1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Afatech AF9013 demodulator driver 4 * 5 * Copyright (C) 2007 Antti Palosaari <crope@iki.fi> 6 * Copyright (C) 2011 Antti Palosaari <crope@iki.fi> 7 * 8 * Thanks to Afatech who kindly provided information. 9 */ 10 11 #include "af9013_priv.h" 12 13 struct af9013_state { 14 struct i2c_client *client; 15 struct regmap *regmap; 16 struct i2c_mux_core *muxc; 17 struct dvb_frontend fe; 18 u32 clk; 19 u8 tuner; 20 u32 if_frequency; 21 u8 ts_mode; 22 u8 ts_output_pin; 23 bool spec_inv; 24 u8 api_version[4]; 25 u8 gpio[4]; 26 27 u32 bandwidth_hz; 28 enum fe_status fe_status; 29 /* RF and IF AGC limits used for signal strength calc */ 30 u8 strength_en, rf_agc_50, rf_agc_80, if_agc_50, if_agc_80; 31 unsigned long set_frontend_jiffies; 32 unsigned long read_status_jiffies; 33 unsigned long strength_jiffies; 34 unsigned long cnr_jiffies; 35 unsigned long ber_ucb_jiffies; 36 u16 dvbv3_snr; 37 u16 dvbv3_strength; 38 u32 dvbv3_ber; 39 u32 dvbv3_ucblocks; 40 bool first_tune; 41 }; 42 af9013_set_gpio(struct af9013_state * state,u8 gpio,u8 gpioval)43 static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval) 44 { 45 struct i2c_client *client = state->client; 46 int ret; 47 u8 pos; 48 u16 addr; 49 50 dev_dbg(&client->dev, "gpio %u, gpioval %02x\n", gpio, gpioval); 51 52 /* 53 * GPIO0 & GPIO1 0xd735 54 * GPIO2 & GPIO3 0xd736 55 */ 56 57 switch (gpio) { 58 case 0: 59 case 1: 60 addr = 0xd735; 61 break; 62 case 2: 63 case 3: 64 addr = 0xd736; 65 break; 66 67 default: 68 ret = -EINVAL; 69 goto err; 70 } 71 72 switch (gpio) { 73 case 0: 74 case 2: 75 pos = 0; 76 break; 77 case 1: 78 case 3: 79 default: 80 pos = 4; 81 break; 82 } 83 84 ret = regmap_update_bits(state->regmap, addr, 0x0f << pos, 85 gpioval << pos); 86 if (ret) 87 goto err; 88 89 return 0; 90 err: 91 dev_dbg(&client->dev, "failed %d\n", ret); 92 return ret; 93 } 94 af9013_get_tune_settings(struct dvb_frontend * fe,struct dvb_frontend_tune_settings * fesettings)95 static int af9013_get_tune_settings(struct dvb_frontend *fe, 96 struct dvb_frontend_tune_settings *fesettings) 97 { 98 fesettings->min_delay_ms = 800; 99 fesettings->step_size = 0; 100 fesettings->max_drift = 0; 101 102 return 0; 103 } 104 af9013_set_frontend(struct dvb_frontend * fe)105 static int af9013_set_frontend(struct dvb_frontend *fe) 106 { 107 struct af9013_state *state = fe->demodulator_priv; 108 struct i2c_client *client = state->client; 109 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 110 int ret, i, sampling_freq; 111 bool auto_mode, spec_inv; 112 u8 buf[6]; 113 u32 if_frequency, freq_cw; 114 115 dev_dbg(&client->dev, "frequency %u, bandwidth_hz %u\n", 116 c->frequency, c->bandwidth_hz); 117 118 /* program tuner */ 119 if (fe->ops.tuner_ops.set_params) { 120 ret = fe->ops.tuner_ops.set_params(fe); 121 if (ret) 122 goto err; 123 } 124 125 /* program CFOE coefficients */ 126 if (c->bandwidth_hz != state->bandwidth_hz) { 127 for (i = 0; i < ARRAY_SIZE(coeff_lut); i++) { 128 if (coeff_lut[i].clock == state->clk && 129 coeff_lut[i].bandwidth_hz == c->bandwidth_hz) { 130 break; 131 } 132 } 133 134 /* Return an error if can't find bandwidth or the right clock */ 135 if (i == ARRAY_SIZE(coeff_lut)) { 136 ret = -EINVAL; 137 goto err; 138 } 139 140 ret = regmap_bulk_write(state->regmap, 0xae00, coeff_lut[i].val, 141 sizeof(coeff_lut[i].val)); 142 if (ret) 143 goto err; 144 } 145 146 /* program frequency control */ 147 if (c->bandwidth_hz != state->bandwidth_hz || state->first_tune) { 148 /* get used IF frequency */ 149 if (fe->ops.tuner_ops.get_if_frequency) { 150 ret = fe->ops.tuner_ops.get_if_frequency(fe, 151 &if_frequency); 152 if (ret) 153 goto err; 154 } else { 155 if_frequency = state->if_frequency; 156 } 157 158 dev_dbg(&client->dev, "if_frequency %u\n", if_frequency); 159 160 sampling_freq = if_frequency; 161 162 while (sampling_freq > (state->clk / 2)) 163 sampling_freq -= state->clk; 164 165 if (sampling_freq < 0) { 166 sampling_freq *= -1; 167 spec_inv = state->spec_inv; 168 } else { 169 spec_inv = !state->spec_inv; 170 } 171 172 freq_cw = DIV_ROUND_CLOSEST_ULL((u64)sampling_freq * 0x800000, 173 state->clk); 174 175 if (spec_inv) 176 freq_cw = 0x800000 - freq_cw; 177 178 buf[0] = (freq_cw >> 0) & 0xff; 179 buf[1] = (freq_cw >> 8) & 0xff; 180 buf[2] = (freq_cw >> 16) & 0x7f; 181 182 freq_cw = 0x800000 - freq_cw; 183 184 buf[3] = (freq_cw >> 0) & 0xff; 185 buf[4] = (freq_cw >> 8) & 0xff; 186 buf[5] = (freq_cw >> 16) & 0x7f; 187 188 ret = regmap_bulk_write(state->regmap, 0xd140, buf, 3); 189 if (ret) 190 goto err; 191 192 ret = regmap_bulk_write(state->regmap, 0x9be7, buf, 6); 193 if (ret) 194 goto err; 195 } 196 197 /* clear TPS lock flag */ 198 ret = regmap_update_bits(state->regmap, 0xd330, 0x08, 0x08); 199 if (ret) 200 goto err; 201 202 /* clear MPEG2 lock flag */ 203 ret = regmap_update_bits(state->regmap, 0xd507, 0x40, 0x00); 204 if (ret) 205 goto err; 206 207 /* empty channel function */ 208 ret = regmap_update_bits(state->regmap, 0x9bfe, 0x01, 0x00); 209 if (ret) 210 goto err; 211 212 /* empty DVB-T channel function */ 213 ret = regmap_update_bits(state->regmap, 