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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 tda18271-fe.c - driver for the Philips / NXP TDA18271 silicon tuner4 5 Copyright (C) 2007, 2008 Michael Krufky <mkrufky@linuxtv.org>6 7*/8 9#include "tda18271-priv.h"10#include "tda8290.h"11 12#include <linux/delay.h>13#include <linux/videodev2.h>14 15int tda18271_debug;16module_param_named(debug, tda18271_debug, int, 0644);17MODULE_PARM_DESC(debug, "set debug level (info=1, map=2, reg=4, adv=8, cal=16 (or-able))");18 19static int tda18271_cal_on_startup = -1;20module_param_named(cal, tda18271_cal_on_startup, int, 0644);21MODULE_PARM_DESC(cal, "perform RF tracking filter calibration on startup");22 23static DEFINE_MUTEX(tda18271_list_mutex);24static LIST_HEAD(hybrid_tuner_instance_list);25 26/*---------------------------------------------------------------------*/27 28static int tda18271_toggle_output(struct dvb_frontend *fe, int standby)29{30 struct tda18271_priv *priv = fe->tuner_priv;31 32 int ret = tda18271_set_standby_mode(fe, standby ? 1 : 0,33 priv->output_opt & TDA18271_OUTPUT_LT_OFF ? 1 : 0,34 priv->output_opt & TDA18271_OUTPUT_XT_OFF ? 1 : 0);35 36 if (tda_fail(ret))37 goto fail;38 39 tda_dbg("%s mode: xtal oscillator %s, slave tuner loop through %s\n",40 standby ? "standby" : "active",41 priv->output_opt & TDA18271_OUTPUT_XT_OFF ? "off" : "on",42 priv->output_opt & TDA18271_OUTPUT_LT_OFF ? "off" : "on");43fail:44 return ret;45}46 47/*---------------------------------------------------------------------*/48 49static inline int charge_pump_source(struct dvb_frontend *fe, int force)50{51 struct tda18271_priv *priv = fe->tuner_priv;52 return tda18271_charge_pump_source(fe,53 (priv->role == TDA18271_SLAVE) ?54 TDA18271_CAL_PLL :55 TDA18271_MAIN_PLL, force);56}57 58static inline void tda18271_set_if_notch(struct dvb_frontend *fe)59{60 struct tda18271_priv *priv = fe->tuner_priv;61 unsigned char *regs = priv->tda18271_regs;62 63 switch (priv->mode) {64 case TDA18271_ANALOG:65 regs[R_MPD] &= ~0x80; /* IF notch = 0 */66 break;67 case TDA18271_DIGITAL:68 regs[R_MPD] |= 0x80; /* IF notch = 1 */69 break;70 }71}72 73static int tda18271_channel_configuration(struct dvb_frontend *fe,74 struct tda18271_std_map_item *map,75 u32 freq, u32 bw)76{77 struct tda18271_priv *priv = fe->tuner_priv;78 unsigned char *regs = priv->tda18271_regs;79 int ret;80 u32 N;81 82 /* update TV broadcast parameters */83 84 /* set standard */85 regs[R_EP3] &= ~0x1f; /* clear std bits */86 regs[R_EP3] |= (map->agc_mode << 3) | map->std;87 88 if (priv->id == TDA18271HDC2) {89 /* set rfagc to high speed mode */90 regs[R_EP3] &= ~0x04;91 }92 93 /* set cal mode to normal */94 regs[R_EP4] &= ~0x03;95 96 /* update IF output level */97 regs[R_EP4] &= ~0x1c; /* clear if level bits */98 regs[R_EP4] |= (map->if_lvl << 2);99 100 /* update FM_RFn */101 regs[R_EP4] &= ~0x80;102 regs[R_EP4] |= map->fm_rfn << 7;103 104 /* update rf top / if top */105 regs[R_EB22] = 0x00;106 regs[R_EB22] |= map->rfagc_top;107 ret = tda18271_write_regs(fe, R_EB22, 1);108 if (tda_fail(ret))109 goto fail;110 111 /* --------------------------------------------------------------- */112 113 /* disable Power Level Indicator */114 regs[R_EP1] |= 0x40;115 116 /* make sure thermometer is off */117 regs[R_TM] &= ~0x10;118 119 /* frequency dependent parameters */120 121 tda18271_calc_ir_measure(fe, &freq);122 123 tda18271_calc_bp_filter(fe, &freq);124 125 tda18271_calc_rf_band(fe, &freq);126 127 tda18271_calc_gain_taper(fe, &freq);128 129 /* --------------------------------------------------------------- */130 131 /* dual tuner and agc1 extra configuration */132 133 switch (priv->role) {134 case TDA18271_MASTER:135 regs[R_EB1] |= 0x04; /* main vco */136 break;137 case TDA18271_SLAVE:138 regs[R_EB1] &= ~0x04; /* cal vco */139 break;140 }141 142 /* agc1 always active */143 regs[R_EB1] &= ~0x02;144 145 /* agc1 has priority on agc2 */146 regs[R_EB1] &= ~0x01;147 148 ret = tda18271_write_regs(fe, R_EB1, 1);149 if (tda_fail(ret))150 goto fail;151 152 /* --------------------------------------------------------------- */153 154 N = map->if_freq * 1000 + freq;155 156 switch (priv->role) {157 case TDA18271_MASTER:158 tda18271_calc_main_pll(fe, N);159 tda18271_set_if_notch(fe);160 tda18271_write_regs(fe, R_MPD, 4);161 break;162 case TDA18271_SLAVE:163 