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/videodev.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                 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
 146         default:
 147                 return status & TUNER_STEREO;
 148         }
 149 }
 150
 151 static inline int tuner_islocked(const int status)
 152 {
 153         return (status & TUNER_FL);
 154 }
 155
 156 static inline int tuner_afcstatus(const int status)
 157 {
 158         return (status & TUNER_AFC) - 2;
 159 }
 160
 161
 162 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
 163 {
 164         struct tuner_simple_priv *priv = fe->tuner_priv;
 165         int tuner_status;
 166
 167         if (priv->i2c_props.adap == NULL)
 168                 return -EINVAL;
 169
 170         tuner_status = tuner_read_status(fe);
 171
 172         *status = 0;
 173
 174         if (tuner_islocked(tuner_status))
 175                 *status = TUNER_STATUS_LOCKED;
 176         if (tuner_stereo(priv->type, tuner_status))
 177                 *status |= TUNER_STATUS_STEREO;
 178
 179         tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
 180
 181         return 0;
 182 }
 183
 184 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
 185 {
 186         struct tuner_simple_priv *priv = fe->tuner_priv;
 187         int signal;
 188
 189         if (priv->i2c_props.adap == NULL)
 190                 return -EINVAL;
 191
 192         signal = tuner_signal(tuner_read_status(fe));
 193
 194         *strength = signal;
 195
 196         tuner_dbg("Signal strength: %d\n", signal);
 197
 198         return 0;
 199 }
 200
 201 /* ---------------------------------------------------------------------- */
 202
 203 static inline char *tuner_param_name(enum param_type type)
 204 {
 205         char *name;
 206
 207         switch (type) {
 208         case TUNER_PARAM_TYPE_RADIO:
 209                 name = "radio";
 210                 break;
 211         case TUNER_PARAM_TYPE_PAL:
 212                 name = "pal";
 213                 break;
 214         case TUNER_PARAM_TYPE_SECAM:
 215                 name = "secam";
 216                 break;
 217         case TUNER_PARAM_TYPE_NTSC:
 218                 name = "ntsc";
 219                 break;
 220         case TUNER_PARAM_TYPE_DIGITAL:
 221                 name = "digital";
 222                 break;
 223         default:
 224                 name = "unknown";
 225                 break;
 226         }
 227         return name;
 228 }
 229
 230 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
 231                                                 enum param_type desired_type)
 232 {
 233         struct tuner_simple_priv *priv = fe->tuner_priv;
 234         struct tunertype *tun = priv->tun;
 235         int i;
 236
 237         for (i = 0; i < tun->count; i++)
 238                 if (desired_type == tun->params[i].type)
 239                         break;
 240
 241         /* use default tuner params if desired_type not available */
 242         if (i == tun->count) {
 243                 tuner_dbg("desired params (%s) undefined for tuner %d\n",
 244                           tuner_param_name(desired_type), priv->type);
 245                 i = 0;
 246         }
 247
 248         tuner_dbg("using tuner params #%d (%s)\n", i,
 249                   tuner_param_name(tun->params[i].type));
 250
 251         return &tun->params[i];
 252 }
 253
 254 static int simple_config_lookup(struct dvb_frontend *fe,
 255                                 struct tuner_params *t_params,
 256                                 int *frequency, u8 *config, u8 *cb)
 257 {
 258         struct tuner_simple_priv *priv = fe->tuner_priv;
 259         int i;
 260
 261         for (i = 0; i < t_params->count; i++) {
 262                 if (*frequency > t_params->ranges[i].limit)
 263                         continue;
 264                 break;
 265         }
 266         if (i == t_params->count) {
 267                 tuner_dbg("frequency out of range (%d > %d)\n",
 268                           *frequency, t_params->ranges[i - 1].limit);
 269                 *frequency = t_params->ranges[--i].limit;
 270         }
 271         *config = t_params->ranges[i].config;
 272         *cb     = t_params->ranges[i].cb;
 273
 274         tuner_dbg("freq = %d.%02d (%d), range = %d, "
 275                   "config = 0x%02x, cb = 0x%02x\n",
 276                   *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
 277                   i, *config, *cb);
 278
 279         return i;
 280 }
 281
 282 /* ---------------------------------------------------------------------- */
 283
 284 static void simple_set_rf_input(struct dvb_frontend *fe,
 285                                 u8 *config, u8 *cb, unsigned int rf)
 286 {
 287         struct tuner_simple_priv *priv = fe->tuner_priv;
 288
 289         switch (priv->type) {
