1 /* 2 * Driver for Xceive XC4000 "QAM/8VSB single chip tuner" 3 * 4 * Copyright (c) 2007 Xceive Corporation 5 * Copyright (c) 2007 Steven Toth <stoth@linuxtv.org> 6 * Copyright (c) 2009 Devin Heitmueller <dheitmueller@kernellabs.com> 7 * Copyright (c) 2009 Davide Ferri <d.ferri@zero11.it> 8 * Copyright (c) 2010 Istvan Varga <istvan_v@mailbox.hu> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 23 */ 24 25 #include <linux/module.h> 26 #include <linux/moduleparam.h> 27 #include <linux/videodev2.h> 28 #include <linux/delay.h> 29 #include <linux/dvb/frontend.h> 30 #include <linux/i2c.h> 31 #include <linux/mutex.h> 32 #include <asm/unaligned.h> 33 34 #include "dvb_frontend.h" 35 36 #include "xc4000.h" 37 #include "tuner-i2c.h" 38 #include "tuner-xc2028-types.h" 39 40 static int debug; 41 module_param(debug, int, 0644); 42 MODULE_PARM_DESC(debug, "Debugging level (0 to 2, default: 0 (off))."); 43 44 static int no_poweroff; 45 module_param(no_poweroff, int, 0644); 46 MODULE_PARM_DESC(no_poweroff, "Power management (1: disabled, 2: enabled, " 47 "0 (default): use device-specific default mode)."); 48 49 static int audio_std; 50 module_param(audio_std, int, 0644); 51 MODULE_PARM_DESC(audio_std, "Audio standard. XC4000 audio decoder explicitly " 52 "needs to know what audio standard is needed for some video standards " 53 "with audio A2 or NICAM. The valid settings are a sum of:\n" 54 " 1: use NICAM/B or A2/B instead of NICAM/A or A2/A\n" 55 " 2: use A2 instead of NICAM or BTSC\n" 56 " 4: use SECAM/K3 instead of K1\n" 57 " 8: use PAL-D/K audio for SECAM-D/K\n" 58 "16: use FM radio input 1 instead of input 2\n" 59 "32: use mono audio (the lower three bits are ignored)"); 60 61 static char firmware_name[30]; 62 module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0); 63 MODULE_PARM_DESC(firmware_name, "Firmware file name. Allows overriding the " 64 "default firmware name."); 65 66 static DEFINE_MUTEX(xc4000_list_mutex); 67 static LIST_HEAD(hybrid_tuner_instance_list); 68 69 #define dprintk(level, fmt, arg...) if (debug >= level) \ 70 printk(KERN_INFO "%s: " fmt, "xc4000", ## arg) 71 72 /* struct for storing firmware table */ 73 struct firmware_description { 74 unsigned int type; 75 v4l2_std_id id; 76 __u16 int_freq; 77 unsigned char *ptr; 78 unsigned int size; 79 }; 80 81 struct firmware_properties { 82 unsigned int type; 83 v4l2_std_id id; 84 v4l2_std_id std_req; 85 __u16 int_freq; 86 unsigned int scode_table; 87 int scode_nr; 88 }; 89 90 struct xc4000_priv { 91 struct tuner_i2c_props i2c_props; 92 struct list_head hybrid_tuner_instance_list; 93 struct firmware_description *firm; 94 int firm_size; 95 u32 if_khz; 96 u32 freq_hz, freq_offset; 97 u32 bandwidth; 98 u8 video_standard; 99 u8 rf_mode; 100 u8 default_pm; 101 u8 dvb_amplitude; 102 u8 set_smoothedcvbs; 103 u8 ignore_i2c_write_errors; 104 __u16 firm_version; 105 struct firmware_properties cur_fw; 106 __u16 hwmodel; 107 __u16 hwvers; 108 struct mutex lock; 109 }; 110 111 #define XC4000_AUDIO_STD_B 1 112 #define XC4000_AUDIO_STD_A2 2 113 #define XC4000_AUDIO_STD_K3 4 114 #define XC4000_AUDIO_STD_L 8 115 #define XC4000_AUDIO_STD_INPUT1 16 116 #define XC4000_AUDIO_STD_MONO 32 117 118 #define XC4000_DEFAULT_FIRMWARE "dvb-fe-xc4000-1.4.fw" 119 #define XC4000_DEFAULT_FIRMWARE_NEW "dvb-fe-xc4000-1.4.1.fw" 120 121 /* Misc Defines */ 122 #define MAX_TV_STANDARD 24 123 #define XC_MAX_I2C_WRITE_LENGTH 64 124 #define XC_POWERED_DOWN 0x80000000U 125 126 /* Signal Types */ 127 #define XC_RF_MODE_AIR 0 128 #define XC_RF_MODE_CABLE 1 129 130 /* Product id */ 131 #define XC_PRODUCT_ID_FW_NOT_LOADED 0x2000 132 #define XC_PRODUCT_ID_XC4000 0x0FA0 133 #define XC_PRODUCT_ID_XC4100 0x1004 134 135 /* Registers (Write-only) */ 136 #define XREG_INIT 0x00 137 #define XREG_VIDEO_MODE 0x01 138 #define XREG_AUDIO_MODE 0x02 139 #define XREG_RF_FREQ 0x03 140 #define XREG_D_CODE 0x04 141 #define XREG_DIRECTSITTING_MODE 0x05 142 #define XREG_SEEK_MODE 0x06 143 #define XREG_POWER_DOWN 0x08 144 #define XREG_SIGNALSOURCE 0x0A 145 #define XREG_SMOOTHEDCVBS 0x0E 146 #define XREG_AMPLITUDE 0x10 147 148 /* Registers (Read-only) */ 149 #define XREG_ADC_ENV 0x00 150 #define XREG_QUALITY 0x01 151 #define XREG_FRAME_LINES 0x02 152 #define XREG_HSYNC_FREQ 0x03 153 #define XREG_LOCK 0x04 154 #define XREG_FREQ_ERROR 0x05 155 #define XREG_SNR 0x06 156 #define XREG_VERSION 0x07 157 #define XREG_PRODUCT_ID 0x08 158 #define XREG_SIGNAL_LEVEL 0x0A 159 #define XREG_NOISE_LEVEL 0x0B 160 161 /* 162 Basic firmware description. This will remain with 163 the driver for documentation purposes. 164 165 This represents an I2C firmware file encoded as a 166 string of unsigned char. Format is as follows: 167 168 char[0 ]=len0_MSB -> len = len_MSB * 256 + len_LSB 169 char[1 ]=len0_LSB -> length of first write transaction 170 char[2 ]=data0 -> first byte to be sent 171 char[3 ]=data1 172 char[4 ]=data2 173 char[ ]=... 174 char[M ]=dataN -> last byte to be sent 175 char[M+1]=len1_MSB -> len = len_MSB * 256 + len_LSB 176 char[M+2]=len1_LSB -> length of second write transaction 177 char[M+3]=data0 178 char[M+4]=data1 179 ... 180 etc. 181 182 The [len] value should be interpreted as follows: 183 184 len= len_MSB _ len_LSB 185 len=1111_1111_1111_1111 : End of I2C_SEQUENCE 186 len=0000_0000_0000_0000 : Reset command: Do hardware reset 187 len=0NNN_NNNN_NNNN_NNNN : Normal transaction: number of bytes = {1:32767) 188 len=1WWW_WWWW_WWWW_WWWW : Wait command: wait for {1:32767} ms 189 190 For the RESET and WAIT commands, the two following bytes will contain 191 immediately the length of the following transaction. 