tda18271_calc_cal_pll(fe, N);164 tda18271_write_regs(fe, R_CPD, 4);165 166 regs[R_MPD] = regs[R_CPD] & 0x7f;167 tda18271_set_if_notch(fe);168 tda18271_write_regs(fe, R_MPD, 1);169 break;170 }171 172 ret = tda18271_write_regs(fe, R_TM, 7);173 if (tda_fail(ret))174 goto fail;175 176 /* force charge pump source */177 charge_pump_source(fe, 1);178 179 msleep(1);180 181 /* return pll to normal operation */182 charge_pump_source(fe, 0);183 184 msleep(20);185 186 if (priv->id == TDA18271HDC2) {187 /* set rfagc to normal speed mode */188 if (map->fm_rfn)189 regs[R_EP3] &= ~0x04;190 else191 regs[R_EP3] |= 0x04;192 ret = tda18271_write_regs(fe, R_EP3, 1);193 }194fail:195 return ret;196}197 198static int tda18271_read_thermometer(struct dvb_frontend *fe)199{200 struct tda18271_priv *priv = fe->tuner_priv;201 unsigned char *regs = priv->tda18271_regs;202 int tm;203 204 /* switch thermometer on */205 regs[R_TM] |= 0x10;206 tda18271_write_regs(fe, R_TM, 1);207 208 /* read thermometer info */209 tda18271_read_regs(fe);210 211 if ((((regs[R_TM] & 0x0f) == 0x00) && ((regs[R_TM] & 0x20) == 0x20)) ||212 (((regs[R_TM] & 0x0f) == 0x08) && ((regs[R_TM] & 0x20) == 0x00))) {213 214 if ((regs[R_TM] & 0x20) == 0x20)215 regs[R_TM] &= ~0x20;216 else217 regs[R_TM] |= 0x20;218 219 tda18271_write_regs(fe, R_TM, 1);220 221 msleep(10); /* temperature sensing */222 223 /* read thermometer info */224 tda18271_read_regs(fe);225 }226 227 tm = tda18271_lookup_thermometer(fe);228 229 /* switch thermometer off */230 regs[R_TM] &= ~0x10;231 tda18271_write_regs(fe, R_TM, 1);232 233 /* set CAL mode to normal */234 regs[R_EP4] &= ~0x03;235 tda18271_write_regs(fe, R_EP4, 1);236 237 return tm;238}239 240/* ------------------------------------------------------------------ */241 242static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe,243 u32 freq)244{245 struct tda18271_priv *priv = fe->tuner_priv;246 struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state;247 unsigned char *regs = priv->tda18271_regs;248 int i, ret;249 u8 tm_current, dc_over_dt, rf_tab;250 s32 rfcal_comp, approx;251 252 /* power up */253 ret = tda18271_set_standby_mode(fe, 0, 0, 0);254 if (tda_fail(ret))255 goto fail;256 257 /* read die current temperature */258 tm_current = tda18271_read_thermometer(fe);259 260 /* frequency dependent parameters */261 262 tda18271_calc_rf_cal(fe, &freq);263 rf_tab = regs[R_EB14];264 265 i = tda18271_lookup_rf_band(fe, &freq, NULL);266 if (tda_fail(i))267 return i;268 269 if ((0 == map[i].rf3) || (freq / 1000 < map[i].rf2)) {270 approx = map[i].rf_a1 * (s32)(freq / 1000 - map[i].rf1) +271 map[i].rf_b1 + rf_tab;272 } else {273 approx = map[i].rf_a2 * (s32)(freq / 1000 - map[i].rf2) +274 map[i].rf_b2 + rf_tab;275 }276 277 if (approx < 0)278 approx = 0;279 if (approx > 255)280 approx = 255;281 282 tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt);283 284 /* calculate temperature compensation */285 rfcal_comp = dc_over_dt * (s32)(tm_current - priv->tm_rfcal) / 1000;286 287 regs[R_EB14] = (unsigned char)(approx + rfcal_comp);288 ret = tda18271_write_regs(fe, R_EB14, 1);289fail:290 return ret;291}292 293static int tda18271_por(struct dvb_frontend *fe)294{295 struct tda18271_priv *priv = fe->tuner_priv;296 unsigned char *regs = priv->tda18271_regs;297 int ret;298 299 /* power up detector 1 */300 regs[R_EB12] &= ~0x20;301 ret = tda18271_write_regs(fe, R_EB12, 1);302 if (tda_fail(ret))303 goto fail;304 305 regs[R_EB18] &= ~0x80; /* turn agc1 loop on */306 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */307 ret = tda18271_write_regs(fe, R_EB18, 1);308 if (tda_fail(ret))309 goto fail;310 311 regs[R_EB21] |= 0x03; /* set agc2_gain to -6 dB */312 313 /* POR mode */314 ret = tda18271_set_standby_mode(fe, 1, 0, 0);315 if (tda_fail(ret))316 goto fail;317 318 /* disable 1.5 MHz low pass filter */319 regs[R_EB23] &= ~0x04; /* forcelp_fc2_en = 0 */320 regs[R_EB23] &= ~0x02; /* XXX: lp_fc[2] = 0 */321 ret = tda18271_write_regs(fe, R_EB21, 3);322fail:323 return ret;324}325 326static int tda18271_calibrate_rf(struct dvb_frontend *fe, u32 freq)327{328 struct tda18271_priv *priv = fe->tuner_priv;329 unsigned char *regs = priv->tda18271_regs;330 u32 N;331 332 /* set CAL mode to normal */333 regs[R_EP4] &= ~0x03;334 tda18271_write_regs(fe, R_EP4, 1);335 336 /* switch off agc1 */337 regs[R_EP3] |= 0x40; /* sm_lt = 1 */338 339 regs[R_EB18] |= 