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                 tuner_err("This tuner doesn't have FM\n");
 528                 /* Set the low band for sanity, since it covers 88-108 MHz */
 529                 buffer[3] = 0x01;
 530                 break;
 531         case TUNER_MICROTUNE_4049FM5:
 532         default:
 533                 buffer[3] = 0xa4;
 534                 break;
 535         }
 536
 537         return 0;
 538 }
 539
 540 /* ---------------------------------------------------------------------- */
 541
 542 static int simple_set_tv_freq(struct dvb_frontend *fe,
 543                               struct analog_parameters *params)
 544 {
 545         struct tuner_simple_priv *priv = fe->tuner_priv;
 546         u8 config, cb;
 547         u16 div;
 548         struct tunertype *tun;
 549         u8 buffer[4];
 550         int rc, IFPCoff, i;
 551         enum param_type desired_type;
 552         struct tuner_params *t_params;
 553
 554         tun = priv->tun;
 555
 556         /* IFPCoff = Video Intermediate Frequency - Vif:
 557                 940  =16*58.75  NTSC/J (Japan)
 558                 732  =16*45.75  M/N STD
 559                 704  =16*44     ATSC (at DVB code)
 560                 632  =16*39.50  I U.K.
 561                 622.4=16*38.90  B/G D/K I, L STD
 562                 592  =16*37.00  D China
 563                 590  =16.36.875 B Australia
 564                 543.2=16*33.95  L' STD
 565                 171.2=16*10.70  FM Radio (at set_radio_freq)
 566         */
 567
 568         if (params->std == V4L2_STD_NTSC_M_JP) {
 569                 IFPCoff      = 940;
 570                 desired_type = TUNER_PARAM_TYPE_NTSC;
 571         } else if ((params->std & V4L2_STD_MN) &&
 572                   !(params->std & ~V4L2_STD_MN)) {
 573                 IFPCoff      = 732;
 574                 desired_type = TUNER_PARAM_TYPE_NTSC;
 575         } else if (params->std == V4L2_STD_SECAM_LC) {
 576                 IFPCoff      = 543;
 577                 desired_type = TUNER_PARAM_TYPE_SECAM;
 578         } else {
 579                 IFPCoff      = 623;
 580                 desired_type = TUNER_PARAM_TYPE_PAL;
 581         }
 582
 583         t_params = simple_tuner_params(fe, desired_type);
 584
 585         i = simple_config_lookup(fe, t_params, &params->frequency,
 586                                  &config, &cb);
 587
 588         div = params->frequency + IFPCoff + offset;
 589
 590         tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
 591                   "Offset=%d.%02d MHz, div=%0d\n",
 592                   params->frequency / 16, params->frequency % 16 * 100 / 16,
 593                   IFPCoff / 16, IFPCoff % 16 * 100 / 16,
 594                   offset / 16, offset % 16 * 100 / 16, div);
 595
 596         /* tv norm specific stuff for multi-norm tuners */
 597         simple_std_setup(fe, params, &config, &cb);
 598
 599         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 600                 buffer[0] = config;
 601                 buffer[1] = cb;
 602                 buffer[2] = (div>>8) & 0x7f;
 603                 buffer[3] = div      & 0xff;
 604         } else {
 605                 buffer[0] = (div>>8) & 0x7f;
 606                 buffer[1] = div      & 0xff;
 607                 buffer[2] = config;
 608                 buffer[3] = cb;
 609         }
 610         priv->last_div = div;
 611         if (t_params->has_tda9887) {
 612                 struct v4l2_priv_tun_config tda9887_cfg;
 613                 int tda_config = 0;
 614                 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
 615                                                  V4L2_STD_SECAM_LC)) &&
 616                         !(params->std & ~(V4L2_STD_SECAM_L |
 617                                           V4L2_STD_SECAM_LC));
 618
 619                 tda9887_cfg.tuner = TUNER_TDA9887;
 620                 tda9887_cfg.priv  = &tda_config;
 621
 622                 if (params->std == V4L2_STD_SECAM_LC) {
 623                         if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
 624                                 tda_config |= TDA9887_PORT1_ACTIVE;
 625                         if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
 626                                 tda_config |= TDA9887_PORT2_ACTIVE;
 627                 } else {
 628                         if (t_params->port1_active)
 629                                 tda_config |= TDA9887_PORT1_ACTIVE;
 630                         if (t_params->port2_active)
 631                                 tda_config |= TDA9887_PORT2_ACTIVE;
 632                 }
 633                 if (t_params->intercarrier_mode)
 634                         tda_config |= TDA9887_INTERCARRIER;
 635                 if (is_secam_l) {
 636                         if (i == 0 && t_params->default_top_secam_low)
 637                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
 638                         else if (i == 1 && t_params->default_top_secam_mid)