192 */ 193 194 struct XC_TV_STANDARD { 195 const char *Name; 196 u16 audio_mode; 197 u16 video_mode; 198 u16 int_freq; 199 }; 200 201 /* Tuner standards */ 202 #define XC4000_MN_NTSC_PAL_BTSC 0 203 #define XC4000_MN_NTSC_PAL_A2 1 204 #define XC4000_MN_NTSC_PAL_EIAJ 2 205 #define XC4000_MN_NTSC_PAL_Mono 3 206 #define XC4000_BG_PAL_A2 4 207 #define XC4000_BG_PAL_NICAM 5 208 #define XC4000_BG_PAL_MONO 6 209 #define XC4000_I_PAL_NICAM 7 210 #define XC4000_I_PAL_NICAM_MONO 8 211 #define XC4000_DK_PAL_A2 9 212 #define XC4000_DK_PAL_NICAM 10 213 #define XC4000_DK_PAL_MONO 11 214 #define XC4000_DK_SECAM_A2DK1 12 215 #define XC4000_DK_SECAM_A2LDK3 13 216 #define XC4000_DK_SECAM_A2MONO 14 217 #define XC4000_DK_SECAM_NICAM 15 218 #define XC4000_L_SECAM_NICAM 16 219 #define XC4000_LC_SECAM_NICAM 17 220 #define XC4000_DTV6 18 221 #define XC4000_DTV8 19 222 #define XC4000_DTV7_8 20 223 #define XC4000_DTV7 21 224 #define XC4000_FM_Radio_INPUT2 22 225 #define XC4000_FM_Radio_INPUT1 23 226 227 static struct XC_TV_STANDARD xc4000_standard[MAX_TV_STANDARD] = { 228 {"M/N-NTSC/PAL-BTSC", 0x0000, 0x80A0, 4500}, 229 {"M/N-NTSC/PAL-A2", 0x0000, 0x80A0, 4600}, 230 {"M/N-NTSC/PAL-EIAJ", 0x0040, 0x80A0, 4500}, 231 {"M/N-NTSC/PAL-Mono", 0x0078, 0x80A0, 4500}, 232 {"B/G-PAL-A2", 0x0000, 0x8159, 5640}, 233 {"B/G-PAL-NICAM", 0x0004, 0x8159, 5740}, 234 {"B/G-PAL-MONO", 0x0078, 0x8159, 5500}, 235 {"I-PAL-NICAM", 0x0080, 0x8049, 6240}, 236 {"I-PAL-NICAM-MONO", 0x0078, 0x8049, 6000}, 237 {"D/K-PAL-A2", 0x0000, 0x8049, 6380}, 238 {"D/K-PAL-NICAM", 0x0080, 0x8049, 6200}, 239 {"D/K-PAL-MONO", 0x0078, 0x8049, 6500}, 240 {"D/K-SECAM-A2 DK1", 0x0000, 0x8049, 6340}, 241 {"D/K-SECAM-A2 L/DK3", 0x0000, 0x8049, 6000}, 242 {"D/K-SECAM-A2 MONO", 0x0078, 0x8049, 6500}, 243 {"D/K-SECAM-NICAM", 0x0080, 0x8049, 6200}, 244 {"L-SECAM-NICAM", 0x8080, 0x0009, 6200}, 245 {"L'-SECAM-NICAM", 0x8080, 0x4009, 6200}, 246 {"DTV6", 0x00C0, 0x8002, 0}, 247 {"DTV8", 0x00C0, 0x800B, 0}, 248 {"DTV7/8", 0x00C0, 0x801B, 0}, 249 {"DTV7", 0x00C0, 0x8007, 0}, 250 {"FM Radio-INPUT2", 0x0008, 0x9800, 10700}, 251 {"FM Radio-INPUT1", 0x0008, 0x9000, 10700} 252 }; 253 254 static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val); 255 static int xc4000_tuner_reset(struct dvb_frontend *fe); 256 static void xc_debug_dump(struct xc4000_priv *priv); 257 258 static int xc_send_i2c_data(struct xc4000_priv *priv, u8 *buf, int len) 259 { 260 struct i2c_msg msg = { .addr = priv->i2c_props.addr, 261 .flags = 0, .buf = buf, .len = len }; 262 if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) { 263 if (priv->ignore_i2c_write_errors == 0) { 264 printk(KERN_ERR "xc4000: I2C write failed (len=%i)\n", 265 len); 266 if (len == 4) { 267 printk(KERN_ERR "bytes %*ph\n", 4, buf); 268 } 269 return -EREMOTEIO; 270 } 271 } 272 return 0; 273 } 274 275 static int xc4000_tuner_reset(struct dvb_frontend *fe) 276 { 277 struct xc4000_priv *priv = fe->tuner_priv; 278 int ret; 279 280 dprintk(1, "%s()\n", __func__); 281 282 if (fe->callback) { 283 ret = fe->callback(((fe->dvb) && (fe->dvb->priv)) ? 284 fe->dvb->priv : 285 priv->i2c_props.adap->algo_data, 286 DVB_FRONTEND_COMPONENT_TUNER, 287 XC4000_TUNER_RESET, 0); 288 if (ret) { 289 printk(KERN_ERR "xc4000: reset failed\n"); 290 return -EREMOTEIO; 291 } 292 } else { 293 printk(KERN_ERR "xc4000: no tuner reset callback function, " 294 "fatal\n"); 295 return -EINVAL; 296 } 297 return 0; 298 } 299 300 static int xc_write_reg(struct xc4000_priv *priv, u16 regAddr, u16 i2cData) 301 { 302 u8 buf[4]; 303 int result; 304 305 buf[0] = (regAddr >> 8) & 0xFF; 306 buf[1] = regAddr & 0xFF; 307 buf[2] = (i2cData >> 8) & 0xFF; 308 buf[3] = i2cData & 0xFF; 309 result = xc_send_i2c_data(priv, buf, 4); 310 311 return result; 312 } 313 314 static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence) 315 { 316 struct xc4000_priv *priv = fe->tuner_priv; 317 318 int i, nbytes_to_send, result; 319 unsigned int len, pos, index; 320 u8 buf[XC_MAX_I2C_WRITE_LENGTH]; 321 322 index = 0; 323 while ((i2c_sequence[index] != 0xFF) || 324 (i2c_sequence[index + 1] != 0xFF)) { 325 len = i2c_sequence[index] * 256 + i2c_sequence[index+1]; 326 if (len == 0x0000) { 327 /* RESET command */ 328 /* NOTE: this is ignored, as the reset callback was */ 329 /* already called by check_firmware() */ 330 index += 2; 331 } else if (len & 0x8000) { 332 /* WAIT command */ 333 msleep(len & 0x7FFF); 334 index += 2; 335 } else { 336 /* Send i2c data whilst ensuring individual transactions 337 * do not exceed XC_MAX_I2C_WRITE_LENGTH bytes. 338 */ 339 index += 2; 340 buf[0] = i2c_sequence[index]; 341 buf[1] = i2c_sequence[index + 1]; 342 pos = 2; 343 while (pos < len) { 344 if ((len - pos) > XC_MAX_I2C_WRITE_LENGTH - 2) 345 nbytes_to_send = 346 XC_MAX_I2C_WRITE_LENGTH; 347 else 348 nbytes_to_send = (len - pos + 2); 349 for (i = 2; i < nbytes_to_send; i++) { 350 buf[i] = i2c_sequence[index + pos + 351 i - 2]; 352 } 353 result = xc_send_i2c_data(priv, buf, 354 nbytes_to_send); 355 356 if (result != 0) 357 return result; 358 359 pos += nbytes_to_send - 2; 360 } 361 index += len; 362 } 363 } 364 return 0; 365 } 366 367 static int xc_set_tv_standard(struct xc4000_priv *priv, 368 u16 video_mode, u16 audio_mode) 369 { 370 int ret; 371 dprintk(1, "%s(0x%04x,0x%04x)\n", __func__, video_mode, audio_mode); 372 dprintk(1, "%s() Standard = %s\n", 373 __func__, 374 xc4000_standard[priv->video_standard].Name); 375 376 /* Don't complain when the request fails because of i2c stretching */ 377 priv->ignore_i2c_write_errors = 1; 378 379 ret = xc_write_reg(priv, XREG_VIDEO_MODE, video_mode); 380 if (ret == 0) 381 ret = xc_write_reg(priv, XREG_AUDIO_MODE, audio_mode); 382 383 priv->ignore_i2c_write_errors = 0; 384 385 return ret; 386 } 387 388 static int xc_set_signal_source(struct xc4000_priv *priv, u16 rf_mode) 389 { 390 dprintk(1, "%s(%d) Source = %s\n", __func__, rf_mode, 391 rf_mode == XC_RF_MODE_AIR ? "ANTENNA" : "CABLE"); 392 393 if ((rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE)) { 394 rf_mode = XC_RF_MODE_CABLE; 395 printk(KERN_ERR 396 "%s(), Invalid mode, defaulting to CABLE", 397 __func__); 398 } 399 return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode); 400 } 401 402 static const struct dvb_tuner_ops xc4000_tuner_ops; 403 404 static int xc_set_rf_frequency(struct xc4000_priv *priv, u32 freq_hz) 405 { 406 u16 freq_code; 407 408 dprintk(1, "%s(%u)\n", __func__, freq_hz); 409 410 if ((freq_hz > xc4000_tuner_ops.info.frequency_max) || 411 (freq_hz < xc4000_tuner_ops.info.frequency_min)) 412 return -EINVAL; 413 414 freq_code = (u16)(freq_hz / 15625); 415 416 /* WAS: Starting in firmware version 1.1.44, Xceive recommends using the 417 FINERFREQ for all normal tuning (the doc indicates reg 0x03 should 418 only be used for fast scanning for channel lock) */ 419 /* WAS: XREG_FINERFREQ */ 420 return