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, 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 (should be 2)\n",
 407                                    rc);
 408                 rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2);
 409                 if (2 != rc)
 410                         tuner_warn("i2c i/o error: rc == %d (should be 2)\n",
 411                                    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 (should be 1)\n",
 466                                            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 (should be 4)\n",
 486                                    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. Most cards have a TEA5767 for FM\n");
 502                 return -EINVAL;
 503         case TUNER_PHILIPS_FM1216ME_MK3:
 504         case TUNER_PHILIPS_FM1236_MK3:
 505         case TUNER_PHILIPS_FMD1216ME_MK3:
 506         case TUNER_PHILIPS_FMD1216MEX_MK3:
 507         case TUNER_LG_NTSC_TAPE:
 508         case TUNER_PHILIPS_FM1256_IH3:
 509         case TUNER_TCL_MF02GIP_5N:
 510                 buffer[3] = 0x19;
 511                 break;
 512         case TUNER_PHILIPS_FM1216MK5:
 513                 buffer[2] = 0x88;
 514                 buffer[3] = 0x09;
 515                 break;
 516         case TUNER_TNF_5335MF:
 517                 buffer[3] = 0x11;
 518                 break;
 519         case TUNER_LG_PAL_FM:
 520                 buffer[3] = 0xa5;
 521                 break;
 522         case TUNER_THOMSON_DTT761X:
 523                 buffer[3] = 0x39;
 524                 break;
 525         case TUNER_PHILIPS_FQ1216LME_MK3:
 526         case TUNER_PHILIPS_FQ1236_MK5:
 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         u8 buffer[4];
 549         int rc, IFPCoff, i;
 550         enum param_type desired_type;
 551         struct tuner_params *t_params;
 552
 553         /* IFPCoff = Video Intermediate Frequency - Vif:
 554                 940  =16*58.75  NTSC/J (Japan)
 555                 732  =16*45.75  M/N STD
 556                 704  =16*44     ATSC (at DVB code)
 557                 632  =16*39.50  I U.K.
 558                 622.4=16*38.90  B/G D/K I, L STD
 559                 592  =16*37.00  D China
 560                 590  =16.36.875 B Australia
 561                 543.2=16*33.95  L' STD
 562                 171.2=16*10.70  FM Radio (at set_radio_freq)
 563         */
 564
 565         if (params->std == V4L2_STD_NTSC_M_JP) {
 566                 IFPCoff      = 940;
 567                 desired_type = TUNER_PARAM_TYPE_NTSC;
 568         } else if ((params->std & V4L2_STD_MN) &&
 569                   !(params->std & ~V4L2_STD_MN)) {
 570                 IFPCoff      = 732;
 571                 desired_type = TUNER_PARAM_TYPE_NTSC;
 572         } else if (params->std == V4L2_STD_SECAM_LC) {
 573                 IFPCoff      = 543;
 574                 desired_type = TUNER_PARAM_TYPE_SECAM;
 575         } else {
 576                 IFPCoff      = 623;
 577                 desired_type = TUNER_PARAM_TYPE_PAL;
 578         }
 579
 580         t_params = simple_tuner_params(fe, desired_type);
 581
 582         i = simple_config_lookup(fe, t_params, &params->frequency,
 583                                  &config, &cb);
 584
 585         div = params->frequency + IFPCoff + offset;
 586
 587         tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n",
 588                   params->frequency / 16, params->frequency % 16 * 100 / 16,
 589                   IFPCoff / 16, IFPCoff % 16 * 100 / 16,
 590                   offset / 16, offset % 16 * 100 / 16, div);
 591
 592         /* tv norm specific stuff for multi-norm tuners */
 593         simple_std_setup(fe, params, &config, &cb);
 594
 595         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 596                 buffer[0] = config;
 597                 buffer[1] = cb;
 598                 buffer[2] = (div>>8) & 0x7f;
 599                 buffer[3] = div      & 0xff;
 600         } else {
 601                 buffer[0] = (div>>8) & 0x7f;
 602                 buffer[1] = div      & 0xff;
 603                 buffer[2] = config;
 604                 buffer[3] = cb;
 605         }
 606         priv->last_div = div;
 607         if (t_params->has_tda9887) {
 608                 struct v4l2_priv_tun_config tda9887_cfg;
 609                 int tda_config = 0;
 610                 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
 611                                                  V4L2_STD_SECAM_LC)) &&
 612                         !(params->std & ~(V4L2_STD_SECAM_L |
 613                                           V4L2_STD_SECAM_LC));
 614
 615                 tda9887_cfg.tuner = TUNER_TDA9887;
 616                 tda9887_cfg.priv  = &tda_config;
 617
 618                 if (params->std == V4L2_STD_SECAM_LC) {
 619                         if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
 620                                 tda_config |= TDA9887_PORT1_ACTIVE;
 621                         if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
 622                                 tda_config |= TDA9887_PORT2_ACTIVE;
