kernel/drivers/media/tuners/tuner-simple.c

   1 /*
   2  * i2c tv tuner chip device driver
   3  * controls all those simple 4-control-bytes style tuners.
   4  *
   5  * This "tuner-simple" module was split apart from the original "tuner" module.
   6  */
   7 #include <linux/delay.h>
   8 #include <linux/i2c.h>
   9 #include <linux/videodev2.h>
  10 #include <media/tuner.h>
  11 #include <media/v4l2-common.h>
  12 #include <media/tuner-types.h>
  13 #include "tuner-i2c.h"
  14 #include "tuner-simple.h"
  15
  16 static int debug;
  17 module_param(debug, int, 0644);
  18 MODULE_PARM_DESC(debug, "enable verbose debug messages");
  19
  20 #define TUNER_SIMPLE_MAX 64
  21 static unsigned int simple_devcount;
  22
  23 static int offset;
  24 module_param(offset, int, 0664);
  25 MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");
  26
  27 static unsigned int atv_input[TUNER_SIMPLE_MAX] = \
  28                         { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
  29 static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \
  30                         { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
  31 module_param_array(atv_input, int, NULL, 0644);
  32 module_param_array(dtv_input, int, NULL, 0644);
  33 MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect");
  34 MODULE_PARM_DESC(dtv_input, "specify dtv rf input, 0 for autoselect");
  35
  36 /* ---------------------------------------------------------------------- */
  37
  38 /* tv standard selection for Temic 4046 FM5
  39    this value takes the low bits of control byte 2
  40    from datasheet Rev.01, Feb.00
  41      standard     BG      I       L       L2      D
  42      picture IF   38.9    38.9    38.9    33.95   38.9
  43      sound 1      33.4    32.9    32.4    40.45   32.4
  44      sound 2      33.16
  45      NICAM        33.05   32.348  33.05           33.05
  46  */
  47 #define TEMIC_SET_PAL_I         0x05
  48 #define TEMIC_SET_PAL_DK        0x09
  49 #define TEMIC_SET_PAL_L         0x0a /* SECAM ? */
  50 #define TEMIC_SET_PAL_L2        0x0b /* change IF ! */
  51 #define TEMIC_SET_PAL_BG        0x0c
  52
  53 /* tv tuner system standard selection for Philips FQ1216ME
  54    this value takes the low bits of control byte 2
  55    from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
  56      standard           BG      DK      I       L       L`
  57      picture carrier    38.90   38.90   38.90   38.90   33.95
  58      colour             34.47   34.47   34.47   34.47   38.38
  59      sound 1            33.40   32.40   32.90   32.40   40.45
  60      sound 2            33.16   -       -       -       -
  61      NICAM              33.05   33.05   32.35   33.05   39.80
  62  */
  63 #define PHILIPS_SET_PAL_I       0x01 /* Bit 2 always zero !*/
  64 #define PHILIPS_SET_PAL_BGDK    0x09
  65 #define PHILIPS_SET_PAL_L2      0x0a
  66 #define PHILIPS_SET_PAL_L       0x0b
  67
  68 /* system switching for Philips FI1216MF MK2
  69    from datasheet "1996 Jul 09",
  70     standard         BG     L      L'
  71     picture carrier  38.90  38.90  33.95
  72     colour           34.47  34.37  38.38
  73     sound 1          33.40  32.40  40.45
  74     sound 2          33.16  -      -
  75     NICAM            33.05  33.05  39.80
  76  */
  77 #define PHILIPS_MF_SET_STD_BG   0x01 /* Bit 2 must be zero, Bit 3 is system output */
  78 #define PHILIPS_MF_SET_STD_L    0x03 /* Used on Secam France */
  79 #define PHILIPS_MF_SET_STD_LC   0x02 /* Used on SECAM L' */
  80
  81 /* Control byte */
  82
  83 #define TUNER_RATIO_MASK        0x06 /* Bit cb1:cb2 */
  84 #define TUNER_RATIO_SELECT_50   0x00
  85 #define TUNER_RATIO_SELECT_32   0x02
  86 #define TUNER_RATIO_SELECT_166  0x04
  87 #define TUNER_RATIO_SELECT_62   0x06
  88
  89 #define TUNER_CHARGE_PUMP       0x40  /* Bit cb6 */
  90
  91 /* Status byte */
  92
  93 #define TUNER_POR         0x80
  94 #define TUNER_FL          0x40
  95 #define TUNER_MODE        0x38
  96 #define TUNER_AFC         0x07
  97 #define TUNER_SIGNAL      0x07
  98 #define TUNER_STEREO      0x10
  99
 100 #define TUNER_PLL_LOCKED   0x40
 101 #define TUNER_STEREO_MK3   0x04
 102
 103 static DEFINE_MUTEX(tuner_simple_list_mutex);