xc_write_reg(priv, XREG_RF_FREQ, freq_code); 421 } 422 423 static int xc_get_adc_envelope(struct xc4000_priv *priv, u16 *adc_envelope) 424 { 425 return xc4000_readreg(priv, XREG_ADC_ENV, adc_envelope); 426 } 427 428 static int xc_get_frequency_error(struct xc4000_priv *priv, u32 *freq_error_hz) 429 { 430 int result; 431 u16 regData; 432 u32 tmp; 433 434 result = xc4000_readreg(priv, XREG_FREQ_ERROR, ®Data); 435 if (result != 0) 436 return result; 437 438 tmp = (u32)regData & 0xFFFFU; 439 tmp = (tmp < 0x8000U ? tmp : 0x10000U - tmp); 440 (*freq_error_hz) = tmp * 15625; 441 return result; 442 } 443 444 static int xc_get_lock_status(struct xc4000_priv *priv, u16 *lock_status) 445 { 446 return xc4000_readreg(priv, XREG_LOCK, lock_status); 447 } 448 449 static int xc_get_version(struct xc4000_priv *priv, 450 u8 *hw_majorversion, u8 *hw_minorversion, 451 u8 *fw_majorversion, u8 *fw_minorversion) 452 { 453 u16 data; 454 int result; 455 456 result = xc4000_readreg(priv, XREG_VERSION, &data); 457 if (result != 0) 458 return result; 459 460 (*hw_majorversion) = (data >> 12) & 0x0F; 461 (*hw_minorversion) = (data >> 8) & 0x0F; 462 (*fw_majorversion) = (data >> 4) & 0x0F; 463 (*fw_minorversion) = data & 0x0F; 464 465 return 0; 466 } 467 468 static int xc_get_hsync_freq(struct xc4000_priv *priv, u32 *hsync_freq_hz) 469 { 470 u16 regData; 471 int result; 472 473 result = xc4000_readreg(priv, XREG_HSYNC_FREQ, ®Data); 474 if (result != 0) 475 return result; 476 477 (*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100; 478 return result; 479 } 480 481 static int xc_get_frame_lines(struct xc4000_priv *priv, u16 *frame_lines) 482 { 483 return xc4000_readreg(priv, XREG_FRAME_LINES, frame_lines); 484 } 485 486 static int xc_get_quality(struct xc4000_priv *priv, u16 *quality) 487 { 488 return xc4000_readreg(priv, XREG_QUALITY, quality); 489 } 490 491 static int xc_get_signal_level(struct xc4000_priv *priv, u16 *signal) 492 { 493 return xc4000_readreg(priv, XREG_SIGNAL_LEVEL, signal); 494 } 495 496 static int xc_get_noise_level(struct xc4000_priv *priv, u16 *noise) 497 { 498 return xc4000_readreg(priv, XREG_NOISE_LEVEL, noise); 499 } 500 501 static u16 xc_wait_for_lock(struct xc4000_priv *priv) 502 { 503 u16 lock_state = 0; 504 int watchdog_count = 40; 505 506 while ((lock_state == 0) && (watchdog_count > 0)) { 507 xc_get_lock_status(priv, &lock_state); 508 if (lock_state != 1) { 509 msleep(5); 510 watchdog_count--; 511 } 512 } 513 return lock_state; 514 } 515 516 static int xc_tune_channel(struct xc4000_priv *priv, u32 freq_hz) 517 { 518 int found = 1; 519 int result; 520 521 dprintk(1, "%s(%u)\n", __func__, freq_hz); 522 523 /* Don't complain when the request fails because of i2c stretching */ 524 priv->ignore_i2c_write_errors = 1; 525 result = xc_set_rf_frequency(priv, freq_hz); 526 priv->ignore_i2c_write_errors = 0; 527 528 if (result != 0) 529 return 0; 530 531 /* wait for lock only in analog TV mode */ 532 if ((priv->cur_fw.type & (FM | DTV6 | DTV7 | DTV78 | DTV8)) == 0) { 533 if (xc_wait_for_lock(priv) != 1) 534 found = 0; 535 } 536 537 /* Wait for stats to stabilize. 538 * Frame Lines needs two frame times after initial lock 539 * before it is valid. 540 */ 541 msleep(debug ? 100 : 10); 542 543 if (debug) 544 xc_debug_dump(priv); 545 546 return found; 547 } 548 549 static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val) 550 { 551 u8 buf[2] = { reg >> 8, reg & 0xff }; 552 u8 bval[2] = { 0, 0 }; 553 struct i2c_msg msg[2] = { 554 { .addr = priv->i2c_props.addr, 555 .flags = 0, .buf = &buf[0], .len = 2 }, 556 { .addr = priv->i2c_props.addr, 557 .flags = I2C_M_RD, .buf = &bval[0], .len = 2 }, 558 }; 559 560 if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) { 561 printk(KERN_ERR "xc4000: I2C read failed\n"); 562 return -EREMOTEIO; 563 } 564 565 *val = (bval[0] << 8) | bval[1]; 566 return 0; 567 } 568 569 #define dump_firm_type(t) dump_firm_type_and_int_freq(t, 0) 570 static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq) 571 { 572 if (type & BASE) 573 printk(KERN_CONT "BASE "); 574 if (type & INIT1) 575 printk(KERN_CONT "INIT1 "); 576 if (type & F8MHZ) 577 printk(KERN_CONT "F8MHZ "); 578 if (type & MTS) 579 printk(KERN_CONT "MTS "); 580 if (type & D2620) 581 printk(KERN_CONT "D2620 "); 582 if (type & D2633) 583 printk(KERN_CONT "D2633 "); 584 if (type & DTV6) 585 printk(KERN_CONT "DTV6 "); 586 if (type & QAM) 587 printk(KERN_CONT "QAM "); 588 if (type & DTV7) 589 printk(KERN_CONT "DTV7 "); 590 if (type & DTV78) 591 printk(KERN_CONT "DTV78 "); 592 if (type & DTV8) 593 printk(KERN_CONT "DTV8 "); 594 if (type & FM) 595 printk(KERN_CONT "FM "); 596 if (type & INPUT1) 597 printk(KERN_CONT "INPUT1 "); 598 if (type & LCD) 599 printk(KERN_CONT "LCD "); 600 if (type & NOGD) 601 printk(KERN_CONT "NOGD "); 602 if (type & MONO) 603 printk(KERN_CONT "MONO "); 604 if (type & ATSC) 605 printk(KERN_CONT "ATSC "); 606 if (type & IF) 607 printk(KERN_CONT "IF "); 608 if (type & LG60) 609 printk(KERN_CONT "LG60 "); 610 if (type & ATI638) 611 printk(KERN_CONT "ATI638 "); 612 if (type & OREN538) 613 printk(KERN_CONT "OREN538 "); 614 if (type & OREN36) 615 printk(KERN_CONT "OREN36 "); 616 if (type & TOYOTA388) 617 printk(KERN_CONT "TOYOTA388 "); 618 if (type & TOYOTA794) 619 printk(KERN_CONT "TOYOTA794 "); 620 if (type & DIBCOM52) 621 printk(KERN_CONT "DIBCOM52 "); 622 if (type & ZARLINK456) 623 printk(KERN_CONT "ZARLINK456 "); 624 if (type & CHINA) 625 printk(KERN_CONT "CHINA "); 626 if (type & F6MHZ) 627 printk(KERN_CONT "F6MHZ "); 628 if (type & INPUT2) 629 printk(KERN_CONT "INPUT2 "); 630 if (type & SCODE) 631 printk(KERN_CONT "SCODE "); 632 if (type & HAS_IF) 633 printk(KERN_CONT "HAS_IF_%d ", int_freq); 634 } 635 636 static int seek_firmware(struct dvb_frontend *fe, unsigned int type, 637 v4l2_std_id *id) 638 { 639 struct xc4000_priv *priv = fe->tuner_priv; 640 int i, best_i = -1; 641 unsigned int best_nr_diffs = 255U; 642 643 if (!priv->firm) { 644 printk(KERN_ERR "Error! firmware not loaded\n"); 645 return -EINVAL; 646 } 647 648 if (((type & ~SCODE) == 0) && (*id == 0)) 649 *id = V4L2_STD_PAL; 650 651 /* Seek for generic video standard match */ 652 for (i = 0; i < priv->firm_size; i++) { 653 v4l2_std_id id_diff_mask = 654 (priv->firm[i].id ^ (*id)) & (*id); 655 unsigned int type_diff_mask = 656 (priv->firm[i].type ^ type) 657 & (BASE_TYPES | DTV_TYPES | LCD | NOGD | MONO | SCODE); 658 unsigned int nr_diffs; 659 660 if (type_diff_mask 661 & (BASE | INIT1 | FM | DTV6 | DTV7 | DTV78 | DTV8 | SCODE)) 662 continue; 663 664 nr_diffs = hweight64(id_diff_mask) + hweight32(type_diff_mask); 665 if (!nr_diffs) /* Supports all the requested standards */ 666 goto found; 667 668 if (nr_diffs < best_nr_diffs) { 669 best_nr_diffs = nr_diffs; 670 best_i = i; 671 } 672 } 673 674 /* FIXME: Would make sense to seek for type "hint" match ? */ 675 if (best_i < 0) { 676 i = -ENOENT; 677 goto ret; 678 } 679 680 if (best_nr_diffs > 0U) { 681 printk(KERN_WARNING 682 "Selecting best matching firmware (%u bits differ) for " 683 "type=(%x), id %016llx:\n", 684 best_nr_diffs, type, (unsigned long long)*id); 685 i = best_i; 686 } 687 688 found: 689 *id = priv->firm[i].id; 690 691 ret: 692 if (debug) { 693 printk(KERN_DEBUG "%s firmware for type=", 694 (i < 0) ? "Can't find" : "Found"); 695 dump_firm_type(type); 696 printk(KERN_DEBUG "(%x), id %016llx.\n", type, (unsigned long long)*id); 697 } 698 return i; 699 } 700 701 static int load_firmware(struct dvb_frontend *fe, unsigned int type, 702 v4l2_std_id *id) 703 { 704 struct xc4000_priv *priv = fe->tuner_priv; 705 int pos, rc; 706 unsigned char *p; 707 708 pos = seek_firmware(fe, type, id); 709 if (pos < 0) 710 return pos; 711 712 p = priv->firm[pos].ptr; 713 714 /* Don't complain when the request fails because of i2c stretching */ 715 priv->ignore_i2c_write_errors = 1; 716 717 rc = xc_load_i2c_sequence(fe, p); 718 719 priv->ignore_i2c_write_errors = 0; 720 721 return rc; 722 } 723 724 static int xc4000_fwupload(struct dvb_frontend *fe) 725 { 726 struct xc4000_priv *priv = fe->tuner_priv; 727 const struct firmware *fw = NULL; 728 const unsigned char *p, *endp; 729 int rc = 0; 730 int n, n_array; 731 char name[33]; 732 const char *fname; 733 734 if (firmware_name[0] != '\0') { 735 fname = firmware_name; 736 737 dprintk(1, "Reading custom firmware %s\n", fname); 738 rc = request_firmware(&fw, fname, 739 priv->i2c_props.adap->dev.parent); 740 } else { 741 fname = XC4000_DEFAULT_FIRMWARE_NEW; 742 dprintk(1, "Trying to read firmware %s\n", fname); 743 rc = request_firmware(&fw, fname, 744 priv->i2c_props.adap->dev.parent); 745 if (rc == -ENOENT) { 746 fname = XC4000_DEFAULT_FIRMWARE; 747 dprintk(1, "Trying to read firmware %s\n", fname); 748 rc = request_firmware(&fw, fname, 749 priv->i2c_props.adap->dev.parent); 750 } 751 } 752 753 if (rc < 0) { 754 if (rc == -ENOENT) 755 printk(KERN_ERR "Error: firmware %s not found.\n", fname); 756 else 757 printk(KERN_ERR "Error %d while requesting firmware %s\n", 758 rc, fname); 759 760 return rc; 761 } 762 dprintk(1, "Loading Firmware: %s\n", fname); 763 764 p = fw->data; 765 endp = p + fw->size; 766 767 if (fw->size < sizeof(name) - 1 + 2 + 2) { 768 printk(KERN_ERR "Error: firmware file %s has invalid size!\n", 769 fname); 770 goto corrupt; 771 } 772 773 memcpy(name, p, sizeof(name) - 1); 774 name[sizeof(name) - 1] = '\0'; 775 p += sizeof(name) - 1; 776 777 priv->firm_version = get_unaligned_le16(p); 778 p += 2; 779 780 n_array = get_unaligned_le16(p); 781 p += 2; 782 783 dprintk(1, "Loading %d firmware images from %s, type: %s, ver %d.%d\n", 784 n_array, fname, name, 785 priv->firm_version >> 8, priv->firm_version & 0xff); 786 787 priv->firm = kcalloc(n_array, sizeof(*priv->firm), GFP_KERNEL); 788 if (priv->firm == NULL) { 789 printk(KERN_ERR "Not enough memory to load firmware file.\n"); 790 rc = -ENOMEM; 791 goto done; 792 } 793 priv->firm_size = n_array; 794 795 n = -1; 796 while (p < endp) { 797 __u32 type, size; 798 v4l2_std_id id; 799 __u16 int_freq = 0; 800 801 n++; 802 if (n >= n_array) { 803 printk(KERN_ERR "More firmware images in file than " 804 "were expected!\n"); 805 goto corrupt; 806 } 807 808 /* Checks if there's enough bytes to read */ 809 if (endp - p < sizeof(type) + sizeof(id) + sizeof(size)) 810 goto header; 811 812 type = get_unaligned_le32(p); 813 p += sizeof(type); 814 815 id = get_unaligned_le64(p); 816 p += sizeof(id); 817 818 if (type & HAS_IF) { 819 int_freq = get_unaligned_le16(p); 820 p += sizeof(int_freq); 821 if (endp - p < sizeof(size)) 822 goto header; 823 } 824 825 size = get_unaligned_le32(p); 826 p += sizeof(size); 827 828 if (!size || size > endp - p) { 829 printk(KERN_ERR "Firmware type (%x), id %llx is corrupted (size=%d, expected %d)\n", 830 type, (unsigned long long)id, 831 (unsigned)(endp - p), size); 832 goto corrupt; 833 } 834 835 priv->firm[n].ptr = kzalloc(size, GFP_KERNEL); 836 if (priv->firm[n].ptr == NULL) { 837 printk(KERN_ERR "Not enough memory to load firmware file.\n"); 838 rc = -ENOMEM; 839 goto done; 840 } 841 842 if (debug) { 843 printk(KERN_DEBUG "Reading firmware type "); 844 dump_firm_type_and_int_freq(type, int_freq); 845 printk(KERN_DEBUG "(%x), id %llx, size=%d.\n", 846 type, (unsigned long long)id, size); 847 } 848 849 memcpy(priv->firm[n].ptr, p, size); 850 priv->firm[n].type = type; 851 priv->firm[n].id = id; 852 priv->firm[n].size = size; 853 priv->firm[n].int_freq = int_freq; 854 855 p += size; 856 } 857 858 if (n + 1 != priv->firm_size) { 859 printk(KERN_ERR "Firmware file is incomplete!\n"); 860 goto corrupt; 861 } 862 863 goto done; 864 865 header: 866 printk(KERN_ERR "Firmware header is incomplete!\n"); 867 corrupt: 868 rc = -EINVAL; 869 printk(KERN_ERR "Error: firmware file is corrupted!\n"); 870 871 done: 872 release_firmware(fw); 873 if (rc == 0) 874 dprintk(1, "Firmware files loaded.\n"); 875 876 return rc; 877 } 878 879 static int load_scode(struct dvb_frontend *fe, unsigned int type, 880 v4l2_std_id *id, __u16 int_freq, int scode) 881 { 882 struct xc4000_priv *priv = fe->tuner_priv; 883 int pos, rc; 884 unsigned char *p; 885 u8 scode_buf[13]; 886 u8 indirect_mode[5]; 887 888 dprintk(1, "%s called int_freq=%d\n", __func__, int_freq); 889 890 if (!int_freq) { 891 pos = seek_firmware(fe, type, id); 892 if (pos < 0) 893 return pos; 894 } else { 895 for (pos = 0; pos < priv->firm_size; pos++) { 896 if ((priv->firm[pos].int_freq == int_freq) && 897 (priv->firm[pos].type & HAS_IF)) 898 break; 899 } 900 if (pos == priv->firm_size) 901 return -ENOENT; 902 } 903 904 p = priv->firm[pos].ptr; 905 906 if (priv->firm[pos].size != 12 * 16 || scode >= 16) 907 return -EINVAL; 908 p += 12 * scode; 909 910 if (debug) { 911 tuner_info("Loading SCODE for type="); 912 dump_firm_type_and_int_freq(priv->firm[pos].type, 913 priv->firm[pos].int_freq); 914 printk(KERN_CONT "(%x), id %016llx.