drivers/media/common/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 };
 119
 120 /* ---------------------------------------------------------------------- */
 121
 122 static int tuner_read_status(struct dvb_frontend *fe)
 123 {
 124         struct tuner_simple_priv *priv = fe->tuner_priv;
 125         unsigned char byte;
 126
 127         if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))
 128                 return 0;
 129
 130         return byte;
 131 }
 132
 133 static inline int tuner_signal(const int status)
 134 {
 135         return (status & TUNER_SIGNAL) << 13;
 136 }
 137
 138 static inline int tuner_stereo(const int type, const int status)
 139 {
 140         switch (type) {
 141         case TUNER_PHILIPS_FM1216ME_MK3:
 142         case TUNER_PHILIPS_FM1236_MK3:
 143         case TUNER_PHILIPS_FM1256_IH3:
 144         case TUNER_LG_NTSC_TAPE:
 145         case TUNER_TCL_MF02GIP_5N:
 146                 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
 147         case TUNER_PHILIPS_FM1216MK5:
 148                 return status | TUNER_STEREO;
 149         default:
 150                 return status & TUNER_STEREO;
 151         }
 152 }
 153
 154 static inline int tuner_islocked(const int status)
 155 {
 156         return (status & TUNER_FL);
 157 }
 158
 159 static inline int tuner_afcstatus(const int status)
 160 {
 161         return (status & TUNER_AFC) - 2;
 162 }
 163
 164
 165 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
 166 {
 167         struct tuner_simple_priv *priv = fe->tuner_priv;
 168         int tuner_status;
 169
 170         if (priv->i2c_props.adap == NULL)
 171                 return -EINVAL;
 172
 173         tuner_status = tuner_read_status(fe);
 174
 175         *status = 0;
 176
 177         if (tuner_islocked(tuner_status))
 178                 *status = TUNER_STATUS_LOCKED;
 179         if (tuner_stereo(priv->type, tuner_status))
 180                 *status |= TUNER_STATUS_STEREO;
 181
 182         tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
 183
 184         return 0;
 185 }
 186
 187 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
 188 {
 189         struct tuner_simple_priv *priv = fe->tuner_priv;
 190         int signal;
 191
 192         if (priv->i2c_props.adap == NULL)
 193                 return -EINVAL;
 194
 195         signal = tuner_signal(tuner_read_status(fe));
 196
 197         *strength = signal;
 198
 199         tuner_dbg("Signal strength: %d\n", signal);
 200
 201         return 0;
 202 }
 203
 204 /* ---------------------------------------------------------------------- */
 205
 206 static inline char *tuner_param_name(enum param_type type)
 207 {
 208         char *name;
 209
 210         switch (type) {
 211         case TUNER_PARAM_TYPE_RADIO:
 212                 name = "radio";
 213                 break;
 214         case TUNER_PARAM_TYPE_PAL:
 215                 name = "pal";
 216                 break;
 217         case TUNER_PARAM_TYPE_SECAM:
 218                 name = "secam";
 219                 break;
 220         case TUNER_PARAM_TYPE_NTSC:
 221                 name = "ntsc";
 222                 break;
 223         case TUNER_PARAM_TYPE_DIGITAL:
 224                 name = "digital";
 225                 break;
 226         default:
 227                 name = "unknown";
 228                 break;
 229         }
 230         return name;
 231 }
 232
 233 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
 234                                                 enum param_type desired_type)
 235 {
 236         struct tuner_simple_priv *priv = fe->tuner_priv;
 237         struct tunertype *tun = priv->tun;
 238         int i;
 239
 240         for (i = 0; i < tun->count; i++)
 241                 if (desired_type == tun->params[i].type)
 242                         break;
 243
 244         /* use default tuner params if desired_type not available */
 245         if (i == tun->count) {
 246                 tuner_dbg("desired params (%s) undefined for tuner %d\n",
 247                           tuner_param_name(desired_type), priv->type);
 248                 i = 0;
 249         }
 250
 251         tuner_dbg("using tuner params #%d (%s)\n", i,
 252                   tuner_param_name(tun->params[i].type));
 253
 254         return &tun->params[i];
 255 }
 256
 257 static int simple_config_lookup(struct dvb_frontend *fe,
 258                                 struct tuner_params *t_params,
 259                                 unsigned *frequency, u8 *config, u8 *cb)
 260 {
 261         struct tuner_simple_priv *priv = fe->tuner_priv;
 262         int i;
 263
 264         for (i = 0; i < t_params->count; i++) {
 265                 if (*frequency > t_params->ranges[i].limit)
 266                         continue;
 267                 break;