 104 static LIST_HEAD(hybrid_tuner_instance_list);
 105
 106 struct tuner_simple_priv {
 107         unsigned int nr;
 108         u16 last_div;
 109
 110         struct tuner_i2c_props i2c_props;
 111         struct list_head hybrid_tuner_instance_list;
 112
 113         unsigned int type;
 114         struct tunertype *tun;
 115
 116         u32 frequency;
 117         u32 bandwidth;
 118         bool radio_mode;
 119 };
 120
 121 /* ---------------------------------------------------------------------- */
 122
 123 static int tuner_read_status(struct dvb_frontend *fe)
 124 {
 125         struct tuner_simple_priv *priv = fe->tuner_priv;
 126         unsigned char byte;
 127
 128         if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))
 129                 return 0;
 130
 131         return byte;
 132 }
 133
 134 static inline int tuner_signal(const int status)
 135 {
 136         return (status & TUNER_SIGNAL) << 13;
 137 }
 138
 139 static inline int tuner_stereo(const int type, const int status)
 140 {
 141         switch (type) {
 142         case TUNER_PHILIPS_FM1216ME_MK3:
 143         case TUNER_PHILIPS_FM1236_MK3:
 144         case TUNER_PHILIPS_FM1256_IH3:
 145         case TUNER_LG_NTSC_TAPE:
 146         case TUNER_TCL_MF02GIP_5N:
 147                 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
 148         case TUNER_PHILIPS_FM1216MK5:
 149                 return status | TUNER_STEREO;
 150         default:
 151                 return status & TUNER_STEREO;
 152         }
 153 }
 154
 155 static inline int tuner_islocked(const int status)
 156 {
 157         return (status & TUNER_FL);
 158 }
 159
 160 static inline int tuner_afcstatus(const int status)
 161 {
 162         return (status & TUNER_AFC) - 2;
 163 }
 164
 165
 166 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
 167 {
 168         struct tuner_simple_priv *priv = fe->tuner_priv;
 169         int tuner_status;
 170
 171         if (priv->i2c_props.adap == NULL)
 172                 return -EINVAL;
 173
 174         tuner_status = tuner_read_status(fe);
 175
 176         *status = 0;
 177
 178         if (tuner_islocked(tuner_status))
 179                 *status = TUNER_STATUS_LOCKED;
 180         if (tuner_stereo(priv->type, tuner_status))
 181                 *status |= TUNER_STATUS_STEREO;
 182
 183         tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
 184
 185         return 0;
 186 }
 187
 188 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
 189 {
 190         struct tuner_simple_priv *priv = fe->tuner_priv;
 191         int signal;
 192
 193         if (priv->i2c_props.adap == NULL || !priv->radio_mode)
 194                 return -EINVAL;
 195
 196         signal = tuner_signal(tuner_read_status(fe));
 197
 198         *strength = signal;
 199
 200         tuner_dbg("Signal strength: %d\n", signal);
 201
 202         return 0;
 203 }
 204
 205 /* ---------------------------------------------------------------------- */
 206
 207 static inline char *tuner_param_name(enum param_type type)
 208 {
 209         char *name;
 210
 211         switch (type) {
 212         case TUNER_PARAM_TYPE_RADIO:
 213                 name = "radio";
 214                 break;
 215         case TUNER_PARAM_TYPE_PAL:
 216                 name = "pal";
 217                 break;
 218         case TUNER_PARAM_TYPE_SECAM:
 219                 name = "secam";
 220                 break;
 221         case TUNER_PARAM_TYPE_NTSC:
 222                 name = "ntsc";
 223                 break;
 224         case TUNER_PARAM_TYPE_DIGITAL:
 225                 name = "digital";
 226                 break;
 227         default:
 228                 name = "unknown";
 229                 break;
 230         }
 231         return name;
 232 }
 233
 234 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
 235                                                 enum param_type desired_type)
 236 {
 237         struct tuner_simple_priv *priv = fe->tuner_priv;
 238         struct tunertype *tun = priv->tun;
 239         int i;
 240
 241         for (i = 0; i < tun->count; i++)
 242                 if (desired_type == tun->params[i].type)
 243                         break;
 244
