drivers/media/tuners/tuner-simple.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * i2c tv tuner chip device driver
   4  * controls all those simple 4-control-bytes style tuners.
   5  *
   6  * This "tuner-simple" module was split apart from the original "tuner" module.
   7  */
   8 #include <linux/delay.h>
   9 #include <linux/i2c.h>
  10 #include <linux/videodev2.h>
  11 #include <media/tuner.h>
  12 #include <media/v4l2-common.h>
  13 #include <media/tuner-types.h>
  14 #include "tuner-i2c.h"
  15 #include "tuner-simple.h"
  16
  17 static int debug;
  18 module_param(debug, int, 0644);
  19 MODULE_PARM_DESC(debug, "enable verbose debug messages");
  20
  21 #define TUNER_SIMPLE_MAX 64
  22 static unsigned int simple_devcount;
  23
  24 static int offset;
  25 module_param(offset, int, 0664);
  26 MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");
  27
  28 static unsigned int atv_input[TUNER_SIMPLE_MAX] = \
  29                         { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
  30 static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \
  31                         { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
  32 module_param_array(atv_input, int, NULL, 0644);
  33 module_param_array(dtv_input, int, NULL, 0644);
  34 MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect");
  35 MODULE_PARM_DESC(dtv_input, "specify dtv rf input, 0 for autoselect");
  36
  37 /* ---------------------------------------------------------------------- */
  38
  39 /* tv standard selection for Temic 4046 FM5
  40    this value takes the low bits of control byte 2
  41    from datasheet Rev.01, Feb.00
  42      standard     BG      I       L       L2      D
  43      picture IF   38.9    38.9    38.9    33.95   38.9
  44      sound 1      33.4    32.9    32.4    40.45   32.4
  45      sound 2      33.16
  46      NICAM        33.05   32.348  33.05           33.05
  47  */
  48 #define TEMIC_SET_PAL_I         0x05
  49 #define TEMIC_SET_PAL_DK        0x09
  50 #define TEMIC_SET_PAL_L         0x0a /* SECAM ? */
  51 #define TEMIC_SET_PAL_L2        0x0b /* change IF ! */
  52 #define TEMIC_SET_PAL_BG        0x0c
  53
  54 /* tv tuner system standard selection for Philips FQ1216ME
  55    this value takes the low bits of control byte 2
  56    from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
  57      standard           BG      DK      I       L       L`
  58      picture carrier    38.90   38.90   38.90   38.90   33.95
  59      colour             34.47   34.47   34.47   34.47   38.38
  60      sound 1            33.40   32.40   32.90   32.40   40.45
  61      sound 2            33.16   -       -       -       -
  62      NICAM              33.05   33.05   32.35   33.05   39.80
  63  */
  64 #define PHILIPS_SET_PAL_I       0x01 /* Bit 2 always zero !*/
  65 #define PHILIPS_SET_PAL_BGDK    0x09
  66 #define PHILIPS_SET_PAL_L2      0x0a
  67 #define PHILIPS_SET_PAL_L       0x0b
  68
  69 /* system switching for Philips FI1216MF MK2
  70    from datasheet "1996 Jul 09",
  71     standard         BG     L      L'
  72     picture carrier  38.90  38.90  33.95
  73     colour           34.47  34.37  38.38
  74     sound 1          33.40  32.40  40.45
  75     sound 2          33.16  -      -
  76     NICAM            33.05  33.05  39.80
  77  */
  78 #define PHILIPS_MF_SET_STD_BG   0x01 /* Bit 2 must be zero, Bit 3 is system output */
  79 #define PHILIPS_MF_SET_STD_L    0x03 /* Used on Secam France */
  80 #define PHILIPS_MF_SET_STD_LC   0x02 /* Used on SECAM L' */
  81
  82 /* Control byte */
  83
  84 #define TUNER_RATIO_MASK        0x06 /* Bit cb1:cb2 */
  85 #define TUNER_RATIO_SELECT_50   0x00
  86 #define TUNER_RATIO_SELECT_32   0x02
  87 #define TUNER_RATIO_SELECT_166  0x04
  88 #define TUNER_RATIO_SELECT_62   0x06
  89
  90 #define TUNER_CHARGE_PUMP       0x40  /* Bit cb6 */
  91
  92 /* Status byte */
  93
  94 #define TUNER_POR         0x80
  95 #define TUNER_FL          0x40
  96 #define TUNER_MODE        0x38
  97 #define TUNER_AFC         0x07
  98 #define TUNER_SIGNAL      0x07
  99 #define TUNER_STEREO      0x10
 100
 101 #define TUNER_PLL_LOCKED   0x40
 102 #define TUNER_STEREO_MK3   0x04
 103
 104 static DEFINE_MUTEX(tuner_simple_list_mutex);
 105 static LIST_HEAD(hybrid_tuner_instance_list);
 106
 107 struct tuner_simple_priv {
 108         unsigned int nr;
 109         u16 last_div;
 110
 111         struct tuner_i2c_props i2c_props;
 112         struct list_head hybrid_tuner_instance_list;
 113
 114         unsigned int type;
 115         struct tunertype *tun;
 116
 117         u32 frequency;
 118         u32 bandwidth;
 119         bool radio_mode;
 120 };
 121
 122 /* ---------------------------------------------------------------------- */
 123
 124 static int tuner_read_status(struct dvb_frontend *fe)
 125 {
 126         struct tuner_simple_priv *priv = fe->tuner_priv;
 127         unsigned char byte;
 128
 129         if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))
 130                 return 0;
 131
 132         return byte;
 133 }
 134
 135 static inline int tuner_signal(const int status)
 136 {
 137         return (status & TUNER_SIGNAL) << 13;
 138 }
 139
