drivers/media/tuners/tda18271-fe.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3     tda18271-fe.c - driver for the Philips / NXP TDA18271 silicon tuner
   4
   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
  15 int tda18271_debug;
  16 module_param_named(debug, tda18271_debug, int, 0644);
  17 MODULE_PARM_DESC(debug, "set debug level (info=1, map=2, reg=4, adv=8, cal=16 (or-able))");
  18
  19 static int tda18271_cal_on_startup = -1;
  20 module_param_named(cal, tda18271_cal_on_startup, int, 0644);
  21 MODULE_PARM_DESC(cal, "perform RF tracking filter calibration on startup");
  22
  23 static DEFINE_MUTEX(tda18271_list_mutex);
  24 static LIST_HEAD(hybrid_tuner_instance_list);
  25
  26 /*---------------------------------------------------------------------*/
  27
  28 static 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");
  43 fail:
  44         return ret;
  45 }
  46
  47 /*---------------------------------------------------------------------*/
  48
  49 static 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
  58 static 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
  73 static 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                 else
 191                         regs[R_EP3] |= 0x04;
 192                 ret = tda18271_write_regs(fe, R_EP3, 1);
 193         }
 194 fail:
 195         return ret;
 196 }
 197
 198 static 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                 else
 217                         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
 242 static 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);
 289 fail:
 290         return ret;
 291 }
 292
 293 static 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);
 322 fail:
 323         return ret;
 324 }
 325
 326 static 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
 429 static 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                 } else
 487                         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         } else
 514                 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
 522 static 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);
 554 fail:
 555         return ret;
 556 }
 557
 558 static 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 0
 566 #define RF2 1
 567 #define RF3 2
 568         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                 else
 599                         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
 630 static 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);
 655 fail:
 656         return ret;
 657 }
 658
 659 /* ------------------------------------------------------------------ */
 660
 661 static 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;
 686 fail:
 687         tda_info("RF tracking filter calibration failed!\n");
 688 end:
 689         return ret;
 690 }
 691
 692 static 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
 793 static 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);
 806 fail:
 807         return ret;
 808 }
 809
 810 static 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);
 829 fail:
 830         mutex_unlock(&priv->lock);
 831
 832         return ret;
 833 }
 834
 835 static 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
 852 static 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
 883 static 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);
 913 fail:
 914         return ret;
 915 }
 916
 917 /* ------------------------------------------------------------------ */
 918
 919 static 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;
 978 fail:
 979         return ret;
 980 }
 981
 982 static 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;
1034 fail:
1035         return ret;
1036 }
1037
1038 static 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
1052 static 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
1059 static 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
1066 static 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
1092 static 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
1117 static 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
1145 static 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
1185 static 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
1201 static 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
1211 static 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
1227 static 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 = 62500
1233         },
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
1245 struct 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;
1332 fail:
1333         mutex_unlock(&tda18271_list_mutex);
1334
1335         tda18271_release(fe);
1336         return NULL;
1337 }
1338 EXPORT_SYMBOL_GPL(tda18271_attach);
1339 MODULE_DESCRIPTION("NXP TDA18271HD analog / digital tuner driver");
1340 MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
1341 MODULE_LICENSE("GPL");
1342 MODULE_VERSION("0.4");