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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Driver for Xceive XC4000 "QAM/8VSB single chip tuner"4 *5 * Copyright (c) 2007 Xceive Corporation6 * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>7 * Copyright (c) 2009 Devin Heitmueller <dheitmueller@kernellabs.com>8 * Copyright (c) 2009 Davide Ferri <d.ferri@zero11.it>9 * Copyright (c) 2010 Istvan Varga <istvan_v@mailbox.hu>10 */11 12#include <linux/module.h>13#include <linux/moduleparam.h>14#include <linux/videodev2.h>15#include <linux/delay.h>16#include <linux/dvb/frontend.h>17#include <linux/i2c.h>18#include <linux/mutex.h>19#include <linux/unaligned.h>20 21#include <media/dvb_frontend.h>22 23#include "xc4000.h"24#include "tuner-i2c.h"25#include "xc2028-types.h"26 27static int debug;28module_param(debug, int, 0644);29MODULE_PARM_DESC(debug, "Debugging level (0 to 2, default: 0 (off)).");30 31static int no_poweroff;32module_param(no_poweroff, int, 0644);33MODULE_PARM_DESC(no_poweroff, "Power management (1: disabled, 2: enabled, 0 (default): use device-specific default mode).");34 35static int audio_std;36module_param(audio_std, int, 0644);37MODULE_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"38 " 1: use NICAM/B or A2/B instead of NICAM/A or A2/A\n"39 " 2: use A2 instead of NICAM or BTSC\n"40 " 4: use SECAM/K3 instead of K1\n"41 " 8: use PAL-D/K audio for SECAM-D/K\n"42 "16: use FM radio input 1 instead of input 2\n"43 "32: use mono audio (the lower three bits are ignored)");44 45static char firmware_name[30];46module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0);47MODULE_PARM_DESC(firmware_name, "Firmware file name. Allows overriding the default firmware name.");48 49static DEFINE_MUTEX(xc4000_list_mutex);50static LIST_HEAD(hybrid_tuner_instance_list);51 52#define dprintk(level, fmt, arg...) if (debug >= level) \53 printk(KERN_INFO "%s: " fmt, "xc4000", ## arg)54 55/* struct for storing firmware table */56struct firmware_description {57 unsigned int type;58 v4l2_std_id id;59 __u16 int_freq;60 unsigned char *ptr;61 unsigned int size;62};63 64struct firmware_properties {65 unsigned int type;66 v4l2_std_id id;67 v4l2_std_id std_req;68 __u16 int_freq;69 unsigned int scode_table;70 int scode_nr;71};72 73struct xc4000_priv {74 struct tuner_i2c_props i2c_props;75 struct list_head hybrid_tuner_instance_list;76 struct firmware_description *firm;77 int firm_size;78 u32 if_khz;79 u32 freq_hz, freq_offset;80 u32 bandwidth;81 u8 video_standard;82 u8 rf_mode;83 u8 default_pm;84 u8 dvb_amplitude;85 u8 set_smoothedcvbs;86 u8 ignore_i2c_write_errors;87 __u16 firm_version;88 struct firmware_properties cur_fw;89 __u16 hwmodel;90 __u16 hwvers;91 struct mutex lock;92};93 94#define XC4000_AUDIO_STD_B 195#define XC4000_AUDIO_STD_A2 296#define XC4000_AUDIO_STD_K3 497#define XC4000_AUDIO_STD_L 898#define XC4000_AUDIO_STD_INPUT1 1699#define XC4000_AUDIO_STD_MONO 32100 101#define XC4000_DEFAULT_FIRMWARE "dvb-fe-xc4000-1.4.fw"102#define XC4000_DEFAULT_FIRMWARE_NEW "dvb-fe-xc4000-1.4.1.fw"103 104/* Misc Defines */105#define MAX_TV_STANDARD 24106#define XC_MAX_I2C_WRITE_LENGTH 64107#define XC_POWERED_DOWN 0x80000000U108 109/* Signal Types */110#define XC_RF_MODE_AIR 0111#define XC_RF_MODE_CABLE 1112 113/* Product id */114#define XC_PRODUCT_ID_FW_NOT_LOADED 0x2000115#define XC_PRODUCT_ID_XC4000 0x0FA0116#define XC_PRODUCT_ID_XC4100 0x1004117 118/* Registers (Write-only) */119#define XREG_INIT 0x00120#define XREG_VIDEO_MODE 0x01121#define XREG_AUDIO_MODE 0x02122#define XREG_RF_FREQ 0x03123#define XREG_D_CODE 0x04124#define XREG_DIRECTSITTING_MODE 0x05125#define XREG_SEEK_MODE 0x06126#define XREG_POWER_DOWN 0x08127#define XREG_SIGNALSOURCE 0x0A128#define XREG_SMOOTHEDCVBS 0x0E129#define XREG_AMPLITUDE 0x10130 131/* Registers (Read-only) */132#define XREG_ADC_ENV 0x00133#define XREG_QUALITY 0x01134#define XREG_FRAME_LINES 0x02135#define XREG_HSYNC_FREQ 0x03136#define XREG_LOCK 0x04137#define XREG_FREQ_ERROR 0x05138#define XREG_SNR 0x06139#define XREG_VERSION 0x07140#define XREG_PRODUCT_ID 0x08141#define XREG_SIGNAL_LEVEL 0x0A142#define XREG_NOISE_LEVEL 0x0B143 144/*145 Basic firmware description. This will remain with146 the driver for documentation purposes.147 148 This represents an I2C firmware file encoded as a149 string of unsigned char. Format is as follows:150 151 char[0 ]=len0_MSB -> len = len_MSB * 256 + len_LSB152 char[1 ]=len0_LSB -> length of first write transaction153 char[2 ]=data0 -> first byte to be sent154 char[3 ]=data1155 char[4 ]=data2156 char[ ]=...157 char[M ]=dataN -> last byte to be sent158 char[M+1]=len1_MSB -> len = len_MSB * 256 + len_LSB159 char[M+2]=len1_LSB -> length of second write transaction160 char[M+3]=data0161 char[M+4]=data1162 ...163 etc.164 165 The [len] value should be interpreted as follows:166 167 len= len_MSB _ len_LSB168 len=1111_1111_1111_1111 : End of I2C_SEQUENCE169 len=0000_0000_0000_0000 : Reset command: Do hardware reset170 len=0NNN_NNNN_NNNN_NNNN : Normal transaction: number of bytes = {1:32767)171 len=1WWW_WWWW_WWWW_WWWW : Wait command: wait for {1:32767} ms172 173 For the RESET and WAIT commands, the two following bytes will contain174 immediately the length of the following transaction.175*/176 177struct XC_TV_STANDARD {178 const char *Name;179 u16 audio_mode;180 u16 video_mode;181 u16 int_freq;182};183 184/* Tuner standards */185#define XC4000_MN_NTSC_PAL_BTSC 0186#define XC4000_MN_NTSC_PAL_A2 1187#define XC4000_MN_NTSC_PAL_EIAJ 2188#define XC4000_MN_NTSC_PAL_Mono 3189#define XC4000_BG_PAL_A2 4190#define XC4000_BG_PAL_NICAM 5191#define XC4000_BG_PAL_MONO 6192#define XC4000_I_PAL_NICAM 7193#define XC4000_I_PAL_NICAM_MONO 8194#define XC4000_DK_PAL_A2 9195#define XC4000_DK_PAL_NICAM 10196#define XC4000_DK_PAL_MONO 11197#define XC4000_DK_SECAM_A2DK1 12198#define XC4000_DK_SECAM_A2LDK3 13199#define XC4000_DK_SECAM_A2MONO 14200#define XC4000_DK_SECAM_NICAM 15201#define XC4000_L_SECAM_NICAM 16202#define XC4000_LC_SECAM_NICAM 