git.oblomov.eu Git - linux-2.6/blob - 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         default:
 148                 return status & TUNER_STEREO;
 149         }
 150 }
 151
 152 static inline int tuner_islocked(const int status)
 153 {
 154         return (status & TUNER_FL);
 155 }
 156
 157 static inline int tuner_afcstatus(const int status)
 158 {
 159         return (status & TUNER_AFC) - 2;
 160 }
 161
 162
 163 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
 164 {
 165         struct tuner_simple_priv *priv = fe->tuner_priv;
 166         int tuner_status;
 167
 168         if (priv->i2c_props.adap == NULL)
 169                 return -EINVAL;
 170
 171         tuner_status = tuner_read_status(fe);
 172
 173         *status = 0;
 174
 175         if (tuner_islocked(tuner_status))
 176                 *status = TUNER_STATUS_LOCKED;
 177         if (tuner_stereo(priv->type, tuner_status))
 178                 *status |= TUNER_STATUS_STEREO;
 179
 180         tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
 181
 182         return 0;
 183 }
 184
 185 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
 186 {
 187         struct tuner_simple_priv *priv = fe->tuner_priv;
 188         int signal;
 189
 190         if (priv->i2c_props.adap == NULL)
 191                 return -EINVAL;
 192
 193         signal = tuner_signal(tuner_read_status(fe));
 194
 195         *strength = signal;
 196
 197         tuner_dbg("Signal strength: %d\n", signal);
 198
 199         return 0;
 200 }
 201
 202 /* ---------------------------------------------------------------------- */
 203
 204 static inline char *tuner_param_name(enum param_type type)
 205 {
 206         char *name;
 207
 208         switch (type) {
 209         case TUNER_PARAM_TYPE_RADIO:
 210                 name = "radio";
 211                 break;
 212         case TUNER_PARAM_TYPE_PAL:
 213                 name = "pal";
 214                 break;
 215         case TUNER_PARAM_TYPE_SECAM:
 216                 name = "secam";
 217                 break;
 218         case TUNER_PARAM_TYPE_NTSC:
 219                 name = "ntsc";
 220                 break;
 221         case TUNER_PARAM_TYPE_DIGITAL:
 222                 name = "digital";
 223                 break;
 224         default:
 225                 name = "unknown";
 226                 break;
 227         }
 228         return name;
 229 }
 230
 231 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
 232                                                 enum param_type desired_type)
 233 {
 234         struct tuner_simple_priv *priv = fe->tuner_priv;
 235         struct tunertype *tun = priv->tun;
 236         int i;
 237
 238         for (i = 0; i < tun->count; i++)
 239                 if (desired_type == tun->params[i].type)
 240                         break;
 241
 242         /* use default tuner params if desired_type not available */
 243         if (i == tun->count) {
 244                 tuner_dbg("desired params (%s) undefined for tuner %d\n",
 245                           tuner_param_name(desired_type), priv->type);
 246                 i = 0;
 247         }
 248
 249         tuner_dbg("using tuner params #%d (%s)\n", i,
 250                   tuner_param_name(tun->params[i].type));
 251
 252         return &tun->params[i];
 253 }
 254
 255 static int simple_config_lookup(struct dvb_frontend *fe,
 256                                 struct tuner_params *t_params,
 257                                 unsigned *frequency, u8 *config, u8 *cb)
 258 {
 259         struct tuner_simple_priv *priv = fe->tuner_priv;
 260         int i;
 261
 262         for (i = 0; i < t_params->count; i++) {
 263                 if (*frequency > t_params->ranges[i].limit)
 264                         continue;
 265                 break;
 266         }
 267         if (i == t_params->count) {
 268                 tuner_dbg("frequency out of range (%d > %d)\n",
 269                           *frequency, t_params->ranges[i - 1].limit);
 270                 *frequency = t_params->ranges[--i].limit;
 271         }
 272         *config = t_params->ranges[i].config;
 273         *cb     = t_params->ranges[i].cb;
 274
 275         tuner_dbg("freq = %d.%02d (%d), range = %d, "
 276                   "config = 0x%02x, cb = 0x%02x\n",
 277                   *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
 278                   i, *config, *cb);
 279
 280         return i;
 281 }
 282
 283 /* ---------------------------------------------------------------------- */
 284
 285 static void simple_set_rf_input(struct dvb_frontend *fe,
 286                                 u8 *config, u8 *cb, unsigned int rf)
 287 {
 288         struct tuner_simple_priv *priv = fe->tuner_priv;
 289
 290         switch (priv->type) {
 291         case TUNER_PHILIPS_TUV1236D:
 292                 switch (rf) {
 293                 case 1:
 294                         *cb |= 0x08;
 295                         break;
 296                 default:
 297                         *cb &= ~0x08;
 298                         break;
 299                 }
 300                 break;
 301         case TUNER_PHILIPS_FCV1236D:
 302                 switch (rf) {
 303                 case 1:
 304                         *cb |= 0x01;
 305                         break;
 306                 default:
 307                         *cb &= ~0x01;
 308                         break;
 309                 }
 310                 break;
 311         default:
 312                 break;
 313         }
 314 }
 315
 316 static int simple_std_setup(struct dvb_frontend *fe,
 317                             struct analog_parameters *params,
 318                             u8 *config, u8 *cb)
 319 {
 320         struct tuner_simple_priv *priv = fe->tuner_priv;
 321         u8 tuneraddr;
 322         int rc;
 323
 324         /* tv norm specific stuff for multi-norm tuners */
 325         switch (priv->type) {
 326         case TUNER_PHILIPS_SECAM: /* FI1216MF */
 327                 /* 0x01 -> ??? no change ??? */
 328                 /* 0x02 -> PAL BDGHI / SECAM L */
 329                 /* 0x04 -> ??? PAL others / SECAM others ??? */
 330                 *cb &= ~0x03;
 331                 if (params->std & V4L2_STD_SECAM_L)
 332                         /* also valid for V4L2_STD_SECAM */
 333                         *cb |= PHILIPS_MF_SET_STD_L;
 334                 else if (params->std & V4L2_STD_SECAM_LC)
 335                         *cb |= PHILIPS_MF_SET_STD_LC;
 336                 else /* V4L2_STD_B|V4L2_STD_GH */
 337                         *cb |= PHILIPS_MF_SET_STD_BG;
 338                 break;
 339
 340         case TUNER_TEMIC_4046FM5:
 341                 *cb &= ~0x0f;
 342
 343                 if (params->std & V4L2_STD_PAL_BG) {
 344                         *cb |= TEMIC_SET_PAL_BG;
 345
 346                 } else if (params->std & V4L2_STD_PAL_I) {
 347                         *cb |= TEMIC_SET_PAL_I;
 348
 349                 } else if (params->std & V4L2_STD_PAL_DK) {
 350                         *cb |= TEMIC_SET_PAL_DK;
 351
 352                 } else if (params->std & V4L2_STD_SECAM_L) {
 353                         *cb |= TEMIC_SET_PAL_L;
 354
 355                 }
 356                 break;
 357
 358         case TUNER_PHILIPS_FQ1216ME:
 359                 *cb &= ~0x0f;
 360
 361                 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
 362                         *cb |= PHILIPS_SET_PAL_BGDK;
 363
 364                 } else if (params->std & V4L2_STD_PAL_I) {
 365                         *cb |= PHILIPS_SET_PAL_I;
 366
 367                 } else if (params->std & V4L2_STD_SECAM_L) {
 368                         *cb |= PHILIPS_SET_PAL_L;
 369
 370                 }
 371                 break;
 372
 373         case TUNER_PHILIPS_FCV1236D:
 374                 /* 0x00 -> ATSC antenna input 1 */
 375                 /* 0x01 -> ATSC antenna input 2 */
 376                 /* 0x02 -> NTSC antenna input 1 */
 377                 /* 0x03 -> NTSC antenna input 2 */
 378                 *cb &= ~0x03;
 379                 if (!(params->std & V4L2_STD_ATSC))
 380                         *cb |= 2;
 381                 break;
 382
 383         case TUNER_MICROTUNE_4042FI5:
 384                 /* Set the charge pump for fast tuning */
 385                 *config |= TUNER_CHARGE_PUMP;
 386                 break;
 387
 388         case TUNER_PHILIPS_TUV1236D:
 389         {
 390                 /* 0x40 -> ATSC antenna input 1 */
 391                 /* 0x48 -> ATSC antenna input 2 */
 392                 /* 0x00 -> NTSC antenna input 1 */
 393                 /* 0x08 -> NTSC antenna input 2 */
 394                 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
 395                 *cb &= ~0x40;
 396                 if (params->std & V4L2_STD_ATSC) {
 397                         *cb |= 0x40;
 398                         buffer[1] = 0x04;
 399                 }
 400                 /* set to the correct mode (analog or digital) */
 401                 tuneraddr = priv->i2c_props.addr;
 402                 priv->i2c_props.addr = 0x0a;
 403                 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[0], 2);
 404                 if (2 != rc)
 405                         tuner_warn("i2c i/o error: rc == %d "
 406                                    "(should be 2)\n", rc);
 407                 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[2], 2);
 408                 if (2 != rc)
 409                         tuner_warn("i2c i/o error: rc == %d "
 410                                    "(should be 2)\n", rc);
