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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Afatech AF9013 demodulator driver4 *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 13struct 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 43static 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 0xd73554 * GPIO2 & GPIO3 0xd73655 */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;90err:91 dev_dbg(&client->dev, "failed %d\n", ret);92 return ret;93}94 95static 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 105static 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;392err:393 dev_dbg(&client->dev, "failed %d\n", ret);394 return ret;395}396 397static 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;510err:511 dev_dbg(&client->dev, "failed %d\n", ret);512 return ret;513}514 515static 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 the528 * 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 else552 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 agc612 * limits and use it to map current agc value to dBm estimate613 */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 * QPSK669 * CNR[dB] 13 * -log10((1690000 - value) / value) + 2.6670 * value [653799, 1689999], 2.6 / 13 = 3355443671 */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-16680 * CNR[dB] 6 * log10((value - 370000) / (828000 - value)) + 15.7681 * value [371105, 827999], 15.7 / 6 = 43900382682 */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-64691 * CNR[dB] 8 * log10((value - 193000) / (425000 - value)) + 23.8692 * value [193246, 424999], 23.8 / 8 = 49912218693 */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;788err:789 dev_dbg(&client->dev, "failed %d\n", ret);790 return ret;791}792 793static 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 802static 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 811static 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 820static 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 829static 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 else959 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;972err:973 dev_dbg(&client->dev, "failed %d\n", ret);974 return ret;975}976 977static 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;1018err:1019 dev_dbg(&client->dev, "failed %d\n", ret);1020 return ret;1021}1022 1023static const struct dvb_frontend_ops af9013_ops;1024 1025static 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 161075 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;1118err_release_firmware:1119 release_firmware(firmware);1120err:1121 dev_dbg(&client->dev, "failed %d\n", ret);1122 return ret;1123}1124 1125static 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_TS1147 },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 1163static 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;1176err:1177 dev_dbg(&client->dev, "failed %d\n", ret);1178 return ret;1179}1180 1181static 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;1208err:1209 dev_dbg(&client->dev, "failed %d\n", ret);1210 return ret;1211}1212 1213static 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 1222static 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 info1233 * about i2c adapter locking. Own locking is needed because i2c mux call has1234 * already locked i2c adapter.1235 */1236static 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 else1247 ret = regmap_update_bits(state->regmap, 0x1d607, 0x04, 0x04);1248 if (ret)1249 goto err;1250 1251 return 0;1252err:1253 dev_dbg(&client->dev, "failed %d\n", ret);1254 return ret;1255}1256 1257static 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 else1268 ret = regmap_update_bits(state->regmap, 0x1d607, 0x04, 0x00);1269 if (ret)1270 goto err;1271 1272 return 0;1273err: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 */1279static 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;1316err:1317 dev_dbg(&client->dev, "failed %d\n", ret);1318 return ret;1319}1320 1321static 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;1357err:1358 dev_dbg(&client->dev, "failed %d\n", ret);1359 return ret;1360}1361 1362static 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;1395err:1396 dev_dbg(&client->dev, "failed %d\n", ret);1397 return ret;1398}1399 1400static 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;1428err:1429 dev_dbg(&client->dev, "failed %d\n", ret);1430 return ret;1431}1432 1433static 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);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;1531err_i2c_mux_del_adapters:1532 i2c_mux_del_adapters(state->muxc);1533err_regmap_exit:1534 regmap_exit(state->regmap);1535err_kfree:1536 kfree(state);1537err:1538 dev_dbg(&client->dev, "failed %d\n", ret);1539 return ret;1540}1541 1542static 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 1555static const struct i2c_device_id af9013_id_table[] = {1556 { "af9013" },1557 {}1558};1559MODULE_DEVICE_TABLE(i2c, af9013_id_table);1560 1561static 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 1571module_i2c_driver(af9013_driver);1572 1573MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");1574MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver");1575MODULE_LICENSE("GPL");1576MODULE_FIRMWARE(AF9013_FIRMWARE);1577