0x03; /* set agc1_gain to 15 dB */340 tda18271_write_regs(fe, R_EB18, 1);341 342 /* frequency dependent parameters */343 344 tda18271_calc_bp_filter(fe, &freq);345 tda18271_calc_gain_taper(fe, &freq);346 tda18271_calc_rf_band(fe, &freq);347 tda18271_calc_km(fe, &freq);348 349 tda18271_write_regs(fe, R_EP1, 3);350 tda18271_write_regs(fe, R_EB13, 1);351 352 /* main pll charge pump source */353 tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 1);354 355 /* cal pll charge pump source */356 tda18271_charge_pump_source(fe, TDA18271_CAL_PLL, 1);357 358 /* force dcdc converter to 0 V */359 regs[R_EB14] = 0x00;360 tda18271_write_regs(fe, R_EB14, 1);361 362 /* disable plls lock */363 regs[R_EB20] &= ~0x20;364 tda18271_write_regs(fe, R_EB20, 1);365 366 /* set CAL mode to RF tracking filter calibration */367 regs[R_EP4] |= 0x03;368 tda18271_write_regs(fe, R_EP4, 2);369 370 /* --------------------------------------------------------------- */371 372 /* set the internal calibration signal */373 N = freq;374 375 tda18271_calc_cal_pll(fe, N);376 tda18271_write_regs(fe, R_CPD, 4);377 378 /* downconvert internal calibration */379 N += 1000000;380 381 tda18271_calc_main_pll(fe, N);382 tda18271_write_regs(fe, R_MPD, 4);383 384 msleep(5);385 386 tda18271_write_regs(fe, R_EP2, 1);387 tda18271_write_regs(fe, R_EP1, 1);388 tda18271_write_regs(fe, R_EP2, 1);389 tda18271_write_regs(fe, R_EP1, 1);390 391 /* --------------------------------------------------------------- */392 393 /* normal operation for the main pll */394 tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 0);395 396 /* normal operation for the cal pll */397 tda18271_charge_pump_source(fe, TDA18271_CAL_PLL, 0);398 399 msleep(10); /* plls locking */400 401 /* launch the rf tracking filters calibration */402 regs[R_EB20] |= 0x20;403 tda18271_write_regs(fe, R_EB20, 1);404 405 msleep(60); /* calibration */406 407 /* --------------------------------------------------------------- */408 409 /* set CAL mode to normal */410 regs[R_EP4] &= ~0x03;411 412 /* switch on agc1 */413 regs[R_EP3] &= ~0x40; /* sm_lt = 0 */414 415 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */416 tda18271_write_regs(fe, R_EB18, 1);417 418 tda18271_write_regs(fe, R_EP3, 2);419 420 /* synchronization */421 tda18271_write_regs(fe, R_EP1, 1);422 423 /* get calibration result */424 tda18271_read_extended(fe);425 426 return regs[R_EB14];427}428 429static int tda18271_powerscan(struct dvb_frontend *fe,430 u32 *freq_in, u32 *freq_out)431{432 struct tda18271_priv *priv = fe->tuner_priv;433 unsigned char *regs = priv->tda18271_regs;434 int sgn, bcal, count, wait, ret;435 u8 cid_target;436 u16 count_limit;437 u32 freq;438 439 freq = *freq_in;440 441 tda18271_calc_rf_band(fe, &freq);442 tda18271_calc_rf_cal(fe, &freq);443 tda18271_calc_gain_taper(fe, &freq);444 tda18271_lookup_cid_target(fe, &freq, &cid_target, &count_limit);445 446 tda18271_write_regs(fe, R_EP2, 1);447 tda18271_write_regs(fe, R_EB14, 1);448 449 /* downconvert frequency */450 freq += 1000000;451 452 tda18271_calc_main_pll(fe, freq);453 tda18271_write_regs(fe, R_MPD, 4);454 455 msleep(5); /* pll locking */456 457 /* detection mode */458 regs[R_EP4] &= ~0x03;459 regs[R_EP4] |= 0x01;460 tda18271_write_regs(fe, R_EP4, 1);461 462 /* launch power detection measurement */463 tda18271_write_regs(fe, R_EP2, 1);464 465 /* read power detection info, stored in EB10 */466 ret = tda18271_read_extended(fe);467 if (tda_fail(ret))468 return ret;469 470 /* algorithm initialization */471 sgn = 1;472 *freq_out = *freq_in;473 count = 0;474 wait = false;475 476 while ((regs[R_EB10] & 0x3f) < cid_target) {477 /* downconvert updated freq to 1 MHz */478 freq = *freq_in + (sgn * count) + 1000000;479 480 tda18271_calc_main_pll(fe, freq);481 tda18271_write_regs(fe, R_MPD, 4);482 483 if (wait) {484 msleep(5); /* pll locking */485 wait = false;486 } else487 udelay(100); /* pll locking */488 489 /* launch power detection measurement */490 tda18271_write_regs(fe, R_EP2, 1);491 492 /* read power detection info, stored in EB10 */493 ret = tda18271_read_extended(fe);494 if (tda_fail(ret))495 return ret;496 497 count += 200;498 499 if (count <= count_limit)500 continue;501 502 if (sgn <= 0)503 break;504 505 sgn = -1 * sgn;506 count = 200;507 wait = true;508 }509 510 if ((regs[R_EB10] & 0x3f) >= cid_target) {511 bcal = 1;512 *freq_out = freq - 1000000;513 } else514 bcal = 0;515 516 tda_cal("bcal = %d, freq_in = %d, freq_out = %d (freq = %d)\n",517 bcal, *freq_in, *freq_out, freq);518 519 return bcal;520}521 522static int tda18271_powerscan_init(struct dvb_frontend *fe)523{524 struct tda18271_priv *priv = fe->tuner_priv;525 unsigned char *regs = priv->tda18271_regs;526 int ret;527 528 /* set standard to digital */529 regs[R_EP3] &= ~0x1f; /* clear std bits */530 regs[R_EP3] |= 0x12;531 532 /* set cal mode to normal */533 regs[R_EP4] &= ~0x03;534 535 /* update IF output level */536 regs[R_EP4] &= ~0x1c; /* clear if level bits */537 538 ret = tda18271_write_regs(fe, R_EP3, 2);539 if (tda_fail(ret))540 goto fail;541 542 regs[R_EB18] &= ~0x03; /* set agc1_gain to 6 dB */543 ret = tda18271_write_regs(fe, R_EB18, 1);544 if (tda_fail(ret))545 goto fail;546 547 regs[R_EB21] &= ~0x03; /* set agc2_gain to -15 dB */548 549 /* 1.5 MHz low pass filter */550 regs[R_EB23] |= 0x04; /* forcelp_fc2_en = 1 */551 regs[R_EB23] |= 0x02; /* lp_fc[2] = 1 */552 553 ret = tda18271_write_regs(fe, R_EB21, 3);554fail:555 return ret;556}557 558static int tda18271_rf_tracking_filters_init(struct dvb_frontend *fe, u32 freq)559{560 struct tda18271_priv *priv = fe->tuner_priv;561 struct tda18271_rf_tracking_filter_cal *map = priv->rf_cal_state;562 unsigned char *regs = priv->tda18271_regs;563 int bcal, rf, i;564 s32 divisor, dividend;565#define RF1 0566#define RF2 1567#define RF3 2568 u32 rf_default[3];569 u32 rf_freq[3];570 s32 prog_cal[3];571 s32 prog_tab[3];572 573 i = tda18271_lookup_rf_band(fe, &freq, NULL);574 575 if (tda_fail(i))576 return i;577 578 rf_default[RF1] = 1000 * map[i].rf1_def;579 rf_default[RF2] = 1000 * map[i].rf2_def;580 rf_default[RF3] = 1000 * map[i].rf3_def;581 582 for (rf = RF1; rf <= RF3; rf++) {583 if (0 == rf_default[rf])584 return 0;585 tda_cal("freq = %d, rf = %d\n", freq, rf);586 587 /* look for optimized calibration frequency */588 bcal = tda18271_powerscan(fe, &rf_default[rf], &rf_freq[rf]);589 if (tda_fail(bcal))590 return bcal;591 592 tda18271_calc_rf_cal(fe, &rf_freq[rf]);593 prog_tab[rf] = (s32)regs[R_EB14];594 595 if (1 == bcal)596 prog_cal[rf] =597 (s32)tda18271_calibrate_rf(fe, rf_freq[rf]);598 else599 prog_cal[rf] = prog_tab[rf];600 601 switch (rf) {602 case RF1:603 map[i].rf_a1 = 0;604 map[i].rf_b1 = (prog_cal[RF1] - prog_tab[RF1]);605 map[i].rf1 = rf_freq[RF1] / 1000;606 break;607 case RF2:608 dividend = (prog_cal[RF2] - prog_tab[RF2] -609 prog_cal[RF1] + prog_tab[RF1]);610 divisor = (s32)(rf_freq[RF2] - rf_freq[RF1]) / 1000;611 map[i].rf_a1 = (dividend / divisor);612 map[i].rf2 = rf_freq[RF2] / 1000;613 break;614 case RF3:615 dividend = (prog_cal[RF3] - prog_tab[RF3] -616 prog_cal[RF2] + prog_tab[RF2]);617 divisor = (s32)(rf_freq[RF3] - rf_freq[RF2]) / 1000;618 map[i].rf_a2 = (dividend / divisor);619 map[i].rf_b2 = (prog_cal[RF2] - prog_tab[RF2]);620 map[i].rf3 = rf_freq[RF3] / 1000;621 break;622 default:623 BUG();624 }625 }626 627 return 0;628}629 630static int tda18271_calc_rf_filter_curve(struct dvb_frontend *fe)631{632 struct tda18271_priv *priv = fe->tuner_priv;633 unsigned int i;634 int ret;635 636 tda_info("performing RF tracking filter calibration\n");637 638 /* wait for die temperature stabilization */639 msleep(200);640 641 ret = tda18271_powerscan_init(fe);642 if (tda_fail(ret))643 goto fail;644 645 /* rf band calibration */646 for (i = 0; priv->rf_cal_state[i].rfmax != 0; i++) {647 ret =648 tda18271_rf_tracking_filters_init(fe, 1000 *649 priv->rf_cal_state[i].rfmax);650 if (tda_fail(ret))651 goto fail;652 }653 654 priv->tm_rfcal = tda18271_read_thermometer(fe);655fail:656 return ret;657}658 659/* ------------------------------------------------------------------ */660 661static int tda18271c2_rf_cal_init(struct dvb_frontend *fe)662{663 struct tda18271_priv *priv = fe->tuner_priv;664 unsigned char *regs = priv->tda18271_regs;665 int ret;666 667 /* test RF_CAL_OK to see if we need init */668 if ((regs[R_EP1] & 0x10) == 0)669 priv->cal_initialized = false;670 671 if (priv->cal_initialized)672 return 0;673 674 ret = tda18271_calc_rf_filter_curve(fe);675 if (tda_fail(ret))676 goto fail;677 678 ret = tda18271_por(fe);679 if (tda_fail(ret))680 goto fail;681 682 tda_info("RF tracking filter calibration complete\n");683 684 priv->cal_initialized = true;685 goto end;686fail:687 tda_info("RF tracking filter calibration failed!