diff options
Diffstat (limited to 'drivers/media/common/tuners/xc4000.c')
| -rw-r--r-- | drivers/media/common/tuners/xc4000.c | 1758 |
1 files changed, 0 insertions, 1758 deletions
diff --git a/drivers/media/common/tuners/xc4000.c b/drivers/media/common/tuners/xc4000.c deleted file mode 100644 index 6839711..0000000 --- a/drivers/media/common/tuners/xc4000.c +++ /dev/null @@ -1,1758 +0,0 @@ -/* - * 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> - * Copyright (c) 2010 Istvan Varga <istvan_v@mailbox.hu> - * - * 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 <linux/mutex.h> -#include <asm/unaligned.h> - -#include "dvb_frontend.h" - -#include "xc4000.h" -#include "tuner-i2c.h" -#include "tuner-xc2028-types.h" - -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Debugging level (0 to 2, default: 0 (off))."); - -static int no_poweroff; -module_param(no_poweroff, int, 0644); -MODULE_PARM_DESC(no_poweroff, "Power management (1: disabled, 2: enabled, " - "0 (default): use device-specific default mode)."); - -static int audio_std; -module_param(audio_std, int, 0644); -MODULE_PARM_DESC(audio_std, "Audio standard. XC4000 audio decoder explicitly " - "needs to know what audio standard is needed for some video standards " - "with audio A2 or NICAM. The valid settings are a sum of:\n" - " 1: use NICAM/B or A2/B instead of NICAM/A or A2/A\n" - " 2: use A2 instead of NICAM or BTSC\n" - " 4: use SECAM/K3 instead of K1\n" - " 8: use PAL-D/K audio for SECAM-D/K\n" - "16: use FM radio input 1 instead of input 2\n" - "32: use mono audio (the lower three bits are ignored)"); - -static char firmware_name[30]; -module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0); -MODULE_PARM_DESC(firmware_name, "Firmware file name. Allows overriding the " - "default firmware name."); - -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) - -/* struct for storing firmware table */ -struct firmware_description { - unsigned int type; - v4l2_std_id id; - __u16 int_freq; - unsigned char *ptr; - unsigned int size; -}; - -struct firmware_properties { - unsigned int type; - v4l2_std_id id; - v4l2_std_id std_req; - __u16 int_freq; - unsigned int scode_table; - int scode_nr; -}; - -struct xc4000_priv { - struct tuner_i2c_props i2c_props; - struct list_head hybrid_tuner_instance_list; - struct firmware_description *firm; - int firm_size; - u32 if_khz; - u32 freq_hz; - u32 bandwidth; - u8 video_standard; - u8 rf_mode; - u8 default_pm; - u8 dvb_amplitude; - u8 set_smoothedcvbs; - u8 ignore_i2c_write_errors; - __u16 firm_version; - struct firmware_properties cur_fw; - __u16 hwmodel; - __u16 hwvers; - struct mutex lock; -}; - -#define XC4000_AUDIO_STD_B 1 -#define XC4000_AUDIO_STD_A2 2 -#define XC4000_AUDIO_STD_K3 4 -#define XC4000_AUDIO_STD_L 8 -#define XC4000_AUDIO_STD_INPUT1 16 -#define XC4000_AUDIO_STD_MONO 32 - -#define XC4000_DEFAULT_FIRMWARE "dvb-fe-xc4000-1.4.fw" - -/* Misc Defines */ -#define MAX_TV_STANDARD 24 -#define XC_MAX_I2C_WRITE_LENGTH 64 -#define XC_POWERED_DOWN 0x80000000U - -/* Signal Types */ -#define XC_RF_MODE_AIR 0 -#define XC_RF_MODE_CABLE 1 - -/* Product id */ -#define XC_PRODUCT_ID_FW_NOT_LOADED 0x2000 -#define XC_PRODUCT_ID_XC4000 0x0FA0 -#define XC_PRODUCT_ID_XC4100 0x1004 - -/* Registers (Write-only) */ -#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_DIRECTSITTING_MODE 0x05 -#define XREG_SEEK_MODE 0x06 -#define XREG_POWER_DOWN 0x08 -#define XREG_SIGNALSOURCE 0x0A -#define XREG_SMOOTHEDCVBS 0x0E -#define XREG_AMPLITUDE 0x10 - -/* Registers (Read-only) */ -#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_SIGNAL_LEVEL 0x0A -#define XREG_NOISE_LEVEL 0x0B - -/* - 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 { - const char *Name; - u16 audio_mode; - u16 video_mode; - u16 int_freq; -}; - -/* Tuner standards */ -#define XC4000_MN_NTSC_PAL_BTSC 0 -#define XC4000_MN_NTSC_PAL_A2 1 -#define XC4000_MN_NTSC_PAL_EIAJ 2 -#define XC4000_MN_NTSC_PAL_Mono 3 -#define XC4000_BG_PAL_A2 4 -#define XC4000_BG_PAL_NICAM 5 -#define XC4000_BG_PAL_MONO 6 -#define XC4000_I_PAL_NICAM 7 -#define XC4000_I_PAL_NICAM_MONO 8 -#define XC4000_DK_PAL_A2 9 -#define XC4000_DK_PAL_NICAM 10 -#define XC4000_DK_PAL_MONO 11 -#define XC4000_DK_SECAM_A2DK1 12 -#define XC4000_DK_SECAM_A2LDK3 13 -#define XC4000_DK_SECAM_A2MONO 14 -#define XC4000_DK_SECAM_NICAM 15 -#define XC4000_L_SECAM_NICAM 16 -#define XC4000_LC_SECAM_NICAM 17 -#define XC4000_DTV6 18 -#define XC4000_DTV8 19 -#define XC4000_DTV7_8 20 -#define XC4000_DTV7 21 -#define XC4000_FM_Radio_INPUT2 22 -#define XC4000_FM_Radio_INPUT1 23 - -static struct XC_TV_STANDARD xc4000_standard[MAX_TV_STANDARD] = { - {"M/N-NTSC/PAL-BTSC", 0x0000, 0x80A0, 4500}, - {"M/N-NTSC/PAL-A2", 0x0000, 0x80A0, 4600}, - {"M/N-NTSC/PAL-EIAJ", 0x0040, 0x80A0, 4500}, - {"M/N-NTSC/PAL-Mono", 0x0078, 0x80A0, 4500}, - {"B/G-PAL-A2", 0x0000, 0x8159, 5640}, - {"B/G-PAL-NICAM", 0x0004, 0x8159, 5740}, - {"B/G-PAL-MONO", 0x0078, 0x8159, 5500}, - {"I-PAL-NICAM", 0x0080, 0x8049, 6240}, - {"I-PAL-NICAM-MONO", 0x0078, 0x8049, 6000}, - {"D/K-PAL-A2", 0x0000, 0x8049, 6380}, - {"D/K-PAL-NICAM", 0x0080, 0x8049, 6200}, - {"D/K-PAL-MONO", 0x0078, 0x8049, 6500}, - {"D/K-SECAM-A2 DK1", 0x0000, 0x8049, 6340}, - {"D/K-SECAM-A2 L/DK3", 0x0000, 0x8049, 6000}, - {"D/K-SECAM-A2 MONO", 0x0078, 0x8049, 6500}, - {"D/K-SECAM-NICAM", 0x0080, 0x8049, 6200}, - {"L-SECAM-NICAM", 0x8080, 0x0009, 6200}, - {"L'-SECAM-NICAM", 0x8080, 0x4009, 6200}, - {"DTV6", 0x00C0, 0x8002, 0}, - {"DTV8", 0x00C0, 0x800B, 0}, - {"DTV7/8", 0x00C0, 0x801B, 0}, - {"DTV7", 0x00C0, 0x8007, 0}, - {"FM Radio-INPUT2", 0x0008, 0x9800, 10700}, - {"FM Radio-INPUT1", 0x0008, 0x9000, 10700} -}; - -static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val); -static int xc4000_tuner_reset(struct dvb_frontend *fe); -static void xc_debug_dump(struct xc4000_priv *priv); - -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) { - if (priv->ignore_i2c_write_errors == 0) { - printk(KERN_ERR "xc4000: I2C write failed (len=%i)\n", - len); - if (len == 4) { - printk(KERN_ERR "bytes %02x %02x %02x %02x\n", buf[0], - buf[1], buf[2], buf[3]); - } - return -EREMOTEIO; - } - } - return 0; -} - -static int xc4000_tuner_reset(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 -EREMOTEIO; - } - } else { - printk(KERN_ERR "xc4000: no tuner reset callback function, " - "fatal\n"); - return -EINVAL; - } - return 0; -} - -static int xc_write_reg(struct xc4000_priv *priv, u16 regAddr, u16 i2cData) -{ - u8 buf[4]; - 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); - - 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 */ - /* NOTE: this is ignored, as the reset callback was */ - /* already called by check_firmware() */ - index += 2; - } else if (len & 0x8000) { - /* WAIT command */ - msleep(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 != 0) - return result; - - pos += nbytes_to_send - 2; - } - index += len; - } - } - return 0; -} - -static int xc_set_tv_standard(struct xc4000_priv *priv, - u16 video_mode, u16 audio_mode) -{ - int ret; - dprintk(1, "%s(0x%04x,0x%04x)\n", __func__, video_mode, audio_mode); - dprintk(1, "%s() Standard = %s\n", - __func__, - xc4000_standard[priv->video_standard].Name); - - /* Don't complain when the request fails because of i2c stretching */ - priv->ignore_i2c_write_errors = 1; - - ret = xc_write_reg(priv, XREG_VIDEO_MODE, video_mode); - if (ret == 0) - ret = xc_write_reg(priv, XREG_AUDIO_MODE, audio_mode); - - priv->ignore_i2c_write_errors = 0; - - return ret; -} - -static int xc_set_signal_source(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 -EINVAL; - - 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) */ - /* WAS: XREG_FINERFREQ */ - return xc_write_reg(priv, XREG_RF_FREQ, 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 != 0) - return result; - - tmp = (u32)regData & 0xFFFFU; - tmp = (tmp < 0x8000U ? tmp : 0x10000U - tmp); - (*freq_error_hz) = tmp * 15625; - 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 != 0) - 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 xc4000_priv *priv, u32 *hsync_freq_hz) -{ - u16 regData; - int result; - - result = xc4000_readreg(priv, XREG_HSYNC_FREQ, ®Data); - if (result != 0) - 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 int xc_get_signal_level(struct xc4000_priv *priv, u16 *signal) -{ - return xc4000_readreg(priv, XREG_SIGNAL_LEVEL, signal); -} - -static int xc_get_noise_level(struct xc4000_priv *priv, u16 *noise) -{ - return xc4000_readreg(priv, XREG_NOISE_LEVEL, noise); -} - -static u16 xc_wait_for_lock(struct xc4000_priv *priv) -{ - u16 lock_state = 0; - int watchdog_count = 40; - - while ((lock_state == 0) && (watchdog_count > 0)) { - xc_get_lock_status(priv, &lock_state); - if (lock_state != 1) { - msleep(5); - watchdog_count--; - } - } - return lock_state; -} - -static int xc_tune_channel(struct xc4000_priv *priv, u32 freq_hz) -{ - int found = 1; - int result; - - dprintk(1, "%s(%u)\n", __func__, freq_hz); - - /* Don't complain when the request fails because of i2c stretching */ - priv->ignore_i2c_write_errors = 1; - result = xc_set_rf_frequency(priv, freq_hz); - priv->ignore_i2c_write_errors = 0; - - if (result != 0) - return 0; - - /* wait for lock only in analog TV mode */ - if ((priv->cur_fw.type & (FM | DTV6 | DTV7 | DTV78 | DTV8)) == 0) { - if (xc_wait_for_lock(priv) != 1) - found = 0; - } - - /* Wait for stats to stabilize. - * Frame Lines needs two frame times after initial lock - * before it is valid. - */ - msleep(debug ? 