <<
- VINO_CTRL_B_DEC_SCALE_SHIFT;
-
- }
- if (vcs->input == VINO_INPUT_D1)
- ctrl |= VINO_CTRL_B_SELECT;
- else
- ctrl &= ~VINO_CTRL_B_SELECT;
-
- ctrl &= ~(VINO_CTRL_B_LUMA_ONLY | VINO_CTRL_B_RGB |
- VINO_CTRL_B_DITHER);
- }
-
- /* set palette */
- fb->data_format = vcs->data_format;
-
- switch (vcs->data_format) {
- case VINO_DATA_FMT_GREY:
- ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
- VINO_CTRL_A_LUMA_ONLY : VINO_CTRL_B_LUMA_ONLY;
- break;
- case VINO_DATA_FMT_RGB32:
- ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
- VINO_CTRL_A_RGB : VINO_CTRL_B_RGB;
- break;
- case VINO_DATA_FMT_YUV:
- /* nothing needs to be done */
- break;
- case VINO_DATA_FMT_RGB332:
- ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
- VINO_CTRL_A_RGB | VINO_CTRL_A_DITHER :
- VINO_CTRL_B_RGB | VINO_CTRL_B_DITHER;
- break;
- }
-
- vino->intr_status = intr;
- vino->control = ctrl;
-
- return 0;
-}
-
-/* (execute only with vino_lock locked) */
-static inline void vino_dma_start(struct vino_channel_settings *vcs)
-{
- u32 ctrl = vino->control;
-
- dprintk("vino_dma_start():\n");
- ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
- VINO_CTRL_A_DMA_ENBL : VINO_CTRL_B_DMA_ENBL;
- vino->control = ctrl;
-}
-
-/* (execute only with vino_lock locked) */
-static inline void vino_dma_stop(struct vino_channel_settings *vcs)
-{
- u32 ctrl = vino->control;
-
- ctrl &= (vcs->channel == VINO_CHANNEL_A) ?
- ~VINO_CTRL_A_DMA_ENBL : ~VINO_CTRL_B_DMA_ENBL;
- ctrl &= (vcs->channel == VINO_CHANNEL_A) ?
- ~VINO_CTRL_A_INT : ~VINO_CTRL_B_INT;
- vino->control = ctrl;
- dprintk("vino_dma_stop():\n");
-}
-
-/*
- * Load dummy page to descriptor registers. This prevents generating of
- * spurious interrupts. (execute only with vino_lock locked)
- */
-static void vino_clear_interrupt(struct vino_channel_settings *vcs)
-{
- struct sgi_vino_channel *ch;
-
- ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b;
-
- ch->page_index = 0;
- ch->line_count = 0;
-
- ch->start_desc_tbl = vino_drvdata->dummy_desc_table.dma;
- ch->next_4_desc = vino_drvdata->dummy_desc_table.dma;
-
- udelay(VINO_DESC_FETCH_DELAY);
- dprintk("channel %c clear interrupt condition\n",
- (vcs->channel == VINO_CHANNEL_A) ? 'A':'B');
-}
-
-static int vino_capture(struct vino_channel_settings *vcs,
- struct vino_framebuffer *fb)
-{
- int err = 0;
- unsigned long flags, flags2;
-
- spin_lock_irqsave(&fb->state_lock, flags);
-
- if (fb->state == VINO_FRAMEBUFFER_IN_USE)
- err = -EBUSY;
- fb->state = VINO_FRAMEBUFFER_IN_USE;
-
- spin_unlock_irqrestore(&fb->state_lock, flags);
-
- if (err)
- return err;
-
- spin_lock_irqsave(&vino_drvdata->vino_lock, flags);
- spin_lock_irqsave(&vino_drvdata->input_lock, flags2);
-
- vino_dma_setup(vcs, fb);
- vino_dma_start(vcs);
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags2);
- spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags);
-
- return err;
-}
-
-static
-struct vino_framebuffer *vino_capture_enqueue(struct
- vino_channel_settings *vcs,
- unsigned int index)
-{
- struct vino_framebuffer *fb;
- unsigned long flags;
-
- dprintk("vino_capture_enqueue():\n");
-
- spin_lock_irqsave(&vcs->capture_lock, flags);
-
- fb = vino_queue_add(&vcs->fb_queue, index);
- if (fb == NULL) {
- dprintk("vino_capture_enqueue(): vino_queue_add() failed, "
- "queue full?\n");
- goto out;
- }
-out:
- spin_unlock_irqrestore(&vcs->capture_lock, flags);
-
- return fb;
-}
-
-static int vino_capture_next(struct vino_channel_settings *vcs, int start)
-{
- struct vino_framebuffer *fb;
- unsigned int incoming, id;
- int err = 0;
- unsigned long flags;
-
- dprintk("vino_capture_next():\n");
-
- spin_lock_irqsave(&vcs->capture_lock, flags);
-
- if (start) {
- /* start capture only if capture isn't in progress already */
- if (vcs->capturing) {
- spin_unlock_irqrestore(&vcs->capture_lock, flags);
- return 0;
- }
-
- } else {
- /* capture next frame:
- * stop capture if capturing is not set */
- if (!vcs->capturing) {
- spin_unlock_irqrestore(&vcs->capture_lock, flags);
- return 0;
- }
- }
-
- err = vino_queue_get_incoming(&vcs->fb_queue, &incoming);
- if (err) {
- dprintk("vino_capture_next(): vino_queue_get_incoming() "
- "failed\n");
- err = -EINVAL;
- goto out;
- }
- if (incoming == 0) {
- dprintk("vino_capture_next(): no buffers available\n");
- goto out;
- }
-
- fb = vino_queue_peek(&vcs->fb_queue, &id);
- if (fb == NULL) {
- dprintk("vino_capture_next(): vino_queue_peek() failed\n");
- err = -EINVAL;
- goto out;
- }
-
- if (start) {
- vcs->capturing = 1;
- }
-
- spin_unlock_irqrestore(&vcs->capture_lock, flags);
-
- err = vino_capture(vcs, fb);
-
- return err;
-
-out:
- vcs->capturing = 0;
- spin_unlock_irqrestore(&vcs->capture_lock, flags);
-
- return err;
-}
-
-static inline int vino_is_capturing(struct vino_channel_settings *vcs)
-{
- int ret;
- unsigned long flags;
-
- spin_lock_irqsave(&vcs->capture_lock, flags);
-
- ret = vcs->capturing;
-
- spin_unlock_irqrestore(&vcs->capture_lock, flags);
-
- return ret;
-}
-
-/* waits until a frame is captured */
-static int vino_wait_for_frame(struct vino_channel_settings *vcs)
-{
- wait_queue_t wait;
- int err = 0;
-
- dprintk("vino_wait_for_frame():\n");
-
- init_waitqueue_entry(&wait, current);
- /* add ourselves into wait queue */
- add_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait);
-
- /* to ensure that schedule_timeout will return immediately
- * if VINO interrupt was triggered meanwhile */
- schedule_timeout_interruptible(msecs_to_jiffies(100));
-
- if (signal_pending(current))
- err = -EINTR;
-
- remove_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait);
-
- dprintk("vino_wait_for_frame(): waiting for frame %s\n",
- err ? "failed" : "ok");
-
- return err;
-}
-
-/* the function assumes that PAGE_SIZE % 4 == 0 */
-static void vino_convert_to_rgba(struct vino_framebuffer *fb) {
- unsigned char *pageptr;
- unsigned int page, i;
- unsigned char a;
-
- for (page = 0; page < fb->desc_table.page_count; page++) {
- pageptr = (unsigned char *)fb->desc_table.virtual[page];
-
- for (i = 0; i < PAGE_SIZE; i += 4) {
- a = pageptr[0];
- pageptr[0] = pageptr[3];
- pageptr[1] = pageptr[2];
- pageptr[2] = pageptr[1];
- pageptr[3] = a;
- pageptr += 4;
- }
- }
-}
-
-/* checks if the buffer is in correct state and syncs data */
-static int vino_check_buffer(struct vino_channel_settings *vcs,
- struct vino_framebuffer *fb)
-{
- int err = 0;
- unsigned long flags;
-
- dprintk("vino_check_buffer():\n");
-
- spin_lock_irqsave(&fb->state_lock, flags);
- switch (fb->state) {
- case VINO_FRAMEBUFFER_IN_USE:
- err = -EIO;
- break;
- case VINO_FRAMEBUFFER_READY:
- vino_sync_buffer(fb);
- fb->state = VINO_FRAMEBUFFER_UNUSED;
- break;
- default:
- err = -EINVAL;
- }
- spin_unlock_irqrestore(&fb->state_lock, flags);
-
- if (!err) {
- if (vino_pixel_conversion
- && (fb->data_format == VINO_DATA_FMT_RGB32)) {
- vino_convert_to_rgba(fb);
- }
- } else if (err && (err != -EINVAL)) {
- dprintk("vino_check_buffer(): buffer not ready\n");
-
- spin_lock_irqsave(&vino_drvdata->vino_lock, flags);
- vino_dma_stop(vcs);
- vino_clear_interrupt(vcs);
- spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags);
- }
-
- return err;
-}
-
-/* forcefully terminates capture */
-static void vino_capture_stop(struct vino_channel_settings *vcs)
-{
- unsigned int incoming = 0, outgoing = 0, id;
- unsigned long flags, flags2;
-
- dprintk("vino_capture_stop():\n");
-
- spin_lock_irqsave(&vcs->capture_lock, flags);
-
- /* unset capturing to stop queue processing */
- vcs->capturing = 0;
-
- spin_lock_irqsave(&vino_drvdata->vino_lock, flags2);
-
- vino_dma_stop(vcs);
- vino_clear_interrupt(vcs);
-
- spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags2);
-
- /* remove all items from the queue */
- if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) {
- dprintk("vino_capture_stop(): "
- "vino_queue_get_incoming() failed\n");
- goto out;
- }
- while (incoming > 0) {
- vino_queue_transfer(&vcs->fb_queue);
-
- if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) {
- dprintk("vino_capture_stop(): "
- "vino_queue_get_incoming() failed\n");
- goto out;
- }
- }
-
- if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
- dprintk("vino_capture_stop(): "
- "vino_queue_get_outgoing() failed\n");
- goto out;
- }
- while (outgoing > 0) {
- vino_queue_remove(&vcs->fb_queue, &id);
-
- if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
- dprintk("vino_capture_stop(): "
- "vino_queue_get_outgoing() failed\n");
- goto out;
- }
- }
-
-out:
- spin_unlock_irqrestore(&vcs->capture_lock, flags);
-}
-
-#if 0
-static int vino_capture_failed(struct vino_channel_settings *vcs)
-{
- struct vino_framebuffer *fb;
- unsigned long flags;
- unsigned int i;
- int ret;
-
- dprintk("vino_capture_failed():\n");
-
- spin_lock_irqsave(&vino_drvdata->vino_lock, flags);
-
- vino_dma_stop(vcs);
- vino_clear_interrupt(vcs);
-
- spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags);
-
- ret = vino_queue_get_incoming(&vcs->fb_queue, &i);
- if (ret == VINO_QUEUE_ERROR) {
- dprintk("vino_queue_get_incoming() failed\n");
- return -EINVAL;
- }
- if (i == 0) {
- /* no buffers to process */
- return 0;
- }
-
- fb = vino_queue_peek(&vcs->fb_queue, &i);
- if (fb == NULL) {
- dprintk("vino_queue_peek() failed\n");
- return -EINVAL;
- }
-
- spin_lock_irqsave(&fb->state_lock, flags);
- if (fb->state == VINO_FRAMEBUFFER_IN_USE) {
- fb->state = VINO_FRAMEBUFFER_UNUSED;
- vino_queue_transfer(&vcs->fb_queue);
- vino_queue_remove(&vcs->fb_queue, &i);
- /* we should actually discard the newest frame,
- * but who cares ... */
- }
- spin_unlock_irqrestore(&fb->state_lock, flags);
-
- return 0;
-}
-#endif
-
-static void vino_skip_frame(struct vino_channel_settings *vcs)
-{
- struct vino_framebuffer *fb;
- unsigned long flags;
- unsigned int id;
-
- spin_lock_irqsave(&vcs->capture_lock, flags);
- fb = vino_queue_peek(&vcs->fb_queue, &id);
- if (!fb) {
- spin_unlock_irqrestore(&vcs->capture_lock, flags);
- dprintk("vino_skip_frame(): vino_queue_peek() failed!\n");
- return;
- }
- spin_unlock_irqrestore(&vcs->capture_lock, flags);
-
- spin_lock_irqsave(&fb->state_lock, flags);
- fb->state = VINO_FRAMEBUFFER_UNUSED;
- spin_unlock_irqrestore(&fb->state_lock, flags);
-
- vino_capture_next(vcs, 0);
-}
-
-static void vino_frame_done(struct vino_channel_settings *vcs)
-{
- struct vino_framebuffer *fb;
- unsigned long flags;
-
- spin_lock_irqsave(&vcs->capture_lock, flags);
- fb = vino_queue_transfer(&vcs->fb_queue);
- if (!fb) {
- spin_unlock_irqrestore(&vcs->capture_lock, flags);
- dprintk("vino_frame_done(): vino_queue_transfer() failed!\n");
- return;
- }
- spin_unlock_irqrestore(&vcs->capture_lock, flags);
-
- fb->frame_counter = vcs->int_data.frame_counter;
- memcpy(&fb->timestamp, &vcs->int_data.timestamp,
- sizeof(struct timeval));
-
- spin_lock_irqsave(&fb->state_lock, flags);
- if (fb->state == VINO_FRAMEBUFFER_IN_USE)
- fb->state = VINO_FRAMEBUFFER_READY;
- spin_unlock_irqrestore(&fb->state_lock, flags);
-
- wake_up(&vcs->fb_queue.frame_wait_queue);
-
- vino_capture_next(vcs, 0);
-}
-
-static void vino_capture_tasklet(unsigned long channel) {
- struct vino_channel_settings *vcs;
-
- vcs = (channel == VINO_CHANNEL_A)
- ? &vino_drvdata->a : &vino_drvdata->b;
-
- if (vcs->int_data.skip)
- vcs->int_data.skip_count++;
-
- if (vcs->int_data.skip && (vcs->int_data.skip_count
- <= VINO_MAX_FRAME_SKIP_COUNT)) {
- vino_skip_frame(vcs);
- } else {
- vcs->int_data.skip_count = 0;
- vino_frame_done(vcs);
- }
-}
-
-static irqreturn_t vino_interrupt(int irq, void *dev_id)
-{
- u32 ctrl, intr;
- unsigned int fc_a, fc_b;
- int handled_a = 0, skip_a = 0, done_a = 0;
- int handled_b = 0, skip_b = 0, done_b = 0;
-
-#ifdef VINO_DEBUG_INT
- int loop = 0;
- unsigned int line_count = vino->a.line_count,
- page_index = vino->a.page_index,
- field_counter = vino->a.field_counter,
- start_desc_tbl = vino->a.start_desc_tbl,
- next_4_desc = vino->a.next_4_desc;
- unsigned int line_count_2,
- page_index_2,
- field_counter_2,
- start_desc_tbl_2,
- next_4_desc_2;
-#endif
-
- spin_lock(&vino_drvdata->vino_lock);
-
- while ((intr = vino->intr_status)) {
- fc_a = vino->a.field_counter >> 1;
- fc_b = vino->b.field_counter >> 1;
-
- /* handle error-interrupts in some special way ?
- * --> skips frames */
- if (intr & VINO_INTSTAT_A) {
- if (intr & VINO_INTSTAT_A_EOF) {
- vino_drvdata->a.field++;
- if (vino_drvdata->a.field > 1) {
- vino_dma_stop(&vino_drvdata->a);
- vino_clear_interrupt(&vino_drvdata->a);
- vino_drvdata->a.field = 0;
- done_a = 1;
- } else {
- if (vino->a.page_index
- != vino_drvdata->a.line_size) {
- vino->a.line_count = 0;
- vino->a.page_index =
- vino_drvdata->
- a.line_size;
- vino->a.next_4_desc =
- vino->a.start_desc_tbl;
- }
- }
- dprintk("channel A end-of-field "
- "interrupt: %04x\n", intr);
- } else {
- vino_dma_stop(&vino_drvdata->a);
- vino_clear_interrupt(&vino_drvdata->a);
- vino_drvdata->a.field = 0;
- skip_a = 1;
- dprintk("channel A error interrupt: %04x\n",
- intr);
- }
-
-#ifdef VINO_DEBUG_INT
- line_count_2 = vino->a.line_count;
- page_index_2 = vino->a.page_index;
- field_counter_2 = vino->a.field_counter;
- start_desc_tbl_2 = vino->a.start_desc_tbl;
- next_4_desc_2 = vino->a.next_4_desc;
-
- printk("intr = %04x, loop = %d, field = %d\n",
- intr, loop, vino_drvdata->a.field);
- printk("1- line count = %04d, page index = %04d, "
- "start = %08x, next = %08x\n"
- " fieldc = %d, framec = %d\n",
- line_count, page_index, start_desc_tbl,
- next_4_desc, field_counter, fc_a);
- printk("12-line count = %04d, page index = %04d, "
- " start = %08x, next = %08x\n",
- line_count_2, page_index_2, start_desc_tbl_2,
- next_4_desc_2);
-
- if (done_a)
- printk("\n");
-#endif
- }
-
- if (intr & VINO_INTSTAT_B) {
- if (intr & VINO_INTSTAT_B_EOF) {
- vino_drvdata->b.field++;
- if (vino_drvdata->b.field > 1) {
- vino_dma_stop(&vino_drvdata->b);
- vino_clear_interrupt(&vino_drvdata->b);
- vino_drvdata->b.field = 0;
- done_b = 1;
- }
- dprintk("channel B end-of-field "
- "interrupt: %04x\n", intr);
- } else {
- vino_dma_stop(&vino_drvdata->b);
- vino_clear_interrupt(&vino_drvdata->b);
- vino_drvdata->b.field = 0;
- skip_b = 1;
- dprintk("channel B error interrupt: %04x\n",
- intr);
- }
- }
-
- /* Always remember to clear interrupt status.
- * Disable VINO interrupts while we do this. */
- ctrl = vino->control;
- vino->control = ctrl & ~(VINO_CTRL_A_INT | VINO_CTRL_B_INT);
- vino->intr_status = ~intr;
- vino->control = ctrl;
-
- spin_unlock(&vino_drvdata->vino_lock);
-
- if ((!handled_a) && (done_a || skip_a)) {
- if (!skip_a) {
- v4l2_get_timestamp(
- &vino_drvdata->a.int_data.timestamp);
- vino_drvdata->a.int_data.frame_counter = fc_a;
- }
- vino_drvdata->a.int_data.skip = skip_a;
-
- dprintk("channel A %s, interrupt: %d\n",
- skip_a ? "skipping frame" : "frame done",
- intr);
- tasklet_hi_schedule(&vino_tasklet_a);
- handled_a = 1;
- }
-
- if ((!handled_b) && (done_b || skip_b)) {
- if (!skip_b) {
- v4l2_get_timestamp(
- &vino_drvdata->b.int_data.timestamp);
- vino_drvdata->b.int_data.frame_counter = fc_b;
- }
- vino_drvdata->b.int_data.skip = skip_b;
-
- dprintk("channel B %s, interrupt: %d\n",
- skip_b ? "skipping frame" : "frame done",
- intr);
- tasklet_hi_schedule(&vino_tasklet_b);
- handled_b = 1;
- }
-
-#ifdef VINO_DEBUG_INT
- loop++;
-#endif
- spin_lock(&vino_drvdata->vino_lock);
- }
-
- spin_unlock(&vino_drvdata->vino_lock);
-
- return IRQ_HANDLED;
-}
-
-/* VINO video input management */
-
-static int vino_get_saa7191_input(int input)
-{
- switch (input) {
- case VINO_INPUT_COMPOSITE:
- return SAA7191_INPUT_COMPOSITE;
- case VINO_INPUT_SVIDEO:
- return SAA7191_INPUT_SVIDEO;
- default:
- printk(KERN_ERR "VINO: vino_get_saa7191_input(): "
- "invalid input!\n");
- return -1;
- }
-}
-
-/* execute with input_lock locked */
-static int vino_is_input_owner(struct vino_channel_settings *vcs)
-{
- switch(vcs->input) {
- case VINO_INPUT_COMPOSITE:
- case VINO_INPUT_SVIDEO:
- return vino_drvdata->decoder_owner == vcs->channel;
- case VINO_INPUT_D1:
- return vino_drvdata->camera_owner == vcs->channel;
- default:
- return 0;
- }
-}
-
-static int vino_acquire_input(struct vino_channel_settings *vcs)
-{
- unsigned long flags;
- int ret = 0;
-
- dprintk("vino_acquire_input():\n");
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- /* First try D1 and then SAA7191 */
- if (vino_drvdata->camera
- && (vino_drvdata->camera_owner == VINO_NO_CHANNEL)) {
- vino_drvdata->camera_owner = vcs->channel;
- vcs->input = VINO_INPUT_D1;
- vcs->data_norm = VINO_DATA_NORM_D1;
- } else if (vino_drvdata->decoder
- && (vino_drvdata->decoder_owner == VINO_NO_CHANNEL)) {
- int input;
- int data_norm = 0;
- v4l2_std_id norm;
-
- input = VINO_INPUT_COMPOSITE;
-
- ret = decoder_call(video, s_routing,
- vino_get_saa7191_input(input), 0, 0);
- if (ret) {
- ret = -EINVAL;
- goto out;
- }
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- /* Don't hold spinlocks while auto-detecting norm
- * as it may take a while... */
-
- ret = decoder_call(video, querystd, &norm);
- if (!ret) {
- for (data_norm = 0; data_norm < 3; data_norm++) {
- if (vino_data_norms[data_norm].std & norm)
- break;
- }
- if (data_norm == 3)
- data_norm = VINO_DATA_NORM_PAL;
- ret = decoder_call(video, s_std, norm);
- }
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- if (ret) {
- ret = -EINVAL;
- goto out;
- }
-
- vino_drvdata->decoder_owner = vcs->channel;
-
- vcs->input = input;
- vcs->data_norm = data_norm;
- } else {
- vcs->input = (vcs->channel == VINO_CHANNEL_A) ?
- vino_drvdata->b.input : vino_drvdata->a.input;
- vcs->data_norm = (vcs->channel == VINO_CHANNEL_A) ?
- vino_drvdata->b.data_norm : vino_drvdata->a.data_norm;
- }
-
- if (vcs->input == VINO_INPUT_NONE) {
- ret = -ENODEV;
- goto out;
- }
-
- vino_set_default_clipping(vcs);
- vino_set_default_scaling(vcs);
- vino_set_default_framerate(vcs);
-
- dprintk("vino_acquire_input(): %s\n", vino_inputs[vcs->input].name);
-
-out:
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- return ret;
-}
-
-static int vino_set_input(struct vino_channel_settings *vcs, int input)
-{
- struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ?
- &vino_drvdata->b : &vino_drvdata->a;
- unsigned long flags;
- int ret = 0;
-
- dprintk("vino_set_input():\n");
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- if (vcs->input == input)
- goto out;
-
- switch (input) {
- case VINO_INPUT_COMPOSITE:
- case VINO_INPUT_SVIDEO:
- if (!vino_drvdata->decoder) {
- ret = -EINVAL;
- goto out;
- }
-
- if (vino_drvdata->decoder_owner == VINO_NO_CHANNEL) {
- vino_drvdata->decoder_owner = vcs->channel;
- }
-
- if (vino_drvdata->decoder_owner == vcs->channel) {
- int data_norm = 0;
- v4l2_std_id norm;
-
- ret = decoder_call(video, s_routing,
- vino_get_saa7191_input(input), 0, 0);
- if (ret) {
- vino_drvdata->decoder_owner = VINO_NO_CHANNEL;
- ret = -EINVAL;
- goto out;
- }
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- /* Don't hold spinlocks while auto-detecting norm
- * as it may take a while... */
-
- ret = decoder_call(video, querystd, &norm);
- if (!ret) {
- for (data_norm = 0; data_norm < 3; data_norm++) {
- if (vino_data_norms[data_norm].std & norm)
- break;
- }
- if (data_norm == 3)
- data_norm = VINO_DATA_NORM_PAL;
- ret = decoder_call(video, s_std, norm);
- }
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- if (ret) {
- vino_drvdata->decoder_owner = VINO_NO_CHANNEL;
- ret = -EINVAL;
- goto out;
- }
-
- vcs->input = input;
- vcs->data_norm = data_norm;
- } else {
- if (input != vcs2->input) {
- ret = -EBUSY;
- goto out;
- }
-
- vcs->input = input;
- vcs->data_norm = vcs2->data_norm;
- }
-
- if (vino_drvdata->camera_owner == vcs->channel) {
- /* Transfer the ownership or release the input */
- if (vcs2->input == VINO_INPUT_D1) {
- vino_drvdata->camera_owner = vcs2->channel;
- } else {
- vino_drvdata->camera_owner = VINO_NO_CHANNEL;
- }
- }
- break;
- case VINO_INPUT_D1:
- if (!vino_drvdata->camera) {
- ret = -EINVAL;
- goto out;
- }
-
- if (vino_drvdata->camera_owner == VINO_NO_CHANNEL)
- vino_drvdata->camera_owner = vcs->channel;
-
- if (vino_drvdata->decoder_owner == vcs->channel) {
- /* Transfer the ownership or release the input */
- if ((vcs2->input == VINO_INPUT_COMPOSITE) ||
- (vcs2->input == VINO_INPUT_SVIDEO)) {
- vino_drvdata->decoder_owner = vcs2->channel;
- } else {
- vino_drvdata->decoder_owner = VINO_NO_CHANNEL;
- }
- }
-
- vcs->input = input;
- vcs->data_norm = VINO_DATA_NORM_D1;
- break;
- default:
- ret = -EINVAL;
- goto out;
- }
-
- vino_set_default_clipping(vcs);
- vino_set_default_scaling(vcs);
- vino_set_default_framerate(vcs);
-
- dprintk("vino_set_input(): %s\n", vino_inputs[vcs->input].name);
-
-out:
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- return ret;
-}
-
-static void vino_release_input(struct vino_channel_settings *vcs)
-{
- struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ?
- &vino_drvdata->b : &vino_drvdata->a;
- unsigned long flags;
-
- dprintk("vino_release_input():\n");
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- /* Release ownership of the channel
- * and if the other channel takes input from
- * the same source, transfer the ownership */
- if (vino_drvdata->camera_owner == vcs->channel) {
- if (vcs2->input == VINO_INPUT_D1) {
- vino_drvdata->camera_owner = vcs2->channel;
- } else {
- vino_drvdata->camera_owner = VINO_NO_CHANNEL;
- }
- } else if (vino_drvdata->decoder_owner == vcs->channel) {
- if ((vcs2->input == VINO_INPUT_COMPOSITE) ||
- (vcs2->input == VINO_INPUT_SVIDEO)) {
- vino_drvdata->decoder_owner = vcs2->channel;
- } else {
- vino_drvdata->decoder_owner = VINO_NO_CHANNEL;
- }
- }
- vcs->input = VINO_INPUT_NONE;
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-}
-
-/* execute with input_lock locked */
-static int vino_set_data_norm(struct vino_channel_settings *vcs,
- unsigned int data_norm,
- unsigned long *flags)
-{
- int err = 0;
-
- if (data_norm == vcs->data_norm)
- return 0;
-
- switch (vcs->input) {
- case VINO_INPUT_D1:
- /* only one "norm" supported */
- if (data_norm != VINO_DATA_NORM_D1)
- return -EINVAL;
- break;
- case VINO_INPUT_COMPOSITE:
- case VINO_INPUT_SVIDEO: {
- v4l2_std_id norm;
-
- if ((data_norm != VINO_DATA_NORM_PAL)
- && (data_norm != VINO_DATA_NORM_NTSC)
- && (data_norm != VINO_DATA_NORM_SECAM))
- return -EINVAL;
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, *flags);
-
- /* Don't hold spinlocks while setting norm
- * as it may take a while... */
-
- norm = vino_data_norms[data_norm].std;
- err = decoder_call(video, s_std, norm);
-
- spin_lock_irqsave(&vino_drvdata->input_lock, *flags);
-
- if (err)
- goto out;
-
- vcs->data_norm = data_norm;
-
- vino_set_default_clipping(vcs);
- vino_set_default_scaling(vcs);
- vino_set_default_framerate(vcs);
- break;
- }
- default:
- return -EINVAL;
- }
-
-out:
- return err;
-}
-
-/* V4L2 helper functions */
-
-static int vino_find_data_format(__u32 pixelformat)
-{
- int i;
-
- for (i = 0; i < VINO_DATA_FMT_COUNT; i++) {
- if (vino_data_formats[i].pixelformat == pixelformat)
- return i;
- }
-
- return VINO_DATA_FMT_NONE;
-}
-
-static int vino_int_enum_input(struct vino_channel_settings *vcs, __u32 index)
-{
- int input = VINO_INPUT_NONE;
- unsigned long flags;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
- if (vino_drvdata->decoder && vino_drvdata->camera) {
- switch (index) {
- case 0:
- input = VINO_INPUT_COMPOSITE;
- break;
- case 1:
- input = VINO_INPUT_SVIDEO;
- break;
- case 2:
- input = VINO_INPUT_D1;
- break;
- }
- } else if (vino_drvdata->decoder) {
- switch (index) {
- case 0:
- input = VINO_INPUT_COMPOSITE;
- break;
- case 1:
- input = VINO_INPUT_SVIDEO;
- break;
- }
- } else if (vino_drvdata->camera) {
- switch (index) {
- case 0:
- input = VINO_INPUT_D1;
- break;
- }
- }
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- return input;
-}
-
-/* execute with input_lock locked */
-static __u32 vino_find_input_index(struct vino_channel_settings *vcs)
-{
- __u32 index = 0;
- // FIXME: detect when no inputs available
-
- if (vino_drvdata->decoder && vino_drvdata->camera) {
- switch (vcs->input) {
- case VINO_INPUT_COMPOSITE:
- index = 0;
- break;
- case VINO_INPUT_SVIDEO:
- index = 1;
- break;
- case VINO_INPUT_D1:
- index = 2;
- break;
- }
- } else if (vino_drvdata->decoder) {
- switch (vcs->input) {
- case VINO_INPUT_COMPOSITE:
- index = 0;
- break;
- case VINO_INPUT_SVIDEO:
- index = 1;
- break;
- }
- } else if (vino_drvdata->camera) {
- switch (vcs->input) {
- case VINO_INPUT_D1:
- index = 0;
- break;
- }
- }
-
- return index;
-}
-
-/* V4L2 ioctls */
-
-static int vino_querycap(struct file *file, void *__fh,
- struct v4l2_capability *cap)
-{
- memset(cap, 0, sizeof(struct v4l2_capability));
-
- strcpy(cap->driver, vino_driver_name);
- strcpy(cap->card, vino_driver_description);
- strcpy(cap->bus_info, vino_bus_name);
- cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
- cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
- return 0;
-}
-
-static int vino_enum_input(struct file *file, void *__fh,
- struct v4l2_input *i)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- __u32 index = i->index;
- int input;
- dprintk("requested index = %d\n", index);
-
- input = vino_int_enum_input(vcs, index);
- if (input == VINO_INPUT_NONE)
- return -EINVAL;
-
- i->type = V4L2_INPUT_TYPE_CAMERA;
- i->std = vino_inputs[input].std;
- strcpy(i->name, vino_inputs[input].name);
-
- if (input == VINO_INPUT_COMPOSITE || input == VINO_INPUT_SVIDEO)
- decoder_call(video, g_input_status, &i->status);
- return 0;
-}
-
-static int vino_g_input(struct file *file, void *__fh,
- unsigned int *i)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- __u32 index;
- int input;
- unsigned long flags;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
- input = vcs->input;
- index = vino_find_input_index(vcs);
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- dprintk("input = %d\n", input);
-
- if (input == VINO_INPUT_NONE) {
- return -EINVAL;
- }
-
- *i = index;
-
- return 0;
-}
-
-static int vino_s_input(struct file *file, void *__fh,
- unsigned int i)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- int input;
- dprintk("requested input = %d\n", i);
-
- input = vino_int_enum_input(vcs, i);
- if (input == VINO_INPUT_NONE)
- return -EINVAL;
-
- return vino_set_input(vcs, input);
-}
-
-static int vino_querystd(struct file *file, void *__fh,
- v4l2_std_id *std)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned long flags;
- int err = 0;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- switch (vcs->input) {
- case VINO_INPUT_D1:
- *std = vino_inputs[vcs->input].std;
- break;
- case VINO_INPUT_COMPOSITE:
- case VINO_INPUT_SVIDEO: {
- decoder_call(video, querystd, std);
- break;
- }
- default:
- err = -EINVAL;
- }
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- return err;
-}
-
-static int vino_g_std(struct file *file, void *__fh,
- v4l2_std_id *std)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned long flags;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- *std = vino_data_norms[vcs->data_norm].std;
- dprintk("current standard = %d\n", vcs->data_norm);
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- return 0;
-}
-
-static int vino_s_std(struct file *file, void *__fh,
- v4l2_std_id std)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned long flags;
- int ret = 0;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- if (!vino_is_input_owner(vcs)) {
- ret = -EBUSY;
- goto out;
- }
-
- /* check if the standard is valid for the current input */
- if (std & vino_inputs[vcs->input].std) {
- dprintk("standard accepted\n");
-
- /* change the video norm for SAA7191
- * and accept NTSC for D1 (do nothing) */
-
- if (vcs->input == VINO_INPUT_D1)
- goto out;
-
- if (std & V4L2_STD_PAL) {
- ret = vino_set_data_norm(vcs, VINO_DATA_NORM_PAL,
- &flags);
- } else if (std & V4L2_STD_NTSC) {
- ret = vino_set_data_norm(vcs, VINO_DATA_NORM_NTSC,
- &flags);
- } else if (std & V4L2_STD_SECAM) {
- ret = vino_set_data_norm(vcs, VINO_DATA_NORM_SECAM,
- &flags);
- } else {
- ret = -EINVAL;
- }
-
- if (ret) {
- ret = -EINVAL;
- }
- } else {
- ret = -EINVAL;
- }
-
-out:
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- return ret;
-}
-
-static int vino_enum_fmt_vid_cap(struct file *file, void *__fh,
- struct v4l2_fmtdesc *fd)
-{
- dprintk("format index = %d\n", fd->index);
-
- if (fd->index >= VINO_DATA_FMT_COUNT)
- return -EINVAL;
- dprintk("format name = %s\n", vino_data_formats[fd->index].description);
-
- fd->pixelformat = vino_data_formats[fd->index].pixelformat;
- strcpy(fd->description, vino_data_formats[fd->index].description);
- return 0;
-}
-
-static int vino_try_fmt_vid_cap(struct file *file, void *__fh,
- struct v4l2_format *f)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- struct vino_channel_settings tempvcs;
- unsigned long flags;
- struct v4l2_pix_format *pf = &f->fmt.pix;
-
- dprintk("requested: w = %d, h = %d\n",
- pf->width, pf->height);
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
- memcpy(&tempvcs, vcs, sizeof(struct vino_channel_settings));
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- tempvcs.data_format = vino_find_data_format(pf->pixelformat);
- if (tempvcs.data_format == VINO_DATA_FMT_NONE) {
- tempvcs.data_format = VINO_DATA_FMT_GREY;
- pf->pixelformat =
- vino_data_formats[tempvcs.data_format].