 245         /* use default tuner params if desired_type not available */
 246         if (i == tun->count) {
 247                 tuner_dbg("desired params (%s) undefined for tuner %d\n",
 248                           tuner_param_name(desired_type), priv->type);
 249                 i = 0;
 250         }
 251
 252         tuner_dbg("using tuner params #%d (%s)\n", i,
 253                   tuner_param_name(tun->params[i].type));
 254
 255         return &tun->params[i];
 256 }
 257
 258 static int simple_config_lookup(struct dvb_frontend *fe,
 259                                 struct tuner_params *t_params,
 260                                 unsigned *frequency, u8 *config, u8 *cb)
 261 {
 262         struct tuner_simple_priv *priv = fe->tuner_priv;
 263         int i;
 264
 265         for (i = 0; i < t_params->count; i++) {
 266                 if (*frequency > t_params->ranges[i].limit)
 267                         continue;
 268                 break;
 269         }
 270         if (i == t_params->count) {
 271                 tuner_dbg("frequency out of range (%d > %d)\n",
 272                           *frequency, t_params->ranges[i - 1].limit);
 273                 *frequency = t_params->ranges[--i].limit;
 274         }
 275         *config = t_params->ranges[i].config;
 276         *cb     = t_params->ranges[i].cb;
 277
 278         tuner_dbg("freq = %d.%02d (%d), range = %d, "
 279                   "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 "
 408                                    "(should be 2)\n", rc);
 409                 rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2);
 410                 if (2 != rc)
 411                         tuner_warn("i2c i/o error: rc == %d "
 412                                    "(should be 2)\n", 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 "
 467                                            "(should be 1)\n", 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 "
 487                                    "(should be 4)\n", 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. "
 503                           "Most cards have a TEA5767 for FM\n");
 504                 return 0;
 505         case TUNER_PHILIPS_FM1216ME_MK3:
 506         case TUNER_PHILIPS_FM1236_MK3:
 507         case TUNER_PHILIPS_FMD1216ME_MK3:
 508         case TUNER_PHILIPS_FMD1216MEX_MK3:
 509         case TUNER_LG_NTSC_TAPE:
 510         case TUNER_PHILIPS_FM1256_IH3:
 511         case TUNER_TCL_MF02GIP_5N:
 512                 buffer[3] = 0x19;
 513                 break;
 514         case TUNER_PHILIPS_FM1216MK5:
 515                 buffer[2] = 0x88;
 516                 buffer[3] = 0x09;
 517                 break;
 518         case TUNER_TNF_5335MF:
 519                 buffer[3] = 0x11;
 520                 break;
 521         case TUNER_LG_PAL_FM:
 522                 buffer[3] = 0xa5;
 523                 break;
 524         case TUNER_THOMSON_DTT761X:
 525                 buffer[3] = 0x39;
 526                 break;
 527         case TUNER_PHILIPS_FQ1216LME_MK3:
 528         case TUNER_PHILIPS_FQ1236_MK5:
 529                 tuner_err("This tuner doesn't have FM\n");
 530                 /* Set the low band for sanity, since it covers 88-108 MHz */
 531                 buffer[3] = 0x01;
 532                 break;
 533         case TUNER_MICROTUNE_4049FM5:
 534         default:
 535                 buffer[3] = 0xa4;
 536                 break;
 537         }
 538
 539         return 0;
 540 }
 541
 542 /* ---------------------------------------------------------------------- */
 543
 544 static int simple_set_tv_freq(struct dvb_frontend *fe,
 545                               struct analog_parameters *params)
 546 {
 547         struct tuner_simple_priv *priv = fe->tuner_priv;
 548         u8 config, cb;
 549         u16 div;
 550         u8 buffer[4];
 551         int rc, IFPCoff, i;
 552         enum param_type desired_type;
 553         struct tuner_params *t_params;
 554
 555         /* IFPCoff = Video Intermediate Frequency - Vif:
 556                 940  =16*58.75  NTSC/J (Japan)
 557                 732  =16*45.75  M/N STD
 558                 704  =16*44     ATSC (at DVB code)
 559                 632  =16*39.50  I U.K.