 290         case TUNER_PHILIPS_TUV1236D:
 291                 switch (rf) {
 292                 case 1:
 293                         *cb |= 0x08;
 294                         break;
 295                 default:
 296                         *cb &= ~0x08;
 297                         break;
 298                 }
 299                 break;
 300         case TUNER_PHILIPS_FCV1236D:
 301                 switch (rf) {
 302                 case 1:
 303                         *cb |= 0x01;
 304                         break;
 305                 default:
 306                         *cb &= ~0x01;
 307                         break;
 308                 }
 309                 break;
 310         default:
 311                 break;
 312         }
 313 }
 314
 315 static int simple_std_setup(struct dvb_frontend *fe,
 316                             struct analog_parameters *params,
 317                             u8 *config, u8 *cb)
 318 {
 319         struct tuner_simple_priv *priv = fe->tuner_priv;
 320         u8 tuneraddr;
 321         int rc;
 322
 323         /* tv norm specific stuff for multi-norm tuners */
 324         switch (priv->type) {
 325         case TUNER_PHILIPS_SECAM: /* FI1216MF */
 326                 /* 0x01 -> ??? no change ??? */
 327                 /* 0x02 -> PAL BDGHI / SECAM L */
 328                 /* 0x04 -> ??? PAL others / SECAM others ??? */
 329                 *cb &= ~0x03;
 330                 if (params->std & V4L2_STD_SECAM_L)
 331                         /* also valid for V4L2_STD_SECAM */
 332                         *cb |= PHILIPS_MF_SET_STD_L;
 333                 else if (params->std & V4L2_STD_SECAM_LC)
 334                         *cb |= PHILIPS_MF_SET_STD_LC;
 335                 else /* V4L2_STD_B|V4L2_STD_GH */
 336                         *cb |= PHILIPS_MF_SET_STD_BG;
 337                 break;
 338
 339         case TUNER_TEMIC_4046FM5:
 340                 *cb &= ~0x0f;
 341
 342                 if (params->std & V4L2_STD_PAL_BG) {
 343                         *cb |= TEMIC_SET_PAL_BG;
 344
 345                 } else if (params->std & V4L2_STD_PAL_I) {
 346                         *cb |= TEMIC_SET_PAL_I;
 347
 348                 } else if (params->std & V4L2_STD_PAL_DK) {
 349                         *cb |= TEMIC_SET_PAL_DK;
 350
 351                 } else if (params->std & V4L2_STD_SECAM_L) {
 352                         *cb |= TEMIC_SET_PAL_L;
 353
 354                 }
 355                 break;
 356
 357         case TUNER_PHILIPS_FQ1216ME:
 358                 *cb &= ~0x0f;
 359
 360                 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
 361                         *cb |= PHILIPS_SET_PAL_BGDK;
 362
 363                 } else if (params->std & V4L2_STD_PAL_I) {
 364                         *cb |= PHILIPS_SET_PAL_I;
 365
 366                 } else if (params->std & V4L2_STD_SECAM_L) {
 367                         *cb |= PHILIPS_SET_PAL_L;
 368
 369                 }
 370                 break;
 371
 372         case TUNER_PHILIPS_FCV1236D:
 373                 /* 0x00 -> ATSC antenna input 1 */
 374                 /* 0x01 -> ATSC antenna input 2 */
 375                 /* 0x02 -> NTSC antenna input 1 */
 376                 /* 0x03 -> NTSC antenna input 2 */
 377                 *cb &= ~0x03;
 378                 if (!(params->std & V4L2_STD_ATSC))
 379                         *cb |= 2;
 380                 break;
 381
 382         case TUNER_MICROTUNE_4042FI5:
 383                 /* Set the charge pump for fast tuning */
 384                 *config |= TUNER_CHARGE_PUMP;
 385                 break;
 386
 387         case TUNER_PHILIPS_TUV1236D:
 388         {
 389                 /* 0x40 -> ATSC antenna input 1 */
 390                 /* 0x48 -> ATSC antenna input 2 */
 391                 /* 0x00 -> NTSC antenna input 1 */
 392                 /* 0x08 -> NTSC antenna input 2 */
 393                 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
 394                 *cb &= ~0x40;
 395                 if (params->std & V4L2_STD_ATSC) {
 396                         *cb |= 0x40;
 397                         buffer[1] = 0x04;
 398                 }
 399                 /* set to the correct mode (analog or digital) */
 400                 tuneraddr = priv->i2c_props.addr;
 401                 priv->i2c_props.addr = 0x0a;
 402                 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[0], 2);
 403                 if (2 != rc)
 404                         tuner_warn("i2c i/o error: rc == %d "
 405                                    "(should be 2)\n", rc);
 406                 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[2], 2);
 407                 if (2 != rc)
 408                         tuner_warn("i2c i/o error: rc == %d "
 409                                    "(should be 2)\n", rc);
 410                 priv->i2c_props.addr = tuneraddr;
