--- /dev/null
+/*
+ * Driver for Xceive XC4000 "QAM/8VSB single chip tuner"
+ *
+ * Copyright (c) 2007 Xceive Corporation
+ * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
+ * Copyright (c) 2009 Devin Heitmueller <dheitmueller@kernellabs.com>
+ * Copyright (c) 2009 Davide Ferri <d.ferri@zero11.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/videodev2.h>
+#include <linux/delay.h>
+#include <linux/dvb/frontend.h>
+#include <linux/i2c.h>
+
+#include "dvb_frontend.h"
+
+#include "xc4000.h"
+#include "tuner-i2c.h"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
+
+static int no_poweroff;
+module_param(no_poweroff, int, 0644);
+MODULE_PARM_DESC(no_poweroff, "0 (default) powers device off when not used.\n"
+ "\t\t1 keep device energized and with tuner ready all the times.\n"
+ "\t\tFaster, but consumes more power and keeps the device hotter");
+
+static DEFINE_MUTEX(xc4000_list_mutex);
+static LIST_HEAD(hybrid_tuner_instance_list);
+
+#define dprintk(level, fmt, arg...) if (debug >= level) \
+ printk(KERN_INFO "%s: " fmt, "xc4000", ## arg)
+
+#define XC4000_DEFAULT_FIRMWARE "dvb-fe-xc4000-1.4.26.fw"
+#define XC4000_DEFAULT_FIRMWARE_SIZE 8236
+
+struct xc4000_priv {
+ struct tuner_i2c_props i2c_props;
+ struct list_head hybrid_tuner_instance_list;
+
+ u32 if_khz;
+ u32 freq_hz;
+ u32 bandwidth;
+ u8 video_standard;
+ u8 rf_mode;
+};
+
+/* Misc Defines */
+#define MAX_TV_STANDARD 23
+#define XC_MAX_I2C_WRITE_LENGTH 64
+
+/* Signal Types */
+#define XC_RF_MODE_AIR 0
+#define XC_RF_MODE_CABLE 1
+
+/* Result codes */
+#define XC_RESULT_SUCCESS 0
+#define XC_RESULT_RESET_FAILURE 1
+#define XC_RESULT_I2C_WRITE_FAILURE 2
+#define XC_RESULT_I2C_READ_FAILURE 3
+#define XC_RESULT_OUT_OF_RANGE 5
+
+/* Product id */
+#define XC_PRODUCT_ID_FW_NOT_LOADED 0x2000
+#define XC_PRODUCT_ID_FW_LOADED 0x0FA0 /* WAS: 0x1388*/
+
+/* Registers */
+#define XREG_INIT 0x00
+#define XREG_VIDEO_MODE 0x01
+#define XREG_AUDIO_MODE 0x02
+#define XREG_RF_FREQ 0x03
+#define XREG_D_CODE 0x04
+#define XREG_IF_OUT 0x05 /* ?? */
+#define XREG_SEEK_MODE 0x07 /* WAS: 0x06 */
+#define XREG_POWER_DOWN 0x08 /* WAS: 0x0A Obsolete */
+#define XREG_SIGNALSOURCE 0x0A /* WAS: 0x0D 0=Air, 1=Cable */
+//#define XREG_SMOOTHEDCVBS 0x0E
+//#define XREG_XTALFREQ 0x0F
+//#define XREG_FINERFREQ 0x10
+//#define XREG_DDIMODE 0x11
+
+#define XREG_ADC_ENV 0x00
+#define XREG_QUALITY 0x01
+#define XREG_FRAME_LINES 0x02
+#define XREG_HSYNC_FREQ 0x03
+#define XREG_LOCK 0x04
+#define XREG_FREQ_ERROR 0x05
+#define XREG_SNR 0x06
+#define XREG_VERSION 0x07
+#define XREG_PRODUCT_ID 0x08
+//#define XREG_BUSY 0x09
+//#define XREG_BUILD 0x0D
+
+/*
+ Basic firmware description. This will remain with
+ the driver for documentation purposes.
+
+ This represents an I2C firmware file encoded as a
+ string of unsigned char. Format is as follows:
+
+ char[0 ]=len0_MSB -> len = len_MSB * 256 + len_LSB
+ char[1 ]=len0_LSB -> length of first write transaction
+ char[2 ]=data0 -> first byte to be sent
+ char[3 ]=data1
+ char[4 ]=data2
+ char[ ]=...
+ char[M ]=dataN -> last byte to be sent
+ char[M+1]=len1_MSB -> len = len_MSB * 256 + len_LSB
+ char[M+2]=len1_LSB -> length of second write transaction
+ char[M+3]=data0
+ char[M+4]=data1
+ ...
+ etc.