- pixelformat;
- }
-
- /* data format must be set before clipping/scaling */
- vino_set_scaling(&tempvcs, pf->width, pf->height);
-
- dprintk("data format = %s\n",
- vino_data_formats[tempvcs.data_format].description);
-
- pf->width = (tempvcs.clipping.right - tempvcs.clipping.left) /
- tempvcs.decimation;
- pf->height = (tempvcs.clipping.bottom - tempvcs.clipping.top) /
- tempvcs.decimation;
-
- pf->field = V4L2_FIELD_INTERLACED;
- pf->bytesperline = tempvcs.line_size;
- pf->sizeimage = tempvcs.line_size *
- (tempvcs.clipping.bottom - tempvcs.clipping.top) /
- tempvcs.decimation;
- pf->colorspace =
- vino_data_formats[tempvcs.data_format].colorspace;
-
- return 0;
-}
-
-static int vino_g_fmt_vid_cap(struct file *file, void *__fh,
- struct v4l2_format *f)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned long flags;
- struct v4l2_pix_format *pf = &f->fmt.pix;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- pf->width = (vcs->clipping.right - vcs->clipping.left) /
- vcs->decimation;
- pf->height = (vcs->clipping.bottom - vcs->clipping.top) /
- vcs->decimation;
- pf->pixelformat =
- vino_data_formats[vcs->data_format].pixelformat;
-
- pf->field = V4L2_FIELD_INTERLACED;
- pf->bytesperline = vcs->line_size;
- pf->sizeimage = vcs->line_size *
- (vcs->clipping.bottom - vcs->clipping.top) /
- vcs->decimation;
- pf->colorspace =
- vino_data_formats[vcs->data_format].colorspace;
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
- return 0;
-}
-
-static int vino_s_fmt_vid_cap(struct file *file, void *__fh,
- struct v4l2_format *f)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- int data_format;
- unsigned long flags;
- struct v4l2_pix_format *pf = &f->fmt.pix;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- data_format = vino_find_data_format(pf->pixelformat);
-
- if (data_format == VINO_DATA_FMT_NONE) {
- vcs->data_format = VINO_DATA_FMT_GREY;
- pf->pixelformat =
- vino_data_formats[vcs->data_format].
- pixelformat;
- } else {
- vcs->data_format = data_format;
- }
-
- /* data format must be set before clipping/scaling */
- vino_set_scaling(vcs, pf->width, pf->height);
-
- dprintk("data format = %s\n",
- vino_data_formats[vcs->data_format].description);
-
- pf->width = vcs->clipping.right - vcs->clipping.left;
- pf->height = vcs->clipping.bottom - vcs->clipping.top;
-
- pf->field = V4L2_FIELD_INTERLACED;
- pf->bytesperline = vcs->line_size;
- pf->sizeimage = vcs->line_size *
- (vcs->clipping.bottom - vcs->clipping.top) /
- vcs->decimation;
- pf->colorspace =
- vino_data_formats[vcs->data_format].colorspace;
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
- return 0;
-}
-
-static int vino_cropcap(struct file *file, void *__fh,
- struct v4l2_cropcap *ccap)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- const struct vino_data_norm *norm;
- unsigned long flags;
-
- switch (ccap->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- norm = &vino_data_norms[vcs->data_norm];
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- ccap->bounds.left = 0;
- ccap->bounds.top = 0;
- ccap->bounds.width = norm->width;
- ccap->bounds.height = norm->height;
- memcpy(&ccap->defrect, &ccap->bounds,
- sizeof(struct v4l2_rect));
-
- ccap->pixelaspect.numerator = 1;
- ccap->pixelaspect.denominator = 1;
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int vino_g_crop(struct file *file, void *__fh,
- struct v4l2_crop *c)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned long flags;
-
- switch (c->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- c->c.left = vcs->clipping.left;
- c->c.top = vcs->clipping.top;
- c->c.width = vcs->clipping.right - vcs->clipping.left;
- c->c.height = vcs->clipping.bottom - vcs->clipping.top;
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int vino_s_crop(struct file *file, void *__fh,
- const struct v4l2_crop *c)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned long flags;
-
- switch (c->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- vino_set_clipping(vcs, c->c.left, c->c.top,
- c->c.width, c->c.height);
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
- break;
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int vino_g_parm(struct file *file, void *__fh,
- struct v4l2_streamparm *sp)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned long flags;
- struct v4l2_captureparm *cp = &sp->parm.capture;
-
- cp->capability = V4L2_CAP_TIMEPERFRAME;
- cp->timeperframe.numerator = 1;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- cp->timeperframe.denominator = vcs->fps;
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- /* TODO: cp->readbuffers = xxx; */
-
- return 0;
-}
-
-static int vino_s_parm(struct file *file, void *__fh,
- struct v4l2_streamparm *sp)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned long flags;
- struct v4l2_captureparm *cp = &sp->parm.capture;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- if ((cp->timeperframe.numerator == 0) ||
- (cp->timeperframe.denominator == 0)) {
- /* reset framerate */
- vino_set_default_framerate(vcs);
- } else {
- vino_set_framerate(vcs, cp->timeperframe.denominator /
- cp->timeperframe.numerator);
- }
-
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- return 0;
-}
-
-static int vino_reqbufs(struct file *file, void *__fh,
- struct v4l2_requestbuffers *rb)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
-
- if (vcs->reading)
- return -EBUSY;
-
- /* TODO: check queue type */
- if (rb->memory != V4L2_MEMORY_MMAP) {
- dprintk("type not mmap\n");
- return -EINVAL;
- }
-
- dprintk("count = %d\n", rb->count);
- if (rb->count > 0) {
- if (vino_is_capturing(vcs)) {
- dprintk("busy, capturing\n");
- return -EBUSY;
- }
-
- if (vino_queue_has_mapped_buffers(&vcs->fb_queue)) {
- dprintk("busy, buffers still mapped\n");
- return -EBUSY;
- } else {
- vcs->streaming = 0;
- vino_queue_free(&vcs->fb_queue);
- vino_queue_init(&vcs->fb_queue, &rb->count);
- }
- } else {
- vcs->streaming = 0;
- vino_capture_stop(vcs);
- vino_queue_free(&vcs->fb_queue);
- }
-
- return 0;
-}
-
-static void vino_v4l2_get_buffer_status(struct vino_channel_settings *vcs,
- struct vino_framebuffer *fb,
- struct v4l2_buffer *b)
-{
- if (vino_queue_outgoing_contains(&vcs->fb_queue,
- fb->id)) {
- b->flags &= ~V4L2_BUF_FLAG_QUEUED;
- b->flags |= V4L2_BUF_FLAG_DONE;
- } else if (vino_queue_incoming_contains(&vcs->fb_queue,
- fb->id)) {
- b->flags &= ~V4L2_BUF_FLAG_DONE;
- b->flags |= V4L2_BUF_FLAG_QUEUED;
- } else {
- b->flags &= ~(V4L2_BUF_FLAG_DONE |
- V4L2_BUF_FLAG_QUEUED);
- }
-
- b->flags &= ~(V4L2_BUF_FLAG_TIMECODE);
-
- if (fb->map_count > 0)
- b->flags |= V4L2_BUF_FLAG_MAPPED;
-
- b->flags &= ~V4L2_BUF_FLAG_TIMESTAMP_MASK;
- b->flags |= V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
-
- b->index = fb->id;
- b->memory = (vcs->fb_queue.type == VINO_MEMORY_MMAP) ?
- V4L2_MEMORY_MMAP : V4L2_MEMORY_USERPTR;
- b->m.offset = fb->offset;
- b->bytesused = fb->data_size;
- b->length = fb->size;
- b->field = V4L2_FIELD_INTERLACED;
- b->sequence = fb->frame_counter;
- memcpy(&b->timestamp, &fb->timestamp,
- sizeof(struct timeval));
- // b->input ?
-
- dprintk("buffer %d: length = %d, bytesused = %d, offset = %d\n",
- fb->id, fb->size, fb->data_size, fb->offset);
-}
-
-static int vino_querybuf(struct file *file, void *__fh,
- struct v4l2_buffer *b)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- struct vino_framebuffer *fb;
-
- if (vcs->reading)
- return -EBUSY;
-
- /* TODO: check queue type */
- if (b->index >= vino_queue_get_length(&vcs->fb_queue)) {
- dprintk("invalid index = %d\n",
- b->index);
- return -EINVAL;
- }
-
- fb = vino_queue_get_buffer(&vcs->fb_queue,
- b->index);
- if (fb == NULL) {
- dprintk("vino_queue_get_buffer() failed");
- return -EINVAL;
- }
-
- vino_v4l2_get_buffer_status(vcs, fb, b);
-
- return 0;
-}
-
-static int vino_qbuf(struct file *file, void *__fh,
- struct v4l2_buffer *b)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- struct vino_framebuffer *fb;
- int ret;
-
- if (vcs->reading)
- return -EBUSY;
-
- /* TODO: check queue type */
- if (b->memory != V4L2_MEMORY_MMAP) {
- dprintk("type not mmap\n");
- return -EINVAL;
- }
-
- fb = vino_capture_enqueue(vcs, b->index);
- if (fb == NULL)
- return -EINVAL;
-
- vino_v4l2_get_buffer_status(vcs, fb, b);
-
- if (vcs->streaming) {
- ret = vino_capture_next(vcs, 1);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
-static int vino_dqbuf(struct file *file, void *__fh,
- struct v4l2_buffer *b)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned int nonblocking = file->f_flags & O_NONBLOCK;
- struct vino_framebuffer *fb;
- unsigned int incoming, outgoing;
- int err;
-
- if (vcs->reading)
- return -EBUSY;
-
- /* TODO: check queue type */
-
- err = vino_queue_get_incoming(&vcs->fb_queue, &incoming);
- if (err) {
- dprintk("vino_queue_get_incoming() failed\n");
- return -EINVAL;
- }
- err = vino_queue_get_outgoing(&vcs->fb_queue, &outgoing);
- if (err) {
- dprintk("vino_queue_get_outgoing() failed\n");
- return -EINVAL;
- }
-
- dprintk("incoming = %d, outgoing = %d\n", incoming, outgoing);
-
- if (outgoing == 0) {
- if (incoming == 0) {
- dprintk("no incoming or outgoing buffers\n");
- return -EINVAL;
- }
- if (nonblocking) {
- dprintk("non-blocking I/O was selected and "
- "there are no buffers to dequeue\n");
- return -EAGAIN;
- }
-
- err = vino_wait_for_frame(vcs);
- if (err) {
- err = vino_wait_for_frame(vcs);
- if (err) {
- /* interrupted or no frames captured because of
- * frame skipping */
- /* vino_capture_failed(vcs); */
- return -EIO;
- }
- }
- }
-
- fb = vino_queue_remove(&vcs->fb_queue, &b->index);
- if (fb == NULL) {
- dprintk("vino_queue_remove() failed\n");
- return -EINVAL;
- }
-
- err = vino_check_buffer(vcs, fb);
-
- vino_v4l2_get_buffer_status(vcs, fb, b);
-
- if (err)
- return -EIO;
-
- return 0;
-}
-
-static int vino_streamon(struct file *file, void *__fh,
- enum v4l2_buf_type i)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned int incoming;
- int ret;
- if (vcs->reading)
- return -EBUSY;
-
- if (vcs->streaming)
- return 0;
-
- // TODO: check queue type
-
- if (vino_queue_get_length(&vcs->fb_queue) < 1) {
- dprintk("no buffers allocated\n");
- return -EINVAL;
- }
-
- ret = vino_queue_get_incoming(&vcs->fb_queue, &incoming);
- if (ret) {
- dprintk("vino_queue_get_incoming() failed\n");
- return -EINVAL;
- }
-
- vcs->streaming = 1;
-
- if (incoming > 0) {
- ret = vino_capture_next(vcs, 1);
- if (ret) {
- vcs->streaming = 0;
-
- dprintk("couldn't start capture\n");
- return -EINVAL;
- }
- }
-
- return 0;
-}
-
-static int vino_streamoff(struct file *file, void *__fh,
- enum v4l2_buf_type i)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- if (vcs->reading)
- return -EBUSY;
-
- if (!vcs->streaming)
- return 0;
-
- vcs->streaming = 0;
- vino_capture_stop(vcs);
-
- return 0;
-}
-
-static int vino_queryctrl(struct file *file, void *__fh,
- struct v4l2_queryctrl *queryctrl)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned long flags;
- int i;
- int err = 0;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- switch (vcs->input) {
- case VINO_INPUT_D1:
- for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) {
- if (vino_indycam_v4l2_controls[i].id ==
- queryctrl->id) {
- memcpy(queryctrl,
- &vino_indycam_v4l2_controls[i],
- sizeof(struct v4l2_queryctrl));
- queryctrl->reserved[0] = 0;
- goto found;
- }
- }
-
- err = -EINVAL;
- break;
- case VINO_INPUT_COMPOSITE:
- case VINO_INPUT_SVIDEO:
- for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) {
- if (vino_saa7191_v4l2_controls[i].id ==
- queryctrl->id) {
- memcpy(queryctrl,
- &vino_saa7191_v4l2_controls[i],
- sizeof(struct v4l2_queryctrl));
- queryctrl->reserved[0] = 0;
- goto found;
- }
- }
-
- err = -EINVAL;
- break;
- default:
- err = -EINVAL;
- }
-
- found:
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- return err;
-}
-
-static int vino_g_ctrl(struct file *file, void *__fh,
- struct v4l2_control *control)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned long flags;
- int i;
- int err = 0;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- switch (vcs->input) {
- case VINO_INPUT_D1: {
- err = -EINVAL;
- for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) {
- if (vino_indycam_v4l2_controls[i].id == control->id) {
- err = 0;
- break;
- }
- }
-
- if (err)
- goto out;
-
- err = camera_call(core, g_ctrl, control);
- if (err)
- err = -EINVAL;
- break;
- }
- case VINO_INPUT_COMPOSITE:
- case VINO_INPUT_SVIDEO: {
- err = -EINVAL;
- for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) {
- if (vino_saa7191_v4l2_controls[i].id == control->id) {
- err = 0;
- break;
- }
- }
-
- if (err)
- goto out;
-
- err = decoder_call(core, g_ctrl, control);
- if (err)
- err = -EINVAL;
- break;
- }
- default:
- err = -EINVAL;
- }
-
-out:
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- return err;
-}
-
-static int vino_s_ctrl(struct file *file, void *__fh,
- struct v4l2_control *control)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned long flags;
- int i;
- int err = 0;
-
- spin_lock_irqsave(&vino_drvdata->input_lock, flags);
-
- if (!vino_is_input_owner(vcs)) {
- err = -EBUSY;
- goto out;
- }
-
- switch (vcs->input) {
- case VINO_INPUT_D1: {
- err = -EINVAL;
- for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) {
- if (vino_indycam_v4l2_controls[i].id == control->id) {
- err = 0;
- break;
- }
- }
- if (err)
- goto out;
- if (control->value < vino_indycam_v4l2_controls[i].minimum ||
- control->value > vino_indycam_v4l2_controls[i].maximum) {
- err = -ERANGE;
- goto out;
- }
- err = camera_call(core, s_ctrl, control);
- if (err)
- err = -EINVAL;
- break;
- }
- case VINO_INPUT_COMPOSITE:
- case VINO_INPUT_SVIDEO: {
- err = -EINVAL;
- for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) {
- if (vino_saa7191_v4l2_controls[i].id == control->id) {
- err = 0;
- break;
- }
- }
- if (err)
- goto out;
- if (control->value < vino_saa7191_v4l2_controls[i].minimum ||
- control->value > vino_saa7191_v4l2_controls[i].maximum) {
- err = -ERANGE;
- goto out;
- }
-
- err = decoder_call(core, s_ctrl, control);
- if (err)
- err = -EINVAL;
- break;
- }
- default:
- err = -EINVAL;
- }
-
-out:
- spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
-
- return err;
-}
-
-/* File operations */
-
-static int vino_open(struct file *file)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- int ret = 0;
- dprintk("open(): channel = %c\n",
- (vcs->channel == VINO_CHANNEL_A) ? 'A' : 'B');
-
- mutex_lock(&vcs->mutex);
-
- if (vcs->users) {
- dprintk("open(): driver busy\n");
- ret = -EBUSY;
- goto out;
- }
-
- ret = vino_acquire_input(vcs);
- if (ret) {
- dprintk("open(): vino_acquire_input() failed\n");
- goto out;
- }
-
- vcs->users++;
-
- out:
- mutex_unlock(&vcs->mutex);
-
- dprintk("open(): %s!\n", ret ? "failed" : "complete");
-
- return ret;
-}
-
-static int vino_close(struct file *file)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- dprintk("close():\n");
-
- mutex_lock(&vcs->mutex);
-
- vcs->users--;
-
- if (!vcs->users) {
- vino_release_input(vcs);
-
- /* stop DMA and free buffers */
- vino_capture_stop(vcs);
- vino_queue_free(&vcs->fb_queue);
- }
-
- mutex_unlock(&vcs->mutex);
-
- return 0;
-}
-
-static void vino_vm_open(struct vm_area_struct *vma)
-{
- struct vino_framebuffer *fb = vma->vm_private_data;
-
- fb->map_count++;
- dprintk("vino_vm_open(): count = %d\n", fb->map_count);
-}
-
-static void vino_vm_close(struct vm_area_struct *vma)
-{
- struct vino_framebuffer *fb = vma->vm_private_data;
-
- fb->map_count--;
- dprintk("vino_vm_close(): count = %d\n", fb->map_count);
-}
-
-static const struct vm_operations_struct vino_vm_ops = {
- .open = vino_vm_open,
- .close = vino_vm_close,
-};
-
-static int vino_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
-
- unsigned long start = vma->vm_start;
- unsigned long size = vma->vm_end - vma->vm_start;
- unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
-
- struct vino_framebuffer *fb = NULL;
- unsigned int i, length;
- int ret = 0;
-
- dprintk("mmap():\n");
-
- // TODO: reject mmap if already mapped
-
- if (mutex_lock_interruptible(&vcs->mutex))
- return -EINTR;
-
- if (vcs->reading) {
- ret = -EBUSY;
- goto out;
- }
-
- // TODO: check queue type
-
- if (!(vma->vm_flags & VM_WRITE)) {
- dprintk("mmap(): app bug: PROT_WRITE please\n");
- ret = -EINVAL;
- goto out;
- }
- if (!(vma->vm_flags & VM_SHARED)) {
- dprintk("mmap(): app bug: MAP_SHARED please\n");
- ret = -EINVAL;
- goto out;
- }
-
- /* find the correct buffer using offset */
- length = vino_queue_get_length(&vcs->fb_queue);
- if (length == 0) {
- dprintk("mmap(): queue not initialized\n");
- ret = -EINVAL;
- goto out;
- }
-
- for (i = 0; i < length; i++) {
- fb = vino_queue_get_buffer(&vcs->fb_queue, i);
- if (fb == NULL) {
- dprintk("mmap(): vino_queue_get_buffer() failed\n");
- ret = -EINVAL;
- goto out;
- }
-
- if (fb->offset == offset)
- goto found;
- }
-
- dprintk("mmap(): invalid offset = %lu\n", offset);
- ret = -EINVAL;
- goto out;
-
-found:
- dprintk("mmap(): buffer = %d\n", i);
-
- if (size > (fb->desc_table.page_count * PAGE_SIZE)) {
- dprintk("mmap(): failed: size = %lu > %lu\n",
- size, fb->desc_table.page_count * PAGE_SIZE);
- ret = -EINVAL;
- goto out;
- }
-
- for (i = 0; i < fb->desc_table.page_count; i++) {
- unsigned long pfn =
- virt_to_phys((void *)fb->desc_table.virtual[i]) >>
- PAGE_SHIFT;
-
- if (size < PAGE_SIZE)
- break;
-
- // protection was: PAGE_READONLY
- if (remap_pfn_range(vma, start, pfn, PAGE_SIZE,
- vma->vm_page_prot)) {
- dprintk("mmap(): remap_pfn_range() failed\n");
- ret = -EAGAIN;
- goto out;
- }
-
- start += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
-
- fb->map_count = 1;
-
- vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
- vma->vm_flags &= ~VM_IO;
- vma->vm_private_data = fb;
- vma->vm_file = file;
- vma->vm_ops = &vino_vm_ops;
-
-out:
- mutex_unlock(&vcs->mutex);
-
- return ret;
-}
-
-static unsigned int vino_poll(struct file *file, poll_table *pt)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- unsigned int outgoing;
- unsigned int ret = 0;
-
- // lock mutex (?)
- // TODO: this has to be corrected for different read modes
-
- dprintk("poll():\n");
-
- if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
- dprintk("poll(): vino_queue_get_outgoing() failed\n");
- ret = POLLERR;
- goto error;
- }
- if (outgoing > 0)
- goto over;
-
- poll_wait(file, &vcs->fb_queue.frame_wait_queue, pt);
-
- if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
- dprintk("poll(): vino_queue_get_outgoing() failed\n");
- ret = POLLERR;
- goto error;
- }
-
-over:
- dprintk("poll(): data %savailable\n",
- (outgoing > 0) ? "" : "not ");
-
- if (outgoing > 0)
- ret = POLLIN | POLLRDNORM;
-
-error:
- return ret;
-}
-
-static long vino_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct vino_channel_settings *vcs = video_drvdata(file);
- long ret;
-
- if (mutex_lock_interruptible(&vcs->mutex))
- return -EINTR;
-
- ret = video_ioctl2(file, cmd, arg);
-
- mutex_unlock(&vcs->mutex);
-
- return ret;
-}
-
-/* Initialization and cleanup */
-
-/* __initdata */
-static int vino_init_stage;
-
-const struct v4l2_ioctl_ops vino_ioctl_ops = {
- .vidioc_enum_fmt_vid_cap = vino_enum_fmt_vid_cap,
- .vidioc_g_fmt_vid_cap = vino_g_fmt_vid_cap,
- .vidioc_s_fmt_vid_cap = vino_s_fmt_vid_cap,
- .vidioc_try_fmt_vid_cap = vino_try_fmt_vid_cap,
- .vidioc_querycap = vino_querycap,
- .vidioc_enum_input = vino_enum_input,
- .vidioc_g_input = vino_g_input,
- .vidioc_s_input = vino_s_input,
- .vidioc_g_std = vino_g_std,
- .vidioc_s_std = vino_s_std,
- .vidioc_querystd = vino_querystd,
- .vidioc_cropcap = vino_cropcap,
- .vidioc_s_crop = vino_s_crop,
- .vidioc_g_crop = vino_g_crop,
- .vidioc_s_parm = vino_s_parm,
- .vidioc_g_parm = vino_g_parm,
- .vidioc_reqbufs = vino_reqbufs,
- .vidioc_querybuf = vino_querybuf,
- .vidioc_qbuf = vino_qbuf,
- .vidioc_dqbuf = vino_dqbuf,
- .vidioc_streamon = vino_streamon,
- .vidioc_streamoff = vino_streamoff,
- .vidioc_queryctrl = vino_queryctrl,
- .vidioc_g_ctrl = vino_g_ctrl,
- .vidioc_s_ctrl = vino_s_ctrl,
-};
-
-static const struct v4l2_file_operations vino_fops = {
- .owner = THIS_MODULE,
- .open = vino_open,
- .release = vino_close,
- .unlocked_ioctl = vino_ioctl,
- .mmap = vino_mmap,
- .poll = vino_poll,
-};
-
-static struct video_device vdev_template = {
- .name = "NOT SET",
- .fops = &vino_fops,
- .ioctl_ops = &vino_ioctl_ops,
- .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
-};
-
-static void vino_module_cleanup(int stage)
-{
- switch(stage) {
- case 11:
- video_unregister_device(vino_drvdata->b.vdev);
- vino_drvdata->b.vdev = NULL;
- case 10:
- video_unregister_device(vino_drvdata->a.vdev);
- vino_drvdata->a.vdev = NULL;
- case 9:
- i2c_del_adapter(&vino_i2c_adapter);
- case 8:
- free_irq(SGI_VINO_IRQ, NULL);
- case 7:
- if (vino_drvdata->b.vdev) {
- video_device_release(vino_drvdata->b.vdev);
- vino_drvdata->b.vdev = NULL;
- }
- case 6:
- if (vino_drvdata->a.vdev) {
- video_device_release(vino_drvdata->a.vdev);
- vino_drvdata->a.vdev = NULL;
- }
- case 5:
- /* all entries in dma_cpu dummy table have the same address */
- dma_unmap_single(NULL,
- vino_drvdata->dummy_desc_table.dma_cpu[0],
- PAGE_SIZE, DMA_FROM_DEVICE);
- dma_free_coherent(NULL, VINO_DUMMY_DESC_COUNT
- * sizeof(dma_addr_t),
- (void *)vino_drvdata->
- dummy_desc_table.dma_cpu,
- vino_drvdata->dummy_desc_table.dma);
- case 4:
- free_page(vino_drvdata->dummy_page);
- case 3:
- v4l2_device_unregister(&vino_drvdata->v4l2_dev);
- case 2:
- kfree(vino_drvdata);
- case 1:
- iounmap(vino);
- case 0:
- break;
- default:
- dprintk("vino_module_cleanup(): invalid cleanup stage = %d\n",
- stage);
- }
-}
-
-static int vino_probe(void)
-{
- unsigned long rev_id;
-
- if (ip22_is_fullhouse()) {
- printk(KERN_ERR "VINO doesn't exist in IP22 Fullhouse\n");
- return -ENODEV;
- }
-
- if (!(sgimc->systemid & SGIMC_SYSID_EPRESENT)) {
- printk(KERN_ERR "VINO is not found (EISA BUS not present)\n");
- return -ENODEV;
- }
-
- vino = (struct sgi_vino *)ioremap(VINO_BASE, sizeof(struct sgi_vino));
- if (!vino) {
- printk(KERN_ERR "VINO: ioremap() failed\n");
- return -EIO;
- }
- vino_init_stage++;
-
- if (get_dbe(rev_id, &(vino->rev_id))) {
- printk(KERN_ERR "Failed to read VINO revision register\n");
- vino_module_cleanup(vino_init_stage);
- return -ENODEV;
- }
-
- if (VINO_ID_VALUE(rev_id) != VINO_CHIP_ID) {
- printk(KERN_ERR "Unknown VINO chip ID (Rev/ID: 0x%02lx)\n",
- rev_id);
- vino_module_cleanup(vino_init_stage);
- return -ENODEV;
- }
-
- printk(KERN_INFO "VINO revision %ld found\n", VINO_REV_NUM(rev_id));
-
- return 0;
-}
-
-static int vino_init(void)
-{
- dma_addr_t dma_dummy_address;
- int err;
- int i;
-
- vino_drvdata = kzalloc(sizeof(struct vino_settings), GFP_KERNEL);
- if (!vino_drvdata) {
- vino_module_cleanup(vino_init_stage);
- return -ENOMEM;
- }
- vino_init_stage++;
- strlcpy(vino_drvdata->v4l2_dev.name, "vino",
- sizeof(vino_drvdata->v4l2_dev.name));
- err = v4l2_device_register(NULL, &vino_drvdata->v4l2_dev);
- if (err)
- return err;
- vino_init_stage++;
-
- /* create a dummy dma descriptor */
- vino_drvdata->dummy_page = get_zeroed_page(GFP_KERNEL | GFP_DMA);
- if (!vino_drvdata->dummy_page) {
- vino_module_cleanup(vino_init_stage);
- return -ENOMEM;
- }
- vino_init_stage++;
-
- // TODO: use page_count in dummy_desc_table
-
- vino_drvdata->dummy_desc_table.dma_cpu =
- dma_alloc_coherent(NULL,
- VINO_DUMMY_DESC_COUNT * sizeof(dma_addr_t),
- &vino_drvdata->dummy_desc_table.dma,
- GFP_KERNEL | GFP_DMA);
- if (!vino_drvdata->dummy_desc_table.dma_cpu) {
- vino_module_cleanup(vino_init_stage);
- return -ENOMEM;
- }
- vino_init_stage++;
-
- dma_dummy_address = dma_map_single(NULL,
- (void *)vino_drvdata->dummy_page,
- PAGE_SIZE, DMA_FROM_DEVICE);
- for (i = 0; i < VINO_DUMMY_DESC_COUNT; i++) {
- vino_drvdata->dummy_desc_table.dma_cpu[i] = dma_dummy_address;
- }
-
- /* initialize VINO */
-
- vino->control = 0;
- vino->a.next_4_desc = vino_drvdata->dummy_desc_table.dma;
- vino->b.next_4_desc = vino_drvdata->dummy_desc_table.dma;
- udelay(VINO_DESC_FETCH_DELAY);
-
- vino->intr_status = 0;
-
- vino->a.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT;
- vino->b.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT;
-
- return 0;
-}
-
-static int vino_init_channel_settings(struct vino_channel_settings *vcs,
- unsigned int channel, const char *name)
-{
- vcs->channel = channel;
- vcs->input = VINO_INPUT_NONE;
- vcs->alpha = 0;
- vcs->users = 0;
- vcs->data_format = VINO_DATA_FMT_GREY;
- vcs->data_norm = VINO_DATA_NORM_NTSC;
- vcs->decimation = 1;
- vino_set_default_clipping(vcs);
- vino_set_default_framerate(vcs);
-
- vcs->capturing = 0;
-
- mutex_init(&vcs->mutex);
- spin_lock_init(&vcs->capture_lock);
-
- mutex_init(&vcs->fb_queue.queue_mutex);
- spin_lock_init(&vcs->fb_queue.queue_lock);
- init_waitqueue_head(&vcs->fb_queue.frame_wait_queue);
-
- vcs->vdev = video_device_alloc();
- if (!vcs->vdev) {
- vino_module_cleanup(vino_init_stage);
- return -ENOMEM;
- }
- vino_init_stage++;
-
- memcpy(vcs->vdev, &vdev_template,
- sizeof(struct video_device));
- strcpy(vcs->vdev->name, name);
- vcs->vdev->release = video_device_release;
- vcs->vdev->v4l2_dev = &vino_drvdata->v4l2_dev;
-
- video_set_drvdata(vcs->vdev, vcs);
-
- return 0;
-}
-
-static int __init vino_module_init(void)
-{
- int ret;
-
- printk(KERN_INFO "SGI VINO driver version %s\n",
- VINO_MODULE_VERSION);
-
- ret = vino_probe();
- if (ret)
- return ret;
-
- ret = vino_init();
- if (ret)
- return ret;
-
- /* initialize data structures */
-
- spin_lock_init(&vino_drvdata->vino_lock);
- spin_lock_init(&vino_drvdata->input_lock);
-
- ret = vino_init_channel_settings(&vino_drvdata->a, VINO_CHANNEL_A,
- vino_vdev_name_a);
- if (ret)
- return ret;
-
- ret = vino_init_channel_settings(&vino_drvdata->b, VINO_CHANNEL_B,
- vino_vdev_name_b);
- if (ret)
- return ret;
-
- /* initialize hardware and register V4L devices */
-
- ret = request_irq(SGI_VINO_IRQ, vino_interrupt, 0,
- vino_driver_description, NULL);
- if (ret) {
- printk(KERN_ERR "VINO: requesting IRQ %02d failed\n",
- SGI_VINO_IRQ);
- vino_module_cleanup(vino_init_stage);
- return -EAGAIN;
- }
- vino_init_stage++;
-
- ret = i2c_add_adapter(&vino_i2c_adapter);
- if (ret) {
- printk(KERN_ERR "VINO I2C bus registration failed\n");
- vino_module_cleanup(vino_init_stage);
- return ret;
- }
- i2c_set_adapdata(&vino_i2c_adapter, &vino_drvdata->v4l2_dev);
- vino_init_stage++;
-
- ret = video_register_device(vino_drvdata->a.vdev,
- VFL_TYPE_GRABBER, -1);
- if (ret < 0) {
- printk(KERN_ERR "VINO channel A Video4Linux-device "
- "registration failed\n");
- vino_module_cleanup(vino_init_stage);
- return -EINVAL;
- }
- vino_init_stage++;
-
- ret = video_register_device(vino_drvdata->b.vdev,
- VFL_TYPE_GRABBER, -1);
- if (ret < 0) {
- printk(KERN_ERR "VINO channel B Video4Linux-device "
- "registration failed\n");
- vino_module_cleanup(vino_init_stage);
- return -EINVAL;
- }
- vino_init_stage++;
-
- vino_drvdata->decoder =
- v4l2_i2c_new_subdev(&vino_drvdata->v4l2_dev, &vino_i2c_adapter,
- "saa7191", 0, I2C_ADDRS(0x45));
- vino_drvdata->camera =
- v4l2_i2c_new_subdev(&vino_drvdata->v4l2_dev, &vino_i2c_adapter,
- "indycam", 0, I2C_ADDRS(0x2b));
-
- dprintk("init complete!\n");
-
- return 0;
-}
-
-static void __exit vino_module_exit(void)
-{
- dprintk("exiting, stage = %d ...\n", vino_init_stage);
- vino_module_cleanup(vino_init_stage);
- dprintk("cleanup complete, exit!\n");
-}
-
-module_init(vino_module_init);
-module_exit(vino_module_exit);
+++ /dev/null
-/*
- * Driver for the VINO (Video In No Out) system found in SGI Indys.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License version 2 as published by the Free Software Foundation.