17203#define XC4000_DTV6 18204#define XC4000_DTV8 19205#define XC4000_DTV7_8 20206#define XC4000_DTV7 21207#define XC4000_FM_Radio_INPUT2 22208#define XC4000_FM_Radio_INPUT1 23209 210static struct XC_TV_STANDARD xc4000_standard[MAX_TV_STANDARD] = {211 {"M/N-NTSC/PAL-BTSC", 0x0000, 0x80A0, 4500},212 {"M/N-NTSC/PAL-A2", 0x0000, 0x80A0, 4600},213 {"M/N-NTSC/PAL-EIAJ", 0x0040, 0x80A0, 4500},214 {"M/N-NTSC/PAL-Mono", 0x0078, 0x80A0, 4500},215 {"B/G-PAL-A2", 0x0000, 0x8159, 5640},216 {"B/G-PAL-NICAM", 0x0004, 0x8159, 5740},217 {"B/G-PAL-MONO", 0x0078, 0x8159, 5500},218 {"I-PAL-NICAM", 0x0080, 0x8049, 6240},219 {"I-PAL-NICAM-MONO", 0x0078, 0x8049, 6000},220 {"D/K-PAL-A2", 0x0000, 0x8049, 6380},221 {"D/K-PAL-NICAM", 0x0080, 0x8049, 6200},222 {"D/K-PAL-MONO", 0x0078, 0x8049, 6500},223 {"D/K-SECAM-A2 DK1", 0x0000, 0x8049, 6340},224 {"D/K-SECAM-A2 L/DK3", 0x0000, 0x8049, 6000},225 {"D/K-SECAM-A2 MONO", 0x0078, 0x8049, 6500},226 {"D/K-SECAM-NICAM", 0x0080, 0x8049, 6200},227 {"L-SECAM-NICAM", 0x8080, 0x0009, 6200},228 {"L'-SECAM-NICAM", 0x8080, 0x4009, 6200},229 {"DTV6", 0x00C0, 0x8002, 0},230 {"DTV8", 0x00C0, 0x800B, 0},231 {"DTV7/8", 0x00C0, 0x801B, 0},232 {"DTV7", 0x00C0, 0x8007, 0},233 {"FM Radio-INPUT2", 0x0008, 0x9800, 10700},234 {"FM Radio-INPUT1", 0x0008, 0x9000, 10700}235};236 237static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val);238static int xc4000_tuner_reset(struct dvb_frontend *fe);239static void xc_debug_dump(struct xc4000_priv *priv);240 241static int xc_send_i2c_data(struct xc4000_priv *priv, u8 *buf, int len)242{243 struct i2c_msg msg = { .addr = priv->i2c_props.addr,244 .flags = 0, .buf = buf, .len = len };245 if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) {246 if (priv->ignore_i2c_write_errors == 0) {247 printk(KERN_ERR "xc4000: I2C write failed (len=%i)\n",248 len);249 if (len == 4) {250 printk(KERN_ERR "bytes %*ph\n", 4, buf);251 }252 return -EREMOTEIO;253 }254 }255 return 0;256}257 258static int xc4000_tuner_reset(struct dvb_frontend *fe)259{260 struct xc4000_priv *priv = fe->tuner_priv;261 int ret;262 263 dprintk(1, "%s()\n", __func__);264 265 if (fe->callback) {266 ret = fe->callback(((fe->dvb) && (fe->dvb->priv)) ?267 fe->dvb->priv :268 priv->i2c_props.adap->algo_data,269 DVB_FRONTEND_COMPONENT_TUNER,270 XC4000_TUNER_RESET, 0);271 if (ret) {272 printk(KERN_ERR "xc4000: reset failed\n");273 return -EREMOTEIO;274 }275 } else {276 printk(KERN_ERR "xc4000: no tuner reset callback function, fatal\n");277 return -EINVAL;278 }279 return 0;280}281 282static int xc_write_reg(struct xc4000_priv *priv, u16 regAddr, u16 i2cData)283{284 u8 buf[4];285 286 buf[0] = (regAddr >> 8) & 0xFF;287 buf[1] = regAddr & 0xFF;288 buf[2] = (i2cData >> 8) & 0xFF;289 buf[3] = i2cData & 0xFF;290 291 return xc_send_i2c_data(priv, buf, 4);292}293 294static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence)295{296 struct xc4000_priv *priv = fe->tuner_priv;297 298 int i, nbytes_to_send, result;299 unsigned int len, pos, index;300 u8 buf[XC_MAX_I2C_WRITE_LENGTH];301 302 index = 0;303 while ((i2c_sequence[index] != 0xFF) ||304 (i2c_sequence[index + 1] != 0xFF)) {305 len = i2c_sequence[index] * 256 + i2c_sequence[index+1];306 if (len == 0x0000) {307 /* RESET command */308 /* NOTE: this is ignored, as the reset callback was */309 /* already called by check_firmware() */310 index += 2;311 } else if (len & 0x8000) {312 /* WAIT command */313 msleep(len & 0x7FFF);314 index += 2;315 } else {316 /* Send i2c data whilst ensuring individual transactions317 * do not exceed XC_MAX_I2C_WRITE_LENGTH bytes.318 */319 index += 2;320 buf[0] = i2c_sequence[index];321 buf[1] = i2c_sequence[index + 1];322 pos = 2;323 while (pos < len) {324 if ((len - pos) > XC_MAX_I2C_WRITE_LENGTH - 2)325 nbytes_to_send =326 XC_MAX_I2C_WRITE_LENGTH;327 else328 nbytes_to_send = (len - pos + 2);329 for (i = 2; i < nbytes_to_send; i++) {330 buf[i] = i2c_sequence[index + pos +331 i - 2];332 }333 result = xc_send_i2c_data(priv, buf,334 nbytes_to_send);335 336 if (result != 0)337 return result;338 339 pos += nbytes_to_send - 2;340 }341 index += len;342 }343 }344 return 0;345}346 347static int xc_set_tv_standard(struct xc4000_priv *priv,348 u16 video_mode, u16 audio_mode)349{350 int ret;351 dprintk(1, "%s(0x%04x,0x%04x)\n", __func__, video_mode, audio_mode);352 dprintk(1, "%s() Standard = %s\n",353 __func__,354 xc4000_standard[priv->video_standard].Name);355 356 /* Don't complain when the request fails because of i2c stretching */357 priv->ignore_i2c_write_errors = 1;358 359 ret = xc_write_reg(priv, XREG_VIDEO_MODE, video_mode);360 if (ret == 0)361 ret = xc_write_reg(priv, XREG_AUDIO_MODE, audio_mode);362 363 priv->ignore_i2c_write_errors = 0;364 365 return ret;366}367 368static int xc_set_signal_source(struct xc4000_priv *priv, u16 rf_mode)369{370 dprintk(1, "%s(%d) Source = %s\n", __func__, rf_mode,371 rf_mode == XC_RF_MODE_AIR ? "ANTENNA" : "CABLE");372 373 if ((rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE)) {374 rf_mode = XC_RF_MODE_CABLE;375 printk(KERN_ERR376 "%s(), Invalid mode, defaulting to CABLE",377 __func__);378 }379 return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode);380}381 382static const struct dvb_tuner_ops xc4000_tuner_ops;383 384static int xc_set_rf_frequency(struct xc4000_priv *priv, u32 freq_hz)385{386 u16 freq_code;387 388 dprintk(1, "%s(%u)\n", __func__, freq_hz);389 390 if ((freq_hz > xc4000_tuner_ops.info.frequency_max_hz) ||391 (freq_hz < xc4000_tuner_ops.info.frequency_min_hz))392 return -EINVAL;393 394 freq_code = (u16)(freq_hz / 15625);395 396 /* WAS: Starting in firmware version 1.1.44, Xceive recommends using the397 FINERFREQ for all normal tuning (the doc indicates reg 0x03 should398 only be used for fast scanning for channel lock) */399 /* WAS: XREG_FINERFREQ */400 return xc_write_reg(priv, XREG_RF_FREQ, freq_code);401}402 403static int xc_get_adc_envelope(struct xc4000_priv *priv, u16 *adc_envelope)404{405 return xc4000_readreg(priv, XREG_ADC_ENV, adc_envelope);406}407 