 268         }
 269         if (i == t_params->count) {
 270                 tuner_dbg("frequency out of range (%d > %d)\n",
 271                           *frequency, t_params->ranges[i - 1].limit);
 272                 *frequency = t_params->ranges[--i].limit;
 273         }
 274         *config = t_params->ranges[i].config;
 275         *cb     = t_params->ranges[i].cb;
 276
 277         tuner_dbg("freq = %d.%02d (%d), range = %d, "
 278                   "config = 0x%02x, cb = 0x%02x\n",
 279                   *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
 280                   i, *config, *cb);
 281
 282         return i;
 283 }
 284
 285 /* ---------------------------------------------------------------------- */
 286
 287 static void simple_set_rf_input(struct dvb_frontend *fe,
 288                                 u8 *config, u8 *cb, unsigned int rf)
 289 {
 290         struct tuner_simple_priv *priv = fe->tuner_priv;
 291
 292         switch (priv->type) {
 293         case TUNER_PHILIPS_TUV1236D:
 294                 switch (rf) {
 295                 case 1:
 296                         *cb |= 0x08;
 297                         break;
 298                 default:
 299                         *cb &= ~0x08;
 300                         break;
 301                 }
 302                 break;
 303         case TUNER_PHILIPS_FCV1236D:
 304                 switch (rf) {
 305                 case 1:
 306                         *cb |= 0x01;
 307                         break;
 308                 default:
 309                         *cb &= ~0x01;
 310                         break;
 311                 }
 312                 break;
 313         default:
 314                 break;
 315         }
 316 }
 317
 318 static int simple_std_setup(struct dvb_frontend *fe,
 319                             struct analog_parameters *params,
 320                             u8 *config, u8 *cb)
 321 {
 322         struct tuner_simple_priv *priv = fe->tuner_priv;
 323         int rc;
 324
 325         /* tv norm specific stuff for multi-norm tuners */
 326         switch (priv->type) {
 327         case TUNER_PHILIPS_SECAM: /* FI1216MF */
 328                 /* 0x01 -> ??? no change ??? */
 329                 /* 0x02 -> PAL BDGHI / SECAM L */
 330                 /* 0x04 -> ??? PAL others / SECAM others ??? */
 331                 *cb &= ~0x03;
 332                 if (params->std & V4L2_STD_SECAM_L)
 333                         /* also valid for V4L2_STD_SECAM */
 334                         *cb |= PHILIPS_MF_SET_STD_L;
 335                 else if (params->std & V4L2_STD_SECAM_LC)
 336                         *cb |= PHILIPS_MF_SET_STD_LC;
 337                 else /* V4L2_STD_B|V4L2_STD_GH */
 338                         *cb |= PHILIPS_MF_SET_STD_BG;
 339                 break;
 340
 341         case TUNER_TEMIC_4046FM5:
 342                 *cb &= ~0x0f;
 343
 344                 if (params->std & V4L2_STD_PAL_BG) {
 345                         *cb |= TEMIC_SET_PAL_BG;
 346
 347                 } else if (params->std & V4L2_STD_PAL_I) {
 348                         *cb |= TEMIC_SET_PAL_I;
 349
 350                 } else if (params->std & V4L2_STD_PAL_DK) {
 351                         *cb |= TEMIC_SET_PAL_DK;
 352
 353                 } else if (params->std & V4L2_STD_SECAM_L) {
 354                         *cb |= TEMIC_SET_PAL_L;
 355
 356                 }
 357                 break;
 358
 359         case TUNER_PHILIPS_FQ1216ME:
 360                 *cb &= ~0x0f;
 361
 362                 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
 363                         *cb |= PHILIPS_SET_PAL_BGDK;
 364
 365                 } else if (params->std & V4L2_STD_PAL_I) {
 366                         *cb |= PHILIPS_SET_PAL_I;
 367
 368                 } else if (params->std & V4L2_STD_SECAM_L) {
 369                         *cb |= PHILIPS_SET_PAL_L;
 370
 371                 }
 372                 break;
 373
 374         case TUNER_PHILIPS_FCV1236D:
 375                 /* 0x00 -> ATSC antenna input 1 */
 376                 /* 0x01 -> ATSC antenna input 2 */
 377                 /* 0x02 -> NTSC antenna input 1 */
 378                 /* 0x03 -> NTSC antenna input 2 */
 379                 *cb &= ~0x03;
 380                 if (!(params->std & V4L2_STD_ATSC))
 381                         *cb |= 2;
 382                 break;
 383
 384         case TUNER_MICROTUNE_4042FI5:
 385                 /* Set the charge pump for fast tuning */
 386                 *config |= TUNER_CHARGE_PUMP;
 387                 break;
 388
 389         case TUNER_PHILIPS_TUV1236D:
 390         {
 391                 struct tuner_i2c_props i2c = priv->i2c_props;
 392                 /* 0x40 -> ATSC antenna input 1 */
 393                 /* 0x48 -> ATSC antenna input 2 */