 140 static inline int tuner_stereo(const int type, const int status)
 141 {
 142         switch (type) {
 143         case TUNER_PHILIPS_FM1216ME_MK3:
 144         case TUNER_PHILIPS_FM1236_MK3:
 145         case TUNER_PHILIPS_FM1256_IH3:
 146         case TUNER_LG_NTSC_TAPE:
 147         case TUNER_TCL_MF02GIP_5N:
 148                 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
 149         case TUNER_PHILIPS_FM1216MK5:
 150                 return status | TUNER_STEREO;
 151         default:
 152                 return status & TUNER_STEREO;
 153         }
 154 }
 155
 156 static inline int tuner_islocked(const int status)
 157 {
 158         return (status & TUNER_FL);
 159 }
 160
 161 static inline int tuner_afcstatus(const int status)
 162 {
 163         return (status & TUNER_AFC) - 2;
 164 }
 165
 166
 167 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
 168 {
 169         struct tuner_simple_priv *priv = fe->tuner_priv;
 170         int tuner_status;
 171
 172         if (priv->i2c_props.adap == NULL)
 173                 return -EINVAL;
 174
 175         tuner_status = tuner_read_status(fe);
 176
 177         *status = 0;
 178
 179         if (tuner_islocked(tuner_status))
 180                 *status = TUNER_STATUS_LOCKED;
 181         if (tuner_stereo(priv->type, tuner_status))
 182                 *status |= TUNER_STATUS_STEREO;
 183
 184         tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
 185
 186         return 0;
 187 }
 188
 189 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
 190 {
 191         struct tuner_simple_priv *priv = fe->tuner_priv;
 192         int signal;
 193
 194         if (priv->i2c_props.adap == NULL || !priv->radio_mode)
 195                 return -EINVAL;
 196
 197         signal = tuner_signal(tuner_read_status(fe));
 198
 199         *strength = signal;
 200
 201         tuner_dbg("Signal strength: %d\n", signal);
 202
 203         return 0;
 204 }
 205
 206 /* ---------------------------------------------------------------------- */
 207
 208 static inline char *tuner_param_name(enum param_type type)
 209 {
 210         char *name;
 211
 212         switch (type) {
 213         case TUNER_PARAM_TYPE_RADIO:
 214                 name = "radio";
 215                 break;
 216         case TUNER_PARAM_TYPE_PAL:
 217                 name = "pal";
 218                 break;
 219         case TUNER_PARAM_TYPE_SECAM:
 220                 name = "secam";
 221                 break;
 222         case TUNER_PARAM_TYPE_NTSC:
 223                 name = "ntsc";
 224                 break;
 225         case TUNER_PARAM_TYPE_DIGITAL:
 226                 name = "digital";
 227                 break;
 228         default:
 229                 name = "unknown";
 230                 break;
 231         }
 232         return name;
 233 }
 234
 235 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
 236                                                 enum param_type desired_type)
 237 {
 238         struct tuner_simple_priv *priv = fe->tuner_priv;
 239         struct tunertype *tun = priv->tun;
 240         int i;
 241
 242         for (i = 0; i < tun->count; i++)
 243                 if (desired_type == tun->params[i].type)
 244                         break;
 245
 246         /* use default tuner params if desired_type not available */
 247         if (i == tun->count) {
 248                 tuner_dbg("desired params (%s) undefined for tuner %d\n",
 249                           tuner_param_name(desired_type), priv->type);
 250                 i = 0;
 251         }
 252
 253         tuner_dbg("using tuner params #%d (%s)\n", i,
 254                   tuner_param_name(tun->params[i].type));
 255
 256         return &tun->params[i];
 257 }
 258
 259 static int simple_config_lookup(struct dvb_frontend *fe,
 260                                 struct tuner_params *t_params,
 261                                 unsigned *frequency, u8 *config, u8 *cb)
 262 {
 263         struct tuner_simple_priv *priv = fe->tuner_priv;
 264         int i;
 265
 266         for (i = 0; i < t_params->count; i++) {
 267                 if (*frequency > t_params->ranges[i].limit)
 268                         continue;
 269                 break;
 270         }
 271         if (i == t_params->count) {
 272                 tuner_dbg("frequency out of range (%d > %d)\n",
 273                           *frequency, t_params->ranges[i - 1].limit);
 274                 *frequency = t_params->ranges[--i].limit;
 275         }
 276         *config = t_params->ranges[i].config;
 277         *cb     = t_params->ranges[i].cb;
 278
 279         tuner_dbg("freq = %d.%02d (%d), range = %d, config = 0x%02x, cb = 0x%02x\n",
 280                   *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
 281                   i, *config, *cb);
 282
 283         return i;
 284 }
 285
 286 /* ---------------------------------------------------------------------- */
 287
 288 static void simple_set_rf_input(struct dvb_frontend *fe,
 289                                 u8 *config, u8 *cb, unsigned int rf)
 290 {
 291         struct tuner_simple_priv *priv = fe->tuner_priv;
 292
 293         switch (priv->type) {