100 : 10); - - if (debug) - xc_debug_dump(priv); - - 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_ERR "xc4000: I2C read failed\n"); - return -EREMOTEIO; - } - - *val = (bval[0] << 8) | bval[1]; - return 0; -} - -#define dump_firm_type(t) dump_firm_type_and_int_freq(t, 0) -static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq) -{ - if (type & BASE) - printk(KERN_CONT "BASE "); - if (type & INIT1) - printk(KERN_CONT "INIT1 "); - if (type & F8MHZ) - printk(KERN_CONT "F8MHZ "); - if (type & MTS) - printk(KERN_CONT "MTS "); - if (type & D2620) - printk(KERN_CONT "D2620 "); - if (type & D2633) - printk(KERN_CONT "D2633 "); - if (type & DTV6) - printk(KERN_CONT "DTV6 "); - if (type & QAM) - printk(KERN_CONT "QAM "); - if (type & DTV7) - printk(KERN_CONT "DTV7 "); - if (type & DTV78) - printk(KERN_CONT "DTV78 "); - if (type & DTV8) - printk(KERN_CONT "DTV8 "); - if (type & FM) - printk(KERN_CONT "FM "); - if (type & INPUT1) - printk(KERN_CONT "INPUT1 "); - if (type & LCD) - printk(KERN_CONT "LCD "); - if (type & NOGD) - printk(KERN_CONT "NOGD "); - if (type & MONO) - printk(KERN_CONT "MONO "); - if (type & ATSC) - printk(KERN_CONT "ATSC "); - if (type & IF) - printk(KERN_CONT "IF "); - if (type & LG60) - printk(KERN_CONT "LG60 "); - if (type & ATI638) - printk(KERN_CONT "ATI638 "); - if (type & OREN538) - printk(KERN_CONT "OREN538 "); - if (type & OREN36) - printk(KERN_CONT "OREN36 "); - if (type & TOYOTA388) - printk(KERN_CONT "TOYOTA388 "); - if (type & TOYOTA794) - printk(KERN_CONT "TOYOTA794 "); - if (type & DIBCOM52) - printk(KERN_CONT "DIBCOM52 "); - if (type & ZARLINK456) - printk(KERN_CONT "ZARLINK456 "); - if (type & CHINA) - printk(KERN_CONT "CHINA "); - if (type & F6MHZ) - printk(KERN_CONT "F6MHZ "); - if (type & INPUT2) - printk(KERN_CONT "INPUT2 "); - if (type & SCODE) - printk(KERN_CONT "SCODE "); - if (type & HAS_IF) - printk(KERN_CONT "HAS_IF_%d ", int_freq); -} - -static int seek_firmware(struct dvb_frontend *fe, unsigned int type, - v4l2_std_id *id) -{ - struct xc4000_priv *priv = fe->tuner_priv; - int i, best_i = -1; - unsigned int best_nr_diffs = 255U; - - if (!priv->firm) { - printk(KERN_ERR "Error! firmware not loaded\n"); - return -EINVAL; - } - - if (((type & ~SCODE) == 0) && (*id == 0)) - *id = V4L2_STD_PAL; - - /* Seek for generic video standard match */ - for (i = 0; i < priv->firm_size; i++) { - v4l2_std_id id_diff_mask = - (priv->firm[i].id ^ (*id)) & (*id); - unsigned int type_diff_mask = - (priv->firm[i].type ^ type) - & (BASE_TYPES | DTV_TYPES | LCD | NOGD | MONO | SCODE); - unsigned int nr_diffs; - - if (type_diff_mask - & (BASE | INIT1 | FM | DTV6 | DTV7 | DTV78 | DTV8 | SCODE)) - continue; - - nr_diffs = hweight64(id_diff_mask) + hweight32(type_diff_mask); - if (!nr_diffs) /* Supports all the requested standards */ - goto found; - - if (nr_diffs < best_nr_diffs) { - best_nr_diffs = nr_diffs; - best_i = i; - } - } - - /* FIXME: Would make sense to seek for type "hint" match ? */ - if (best_i < 0) { - i = -ENOENT; - goto ret; - } - - if (best_nr_diffs > 0U) { - printk(KERN_WARNING - "Selecting best matching firmware (%u bits differ) for " - "type=(%x), id %016llx:\n", - best_nr_diffs, type, (unsigned long long)*id); - i = best_i; - } - -found: - *id = priv->firm[i].id; - -ret: - if (debug) { - printk(KERN_DEBUG "%s firmware for type=", - (i < 0) ? "Can't find" : "Found"); - dump_firm_type(type); - printk(KERN_DEBUG "(%x), id %016llx.\n", type, (unsigned long long)*id); - } - return i; -} - -static int load_firmware(struct dvb_frontend *fe, unsigned int type, - v4l2_std_id *id) -{ - struct xc4000_priv *priv = fe->tuner_priv; - int pos, rc; - unsigned char *p; - - pos = seek_firmware(fe, type, id); - if (pos < 0) - return pos; - - p = priv->firm[pos].ptr; - - /* Don't complain when the request fails because of i2c stretching */ - priv->ignore_i2c_write_errors = 1; - - rc = xc_load_i2c_sequence(fe, p); - - priv->ignore_i2c_write_errors = 0; - - return rc; -} - -static int xc4000_fwupload(struct dvb_frontend *fe) -{ - struct xc4000_priv *priv = fe->tuner_priv; - const struct firmware *fw = NULL; - const unsigned char *p, *endp; - int rc = 0; - int n, n_array; - char name[33]; - const char *fname; - - if (firmware_name[0] != '\0') - fname = firmware_name; - else - fname = XC4000_DEFAULT_FIRMWARE; - - dprintk(1, "Reading firmware %s\n", fname); - rc = request_firmware(&fw, fname, priv->i2c_props.adap->dev.parent); - if (rc < 0) { - if (rc == -ENOENT) - printk(KERN_ERR "Error: firmware %s not found.