| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Davide Ferri | 3088 | 37.70% | 1 | 1.28% |
| Devin Heitmueller | 2538 | 30.99% | 9 | 11.54% |
| Istvan Varga | 1720 | 21.00% | 20 | 25.64% |
| Mauro Carvalho Chehab | 356 | 4.35% | 19 | 24.36% |
| Miroslav Slugen | 311 | 3.80% | 1 | 1.28% |
| Michael Ira Krufky | 60 | 0.73% | 7 | 8.97% |
| Gerd Knorr | 34 | 0.42% | 2 | 2.56% |
| Patrick Boettcher | 30 | 0.37% | 3 | 3.85% |
| Olivier Grenie | 24 | 0.29% | 1 | 1.28% |
| Hans Verkuil | 10 | 0.12% | 5 | 6.41% |
| Linus Torvalds (pre-git) | 5 | 0.06% | 2 | 2.56% |
| Fuqian Huang | 3 | 0.04% | 1 | 1.28% |
| Thomas Meyer | 3 | 0.04% | 1 | 1.28% |
| Thomas Gleixner | 2 | 0.02% | 1 | 1.28% |
| Andy Shevchenko | 2 | 0.02% | 1 | 1.28% |
| Max Kellermann | 1 | 0.01% | 1 | 1.28% |
| Adrian Bunk | 1 | 0.01% | 1 | 1.28% |
| ye xingchen | 1 | 0.01% | 1 | 1.28% |
| Ezequiel García | 1 | 0.01% | 1 | 1.28% |
| Total | 8190 | 78 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * 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> */ #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 <media/dvb_frontend.h> #include "xc4000.h" #include "tuner-i2c.h" #include "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, freq_offset; 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" #define XC4000_DEFAULT_FIRMWARE_NEW "dvb-fe-xc4000-1.4.1.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 %*ph\n", 4, buf); } 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]; buf[0] = (regAddr >> 8) & 0xFF; buf[1] = regAddr & 0xFF; buf[2] = (i2cData >> 8) & 0xFF; buf[3] = i2cData & 0xFF; return xc_send_i2c_data(priv, buf, 4); } 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_hz) || (freq_hz < xc4000_tuner_ops.info.frequency_min_hz)) 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; dprintk(1, "Reading custom firmware %s\n", fname); rc = request_firmware(&fw, fname, priv->i2c_props.adap->dev.parent); } else { fname = XC4000_DEFAULT_FIRMWARE_NEW; dprintk(1, "Trying to read firmware %s\n", fname); rc = request_firmware(&fw, fname, priv->i2c_props.adap->dev.parent); if (rc == -ENOENT) { fname = XC4000_DEFAULT_FIRMWARE; dprintk(1, "Trying to read 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; } dprintk(1, "Loading Firmware: %s\n", fname); 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=%zd, expected %d)\n", type, (unsigned long long)id, endp - p, size); goto corrupt; } priv->firm[n].ptr = kmemdup(p, 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); } 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 = 0, hw_minor = 0, fw_major = 0, fw_minor = 0; 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: if (xc4000_readreg(priv, XREG_PRODUCT_ID, &hwmodel) < 0) { printk(KERN_ERR "Unable to read tuner registers.\n"); goto fail; } 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; } priv->cur_fw = new_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_offset = 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_offset = 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_offset = 2250000; } else { priv->freq_offset = 2750000; } priv->video_standard = XC4000_DTV7_8; type = DTV78; } else if (bw <= 6000000) { priv->video_standard = XC4000_DTV6; priv->freq_offset = 1750000; type = DTV6; } else if (bw <= 7000000) { priv->video_standard = XC4000_DTV7; priv->freq_offset = 2250000; type = DTV7; } else { priv->video_standard = XC4000_DTV8; priv->freq_offset = 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; } priv->freq_hz = c->frequency - priv->freq_offset; 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; /* Information from real testing of DVB-T and radio part, coefficient 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) & 0xffff; } 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 + priv->freq_offset; 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 void 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; } static const struct dvb_tuner_ops xc4000_tuner_ops = { .info = { .name = "Xceive XC4000", .frequency_min_hz = 1 * MHz, .frequency_max_hz = 1023 * MHz, .frequency_step_hz = 50 * kHz, }, .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; 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"); MODULE_FIRMWARE(XC4000_DEFAULT_FIRMWARE_NEW); MODULE_FIRMWARE(XC4000_DEFAULT_FIRMWARE);
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