 411                 break;
 412         }
 413         }
 414         if (atv_input[priv->nr])
 415                 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
 416
 417         return 0;
 418 }
 419
 420 static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
 421                             u16 div, u8 config, u8 cb)
 422 {
 423         struct tuner_simple_priv *priv = fe->tuner_priv;
 424         int rc;
 425
 426         switch (priv->type) {
 427         case TUNER_LG_TDVS_H06XF:
 428                 /* Set the Auxiliary Byte. */
 429                 buffer[0] = buffer[2];
 430                 buffer[0] &= ~0x20;
 431                 buffer[0] |= 0x18;
 432                 buffer[1] = 0x20;
 433                 tuner_dbg("tv 0x%02x 0x%02x\n", buffer[0], buffer[1]);
 434
 435                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
 436                 if (2 != rc)
 437                         tuner_warn("i2c i/o error: rc == %d "
 438                                    "(should be 2)\n", rc);
 439                 break;
 440         case TUNER_MICROTUNE_4042FI5:
 441         {
 442                 /* FIXME - this may also work for other tuners */
 443                 unsigned long timeout = jiffies + msecs_to_jiffies(1);
 444                 u8 status_byte = 0;
 445
 446                 /* Wait until the PLL locks */
 447                 for (;;) {
 448                         if (time_after(jiffies, timeout))
 449                                 return 0;
 450                         rc = tuner_i2c_xfer_recv(&priv->i2c_props,
 451                                                  &status_byte, 1);
 452                         if (1 != rc) {
 453                                 tuner_warn("i2c i/o read error: rc == %d "
 454                                            "(should be 1)\n", rc);
 455                                 break;
 456                         }
 457                         if (status_byte & TUNER_PLL_LOCKED)
 458                                 break;
 459                         udelay(10);
 460                 }
 461
 462                 /* Set the charge pump for optimized phase noise figure */
 463                 config &= ~TUNER_CHARGE_PUMP;
 464                 buffer[0] = (div>>8) & 0x7f;
 465                 buffer[1] = div      & 0xff;
 466                 buffer[2] = config;
 467                 buffer[3] = cb;
 468                 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 469                           buffer[0], buffer[1], buffer[2], buffer[3]);
 470
 471                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 472                 if (4 != rc)
 473                         tuner_warn("i2c i/o error: rc == %d "
 474                                    "(should be 4)\n", rc);
 475                 break;
 476         }
 477         }
 478
 479         return 0;
 480 }
 481
 482 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
 483 {
 484         struct tuner_simple_priv *priv = fe->tuner_priv;
 485
 486         switch (priv->type) {
 487         case TUNER_TENA_9533_DI:
 488         case TUNER_YMEC_TVF_5533MF:
 489                 tuner_dbg("This tuner doesn't have FM. "
 490                           "Most cards have a TEA5767 for FM\n");
 491                 return 0;
 492         case TUNER_PHILIPS_FM1216ME_MK3:
 493         case TUNER_PHILIPS_FM1236_MK3:
 494         case TUNER_PHILIPS_FMD1216ME_MK3:
 495         case TUNER_LG_NTSC_TAPE:
 496         case TUNER_PHILIPS_FM1256_IH3:
 497                 buffer[3] = 0x19;
 498                 break;
 499         case TUNER_TNF_5335MF:
 500                 buffer[3] = 0x11;
 501                 break;
 502         case TUNER_LG_PAL_FM:
 503                 buffer[3] = 0xa5;
 504                 break;
 505         case TUNER_THOMSON_DTT761X:
 506                 buffer[3] = 0x39;
 507                 break;
 508         case TUNER_MICROTUNE_4049FM5:
 509         default:
 510                 buffer[3] = 0xa4;
 511                 break;
 512         }
 513
 514         return 0;
 515 }
 516
 517 /* ---------------------------------------------------------------------- */
 518
 519 static int simple_set_tv_freq(struct dvb_frontend *fe,
 520                               struct analog_parameters *params)
 521 {
 522         struct tuner_simple_priv *priv = fe->tuner_priv;
 523         u8 config, cb;
 524         u16 div;
 525         struct tunertype *tun;
 526         u8 buffer[4];
 527         int rc, IFPCoff, i;
 528         enum param_type desired_type;
 529         struct tuner_params *t_params;
 530
 531         tun = priv->tun;
 532
 533         /* IFPCoff = Video Intermediate Frequency - Vif:
 534                 940  =16*58.75  NTSC/J (Japan)
 535                 732  =16*45.75  M/N STD
 536                 704  =16*44     ATSC (at DVB code)
 537                 632  =16*39.50  I U.K.