0x9bc2, 0x01, 0x00); 214 if (ret) 215 goto err; 216 217 /* transmission parameters */ 218 auto_mode = false; 219 memset(buf, 0, 3); 220 221 switch (c->transmission_mode) { 222 case TRANSMISSION_MODE_AUTO: 223 auto_mode = true; 224 break; 225 case TRANSMISSION_MODE_2K: 226 break; 227 case TRANSMISSION_MODE_8K: 228 buf[0] |= (1 << 0); 229 break; 230 default: 231 dev_dbg(&client->dev, "invalid transmission_mode\n"); 232 auto_mode = true; 233 } 234 235 switch (c->guard_interval) { 236 case GUARD_INTERVAL_AUTO: 237 auto_mode = true; 238 break; 239 case GUARD_INTERVAL_1_32: 240 break; 241 case GUARD_INTERVAL_1_16: 242 buf[0] |= (1 << 2); 243 break; 244 case GUARD_INTERVAL_1_8: 245 buf[0] |= (2 << 2); 246 break; 247 case GUARD_INTERVAL_1_4: 248 buf[0] |= (3 << 2); 249 break; 250 default: 251 dev_dbg(&client->dev, "invalid guard_interval\n"); 252 auto_mode = true; 253 } 254 255 switch (c->hierarchy) { 256 case HIERARCHY_AUTO: 257 auto_mode = true; 258 break; 259 case HIERARCHY_NONE: 260 break; 261 case HIERARCHY_1: 262 buf[0] |= (1 << 4); 263 break; 264 case HIERARCHY_2: 265 buf[0] |= (2 << 4); 266 break; 267 case HIERARCHY_4: 268 buf[0] |= (3 << 4); 269 break; 270 default: 271 dev_dbg(&client->dev, "invalid hierarchy\n"); 272 auto_mode = true; 273 } 274 275 switch (c->modulation) { 276 case QAM_AUTO: 277 auto_mode = true; 278 break; 279 case QPSK: 280 break; 281 case QAM_16: 282 buf[1] |= (1 << 6); 283 break; 284 case QAM_64: 285 buf[1] |= (2 << 6); 286 break; 287 default: 288 dev_dbg(&client->dev, "invalid modulation\n"); 289 auto_mode = true; 290 } 291 292 /* Use HP. How and which case we can switch to LP? */ 293 buf[1] |= (1 << 4); 294 295 switch (c->code_rate_HP) { 296 case FEC_AUTO: 297 auto_mode = true; 298 break; 299 case FEC_1_2: 300 break; 301 case FEC_2_3: 302 buf[2] |= (1 << 0); 303 break; 304 case FEC_3_4: 305 buf[2] |= (2 << 0); 306 break; 307 case FEC_5_6: 308 buf[2] |= (3 << 0); 309 break; 310 case FEC_7_8: 311 buf[2] |= (4 << 0); 312 break; 313 default: 314 dev_dbg(&client->dev, "invalid code_rate_HP\n"); 315 auto_mode = true; 316 } 317 318 switch (c->code_rate_LP) { 319 case FEC_AUTO: 320 auto_mode = true; 321 break; 322 case FEC_1_2: 323 break; 324 case FEC_2_3: 325 buf[2] |= (1 << 3); 326 break; 327 case FEC_3_4: 328 buf[2] |= (2 << 3); 329 break; 330 case FEC_5_6: 331 buf[2] |= (3 << 3); 332 break; 333 case FEC_7_8: 334 buf[2] |= (4 << 3); 335 break; 336 case FEC_NONE: 337 break; 338 default: 339 dev_dbg(&client->dev, "invalid code_rate_LP\n"); 340 auto_mode = true; 341 } 342 343 switch (c->bandwidth_hz) { 344 case 6000000: 345 break; 346 case 7000000: 347 buf[1] |= (1 << 2); 348 break; 349 case 8000000: 350 buf[1] |= (2 << 2); 351 break; 352 default: 353 dev_dbg(&client->dev, "invalid bandwidth_hz\n"); 354 ret = -EINVAL; 355 goto err; 356 } 357 358 ret = regmap_bulk_write(state->regmap, 0xd3c0, buf, 3); 359 if (ret) 360 goto err; 361 362 if (auto_mode) { 363 /* clear easy mode flag */ 364 ret = regmap_write(state->regmap, 0xaefd, 0x00); 365 if (ret) 366 goto err; 367 368 dev_dbg(&client->dev, "auto params\n"); 369 } else { 370 /* set easy mode flag */ 371 ret = regmap_write(state->regmap, 0xaefd, 0x01); 372 if (ret) 373 goto err; 374 375 ret = regmap_write(state->regmap, 0xaefe, 0x00); 376 if (ret) 377 goto err; 378 379 dev_dbg(&client->dev, "manual params\n"); 380 } 381 382 /* Reset FSM */ 383 ret = regmap_write(state->regmap, 0xffff, 0x00); 384 if (ret) 385 goto err; 386 387 state->bandwidth_hz = c->bandwidth_hz; 388 state->set_frontend_jiffies = jiffies; 389 state->first_tune = false; 390 391 return 0; 392 err: 393 dev_dbg(&client->dev, "failed %d\n", ret); 394 return ret; 395 } 396 af9013_get_frontend(struct dvb_frontend * fe,struct dtv_frontend_properties * c)397 static int af9013_get_frontend(struct dvb_frontend *fe, 398 struct dtv_frontend_properties *c) 399 { 400 struct af9013_state *state = fe->demodulator_priv; 401 struct i2c_client *client = state->client; 402 int ret; 403 u8 buf[3]; 404 405 dev_dbg(&client->dev, "\n"); 406 407 ret = regmap_bulk_read(state->regmap, 0xd3c0, buf, 3); 408 if (ret) 409 goto err; 410 411 switch ((buf[1] >> 6) & 3) { 412 case 0: 413 c->modulation = QPSK; 414 break; 415 case 1: 416 c->modulation = QAM_16; 417 break; 418 case 2: 419 c->modulation = QAM_64; 420 break; 421 } 422 423 switch ((buf[0] >> 0) & 3) { 424 case 0: 425 c->transmission_mode = TRANSMISSION_MODE_2K; 426 break; 427 case 1: 428 c->transmission_mode = TRANSMISSION_MODE_8K; 429 } 430 431 switch ((buf[0] >> 2) & 3) { 432 case 0: 433 c->guard_interval = GUARD_INTERVAL_1_32; 434 break; 435 case 1: 436 c->guard_interval = GUARD_INTERVAL_1_16; 437 break; 438 case 2: 439 c->guard_interval = GUARD_INTERVAL_1_8; 440 break; 441 case 3: 442 c->guard_interval = GUARD_INTERVAL_1_4; 443 break; 444 } 445 446 switch ((buf[0] >> 4) & 7) { 447 case 0: 448 c->hierarchy = HIERARCHY_NONE; 449 break; 450 case 1: 451 c->hierarchy = HIERARCHY_1; 452 break; 453 case 2: 454 c->hierarchy = HIERARCHY_2; 455 break; 456 case 3: 457 c->hierarchy = HIERARCHY_4; 458 break; 459 } 460 461 switch ((buf[2] >> 0) & 7) { 462 case 0: 463 c->code_rate_HP = FEC_1_2; 464 break; 