- *
- * Copyright (C) 1999 Ulf Karlsson <ulfc@bun.falkenberg.se>
- * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
- */
-
-#ifndef _VINO_H_
-#define _VINO_H_
-
-#define VINO_BASE 0x00080000 /* Vino is in the EISA address space,
- * but it is not an EISA bus card */
-#define VINO_PAGE_SIZE 4096
-
-struct sgi_vino_channel {
- u32 _pad_alpha;
- volatile u32 alpha;
-
-#define VINO_CLIP_X(x) ((x) & 0x3ff) /* bits 0:9 */
-#define VINO_CLIP_ODD(x) (((x) & 0x1ff) << 10) /* bits 10:18 */
-#define VINO_CLIP_EVEN(x) (((x) & 0x1ff) << 19) /* bits 19:27 */
- u32 _pad_clip_start;
- volatile u32 clip_start;
- u32 _pad_clip_end;
- volatile u32 clip_end;
-
-#define VINO_FRAMERT_FULL 0xfff
-#define VINO_FRAMERT_PAL (1<<0) /* 0=NTSC 1=PAL */
-#define VINO_FRAMERT_RT(x) (((x) & 0xfff) << 1) /* bits 1:12 */
- u32 _pad_frame_rate;
- volatile u32 frame_rate;
-
- u32 _pad_field_counter;
- volatile u32 field_counter;
- u32 _pad_line_size;
- volatile u32 line_size;
- u32 _pad_line_count;
- volatile u32 line_count;
- u32 _pad_page_index;
- volatile u32 page_index;
- u32 _pad_next_4_desc;
- volatile u32 next_4_desc;
- u32 _pad_start_desc_tbl;
- volatile u32 start_desc_tbl;
-
-#define VINO_DESC_JUMP (1<<30)
-#define VINO_DESC_STOP (1<<31)
-#define VINO_DESC_VALID (1<<32)
- u32 _pad_desc_0;
- volatile u32 desc_0;
- u32 _pad_desc_1;
- volatile u32 desc_1;
- u32 _pad_desc_2;
- volatile u32 desc_2;
- u32 _pad_Bdesc_3;
- volatile u32 desc_3;
-
- u32 _pad_fifo_thres;
- volatile u32 fifo_thres;
- u32 _pad_fifo_read;
- volatile u32 fifo_read;
- u32 _pad_fifo_write;
- volatile u32 fifo_write;
-};
-
-struct sgi_vino {
-#define VINO_CHIP_ID 0xb
-#define VINO_REV_NUM(x) ((x) & 0x0f)
-#define VINO_ID_VALUE(x) (((x) & 0xf0) >> 4)
- u32 _pad_rev_id;
- volatile u32 rev_id;
-
-#define VINO_CTRL_LITTLE_ENDIAN (1<<0)
-#define VINO_CTRL_A_EOF_INT (1<<1) /* Field transferred int */
-#define VINO_CTRL_A_FIFO_INT (1<<2) /* FIFO overflow int */
-#define VINO_CTRL_A_EOD_INT (1<<3) /* End of desc table int */
-#define VINO_CTRL_A_INT (VINO_CTRL_A_EOF_INT | \
- VINO_CTRL_A_FIFO_INT | \
- VINO_CTRL_A_EOD_INT)
-#define VINO_CTRL_B_EOF_INT (1<<4) /* Field transferred int */
-#define VINO_CTRL_B_FIFO_INT (1<<5) /* FIFO overflow int */
-#define VINO_CTRL_B_EOD_INT (1<<6) /* End of desc table int */
-#define VINO_CTRL_B_INT (VINO_CTRL_B_EOF_INT | \
- VINO_CTRL_B_FIFO_INT | \
- VINO_CTRL_B_EOD_INT)
-#define VINO_CTRL_A_DMA_ENBL (1<<7)
-#define VINO_CTRL_A_INTERLEAVE_ENBL (1<<8)
-#define VINO_CTRL_A_SYNC_ENBL (1<<9)
-#define VINO_CTRL_A_SELECT (1<<10) /* 1=D1 0=Philips */
-#define VINO_CTRL_A_RGB (1<<11) /* 1=RGB 0=YUV */
-#define VINO_CTRL_A_LUMA_ONLY (1<<12)
-#define VINO_CTRL_A_DEC_ENBL (1<<13) /* Decimation */
-#define VINO_CTRL_A_DEC_SCALE_MASK 0x1c000 /* bits 14:17 */
-#define VINO_CTRL_A_DEC_SCALE_SHIFT (14)
-#define VINO_CTRL_A_DEC_HOR_ONLY (1<<17) /* Horizontal only */
-#define VINO_CTRL_A_DITHER (1<<18) /* 24 -> 8 bit dither */
-#define VINO_CTRL_B_DMA_ENBL (1<<19)
-#define VINO_CTRL_B_INTERLEAVE_ENBL (1<<20)
-#define VINO_CTRL_B_SYNC_ENBL (1<<21)
-#define VINO_CTRL_B_SELECT (1<<22) /* 1=D1 0=Philips */
-#define VINO_CTRL_B_RGB (1<<23) /* 1=RGB 0=YUV */
-#define VINO_CTRL_B_LUMA_ONLY (1<<24)
-#define VINO_CTRL_B_DEC_ENBL (1<<25) /* Decimation */
-#define VINO_CTRL_B_DEC_SCALE_MASK 0x1c000000 /* bits 26:28 */
-#define VINO_CTRL_B_DEC_SCALE_SHIFT (26)
-#define VINO_CTRL_B_DEC_HOR_ONLY (1<<29) /* Decimation horizontal only */
-#define VINO_CTRL_B_DITHER (1<<30) /* ChanB 24 -> 8 bit dither */
- u32 _pad_control;
- volatile u32 control;
-
-#define VINO_INTSTAT_A_EOF (1<<0) /* Field transferred int */
-#define VINO_INTSTAT_A_FIFO (1<<1) /* FIFO overflow int */
-#define VINO_INTSTAT_A_EOD (1<<2) /* End of desc table int */
-#define VINO_INTSTAT_A (VINO_INTSTAT_A_EOF | \
- VINO_INTSTAT_A_FIFO | \
- VINO_INTSTAT_A_EOD)
-#define VINO_INTSTAT_B_EOF (1<<3) /* Field transferred int */
-#define VINO_INTSTAT_B_FIFO (1<<4) /* FIFO overflow int */
-#define VINO_INTSTAT_B_EOD (1<<5) /* End of desc table int */
-#define VINO_INTSTAT_B (VINO_INTSTAT_B_EOF | \
- VINO_INTSTAT_B_FIFO | \
- VINO_INTSTAT_B_EOD)
- u32 _pad_intr_status;
- volatile u32 intr_status;
-
- u32 _pad_i2c_control;
- volatile u32 i2c_control;
- u32 _pad_i2c_data;
- volatile u32 i2c_data;
-
- struct sgi_vino_channel a;
- struct sgi_vino_channel b;
-};
-
-#endif
source "drivers/staging/media/omap4iss/Kconfig"
+source "drivers/staging/media/vino/Kconfig"
+
# Keep LIRC at the end, as it has sub-menus
source "drivers/staging/media/lirc/Kconfig"
obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/
obj-$(CONFIG_DVB_MN88472) += mn88472/
obj-$(CONFIG_DVB_MN88473) += mn88473/
+obj-y += vino/
--- /dev/null
+config VIDEO_VINO
+ tristate "SGI Vino Video For Linux (Deprecated)"
+ depends on I2C && SGI_IP22 && VIDEO_V4L2
+ select VIDEO_SAA7191 if MEDIA_SUBDRV_AUTOSELECT
+ help
+ Say Y here to build in support for the Vino video input system found
+ on SGI Indy machines.
+
+ This driver is deprecated and will be removed soon. If you have
+ hardware for this and you want to work on this driver, then contact
+ the linux-media mailinglist.
+
+config VIDEO_SAA7191
+ tristate "Philips SAA7191 video decoder (Deprecated)"
+ depends on VIDEO_V4L2 && I2C
+ ---help---
+ Support for the Philips SAA7191 video decoder.
+
+ This driver is deprecated and will be removed soon. If you have
+ hardware for this and you want to work on this driver, then contact
+ the linux-media mailinglist.
+
+ To compile this driver as a module, choose M here: the
+ module will be called saa7191.
--- /dev/null
+obj-$(CONFIG_VIDEO_VINO) += indycam.o
+obj-$(CONFIG_VIDEO_VINO) += vino.o
+obj-$(CONFIG_VIDEO_SAA7191) += saa7191.o
--- /dev/null
+/*
+ * indycam.c - Silicon Graphics IndyCam digital camera driver
+ *
+ * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
+ * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
+ *
+ * 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/errno.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+
+/* IndyCam decodes stream of photons into digital image representation ;-) */
+#include <linux/videodev2.h>
+#include <linux/i2c.h>
+#include <media/v4l2-device.h>
+
+#include "indycam.h"
+
+#define INDYCAM_MODULE_VERSION "0.0.5"
+
+MODULE_DESCRIPTION("SGI IndyCam driver");
+MODULE_VERSION(INDYCAM_MODULE_VERSION);
+MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
+MODULE_LICENSE("GPL");
+
+
+// #define INDYCAM_DEBUG
+
+#ifdef INDYCAM_DEBUG
+#define dprintk(x...) printk("IndyCam: " x);
+#define indycam_regdump(client) indycam_regdump_debug(client)
+#else
+#define dprintk(x...)
+#define indycam_regdump(client)
+#endif
+
+struct indycam {
+ struct v4l2_subdev sd;
+ u8 version;
+};
+
+static inline struct indycam *to_indycam(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct indycam, sd);
+}
+
+static const u8 initseq[] = {
+ INDYCAM_CONTROL_AGCENA, /* INDYCAM_CONTROL */
+ INDYCAM_SHUTTER_60, /* INDYCAM_SHUTTER */
+ INDYCAM_GAIN_DEFAULT, /* INDYCAM_GAIN */
+ 0x00, /* INDYCAM_BRIGHTNESS (read-only) */
+ INDYCAM_RED_BALANCE_DEFAULT, /* INDYCAM_RED_BALANCE */
+ INDYCAM_BLUE_BALANCE_DEFAULT, /* INDYCAM_BLUE_BALANCE */
+ INDYCAM_RED_SATURATION_DEFAULT, /* INDYCAM_RED_SATURATION */
+ INDYCAM_BLUE_SATURATION_DEFAULT,/* INDYCAM_BLUE_SATURATION */
+};
+
+/* IndyCam register handling */
+
+static int indycam_read_reg(struct v4l2_subdev *sd, u8 reg, u8 *value)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ int ret;
+
+ if (reg == INDYCAM_REG_RESET) {
+ dprintk("indycam_read_reg(): "
+ "skipping write-only register %d\n", reg);
+ *value = 0;
+ return 0;
+ }
+
+ ret = i2c_smbus_read_byte_data(client, reg);
+
+ if (ret < 0) {
+ printk(KERN_ERR "IndyCam: indycam_read_reg(): read failed, "
+ "register = 0x%02x\n", reg);
+ return ret;
+ }
+
+ *value = (u8)ret;
+
+ return 0;
+}
+
+static int indycam_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ int err;
+
+ if (reg == INDYCAM_REG_BRIGHTNESS || reg == INDYCAM_REG_VERSION) {
+ dprintk("indycam_write_reg(): "
+ "skipping read-only register %d\n", reg);
+ return 0;
+ }
+
+ dprintk("Writing Reg %d = 0x%02x\n", reg, value);
+ err = i2c_smbus_write_byte_data(client, reg, value);
+
+ if (err) {
+ printk(KERN_ERR "IndyCam: indycam_write_reg(): write failed, "
+ "register = 0x%02x, value = 0x%02x\n", reg, value);
+ }
+ return err;
+}
+
+static int indycam_write_block(struct v4l2_subdev *sd, u8 reg,
+ u8 length, u8 *data)
+{
+ int i, err;
+
+ for (i = 0; i < length; i++) {
+ err = indycam_write_reg(sd, reg + i, data[i]);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+/* Helper functions */
+
+#ifdef INDYCAM_DEBUG
+static void indycam_regdump_debug(struct v4l2_subdev *sd)
+{
+ int i;
+ u8 val;
+
+ for (i = 0; i < 9; i++) {
+ indycam_read_reg(sd, i, &val);
+ dprintk("Reg %d = 0x%02x\n", i, val);
+ }
+}
+#endif
+
+static int indycam_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct indycam *camera = to_indycam(sd);
+ u8 reg;
+ int ret = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUTOGAIN:
+ case V4L2_CID_AUTO_WHITE_BALANCE:
+ ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®);
+ if (ret)
+ return -EIO;
+ if (ctrl->id == V4L2_CID_AUTOGAIN)
+ ctrl->value = (reg & INDYCAM_CONTROL_AGCENA)
+ ? 1 : 0;
+ else
+ ctrl->value = (reg & INDYCAM_CONTROL_AWBCTL)
+ ? 1 : 0;
+ break;
+ case V4L2_CID_EXPOSURE:
+ ret = indycam_read_reg(sd, INDYCAM_REG_SHUTTER, ®);
+ if (ret)
+ return -EIO;
+ ctrl->value = ((s32)reg == 0x00) ? 0xff : ((s32)reg - 1);
+ break;
+ case V4L2_CID_GAIN:
+ ret = indycam_read_reg(sd, INDYCAM_REG_GAIN, ®);
+ if (ret)
+ return -EIO;
+ ctrl->value = (s32)reg;
+ break;
+ case V4L2_CID_RED_BALANCE:
+ ret = indycam_read_reg(sd, INDYCAM_REG_RED_BALANCE, ®);
+ if (ret)
+ return -EIO;
+ ctrl->value = (s32)reg;
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ ret = indycam_read_reg(sd, INDYCAM_REG_BLUE_BALANCE, ®);
+ if (ret)
+ return -EIO;
+ ctrl->value = (s32)reg;
+ break;
+ case INDYCAM_CONTROL_RED_SATURATION:
+ ret = indycam_read_reg(sd,
+ INDYCAM_REG_RED_SATURATION, ®);
+ if (ret)
+ return -EIO;
+ ctrl->value = (s32)reg;
+ break;
+ case INDYCAM_CONTROL_BLUE_SATURATION:
+ ret = indycam_read_reg(sd,
+ INDYCAM_REG_BLUE_SATURATION, ®);
+ if (ret)
+ return -EIO;
+ ctrl->value = (s32)reg;
+ break;
+ case V4L2_CID_GAMMA:
+ if (camera->version == CAMERA_VERSION_MOOSE) {
+ ret = indycam_read_reg(sd,
+ INDYCAM_REG_GAMMA, ®);
+ if (ret)
+ return -EIO;
+ ctrl->value = (s32)reg;
+ } else {
+ ctrl->value = INDYCAM_GAMMA_DEFAULT;
+ }
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int indycam_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct indycam *camera = to_indycam(sd);
+ u8 reg;
+ int ret = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUTOGAIN:
+ case V4L2_CID_AUTO_WHITE_BALANCE:
+ ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®);
+ if (ret)
+ break;
+
+ if (ctrl->id == V4L2_CID_AUTOGAIN) {
+ if (ctrl->value)
+ reg |= INDYCAM_CONTROL_AGCENA;
+ else
+ reg &= ~INDYCAM_CONTROL_AGCENA;
+ } else {
+ if (ctrl->value)
+ reg |= INDYCAM_CONTROL_AWBCTL;
+ else
+ reg &= ~INDYCAM_CONTROL_AWBCTL;
+ }
+
+ ret = indycam_write_reg(sd, INDYCAM_REG_CONTROL, reg);
+ break;
+ case V4L2_CID_EXPOSURE:
+ reg = (ctrl->value == 0xff) ? 0x00 : (ctrl->value + 1);
+ ret = indycam_write_reg(sd, INDYCAM_REG_SHUTTER, reg);
+ break;
+ case V4L2_CID_GAIN:
+ ret = indycam_write_reg(sd, INDYCAM_REG_GAIN, ctrl->value);
+ break;
+ case V4L2_CID_RED_BALANCE:
+ ret = indycam_write_reg(sd, INDYCAM_REG_RED_BALANCE,
+ ctrl->value);
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_BALANCE,
+ ctrl->value);
+ break;
+ case INDYCAM_CONTROL_RED_SATURATION:
+ ret = indycam_write_reg(sd, INDYCAM_REG_RED_SATURATION,
+ ctrl->value);
+ break;
+ case INDYCAM_CONTROL_BLUE_SATURATION:
+ ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_SATURATION,
+ ctrl->value);
+ break;
+ case V4L2_CID_GAMMA:
+ if (camera->version == CAMERA_VERSION_MOOSE) {
+ ret = indycam_write_reg(sd, INDYCAM_REG_GAMMA,
+ ctrl->value);
+ }
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+/* I2C-interface */
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops indycam_core_ops = {
+ .g_ctrl = indycam_g_ctrl,
+ .s_ctrl = indycam_s_ctrl,
+};
+
+static const struct v4l2_subdev_ops indycam_ops = {
+ .core = &indycam_core_ops,
+};
+
+static int indycam_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ int err = 0;
+ struct indycam *camera;
+ struct v4l2_subdev *sd;
+
+ v4l_info(client, "chip found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
+
+ camera = kzalloc(sizeof(struct indycam), GFP_KERNEL);
+ if (!camera)
+ return -ENOMEM;
+
+ sd = &camera->sd;
+ v4l2_i2c_subdev_init(sd, client, &indycam_ops);
+
+ camera->version = i2c_smbus_read_byte_data(client,
+ INDYCAM_REG_VERSION);
+ if (camera->version != CAMERA_VERSION_INDY &&
+ camera->version != CAMERA_VERSION_MOOSE) {
+ kfree(camera);
+ return -ENODEV;
+ }
+
+ printk(KERN_INFO "IndyCam v%d.%d detected\n",
+ INDYCAM_VERSION_MAJOR(camera->version),
+ INDYCAM_VERSION_MINOR(camera->version));
+
+ indycam_regdump(sd);
+
+ // initialize
+ err = indycam_write_block(sd, 0, sizeof(initseq), (u8 *)&initseq);
+ if (err) {
+ printk(KERN_ERR "IndyCam initialization failed\n");
+ kfree(camera);
+ return -EIO;
+ }
+
+ indycam_regdump(sd);
+
+ // white balance
+ err = indycam_write_reg(sd, INDYCAM_REG_CONTROL,
+ INDYCAM_CONTROL_AGCENA | INDYCAM_CONTROL_AWBCTL);
+ if (err) {
+ printk(KERN_ERR "IndyCam: White balancing camera failed\n");
+ kfree(camera);
+ return -EIO;
+ }
+
+ indycam_regdump(sd);
+
+ printk(KERN_INFO "IndyCam initialized\n");
+
+ return 0;
+}
+
+static int indycam_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+ v4l2_device_unregister_subdev(sd);
+ kfree(to_indycam(sd));
+ return 0;
+}
+
+static const struct i2c_device_id indycam_id[] = {
+ { "indycam", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, indycam_id);
+
+static struct i2c_driver indycam_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "indycam",
+ },
+ .probe = indycam_probe,
+ .remove = indycam_remove,
+ .id_table = indycam_id,
+};
+
+module_i2c_driver(indycam_driver);
--- /dev/null
+/*
+ * indycam.h - Silicon Graphics IndyCam digital camera driver
+ *
+ * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
+ * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
+ *
+ * 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 _INDYCAM_H_
+#define _INDYCAM_H_
+
+/* I2C address for the Guinness Camera */
+#define INDYCAM_ADDR 0x56
+
+/* Camera version */
+#define CAMERA_VERSION_INDY 0x10 /* v1.0 */
+#define CAMERA_VERSION_MOOSE 0x12 /* v1.2 */
+#define INDYCAM_VERSION_MAJOR(x) (((x) & 0xf0) >> 4)
+#define INDYCAM_VERSION_MINOR(x) ((x) & 0x0f)
+
+/* Register bus addresses */
+#define INDYCAM_REG_CONTROL 0x00
+#define INDYCAM_REG_SHUTTER 0x01
+#define INDYCAM_REG_GAIN 0x02
+#define INDYCAM_REG_BRIGHTNESS 0x03 /* read-only */
+#define INDYCAM_REG_RED_BALANCE 0x04
+#define INDYCAM_REG_BLUE_BALANCE 0x05
+#define INDYCAM_REG_RED_SATURATION 0x06
+#define INDYCAM_REG_BLUE_SATURATION 0x07
+#define INDYCAM_REG_GAMMA 0x08
+#define INDYCAM_REG_VERSION 0x0e /* read-only */
+#define INDYCAM_REG_RESET 0x0f /* write-only */
+
+#define INDYCAM_REG_LED 0x46
+#define INDYCAM_REG_ORIENTATION 0x47
+#define INDYCAM_REG_BUTTON 0x48
+
+/* Field definitions of registers */
+#define INDYCAM_CONTROL_AGCENA (1<<0) /* automatic gain control */
+#define INDYCAM_CONTROL_AWBCTL (1<<1) /* automatic white balance */
+ /* 2-3 are reserved */
+#define INDYCAM_CONTROL_EVNFLD (1<<4) /* read-only */
+
+#define INDYCAM_SHUTTER_10000 0x02 /* 1/10000 second */
+#define INDYCAM_SHUTTER_4000 0x04 /* 1/4000 second */
+#define INDYCAM_SHUTTER_2000 0x08 /* 1/2000 second */
+#define INDYCAM_SHUTTER_1000 0x10 /* 1/1000 second */
+#define INDYCAM_SHUTTER_500 0x20 /* 1/500 second */
+#define INDYCAM_SHUTTER_250 0x3f /* 1/250 second */
+#define INDYCAM_SHUTTER_125 0x7e /* 1/125 second */
+#define INDYCAM_SHUTTER_100 0x9e /* 1/100 second */
+#define INDYCAM_SHUTTER_60 0x00 /* 1/60 second */
+
+#define INDYCAM_LED_ACTIVE 0x10
+#define INDYCAM_LED_INACTIVE 0x30
+#define INDYCAM_ORIENTATION_BOTTOM_TO_TOP 0x40
+#define INDYCAM_BUTTON_RELEASED 0x10
+
+/* Values for controls */
+#define INDYCAM_SHUTTER_MIN 0x00
+#define INDYCAM_SHUTTER_MAX 0xff
+#define INDYCAM_GAIN_MIN 0x00
+#define INDYCAM_GAIN_MAX 0xff
+#define INDYCAM_RED_BALANCE_MIN 0x00
+#define INDYCAM_RED_BALANCE_MAX 0xff
+#define INDYCAM_BLUE_BALANCE_MIN 0x00
+#define INDYCAM_BLUE_BALANCE_MAX 0xff
+#define INDYCAM_RED_SATURATION_MIN 0x00
+#define INDYCAM_RED_SATURATION_MAX 0xff
+#define INDYCAM_BLUE_SATURATION_MIN 0x00
+#define INDYCAM_BLUE_SATURATION_MAX 0xff
+#define INDYCAM_GAMMA_MIN 0x00
+#define INDYCAM_GAMMA_MAX 0xff
+
+#define INDYCAM_AGC_DEFAULT 1
+#define INDYCAM_AWB_DEFAULT 0
+#define INDYCAM_SHUTTER_DEFAULT 0xff
+#define INDYCAM_GAIN_DEFAULT 0x80
+#define INDYCAM_RED_BALANCE_DEFAULT 0x18
+#define INDYCAM_BLUE_BALANCE_DEFAULT 0xa4
+#define INDYCAM_RED_SATURATION_DEFAULT 0x80
+#define INDYCAM_BLUE_SATURATION_DEFAULT 0xc0
+#define INDYCAM_GAMMA_DEFAULT 0x80
+
+/* Driver interface definitions */
+
+#define INDYCAM_CONTROL_RED_SATURATION (V4L2_CID_PRIVATE_BASE + 0)
+#define INDYCAM_CONTROL_BLUE_SATURATION (V4L2_CID_PRIVATE_BASE + 1)
+
+#endif
--- /dev/null
+/*
+ * saa7191.c - Philips SAA7191 video decoder driver
+ *
+ * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
+ * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
+ *
+ * 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/errno.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+
+#include <linux/videodev2.h>
+#include <linux/i2c.h>
+#include <media/v4l2-device.h>
+
+#include "saa7191.h"
+
+#define SAA7191_MODULE_VERSION "0.0.5"
+
+MODULE_DESCRIPTION("Philips SAA7191 video decoder driver");
+MODULE_VERSION(SAA7191_MODULE_VERSION);
+MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
+MODULE_LICENSE("GPL");
+
+
+// #define SAA7191_DEBUG
+
+#ifdef SAA7191_DEBUG
+#define dprintk(x...) printk("SAA7191: " x);
+#else
+#define dprintk(x...)