 623                 } else {
 624                         if (t_params->port1_active)
 625                                 tda_config |= TDA9887_PORT1_ACTIVE;
 626                         if (t_params->port2_active)
 627                                 tda_config |= TDA9887_PORT2_ACTIVE;
 628                 }
 629                 if (t_params->intercarrier_mode)
 630                         tda_config |= TDA9887_INTERCARRIER;
 631                 if (is_secam_l) {
 632                         if (i == 0 && t_params->default_top_secam_low)
 633                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
 634                         else if (i == 1 && t_params->default_top_secam_mid)
 635                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
 636                         else if (t_params->default_top_secam_high)
 637                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
 638                 } else {
 639                         if (i == 0 && t_params->default_top_low)
 640                                 tda_config |= TDA9887_TOP(t_params->default_top_low);
 641                         else if (i == 1 && t_params->default_top_mid)
 642                                 tda_config |= TDA9887_TOP(t_params->default_top_mid);
 643                         else if (t_params->default_top_high)
 644                                 tda_config |= TDA9887_TOP(t_params->default_top_high);
 645                 }
 646                 if (t_params->default_pll_gating_18)
 647                         tda_config |= TDA9887_GATING_18;
 648                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 649                                     &tda9887_cfg);
 650         }
 651         tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 652                   buffer[0], buffer[1], buffer[2], buffer[3]);
 653
 654         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 655         if (4 != rc)
 656                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 657
 658         simple_post_tune(fe, &buffer[0], div, config, cb);
 659
 660         return 0;
 661 }
 662
 663 static int simple_set_radio_freq(struct dvb_frontend *fe,
 664                                  struct analog_parameters *params)
 665 {
 666         struct tunertype *tun;
 667         struct tuner_simple_priv *priv = fe->tuner_priv;
 668         u8 buffer[4];
 669         u16 div;
 670         int rc, j;
 671         struct tuner_params *t_params;
 672         unsigned int freq = params->frequency;
 673         bool mono = params->audmode == V4L2_TUNER_MODE_MONO;
 674
 675         tun = priv->tun;
 676
 677         for (j = tun->count-1; j > 0; j--)
 678                 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
 679                         break;
 680         /* default t_params (j=0) will be used if desired type wasn't found */
 681         t_params = &tun->params[j];
 682
 683         /* Select Radio 1st IF used */
 684         switch (t_params->radio_if) {
 685         case 0: /* 10.7 MHz */
 686                 freq += (unsigned int)(10.7*16000);
 687                 break;
 688         case 1: /* 33.3 MHz */
 689                 freq += (unsigned int)(33.3*16000);
 690                 break;
 691         case 2: /* 41.3 MHz */
 692                 freq += (unsigned int)(41.3*16000);
 693                 break;
 694         default:
 695                 tuner_warn("Unsupported radio_if value %d\n",
 696                            t_params->radio_if);
 697                 return 0;
 698         }
 699
 700         buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
 701                     TUNER_RATIO_SELECT_50; /* 50 kHz step */
 702
 703         /* Bandswitch byte */
 704         if (simple_radio_bandswitch(fe, &buffer[0]))
 705                 return 0;
 706
 707         /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
 708            freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
 709            freq * (1/800) */
 710         div = (freq + 400) / 800;
 711
 712         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 713                 buffer[0] = buffer[2];
 714                 buffer[1] = buffer[3];
 715                 buffer[2] = (div>>8) & 0x7f;
 716                 buffer[3] = div      & 0xff;
 717         } else {
 718                 buffer[0] = (div>>8) & 0x7f;
 719                 buffer[1] = div      & 0xff;
 720         }
 721
 722         tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
 723                buffer[0], buffer[1], buffer[2], buffer[3]);
 724         priv->last_div = div;
 725
 726         if (t_params->has_tda9887) {
 727                 int config = 0;
 728                 struct v4l2_priv_tun_config tda9887_cfg;
 729
 730                 tda9887_cfg.tuner = TUNER_TDA9887;
 731                 tda9887_cfg.priv = &config;
 732
 733                 if (t_params->port1_active &&
 734                     !t_params->port1_fm_high_sensitivity)
 735                         config |= TDA9887_PORT1_ACTIVE;
 736                 if (t_params->port2_active &&
 737                     !t_params->port2_fm_high_sensitivity)