 560                 622.4=16*38.90  B/G D/K I, L STD
 561                 592  =16*37.00  D China
 562                 590  =16.36.875 B Australia
 563                 543.2=16*33.95  L' STD
 564                 171.2=16*10.70  FM Radio (at set_radio_freq)
 565         */
 566
 567         if (params->std == V4L2_STD_NTSC_M_JP) {
 568                 IFPCoff      = 940;
 569                 desired_type = TUNER_PARAM_TYPE_NTSC;
 570         } else if ((params->std & V4L2_STD_MN) &&
 571                   !(params->std & ~V4L2_STD_MN)) {
 572                 IFPCoff      = 732;
 573                 desired_type = TUNER_PARAM_TYPE_NTSC;
 574         } else if (params->std == V4L2_STD_SECAM_LC) {
 575                 IFPCoff      = 543;
 576                 desired_type = TUNER_PARAM_TYPE_SECAM;
 577         } else {
 578                 IFPCoff      = 623;
 579                 desired_type = TUNER_PARAM_TYPE_PAL;
 580         }
 581
 582         t_params = simple_tuner_params(fe, desired_type);
 583
 584         i = simple_config_lookup(fe, t_params, &params->frequency,
 585                                  &config, &cb);
 586
 587         div = params->frequency + IFPCoff + offset;
 588
 589         tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
 590                   "Offset=%d.%02d MHz, div=%0d\n",
 591                   params->frequency / 16, params->frequency % 16 * 100 / 16,
 592                   IFPCoff / 16, IFPCoff % 16 * 100 / 16,
 593                   offset / 16, offset % 16 * 100 / 16, div);
 594
 595         /* tv norm specific stuff for multi-norm tuners */
 596         simple_std_setup(fe, params, &config, &cb);
 597
 598         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 599                 buffer[0] = config;
 600                 buffer[1] = cb;
 601                 buffer[2] = (div>>8) & 0x7f;
 602                 buffer[3] = div      & 0xff;
 603         } else {
 604                 buffer[0] = (div>>8) & 0x7f;
 605                 buffer[1] = div      & 0xff;
 606                 buffer[2] = config;
 607                 buffer[3] = cb;
 608         }
 609         priv->last_div = div;
 610         if (t_params->has_tda9887) {
 611                 struct v4l2_priv_tun_config tda9887_cfg;
 612                 int tda_config = 0;
 613                 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
 614                                                  V4L2_STD_SECAM_LC)) &&
 615                         !(params->std & ~(V4L2_STD_SECAM_L |
 616                                           V4L2_STD_SECAM_LC));
 617
 618                 tda9887_cfg.tuner = TUNER_TDA9887;
 619                 tda9887_cfg.priv  = &tda_config;
 620
 621                 if (params->std == V4L2_STD_SECAM_LC) {
 622                         if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
 623                                 tda_config |= TDA9887_PORT1_ACTIVE;
 624                         if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
 625                                 tda_config |= TDA9887_PORT2_ACTIVE;
 626                 } else {
 627                         if (t_params->port1_active)
 628                                 tda_config |= TDA9887_PORT1_ACTIVE;
 629                         if (t_params->port2_active)
 630                                 tda_config |= TDA9887_PORT2_ACTIVE;
 631                 }
 632                 if (t_params->intercarrier_mode)
 633                         tda_config |= TDA9887_INTERCARRIER;
 634                 if (is_secam_l) {
 635                         if (i == 0 && t_params->default_top_secam_low)
 636                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
 637                         else if (i == 1 && t_params->default_top_secam_mid)
 638                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
 639                         else if (t_params->default_top_secam_high)
 640                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
 641                 } else {
 642                         if (i == 0 && t_params->default_top_low)
 643                                 tda_config |= TDA9887_TOP(t_params->default_top_low);
 644                         else if (i == 1 && t_params->default_top_mid)
 645                                 tda_config |= TDA9887_TOP(t_params->default_top_mid);
 646                         else if (t_params->default_top_high)
 647                                 tda_config |= TDA9887_TOP(t_params->default_top_high);
 648                 }
 649                 if (t_params->default_pll_gating_18)
 650                         tda_config |= TDA9887_GATING_18;
 651                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 652                                     &tda9887_cfg);
 653         }
 654         tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 655                   buffer[0], buffer[1], buffer[2], buffer[3]);
 656
 657         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 658         if (4 != rc)