408static int xc_get_frequency_error(struct xc4000_priv *priv, u32 *freq_error_hz)409{410 int result;411 u16 regData;412 u32 tmp;413 414 result = xc4000_readreg(priv, XREG_FREQ_ERROR, ®Data);415 if (result != 0)416 return result;417 418 tmp = (u32)regData & 0xFFFFU;419 tmp = (tmp < 0x8000U ? tmp : 0x10000U - tmp);420 (*freq_error_hz) = tmp * 15625;421 return result;422}423 424static int xc_get_lock_status(struct xc4000_priv *priv, u16 *lock_status)425{426 return xc4000_readreg(priv, XREG_LOCK, lock_status);427}428 429static int xc_get_version(struct xc4000_priv *priv,430 u8 *hw_majorversion, u8 *hw_minorversion,431 u8 *fw_majorversion, u8 *fw_minorversion)432{433 u16 data;434 int result;435 436 result = xc4000_readreg(priv, XREG_VERSION, &data);437 if (result != 0)438 return result;439 440 (*hw_majorversion) = (data >> 12) & 0x0F;441 (*hw_minorversion) = (data >> 8) & 0x0F;442 (*fw_majorversion) = (data >> 4) & 0x0F;443 (*fw_minorversion) = data & 0x0F;444 445 return 0;446}447 448static int xc_get_hsync_freq(struct xc4000_priv *priv, u32 *hsync_freq_hz)449{450 u16 regData;451 int result;452 453 result = xc4000_readreg(priv, XREG_HSYNC_FREQ, ®Data);454 if (result != 0)455 return result;456 457 (*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100;458 return result;459}460 461static int xc_get_frame_lines(struct xc4000_priv *priv, u16 *frame_lines)462{463 return xc4000_readreg(priv, XREG_FRAME_LINES, frame_lines);464}465 466static int xc_get_quality(struct xc4000_priv *priv, u16 *quality)467{468 return xc4000_readreg(priv, XREG_QUALITY, quality);469}470 471static int xc_get_signal_level(struct xc4000_priv *priv, u16 *signal)472{473 return xc4000_readreg(priv, XREG_SIGNAL_LEVEL, signal);474}475 476static int xc_get_noise_level(struct xc4000_priv *priv, u16 *noise)477{478 return xc4000_readreg(priv, XREG_NOISE_LEVEL, noise);479}480 481static u16 xc_wait_for_lock(struct xc4000_priv *priv)482{483 u16 lock_state = 0;484 int watchdog_count = 40;485 486 while ((lock_state == 0) && (watchdog_count > 0)) {487 xc_get_lock_status(priv, &lock_state);488 if (lock_state != 1) {489 msleep(5);490 watchdog_count--;491 }492 }493 return lock_state;494}495 496static int xc_tune_channel(struct xc4000_priv *priv, u32 freq_hz)497{498 int found = 1;499 int result;500 501 dprintk(1, "%s(%u)\n", __func__, freq_hz);502 503 /* Don't complain when the request fails because of i2c stretching */504 priv->ignore_i2c_write_errors = 1;505 result = xc_set_rf_frequency(priv, freq_hz);506 priv->ignore_i2c_write_errors = 0;507 508 if (result != 0)509 return 0;510 511 /* wait for lock only in analog TV mode */512 if ((priv->cur_fw.type & (FM | DTV6 | DTV7 | DTV78 | DTV8)) == 0) {513 if (xc_wait_for_lock(priv) != 1)514 found = 0;515 }516 517 /* Wait for stats to stabilize.518 * Frame Lines needs two frame times after initial lock519 * before it is valid.520 */521 msleep(debug ? 100 : 10);522 523 if (debug)524 xc_debug_dump(priv);525 526 return found;527}528 529static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val)530{531 u8 buf[2] = { reg >> 8, reg & 0xff };532 u8 bval[2] = { 0, 0 };533 struct i2c_msg msg[2] = {534 { .addr = priv->i2c_props.addr,535 .flags = 0, .buf = &buf[0], .len = 2 },536 { .addr = priv->i2c_props.addr,537 .flags = I2C_M_RD, .buf = &bval[0], .len = 2 },538 };539 540 if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) {541 printk(KERN_ERR "xc4000: I2C read failed\n");542 return -EREMOTEIO;543 }544 545 *val = (bval[0] << 8) | bval[1];546 return 0;547}548 549#define dump_firm_type(t) dump_firm_type_and_int_freq(t, 0)550static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq)551{552 if (type & BASE)553 printk(KERN_CONT "BASE ");554 if (type & INIT1)555 printk(KERN_CONT "INIT1 ");556 if (type & F8MHZ)557 printk(KERN_CONT "F8MHZ ");558 if (type & MTS)559 printk(KERN_CONT "MTS ");560 if (type & D2620)561 printk(KERN_CONT "D2620 ");562 if (type & D2633)563 printk(KERN_CONT "D2633 ");564 if (type & DTV6)565 printk(KERN_CONT "DTV6 ");566 if (type & QAM)567 printk(KERN_CONT "QAM ");568 if (type & DTV7)569 printk(KERN_CONT "DTV7 ");570 if (type & DTV78)571 printk(KERN_CONT "DTV78 ");572 if (type & DTV8)573 printk(KERN_CONT "DTV8 ");574 if (type & FM)575 printk(KERN_CONT "FM ");576 if (type & INPUT1)577 printk(KERN_CONT "INPUT1 ");578 if (type & LCD)579 printk(KERN_CONT "LCD ");580 if (type & NOGD)581 printk(KERN_CONT "NOGD ");582 if (type & MONO)583 printk(KERN_CONT "MONO ");584 if (type & ATSC)585 printk(KERN_CONT "ATSC ");586 if (type & IF)587 printk(KERN_CONT "IF ");588 if (type & LG60)589 printk(KERN_CONT "LG60 ");590 if (type & ATI638)591 printk(KERN_CONT "ATI638 ");592 if (type & OREN538)593 printk(KERN_CONT "OREN538 ");594 if (type & OREN36)595 printk(KERN_CONT "OREN36 ");596 if (type & TOYOTA388)597 printk(KERN_CONT "TOYOTA388 ");598 if (type & TOYOTA794)599 printk(KERN_CONT "TOYOTA794 ");600 if (type & DIBCOM52)601 printk(KERN_CONT "DIBCOM52 ");602 if (type & ZARLINK456)603 printk(KERN_CONT "ZARLINK456 ");604 if (type & CHINA)605 printk(KERN_CONT "CHINA ");606 if (type & F6MHZ)607 printk(KERN_CONT "F6MHZ ");608 if (type & INPUT2)609 printk(KERN_CONT "INPUT2 ");610 if (type & SCODE)611 printk(KERN_CONT "SCODE ");612 if (type & HAS_IF)613 printk(KERN_CONT "HAS_IF_%d ", int_freq);614}615 616static int seek_firmware(struct dvb_frontend *fe, unsigned int type,617 v4l2_std_id *id)618{619 struct xc4000_priv *priv = fe->tuner_priv;620 int i, best_i = -1;621 unsigned int best_nr_diffs = 255U;622 623 if (!priv->firm) {624 printk(KERN_ERR "Error! firmware not loaded\n");625 return -EINVAL;626 }627 628 if (((type & ~SCODE) == 0) && (*id == 0))629 *id = V4L2_STD_PAL;630 631 /* Seek for generic video standard match */632 for (i = 0; i < priv->firm_size; i++) {633 v4l2_std_id id_diff_mask =634 (priv->firm[i].id ^ (*id)) & (*id);635 unsigned int type_diff_mask =636 (priv->firm[i].type ^ type)637 & (BASE_TYPES | DTV_TYPES | LCD | NOGD | MONO | SCODE);638 unsigned int nr_diffs;639 640 if (type_diff_mask641 & (BASE | INIT1 | FM | DTV6 | DTV7 | DTV78 | DTV8 | SCODE))642 continue;643 644 nr_diffs = hweight64(id_diff_mask) + hweight32(type_diff_mask);645 if (!nr_diffs) /* Supports all the requested standards */646 goto found;647 648 if (nr_diffs < best_nr_diffs) {649 best_nr_diffs = nr_diffs;650 best_i = i;651 }652 }653 654 /* FIXME: Would make sense to seek for type "hint" match ? */655 if (best_i < 0) {656 i = -ENOENT;657 goto ret;658 }659 660 if (best_nr_diffs > 0U) {661 printk(KERN_WARNING662 "Selecting best matching firmware (%u bits differ) for type=(%x), id %016llx:\n",663 best_nr_diffs, type, (unsigned long long)*id);664 i = best_i;665 }666 667found:668 *id = priv->firm[i].id;669 670ret:671 if (debug) {672 printk(KERN_DEBUG "%s firmware for type=",673 (i < 0) ? "Can't find" : "Found");674 dump_firm_type(type);675 printk(KERN_DEBUG "(%x), id %016llx.