+
+ The [len] value should be interpreted as follows:
+
+ len= len_MSB _ len_LSB
+ len=1111_1111_1111_1111 : End of I2C_SEQUENCE
+ len=0000_0000_0000_0000 : Reset command: Do hardware reset
+ len=0NNN_NNNN_NNNN_NNNN : Normal transaction: number of bytes = {1:32767)
+ len=1WWW_WWWW_WWWW_WWWW : Wait command: wait for {1:32767} ms
+
+ For the RESET and WAIT commands, the two following bytes will contain
+ immediately the length of the following transaction.
+
+*/
+struct XC_TV_STANDARD {
+ char *Name;
+ u16 AudioMode;
+ u16 VideoMode;
+};
+
+/* Tuner standards */
+#define MN_NTSC_PAL_BTSC 0
+#define MN_NTSC_PAL_A2 1
+#define MN_NTSC_PAL_EIAJ 2
+#define MN_NTSC_PAL_Mono 3
+#define BG_PAL_A2 4
+#define BG_PAL_NICAM 5
+#define BG_PAL_MONO 6
+#define I_PAL_NICAM 7
+#define I_PAL_NICAM_MONO 8
+#define DK_PAL_A2 9
+#define DK_PAL_NICAM 10
+#define DK_PAL_MONO 11
+#define DK_SECAM_A2DK1 12
+#define DK_SECAM_A2LDK3 13
+#define DK_SECAM_A2MONO 14
+#define L_SECAM_NICAM 15
+#define LC_SECAM_NICAM 16
+#define DTV6 17
+#define DTV8 18
+#define DTV7_8 19
+#define DTV7 20
+#define FM_Radio_INPUT2 21
+#define FM_Radio_INPUT1 22
+
+/* WAS :
+static struct XC_TV_STANDARD XC4000_Standard[MAX_TV_STANDARD] = {
+ {"M/N-NTSC/PAL-BTSC", 0x0400, 0x8020},
+ {"M/N-NTSC/PAL-A2", 0x0600, 0x8020},
+ {"M/N-NTSC/PAL-EIAJ", 0x0440, 0x8020},
+ {"M/N-NTSC/PAL-Mono", 0x0478, 0x8020},
+ {"B/G-PAL-A2", 0x0A00, 0x8049},
+ {"B/G-PAL-NICAM", 0x0C04, 0x8049},
+ {"B/G-PAL-MONO", 0x0878, 0x8059},
+ {"I-PAL-NICAM", 0x1080, 0x8009},
+ {"I-PAL-NICAM-MONO", 0x0E78, 0x8009},
+ {"D/K-PAL-A2", 0x1600, 0x8009},
+ {"D/K-PAL-NICAM", 0x0E80, 0x8009},
+ {"D/K-PAL-MONO", 0x1478, 0x8009},
+ {"D/K-SECAM-A2 DK1", 0x1200, 0x8009},
+ {"D/K-SECAM-A2 L/DK3", 0x0E00, 0x8009},
+ {"D/K-SECAM-A2 MONO", 0x1478, 0x8009},
+ {"L-SECAM-NICAM", 0x8E82, 0x0009},
+ {"L'-SECAM-NICAM", 0x8E82, 0x4009},
+ {"DTV6", 0x00C0, 0x8002},
+ {"DTV8", 0x00C0, 0x800B},
+ {"DTV7/8", 0x00C0, 0x801B},
+ {"DTV7", 0x00C0, 0x8007},
+ {"FM Radio-INPUT2", 0x9802, 0x9002},
+ {"FM Radio-INPUT1", 0x0208, 0x9002}
+};*/
+
+static struct XC_TV_STANDARD XC4000_Standard[MAX_TV_STANDARD] = {
+ {"M/N-NTSC/PAL-BTSC", 0x0000, 0x8020},
+ {"M/N-NTSC/PAL-A2", 0x0000, 0x8020},
+ {"M/N-NTSC/PAL-EIAJ", 0x0040, 0x8020},
+ {"M/N-NTSC/PAL-Mono", 0x0078, 0x8020},
+ {"B/G-PAL-A2", 0x0000, 0x8059},
+ {"B/G-PAL-NICAM", 0x0004, 0x8059},
+ {"B/G-PAL-MONO", 0x0078, 0x8059},
+ {"I-PAL-NICAM", 0x0080, 0x8049},
+ {"I-PAL-NICAM-MONO", 0x0078, 0x8049},
+ {"D/K-PAL-A2", 0x0000, 0x8049},
+ {"D/K-PAL-NICAM", 0x0080, 0x8049},
+ {"D/K-PAL-MONO", 0x0078, 0x8049},
+ {"D/K-SECAM-A2 DK1", 0x0000, 0x8049},
+ {"D/K-SECAM-A2 L/DK3", 0x0000, 0x8049},
+ {"D/K-SECAM-A2 MONO", 0x0078, 0x8049},
+ {"L-SECAM-NICAM", 0x8080, 0x0009},
+ {"L'-SECAM-NICAM", 0x8080, 0x4009},
+ {"DTV6", 0x00C0, 0x8002},
+ {"DTV8", 0x00C0, 0x800B},
+ {"DTV7/8", 0x00C0, 0x801B},
+ {"DTV7", 0x00C0, 0x8007},
+ {"FM Radio-INPUT2", 0x0008, 0x9800},
+ {"FM Radio-INPUT1", 0x0008, 0x9000}
+};
+
+static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe);
+static int xc4000_is_firmware_loaded(struct dvb_frontend *fe);
+static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val);
+static int xc4000_TunerReset(struct dvb_frontend *fe);