465 case 1: 466 c->code_rate_HP = FEC_2_3; 467 break; 468 case 2: 469 c->code_rate_HP = FEC_3_4; 470 break; 471 case 3: 472 c->code_rate_HP = FEC_5_6; 473 break; 474 case 4: 475 c->code_rate_HP = FEC_7_8; 476 break; 477 } 478 479 switch ((buf[2] >> 3) & 7) { 480 case 0: 481 c->code_rate_LP = FEC_1_2; 482 break; 483 case 1: 484 c->code_rate_LP = FEC_2_3; 485 break; 486 case 2: 487 c->code_rate_LP = FEC_3_4; 488 break; 489 case 3: 490 c->code_rate_LP = FEC_5_6; 491 break; 492 case 4: 493 c->code_rate_LP = FEC_7_8; 494 break; 495 } 496 497 switch ((buf[1] >> 2) & 3) { 498 case 0: 499 c->bandwidth_hz = 6000000; 500 break; 501 case 1: 502 c->bandwidth_hz = 7000000; 503 break; 504 case 2: 505 c->bandwidth_hz = 8000000; 506 break; 507 } 508 509 return 0; 510 err: 511 dev_dbg(&client->dev, "failed %d\n", ret); 512 return ret; 513 } 514 af9013_read_status(struct dvb_frontend * fe,enum fe_status * status)515 static int af9013_read_status(struct dvb_frontend *fe, enum fe_status *status) 516 { 517 struct af9013_state *state = fe->demodulator_priv; 518 struct i2c_client *client = state->client; 519 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 520 int ret, stmp1; 521 unsigned int utmp, utmp1, utmp2, utmp3, utmp4; 522 u8 buf[7]; 523 524 dev_dbg(&client->dev, "\n"); 525 526 /* 527 * Return status from the cache if it is younger than 2000ms with the 528 * exception of last tune is done during 4000ms. 529 */ 530 if (time_is_after_jiffies(state->read_status_jiffies + msecs_to_jiffies(2000)) && 531 time_is_before_jiffies(state->set_frontend_jiffies + msecs_to_jiffies(4000))) { 532 *status = state->fe_status; 533 } else { 534 /* MPEG2 lock */ 535 ret = regmap_read(state->regmap, 0xd507, &utmp); 536 if (ret) 537 goto err; 538 539 if ((utmp >> 6) & 0x01) { 540 utmp1 = FE_HAS_SIGNAL | FE_HAS_CARRIER | 541 FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; 542 } else { 543 /* TPS lock */ 544 ret = regmap_read(state->regmap, 0xd330, &utmp); 545 if (ret) 546 goto err; 547 548 if ((utmp >> 3) & 0x01) 549 utmp1 = FE_HAS_SIGNAL | FE_HAS_CARRIER | 550 FE_HAS_VITERBI; 551 else 552 utmp1 = 0; 553 } 554 555 dev_dbg(&client->dev, "fe_status %02x\n", utmp1); 556 557 state->read_status_jiffies = jiffies; 558 559 state->fe_status = utmp1; 560 *status = utmp1; 561 } 562 563 /* Signal strength */ 564 switch (state->strength_en) { 565 case 0: 566 /* Check if we support signal strength */ 567 ret = regmap_read(state->regmap, 0x9bee, &utmp); 568 if (ret) 569 goto err; 570 571 if ((utmp >> 0) & 0x01) { 572 /* Read agc values for signal strength estimation */ 573 ret = regmap_read(state->regmap, 0x9bbd, &utmp1); 574 if (ret) 575 goto err; 576 ret = regmap_read(state->regmap, 0x9bd0, &utmp2); 577 if (ret) 578 goto err; 579 ret = regmap_read(state->regmap, 0x9be2, &utmp3); 580 if (ret) 581 goto err; 582 ret = regmap_read(state->regmap, 0x9be4, &utmp4); 583 if (ret) 584 goto err; 585 586 state->rf_agc_50 = utmp1; 587 state->rf_agc_80 = utmp2; 588 state->if_agc_50 = utmp3; 589 state->if_agc_80 = utmp4; 590 dev_dbg(&client->dev, 591 "rf_agc_50 %u, rf_agc_80 %u, if_agc_50 %u, if_agc_80 %u\n", 592 utmp1, utmp2, utmp3, utmp4); 593 594 state->strength_en = 1; 595 } else { 596 /* Signal strength is not supported */ 597 state->strength_en = 2; 598 break; 599 } 600 fallthrough; 601 case 1: 602 if (time_is_after_jiffies(state->strength_jiffies + msecs_to_jiffies(2000))) 603 break; 604 605 /* Read value */ 606 ret = regmap_bulk_read(state->regmap, 0xd07c, buf, 2); 607 if (ret) 608 goto err; 609 610 /* 611 * Construct line equation from tuner dependent -80/-50 dBm agc 612 * limits and use it to map current agc value to dBm estimate 613 */ 614 #define agc_gain (buf[0] + buf[1]) 615 #define agc_gain_50dbm (state->rf_agc_50 + state->if_agc_50) 616 #define agc_gain_80dbm (state->rf_agc_80 + state->if_agc_80) 617 stmp1 = 30000 * (agc_gain - agc_gain_80dbm) / 618 (agc_gain_50dbm - agc_gain_80dbm) - 80000; 619 620 dev_dbg(&client->dev, 621 "strength %d, agc_gain %d, agc_gain_50dbm %d, agc_gain_80dbm %d\n", 622 stmp1, agc_gain, agc_gain_50dbm, agc_gain_80dbm); 623 624 state->strength_jiffies = jiffies; 625 /* Convert [-90, -30] dBm to [0x0000, 0xffff] for dvbv3 */ 626 utmp1 = clamp(stmp1 + 90000, 0, 60000); 627 state->dvbv3_strength = div_u64((u64)utmp1 * 0xffff, 60000); 628 629 c->strength.stat[0].scale = FE_SCALE_DECIBEL; 630 c->strength.stat[0].svalue = stmp1; 631 break; 632 default: 633 c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 634 break; 635 } 636 637 /* CNR */ 638 switch (state->fe_status & FE_HAS_VITERBI) { 639 case FE_HAS_VITERBI: 640 if (time_is_after_jiffies(state->cnr_jiffies + msecs_to_jiffies(2000))) 641 break; 642 643 /* Check if cnr ready */ 644 ret = regmap_read(state->regmap, 0xd2e1, &utmp); 645 if (ret) 646 goto err; 647 648 if (!