 738                         config |= TDA9887_PORT2_ACTIVE;
 739                 if (t_params->intercarrier_mode)
 740                         config |= TDA9887_INTERCARRIER;
 741                 if (t_params->port1_set_for_fm_mono && mono)
 742                         config &= ~TDA9887_PORT1_ACTIVE;
 743                 if (t_params->fm_gain_normal)
 744                         config |= TDA9887_GAIN_NORMAL;
 745                 if (t_params->radio_if == 2)
 746                         config |= TDA9887_RIF_41_3;
 747                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 748                                     &tda9887_cfg);
 749         }
 750         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 751         if (4 != rc)
 752                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 753
 754         /* Write AUX byte */
 755         switch (priv->type) {
 756         case TUNER_PHILIPS_FM1216ME_MK3:
 757                 buffer[2] = 0x98;
 758                 buffer[3] = 0x20; /* set TOP AGC */
 759                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 760                 if (4 != rc)
 761                         tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 762                 break;
 763         }
 764
 765         return 0;
 766 }
 767
 768 static int simple_set_params(struct dvb_frontend *fe,
 769                              struct analog_parameters *params)
 770 {
 771         struct tuner_simple_priv *priv = fe->tuner_priv;
 772         int ret = -EINVAL;
 773
 774         if (priv->i2c_props.adap == NULL)
 775                 return -EINVAL;
 776
 777         switch (params->mode) {
 778         case V4L2_TUNER_RADIO:
 779                 priv->radio_mode = true;
 780                 ret = simple_set_radio_freq(fe, params);
 781                 priv->frequency = params->frequency * 125 / 2;
 782                 break;
 783         case V4L2_TUNER_ANALOG_TV:
 784         case V4L2_TUNER_DIGITAL_TV:
 785                 priv->radio_mode = false;
 786                 ret = simple_set_tv_freq(fe, params);
 787                 priv->frequency = params->frequency * 62500;
 788                 break;
 789         }
 790         priv->bandwidth = 0;
 791
 792         return ret;
 793 }
 794
 795 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
 796                            const u32 delsys,
 797                            const u32 frequency,
 798                            const u32 bandwidth)
 799 {
 800         struct tuner_simple_priv *priv = fe->tuner_priv;
 801
 802         switch (priv->type) {
 803         case TUNER_PHILIPS_FMD1216ME_MK3:
 804         case TUNER_PHILIPS_FMD1216MEX_MK3:
 805                 if (bandwidth == 8000000 &&
 806                     frequency >= 158870000)
 807                         buf[3] |= 0x08;
 808                 break;
 809         case TUNER_PHILIPS_TD1316:
 810                 /* determine band */
 811                 buf[3] |= (frequency < 161000000) ? 1 :
 812                           (frequency < 444000000) ? 2 : 4;
 813
 814                 /* setup PLL filter */
 815                 if (bandwidth == 8000000)
 816                         buf[3] |= 1 << 3;
 817                 break;
 818         case TUNER_PHILIPS_TUV1236D:
 819         case TUNER_PHILIPS_FCV1236D:
 820         {
 821                 unsigned int new_rf;
 822
 823                 if (dtv_input[priv->nr])
 824                         new_rf = dtv_input[priv->nr];
 825                 else
 826                         switch (delsys) {
 827                         case SYS_DVBC_ANNEX_B:
 828                                 new_rf = 1;
 829                                 break;
 830                         case SYS_ATSC:
 831                         default:
 832                                 new_rf = 0;
 833                                 break;
 834                         }
 835                 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
 836                 break;
 837         }
 838         default:
 839                 break;
 840         }
 841 }
 842
 843 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
 844                                 const u32 delsys,
 845                                 const u32 freq,
 846                                 const u32 bw)
 847 {
 848         /* This function returns the tuned frequency on success, 0 on error */
 849         struct tuner_simple_priv *priv = fe->tuner_priv;
 850         struct tunertype *tun = priv->tun;
 851         struct tuner_params *t_params;
 852         u8 config, cb;
 853         u32 div;
 854         int ret;
 855         u32 frequency = freq / 62500;
 856
 857         if (!tun->stepsize) {
 858                 /* tuner-core was loaded before the digital tuner was
 859                  * configured and somehow picked the wrong tuner type */
 860                 tuner_err("attempt to treat tuner %d (%s) as digital tuner without stepsize defined.\n",
 861                           priv->type, priv->tun->name);
 862                 return 0; /* failure */
 863         }
 864
 865         t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