+
+static int xc_send_i2c_data(struct xc4000_priv *priv, u8 *buf, int len)
+{
+ struct i2c_msg msg = { .addr = priv->i2c_props.addr,
+ .flags = 0, .buf = buf, .len = len };
+
+ if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) {
+ printk(KERN_ERR "xc4000: I2C write failed (len=%i)\n", len);
+ return XC_RESULT_I2C_WRITE_FAILURE;
+ }
+ return XC_RESULT_SUCCESS;
+}
+
+/* This routine is never used because the only time we read data from the
+ i2c bus is when we read registers, and we want that to be an atomic i2c
+ transaction in case we are on a multi-master bus */
+static int xc_read_i2c_data(struct xc4000_priv *priv, u8 *buf, int len)
+{
+ struct i2c_msg msg = { .addr = priv->i2c_props.addr,
+ .flags = I2C_M_RD, .buf = buf, .len = len };
+
+ if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) {
+ printk(KERN_ERR "xc4000 I2C read failed (len=%i)\n", len);
+ return -EREMOTEIO;
+ }
+ return 0;
+}
+
+static void xc_wait(int wait_ms)
+{
+ msleep(wait_ms);
+}
+
+static int xc4000_TunerReset(struct dvb_frontend *fe)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ int ret;
+
+ dprintk(1, "%s()\n", __func__);
+
+ if (fe->callback) {
+ ret = fe->callback(((fe->dvb) && (fe->dvb->priv)) ?
+ fe->dvb->priv :
+ priv->i2c_props.adap->algo_data,
+ DVB_FRONTEND_COMPONENT_TUNER,
+ XC4000_TUNER_RESET, 0);
+ if (ret) {
+ printk(KERN_ERR "xc4000: reset failed\n");
+ return XC_RESULT_RESET_FAILURE;
+ }
+ } else {
+ printk(KERN_ERR "xc4000: no tuner reset callback function, fatal\n");
+ return XC_RESULT_RESET_FAILURE;
+ }
+ return XC_RESULT_SUCCESS;
+}
+
+static int xc_write_reg(struct xc4000_priv *priv, u16 regAddr, u16 i2cData)
+{
+ u8 buf[4];
+// int WatchDogTimer = 100;
+ int result;
+
+ buf[0] = (regAddr >> 8) & 0xFF;
+ buf[1] = regAddr & 0xFF;
+ buf[2] = (i2cData >> 8) & 0xFF;
+ buf[3] = i2cData & 0xFF;
+ result = xc_send_i2c_data(priv, buf, 4);
+//WAS THERE
+// if (result == XC_RESULT_SUCCESS) {
+// /* wait for busy flag to clear */
+// while ((WatchDogTimer > 0) && (result == XC_RESULT_SUCCESS)) {
+// buf[0] = 0;
+// buf[1] = XREG_BUSY;
+//
+// result = xc_send_i2c_data(priv, buf, 2);
+// if (result == XC_RESULT_SUCCESS) {
+// result = xc_read_i2c_data(priv, buf, 2);
+// if (result == XC_RESULT_SUCCESS) {
+// if ((buf[0] == 0) && (buf[1] == 0)) {
+// /* busy flag cleared */
+// break;
+// } else {
+// xc_wait(5); /* wait 5 ms */
+// WatchDogTimer--;
+// }
+// }
+// }
+// }
+// }
+// if (WatchDogTimer < 0)
+// result = XC_RESULT_I2C_WRITE_FAILURE;
+
+ return result;
+}
+
+static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+
+ int i, nbytes_to_send, result;
+ unsigned int len, pos, index;
+ u8 buf[XC_MAX_I2C_WRITE_LENGTH];
+
+ index = 0;
+ while ((i2c_sequence[index] != 0xFF) ||
+ (i2c_sequence[index + 1] != 0xFF)) {
+ len = i2c_sequence[index] * 256 + i2c_sequence[index+1];
+ if (len == 0x0000) {
+ /* RESET command */
+ result = xc4000_TunerReset(fe);
+ index += 2;
+ if (result != XC_RESULT_SUCCESS)
+ return result;
+ } else if (len & 0x8000) {
+ /* WAIT command */
+ xc_wait(len & 0x7FFF);
+ index += 2;
+ } else {
+ /* Send i2c data whilst ensuring individual transactions
+ * do not exceed XC_MAX_I2C_WRITE_LENGTH bytes.