((utmp >> 3) & 0x01)) { 649 dev_dbg(&client->dev, "cnr not ready\n"); 650 break; 651 } 652 653 /* Read value */ 654 ret = regmap_bulk_read(state->regmap, 0xd2e3, buf, 3); 655 if (ret) 656 goto err; 657 658 utmp1 = buf[2] << 16 | buf[1] << 8 | buf[0] << 0; 659 660 /* Read current modulation */ 661 ret = regmap_read(state->regmap, 0xd3c1, &utmp); 662 if (ret) 663 goto err; 664 665 switch ((utmp >> 6) & 3) { 666 case 0: 667 /* 668 * QPSK 669 * CNR[dB] 13 * -log10((1690000 - value) / value) + 2.6 670 * value [653799, 1689999], 2.6 / 13 = 3355443 671 */ 672 utmp1 = clamp(utmp1, 653799U, 1689999U); 673 utmp1 = ((u64)(intlog10(utmp1) 674 - intlog10(1690000 - utmp1) 675 + 3355443) * 13 * 1000) >> 24; 676 break; 677 case 1: 678 /* 679 * QAM-16 680 * CNR[dB] 6 * log10((value - 370000) / (828000 - value)) + 15.7 681 * value [371105, 827999], 15.7 / 6 = 43900382 682 */ 683 utmp1 = clamp(utmp1, 371105U, 827999U); 684 utmp1 = ((u64)(intlog10(utmp1 - 370000) 685 - intlog10(828000 - utmp1) 686 + 43900382) * 6 * 1000) >> 24; 687 break; 688 case 2: 689 /* 690 * QAM-64 691 * CNR[dB] 8 * log10((value - 193000) / (425000 - value)) + 23.8 692 * value [193246, 424999], 23.8 / 8 = 49912218 693 */ 694 utmp1 = clamp(utmp1, 193246U, 424999U); 695 utmp1 = ((u64)(intlog10(utmp1 - 193000) 696 - intlog10(425000 - utmp1) 697 + 49912218) * 8 * 1000) >> 24; 698 break; 699 default: 700 dev_dbg(&client->dev, "invalid modulation %u\n", 701 (utmp >> 6) & 3); 702 utmp1 = 0; 703 break; 704 } 705 706 dev_dbg(&client->dev, "cnr %u\n", utmp1); 707 708 state->cnr_jiffies = jiffies; 709 state->dvbv3_snr = utmp1 / 100; 710 711 c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 712 c->cnr.stat[0].svalue = utmp1; 713 break; 714 default: 715 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 716 break; 717 } 718 719 /* BER / PER */ 720 switch (state->fe_status & FE_HAS_SYNC) { 721 case FE_HAS_SYNC: 722 if (time_is_after_jiffies(state->ber_ucb_jiffies + msecs_to_jiffies(2000))) 723 break; 724 725 /* Check if ber / ucb is ready */ 726 ret = regmap_read(state->regmap, 0xd391, &utmp); 727 if (ret) 728 goto err; 729 730 if (!((utmp >> 4) & 0x01)) { 731 dev_dbg(&client->dev, "ber not ready\n"); 732 break; 733 } 734 735 /* Read value */ 736 ret = regmap_bulk_read(state->regmap, 0xd385, buf, 7); 737 if (ret) 738 goto err; 739 740 utmp1 = buf[4] << 16 | buf[3] << 8 | buf[2] << 0; 741 utmp2 = (buf[1] << 8 | buf[0] << 0) * 204 * 8; 742 utmp3 = buf[6] << 8 | buf[5] << 0; 743 utmp4 = buf[1] << 8 | buf[0] << 0; 744 745 /* Use 10000 TS packets for measure */ 746 if (utmp4 != 10000) { 747 buf[0] = (10000 >> 0) & 0xff; 748 buf[1] = (10000 >> 8) & 0xff; 749 ret = regmap_bulk_write(state->regmap, 0xd385, buf, 2); 750 if (ret) 751 goto err; 752 } 753 754 /* Reset ber / ucb counter */ 755 ret = regmap_update_bits(state->regmap, 0xd391, 0x20, 0x20); 756 if (ret) 757 goto err; 758 759 dev_dbg(&client->dev, "post_bit_error %u, post_bit_count %u\n", 760 utmp1, utmp2); 761 dev_dbg(&client->dev, "block_error %u, block_count %u\n", 762 utmp3, utmp4); 763 764 state->ber_ucb_jiffies = jiffies; 765 state->dvbv3_ber = utmp1; 766 state->dvbv3_ucblocks += utmp3; 767 768 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; 769 c->post_bit_error.stat[0].uvalue += utmp1; 770 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; 771 c->post_bit_count.stat[0].uvalue += utmp2; 772 773 c->block_error.stat[0].scale = FE_SCALE_COUNTER; 774 c->block_error.stat[0].uvalue += utmp3; 775 c->block_count.stat[0].scale = FE_SCALE_COUNTER; 776 c->block_count.stat[0].uvalue += utmp4; 777 break; 778 default: 779 c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 780 c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 781 782 c->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 783 c->block_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; 784 break; 785 } 786 787 return 0; 788 err: 789 dev_dbg(&client->dev, "failed %d\n", ret); 790 return ret; 791 } 792 af9013_read_snr(struct dvb_frontend * fe,u16 * snr)793 static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr) 794 { 795 struct af9013_state *state = fe->demodulator_priv; 796 797 *snr = state->dvbv3_snr; 798 799 return 0; 800 } 801 af9013_read_signal_strength(struct dvb_frontend * fe,u16 * strength)802 static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength) 803 { 804 struct af9013_state *state = fe->demodulator_priv; 805 806 *strength = state->dvbv3_strength; 807 808 return 0; 809 } 810 af9013_read_ber(struct dvb_frontend * fe,u32 * ber)811 static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber) 812 { 813 struct af9013_state *state = fe->demodulator_priv; 814 815 *ber = state->dvbv3_ber; 816 817 return 0; 818 } 819 af9013_read_ucblocks(struct dvb_frontend * fe,u32 * ucblocks)820 static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) 821 { 822 struct af9013_state *state = fe->demodulator_priv; 823 824 *ucblocks = state->dvbv3_ucblocks; 825 826 return 0; 827 } 828 af9013_init(struct dvb_frontend * fe)829 static int af9013_init(struct dvb_frontend *fe) 830 { 831 struct af9013_state *state = fe->demodulator_priv; 832 struct i2c_client *client = state->client; 833 int ret, i, len; 834 unsigned int utmp; 835 u8 buf[3]; 836 const struct af9013_reg_mask_val *tab; 837 838 dev_dbg(&client->dev, "\n"); 839 840 /* ADC on */ 841 ret = regmap_update_bits(state->regmap, 0xd73a, 0x08, 0x00); 842 if (ret) 843 goto err; 844 845 /* Clear reset */ 846 ret = regmap_update_bits(state->regmap, 0xd417, 0x02, 