\n", fname); - else - printk(KERN_ERR "Error %d while requesting firmware %s\n", - rc, fname); - - return rc; - } - p = fw->data; - endp = p + fw->size; - - if (fw->size < sizeof(name) - 1 + 2 + 2) { - printk(KERN_ERR "Error: firmware file %s has invalid size!\n", - fname); - goto corrupt; - } - - memcpy(name, p, sizeof(name) - 1); - name[sizeof(name) - 1] = '\0'; - p += sizeof(name) - 1; - - priv->firm_version = get_unaligned_le16(p); - p += 2; - - n_array = get_unaligned_le16(p); - p += 2; - - dprintk(1, "Loading %d firmware images from %s, type: %s, ver %d.%d\n", - n_array, fname, name, - priv->firm_version >> 8, priv->firm_version & 0xff); - - priv->firm = kcalloc(n_array, sizeof(*priv->firm), GFP_KERNEL); - if (priv->firm == NULL) { - printk(KERN_ERR "Not enough memory to load firmware file.\n"); - rc = -ENOMEM; - goto done; - } - priv->firm_size = n_array; - - n = -1; - while (p < endp) { - __u32 type, size; - v4l2_std_id id; - __u16 int_freq = 0; - - n++; - if (n >= n_array) { - printk(KERN_ERR "More firmware images in file than " - "were expected!\n"); - goto corrupt; - } - - /* Checks if there's enough bytes to read */ - if (endp - p < sizeof(type) + sizeof(id) + sizeof(size)) - goto header; - - type = get_unaligned_le32(p); - p += sizeof(type); - - id = get_unaligned_le64(p); - p += sizeof(id); - - if (type & HAS_IF) { - int_freq = get_unaligned_le16(p); - p += sizeof(int_freq); - if (endp - p < sizeof(size)) - goto header; - } - - size = get_unaligned_le32(p); - p += sizeof(size); - - if (!size || size > endp - p) { - printk(KERN_ERR "Firmware type (%x), id %llx is corrupted (size=%d, expected %d)\n", - type, (unsigned long long)id, - (unsigned)(endp - p), size); - goto corrupt; - } - - priv->firm[n].ptr = kzalloc(size, GFP_KERNEL); - if (priv->firm[n].ptr == NULL) { - printk(KERN_ERR "Not enough memory to load firmware file.\n"); - rc = -ENOMEM; - goto done; - } - - if (debug) { - printk(KERN_DEBUG "Reading firmware type "); - dump_firm_type_and_int_freq(type, int_freq); - printk(KERN_DEBUG "(%x), id %llx, size=%d.\n", - type, (unsigned long long)id, size); - } - - memcpy(priv->firm[n].ptr, p, size); - priv->firm[n].type = type; - priv->firm[n].id = id; - priv->firm[n].size = size; - priv->firm[n].int_freq = int_freq; - - p += size; - } - - if (n + 1 != priv->firm_size) { - printk(KERN_ERR "Firmware file is incomplete!\n"); - goto corrupt; - } - - goto done; - -header: - printk(KERN_ERR "Firmware header is incomplete!\n"); -corrupt: - rc = -EINVAL; - printk(KERN_ERR "Error: firmware file is corrupted!\n"); - -done: - release_firmware(fw); - if (rc == 0) - dprintk(1, "Firmware files loaded.\n"); - - return rc; -} - -static int load_scode(struct dvb_frontend *fe, unsigned int type, - v4l2_std_id *id, __u16 int_freq, int scode) -{ - struct xc4000_priv *priv = fe->tuner_priv; - int pos, rc; - unsigned char *p; - u8 scode_buf[13]; - u8 indirect_mode[5]; - - dprintk(1, "%s called int_freq=%d\n", __func__, int_freq); - - if (!int_freq) { - pos = seek_firmware(fe, type, id); - if (pos < 0) - return pos; - } else { - for (pos = 0; pos < priv->firm_size; pos++) { - if ((priv->firm[pos].int_freq == int_freq) && - (priv->firm[pos].type & HAS_IF)) - break; - } - if (pos == priv->firm_size) - return -ENOENT; - } - - p = priv->firm[pos].ptr; - - if (priv->firm[pos].size != 12 * 16 || scode >= 16) - return -EINVAL; - p += 12 * scode; - - if (debug) { - tuner_info("Loading SCODE for type="); - dump_firm_type_and_int_freq(priv->firm[pos].type, - priv->firm[pos].int_freq); - printk(KERN_CONT "(%x), id %016llx.\n", priv->firm[pos].type, - (unsigned long long)*id); - } - - scode_buf[0] = 0x00; - memcpy(&scode_buf[1], p, 12); - - /* Enter direct-mode */ - rc = xc_write_reg(priv, XREG_DIRECTSITTING_MODE, 0); - if (rc < 0) { - printk(KERN_ERR "failed to put device into direct mode!