+#endif
+
+#define SAA7191_SYNC_COUNT 30
+#define SAA7191_SYNC_DELAY 100 /* milliseconds */
+
+struct saa7191 {
+ struct v4l2_subdev sd;
+
+ /* the register values are stored here as the actual
+ * I2C-registers are write-only */
+ u8 reg[25];
+
+ int input;
+ v4l2_std_id norm;
+};
+
+static inline struct saa7191 *to_saa7191(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct saa7191, sd);
+}
+
+static const u8 initseq[] = {
+ 0, /* Subaddress */
+
+ 0x50, /* (0x50) SAA7191_REG_IDEL */
+
+ /* 50 Hz signal timing */
+ 0x30, /* (0x30) SAA7191_REG_HSYB */
+ 0x00, /* (0x00) SAA7191_REG_HSYS */
+ 0xe8, /* (0xe8) SAA7191_REG_HCLB */
+ 0xb6, /* (0xb6) SAA7191_REG_HCLS */
+ 0xf4, /* (0xf4) SAA7191_REG_HPHI */
+
+ /* control */
+ SAA7191_LUMA_APER_1, /* (0x01) SAA7191_REG_LUMA - CVBS mode */
+ 0x00, /* (0x00) SAA7191_REG_HUEC */
+ 0xf8, /* (0xf8) SAA7191_REG_CKTQ */
+ 0xf8, /* (0xf8) SAA7191_REG_CKTS */
+ 0x90, /* (0x90) SAA7191_REG_PLSE */
+ 0x90, /* (0x90) SAA7191_REG_SESE */
+ 0x00, /* (0x00) SAA7191_REG_GAIN */
+ SAA7191_STDC_NFEN | SAA7191_STDC_HRMV, /* (0x0c) SAA7191_REG_STDC
+ * - not SECAM,
+ * slow time constant */
+ SAA7191_IOCK_OEDC | SAA7191_IOCK_OEHS | SAA7191_IOCK_OEVS
+ | SAA7191_IOCK_OEDY, /* (0x78) SAA7191_REG_IOCK
+ * - chroma from CVBS, GPSW1 & 2 off */
+ SAA7191_CTL3_AUFD | SAA7191_CTL3_SCEN | SAA7191_CTL3_OFTS
+ | SAA7191_CTL3_YDEL0, /* (0x99) SAA7191_REG_CTL3
+ * - automatic field detection */
+ 0x00, /* (0x00) SAA7191_REG_CTL4 */
+ 0x2c, /* (0x2c) SAA7191_REG_CHCV - PAL nominal value */
+ 0x00, /* unused */
+ 0x00, /* unused */
+
+ /* 60 Hz signal timing */
+ 0x34, /* (0x34) SAA7191_REG_HS6B */
+ 0x0a, /* (0x0a) SAA7191_REG_HS6S */
+ 0xf4, /* (0xf4) SAA7191_REG_HC6B */
+ 0xce, /* (0xce) SAA7191_REG_HC6S */
+ 0xf4, /* (0xf4) SAA7191_REG_HP6I */
+};
+
+/* SAA7191 register handling */
+
+static u8 saa7191_read_reg(struct v4l2_subdev *sd, u8 reg)
+{
+ return to_saa7191(sd)->reg[reg];
+}
+
+static int saa7191_read_status(struct v4l2_subdev *sd, u8 *value)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ int ret;
+
+ ret = i2c_master_recv(client, value, 1);
+ if (ret < 0) {
+ printk(KERN_ERR "SAA7191: saa7191_read_status(): read failed\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+
+static int saa7191_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ to_saa7191(sd)->reg[reg] = value;
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+/* the first byte of data must be the first subaddress number (register) */
+static int saa7191_write_block(struct v4l2_subdev *sd,
+ u8 length, const u8 *data)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct saa7191 *decoder = to_saa7191(sd);
+ int i;
+ int ret;
+
+ for (i = 0; i < (length - 1); i++) {
+ decoder->reg[data[0] + i] = data[i + 1];
+ }
+
+ ret = i2c_master_send(client, data, length);
+ if (ret < 0) {
+ printk(KERN_ERR "SAA7191: saa7191_write_block(): "
+ "write failed\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+/* Helper functions */
+
+static int saa7191_s_routing(struct v4l2_subdev *sd,
+ u32 input, u32 output, u32 config)
+{
+ struct saa7191 *decoder = to_saa7191(sd);
+ u8 luma = saa7191_read_reg(sd, SAA7191_REG_LUMA);
+ u8 iock = saa7191_read_reg(sd, SAA7191_REG_IOCK);
+ int err;
+
+ switch (input) {
+ case SAA7191_INPUT_COMPOSITE: /* Set Composite input */
+ iock &= ~(SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW1
+ | SAA7191_IOCK_GPSW2);
+ /* Chrominance trap active */
+ luma &= ~SAA7191_LUMA_BYPS;
+ break;
+ case SAA7191_INPUT_SVIDEO: /* Set S-Video input */
+ iock |= SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW2;
+ /* Chrominance trap bypassed */
+ luma |= SAA7191_LUMA_BYPS;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ err = saa7191_write_reg(sd, SAA7191_REG_LUMA, luma);
+ if (err)
+ return -EIO;
+ err = saa7191_write_reg(sd, SAA7191_REG_IOCK, iock);
+ if (err)
+ return -EIO;
+
+ decoder->input = input;
+
+ return 0;
+}
+
+static int saa7191_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
+{
+ struct saa7191 *decoder = to_saa7191(sd);
+ u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC);
+ u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3);
+ u8 chcv = saa7191_read_reg(sd, SAA7191_REG_CHCV);
+ int err;
+
+ if (norm & V4L2_STD_PAL) {
+ stdc &= ~SAA7191_STDC_SECS;
+ ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL);
+ chcv = SAA7191_CHCV_PAL;
+ } else if (norm & V4L2_STD_NTSC) {
+ stdc &= ~SAA7191_STDC_SECS;
+ ctl3 &= ~SAA7191_CTL3_AUFD;
+ ctl3 |= SAA7191_CTL3_FSEL;
+ chcv = SAA7191_CHCV_NTSC;
+ } else if (norm & V4L2_STD_SECAM) {
+ stdc |= SAA7191_STDC_SECS;
+ ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL);
+ chcv = SAA7191_CHCV_PAL;
+ } else {
+ return -EINVAL;
+ }
+
+ err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
+ if (err)
+ return -EIO;
+ err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc);
+ if (err)
+ return -EIO;
+ err = saa7191_write_reg(sd, SAA7191_REG_CHCV, chcv);
+ if (err)
+ return -EIO;
+
+ decoder->norm = norm;
+
+ dprintk("ctl3: %02x stdc: %02x chcv: %02x\n", ctl3,
+ stdc, chcv);
+ dprintk("norm: %llx\n", norm);
+
+ return 0;
+}
+
+static int saa7191_wait_for_signal(struct v4l2_subdev *sd, u8 *status)
+{
+ int i = 0;
+
+ dprintk("Checking for signal...\n");
+
+ for (i = 0; i < SAA7191_SYNC_COUNT; i++) {
+ if (saa7191_read_status(sd, status))
+ return -EIO;
+
+ if (((*status) & SAA7191_STATUS_HLCK) == 0) {
+ dprintk("Signal found\n");
+ return 0;
+ }
+
+ msleep(SAA7191_SYNC_DELAY);
+ }
+
+ dprintk("No signal\n");
+
+ return -EBUSY;
+}
+
+static int saa7191_querystd(struct v4l2_subdev *sd, v4l2_std_id *norm)
+{
+ struct saa7191 *decoder = to_saa7191(sd);
+ u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC);
+ u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3);
+ u8 status;
+ v4l2_std_id old_norm = decoder->norm;
+ int err = 0;
+
+ dprintk("SAA7191 extended signal auto-detection...\n");
+
+ *norm &= V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM;
+ stdc &= ~SAA7191_STDC_SECS;
+ ctl3 &= ~(SAA7191_CTL3_FSEL);
+
+ err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc);
+ if (err) {
+ err = -EIO;
+ goto out;
+ }
+ err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
+ if (err) {
+ err = -EIO;
+ goto out;
+ }
+
+ ctl3 |= SAA7191_CTL3_AUFD;
+ err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3);
+ if (err) {
+ err = -EIO;
+ goto out;
+ }
+
+ msleep(SAA7191_SYNC_DELAY);
+
+ err = saa7191_wait_for_signal(sd, &status);
+ if (err)
+ goto out;
+
+ if (status & SAA7191_STATUS_FIDT) {
+ /* 60Hz signal -> NTSC */
+ dprintk("60Hz signal: NTSC\n");
+ *norm &= V4L2_STD_NTSC;
+ return 0;
+ }
+
+ /* 50Hz signal */
+ dprintk("50Hz signal: Trying PAL...\n");
+
+ /* try PAL first */
+ err = saa7191_s_std(sd, V4L2_STD_PAL);
+ if (err)
+ goto out;
+
+ msleep(SAA7191_SYNC_DELAY);
+
+ err = saa7191_wait_for_signal(sd, &status);
+ if (err)
+ goto out;
+
+ /* not 50Hz ? */
+ if (status & SAA7191_STATUS_FIDT) {
+ dprintk("No 50Hz signal\n");
+ saa7191_s_std(sd, old_norm);
+ *norm = V4L2_STD_UNKNOWN;
+ return 0;
+ }
+
+ if (status & SAA7191_STATUS_CODE) {
+ dprintk("PAL\n");
+ *norm &= V4L2_STD_PAL;
+ return saa7191_s_std(sd, old_norm);
+ }
+
+ dprintk("No color detected with PAL - Trying SECAM...\n");
+
+ /* no color detected ? -> try SECAM */
+ err = saa7191_s_std(sd, V4L2_STD_SECAM);
+ if (err)
+ goto out;
+
+ msleep(SAA7191_SYNC_DELAY);
+
+ err = saa7191_wait_for_signal(sd, &status);
+ if (err)
+ goto out;
+
+ /* not 50Hz ? */
+ if (status & SAA7191_STATUS_FIDT) {
+ dprintk("No 50Hz signal\n");
+ *norm = V4L2_STD_UNKNOWN;
+ goto out;
+ }
+
+ if (status & SAA7191_STATUS_CODE) {
+ /* Color detected -> SECAM */
+ dprintk("SECAM\n");
+ *norm &= V4L2_STD_SECAM;
+ return saa7191_s_std(sd, old_norm);
+ }
+
+ dprintk("No color detected with SECAM - Going back to PAL.\n");
+ *norm = V4L2_STD_UNKNOWN;
+
+out:
+ return saa7191_s_std(sd, old_norm);
+}
+
+static int saa7191_autodetect_norm(struct v4l2_subdev *sd)
+{
+ u8 status;
+
+ dprintk("SAA7191 signal auto-detection...\n");
+
+ dprintk("Reading status...\n");
+
+ if (saa7191_read_status(sd, &status))
+ return -EIO;
+
+ dprintk("Checking for signal...\n");
+
+ /* no signal ? */
+ if (status & SAA7191_STATUS_HLCK) {
+ dprintk("No signal\n");
+ return -EBUSY;
+ }
+
+ dprintk("Signal found\n");
+
+ if (status & SAA7191_STATUS_FIDT) {
+ /* 60hz signal -> NTSC */
+ dprintk("NTSC\n");
+ return saa7191_s_std(sd, V4L2_STD_NTSC);
+ } else {
+ /* 50hz signal -> PAL */
+ dprintk("PAL\n");
+ return saa7191_s_std(sd, V4L2_STD_PAL);
+ }
+}
+
+static int saa7191_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ u8 reg;
+ int ret = 0;
+
+ switch (ctrl->id) {
+ case SAA7191_CONTROL_BANDPASS:
+ case SAA7191_CONTROL_BANDPASS_WEIGHT:
+ case SAA7191_CONTROL_CORING:
+ reg = saa7191_read_reg(sd, SAA7191_REG_LUMA);
+ switch (ctrl->id) {
+ case SAA7191_CONTROL_BANDPASS:
+ ctrl->value = ((s32)reg & SAA7191_LUMA_BPSS_MASK)
+ >> SAA7191_LUMA_BPSS_SHIFT;
+ break;
+ case SAA7191_CONTROL_BANDPASS_WEIGHT:
+ ctrl->value = ((s32)reg & SAA7191_LUMA_APER_MASK)
+ >> SAA7191_LUMA_APER_SHIFT;
+ break;
+ case SAA7191_CONTROL_CORING:
+ ctrl->value = ((s32)reg & SAA7191_LUMA_CORI_MASK)
+ >> SAA7191_LUMA_CORI_SHIFT;
+ break;
+ }
+ break;
+ case SAA7191_CONTROL_FORCE_COLOUR:
+ case SAA7191_CONTROL_CHROMA_GAIN:
+ reg = saa7191_read_reg(sd, SAA7191_REG_GAIN);
+ if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR)
+ ctrl->value = ((s32)reg & SAA7191_GAIN_COLO) ? 1 : 0;
+ else
+ ctrl->value = ((s32)reg & SAA7191_GAIN_LFIS_MASK)
+ >> SAA7191_GAIN_LFIS_SHIFT;
+ break;
+ case V4L2_CID_HUE:
+ reg = saa7191_read_reg(sd, SAA7191_REG_HUEC);
+ if (reg < 0x80)
+ reg += 0x80;
+ else
+ reg -= 0x80;
+ ctrl->value = (s32)reg;
+ break;
+ case SAA7191_CONTROL_VTRC:
+ reg = saa7191_read_reg(sd, SAA7191_REG_STDC);
+ ctrl->value = ((s32)reg & SAA7191_STDC_VTRC) ? 1 : 0;
+ break;
+ case SAA7191_CONTROL_LUMA_DELAY:
+ reg = saa7191_read_reg(sd, SAA7191_REG_CTL3);
+ ctrl->value = ((s32)reg & SAA7191_CTL3_YDEL_MASK)
+ >> SAA7191_CTL3_YDEL_SHIFT;
+ if (ctrl->value >= 4)
+ ctrl->value -= 8;
+ break;
+ case SAA7191_CONTROL_VNR:
+ reg = saa7191_read_reg(sd, SAA7191_REG_CTL4);
+ ctrl->value = ((s32)reg & SAA7191_CTL4_VNOI_MASK)
+ >> SAA7191_CTL4_VNOI_SHIFT;
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int saa7191_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ u8 reg;
+ int ret = 0;
+
+ switch (ctrl->id) {
+ case SAA7191_CONTROL_BANDPASS:
+ case SAA7191_CONTROL_BANDPASS_WEIGHT:
+ case SAA7191_CONTROL_CORING:
+ reg = saa7191_read_reg(sd, SAA7191_REG_LUMA);
+ switch (ctrl->id) {
+ case SAA7191_CONTROL_BANDPASS:
+ reg &= ~SAA7191_LUMA_BPSS_MASK;
+ reg |= (ctrl->value << SAA7191_LUMA_BPSS_SHIFT)
+ & SAA7191_LUMA_BPSS_MASK;
+ break;
+ case SAA7191_CONTROL_BANDPASS_WEIGHT:
+ reg &= ~SAA7191_LUMA_APER_MASK;
+ reg |= (ctrl->value << SAA7191_LUMA_APER_SHIFT)
+ & SAA7191_LUMA_APER_MASK;
+ break;
+ case SAA7191_CONTROL_CORING:
+ reg &= ~SAA7191_LUMA_CORI_MASK;
+ reg |= (ctrl->value << SAA7191_LUMA_CORI_SHIFT)
+ & SAA7191_LUMA_CORI_MASK;
+ break;
+ }
+ ret = saa7191_write_reg(sd, SAA7191_REG_LUMA, reg);
+ break;
+ case SAA7191_CONTROL_FORCE_COLOUR:
+ case SAA7191_CONTROL_CHROMA_GAIN:
+ reg = saa7191_read_reg(sd, SAA7191_REG_GAIN);
+ if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR) {
+ if (ctrl->value)
+ reg |= SAA7191_GAIN_COLO;
+ else
+ reg &= ~SAA7191_GAIN_COLO;
+ } else {
+ reg &= ~SAA7191_GAIN_LFIS_MASK;
+ reg |= (ctrl->value << SAA7191_GAIN_LFIS_SHIFT)
+ & SAA7191_GAIN_LFIS_MASK;
+ }
+ ret = saa7191_write_reg(sd, SAA7191_REG_GAIN, reg);
+ break;
+ case V4L2_CID_HUE:
+ reg = ctrl->value & 0xff;
+ if (reg < 0x80)
+ reg += 0x80;
+ else
+ reg -= 0x80;
+ ret = saa7191_write_reg(sd, SAA7191_REG_HUEC, reg);
+ break;
+ case SAA7191_CONTROL_VTRC:
+ reg = saa7191_read_reg(sd, SAA7191_REG_STDC);
+ if (ctrl->value)
+ reg |= SAA7191_STDC_VTRC;
+ else
+ reg &= ~SAA7191_STDC_VTRC;
+ ret = saa7191_write_reg(sd, SAA7191_REG_STDC, reg);
+ break;
+ case SAA7191_CONTROL_LUMA_DELAY: {
+ s32 value = ctrl->value;
+ if (value < 0)
+ value += 8;
+ reg = saa7191_read_reg(sd, SAA7191_REG_CTL3);
+ reg &= ~SAA7191_CTL3_YDEL_MASK;
+ reg |= (value << SAA7191_CTL3_YDEL_SHIFT)
+ & SAA7191_CTL3_YDEL_MASK;
+ ret = saa7191_write_reg(sd, SAA7191_REG_CTL3, reg);
+ break;
+ }
+ case SAA7191_CONTROL_VNR:
+ reg = saa7191_read_reg(sd, SAA7191_REG_CTL4);
+ reg &= ~SAA7191_CTL4_VNOI_MASK;
+ reg |= (ctrl->value << SAA7191_CTL4_VNOI_SHIFT)
+ & SAA7191_CTL4_VNOI_MASK;
+ ret = saa7191_write_reg(sd, SAA7191_REG_CTL4, reg);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+/* I2C-interface */
+
+static int saa7191_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+ u8 status_reg;
+ int res = V4L2_IN_ST_NO_SIGNAL;
+
+ if (saa7191_read_status(sd, &status_reg))
+ return -EIO;
+ if ((status_reg & SAA7191_STATUS_HLCK) == 0)
+ res = 0;
+ if (!(status_reg & SAA7191_STATUS_CODE))
+ res |= V4L2_IN_ST_NO_COLOR;
+ *status = res;
+ return 0;
+}
+
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops saa7191_core_ops = {
+ .g_ctrl = saa7191_g_ctrl,
+ .s_ctrl = saa7191_s_ctrl,
+};
+
+static const struct v4l2_subdev_video_ops saa7191_video_ops = {
+ .s_std = saa7191_s_std,
+ .s_routing = saa7191_s_routing,
+ .querystd = saa7191_querystd,
+ .g_input_status = saa7191_g_input_status,
+};
+
+static const struct v4l2_subdev_ops saa7191_ops = {
+ .core = &saa7191_core_ops,
+ .video = &saa7191_video_ops,
+};
+
+static int saa7191_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ int err = 0;
+ struct saa7191 *decoder;
+ struct v4l2_subdev *sd;
+
+ v4l_info(client, "chip found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
+
+ decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL);
+ if (!decoder)
+ return -ENOMEM;
+
+ sd = &decoder->sd;
+ v4l2_i2c_subdev_init(sd, client, &saa7191_ops);
+
+ err = saa7191_write_block(sd, sizeof(initseq), initseq);
+ if (err) {
+ printk(KERN_ERR "SAA7191 initialization failed\n");
+ return err;
+ }
+
+ printk(KERN_INFO "SAA7191 initialized\n");
+
+ decoder->input = SAA7191_INPUT_COMPOSITE;
+ decoder->norm = V4L2_STD_PAL;
+
+ err = saa7191_autodetect_norm(sd);
+ if (err && (err != -EBUSY))
+ printk(KERN_ERR "SAA7191: Signal auto-detection failed\n");
+
+ return 0;
+}
+
+static int saa7191_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+ v4l2_device_unregister_subdev(sd);
+ return 0;
+}
+
+static const struct i2c_device_id saa7191_id[] = {
+ { "saa7191", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, saa7191_id);
+
+static struct i2c_driver saa7191_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "saa7191",
+ },
+ .probe = saa7191_probe,
+ .remove = saa7191_remove,
+ .id_table = saa7191_id,
+};
+
+module_i2c_driver(saa7191_driver);
--- /dev/null
+/*
+ * saa7191.h - Philips SAA7191 video decoder driver
+ *
+ * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
+ * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
+ *
+ * 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 _SAA7191_H_
+#define _SAA7191_H_
+
+/* Philips SAA7191 DMSD I2C bus address */
+#define SAA7191_ADDR 0x8a
+
+/* Register subaddresses. */
+#define SAA7191_REG_IDEL 0x00
+#define SAA7191_REG_HSYB 0x01
+#define SAA7191_REG_HSYS 0x02
+#define SAA7191_REG_HCLB 0x03
+#define SAA7191_REG_HCLS 0x04
+#define SAA7191_REG_HPHI 0x05
+#define SAA7191_REG_LUMA 0x06
+#define SAA7191_REG_HUEC 0x07
+#define SAA7191_REG_CKTQ 0x08 /* bits 3-7 */
+#define SAA7191_REG_CKTS 0x09 /* bits 3-7 */
+#define SAA7191_REG_PLSE 0x0a
+#define SAA7191_REG_SESE 0x0b
+#define SAA7191_REG_GAIN 0x0c
+#define SAA7191_REG_STDC 0x0d
+#define SAA7191_REG_IOCK 0x0e
+#define SAA7191_REG_CTL3 0x0f
+#define SAA7191_REG_CTL4 0x10
+#define SAA7191_REG_CHCV 0x11
+#define SAA7191_REG_HS6B 0x14
+#define SAA7191_REG_HS6S 0x15
+#define SAA7191_REG_HC6B 0x16
+#define SAA7191_REG_HC6S 0x17
+#define SAA7191_REG_HP6I 0x18
+#define SAA7191_REG_STATUS 0xff /* not really a subaddress */
+
+/* Status Register definitions */
+#define SAA7191_STATUS_CODE 0x01 /* color detected flag */
+#define SAA7191_STATUS_FIDT 0x20 /* signal type 50/60 Hz */
+#define SAA7191_STATUS_HLCK 0x40 /* PLL unlocked(1)/locked(0) */
+#define SAA7191_STATUS_STTC 0x80 /* tv/vtr time constant */
+
+/* Luminance Control Register definitions */
+/* input mode select bit:
+ * 0=CVBS (chrominance trap active), 1=S-Video (trap bypassed) */
+#define SAA7191_LUMA_BYPS 0x80
+/* pre-filter (only when chrominance trap is active) */
+#define SAA7191_LUMA_PREF 0x40
+/* aperture bandpass to select different characteristics with maximums
+ * (bits 4-5) */
+#define SAA7191_LUMA_BPSS_MASK 0x30
+#define SAA7191_LUMA_BPSS_SHIFT 4
+#define SAA7191_LUMA_BPSS_3 0x30
+#define SAA7191_LUMA_BPSS_2 0x20
+#define SAA7191_LUMA_BPSS_1 0x10
+#define SAA7191_LUMA_BPSS_0 0x00
+/* coring range for high frequency components according to 8-bit luminance
+ * (bits 2-3)
+ * 0=coring off, n= (+-)n LSB */
+#define SAA7191_LUMA_CORI_MASK 0x0c
+#define SAA7191_LUMA_CORI_SHIFT 2
+#define SAA7191_LUMA_CORI_3 0x0c
+#define SAA7191_LUMA_CORI_2 0x08
+#define SAA7191_LUMA_CORI_1 0x04
+#define SAA7191_LUMA_CORI_0 0x00
+/* aperture bandpass filter weights high frequency components of luminance
+ * signal (bits 0-1)
+ * 0=factor 0, 1=0.25, 2=0.5, 3=1 */
+#define SAA7191_LUMA_APER_MASK 0x03
+#define SAA7191_LUMA_APER_SHIFT 0
+#define SAA7191_LUMA_APER_3 0x03
+#define SAA7191_LUMA_APER_2 0x02
+#define SAA7191_LUMA_APER_1 0x01
+#define SAA7191_LUMA_APER_0 0x00
+
+/* Chrominance Gain Control Settings Register definitions */
+/* colour on: 0=automatic colour-killer enabled, 1=forced colour on */
+#define SAA7191_GAIN_COLO 0x80
+/* chrominance gain control (AGC filter)
+ * 0=loop filter time constant slow, 1=medium, 2=fast, 3=actual gain */
+#define SAA7191_GAIN_LFIS_MASK 0x60
+#define SAA7191_GAIN_LFIS_SHIFT 5
+#define SAA7191_GAIN_LFIS_3 0x60
+#define SAA7191_GAIN_LFIS_2 0x40
+#define SAA7191_GAIN_LFIS_1 0x20
+#define SAA7191_GAIN_LFIS_0 0x00
+
+/* Standard/Mode Control Register definitions */
+/* tv/vtr mode bit: 0=TV mode (slow time constant),
+ * 1=VTR mode (fast time constant) */
+#define SAA7191_STDC_VTRC 0x80
+/* SAA7191B-specific functions enable (RTCO, ODD and GPSW0 outputs)
+ * 0=outputs set to high-impedance (circuit equals SAA7191), 1=enabled */
+#define SAA7191_STDC_NFEN 0x08
+/* HREF generation: 0=like SAA7191, 1=HREF is 8xLLC2 clocks earlier */
+#define SAA7191_STDC_HRMV 0x04
+/* general purpose switch 0
+ * (not used with VINO afaik) */
+#define SAA7191_STDC_GPSW0 0x02
+/* SECAM mode bit: 0=other standards, 1=SECAM */
+#define SAA7191_STDC_SECS 0x01
+
+/* I/O and Clock Control Register definitions */
+/* horizontal clock PLL: 0=PLL closed,
+ * 1=PLL circuit open and horizontal freq fixed */
+#define SAA7191_IOCK_HPLL 0x80
+/* colour-difference output enable (outputs UV0-UV7) */
+#define SAA7191_IOCK_OEDC 0x40
+/* H-sync output enable */
+#define SAA7191_IOCK_OEHS 0x20
+/* V-sync output enable */
+#define SAA7191_IOCK_OEVS 0x10
+/* luminance output enable (outputs Y0-Y7) */
+#define SAA7191_IOCK_OEDY 0x08
+/* S-VHS bit (chrominance from CVBS or from chrominance input):
+ * 0=controlled by BYPS-bit, 1=from chrominance input */
+#define SAA7191_IOCK_CHRS 0x04
+/* general purpose switch 2
+ * VINO-specific: 0=used with CVBS, 1=used with S-Video */
+#define SAA7191_IOCK_GPSW2 0x02
+/* general purpose switch 1 */
+/* VINO-specific: 0=always, 1=not used!*/
+#define SAA7191_IOCK_GPSW1 0x01
+
+/* Miscellaneous Control #1 Register definitions */
+/* automatic field detection (50/60Hz standard) */
+#define SAA7191_CTL3_AUFD 0x80
+/* field select: (if AUFD=0)
+ * 0=50Hz (625 lines), 1=60Hz (525 lines) */
+#define SAA7191_CTL3_FSEL 0x40
+/* SECAM cross-colour reduction enable */
+#define SAA7191_CTL3_SXCR 0x20
+/* sync and clamping pulse enable (HCL and HSY outputs) */
+#define SAA7191_CTL3_SCEN 0x10
+/* output format: 0=4:1:1, 1=4:2:2 (4:2:2 for VINO) */
+#define SAA7191_CTL3_OFTS 0x08
+/* luminance delay compensation
+ * 0=0*2/LLC, 1=+1*2/LLC, 2=+2*2/LLC, 3=+3*2/LLC,
+ * 4=-4*2/LLC, 5=-3*2/LLC, 6=-2*2/LLC, 7=-1*2/LLC
+ * step size = 2/LLC = 67.8ns for 50Hz, 81.5ns for 60Hz */
+#define SAA7191_CTL3_YDEL_MASK 0x07
+#define SAA7191_CTL3_YDEL_SHIFT 0
+#define SAA7191_CTL3_YDEL2 0x04
+#define SAA7191_CTL3_YDEL1 0x02
+#define SAA7191_CTL3_YDEL0 0x01
+
+/* Miscellaneous Control #2 Register definitions */
+/* select HREF position
+ * 0=normal, HREF is matched to YUV output port,
+ * 1=HREF is matched to CVBS input port */
+#define SAA7191_CTL4_HRFS 0x04
+/* vertical noise reduction
+ * 0=normal, 1=searching window, 2=auto-deflection, 3=reduction bypassed */
+#define SAA7191_CTL4_VNOI_MASK 0x03
+#define SAA7191_CTL4_VNOI_SHIFT 0
+#define SAA7191_CTL4_VNOI_3 0x03
+#define SAA7191_CTL4_VNOI_2 0x02
+#define SAA7191_CTL4_VNOI_1 0x01
+#define SAA7191_CTL4_VNOI_0 0x00
+
+/* Chrominance Gain Control Register definitions
+ * - for QAM-modulated input signals, effects output amplitude
+ * (SECAM gain fixed)
+ * (nominal values for UV CCIR level) */
+#define SAA7191_CHCV_NTSC 0x2c
+#define SAA7191_CHCV_PAL 0x59
+
+/* Driver interface definitions */
+#define SAA7191_INPUT_COMPOSITE 0
+#define SAA7191_INPUT_SVIDEO 1
+
+#define SAA7191_NORM_PAL 1
+#define SAA7191_NORM_NTSC 2
+#define SAA7191_NORM_SECAM 3
+
+struct saa7191_status {
+ /* 0=no signal, 1=signal detected */
+ int signal;
+ /* 0=50hz (pal) signal, 1=60hz (ntsc) signal */
+ int signal_60hz;
+ /* 0=no color detected, 1=color detected */
+ int color;
+
+ /* current SAA7191_INPUT_ */
+ int input;
+ /* current SAA7191_NORM_ */
+ int norm;
+};
+
+#define SAA7191_BANDPASS_MIN 0x00
+#define SAA7191_BANDPASS_MAX 0x03
+#define SAA7191_BANDPASS_DEFAULT 0x00
+
+#define SAA7191_BANDPASS_WEIGHT_MIN 0x00
+#define SAA7191_BANDPASS_WEIGHT_MAX 0x03
+#define SAA7191_BANDPASS_WEIGHT_DEFAULT 0x01
+
+#define SAA7191_CORING_MIN 0x00
+#define SAA7191_CORING_MAX 0x03
+#define SAA7191_CORING_DEFAULT 0x00
+
+#define SAA7191_HUE_MIN 0x00
+#define SAA7191_HUE_MAX 0xff
+#define SAA7191_HUE_DEFAULT 0x80
+
+#define SAA7191_VTRC_MIN 0x00
+#define SAA7191_VTRC_MAX 0x01
+#define SAA7191_VTRC_DEFAULT 0x00
+
+#define SAA7191_FORCE_COLOUR_MIN 0x00
+#define SAA7191_FORCE_COLOUR_MAX 0x01
+#define SAA7191_FORCE_COLOUR_DEFAULT 0x00
+
+#define SAA7191_CHROMA_GAIN_MIN 0x00
+#define SAA7191_CHROMA_GAIN_MAX 0x03
+#define SAA7191_CHROMA_GAIN_DEFAULT 0x00
+
+#define SAA7191_LUMA_DELAY_MIN -0x04
+#define SAA7191_LUMA_DELAY_MAX 0x03
+#define SAA7191_LUMA_DELAY_DEFAULT 0x01
+
+#define SAA7191_VNR_MIN 0x00
+#define SAA7191_VNR_MAX 0x03
+#define SAA7191_VNR_DEFAULT 0x00
+
+#define SAA7191_CONTROL_BANDPASS (V4L2_CID_PRIVATE_BASE + 0)
+#define SAA7191_CONTROL_BANDPASS_WEIGHT (V4L2_CID_PRIVATE_BASE + 1)
+#define SAA7191_CONTROL_CORING (V4L2_CID_PRIVATE_BASE + 2)
+#define SAA7191_CONTROL_FORCE_COLOUR (V4L2_CID_PRIVATE_BASE + 3)
+#define SAA7191_CONTROL_CHROMA_GAIN (V4L2_CID_PRIVATE_BASE + 4)
+#define SAA7191_CONTROL_VTRC (V4L2_CID_PRIVATE_BASE + 5)
+#define SAA7191_CONTROL_LUMA_DELAY (V4L2_CID_PRIVATE_BASE + 6)
+#define SAA7191_CONTROL_VNR (V4L2_CID_PRIVATE_BASE + 7)
+
+#define DECODER_SAA7191_GET_STATUS _IOR('d', 195, struct saa7191_status)
+#define DECODER_SAA7191_SET_NORM _IOW('d', 196, int)
+
+#endif
--- /dev/null
+/*
+ * Driver for the VINO (Video In No Out) system found in SGI Indys.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License version 2 as published by the Free Software Foundation.
+ *
+ * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi>
+ *
+ * Based on the previous version of the driver for 2.4 kernels by:
+ * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
+ *
+ * v4l2_device/v4l2_subdev conversion by:
+ * Copyright (C) 2009 Hans Verkuil <hverkuil@xs4all.nl>
+ *
+ * Note: this conversion is untested! Please contact the linux-media
+ * mailinglist if you can test this, together with the test results.
+ */
+
+/*
+ * TODO:
+ * - remove "mark pages reserved-hacks" from memory allocation code
+ * and implement fault()
+ * - check decimation, calculating and reporting image size when
+ * using decimation
+ * - implement read(), user mode buffers and overlay (?)
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/time.h>
+#include <linux/kmod.h>
+
+#include <linux/i2c.h>
+
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <linux/mutex.h>
+
+#include <asm/paccess.h>
+#include <asm/io.h>
+#include <asm/sgi/ip22.h>
+#include <asm/sgi/mc.h>
+
+#include "vino.h"
+#include "saa7191.h"
+#include "indycam.h"
+
+/* Uncomment the following line to get lots and lots of (mostly useless)
+ * debug info.
+ * Note that the debug output also slows down the driver significantly */
+// #define VINO_DEBUG
+// #define VINO_DEBUG_INT
+
+#define VINO_MODULE_VERSION "0.0.7"
+
+MODULE_DESCRIPTION("SGI VINO Video4Linux2 driver");
+MODULE_VERSION(VINO_MODULE_VERSION);
+MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>");
+MODULE_LICENSE("GPL");
+
+#ifdef VINO_DEBUG
+#define dprintk(x...) printk("VINO: " x);
+#else
+#define dprintk(x...)