 659                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 660
 661         simple_post_tune(fe, &buffer[0], div, config, cb);
 662
 663         return 0;
 664 }
 665
 666 static int simple_set_radio_freq(struct dvb_frontend *fe,
 667                                  struct analog_parameters *params)
 668 {
 669         struct tunertype *tun;
 670         struct tuner_simple_priv *priv = fe->tuner_priv;
 671         u8 buffer[4];
 672         u16 div;
 673         int rc, j;
 674         struct tuner_params *t_params;
 675         unsigned int freq = params->frequency;
 676
 677         tun = priv->tun;
 678
 679         for (j = tun->count-1; j > 0; j--)
 680                 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
 681                         break;
 682         /* default t_params (j=0) will be used if desired type wasn't found */
 683         t_params = &tun->params[j];
 684
 685         /* Select Radio 1st IF used */
 686         switch (t_params->radio_if) {
 687         case 0: /* 10.7 MHz */
 688                 freq += (unsigned int)(10.7*16000);
 689                 break;
 690         case 1: /* 33.3 MHz */
 691                 freq += (unsigned int)(33.3*16000);
 692                 break;
 693         case 2: /* 41.3 MHz */
 694                 freq += (unsigned int)(41.3*16000);
 695                 break;
 696         default:
 697                 tuner_warn("Unsupported radio_if value %d\n",
 698                            t_params->radio_if);
 699                 return 0;
 700         }
 701
 702         buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
 703                     TUNER_RATIO_SELECT_50; /* 50 kHz step */
 704
 705         /* Bandswitch byte */
 706         simple_radio_bandswitch(fe, &buffer[0]);
 707
 708         /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
 709            freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
 710            freq * (1/800) */
 711         div = (freq + 400) / 800;
 712
 713         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 714                 buffer[0] = buffer[2];
 715                 buffer[1] = buffer[3];
 716                 buffer[2] = (div>>8) & 0x7f;
 717                 buffer[3] = div      & 0xff;
 718         } else {
 719                 buffer[0] = (div>>8) & 0x7f;
 720                 buffer[1] = div      & 0xff;
 721         }
 722
 723         tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
 724                buffer[0], buffer[1], buffer[2], buffer[3]);
 725         priv->last_div = div;
 726
 727         if (t_params->has_tda9887) {
 728                 int config = 0;
 729                 struct v4l2_priv_tun_config tda9887_cfg;
 730
 731                 tda9887_cfg.tuner = TUNER_TDA9887;
 732                 tda9887_cfg.priv = &config;
 733
 734                 if (t_params->port1_active &&
 735                     !t_params->port1_fm_high_sensitivity)
 736                         config |= TDA9887_PORT1_ACTIVE;
 737                 if (t_params->port2_active &&
 738                     !t_params->port2_fm_high_sensitivity)
 739                         config |= TDA9887_PORT2_ACTIVE;
 740                 if (t_params->intercarrier_mode)
 741                         config |= TDA9887_INTERCARRIER;
 742 /*              if (t_params->port1_set_for_fm_mono)
 743                         config &= ~TDA9887_PORT1_ACTIVE;*/
 744                 if (t_params->fm_gain_normal)
 745                         config |= TDA9887_GAIN_NORMAL;
 746                 if (t_params->radio_if == 2)
 747                         config |= TDA9887_RIF_41_3;
 748                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 749                                     &tda9887_cfg);
 750         }
 751         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 752         if (4 != rc)
 753                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 754
 755         /* Write AUX byte */
 756         switch (priv->type) {
 757         case TUNER_PHILIPS_FM1216ME_MK3:
 758                 buffer[2] = 0x98;
 759                 buffer[3] = 0x20; /* set TOP AGC */
 760                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 761                 if (4 != rc)
 762                         tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 763                 break;
 764         }
 765
 766         return 0;
 767 }
 768
 769 static int simple_set_params(struct dvb_frontend *fe,
 770                              struct analog_parameters *params)
 771 {
 772         struct tuner_simple_priv *priv = fe->tuner_priv;
 773         int ret = -EINVAL;
 774
 775         if (priv->i2c_props.adap == NULL)
 776                 return -EINVAL;
 777
 778         switch (params->mode) {
 779         case V4L2_TUNER_RADIO:
 780                 priv->radio_mode = true;
 781                 ret = simple_set_radio_freq(fe, params);
 782                 priv->frequency = params->frequency * 125 / 2;
 783                 break;