0x00); 847 if (ret) 848 goto err; 849 850 /* Disable reset */ 851 ret = regmap_update_bits(state->regmap, 0xd417, 0x10, 0x00); 852 if (ret) 853 goto err; 854 855 /* write API version to firmware */ 856 ret = regmap_bulk_write(state->regmap, 0x9bf2, state->api_version, 4); 857 if (ret) 858 goto err; 859 860 /* program ADC control */ 861 switch (state->clk) { 862 case 28800000: /* 28.800 MHz */ 863 utmp = 0; 864 break; 865 case 20480000: /* 20.480 MHz */ 866 utmp = 1; 867 break; 868 case 28000000: /* 28.000 MHz */ 869 utmp = 2; 870 break; 871 case 25000000: /* 25.000 MHz */ 872 utmp = 3; 873 break; 874 default: 875 ret = -EINVAL; 876 goto err; 877 } 878 879 ret = regmap_update_bits(state->regmap, 0x9bd2, 0x0f, utmp); 880 if (ret) 881 goto err; 882 883 utmp = div_u64((u64)state->clk * 0x80000, 1000000); 884 buf[0] = (utmp >> 0) & 0xff; 885 buf[1] = (utmp >> 8) & 0xff; 886 buf[2] = (utmp >> 16) & 0xff; 887 ret = regmap_bulk_write(state->regmap, 0xd180, buf, 3); 888 if (ret) 889 goto err; 890 891 /* Demod core settings */ 892 dev_dbg(&client->dev, "load demod core settings\n"); 893 len = ARRAY_SIZE(demod_init_tab); 894 tab = demod_init_tab; 895 for (i = 0; i < len; i++) { 896 ret = regmap_update_bits(state->regmap, tab[i].reg, tab[i].mask, 897 tab[i].val); 898 if (ret) 899 goto err; 900 } 901 902 /* Demod tuner specific settings */ 903 dev_dbg(&client->dev, "load tuner specific settings\n"); 904 switch (state->tuner) { 905 case AF9013_TUNER_MXL5003D: 906 len = ARRAY_SIZE(tuner_init_tab_mxl5003d); 907 tab = tuner_init_tab_mxl5003d; 908 break; 909 case AF9013_TUNER_MXL5005D: 910 case AF9013_TUNER_MXL5005R: 911 case AF9013_TUNER_MXL5007T: 912 len = ARRAY_SIZE(tuner_init_tab_mxl5005); 913 tab = tuner_init_tab_mxl5005; 914 break; 915 case AF9013_TUNER_ENV77H11D5: 916 len = ARRAY_SIZE(tuner_init_tab_env77h11d5); 917 tab = tuner_init_tab_env77h11d5; 918 break; 919 case AF9013_TUNER_MT2060: 920 len = ARRAY_SIZE(tuner_init_tab_mt2060); 921 tab = tuner_init_tab_mt2060; 922 break; 923 case AF9013_TUNER_MC44S803: 924 len = ARRAY_SIZE(tuner_init_tab_mc44s803); 925 tab = tuner_init_tab_mc44s803; 926 break; 927 case AF9013_TUNER_QT1010: 928 case AF9013_TUNER_QT1010A: 929 len = ARRAY_SIZE(tuner_init_tab_qt1010); 930 tab = tuner_init_tab_qt1010; 931 break; 932 case AF9013_TUNER_MT2060_2: 933 len = ARRAY_SIZE(tuner_init_tab_mt2060_2); 934 tab = tuner_init_tab_mt2060_2; 935 break; 936 case AF9013_TUNER_TDA18271: 937 case AF9013_TUNER_TDA18218: 938 len = ARRAY_SIZE(tuner_init_tab_tda18271); 939 tab = tuner_init_tab_tda18271; 940 break; 941 case AF9013_TUNER_UNKNOWN: 942 default: 943 len = ARRAY_SIZE(tuner_init_tab_unknown); 944 tab = tuner_init_tab_unknown; 945 break; 946 } 947 948 for (i = 0; i < len; i++) { 949 ret = regmap_update_bits(state->regmap, tab[i].reg, tab[i].mask, 950 tab[i].val); 951 if (ret) 952 goto err; 953 } 954 955 /* TS interface */ 956 if (state->ts_output_pin == 7) 957 utmp = 1 << 3 | state->ts_mode << 1; 958 else 959 utmp = 0 << 3 | state->ts_mode << 1; 960 ret = regmap_update_bits(state->regmap, 0xd500, 0x0e, utmp); 961 if (ret) 962 goto err; 963 964 /* enable lock led */ 965 ret = regmap_update_bits(state->regmap, 0xd730, 0x01, 0x01); 966 if (ret) 967 goto err; 968 969 state->first_tune = true; 970 971 return 0; 972 err: 973 dev_dbg(&client->dev, "failed %d\n", ret); 974 return ret; 975 } 976 af9013_sleep(struct dvb_frontend * fe)977 static int af9013_sleep(struct dvb_frontend *fe) 978 { 979 struct af9013_state *state = fe->demodulator_priv; 980 struct i2c_client *client = state->client; 981 int ret; 982 unsigned int utmp; 983 984 dev_dbg(&client->dev, "\n"); 985 986 /* disable lock led */ 987 ret = regmap_update_bits(state->regmap, 0xd730, 0x01, 0x00); 988 if (ret) 989 goto err; 990 991 /* Enable reset */ 992 ret = regmap_update_bits(state->regmap, 0xd417, 0x10, 0x10); 993 if (ret) 994 goto err; 995 996 /* Start reset execution */ 997 ret = regmap_write(state->regmap, 0xaeff, 0x01); 998 if (ret) 999 goto err; 1000 1001 /* Wait reset performs */ 1002 ret = regmap_read_poll_timeout(state->regmap, 0xd417, utmp, 1003 (utmp >> 1) & 0x01, 5000, 1000000); 1004 if (ret) 1005 goto err; 1006 1007 if (!((utmp >> 1) & 0x01)) { 1008 ret = -ETIMEDOUT; 1009 goto err; 1010 } 1011 1012 /* ADC off */ 1013 ret = regmap_update_bits(state->regmap, 0xd73a, 0x08, 0x08); 1014 if (ret) 1015 goto err; 1016 1017 return 0; 1018 err: 1019 dev_dbg(&client->dev, "failed %d\n", ret); 1020 return ret; 1021 } 1022 1023 static const struct dvb_frontend_ops af9013_ops; 1024 af9013_download_firmware(struct af9013_state * state)1025 static int af9013_download_firmware(struct af9013_state *state) 1026 { 1027 struct i2c_client *client = state->client; 1028 int ret, i, len, rem; 1029 unsigned int utmp; 1030 u8 buf[4]; 1031 u16 checksum = 0; 1032 const struct firmware *firmware; 1033 const char *name = AF9013_FIRMWARE; 1034 1035 dev_dbg(&client->dev, "\n"); 1036 1037 /* Check whether firmware is already running */ 1038 ret = regmap_read(state->regmap, 0x98be, &utmp); 1039 if (ret) 1040 goto err; 1041 1042 dev_dbg(&client->dev, "firmware status %02x\n", utmp); 1043 1044 if (utmp == 0x0c) 