\n", priv->firm[pos].type, 915 (unsigned long long)*id); 916 } 917 918 scode_buf[0] = 0x00; 919 memcpy(&scode_buf[1], p, 12); 920 921 /* Enter direct-mode */ 922 rc = xc_write_reg(priv, XREG_DIRECTSITTING_MODE, 0); 923 if (rc < 0) { 924 printk(KERN_ERR "failed to put device into direct mode!\n"); 925 return -EIO; 926 } 927 928 rc = xc_send_i2c_data(priv, scode_buf, 13); 929 if (rc != 0) { 930 /* Even if the send failed, make sure we set back to indirect 931 mode */ 932 printk(KERN_ERR "Failed to set scode %d\n", rc); 933 } 934 935 /* Switch back to indirect-mode */ 936 memset(indirect_mode, 0, sizeof(indirect_mode)); 937 indirect_mode[4] = 0x88; 938 xc_send_i2c_data(priv, indirect_mode, sizeof(indirect_mode)); 939 msleep(10); 940 941 return 0; 942 } 943 944 static int check_firmware(struct dvb_frontend *fe, unsigned int type, 945 v4l2_std_id std, __u16 int_freq) 946 { 947 struct xc4000_priv *priv = fe->tuner_priv; 948 struct firmware_properties new_fw; 949 int rc = 0, is_retry = 0; 950 u16 hwmodel; 951 v4l2_std_id std0; 952 u8 hw_major = 0, hw_minor = 0, fw_major = 0, fw_minor = 0; 953 954 dprintk(1, "%s called\n", __func__); 955 956 if (!priv->firm) { 957 rc = xc4000_fwupload(fe); 958 if (rc < 0) 959 return rc; 960 } 961 962 retry: 963 new_fw.type = type; 964 new_fw.id = std; 965 new_fw.std_req = std; 966 new_fw.scode_table = SCODE; 967 new_fw.scode_nr = 0; 968 new_fw.int_freq = int_freq; 969 970 dprintk(1, "checking firmware, user requested type="); 971 if (debug) { 972 dump_firm_type(new_fw.type); 973 printk(KERN_CONT "(%x), id %016llx, ", new_fw.type, 974 (unsigned long long)new_fw.std_req); 975 if (!int_freq) 976 printk(KERN_CONT "scode_tbl "); 977 else 978 printk(KERN_CONT "int_freq %d, ", new_fw.int_freq); 979 printk(KERN_CONT "scode_nr %d\n", new_fw.scode_nr); 980 } 981 982 /* No need to reload base firmware if it matches */ 983 if (priv->cur_fw.type & BASE) { 984 dprintk(1, "BASE firmware not changed.\n"); 985 goto skip_base; 986 } 987 988 /* Updating BASE - forget about all currently loaded firmware */ 989 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw)); 990 991 /* Reset is needed before loading firmware */ 992 rc = xc4000_tuner_reset(fe); 993 if (rc < 0) 994 goto fail; 995 996 /* BASE firmwares are all std0 */ 997 std0 = 0; 998 rc = load_firmware(fe, BASE, &std0); 999 if (rc < 0) { 1000 printk(KERN_ERR "Error %d while loading base firmware\n", rc); 1001 goto fail; 1002 } 1003 1004 /* Load INIT1, if needed */ 1005 dprintk(1, "Load init1 firmware, if exists\n"); 1006 1007 rc = load_firmware(fe, BASE | INIT1, &std0); 1008 if (rc == -ENOENT) 1009 rc = load_firmware(fe, BASE | INIT1, &std0); 1010 if (rc < 0 && rc != -ENOENT) { 1011 tuner_err("Error %d while loading init1 firmware\n", 1012 rc); 1013 goto fail; 1014 } 1015 1016 skip_base: 1017 /* 1018 * No need to reload standard specific firmware if base firmware 1019 * was not reloaded and requested video standards have not changed. 1020 */ 1021 if (priv->cur_fw.type == (BASE | new_fw.type) && 1022 priv->cur_fw.std_req == std) { 1023 dprintk(1, "Std-specific firmware already loaded.\n"); 1024 goto skip_std_specific; 1025 } 1026 1027 /* Reloading std-specific firmware forces a SCODE update */ 1028 priv->cur_fw.scode_table = 0; 1029 1030 /* Load the standard firmware */ 1031 rc = load_firmware(fe, new_fw.type, &new_fw.id); 1032 1033 if (rc < 0) 1034 goto fail; 1035 1036 skip_std_specific: 1037 if (priv->cur_fw.scode_table == new_fw.scode_table && 1038 priv->cur_fw.scode_nr == new_fw.scode_nr) { 1039 dprintk(1, "SCODE firmware already loaded.\n"); 1040 goto check_device; 1041 } 1042 1043 /* Load SCODE firmware, if exists */ 1044 rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id, 1045 new_fw.int_freq, new_fw.scode_nr); 1046 if (rc != 0) 1047 dprintk(1, "load scode failed %d\n", rc); 1048 1049 check_device: 1050 rc = xc4000_readreg(priv, XREG_PRODUCT_ID, &hwmodel); 1051 1052 if (xc_get_version(priv, &hw_major, &hw_minor, &fw_major, 1053 &fw_minor) != 0) { 1054 printk(KERN_ERR "Unable to read tuner registers.\n"); 1055 goto fail; 1056 } 1057 1058 dprintk(1, "Device is Xceive %d version %d.%d, " 1059 "firmware version %d.%d\n", 1060 hwmodel, hw_major, hw_minor, fw_major, fw_minor); 1061 1062 /* Check firmware version against what we downloaded. */ 1063 if (priv->firm_version != ((fw_major << 8) | fw_minor)) { 1064 printk(KERN_WARNING 1065 "Incorrect readback of firmware version %d.%d.\n", 1066 fw_major, fw_minor); 1067 goto fail; 1068 } 1069 1070 /* Check that the tuner hardware model remains consistent over time. */ 1071 if (priv->hwmodel == 0 && 1072 (hwmodel == XC_PRODUCT_ID_XC4000 || 1073 hwmodel == XC_PRODUCT_ID_XC4100)) { 1074 priv->hwmodel = hwmodel; 1075 priv->hwvers = (hw_major << 8) | hw_minor; 1076 } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel || 1077 priv->hwvers != ((hw_major << 8) | hw_minor)) { 1078 printk(KERN_WARNING 1079 "Read invalid device hardware information - tuner " 1080 "hung?\n"); 1081 goto fail; 1082 } 1083 1084 priv->cur_fw = new_fw; 1085 1086 /* 1087 * By setting BASE in cur_fw.type only after successfully loading all 1088 * firmwares, we can: 1089 * 1. Identify that BASE firmware with type=0 has been loaded; 1090 * 2. Tell whether BASE firmware was just changed the next time through. 