 784         case V4L2_TUNER_ANALOG_TV:
 785         case V4L2_TUNER_DIGITAL_TV:
 786                 priv->radio_mode = false;
 787                 ret = simple_set_tv_freq(fe, params);
 788                 priv->frequency = params->frequency * 62500;
 789                 break;
 790         }
 791         priv->bandwidth = 0;
 792
 793         return ret;
 794 }
 795
 796 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
 797                            const u32 delsys,
 798                            const u32 frequency,
 799                            const u32 bandwidth)
 800 {
 801         struct tuner_simple_priv *priv = fe->tuner_priv;
 802
 803         switch (priv->type) {
 804         case TUNER_PHILIPS_FMD1216ME_MK3:
 805         case TUNER_PHILIPS_FMD1216MEX_MK3:
 806                 if (bandwidth == 8000000 &&
 807                     frequency >= 158870000)
 808                         buf[3] |= 0x08;
 809                 break;
 810         case TUNER_PHILIPS_TD1316:
 811                 /* determine band */
 812                 buf[3] |= (frequency < 161000000) ? 1 :
 813                           (frequency < 444000000) ? 2 : 4;
 814
 815                 /* setup PLL filter */
 816                 if (bandwidth == 8000000)
 817                         buf[3] |= 1 << 3;
 818                 break;
 819         case TUNER_PHILIPS_TUV1236D:
 820         case TUNER_PHILIPS_FCV1236D:
 821         {
 822                 unsigned int new_rf;
 823
 824                 if (dtv_input[priv->nr])
 825                         new_rf = dtv_input[priv->nr];
 826                 else
 827                         switch (delsys) {
 828                         case SYS_DVBC_ANNEX_B:
 829                                 new_rf = 1;
 830                                 break;
 831                         case SYS_ATSC:
 832                         default:
 833                                 new_rf = 0;
 834                                 break;
 835                         }
 836                 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
 837                 break;
 838         }
 839         default:
 840                 break;
 841         }
 842 }
 843
 844 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
 845                                 const u32 delsys,
 846                                 const u32 freq,
 847                                 const u32 bw)
 848 {
 849         /* This function returns the tuned frequency on success, 0 on error */
 850         struct tuner_simple_priv *priv = fe->tuner_priv;
 851         struct tunertype *tun = priv->tun;
 852         static struct tuner_params *t_params;
 853         u8 config, cb;
 854         u32 div;
 855         int ret;
 856         u32 frequency = freq / 62500;
 857
 858         if (!tun->stepsize) {
 859                 /* tuner-core was loaded before the digital tuner was
 860                  * configured and somehow picked the wrong tuner type */
 861                 tuner_err("attempt to treat tuner %d (%s) as digital tuner "
 862                           "without stepsize defined.\n",
 863                           priv->type, priv->tun->name);
 864                 return 0; /* failure */
 865         }
 866
 867         t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
 868         ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
 869         if (ret < 0)
 870                 return 0; /* failure */
 871
 872         div = ((frequency + t_params->iffreq) * 62500 + offset +
 873                tun->stepsize/2) / tun->stepsize;
 874
 875         buf[0] = div >> 8;
 876         buf[1] = div & 0xff;
 877         buf[2] = config;
 878         buf[3] = cb;
 879
 880         simple_set_dvb(fe, buf, delsys, freq, bw);
 881
 882         tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 883                   tun->name, div, buf[0], buf[1], buf[2], buf[3]);
 884
 885         /* calculate the frequency we set it to */
 886         return (div * tun->stepsize) - t_params->iffreq;
 887 }
 888
 889 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
 890                                 u8 *buf, int buf_len)
 891 {
 892         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 893         u32 delsys = c->delivery_system;
 894         u32 bw = c->bandwidth_hz;
 895         struct tuner_simple_priv *priv = fe->tuner_priv;
 896         u32 frequency;
 897
 898         if (buf_len < 5)
 899                 return -EINVAL;
 900
 901         frequency = simple_dvb_configure(fe, buf+1, delsys, c->frequency, bw);
 902         if (frequency == 0)
 903                 return -EINVAL;
 904
 905         buf[0] = priv->i2c_props.addr;
 906
 907         priv->frequency = frequency;
 908         priv->bandwidth = c->bandwidth_hz;
 909
 910         return 5;
 911 }
 912
 913 static int simple_dvb_set_params(struct dvb_frontend *fe)
 914 {
 915         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 916         u32 delsys = c->delivery_system;
 917         u32 bw = c->bandwidth_hz;