 411                 priv->i2c_props.addr = tuneraddr;
 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_post_tune(struct dvb_frontend *fe, u8 *buffer,
 422                             u16 div, u8 config, u8 cb)
 423 {
 424         struct tuner_simple_priv *priv = fe->tuner_priv;
 425         int rc;
 426
 427         switch (priv->type) {
 428         case TUNER_LG_TDVS_H06XF:
 429                 /* Set the Auxiliary Byte. */
 430                 buffer[0] = buffer[2];
 431                 buffer[0] &= ~0x20;
 432                 buffer[0] |= 0x18;
 433                 buffer[1] = 0x20;
 434                 tuner_dbg("tv 0x%02x 0x%02x\n", buffer[0], buffer[1]);
 435
 436                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
 437                 if (2 != rc)
 438                         tuner_warn("i2c i/o error: rc == %d "
 439                                    "(should be 2)\n", rc);
 440                 break;
 441         case TUNER_MICROTUNE_4042FI5:
 442         {
 443                 /* FIXME - this may also work for other tuners */
 444                 unsigned long timeout = jiffies + msecs_to_jiffies(1);
 445                 u8 status_byte = 0;
 446
 447                 /* Wait until the PLL locks */
 448                 for (;;) {
 449                         if (time_after(jiffies, timeout))
 450                                 return 0;
 451                         rc = tuner_i2c_xfer_recv(&priv->i2c_props,
 452                                                  &status_byte, 1);
 453                         if (1 != rc) {
 454                                 tuner_warn("i2c i/o read error: rc == %d "
 455                                            "(should be 1)\n", rc);
 456                                 break;
 457                         }
 458                         if (status_byte & TUNER_PLL_LOCKED)
 459                                 break;
 460                         udelay(10);
 461                 }
 462
 463                 /* Set the charge pump for optimized phase noise figure */
 464                 config &= ~TUNER_CHARGE_PUMP;
 465                 buffer[0] = (div>>8) & 0x7f;
 466                 buffer[1] = div      & 0xff;
 467                 buffer[2] = config;
 468                 buffer[3] = cb;
 469                 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 470                           buffer[0], buffer[1], buffer[2], buffer[3]);
 471
 472                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 473                 if (4 != rc)
 474                         tuner_warn("i2c i/o error: rc == %d "
 475                                    "(should be 4)\n", rc);
 476                 break;
 477         }
 478         }
 479
 480         return 0;
 481 }
 482
 483 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
 484 {
 485         struct tuner_simple_priv *priv = fe->tuner_priv;
 486
 487         switch (priv->type) {
 488         case TUNER_TENA_9533_DI:
 489         case TUNER_YMEC_TVF_5533MF:
 490                 tuner_dbg("This tuner doesn't have FM. "
 491                           "Most cards have a TEA5767 for FM\n");
 492                 return 0;
 493         case TUNER_PHILIPS_FM1216ME_MK3:
 494         case TUNER_PHILIPS_FM1236_MK3:
 495         case TUNER_PHILIPS_FMD1216ME_MK3:
 496         case TUNER_PHILIPS_FMD1216MEX_MK3:
 497         case TUNER_LG_NTSC_TAPE:
 498         case TUNER_PHILIPS_FM1256_IH3:
 499         case TUNER_TCL_MF02GIP_5N:
 500                 buffer[3] = 0x19;
 501                 break;
 502         case TUNER_TNF_5335MF:
 503                 buffer[3] = 0x11;
 504                 break;
 505         case TUNER_LG_PAL_FM:
 506                 buffer[3] = 0xa5;
 507                 break;
 508         case TUNER_THOMSON_DTT761X:
 509                 buffer[3] = 0x39;
 510                 break;
 511         case TUNER_MICROTUNE_4049FM5:
 512         default:
 513                 buffer[3] = 0xa4;
 514                 break;
 515         }
 516
 517         return 0;
 518 }
 519
 520 /* ---------------------------------------------------------------------- */
 521
 522 static int simple_set_tv_freq(struct dvb_frontend *fe,
 523                               struct analog_parameters *params)
 524 {
 525         struct tuner_simple_priv *priv = fe->tuner_priv;
 526         u8 config, cb;
 527         u16 div;
 528         struct tunertype *tun;
 529         u8 buffer[4];
 530         int rc, IFPCoff, i;
 531         enum param_type desired_type;
 532         struct tuner_params *t_params;
 533
 534         tun = priv->tun;
 535
 536         /* IFPCoff = Video Intermediate Frequency - Vif:
 537                 940  =16*58.75  NTSC/J (Japan)
 538                 732  =16*45.75  M/N STD
 539                 704  =16*44     ATSC (at DVB code)
 540                 632  =16*39.50  I U.K.