+#endif
+
+#define VINO_NO_CHANNEL 0
+#define VINO_CHANNEL_A 1
+#define VINO_CHANNEL_B 2
+
+#define VINO_PAL_WIDTH 768
+#define VINO_PAL_HEIGHT 576
+#define VINO_NTSC_WIDTH 640
+#define VINO_NTSC_HEIGHT 480
+
+#define VINO_MIN_WIDTH 32
+#define VINO_MIN_HEIGHT 32
+
+#define VINO_CLIPPING_START_ODD_D1 1
+#define VINO_CLIPPING_START_ODD_PAL 15
+#define VINO_CLIPPING_START_ODD_NTSC 12
+
+#define VINO_CLIPPING_START_EVEN_D1 2
+#define VINO_CLIPPING_START_EVEN_PAL 15
+#define VINO_CLIPPING_START_EVEN_NTSC 12
+
+#define VINO_INPUT_CHANNEL_COUNT 3
+
+/* the number is the index for vino_inputs */
+#define VINO_INPUT_NONE -1
+#define VINO_INPUT_COMPOSITE 0
+#define VINO_INPUT_SVIDEO 1
+#define VINO_INPUT_D1 2
+
+#define VINO_PAGE_RATIO (PAGE_SIZE / VINO_PAGE_SIZE)
+
+#define VINO_FIFO_THRESHOLD_DEFAULT 16
+
+#define VINO_FRAMEBUFFER_SIZE ((VINO_PAL_WIDTH \
+ * VINO_PAL_HEIGHT * 4 \
+ + 3 * PAGE_SIZE) & ~(PAGE_SIZE - 1))
+
+#define VINO_FRAMEBUFFER_COUNT_MAX 8
+
+#define VINO_FRAMEBUFFER_UNUSED 0
+#define VINO_FRAMEBUFFER_IN_USE 1
+#define VINO_FRAMEBUFFER_READY 2
+
+#define VINO_QUEUE_ERROR -1
+#define VINO_QUEUE_MAGIC 0x20050125
+
+#define VINO_MEMORY_NONE 0
+#define VINO_MEMORY_MMAP 1
+#define VINO_MEMORY_USERPTR 2
+
+#define VINO_DUMMY_DESC_COUNT 4
+#define VINO_DESC_FETCH_DELAY 5 /* microseconds */
+
+#define VINO_MAX_FRAME_SKIP_COUNT 128
+
+/* the number is the index for vino_data_formats */
+#define VINO_DATA_FMT_NONE -1
+#define VINO_DATA_FMT_GREY 0
+#define VINO_DATA_FMT_RGB332 1
+#define VINO_DATA_FMT_RGB32 2
+#define VINO_DATA_FMT_YUV 3
+
+#define VINO_DATA_FMT_COUNT 4
+
+/* the number is the index for vino_data_norms */
+#define VINO_DATA_NORM_NONE -1
+#define VINO_DATA_NORM_NTSC 0
+#define VINO_DATA_NORM_PAL 1
+#define VINO_DATA_NORM_SECAM 2
+#define VINO_DATA_NORM_D1 3
+
+#define VINO_DATA_NORM_COUNT 4
+
+/* I2C controller flags */
+#define SGI_I2C_FORCE_IDLE (0 << 0)
+#define SGI_I2C_NOT_IDLE (1 << 0)
+#define SGI_I2C_WRITE (0 << 1)
+#define SGI_I2C_READ (1 << 1)
+#define SGI_I2C_RELEASE_BUS (0 << 2)
+#define SGI_I2C_HOLD_BUS (1 << 2)
+#define SGI_I2C_XFER_DONE (0 << 4)
+#define SGI_I2C_XFER_BUSY (1 << 4)
+#define SGI_I2C_ACK (0 << 5)
+#define SGI_I2C_NACK (1 << 5)
+#define SGI_I2C_BUS_OK (0 << 7)
+#define SGI_I2C_BUS_ERR (1 << 7)
+
+/* Internal data structure definitions */
+
+struct vino_input {
+ char *name;
+ v4l2_std_id std;
+};
+
+struct vino_clipping {
+ unsigned int left, right, top, bottom;
+};
+
+struct vino_data_format {
+ /* the description */
+ char *description;
+ /* bytes per pixel */
+ unsigned int bpp;
+ /* V4L2 fourcc code */
+ __u32 pixelformat;
+ /* V4L2 colorspace (duh!) */
+ enum v4l2_colorspace colorspace;
+};
+
+struct vino_data_norm {
+ char *description;
+ unsigned int width, height;
+ struct vino_clipping odd;
+ struct vino_clipping even;
+
+ v4l2_std_id std;
+ unsigned int fps_min, fps_max;
+ __u32 framelines;
+};
+
+struct vino_descriptor_table {
+ /* the number of PAGE_SIZE sized pages in the buffer */
+ unsigned int page_count;
+ /* virtual (kmalloc'd) pointers to the actual data
+ * (in PAGE_SIZE chunks, used with mmap streaming) */
+ unsigned long *virtual;
+
+ /* cpu address for the VINO descriptor table
+ * (contains DMA addresses, VINO_PAGE_SIZE chunks) */
+ unsigned long *dma_cpu;
+ /* dma address for the VINO descriptor table
+ * (contains DMA addresses, VINO_PAGE_SIZE chunks) */
+ dma_addr_t dma;
+};
+
+struct vino_framebuffer {
+ /* identifier nubmer */
+ unsigned int id;
+ /* the length of the whole buffer */
+ unsigned int size;
+ /* the length of actual data in buffer */
+ unsigned int data_size;
+ /* the data format */
+ unsigned int data_format;
+ /* the state of buffer data */
+ unsigned int state;
+ /* is the buffer mapped in user space? */
+ unsigned int map_count;
+ /* memory offset for mmap() */
+ unsigned int offset;
+ /* frame counter */
+ unsigned int frame_counter;
+ /* timestamp (written when image capture finishes) */
+ struct timeval timestamp;
+
+ struct vino_descriptor_table desc_table;
+
+ spinlock_t state_lock;
+};
+
+struct vino_framebuffer_fifo {
+ unsigned int length;
+
+ unsigned int used;
+ unsigned int head;
+ unsigned int tail;
+
+ unsigned int data[VINO_FRAMEBUFFER_COUNT_MAX];
+};
+
+struct vino_framebuffer_queue {
+ unsigned int magic;
+
+ /* VINO_MEMORY_NONE, VINO_MEMORY_MMAP or VINO_MEMORY_USERPTR */
+ unsigned int type;
+ unsigned int length;
+
+ /* data field of in and out contain index numbers for buffer */
+ struct vino_framebuffer_fifo in;
+ struct vino_framebuffer_fifo out;
+
+ struct vino_framebuffer *buffer[VINO_FRAMEBUFFER_COUNT_MAX];
+
+ spinlock_t queue_lock;
+ struct mutex queue_mutex;
+ wait_queue_head_t frame_wait_queue;
+};
+
+struct vino_interrupt_data {
+ struct timeval timestamp;
+ unsigned int frame_counter;
+ unsigned int skip_count;
+ unsigned int skip;
+};
+
+struct vino_channel_settings {
+ unsigned int channel;
+
+ int input;
+ unsigned int data_format;
+ unsigned int data_norm;
+ struct vino_clipping clipping;
+ unsigned int decimation;
+ unsigned int line_size;
+ unsigned int alpha;
+ unsigned int fps;
+ unsigned int framert_reg;
+
+ unsigned int fifo_threshold;
+
+ struct vino_framebuffer_queue fb_queue;
+
+ /* number of the current field */
+ unsigned int field;
+
+ /* read in progress */
+ int reading;
+ /* streaming is active */
+ int streaming;
+ /* the driver is currently processing the queue */
+ int capturing;
+
+ struct mutex mutex;
+ spinlock_t capture_lock;
+
+ unsigned int users;
+
+ struct vino_interrupt_data int_data;
+
+ /* V4L support */
+ struct video_device *vdev;
+};
+
+struct vino_settings {
+ struct v4l2_device v4l2_dev;
+ struct vino_channel_settings a;
+ struct vino_channel_settings b;
+
+ /* the channel which owns this client:
+ * VINO_NO_CHANNEL, VINO_CHANNEL_A or VINO_CHANNEL_B */
+ unsigned int decoder_owner;
+ struct v4l2_subdev *decoder;
+ unsigned int camera_owner;
+ struct v4l2_subdev *camera;
+
+ /* a lock for vino register access */
+ spinlock_t vino_lock;
+ /* a lock for channel input changes */
+ spinlock_t input_lock;
+
+ unsigned long dummy_page;
+ struct vino_descriptor_table dummy_desc_table;
+};
+
+/* Module parameters */
+
+/*
+ * Using vino_pixel_conversion the ABGR32-format pixels supplied
+ * by the VINO chip can be converted to more common formats
+ * like RGBA32 (or probably RGB24 in the future). This way we
+ * can give out data that can be specified correctly with
+ * the V4L2-definitions.
+ *
+ * The pixel format is specified as RGBA32 when no conversion
+ * is used.
+ *
+ * Note that this only affects the 32-bit bit depth.
+ *
+ * Use non-zero value to enable conversion.
+ */
+static int vino_pixel_conversion;
+
+module_param_named(pixelconv, vino_pixel_conversion, int, 0);
+
+MODULE_PARM_DESC(pixelconv,
+ "enable pixel conversion (non-zero value enables)");
+
+/* Internal data structures */
+
+static struct sgi_vino *vino;
+
+static struct vino_settings *vino_drvdata;
+
+#define camera_call(o, f, args...) \
+ v4l2_subdev_call(vino_drvdata->camera, o, f, ##args)
+#define decoder_call(o, f, args...) \
+ v4l2_subdev_call(vino_drvdata->decoder, o, f, ##args)
+
+static const char *vino_driver_name = "vino";
+static const char *vino_driver_description = "SGI VINO";
+static const char *vino_bus_name = "GIO64 bus";
+static const char *vino_vdev_name_a = "SGI VINO Channel A";
+static const char *vino_vdev_name_b = "SGI VINO Channel B";
+
+static void vino_capture_tasklet(unsigned long channel);
+
+DECLARE_TASKLET(vino_tasklet_a, vino_capture_tasklet, VINO_CHANNEL_A);
+DECLARE_TASKLET(vino_tasklet_b, vino_capture_tasklet, VINO_CHANNEL_B);
+
+static const struct vino_input vino_inputs[] = {
+ {
+ .name = "Composite",
+ .std = V4L2_STD_NTSC | V4L2_STD_PAL
+ | V4L2_STD_SECAM,
+ }, {
+ .name = "S-Video",
+ .std = V4L2_STD_NTSC | V4L2_STD_PAL
+ | V4L2_STD_SECAM,
+ }, {
+ .name = "D1/IndyCam",
+ .std = V4L2_STD_NTSC,
+ }
+};
+
+static const struct vino_data_format vino_data_formats[] = {
+ {
+ .description = "8-bit greyscale",
+ .bpp = 1,
+ .pixelformat = V4L2_PIX_FMT_GREY,
+ .colorspace = V4L2_COLORSPACE_SMPTE170M,
+ }, {
+ .description = "8-bit dithered RGB 3-3-2",
+ .bpp = 1,
+ .pixelformat = V4L2_PIX_FMT_RGB332,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ }, {
+ .description = "32-bit RGB",
+ .bpp = 4,
+ .pixelformat = V4L2_PIX_FMT_RGB32,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ }, {
+ .description = "YUV 4:2:2",
+ .bpp = 2,
+ .pixelformat = V4L2_PIX_FMT_YUYV, // XXX: swapped?
+ .colorspace = V4L2_COLORSPACE_SMPTE170M,
+ }
+};
+
+static const struct vino_data_norm vino_data_norms[] = {
+ {
+ .description = "NTSC",
+ .std = V4L2_STD_NTSC,
+ .fps_min = 6,
+ .fps_max = 30,
+ .framelines = 525,
+ .width = VINO_NTSC_WIDTH,
+ .height = VINO_NTSC_HEIGHT,
+ .odd = {
+ .top = VINO_CLIPPING_START_ODD_NTSC,
+ .left = 0,
+ .bottom = VINO_CLIPPING_START_ODD_NTSC
+ + VINO_NTSC_HEIGHT / 2 - 1,
+ .right = VINO_NTSC_WIDTH,
+ },
+ .even = {
+ .top = VINO_CLIPPING_START_EVEN_NTSC,
+ .left = 0,
+ .bottom = VINO_CLIPPING_START_EVEN_NTSC
+ + VINO_NTSC_HEIGHT / 2 - 1,
+ .right = VINO_NTSC_WIDTH,
+ },
+ }, {
+ .description = "PAL",
+ .std = V4L2_STD_PAL,
+ .fps_min = 5,
+ .fps_max = 25,
+ .framelines = 625,
+ .width = VINO_PAL_WIDTH,
+ .height = VINO_PAL_HEIGHT,
+ .odd = {
+ .top = VINO_CLIPPING_START_ODD_PAL,
+ .left = 0,
+ .bottom = VINO_CLIPPING_START_ODD_PAL
+ + VINO_PAL_HEIGHT / 2 - 1,
+ .right = VINO_PAL_WIDTH,
+ },
+ .even = {
+ .top = VINO_CLIPPING_START_EVEN_PAL,
+ .left = 0,
+ .bottom = VINO_CLIPPING_START_EVEN_PAL
+ + VINO_PAL_HEIGHT / 2 - 1,
+ .right = VINO_PAL_WIDTH,
+ },
+ }, {
+ .description = "SECAM",
+ .std = V4L2_STD_SECAM,
+ .fps_min = 5,
+ .fps_max = 25,
+ .framelines = 625,
+ .width = VINO_PAL_WIDTH,
+ .height = VINO_PAL_HEIGHT,
+ .odd = {
+ .top = VINO_CLIPPING_START_ODD_PAL,
+ .left = 0,
+ .bottom = VINO_CLIPPING_START_ODD_PAL
+ + VINO_PAL_HEIGHT / 2 - 1,
+ .right = VINO_PAL_WIDTH,
+ },
+ .even = {
+ .top = VINO_CLIPPING_START_EVEN_PAL,
+ .left = 0,
+ .bottom = VINO_CLIPPING_START_EVEN_PAL
+ + VINO_PAL_HEIGHT / 2 - 1,
+ .right = VINO_PAL_WIDTH,
+ },
+ }, {
+ .description = "NTSC/D1",
+ .std = V4L2_STD_NTSC,
+ .fps_min = 6,
+ .fps_max = 30,
+ .framelines = 525,
+ .width = VINO_NTSC_WIDTH,
+ .height = VINO_NTSC_HEIGHT,
+ .odd = {
+ .top = VINO_CLIPPING_START_ODD_D1,
+ .left = 0,
+ .bottom = VINO_CLIPPING_START_ODD_D1
+ + VINO_NTSC_HEIGHT / 2 - 1,
+ .right = VINO_NTSC_WIDTH,
+ },
+ .even = {
+ .top = VINO_CLIPPING_START_EVEN_D1,
+ .left = 0,
+ .bottom = VINO_CLIPPING_START_EVEN_D1
+ + VINO_NTSC_HEIGHT / 2 - 1,
+ .right = VINO_NTSC_WIDTH,
+ },
+ }
+};
+
+#define VINO_INDYCAM_V4L2_CONTROL_COUNT 9
+
+struct v4l2_queryctrl vino_indycam_v4l2_controls[] = {
+ {
+ .id = V4L2_CID_AUTOGAIN,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Automatic Gain Control",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = INDYCAM_AGC_DEFAULT,
+ }, {
+ .id = V4L2_CID_AUTO_WHITE_BALANCE,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Automatic White Balance",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = INDYCAM_AWB_DEFAULT,
+ }, {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Gain",
+ .minimum = INDYCAM_GAIN_MIN,
+ .maximum = INDYCAM_GAIN_MAX,
+ .step = 1,
+ .default_value = INDYCAM_GAIN_DEFAULT,
+ }, {
+ .id = INDYCAM_CONTROL_RED_SATURATION,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Red Saturation",
+ .minimum = INDYCAM_RED_SATURATION_MIN,
+ .maximum = INDYCAM_RED_SATURATION_MAX,
+ .step = 1,
+ .default_value = INDYCAM_RED_SATURATION_DEFAULT,
+ }, {
+ .id = INDYCAM_CONTROL_BLUE_SATURATION,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Blue Saturation",
+ .minimum = INDYCAM_BLUE_SATURATION_MIN,
+ .maximum = INDYCAM_BLUE_SATURATION_MAX,
+ .step = 1,
+ .default_value = INDYCAM_BLUE_SATURATION_DEFAULT,
+ }, {
+ .id = V4L2_CID_RED_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Red Balance",
+ .minimum = INDYCAM_RED_BALANCE_MIN,
+ .maximum = INDYCAM_RED_BALANCE_MAX,
+ .step = 1,
+ .default_value = INDYCAM_RED_BALANCE_DEFAULT,
+ }, {
+ .id = V4L2_CID_BLUE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Blue Balance",
+ .minimum = INDYCAM_BLUE_BALANCE_MIN,
+ .maximum = INDYCAM_BLUE_BALANCE_MAX,
+ .step = 1,
+ .default_value = INDYCAM_BLUE_BALANCE_DEFAULT,
+ }, {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Shutter Control",
+ .minimum = INDYCAM_SHUTTER_MIN,
+ .maximum = INDYCAM_SHUTTER_MAX,
+ .step = 1,
+ .default_value = INDYCAM_SHUTTER_DEFAULT,
+ }, {
+ .id = V4L2_CID_GAMMA,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Gamma",
+ .minimum = INDYCAM_GAMMA_MIN,
+ .maximum = INDYCAM_GAMMA_MAX,
+ .step = 1,
+ .default_value = INDYCAM_GAMMA_DEFAULT,
+ }
+};
+
+#define VINO_SAA7191_V4L2_CONTROL_COUNT 9
+
+struct v4l2_queryctrl vino_saa7191_v4l2_controls[] = {
+ {
+ .id = V4L2_CID_HUE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Hue",
+ .minimum = SAA7191_HUE_MIN,
+ .maximum = SAA7191_HUE_MAX,
+ .step = 1,
+ .default_value = SAA7191_HUE_DEFAULT,
+ }, {
+ .id = SAA7191_CONTROL_BANDPASS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Luminance Bandpass",
+ .minimum = SAA7191_BANDPASS_MIN,
+ .maximum = SAA7191_BANDPASS_MAX,
+ .step = 1,
+ .default_value = SAA7191_BANDPASS_DEFAULT,
+ }, {
+ .id = SAA7191_CONTROL_BANDPASS_WEIGHT,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Luminance Bandpass Weight",
+ .minimum = SAA7191_BANDPASS_WEIGHT_MIN,
+ .maximum = SAA7191_BANDPASS_WEIGHT_MAX,
+ .step = 1,
+ .default_value = SAA7191_BANDPASS_WEIGHT_DEFAULT,
+ }, {
+ .id = SAA7191_CONTROL_CORING,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "HF Luminance Coring",
+ .minimum = SAA7191_CORING_MIN,
+ .maximum = SAA7191_CORING_MAX,
+ .step = 1,
+ .default_value = SAA7191_CORING_DEFAULT,
+ }, {
+ .id = SAA7191_CONTROL_FORCE_COLOUR,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Force Colour",
+ .minimum = SAA7191_FORCE_COLOUR_MIN,
+ .maximum = SAA7191_FORCE_COLOUR_MAX,
+ .step = 1,
+ .default_value = SAA7191_FORCE_COLOUR_DEFAULT,
+ }, {
+ .id = SAA7191_CONTROL_CHROMA_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Chrominance Gain Control",
+ .minimum = SAA7191_CHROMA_GAIN_MIN,
+ .maximum = SAA7191_CHROMA_GAIN_MAX,
+ .step = 1,
+ .default_value = SAA7191_CHROMA_GAIN_DEFAULT,
+ }, {
+ .id = SAA7191_CONTROL_VTRC,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "VTR Time Constant",
+ .minimum = SAA7191_VTRC_MIN,
+ .maximum = SAA7191_VTRC_MAX,
+ .step = 1,
+ .default_value = SAA7191_VTRC_DEFAULT,
+ }, {
+ .id = SAA7191_CONTROL_LUMA_DELAY,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Luminance Delay Compensation",
+ .minimum = SAA7191_LUMA_DELAY_MIN,
+ .maximum = SAA7191_LUMA_DELAY_MAX,
+ .step = 1,
+ .default_value = SAA7191_LUMA_DELAY_DEFAULT,
+ }, {
+ .id = SAA7191_CONTROL_VNR,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Vertical Noise Reduction",
+ .minimum = SAA7191_VNR_MIN,
+ .maximum = SAA7191_VNR_MAX,
+ .step = 1,
+ .default_value = SAA7191_VNR_DEFAULT,
+ }
+};
+
+/* VINO framebuffer/DMA descriptor management */
+
+static void vino_free_buffer_with_count(struct vino_framebuffer *fb,
+ unsigned int count)
+{
+ unsigned int i;
+
+ dprintk("vino_free_buffer_with_count(): count = %d\n", count);
+
+ for (i = 0; i < count; i++) {
+ ClearPageReserved(virt_to_page((void *)fb->desc_table.virtual[i]));
+ dma_unmap_single(NULL,
+ fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i],
+ PAGE_SIZE, DMA_FROM_DEVICE);
+ free_page(fb->desc_table.virtual[i]);
+ }
+
+ dma_free_coherent(NULL,
+ VINO_PAGE_RATIO * (fb->desc_table.page_count + 4) *
+ sizeof(dma_addr_t), (void *)fb->desc_table.dma_cpu,
+ fb->desc_table.dma);
+ kfree(fb->desc_table.virtual);
+
+ memset(fb, 0, sizeof(struct vino_framebuffer));
+}
+
+static void vino_free_buffer(struct vino_framebuffer *fb)
+{
+ vino_free_buffer_with_count(fb, fb->desc_table.page_count);
+}
+
+static int vino_allocate_buffer(struct vino_framebuffer *fb,
+ unsigned int size)
+{
+ unsigned int count, i, j;
+ int ret = 0;
+
+ dprintk("vino_allocate_buffer():\n");
+
+ if (size < 1)
+ return -EINVAL;
+
+ memset(fb, 0, sizeof(struct vino_framebuffer));
+
+ count = ((size / PAGE_SIZE) + 4) & ~3;
+
+ dprintk("vino_allocate_buffer(): size = %d, count = %d\n",
+ size, count);
+
+ /* allocate memory for table with virtual (page) addresses */
+ fb->desc_table.virtual =
+ kmalloc(count * sizeof(unsigned long), GFP_KERNEL);
+ if (!fb->desc_table.virtual)
+ return -ENOMEM;
+
+ /* allocate memory for table with dma addresses
+ * (has space for four extra descriptors) */
+ fb->desc_table.dma_cpu =
+ dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) *
+ sizeof(dma_addr_t), &fb->desc_table.dma,
+ GFP_KERNEL | GFP_DMA);
+ if (!fb->desc_table.dma_cpu) {
+ ret = -ENOMEM;
+ goto out_free_virtual;
+ }
+
+ /* allocate pages for the buffer and acquire the according
+ * dma addresses */
+ for (i = 0; i < count; i++) {
+ dma_addr_t dma_data_addr;
+
+ fb->desc_table.virtual[i] =
+ get_zeroed_page(GFP_KERNEL | GFP_DMA);
+ if (!fb->desc_table.virtual[i]) {
+ ret = -ENOBUFS;
+ break;
+ }
+
+ dma_data_addr =
+ dma_map_single(NULL,
+ (void *)fb->desc_table.virtual[i],
+ PAGE_SIZE, DMA_FROM_DEVICE);
+
+ for (j = 0; j < VINO_PAGE_RATIO; j++) {
+ fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] =
+ dma_data_addr + VINO_PAGE_SIZE * j;
+ }
+
+ SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i]));
+ }
+
+ /* page_count needs to be set anyway, because the descriptor table has
+ * been allocated according to this number */
+ fb->desc_table.page_count = count;
+
+ if (ret) {
+ /* the descriptor with index i doesn't contain
+ * a valid address yet */
+ vino_free_buffer_with_count(fb, i);
+ return ret;
+ }
+
+ //fb->size = size;
+ fb->size = count * PAGE_SIZE;
+ fb->data_format = VINO_DATA_FMT_NONE;
+
+ /* set the dma stop-bit for the last (count+1)th descriptor */
+ fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP;
+ return 0;
+
+ out_free_virtual:
+ kfree(fb->desc_table.virtual);
+ return ret;
+}
+
+#if 0
+/* user buffers not fully implemented yet */
+static int vino_prepare_user_buffer(struct vino_framebuffer *fb,
+ void *user,
+ unsigned int size)
+{
+ unsigned int count, i, j;
+ int ret = 0;
+
+ dprintk("vino_prepare_user_buffer():\n");
+
+ if (size < 1)
+ return -EINVAL;
+
+ memset(fb, 0, sizeof(struct vino_framebuffer));
+
+ count = ((size / PAGE_SIZE)) & ~3;
+
+ dprintk("vino_prepare_user_buffer(): size = %d, count = %d\n",
+ size, count);
+
+ /* allocate memory for table with virtual (page) addresses */
+ fb->desc_table.virtual = (unsigned long *)
+ kmalloc(count * sizeof(unsigned long), GFP_KERNEL);
+ if (!fb->desc_table.virtual)
+ return -ENOMEM;
+
+ /* allocate memory for table with dma addresses
+ * (has space for four extra descriptors) */
+ fb->desc_table.dma_cpu =
+ dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) *
+ sizeof(dma_addr_t), &fb->desc_table.dma,
+ GFP_KERNEL | GFP_DMA);
+ if (!fb->desc_table.dma_cpu) {
+ ret = -ENOMEM;
+ goto out_free_virtual;
+ }
+
+ /* allocate pages for the buffer and acquire the according
+ * dma addresses */
+ for (i = 0; i < count; i++) {
+ dma_addr_t dma_data_addr;
+
+ fb->desc_table.virtual[i] =
+ get_zeroed_page(GFP_KERNEL | GFP_DMA);
+ if (!fb->desc_table.virtual[i]) {
+ ret = -ENOBUFS;
+ break;
+ }
+
+ dma_data_addr =
+ dma_map_single(NULL,
+ (void *)fb->desc_table.virtual[i],
+ PAGE_SIZE, DMA_FROM_DEVICE);
+
+ for (j = 0; j < VINO_PAGE_RATIO; j++) {
+ fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] =
+ dma_data_addr + VINO_PAGE_SIZE * j;
+ }
+
+ SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i]));
+ }
+
+ /* page_count needs to be set anyway, because the descriptor table has
+ * been allocated according to this number */
+ fb->desc_table.page_count = count;
+
+ if (ret) {
+ /* the descriptor with index i doesn't contain
+ * a valid address yet */
+ vino_free_buffer_with_count(fb, i);
+ return ret;
+ }
+
+ //fb->size = size;
+ fb->size = count * PAGE_SIZE;
+
+ /* set the dma stop-bit for the last (count+1)th descriptor */
+ fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP;
+ return 0;
+
+ out_free_virtual:
+ kfree(fb->desc_table.virtual);
+ return ret;
+}
+#endif
+
+static void vino_sync_buffer(struct vino_framebuffer *fb)
+{
+ int i;
+
+ dprintk("vino_sync_buffer():\n");
+
+ for (i = 0; i < fb->desc_table.page_count; i++)
+ dma_sync_single_for_cpu(NULL,
+ fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i],
+ PAGE_SIZE, DMA_FROM_DEVICE);
+}
+
+/* Framebuffer fifo functions (need to be locked externally) */
+
+static inline void vino_fifo_init(struct vino_framebuffer_fifo *f,
+ unsigned int length)
+{
+ f->length = 0;
+ f->used = 0;
+ f->head = 0;
+ f->tail = 0;
+
+ if (length > VINO_FRAMEBUFFER_COUNT_MAX)
+ length = VINO_FRAMEBUFFER_COUNT_MAX;
+
+ f->length = length;
+}
+
+/* returns true/false */
+static inline int vino_fifo_has_id(struct vino_framebuffer_fifo *f,
+ unsigned int id)
+{
+ unsigned int i;
+
+ for (i = f->head; i == (f->tail - 1); i = (i + 1) % f->length) {
+ if (f->data[i] == id)
+ return 1;
+ }
+
+ return 0;
+}
+
+#if 0
+/* returns true/false */
+static inline int vino_fifo_full(struct vino_framebuffer_fifo *f)
+{
+ return (f->used == f->length);
+}
+#endif
+
+static inline unsigned int vino_fifo_get_used(struct vino_framebuffer_fifo *f)
+{
+ return f->used;
+}
+
+static int vino_fifo_enqueue(struct vino_framebuffer_fifo *f, unsigned int id)
+{
+ if (id >= f->length) {
+ return VINO_QUEUE_ERROR;
+ }
+
+ if (vino_fifo_has_id(f, id)) {
+ return VINO_QUEUE_ERROR;
+ }
+
+ if (f->used < f->length) {
+ f->data[f->tail] = id;
+ f->tail = (f->tail + 1) % f->length;
+ f->used++;
+ } else {
+ return VINO_QUEUE_ERROR;
+ }
+
+ return 0;
+}
+
+static int vino_fifo_peek(struct vino_framebuffer_fifo *f, unsigned int *id)
+{
+ if (f->used > 0) {
+ *id = f->data[f->head];
+ } else {
+ return VINO_QUEUE_ERROR;
+ }
+
+ return 0;
+}
+
+static int vino_fifo_dequeue(struct vino_framebuffer_fifo *f, unsigned int *id)
+{
+ if (f->used > 0) {
+ *id = f->data[f->head];
+ f->head = (f->head + 1) % f->length;
+ f->used--;
+ } else {
+ return VINO_QUEUE_ERROR;
+ }
+
+ return 0;
+}
+
+/* Framebuffer queue functions */
+
+/* execute with queue_lock locked */
+static void vino_queue_free_with_count(struct vino_framebuffer_queue *q,
+ unsigned int length)
+{
+ unsigned int i;
+
+ q->length = 0;
+ memset(&q->in, 0, sizeof(struct vino_framebuffer_fifo));
+ memset(&q->out, 0, sizeof(struct vino_framebuffer_fifo));
+ for (i = 0; i < length; i++) {
+ dprintk("vino_queue_free_with_count(): freeing buffer %d\n",
+ i);
+ vino_free_buffer(q->buffer[i]);
+ kfree(q->buffer[i]);
+ }
+
+ q->type = VINO_MEMORY_NONE;
+ q->magic = 0;
+}
+
+static void vino_queue_free(struct vino_framebuffer_queue *q)
+{
+ dprintk("vino_queue_free():\n");
+
+ if (q->magic != VINO_QUEUE_MAGIC)
+ return;
+ if (q->type != VINO_MEMORY_MMAP)
+ return;
+
+ mutex_lock(&q->queue_mutex);
+
+ vino_queue_free_with_count(q, q->length);
+
+ mutex_unlock(&q->queue_mutex);
+}
+
+static int vino_queue_init(struct vino_framebuffer_queue *q,
+ unsigned int *length)
+{
+ unsigned int i;
+ int ret = 0;
+
+ dprintk("vino_queue_init(): length = %d\n", *length);
+
+ if (q->magic == VINO_QUEUE_MAGIC) {
+ dprintk("vino_queue_init(): queue already initialized!\n");
+ return -EINVAL;
+ }
+
+ if (q->type != VINO_MEMORY_NONE) {
+ dprintk("vino_queue_init(): queue already initialized!\n");
+ return -EINVAL;
+ }
+
+ if (*length < 1)
+ return -EINVAL;
+
+ mutex_lock(&q->queue_mutex);
+
+ if (*length > VINO_FRAMEBUFFER_COUNT_MAX)
+ *length = VINO_FRAMEBUFFER_COUNT_MAX;
+
+ q->length = 0;
+
+ for (i = 0; i < *length; i++) {
+ dprintk("vino_queue_init(): allocating buffer %d\n", i);
+ q->buffer[i] = kmalloc(sizeof(struct vino_framebuffer),
+ GFP_KERNEL);
+ if (!q->buffer[i]) {
+ dprintk("vino_queue_init(): kmalloc() failed\n");
+ ret = -ENOMEM;
+ break;
+ }
+
+ ret = vino_allocate_buffer(q->buffer[i],
+ VINO_FRAMEBUFFER_SIZE);
+ if (ret) {
+ kfree(q->buffer[i]);
+ dprintk("vino_queue_init(): "
+ "vino_allocate_buffer() failed\n");
+ break;
+ }
+
+ q->buffer[i]->id = i;
+ if (i > 0) {
+ q->buffer[i]->offset = q->buffer[i - 1]->offset +
+ q->buffer[i - 1]->size;
+ } else {
+ q->buffer[i]->offset = 0;
+ }
+
+ spin_lock_init(&q->buffer[i]->state_lock);
+
+ dprintk("vino_queue_init(): buffer = %d, offset = %d, "
+ "size = %d\n", i, q->buffer[i]->offset,
+ q->buffer[i]->size);
+ }
+
+ if (ret) {
+ vino_queue_free_with_count(q, i);
+ *length = 0;
+ } else {
+ q->length = *length;
+ vino_fifo_init(&q->in, q->length);
+ vino_fifo_init(&q->out, q->length);
+ q->type = VINO_MEMORY_MMAP;
+ q->magic = VINO_QUEUE_MAGIC;
+ }
+
+ mutex_unlock(&q->queue_mutex);
+
+ return ret;
+}
+
+static struct vino_framebuffer *vino_queue_add(struct
+ vino_framebuffer_queue *q,
+ unsigned int id)
+{
+ struct vino_framebuffer *ret = NULL;
+ unsigned int total;
+ unsigned long flags;
+
+ dprintk("vino_queue_add(): id = %d\n", id);
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return ret;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+
+ if (q->length == 0)
+ goto out;
+
+ if (id >= q->length)
+ goto out;
+
+ /* not needed?: if (vino_fifo_full(&q->out)) {
+ goto out;
+ }*/
+ /* check that outgoing queue isn't already full
+ * (or that it won't become full) */
+ total = vino_fifo_get_used(&q->in) +
+ vino_fifo_get_used(&q->out);
+ if (total >= q->length)
+ goto out;
+
+ if (vino_fifo_enqueue(&q->in, id))
+ goto out;
+
+ ret = q->buffer[id];
+
+out:
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return ret;
+}
+
+static struct vino_framebuffer *vino_queue_transfer(struct
+ vino_framebuffer_queue *q)
+{
+ struct vino_framebuffer *ret = NULL;
+ struct vino_framebuffer *fb;
+ int id;
+ unsigned long flags;
+
+ dprintk("vino_queue_transfer():\n");
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return ret;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+
+ if (q->length == 0)
+ goto out;
+
+ // now this actually removes an entry from the incoming queue
+ if (vino_fifo_dequeue(&q->in, &id)) {
+ goto out;
+ }
+
+ dprintk("vino_queue_transfer(): id = %d\n", id);
+ fb = q->buffer[id];
+
+ // we have already checked that the outgoing queue is not full, but...