\n");688end:689 return ret;690}691 692static int tda18271c1_rf_tracking_filter_calibration(struct dvb_frontend *fe,693 u32 freq, u32 bw)694{695 struct tda18271_priv *priv = fe->tuner_priv;696 unsigned char *regs = priv->tda18271_regs;697 int ret;698 u32 N = 0;699 700 /* calculate bp filter */701 tda18271_calc_bp_filter(fe, &freq);702 tda18271_write_regs(fe, R_EP1, 1);703 704 regs[R_EB4] &= 0x07;705 regs[R_EB4] |= 0x60;706 tda18271_write_regs(fe, R_EB4, 1);707 708 regs[R_EB7] = 0x60;709 tda18271_write_regs(fe, R_EB7, 1);710 711 regs[R_EB14] = 0x00;712 tda18271_write_regs(fe, R_EB14, 1);713 714 regs[R_EB20] = 0xcc;715 tda18271_write_regs(fe, R_EB20, 1);716 717 /* set cal mode to RF tracking filter calibration */718 regs[R_EP4] |= 0x03;719 720 /* calculate cal pll */721 722 switch (priv->mode) {723 case TDA18271_ANALOG:724 N = freq - 1250000;725 break;726 case TDA18271_DIGITAL:727 N = freq + bw / 2;728 break;729 }730 731 tda18271_calc_cal_pll(fe, N);732 733 /* calculate main pll */734 735 switch (priv->mode) {736 case TDA18271_ANALOG:737 N = freq - 250000;738 break;739 case TDA18271_DIGITAL:740 N = freq + bw / 2 + 1000000;741 break;742 }743 744 tda18271_calc_main_pll(fe, N);745 746 ret = tda18271_write_regs(fe, R_EP3, 11);747 if (tda_fail(ret))748 return ret;749 750 msleep(5); /* RF tracking filter calibration initialization */751 752 /* search for K,M,CO for RF calibration */753 tda18271_calc_km(fe, &freq);754 tda18271_write_regs(fe, R_EB13, 1);755 756 /* search for rf band */757 tda18271_calc_rf_band(fe, &freq);758 759 /* search for gain taper */760 tda18271_calc_gain_taper(fe, &freq);761 762 tda18271_write_regs(fe, R_EP2, 1);763 tda18271_write_regs(fe, R_EP1, 1);764 tda18271_write_regs(fe, R_EP2, 1);765 tda18271_write_regs(fe, R_EP1, 1);766 767 regs[R_EB4] &= 0x07;768 regs[R_EB4] |= 0x40;769 tda18271_write_regs(fe, R_EB4, 1);770 771 regs[R_EB7] = 0x40;772 tda18271_write_regs(fe, R_EB7, 1);773 msleep(10); /* pll locking */774 775 regs[R_EB20] = 0xec;776 tda18271_write_regs(fe, R_EB20, 1);777 msleep(60); /* RF tracking filter calibration completion */778 779 regs[R_EP4] &= ~0x03; /* set cal mode to normal */780 tda18271_write_regs(fe, R_EP4, 1);781 782 tda18271_write_regs(fe, R_EP1, 1);783 784 /* RF tracking filter correction for VHF_Low band */785 if (0 == tda18271_calc_rf_cal(fe, &freq))786 tda18271_write_regs(fe, R_EB14, 1);787 788 return 0;789}790 791/* ------------------------------------------------------------------ */792 793static int tda18271_ir_cal_init(struct dvb_frontend *fe)794{795 struct tda18271_priv *priv = fe->tuner_priv;796 unsigned char *regs = priv->tda18271_regs;797 int ret;798 799 ret = tda18271_read_regs(fe);800 if (tda_fail(ret))801 goto fail;802 803 /* test IR_CAL_OK to see if we need init */804 if ((regs[R_EP1] & 0x08) == 0)805 ret = tda18271_init_regs(fe);806fail:807 return ret;808}809 810static int tda18271_init(struct dvb_frontend *fe)811{812 struct tda18271_priv *priv = fe->tuner_priv;813 int ret;814 815 mutex_lock(&priv->lock);816 817 /* full power up */818 ret = tda18271_set_standby_mode(fe, 0, 0, 0);819 if (tda_fail(ret))820 goto fail;821 822 /* initialization */823 ret = tda18271_ir_cal_init(fe);824 if (tda_fail(ret))825 goto fail;826 827 if (priv->id == TDA18271HDC2)828 tda18271c2_rf_cal_init(fe);829fail:830 mutex_unlock(&priv->lock);831 832 return ret;833}834 835static int tda18271_sleep(struct dvb_frontend *fe)836{837 struct tda18271_priv *priv = fe->tuner_priv;838 int ret;839 840 mutex_lock(&priv->lock);841 842 /* enter standby mode, with required output features enabled */843 ret = tda18271_toggle_output(fe, 1);844 845 mutex_unlock(&priv->lock);846 847 return ret;848}849 850/* ------------------------------------------------------------------ */851 852static int tda18271_agc(struct dvb_frontend *fe)853{854 struct tda18271_priv *priv = fe->tuner_priv;855 int ret = 0;856 857 switch (priv->config) {858 case TDA8290_LNA_OFF:859 /* no external agc configuration required */860 if (tda18271_debug & DBG_ADV)861 tda_dbg("no agc configuration provided\n");862 break;863 case TDA8290_LNA_ON_BRIDGE:864 /* switch with GPIO of saa713x */865 tda_dbg("invoking callback\n");866 if (fe->callback)867 ret = fe->callback(priv->i2c_props.adap->algo_data,868 DVB_FRONTEND_COMPONENT_TUNER,869 TDA18271_CALLBACK_CMD_AGC_ENABLE,870 priv->mode);871 