 538                 622.4=16*38.90  B/G D/K I, L STD
 539                 592  =16*37.00  D China
 540                 590  =16.36.875 B Australia
 541                 543.2=16*33.95  L' STD
 542                 171.2=16*10.70  FM Radio (at set_radio_freq)
 543         */
 544
 545         if (params->std == V4L2_STD_NTSC_M_JP) {
 546                 IFPCoff      = 940;
 547                 desired_type = TUNER_PARAM_TYPE_NTSC;
 548         } else if ((params->std & V4L2_STD_MN) &&
 549                   !(params->std & ~V4L2_STD_MN)) {
 550                 IFPCoff      = 732;
 551                 desired_type = TUNER_PARAM_TYPE_NTSC;
 552         } else if (params->std == V4L2_STD_SECAM_LC) {
 553                 IFPCoff      = 543;
 554                 desired_type = TUNER_PARAM_TYPE_SECAM;
 555         } else {
 556                 IFPCoff      = 623;
 557                 desired_type = TUNER_PARAM_TYPE_PAL;
 558         }
 559
 560         t_params = simple_tuner_params(fe, desired_type);
 561
 562         i = simple_config_lookup(fe, t_params, &params->frequency,
 563                                  &config, &cb);
 564
 565         div = params->frequency + IFPCoff + offset;
 566
 567         tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
 568                   "Offset=%d.%02d MHz, div=%0d\n",
 569                   params->frequency / 16, params->frequency % 16 * 100 / 16,
 570                   IFPCoff / 16, IFPCoff % 16 * 100 / 16,
 571                   offset / 16, offset % 16 * 100 / 16, div);
 572
 573         /* tv norm specific stuff for multi-norm tuners */
 574         simple_std_setup(fe, params, &config, &cb);
 575
 576         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 577                 buffer[0] = config;
 578                 buffer[1] = cb;
 579                 buffer[2] = (div>>8) & 0x7f;
 580                 buffer[3] = div      & 0xff;
 581         } else {
 582                 buffer[0] = (div>>8) & 0x7f;
 583                 buffer[1] = div      & 0xff;
 584                 buffer[2] = config;
 585                 buffer[3] = cb;
 586         }
 587         priv->last_div = div;
 588         if (t_params->has_tda9887) {
 589                 struct v4l2_priv_tun_config tda9887_cfg;
 590                 int config = 0;
 591                 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
 592                                                  V4L2_STD_SECAM_LC)) &&
 593                         !(params->std & ~(V4L2_STD_SECAM_L |
 594                                           V4L2_STD_SECAM_LC));
 595
 596                 tda9887_cfg.tuner = TUNER_TDA9887;
 597                 tda9887_cfg.priv  = &config;
 598
 599                 if (params->std == V4L2_STD_SECAM_LC) {
 600                         if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
 601                                 config |= TDA9887_PORT1_ACTIVE;
 602                         if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
 603                                 config |= TDA9887_PORT2_ACTIVE;
 604                 } else {
 605                         if (t_params->port1_active)
 606                                 config |= TDA9887_PORT1_ACTIVE;
 607                         if (t_params->port2_active)
 608                                 config |= TDA9887_PORT2_ACTIVE;
 609                 }
 610                 if (t_params->intercarrier_mode)
 611                         config |= TDA9887_INTERCARRIER;
 612                 if (is_secam_l) {
 613                         if (i == 0 && t_params->default_top_secam_low)
 614                                 config |= TDA9887_TOP(t_params->default_top_secam_low);
 615                         else if (i == 1 && t_params->default_top_secam_mid)
 616                                 config |= TDA9887_TOP(t_params->default_top_secam_mid);
 617                         else if (t_params->default_top_secam_high)
 618                                 config |= TDA9887_TOP(t_params->default_top_secam_high);
 619                 } else {
 620                         if (i == 0 && t_params->default_top_low)
 621                                 config |= TDA9887_TOP(t_params->default_top_low);
 622                         else if (i == 1 && t_params->default_top_mid)
 623                                 config |= TDA9887_TOP(t_params->default_top_mid);
 624                         else if (t_params->default_top_high)
 625                                 config |= TDA9887_TOP(t_params->default_top_high);
 626                 }
 627                 if (t_params->default_pll_gating_18)
 628                         config |= TDA9887_GATING_18;