 294         case TUNER_PHILIPS_TUV1236D:
 295                 switch (rf) {
 296                 case 1:
 297                         *cb |= 0x08;
 298                         break;
 299                 default:
 300                         *cb &= ~0x08;
 301                         break;
 302                 }
 303                 break;
 304         case TUNER_PHILIPS_FCV1236D:
 305                 switch (rf) {
 306                 case 1:
 307                         *cb |= 0x01;
 308                         break;
 309                 default:
 310                         *cb &= ~0x01;
 311                         break;
 312                 }
 313                 break;
 314         default:
 315                 break;
 316         }
 317 }
 318
 319 static int simple_std_setup(struct dvb_frontend *fe,
 320                             struct analog_parameters *params,
 321                             u8 *config, u8 *cb)
 322 {
 323         struct tuner_simple_priv *priv = fe->tuner_priv;
 324         int rc;
 325
 326         /* tv norm specific stuff for multi-norm tuners */
 327         switch (priv->type) {
 328         case TUNER_PHILIPS_SECAM: /* FI1216MF */
 329                 /* 0x01 -> ??? no change ??? */
 330                 /* 0x02 -> PAL BDGHI / SECAM L */
 331                 /* 0x04 -> ??? PAL others / SECAM others ??? */
 332                 *cb &= ~0x03;
 333                 if (params->std & V4L2_STD_SECAM_L)
 334                         /* also valid for V4L2_STD_SECAM */
 335                         *cb |= PHILIPS_MF_SET_STD_L;
 336                 else if (params->std & V4L2_STD_SECAM_LC)
 337                         *cb |= PHILIPS_MF_SET_STD_LC;
 338                 else /* V4L2_STD_B|V4L2_STD_GH */
 339                         *cb |= PHILIPS_MF_SET_STD_BG;
 340                 break;
 341
 342         case TUNER_TEMIC_4046FM5:
 343                 *cb &= ~0x0f;
 344
 345                 if (params->std & V4L2_STD_PAL_BG) {
 346                         *cb |= TEMIC_SET_PAL_BG;
 347
 348                 } else if (params->std & V4L2_STD_PAL_I) {
 349                         *cb |= TEMIC_SET_PAL_I;
 350
 351                 } else if (params->std & V4L2_STD_PAL_DK) {
 352                         *cb |= TEMIC_SET_PAL_DK;
 353
 354                 } else if (params->std & V4L2_STD_SECAM_L) {
 355                         *cb |= TEMIC_SET_PAL_L;
 356
 357                 }
 358                 break;
 359
 360         case TUNER_PHILIPS_FQ1216ME:
 361                 *cb &= ~0x0f;
 362
 363                 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
 364                         *cb |= PHILIPS_SET_PAL_BGDK;
 365
 366                 } else if (params->std & V4L2_STD_PAL_I) {
 367                         *cb |= PHILIPS_SET_PAL_I;
 368
 369                 } else if (params->std & V4L2_STD_SECAM_L) {
 370                         *cb |= PHILIPS_SET_PAL_L;
 371
 372                 }
 373                 break;
 374
 375         case TUNER_PHILIPS_FCV1236D:
 376                 /* 0x00 -> ATSC antenna input 1 */
 377                 /* 0x01 -> ATSC antenna input 2 */
 378                 /* 0x02 -> NTSC antenna input 1 */
 379                 /* 0x03 -> NTSC antenna input 2 */
 380                 *cb &= ~0x03;
 381                 if (!(params->std & V4L2_STD_ATSC))
 382                         *cb |= 2;
 383                 break;
 384
 385         case TUNER_MICROTUNE_4042FI5:
 386                 /* Set the charge pump for fast tuning */
 387                 *config |= TUNER_CHARGE_PUMP;
 388                 break;
 389
 390         case TUNER_PHILIPS_TUV1236D:
 391         {
 392                 struct tuner_i2c_props i2c = priv->i2c_props;
 393                 /* 0x40 -> ATSC antenna input 1 */
 394                 /* 0x48 -> ATSC antenna input 2 */
 395                 /* 0x00 -> NTSC antenna input 1 */
 396                 /* 0x08 -> NTSC antenna input 2 */
 397                 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
 398                 *cb &= ~0x40;
 399                 if (params->std & V4L2_STD_ATSC) {
 400                         *cb |= 0x40;
 401                         buffer[1] = 0x04;
 402                 }
 403                 /* set to the correct mode (analog or digital) */
 404                 i2c.addr = 0x0a;
 405                 rc = tuner_i2c_xfer_send(&i2c, &buffer[0], 2);
 406                 if (2 != rc)
 407                         tuner_warn("i2c i/o error: rc == %d (should be 2)\n",
 408                                    rc);
 409                 rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2);
 410                 if (2 != rc)
 411                         tuner_warn("i2c i/o error: rc == %d (should be 2)\n",
 412                                    rc);
 413                 break;
 414         }
 415         }
 416         if (atv_input[priv->nr])
 417                 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
 418
 419         return 0;
 420 }
 421
 422 static int simple_set_aux_byte(struct dvb_frontend *fe, u8 config, u8 aux)
 423 {
 424         struct tuner_simple_priv *priv = fe->tuner_priv;
 425         int rc;
 426         u8 buffer[2];