 541                 622.4=16*38.90  B/G D/K I, L STD
 542                 592  =16*37.00  D China
 543                 590  =16.36.875 B Australia
 544                 543.2=16*33.95  L' STD
 545                 171.2=16*10.70  FM Radio (at set_radio_freq)
 546         */
 547
 548         if (params->std == V4L2_STD_NTSC_M_JP) {
 549                 IFPCoff      = 940;
 550                 desired_type = TUNER_PARAM_TYPE_NTSC;
 551         } else if ((params->std & V4L2_STD_MN) &&
 552                   !(params->std & ~V4L2_STD_MN)) {
 553                 IFPCoff      = 732;
 554                 desired_type = TUNER_PARAM_TYPE_NTSC;
 555         } else if (params->std == V4L2_STD_SECAM_LC) {
 556                 IFPCoff      = 543;
 557                 desired_type = TUNER_PARAM_TYPE_SECAM;
 558         } else {
 559                 IFPCoff      = 623;
 560                 desired_type = TUNER_PARAM_TYPE_PAL;
 561         }
 562
 563         t_params = simple_tuner_params(fe, desired_type);
 564
 565         i = simple_config_lookup(fe, t_params, &params->frequency,
 566                                  &config, &cb);
 567
 568         div = params->frequency + IFPCoff + offset;
 569
 570         tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
 571                   "Offset=%d.%02d MHz, div=%0d\n",
 572                   params->frequency / 16, params->frequency % 16 * 100 / 16,
 573                   IFPCoff / 16, IFPCoff % 16 * 100 / 16,
 574                   offset / 16, offset % 16 * 100 / 16, div);
 575
 576         /* tv norm specific stuff for multi-norm tuners */
 577         simple_std_setup(fe, params, &config, &cb);
 578
 579         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 580                 buffer[0] = config;
 581                 buffer[1] = cb;
 582                 buffer[2] = (div>>8) & 0x7f;
 583                 buffer[3] = div      & 0xff;
 584         } else {
 585                 buffer[0] = (div>>8) & 0x7f;
 586                 buffer[1] = div      & 0xff;
 587                 buffer[2] = config;
 588                 buffer[3] = cb;
 589         }
 590         priv->last_div = div;
 591         if (t_params->has_tda9887) {
 592                 struct v4l2_priv_tun_config tda9887_cfg;
 593                 int tda_config = 0;
 594                 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
 595                                                  V4L2_STD_SECAM_LC)) &&
 596                         !(params->std & ~(V4L2_STD_SECAM_L |
 597                                           V4L2_STD_SECAM_LC));
 598
 599                 tda9887_cfg.tuner = TUNER_TDA9887;
 600                 tda9887_cfg.priv  = &tda_config;
 601
 602                 if (params->std == V4L2_STD_SECAM_LC) {
 603                         if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
 604                                 tda_config |= TDA9887_PORT1_ACTIVE;
 605                         if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
 606                                 tda_config |= TDA9887_PORT2_ACTIVE;
 607                 } else {
 608                         if (t_params->port1_active)
 609                                 tda_config |= TDA9887_PORT1_ACTIVE;
 610                         if (t_params->port2_active)
 611                                 tda_config |= TDA9887_PORT2_ACTIVE;
 612                 }
 613                 if (t_params->intercarrier_mode)
 614                         tda_config |= TDA9887_INTERCARRIER;
 615                 if (is_secam_l) {
 616                         if (i == 0 && t_params->default_top_secam_low)
 617                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
 618                         else if (i == 1 && t_params->default_top_secam_mid)
 619                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
 620                         else if (t_params->default_top_secam_high)
 621                                 tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
 622                 } else {
 623                         if (i == 0 && t_params->default_top_low)
 624                                 tda_config |= TDA9887_TOP(t_params->default_top_low);
 625                         else if (i == 1 && t_params->default_top_mid)
 626                                 tda_config |= TDA9887_TOP(t_params->default_top_mid);
 627                         else if (t_params->default_top_high)
 628                                 tda_config |= TDA9887_TOP(t_params->default_top_high);
 629                 }
 630                 if (t_params->default_pll_gating_18)
 631                         tda_config |= TDA9887_GATING_18;
 632                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 633                                     &tda9887_cfg);
 634         }