 629                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 630                                     &tda9887_cfg);
 631         }
 632         tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 633                   buffer[0], buffer[1], buffer[2], buffer[3]);
 634
 635         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 636         if (4 != rc)
 637                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 638
 639         simple_post_tune(fe, &buffer[0], div, config, cb);
 640
 641         return 0;
 642 }
 643
 644 static int simple_set_radio_freq(struct dvb_frontend *fe,
 645                                  struct analog_parameters *params)
 646 {
 647         struct tunertype *tun;
 648         struct tuner_simple_priv *priv = fe->tuner_priv;
 649         u8 buffer[4];
 650         u16 div;
 651         int rc, j;
 652         struct tuner_params *t_params;
 653         unsigned int freq = params->frequency;
 654
 655         tun = priv->tun;
 656
 657         for (j = tun->count-1; j > 0; j--)
 658                 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
 659                         break;
 660         /* default t_params (j=0) will be used if desired type wasn't found */
 661         t_params = &tun->params[j];
 662
 663         /* Select Radio 1st IF used */
 664         switch (t_params->radio_if) {
 665         case 0: /* 10.7 MHz */
 666                 freq += (unsigned int)(10.7*16000);
 667                 break;
 668         case 1: /* 33.3 MHz */
 669                 freq += (unsigned int)(33.3*16000);
 670                 break;
 671         case 2: /* 41.3 MHz */
 672                 freq += (unsigned int)(41.3*16000);
 673                 break;
 674         default:
 675                 tuner_warn("Unsupported radio_if value %d\n",
 676                            t_params->radio_if);
 677                 return 0;
 678         }
 679
 680         /* Bandswitch byte */
 681         simple_radio_bandswitch(fe, &buffer[0]);
 682
 683         buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
 684                     TUNER_RATIO_SELECT_50; /* 50 kHz step */
 685
 686         /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
 687            freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
 688            freq * (1/800) */
 689         div = (freq + 400) / 800;
 690
 691         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 692                 buffer[0] = buffer[2];
 693                 buffer[1] = buffer[3];
 694                 buffer[2] = (div>>8) & 0x7f;
 695                 buffer[3] = div      & 0xff;
 696         } else {
 697                 buffer[0] = (div>>8) & 0x7f;
 698                 buffer[1] = div      & 0xff;
 699         }
 700
 701         tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
 702                buffer[0], buffer[1], buffer[2], buffer[3]);
 703         priv->last_div = div;
 704
 705         if (t_params->has_tda9887) {
 706                 int config = 0;
 707                 struct v4l2_priv_tun_config tda9887_cfg;
 708
 709                 tda9887_cfg.tuner = TUNER_TDA9887;
 710                 tda9887_cfg.priv = &config;
 711
 712                 if (t_params->port1_active &&
 713                     !t_params->port1_fm_high_sensitivity)
 714                         config |= TDA9887_PORT1_ACTIVE;
 715                 if (t_params->port2_active &&
 716                     !t_params->port2_fm_high_sensitivity)
 717                         config |= TDA9887_PORT2_ACTIVE;
 718                 if (t_params->intercarrier_mode)
 719                         config |= TDA9887_INTERCARRIER;
 720 /*              if (t_params->port1_set_for_fm_mono)
 721                         config &= ~TDA9887_PORT1_ACTIVE;*/
 722                 if (t_params->fm_gain_normal)
 723                         config |= TDA9887_GAIN_NORMAL;
 724                 if (t_params->radio_if == 2)
 725                         config |= TDA9887_RIF_41_3;
 726                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 727                                     &tda9887_cfg);
 728         }
 729         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 730         if (4 != rc)
 731                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 732
 733         return 0;
 734 }
 735
 736 static int simple_set_params(struct dvb_frontend *fe,
 737                              struct analog_parameters *params)
 738 {
 739         struct tuner_simple_priv *priv = fe->tuner_priv;
 740         int ret = -EINVAL;
 741
 742         if (priv->i2c_props.adap == NULL)
 743                 return -EINVAL;
 744
 745         switch (params->mode) {