 639                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
 640                         else if (t_params->default_top_secam_high)
 641                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
 642                 } else {
 643                         if (i == 0 && t_params->default_top_low)
 644                                 tda_config |= TDA9887_TOP(t_params->default_top_low);
 645                         else if (i == 1 && t_params->default_top_mid)
 646                                 tda_config |= TDA9887_TOP(t_params->default_top_mid);
 647                         else if (t_params->default_top_high)
 648                                 tda_config |= TDA9887_TOP(t_params->default_top_high);
 649                 }
 650                 if (t_params->default_pll_gating_18)
 651                         tda_config |= TDA9887_GATING_18;
 652                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 653                                     &tda9887_cfg);
 654         }
 655         tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 656                   buffer[0], buffer[1], buffer[2], buffer[3]);
 657
 658         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 659         if (4 != rc)
 660                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 661
 662         simple_post_tune(fe, &buffer[0], div, config, cb);
 663
 664         return 0;
 665 }
 666
 667 static int simple_set_radio_freq(struct dvb_frontend *fe,
 668                                  struct analog_parameters *params)
 669 {
 670         struct tunertype *tun;
 671         struct tuner_simple_priv *priv = fe->tuner_priv;
 672         u8 buffer[4];
 673         u16 div;
 674         int rc, j;
 675         struct tuner_params *t_params;
 676         unsigned int freq = params->frequency;
 677
 678         tun = priv->tun;
 679
 680         for (j = tun->count-1; j > 0; j--)
 681                 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
 682                         break;
 683         /* default t_params (j=0) will be used if desired type wasn't found */
 684         t_params = &tun->params[j];
 685
 686         /* Select Radio 1st IF used */
 687         switch (t_params->radio_if) {
 688         case 0: /* 10.7 MHz */
 689                 freq += (unsigned int)(10.7*16000);
 690                 break;
 691         case 1: /* 33.3 MHz */
 692                 freq += (unsigned int)(33.3*16000);
 693                 break;
 694         case 2: /* 41.3 MHz */
 695                 freq += (unsigned int)(41.3*16000);
 696                 break;
 697         default:
 698                 tuner_warn("Unsupported radio_if value %d\n",
 699                            t_params->radio_if);
 700                 return 0;
 701         }
 702
 703         buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
 704                     TUNER_RATIO_SELECT_50; /* 50 kHz step */
 705
 706         /* Bandswitch byte */
 707         simple_radio_bandswitch(fe, &buffer[0]);
 708
 709         /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
 710            freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
 711            freq * (1/800) */
 712         div = (freq + 400) / 800;
 713
 714         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 715                 buffer[0] = buffer[2];
 716                 buffer[1] = buffer[3];
 717                 buffer[2] = (div>>8) & 0x7f;
 718                 buffer[3] = div      & 0xff;
 719         } else {
 720                 buffer[0] = (div>>8) & 0x7f;
 721                 buffer[1] = div      & 0xff;
 722         }
 723
 724         tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
 725                buffer[0], buffer[1], buffer[2], buffer[3]);
 726         priv->last_div = div;
 727
 728         if (t_params->has_tda9887) {
 729                 int config = 0;
 730                 struct v4l2_priv_tun_config tda9887_cfg;
 731
 732                 tda9887_cfg.tuner = TUNER_TDA9887;
 733                 tda9887_cfg.priv = &config;
 734
 735                 if (t_params->port1_active &&
 736                     !t_params->port1_fm_high_sensitivity)
 737                         config |= TDA9887_PORT1_ACTIVE;
 738                 if (t_params->port2_active &&
 739                     !t_params->port2_fm_high_sensitivity)
 740                         config |= TDA9887_PORT2_ACTIVE;
 741                 if (t_params->intercarrier_mode)
 742                         config |= TDA9887_INTERCARRIER;
 743 /*              if (t_params->port1_set_for_fm_mono)
 744                         config &= ~TDA9887_PORT1_ACTIVE;*/
 745                 if (t_params->fm_gain_normal)
 746                         config |= TDA9887_GAIN_NORMAL;
 747                 if (t_params->radio_if == 2)
 748                         config |= TDA9887_RIF_41_3;
 749                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 750                                     &tda9887_cfg);
 751         }