\n", type, (unsigned long long)*id);676 }677 return i;678}679 680static int load_firmware(struct dvb_frontend *fe, unsigned int type,681 v4l2_std_id *id)682{683 struct xc4000_priv *priv = fe->tuner_priv;684 int pos, rc;685 unsigned char *p;686 687 pos = seek_firmware(fe, type, id);688 if (pos < 0)689 return pos;690 691 p = priv->firm[pos].ptr;692 693 /* Don't complain when the request fails because of i2c stretching */694 priv->ignore_i2c_write_errors = 1;695 696 rc = xc_load_i2c_sequence(fe, p);697 698 priv->ignore_i2c_write_errors = 0;699 700 return rc;701}702 703static int xc4000_fwupload(struct dvb_frontend *fe)704{705 struct xc4000_priv *priv = fe->tuner_priv;706 const struct firmware *fw = NULL;707 const unsigned char *p, *endp;708 int rc = 0;709 int n, n_array;710 char name[33];711 const char *fname;712 713 if (firmware_name[0] != '\0') {714 fname = firmware_name;715 716 dprintk(1, "Reading custom firmware %s\n", fname);717 rc = request_firmware(&fw, fname,718 priv->i2c_props.adap->dev.parent);719 } else {720 fname = XC4000_DEFAULT_FIRMWARE_NEW;721 dprintk(1, "Trying to read firmware %s\n", fname);722 rc = request_firmware(&fw, fname,723 priv->i2c_props.adap->dev.parent);724 if (rc == -ENOENT) {725 fname = XC4000_DEFAULT_FIRMWARE;726 dprintk(1, "Trying to read firmware %s\n", fname);727 rc = request_firmware(&fw, fname,728 priv->i2c_props.adap->dev.parent);729 }730 }731 732 if (rc < 0) {733 if (rc == -ENOENT)734 printk(KERN_ERR "Error: firmware %s not found.\n", fname);735 else736 printk(KERN_ERR "Error %d while requesting firmware %s\n",737 rc, fname);738 739 return rc;740 }741 dprintk(1, "Loading Firmware: %s\n", fname);742 743 p = fw->data;744 endp = p + fw->size;745 746 if (fw->size < sizeof(name) - 1 + 2 + 2) {747 printk(KERN_ERR "Error: firmware file %s has invalid size!\n",748 fname);749 goto corrupt;750 }751 752 memcpy(name, p, sizeof(name) - 1);753 name[sizeof(name) - 1] = '\0';754 p += sizeof(name) - 1;755 756 priv->firm_version = get_unaligned_le16(p);757 p += 2;758 759 n_array = get_unaligned_le16(p);760 p += 2;761 762 dprintk(1, "Loading %d firmware images from %s, type: %s, ver %d.%d\n",763 n_array, fname, name,764 priv->firm_version >> 8, priv->firm_version & 0xff);765 766 priv->firm = kcalloc(n_array, sizeof(*priv->firm), GFP_KERNEL);767 if (priv->firm == NULL) {768 printk(KERN_ERR "Not enough memory to load firmware file.\n");769 rc = -ENOMEM;770 goto done;771 }772 priv->firm_size = n_array;773 774 n = -1;775 while (p < endp) {776 __u32 type, size;777 v4l2_std_id id;778 __u16 int_freq = 0;779 780 n++;781 if (n >= n_array) {782 printk(KERN_ERR "More firmware images in file than were expected!\n");783 goto corrupt;784 }785 786 /* Checks if there's enough bytes to read */787 if (endp - p < sizeof(type) + sizeof(id) + sizeof(size))788 goto header;789 790 type = get_unaligned_le32(p);791 p += sizeof(type);792 793 id = get_unaligned_le64(p);794 p += sizeof(id);795 796 if (type & HAS_IF) {797 int_freq = get_unaligned_le16(p);798 p += sizeof(int_freq);799 if (endp - p < sizeof(size))800 goto header;801 }802 803 size = get_unaligned_le32(p);804 p += sizeof(size);805 806 if (!size || size > endp - p) {807 printk(KERN_ERR "Firmware type (%x), id %llx is corrupted (size=%zd, expected %d)\n",808 type, (unsigned long long)id,809 endp - p, size);810 goto corrupt;811 }812 813 priv->firm[n].ptr = kmemdup(p, size, GFP_KERNEL);814 if (priv->firm[n].ptr == NULL) {815 printk(KERN_ERR "Not enough memory to load firmware file.\n");816 rc = -ENOMEM;817 goto done;818 }819 820 if (debug) {821 printk(KERN_DEBUG "Reading firmware type ");822 dump_firm_type_and_int_freq(type, int_freq);823 printk(KERN_DEBUG "(%x), id %llx, size=%d.\n",824 type, (unsigned long long)id, size);825 }826 827 priv->firm[n].type = type;828 priv->firm[n].id = id;829 priv->firm[n].size = size;830 priv->firm[n].int_freq = int_freq;831 832 p += size;833 }834 835 if (n + 1 != priv->firm_size) {836 printk(KERN_ERR "Firmware file is incomplete!\n");837 goto corrupt;838 }839 840 goto done;841 842header:843 printk(KERN_ERR "Firmware header is incomplete!\n");844corrupt:845 rc = -EINVAL;846 printk(KERN_ERR "Error: firmware file is corrupted!\n");847 848done:849 release_firmware(fw);850 if (rc == 0)851 dprintk(1, "Firmware files loaded.\n");852 853 return rc;854}855 856static int load_scode(struct dvb_frontend *fe, unsigned int type,857 v4l2_std_id *id, __u16 int_freq, int scode)858{859 struct xc4000_priv *priv = fe->tuner_priv;860 int pos, rc;861 unsigned char *p;862 u8 scode_buf[13];863 u8 indirect_mode[5];864 865 dprintk(1, "%s called int_freq=%d\n", __func__, int_freq);866 867 if (!int_freq) {868 pos = seek_firmware(fe, type, id);869 if (pos < 0)870 return pos;871 } else {872 for (pos = 0; pos < priv->firm_size; pos++) {873 if ((priv->firm[pos].int_freq == int_freq) &&874 (priv->firm[pos].type & HAS_IF))875 break;876 }877 if (pos == priv->firm_size)878 return -ENOENT;879 }880 881 p = priv->firm[pos].ptr;882 883 if (priv->firm[pos].size != 12 * 16 || scode >= 16)884 return -EINVAL;885 p += 12 * scode;886 887 if (debug) {888 tuner_info("Loading SCODE for type=");889 dump_firm_type_and_int_freq(priv->firm[pos].type,890 priv->firm[pos].int_freq);891 printk(KERN_CONT "(%x), id %016llx.