 427
 428         buffer[0] = (config & ~0x38) | 0x18;
 429         buffer[1] = aux;
 430
 431         tuner_dbg("setting aux byte: 0x%02x 0x%02x\n", buffer[0], buffer[1]);
 432
 433         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
 434         if (2 != rc)
 435                 tuner_warn("i2c i/o error: rc == %d (should be 2)\n", rc);
 436
 437         return rc == 2 ? 0 : rc;
 438 }
 439
 440 static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
 441                             u16 div, u8 config, u8 cb)
 442 {
 443         struct tuner_simple_priv *priv = fe->tuner_priv;
 444         int rc;
 445
 446         switch (priv->type) {
 447         case TUNER_LG_TDVS_H06XF:
 448                 simple_set_aux_byte(fe, config, 0x20);
 449                 break;
 450         case TUNER_PHILIPS_FQ1216LME_MK3:
 451                 simple_set_aux_byte(fe, config, 0x60); /* External AGC */
 452                 break;
 453         case TUNER_MICROTUNE_4042FI5:
 454         {
 455                 /* FIXME - this may also work for other tuners */
 456                 unsigned long timeout = jiffies + msecs_to_jiffies(1);
 457                 u8 status_byte = 0;
 458
 459                 /* Wait until the PLL locks */
 460                 for (;;) {
 461                         if (time_after(jiffies, timeout))
 462                                 return 0;
 463                         rc = tuner_i2c_xfer_recv(&priv->i2c_props,
 464                                                  &status_byte, 1);
 465                         if (1 != rc) {
 466                                 tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",
 467                                            rc);
 468                                 break;
 469                         }
 470                         if (status_byte & TUNER_PLL_LOCKED)
 471                                 break;
 472                         udelay(10);
 473                 }
 474
 475                 /* Set the charge pump for optimized phase noise figure */
 476                 config &= ~TUNER_CHARGE_PUMP;
 477                 buffer[0] = (div>>8) & 0x7f;
 478                 buffer[1] = div      & 0xff;
 479                 buffer[2] = config;
 480                 buffer[3] = cb;
 481                 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 482                           buffer[0], buffer[1], buffer[2], buffer[3]);
 483
 484                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 485                 if (4 != rc)
 486                         tuner_warn("i2c i/o error: rc == %d (should be 4)\n",
 487                                    rc);
 488                 break;
 489         }
 490         }
 491
 492         return 0;
 493 }
 494
 495 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
 496 {
 497         struct tuner_simple_priv *priv = fe->tuner_priv;
 498
 499         switch (priv->type) {
 500         case TUNER_TENA_9533_DI:
 501         case TUNER_YMEC_TVF_5533MF:
 502                 tuner_dbg("This tuner doesn't have FM. Most cards have a TEA5767 for FM\n");
 503                 return 0;
 504         case TUNER_PHILIPS_FM1216ME_MK3:
 505         case TUNER_PHILIPS_FM1236_MK3:
 506         case TUNER_PHILIPS_FMD1216ME_MK3:
 507         case TUNER_PHILIPS_FMD1216MEX_MK3:
 508         case TUNER_LG_NTSC_TAPE:
 509         case TUNER_PHILIPS_FM1256_IH3:
 510         case TUNER_TCL_MF02GIP_5N:
 511                 buffer[3] = 0x19;
 512                 break;
 513         case TUNER_PHILIPS_FM1216MK5:
 514                 buffer[2] = 0x88;
 515                 buffer[3] = 0x09;
 516                 break;
 517         case TUNER_TNF_5335MF:
 518                 buffer[3] = 0x11;
 519                 break;
 520         case TUNER_LG_PAL_FM:
 521                 buffer[3] = 0xa5;
 522                 break;
 523         case TUNER_THOMSON_DTT761X:
 524                 buffer[3] = 0x39;
 525                 break;
 526         case TUNER_PHILIPS_FQ1216LME_MK3:
 527         case TUNER_PHILIPS_FQ1236_MK5:
 528                 tuner_err("This tuner doesn't have FM\n");
 529                 /* Set the low band for sanity, since it covers 88-108 MHz */
 530                 buffer[3] = 0x01;
 531                 break;
 532         case TUNER_MICROTUNE_4049FM5:
 533         default:
 534                 buffer[3] = 0xa4;
 535                 break;
 536         }
 537
 538         return 0;
 539 }
 540
 541 /* ---------------------------------------------------------------------- */
 542
 543 static int simple_set_tv_freq(struct dvb_frontend *fe,
 544                               struct analog_parameters *params)
 545 {
 546         struct tuner_simple_priv *priv = fe->tuner_priv;
 547         u8 config, cb;
 548         u16 div;
 549         u8 buffer[4];
 550         int rc, IFPCoff, i;
 551         enum param_type desired_type;
 552         struct tuner_params *t_params;
 553
 554         /* IFPCoff = Video Intermediate Frequency - Vif:
 555                 940  =16*58.75  NTSC/J (Japan)
 556                 732  =16*45.75  M/N STD
 557                 704  =16*44     ATSC (at DVB code)
 558                 632  =16*39.50  I U.K.