\n"); - return -EIO; - } - - rc = xc_send_i2c_data(priv, scode_buf, 13); - if (rc != 0) { - /* Even if the send failed, make sure we set back to indirect - mode */ - printk(KERN_ERR "Failed to set scode %d\n", rc); - } - - /* Switch back to indirect-mode */ - memset(indirect_mode, 0, sizeof(indirect_mode)); - indirect_mode[4] = 0x88; - xc_send_i2c_data(priv, indirect_mode, sizeof(indirect_mode)); - msleep(10); - - return 0; -} - -static int check_firmware(struct dvb_frontend *fe, unsigned int type, - v4l2_std_id std, __u16 int_freq) -{ - struct xc4000_priv *priv = fe->tuner_priv; - struct firmware_properties new_fw; - int rc = 0, is_retry = 0; - u16 hwmodel; - v4l2_std_id std0; - u8 hw_major, hw_minor, fw_major, fw_minor; - - dprintk(1, "%s called\n", __func__); - - if (!priv->firm) { - rc = xc4000_fwupload(fe); - if (rc < 0) - return rc; - } - -retry: - new_fw.type = type; - new_fw.id = std; - new_fw.std_req = std; - new_fw.scode_table = SCODE; - new_fw.scode_nr = 0; - new_fw.int_freq = int_freq; - - dprintk(1, "checking firmware, user requested type="); - if (debug) { - dump_firm_type(new_fw.type); - printk(KERN_CONT "(%x), id %016llx, ", new_fw.type, - (unsigned long long)new_fw.std_req); - if (!int_freq) - printk(KERN_CONT "scode_tbl "); - else - printk(KERN_CONT "int_freq %d, ", new_fw.int_freq); - printk(KERN_CONT "scode_nr %d\n", new_fw.scode_nr); - } - - /* No need to reload base firmware if it matches */ - if (priv->cur_fw.type & BASE) { - dprintk(1, "BASE firmware not changed.\n"); - goto skip_base; - } - - /* Updating BASE - forget about all currently loaded firmware */ - memset(&priv->cur_fw, 0, sizeof(priv->cur_fw)); - - /* Reset is needed before loading firmware */ - rc = xc4000_tuner_reset(fe); - if (rc < 0) - goto fail; - - /* BASE firmwares are all std0 */ - std0 = 0; - rc = load_firmware(fe, BASE, &std0); - if (rc < 0) { - printk(KERN_ERR "Error %d while loading base firmware\n", rc); - goto fail; - } - - /* Load INIT1, if needed */ - dprintk(1, "Load init1 firmware, if exists\n"); - - rc = load_firmware(fe, BASE | INIT1, &std0); - if (rc == -ENOENT) - rc = load_firmware(fe, BASE | INIT1, &std0); - if (rc < 0 && rc != -ENOENT) { - tuner_err("Error %d while loading init1 firmware\n", - rc); - goto fail; - } - -skip_base: - /* - * No need to reload standard specific firmware if base firmware - * was not reloaded and requested video standards have not changed. - */ - if (priv->cur_fw.type == (BASE | new_fw.type) && - priv->cur_fw.std_req == std) { - dprintk(1, "Std-specific firmware already loaded.\n"); - goto skip_std_specific; - } - - /* Reloading std-specific firmware forces a SCODE update */ - priv->cur_fw.scode_table = 0; - - /* Load the standard firmware */ - rc = load_firmware(fe, new_fw.type, &new_fw.id); - - if (rc < 0) - goto fail; - -skip_std_specific: - if (priv->cur_fw.scode_table == new_fw.scode_table && - priv->cur_fw.scode_nr == new_fw.scode_nr) { - dprintk(1, "SCODE firmware already loaded.\n"); - goto check_device; - } - - /* Load SCODE firmware, if exists */ - rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id, - new_fw.int_freq, new_fw.scode_nr); - if (rc != 0) - dprintk(1, "load scode failed %d\n", rc); - -check_device: - rc = xc4000_readreg(priv, XREG_PRODUCT_ID, &hwmodel); - - if (xc_get_version(priv, &hw_major, &hw_minor, &fw_major, - &fw_minor) != 0) { - printk(KERN_ERR "Unable to read tuner registers.\n"); - goto fail; - } - - dprintk(1, "Device is Xceive %d version %d.%d, " - "firmware version %d.%d\n", - hwmodel, hw_major, hw_minor, fw_major, fw_minor); - - /* Check firmware version against what we downloaded. */ - if (priv->firm_version != ((fw_major << 8) | fw_minor)) { - printk(KERN_WARNING - "Incorrect readback of firmware version %d.%d.\n", - fw_major, fw_minor); - goto fail; - } - - /* Check that the tuner hardware model remains consistent over time. */ - if (priv->hwmodel == 0 && - (hwmodel == XC_PRODUCT_ID_XC4000 || - hwmodel == XC_PRODUCT_ID_XC4100)) { - priv->hwmodel = hwmodel; - priv->hwvers = (hw_major << 8) | hw_minor; - } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel || - priv->hwvers != ((hw_major << 8) | hw_minor)) { - printk(KERN_WARNING - "Read invalid device hardware information - tuner " - "hung?