+ */
+ index += 2;
+ buf[0] = i2c_sequence[index];
+ buf[1] = i2c_sequence[index + 1];
+ pos = 2;
+ while (pos < len) {
+ if ((len - pos) > XC_MAX_I2C_WRITE_LENGTH - 2)
+ nbytes_to_send =
+ XC_MAX_I2C_WRITE_LENGTH;
+ else
+ nbytes_to_send = (len - pos + 2);
+ for (i = 2; i < nbytes_to_send; i++) {
+ buf[i] = i2c_sequence[index + pos +
+ i - 2];
+ }
+ result = xc_send_i2c_data(priv, buf,
+ nbytes_to_send);
+
+ if (result != XC_RESULT_SUCCESS)
+ return result;
+
+ pos += nbytes_to_send - 2;
+ }
+ index += len;
+ }
+ }
+ return XC_RESULT_SUCCESS;
+}
+
+static int xc_initialize(struct xc4000_priv *priv)
+{
+ dprintk(1, "%s()\n", __func__);
+ return xc_write_reg(priv, XREG_INIT, 0);
+}
+
+static int xc_SetTVStandard(struct xc4000_priv *priv,
+ u16 VideoMode, u16 AudioMode)
+{
+ int ret;
+ dprintk(1, "%s(0x%04x,0x%04x)\n", __func__, VideoMode, AudioMode);
+ dprintk(1, "%s() Standard = %s\n",
+ __func__,
+ XC4000_Standard[priv->video_standard].Name);
+
+ ret = xc_write_reg(priv, XREG_VIDEO_MODE, VideoMode);
+ if (ret == XC_RESULT_SUCCESS)
+ ret = xc_write_reg(priv, XREG_AUDIO_MODE, AudioMode);
+
+ return ret;
+}
+
+static int xc_SetSignalSource(struct xc4000_priv *priv, u16 rf_mode)
+{
+ dprintk(1, "%s(%d) Source = %s\n", __func__, rf_mode,
+ rf_mode == XC_RF_MODE_AIR ? "ANTENNA" : "CABLE");
+
+ if ((rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE)) {
+ rf_mode = XC_RF_MODE_CABLE;
+ printk(KERN_ERR
+ "%s(), Invalid mode, defaulting to CABLE",
+ __func__);
+ }
+ return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode);
+}
+
+static const struct dvb_tuner_ops xc4000_tuner_ops;
+
+static int xc_set_RF_frequency(struct xc4000_priv *priv, u32 freq_hz)
+{
+ u16 freq_code;
+
+ dprintk(1, "%s(%u)\n", __func__, freq_hz);
+
+ if ((freq_hz > xc4000_tuner_ops.info.frequency_max) ||
+ (freq_hz < xc4000_tuner_ops.info.frequency_min))
+ return XC_RESULT_OUT_OF_RANGE;
+
+ freq_code = (u16)(freq_hz / 15625);
+
+ /* WAS: Starting in firmware version 1.1.44, Xceive recommends using the
+ FINERFREQ for all normal tuning (the doc indicates reg 0x03 should
+ only be used for fast scanning for channel lock) */
+ return xc_write_reg(priv, XREG_RF_FREQ, freq_code); /* WAS: XREG_FINERFREQ */
+}
+
+
+static int xc_set_IF_frequency(struct xc4000_priv *priv, u32 freq_khz)
+{
+ u32 freq_code = (freq_khz * 1024)/1000;
+ dprintk(1, "%s(freq_khz = %d) freq_code = 0x%x\n",
+ __func__, freq_khz, freq_code);
+
+ return xc_write_reg(priv, XREG_IF_OUT, freq_code);
+}
+
+
+static int xc_get_ADC_Envelope(struct xc4000_priv *priv, u16 *adc_envelope)
+{
+ return xc4000_readreg(priv, XREG_ADC_ENV, adc_envelope);
+}
+
+static int xc_get_frequency_error(struct xc4000_priv *priv, u32 *freq_error_hz)
+{
+ int result;
+ u16 regData;
+ u32 tmp;
+
+ result = xc4000_readreg(priv, XREG_FREQ_ERROR, ®Data);
+ if (result != XC_RESULT_SUCCESS)
+ return result;
+
+ tmp = (u32)regData;
+ (*freq_error_hz) = (tmp * 15625) / 1000;
+ return result;
+}
+
+static int xc_get_lock_status(struct xc4000_priv *priv, u16 *lock_status)
+{
+ return xc4000_readreg(priv, XREG_LOCK, lock_status);
+}
+
+static int xc_get_version(struct xc4000_priv *priv,
+ u8 *hw_majorversion, u8 *hw_minorversion,
+ u8 *fw_majorversion, u8 *fw_minorversion)
+{
+ u16 data;
+ int result;
+
+ result = xc4000_readreg(priv, XREG_VERSION, &data);
+ if (result != XC_RESULT_SUCCESS)
+ return result;
+
+ (*hw_majorversion) = (data >> 12) & 0x0F;
+ (*hw_minorversion) = (data >> 8) & 0x0F;