+ if (vino_fifo_enqueue(&q->out, id)) {
+ printk(KERN_ERR "vino_queue_transfer(): "
+ "outgoing queue is full, this shouldn't happen!\n");
+ goto out;
+ }
+
+ ret = fb;
+out:
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return ret;
+}
+
+/* returns true/false */
+static int vino_queue_incoming_contains(struct vino_framebuffer_queue *q,
+ unsigned int id)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return ret;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+
+ if (q->length == 0)
+ goto out;
+
+ ret = vino_fifo_has_id(&q->in, id);
+
+out:
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return ret;
+}
+
+/* returns true/false */
+static int vino_queue_outgoing_contains(struct vino_framebuffer_queue *q,
+ unsigned int id)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return ret;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+
+ if (q->length == 0)
+ goto out;
+
+ ret = vino_fifo_has_id(&q->out, id);
+
+out:
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return ret;
+}
+
+static int vino_queue_get_incoming(struct vino_framebuffer_queue *q,
+ unsigned int *used)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return VINO_QUEUE_ERROR;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+
+ if (q->length == 0) {
+ ret = VINO_QUEUE_ERROR;
+ goto out;
+ }
+
+ *used = vino_fifo_get_used(&q->in);
+
+out:
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return ret;
+}
+
+static int vino_queue_get_outgoing(struct vino_framebuffer_queue *q,
+ unsigned int *used)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return VINO_QUEUE_ERROR;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+
+ if (q->length == 0) {
+ ret = VINO_QUEUE_ERROR;
+ goto out;
+ }
+
+ *used = vino_fifo_get_used(&q->out);
+
+out:
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return ret;
+}
+
+#if 0
+static int vino_queue_get_total(struct vino_framebuffer_queue *q,
+ unsigned int *total)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return VINO_QUEUE_ERROR;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+
+ if (q->length == 0) {
+ ret = VINO_QUEUE_ERROR;
+ goto out;
+ }
+
+ *total = vino_fifo_get_used(&q->in) +
+ vino_fifo_get_used(&q->out);
+
+out:
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return ret;
+}
+#endif
+
+static struct vino_framebuffer *vino_queue_peek(struct
+ vino_framebuffer_queue *q,
+ unsigned int *id)
+{
+ struct vino_framebuffer *ret = NULL;
+ unsigned long flags;
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return ret;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+
+ if (q->length == 0)
+ goto out;
+
+ if (vino_fifo_peek(&q->in, id)) {
+ goto out;
+ }
+
+ ret = q->buffer[*id];
+out:
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return ret;
+}
+
+static struct vino_framebuffer *vino_queue_remove(struct
+ vino_framebuffer_queue *q,
+ unsigned int *id)
+{
+ struct vino_framebuffer *ret = NULL;
+ unsigned long flags;
+ dprintk("vino_queue_remove():\n");
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return ret;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+
+ if (q->length == 0)
+ goto out;
+
+ if (vino_fifo_dequeue(&q->out, id)) {
+ goto out;
+ }
+
+ dprintk("vino_queue_remove(): id = %d\n", *id);
+ ret = q->buffer[*id];
+out:
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return ret;
+}
+
+static struct
+vino_framebuffer *vino_queue_get_buffer(struct vino_framebuffer_queue *q,
+ unsigned int id)
+{
+ struct vino_framebuffer *ret = NULL;
+ unsigned long flags;
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return ret;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+
+ if (q->length == 0)
+ goto out;
+
+ if (id >= q->length)
+ goto out;
+
+ ret = q->buffer[id];
+ out:
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return ret;
+}
+
+static unsigned int vino_queue_get_length(struct vino_framebuffer_queue *q)
+{
+ unsigned int length = 0;
+ unsigned long flags;
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return length;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+ length = q->length;
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return length;
+}
+
+static int vino_queue_has_mapped_buffers(struct vino_framebuffer_queue *q)
+{
+ unsigned int i;
+ int ret = 0;
+ unsigned long flags;
+
+ if (q->magic != VINO_QUEUE_MAGIC) {
+ return ret;
+ }
+
+ spin_lock_irqsave(&q->queue_lock, flags);
+ for (i = 0; i < q->length; i++) {
+ if (q->buffer[i]->map_count > 0) {
+ ret = 1;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&q->queue_lock, flags);
+
+ return ret;
+}
+
+/* VINO functions */
+
+/* execute with input_lock locked */
+static void vino_update_line_size(struct vino_channel_settings *vcs)
+{
+ unsigned int w = vcs->clipping.right - vcs->clipping.left;
+ unsigned int d = vcs->decimation;
+ unsigned int bpp = vino_data_formats[vcs->data_format].bpp;
+ unsigned int lsize;
+
+ dprintk("update_line_size(): before: w = %d, d = %d, "
+ "line_size = %d\n", w, d, vcs->line_size);
+
+ /* line size must be multiple of 8 bytes */
+ lsize = (bpp * (w / d)) & ~7;
+ w = (lsize / bpp) * d;
+
+ vcs->clipping.right = vcs->clipping.left + w;
+ vcs->line_size = lsize;
+
+ dprintk("update_line_size(): after: w = %d, d = %d, "
+ "line_size = %d\n", w, d, vcs->line_size);
+}
+
+/* execute with input_lock locked */
+static void vino_set_clipping(struct vino_channel_settings *vcs,
+ unsigned int x, unsigned int y,
+ unsigned int w, unsigned int h)
+{
+ unsigned int maxwidth, maxheight;
+ unsigned int d;
+
+ maxwidth = vino_data_norms[vcs->data_norm].width;
+ maxheight = vino_data_norms[vcs->data_norm].height;
+ d = vcs->decimation;
+
+ y &= ~1; /* odd/even fields */
+
+ if (x > maxwidth) {
+ x = 0;
+ }
+ if (y > maxheight) {
+ y = 0;
+ }
+
+ if (((w / d) < VINO_MIN_WIDTH)
+ || ((h / d) < VINO_MIN_HEIGHT)) {
+ w = VINO_MIN_WIDTH * d;
+ h = VINO_MIN_HEIGHT * d;
+ }
+
+ if ((x + w) > maxwidth) {
+ w = maxwidth - x;
+ if ((w / d) < VINO_MIN_WIDTH)
+ x = maxwidth - VINO_MIN_WIDTH * d;
+ }
+ if ((y + h) > maxheight) {
+ h = maxheight - y;
+ if ((h / d) < VINO_MIN_HEIGHT)
+ y = maxheight - VINO_MIN_HEIGHT * d;
+ }
+
+ vcs->clipping.left = x;
+ vcs->clipping.top = y;
+ vcs->clipping.right = x + w;
+ vcs->clipping.bottom = y + h;
+
+ vino_update_line_size(vcs);
+
+ dprintk("clipping %d, %d, %d, %d / %d - %d\n",
+ vcs->clipping.left, vcs->clipping.top, vcs->clipping.right,
+ vcs->clipping.bottom, vcs->decimation, vcs->line_size);
+}
+
+/* execute with input_lock locked */
+static inline void vino_set_default_clipping(struct vino_channel_settings *vcs)
+{
+ vino_set_clipping(vcs, 0, 0, vino_data_norms[vcs->data_norm].width,
+ vino_data_norms[vcs->data_norm].height);
+}
+
+/* execute with input_lock locked */
+static void vino_set_scaling(struct vino_channel_settings *vcs,
+ unsigned int w, unsigned int h)
+{
+ unsigned int x, y, curw, curh, d;
+
+ x = vcs->clipping.left;
+ y = vcs->clipping.top;
+ curw = vcs->clipping.right - vcs->clipping.left;
+ curh = vcs->clipping.bottom - vcs->clipping.top;
+
+ d = max(curw / w, curh / h);
+
+ dprintk("scaling w: %d, h: %d, curw: %d, curh: %d, d: %d\n",
+ w, h, curw, curh, d);
+
+ if (d < 1) {
+ d = 1;
+ } else if (d > 8) {
+ d = 8;
+ }
+
+ vcs->decimation = d;
+ vino_set_clipping(vcs, x, y, w * d, h * d);
+
+ dprintk("scaling %d, %d, %d, %d / %d - %d\n", vcs->clipping.left,
+ vcs->clipping.top, vcs->clipping.right, vcs->clipping.bottom,
+ vcs->decimation, vcs->line_size);
+}
+
+/* execute with input_lock locked */
+static inline void vino_set_default_scaling(struct vino_channel_settings *vcs)
+{
+ vino_set_scaling(vcs, vcs->clipping.right - vcs->clipping.left,
+ vcs->clipping.bottom - vcs->clipping.top);
+}
+
+/* execute with input_lock locked */
+static void vino_set_framerate(struct vino_channel_settings *vcs,
+ unsigned int fps)
+{
+ unsigned int mask;
+
+ switch (vcs->data_norm) {
+ case VINO_DATA_NORM_NTSC:
+ case VINO_DATA_NORM_D1:
+ fps = (unsigned int)(fps / 6) * 6; // FIXME: round!
+
+ if (fps < vino_data_norms[vcs->data_norm].fps_min)
+ fps = vino_data_norms[vcs->data_norm].fps_min;
+ if (fps > vino_data_norms[vcs->data_norm].fps_max)
+ fps = vino_data_norms[vcs->data_norm].fps_max;
+
+ switch (fps) {
+ case 6:
+ mask = 0x003;
+ break;
+ case 12:
+ mask = 0x0c3;
+ break;
+ case 18:
+ mask = 0x333;
+ break;
+ case 24:
+ mask = 0x3ff;
+ break;
+ case 30:
+ mask = 0xfff;
+ break;
+ default:
+ mask = VINO_FRAMERT_FULL;
+ }
+ vcs->framert_reg = VINO_FRAMERT_RT(mask);
+ break;
+ case VINO_DATA_NORM_PAL:
+ case VINO_DATA_NORM_SECAM:
+ fps = (unsigned int)(fps / 5) * 5; // FIXME: round!
+
+ if (fps < vino_data_norms[vcs->data_norm].fps_min)
+ fps = vino_data_norms[vcs->data_norm].fps_min;
+ if (fps > vino_data_norms[vcs->data_norm].fps_max)
+ fps = vino_data_norms[vcs->data_norm].fps_max;
+
+ switch (fps) {
+ case 5:
+ mask = 0x003;
+ break;
+ case 10:
+ mask = 0x0c3;
+ break;
+ case 15:
+ mask = 0x333;
+ break;
+ case 20:
+ mask = 0x0ff;
+ break;
+ case 25:
+ mask = 0x3ff;
+ break;
+ default:
+ mask = VINO_FRAMERT_FULL;
+ }
+ vcs->framert_reg = VINO_FRAMERT_RT(mask) | VINO_FRAMERT_PAL;
+ break;
+ }
+
+ vcs->fps = fps;
+}
+
+/* execute with input_lock locked */
+static inline void vino_set_default_framerate(struct
+ vino_channel_settings *vcs)
+{
+ vino_set_framerate(vcs, vino_data_norms[vcs->data_norm].fps_max);
+}
+
+/* VINO I2C bus functions */
+
+struct i2c_algo_sgi_data {
+ void *data; /* private data for lowlevel routines */
+ unsigned (*getctrl)(void *data);
+ void (*setctrl)(void *data, unsigned val);
+ unsigned (*rdata)(void *data);
+ void (*wdata)(void *data, unsigned val);
+
+ int xfer_timeout;
+ int ack_timeout;
+};
+
+static int wait_xfer_done(struct i2c_algo_sgi_data *adap)
+{
+ int i;
+
+ for (i = 0; i < adap->xfer_timeout; i++) {
+ if ((adap->getctrl(adap->data) & SGI_I2C_XFER_BUSY) == 0)
+ return 0;
+ udelay(1);
+ }
+
+ return -ETIMEDOUT;
+}
+
+static int wait_ack(struct i2c_algo_sgi_data *adap)
+{
+ int i;
+
+ if (wait_xfer_done(adap))
+ return -ETIMEDOUT;
+ for (i = 0; i < adap->ack_timeout; i++) {
+ if ((adap->getctrl(adap->data) & SGI_I2C_NACK) == 0)
+ return 0;
+ udelay(1);
+ }
+
+ return -ETIMEDOUT;
+}
+
+static int force_idle(struct i2c_algo_sgi_data *adap)
+{
+ int i;
+
+ adap->setctrl(adap->data, SGI_I2C_FORCE_IDLE);
+ for (i = 0; i < adap->xfer_timeout; i++) {
+ if ((adap->getctrl(adap->data) & SGI_I2C_NOT_IDLE) == 0)
+ goto out;
+ udelay(1);
+ }
+ return -ETIMEDOUT;
+out:
+ if (adap->getctrl(adap->data) & SGI_I2C_BUS_ERR)
+ return -EIO;
+ return 0;
+}
+
+static int do_address(struct i2c_algo_sgi_data *adap, unsigned int addr,
+ int rd)
+{
+ if (rd)
+ adap->setctrl(adap->data, SGI_I2C_NOT_IDLE);
+ /* Check if bus is idle, eventually force it to do so */
+ if (adap->getctrl(adap->data) & SGI_I2C_NOT_IDLE)
+ if (force_idle(adap))
+ return -EIO;
+ /* Write out the i2c chip address and specify operation */
+ adap->setctrl(adap->data,
+ SGI_I2C_HOLD_BUS | SGI_I2C_WRITE | SGI_I2C_NOT_IDLE);
+ if (rd)
+ addr |= 1;
+ adap->wdata(adap->data, addr);
+ if (wait_ack(adap))
+ return -EIO;
+ return 0;
+}
+
+static int i2c_read(struct i2c_algo_sgi_data *adap, unsigned char *buf,
+ unsigned int len)
+{
+ int i;
+
+ adap->setctrl(adap->data,
+ SGI_I2C_HOLD_BUS | SGI_I2C_READ | SGI_I2C_NOT_IDLE);
+ for (i = 0; i < len; i++) {
+ if (wait_xfer_done(adap))
+ return -EIO;
+ buf[i] = adap->rdata(adap->data);
+ }
+ adap->setctrl(adap->data, SGI_I2C_RELEASE_BUS | SGI_I2C_FORCE_IDLE);
+
+ return 0;
+
+}
+
+static int i2c_write(struct i2c_algo_sgi_data *adap, unsigned char *buf,
+ unsigned int len)
+{
+ int i;
+
+ /* We are already in write state */
+ for (i = 0; i < len; i++) {
+ adap->wdata(adap->data, buf[i]);
+ if (wait_ack(adap))
+ return -EIO;
+ }
+ return 0;
+}
+
+static int sgi_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs,
+ int num)
+{
+ struct i2c_algo_sgi_data *adap = i2c_adap->algo_data;
+ struct i2c_msg *p;
+ int i, err = 0;
+
+ for (i = 0; !err && i < num; i++) {
+ p = &msgs[i];
+ err = do_address(adap, p->addr, p->flags & I2C_M_RD);
+ if (err || !p->len)
+ continue;
+ if (p->flags & I2C_M_RD)
+ err = i2c_read(adap, p->buf, p->len);
+ else
+ err = i2c_write(adap, p->buf, p->len);
+ }
+
+ return (err < 0) ? err : i;
+}
+
+static u32 sgi_func(struct i2c_adapter *adap)
+{
+ return I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm sgi_algo = {
+ .master_xfer = sgi_xfer,
+ .functionality = sgi_func,
+};
+
+static unsigned i2c_vino_getctrl(void *data)
+{
+ return vino->i2c_control;
+}
+
+static void i2c_vino_setctrl(void *data, unsigned val)
+{
+ vino->i2c_control = val;
+}
+
+static unsigned i2c_vino_rdata(void *data)
+{
+ return vino->i2c_data;
+}
+
+static void i2c_vino_wdata(void *data, unsigned val)
+{
+ vino->i2c_data = val;
+}
+
+static struct i2c_algo_sgi_data i2c_sgi_vino_data = {
+ .getctrl = &i2c_vino_getctrl,
+ .setctrl = &i2c_vino_setctrl,
+ .rdata = &i2c_vino_rdata,
+ .wdata = &i2c_vino_wdata,
+ .xfer_timeout = 200,
+ .ack_timeout = 1000,
+};
+
+static struct i2c_adapter vino_i2c_adapter = {
+ .name = "VINO I2C bus",
+ .algo = &sgi_algo,
+ .algo_data = &i2c_sgi_vino_data,
+ .owner = THIS_MODULE,
+};
+
+/*
+ * Prepare VINO for DMA transfer...
+ * (execute only with vino_lock and input_lock locked)
+ */
+static int vino_dma_setup(struct vino_channel_settings *vcs,
+ struct vino_framebuffer *fb)
+{
+ u32 ctrl, intr;
+ struct sgi_vino_channel *ch;
+ const struct vino_data_norm *norm;
+
+ dprintk("vino_dma_setup():\n");
+
+ vcs->field = 0;
+ fb->frame_counter = 0;
+
+ ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b;
+ norm = &vino_data_norms[vcs->data_norm];
+
+ ch->page_index = 0;
+ ch->line_count = 0;
+
+ /* VINO line size register is set 8 bytes less than actual */
+ ch->line_size = vcs->line_size - 8;
+
+ /* let VINO know where to transfer data */
+ ch->start_desc_tbl = fb->desc_table.dma;
+ ch->next_4_desc = fb->desc_table.dma;
+
+ /* give vino time to fetch the first four descriptors, 5 usec
+ * should be more than enough time */
+ udelay(VINO_DESC_FETCH_DELAY);
+
+ dprintk("vino_dma_setup(): start desc = %08x, next 4 desc = %08x\n",
+ ch->start_desc_tbl, ch->next_4_desc);
+
+ /* set the alpha register */
+ ch->alpha = vcs->alpha;
+
+ /* set clipping registers */
+ ch->clip_start = VINO_CLIP_ODD(norm->odd.top + vcs->clipping.top / 2) |
+ VINO_CLIP_EVEN(norm->even.top +
+ vcs->clipping.top / 2) |
+ VINO_CLIP_X(vcs->clipping.left);
+ ch->clip_end = VINO_CLIP_ODD(norm->odd.top +
+ vcs->clipping.bottom / 2 - 1) |
+ VINO_CLIP_EVEN(norm->even.top +
+ vcs->clipping.bottom / 2 - 1) |
+ VINO_CLIP_X(vcs->clipping.right);
+
+ /* set the size of actual content in the buffer (DECIMATION !) */
+ fb->data_size = ((vcs->clipping.right - vcs->clipping.left) /
+ vcs->decimation) *
+ ((vcs->clipping.bottom - vcs->clipping.top) /
+ vcs->decimation) *
+ vino_data_formats[vcs->data_format].bpp;
+
+ ch->frame_rate = vcs->framert_reg;
+
+ ctrl = vino->control;
+ intr = vino->intr_status;
+
+ if (vcs->channel == VINO_CHANNEL_A) {
+ /* All interrupt conditions for this channel was cleared
+ * so clear the interrupt status register and enable
+ * interrupts */
+ intr &= ~VINO_INTSTAT_A;
+ ctrl |= VINO_CTRL_A_INT;
+
+ /* enable synchronization */
+ ctrl |= VINO_CTRL_A_SYNC_ENBL;
+
+ /* enable frame assembly */
+ ctrl |= VINO_CTRL_A_INTERLEAVE_ENBL;
+
+ /* set decimation used */
+ if (vcs->decimation < 2)
+ ctrl &= ~VINO_CTRL_A_DEC_ENBL;
+ else {
+ ctrl |= VINO_CTRL_A_DEC_ENBL;
+ ctrl &= ~VINO_CTRL_A_DEC_SCALE_MASK;
+ ctrl |= (vcs->decimation - 1) <<
+ VINO_CTRL_A_DEC_SCALE_SHIFT;
+ }
+
+ /* select input interface */
+ if (vcs->input == VINO_INPUT_D1)
+ ctrl |= VINO_CTRL_A_SELECT;
+ else
+ ctrl &= ~VINO_CTRL_A_SELECT;
+
+ /* palette */
+ ctrl &= ~(VINO_CTRL_A_LUMA_ONLY | VINO_CTRL_A_RGB |
+ VINO_CTRL_A_DITHER);
+ } else {
+ intr &= ~VINO_INTSTAT_B;
+ ctrl |= VINO_CTRL_B_INT;
+
+ ctrl |= VINO_CTRL_B_SYNC_ENBL;
+ ctrl |= VINO_CTRL_B_INTERLEAVE_ENBL;
+
+ if (vcs->decimation < 2)
+ ctrl &= ~VINO_CTRL_B_DEC_ENBL;
+ else {
+ ctrl |= VINO_CTRL_B_DEC_ENBL;
+ ctrl &= ~VINO_CTRL_B_DEC_SCALE_MASK;
+ ctrl |= (vcs->decimation - 1) <<
+ VINO_CTRL_B_DEC_SCALE_SHIFT;
+
+ }
+ if (vcs->input == VINO_INPUT_D1)
+ ctrl |= VINO_CTRL_B_SELECT;
+ else
+ ctrl &= ~VINO_CTRL_B_SELECT;
+
+ ctrl &= ~(VINO_CTRL_B_LUMA_ONLY | VINO_CTRL_B_RGB |
+ VINO_CTRL_B_DITHER);
+ }
+
+ /* set palette */
+ fb->data_format = vcs->data_format;
+
+ switch (vcs->data_format) {
+ case VINO_DATA_FMT_GREY:
+ ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
+ VINO_CTRL_A_LUMA_ONLY : VINO_CTRL_B_LUMA_ONLY;
+ break;
+ case VINO_DATA_FMT_RGB32:
+ ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
+ VINO_CTRL_A_RGB : VINO_CTRL_B_RGB;
+ break;
+ case VINO_DATA_FMT_YUV:
+ /* nothing needs to be done */
+ break;
+ case VINO_DATA_FMT_RGB332:
+ ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
+ VINO_CTRL_A_RGB | VINO_CTRL_A_DITHER :
+ VINO_CTRL_B_RGB | VINO_CTRL_B_DITHER;
+ break;
+ }
+
+ vino->intr_status = intr;
+ vino->control = ctrl;
+
+ return 0;
+}
+
+/* (execute only with vino_lock locked) */
+static inline void vino_dma_start(struct vino_channel_settings *vcs)
+{
+ u32 ctrl = vino->control;
+
+ dprintk("vino_dma_start():\n");
+ ctrl |= (vcs->channel == VINO_CHANNEL_A) ?
+ VINO_CTRL_A_DMA_ENBL : VINO_CTRL_B_DMA_ENBL;
+ vino->control = ctrl;
+}
+
+/* (execute only with vino_lock locked) */
+static inline void vino_dma_stop(struct vino_channel_settings *vcs)
+{
+ u32 ctrl = vino->control;
+
+ ctrl &= (vcs->channel == VINO_CHANNEL_A) ?
+ ~VINO_CTRL_A_DMA_ENBL : ~VINO_CTRL_B_DMA_ENBL;
+ ctrl &= (vcs->channel == VINO_CHANNEL_A) ?
+ ~VINO_CTRL_A_INT : ~VINO_CTRL_B_INT;
+ vino->control = ctrl;
+ dprintk("vino_dma_stop():\n");
+}
+
+/*
+ * Load dummy page to descriptor registers. This prevents generating of
+ * spurious interrupts. (execute only with vino_lock locked)
+ */
+static void vino_clear_interrupt(struct vino_channel_settings *vcs)
+{
+ struct sgi_vino_channel *ch;
+
+ ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b;
+
+ ch->page_index = 0;
+ ch->line_count = 0;
+
+ ch->start_desc_tbl = vino_drvdata->dummy_desc_table.dma;
+ ch->next_4_desc = vino_drvdata->dummy_desc_table.dma;
+
+ udelay(VINO_DESC_FETCH_DELAY);
+ dprintk("channel %c clear interrupt condition\n",
+ (vcs->channel == VINO_CHANNEL_A) ? 'A':'B');
+}
+
+static int vino_capture(struct vino_channel_settings *vcs,
+ struct vino_framebuffer *fb)
+{
+ int err = 0;
+ unsigned long flags, flags2;
+
+ spin_lock_irqsave(&fb->state_lock, flags);
+
+ if (fb->state == VINO_FRAMEBUFFER_IN_USE)
+ err = -EBUSY;
+ fb->state = VINO_FRAMEBUFFER_IN_USE;
+
+ spin_unlock_irqrestore(&fb->state_lock, flags);
+
+ if (err)
+ return err;
+
+ spin_lock_irqsave(&vino_drvdata->vino_lock, flags);
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags2);
+
+ vino_dma_setup(vcs, fb);
+ vino_dma_start(vcs);
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags2);
+ spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags);
+
+ return err;
+}
+
+static
+struct vino_framebuffer *vino_capture_enqueue(struct
+ vino_channel_settings *vcs,
+ unsigned int index)
+{
+ struct vino_framebuffer *fb;
+ unsigned long flags;
+
+ dprintk("vino_capture_enqueue():\n");
+
+ spin_lock_irqsave(&vcs->capture_lock, flags);
+
+ fb = vino_queue_add(&vcs->fb_queue, index);
+ if (fb == NULL) {
+ dprintk("vino_capture_enqueue(): vino_queue_add() failed, "
+ "queue full?\n");
+ goto out;
+ }
+out:
+ spin_unlock_irqrestore(&vcs->capture_lock, flags);
+
+ return fb;
+}
+
+static int vino_capture_next(struct vino_channel_settings *vcs, int start)
+{
+ struct vino_framebuffer *fb;
+ unsigned int incoming, id;
+ int err = 0;
+ unsigned long flags;
+
+ dprintk("vino_capture_next():\n");
+
+ spin_lock_irqsave(&vcs->capture_lock, flags);
+
+ if (start) {
+ /* start capture only if capture isn't in progress already */
+ if (vcs->capturing) {
+ spin_unlock_irqrestore(&vcs->capture_lock, flags);
+ return 0;
+ }
+
+ } else {
+ /* capture next frame:
+ * stop capture if capturing is not set */
+ if (!vcs->capturing) {
+ spin_unlock_irqrestore(&vcs->capture_lock, flags);
+ return 0;
+ }
+ }
+
+ err = vino_queue_get_incoming(&vcs->fb_queue, &incoming);
+ if (err) {
+ dprintk("vino_capture_next(): vino_queue_get_incoming() "
+ "failed\n");
+ err = -EINVAL;
+ goto out;
+ }
+ if (incoming == 0) {
+ dprintk("vino_capture_next(): no buffers available\n");
+ goto out;
+ }
+
+ fb = vino_queue_peek(&vcs->fb_queue, &id);
+ if (fb == NULL) {
+ dprintk("vino_capture_next(): vino_queue_peek() failed\n");
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (start) {
+ vcs->capturing = 1;
+ }
+
+ spin_unlock_irqrestore(&vcs->capture_lock, flags);
+
+ err = vino_capture(vcs, fb);
+
+ return err;
+
+out:
+ vcs->capturing = 0;
+ spin_unlock_irqrestore(&vcs->capture_lock, flags);
+
+ return err;
+}
+
+static inline int vino_is_capturing(struct vino_channel_settings *vcs)
+{
+ int ret;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vcs->capture_lock, flags);
+
+ ret = vcs->capturing;
+
+ spin_unlock_irqrestore(&vcs->capture_lock, flags);
+
+ return ret;
+}
+
+/* waits until a frame is captured */
+static int vino_wait_for_frame(struct vino_channel_settings *vcs)
+{
+ wait_queue_t wait;
+ int err = 0;
+
+ dprintk("vino_wait_for_frame():\n");
+
+ init_waitqueue_entry(&wait, current);
+ /* add ourselves into wait queue */
+ add_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait);
+
+ /* to ensure that schedule_timeout will return immediately
+ * if VINO interrupt was triggered meanwhile */
+ schedule_timeout_interruptible(msecs_to_jiffies(100));
+
+ if (signal_pending(current))
+ err = -EINTR;
+
+ remove_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait);
+
+ dprintk("vino_wait_for_frame(): waiting for frame %s\n",
+ err ? "failed" : "ok");
+
+ return err;
+}
+
+/* the function assumes that PAGE_SIZE % 4 == 0 */
+static void vino_convert_to_rgba(struct vino_framebuffer *fb) {
+ unsigned char *pageptr;
+ unsigned int page, i;
+ unsigned char a;
+
+ for (page = 0; page < fb->desc_table.page_count; page++) {
+ pageptr = (unsigned char *)fb->desc_table.virtual[page];
+
+ for (i = 0; i < PAGE_SIZE; i += 4) {
+ a = pageptr[0];
+ pageptr[0] = pageptr[3];
+ pageptr[1] = pageptr[2];
+ pageptr[2] = pageptr[1];
+ pageptr[3] = a;
+ pageptr += 4;
+ }
+ }
+}
+
+/* checks if the buffer is in correct state and syncs data */
+static int vino_check_buffer(struct vino_channel_settings *vcs,
+ struct vino_framebuffer *fb)
+{
+ int err = 0;
+ unsigned long flags;
+
+ dprintk("vino_check_buffer():\n");
+
+ spin_lock_irqsave(&fb->state_lock, flags);
+ switch (fb->state) {
+ case VINO_FRAMEBUFFER_IN_USE:
+ err = -EIO;
+ break;
+ case VINO_FRAMEBUFFER_READY:
+ vino_sync_buffer(fb);
+ fb->state = VINO_FRAMEBUFFER_UNUSED;
+ break;
+ default:
+ err = -EINVAL;
+ }
+ spin_unlock_irqrestore(&fb->state_lock, flags);
+
+ if (!err) {
+ if (vino_pixel_conversion
+ && (fb->data_format == VINO_DATA_FMT_RGB32)) {
+ vino_convert_to_rgba(fb);
+ }
+ } else if (err && (err != -EINVAL)) {
+ dprintk("vino_check_buffer(): buffer not ready\n");
+
+ spin_lock_irqsave(&vino_drvdata->vino_lock, flags);
+ vino_dma_stop(vcs);
+ vino_clear_interrupt(vcs);
+ spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags);
+ }
+
+ return err;
+}
+
+/* forcefully terminates capture */
+static void vino_capture_stop(struct vino_channel_settings *vcs)
+{
+ unsigned int incoming = 0, outgoing = 0, id;
+ unsigned long flags, flags2;
+
+ dprintk("vino_capture_stop():\n");
+
+ spin_lock_irqsave(&vcs->capture_lock, flags);
+
+ /* unset capturing to stop queue processing */
+ vcs->capturing = 0;
+
+ spin_lock_irqsave(&vino_drvdata->vino_lock, flags2);
+
+ vino_dma_stop(vcs);
+ vino_clear_interrupt(vcs);
+
+ spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags2);
+
+ /* remove all items from the queue */
+ if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) {
+ dprintk("vino_capture_stop(): "
+ "vino_queue_get_incoming() failed\n");
+ goto out;
+ }
+ while (incoming > 0) {
+ vino_queue_transfer(&vcs->fb_queue);
+
+ if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) {
+ dprintk("vino_capture_stop(): "
+ "vino_queue_get_incoming() failed\n");
+ goto out;
+ }
+ }
+
+ if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
+ dprintk("vino_capture_stop(): "
+ "vino_queue_get_outgoing() failed\n");
+ goto out;
+ }
+ while (outgoing > 0) {
+ vino_queue_remove(&vcs->fb_queue, &id);
+
+ if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
+ dprintk("vino_capture_stop(): "
+ "vino_queue_get_outgoing() failed\n");
+ goto out;
+ }
+ }
+
+out:
+ spin_unlock_irqrestore(&vcs->capture_lock, flags);
+}
+
+#if 0
+static int vino_capture_failed(struct vino_channel_settings *vcs)
+{
+ struct vino_framebuffer *fb;
+ unsigned long flags;
+ unsigned int i;
+ int ret;
+
+ dprintk("vino_capture_failed():\n");
+
+ spin_lock_irqsave(&vino_drvdata->vino_lock, flags);
+
+ vino_dma_stop(vcs);
+ vino_clear_interrupt(vcs);
+
+ spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags);
+
+ ret = vino_queue_get_incoming(&vcs->fb_queue, &i);
+ if (ret == VINO_QUEUE_ERROR) {
+ dprintk("vino_queue_get_incoming() failed\n");
+ return -EINVAL;
+ }
+ if (i == 0) {
+ /* no buffers to process */
+ return 0;
+ }
+
+ fb = vino_queue_peek(&vcs->fb_queue, &i);
+ if (fb == NULL) {
+ dprintk("vino_queue_peek() failed\n");
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&fb->state_lock, flags);
+ if (fb->state == VINO_FRAMEBUFFER_IN_USE) {
+ fb->state = VINO_FRAMEBUFFER_UNUSED;
+ vino_queue_transfer(&vcs->fb_queue);
+ vino_queue_remove(&vcs->fb_queue, &i);
+ /* we should actually discard the newest frame,
+ * but who cares ... */
+ }
+ spin_unlock_irqrestore(&fb->state_lock, flags);
+
+ return 0;
+}
+#endif
+
+static void vino_skip_frame(struct vino_channel_settings *vcs)
+{
+ struct vino_framebuffer *fb;
+ unsigned long flags;
+ unsigned int id;
+
+ spin_lock_irqsave(&vcs->capture_lock, flags);
+ fb = vino_queue_peek(&vcs->fb_queue, &id);
+ if (!fb) {
+ spin_unlock_irqrestore(&vcs->capture_lock, flags);
+ dprintk("vino_skip_frame(): vino_queue_peek() failed!\n");
+ return;
+ }
+ spin_unlock_irqrestore(&vcs->capture_lock, flags);
+
+ spin_lock_irqsave(&fb->state_lock, flags);
+ fb->state = VINO_FRAMEBUFFER_UNUSED;
+ spin_unlock_irqrestore(&fb->state_lock, flags);
+
+ vino_capture_next(vcs, 0);
+}
+
+static void vino_frame_done(struct vino_channel_settings *vcs)
+{
+ struct vino_framebuffer *fb;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vcs->capture_lock, flags);
+ fb = vino_queue_transfer(&vcs->fb_queue);
+ if (!fb) {
+ spin_unlock_irqrestore(&vcs->capture_lock, flags);
+ dprintk("vino_frame_done(): vino_queue_transfer() failed!\n");
+ return;
+ }
+ spin_unlock_irqrestore(&vcs->capture_lock, flags);
+
+ fb->frame_counter = vcs->int_data.frame_counter;
+ memcpy(&fb->timestamp, &vcs->int_data.timestamp,
+ sizeof(struct timeval));
+
+ spin_lock_irqsave(&fb->state_lock, flags);
+ if (fb->state == VINO_FRAMEBUFFER_IN_USE)
+ fb->state = VINO_FRAMEBUFFER_READY;
+ spin_unlock_irqrestore(&fb->state_lock, flags);
+
+ wake_up(&vcs->fb_queue.frame_wait_queue);
+
+ vino_capture_next(vcs, 0);
+}
+
+static void vino_capture_tasklet(unsigned long channel) {
+ struct vino_channel_settings *vcs;
+
+ vcs = (channel == VINO_CHANNEL_A)
+ ? &vino_drvdata->a : &vino_drvdata->b;
+
+ if (vcs->int_data.skip)
+ vcs->int_data.skip_count++;
+
+ if (vcs->int_data.skip && (vcs->int_data.skip_count
+ <= VINO_MAX_FRAME_SKIP_COUNT)) {
+ vino_skip_frame(vcs);
+ } else {
+ vcs->int_data.skip_count = 0;
+ vino_frame_done(vcs);
+ }
+}
+
+static irqreturn_t vino_interrupt(int irq, void *dev_id)
+{
+ u32 ctrl, intr;
+ unsigned int fc_a, fc_b;
+ int handled_a = 0, skip_a = 0, done_a = 0;
+ int handled_b = 0, skip_b = 0, done_b = 0;
+
+#ifdef VINO_DEBUG_INT
+ int loop = 0;
+ unsigned int line_count = vino->a.line_count,
+ page_index = vino->a.page_index,
+ field_counter = vino->a.field_counter,
+ start_desc_tbl = vino->a.start_desc_tbl,
+ next_4_desc = vino->a.next_4_desc;
+ unsigned int line_count_2,
+ page_index_2,
+ field_counter_2,
+ start_desc_tbl_2,
+ next_4_desc_2;
+#endif
+
+ spin_lock(&vino_drvdata->vino_lock);
+
+ while ((intr = vino->intr_status)) {
+ fc_a = vino->a.field_counter >> 1;
+ fc_b = vino->b.field_counter >> 1;
+
+ /* handle error-interrupts in some special way ?