 559                 622.4=16*38.90  B/G D/K I, L STD
 560                 592  =16*37.00  D China
 561                 590  =16.36.875 B Australia
 562                 543.2=16*33.95  L' STD
 563                 171.2=16*10.70  FM Radio (at set_radio_freq)
 564         */
 565
 566         if (params->std == V4L2_STD_NTSC_M_JP) {
 567                 IFPCoff      = 940;
 568                 desired_type = TUNER_PARAM_TYPE_NTSC;
 569         } else if ((params->std & V4L2_STD_MN) &&
 570                   !(params->std & ~V4L2_STD_MN)) {
 571                 IFPCoff      = 732;
 572                 desired_type = TUNER_PARAM_TYPE_NTSC;
 573         } else if (params->std == V4L2_STD_SECAM_LC) {
 574                 IFPCoff      = 543;
 575                 desired_type = TUNER_PARAM_TYPE_SECAM;
 576         } else {
 577                 IFPCoff      = 623;
 578                 desired_type = TUNER_PARAM_TYPE_PAL;
 579         }
 580
 581         t_params = simple_tuner_params(fe, desired_type);
 582
 583         i = simple_config_lookup(fe, t_params, &params->frequency,
 584                                  &config, &cb);
 585
 586         div = params->frequency + IFPCoff + offset;
 587
 588         tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n",
 589                   params->frequency / 16, params->frequency % 16 * 100 / 16,
 590                   IFPCoff / 16, IFPCoff % 16 * 100 / 16,
 591                   offset / 16, offset % 16 * 100 / 16, div);
 592
 593         /* tv norm specific stuff for multi-norm tuners */
 594         simple_std_setup(fe, params, &config, &cb);
 595
 596         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 597                 buffer[0] = config;
 598                 buffer[1] = cb;
 599                 buffer[2] = (div>>8) & 0x7f;
 600                 buffer[3] = div      & 0xff;
 601         } else {
 602                 buffer[0] = (div>>8) & 0x7f;
 603                 buffer[1] = div      & 0xff;
 604                 buffer[2] = config;
 605                 buffer[3] = cb;
 606         }
 607         priv->last_div = div;
 608         if (t_params->has_tda9887) {
 609                 struct v4l2_priv_tun_config tda9887_cfg;
 610                 int tda_config = 0;
 611                 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
 612                                                  V4L2_STD_SECAM_LC)) &&
 613                         !(params->std & ~(V4L2_STD_SECAM_L |
 614                                           V4L2_STD_SECAM_LC));
 615
 616                 tda9887_cfg.tuner = TUNER_TDA9887;
 617                 tda9887_cfg.priv  = &tda_config;
 618
 619                 if (params->std == V4L2_STD_SECAM_LC) {
 620                         if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
 621                                 tda_config |= TDA9887_PORT1_ACTIVE;
 622                         if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
 623                                 tda_config |= TDA9887_PORT2_ACTIVE;
 624                 } else {
 625                         if (t_params->port1_active)
 626                                 tda_config |= TDA9887_PORT1_ACTIVE;
 627                         if (t_params->port2_active)
 628                                 tda_config |= TDA9887_PORT2_ACTIVE;
 629                 }
 630                 if (t_params->intercarrier_mode)
 631                         tda_config |= TDA9887_INTERCARRIER;
 632                 if (is_secam_l) {
 633                         if (i == 0 && t_params->default_top_secam_low)
 634                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
 635                         else if (i == 1 && t_params->default_top_secam_mid)
 636                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
 637                         else if (t_params->default_top_secam_high)
 638                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
 639                 } else {
 640                         if (i == 0 && t_params->default_top_low)
 641                                 tda_config |= TDA9887_TOP(t_params->default_top_low);
 642                         else if (i == 1 && t_params->default_top_mid)
 643                                 tda_config |= TDA9887_TOP(t_params->default_top_mid);
 644                         else if (t_params->default_top_high)
 645                                 tda_config |= TDA9887_TOP(t_params->default_top_high);
 646                 }
 647                 if (t_params->default_pll_gating_18)
 648                         tda_config |= TDA9887_GATING_18;
 649                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 650                                     &tda9887_cfg);
 651         }
 652         tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 653                   buffer[0], buffer[1], buffer[2], buffer[3]);
 654
 655         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 656         if (4 != rc)
 657                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 658
 659         simple_post_tune(fe, &buffer[0], div, config, cb);
 660
 661         return 0;
 662 }
 663
 664 static int simple_set_radio_freq(struct dvb_frontend *fe,
 665                                  struct analog_parameters *params)
 666 {
 667         struct tunertype *tun;
 668         struct tuner_simple_priv *priv = fe->tuner_priv;
 669         u8 buffer[4];
 670         u16 div;
 671         int rc, j;
 672         struct tuner_params *t_params;
 673         unsigned int freq = params->frequency;
 674         bool mono = params->audmode == V4L2_TUNER_MODE_MONO;
 675
 676         tun = priv->tun;
 677
 678         for (j = tun->count-1; j > 0; j--)
 679                 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
 680                         break;
 681         /* default t_params (j=0) will be used if desired type wasn't found */