 918         u32 freq = c->frequency;
 919         struct tuner_simple_priv *priv = fe->tuner_priv;
 920         u32 frequency;
 921         u32 prev_freq, prev_bw;
 922         int ret;
 923         u8 buf[5];
 924
 925         if (priv->i2c_props.adap == NULL)
 926                 return -EINVAL;
 927
 928         prev_freq = priv->frequency;
 929         prev_bw   = priv->bandwidth;
 930
 931         frequency = simple_dvb_configure(fe, buf+1, delsys, freq, bw);
 932         if (frequency == 0)
 933                 return -EINVAL;
 934
 935         buf[0] = priv->i2c_props.addr;
 936
 937         priv->frequency = frequency;
 938         priv->bandwidth = bw;
 939
 940         /* put analog demod in standby when tuning digital */
 941         if (fe->ops.analog_ops.standby)
 942                 fe->ops.analog_ops.standby(fe);
 943
 944         if (fe->ops.i2c_gate_ctrl)
 945                 fe->ops.i2c_gate_ctrl(fe, 1);
 946
 947         /* buf[0] contains the i2c address, but *
 948          * we already have it in i2c_props.addr */
 949         ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
 950         if (ret != 4)
 951                 goto fail;
 952
 953         return 0;
 954 fail:
 955         /* calc_regs sets frequency and bandwidth. if we failed, unset them */
 956         priv->frequency = prev_freq;
 957         priv->bandwidth = prev_bw;
 958
 959         return ret;
 960 }
 961
 962 static int simple_init(struct dvb_frontend *fe)
 963 {
 964         struct tuner_simple_priv *priv = fe->tuner_priv;
 965
 966         if (priv->i2c_props.adap == NULL)
 967                 return -EINVAL;
 968
 969         if (priv->tun->initdata) {
 970                 int ret;
 971
 972                 if (fe->ops.i2c_gate_ctrl)
 973                         fe->ops.i2c_gate_ctrl(fe, 1);
 974
 975                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 976                                           priv->tun->initdata + 1,
 977                                           priv->tun->initdata[0]);
 978                 if (ret != priv->tun->initdata[0])
 979                         return ret;
 980         }
 981
 982         return 0;
 983 }
 984
 985 static int simple_sleep(struct dvb_frontend *fe)
 986 {
 987         struct tuner_simple_priv *priv = fe->tuner_priv;
 988
 989         if (priv->i2c_props.adap == NULL)
 990                 return -EINVAL;
 991
 992         if (priv->tun->sleepdata) {
 993                 int ret;
 994
 995                 if (fe->ops.i2c_gate_ctrl)
 996                         fe->ops.i2c_gate_ctrl(fe, 1);
 997
 998                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 999                                           priv->tun->sleepdata + 1,
1000                                           priv->tun->sleepdata[0]);
1001                 if (ret != priv->tun->sleepdata[0])
1002                         return ret;
1003         }
1004
1005         return 0;
1006 }
1007
1008 static int simple_release(struct dvb_frontend *fe)
1009 {
1010         struct tuner_simple_priv *priv = fe->tuner_priv;
1011
1012         mutex_lock(&tuner_simple_list_mutex);
1013
1014         if (priv)
1015                 hybrid_tuner_release_state(priv);
1016
1017         mutex_unlock(&tuner_simple_list_mutex);
1018
1019         fe->tuner_priv = NULL;
1020
1021         return 0;
1022 }
1023
1024 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1025 {
1026         struct tuner_simple_priv *priv = fe->tuner_priv;
1027         *frequency = priv->frequency;
1028         return 0;
1029 }
1030
1031 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1032 {
1033         struct tuner_simple_priv *priv = fe->tuner_priv;
1034         *bandwidth = priv->bandwidth;
1035         return 0;
1036 }
1037
1038 static struct dvb_tuner_ops simple_tuner_ops = {
1039         .init              = simple_init,
1040         .sleep             = simple_sleep,
1041         .set_analog_params = simple_set_params,
1042         .set_params        = simple_dvb_set_params,
1043         .calc_regs         = simple_dvb_calc_regs,
1044         .release           = simple_release,
1045         .get_frequency     = simple_get_frequency,
1046         .get_bandwidth     = simple_get_bandwidth,
1047         .get_status        = simple_get_status,
1048         .get_rf_strength   = simple_get_rf_strength,
1049 };
1050
1051 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1052                                          struct i2c_adapter *i2c_adap,
1053                                          u8 i2c_addr,
1054                                          unsigned int type)
1055 {
1056         struct tuner_simple_priv *priv = NULL;
1057         int instance;
1058
1059         if (type >= tuner_count) {
1060                 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1061                        __func__, type, tuner_count-1);
1062                 return NULL;
1063         }
1064
1065         /* If i2c_adap is set, check that the tuner is at the correct address.