1045 return 0; 1046 1047 dev_info(&client->dev, "found a '%s' in cold state, will try to load a firmware\n", 1048 af9013_ops.info.name); 1049 1050 /* Request the firmware, will block and timeout */ 1051 ret = request_firmware(&firmware, name, &client->dev); 1052 if (ret) { 1053 dev_info(&client->dev, "firmware file '%s' not found %d\n", 1054 name, ret); 1055 goto err; 1056 } 1057 1058 dev_info(&client->dev, "downloading firmware from file '%s'\n", 1059 name); 1060 1061 /* Write firmware checksum & size */ 1062 for (i = 0; i < firmware->size; i++) 1063 checksum += firmware->data[i]; 1064 1065 buf[0] = (checksum >> 8) & 0xff; 1066 buf[1] = (checksum >> 0) & 0xff; 1067 buf[2] = (firmware->size >> 8) & 0xff; 1068 buf[3] = (firmware->size >> 0) & 0xff; 1069 ret = regmap_bulk_write(state->regmap, 0x50fc, buf, 4); 1070 if (ret) 1071 goto err_release_firmware; 1072 1073 /* Download firmware */ 1074 #define LEN_MAX 16 1075 for (rem = firmware->size; rem > 0; rem -= LEN_MAX) { 1076 len = min(LEN_MAX, rem); 1077 ret = regmap_bulk_write(state->regmap, 1078 0x5100 + firmware->size - rem, 1079 &firmware->data[firmware->size - rem], 1080 len); 1081 if (ret) { 1082 dev_err(&client->dev, "firmware download failed %d\n", 1083 ret); 1084 goto err_release_firmware; 1085 } 1086 } 1087 1088 release_firmware(firmware); 1089 1090 /* Boot firmware */ 1091 ret = regmap_write(state->regmap, 0xe205, 0x01); 1092 if (ret) 1093 goto err; 1094 1095 /* Check firmware status. 0c=OK, 04=fail */ 1096 ret = regmap_read_poll_timeout(state->regmap, 0x98be, utmp, 1097 (utmp == 0x0c || utmp == 0x04), 1098 5000, 1000000); 1099 if (ret) 1100 goto err; 1101 1102 dev_dbg(&client->dev, "firmware status %02x\n", utmp); 1103 1104 if (utmp == 0x04) { 1105 ret = -ENODEV; 1106 dev_err(&client->dev, "firmware did not run\n"); 1107 goto err; 1108 } else if (utmp != 0x0c) { 1109 ret = -ENODEV; 1110 dev_err(&client->dev, "firmware boot timeout\n"); 1111 goto err; 1112 } 1113 1114 dev_info(&client->dev, "found a '%s' in warm state\n", 1115 af9013_ops.info.name); 1116 1117 return 0; 1118 err_release_firmware: 1119 release_firmware(firmware); 1120 err: 1121 dev_dbg(&client->dev, "failed %d\n", ret); 1122 return ret; 1123 } 1124 1125 static const struct dvb_frontend_ops af9013_ops = { 1126 .delsys = { SYS_DVBT }, 1127 .info = { 1128 .name = "Afatech AF9013", 1129 .frequency_min_hz = 174 * MHz, 1130 .frequency_max_hz = 862 * MHz, 1131 .frequency_stepsize_hz = 250 * kHz, 1132 .caps = FE_CAN_FEC_1_2 | 1133 FE_CAN_FEC_2_3 | 1134 FE_CAN_FEC_3_4 | 1135 FE_CAN_FEC_5_6 | 1136 FE_CAN_FEC_7_8 | 1137 FE_CAN_FEC_AUTO | 1138 FE_CAN_QPSK | 1139 FE_CAN_QAM_16 | 1140 FE_CAN_QAM_64 | 1141 FE_CAN_QAM_AUTO | 1142 FE_CAN_TRANSMISSION_MODE_AUTO | 1143 FE_CAN_GUARD_INTERVAL_AUTO | 1144 FE_CAN_HIERARCHY_AUTO | 1145 FE_CAN_RECOVER | 1146 FE_CAN_MUTE_TS 1147 }, 1148 1149 .init = af9013_init, 1150 .sleep = af9013_sleep, 1151 1152 .get_tune_settings = af9013_get_tune_settings, 1153 .set_frontend = af9013_set_frontend, 1154 .get_frontend = af9013_get_frontend, 1155 1156 .read_status = af9013_read_status, 1157 .read_snr = af9013_read_snr, 1158 .read_signal_strength = af9013_read_signal_strength, 1159 .read_ber = af9013_read_ber, 1160 .read_ucblocks = af9013_read_ucblocks, 1161 }; 1162 af9013_pid_filter_ctrl(struct dvb_frontend * fe,int onoff)1163 static int af9013_pid_filter_ctrl(struct dvb_frontend *fe, int onoff) 1164 { 1165 struct af9013_state *state = fe->demodulator_priv; 1166 struct i2c_client *client = state->client; 1167 int ret; 1168 1169 dev_dbg(&client->dev, "onoff %d\n", onoff); 1170 1171 ret = regmap_update_bits(state->regmap, 0xd503, 0x01, onoff); 1172 if (ret) 1173 goto err; 1174 1175 return 0; 1176 err: 1177 dev_dbg(&client->dev, "failed %d\n", ret); 1178 return ret; 1179 } 1180 af9013_pid_filter(struct dvb_frontend * fe,u8 index,u16 pid,int onoff)1181 static int af9013_pid_filter(struct dvb_frontend *fe, u8 index, u16 pid, 1182 int onoff) 1183 { 1184 struct af9013_state *state = fe->demodulator_priv; 1185 struct i2c_client *client = state->client; 1186 int ret; 1187 u8 buf[2]; 1188 1189 dev_dbg(&client->dev, "index %d, pid %04x, onoff %d\n", 1190 index, pid, onoff); 1191 1192 if (pid > 0x1fff) { 1193 /* 0x2000 is kernel virtual pid for whole ts (all pids) */ 1194 ret = 0; 1195 goto err; 1196 } 1197 1198 buf[0] = (pid >> 0) & 0xff; 1199 buf[1] = (pid >> 8) & 0xff; 1200 ret = regmap_bulk_write(state->regmap, 0xd505, buf, 2); 1201 if (ret) 1202 goto err; 1203 ret = regmap_write(state->regmap, 0xd504, onoff << 5 | index << 0); 1204 if (ret) 1205 goto err; 1206 1207 return 0; 1208 err: 1209 dev_dbg(&client->dev, "failed %d\n", ret); 1210 return ret; 1211 } 1212 af9013_get_dvb_frontend(struct i2c_client * client)1213 static struct dvb_frontend *af9013_get_dvb_frontend(struct i2c_client *client) 1214 { 1215 struct af9013_state *state = i2c_get_clientdata(client); 1216 1217 dev_dbg(&client->dev, "\n"); 1218 1219 return &state->fe; 1220 } 1221 af9013_get_i2c_adapter(struct i2c_client * client)1222 static struct i2c_adapter *af9013_get_i2c_adapter(struct i2c_client *client) 1223 { 1224 struct af9013_state *state = i2c_get_clientdata(client); 1225 1226 dev_dbg(&client->dev, "\n"); 1227 1228 return state->muxc->adapter[0]; 1229 } 1230 1231 /* 1232 * XXX: Hackish solution. We use virtual register, reg bit 16, to carry info 1233 * about i2c adapter locking. Own locking is needed because i2c mux call has 1234 * already locked i2c adapter. 