+ (*fw_majorversion) = (data >> 4) & 0x0F;
+ (*fw_minorversion) = data & 0x0F;
+
+ return 0;
+}
+
+/* WAS THERE
+static int xc_get_buildversion(struct xc4000_priv *priv, u16 *buildrev)
+{
+ return xc4000_readreg(priv, XREG_BUILD, buildrev);
+}*/
+
+static int xc_get_hsync_freq(struct xc4000_priv *priv, u32 *hsync_freq_hz)
+{
+ u16 regData;
+ int result;
+
+ result = xc4000_readreg(priv, XREG_HSYNC_FREQ, ®Data);
+ if (result != XC_RESULT_SUCCESS)
+ return result;
+
+ (*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100;
+ return result;
+}
+
+static int xc_get_frame_lines(struct xc4000_priv *priv, u16 *frame_lines)
+{
+ return xc4000_readreg(priv, XREG_FRAME_LINES, frame_lines);
+}
+
+static int xc_get_quality(struct xc4000_priv *priv, u16 *quality)
+{
+ return xc4000_readreg(priv, XREG_QUALITY, quality);
+}
+
+static u16 WaitForLock(struct xc4000_priv *priv)
+{
+ u16 lockState = 0;
+ int watchDogCount = 40;
+
+ while ((lockState == 0) && (watchDogCount > 0)) {
+ xc_get_lock_status(priv, &lockState);
+ if (lockState != 1) {
+ xc_wait(5);
+ watchDogCount--;
+ }
+ }
+ return lockState;
+}
+
+#define XC_TUNE_ANALOG 0
+#define XC_TUNE_DIGITAL 1
+static int xc_tune_channel(struct xc4000_priv *priv, u32 freq_hz, int mode)
+{
+ int found = 0;
+
+ dprintk(1, "%s(%u)\n", __func__, freq_hz);
+
+ if (xc_set_RF_frequency(priv, freq_hz) != XC_RESULT_SUCCESS)
+ return 0;
+
+ if (mode == XC_TUNE_ANALOG) {
+ if (WaitForLock(priv) == 1)
+ found = 1;
+ }
+
+ return found;
+}
+
+static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val)
+{
+ u8 buf[2] = { reg >> 8, reg & 0xff };
+ u8 bval[2] = { 0, 0 };
+ struct i2c_msg msg[2] = {
+ { .addr = priv->i2c_props.addr,
+ .flags = 0, .buf = &buf[0], .len = 2 },
+ { .addr = priv->i2c_props.addr,
+ .flags = I2C_M_RD, .buf = &bval[0], .len = 2 },
+ };
+
+ if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) {
+ printk(KERN_WARNING "xc4000: I2C read failed\n");
+ return -EREMOTEIO;
+ }
+
+ *val = (bval[0] << 8) | bval[1];
+ return XC_RESULT_SUCCESS;
+}
+
+static int xc4000_fwupload(struct dvb_frontend *fe)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ const struct firmware *fw;
+ int ret;
+
+ /* request the firmware, this will block and timeout */
+ printk(KERN_INFO "xc4000: waiting for firmware upload (%s)...\n",
+ XC4000_DEFAULT_FIRMWARE);
+
+ ret = request_firmware(&fw, XC4000_DEFAULT_FIRMWARE,
+ priv->i2c_props.adap->dev.parent);
+ if (ret) {
+ printk(KERN_ERR "xc4000: Upload failed. (file not found?)\n");
+ ret = XC_RESULT_RESET_FAILURE;
+ goto out;
+ } else {
+ printk(KERN_DEBUG "xc4000: firmware read %Zu bytes.\n",
+ fw->size);
+ ret = XC_RESULT_SUCCESS;
+ }
+
+ if (fw->size != XC4000_DEFAULT_FIRMWARE_SIZE) {
+ printk(KERN_ERR "xc4000: firmware incorrect size\n");
+ ret = XC_RESULT_RESET_FAILURE;
+ } else {
+ printk(KERN_INFO "xc4000: firmware uploading...\n");
+ ret = xc_load_i2c_sequence(fe, fw->data);
+ printk(KERN_INFO "xc4000: firmware upload complete...\n");
+ }
+
+out:
+ release_firmware(fw);
+ return ret;
+}
+
+static void xc_debug_dump(struct xc4000_priv *priv)
+{
+ u16 adc_envelope;
+ u32 freq_error_hz = 0;
+ u16 lock_status;
+ u32 hsync_freq_hz = 0;
+ u16 frame_lines;
+ u16 quality;
+ u8 hw_majorversion = 0, hw_minorversion = 0;
+ u8 fw_majorversion = 0, fw_minorversion = 0;
+// u16 fw_buildversion = 0;
+
+ /* Wait for stats to stabilize.
+ * Frame Lines needs two frame times after initial lock
+ * before it is valid.