 752         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 753         if (4 != rc)
 754                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 755
 756         return 0;
 757 }
 758
 759 static int simple_set_params(struct dvb_frontend *fe,
 760                              struct analog_parameters *params)
 761 {
 762         struct tuner_simple_priv *priv = fe->tuner_priv;
 763         int ret = -EINVAL;
 764
 765         if (priv->i2c_props.adap == NULL)
 766                 return -EINVAL;
 767
 768         switch (params->mode) {
 769         case V4L2_TUNER_RADIO:
 770                 ret = simple_set_radio_freq(fe, params);
 771                 priv->frequency = params->frequency * 125 / 2;
 772                 break;
 773         case V4L2_TUNER_ANALOG_TV:
 774         case V4L2_TUNER_DIGITAL_TV:
 775                 ret = simple_set_tv_freq(fe, params);
 776                 priv->frequency = params->frequency * 62500;
 777                 break;
 778         }
 779         priv->bandwidth = 0;
 780
 781         return ret;
 782 }
 783
 784 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
 785                            const struct dvb_frontend_parameters *params)
 786 {
 787         struct tuner_simple_priv *priv = fe->tuner_priv;
 788
 789         switch (priv->type) {
 790         case TUNER_PHILIPS_FMD1216ME_MK3:
 791         case TUNER_PHILIPS_FMD1216MEX_MK3:
 792                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
 793                     params->frequency >= 158870000)
 794                         buf[3] |= 0x08;
 795                 break;
 796         case TUNER_PHILIPS_TD1316:
 797                 /* determine band */
 798                 buf[3] |= (params->frequency < 161000000) ? 1 :
 799                           (params->frequency < 444000000) ? 2 : 4;
 800
 801                 /* setup PLL filter */
 802                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 803                         buf[3] |= 1 << 3;
 804                 break;
 805         case TUNER_PHILIPS_TUV1236D:
 806         case TUNER_PHILIPS_FCV1236D:
 807         {
 808                 unsigned int new_rf;
 809
 810                 if (dtv_input[priv->nr])
 811                         new_rf = dtv_input[priv->nr];
 812                 else
 813                         switch (params->u.vsb.modulation) {
 814                         case QAM_64:
 815                         case QAM_256:
 816                                 new_rf = 1;
 817                                 break;
 818                         case VSB_8:
 819                         default:
 820                                 new_rf = 0;
 821                                 break;
 822                         }
 823                 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
 824                 break;
 825         }
 826         default:
 827                 break;
 828         }
 829 }
 830
 831 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
 832                                 const struct dvb_frontend_parameters *params)
 833 {
 834         /* This function returns the tuned frequency on success, 0 on error */
 835         struct tuner_simple_priv *priv = fe->tuner_priv;
 836         struct tunertype *tun = priv->tun;
 837         static struct tuner_params *t_params;
 838         u8 config, cb;
 839         u32 div;
 840         int ret;
 841         unsigned frequency = params->frequency / 62500;
 842
 843         if (!tun->stepsize) {
 844                 /* tuner-core was loaded before the digital tuner was
 845                  * configured and somehow picked the wrong tuner type */
 846                 tuner_err("attempt to treat tuner %d (%s) as digital tuner "
 847                           "without stepsize defined.\n",
 848                           priv->type, priv->tun->name);
 849                 return 0; /* failure */
 850         }
 851
 852         t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
 853         ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
 854         if (ret < 0)
 855                 return 0; /* failure */
 856
 857         div = ((frequency + t_params->iffreq) * 62500 + offset +
 858                tun->stepsize/2) / tun->stepsize;
 859
 860         buf[0] = div >> 8;
 861         buf[1] = div & 0xff;
 862         buf[2] = config;
 863         buf[3] = cb;
 864
 865         simple_set_dvb(fe, buf, params);
 866
 867         tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 868                   tun->name, div, buf[0], buf[1], buf[2], buf[3]);
 869
 870         /* calculate the frequency we set it to */
 871         return (div * tun->stepsize) - t_params->iffreq;
 872 }
 873
 874 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
 875                                 struct dvb_frontend_parameters *params,
 876                                 u8 *buf, int buf_len)
 877 {
 878         struct tuner_simple_priv *priv = fe->tuner_priv;
 879         u32 frequency;
 880