\n", priv->firm[pos].type,892 (unsigned long long)*id);893 }894 895 scode_buf[0] = 0x00;896 memcpy(&scode_buf[1], p, 12);897 898 /* Enter direct-mode */899 rc = xc_write_reg(priv, XREG_DIRECTSITTING_MODE, 0);900 if (rc < 0) {901 printk(KERN_ERR "failed to put device into direct mode!\n");902 return -EIO;903 }904 905 rc = xc_send_i2c_data(priv, scode_buf, 13);906 if (rc != 0) {907 /* Even if the send failed, make sure we set back to indirect908 mode */909 printk(KERN_ERR "Failed to set scode %d\n", rc);910 }911 912 /* Switch back to indirect-mode */913 memset(indirect_mode, 0, sizeof(indirect_mode));914 indirect_mode[4] = 0x88;915 xc_send_i2c_data(priv, indirect_mode, sizeof(indirect_mode));916 msleep(10);917 918 return 0;919}920 921static int check_firmware(struct dvb_frontend *fe, unsigned int type,922 v4l2_std_id std, __u16 int_freq)923{924 struct xc4000_priv *priv = fe->tuner_priv;925 struct firmware_properties new_fw;926 int rc = 0, is_retry = 0;927 u16 hwmodel;928 v4l2_std_id std0;929 u8 hw_major = 0, hw_minor = 0, fw_major = 0, fw_minor = 0;930 931 dprintk(1, "%s called\n", __func__);932 933 if (!priv->firm) {934 rc = xc4000_fwupload(fe);935 if (rc < 0)936 return rc;937 }938 939retry:940 new_fw.type = type;941 new_fw.id = std;942 new_fw.std_req = std;943 new_fw.scode_table = SCODE;944 new_fw.scode_nr = 0;945 new_fw.int_freq = int_freq;946 947 dprintk(1, "checking firmware, user requested type=");948 if (debug) {949 dump_firm_type(new_fw.type);950 printk(KERN_CONT "(%x), id %016llx, ", new_fw.type,951 (unsigned long long)new_fw.std_req);952 if (!int_freq)953 printk(KERN_CONT "scode_tbl ");954 else955 printk(KERN_CONT "int_freq %d, ", new_fw.int_freq);956 printk(KERN_CONT "scode_nr %d\n", new_fw.scode_nr);957 }958 959 /* No need to reload base firmware if it matches */960 if (priv->cur_fw.type & BASE) {961 dprintk(1, "BASE firmware not changed.\n");962 goto skip_base;963 }964 965 /* Updating BASE - forget about all currently loaded firmware */966 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));967 968 /* Reset is needed before loading firmware */969 rc = xc4000_tuner_reset(fe);970 if (rc < 0)971 goto fail;972 973 /* BASE firmwares are all std0 */974 std0 = 0;975 rc = load_firmware(fe, BASE, &std0);976 if (rc < 0) {977 printk(KERN_ERR "Error %d while loading base firmware\n", rc);978 goto fail;979 }980 981 /* Load INIT1, if needed */982 dprintk(1, "Load init1 firmware, if exists\n");983 984 rc = load_firmware(fe, BASE | INIT1, &std0);985 if (rc == -ENOENT)986 rc = load_firmware(fe, BASE | INIT1, &std0);987 if (rc < 0 && rc != -ENOENT) {988 tuner_err("Error %d while loading init1 firmware\n",989 rc);990 goto fail;991 }992 993skip_base:994 /*995 * No need to reload standard specific firmware if base firmware996 * was not reloaded and requested video standards have not changed.997 */998 if (priv->cur_fw.type == (BASE | new_fw.type) &&999 priv->cur_fw.std_req == std) {1000 dprintk(1, "Std-specific firmware already loaded.\n");1001 goto skip_std_specific;1002 }1003 1004 /* Reloading std-specific firmware forces a SCODE update */1005 priv->cur_fw.scode_table = 0;1006 1007 /* Load the standard firmware */1008 rc = load_firmware(fe, new_fw.type, &new_fw.id);1009 1010 if (rc < 0)1011 goto fail;1012 1013skip_std_specific:1014 if (priv->cur_fw.scode_table == new_fw.scode_table &&1015 priv->cur_fw.scode_nr == new_fw.scode_nr) {1016 dprintk(1, "SCODE firmware already loaded.\n");1017 goto check_device;1018 }1019 1020 /* Load SCODE firmware, if exists */1021 rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id,1022 new_fw.int_freq, new_fw.scode_nr);1023 if (rc != 0)1024 dprintk(1, "load scode failed %d\n", rc);1025 1026check_device:1027 if (xc4000_readreg(priv, XREG_PRODUCT_ID, &hwmodel) < 0) {1028 printk(KERN_ERR "Unable to read tuner registers.\n");1029 goto fail;1030 }1031 1032 if (xc_get_version(priv, &hw_major, &hw_minor, &fw_major,1033 &fw_minor) != 0) {1034 printk(KERN_ERR "Unable to read tuner registers.\n");1035 goto fail;1036 }1037 1038 dprintk(1, "Device is Xceive %d version %d.%d, firmware version %d.%d\n",1039 hwmodel, hw_major, hw_minor, fw_major, fw_minor);1040 1041 /* Check firmware version against what we downloaded. */1042 if (priv->firm_version != ((fw_major << 8) | fw_minor)) {1043 printk(KERN_WARNING1044 "Incorrect readback of firmware version %d.%d.\n",1045 fw_major, fw_minor);1046 goto fail;1047 }1048 1049 /* Check that the tuner hardware model remains consistent over time. */1050 if (priv->hwmodel == 0 &&1051 (hwmodel == XC_PRODUCT_ID_XC4000 ||1052 hwmodel == XC_PRODUCT_ID_XC4100)) {1053 priv->hwmodel = hwmodel;1054 priv->hwvers = (hw_major << 8) | hw_minor;1055 } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel ||1056 priv->hwvers != ((hw_major << 8) | hw_minor)) {1057 printk(KERN_WARNING1058 "Read invalid device hardware information - tuner hung?\n");1059 goto fail;1060 }1061 1062 priv->cur_fw = new_fw;1063 1064 /*1065 * By setting BASE in cur_fw.type only after successfully loading all1066 * firmwares, we can:1067 * 1. Identify that BASE firmware with type=0 has been loaded;1068 * 2. Tell whether BASE firmware was just changed the next time through.1069 */1070 priv->cur_fw.type |= BASE;1071 1072 return 0;1073 1074fail:1075 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));1076 if (!is_retry) {1077 msleep(50);1078 is_retry = 1;1079 dprintk(1, "Retrying firmware load\n");1080 goto retry;1081 }1082 1083 if (rc == -ENOENT)1084 rc = -EINVAL;1085 return rc;1086}1087 1088static void xc_debug_dump(struct xc4000_priv *priv)1089{1090 u16 adc_envelope;1091 u32 freq_error_hz = 0;1092 u16 lock_status;1093 u32 hsync_freq_hz = 0;1094 u16 frame_lines;1095 u16 quality;1096 u16 signal = 0;1097 u16 noise = 0;1098 u8 hw_majorversion = 0, hw_minorversion = 0;1099 u8 fw_majorversion = 0, fw_minorversion = 0;1100 1101 xc_get_adc_envelope(priv, &adc_envelope);1102 dprintk(1, "*** ADC envelope (0-1023) = %d\n", adc_envelope);1103 1104 xc_get_frequency_error(priv, &freq_error_hz);1105 dprintk(1, "*** Frequency error = %d Hz\n", freq_error_hz);1106 1107 xc_get_lock_status(priv, &lock_status);1108 dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %d\n",1109 lock_status);1110 1111 xc_get_version(priv, &hw_majorversion, &hw_minorversion,1112 &fw_majorversion, &fw_minorversion);1113 dprintk(1, "*** HW: V%02x.