 682         t_params = &tun->params[j];
 683
 684         /* Select Radio 1st IF used */
 685         switch (t_params->radio_if) {
 686         case 0: /* 10.7 MHz */
 687                 freq += (unsigned int)(10.7*16000);
 688                 break;
 689         case 1: /* 33.3 MHz */
 690                 freq += (unsigned int)(33.3*16000);
 691                 break;
 692         case 2: /* 41.3 MHz */
 693                 freq += (unsigned int)(41.3*16000);
 694                 break;
 695         default:
 696                 tuner_warn("Unsupported radio_if value %d\n",
 697                            t_params->radio_if);
 698                 return 0;
 699         }
 700
 701         buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
 702                     TUNER_RATIO_SELECT_50; /* 50 kHz step */
 703
 704         /* Bandswitch byte */
 705         simple_radio_bandswitch(fe, &buffer[0]);
 706
 707         /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
 708            freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
 709            freq * (1/800) */
 710         div = (freq + 400) / 800;
 711
 712         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 713                 buffer[0] = buffer[2];
 714                 buffer[1] = buffer[3];
 715                 buffer[2] = (div>>8) & 0x7f;
 716                 buffer[3] = div      & 0xff;
 717         } else {
 718                 buffer[0] = (div>>8) & 0x7f;
 719                 buffer[1] = div      & 0xff;
 720         }
 721
 722         tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
 723                buffer[0], buffer[1], buffer[2], buffer[3]);
 724         priv->last_div = div;
 725
 726         if (t_params->has_tda9887) {
 727                 int config = 0;
 728                 struct v4l2_priv_tun_config tda9887_cfg;
 729
 730                 tda9887_cfg.tuner = TUNER_TDA9887;
 731                 tda9887_cfg.priv = &config;
 732
 733                 if (t_params->port1_active &&
 734                     !t_params->port1_fm_high_sensitivity)
 735                         config |= TDA9887_PORT1_ACTIVE;
 736                 if (t_params->port2_active &&
 737                     !t_params->port2_fm_high_sensitivity)
 738                         config |= TDA9887_PORT2_ACTIVE;
 739                 if (t_params->intercarrier_mode)
 740                         config |= TDA9887_INTERCARRIER;
 741                 if (t_params->port1_set_for_fm_mono && mono)
 742                         config &= ~TDA9887_PORT1_ACTIVE;
 743                 if (t_params->fm_gain_normal)
 744                         config |= TDA9887_GAIN_NORMAL;
 745                 if (t_params->radio_if == 2)
 746                         config |= TDA9887_RIF_41_3;
 747                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 748                                     &tda9887_cfg);
 749         }
 750         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 751         if (4 != rc)
 752                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 753
 754         /* Write AUX byte */
 755         switch (priv->type) {
 756         case TUNER_PHILIPS_FM1216ME_MK3:
 757                 buffer[2] = 0x98;
 758                 buffer[3] = 0x20; /* set TOP AGC */
 759                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 760                 if (4 != rc)
 761                         tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 762                 break;
 763         }
 764
 765         return 0;
 766 }
 767
 768 static int simple_set_params(struct dvb_frontend *fe,
 769                              struct analog_parameters *params)
 770 {
 771         struct tuner_simple_priv *priv = fe->tuner_priv;
 772         int ret = -EINVAL;
 773
 774         if (priv->i2c_props.adap == NULL)
 775                 return -EINVAL;
 776
 777         switch (params->mode) {
 778         case V4L2_TUNER_RADIO:
 779                 priv->radio_mode = true;
 780                 ret = simple_set_radio_freq(fe, params);
 781                 priv->frequency = params->frequency * 125 / 2;
 782                 break;
 783         case V4L2_TUNER_ANALOG_TV:
 784         case V4L2_TUNER_DIGITAL_TV:
 785                 priv->radio_mode = false;
 786                 ret = simple_set_tv_freq(fe, params);
 787                 priv->frequency = params->frequency * 62500;
 788                 break;
 789         }
 790         priv->bandwidth = 0;
 791
 792         return ret;
 793 }
 794
 795 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
 796                            const u32 delsys,
 797                            const u32 frequency,
 798                            const u32 bandwidth)
 799 {
 800         struct tuner_simple_priv *priv = fe->tuner_priv;
 801
 802         switch (priv->type) {
 803         case TUNER_PHILIPS_FMD1216ME_MK3:
 804         case TUNER_PHILIPS_FMD1216MEX_MK3:
 805                 if (bandwidth == 8000000 &&
 806                     frequency >= 158870000)
 807                         buf[3] |= 0x08;
 808                 break;
 809         case TUNER_PHILIPS_TD1316:
 810                 /* determine band */
 811                 buf[3] |= (frequency < 161000000) ? 1 :
 812                           (frequency < 444000000) ? 2 : 4;
 813
 814                 /* setup PLL filter */
 815                 if (bandwidth == 8000000)
 816                         buf[3] |= 1 << 3;
 817                 break;
 818         case TUNER_PHILIPS_TUV1236D:
 819         case TUNER_PHILIPS_FCV1236D:
 820         {
 821                 unsigned int new_rf;
 822
 823                 if (dtv_input[priv->nr])
 824                         new_rf = dtv_input[priv->nr];
 825                 else
 826                         switch (delsys) {
 827                         case SYS_DVBC_ANNEX_B:
 828                                 new_rf = 1;