 394                 /* 0x00 -> NTSC antenna input 1 */
 395                 /* 0x08 -> NTSC antenna input 2 */
 396                 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
 397                 *cb &= ~0x40;
 398                 if (params->std & V4L2_STD_ATSC) {
 399                         *cb |= 0x40;
 400                         buffer[1] = 0x04;
 401                 }
 402                 /* set to the correct mode (analog or digital) */
 403                 i2c.addr = 0x0a;
 404                 rc = tuner_i2c_xfer_send(&i2c, &buffer[0], 2);
 405                 if (2 != rc)
 406                         tuner_warn("i2c i/o error: rc == %d "
 407                                    "(should be 2)\n", rc);
 408                 rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2);
 409                 if (2 != rc)
 410                         tuner_warn("i2c i/o error: rc == %d "
 411                                    "(should be 2)\n", rc);
 412                 break;
 413         }
 414         }
 415         if (atv_input[priv->nr])
 416                 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
 417
 418         return 0;
 419 }
 420
 421 static int simple_set_aux_byte(struct dvb_frontend *fe, u8 config, u8 aux)
 422 {
 423         struct tuner_simple_priv *priv = fe->tuner_priv;
 424         int rc;
 425         u8 buffer[2];
 426
 427         buffer[0] = (config & ~0x38) | 0x18;
 428         buffer[1] = aux;
 429
 430         tuner_dbg("setting aux byte: 0x%02x 0x%02x\n", buffer[0], buffer[1]);
 431
 432         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
 433         if (2 != rc)
 434                 tuner_warn("i2c i/o error: rc == %d (should be 2)\n", rc);
 435
 436         return rc == 2 ? 0 : rc;
 437 }
 438
 439 static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
 440                             u16 div, u8 config, u8 cb)
 441 {
 442         struct tuner_simple_priv *priv = fe->tuner_priv;
 443         int rc;
 444
 445         switch (priv->type) {
 446         case TUNER_LG_TDVS_H06XF:
 447                 simple_set_aux_byte(fe, config, 0x20);
 448                 break;
 449         case TUNER_PHILIPS_FQ1216LME_MK3:
 450                 simple_set_aux_byte(fe, config, 0x60); /* External AGC */
 451                 break;
 452         case TUNER_MICROTUNE_4042FI5:
 453         {
 454                 /* FIXME - this may also work for other tuners */
 455                 unsigned long timeout = jiffies + msecs_to_jiffies(1);
 456                 u8 status_byte = 0;
 457
 458                 /* Wait until the PLL locks */
 459                 for (;;) {
 460                         if (time_after(jiffies, timeout))
 461                                 return 0;
 462                         rc = tuner_i2c_xfer_recv(&priv->i2c_props,
 463                                                  &status_byte, 1);
 464                         if (1 != rc) {
 465                                 tuner_warn("i2c i/o read error: rc == %d "
 466                                            "(should be 1)\n", rc);
 467                                 break;
 468                         }
 469                         if (status_byte & TUNER_PLL_LOCKED)
 470                                 break;
 471                         udelay(10);
 472                 }
 473
 474                 /* Set the charge pump for optimized phase noise figure */
 475                 config &= ~TUNER_CHARGE_PUMP;
 476                 buffer[0] = (div>>8) & 0x7f;
 477                 buffer[1] = div      & 0xff;
 478                 buffer[2] = config;
 479                 buffer[3] = cb;
 480                 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 481                           buffer[0], buffer[1], buffer[2], buffer[3]);
 482
 483                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 484                 if (4 != rc)
 485                         tuner_warn("i2c i/o error: rc == %d "
 486                                    "(should be 4)\n", rc);
 487                 break;
 488         }
 489         }
 490
 491         return 0;
 492 }
 493
 494 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
 495 {
 496         struct tuner_simple_priv *priv = fe->tuner_priv;
 497
 498         switch (priv->type) {
 499         case TUNER_TENA_9533_DI:
 500         case TUNER_YMEC_TVF_5533MF:
 501                 tuner_dbg("This tuner doesn't have FM. "
 502                           "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, "
 589                   "Offset=%d.%02d MHz, div=%0d\n",
 590                   params->frequency / 16, params->frequency % 16 * 100 / 16,
 591                   IFPCoff / 16, IFPCoff % 16 * 100 / 16,
 592                   offset / 16, offset % 16 * 100 / 16, div);