1235 */ af9013_select(struct i2c_mux_core * muxc,u32 chan)1236 static int af9013_select(struct i2c_mux_core *muxc, u32 chan) 1237 { 1238 struct af9013_state *state = i2c_mux_priv(muxc); 1239 struct i2c_client *client = state->client; 1240 int ret; 1241 1242 dev_dbg(&client->dev, "\n"); 1243 1244 if (state->ts_mode == AF9013_TS_MODE_USB) 1245 ret = regmap_update_bits(state->regmap, 0x1d417, 0x08, 0x08); 1246 else 1247 ret = regmap_update_bits(state->regmap, 0x1d607, 0x04, 0x04); 1248 if (ret) 1249 goto err; 1250 1251 return 0; 1252 err: 1253 dev_dbg(&client->dev, "failed %d\n", ret); 1254 return ret; 1255 } 1256 af9013_deselect(struct i2c_mux_core * muxc,u32 chan)1257 static int af9013_deselect(struct i2c_mux_core *muxc, u32 chan) 1258 { 1259 struct af9013_state *state = i2c_mux_priv(muxc); 1260 struct i2c_client *client = state->client; 1261 int ret; 1262 1263 dev_dbg(&client->dev, "\n"); 1264 1265 if (state->ts_mode == AF9013_TS_MODE_USB) 1266 ret = regmap_update_bits(state->regmap, 0x1d417, 0x08, 0x00); 1267 else 1268 ret = regmap_update_bits(state->regmap, 0x1d607, 0x04, 0x00); 1269 if (ret) 1270 goto err; 1271 1272 return 0; 1273 err: 1274 dev_dbg(&client->dev, "failed %d\n", ret); 1275 return ret; 1276 } 1277 1278 /* Own I2C access routines needed for regmap as chip uses extra command byte */ af9013_wregs(struct i2c_client * client,u8 cmd,u16 reg,const u8 * val,int len,u8 lock)1279 static int af9013_wregs(struct i2c_client *client, u8 cmd, u16 reg, 1280 const u8 *val, int len, u8 lock) 1281 { 1282 int ret; 1283 u8 buf[21]; 1284 struct i2c_msg msg[1] = { 1285 { 1286 .addr = client->addr, 1287 .flags = 0, 1288 .len = 3 + len, 1289 .buf = buf, 1290 } 1291 }; 1292 1293 if (3 + len > sizeof(buf)) { 1294 ret = -EINVAL; 1295 goto err; 1296 } 1297 1298 buf[0] = (reg >> 8) & 0xff; 1299 buf[1] = (reg >> 0) & 0xff; 1300 buf[2] = cmd; 1301 memcpy(&buf[3], val, len); 1302 1303 if (lock) 1304 i2c_lock_bus(client->adapter, I2C_LOCK_SEGMENT); 1305 ret = __i2c_transfer(client->adapter, msg, 1); 1306 if (lock) 1307 i2c_unlock_bus(client->adapter, I2C_LOCK_SEGMENT); 1308 if (ret < 0) { 1309 goto err; 1310 } else if (ret != 1) { 1311 ret = -EREMOTEIO; 1312 goto err; 1313 } 1314 1315 return 0; 1316 err: 1317 dev_dbg(&client->dev, "failed %d\n", ret); 1318 return ret; 1319 } 1320 af9013_rregs(struct i2c_client * client,u8 cmd,u16 reg,u8 * val,int len,u8 lock)1321 static int af9013_rregs(struct i2c_client *client, u8 cmd, u16 reg, 1322 u8 *val, int len, u8 lock) 1323 { 1324 int ret; 1325 u8 buf[3]; 1326 struct i2c_msg msg[2] = { 1327 { 1328 .addr = client->addr, 1329 .flags = 0, 1330 .len = 3, 1331 .buf = buf, 1332 }, { 1333 .addr = client->addr, 1334 .flags = I2C_M_RD, 1335 .len = len, 1336 .buf = val, 1337 } 1338 }; 1339 1340 buf[0] = (reg >> 8) & 0xff; 1341 buf[1] = (reg >> 0) & 0xff; 1342 buf[2] = cmd; 1343 1344 if (lock) 1345 i2c_lock_bus(client->adapter, I2C_LOCK_SEGMENT); 1346 ret = __i2c_transfer(client->adapter, msg, 2); 1347 if (lock) 1348 i2c_unlock_bus(client->adapter, I2C_LOCK_SEGMENT); 1349 if (ret < 0) { 1350 goto err; 1351 } else if (ret != 2) { 1352 ret = -EREMOTEIO; 1353 goto err; 1354 } 1355 1356 return 0; 1357 err: 1358 dev_dbg(&client->dev, "failed %d\n", ret); 1359 return ret; 1360 } 1361 af9013_regmap_write(void * context,const void * data,size_t count)1362 static int af9013_regmap_write(void *context, const void *data, size_t count) 1363 { 1364 struct i2c_client *client = context; 1365 struct af9013_state *state = i2c_get_clientdata(client); 1366 int ret, i; 1367 u8 cmd; 1368 u8 lock = !((u8 *)data)[0]; 1369 u16 reg = ((u8 *)data)[1] << 8 | ((u8 *)data)[2] << 0; 1370 u8 *val = &((u8 *)data)[3]; 1371 const unsigned int len = count - 3; 1372 1373 if (state->ts_mode == AF9013_TS_MODE_USB && (reg & 0xff00) != 0xae00) { 1374 cmd = 0 << 7|0 << 6|(len - 1) << 2|1 << 1|1 << 0; 1375 ret = af9013_wregs(client, cmd, reg, val, len, lock); 1376 if (ret) 1377 goto err; 1378 } else if (reg >= 0x5100 && reg < 0x8fff) { 1379 /* Firmware download */ 1380 cmd = 1 << 7|1 << 6|(len - 1) << 2|1 << 1|1 << 0; 1381 ret = af9013_wregs(client, cmd, reg, val, len, lock); 1382 if (ret) 1383 goto err; 1384 } else { 1385 cmd = 0 << 7|0 << 6|(1 - 1) << 2|1 << 1|1 << 0; 1386 for (i = 0; i < len; i++) { 1387 ret = af9013_wregs(client, cmd, reg + i, val + i, 1, 1388 lock); 1389 if (ret) 1390 goto err; 1391 } 1392 } 1393 1394 return 0; 1395 err: 1396 dev_dbg(&client->dev, "failed %d\n", ret); 1397 return ret; 1398 } 1399 af9013_regmap_read(void * context,const void * reg_buf,size_t reg_size,void * val_buf,size_t val_size)1400 static int af9013_regmap_read(void *context, const void *reg_buf, 1401 size_t reg_size, void *val_buf, size_t val_size) 1402 { 1403 struct i2c_client *client = context; 1404 struct af9013_state *state = i2c_get_clientdata(client); 1405 int ret, i; 1406 u8 cmd; 1407 u8 lock = !