1091 */ 1092 priv->cur_fw.type |= BASE; 1093 1094 return 0; 1095 1096 fail: 1097 memset(&priv->cur_fw, 0, sizeof(priv->cur_fw)); 1098 if (!is_retry) { 1099 msleep(50); 1100 is_retry = 1; 1101 dprintk(1, "Retrying firmware load\n"); 1102 goto retry; 1103 } 1104 1105 if (rc == -ENOENT) 1106 rc = -EINVAL; 1107 return rc; 1108 } 1109 1110 static void xc_debug_dump(struct xc4000_priv *priv) 1111 { 1112 u16 adc_envelope; 1113 u32 freq_error_hz = 0; 1114 u16 lock_status; 1115 u32 hsync_freq_hz = 0; 1116 u16 frame_lines; 1117 u16 quality; 1118 u16 signal = 0; 1119 u16 noise = 0; 1120 u8 hw_majorversion = 0, hw_minorversion = 0; 1121 u8 fw_majorversion = 0, fw_minorversion = 0; 1122 1123 xc_get_adc_envelope(priv, &adc_envelope); 1124 dprintk(1, "*** ADC envelope (0-1023) = %d\n", adc_envelope); 1125 1126 xc_get_frequency_error(priv, &freq_error_hz); 1127 dprintk(1, "*** Frequency error = %d Hz\n", freq_error_hz); 1128 1129 xc_get_lock_status(priv, &lock_status); 1130 dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %d\n", 1131 lock_status); 1132 1133 xc_get_version(priv, &hw_majorversion, &hw_minorversion, 1134 &fw_majorversion, &fw_minorversion); 1135 dprintk(1, "*** HW: V%02x.%02x, FW: V%02x.%02x\n", 1136 hw_majorversion, hw_minorversion, 1137 fw_majorversion, fw_minorversion); 1138 1139 if (priv->video_standard < XC4000_DTV6) { 1140 xc_get_hsync_freq(priv, &hsync_freq_hz); 1141 dprintk(1, "*** Horizontal sync frequency = %d Hz\n", 1142 hsync_freq_hz); 1143 1144 xc_get_frame_lines(priv, &frame_lines); 1145 dprintk(1, "*** Frame lines = %d\n", frame_lines); 1146 } 1147 1148 xc_get_quality(priv, &quality); 1149 dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality); 1150 1151 xc_get_signal_level(priv, &signal); 1152 dprintk(1, "*** Signal level = -%ddB (%d)\n", signal >> 8, signal); 1153 1154 xc_get_noise_level(priv, &noise); 1155 dprintk(1, "*** Noise level = %ddB (%d)\n", noise >> 8, noise); 1156 } 1157 1158 static int xc4000_set_params(struct dvb_frontend *fe) 1159 { 1160 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 1161 u32 delsys = c->delivery_system; 1162 u32 bw = c->bandwidth_hz; 1163 struct xc4000_priv *priv = fe->tuner_priv; 1164 unsigned int type; 1165 int ret = -EREMOTEIO; 1166 1167 dprintk(1, "%s() frequency=%d (Hz)\n", __func__, c->frequency); 1168 1169 mutex_lock(&priv->lock); 1170 1171 switch (delsys) { 1172 case SYS_ATSC: 1173 dprintk(1, "%s() VSB modulation\n", __func__); 1174 priv->rf_mode = XC_RF_MODE_AIR; 1175 priv->freq_offset = 1750000; 1176 priv->video_standard = XC4000_DTV6; 1177 type = DTV6; 1178 break; 1179 case SYS_DVBC_ANNEX_B: 1180 dprintk(1, "%s() QAM modulation\n", __func__); 1181 priv->rf_mode = XC_RF_MODE_CABLE; 1182 priv->freq_offset = 1750000; 1183 priv->video_standard = XC4000_DTV6; 1184 type = DTV6; 1185 break; 1186 case SYS_DVBT: 1187 case SYS_DVBT2: 1188 dprintk(1, "%s() OFDM\n", __func__); 1189 if (bw == 0) { 1190 if (c->frequency < 400000000) { 1191 priv->freq_offset = 2250000; 1192 } else { 1193 priv->freq_offset = 2750000; 1194 } 1195 priv->video_standard = XC4000_DTV7_8; 1196 type = DTV78; 1197 } else if (bw <= 6000000) { 1198 priv->video_standard = XC4000_DTV6; 1199 priv->freq_offset = 1750000; 1200 type = DTV6; 1201 } else if (bw <= 7000000) { 1202 priv->video_standard = XC4000_DTV7; 1203 priv->freq_offset = 2250000; 1204 type = DTV7; 1205 } else { 1206 priv->video_standard = XC4000_DTV8; 1207 priv->freq_offset = 2750000; 1208 type = DTV8; 1209 } 1210 priv->rf_mode = XC_RF_MODE_AIR; 1211 break; 1212 default: 1213 printk(KERN_ERR "xc4000 delivery system not supported!\n"); 1214 ret = -EINVAL; 1215 goto fail; 1216 } 1217 1218 priv->freq_hz = c->frequency - priv->freq_offset; 1219 1220 dprintk(1, "%s() frequency=%d (compensated)\n", 1221 __func__, priv->freq_hz); 1222 1223 /* Make sure the correct firmware type is loaded */ 1224 if (check_firmware(fe, type, 0, priv->if_khz) != 0) 1225 goto fail; 1226 1227 priv->bandwidth = c->bandwidth_hz; 1228 1229 ret = xc_set_signal_source(priv, priv->rf_mode); 1230 if (ret != 0) { 1231 printk(KERN_ERR "xc4000: xc_set_signal_source(%d) failed\n", 1232 priv->rf_mode); 1233 goto fail; 1234 } else { 1235 u16 video_mode, audio_mode; 1236 video_mode = xc4000_standard[priv->video_standard].video_mode; 1237 audio_mode = xc4000_standard[priv->video_standard].audio_mode; 1238 if (type == DTV6 && priv->firm_version != 0x0102) 1239 video_mode |= 0x0001; 1240 ret = xc_set_tv_standard(priv, video_mode, audio_mode); 1241 if (ret != 0) { 1242 printk(KERN_ERR "xc4000: xc_set_tv_standard failed\n"); 1243 /* DJH - do not return when it fails... */ 1244 /* goto fail; */ 1245 } 1246 } 1247 1248 if (xc_write_reg(priv, XREG_D_CODE, 0) == 0) 1249 ret = 0; 1250 if (priv->dvb_amplitude != 0) { 1251 if (xc_write_reg(priv, XREG_AMPLITUDE, 1252 (priv->firm_version != 0x0102 || 1253 priv->dvb_amplitude != 134 ? 1254 priv->dvb_amplitude : 132)) != 0) 1255 ret = -EREMOTEIO; 1256 } 1257 if (priv->set_smoothedcvbs != 0) { 1258 if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0) 1259 ret = -EREMOTEIO; 1260 } 1261 if (ret != 0) { 1262 printk(KERN_ERR "xc4000: setting registers failed\n"); 1263 /* goto fail; */ 1264 } 1265 1266 xc_tune_channel(priv, priv->freq_hz); 1267 1268 ret = 0; 1269 1270 fail: 1271 mutex_unlock(&priv->lock); 1272 1273 return ret; 1274 } 1275 1276 static int xc4000_set_analog_params(struct dvb_frontend *fe, 1277 struct analog_parameters *params) 1278 { 1279 struct xc4000_priv *priv = fe->tuner_priv; 1280 unsigned int type = 0; 1281 int ret = -EREMOTEIO; 1282 1283 if (params->mode == V4L2_TUNER_RADIO) { 1284 dprintk(1, "%s() frequency=%d (in units of 62.5Hz)\n", 1285 __func__, params->frequency); 1286 1287 mutex_lock(&priv->lock); 1288 1289 params->std = 0; 1290 priv->freq_hz = params->frequency * 125L / 2; 1291 1292 if (audio_std & XC4000_AUDIO_STD_INPUT1) { 1293 priv->video_standard = XC4000_FM_Radio_INPUT1; 1294 type = FM | INPUT1; 1295 } else { 1296 priv->video_standard = XC4000_FM_Radio_INPUT2; 1297 type = FM | INPUT2; 1298 } 1299 1300 goto tune_channel; 1301 } 1302 1303 dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n", 1304 __func__, params->frequency); 1305 1306 mutex_lock(&priv->lock); 1307 1308 /* params->frequency is in units of 62.5khz */ 1309 priv->freq_hz = params->frequency * 62500; 1310 1311 params->std &= V4L2_STD_ALL; 1312 /* if std is not defined, choose one */ 1313 if (!params->std) 1314 params->std = V4L2_STD_PAL_BG; 1315 1316 if (audio_std & XC4000_AUDIO_STD_MONO) 1317 type = MONO; 1318 1319 if (params->std & V4L2_STD_MN) { 1320 params->std = V4L2_STD_MN; 1321 if (audio_std & XC4000_AUDIO_STD_MONO) { 1322 priv->video_standard = XC4000_MN_NTSC_PAL_Mono; 1323 } else if (audio_std & XC4000_AUDIO_STD_A2) { 1324 params->std |= V4L2_STD_A2; 1325 priv->video_standard = XC4000_MN_NTSC_PAL_A2; 1326 } else { 1327 params->std |= V4L2_STD_BTSC; 1328 priv->video_standard = XC4000_MN_NTSC_PAL_BTSC; 1329 } 1330 goto tune_channel; 1331 } 1332 1333 if (params->std & V4L2_STD_PAL_BG) { 1334 params->std = V4L2_STD_PAL_BG; 1335 if (audio_std & XC4000_AUDIO_STD_MONO) { 1336 priv->video_standard = XC4000_BG_PAL_MONO; 1337 } else if (!