 746         case V4L2_TUNER_RADIO:
 747                 ret = simple_set_radio_freq(fe, params);
 748                 priv->frequency = params->frequency * 125 / 2;
 749                 break;
 750         case V4L2_TUNER_ANALOG_TV:
 751         case V4L2_TUNER_DIGITAL_TV:
 752                 ret = simple_set_tv_freq(fe, params);
 753                 priv->frequency = params->frequency * 62500;
 754                 break;
 755         }
 756         priv->bandwidth = 0;
 757
 758         return ret;
 759 }
 760
 761 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
 762                            const struct dvb_frontend_parameters *params)
 763 {
 764         struct tuner_simple_priv *priv = fe->tuner_priv;
 765
 766         switch (priv->type) {
 767         case TUNER_PHILIPS_FMD1216ME_MK3:
 768                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
 769                     params->frequency >= 158870000)
 770                         buf[3] |= 0x08;
 771                 break;
 772         case TUNER_PHILIPS_TD1316:
 773                 /* determine band */
 774                 buf[3] |= (params->frequency < 161000000) ? 1 :
 775                           (params->frequency < 444000000) ? 2 : 4;
 776
 777                 /* setup PLL filter */
 778                 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 779                         buf[3] |= 1 << 3;
 780                 break;
 781         case TUNER_PHILIPS_TUV1236D:
 782         case TUNER_PHILIPS_FCV1236D:
 783         {
 784                 unsigned int new_rf;
 785
 786                 if (dtv_input[priv->nr])
 787                         new_rf = dtv_input[priv->nr];
 788                 else
 789                         switch (params->u.vsb.modulation) {
 790                         case QAM_64:
 791                         case QAM_256:
 792                                 new_rf = 1;
 793                                 break;
 794                         case VSB_8:
 795                         default:
 796                                 new_rf = 0;
 797                                 break;
 798                         }
 799                 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
 800                 break;
 801         }
 802         default:
 803                 break;
 804         }
 805 }
 806
 807 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
 808                                 const struct dvb_frontend_parameters *params)
 809 {
 810         /* This function returns the tuned frequency on success, 0 on error */
 811         struct tuner_simple_priv *priv = fe->tuner_priv;
 812         struct tunertype *tun = priv->tun;
 813         static struct tuner_params *t_params;
 814         u8 config, cb;
 815         u32 div;
 816         int ret, frequency = params->frequency / 62500;
 817
 818         t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
 819         ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
 820         if (ret < 0)
 821                 return 0; /* failure */
 822
 823         div = ((frequency + t_params->iffreq) * 62500 + offset +
 824                tun->stepsize/2) / tun->stepsize;
 825
 826         buf[0] = div >> 8;
 827         buf[1] = div & 0xff;
 828         buf[2] = config;
 829         buf[3] = cb;
 830
 831         simple_set_dvb(fe, buf, params);
 832
 833         tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 834                   tun->name, div, buf[0], buf[1], buf[2], buf[3]);
 835
 836         /* calculate the frequency we set it to */
 837         return (div * tun->stepsize) - t_params->iffreq;
 838 }
 839
 840 static int simple_dvb_calc_regs(struct dvb_frontend *fe,
 841                                 struct dvb_frontend_parameters *params,
 842                                 u8 *buf, int buf_len)
 843 {
 844         struct tuner_simple_priv *priv = fe->tuner_priv;
 845         u32 frequency;
 846
 847         if (buf_len < 5)
 848                 return -EINVAL;
 849
 850         frequency = simple_dvb_configure(fe, buf+1, params);
 851         if (frequency == 0)
 852                 return -EINVAL;
 853
 854         buf[0] = priv->i2c_props.addr;
 855
 856         priv->frequency = frequency;
 857         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
 858                 params->u.ofdm.bandwidth : 0;
 859
 860         return 5;
 861 }
 862
 863 static int simple_dvb_set_params(struct dvb_frontend *fe,
 864                                  struct dvb_frontend_parameters *params)
 865 {
 866         struct tuner_simple_priv *priv = fe->tuner_priv;
 867         u32 prev_freq, prev_bw;
 868         int ret;