+ */
+ xc_wait(100);
+
+ xc_get_ADC_Envelope(priv, &adc_envelope);
+ dprintk(1, "*** ADC envelope (0-1023) = %d\n", adc_envelope);
+
+ xc_get_frequency_error(priv, &freq_error_hz);
+ dprintk(1, "*** Frequency error = %d Hz\n", freq_error_hz);
+
+ xc_get_lock_status(priv, &lock_status);
+ dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %d\n",
+ lock_status);
+
+ xc_get_version(priv, &hw_majorversion, &hw_minorversion,
+ &fw_majorversion, &fw_minorversion);
+// WAS:
+// xc_get_buildversion(priv, &fw_buildversion);
+// dprintk(1, "*** HW: V%02x.%02x, FW: V%02x.%02x.%04x\n",
+// hw_majorversion, hw_minorversion,
+// fw_majorversion, fw_minorversion, fw_buildversion);
+// NOW:
+ dprintk(1, "*** HW: V%02x.%02x, FW: V%02x.%02x\n",
+ hw_majorversion, hw_minorversion,
+ fw_majorversion, fw_minorversion);
+
+ xc_get_hsync_freq(priv, &hsync_freq_hz);
+ dprintk(1, "*** Horizontal sync frequency = %d Hz\n", hsync_freq_hz);
+
+ xc_get_frame_lines(priv, &frame_lines);
+ dprintk(1, "*** Frame lines = %d\n", frame_lines);
+
+ xc_get_quality(priv, &quality);
+ dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality);
+}
+
+static int xc4000_set_params(struct dvb_frontend *fe,
+ struct dvb_frontend_parameters *params)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ int ret;
+
+ if (xc4000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS)
+ xc_load_fw_and_init_tuner(fe);
+
+ dprintk(1, "%s() frequency=%d (Hz)\n", __func__, params->frequency);
+
+ if (fe->ops.info.type == FE_ATSC) {
+ dprintk(1, "%s() ATSC\n", __func__);
+ switch (params->u.vsb.modulation) {
+ case VSB_8:
+ case VSB_16:
+ dprintk(1, "%s() VSB modulation\n", __func__);
+ priv->rf_mode = XC_RF_MODE_AIR;
+ priv->freq_hz = params->frequency - 1750000;
+ priv->bandwidth = BANDWIDTH_6_MHZ;
+ priv->video_standard = DTV6;
+ break;
+ case QAM_64:
+ case QAM_256:
+ case QAM_AUTO:
+ dprintk(1, "%s() QAM modulation\n", __func__);
+ priv->rf_mode = XC_RF_MODE_CABLE;
+ priv->freq_hz = params->frequency - 1750000;
+ priv->bandwidth = BANDWIDTH_6_MHZ;
+ priv->video_standard = DTV6;
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else if (fe->ops.info.type == FE_OFDM) {
+ dprintk(1, "%s() OFDM\n", __func__);
+ switch (params->u.ofdm.bandwidth) {
+ case BANDWIDTH_6_MHZ:
+ priv->bandwidth = BANDWIDTH_6_MHZ;
+ priv->video_standard = DTV6;
+ priv->freq_hz = params->frequency - 1750000;
+ break;
+ case BANDWIDTH_7_MHZ:
+ printk(KERN_ERR "xc4000 bandwidth 7MHz not supported\n");
+ return -EINVAL;
+ case BANDWIDTH_8_MHZ:
+ priv->bandwidth = BANDWIDTH_8_MHZ;
+ priv->video_standard = DTV8;
+ priv->freq_hz = params->frequency - 2750000;
+ break;
+ default:
+ printk(KERN_ERR "xc4000 bandwidth not set!\n");
+ return -EINVAL;
+ }
+ priv->rf_mode = XC_RF_MODE_AIR;
+ } else {
+ printk(KERN_ERR "xc4000 modulation type not supported!\n");
+ return -EINVAL;
+ }
+
+ dprintk(1, "%s() frequency=%d (compensated)\n",
+ __func__, priv->freq_hz);
+
+ ret = xc_SetSignalSource(priv, priv->rf_mode);
+ if (ret != XC_RESULT_SUCCESS) {
+ printk(KERN_ERR
+ "xc4000: xc_SetSignalSource(%d) failed\n",
+ priv->rf_mode);
+ return -EREMOTEIO;
+ }
+
+ ret = xc_SetTVStandard(priv,
+ XC4000_Standard[priv->video_standard].VideoMode,
+ XC4000_Standard[priv->video_standard].AudioMode);
+ if (ret != XC_RESULT_SUCCESS) {
+ printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n");
+ return -EREMOTEIO;
+ }
+
+ ret = xc_set_IF_frequency(priv, priv->if_khz);
+ if (ret != XC_RESULT_SUCCESS) {
+ printk(KERN_ERR "xc4000: xc_Set_IF_frequency(%d) failed\n",
+ priv->if_khz);
+ return -EIO;
+ }
+
+ xc_tune_channel(priv, priv->freq_hz, XC_TUNE_DIGITAL);
+
+ if (debug)
+ xc_debug_dump(priv);
+
+ return 0;
+}
+
+static int xc4000_is_firmware_loaded(struct dvb_frontend *fe)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ int ret;
+ u16 id;
+
+ ret = xc4000_readreg(priv, XREG_PRODUCT_ID, &id);
+ if (ret == XC_RESULT_SUCCESS) {
+ if (id == XC_PRODUCT_ID_FW_NOT_LOADED)
+ ret = XC_RESULT_RESET_FAILURE;
+ else
+ ret = XC_RESULT_SUCCESS;
+ }
+
+ dprintk(1, "%s() returns %s id = 0x%x\n", __func__,
+ ret == XC_RESULT_SUCCESS ? "True" : "False", id);
+ return ret;
+}
+
+static int xc4000_set_analog_params(struct dvb_frontend *fe,
+ struct analog_parameters *params)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ int ret;
+
+ if (xc4000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS)
+ xc_load_fw_and_init_tuner(fe);
+
+ dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n",
+ __func__, params->frequency);
+
+ /* Fix me: it could be air. */
+ priv->rf_mode = params->mode;
+ if (params->mode > XC_RF_MODE_CABLE)
+ priv->rf_mode = XC_RF_MODE_CABLE;
+
+ /* params->frequency is in units of 62.5khz */
+ priv->freq_hz = params->frequency * 62500;
+
+ /* FIX ME: Some video standards may have several possible audio
+ standards. We simply default to one of them here.