+ * --> skips frames */
+ if (intr & VINO_INTSTAT_A) {
+ if (intr & VINO_INTSTAT_A_EOF) {
+ vino_drvdata->a.field++;
+ if (vino_drvdata->a.field > 1) {
+ vino_dma_stop(&vino_drvdata->a);
+ vino_clear_interrupt(&vino_drvdata->a);
+ vino_drvdata->a.field = 0;
+ done_a = 1;
+ } else {
+ if (vino->a.page_index
+ != vino_drvdata->a.line_size) {
+ vino->a.line_count = 0;
+ vino->a.page_index =
+ vino_drvdata->
+ a.line_size;
+ vino->a.next_4_desc =
+ vino->a.start_desc_tbl;
+ }
+ }
+ dprintk("channel A end-of-field "
+ "interrupt: %04x\n", intr);
+ } else {
+ vino_dma_stop(&vino_drvdata->a);
+ vino_clear_interrupt(&vino_drvdata->a);
+ vino_drvdata->a.field = 0;
+ skip_a = 1;
+ dprintk("channel A error interrupt: %04x\n",
+ intr);
+ }
+
+#ifdef VINO_DEBUG_INT
+ line_count_2 = vino->a.line_count;
+ page_index_2 = vino->a.page_index;
+ field_counter_2 = vino->a.field_counter;
+ start_desc_tbl_2 = vino->a.start_desc_tbl;
+ next_4_desc_2 = vino->a.next_4_desc;
+
+ printk("intr = %04x, loop = %d, field = %d\n",
+ intr, loop, vino_drvdata->a.field);
+ printk("1- line count = %04d, page index = %04d, "
+ "start = %08x, next = %08x\n"
+ " fieldc = %d, framec = %d\n",
+ line_count, page_index, start_desc_tbl,
+ next_4_desc, field_counter, fc_a);
+ printk("12-line count = %04d, page index = %04d, "
+ " start = %08x, next = %08x\n",
+ line_count_2, page_index_2, start_desc_tbl_2,
+ next_4_desc_2);
+
+ if (done_a)
+ printk("\n");
+#endif
+ }
+
+ if (intr & VINO_INTSTAT_B) {
+ if (intr & VINO_INTSTAT_B_EOF) {
+ vino_drvdata->b.field++;
+ if (vino_drvdata->b.field > 1) {
+ vino_dma_stop(&vino_drvdata->b);
+ vino_clear_interrupt(&vino_drvdata->b);
+ vino_drvdata->b.field = 0;
+ done_b = 1;
+ }
+ dprintk("channel B end-of-field "
+ "interrupt: %04x\n", intr);
+ } else {
+ vino_dma_stop(&vino_drvdata->b);
+ vino_clear_interrupt(&vino_drvdata->b);
+ vino_drvdata->b.field = 0;
+ skip_b = 1;
+ dprintk("channel B error interrupt: %04x\n",
+ intr);
+ }
+ }
+
+ /* Always remember to clear interrupt status.
+ * Disable VINO interrupts while we do this. */
+ ctrl = vino->control;
+ vino->control = ctrl & ~(VINO_CTRL_A_INT | VINO_CTRL_B_INT);
+ vino->intr_status = ~intr;
+ vino->control = ctrl;
+
+ spin_unlock(&vino_drvdata->vino_lock);
+
+ if ((!handled_a) && (done_a || skip_a)) {
+ if (!skip_a) {
+ v4l2_get_timestamp(
+ &vino_drvdata->a.int_data.timestamp);
+ vino_drvdata->a.int_data.frame_counter = fc_a;
+ }
+ vino_drvdata->a.int_data.skip = skip_a;
+
+ dprintk("channel A %s, interrupt: %d\n",
+ skip_a ? "skipping frame" : "frame done",
+ intr);
+ tasklet_hi_schedule(&vino_tasklet_a);
+ handled_a = 1;
+ }
+
+ if ((!handled_b) && (done_b || skip_b)) {
+ if (!skip_b) {
+ v4l2_get_timestamp(
+ &vino_drvdata->b.int_data.timestamp);
+ vino_drvdata->b.int_data.frame_counter = fc_b;
+ }
+ vino_drvdata->b.int_data.skip = skip_b;
+
+ dprintk("channel B %s, interrupt: %d\n",
+ skip_b ? "skipping frame" : "frame done",
+ intr);
+ tasklet_hi_schedule(&vino_tasklet_b);
+ handled_b = 1;
+ }
+
+#ifdef VINO_DEBUG_INT
+ loop++;
+#endif
+ spin_lock(&vino_drvdata->vino_lock);
+ }
+
+ spin_unlock(&vino_drvdata->vino_lock);
+
+ return IRQ_HANDLED;
+}
+
+/* VINO video input management */
+
+static int vino_get_saa7191_input(int input)
+{
+ switch (input) {
+ case VINO_INPUT_COMPOSITE:
+ return SAA7191_INPUT_COMPOSITE;
+ case VINO_INPUT_SVIDEO:
+ return SAA7191_INPUT_SVIDEO;
+ default:
+ printk(KERN_ERR "VINO: vino_get_saa7191_input(): "
+ "invalid input!\n");
+ return -1;
+ }
+}
+
+/* execute with input_lock locked */
+static int vino_is_input_owner(struct vino_channel_settings *vcs)
+{
+ switch(vcs->input) {
+ case VINO_INPUT_COMPOSITE:
+ case VINO_INPUT_SVIDEO:
+ return vino_drvdata->decoder_owner == vcs->channel;
+ case VINO_INPUT_D1:
+ return vino_drvdata->camera_owner == vcs->channel;
+ default:
+ return 0;
+ }
+}
+
+static int vino_acquire_input(struct vino_channel_settings *vcs)
+{
+ unsigned long flags;
+ int ret = 0;
+
+ dprintk("vino_acquire_input():\n");
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ /* First try D1 and then SAA7191 */
+ if (vino_drvdata->camera
+ && (vino_drvdata->camera_owner == VINO_NO_CHANNEL)) {
+ vino_drvdata->camera_owner = vcs->channel;
+ vcs->input = VINO_INPUT_D1;
+ vcs->data_norm = VINO_DATA_NORM_D1;
+ } else if (vino_drvdata->decoder
+ && (vino_drvdata->decoder_owner == VINO_NO_CHANNEL)) {
+ int input;
+ int data_norm = 0;
+ v4l2_std_id norm;
+
+ input = VINO_INPUT_COMPOSITE;
+
+ ret = decoder_call(video, s_routing,
+ vino_get_saa7191_input(input), 0, 0);
+ if (ret) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ /* Don't hold spinlocks while auto-detecting norm
+ * as it may take a while... */
+
+ ret = decoder_call(video, querystd, &norm);
+ if (!ret) {
+ for (data_norm = 0; data_norm < 3; data_norm++) {
+ if (vino_data_norms[data_norm].std & norm)
+ break;
+ }
+ if (data_norm == 3)
+ data_norm = VINO_DATA_NORM_PAL;
+ ret = decoder_call(video, s_std, norm);
+ }
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ if (ret) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ vino_drvdata->decoder_owner = vcs->channel;
+
+ vcs->input = input;
+ vcs->data_norm = data_norm;
+ } else {
+ vcs->input = (vcs->channel == VINO_CHANNEL_A) ?
+ vino_drvdata->b.input : vino_drvdata->a.input;
+ vcs->data_norm = (vcs->channel == VINO_CHANNEL_A) ?
+ vino_drvdata->b.data_norm : vino_drvdata->a.data_norm;
+ }
+
+ if (vcs->input == VINO_INPUT_NONE) {
+ ret = -ENODEV;
+ goto out;
+ }
+
+ vino_set_default_clipping(vcs);
+ vino_set_default_scaling(vcs);
+ vino_set_default_framerate(vcs);
+
+ dprintk("vino_acquire_input(): %s\n", vino_inputs[vcs->input].name);
+
+out:
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ return ret;
+}
+
+static int vino_set_input(struct vino_channel_settings *vcs, int input)
+{
+ struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ?
+ &vino_drvdata->b : &vino_drvdata->a;
+ unsigned long flags;
+ int ret = 0;
+
+ dprintk("vino_set_input():\n");
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ if (vcs->input == input)
+ goto out;
+
+ switch (input) {
+ case VINO_INPUT_COMPOSITE:
+ case VINO_INPUT_SVIDEO:
+ if (!vino_drvdata->decoder) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (vino_drvdata->decoder_owner == VINO_NO_CHANNEL) {
+ vino_drvdata->decoder_owner = vcs->channel;
+ }
+
+ if (vino_drvdata->decoder_owner == vcs->channel) {
+ int data_norm = 0;
+ v4l2_std_id norm;
+
+ ret = decoder_call(video, s_routing,
+ vino_get_saa7191_input(input), 0, 0);
+ if (ret) {
+ vino_drvdata->decoder_owner = VINO_NO_CHANNEL;
+ ret = -EINVAL;
+ goto out;
+ }
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ /* Don't hold spinlocks while auto-detecting norm
+ * as it may take a while... */
+
+ ret = decoder_call(video, querystd, &norm);
+ if (!ret) {
+ for (data_norm = 0; data_norm < 3; data_norm++) {
+ if (vino_data_norms[data_norm].std & norm)
+ break;
+ }
+ if (data_norm == 3)
+ data_norm = VINO_DATA_NORM_PAL;
+ ret = decoder_call(video, s_std, norm);
+ }
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ if (ret) {
+ vino_drvdata->decoder_owner = VINO_NO_CHANNEL;
+ ret = -EINVAL;
+ goto out;
+ }
+
+ vcs->input = input;
+ vcs->data_norm = data_norm;
+ } else {
+ if (input != vcs2->input) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ vcs->input = input;
+ vcs->data_norm = vcs2->data_norm;
+ }
+
+ if (vino_drvdata->camera_owner == vcs->channel) {
+ /* Transfer the ownership or release the input */
+ if (vcs2->input == VINO_INPUT_D1) {
+ vino_drvdata->camera_owner = vcs2->channel;
+ } else {
+ vino_drvdata->camera_owner = VINO_NO_CHANNEL;
+ }
+ }
+ break;
+ case VINO_INPUT_D1:
+ if (!vino_drvdata->camera) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (vino_drvdata->camera_owner == VINO_NO_CHANNEL)
+ vino_drvdata->camera_owner = vcs->channel;
+
+ if (vino_drvdata->decoder_owner == vcs->channel) {
+ /* Transfer the ownership or release the input */
+ if ((vcs2->input == VINO_INPUT_COMPOSITE) ||
+ (vcs2->input == VINO_INPUT_SVIDEO)) {
+ vino_drvdata->decoder_owner = vcs2->channel;
+ } else {
+ vino_drvdata->decoder_owner = VINO_NO_CHANNEL;
+ }
+ }
+
+ vcs->input = input;
+ vcs->data_norm = VINO_DATA_NORM_D1;
+ break;
+ default:
+ ret = -EINVAL;
+ goto out;
+ }
+
+ vino_set_default_clipping(vcs);
+ vino_set_default_scaling(vcs);
+ vino_set_default_framerate(vcs);
+
+ dprintk("vino_set_input(): %s\n", vino_inputs[vcs->input].name);
+
+out:
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ return ret;
+}
+
+static void vino_release_input(struct vino_channel_settings *vcs)
+{
+ struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ?
+ &vino_drvdata->b : &vino_drvdata->a;
+ unsigned long flags;
+
+ dprintk("vino_release_input():\n");
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ /* Release ownership of the channel
+ * and if the other channel takes input from
+ * the same source, transfer the ownership */
+ if (vino_drvdata->camera_owner == vcs->channel) {
+ if (vcs2->input == VINO_INPUT_D1) {
+ vino_drvdata->camera_owner = vcs2->channel;
+ } else {
+ vino_drvdata->camera_owner = VINO_NO_CHANNEL;
+ }
+ } else if (vino_drvdata->decoder_owner == vcs->channel) {
+ if ((vcs2->input == VINO_INPUT_COMPOSITE) ||
+ (vcs2->input == VINO_INPUT_SVIDEO)) {
+ vino_drvdata->decoder_owner = vcs2->channel;
+ } else {
+ vino_drvdata->decoder_owner = VINO_NO_CHANNEL;
+ }
+ }
+ vcs->input = VINO_INPUT_NONE;
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+}
+
+/* execute with input_lock locked */
+static int vino_set_data_norm(struct vino_channel_settings *vcs,
+ unsigned int data_norm,
+ unsigned long *flags)
+{
+ int err = 0;
+
+ if (data_norm == vcs->data_norm)
+ return 0;
+
+ switch (vcs->input) {
+ case VINO_INPUT_D1:
+ /* only one "norm" supported */
+ if (data_norm != VINO_DATA_NORM_D1)
+ return -EINVAL;
+ break;
+ case VINO_INPUT_COMPOSITE:
+ case VINO_INPUT_SVIDEO: {
+ v4l2_std_id norm;
+
+ if ((data_norm != VINO_DATA_NORM_PAL)
+ && (data_norm != VINO_DATA_NORM_NTSC)
+ && (data_norm != VINO_DATA_NORM_SECAM))
+ return -EINVAL;
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, *flags);
+
+ /* Don't hold spinlocks while setting norm
+ * as it may take a while... */
+
+ norm = vino_data_norms[data_norm].std;
+ err = decoder_call(video, s_std, norm);
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, *flags);
+
+ if (err)
+ goto out;
+
+ vcs->data_norm = data_norm;
+
+ vino_set_default_clipping(vcs);
+ vino_set_default_scaling(vcs);
+ vino_set_default_framerate(vcs);
+ break;
+ }
+ default:
+ return -EINVAL;
+ }
+
+out:
+ return err;
+}
+
+/* V4L2 helper functions */
+
+static int vino_find_data_format(__u32 pixelformat)
+{
+ int i;
+
+ for (i = 0; i < VINO_DATA_FMT_COUNT; i++) {
+ if (vino_data_formats[i].pixelformat == pixelformat)
+ return i;
+ }
+
+ return VINO_DATA_FMT_NONE;
+}
+
+static int vino_int_enum_input(struct vino_channel_settings *vcs, __u32 index)
+{
+ int input = VINO_INPUT_NONE;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+ if (vino_drvdata->decoder && vino_drvdata->camera) {
+ switch (index) {
+ case 0:
+ input = VINO_INPUT_COMPOSITE;
+ break;
+ case 1:
+ input = VINO_INPUT_SVIDEO;
+ break;
+ case 2:
+ input = VINO_INPUT_D1;
+ break;
+ }
+ } else if (vino_drvdata->decoder) {
+ switch (index) {
+ case 0:
+ input = VINO_INPUT_COMPOSITE;
+ break;
+ case 1:
+ input = VINO_INPUT_SVIDEO;
+ break;
+ }
+ } else if (vino_drvdata->camera) {
+ switch (index) {
+ case 0:
+ input = VINO_INPUT_D1;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ return input;
+}
+
+/* execute with input_lock locked */
+static __u32 vino_find_input_index(struct vino_channel_settings *vcs)
+{
+ __u32 index = 0;
+ // FIXME: detect when no inputs available
+
+ if (vino_drvdata->decoder && vino_drvdata->camera) {
+ switch (vcs->input) {
+ case VINO_INPUT_COMPOSITE:
+ index = 0;
+ break;
+ case VINO_INPUT_SVIDEO:
+ index = 1;
+ break;
+ case VINO_INPUT_D1:
+ index = 2;
+ break;
+ }
+ } else if (vino_drvdata->decoder) {
+ switch (vcs->input) {
+ case VINO_INPUT_COMPOSITE:
+ index = 0;
+ break;
+ case VINO_INPUT_SVIDEO:
+ index = 1;
+ break;
+ }
+ } else if (vino_drvdata->camera) {
+ switch (vcs->input) {
+ case VINO_INPUT_D1:
+ index = 0;
+ break;
+ }
+ }
+
+ return index;
+}
+
+/* V4L2 ioctls */
+
+static int vino_querycap(struct file *file, void *__fh,
+ struct v4l2_capability *cap)
+{
+ memset(cap, 0, sizeof(struct v4l2_capability));
+
+ strcpy(cap->driver, vino_driver_name);
+ strcpy(cap->card, vino_driver_description);
+ strcpy(cap->bus_info, vino_bus_name);
+ cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
+ cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+ return 0;
+}
+
+static int vino_enum_input(struct file *file, void *__fh,
+ struct v4l2_input *i)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ __u32 index = i->index;
+ int input;
+ dprintk("requested index = %d\n", index);
+
+ input = vino_int_enum_input(vcs, index);
+ if (input == VINO_INPUT_NONE)
+ return -EINVAL;
+
+ i->type = V4L2_INPUT_TYPE_CAMERA;
+ i->std = vino_inputs[input].std;
+ strcpy(i->name, vino_inputs[input].name);
+
+ if (input == VINO_INPUT_COMPOSITE || input == VINO_INPUT_SVIDEO)
+ decoder_call(video, g_input_status, &i->status);
+ return 0;
+}
+
+static int vino_g_input(struct file *file, void *__fh,
+ unsigned int *i)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ __u32 index;
+ int input;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+ input = vcs->input;
+ index = vino_find_input_index(vcs);
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ dprintk("input = %d\n", input);
+
+ if (input == VINO_INPUT_NONE) {
+ return -EINVAL;
+ }
+
+ *i = index;
+
+ return 0;
+}
+
+static int vino_s_input(struct file *file, void *__fh,
+ unsigned int i)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ int input;
+ dprintk("requested input = %d\n", i);
+
+ input = vino_int_enum_input(vcs, i);
+ if (input == VINO_INPUT_NONE)
+ return -EINVAL;
+
+ return vino_set_input(vcs, input);
+}
+
+static int vino_querystd(struct file *file, void *__fh,
+ v4l2_std_id *std)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned long flags;
+ int err = 0;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ switch (vcs->input) {
+ case VINO_INPUT_D1:
+ *std = vino_inputs[vcs->input].std;
+ break;
+ case VINO_INPUT_COMPOSITE:
+ case VINO_INPUT_SVIDEO: {
+ decoder_call(video, querystd, std);
+ break;
+ }
+ default:
+ err = -EINVAL;
+ }
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ return err;
+}
+
+static int vino_g_std(struct file *file, void *__fh,
+ v4l2_std_id *std)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned long flags;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ *std = vino_data_norms[vcs->data_norm].std;
+ dprintk("current standard = %d\n", vcs->data_norm);
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ return 0;
+}
+
+static int vino_s_std(struct file *file, void *__fh,
+ v4l2_std_id std)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ if (!vino_is_input_owner(vcs)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ /* check if the standard is valid for the current input */
+ if (std & vino_inputs[vcs->input].std) {
+ dprintk("standard accepted\n");
+
+ /* change the video norm for SAA7191
+ * and accept NTSC for D1 (do nothing) */
+
+ if (vcs->input == VINO_INPUT_D1)
+ goto out;
+
+ if (std & V4L2_STD_PAL) {
+ ret = vino_set_data_norm(vcs, VINO_DATA_NORM_PAL,
+ &flags);
+ } else if (std & V4L2_STD_NTSC) {
+ ret = vino_set_data_norm(vcs, VINO_DATA_NORM_NTSC,
+ &flags);
+ } else if (std & V4L2_STD_SECAM) {
+ ret = vino_set_data_norm(vcs, VINO_DATA_NORM_SECAM,
+ &flags);
+ } else {
+ ret = -EINVAL;
+ }
+
+ if (ret) {
+ ret = -EINVAL;
+ }
+ } else {
+ ret = -EINVAL;
+ }
+
+out:
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ return ret;
+}
+
+static int vino_enum_fmt_vid_cap(struct file *file, void *__fh,
+ struct v4l2_fmtdesc *fd)
+{
+ dprintk("format index = %d\n", fd->index);
+
+ if (fd->index >= VINO_DATA_FMT_COUNT)
+ return -EINVAL;
+ dprintk("format name = %s\n", vino_data_formats[fd->index].description);
+
+ fd->pixelformat = vino_data_formats[fd->index].pixelformat;
+ strcpy(fd->description, vino_data_formats[fd->index].description);
+ return 0;
+}
+
+static int vino_try_fmt_vid_cap(struct file *file, void *__fh,
+ struct v4l2_format *f)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ struct vino_channel_settings tempvcs;
+ unsigned long flags;
+ struct v4l2_pix_format *pf = &f->fmt.pix;
+
+ dprintk("requested: w = %d, h = %d\n",
+ pf->width, pf->height);
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+ memcpy(&tempvcs, vcs, sizeof(struct vino_channel_settings));
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ tempvcs.data_format = vino_find_data_format(pf->pixelformat);
+ if (tempvcs.data_format == VINO_DATA_FMT_NONE) {
+ tempvcs.data_format = VINO_DATA_FMT_GREY;
+ pf->pixelformat =
+ vino_data_formats[tempvcs.data_format].
+ pixelformat;
+ }
+
+ /* data format must be set before clipping/scaling */
+ vino_set_scaling(&tempvcs, pf->width, pf->height);
+
+ dprintk("data format = %s\n",
+ vino_data_formats[tempvcs.data_format].description);
+
+ pf->width = (tempvcs.clipping.right - tempvcs.clipping.left) /
+ tempvcs.decimation;
+ pf->height = (tempvcs.clipping.bottom - tempvcs.clipping.top) /
+ tempvcs.decimation;
+
+ pf->field = V4L2_FIELD_INTERLACED;
+ pf->bytesperline = tempvcs.line_size;
+ pf->sizeimage = tempvcs.line_size *
+ (tempvcs.clipping.bottom - tempvcs.clipping.top) /
+ tempvcs.decimation;
+ pf->colorspace =
+ vino_data_formats[tempvcs.data_format].colorspace;
+
+ return 0;
+}
+
+static int vino_g_fmt_vid_cap(struct file *file, void *__fh,
+ struct v4l2_format *f)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned long flags;
+ struct v4l2_pix_format *pf = &f->fmt.pix;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ pf->width = (vcs->clipping.right - vcs->clipping.left) /
+ vcs->decimation;
+ pf->height = (vcs->clipping.bottom - vcs->clipping.top) /
+ vcs->decimation;
+ pf->pixelformat =
+ vino_data_formats[vcs->data_format].pixelformat;
+
+ pf->field = V4L2_FIELD_INTERLACED;
+ pf->bytesperline = vcs->line_size;
+ pf->sizeimage = vcs->line_size *
+ (vcs->clipping.bottom - vcs->clipping.top) /
+ vcs->decimation;
+ pf->colorspace =
+ vino_data_formats[vcs->data_format].colorspace;
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+ return 0;
+}
+
+static int vino_s_fmt_vid_cap(struct file *file, void *__fh,
+ struct v4l2_format *f)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ int data_format;
+ unsigned long flags;
+ struct v4l2_pix_format *pf = &f->fmt.pix;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ data_format = vino_find_data_format(pf->pixelformat);
+
+ if (data_format == VINO_DATA_FMT_NONE) {
+ vcs->data_format = VINO_DATA_FMT_GREY;
+ pf->pixelformat =
+ vino_data_formats[vcs->data_format].
+ pixelformat;
+ } else {
+ vcs->data_format = data_format;
+ }
+
+ /* data format must be set before clipping/scaling */
+ vino_set_scaling(vcs, pf->width, pf->height);
+
+ dprintk("data format = %s\n",
+ vino_data_formats[vcs->data_format].description);
+
+ pf->width = vcs->clipping.right - vcs->clipping.left;
+ pf->height = vcs->clipping.bottom - vcs->clipping.top;
+
+ pf->field = V4L2_FIELD_INTERLACED;
+ pf->bytesperline = vcs->line_size;
+ pf->sizeimage = vcs->line_size *
+ (vcs->clipping.bottom - vcs->clipping.top) /
+ vcs->decimation;
+ pf->colorspace =
+ vino_data_formats[vcs->data_format].colorspace;
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+ return 0;
+}
+
+static int vino_cropcap(struct file *file, void *__fh,
+ struct v4l2_cropcap *ccap)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ const struct vino_data_norm *norm;
+ unsigned long flags;
+
+ switch (ccap->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ norm = &vino_data_norms[vcs->data_norm];
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ ccap->bounds.left = 0;
+ ccap->bounds.top = 0;
+ ccap->bounds.width = norm->width;
+ ccap->bounds.height = norm->height;
+ memcpy(&ccap->defrect, &ccap->bounds,
+ sizeof(struct v4l2_rect));
+
+ ccap->pixelaspect.numerator = 1;
+ ccap->pixelaspect.denominator = 1;
+ break;
+ case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int vino_g_crop(struct file *file, void *__fh,
+ struct v4l2_crop *c)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned long flags;
+
+ switch (c->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ c->c.left = vcs->clipping.left;
+ c->c.top = vcs->clipping.top;
+ c->c.width = vcs->clipping.right - vcs->clipping.left;
+ c->c.height = vcs->clipping.bottom - vcs->clipping.top;
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+ break;
+ case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int vino_s_crop(struct file *file, void *__fh,
+ const struct v4l2_crop *c)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned long flags;
+
+ switch (c->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ vino_set_clipping(vcs, c->c.left, c->c.top,
+ c->c.width, c->c.height);
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+ break;
+ case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int vino_g_parm(struct file *file, void *__fh,
+ struct v4l2_streamparm *sp)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned long flags;
+ struct v4l2_captureparm *cp = &sp->parm.capture;
+
+ cp->capability = V4L2_CAP_TIMEPERFRAME;
+ cp->timeperframe.numerator = 1;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ cp->timeperframe.denominator = vcs->fps;
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ /* TODO: cp->readbuffers = xxx; */
+
+ return 0;
+}
+
+static int vino_s_parm(struct file *file, void *__fh,
+ struct v4l2_streamparm *sp)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned long flags;
+ struct v4l2_captureparm *cp = &sp->parm.capture;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ if ((cp->timeperframe.numerator == 0) ||
+ (cp->timeperframe.denominator == 0)) {
+ /* reset framerate */
+ vino_set_default_framerate(vcs);
+ } else {
+ vino_set_framerate(vcs, cp->timeperframe.denominator /
+ cp->timeperframe.numerator);
+ }
+
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ return 0;
+}
+
+static int vino_reqbufs(struct file *file, void *__fh,
+ struct v4l2_requestbuffers *rb)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+
+ if (vcs->reading)
+ return -EBUSY;
+
+ /* TODO: check queue type */
+ if (rb->memory != V4L2_MEMORY_MMAP) {
+ dprintk("type not mmap\n");
+ return -EINVAL;
+ }
+
+ dprintk("count = %d\n", rb->count);
+ if (rb->count > 0) {
+ if (vino_is_capturing(vcs)) {
+ dprintk("busy, capturing\n");
+ return -EBUSY;
+ }
+
+ if (vino_queue_has_mapped_buffers(&vcs->fb_queue)) {
+ dprintk("busy, buffers still mapped\n");
+ return -EBUSY;
+ } else {
+ vcs->streaming = 0;
+ vino_queue_free(&vcs->fb_queue);
+ vino_queue_init(&vcs->fb_queue, &rb->count);
+ }
+ } else {
+ vcs->streaming = 0;
+ vino_capture_stop(vcs);
+ vino_queue_free(&vcs->fb_queue);
+ }
+
+ return 0;
+}
+
+static void vino_v4l2_get_buffer_status(struct vino_channel_settings *vcs,
+ struct vino_framebuffer *fb,
+ struct v4l2_buffer *b)
+{
+ if (vino_queue_outgoing_contains(&vcs->fb_queue,
+ fb->id)) {
+ b->flags &= ~V4L2_BUF_FLAG_QUEUED;
+ b->flags |= V4L2_BUF_FLAG_DONE;
+ } else if (vino_queue_incoming_contains(&vcs->fb_queue,
+ fb->id)) {
+ b->flags &= ~V4L2_BUF_FLAG_DONE;
+ b->flags |= V4L2_BUF_FLAG_QUEUED;
+ } else {
+ b->flags &= ~(V4L2_BUF_FLAG_DONE |
+ V4L2_BUF_FLAG_QUEUED);
+ }
+
+ b->flags &= ~(V4L2_BUF_FLAG_TIMECODE);
+
+ if (fb->map_count > 0)
+ b->flags |= V4L2_BUF_FLAG_MAPPED;
+
+ b->flags &= ~V4L2_BUF_FLAG_TIMESTAMP_MASK;
+ b->flags |= V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+
+ b->index = fb->id;
+ b->memory = (vcs->fb_queue.type == VINO_MEMORY_MMAP) ?
+ V4L2_MEMORY_MMAP : V4L2_MEMORY_USERPTR;
+ b->m.offset = fb->offset;
+ b->bytesused = fb->data_size;
+ b->length = fb->size;
+ b->field = V4L2_FIELD_INTERLACED;
+ b->sequence = fb->frame_counter;
+ memcpy(&b->timestamp, &fb->timestamp,
+ sizeof(struct timeval));
+ // b->input ?