 869         u8 buf[5];
 870
 871         if (priv->i2c_props.adap == NULL)
 872                 return -EINVAL;
 873
 874         prev_freq = priv->frequency;
 875         prev_bw   = priv->bandwidth;
 876
 877         ret = simple_dvb_calc_regs(fe, params, buf, 5);
 878         if (ret != 5)
 879                 goto fail;
 880
 881         /* put analog demod in standby when tuning digital */
 882         if (fe->ops.analog_ops.standby)
 883                 fe->ops.analog_ops.standby(fe);
 884
 885         if (fe->ops.i2c_gate_ctrl)
 886                 fe->ops.i2c_gate_ctrl(fe, 1);
 887
 888         /* buf[0] contains the i2c address, but *
 889          * we already have it in i2c_props.addr */
 890         ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
 891         if (ret != 4)
 892                 goto fail;
 893
 894         return 0;
 895 fail:
 896         /* calc_regs sets frequency and bandwidth. if we failed, unset them */
 897         priv->frequency = prev_freq;
 898         priv->bandwidth = prev_bw;
 899
 900         return ret;
 901 }
 902
 903 static int simple_init(struct dvb_frontend *fe)
 904 {
 905         struct tuner_simple_priv *priv = fe->tuner_priv;
 906
 907         if (priv->i2c_props.adap == NULL)
 908                 return -EINVAL;
 909
 910         if (priv->tun->initdata) {
 911                 int ret;
 912
 913                 if (fe->ops.i2c_gate_ctrl)
 914                         fe->ops.i2c_gate_ctrl(fe, 1);
 915
 916                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 917                                           priv->tun->initdata + 1,
 918                                           priv->tun->initdata[0]);
 919                 if (ret != priv->tun->initdata[0])
 920                         return ret;
 921         }
 922
 923         return 0;
 924 }
 925
 926 static int simple_sleep(struct dvb_frontend *fe)
 927 {
 928         struct tuner_simple_priv *priv = fe->tuner_priv;
 929
 930         if (priv->i2c_props.adap == NULL)
 931                 return -EINVAL;
 932
 933         if (priv->tun->sleepdata) {
 934                 int ret;
 935
 936                 if (fe->ops.i2c_gate_ctrl)
 937                         fe->ops.i2c_gate_ctrl(fe, 1);
 938
 939                 ret = tuner_i2c_xfer_send(&priv->i2c_props,
 940                                           priv->tun->sleepdata + 1,
 941                                           priv->tun->sleepdata[0]);
 942                 if (ret != priv->tun->sleepdata[0])
 943                         return ret;
 944         }
 945
 946         return 0;
 947 }
 948
 949 static int simple_release(struct dvb_frontend *fe)
 950 {
 951         struct tuner_simple_priv *priv = fe->tuner_priv;
 952
 953         mutex_lock(&tuner_simple_list_mutex);
 954
 955         if (priv)
 956                 hybrid_tuner_release_state(priv);
 957
 958         mutex_unlock(&tuner_simple_list_mutex);
 959
 960         fe->tuner_priv = NULL;
 961
 962         return 0;
 963 }
 964
 965 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 966 {
 967         struct tuner_simple_priv *priv = fe->tuner_priv;
 968         *frequency = priv->frequency;
 969         return 0;
 970 }
 971
 972 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
 973 {
 974         struct tuner_simple_priv *priv = fe->tuner_priv;
 975         *bandwidth = priv->bandwidth;
 976         return 0;
 977 }
 978
 979 static struct dvb_tuner_ops simple_tuner_ops = {
 980         .init              = simple_init,
 981         .sleep             = simple_sleep,
 982         .set_analog_params = simple_set_params,
 983         .set_params        = simple_dvb_set_params,
 984         .calc_regs         = simple_dvb_calc_regs,
 985         .release           = simple_release,
 986         .get_frequency     = simple_get_frequency,
 987         .get_bandwidth     = simple_get_bandwidth,
 988         .get_status        = simple_get_status,
 989         .get_rf_strength   = simple_get_rf_strength,
 990 };
 991
 992 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
 993                                          struct i2c_adapter *i2c_adap,
 994                                          u8 i2c_addr,
 995                                          unsigned int type)
 996 {
 997         struct tuner_simple_priv *priv = NULL;
 998         int instance;
 999
1000         if (type >= tuner_count) {
1001                 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1002                        __func__, type, tuner_count-1);
1003                 return NULL;
1004         }
1005
1006         /* If i2c_adap is set, check that the tuner is at the correct address.