 829                                 break;
 830                         case SYS_ATSC:
 831                         default:
 832                                 new_rf = 0;
 833                                 break;
 834                         }
 835                 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
 836                 break;
 837         }
 838         default:
 839                 break;
 840         }
 841 }
 842
 843 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
 844                                 const u32 delsys,
 845                                 const u32 freq,
 846                                 const u32 bw)
 847 {
 848         /* This function returns the tuned frequency on success, 0 on error */
 849         struct tuner_simple_priv *priv = fe->tuner_priv;
 850         struct tunertype *tun = priv->tun;
 851         struct tuner_params *t_params;
 852         u8 config, cb;
 853         u32 div;
 854         int ret;
 855         u32 frequency = freq / 62500;
 856
 857         if (!tun->stepsize) {
 858                 /* tuner-core was loaded before the digital tuner was
 859                  * configured and somehow picked the wrong tuner type */
 860                 tuner_err("attempt to treat tuner %d (%s) as digital tuner without stepsize defined.\n",
 861                           priv->type, priv->tun->name);
 862                 return 0; /* failure */
 863         }
 864
 865         t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
 866         ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
 867         if (ret < 0)
 868                 return 0; /* failure */
 869
 870         div = ((frequency + t_params->iffreq) * 62500 + offset +
 871                tun->stepsize/2) / tun->stepsize;
 872
 873         buf[0] = div >> 8;
 874         buf[1] = div & 0xff;
 875         buf[2] = config;
 876         buf[3] = cb;
 877
 878         simple_set_dvb(fe, buf, delsys, freq, bw);
 879
 880         tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 881                   tun->name, div, buf[0], buf[1], buf[2], buf[3]);
 882
 883         /* calculate the frequency we set it to */
 884         return (div * tun->stepsize) - t_params->iffreq;
 885 }
 886
 887 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
 888                                 u8 *buf, int buf_len)
 889 {
 890         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 891         u32 delsys = c->delivery_system;
 892         u32 bw = c->bandwidth_hz;
 893         struct tuner_simple_priv *priv = fe->tuner_priv;
 894         u32 frequency;
 895
 896         if (buf_len < 5)
 897                 return -EINVAL;
 898
 899         frequency = simple_dvb_configure(fe, buf+1, delsys, c->frequency, bw);
 900         if (frequency == 0)
 901                 return -EINVAL;
 902
 903         buf[0] = priv->i2c_props.addr;
 904
 905         priv->frequency = frequency;
 906         priv->bandwidth = c->bandwidth_hz;
 907
 908         return 5;
 909 }
 910
 911 static int simple_dvb_set_params(struct dvb_frontend *fe)
 912 {
 913         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 914         u32 delsys = c->delivery_system;
 915         u32 bw = c->bandwidth_hz;
 916         u32 freq = c->frequency;
 917         struct tuner_simple_priv *priv = fe->tuner_priv;
 918         u32 frequency;
 919         u32 prev_freq, prev_bw;
 920         int ret;
 921         u8 buf[5];
 922
 923         if (priv->i2c_props.adap == NULL)
 924                 return -EINVAL;
 925
 926         prev_freq = priv->frequency;
 927         prev_bw   = priv->bandwidth;
 928
 929         frequency = simple_dvb_configure(fe, buf+1, delsys, freq, bw);
 930         if (frequency == 0)
 931                 return -EINVAL;
 932
 933         buf[0] = priv->i2c_props.addr;
 934
 935         priv->frequency = frequency;
 936         priv->bandwidth = bw;
 937
 938         /* put analog demod in standby when tuning digital */
 939         if (fe->ops.analog_ops.standby)
 940                 fe->ops.analog_ops.standby(fe);
 941
 942         if (fe->ops.i2c_gate_ctrl)
 943                 fe->ops.i2c_gate_ctrl(fe, 1);
 944
 945         /* buf[0] contains the i2c address, but *
 946          * we already have it in i2c_props.addr */
 947         ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
 948         if (ret != 4)
 949                 goto fail;
 950
 951         return 0;
 952 fail:
 953         /* calc_regs sets frequency and bandwidth. if we failed, unset them */
 954         priv->frequency = prev_freq;
 955         priv->bandwidth = prev_bw;
 956
 957         return ret;
 958 }
 959
 960 static int simple_init(struct dvb_frontend *fe)
 961 {
 962         struct tuner_simple_priv *priv = fe->tuner_priv;
 963
 964         if (priv->i2c_props.adap == NULL)
 965                 return -EINVAL;
 966
 967         if (priv->tun->initdata) {
 968                 int ret;
 969
 970                 if (fe->ops.i2c_gate_ctrl)
 971                         fe->ops.i2c_gate_ctrl(fe, 1);
 972
 973                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 974                                           priv->tun->initdata + 1,
 975                                           priv->tun->initdata[0]);
 976                 if (ret != priv->tun->initdata[0])
 977                         return ret;
 978         }
 979
 980         return 0;
 981 }
 982
 983 static int simple_sleep(struct dvb_frontend *fe)
 984 {
 985         struct tuner_simple_priv *priv = fe->tuner_priv;
 986
 987         if (priv->i2c_props.adap == NULL)
 988                 return -EINVAL;
 989
 990         if (priv->tun->sleepdata) {
 991                 int ret;
 992
 993                 if (fe->ops.i2c_gate_ctrl)
 994                         fe->ops.i2c_gate_ctrl(fe, 1);
 995
 996                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 997                                           priv->tun->sleepdata + 1,
