From aacb9d31ee65c0685745ca4dfc7cdd24f8b7d92b Mon Sep 17 00:00:00 2001 From: Steven Toth Date: Tue, 18 Dec 2007 01:55:51 -0300 Subject: V4L/DVB (6884): Add support for the Xceive xc5000 silicon tuner This is an all formats tuner, QAM, ATSC, DVB-T and others. Only ATSC and QAM have been tested. Signed-off-by: Steven Toth Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/Kconfig | 9 + drivers/media/dvb/frontends/Makefile | 1 + drivers/media/dvb/frontends/xc5000.c | 802 ++++++++++++++++++++++++++++++ drivers/media/dvb/frontends/xc5000.h | 51 ++ drivers/media/dvb/frontends/xc5000_priv.h | 37 ++ 5 files changed, 900 insertions(+) create mode 100644 drivers/media/dvb/frontends/xc5000.c create mode 100644 drivers/media/dvb/frontends/xc5000.h create mode 100644 drivers/media/dvb/frontends/xc5000_priv.h diff --git a/drivers/media/dvb/frontends/Kconfig b/drivers/media/dvb/frontends/Kconfig index 57178d6..9ad86ce 100644 --- a/drivers/media/dvb/frontends/Kconfig +++ b/drivers/media/dvb/frontends/Kconfig @@ -360,6 +360,15 @@ config DVB_TUNER_DIB0070 This device is only used inside a SiP called togther with a demodulator for now. +config DVB_TUNER_XC5000 + tristate "Xceive XC5000 silicon tuner" + depends on I2C + default m if DVB_FE_CUSTOMISE + help + A driver for the silicon tuner XC5000 from Xceive. + This device is only used inside a SiP called togther with a + demodulator for now. + comment "Miscellaneous devices" depends on DVB_CORE diff --git a/drivers/media/dvb/frontends/Makefile b/drivers/media/dvb/frontends/Makefile index 7845652..1c082a6 100644 --- a/drivers/media/dvb/frontends/Makefile +++ b/drivers/media/dvb/frontends/Makefile @@ -50,3 +50,4 @@ obj-$(CONFIG_DVB_TUNER_QT1010) += qt1010.o obj-$(CONFIG_DVB_TUA6100) += tua6100.o obj-$(CONFIG_DVB_TUNER_MT2131) += mt2131.o obj-$(CONFIG_DVB_S5H1409) += s5h1409.o +obj-$(CONFIG_DVB_TUNER_XC5000) += xc5000.o diff --git a/drivers/media/dvb/frontends/xc5000.c b/drivers/media/dvb/frontends/xc5000.c new file mode 100644 index 0000000..048f9a7 --- /dev/null +++ b/drivers/media/dvb/frontends/xc5000.c @@ -0,0 +1,802 @@ +/* + * Driver for Xceive XC5000 "QAM/8VSB single chip tuner" + * + * Copyright (c) 2007 Xceive Corporation + * Copyright (c) 2007 Steven Toth + * + * 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 +#include +#include +#include +#include + +#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 12400 + +/* 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 + +/* 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; + unsigned short AudioMode; + unsigned short VideoMode; +} XC_TV_STANDARD; + +/* Tuner standards */ +#define DTV6 17 + +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); + +int xc_send_i2c_data(struct xc5000_priv *priv, + unsigned char *bytes_to_send, int nb_bytes_to_send) +{ + return xc5000_writeregs(priv, bytes_to_send, nb_bytes_to_send) + ? XC_RESULT_I2C_WRITE_FAILURE : XC_RESULT_SUCCESS; +} + +int xc_read_i2c_data(struct xc5000_priv *priv, unsigned char *bytes_received, + int nb_bytes_to_receive) +{ + return xc5000_readregs(priv, bytes_received, nb_bytes_to_receive) + ? XC_RESULT_I2C_READ_FAILURE : XC_RESULT_SUCCESS; +} + +int xc_reset(struct dvb_frontend *fe) +{ + xc5000_TunerReset(fe); + return XC_RESULT_SUCCESS; +} + +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", __FUNCTION__); + + if(priv->cfg->tuner_reset) { + ret = priv->cfg->tuner_reset(fe); + if (ret) + printk(KERN_ERR "xc5000: reset failed\n"); + } else + printk(KERN_ERR "xc5000: no tuner reset function, fatal\n"); +} + +int xc_write_reg(struct xc5000_priv *priv, unsigned short int regAddr, + unsigned short int i2cData) +{ + unsigned char 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; +} + +int xc_read_reg(struct xc5000_priv *priv, unsigned short int regAddr, + unsigned short int *i2cData) +{ + unsigned char 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; +} + +int xc_load_i2c_sequence(struct dvb_frontend *fe, unsigned char i2c_sequence[]) +{ + struct xc5000_priv *priv = fe->tuner_priv; + + int i, nbytes_to_send, result; + unsigned int len, pos, index; + unsigned char 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; ivideo_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; +} + +int xc_shutdown(struct xc5000_priv *priv) +{ + return xc_write_reg(priv, XREG_POWER_DOWN, 0); +} + +int xc_SetSignalSource(struct xc5000_priv *priv, unsigned short int rf_mode) +{ + dprintk(1, "%s(%d) Source = %s\n", __FUNCTION__, 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", + __FUNCTION__); + } + return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode); +} + +int xc_set_RF_frequency(struct xc5000_priv *priv, long frequency_in_hz) +{ + unsigned int frequency_code = (unsigned int)(frequency_in_hz / 15625); + + if ((frequency_in_hz>1023000000) || (frequency_in_hz<1000000)) + return XC_RESULT_OUT_OF_RANGE; + + return xc_write_reg(priv, XREG_RF_FREQ ,frequency_code); +} + +int xc_FineTune_RF_frequency(struct xc5000_priv *priv, long frequency_in_hz) +{ + unsigned int frequency_code = (unsigned int)(frequency_in_hz / 15625); + if ((frequency_in_hz>1023000000) || (frequency_in_hz<1000000)) + return XC_RESULT_OUT_OF_RANGE; + + return xc_write_reg(priv, XREG_FINERFFREQ ,frequency_code); +} + +int xc_set_IF_frequency(struct xc5000_priv *priv, u32 freq_hz) +{ + u32 freq_code = (freq_hz * 1024)/1000000; + dprintk(1, "%s(%d)\n", __FUNCTION__, freq_hz); + + printk(KERN_ERR "FIXME - Hardcoded IF, FIXME\n"); + freq_code = 0x1585; + + return xc_write_reg(priv, XREG_IF_OUT ,freq_code); +} + +int xc_set_Xtal_frequency(struct xc5000_priv *priv, long xtalFreqInKHz) +{ + unsigned int xtalRatio = (32000 * 0x8000)/xtalFreqInKHz; + return xc_write_reg(priv, XREG_XTALFREQ ,xtalRatio); +} + +int xc_get_ADC_Envelope(struct xc5000_priv *priv, + unsigned short int *adc_envelope) +{ + return xc_read_reg(priv, XREG_ADC_ENV, adc_envelope); +} + +int xc_get_frequency_error(struct xc5000_priv *priv, u32 *frequency_error_hz) +{ + int result; + unsigned short int regData; + u32 tmp; + + result = xc_read_reg(priv, XREG_FREQ_ERROR, ®Data); + if (result) + return result; + + tmp = (u32)regData; + (*frequency_error_hz) = (tmp * 15625) / 1000; + return result; +} + +int xc_get_lock_status(struct xc5000_priv *priv, + unsigned short int *lock_status) +{ + return xc_read_reg(priv, XREG_LOCK, lock_status); +} + +int xc_get_version(struct xc5000_priv *priv, + unsigned char* hw_majorversion, + unsigned char* hw_minorversion, + unsigned char* fw_majorversion, + unsigned char* fw_minorversion) +{ + unsigned short int 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; +} + +int xc_get_product_id(struct xc5000_priv *priv, unsigned short int *product_id) +{ + return xc_read_reg(priv, XREG_PRODUCT_ID, product_id); +} + +int xc_get_hsync_freq(struct xc5000_priv *priv, int *hsync_freq_hz) +{ + unsigned short int 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; +} + +int xc_get_frame_lines(struct