1007          * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1008          * by the digital demod via calc_regs.
1009          */
1010         if (i2c_adap != NULL) {
1011                 u8 b[1];
1012                 struct i2c_msg msg = {
1013                         .addr = i2c_addr, .flags = I2C_M_RD,
1014                         .buf = b, .len = 1,
1015                 };
1016
1017                 if (fe->ops.i2c_gate_ctrl)
1018                         fe->ops.i2c_gate_ctrl(fe, 1);
1019
1020                 if (1 != i2c_transfer(i2c_adap, &msg, 1))
1021                         printk(KERN_WARNING "tuner-simple %d-%04x: "
1022                                "unable to probe %s, proceeding anyway.",
1023                                i2c_adapter_id(i2c_adap), i2c_addr,
1024                                tuners[type].name);
1025
1026                 if (fe->ops.i2c_gate_ctrl)
1027                         fe->ops.i2c_gate_ctrl(fe, 0);
1028         }
1029
1030         mutex_lock(&tuner_simple_list_mutex);
1031
1032         instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1033                                               hybrid_tuner_instance_list,
1034                                               i2c_adap, i2c_addr,
1035                                               "tuner-simple");
1036         switch (instance) {
1037         case 0:
1038                 mutex_unlock(&tuner_simple_list_mutex);
1039                 return NULL;
1040                 break;
1041         case 1:
1042                 fe->tuner_priv = priv;
1043
1044                 priv->type = type;
1045                 priv->tun  = &tuners[type];
1046                 priv->nr   = simple_devcount++;
1047                 break;
1048         default:
1049                 fe->tuner_priv = priv;
1050                 break;
1051         }
1052
1053         mutex_unlock(&tuner_simple_list_mutex);
1054
1055         memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1056                sizeof(struct dvb_tuner_ops));
1057
1058         tuner_info("type set to %d (%s)\n", type, priv->tun->name);
1059
1060         if ((debug) || ((atv_input[priv->nr] > 0) ||
1061                         (dtv_input[priv->nr] > 0))) {
1062                 if (0 == atv_input[priv->nr])
1063                         tuner_info("tuner %d atv rf input will be "
1064                                    "autoselected\n", priv->nr);
1065                 else
1066                         tuner_info("tuner %d atv rf input will be "
1067                                    "set to input %d (insmod option)\n",
1068                                    priv->nr, atv_input[priv->nr]);
1069                 if (0 == dtv_input[priv->nr])
1070                         tuner_info("tuner %d dtv rf input will be "
1071                                    "autoselected\n", priv->nr);
1072                 else
1073                         tuner_info("tuner %d dtv rf input will be "
1074                                    "set to input %d (insmod option)\n",
1075                                    priv->nr, dtv_input[priv->nr]);
1076         }
1077
1078         strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1079                 sizeof(fe->ops.tuner_ops.info.name));
1080
1081         return fe;
1082 }
1083 EXPORT_SYMBOL_GPL(simple_tuner_attach);
1084
1085 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1086 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1087 MODULE_LICENSE("GPL");
1088
1089 /*
1090  * Overrides for Emacs so that we follow Linus's tabbing style.
1091  * ---------------------------------------------------------------------------
1092  * Local variables:
1093  * c-basic-offset: 8
1094  * End:
1095  */