 593
 594         /* tv norm specific stuff for multi-norm tuners */
 595         simple_std_setup(fe, params, &config, &cb);
 596
 597         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 598                 buffer[0] = config;
 599                 buffer[1] = cb;
 600                 buffer[2] = (div>>8) & 0x7f;
 601                 buffer[3] = div      & 0xff;
 602         } else {
 603                 buffer[0] = (div>>8) & 0x7f;
 604                 buffer[1] = div      & 0xff;
 605                 buffer[2] = config;
 606                 buffer[3] = cb;
 607         }
 608         priv->last_div = div;
 609         if (t_params->has_tda9887) {
 610                 struct v4l2_priv_tun_config tda9887_cfg;
 611                 int tda_config = 0;
 612                 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
 613                                                  V4L2_STD_SECAM_LC)) &&
 614                         !(params->std & ~(V4L2_STD_SECAM_L |
 615                                           V4L2_STD_SECAM_LC));
 616
 617                 tda9887_cfg.tuner = TUNER_TDA9887;
 618                 tda9887_cfg.priv  = &tda_config;
 619
 620                 if (params->std == V4L2_STD_SECAM_LC) {
 621                         if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
 622                                 tda_config |= TDA9887_PORT1_ACTIVE;
 623                         if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
 624                                 tda_config |= TDA9887_PORT2_ACTIVE;
 625                 } else {
 626                         if (t_params->port1_active)
 627                                 tda_config |= TDA9887_PORT1_ACTIVE;
 628                         if (t_params->port2_active)
 629                                 tda_config |= TDA9887_PORT2_ACTIVE;
 630                 }
 631                 if (t_params->intercarrier_mode)
 632                         tda_config |= TDA9887_INTERCARRIER;
 633                 if (is_secam_l) {
 634                         if (i == 0 && t_params->default_top_secam_low)
 635                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
 636                         else if (i == 1 && t_params->default_top_secam_mid)
 637                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
 638                         else if (t_params->default_top_secam_high)
 639                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
 640                 } else {
 641                         if (i == 0 && t_params->default_top_low)
 642                                 tda_config |= TDA9887_TOP(t_params->default_top_low);
 643                         else if (i == 1 && t_params->default_top_mid)
 644                                 tda_config |= TDA9887_TOP(t_params->default_top_mid);
 645                         else if (t_params->default_top_high)
 646                                 tda_config |= TDA9887_TOP(t_params->default_top_high);
 647                 }
 648                 if (t_params->default_pll_gating_18)
 649                         tda_config |= TDA9887_GATING_18;
 650                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 651                                     &tda9887_cfg);
 652         }
 653         tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 654                   buffer[0], buffer[1], buffer[2], buffer[3]);
 655
 656         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 657         if (4 != rc)
 658                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 659
 660         simple_post_tune(fe, &buffer[0], div, config, cb);
 661
 662         return 0;
 663 }
 664
 665 static int simple_set_radio_freq(struct dvb_frontend *fe,
 666                                  struct analog_parameters *params)
 667 {
 668         struct tunertype *tun;
 669         struct tuner_simple_priv *priv = fe->tuner_priv;
 670         u8 buffer[4];
 671         u16 div;
 672         int rc, j;
 673         struct tuner_params *t_params;
 674         unsigned int freq = params->frequency;
 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)
 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         return 0;
 755 }
 756
 757 static int simple_set_params(struct dvb_frontend *fe,
 758                              struct analog_parameters *params)
 759 {
 760         struct tuner_simple_priv *priv = fe->tuner_priv;
 761         int ret = -EINVAL;
 762
 763         if (priv->i2c_props.adap == NULL)
 764                 return -EINVAL;
 765
 766         switch (params->mode) {
 767         case V4L2_TUNER_RADIO:
 768                 ret = simple_set_radio_freq(fe, params);
 769                 priv->frequency = params->frequency * 125 / 2;
 770                 break;
 771         case V4L2_TUNER_ANALOG_TV:
 772         case V4L2_TUNER_DIGITAL_TV:
 773                 ret = simple_set_tv_freq(fe, params);
 774                 priv->frequency = params->frequency * 62500;
 775                 break;
 776         }
 777         priv->bandwidth = 0;
 778
 779         return ret;
 780 }
 781
 782 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
 783                            const struct dvb_frontend_parameters *params)
 784 {
 785         struct tuner_simple_priv *priv = fe->tuner_priv;
 786
 787         switch (priv->type) {
 788         case TUNER_PHILIPS_FMD1216ME_MK3:
 789         case TUNER_PHILIPS_FMD1216MEX_MK3:
 790                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
 791                     params->frequency >= 158870000)
 792                         buf[3] |= 0x08;
 793                 break;
 794         case TUNER_PHILIPS_TD1316:
 795                 /* determine band */
 796                 buf[3] |= (params->frequency < 161000000) ? 1 :
 797                           (params->frequency < 444000000) ? 2 : 4;
 798
 799                 /* setup PLL filter */
 800                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 801                         buf[3] |= 1 << 3;
 802                 break;
 803         case TUNER_PHILIPS_TUV1236D:
 804         case TUNER_PHILIPS_FCV1236D:
 805         {
 806                 unsigned int new_rf;
 807
 808                 if (dtv_input[priv->nr])
 809                         new_rf = dtv_input[priv->nr];
 810                 else
 811                         switch (params->u.vsb.modulation) {
 812                         case QAM_64:
 813                         case QAM_256:
 814                                 new_rf = 1;
 815                                 break;
 816                         case VSB_8:
 817                         default:
 818                                 new_rf = 0;
 819                                 break;
 820                         }
 821                 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
 822                 break;
 823         }
 824         default:
 825                 break;
 826         }
 827 }
 828
 829 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
 830                                 const struct dvb_frontend_parameters *params)
 831 {
 832         /* This function returns the tuned frequency on success, 0 on error */
 833         struct tuner_simple_priv *priv = fe->tuner_priv;
 834         struct tunertype *tun = priv->tun;
 835         static struct tuner_params *t_params;
 836         u8 config, cb;
 837         u32 div;
 838         int ret;
 839         unsigned frequency = params->frequency / 62500;
 840
 841         if (!tun->stepsize) {
 842                 /* tuner-core was loaded before the digital tuner was
 843                  * configured and somehow picked the wrong tuner type */
 844                 tuner_err("attempt to treat tuner %d (%s) as digital tuner "
 845                           "without stepsize defined.\n",
 846                           priv->type, priv->tun->name);
 847                 return 0; /* failure */
 848         }
 849
 850         t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
 851         ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
 852         if (ret < 0)
 853                 return 0; /* failure */
 854
 855         div = ((frequency + t_params->iffreq) * 62500 + offset +
 856                tun->stepsize/2) / tun->stepsize;
 857
 858         buf[0] = div >> 8;
 859         buf[1] = div & 0xff;
 860         buf[2] = config;
 861         buf[3] = cb;
 862
 863         simple_set_dvb(fe, buf, params);
 864
 865         tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 866                   tun->name, div, buf[0], buf[1], buf[2], buf[3]);
 867
 868         /* calculate the frequency we set it to */
 869         return (div * tun->stepsize) - t_params->iffreq;
 870 }
 871
 872 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
 873                                 struct dvb_frontend_parameters *params,
 874                                 u8 *buf, int buf_len)
 875 {
 876         struct tuner_simple_priv *priv = fe->tuner_priv;
 877         u32 frequency;
 878
 879         if (buf_len < 5)
 880                 return -EINVAL;
 881
 882         frequency = simple_dvb_configure(fe, buf+1, params);
 883         if (frequency == 0)
 884                 return -EINVAL;
 885
 886         buf[0] = priv->i2c_props.addr;
 887
 888         priv->frequency = frequency;
 889         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
 890                 params->u.ofdm.bandwidth : 0;
 891
 892         return 5;
 893 }
 894
 895 static int simple_dvb_set_params(struct dvb_frontend *fe,
 896                                  struct dvb_frontend_parameters *params)