break;872 case TDA8290_LNA_GP0_HIGH_ON:873 case TDA8290_LNA_GP0_HIGH_OFF:874 default:875 /* n/a - currently not supported */876 tda_err("unsupported configuration: %d\n", priv->config);877 ret = -EINVAL;878 break;879 }880 return ret;881}882 883static int tda18271_tune(struct dvb_frontend *fe,884 struct tda18271_std_map_item *map, u32 freq, u32 bw)885{886 struct tda18271_priv *priv = fe->tuner_priv;887 int ret;888 889 tda_dbg("freq = %d, ifc = %d, bw = %d, agc_mode = %d, std = %d\n",890 freq, map->if_freq, bw, map->agc_mode, map->std);891 892 ret = tda18271_agc(fe);893 if (tda_fail(ret))894 tda_warn("failed to configure agc\n");895 896 ret = tda18271_init(fe);897 if (tda_fail(ret))898 goto fail;899 900 mutex_lock(&priv->lock);901 902 switch (priv->id) {903 case TDA18271HDC1:904 tda18271c1_rf_tracking_filter_calibration(fe, freq, bw);905 break;906 case TDA18271HDC2:907 tda18271c2_rf_tracking_filters_correction(fe, freq);908 break;909 }910 ret = tda18271_channel_configuration(fe, map, freq, bw);911 912 mutex_unlock(&priv->lock);913fail:914 return ret;915}916 917/* ------------------------------------------------------------------ */918 919static int tda18271_set_params(struct dvb_frontend *fe)920{921 struct dtv_frontend_properties *c = &fe->dtv_property_cache;922 u32 delsys = c->delivery_system;923 u32 bw = c->bandwidth_hz;924 u32 freq = c->frequency;925 struct tda18271_priv *priv = fe->tuner_priv;926 struct tda18271_std_map *std_map = &priv->std;927 struct tda18271_std_map_item *map;928 int ret;929 930 priv->mode = TDA18271_DIGITAL;931 932 switch (delsys) {933 case SYS_ATSC:934 map = &std_map->atsc_6;935 bw = 6000000;936 break;937 case SYS_ISDBT:938 case SYS_DVBT:939 case SYS_DVBT2:940 if (bw <= 6000000) {941 map = &std_map->dvbt_6;942 } else if (bw <= 7000000) {943 map = &std_map->dvbt_7;944 } else {945 map = &std_map->dvbt_8;946 }947 break;948 case SYS_DVBC_ANNEX_B:949 bw = 6000000;950 fallthrough;951 case SYS_DVBC_ANNEX_A:952 case SYS_DVBC_ANNEX_C:953 if (bw <= 6000000) {954 map = &std_map->qam_6;955 } else if (bw <= 7000000) {956 map = &std_map->qam_7;957 } else {958 map = &std_map->qam_8;959 }960 break;961 default:962 tda_warn("modulation type not supported!\n");963 return -EINVAL;964 }965 966 /* When tuning digital, the analog demod must be tri-stated */967 if (fe->ops.analog_ops.standby)968 fe->ops.analog_ops.standby(fe);969 970 ret = tda18271_tune(fe, map, freq, bw);971 972 if (tda_fail(ret))973 goto fail;974 975 priv->if_freq = map->if_freq;976 priv->frequency = freq;977 priv->bandwidth = bw;978fail:979 return ret;980}981 982static int tda18271_set_analog_params(struct dvb_frontend *fe,983 struct analog_parameters *params)984{985 struct tda18271_priv *priv = fe->tuner_priv;986 struct tda18271_std_map *std_map = &priv->std;987 struct tda18271_std_map_item *map;988 char *mode;989 int ret;990 u32 freq = params->frequency * 125 *991 ((params->mode == V4L2_TUNER_RADIO) ? 1 : 1000) / 2;992 993 priv->mode = TDA18271_ANALOG;994 995 if (params->mode == V4L2_TUNER_RADIO) {996 map = &std_map->fm_radio;997 mode = "fm";998 } else if (params->std & V4L2_STD_MN) {999 map = &std_map->atv_mn;1000 mode = "MN";1001 } else if (params->std & V4L2_STD_B) {1002 map = &std_map->atv_b;1003 mode = "B";1004 } else if (params->std & V4L2_STD_GH) {1005 map = &std_map->atv_gh;1006 mode = "GH";1007 } else if (params->std & V4L2_STD_PAL_I) {1008 map = &std_map->atv_i;1009 mode = "I";1010 } else if (params->std & V4L2_STD_DK) {1011 map = &std_map->atv_dk;1012 mode = "DK";1013 } else if (params->std & V4L2_STD_SECAM_L) {1014 map = &std_map->atv_l;1015 mode = "L";1016 } else if (params->std & V4L2_STD_SECAM_LC) {1017 map = &std_map->atv_lc;1018 mode = "L'";1019 } else {1020 map = &std_map->atv_i;1021 mode = "xx";1022 }1023 1024 tda_dbg("setting tda18271 to system %s\n", mode);1025 1026 ret = tda18271_tune(fe, map, freq, 0);1027 1028 if (tda_fail(ret))1029 goto fail;1030 1031 priv->if_freq = map->if_freq;1032 priv->frequency = freq;1033 priv->bandwidth = 0;1034fail:1035 return ret;1036}1037 1038static void tda18271_release(struct dvb_frontend *fe)1039{1040 struct tda18271_priv *priv = fe->tuner_priv;1041 1042 mutex_lock(&tda18271_list_mutex);1043 1044 if (priv)1045 hybrid_tuner_release_state(priv);1046 1047 mutex_unlock(&tda18271_list_mutex);1048 1049 fe->tuner_priv = NULL;1050}1051 1052static int tda18271_get_frequency(struct