 866         ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
 867         if (ret < 0)
 868                 return 0; /* failure */
 869
 870         div = ((frequency + t_params->iffreq) * 62500 + offset +
 871                tun->stepsize/2) / tun->stepsize;
 872
 873         buf[0] = div >> 8;
 874         buf[1] = div & 0xff;
 875         buf[2] = config;
 876         buf[3] = cb;
 877
 878         simple_set_dvb(fe, buf, delsys, freq, bw);
 879
 880         tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 881                   tun->name, div, buf[0], buf[1], buf[2], buf[3]);
 882
 883         /* calculate the frequency we set it to */
 884         return (div * tun->stepsize) - t_params->iffreq;
 885 }
 886
 887 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
 888                                 u8 *buf, int buf_len)
 889 {
 890         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 891         u32 delsys = c->delivery_system;
 892         u32 bw = c->bandwidth_hz;
 893         struct tuner_simple_priv *priv = fe->tuner_priv;
 894         u32 frequency;
 895
 896         if (buf_len < 5)
 897                 return -EINVAL;
 898
 899         frequency = simple_dvb_configure(fe, buf+1, delsys, c->frequency, bw);
 900         if (frequency == 0)
 901                 return -EINVAL;
 902
 903         buf[0] = priv->i2c_props.addr;
 904
 905         priv->frequency = frequency;
 906         priv->bandwidth = c->bandwidth_hz;
 907
 908         return 5;
 909 }
 910
 911 static int simple_dvb_set_params(struct dvb_frontend *fe)
 912 {
 913         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 914         u32 delsys = c->delivery_system;
 915         u32 bw = c->bandwidth_hz;
 916         u32 freq = c->frequency;
 917         struct tuner_simple_priv *priv = fe->tuner_priv;
 918         u32 frequency;
 919         u32 prev_freq, prev_bw;
 920         int ret;
 921         u8 buf[5];
 922
 923         if (priv->i2c_props.adap == NULL)
 924                 return -EINVAL;
 925
 926         prev_freq = priv->frequency;
 927         prev_bw   = priv->bandwidth;
 928
 929         frequency = simple_dvb_configure(fe, buf+1, delsys, freq, bw);
 930         if (frequency == 0)
 931                 return -EINVAL;
 932
 933         buf[0] = priv->i2c_props.addr;
 934
 935         priv->frequency = frequency;
 936         priv->bandwidth = bw;
 937
 938         /* put analog demod in standby when tuning digital */
 939         if (fe->ops.analog_ops.standby)
 940                 fe->ops.analog_ops.standby(fe);
 941
 942         if (fe->ops.i2c_gate_ctrl)
 943                 fe->ops.i2c_gate_ctrl(fe, 1);
 944
 945         /* buf[0] contains the i2c address, but *
 946          * we already have it in i2c_props.addr */
 947         ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
 948         if (ret != 4)
 949                 goto fail;
 950
 951         return 0;
 952 fail:
 953         /* calc_regs sets frequency and bandwidth. if we failed, unset them */
 954         priv->frequency = prev_freq;
 955         priv->bandwidth = prev_bw;
 956
 957         return ret;
 958 }
 959
 960 static int simple_init(struct dvb_frontend *fe)
 961 {
 962         struct tuner_simple_priv *priv = fe->tuner_priv;
 963
 964         if (priv->i2c_props.adap == NULL)
 965                 return -EINVAL;
 966
 967         if (priv->tun->initdata) {
 968                 int ret;
 969
 970                 if (fe->ops.i2c_gate_ctrl)
 971                         fe->ops.i2c_gate_ctrl(fe, 1);
 972
 973                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 974                                           priv->tun->initdata + 1,
 975                                           priv->tun->initdata[0]);
 976                 if (ret != priv->tun->initdata[0])
 977                         return ret;
 978         }
 979
 980         return 0;
 981 }
 982
 983 static int simple_sleep(struct dvb_frontend *fe)
 984 {
 985         struct tuner_simple_priv *priv = fe->tuner_priv;
 986
 987         if (priv->i2c_props.adap == NULL)
 988                 return -EINVAL;
 989
 990         if (priv->tun->sleepdata) {
 991                 int ret;
 992
 993                 if (fe->ops.i2c_gate_ctrl)
 994                         fe->ops.i2c_gate_ctrl(fe, 1);
 995
 996                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 997                                           priv->tun->sleepdata + 1,
 998                                           priv->tun->sleepdata[0]);
 999                 if (ret != priv->tun->sleepdata[0])
1000                         return ret;
1001         }
1002
1003         return 0;
1004 }
1005
1006 static void simple_release(struct dvb_frontend *fe)
1007 {
1008         struct tuner_simple_priv *priv = fe->tuner_priv;
1009
1010         mutex_lock(&tuner_simple_list_mutex);
1011
1012         if (priv)
1013                 hybrid_tuner_release_state(priv);
1014
1015         mutex_unlock(&tuner_simple_list_mutex);
1016
1017         fe->tuner_priv = NULL;
1018 }
1019
1020 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1021 {