 635         tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 636                   buffer[0], buffer[1], buffer[2], buffer[3]);
 637
 638         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 639         if (4 != rc)
 640                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 641
 642         simple_post_tune(fe, &buffer[0], div, config, cb);
 643
 644         return 0;
 645 }
 646
 647 static int simple_set_radio_freq(struct dvb_frontend *fe,
 648                                  struct analog_parameters *params)
 649 {
 650         struct tunertype *tun;
 651         struct tuner_simple_priv *priv = fe->tuner_priv;
 652         u8 buffer[4];
 653         u16 div;
 654         int rc, j;
 655         struct tuner_params *t_params;
 656         unsigned int freq = params->frequency;
 657
 658         tun = priv->tun;
 659
 660         for (j = tun->count-1; j > 0; j--)
 661                 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
 662                         break;
 663         /* default t_params (j=0) will be used if desired type wasn't found */
 664         t_params = &tun->params[j];
 665
 666         /* Select Radio 1st IF used */
 667         switch (t_params->radio_if) {
 668         case 0: /* 10.7 MHz */
 669                 freq += (unsigned int)(10.7*16000);
 670                 break;
 671         case 1: /* 33.3 MHz */
 672                 freq += (unsigned int)(33.3*16000);
 673                 break;
 674         case 2: /* 41.3 MHz */
 675                 freq += (unsigned int)(41.3*16000);
 676                 break;
 677         default:
 678                 tuner_warn("Unsupported radio_if value %d\n",
 679                            t_params->radio_if);
 680                 return 0;
 681         }
 682
 683         /* Bandswitch byte */
 684         simple_radio_bandswitch(fe, &buffer[0]);
 685
 686         buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
 687                     TUNER_RATIO_SELECT_50; /* 50 kHz step */
 688
 689         /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
 690            freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
 691            freq * (1/800) */
 692         div = (freq + 400) / 800;
 693
 694         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 695                 buffer[0] = buffer[2];
 696                 buffer[1] = buffer[3];
 697                 buffer[2] = (div>>8) & 0x7f;
 698                 buffer[3] = div      & 0xff;
 699         } else {
 700                 buffer[0] = (div>>8) & 0x7f;
 701                 buffer[1] = div      & 0xff;
 702         }
 703
 704         tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
 705                buffer[0], buffer[1], buffer[2], buffer[3]);
 706         priv->last_div = div;
 707
 708         if (t_params->has_tda9887) {
 709                 int config = 0;
 710                 struct v4l2_priv_tun_config tda9887_cfg;
 711
 712                 tda9887_cfg.tuner = TUNER_TDA9887;
 713                 tda9887_cfg.priv = &config;
 714
 715                 if (t_params->port1_active &&
 716                     !t_params->port1_fm_high_sensitivity)
 717                         config |= TDA9887_PORT1_ACTIVE;
 718                 if (t_params->port2_active &&
 719                     !t_params->port2_fm_high_sensitivity)
 720                         config |= TDA9887_PORT2_ACTIVE;
 721                 if (t_params->intercarrier_mode)
 722                         config |= TDA9887_INTERCARRIER;
 723 /*              if (t_params->port1_set_for_fm_mono)
 724                         config &= ~TDA9887_PORT1_ACTIVE;*/
 725                 if (t_params->fm_gain_normal)
 726                         config |= TDA9887_GAIN_NORMAL;
 727                 if (t_params->radio_if == 2)
 728                         config |= TDA9887_RIF_41_3;
 729                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 730                                     &tda9887_cfg);
 731         }
 732         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 733         if (4 != rc)
 734                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 735
 736         return 0;
 737 }
 738
 739 static int simple_set_params(struct dvb_frontend *fe,
 740                              struct analog_parameters *params)
 741 {
 742         struct tuner_simple_priv *priv = fe->tuner_priv;
 743         int ret = -EINVAL;
 744
 745         if (priv->i2c_props.adap == NULL)
 746                 return -EINVAL;
 747
 748         switch (params->mode) {
 749         case V4L2_TUNER_RADIO:
 750                 ret = simple_set_radio_freq(fe, params);
 751                 priv->frequency = params->frequency * 125 / 2;
 752                 break;
 753         case V4L2_TUNER_ANALOG_TV:
 754         case V4L2_TUNER_DIGITAL_TV:
 755                 ret = simple_set_tv_freq(fe, params);
 756                 priv->frequency = params->frequency * 62500;
 757                 break;
 758         }
 759         priv->bandwidth = 0;
 760
 761         return ret;
 762 }
 763
 764 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
 765                            const struct dvb_frontend_parameters *params)
 766 {
 767         struct tuner_simple_priv *priv = fe->tuner_priv;
 768
 769         switch (priv->type) {
 770         case TUNER_PHILIPS_FMD1216ME_MK3:
 771         case TUNER_PHILIPS_FMD1216MEX_MK3:
 772                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
 773                     params->frequency >= 158870000)
 774                         buf[3] |= 0x08;
 775                 break;
 776         case TUNER_PHILIPS_TD1316:
 777                 /* determine band */
 778                 buf[3] |= (params->frequency < 161000000) ? 1 :
 779                           (params->frequency < 444000000) ? 2 : 4;
 780
 781                 /* setup PLL filter */
 782                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 783                         buf[3] |= 1 << 3;
 784                 break;
 785         case TUNER_PHILIPS_TUV1236D:
 786         case TUNER_PHILIPS_FCV1236D:
 787         {
 788                 unsigned int new_rf;
 789
 790                 if (dtv_input[priv->nr])
 791                         new_rf = dtv_input[priv->nr];
 792                 else
 793                         switch (params->u.vsb.modulation) {
 794                         case QAM_64:
 795                         case QAM_256:
 796                                 new_rf = 1;
 797                                 break;
 798                         case VSB_8:
 799                         default:
 800                                 new_rf = 0;
 801                                 break;
 802                         }
 803                 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
 804                 break;
 805         }
 806         default:
 807                 break;
 808         }
 809 }
 810
 811 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
 812                                 const struct dvb_frontend_parameters *params)
 813 {
 814         /* This function returns the tuned frequency on success, 0 on error */
 815         struct tuner_simple_priv *priv = fe->tuner_priv;
 816         struct tunertype *tun = priv->tun;
 817         static struct tuner_params *t_params;
 818         u8 config, cb;
 819         u32 div;
 820         int ret;
 821         unsigned frequency = params->frequency / 62500;
 822
 823         if (!tun->stepsize) {
 824                 /* tuner-core was loaded before the digital tuner was
 825                  * configured and somehow picked the wrong tuner type */
 826                 tuner_err("attempt to treat tuner %d (%s) as digital tuner "
 827                           "without stepsize defined.\n",
 828                           priv->type, priv->tun->name);
 829                 return 0; /* failure */
 830         }
 831
 832         t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
 833         ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
 834         if (ret < 0)
 835                 return 0; /* failure */
 836
 837         div = ((frequency + t_params->iffreq) * 62500 + offset +
 838                tun->stepsize/2) / tun->stepsize;
 839
 840         buf[0] = div >> 8;
 841         buf[1] = div & 0xff;
 842         buf[2] = config;
 843         buf[3] = cb;
 844
 845         simple_set_dvb(fe, buf, params);
 846
 847         tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 848                   tun->name, div, buf[0], buf[1], buf[2], buf[3]);
 849
 850         /* calculate the frequency we set it to */
 851         return (div * tun->stepsize) - t_params->iffreq;
 852 }
 853
 854 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
 855                                 struct dvb_frontend_parameters *params,
 856                                 u8 *buf, int buf_len)
 857 {
 858         struct tuner_simple_priv *priv = fe->tuner_priv;
 859         u32 frequency;
 860
 861         if (buf_len < 5)
 862                 return -EINVAL;
 863
 864         frequency = simple_dvb_configure(fe, buf+1, params);
 865         if (frequency == 0)
 866                 return -EINVAL;
 867
 868         buf[0] = priv->i2c_props.addr;
 869
 870         priv->frequency = frequency;
 871         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
 872                 params->u.ofdm.bandwidth : 0;
 873
 874         return 5;
 875 }
 876
 877 static int simple_dvb_set_params(struct dvb_frontend *fe,
 878                                  struct dvb_frontend_parameters *params)