dvb_frontend *fe, u32 *frequency)1053{1054 struct tda18271_priv *priv = fe->tuner_priv;1055 *frequency = priv->frequency;1056 return 0;1057}1058 1059static int tda18271_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)1060{1061 struct tda18271_priv *priv = fe->tuner_priv;1062 *bandwidth = priv->bandwidth;1063 return 0;1064}1065 1066static int tda18271_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)1067{1068 struct tda18271_priv *priv = fe->tuner_priv;1069 *frequency = (u32)priv->if_freq * 1000;1070 return 0;1071}1072 1073/* ------------------------------------------------------------------ */1074 1075#define tda18271_update_std(std_cfg, name) do { \1076 if (map->std_cfg.if_freq + \1077 map->std_cfg.agc_mode + map->std_cfg.std + \1078 map->std_cfg.if_lvl + map->std_cfg.rfagc_top > 0) { \1079 tda_dbg("Using custom std config for %s\n", name); \1080 memcpy(&std->std_cfg, &map->std_cfg, \1081 sizeof(struct tda18271_std_map_item)); \1082 } } while (0)1083 1084#define tda18271_dump_std_item(std_cfg, name) do { \1085 tda_dbg("(%s) if_freq = %d, agc_mode = %d, std = %d, " \1086 "if_lvl = %d, rfagc_top = 0x%02x\n", \1087 name, std->std_cfg.if_freq, \1088 std->std_cfg.agc_mode, std->std_cfg.std, \1089 std->std_cfg.if_lvl, std->std_cfg.rfagc_top); \1090 } while (0)1091 1092static int tda18271_dump_std_map(struct dvb_frontend *fe)1093{1094 struct tda18271_priv *priv = fe->tuner_priv;1095 struct tda18271_std_map *std = &priv->std;1096 1097 tda_dbg("========== STANDARD MAP SETTINGS ==========\n");1098 tda18271_dump_std_item(fm_radio, " fm ");1099 tda18271_dump_std_item(atv_b, "atv b ");1100 tda18271_dump_std_item(atv_dk, "atv dk");1101 tda18271_dump_std_item(atv_gh, "atv gh");1102 tda18271_dump_std_item(atv_i, "atv i ");1103 tda18271_dump_std_item(atv_l, "atv l ");1104 tda18271_dump_std_item(atv_lc, "atv l'");1105 tda18271_dump_std_item(atv_mn, "atv mn");1106 tda18271_dump_std_item(atsc_6, "atsc 6");1107 tda18271_dump_std_item(dvbt_6, "dvbt 6");1108 tda18271_dump_std_item(dvbt_7, "dvbt 7");1109 tda18271_dump_std_item(dvbt_8, "dvbt 8");1110 tda18271_dump_std_item(qam_6, "qam 6 ");1111 tda18271_dump_std_item(qam_7, "qam 7 ");1112 tda18271_dump_std_item(qam_8, "qam 8 ");1113 1114 return 0;1115}1116 1117static int tda18271_update_std_map(struct dvb_frontend *fe,1118 struct tda18271_std_map *map)1119{1120 struct tda18271_priv *priv = fe->tuner_priv;1121 struct tda18271_std_map *std = &priv->std;1122 1123 if (!map)1124 return -EINVAL;1125 1126 tda18271_update_std(fm_radio, "fm");1127 tda18271_update_std(atv_b, "atv b");1128 tda18271_update_std(atv_dk, "atv dk");1129 tda18271_update_std(atv_gh, "atv gh");1130 tda18271_update_std(atv_i, "atv i");1131 tda18271_update_std(atv_l, "atv l");1132 tda18271_update_std(atv_lc, "atv l'");1133 tda18271_update_std(atv_mn, "atv mn");1134 tda18271_update_std(atsc_6, "atsc 6");1135 tda18271_update_std(dvbt_6, "dvbt 6");1136 tda18271_update_std(dvbt_7, "dvbt 7");1137 tda18271_update_std(dvbt_8, "dvbt 8");1138 tda18271_update_std(qam_6, "qam 6");1139 tda18271_update_std(qam_7, "qam 7");1140 tda18271_update_std(qam_8, "qam 8");1141 1142 return 0;1143}1144 1145static int tda18271_get_id(struct dvb_frontend *fe)1146{1147 struct tda18271_priv *priv = fe->tuner_priv;1148 unsigned char *regs = priv->tda18271_regs;1149 char *name;1150 int ret;1151 1152 mutex_lock(&priv->lock);1153 ret = tda18271_read_regs(fe);1154 mutex_unlock(&priv->lock);1155 1156 if (ret) {1157 tda_info("Error reading device ID @ %d-%04x, bailing out.\n",1158 i2c_adapter_id(priv->i2c_props.adap),1159 priv->i2c_props.addr);1160 return -EIO;1161 }1162 1163 switch (regs[R_ID] & 0x7f) {1164 case 3:1165 name = "TDA18271HD/C1";1166 priv->id = TDA18271HDC1;1167 break;1168 case 4:1169 name = "TDA18271HD/C2";1170 priv->id = TDA18271HDC2;1171 break;1172 default:1173 tda_info("Unknown device (%i) detected @ %d-%04x, device not supported.