+
+ dprintk("buffer %d: length = %d, bytesused = %d, offset = %d\n",
+ fb->id, fb->size, fb->data_size, fb->offset);
+}
+
+static int vino_querybuf(struct file *file, void *__fh,
+ struct v4l2_buffer *b)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ struct vino_framebuffer *fb;
+
+ if (vcs->reading)
+ return -EBUSY;
+
+ /* TODO: check queue type */
+ if (b->index >= vino_queue_get_length(&vcs->fb_queue)) {
+ dprintk("invalid index = %d\n",
+ b->index);
+ return -EINVAL;
+ }
+
+ fb = vino_queue_get_buffer(&vcs->fb_queue,
+ b->index);
+ if (fb == NULL) {
+ dprintk("vino_queue_get_buffer() failed");
+ return -EINVAL;
+ }
+
+ vino_v4l2_get_buffer_status(vcs, fb, b);
+
+ return 0;
+}
+
+static int vino_qbuf(struct file *file, void *__fh,
+ struct v4l2_buffer *b)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ struct vino_framebuffer *fb;
+ int ret;
+
+ if (vcs->reading)
+ return -EBUSY;
+
+ /* TODO: check queue type */
+ if (b->memory != V4L2_MEMORY_MMAP) {
+ dprintk("type not mmap\n");
+ return -EINVAL;
+ }
+
+ fb = vino_capture_enqueue(vcs, b->index);
+ if (fb == NULL)
+ return -EINVAL;
+
+ vino_v4l2_get_buffer_status(vcs, fb, b);
+
+ if (vcs->streaming) {
+ ret = vino_capture_next(vcs, 1);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int vino_dqbuf(struct file *file, void *__fh,
+ struct v4l2_buffer *b)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned int nonblocking = file->f_flags & O_NONBLOCK;
+ struct vino_framebuffer *fb;
+ unsigned int incoming, outgoing;
+ int err;
+
+ if (vcs->reading)
+ return -EBUSY;
+
+ /* TODO: check queue type */
+
+ err = vino_queue_get_incoming(&vcs->fb_queue, &incoming);
+ if (err) {
+ dprintk("vino_queue_get_incoming() failed\n");
+ return -EINVAL;
+ }
+ err = vino_queue_get_outgoing(&vcs->fb_queue, &outgoing);
+ if (err) {
+ dprintk("vino_queue_get_outgoing() failed\n");
+ return -EINVAL;
+ }
+
+ dprintk("incoming = %d, outgoing = %d\n", incoming, outgoing);
+
+ if (outgoing == 0) {
+ if (incoming == 0) {
+ dprintk("no incoming or outgoing buffers\n");
+ return -EINVAL;
+ }
+ if (nonblocking) {
+ dprintk("non-blocking I/O was selected and "
+ "there are no buffers to dequeue\n");
+ return -EAGAIN;
+ }
+
+ err = vino_wait_for_frame(vcs);
+ if (err) {
+ err = vino_wait_for_frame(vcs);
+ if (err) {
+ /* interrupted or no frames captured because of
+ * frame skipping */
+ /* vino_capture_failed(vcs); */
+ return -EIO;
+ }
+ }
+ }
+
+ fb = vino_queue_remove(&vcs->fb_queue, &b->index);
+ if (fb == NULL) {
+ dprintk("vino_queue_remove() failed\n");
+ return -EINVAL;
+ }
+
+ err = vino_check_buffer(vcs, fb);
+
+ vino_v4l2_get_buffer_status(vcs, fb, b);
+
+ if (err)
+ return -EIO;
+
+ return 0;
+}
+
+static int vino_streamon(struct file *file, void *__fh,
+ enum v4l2_buf_type i)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned int incoming;
+ int ret;
+ if (vcs->reading)
+ return -EBUSY;
+
+ if (vcs->streaming)
+ return 0;
+
+ // TODO: check queue type
+
+ if (vino_queue_get_length(&vcs->fb_queue) < 1) {
+ dprintk("no buffers allocated\n");
+ return -EINVAL;
+ }
+
+ ret = vino_queue_get_incoming(&vcs->fb_queue, &incoming);
+ if (ret) {
+ dprintk("vino_queue_get_incoming() failed\n");
+ return -EINVAL;
+ }
+
+ vcs->streaming = 1;
+
+ if (incoming > 0) {
+ ret = vino_capture_next(vcs, 1);
+ if (ret) {
+ vcs->streaming = 0;
+
+ dprintk("couldn't start capture\n");
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int vino_streamoff(struct file *file, void *__fh,
+ enum v4l2_buf_type i)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ if (vcs->reading)
+ return -EBUSY;
+
+ if (!vcs->streaming)
+ return 0;
+
+ vcs->streaming = 0;
+ vino_capture_stop(vcs);
+
+ return 0;
+}
+
+static int vino_queryctrl(struct file *file, void *__fh,
+ struct v4l2_queryctrl *queryctrl)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned long flags;
+ int i;
+ int err = 0;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ switch (vcs->input) {
+ case VINO_INPUT_D1:
+ for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) {
+ if (vino_indycam_v4l2_controls[i].id ==
+ queryctrl->id) {
+ memcpy(queryctrl,
+ &vino_indycam_v4l2_controls[i],
+ sizeof(struct v4l2_queryctrl));
+ queryctrl->reserved[0] = 0;
+ goto found;
+ }
+ }
+
+ err = -EINVAL;
+ break;
+ case VINO_INPUT_COMPOSITE:
+ case VINO_INPUT_SVIDEO:
+ for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) {
+ if (vino_saa7191_v4l2_controls[i].id ==
+ queryctrl->id) {
+ memcpy(queryctrl,
+ &vino_saa7191_v4l2_controls[i],
+ sizeof(struct v4l2_queryctrl));
+ queryctrl->reserved[0] = 0;
+ goto found;
+ }
+ }
+
+ err = -EINVAL;
+ break;
+ default:
+ err = -EINVAL;
+ }
+
+ found:
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ return err;
+}
+
+static int vino_g_ctrl(struct file *file, void *__fh,
+ struct v4l2_control *control)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned long flags;
+ int i;
+ int err = 0;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ switch (vcs->input) {
+ case VINO_INPUT_D1: {
+ err = -EINVAL;
+ for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) {
+ if (vino_indycam_v4l2_controls[i].id == control->id) {
+ err = 0;
+ break;
+ }
+ }
+
+ if (err)
+ goto out;
+
+ err = camera_call(core, g_ctrl, control);
+ if (err)
+ err = -EINVAL;
+ break;
+ }
+ case VINO_INPUT_COMPOSITE:
+ case VINO_INPUT_SVIDEO: {
+ err = -EINVAL;
+ for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) {
+ if (vino_saa7191_v4l2_controls[i].id == control->id) {
+ err = 0;
+ break;
+ }
+ }
+
+ if (err)
+ goto out;
+
+ err = decoder_call(core, g_ctrl, control);
+ if (err)
+ err = -EINVAL;
+ break;
+ }
+ default:
+ err = -EINVAL;
+ }
+
+out:
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ return err;
+}
+
+static int vino_s_ctrl(struct file *file, void *__fh,
+ struct v4l2_control *control)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned long flags;
+ int i;
+ int err = 0;
+
+ spin_lock_irqsave(&vino_drvdata->input_lock, flags);
+
+ if (!vino_is_input_owner(vcs)) {
+ err = -EBUSY;
+ goto out;
+ }
+
+ switch (vcs->input) {
+ case VINO_INPUT_D1: {
+ err = -EINVAL;
+ for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) {
+ if (vino_indycam_v4l2_controls[i].id == control->id) {
+ err = 0;
+ break;
+ }
+ }
+ if (err)
+ goto out;
+ if (control->value < vino_indycam_v4l2_controls[i].minimum ||
+ control->value > vino_indycam_v4l2_controls[i].maximum) {
+ err = -ERANGE;
+ goto out;
+ }
+ err = camera_call(core, s_ctrl, control);
+ if (err)
+ err = -EINVAL;
+ break;
+ }
+ case VINO_INPUT_COMPOSITE:
+ case VINO_INPUT_SVIDEO: {
+ err = -EINVAL;
+ for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) {
+ if (vino_saa7191_v4l2_controls[i].id == control->id) {
+ err = 0;
+ break;
+ }
+ }
+ if (err)
+ goto out;
+ if (control->value < vino_saa7191_v4l2_controls[i].minimum ||
+ control->value > vino_saa7191_v4l2_controls[i].maximum) {
+ err = -ERANGE;
+ goto out;
+ }
+
+ err = decoder_call(core, s_ctrl, control);
+ if (err)
+ err = -EINVAL;
+ break;
+ }
+ default:
+ err = -EINVAL;
+ }
+
+out:
+ spin_unlock_irqrestore(&vino_drvdata->input_lock, flags);
+
+ return err;
+}
+
+/* File operations */
+
+static int vino_open(struct file *file)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ int ret = 0;
+ dprintk("open(): channel = %c\n",
+ (vcs->channel == VINO_CHANNEL_A) ? 'A' : 'B');
+
+ mutex_lock(&vcs->mutex);
+
+ if (vcs->users) {
+ dprintk("open(): driver busy\n");
+ ret = -EBUSY;
+ goto out;
+ }
+
+ ret = vino_acquire_input(vcs);
+ if (ret) {
+ dprintk("open(): vino_acquire_input() failed\n");
+ goto out;
+ }
+
+ vcs->users++;
+
+ out:
+ mutex_unlock(&vcs->mutex);
+
+ dprintk("open(): %s!\n", ret ? "failed" : "complete");
+
+ return ret;
+}
+
+static int vino_close(struct file *file)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ dprintk("close():\n");
+
+ mutex_lock(&vcs->mutex);
+
+ vcs->users--;
+
+ if (!vcs->users) {
+ vino_release_input(vcs);
+
+ /* stop DMA and free buffers */
+ vino_capture_stop(vcs);
+ vino_queue_free(&vcs->fb_queue);
+ }
+
+ mutex_unlock(&vcs->mutex);
+
+ return 0;
+}
+
+static void vino_vm_open(struct vm_area_struct *vma)
+{
+ struct vino_framebuffer *fb = vma->vm_private_data;
+
+ fb->map_count++;
+ dprintk("vino_vm_open(): count = %d\n", fb->map_count);
+}
+
+static void vino_vm_close(struct vm_area_struct *vma)
+{
+ struct vino_framebuffer *fb = vma->vm_private_data;
+
+ fb->map_count--;
+ dprintk("vino_vm_close(): count = %d\n", fb->map_count);
+}
+
+static const struct vm_operations_struct vino_vm_ops = {
+ .open = vino_vm_open,
+ .close = vino_vm_close,
+};
+
+static int vino_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+
+ unsigned long start = vma->vm_start;
+ unsigned long size = vma->vm_end - vma->vm_start;
+ unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
+
+ struct vino_framebuffer *fb = NULL;
+ unsigned int i, length;
+ int ret = 0;
+
+ dprintk("mmap():\n");
+
+ // TODO: reject mmap if already mapped
+
+ if (mutex_lock_interruptible(&vcs->mutex))
+ return -EINTR;
+
+ if (vcs->reading) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ // TODO: check queue type
+
+ if (!(vma->vm_flags & VM_WRITE)) {
+ dprintk("mmap(): app bug: PROT_WRITE please\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ if (!(vma->vm_flags & VM_SHARED)) {
+ dprintk("mmap(): app bug: MAP_SHARED please\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* find the correct buffer using offset */
+ length = vino_queue_get_length(&vcs->fb_queue);
+ if (length == 0) {
+ dprintk("mmap(): queue not initialized\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ for (i = 0; i < length; i++) {
+ fb = vino_queue_get_buffer(&vcs->fb_queue, i);
+ if (fb == NULL) {
+ dprintk("mmap(): vino_queue_get_buffer() failed\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (fb->offset == offset)
+ goto found;
+ }
+
+ dprintk("mmap(): invalid offset = %lu\n", offset);
+ ret = -EINVAL;
+ goto out;
+
+found:
+ dprintk("mmap(): buffer = %d\n", i);
+
+ if (size > (fb->desc_table.page_count * PAGE_SIZE)) {
+ dprintk("mmap(): failed: size = %lu > %lu\n",
+ size, fb->desc_table.page_count * PAGE_SIZE);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ for (i = 0; i < fb->desc_table.page_count; i++) {
+ unsigned long pfn =
+ virt_to_phys((void *)fb->desc_table.virtual[i]) >>
+ PAGE_SHIFT;
+
+ if (size < PAGE_SIZE)
+ break;
+
+ // protection was: PAGE_READONLY
+ if (remap_pfn_range(vma, start, pfn, PAGE_SIZE,
+ vma->vm_page_prot)) {
+ dprintk("mmap(): remap_pfn_range() failed\n");
+ ret = -EAGAIN;
+ goto out;
+ }
+
+ start += PAGE_SIZE;
+ size -= PAGE_SIZE;
+ }
+
+ fb->map_count = 1;
+
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
+ vma->vm_flags &= ~VM_IO;
+ vma->vm_private_data = fb;
+ vma->vm_file = file;
+ vma->vm_ops = &vino_vm_ops;
+
+out:
+ mutex_unlock(&vcs->mutex);
+
+ return ret;
+}
+
+static unsigned int vino_poll(struct file *file, poll_table *pt)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ unsigned int outgoing;
+ unsigned int ret = 0;
+
+ // lock mutex (?)
+ // TODO: this has to be corrected for different read modes
+
+ dprintk("poll():\n");
+
+ if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
+ dprintk("poll(): vino_queue_get_outgoing() failed\n");
+ ret = POLLERR;
+ goto error;
+ }
+ if (outgoing > 0)
+ goto over;
+
+ poll_wait(file, &vcs->fb_queue.frame_wait_queue, pt);
+
+ if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) {
+ dprintk("poll(): vino_queue_get_outgoing() failed\n");
+ ret = POLLERR;
+ goto error;
+ }
+
+over:
+ dprintk("poll(): data %savailable\n",
+ (outgoing > 0) ? "" : "not ");
+
+ if (outgoing > 0)
+ ret = POLLIN | POLLRDNORM;
+
+error:
+ return ret;
+}
+
+static long vino_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct vino_channel_settings *vcs = video_drvdata(file);
+ long ret;
+
+ if (mutex_lock_interruptible(&vcs->mutex))
+ return -EINTR;
+
+ ret = video_ioctl2(file, cmd, arg);
+
+ mutex_unlock(&vcs->mutex);
+
+ return ret;
+}
+
+/* Initialization and cleanup */
+
+/* __initdata */
+static int vino_init_stage;
+
+const struct v4l2_ioctl_ops vino_ioctl_ops = {
+ .vidioc_enum_fmt_vid_cap = vino_enum_fmt_vid_cap,
+ .vidioc_g_fmt_vid_cap = vino_g_fmt_vid_cap,
+ .vidioc_s_fmt_vid_cap = vino_s_fmt_vid_cap,
+ .vidioc_try_fmt_vid_cap = vino_try_fmt_vid_cap,
+ .vidioc_querycap = vino_querycap,
+ .vidioc_enum_input = vino_enum_input,
+ .vidioc_g_input = vino_g_input,
+ .vidioc_s_input = vino_s_input,
+ .vidioc_g_std = vino_g_std,
+ .vidioc_s_std = vino_s_std,
+ .vidioc_querystd = vino_querystd,
+ .vidioc_cropcap = vino_cropcap,
+ .vidioc_s_crop = vino_s_crop,
+ .vidioc_g_crop = vino_g_crop,
+ .vidioc_s_parm = vino_s_parm,
+ .vidioc_g_parm = vino_g_parm,
+ .vidioc_reqbufs = vino_reqbufs,
+ .vidioc_querybuf = vino_querybuf,
+ .vidioc_qbuf = vino_qbuf,
+ .vidioc_dqbuf = vino_dqbuf,
+ .vidioc_streamon = vino_streamon,
+ .vidioc_streamoff = vino_streamoff,
+ .vidioc_queryctrl = vino_queryctrl,
+ .vidioc_g_ctrl = vino_g_ctrl,
+ .vidioc_s_ctrl = vino_s_ctrl,
+};
+
+static const struct v4l2_file_operations vino_fops = {
+ .owner = THIS_MODULE,
+ .open = vino_open,
+ .release = vino_close,
+ .unlocked_ioctl = vino_ioctl,
+ .mmap = vino_mmap,
+ .poll = vino_poll,
+};
+
+static struct video_device vdev_template = {
+ .name = "NOT SET",
+ .fops = &vino_fops,
+ .ioctl_ops = &vino_ioctl_ops,
+ .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
+};
+
+static void vino_module_cleanup(int stage)
+{
+ switch(stage) {
+ case 11:
+ video_unregister_device(vino_drvdata->b.vdev);
+ vino_drvdata->b.vdev = NULL;
+ case 10:
+ video_unregister_device(vino_drvdata->a.vdev);
+ vino_drvdata->a.vdev = NULL;
+ case 9:
+ i2c_del_adapter(&vino_i2c_adapter);
+ case 8:
+ free_irq(SGI_VINO_IRQ, NULL);
+ case 7:
+ if (vino_drvdata->b.vdev) {
+ video_device_release(vino_drvdata->b.vdev);
+ vino_drvdata->b.vdev = NULL;
+ }
+ case 6:
+ if (vino_drvdata->a.vdev) {
+ video_device_release(vino_drvdata->a.vdev);
+ vino_drvdata->a.vdev = NULL;
+ }
+ case 5:
+ /* all entries in dma_cpu dummy table have the same address */
+ dma_unmap_single(NULL,
+ vino_drvdata->dummy_desc_table.dma_cpu[0],
+ PAGE_SIZE, DMA_FROM_DEVICE);
+ dma_free_coherent(NULL, VINO_DUMMY_DESC_COUNT
+ * sizeof(dma_addr_t),
+ (void *)vino_drvdata->
+ dummy_desc_table.dma_cpu,
+ vino_drvdata->dummy_desc_table.dma);
+ case 4:
+ free_page(vino_drvdata->dummy_page);
+ case 3:
+ v4l2_device_unregister(&vino_drvdata->v4l2_dev);
+ case 2:
+ kfree(vino_drvdata);
+ case 1:
+ iounmap(vino);
+ case 0:
+ break;
+ default:
+ dprintk("vino_module_cleanup(): invalid cleanup stage = %d\n",
+ stage);
+ }
+}
+
+static int vino_probe(void)
+{
+ unsigned long rev_id;
+
+ if (ip22_is_fullhouse()) {
+ printk(KERN_ERR "VINO doesn't exist in IP22 Fullhouse\n");
+ return -ENODEV;
+ }
+
+ if (!(sgimc->systemid & SGIMC_SYSID_EPRESENT)) {
+ printk(KERN_ERR "VINO is not found (EISA BUS not present)\n");
+ return -ENODEV;
+ }
+
+ vino = (struct sgi_vino *)ioremap(VINO_BASE, sizeof(struct sgi_vino));
+ if (!vino) {
+ printk(KERN_ERR "VINO: ioremap() failed\n");
+ return -EIO;
+ }
+ vino_init_stage++;
+
+ if (get_dbe(rev_id, &(vino->rev_id))) {
+ printk(KERN_ERR "Failed to read VINO revision register\n");
+ vino_module_cleanup(vino_init_stage);
+ return -ENODEV;
+ }
+
+ if (VINO_ID_VALUE(rev_id) != VINO_CHIP_ID) {
+ printk(KERN_ERR "Unknown VINO chip ID (Rev/ID: 0x%02lx)\n",
+ rev_id);
+ vino_module_cleanup(vino_init_stage);
+ return -ENODEV;
+ }
+
+ printk(KERN_INFO "VINO revision %ld found\n", VINO_REV_NUM(rev_id));
+
+ return 0;
+}
+
+static int vino_init(void)
+{
+ dma_addr_t dma_dummy_address;
+ int err;
+ int i;
+
+ vino_drvdata = kzalloc(sizeof(struct vino_settings), GFP_KERNEL);
+ if (!vino_drvdata) {
+ vino_module_cleanup(vino_init_stage);
+ return -ENOMEM;
+ }
+ vino_init_stage++;
+ strlcpy(vino_drvdata->v4l2_dev.name, "vino",
+ sizeof(vino_drvdata->v4l2_dev.name));
+ err = v4l2_device_register(NULL, &vino_drvdata->v4l2_dev);
+ if (err)
+ return err;
+ vino_init_stage++;
+
+ /* create a dummy dma descriptor */
+ vino_drvdata->dummy_page = get_zeroed_page(GFP_KERNEL | GFP_DMA);
+ if (!vino_drvdata->dummy_page) {
+ vino_module_cleanup(vino_init_stage);
+ return -ENOMEM;
+ }
+ vino_init_stage++;
+
+ // TODO: use page_count in dummy_desc_table
+
+ vino_drvdata->dummy_desc_table.dma_cpu =
+ dma_alloc_coherent(NULL,
+ VINO_DUMMY_DESC_COUNT * sizeof(dma_addr_t),
+ &vino_drvdata->dummy_desc_table.dma,
+ GFP_KERNEL | GFP_DMA);
+ if (!vino_drvdata->dummy_desc_table.dma_cpu) {
+ vino_module_cleanup(vino_init_stage);
+ return -ENOMEM;
+ }
+ vino_init_stage++;
+
+ dma_dummy_address = dma_map_single(NULL,
+ (void *)vino_drvdata->dummy_page,
+ PAGE_SIZE, DMA_FROM_DEVICE);
+ for (i = 0; i < VINO_DUMMY_DESC_COUNT; i++) {
+ vino_drvdata->dummy_desc_table.dma_cpu[i] = dma_dummy_address;
+ }
+
+ /* initialize VINO */
+
+ vino->control = 0;
+ vino->a.next_4_desc = vino_drvdata->dummy_desc_table.dma;
+ vino->b.next_4_desc = vino_drvdata->dummy_desc_table.dma;
+ udelay(VINO_DESC_FETCH_DELAY);
+
+ vino->intr_status = 0;
+
+ vino->a.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT;
+ vino->b.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT;
+
+ return 0;
+}
+
+static int vino_init_channel_settings(struct vino_channel_settings *vcs,
+ unsigned int channel, const char *name)
+{
+ vcs->channel = channel;
+ vcs->input = VINO_INPUT_NONE;
+ vcs->alpha = 0;
+ vcs->users = 0;
+ vcs->data_format = VINO_DATA_FMT_GREY;
+ vcs->data_norm = VINO_DATA_NORM_NTSC;
+ vcs->decimation = 1;
+ vino_set_default_clipping(vcs);
+ vino_set_default_framerate(vcs);
+
+ vcs->capturing = 0;
+
+ mutex_init(&vcs->mutex);
+ spin_lock_init(&vcs->capture_lock);
+
+ mutex_init(&vcs->fb_queue.queue_mutex);
+ spin_lock_init(&vcs->fb_queue.queue_lock);
+ init_waitqueue_head(&vcs->fb_queue.frame_wait_queue);
+
+ vcs->vdev = video_device_alloc();
+ if (!vcs->vdev) {
+ vino_module_cleanup(vino_init_stage);
+ return -ENOMEM;
+ }
+ vino_init_stage++;
+
+ memcpy(vcs->vdev, &vdev_template,
+ sizeof(struct video_device));
+ strcpy(vcs->vdev->name, name);
+ vcs->vdev->release = video_device_release;
+ vcs->vdev->v4l2_dev = &vino_drvdata->v4l2_dev;
+
+ video_set_drvdata(vcs->vdev, vcs);
+
+ return 0;
+}
+
+static int __init vino_module_init(void)
+{
+ int ret;
+
+ printk(KERN_INFO "SGI VINO driver version %s\n",
+ VINO_MODULE_VERSION);
+
+ ret = vino_probe();
+ if (ret)
+ return ret;
+
+ ret = vino_init();
+ if (ret)
+ return ret;
+
+ /* initialize data structures */
+
+ spin_lock_init(&vino_drvdata->vino_lock);
+ spin_lock_init(&vino_drvdata->input_lock);
+
+ ret = vino_init_channel_settings(&vino_drvdata->a, VINO_CHANNEL_A,
+ vino_vdev_name_a);
+ if (ret)
+ return ret;
+
+ ret = vino_init_channel_settings(&vino_drvdata->b, VINO_CHANNEL_B,
+ vino_vdev_name_b);
+ if (ret)
+ return ret;
+
+ /* initialize hardware and register V4L devices */
+
+ ret = request_irq(SGI_VINO_IRQ, vino_interrupt, 0,
+ vino_driver_description, NULL);
+ if (ret) {
+ printk(KERN_ERR "VINO: requesting IRQ %02d failed\n",
+ SGI_VINO_IRQ);
+ vino_module_cleanup(vino_init_stage);
+ return -EAGAIN;
+ }
+ vino_init_stage++;
+
+ ret = i2c_add_adapter(&vino_i2c_adapter);
+ if (ret) {
+ printk(KERN_ERR "VINO I2C bus registration failed\n");
+ vino_module_cleanup(vino_init_stage);
+ return ret;
+ }
+ i2c_set_adapdata(&vino_i2c_adapter, &vino_drvdata->v4l2_dev);
+ vino_init_stage++;
+
+ ret = video_register_device(vino_drvdata->a.vdev,
+ VFL_TYPE_GRABBER, -1);
+ if (ret < 0) {
+ printk(KERN_ERR "VINO channel A Video4Linux-device "
+ "registration failed\n");
+ vino_module_cleanup(vino_init_stage);
+ return -EINVAL;
+ }
+ vino_init_stage++;
+
+ ret = video_register_device(vino_drvdata->b.vdev,
+ VFL_TYPE_GRABBER, -1);
+ if (ret < 0) {
+ printk(KERN_ERR "VINO channel B Video4Linux-device "
+ "registration failed\n");
+ vino_module_cleanup(vino_init_stage);
+ return -EINVAL;
+ }
+ vino_init_stage++;
+
+ vino_drvdata->decoder =
+ v4l2_i2c_new_subdev(&vino_drvdata->v4l2_dev, &vino_i2c_adapter,
+ "saa7191", 0, I2C_ADDRS(0x45));
+ vino_drvdata->camera =
+ v4l2_i2c_new_subdev(&vino_drvdata->v4l2_dev, &vino_i2c_adapter,
+ "indycam", 0, I2C_ADDRS(0x2b));
+
+ dprintk("init complete!\n");
+
+ return 0;
+}
+
+static void __exit vino_module_exit(void)
+{
+ dprintk("exiting, stage = %d ...\n", vino_init_stage);
+ vino_module_cleanup(vino_init_stage);
+ dprintk("cleanup complete, exit!\n");
+}
+
+module_init(vino_module_init);
+module_exit(vino_module_exit);
--- /dev/null
+/*
+ * Driver for the VINO (Video In No Out) system found in SGI Indys.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License version 2 as published by the Free Software Foundation.
+ *
+ * Copyright (C) 1999 Ulf Karlsson <ulfc@bun.falkenberg.se>
+ * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org>
+ */
+
+#ifndef _VINO_H_
+#define _VINO_H_
+
+#define VINO_BASE 0x00080000 /* Vino is in the EISA address space,
+ * but it is not an EISA bus card */
+#define VINO_PAGE_SIZE 4096
+
+struct sgi_vino_channel {
+ u32 _pad_alpha;
+ volatile u32 alpha;
+
+#define VINO_CLIP_X(x) ((x) & 0x3ff) /* bits 0:9 */
+#define VINO_CLIP_ODD(x) (((x) & 0x1ff) << 10) /* bits 10:18 */
+#define VINO_CLIP_EVEN(x) (((x) & 0x1ff) << 19) /* bits 19:27 */
+ u32 _pad_clip_start;
+ volatile u32 clip_start;
+ u32 _pad_clip_end;
+ volatile u32 clip_end;
+
+#define VINO_FRAMERT_FULL 0xfff
+#define VINO_FRAMERT_PAL (1<<0) /* 0=NTSC 1=PAL */
+#define VINO_FRAMERT_RT(x) (((x) & 0xfff) << 1) /* bits 1:12 */
+ u32 _pad_frame_rate;
+ volatile u32 frame_rate;
+
+ u32 _pad_field_counter;
+ volatile u32 field_counter;
+ u32 _pad_line_size;
+ volatile u32 line_size;
+ u32 _pad_line_count;
+ volatile u32 line_count;
+ u32 _pad_page_index;
+ volatile u32 page_index;
+ u32 _pad_next_4_desc;
+ volatile u32 next_4_desc;
+ u32 _pad_start_desc_tbl;
+ volatile u32 start_desc_tbl;
+
+#define VINO_DESC_JUMP (1<<30)
+#define VINO_DESC_STOP (1<<31)
+#define VINO_DESC_VALID (1<<32)
+ u32 _pad_desc_0;
+ volatile u32 desc_0;
+ u32 _pad_desc_1;
+ volatile u32 desc_1;
+ u32 _pad_desc_2;
+ volatile u32 desc_2;
+ u32 _pad_Bdesc_3;
+ volatile u32 desc_3;
+
+ u32 _pad_fifo_thres;
+ volatile u32 fifo_thres;
+ u32 _pad_fifo_read;
+ volatile u32 fifo_read;
+ u32 _pad_fifo_write;
+ volatile u32 fifo_write;
+};
+
+struct sgi_vino {
+#define VINO_CHIP_ID 0xb
+#define VINO_REV_NUM(x) ((x) & 0x0f)
+#define VINO_ID_VALUE(x) (((x) & 0xf0) >> 4)
+ u32 _pad_rev_id;
+ volatile u32 rev_id;
+
+#define VINO_CTRL_LITTLE_ENDIAN (1<<0)
+#define VINO_CTRL_A_EOF_INT (1<<1) /* Field transferred int */
+#define VINO_CTRL_A_FIFO_INT (1<<2) /* FIFO overflow int */
+#define VINO_CTRL_A_EOD_INT (1<<3) /* End of desc table int */
+#define VINO_CTRL_A_INT (VINO_CTRL_A_EOF_INT | \
+ VINO_CTRL_A_FIFO_INT | \
+ VINO_CTRL_A_EOD_INT)
+#define VINO_CTRL_B_EOF_INT (1<<4) /* Field transferred int */
+#define VINO_CTRL_B_FIFO_INT (1<<5) /* FIFO overflow int */
+#define VINO_CTRL_B_EOD_INT (1<<6) /* End of desc table int */
+#define VINO_CTRL_B_INT (VINO_CTRL_B_EOF_INT | \
+ VINO_CTRL_B_FIFO_INT | \
+ VINO_CTRL_B_EOD_INT)
+#define VINO_CTRL_A_DMA_ENBL (1<<7)
+#define VINO_CTRL_A_INTERLEAVE_ENBL (1<<8)
+#define VINO_CTRL_A_SYNC_ENBL (1<<9)
+#define VINO_CTRL_A_SELECT (1<<10) /* 1=D1 0=Philips */
+#define VINO_CTRL_A_RGB (1<<11) /* 1=RGB 0=YUV */
+#define VINO_CTRL_A_LUMA_ONLY (1<<12)
+#define VINO_CTRL_A_DEC_ENBL (1<<13) /* Decimation */
+#define VINO_CTRL_A_DEC_SCALE_MASK 0x1c000 /* bits 14:17 */
+#define VINO_CTRL_A_DEC_SCALE_SHIFT (14)
+#define VINO_CTRL_A_DEC_HOR_ONLY (1<<17) /* Horizontal only */
+#define VINO_CTRL_A_DITHER (1<<18) /* 24 -> 8 bit dither */
+#define VINO_CTRL_B_DMA_ENBL (1<<19)
+#define VINO_CTRL_B_INTERLEAVE_ENBL (1<<20)
+#define VINO_CTRL_B_SYNC_ENBL (1<<21)
+#define VINO_CTRL_B_SELECT (1<<22) /* 1=D1 0=Philips */
+#define VINO_CTRL_B_RGB (1<<23) /* 1=RGB 0=YUV */
+#define VINO_CTRL_B_LUMA_ONLY (1<<24)
+#define VINO_CTRL_B_DEC_ENBL (1<<25) /* Decimation */
+#define VINO_CTRL_B_DEC_SCALE_MASK 0x1c000000 /* bits 26:28 */
+#define VINO_CTRL_B_DEC_SCALE_SHIFT (26)
+#define VINO_CTRL_B_DEC_HOR_ONLY (1<<29) /* Decimation horizontal only */
+#define VINO_CTRL_B_DITHER (1<<30) /* ChanB 24 -> 8 bit dither */
+ u32 _pad_control;
+ volatile u32 control;
+
+#define VINO_INTSTAT_A_EOF (1<<0) /* Field transferred int */
+#define VINO_INTSTAT_A_FIFO (1<<1) /* FIFO overflow int */
+#define VINO_INTSTAT_A_EOD (1<<2) /* End of desc table int */
+#define VINO_INTSTAT_A (VINO_INTSTAT_A_EOF | \
+ VINO_INTSTAT_A_FIFO | \
+ VINO_INTSTAT_A_EOD)
+#define VINO_INTSTAT_B_EOF (1<<3) /* Field transferred int */
+#define VINO_INTSTAT_B_FIFO (1<<4) /* FIFO overflow int */
+#define VINO_INTSTAT_B_EOD (1<<5) /* End of desc table int */
+#define VINO_INTSTAT_B (VINO_INTSTAT_B_EOF | \
+ VINO_INTSTAT_B_FIFO | \
+ VINO_INTSTAT_B_EOD)
+ u32 _pad_intr_status;
+ volatile u32 intr_status;
+
+ u32 _pad_i2c_control;
+ volatile u32 i2c_control;
+ u32 _pad_i2c_data;
+ volatile u32 i2c_data;
+
+ struct sgi_vino_channel a;
+ struct sgi_vino_channel b;
+};
+
+#endif
projects / openwrt / staging / blogic.git / commitdiff