1066          * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1067          * by the digital demod via calc_regs.
1068          */
1069         if (i2c_adap != NULL) {
1070                 u8 b[1];
1071                 struct i2c_msg msg = {
1072                         .addr = i2c_addr, .flags = I2C_M_RD,
1073                         .buf = b, .len = 1,
1074                 };
1075
1076                 if (fe->ops.i2c_gate_ctrl)
1077                         fe->ops.i2c_gate_ctrl(fe, 1);
1078
1079                 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1080                         printk(KERN_WARNING "tuner-simple %d-%04x: "
1081                                "unable to probe %s, proceeding anyway.",
1082                                i2c_adapter_id(i2c_adap), i2c_addr,
1083                                tuners[type].name);
1084
1085                 if (fe->ops.i2c_gate_ctrl)
1086                         fe->ops.i2c_gate_ctrl(fe, 0);
1087         }
1088
1089         mutex_lock(&tuner_simple_list_mutex);
1090
1091         instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1092                                               hybrid_tuner_instance_list,
1093                                               i2c_adap, i2c_addr,
1094                                               "tuner-simple");
1095         switch (instance) {
1096         case 0:
1097                 mutex_unlock(&tuner_simple_list_mutex);
1098                 return NULL;
1099         case 1:
1100                 fe->tuner_priv = priv;
1101
1102                 priv->type = type;
1103                 priv->tun  = &tuners[type];
1104                 priv->nr   = simple_devcount++;
1105                 break;
1106         default:
1107                 fe->tuner_priv = priv;
1108                 break;
1109         }
1110
1111         mutex_unlock(&tuner_simple_list_mutex);
1112
1113         memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1114                sizeof(struct dvb_tuner_ops));
1115
1116         if (type != priv->type)
1117                 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1118                             type, priv->type, priv->tun->name);
1119         else
1120                 tuner_info("type set to %d (%s)\n",
1121                            priv->type, priv->tun->name);
1122
1123         if ((debug) || ((atv_input[priv->nr] > 0) ||
1124                         (dtv_input[priv->nr] > 0))) {
1125                 if (0 == atv_input[priv->nr])
1126                         tuner_info("tuner %d atv rf input will be "
1127                                    "autoselected\n", priv->nr);
1128                 else
1129                         tuner_info("tuner %d atv rf input will be "
1130                                    "set to input %d (insmod option)\n",
1131                                    priv->nr, atv_input[priv->nr]);
1132                 if (0 == dtv_input[priv->nr])
1133                         tuner_info("tuner %d dtv rf input will be "
1134                                    "autoselected\n", priv->nr);
1135                 else
1136                         tuner_info("tuner %d dtv rf input will be "
1137                                    "set to input %d (insmod option)\n",
1138                                    priv->nr, dtv_input[priv->nr]);
1139         }
1140
1141         strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1142                 sizeof(fe->ops.tuner_ops.info.name));
1143
1144         return fe;
1145 }
1146 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1147
1148 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1149 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1150 MODULE_LICENSE("GPL");