\n",1174 regs[R_ID], i2c_adapter_id(priv->i2c_props.adap),1175 priv->i2c_props.addr);1176 return -EINVAL;1177 }1178 1179 tda_info("%s detected @ %d-%04x\n", name,1180 i2c_adapter_id(priv->i2c_props.adap), priv->i2c_props.addr);1181 1182 return 0;1183}1184 1185static int tda18271_setup_configuration(struct dvb_frontend *fe,1186 struct tda18271_config *cfg)1187{1188 struct tda18271_priv *priv = fe->tuner_priv;1189 1190 priv->gate = (cfg) ? cfg->gate : TDA18271_GATE_AUTO;1191 priv->role = (cfg) ? cfg->role : TDA18271_MASTER;1192 priv->config = (cfg) ? cfg->config : 0;1193 priv->small_i2c = (cfg) ?1194 cfg->small_i2c : TDA18271_39_BYTE_CHUNK_INIT;1195 priv->output_opt = (cfg) ?1196 cfg->output_opt : TDA18271_OUTPUT_LT_XT_ON;1197 1198 return 0;1199}1200 1201static inline int tda18271_need_cal_on_startup(struct tda18271_config *cfg)1202{1203 /* tda18271_cal_on_startup == -1 when cal module option is unset */1204 return ((tda18271_cal_on_startup == -1) ?1205 /* honor configuration setting */1206 ((cfg) && (cfg->rf_cal_on_startup)) :1207 /* module option overrides configuration setting */1208 (tda18271_cal_on_startup)) ? 1 : 0;1209}1210 1211static int tda18271_set_config(struct dvb_frontend *fe, void *priv_cfg)1212{1213 struct tda18271_config *cfg = (struct tda18271_config *) priv_cfg;1214 1215 tda18271_setup_configuration(fe, cfg);1216 1217 if (tda18271_need_cal_on_startup(cfg))1218 tda18271_init(fe);1219 1220 /* override default std map with values in config struct */1221 if ((cfg) && (cfg->std_map))1222 tda18271_update_std_map(fe, cfg->std_map);1223 1224 return 0;1225}1226 1227static const struct dvb_tuner_ops tda18271_tuner_ops = {1228 .info = {1229 .name = "NXP TDA18271HD",1230 .frequency_min_hz = 45 * MHz,1231 .frequency_max_hz = 864 * MHz,1232 .frequency_step_hz = 625001233 },1234 .init = tda18271_init,1235 .sleep = tda18271_sleep,1236 .set_params = tda18271_set_params,1237 .set_analog_params = tda18271_set_analog_params,1238 .release = tda18271_release,1239 .set_config = tda18271_set_config,1240 .get_frequency = tda18271_get_frequency,1241 .get_bandwidth = tda18271_get_bandwidth,1242 .get_if_frequency = tda18271_get_if_frequency,1243};1244 1245struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr,1246 struct i2c_adapter *i2c,1247 struct tda18271_config *cfg)1248{1249 struct tda18271_priv *priv = NULL;1250 int instance, ret;1251 1252 mutex_lock(&tda18271_list_mutex);1253 1254 instance = hybrid_tuner_request_state(struct tda18271_priv, priv,1255 hybrid_tuner_instance_list,1256 i2c, addr, "tda18271");1257 switch (instance) {1258 case 0:1259 goto fail;1260 case 1:1261 /* new tuner instance */1262 fe->tuner_priv = priv;1263 1264 tda18271_setup_configuration(fe, cfg);1265 1266 priv->cal_initialized = false;1267 mutex_init(&priv->lock);1268 1269 ret = tda18271_get_id(fe);1270 if (tda_fail(ret))1271 goto fail;1272 1273 ret = tda18271_assign_map_layout(fe);1274 if (tda_fail(ret))1275 goto fail;1276 1277 /* if delay_cal is set, delay IR & RF calibration until init()1278 * module option 'cal' overrides this delay */1279 if ((cfg->delay_cal) && (!tda18271_need_cal_on_startup(cfg)))1280 break;1281 1282 mutex_lock(&priv->lock);1283 tda18271_init_regs(fe);1284 1285 if ((tda18271_need_cal_on_startup(cfg)) &&1286 (priv->id == TDA18271HDC2))1287 tda18271c2_rf_cal_init(fe);1288 1289 /* enter standby mode, with required output features enabled */1290 ret = tda18271_toggle_output(fe, 1);1291 tda_fail(ret);1292 1293 mutex_unlock(&priv->lock);1294 break;1295 default:1296 /* existing tuner instance */1297 fe->tuner_priv = priv;1298 1299 /* allow dvb driver to override configuration settings */1300 if (cfg) {1301 if (cfg->gate != TDA18271_GATE_ANALOG)1302 priv->gate = cfg->gate;1303 if (cfg->role)1304 priv->role = cfg->role;1305 if (cfg->config)1306 priv->config = cfg->config;1307 if (cfg->small_i2c)1308 priv->small_i2c = cfg->small_i2c;1309 if (cfg->output_opt)1310 priv->output_opt = cfg->output_opt;1311 if (cfg->std_map)1312 tda18271_update_std_map(fe, cfg->std_map);1313 }1314 if (tda18271_need_cal_on_startup(cfg))1315 tda18271_init(fe);1316 break;1317 }1318 1319 /* override default std map with values in config struct */1320 if ((cfg) && (cfg->std_map))1321 tda18271_update_std_map(fe, cfg->std_map);1322 1323 mutex_unlock(&tda18271_list_mutex);1324 1325 memcpy(&fe->ops.tuner_ops, &tda18271_tuner_ops,1326 sizeof(struct dvb_tuner_ops));1327 1328 if (tda18271_debug & (DBG_MAP | DBG_ADV))1329 tda18271_dump_std_map(fe);1330 1331 return fe;1332fail:1333 mutex_unlock(&tda18271_list_mutex);1334 1335 tda18271_release(fe);1336 return NULL;1337}1338EXPORT_SYMBOL_GPL(tda18271_attach);1339MODULE_DESCRIPTION("NXP TDA18271HD analog / digital tuner driver");1340MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");1341MODULE_LICENSE("GPL");1342MODULE_VERSION("0.4");1343