%02x, FW: V%02x.%02x\n",1114 hw_majorversion, hw_minorversion,1115 fw_majorversion, fw_minorversion);1116 1117 if (priv->video_standard < XC4000_DTV6) {1118 xc_get_hsync_freq(priv, &hsync_freq_hz);1119 dprintk(1, "*** Horizontal sync frequency = %d Hz\n",1120 hsync_freq_hz);1121 1122 xc_get_frame_lines(priv, &frame_lines);1123 dprintk(1, "*** Frame lines = %d\n", frame_lines);1124 }1125 1126 xc_get_quality(priv, &quality);1127 dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality);1128 1129 xc_get_signal_level(priv, &signal);1130 dprintk(1, "*** Signal level = -%ddB (%d)\n", signal >> 8, signal);1131 1132 xc_get_noise_level(priv, &noise);1133 dprintk(1, "*** Noise level = %ddB (%d)\n", noise >> 8, noise);1134}1135 1136static int xc4000_set_params(struct dvb_frontend *fe)1137{1138 struct dtv_frontend_properties *c = &fe->dtv_property_cache;1139 u32 delsys = c->delivery_system;1140 u32 bw = c->bandwidth_hz;1141 struct xc4000_priv *priv = fe->tuner_priv;1142 unsigned int type;1143 int ret = -EREMOTEIO;1144 1145 dprintk(1, "%s() frequency=%d (Hz)\n", __func__, c->frequency);1146 1147 mutex_lock(&priv->lock);1148 1149 switch (delsys) {1150 case SYS_ATSC:1151 dprintk(1, "%s() VSB modulation\n", __func__);1152 priv->rf_mode = XC_RF_MODE_AIR;1153 priv->freq_offset = 1750000;1154 priv->video_standard = XC4000_DTV6;1155 type = DTV6;1156 break;1157 case SYS_DVBC_ANNEX_B:1158 dprintk(1, "%s() QAM modulation\n", __func__);1159 priv->rf_mode = XC_RF_MODE_CABLE;1160 priv->freq_offset = 1750000;1161 priv->video_standard = XC4000_DTV6;1162 type = DTV6;1163 break;1164 case SYS_DVBT:1165 case SYS_DVBT2:1166 dprintk(1, "%s() OFDM\n", __func__);1167 if (bw == 0) {1168 if (c->frequency < 400000000) {1169 priv->freq_offset = 2250000;1170 } else {1171 priv->freq_offset = 2750000;1172 }1173 priv->video_standard = XC4000_DTV7_8;1174 type = DTV78;1175 } else if (bw <= 6000000) {1176 priv->video_standard = XC4000_DTV6;1177 priv->freq_offset = 1750000;1178 type = DTV6;1179 } else if (bw <= 7000000) {1180 priv->video_standard = XC4000_DTV7;1181 priv->freq_offset = 2250000;1182 type = DTV7;1183 } else {1184 priv->video_standard = XC4000_DTV8;1185 priv->freq_offset = 2750000;1186 type = DTV8;1187 }1188 priv->rf_mode = XC_RF_MODE_AIR;1189 break;1190 default:1191 printk(KERN_ERR "xc4000 delivery system not supported!\n");1192 ret = -EINVAL;1193 goto fail;1194 }1195 1196 priv->freq_hz = c->frequency - priv->freq_offset;1197 1198 dprintk(1, "%s() frequency=%d (compensated)\n",1199 __func__, priv->freq_hz);1200 1201 /* Make sure the correct firmware type is loaded */1202 if (check_firmware(fe, type, 0, priv->if_khz) != 0)1203 goto fail;1204 1205 priv->bandwidth = c->bandwidth_hz;1206 1207 ret = xc_set_signal_source(priv, priv->rf_mode);1208 if (ret != 0) {1209 printk(KERN_ERR "xc4000: xc_set_signal_source(%d) failed\n",1210 priv->rf_mode);1211 goto fail;1212 } else {1213 u16 video_mode, audio_mode;1214 video_mode = xc4000_standard[priv->video_standard].video_mode;1215 audio_mode = xc4000_standard[priv->video_standard].audio_mode;1216 if (type == DTV6 && priv->firm_version != 0x0102)1217 video_mode |= 0x0001;1218 ret = xc_set_tv_standard(priv, video_mode, audio_mode);1219 if (ret != 0) {1220 printk(KERN_ERR "xc4000: xc_set_tv_standard failed\n");1221 /* DJH - do not return when it fails... */1222 /* goto fail; */1223 }1224 }1225 1226 if (xc_write_reg(priv, XREG_D_CODE, 0) == 0)1227 ret = 0;1228 if (priv->dvb_amplitude != 0) {1229 if (xc_write_reg(priv, XREG_AMPLITUDE,1230 (priv->firm_version != 0x0102 ||1231 priv->dvb_amplitude != 134 ?1232 priv->dvb_amplitude : 132)) != 0)1233 ret = -EREMOTEIO;1234 }1235 if (priv->set_smoothedcvbs != 0) {1236 if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0)1237 ret = -EREMOTEIO;1238 }1239 if (ret != 0) {1240 printk(KERN_ERR "xc4000: setting registers failed\n");1241 /* goto fail; */1242 }1243 1244 xc_tune_channel(priv, priv->freq_hz);1245 1246 ret = 0;1247 1248fail:1249 mutex_unlock(&priv->lock);1250 1251 return ret;1252}1253 1254static int xc4000_set_analog_params(struct dvb_frontend *fe,1255 struct analog_parameters *params)1256{1257 struct xc4000_priv *priv = fe->tuner_priv;1258 unsigned int type = 0;1259 int ret = -EREMOTEIO;1260 1261 if (params->mode == V4L2_TUNER_RADIO) {1262 dprintk(1, "%s() frequency=%d (in units of 62.5Hz)\n",1263 __func__, params->frequency);1264 1265 mutex_lock(&priv->lock);1266 1267 params->std = 0;1268 priv->freq_hz = params->frequency * 125L / 2;1269 1270 if (audio_std & XC4000_AUDIO_STD_INPUT1) {1271 priv->video_standard = XC4000_FM_Radio_INPUT1;1272 type = FM | INPUT1;1273 } else {1274 priv->video_standard = XC4000_FM_Radio_INPUT2;1275 type = FM | INPUT2;1276 }1277 1278 goto tune_channel;1279 }1280 1281 dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n",1282 __func__, params->frequency);1283 1284 mutex_lock(&priv->lock);1285 1286 /* params->frequency is in units of 62.5khz */1287 priv->freq_hz = params->frequency * 62500;1288 1289 params->std &= V4L2_STD_ALL;1290 /* if std is not defined, choose one */1291 if (!params->std)1292 params->std = V4L2_STD_PAL_BG;1293 1294 if (audio_std & XC4000_AUDIO_STD_MONO)1295 type = MONO;1296 1297 if (params->std & V4L2_STD_MN) {1298 params->std = V4L2_STD_MN;1299 if (audio_std & XC4000_AUDIO_STD_MONO) {1300 priv->video_standard = XC4000_MN_NTSC_PAL_Mono;1301 } else if (audio_std & XC4000_AUDIO_STD_A2) {1302 params->std |= V4L2_STD_A2;1303 priv->video_standard = XC4000_MN_NTSC_PAL_A2;1304 } else {1305 params->std |= V4L2_STD_BTSC;1306 priv->video_standard = XC4000_MN_NTSC_PAL_BTSC;1307 }1308 goto tune_channel;1309 }1310 1311 if (params->std & V4L2_STD_PAL_BG) {1312 params->std = V4L2_STD_PAL_BG;1313 if (audio_std & XC4000_AUDIO_STD_MONO) {1314 priv->video_standard = XC4000_BG_PAL_MONO;1315 } else if (!