 897 {
 898         struct tuner_simple_priv *priv = fe->tuner_priv;
 899         u32 prev_freq, prev_bw;
 900         int ret;
 901         u8 buf[5];
 902
 903         if (priv->i2c_props.adap == NULL)
 904                 return -EINVAL;
 905
 906         prev_freq = priv->frequency;
 907         prev_bw   = priv->bandwidth;
 908
 909         ret = simple_dvb_calc_regs(fe, params, buf, 5);
 910         if (ret != 5)
 911                 goto fail;
 912
 913         /* put analog demod in standby when tuning digital */
 914         if (fe->ops.analog_ops.standby)
 915                 fe->ops.analog_ops.standby(fe);
 916
 917         if (fe->ops.i2c_gate_ctrl)
 918                 fe->ops.i2c_gate_ctrl(fe, 1);
 919
 920         /* buf[0] contains the i2c address, but *
 921          * we already have it in i2c_props.addr */
 922         ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
 923         if (ret != 4)
 924                 goto fail;
 925
 926         return 0;
 927 fail:
 928         /* calc_regs sets frequency and bandwidth. if we failed, unset them */
 929         priv->frequency = prev_freq;
 930         priv->bandwidth = prev_bw;
 931
 932         return ret;
 933 }
 934
 935 static int simple_init(struct dvb_frontend *fe)
 936 {
 937         struct tuner_simple_priv *priv = fe->tuner_priv;
 938
 939         if (priv->i2c_props.adap == NULL)
 940                 return -EINVAL;
 941
 942         if (priv->tun->initdata) {
 943                 int ret;
 944
 945                 if (fe->ops.i2c_gate_ctrl)
 946                         fe->ops.i2c_gate_ctrl(fe, 1);
 947
 948                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 949                                           priv->tun->initdata + 1,
 950                                           priv->tun->initdata[0]);
 951                 if (ret != priv->tun->initdata[0])
 952                         return ret;
 953         }
 954
 955         return 0;
 956 }
 957
 958 static int simple_sleep(struct dvb_frontend *fe)
 959 {
 960         struct tuner_simple_priv *priv = fe->tuner_priv;
 961
 962         if (priv->i2c_props.adap == NULL)
 963                 return -EINVAL;
 964
 965         if (priv->tun->sleepdata) {
 966                 int ret;
 967
 968                 if (fe->ops.i2c_gate_ctrl)
 969                         fe->ops.i2c_gate_ctrl(fe, 1);
 970
 971                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 972                                           priv->tun->sleepdata + 1,
 973                                           priv->tun->sleepdata[0]);
 974                 if (ret != priv->tun->sleepdata[0])
 975                         return ret;
 976         }
 977
 978         return 0;
 979 }
 980
 981 static int simple_release(struct dvb_frontend *fe)
 982 {
 983         struct tuner_simple_priv *priv = fe->tuner_priv;
 984
 985         mutex_lock(&tuner_simple_list_mutex);
 986
 987         if (priv)
 988                 hybrid_tuner_release_state(priv);
 989
 990         mutex_unlock(&tuner_simple_list_mutex);
 991
 992         fe->tuner_priv = NULL;
 993
 994         return 0;
 995 }
 996
 997 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 998 {
 999         struct tuner_simple_priv *priv = fe->tuner_priv;
1000         *frequency = priv->frequency;
1001         return 0;
1002 }
1003
1004 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1005 {
1006         struct tuner_simple_priv *priv = fe->tuner_priv;
1007         *bandwidth = priv->bandwidth;
1008         return 0;
1009 }
1010
1011 static struct dvb_tuner_ops simple_tuner_ops = {
1012         .init              = simple_init,
1013         .sleep             = simple_sleep,
1014         .set_analog_params = simple_set_params,
1015         .set_params        = simple_dvb_set_params,
1016         .calc_regs         = simple_dvb_calc_regs,
1017         .release           = simple_release,
1018         .get_frequency     = simple_get_frequency,
1019         .get_bandwidth     = simple_get_bandwidth,
1020         .get_status        = simple_get_status,
1021         .get_rf_strength   = simple_get_rf_strength,
1022 };
1023
1024 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1025                                          struct i2c_adapter *i2c_adap,
1026                                          u8 i2c_addr,
1027                                          unsigned int type)
1028 {
1029         struct tuner_simple_priv *priv = NULL;
1030         int instance;
1031
1032         if (type >= tuner_count) {
1033                 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1034                        __func__, type, tuner_count-1);
1035                 return NULL;
1036         }
1037
1038         /* If i2c_adap is set, check that the tuner is at the correct address.