1022         struct tuner_simple_priv *priv = fe->tuner_priv;
1023         *frequency = priv->frequency;
1024         return 0;
1025 }
1026
1027 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1028 {
1029         struct tuner_simple_priv *priv = fe->tuner_priv;
1030         *bandwidth = priv->bandwidth;
1031         return 0;
1032 }
1033
1034 static const struct dvb_tuner_ops simple_tuner_ops = {
1035         .init              = simple_init,
1036         .sleep             = simple_sleep,
1037         .set_analog_params = simple_set_params,
1038         .set_params        = simple_dvb_set_params,
1039         .calc_regs         = simple_dvb_calc_regs,
1040         .release           = simple_release,
1041         .get_frequency     = simple_get_frequency,
1042         .get_bandwidth     = simple_get_bandwidth,
1043         .get_status        = simple_get_status,
1044         .get_rf_strength   = simple_get_rf_strength,
1045 };
1046
1047 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1048                                          struct i2c_adapter *i2c_adap,
1049                                          u8 i2c_addr,
1050                                          unsigned int type)
1051 {
1052         struct tuner_simple_priv *priv = NULL;
1053         int instance;
1054
1055         if (type >= tuner_count) {
1056                 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1057                        __func__, type, tuner_count-1);
1058                 return NULL;
1059         }
1060
1061         /* If i2c_adap is set, check that the tuner is at the correct address.
1062          * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1063          * by the digital demod via calc_regs.
1064          */
1065         if (i2c_adap != NULL) {
1066                 u8 b[1];
1067                 struct i2c_msg msg = {
1068                         .addr = i2c_addr, .flags = I2C_M_RD,
1069                         .buf = b, .len = 1,
1070                 };
1071
1072                 if (fe->ops.i2c_gate_ctrl)
1073                         fe->ops.i2c_gate_ctrl(fe, 1);
1074
1075                 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1076                         printk(KERN_WARNING "tuner-simple %d-%04x: unable to probe %s, proceeding anyway.",
1077                                i2c_adapter_id(i2c_adap), i2c_addr,
1078                                tuners[type].name);
1079
1080                 if (fe->ops.i2c_gate_ctrl)
1081                         fe->ops.i2c_gate_ctrl(fe, 0);
1082         }
1083
1084         mutex_lock(&tuner_simple_list_mutex);
1085
1086         instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1087                                               hybrid_tuner_instance_list,
1088                                               i2c_adap, i2c_addr,
1089                                               "tuner-simple");
1090         switch (instance) {
1091         case 0:
1092                 mutex_unlock(&tuner_simple_list_mutex);
1093                 return NULL;
1094         case 1:
1095                 fe->tuner_priv = priv;
1096
1097                 priv->type = type;
1098                 priv->tun  = &tuners[type];
1099                 priv->nr   = simple_devcount++;
1100                 break;
1101         default:
1102                 fe->tuner_priv = priv;
1103                 break;
1104         }
1105
1106         mutex_unlock(&tuner_simple_list_mutex);
1107
1108         memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1109                sizeof(struct dvb_tuner_ops));
1110
1111         if (type != priv->type)
1112                 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1113                             type, priv->type, priv->tun->name);
1114         else
1115                 tuner_info("type set to %d (%s)\n",
1116                            priv->type, priv->tun->name);
1117
1118         if ((debug) || ((atv_input[priv->nr] > 0) ||
1119                         (dtv_input[priv->nr] > 0))) {
1120                 if (0 == atv_input[priv->nr])
1121                         tuner_info("tuner %d atv rf input will be autoselected\n",
1122                                    priv->nr);
1123                 else
1124                         tuner_info("tuner %d atv rf input will be set to input %d (insmod option)\n",
1125                                    priv->nr, atv_input[priv->nr]);
1126                 if (0 == dtv_input[priv->nr])
1127                         tuner_info("tuner %d dtv rf input will be autoselected\n",
1128                                    priv->nr);
1129                 else
1130                         tuner_info("tuner %d dtv rf input will be set to input %d (insmod option)\n",
1131                                    priv->nr, dtv_input[priv->nr]);
1132         }
1133
1134         strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1135                 sizeof(fe->ops.tuner_ops.info.name));
1136
1137         return fe;
1138 }
1139 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1140
1141 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1142 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1143 MODULE_LICENSE("GPL");