(audio_std & XC4000_AUDIO_STD_A2)) {1316 if (!(audio_std & XC4000_AUDIO_STD_B)) {1317 params->std |= V4L2_STD_NICAM_A;1318 priv->video_standard = XC4000_BG_PAL_NICAM;1319 } else {1320 params->std |= V4L2_STD_NICAM_B;1321 priv->video_standard = XC4000_BG_PAL_NICAM;1322 }1323 } else {1324 if (!(audio_std & XC4000_AUDIO_STD_B)) {1325 params->std |= V4L2_STD_A2_A;1326 priv->video_standard = XC4000_BG_PAL_A2;1327 } else {1328 params->std |= V4L2_STD_A2_B;1329 priv->video_standard = XC4000_BG_PAL_A2;1330 }1331 }1332 goto tune_channel;1333 }1334 1335 if (params->std & V4L2_STD_PAL_I) {1336 /* default to NICAM audio standard */1337 params->std = V4L2_STD_PAL_I | V4L2_STD_NICAM;1338 if (audio_std & XC4000_AUDIO_STD_MONO)1339 priv->video_standard = XC4000_I_PAL_NICAM_MONO;1340 else1341 priv->video_standard = XC4000_I_PAL_NICAM;1342 goto tune_channel;1343 }1344 1345 if (params->std & V4L2_STD_PAL_DK) {1346 params->std = V4L2_STD_PAL_DK;1347 if (audio_std & XC4000_AUDIO_STD_MONO) {1348 priv->video_standard = XC4000_DK_PAL_MONO;1349 } else if (audio_std & XC4000_AUDIO_STD_A2) {1350 params->std |= V4L2_STD_A2;1351 priv->video_standard = XC4000_DK_PAL_A2;1352 } else {1353 params->std |= V4L2_STD_NICAM;1354 priv->video_standard = XC4000_DK_PAL_NICAM;1355 }1356 goto tune_channel;1357 }1358 1359 if (params->std & V4L2_STD_SECAM_DK) {1360 /* default to A2 audio standard */1361 params->std = V4L2_STD_SECAM_DK | V4L2_STD_A2;1362 if (audio_std & XC4000_AUDIO_STD_L) {1363 type = 0;1364 priv->video_standard = XC4000_DK_SECAM_NICAM;1365 } else if (audio_std & XC4000_AUDIO_STD_MONO) {1366 priv->video_standard = XC4000_DK_SECAM_A2MONO;1367 } else if (audio_std & XC4000_AUDIO_STD_K3) {1368 params->std |= V4L2_STD_SECAM_K3;1369 priv->video_standard = XC4000_DK_SECAM_A2LDK3;1370 } else {1371 priv->video_standard = XC4000_DK_SECAM_A2DK1;1372 }1373 goto tune_channel;1374 }1375 1376 if (params->std & V4L2_STD_SECAM_L) {1377 /* default to NICAM audio standard */1378 type = 0;1379 params->std = V4L2_STD_SECAM_L | V4L2_STD_NICAM;1380 priv->video_standard = XC4000_L_SECAM_NICAM;1381 goto tune_channel;1382 }1383 1384 if (params->std & V4L2_STD_SECAM_LC) {1385 /* default to NICAM audio standard */1386 type = 0;1387 params->std = V4L2_STD_SECAM_LC | V4L2_STD_NICAM;1388 priv->video_standard = XC4000_LC_SECAM_NICAM;1389 goto tune_channel;1390 }1391 1392tune_channel:1393 /* FIXME: it could be air. */1394 priv->rf_mode = XC_RF_MODE_CABLE;1395 1396 if (check_firmware(fe, type, params->std,1397 xc4000_standard[priv->video_standard].int_freq) != 0)1398 goto fail;1399 1400 ret = xc_set_signal_source(priv, priv->rf_mode);1401 if (ret != 0) {1402 printk(KERN_ERR1403 "xc4000: xc_set_signal_source(%d) failed\n",1404 priv->rf_mode);1405 goto fail;1406 } else {1407 u16 video_mode, audio_mode;1408 video_mode = xc4000_standard[priv->video_standard].video_mode;1409 audio_mode = xc4000_standard[priv->video_standard].audio_mode;1410 if (priv->video_standard < XC4000_BG_PAL_A2) {1411 if (type & NOGD)1412 video_mode &= 0xFF7F;1413 } else if (priv->video_standard < XC4000_I_PAL_NICAM) {1414 if (priv->firm_version == 0x0102)1415 video_mode &= 0xFEFF;1416 if (audio_std & XC4000_AUDIO_STD_B)1417 video_mode |= 0x0080;1418 }1419 ret = xc_set_tv_standard(priv, video_mode, audio_mode);1420 if (ret != 0) {1421 printk(KERN_ERR "xc4000: xc_set_tv_standard failed\n");1422 goto fail;1423 }1424 }1425 1426 if (xc_write_reg(priv, XREG_D_CODE, 0) == 0)1427 ret = 0;1428 if (xc_write_reg(priv, XREG_AMPLITUDE, 1) != 0)1429 ret = -EREMOTEIO;1430 if (priv->set_smoothedcvbs != 0) {1431 if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0)1432 ret = -EREMOTEIO;1433 }1434 if (ret != 0) {1435 printk(KERN_ERR "xc4000: setting registers failed\n");1436 goto fail;1437 }1438 1439 xc_tune_channel(priv, priv->freq_hz);1440 1441 ret = 0;1442 1443fail:1444 mutex_unlock(&priv->lock);1445 1446 return ret;1447}1448 1449static int xc4000_get_signal(struct dvb_frontend *fe, u16 *strength)1450{1451 struct xc4000_priv *priv = fe->tuner_priv;1452 u16 value = 0;1453 int rc;1454 1455 mutex_lock(&priv->lock);1456 rc = xc4000_readreg(priv, XREG_SIGNAL_LEVEL, &value);1457 mutex_unlock(&priv->lock);1458 1459 if (rc < 0)1460 goto ret;1461 1462 /* Information from real testing of DVB-T and radio part,1463 coefficient for one dB is 0xff.1464 */1465 tuner_dbg("Signal strength: -%ddB (%05d)\n", value >> 8, value);1466 1467 /* all known digital modes */1468 if ((priv->video_standard == XC4000_DTV6) ||1469 (priv->video_standard == XC4000_DTV7) ||1470 (priv->video_standard == XC4000_DTV7_8) ||1471 (priv->video_standard == XC4000_DTV8))1472 goto digital;1473 1474 /* Analog mode has NOISE LEVEL important, signal1475 depends only on gain of antenna and amplifiers,1476 but it doesn't tell anything about real quality1477 of reception.1478 */1479 mutex_lock(&priv->lock);1480 rc = xc4000_readreg(priv, XREG_NOISE_LEVEL, &value);1481 mutex_unlock(&priv->lock);1482 1483 tuner_dbg("Noise level: %ddB (%05d)\n", value >> 8, value);1484 1485 /* highest noise level: 32dB */1486 if (value >= 0x2000) {1487 value = 0;1488 } else {1489 value = (~value << 3) & 0xffff;1490 }1491 1492 goto ret;1493 1494 /* Digital mode has SIGNAL LEVEL important and real1495 noise level is stored in demodulator registers.1496 */1497digital:1498 /* best signal: -50dB */1499 if (value <= 0x3200) {1500 value = 0xffff;1501 /* minimum: -114dB - should be 0x7200 but real zero is 0x713A */1502 } else if (value >= 0x713A) {1503 value = 0;1504 } else {1505 value = ~(value - 0x3200) << 2;1506 }1507 1508ret:1509 *strength = value;1510 1511 return rc;1512}1513 1514static int xc4000_get_frequency(struct dvb_frontend *fe, u32 *freq)1515{1516 struct xc4000_priv *priv = fe->tuner_priv;1517 1518 mutex_lock(&priv->lock);1519 *freq = priv->freq_hz + priv->freq_offset;1520 1521 if (debug) {1522 if ((priv->cur_fw.type1523 & (BASE | FM | DTV6 | DTV7 | DTV78 | DTV8)) == BASE) {1524 u16 snr = 0;1525 if (xc4000_readreg(priv, XREG_SNR, &snr) == 0) {1526 mutex_unlock(&priv->lock);1527 dprintk(1, "%s() freq = %u, SNR = %d\n",1528 __func__, *freq, snr);1529 return 0;1530 }1531 }1532 }1533 mutex_unlock(&priv->lock);1534 1535 dprintk(1, "%s()\n", __func__);1536 1537 return 0;1538}1539 1540static int xc4000_get_bandwidth(struct dvb_frontend *fe, u32 *bw)1541{1542 struct xc4000_priv *priv = fe->tuner_priv;1543 dprintk(1, "%s()\n", __func__);1544 1545 *bw = priv->bandwidth;1546 return 0;1547}1548 1549static int xc4000_get_status(struct dvb_frontend *fe, u32 *status)1550{1551 struct xc4000_priv *priv = fe->tuner_priv;1552 u16 lock_status = 0;1553 1554 mutex_lock(&priv->lock);1555 1556 if (priv->cur_fw.type & BASE)1557 xc_get_lock_status(priv, &lock_status);1558 1559 *status = (lock_status == 1 ?1560 TUNER_STATUS_LOCKED | TUNER_STATUS_STEREO : 0);1561 if (priv->cur_fw.type & (DTV6 | DTV7 | DTV78 | DTV8))1562 *status &= (~TUNER_STATUS_STEREO);1563 1564 mutex_unlock(&priv->lock);1565 1566 dprintk(2, "%s() lock_status = %d\n", __func__, lock_status);1567 1568 return 0;1569}1570 1571static int xc4000_sleep(struct dvb_frontend *fe)1572{1573 struct xc4000_priv *priv = fe->tuner_priv;1574 int ret = 0;1575 1576 dprintk(1, "%s()\n", __func__);1577 1578 mutex_lock(&priv->lock);1579 1580 /* Avoid firmware reload on slow devices */1581 if ((no_poweroff == 2 ||1582 (no_poweroff == 0 && priv->default_pm != 0)) &&1583 (priv->cur_fw.type & BASE) != 0) {1584 /* force reset and firmware reload */1585 priv->cur_fw.type = XC_POWERED_DOWN;1586 1587 if (xc_write_reg(priv, XREG_POWER_DOWN, 0) != 0) {1588 printk(KERN_ERR1589 "xc4000: %s() unable to shutdown tuner\n",1590 __func__);1591 ret = -EREMOTEIO;1592 }1593 msleep(20);1594 }1595 1596 mutex_unlock(&priv->lock);1597 1598 return ret;1599}1600 1601static int xc4000_init(struct dvb_frontend *fe)1602{1603 dprintk(1, "%s()\n", __func__);1604 1605 return 0;1606}1607 1608static void xc4000_release(struct dvb_frontend *fe)1609{1610 struct xc4000_priv *priv = fe->tuner_priv;1611 1612 dprintk(1, "%s()\n", __func__);1613 1614 mutex_lock(&xc4000_list_mutex);1615 1616 if (priv)1617 hybrid_tuner_release_state(priv);1618 1619 mutex_unlock(&xc4000_list_mutex);1620 1621 fe->tuner_priv = NULL;1622}1623 1624static const struct dvb_tuner_ops xc4000_tuner_ops = {1625 .info = {1626 .name = "Xceive XC4000",1627 .frequency_min_hz = 1 * MHz,1628 .frequency_max_hz = 1023 * MHz,1629 .frequency_step_hz = 50 * kHz,1630 },1631 1632 .release = xc4000_release,1633 .init = xc4000_init,1634 .sleep = xc4000_sleep,1635 1636 .set_params = xc4000_set_params,1637 .set_analog_params = xc4000_set_analog_params,1638 .get_frequency = xc4000_get_frequency,1639 .get_rf_strength = xc4000_get_signal,1640 .get_bandwidth = xc4000_get_bandwidth,1641 .get_status = xc4000_get_status1642};1643 1644struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,1645 struct i2c_adapter *i2c,1646 struct xc4000_config *cfg)1647{1648 struct xc4000_priv *priv = NULL;1649 int instance;1650 u16 id = 0;1651 1652 dprintk(1, "%s(%d-%04x)\n", __func__,1653 i2c ? i2c_adapter_id(i2c) : -1,1654 cfg ? cfg->i2c_address : -1);1655 1656 mutex_lock(&xc4000_list_mutex);1657 1658 instance = hybrid_tuner_request_state(struct xc4000_priv, priv,1659 hybrid_tuner_instance_list,1660 i2c, cfg->i2c_address, "xc4000");1661 switch (instance) {1662 case 0:1663 goto fail;1664 case 1:1665 /* new tuner instance */1666 priv->bandwidth = 6000000;1667 /* set default configuration */1668 priv->if_khz = 4560;1669 priv->default_pm = 0;1670 priv->dvb_amplitude = 134;1671 priv->set_smoothedcvbs = 1;1672 mutex_init(&priv->lock);1673 fe->tuner_priv = priv;1674 break;1675 default:1676 /* existing tuner instance */1677 fe->tuner_priv = priv;1678 break;1679 }1680 1681 if (cfg->if_khz != 0) {1682 /* copy configuration if provided by the caller */1683 priv->if_khz = cfg->if_khz;1684 priv->default_pm = cfg->default_pm;1685 priv->dvb_amplitude = cfg->dvb_amplitude;1686 priv->set_smoothedcvbs = cfg->set_smoothedcvbs;1687 }1688 1689 /* Check if firmware has been loaded. It is possible that another1690 instance of the driver has loaded the firmware.1691 */1692 1693 if (instance == 1) {1694 if (xc4000_readreg(priv, XREG_PRODUCT_ID, &id) != 0)1695 goto fail;1696 } else {1697 id = ((priv->cur_fw.type & BASE) != 0 ?1698 priv->hwmodel : XC_PRODUCT_ID_FW_NOT_LOADED);1699 }1700 1701 switch (id) {1702 case XC_PRODUCT_ID_XC4000:1703 case XC_PRODUCT_ID_XC4100:1704 printk(KERN_INFO1705 "xc4000: Successfully identified at address 0x%02x\n",1706 cfg->i2c_address);1707 printk(KERN_INFO1708 "xc4000: Firmware has been loaded previously\n");1709 break;1710 case XC_PRODUCT_ID_FW_NOT_LOADED:1711 printk(KERN_INFO1712 "xc4000: Successfully identified at address 0x%02x\n",1713 cfg->i2c_address);1714 printk(KERN_INFO1715 "xc4000: Firmware has not been loaded previously\n");1716 break;1717 default:1718 printk(KERN_ERR1719 "xc4000: Device not found at addr 0x%02x (0x%x)\n",1720 cfg->i2c_address, id);1721 goto fail;1722 }1723 1724 mutex_unlock(&xc4000_list_mutex);1725 1726 memcpy(&fe->ops.tuner_ops, &xc4000_tuner_ops,1727 sizeof(struct dvb_tuner_ops));1728 1729 if (instance == 1) {1730 int ret;1731 mutex_lock(&priv->lock);1732 ret = xc4000_fwupload(fe);1733 mutex_unlock(&priv->lock);1734 if (ret != 0)1735 goto fail2;1736 }1737 1738 return fe;1739fail:1740 mutex_unlock(&xc4000_list_mutex);1741fail2:1742 xc4000_release(fe);1743 return NULL;1744}1745EXPORT_SYMBOL_GPL(xc4000_attach);1746 1747MODULE_AUTHOR("Steven Toth, Davide Ferri");1748MODULE_DESCRIPTION("Xceive xc4000 silicon tuner driver");1749MODULE_LICENSE("GPL");1750MODULE_FIRMWARE(XC4000_DEFAULT_FIRMWARE_NEW);1751MODULE_FIRMWARE(XC4000_DEFAULT_FIRMWARE);1752