 881         if (buf_len < 5)
 882                 return -EINVAL;
 883
 884         frequency = simple_dvb_configure(fe, buf+1, params);
 885         if (frequency == 0)
 886                 return -EINVAL;
 887
 888         buf[0] = priv->i2c_props.addr;
 889
 890         priv->frequency = frequency;
 891         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
 892                 params->u.ofdm.bandwidth : 0;
 893
 894         return 5;
 895 }
 896
 897 static int simple_dvb_set_params(struct dvb_frontend *fe,
 898                                  struct dvb_frontend_parameters *params)
 899 {
 900         struct tuner_simple_priv *priv = fe->tuner_priv;
 901         u32 prev_freq, prev_bw;
 902         int ret;
 903         u8 buf[5];
 904
 905         if (priv->i2c_props.adap == NULL)
 906                 return -EINVAL;
 907
 908         prev_freq = priv->frequency;
 909         prev_bw   = priv->bandwidth;
 910
 911         ret = simple_dvb_calc_regs(fe, params, buf, 5);
 912         if (ret != 5)
 913                 goto fail;
 914
 915         /* put analog demod in standby when tuning digital */
 916         if (fe->ops.analog_ops.standby)
 917                 fe->ops.analog_ops.standby(fe);
 918
 919         if (fe->ops.i2c_gate_ctrl)
 920                 fe->ops.i2c_gate_ctrl(fe, 1);
 921
 922         /* buf[0] contains the i2c address, but *
 923          * we already have it in i2c_props.addr */
 924         ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
 925         if (ret != 4)
 926                 goto fail;
 927
 928         return 0;
 929 fail:
 930         /* calc_regs sets frequency and bandwidth. if we failed, unset them */
 931         priv->frequency = prev_freq;
 932         priv->bandwidth = prev_bw;
 933
 934         return ret;
 935 }
 936
 937 static int simple_init(struct dvb_frontend *fe)
 938 {
 939         struct tuner_simple_priv *priv = fe->tuner_priv;
 940
 941         if (priv->i2c_props.adap == NULL)
 942                 return -EINVAL;
 943
 944         if (priv->tun->initdata) {
 945                 int ret;
 946
 947                 if (fe->ops.i2c_gate_ctrl)
 948                         fe->ops.i2c_gate_ctrl(fe, 1);
 949
 950                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 951                                           priv->tun->initdata + 1,
 952                                           priv->tun->initdata[0]);
 953                 if (ret != priv->tun->initdata[0])
 954                         return ret;
 955         }
 956
 957         return 0;
 958 }
 959
 960 static int simple_sleep(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->sleepdata) {
 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->sleepdata + 1,
 975                                           priv->tun->sleepdata[0]);
 976                 if (ret != priv->tun->sleepdata[0])
 977                         return ret;
 978         }
 979
 980         return 0;
 981 }
 982
 983 static int simple_release(struct dvb_frontend *fe)
 984 {
 985         struct tuner_simple_priv *priv = fe->tuner_priv;
 986
 987         mutex_lock(&tuner_simple_list_mutex);
 988
 989         if (priv)
 990                 hybrid_tuner_release_state(priv);
 991
 992         mutex_unlock(&tuner_simple_list_mutex);
 993
 994         fe->tuner_priv = NULL;
 995
 996         return 0;
 997 }
 998
 999 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1000 {
1001         struct tuner_simple_priv *priv = fe->tuner_priv;
1002         *frequency = priv->frequency;
1003         return 0;
1004 }
1005
1006 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1007 {
1008         struct tuner_simple_priv *priv = fe->tuner_priv;
1009         *bandwidth = priv->bandwidth;
1010         return 0;
1011 }
1012
1013 static struct dvb_tuner_ops simple_tuner_ops = {
1014         .init              = simple_init,
1015         .sleep             = simple_sleep,
1016         .set_analog_params = simple_set_params,
1017         .set_params        = simple_dvb_set_params,
1018         .calc_regs         = simple_dvb_calc_regs,
1019         .release           = simple_release,
1020         .get_frequency     = simple_get_frequency,
1021         .get_bandwidth     = simple_get_bandwidth,
1022         .get_status        = simple_get_status,
1023         .get_rf_strength   = simple_get_rf_strength,
1024 };
1025
1026 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1027                                          struct i2c_adapter *i2c_adap,
1028                                          u8 i2c_addr,
1029                                          unsigned int type)
1030 {
1031         struct tuner_simple_priv *priv = NULL;
1032         int instance;
1033
1034         if (type >= tuner_count) {
1035                 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1036                        __func__, type, tuner_count-1);
1037                 return NULL;
1038         }
1039
1040         /* If i2c_adap is set, check that the tuner is at the correct address.