(audio_std & XC4000_AUDIO_STD_A2)) { 1338 if (!(audio_std & XC4000_AUDIO_STD_B)) { 1339 params->std |= V4L2_STD_NICAM_A; 1340 priv->video_standard = XC4000_BG_PAL_NICAM; 1341 } else { 1342 params->std |= V4L2_STD_NICAM_B; 1343 priv->video_standard = XC4000_BG_PAL_NICAM; 1344 } 1345 } else { 1346 if (!(audio_std & XC4000_AUDIO_STD_B)) { 1347 params->std |= V4L2_STD_A2_A; 1348 priv->video_standard = XC4000_BG_PAL_A2; 1349 } else { 1350 params->std |= V4L2_STD_A2_B; 1351 priv->video_standard = XC4000_BG_PAL_A2; 1352 } 1353 } 1354 goto tune_channel; 1355 } 1356 1357 if (params->std & V4L2_STD_PAL_I) { 1358 /* default to NICAM audio standard */ 1359 params->std = V4L2_STD_PAL_I | V4L2_STD_NICAM; 1360 if (audio_std & XC4000_AUDIO_STD_MONO) 1361 priv->video_standard = XC4000_I_PAL_NICAM_MONO; 1362 else 1363 priv->video_standard = XC4000_I_PAL_NICAM; 1364 goto tune_channel; 1365 } 1366 1367 if (params->std & V4L2_STD_PAL_DK) { 1368 params->std = V4L2_STD_PAL_DK; 1369 if (audio_std & XC4000_AUDIO_STD_MONO) { 1370 priv->video_standard = XC4000_DK_PAL_MONO; 1371 } else if (audio_std & XC4000_AUDIO_STD_A2) { 1372 params->std |= V4L2_STD_A2; 1373 priv->video_standard = XC4000_DK_PAL_A2; 1374 } else { 1375 params->std |= V4L2_STD_NICAM; 1376 priv->video_standard = XC4000_DK_PAL_NICAM; 1377 } 1378 goto tune_channel; 1379 } 1380 1381 if (params->std & V4L2_STD_SECAM_DK) { 1382 /* default to A2 audio standard */ 1383 params->std = V4L2_STD_SECAM_DK | V4L2_STD_A2; 1384 if (audio_std & XC4000_AUDIO_STD_L) { 1385 type = 0; 1386 priv->video_standard = XC4000_DK_SECAM_NICAM; 1387 } else if (audio_std & XC4000_AUDIO_STD_MONO) { 1388 priv->video_standard = XC4000_DK_SECAM_A2MONO; 1389 } else if (audio_std & XC4000_AUDIO_STD_K3) { 1390 params->std |= V4L2_STD_SECAM_K3; 1391 priv->video_standard = XC4000_DK_SECAM_A2LDK3; 1392 } else { 1393 priv->video_standard = XC4000_DK_SECAM_A2DK1; 1394 } 1395 goto tune_channel; 1396 } 1397 1398 if (params->std & V4L2_STD_SECAM_L) { 1399 /* default to NICAM audio standard */ 1400 type = 0; 1401 params->std = V4L2_STD_SECAM_L | V4L2_STD_NICAM; 1402 priv->video_standard = XC4000_L_SECAM_NICAM; 1403 goto tune_channel; 1404 } 1405 1406 if (params->std & V4L2_STD_SECAM_LC) { 1407 /* default to NICAM audio standard */ 1408 type = 0; 1409 params->std = V4L2_STD_SECAM_LC | V4L2_STD_NICAM; 1410 priv->video_standard = XC4000_LC_SECAM_NICAM; 1411 goto tune_channel; 1412 } 1413 1414 tune_channel: 1415 /* FIXME: it could be air. */ 1416 priv->rf_mode = XC_RF_MODE_CABLE; 1417 1418 if (check_firmware(fe, type, params->std, 1419 xc4000_standard[priv->video_standard].int_freq) != 0) 1420 goto fail; 1421 1422 ret = xc_set_signal_source(priv, priv->rf_mode); 1423 if (ret != 0) { 1424 printk(KERN_ERR 1425 "xc4000: xc_set_signal_source(%d) failed\n", 1426 priv->rf_mode); 1427 goto fail; 1428 } else { 1429 u16 video_mode, audio_mode; 1430 video_mode = xc4000_standard[priv->video_standard].video_mode; 1431 audio_mode = xc4000_standard[priv->video_standard].audio_mode; 1432 if (priv->video_standard < XC4000_BG_PAL_A2) { 1433 if (type & NOGD) 1434 video_mode &= 0xFF7F; 1435 } else if (priv->video_standard < XC4000_I_PAL_NICAM) { 1436 if (priv->firm_version == 0x0102) 1437 video_mode &= 0xFEFF; 1438 if (audio_std & XC4000_AUDIO_STD_B) 1439 video_mode |= 0x0080; 1440 } 1441 ret = xc_set_tv_standard(priv, video_mode, audio_mode); 1442 if (ret != 0) { 1443 printk(KERN_ERR "xc4000: xc_set_tv_standard failed\n"); 1444 goto fail; 1445 } 1446 } 1447 1448 if (xc_write_reg(priv, XREG_D_CODE, 0) == 0) 1449 ret = 0; 1450 if (xc_write_reg(priv, XREG_AMPLITUDE, 1) != 0) 1451 ret = -EREMOTEIO; 1452 if (priv->set_smoothedcvbs != 0) { 1453 if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0) 1454 ret = -EREMOTEIO; 1455 } 1456 if (ret != 0) { 1457 printk(KERN_ERR "xc4000: setting registers failed\n"); 1458 goto fail; 1459 } 1460 1461 xc_tune_channel(priv, priv->freq_hz); 1462 1463 ret = 0; 1464 1465 fail: 1466 mutex_unlock(&priv->lock); 1467 1468 return ret; 1469 } 1470 1471 static int xc4000_get_signal(struct dvb_frontend *fe, u16 *strength) 1472 { 1473 struct xc4000_priv *priv = fe->tuner_priv; 1474 u16 value = 0; 1475 int rc; 1476 1477 mutex_lock(&priv->lock); 1478 rc = xc4000_readreg(priv, XREG_SIGNAL_LEVEL, &value); 1479 mutex_unlock(&priv->lock); 1480 1481 if (rc < 0) 1482 goto ret; 1483 1484 /* Informations from real testing of DVB-T and radio part, 1485 coeficient for one dB is 0xff. 1486 */ 1487 tuner_dbg("Signal strength: -%ddB (%05d)\n", value >> 8, value); 1488 1489 /* all known digital modes */ 1490 if ((priv->video_standard == XC4000_DTV6) || 1491 (priv->video_standard == XC4000_DTV7) || 1492 (priv->video_standard == XC4000_DTV7_8) || 1493 (priv->video_standard == XC4000_DTV8)) 1494 goto digital; 1495 1496 /* Analog mode has NOISE LEVEL important, signal 1497 depends only on gain of antenna and amplifiers, 1498 but it doesn't tell anything about real quality 1499 of reception. 1500 */ 1501 mutex_lock(&priv->lock); 1502 rc = xc4000_readreg(priv, XREG_NOISE_LEVEL, &value); 1503 mutex_unlock(&priv->lock); 1504 1505 tuner_dbg("Noise level: %ddB (%05d)\n", value >> 8, value); 1506 1507 /* highest noise level: 32dB */ 1508 if (value >= 0x2000) { 1509 value = 0; 1510 } else { 1511 value = (~value << 3) & 0xffff; 1512 } 1513 1514 goto ret; 1515 1516 /* Digital mode has SIGNAL LEVEL important and real 1517 noise level is stored in demodulator registers. 