 879 {
 880         struct tuner_simple_priv *priv = fe->tuner_priv;
 881         u32 prev_freq, prev_bw;
 882         int ret;
 883         u8 buf[5];
 884
 885         if (priv->i2c_props.adap == NULL)
 886                 return -EINVAL;
 887
 888         prev_freq = priv->frequency;
 889         prev_bw   = priv->bandwidth;
 890
 891         ret = simple_dvb_calc_regs(fe, params, buf, 5);
 892         if (ret != 5)
 893                 goto fail;
 894
 895         /* put analog demod in standby when tuning digital */
 896         if (fe->ops.analog_ops.standby)
 897                 fe->ops.analog_ops.standby(fe);
 898
 899         if (fe->ops.i2c_gate_ctrl)
 900                 fe->ops.i2c_gate_ctrl(fe, 1);
 901
 902         /* buf[0] contains the i2c address, but *
 903          * we already have it in i2c_props.addr */
 904         ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
 905         if (ret != 4)
 906                 goto fail;
 907
 908         return 0;
 909 fail:
 910         /* calc_regs sets frequency and bandwidth. if we failed, unset them */
 911         priv->frequency = prev_freq;
 912         priv->bandwidth = prev_bw;
 913
 914         return ret;
 915 }
 916
 917 static int simple_init(struct dvb_frontend *fe)
 918 {
 919         struct tuner_simple_priv *priv = fe->tuner_priv;
 920
 921         if (priv->i2c_props.adap == NULL)
 922                 return -EINVAL;
 923
 924         if (priv->tun->initdata) {
 925                 int ret;
 926
 927                 if (fe->ops.i2c_gate_ctrl)
 928                         fe->ops.i2c_gate_ctrl(fe, 1);
 929
 930                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 931                                           priv->tun->initdata + 1,
 932                                           priv->tun->initdata[0]);
 933                 if (ret != priv->tun->initdata[0])
 934                         return ret;
 935         }
 936
 937         return 0;
 938 }
 939
 940 static int simple_sleep(struct dvb_frontend *fe)
 941 {
 942         struct tuner_simple_priv *priv = fe->tuner_priv;
 943
 944         if (priv->i2c_props.adap == NULL)
 945                 return -EINVAL;
 946
 947         if (priv->tun->sleepdata) {
 948                 int ret;
 949
 950                 if (fe->ops.i2c_gate_ctrl)
 951                         fe->ops.i2c_gate_ctrl(fe, 1);
 952
 953                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 954                                           priv->tun->sleepdata + 1,
 955                                           priv->tun->sleepdata[0]);
 956                 if (ret != priv->tun->sleepdata[0])
 957                         return ret;
 958         }
 959
 960         return 0;
 961 }
 962
 963 static int simple_release(struct dvb_frontend *fe)
 964 {
 965         struct tuner_simple_priv *priv = fe->tuner_priv;
 966
 967         mutex_lock(&tuner_simple_list_mutex);
 968
 969         if (priv)
 970                 hybrid_tuner_release_state(priv);
 971
 972         mutex_unlock(&tuner_simple_list_mutex);
 973
 974         fe->tuner_priv = NULL;
 975
 976         return 0;
 977 }
 978
 979 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 980 {
 981         struct tuner_simple_priv *priv = fe->tuner_priv;
 982         *frequency = priv->frequency;
 983         return 0;
 984 }
 985
 986 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
 987 {
 988         struct tuner_simple_priv *priv = fe->tuner_priv;
 989         *bandwidth = priv->bandwidth;
 990         return 0;
 991 }
 992
 993 static struct dvb_tuner_ops simple_tuner_ops = {
 994         .init              = simple_init,
 995         .sleep             = simple_sleep,
 996         .set_analog_params = simple_set_params,
 997         .set_params        = simple_dvb_set_params,
 998         .calc_regs         = simple_dvb_calc_regs,
 999         .release           = simple_release,
1000         .get_frequency     = simple_get_frequency,
1001         .get_bandwidth     = simple_get_bandwidth,
1002         .get_status        = simple_get_status,
1003         .get_rf_strength   = simple_get_rf_strength,
1004 };
1005
1006 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1007                                          struct i2c_adapter *i2c_adap,
1008                                          u8 i2c_addr,
1009                                          unsigned int type)
1010 {
1011         struct tuner_simple_priv *priv = NULL;
1012         int instance;
1013
1014         if (type >= tuner_count) {
1015                 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1016                        __func__, type, tuner_count-1);
1017                 return NULL;
1018         }
1019
1020         /* If i2c_adap is set, check that the tuner is at the correct address.