+ */
+ if (params->std & V4L2_STD_MN) {
+ /* default to BTSC audio standard */
+ priv->video_standard = MN_NTSC_PAL_BTSC;
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_PAL_BG) {
+ /* default to NICAM audio standard */
+ priv->video_standard = BG_PAL_NICAM;
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_PAL_I) {
+ /* default to NICAM audio standard */
+ priv->video_standard = I_PAL_NICAM;
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_PAL_DK) {
+ /* default to NICAM audio standard */
+ priv->video_standard = DK_PAL_NICAM;
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_SECAM_DK) {
+ /* default to A2 DK1 audio standard */
+ priv->video_standard = DK_SECAM_A2DK1;
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_SECAM_L) {
+ priv->video_standard = L_SECAM_NICAM;
+ goto tune_channel;
+ }
+
+ if (params->std & V4L2_STD_SECAM_LC) {
+ priv->video_standard = LC_SECAM_NICAM;
+ goto tune_channel;
+ }
+
+tune_channel:
+ ret = xc_SetSignalSource(priv, priv->rf_mode);
+ if (ret != XC_RESULT_SUCCESS) {
+ printk(KERN_ERR
+ "xc4000: xc_SetSignalSource(%d) failed\n",
+ priv->rf_mode);
+ return -EREMOTEIO;
+ }
+
+ ret = xc_SetTVStandard(priv,
+ XC4000_Standard[priv->video_standard].VideoMode,
+ XC4000_Standard[priv->video_standard].AudioMode);
+ if (ret != XC_RESULT_SUCCESS) {
+ printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n");
+ return -EREMOTEIO;
+ }
+
+ xc_tune_channel(priv, priv->freq_hz, XC_TUNE_ANALOG);
+
+ if (debug)
+ xc_debug_dump(priv);
+
+ return 0;
+}
+
+static int xc4000_get_frequency(struct dvb_frontend *fe, u32 *freq)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ dprintk(1, "%s()\n", __func__);
+ *freq = priv->freq_hz;
+ return 0;
+}
+
+static int xc4000_get_bandwidth(struct dvb_frontend *fe, u32 *bw)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ dprintk(1, "%s()\n", __func__);
+
+ *bw = priv->bandwidth;
+ return 0;
+}
+
+static int xc4000_get_status(struct dvb_frontend *fe, u32 *status)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ u16 lock_status = 0;
+
+ xc_get_lock_status(priv, &lock_status);
+
+ dprintk(1, "%s() lock_status = 0x%08x\n", __func__, lock_status);
+
+ *status = lock_status;
+
+ return 0;
+}
+
+static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ int ret = 0;
+
+ if (xc4000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS) {
+ ret = xc4000_fwupload(fe);
+ if (ret != XC_RESULT_SUCCESS)
+ return ret;
+ }
+
+ /* Start the tuner self-calibration process */
+ ret |= xc_initialize(priv);
+
+ /* Wait for calibration to complete.
+ * We could continue but XC4000 will clock stretch subsequent
+ * I2C transactions until calibration is complete. This way we
+ * don't have to rely on clock stretching working.