xc5000_priv *priv, + unsigned short int *frame_lines) +{ + return xc_read_reg(priv, XREG_FRAME_LINES, frame_lines); +} + +int xc_get_quality(struct xc5000_priv *priv, unsigned short int *quality) +{ + return xc_read_reg(priv, XREG_QUALITY, quality); +} + +unsigned short int WaitForLock(struct xc5000_priv *priv) +{ + unsigned short int 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; +} + +int xc_tune_channel(struct xc5000_priv *priv, u32 freq) +{ + int found = 0; + + dprintk(1, "%s(%d)\n", __FUNCTION__, freq); + + if (xc_set_RF_frequency(priv, freq) != 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 until someone uploads it */ + printk(KERN_INFO "xc5000: waiting for firmware upload (%s)...\n", + XC5000_DEFAULT_FIRMWARE); + + if(!priv->cfg->request_firmware) { + printk(KERN_ERR "xc5000: no firmware callback, fatal\n"); + return -EIO; + } + + ret = priv->cfg->request_firmware(fe, &fw, XC5000_DEFAULT_FIRMWARE); + if (ret) { + printk(KERN_ERR "xc5000: Upload failed. (file not found?)\n"); + ret = XC_RESULT_RESET_FAILURE; + } else { + printk(KERN_INFO "xc5000: firmware read %d 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 ); + } + + release_firmware(fw); + return ret; +} + +void xc_debug_dump(struct xc5000_priv *priv) +{ + unsigned short adc_envelope; + u32 frequency_error_hz; + unsigned short lock_status; + unsigned char hw_majorversion, hw_minorversion = 0; + unsigned char fw_majorversion, fw_minorversion = 0; + int hsync_freq_hz; + unsigned short frame_lines; + unsigned short quality; + + /* 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) = %u\n", adc_envelope); + + xc_get_frequency_error(priv, &frequency_error_hz ); + dprintk(1, "*** Frequency error = %d Hz\n", frequency_error_hz); + + xc_get_lock_status(priv, &lock_status ); + dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %u\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 = %u Hz\n", hsync_freq_hz); + + xc_get_frame_lines(priv, &frame_lines ); + dprintk(1, "*** Frame lines = %u\n", frame_lines); + + xc_get_quality(priv, &quality ); + dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %u\n", quality); +} + +static int xc5000_set_params(struct dvb_frontend *fe, + struct dvb_frontend_parameters *params) +{ + struct xc5000_priv *priv = fe->tuner_priv; + + dprintk(1, "%s() frequency=%d\n", __FUNCTION__, params->frequency); + + priv->frequency = params->frequency - 1750000; + priv->bandwidth = 6; + priv->video_standard = DTV6; + + switch(params->u.vsb.modulation) { + case VSB_8: + case VSB_16: + dprintk(1, "%s() VSB modulation\n", __FUNCTION__); + priv->rf_mode = XC_RF_MODE_AIR; + break; + case QAM_64: + case QAM_256: + case QAM_AUTO: + dprintk(1, "%s() QAM modulation\n", __FUNCTION__); + priv->rf_mode = XC_RF_MODE_CABLE; + break; + default: + return -EINVAL; + } + + dprintk(1, "%s() frequency=%d (compensated)\n", + __FUNCTION__, priv->frequency); + + /* FIXME: check result codes */ + xc_SetSignalSource(priv, priv->rf_mode); + + xc_SetTVStandard(priv, + XC5000_Standard[priv->video_standard].VideoMode, + XC5000_Standard[priv->video_standard].AudioMode); + + xc_set_IF_frequency(priv, priv->cfg->if_frequency); + xc_tune_channel(priv, priv->frequency); + 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", __FUNCTION__); + *freq = priv->frequency; + return 0; +} + +static int xc5000_get_bandwidth(struct dvb_frontend *fe, u32 *bw) +{ + struct xc5000_priv *priv = fe->tuner_priv; + dprintk(1, "%s()\n", __FUNCTION__); + *bw = priv->bandwidth; + return 0; +} + +static int xc5000_get_status(struct dvb_frontend *fe, u32 *status) +{ + struct xc5000_priv *priv = fe->tuner_priv; + unsigned short int lock_status = 0; + + xc_get_lock_status(priv, &lock_status); + + dprintk(1, "%s() lock_status = 0x%08x\n", __FUNCTION__, lock_status); + + *status = lock_status; + + return 0; +} + +int xc_load_fw_and_init_tuner(struct dvb_frontend *fe) +{ + struct xc5000_priv *priv = fe->tuner_priv; + int ret; + + if(priv->fwloaded == 0) { + ret = xc5000_fwupload(fe); + if( ret != XC_RESULT_SUCCESS ) + return -EREMOTEIO; + + 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_init(struct dvb_frontend *fe) +{ + struct xc5000_priv *priv = fe->tuner_priv; + dprintk(1, "%s()\n", __FUNCTION__); + + xc_load_fw_and_init_tuner(fe); + xc_debug_dump(priv); + + return 0; +} + +static int xc5000_release(struct dvb_frontend *fe) +{ + dprintk(1, "%s()\n", __FUNCTION__); + 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, + + .set_params = xc5000_set_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", __FUNCTION__); + + priv = kzalloc(sizeof(struct xc5000_priv), GFP_KERNEL); + if (priv == NULL) + return NULL; + + priv->cfg = cfg; + priv->bandwidth = 6000000; /* 6MHz */ + priv->i2c = i2c; + priv->fwloaded = 0; + + if (xc5000_readreg(priv, XREG_PRODUCT_ID, &id) != 0) { + kfree(priv); + return NULL; + } + + if ( (id != 0x2000) && (id != 0x1388) ) { + printk(KERN_ERR + "xc5000: Device not found at addr 0x%02x (0x%x)\n", + cfg->i2c_address, id); + kfree(priv); + return NULL; + } + + printk(KERN_INFO "xc5000: successfully identified at address 0x%02x\n", + cfg->i2c_address); + + 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"); diff --git a/drivers/media/dvb/frontends/xc5000.h b/drivers/media/dvb/frontends/xc5000.h new file mode 100644 index 0000000..ce5a321 --- /dev/null +++ b/drivers/media/dvb/frontends/xc5000.h @@ -0,0 +1,51 @@ +/* + * Driver for Xceive XC5000 "QAM/8VSB single chip tuner" + * + * Copyright (c) 2007 Steven Toth + * + * 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. + */ + +#ifndef __XC5000_H__ +#define __XC5000_H__ + +#include + +struct dvb_frontend; +struct i2c_adapter; + +struct xc5000_config { + u8 i2c_address; + u32 if_frequency; + int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name); + int (*tuner_reset)(struct dvb_frontend* fe); +}; + +#if defined(CONFIG_DVB_TUNER_XC5000) || defined(CONFIG_DVB_TUNER_XC5000_MODULE) +extern struct dvb_frontend* xc5000_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c, + struct xc5000_config *cfg); +#else +static inline struct dvb_frontend* xc5000_attach(struct dvb_frontend *fe, + struct i2c_adapter *i2c, + struct xc5000_config *cfg); +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__); + return NULL; +} +#endif // CONFIG_DVB_TUNER_XC5000 + +#endif // __XC5000_H__ diff --git a/drivers/media/dvb/frontends/xc5000_priv.h b/drivers/media/dvb/frontends/xc5000_priv.h new file mode 100644 index 0000000..a2b5453 --- /dev/null +++ b/drivers/media/dvb/frontends/xc5000_priv.h @@ -0,0 +1,37 @@ +/* + * Driver for Xceive XC5000 "QAM/8VSB single chip tuner" + * + * Copyright (c) 2007 Steven Toth + * + * 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. + */ + +#ifndef XC5000_PRIV_H +#define XC5000_PRIV_H + +struct xc5000_priv { + struct xc5000_config *cfg; + struct i2c_adapter *i2c; + + u32 frequency; + u32 bandwidth; + u8 video_standard; + u8 rf_mode; + + u8 fwloaded; +}; + +#endif -- cgit v1.1