1041          * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1042          * by the digital demod via calc_regs.
1043          */
1044         if (i2c_adap != NULL) {
1045                 u8 b[1];
1046                 struct i2c_msg msg = {
1047                         .addr = i2c_addr, .flags = I2C_M_RD,
1048                         .buf = b, .len = 1,
1049                 };
1050
1051                 if (fe->ops.i2c_gate_ctrl)
1052                         fe->ops.i2c_gate_ctrl(fe, 1);
1053
1054                 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1055                         printk(KERN_WARNING "tuner-simple %d-%04x: "
1056                                "unable to probe %s, proceeding anyway.",
1057                                i2c_adapter_id(i2c_adap), i2c_addr,
1058                                tuners[type].name);
1059
1060                 if (fe->ops.i2c_gate_ctrl)
1061                         fe->ops.i2c_gate_ctrl(fe, 0);
1062         }
1063
1064         mutex_lock(&tuner_simple_list_mutex);
1065
1066         instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1067                                               hybrid_tuner_instance_list,
1068                                               i2c_adap, i2c_addr,
1069                                               "tuner-simple");
1070         switch (instance) {
1071         case 0:
1072                 mutex_unlock(&tuner_simple_list_mutex);
1073                 return NULL;
1074         case 1:
1075                 fe->tuner_priv = priv;
1076
1077                 priv->type = type;
1078                 priv->tun  = &tuners[type];
1079                 priv->nr   = simple_devcount++;
1080                 break;
1081         default:
1082                 fe->tuner_priv = priv;
1083                 break;
1084         }
1085
1086         mutex_unlock(&tuner_simple_list_mutex);
1087
1088         memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1089                sizeof(struct dvb_tuner_ops));
1090
1091         if (type != priv->type)
1092                 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1093                             type, priv->type, priv->tun->name);
1094         else
1095                 tuner_info("type set to %d (%s)\n",
1096                            priv->type, priv->tun->name);
1097
1098         if ((debug) || ((atv_input[priv->nr] > 0) ||
1099                         (dtv_input[priv->nr] > 0))) {
1100                 if (0 == atv_input[priv->nr])
1101                         tuner_info("tuner %d atv rf input will be "
1102                                    "autoselected\n", priv->nr);
1103                 else
1104                         tuner_info("tuner %d atv rf input will be "
1105                                    "set to input %d (insmod option)\n",
1106                                    priv->nr, atv_input[priv->nr]);
1107                 if (0 == dtv_input[priv->nr])
1108                         tuner_info("tuner %d dtv rf input will be "
1109                                    "autoselected\n", priv->nr);
1110                 else
1111                         tuner_info("tuner %d dtv rf input will be "
1112                                    "set to input %d (insmod option)\n",
1113                                    priv->nr, dtv_input[priv->nr]);
1114         }
1115
1116         strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1117                 sizeof(fe->ops.tuner_ops.info.name));
1118
1119         return fe;
1120 }
1121 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1122
1123 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1124 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1125 MODULE_LICENSE("GPL");
1126
1127 /*
1128  * Overrides for Emacs so that we follow Linus's tabbing style.
1129  * ---------------------------------------------------------------------------
1130  * Local variables:
1131  * c-basic-offset: 8
1132  * End:
1133  */