+ */
+ xc_wait(100);
+
+ /* Default to "CABLE" mode */
+ ret |= xc_write_reg(priv, XREG_SIGNALSOURCE, XC_RF_MODE_CABLE);
+
+ return ret;
+}
+
+static int xc4000_sleep(struct dvb_frontend *fe)
+{
+ int ret;
+
+ dprintk(1, "%s()\n", __func__);
+
+ /* Avoid firmware reload on slow devices */
+ if (no_poweroff)
+ return 0;
+
+ /* According to Xceive technical support, the "powerdown" register
+ was removed in newer versions of the firmware. The "supported"
+ way to sleep the tuner is to pull the reset pin low for 10ms */
+ ret = xc4000_TunerReset(fe);
+ if (ret != XC_RESULT_SUCCESS) {
+ printk(KERN_ERR
+ "xc4000: %s() unable to shutdown tuner\n",
+ __func__);
+ return -EREMOTEIO;
+ } else
+ return XC_RESULT_SUCCESS;
+}
+
+static int xc4000_init(struct dvb_frontend *fe)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+ dprintk(1, "%s()\n", __func__);
+
+ if (xc_load_fw_and_init_tuner(fe) != XC_RESULT_SUCCESS) {
+ printk(KERN_ERR "xc4000: Unable to initialise tuner\n");
+ return -EREMOTEIO;
+ }
+
+ if (debug)
+ xc_debug_dump(priv);
+
+ return 0;
+}
+
+static int xc4000_release(struct dvb_frontend *fe)
+{
+ struct xc4000_priv *priv = fe->tuner_priv;
+
+ dprintk(1, "%s()\n", __func__);
+
+ mutex_lock(&xc4000_list_mutex);
+
+ if (priv)
+ hybrid_tuner_release_state(priv);
+
+ mutex_unlock(&xc4000_list_mutex);
+
+ fe->tuner_priv = NULL;
+
+ return 0;
+}
+
+static const struct dvb_tuner_ops xc4000_tuner_ops = {
+ .info = {
+ .name = "Xceive XC4000",
+ .frequency_min = 1000000,
+ .frequency_max = 1023000000,
+ .frequency_step = 50000,
+ },
+
+ .release = xc4000_release,
+ .init = xc4000_init,
+ .sleep = xc4000_sleep,
+
+ .set_params = xc4000_set_params,
+ .set_analog_params = xc4000_set_analog_params,
+ .get_frequency = xc4000_get_frequency,
+ .get_bandwidth = xc4000_get_bandwidth,
+ .get_status = xc4000_get_status
+};
+
+struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c,
+ struct xc4000_config *cfg)
+{
+ struct xc4000_priv *priv = NULL;
+ int instance;
+ u16 id = 0;
+
+ dprintk(1, "%s(%d-%04x)\n", __func__,
+ i2c ? i2c_adapter_id(i2c) : -1,
+ cfg ? cfg->i2c_address : -1);
+
+ mutex_lock(&xc4000_list_mutex);
+
+ instance = hybrid_tuner_request_state(struct xc4000_priv, priv,
+ hybrid_tuner_instance_list,
+ i2c, cfg->i2c_address, "xc4000");
+ switch (instance) {
+ case 0:
+ goto fail;
+ break;
+ case 1:
+ /* new tuner instance */
+ priv->bandwidth = BANDWIDTH_6_MHZ;
+ fe->tuner_priv = priv;
+ break;
+ default:
+ /* existing tuner instance */
+ fe->tuner_priv = priv;
+ break;
+ }
+
+ if (priv->if_khz == 0) {
+ /* If the IF hasn't been set yet, use the value provided by
+ the caller (occurs in hybrid devices where the analog
+ call to xc4000_attach occurs before the digital side) */
+ priv->if_khz = cfg->if_khz;
+ }
+
+ /* Check if firmware has been loaded. It is possible that another
+ instance of the driver has loaded the firmware.
+ */
+
+ if (xc4000_readreg(priv, XREG_PRODUCT_ID, &id) != XC_RESULT_SUCCESS)
+ goto fail;
+
+ switch (id) {
+ case XC_PRODUCT_ID_FW_LOADED:
+ printk(KERN_INFO
+ "xc4000: Successfully identified at address 0x%02x\n",
+ cfg->i2c_address);
+ printk(KERN_INFO
+ "xc4000: Firmware has been loaded previously\n");
+ break;
+ case XC_PRODUCT_ID_FW_NOT_LOADED:
+ printk(KERN_INFO
+ "xc4000: Successfully identified at address 0x%02x\n",
+ cfg->i2c_address);
+ printk(KERN_INFO
+ "xc4000: Firmware has not been loaded previously\n");
+ break;
+ default:
+ printk(KERN_ERR
+ "xc4000: Device not found at addr 0x%02x (0x%x)\n",
+ cfg->i2c_address, id);
+ goto fail;
+ }
+
+ mutex_unlock(&xc4000_list_mutex);
+
+ memcpy(&fe->ops.tuner_ops, &xc4000_tuner_ops,
+ sizeof(struct dvb_tuner_ops));
+
+ return fe;
+fail:
+ mutex_unlock(&xc4000_list_mutex);
+
+ xc4000_release(fe);
+ return NULL;
+}
+EXPORT_SYMBOL(xc4000_attach);
+
+MODULE_AUTHOR("Steven Toth, Davide Ferri");
+MODULE_DESCRIPTION("Xceive xc4000 silicon tuner driver");
+MODULE_LICENSE("GPL");
projects / openwrt / staging / blogic.git / commitdiff