1039          * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1040          * by the digital demod via calc_regs.
1041          */
1042         if (i2c_adap != NULL) {
1043                 u8 b[1];
1044                 struct i2c_msg msg = {
1045                         .addr = i2c_addr, .flags = I2C_M_RD,
1046                         .buf = b, .len = 1,
1047                 };
1048
1049                 if (fe->ops.i2c_gate_ctrl)
1050                         fe->ops.i2c_gate_ctrl(fe, 1);
1051
1052                 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1053                         printk(KERN_WARNING "tuner-simple %d-%04x: "
1054                                "unable to probe %s, proceeding anyway.",
1055                                i2c_adapter_id(i2c_adap), i2c_addr,
1056                                tuners[type].name);
1057
1058                 if (fe->ops.i2c_gate_ctrl)
1059                         fe->ops.i2c_gate_ctrl(fe, 0);
1060         }
1061
1062         mutex_lock(&tuner_simple_list_mutex);
1063
1064         instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1065                                               hybrid_tuner_instance_list,
1066                                               i2c_adap, i2c_addr,
1067                                               "tuner-simple");
1068         switch (instance) {
1069         case 0:
1070                 mutex_unlock(&tuner_simple_list_mutex);
1071                 return NULL;
1072         case 1:
1073                 fe->tuner_priv = priv;
1074
1075                 priv->type = type;
1076                 priv->tun  = &tuners[type];
1077                 priv->nr   = simple_devcount++;
1078                 break;
1079         default:
1080                 fe->tuner_priv = priv;
1081                 break;
1082         }
1083
1084         mutex_unlock(&tuner_simple_list_mutex);
1085
1086         memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1087                sizeof(struct dvb_tuner_ops));
1088
1089         if (type != priv->type)
1090                 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1091                             type, priv->type, priv->tun->name);
1092         else
1093                 tuner_info("type set to %d (%s)\n",
1094                            priv->type, priv->tun->name);
1095
1096         if ((debug) || ((atv_input[priv->nr] > 0) ||
1097                         (dtv_input[priv->nr] > 0))) {
1098                 if (0 == atv_input[priv->nr])
1099                         tuner_info("tuner %d atv rf input will be "
1100                                    "autoselected\n", priv->nr);
1101                 else
1102                         tuner_info("tuner %d atv rf input will be "
1103                                    "set to input %d (insmod option)\n",
1104                                    priv->nr, atv_input[priv->nr]);
1105                 if (0 == dtv_input[priv->nr])
1106                         tuner_info("tuner %d dtv rf input will be "
1107                                    "autoselected\n", priv->nr);
1108                 else
1109                         tuner_info("tuner %d dtv rf input will be "
1110                                    "set to input %d (insmod option)\n",
1111                                    priv->nr, dtv_input[priv->nr]);
1112         }
1113
1114         strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1115                 sizeof(fe->ops.tuner_ops.info.name));
1116
1117         return fe;
1118 }
1119 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1120
1121 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1122 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1123 MODULE_LICENSE("GPL");
1124
1125 /*
1126  * Overrides for Emacs so that we follow Linus's tabbing style.
1127  * ---------------------------------------------------------------------------
1128  * Local variables:
1129  * c-basic-offset: 8
1130  * End:
1131  */