1021          * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1022          * by the digital demod via calc_regs.
1023          */
1024         if (i2c_adap != NULL) {
1025                 u8 b[1];
1026                 struct i2c_msg msg = {
1027                         .addr = i2c_addr, .flags = I2C_M_RD,
1028                         .buf = b, .len = 1,
1029                 };
1030
1031                 if (fe->ops.i2c_gate_ctrl)
1032                         fe->ops.i2c_gate_ctrl(fe, 1);
1033
1034                 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1035                         printk(KERN_WARNING "tuner-simple %d-%04x: "
1036                                "unable to probe %s, proceeding anyway.",
1037                                i2c_adapter_id(i2c_adap), i2c_addr,
1038                                tuners[type].name);
1039
1040                 if (fe->ops.i2c_gate_ctrl)
1041                         fe->ops.i2c_gate_ctrl(fe, 0);
1042         }
1043
1044         mutex_lock(&tuner_simple_list_mutex);
1045
1046         instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1047                                               hybrid_tuner_instance_list,
1048                                               i2c_adap, i2c_addr,
1049                                               "tuner-simple");
1050         switch (instance) {
1051         case 0:
1052                 mutex_unlock(&tuner_simple_list_mutex);
1053                 return NULL;
1054         case 1:
1055                 fe->tuner_priv = priv;
1056
1057                 priv->type = type;
1058                 priv->tun  = &tuners[type];
1059                 priv->nr   = simple_devcount++;
1060                 break;
1061         default:
1062                 fe->tuner_priv = priv;
1063                 break;
1064         }
1065
1066         mutex_unlock(&tuner_simple_list_mutex);
1067
1068         memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1069                sizeof(struct dvb_tuner_ops));
1070
1071         if (type != priv->type)
1072                 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1073                             type, priv->type, priv->tun->name);
1074         else
1075                 tuner_info("type set to %d (%s)\n",
1076                            priv->type, priv->tun->name);
1077
1078         if ((debug) || ((atv_input[priv->nr] > 0) ||
1079                         (dtv_input[priv->nr] > 0))) {
1080                 if (0 == atv_input[priv->nr])
1081                         tuner_info("tuner %d atv rf input will be "
1082                                    "autoselected\n", priv->nr);
1083                 else
1084                         tuner_info("tuner %d atv rf input will be "
1085                                    "set to input %d (insmod option)\n",
1086                                    priv->nr, atv_input[priv->nr]);
1087                 if (0 == dtv_input[priv->nr])
1088                         tuner_info("tuner %d dtv rf input will be "
1089                                    "autoselected\n", priv->nr);
1090                 else
1091                         tuner_info("tuner %d dtv rf input will be "
1092                                    "set to input %d (insmod option)\n",
1093                                    priv->nr, dtv_input[priv->nr]);
1094         }
1095
1096         strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1097                 sizeof(fe->ops.tuner_ops.info.name));
1098
1099         return fe;
1100 }
1101 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1102
1103 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1104 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1105 MODULE_LICENSE("GPL");
1106
1107 /*
1108  * Overrides for Emacs so that we follow Linus's tabbing style.
1109  * ---------------------------------------------------------------------------
1110  * Local variables:
1111  * c-basic-offset: 8
1112  * End:
1113  */