\n"); - goto fail; - } - - memcpy(&priv->cur_fw, &new_fw, sizeof(priv->cur_fw)); - - /* - * By setting BASE in cur_fw.type only after successfully loading all - * firmwares, we can: - * 1. Identify that BASE firmware with type=0 has been loaded; - * 2. Tell whether BASE firmware was just changed the next time through. - */ - priv->cur_fw.type |= BASE; - - return 0; - -fail: - memset(&priv->cur_fw, 0, sizeof(priv->cur_fw)); - if (!is_retry) { - msleep(50); - is_retry = 1; - dprintk(1, "Retrying firmware load\n"); - goto retry; - } - - if (rc == -ENOENT) - rc = -EINVAL; - return rc; -} - -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; - u16 signal = 0; - u16 noise = 0; - u8 hw_majorversion = 0, hw_minorversion = 0; - u8 fw_majorversion = 0, fw_minorversion = 0; - - 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); - - if (priv->video_standard < XC4000_DTV6) { - 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); - - xc_get_signal_level(priv, &signal); - dprintk(1, "*** Signal level = -%ddB (%d)\n", signal >> 8, signal); - - xc_get_noise_level(priv, &noise); - dprintk(1, "*** Noise level = %ddB (%d)\n", noise >> 8, noise); -} - -static int xc4000_set_params(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - u32 delsys = c->delivery_system; - u32 bw = c->bandwidth_hz; - struct xc4000_priv *priv = fe->tuner_priv; - unsigned int type; - int ret = -EREMOTEIO; - - dprintk(1, "%s() frequency=%d (Hz)\n", __func__, c->frequency); - - mutex_lock(&priv->lock); - - switch (delsys) { - case SYS_ATSC: - dprintk(1, "%s() VSB modulation\n", __func__); - priv->rf_mode = XC_RF_MODE_AIR; - priv->freq_hz = c->frequency - 1750000; - priv->video_standard = XC4000_DTV6; - type = DTV6; - break; - case SYS_DVBC_ANNEX_B: - dprintk(1, "%s() QAM modulation\n", __func__); - priv->rf_mode = XC_RF_MODE_CABLE; - priv->freq_hz = c->frequency - 1750000; - priv->video_standard = XC4000_DTV6; - type = DTV6; - break; - case SYS_DVBT: - case SYS_DVBT2: - dprintk(1, "%s() OFDM\n", __func__); - if (bw == 0) { - if (c->frequency < 400000000) { - priv->freq_hz = c->frequency - 2250000; - } else { - priv->freq_hz = c->frequency - 2750000; - } - priv->video_standard = XC4000_DTV7_8; - type = DTV78; - } else if (bw <= 6000000) { - priv->video_standard = XC4000_DTV6; - priv->freq_hz = c->frequency - 1750000; - type = DTV6; - } else if (bw <= 7000000) { - priv->video_standard = XC4000_DTV7; - priv->freq_hz = c->frequency - 2250000; - type = DTV7; - } else { - priv->video_standard = XC4000_DTV8; - priv->freq_hz = c->frequency - 2750000; - type = DTV8; - } - priv->rf_mode = XC_RF_MODE_AIR; - break; - default: - printk(KERN_ERR "xc4000 delivery system not supported!\n"); - ret = -EINVAL; - goto fail; - } - - dprintk(1, "%s() frequency=%d (compensated)\n", - __func__, priv->freq_hz); - - /* Make sure the correct firmware type is loaded */ - if (check_firmware(fe, type, 0, priv->if_khz) != 0) - goto fail; - - priv->bandwidth = c->bandwidth_hz; - - ret = xc_set_signal_source(priv, priv->rf_mode); - if (ret != 0) { - printk(KERN_ERR "xc4000: xc_set_signal_source(%d) failed\n", - priv->rf_mode); - goto fail; - } else { - u16 video_mode, audio_mode; - video_mode = xc4000_standard[priv->video_standard].video_mode; - audio_mode = xc4000_standard[priv->video_standard].audio_mode; - if (type == DTV6 && priv->firm_version != 0x0102) - video_mode |= 0x0001; - ret = xc_set_tv_standard(priv, video_mode, audio_mode); - if (ret != 0) { - printk(KERN_ERR "xc4000: xc_set_tv_standard failed\n"); - /* DJH - do not return when it fails... */ - /* goto fail; */ - } - } - - if (xc_write_reg(priv, XREG_D_CODE, 0) == 0) - ret = 0; - if (priv->dvb_amplitude != 0) { - if (xc_write_reg(priv, XREG_AMPLITUDE, - (priv->firm_version != 0x0102 || - priv->dvb_amplitude != 134 ? - priv->dvb_amplitude : 132)) != 0) - ret = -EREMOTEIO; - } - if (priv->set_smoothedcvbs != 0) { - if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0) - ret = -EREMOTEIO; - } - if (ret != 0) { - printk(KERN_ERR "xc4000: setting registers failed\n"); - /* goto fail; */ - } - - xc_tune_channel(priv, priv->freq_hz); - - ret = 0; - -fail: - mutex_unlock(&priv->lock); - - return ret; -} - -static int xc4000_set_analog_params(struct dvb_frontend *fe, - struct analog_parameters *params) -{ - struct xc4000_priv *priv = fe->tuner_priv; - unsigned int type = 0; - int ret = -EREMOTEIO; - - if (params->mode == V4L2_TUNER_RADIO) { - dprintk(1, "%s() frequency=%d (in units of 62.5Hz)\n", - __func__, params->frequency); - - mutex_lock(&priv->lock); - - params->std = 0; - priv->freq_hz = params->frequency * 125L / 2; - - if (audio_std & XC4000_AUDIO_STD_INPUT1) { - priv->video_standard = XC4000_FM_Radio_INPUT1; - type = FM | INPUT1; - } else { - priv->video_standard = XC4000_FM_Radio_INPUT2; - type = FM | INPUT2; - } - - goto tune_channel; - } - - dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n", - __func__, params->frequency); - - mutex_lock(&priv->lock); - - /* params->frequency is in units of 62.5khz */ - priv->freq_hz = params->frequency * 62500; - - params->std &= V4L2_STD_ALL; - /* if std is not defined, choose one */ - if (!params->std) - params->std = V4L2_STD_PAL_BG; - - if (audio_std & XC4000_AUDIO_STD_MONO) - type = MONO; - - if (params->std & V4L2_STD_MN) { - params->std = V4L2_STD_MN; - if (audio_std & XC4000_AUDIO_STD_MONO) { - priv->video_standard = XC4000_MN_NTSC_PAL_Mono; - } else if (audio_std & XC4000_AUDIO_STD_A2) { - params->std |= V4L2_STD_A2; - priv->video_standard = XC4000_MN_NTSC_PAL_A2; - } else { - params->std |= V4L2_STD_BTSC; - priv->video_standard = XC4000_MN_NTSC_PAL_BTSC; - } - goto tune_channel; - } - - if (params->std & V4L2_STD_PAL_BG) { - params->std = V4L2_STD_PAL_BG; - if (audio_std & XC4000_AUDIO_STD_MONO) { - priv->video_standard = XC4000_BG_PAL_MONO; - } else if (!(audio_std & XC4000_AUDIO_STD_A2)) { - if (!(audio_std & XC4000_AUDIO_STD_B)) { - params->std |= V4L2_STD_NICAM_A; - priv->video_standard = XC4000_BG_PAL_NICAM; - } else { - params->std |= V4L2_STD_NICAM_B; - priv->video_standard = XC4000_BG_PAL_NICAM; - } - } else { - if (!(audio_std & XC4000_AUDIO_STD_B)) { - params->std |= V4L2_STD_A2_A; - priv->video_standard = XC4000_BG_PAL_A2; - } else { - params->std |= V4L2_STD_A2_B; - priv->video_standard = XC4000_BG_PAL_A2; - } - } - goto tune_channel; - } - - if (params->std & V4L2_STD_PAL_I) { - /* default to NICAM audio standard */ - params->std = V4L2_STD_PAL_I | V4L2_STD_NICAM; - if (audio_std & XC4000_AUDIO_STD_MONO) - priv->video_standard = XC4000_I_PAL_NICAM_MONO; - else - priv->video_standard = XC4000_I_PAL_NICAM; - goto tune_channel; - } - - if (params->std & V4L2_STD_PAL_DK) { - params->std = V4L2_STD_PAL_DK; - if (audio_std & XC4000_AUDIO_STD_MONO) { - priv->video_standard = XC4000_DK_PAL_MONO; - } else if (audio_std & XC4000_AUDIO_STD_A2) { - params->std |= V4L2_STD_A2; - priv->video_standard = XC4000_DK_PAL_A2; - } else { - params->std |= V4L2_STD_NICAM; - priv->video_standard = XC4000_DK_PAL_NICAM; - } - goto tune_channel; - } - - if (params->std & V4L2_STD_SECAM_DK) { - /* default to A2 audio standard */ - params->std = V4L2_STD_SECAM_DK | V4L2_STD_A2; - if (audio_std & XC4000_AUDIO_STD_L) { - type = 0; - priv->video_standard = XC4000_DK_SECAM_NICAM; - } else if (audio_std & XC4000_AUDIO_STD_MONO) { - priv->video_standard = XC4000_DK_SECAM_A2MONO; - } else if (audio_std & XC4000_AUDIO_STD_K3) { - params->std |= V4L2_STD_SECAM_K3; - priv->video_standard = XC4000_DK_SECAM_A2LDK3; - } else { - priv->video_standard = XC4000_DK_SECAM_A2DK1; - } - goto tune_channel; - } - - if (params->std & V4L2_STD_SECAM_L) { - /* default to NICAM audio standard */ - type = 0; - params->std = V4L2_STD_SECAM_L | V4L2_STD_NICAM; - priv->video_standard = XC4000_L_SECAM_NICAM; - goto tune_channel; - } - - if (params->std & V4L2_STD_SECAM_LC) { - /* default to NICAM audio standard */ - type = 0; - params->std = V4L2_STD_SECAM_LC | V4L2_STD_NICAM; - priv->video_standard = XC4000_LC_SECAM_NICAM; - goto tune_channel; - } - -tune_channel: - /* FIXME: it could be air. */ - priv->rf_mode = XC_RF_MODE_CABLE; - - if (check_firmware(fe, type, params->std, - xc4000_standard[priv->video_standard].int_freq) != 0) - goto fail; - - ret = xc_set_signal_source(priv, priv->rf_mode); - if (ret != 0) { - printk(KERN_ERR - "xc4000: xc_set_signal_source(%d) failed\n", - priv->rf_mode); - goto fail; - } else { - u16 video_mode, audio_mode; - video_mode = xc4000_standard[priv->video_standard].video_mode; - audio_mode = xc4000_standard[priv->video_standard].audio_mode; - if (priv->video_standard < XC4000_BG_PAL_A2) { - if (type & NOGD) - video_mode &= 0xFF7F; - } else if (priv->video_standard < XC4000_I_PAL_NICAM) { - if (priv->firm_version == 0x0102) - video_mode &= 0xFEFF; - if (audio_std & XC4000_AUDIO_STD_B) - video_mode |= 0x0080; - } - ret = xc_set_tv_standard(priv, video_mode, audio_mode); - if (ret != 0) { - printk(KERN_ERR "xc4000: xc_set_tv_standard failed\n"); - goto fail; - } - } - - if (xc_write_reg(priv, XREG_D_CODE, 0) == 0) - ret = 0; - if (xc_write_reg(priv, XREG_AMPLITUDE, 1) != 0) - ret = -EREMOTEIO; - if (priv->set_smoothedcvbs != 0) { - if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0) - ret = -EREMOTEIO; - } - if (ret != 0) { - printk(KERN_ERR "xc4000: setting registers failed\n"); - goto fail; - } - - xc_tune_channel(priv, priv->freq_hz); - - ret = 0; - -fail: - mutex_unlock(&priv->lock); - - return ret; -} - -static int xc4000_get_signal(struct dvb_frontend *fe, u16 *strength) -{ - struct xc4000_priv *priv = fe->tuner_priv; - u16 value = 0; - int rc; - - mutex_lock(&priv->lock); - rc = xc4000_readreg(priv, XREG_SIGNAL_LEVEL, &value); - mutex_unlock(&priv->lock); - - if (rc < 0) - goto ret; - - /* Informations from real testing of DVB-T and radio part, - coeficient for one dB is 0xff. - */ - tuner_dbg("Signal strength: -%ddB (%05d)\n", value >> 8, value); - - /* all known digital modes */ - if ((priv->video_standard == XC4000_DTV6) || - (priv->video_standard == XC4000_DTV7) || - (priv->video_standard == XC4000_DTV7_8) || - (priv->video_standard == XC4000_DTV8)) - goto digital; - - /* Analog mode has NOISE LEVEL important, signal - depends only on gain of antenna and amplifiers, - but it doesn't tell anything about real quality - of reception. - */ - mutex_lock(&priv->lock); - rc = xc4000_readreg(priv, XREG_NOISE_LEVEL, &value); - mutex_unlock(&priv->lock); - - tuner_dbg("Noise level: %ddB (%05d)\n", value >> 8, value); - - /* highest noise level: 32dB */ - if (value >= 0x2000) { - value = 0; - } else { - value = ~value << 3; - } - - goto ret; - - /* Digital mode has SIGNAL LEVEL important and real - noise level is stored in demodulator registers. - */ -digital: - /* best signal: -50dB */ - if (value <= 0x3200) { - value = 0xffff; - /* minimum: -114dB - should be 0x7200 but real zero is 0x713A */ - } else if (value >= 0x713A) { - value = 0; - } else { - value = ~(value - 0x3200) << 2; - } - -ret: - *strength = value; - - return rc; -} - -static int xc4000_get_frequency(struct dvb_frontend *fe, u32 *freq) -{ - struct xc4000_priv *priv = fe->tuner_priv; - - *freq = priv->freq_hz; - - if (debug) { - mutex_lock(&priv->lock); - if ((priv->cur_fw.type - & (BASE | FM | DTV6 | DTV7 | DTV78 | DTV8)) == BASE) { - u16 snr = 0; - if (xc4000_readreg(priv, XREG_SNR, &snr) == 0) { - mutex_unlock(&priv->lock); - dprintk(1, "%s() freq = %u, SNR = %d\n", - __func__, *freq, snr); - return 0; - } - } - mutex_unlock(&priv->lock); - } - - dprintk(1, "%s()\n", __func__); - - 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; - - mutex_lock(&priv->lock); - - if (priv->cur_fw.type & BASE) - xc_get_lock_status(priv, &lock_status); - - *status = (lock_status == 1 ? - TUNER_STATUS_LOCKED | TUNER_STATUS_STEREO : 0); - if (priv->cur_fw.type & (DTV6 | DTV7 | DTV78 | DTV8)) - *status &= (~TUNER_STATUS_STEREO); - - mutex_unlock(&priv->lock); - - dprintk(2, "%s() lock_status = %d\n", __func__, lock_status); - - return 0; -} - -static int xc4000_sleep(struct dvb_frontend *fe) -{ - struct xc4000_priv *priv = fe->tuner_priv; - int ret = 0; - - dprintk(1, "%s()\n", __func__); - - mutex_lock(&priv->lock); - - /* Avoid firmware reload on slow devices */ - if ((no_poweroff == 2 || - (no_poweroff == 0 && priv->default_pm != 0)) && - (priv->cur_fw.type & BASE) != 0) { - /* force reset and firmware reload */ - priv->cur_fw.type = XC_POWERED_DOWN; - - if (xc_write_reg(priv, XREG_POWER_DOWN, 0) != 0) { - printk(KERN_ERR - "xc4000: %s() unable to shutdown tuner\n", - __func__); - ret = -EREMOTEIO; - } - msleep(20); - } - - mutex_unlock(&priv->lock); - - return ret; -} - -static int xc4000_init(struct dvb_frontend *fe) -{ - dprintk(1, "%s()\n", __func__); - - 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_rf_strength = xc4000_get_signal, - .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 = 6000000; - /* set default configuration */ - priv->if_khz = 4560; - priv->default_pm = 0; - priv->dvb_amplitude = 134; - priv->set_smoothedcvbs = 1; - mutex_init(&priv->lock); - fe->tuner_priv = priv; - break; - default: - /* existing tuner instance */ - fe->tuner_priv = priv; - break; - } - - if (cfg->if_khz != 0) { - /* copy configuration if provided by the caller */ - priv->if_khz = cfg->if_khz; - priv->default_pm = cfg->default_pm; - priv->dvb_amplitude = cfg->dvb_amplitude; - priv->set_smoothedcvbs = cfg->set_smoothedcvbs; - } - - /* Check if firmware has been loaded. It is possible that another - instance of the driver has loaded the firmware. - */ - - if (instance == 1) { - if (xc4000_readreg(priv, XREG_PRODUCT_ID, &id) != 0) - goto fail; - } else { - id = ((priv->cur_fw.type & BASE) != 0 ? - priv->hwmodel : XC_PRODUCT_ID_FW_NOT_LOADED); - } - - switch (id) { - case XC_PRODUCT_ID_XC4000: - case XC_PRODUCT_ID_XC4100: - 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)); - - if (instance == 1) { - int ret; - mutex_lock(&priv->lock); - ret = xc4000_fwupload(fe); - mutex_unlock(&priv->lock); - if (ret != 0) - goto fail2; - } - - return fe; -fail: - mutex_unlock(&xc4000_list_mutex); -fail2: - 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"); |