((u8 *)reg_buf)[0]; 1408 u16 reg = ((u8 *)reg_buf)[1] << 8 | ((u8 *)reg_buf)[2] << 0; 1409 u8 *val = &((u8 *)val_buf)[0]; 1410 const unsigned int len = val_size; 1411 1412 if (state->ts_mode == AF9013_TS_MODE_USB && (reg & 0xff00) != 0xae00) { 1413 cmd = 0 << 7|0 << 6|(len - 1) << 2|1 << 1|0 << 0; 1414 ret = af9013_rregs(client, cmd, reg, val_buf, len, lock); 1415 if (ret) 1416 goto err; 1417 } else { 1418 cmd = 0 << 7|0 << 6|(1 - 1) << 2|1 << 1|0 << 0; 1419 for (i = 0; i < len; i++) { 1420 ret = af9013_rregs(client, cmd, reg + i, val + i, 1, 1421 lock); 1422 if (ret) 1423 goto err; 1424 } 1425 } 1426 1427 return 0; 1428 err: 1429 dev_dbg(&client->dev, "failed %d\n", ret); 1430 return ret; 1431 } 1432 af9013_probe(struct i2c_client * client)1433 static int af9013_probe(struct i2c_client *client) 1434 { 1435 struct af9013_state *state; 1436 struct af9013_platform_data *pdata = client->dev.platform_data; 1437 struct dtv_frontend_properties *c; 1438 int ret, i; 1439 u8 firmware_version[4]; 1440 static const struct regmap_bus regmap_bus = { 1441 .read = af9013_regmap_read, 1442 .write = af9013_regmap_write, 1443 }; 1444 static const struct regmap_config regmap_config = { 1445 /* Actual reg is 16 bits, see i2c adapter lock */ 1446 .reg_bits = 24, 1447 .val_bits = 8, 1448 }; 1449 1450 state = kzalloc(sizeof(*state), GFP_KERNEL); 1451 if (!state) { 1452 ret = -ENOMEM; 1453 goto err; 1454 } 1455 1456 dev_dbg(&client->dev, "\n"); 1457 1458 /* Setup the state */ 1459 state->client = client; 1460 i2c_set_clientdata(client, state); 1461 state->clk = pdata->clk; 1462 state->tuner = pdata->tuner; 1463 state->if_frequency = pdata->if_frequency; 1464 state->ts_mode = pdata->ts_mode; 1465 state->ts_output_pin = pdata->ts_output_pin; 1466 state->spec_inv = pdata->spec_inv; 1467 memcpy(&state->api_version, pdata->api_version, sizeof(state->api_version)); 1468 memcpy(&state->gpio, pdata->gpio, sizeof(state->gpio)); 1469 state->regmap = regmap_init(&client->dev, ®map_bus, client, 1470 ®map_config); 1471 if (IS_ERR(state->regmap)) { 1472 ret = PTR_ERR(state->regmap); 1473 goto err_kfree; 1474 } 1475 /* Create mux i2c adapter */ 1476 state->muxc = i2c_mux_alloc(client->adapter, &client->dev, 1, 0, 0, 1477 af9013_select, af9013_deselect); 1478 if (!state->muxc) { 1479 ret = -ENOMEM; 1480 goto err_regmap_exit; 1481 } 1482 state->muxc->priv = state; 1483 ret = i2c_mux_add_adapter(state->muxc, 0, 0, 0); 1484 if (ret) 1485 goto err_regmap_exit; 1486 1487 /* Download firmware */ 1488 if (state->ts_mode != AF9013_TS_MODE_USB) { 1489 ret = af9013_download_firmware(state); 1490 if (ret) 1491 goto err_i2c_mux_del_adapters; 1492 } 1493 1494 /* Firmware version */ 1495 ret = regmap_bulk_read(state->regmap, 0x5103, firmware_version, 1496 sizeof(firmware_version)); 1497 if (ret) 1498 goto err_i2c_mux_del_adapters; 1499 1500 /* Set GPIOs */ 1501 for (i = 0; i < sizeof(state->gpio); i++) { 1502 ret = af9013_set_gpio(state, i, state->gpio[i]); 1503 if (ret) 1504 goto err_i2c_mux_del_adapters; 1505 } 1506 1507 /* Create dvb frontend */ 1508 memcpy(&state->fe.ops, &af9013_ops, sizeof(state->fe.ops)); 1509 state->fe.demodulator_priv = state; 1510 1511 /* Setup callbacks */ 1512 pdata->get_dvb_frontend = af9013_get_dvb_frontend; 1513 pdata->get_i2c_adapter = af9013_get_i2c_adapter; 1514 pdata->pid_filter = af9013_pid_filter; 1515 pdata->pid_filter_ctrl = af9013_pid_filter_ctrl; 1516 1517 /* Init stats to indicate which stats are supported */ 1518 c = &state->fe.dtv_property_cache; 1519 c->strength.len = 1; 1520 c->cnr.len = 1; 1521 c->post_bit_error.len = 1; 1522 c->post_bit_count.len = 1; 1523 c->block_error.len = 1; 1524 c->block_count.len = 1; 1525 1526 dev_info(&client->dev, "Afatech AF9013 successfully attached\n"); 1527 dev_info(&client->dev, "firmware version: %d.%d.%d.%d\n", 1528 firmware_version[0], firmware_version[1], 1529 firmware_version[2], firmware_version[3]); 1530 return 0; 1531 err_i2c_mux_del_adapters: 1532 i2c_mux_del_adapters(state->muxc); 1533 err_regmap_exit: 1534 regmap_exit(state->regmap); 1535 err_kfree: 1536 kfree(state); 1537 err: 1538 dev_dbg(&client->dev, "failed %d\n", ret); 1539 return ret; 1540 } 1541 af9013_remove(struct i2c_client * client)1542 static void af9013_remove(struct i2c_client *client) 1543 { 1544 struct af9013_state *state = i2c_get_clientdata(client); 1545 1546 dev_dbg(&client->dev, "\n"); 1547 1548 i2c_mux_del_adapters(state->muxc); 1549 1550 regmap_exit(state->regmap); 1551 1552 kfree(state); 1553 } 1554 1555 static const struct i2c_device_id af9013_id_table[] = { 1556 {"af9013", 0}, 1557 {} 1558 }; 1559 MODULE_DEVICE_TABLE(i2c, af9013_id_table); 1560 1561 static struct i2c_driver af9013_driver = { 1562 .driver = { 1563 .name = "af9013", 1564 .suppress_bind_attrs = true, 1565 }, 1566 .probe = af9013_probe, 1567 .remove = af9013_remove, 1568 .id_table = af9013_id_table, 1569 }; 1570 1571 module_i2c_driver(af9013_driver); 1572 1573 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); 1574 MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver"); 1575 MODULE_LICENSE("GPL"); 1576 MODULE_FIRMWARE(AF9013_FIRMWARE); 1577