diff options
Diffstat (limited to 'drivers/media/dvb/frontends/xc5000.c')
| -rw-r--r-- | drivers/media/dvb/frontends/xc5000.c | 964 |
1 files changed, 0 insertions, 964 deletions
diff --git a/drivers/media/dvb/frontends/xc5000.c b/drivers/media/dvb/frontends/xc5000.c deleted file mode 100644 index 43d35bd..0000000 --- a/drivers/media/dvb/frontends/xc5000.c +++ /dev/null @@ -1,964 +0,0 @@ -/* - * Driver for Xceive XC5000 "QAM/8VSB single chip tuner" - * - * Copyright (c) 2007 Xceive Corporation - * Copyright (c) 2007 Steven Toth <stoth@hauppauge.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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 "xc5000.h" -#include "xc5000_priv.h" - -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); - -#define dprintk(level,fmt, arg...) if (debug >= level) \ - printk(KERN_INFO "%s: " fmt, "xc5000", ## arg) - -#define XC5000_DEFAULT_FIRMWARE "dvb-fe-xc5000-1.1.fw" -#define XC5000_DEFAULT_FIRMWARE_SIZE 12332 - -/* 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 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 -#define XREG_POWER_DOWN 0x0A -#define XREG_SIGNALSOURCE 0x0D /* 0=Air, 1=Cable */ -#define XREG_SMOOTHEDCVBS 0x0E -#define XREG_XTALFREQ 0x0F -#define XREG_FINERFFREQ 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 - -/* - 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. - -*/ -typedef struct { - char *Name; - u16 AudioMode; - u16 VideoMode; -} XC_TV_STANDARD; - -/* 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 - -static XC_TV_STANDARD XC5000_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 int xc5000_writeregs(struct xc5000_priv *priv, u8 *buf, u8 len); -static int xc5000_readregs(struct xc5000_priv *priv, u8 *buf, u8 len); -static void xc5000_TunerReset(struct dvb_frontend *fe); - -static int xc_send_i2c_data(struct xc5000_priv *priv, u8 *buf, int len) -{ - return xc5000_writeregs(priv, buf, len) - ? XC_RESULT_I2C_WRITE_FAILURE : XC_RESULT_SUCCESS; -} - -static int xc_read_i2c_data(struct xc5000_priv *priv, u8 *buf, int len) -{ - return xc5000_readregs(priv, buf, len) - ? XC_RESULT_I2C_READ_FAILURE : XC_RESULT_SUCCESS; -} - -static int xc_reset(struct dvb_frontend *fe) -{ - xc5000_TunerReset(fe); - return XC_RESULT_SUCCESS; -} - -static void xc_wait(int wait_ms) -{ - msleep(wait_ms); -} - -static void xc5000_TunerReset(struct dvb_frontend *fe) -{ - struct xc5000_priv *priv = fe->tuner_priv; - int ret; - - dprintk(1, "%s()\n", __func__); - - if (priv->cfg->tuner_callback) { - ret = priv->cfg->tuner_callback(priv->cfg->priv, - XC5000_TUNER_RESET, 0); - if (ret) - printk(KERN_ERR "xc5000: reset failed\n"); - } else - printk(KERN_ERR "xc5000: no tuner reset callback function, fatal\n"); -} - -static int xc_write_reg(struct xc5000_priv *priv, u16 regAddr, u16 i2cData) -{ - u8 buf[4]; - int WatchDogTimer = 5; - 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); - 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(100); /* wait 5 ms */ - WatchDogTimer--; - } - } - } - } - } - if (WatchDogTimer < 0) - result = XC_RESULT_I2C_WRITE_FAILURE; - - return result; -} - -static int xc_read_reg(struct xc5000_priv *priv, u16 regAddr, u16 *i2cData) -{ - u8 buf[2]; - int result; - - buf[0] = (regAddr >> 8) & 0xFF; - buf[1] = regAddr & 0xFF; - result = xc_send_i2c_data(priv, buf, 2); - if (result != XC_RESULT_SUCCESS) - return result; - - result = xc_read_i2c_data(priv, buf, 2); - if (result != XC_RESULT_SUCCESS) - return result; - - *i2cData = buf[0] * 256 + buf[1]; - return result; -} - -static int xc_load_i2c_sequence(struct dvb_frontend *fe, u8 i2c_sequence[]) -{ - struct xc5000_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 = xc_reset(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 xc5000_priv *priv) -{ - dprintk(1, "%s()\n", __func__); - return xc_write_reg(priv, XREG_INIT, 0); -} - -static int xc_SetTVStandard(struct xc5000_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__, - XC5000_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_shutdown(struct xc5000_priv *priv) -{ - return 0; - /* Fixme: cannot bring tuner back alive once shutdown - * without reloading the driver modules. - * return xc_write_reg(priv, XREG_POWER_DOWN, 0); - */ -} - -static int xc_SetSignalSource(struct xc5000_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 xc5000_tuner_ops; - -static int xc_set_RF_frequency(struct xc5000_priv *priv, u32 freq_hz) -{ - u16 freq_code; - - dprintk(1, "%s(%u)\n", __func__, freq_hz); - - if ((freq_hz > xc5000_tuner_ops.info.frequency_max) || - (freq_hz < xc5000_tuner_ops.info.frequency_min)) - return XC_RESULT_OUT_OF_RANGE; - - freq_code = (u16)(freq_hz / 15625); - - return xc_write_reg(priv, XREG_RF_FREQ, freq_code); -} - - -static int xc_set_IF_frequency(struct xc5000_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 xc5000_priv *priv, u16 *adc_envelope) -{ - return xc_read_reg(priv, XREG_ADC_ENV, adc_envelope); -} - -static int xc_get_frequency_error(struct xc5000_priv *priv, u32 *freq_error_hz) -{ - int result; - u16 regData; - u32 tmp; - - result = xc_read_reg(priv, XREG_FREQ_ERROR, ®Data); - if (result) - return result; - - tmp = (u32)regData; - (*freq_error_hz) = (tmp * 15625) / 1000; - return result; -} - -static int xc_get_lock_status(struct xc5000_priv *priv, u16 *lock_status) -{ - return xc_read_reg(priv, XREG_LOCK, lock_status); -} - -static int xc_get_version(struct xc5000_priv *priv, - u8 *hw_majorversion, u8 *hw_minorversion, - u8 *fw_majorversion, u8 *fw_minorversion) -{ - u16 data; - int result; - - result = xc_read_reg(priv, XREG_VERSION, &data); - if (result) - return result; - - (*hw_majorversion) = (data >> 12) & 0x0F; - (*hw_minorversion) = (data >> 8) & 0x0F; - (*fw_majorversion) = (data >> 4) & 0x0F; - (*fw_minorversion) = data & 0x0F; - - return 0; -} - -static int xc_get_hsync_freq(struct xc5000_priv *priv, u32 *hsync_freq_hz) -{ - u16 regData; - int result; - - result = xc_read_reg(priv, XREG_HSYNC_FREQ, ®Data); - if (result) - return result; - - (*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100; - return result; -} - -static int xc_get_frame_lines(struct xc5000_priv *priv, u16 *frame_lines) -{ - return xc_read_reg(priv, XREG_FRAME_LINES, frame_lines); -} - -static int xc_get_quality(struct xc5000_priv *priv, u16 *quality) -{ - return xc_read_reg(priv, XREG_QUALITY, quality); -} - -static u16 WaitForLock(struct xc5000_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; -} - -static int xc_tune_channel(struct xc5000_priv *priv, u32 freq_hz) -{ - 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 (WaitForLock(priv) == 1) - found = 1; - - return found; -} - -static int xc5000_readreg(struct xc5000_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->cfg->i2c_address, - .flags = 0, .buf = &buf[0], .len = 2 }, - { .addr = priv->cfg->i2c_address, - .flags = I2C_M_RD, .buf = &bval[0], .len = 2 }, - }; - - if (i2c_transfer(priv->i2c, msg, 2) != 2) { - printk(KERN_WARNING "xc5000: I2C read failed\n"); - return -EREMOTEIO; - } - - *val = (bval[0] << 8) | bval[1]; - return 0; -} - -static int xc5000_writeregs(struct xc5000_priv *priv, u8 *buf, u8 len) -{ - struct i2c_msg msg = { .addr = priv->cfg->i2c_address, - .flags = 0, .buf = buf, .len = len }; - - if (i2c_transfer(priv->i2c, &msg, 1) != 1) { - printk(KERN_ERR "xc5000: I2C write failed (len=%i)\n", - (int)len); - return -EREMOTEIO; - } - return 0; -} - -static int xc5000_readregs(struct xc5000_priv *priv, u8 *buf, u8 len) -{ - struct i2c_msg msg = { .addr = priv->cfg->i2c_address, - .flags = I2C_M_RD, .buf = buf, .len = len }; - - if (i2c_transfer(priv->i2c, &msg, 1) != 1) { - printk(KERN_ERR "xc5000 I2C read failed (len=%i)\n",(int)len); - return -EREMOTEIO; - } - return 0; -} - -static int xc5000_fwupload(struct dvb_frontend* fe) -{ - struct xc5000_priv *priv = fe->tuner_priv; - const struct firmware *fw; - int ret; - - /* request the firmware, this will block and timeout */ - printk(KERN_INFO "xc5000: waiting for firmware upload (%s)...\n", - XC5000_DEFAULT_FIRMWARE); - - ret = request_firmware(&fw, XC5000_DEFAULT_FIRMWARE, &priv->i2c->dev); - if (ret) { - printk(KERN_ERR "xc5000: Upload failed. (file not found?)\n"); - ret = XC_RESULT_RESET_FAILURE; - goto out; - } else { - printk(KERN_INFO "xc5000: firmware read %Zu bytes.\n", - fw->size); - ret = XC_RESULT_SUCCESS; - } - - if (fw->size != XC5000_DEFAULT_FIRMWARE_SIZE) { - printk(KERN_ERR "xc5000: firmware incorrect size\n"); - ret = XC_RESULT_RESET_FAILURE; - } else { - printk(KERN_INFO "xc5000: firmware upload\n"); - ret = xc_load_i2c_sequence(fe, fw->data ); - } - -out: - release_firmware(fw); - return ret; -} - -static void xc_debug_dump(struct xc5000_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; - - /* 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); - 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 xc5000_set_params(struct dvb_frontend *fe, - struct dvb_frontend_parameters *params) -{ - struct xc5000_priv *priv = fe->tuner_priv; - int ret; - - dprintk(1, "%s() frequency=%d (Hz)\n", __func__, params->frequency); - - 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; - } - - 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 - "xc5000: xc_SetSignalSource(%d) failed\n", - priv->rf_mode); - return -EREMOTEIO; - } - - ret = xc_SetTVStandard(priv, - XC5000_Standard[priv->video_standard].VideoMode, - XC5000_Standard[priv->video_standard].AudioMode); - if (ret != XC_RESULT_SUCCESS) { - printk(KERN_ERR "xc5000: xc_SetTVStandard failed\n"); - return -EREMOTEIO; - } - - ret = xc_set_IF_frequency(priv, priv->cfg->if_khz); - if (ret != XC_RESULT_SUCCESS) { - printk(KERN_ERR "xc5000: xc_Set_IF_frequency(%d) failed\n", - priv->cfg->if_khz); - return -EIO; - } - - xc_tune_channel(priv, priv->freq_hz); - - if (debug) - xc_debug_dump(priv); - - return 0; -} - -static int xc_load_fw_and_init_tuner(struct dvb_frontend *fe); - -static int xc5000_set_analog_params(struct dvb_frontend *fe, - struct analog_parameters *params) -{ - struct xc5000_priv *priv = fe->tuner_priv; - int ret; - - if(priv->fwloaded == 0) - xc_load_fw_and_init_tuner(fe); - - dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n", - __func__, params->frequency); - - priv->rf_mode = XC_RF_MODE_CABLE; /* Fix me: it could be air. */ - - /* 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 - "xc5000: xc_SetSignalSource(%d) failed\n", - priv->rf_mode); - return -EREMOTEIO; - } - - ret = xc_SetTVStandard(priv, - XC5000_Standard[priv->video_standard].VideoMode, - XC5000_Standard[priv->video_standard].AudioMode); - if (ret != XC_RESULT_SUCCESS) { - printk(KERN_ERR "xc5000: xc_SetTVStandard failed\n"); - return -EREMOTEIO; - } - - xc_tune_channel(priv, priv->freq_hz); - - if (debug) - xc_debug_dump(priv); - - return 0; -} - -static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq) -{ - struct xc5000_priv *priv = fe->tuner_priv; - dprintk(1, "%s()\n", __func__); - *freq = priv->freq_hz; - return 0; -} - -static int xc5000_get_bandwidth(struct dvb_frontend *fe, u32 *bw) -{ - struct xc5000_priv *priv = fe->tuner_priv; - dprintk(1, "%s()\n", __func__); - - *bw = priv->bandwidth; - return 0; -} - -static int xc5000_get_status(struct dvb_frontend *fe, u32 *status) -{ - struct xc5000_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 xc5000_priv *priv = fe->tuner_priv; - int ret = 0; - - if (priv->fwloaded == 0) { - ret = xc5000_fwupload(fe); - if (ret != XC_RESULT_SUCCESS) - return ret; - priv->fwloaded = 1; - } - - /* Start the tuner self-calibration process */ - ret |= xc_initialize(priv); - - /* Wait for calibration to complete. - * We could continue but XC5000 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 xc5000_sleep(struct dvb_frontend *fe) -{ - struct xc5000_priv *priv = fe->tuner_priv; - int ret; - - dprintk(1, "%s()\n", __func__); - - /* On Pinnacle PCTV HD 800i, the tuner cannot be reinitialized - * once shutdown without reloading the driver. Maybe I am not - * doing something right. - * - */ - - ret = xc_shutdown(priv); - if(ret != XC_RESULT_SUCCESS) { - printk(KERN_ERR - "xc5000: %s() unable to shutdown tuner\n", - __func__); - return -EREMOTEIO; - } - else { - /* priv->fwloaded = 0; */ - return XC_RESULT_SUCCESS; - } -} - -static int xc5000_init(struct dvb_frontend *fe) -{ - struct xc5000_priv *priv = fe->tuner_priv; - dprintk(1, "%s()\n", __func__); - - if (xc_load_fw_and_init_tuner(fe) != XC_RESULT_SUCCESS) { - printk(KERN_ERR "xc5000: Unable to initialise tuner\n"); - return -EREMOTEIO; - } - - if (debug) - xc_debug_dump(priv); - - return 0; -} - -static int xc5000_release(struct dvb_frontend *fe) -{ - dprintk(1, "%s()\n", __func__); - kfree(fe->tuner_priv); - fe->tuner_priv = NULL; - return 0; -} - -static const struct dvb_tuner_ops xc5000_tuner_ops = { - .info = { - .name = "Xceive XC5000", - .frequency_min = 1000000, - .frequency_max = 1023000000, - .frequency_step = 50000, - }, - - .release = xc5000_release, - .init = xc5000_init, - .sleep = xc5000_sleep, - - .set_params = xc5000_set_params, - .set_analog_params = xc5000_set_analog_params, - .get_frequency = xc5000_get_frequency, - .get_bandwidth = xc5000_get_bandwidth, - .get_status = xc5000_get_status -}; - -struct dvb_frontend * xc5000_attach(struct dvb_frontend *fe, - struct i2c_adapter *i2c, - struct xc5000_config *cfg) -{ - struct xc5000_priv *priv = NULL; - u16 id = 0; - - dprintk(1, "%s()\n", __func__); - - priv = kzalloc(sizeof(struct xc5000_priv), GFP_KERNEL); - if (priv == NULL) - return NULL; - - priv->cfg = cfg; - priv->bandwidth = BANDWIDTH_6_MHZ; - priv->i2c = i2c; - - /* Check if firmware has been loaded. It is possible that another - instance of the driver has loaded the firmware. - */ - if (xc5000_readreg(priv, XREG_PRODUCT_ID, &id) != 0) { - kfree(priv); - return NULL; - } - - switch(id) { - case XC_PRODUCT_ID_FW_LOADED: - printk(KERN_INFO - "xc5000: Successfully identified at address 0x%02x\n", - cfg->i2c_address); - printk(KERN_INFO - "xc5000: Firmware has been loaded previously\n"); - priv->fwloaded = 1; - break; - case XC_PRODUCT_ID_FW_NOT_LOADED: - printk(KERN_INFO - "xc5000: Successfully identified at address 0x%02x\n", - cfg->i2c_address); - printk(KERN_INFO - "xc5000: Firmware has not been loaded previously\n"); - priv->fwloaded = 0; - break; - default: - printk(KERN_ERR - "xc5000: Device not found at addr 0x%02x (0x%x)\n", - cfg->i2c_address, id); - kfree(priv); - return NULL; - } - - memcpy(&fe->ops.tuner_ops, &xc5000_tuner_ops, - sizeof(struct dvb_tuner_ops)); - - fe->tuner_priv = priv; - - return fe; -} -EXPORT_SYMBOL(xc5000_attach); - -MODULE_AUTHOR("Steven Toth"); -MODULE_DESCRIPTION("Xceive xc5000 silicon tuner driver"); -MODULE_LICENSE("GPL"); |