 998                                           priv->tun->sleepdata[0]);
 999                 if (ret != priv->tun->sleepdata[0])
1000                         return ret;
1001         }
1002
1003         return 0;
1004 }
1005
1006 static void simple_release(struct dvb_frontend *fe)
1007 {
1008         struct tuner_simple_priv *priv = fe->tuner_priv;
1009
1010         mutex_lock(&tuner_simple_list_mutex);
1011
1012         if (priv)
1013                 hybrid_tuner_release_state(priv);
1014
1015         mutex_unlock(&tuner_simple_list_mutex);
1016
1017         fe->tuner_priv = NULL;
1018 }
1019
1020 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1021 {
1022         struct tuner_simple_priv *priv = fe->tuner_priv;
1023         *frequency = priv->frequency;
1024         return 0;
1025 }
1026
1027 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1028 {
1029         struct tuner_simple_priv *priv = fe->tuner_priv;
1030         *bandwidth = priv->bandwidth;
1031         return 0;
1032 }
1033
1034 static const struct dvb_tuner_ops simple_tuner_ops = {
1035         .init              = simple_init,
1036         .sleep             = simple_sleep,
1037         .set_analog_params = simple_set_params,
1038         .set_params        = simple_dvb_set_params,
1039         .calc_regs         = simple_dvb_calc_regs,
1040         .release           = simple_release,
1041         .get_frequency     = simple_get_frequency,
1042         .get_bandwidth     = simple_get_bandwidth,
1043         .get_status        = simple_get_status,
1044         .get_rf_strength   = simple_get_rf_strength,
1045 };
1046
1047 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1048                                          struct i2c_adapter *i2c_adap,
1049                                          u8 i2c_addr,
1050                                          unsigned int type)
1051 {
1052         struct tuner_simple_priv *priv = NULL;
1053         int instance;
1054
1055         if (type >= tuner_count) {
1056                 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1057                        __func__, type, tuner_count-1);
1058                 return NULL;
1059         }
1060
1061         /* If i2c_adap is set, check that the tuner is at the correct address.
1062          * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1063          * by the digital demod via calc_regs.
1064          */
1065         if (i2c_adap != NULL) {
1066                 u8 b[1];
1067                 struct i2c_msg msg = {
1068                         .addr = i2c_addr, .flags = I2C_M_RD,
1069                         .buf = b, .len = 1,
1070                 };
1071
1072                 if (fe->ops.i2c_gate_ctrl)
1073                         fe->ops.i2c_gate_ctrl(fe, 1);
1074
1075                 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1076                         printk(KERN_WARNING "tuner-simple %d-%04x: unable to probe %s, proceeding anyway.",
1077                                i2c_adapter_id(i2c_adap), i2c_addr,
1078                                tuners[type].name);
1079
1080                 if (fe->ops.i2c_gate_ctrl)
1081                         fe->ops.i2c_gate_ctrl(fe, 0);
1082         }
1083
1084         mutex_lock(&tuner_simple_list_mutex);
1085
1086         instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1087                                               hybrid_tuner_instance_list,
1088                                               i2c_adap, i2c_addr,
1089                                               "tuner-simple");
1090         switch (instance) {
1091         case 0:
1092                 mutex_unlock(&tuner_simple_list_mutex);
1093                 return NULL;
1094         case 1:
1095                 fe->tuner_priv = priv;
1096
1097                 priv->type = type;
1098                 priv->tun  = &tuners[type];
1099                 priv->nr   = simple_devcount++;
1100                 break;
1101         default:
1102                 fe->tuner_priv = priv;
1103                 break;
1104         }
1105
1106         mutex_unlock(&tuner_simple_list_mutex);
1107
1108         memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1109                sizeof(struct dvb_tuner_ops));
1110
1111         if (type != priv->type)
1112                 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1113                             type, priv->type, priv->tun->name);
1114         else
1115                 tuner_info("type set to %d (%s)\n",
1116                            priv->type, priv->tun->name);
1117
1118         if ((debug) || ((atv_input[priv->nr] > 0) ||
1119                         (dtv_input[priv->nr] > 0))) {
1120                 if (0 == atv_input[priv->nr])
1121                         tuner_info("tuner %d atv rf input will be autoselected\n",
1122                                    priv->nr);
1123                 else
1124                         tuner_info("tuner %d atv rf input will be set to input %d (insmod option)\n",
1125                                    priv->nr, atv_input[priv->nr]);
1126                 if (0 == dtv_input[priv->nr])
1127                         tuner_info("tuner %d dtv rf input will be autoselected\n",
1128                                    priv->nr);
1129                 else
1130                         tuner_info("tuner %d dtv rf input will be set to input %d (insmod option)\n",
1131                                    priv->nr, dtv_input[priv->nr]);
1132         }
1133
1134         strscpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1135                 sizeof(fe->ops.tuner_ops.info.name));
1136
1137         return fe;
1138 }
1139 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1140
1141 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1142 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1143 MODULE_LICENSE("GPL");