1518 */ 1519 digital: 1520 /* best signal: -50dB */ 1521 if (value <= 0x3200) { 1522 value = 0xffff; 1523 /* minimum: -114dB - should be 0x7200 but real zero is 0x713A */ 1524 } else if (value >= 0x713A) { 1525 value = 0; 1526 } else { 1527 value = ~(value - 0x3200) << 2; 1528 } 1529 1530 ret: 1531 *strength = value; 1532 1533 return rc; 1534 } 1535 1536 static int xc4000_get_frequency(struct dvb_frontend *fe, u32 *freq) 1537 { 1538 struct xc4000_priv *priv = fe->tuner_priv; 1539 1540 *freq = priv->freq_hz + priv->freq_offset; 1541 1542 if (debug) { 1543 mutex_lock(&priv->lock); 1544 if ((priv->cur_fw.type 1545 & (BASE | FM | DTV6 | DTV7 | DTV78 | DTV8)) == BASE) { 1546 u16 snr = 0; 1547 if (xc4000_readreg(priv, XREG_SNR, &snr) == 0) { 1548 mutex_unlock(&priv->lock); 1549 dprintk(1, "%s() freq = %u, SNR = %d\n", 1550 __func__, *freq, snr); 1551 return 0; 1552 } 1553 } 1554 mutex_unlock(&priv->lock); 1555 } 1556 1557 dprintk(1, "%s()\n", __func__); 1558 1559 return 0; 1560 } 1561 1562 static int xc4000_get_bandwidth(struct dvb_frontend *fe, u32 *bw) 1563 { 1564 struct xc4000_priv *priv = fe->tuner_priv; 1565 dprintk(1, "%s()\n", __func__); 1566 1567 *bw = priv->bandwidth; 1568 return 0; 1569 } 1570 1571 static int xc4000_get_status(struct dvb_frontend *fe, u32 *status) 1572 { 1573 struct xc4000_priv *priv = fe->tuner_priv; 1574 u16 lock_status = 0; 1575 1576 mutex_lock(&priv->lock); 1577 1578 if (priv->cur_fw.type & BASE) 1579 xc_get_lock_status(priv, &lock_status); 1580 1581 *status = (lock_status == 1 ? 1582 TUNER_STATUS_LOCKED | TUNER_STATUS_STEREO : 0); 1583 if (priv->cur_fw.type & (DTV6 | DTV7 | DTV78 | DTV8)) 1584 *status &= (~TUNER_STATUS_STEREO); 1585 1586 mutex_unlock(&priv->lock); 1587 1588 dprintk(2, "%s() lock_status = %d\n", __func__, lock_status); 1589 1590 return 0; 1591 } 1592 1593 static int xc4000_sleep(struct dvb_frontend *fe) 1594 { 1595 struct xc4000_priv *priv = fe->tuner_priv; 1596 int ret = 0; 1597 1598 dprintk(1, "%s()\n", __func__); 1599 1600 mutex_lock(&priv->lock); 1601 1602 /* Avoid firmware reload on slow devices */ 1603 if ((no_poweroff == 2 || 1604 (no_poweroff == 0 && priv->default_pm != 0)) && 1605 (priv->cur_fw.type & BASE) != 0) { 1606 /* force reset and firmware reload */ 1607 priv->cur_fw.type = XC_POWERED_DOWN; 1608 1609 if (xc_write_reg(priv, XREG_POWER_DOWN, 0) != 0) { 1610 printk(KERN_ERR 1611 "xc4000: %s() unable to shutdown tuner\n", 1612 __func__); 1613 ret = -EREMOTEIO; 1614 } 1615 msleep(20); 1616 } 1617 1618 mutex_unlock(&priv->lock); 1619 1620 return ret; 1621 } 1622 1623 static int xc4000_init(struct dvb_frontend *fe) 1624 { 1625 dprintk(1, "%s()\n", __func__); 1626 1627 return 0; 1628 } 1629 1630 static int xc4000_release(struct dvb_frontend *fe) 1631 { 1632 struct xc4000_priv *priv = fe->tuner_priv; 1633 1634 dprintk(1, "%s()\n", __func__); 1635 1636 mutex_lock(&xc4000_list_mutex); 1637 1638 if (priv) 1639 hybrid_tuner_release_state(priv); 1640 1641 mutex_unlock(&xc4000_list_mutex); 1642 1643 fe->tuner_priv = NULL; 1644 1645 return 0; 1646 } 1647 1648 static const struct dvb_tuner_ops xc4000_tuner_ops = { 1649 .info = { 1650 .name = "Xceive XC4000", 1651 .frequency_min = 1000000, 1652 .frequency_max = 1023000000, 1653 .frequency_step = 50000, 1654 }, 1655 1656 .release = xc4000_release, 1657 .init = xc4000_init, 1658 .sleep = xc4000_sleep, 1659 1660 .set_params = xc4000_set_params, 1661 .set_analog_params = xc4000_set_analog_params, 1662 .get_frequency = xc4000_get_frequency, 1663 .get_rf_strength = xc4000_get_signal, 1664 .get_bandwidth = xc4000_get_bandwidth, 1665 .get_status = xc4000_get_status 1666 }; 1667 1668 struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe, 1669 struct i2c_adapter *i2c, 1670 struct xc4000_config *cfg) 1671 { 1672 struct xc4000_priv *priv = NULL; 1673 int instance; 1674 u16 id = 0; 1675 1676 dprintk(1, "%s(%d-%04x)\n", __func__, 1677 i2c ? i2c_adapter_id(i2c) : -1, 1678 cfg ? cfg->i2c_address : -1); 1679 1680 mutex_lock(&xc4000_list_mutex); 1681 1682 instance = hybrid_tuner_request_state(struct xc4000_priv, priv, 1683 hybrid_tuner_instance_list, 1684 i2c, cfg->i2c_address, "xc4000"); 1685 switch (instance) { 1686 case 0: 1687 goto fail; 1688 case 1: 1689 /* new tuner instance */ 1690 priv->bandwidth = 6000000; 1691 /* set default configuration */ 1692 priv->if_khz = 4560; 1693 priv->default_pm = 0; 1694 priv->dvb_amplitude = 134; 1695 priv->set_smoothedcvbs = 1; 1696 mutex_init(&priv->lock); 1697 fe->tuner_priv = priv; 1698 break; 1699 default: 1700 /* existing tuner instance */ 1701 fe->tuner_priv = priv; 1702 break; 1703 } 1704 1705 if (cfg->if_khz != 0) { 1706 /* copy configuration if provided by the caller */ 1707 priv->if_khz = cfg->if_khz; 1708 priv->default_pm = cfg->default_pm; 1709 priv->dvb_amplitude = cfg->dvb_amplitude; 1710 priv->set_smoothedcvbs = cfg->set_smoothedcvbs; 1711 } 1712 1713 /* Check if firmware has been loaded. It is possible that another 1714 instance of the driver has loaded the firmware. 1715 */ 1716 1717 if (instance == 1) { 1718 if (xc4000_readreg(priv, XREG_PRODUCT_ID, &id) != 0) 1719 goto fail; 1720 } else { 1721 id = ((priv->cur_fw.type & BASE) != 0 ? 1722 priv->hwmodel : XC_PRODUCT_ID_FW_NOT_LOADED); 1723 } 1724 1725 switch (id) { 1726 case XC_PRODUCT_ID_XC4000: 1727 case XC_PRODUCT_ID_XC4100: 1728 printk(KERN_INFO 1729 "xc4000: Successfully identified at address 0x%02x\n", 1730 cfg->i2c_address); 1731 printk(KERN_INFO 1732 "xc4000: Firmware has been loaded previously\n"); 1733 break; 1734 case XC_PRODUCT_ID_FW_NOT_LOADED: 1735 printk(KERN_INFO 1736 "xc4000: Successfully identified at address 0x%02x\n", 1737 cfg->i2c_address); 1738 printk(KERN_INFO 1739 "xc4000: Firmware has not been loaded previously\n"); 1740 break; 1741 default: 1742 printk(KERN_ERR 1743 "xc4000: Device not found at addr 0x%02x (0x%x)\n", 1744 cfg->i2c_address, id); 1745 goto fail; 1746 } 1747 1748 mutex_unlock(&xc4000_list_mutex); 1749 1750 memcpy(&fe->ops.tuner_ops, &xc4000_tuner_ops, 1751 sizeof(struct dvb_tuner_ops)); 1752 1753 if (instance == 1) { 1754 int ret; 1755 mutex_lock(&priv->lock); 1756 ret = xc4000_fwupload(fe); 1757 mutex_unlock(&priv->lock); 1758 if (ret != 0) 1759 goto fail2; 1760 } 1761 1762 return fe; 1763 fail: 1764 mutex_unlock(&xc4000_list_mutex); 1765 fail2: 1766 xc4000_release(fe); 1767 return NULL; 1768 } 1769 EXPORT_SYMBOL(xc4000_attach); 1770 1771 MODULE_AUTHOR("Steven Toth, Davide Ferri"); 1772 MODULE_DESCRIPTION("Xceive xc4000 silicon tuner driver"); 1773 MODULE_LICENSE("GPL"); 1774 MODULE_FIRMWARE(XC4000_DEFAULT_FIRMWARE_NEW); 1775 MODULE_FIRMWARE(XC4000_DEFAULT_FIRMWARE); 1776