err.no Git - linux-2.6/blob - drivers/media/video/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 PREFIX "tuner-simple"
  21
  22 static int offset;
  23 module_param(offset, int, 0664);
  24 MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");
  25
  26 /* ---------------------------------------------------------------------- */
  27
  28 /* tv standard selection for Temic 4046 FM5
  29    this value takes the low bits of control byte 2
  30    from datasheet Rev.01, Feb.00
  31      standard     BG      I       L       L2      D
  32      picture IF   38.9    38.9    38.9    33.95   38.9
  33      sound 1      33.4    32.9    32.4    40.45   32.4
  34      sound 2      33.16
  35      NICAM        33.05   32.348  33.05           33.05
  36  */
  37 #define TEMIC_SET_PAL_I         0x05
  38 #define TEMIC_SET_PAL_DK        0x09
  39 #define TEMIC_SET_PAL_L         0x0a /* SECAM ? */
  40 #define TEMIC_SET_PAL_L2        0x0b /* change IF ! */
  41 #define TEMIC_SET_PAL_BG        0x0c
  42
  43 /* tv tuner system standard selection for Philips FQ1216ME
  44    this value takes the low bits of control byte 2
  45    from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
  46      standard           BG      DK      I       L       L`
  47      picture carrier    38.90   38.90   38.90   38.90   33.95
  48      colour             34.47   34.47   34.47   34.47   38.38
  49      sound 1            33.40   32.40   32.90   32.40   40.45
  50      sound 2            33.16   -       -       -       -
  51      NICAM              33.05   33.05   32.35   33.05   39.80
  52  */
  53 #define PHILIPS_SET_PAL_I       0x01 /* Bit 2 always zero !*/
  54 #define PHILIPS_SET_PAL_BGDK    0x09
  55 #define PHILIPS_SET_PAL_L2      0x0a
  56 #define PHILIPS_SET_PAL_L       0x0b
  57
  58 /* system switching for Philips FI1216MF MK2
  59    from datasheet "1996 Jul 09",
  60     standard         BG     L      L'
  61     picture carrier  38.90  38.90  33.95
  62     colour           34.47  34.37  38.38
  63     sound 1          33.40  32.40  40.45
  64     sound 2          33.16  -      -
  65     NICAM            33.05  33.05  39.80
  66  */
  67 #define PHILIPS_MF_SET_STD_BG   0x01 /* Bit 2 must be zero, Bit 3 is system output */
  68 #define PHILIPS_MF_SET_STD_L    0x03 /* Used on Secam France */
  69 #define PHILIPS_MF_SET_STD_LC   0x02 /* Used on SECAM L' */
  70
  71 /* Control byte */
  72
  73 #define TUNER_RATIO_MASK        0x06 /* Bit cb1:cb2 */
  74 #define TUNER_RATIO_SELECT_50   0x00
  75 #define TUNER_RATIO_SELECT_32   0x02
  76 #define TUNER_RATIO_SELECT_166  0x04
  77 #define TUNER_RATIO_SELECT_62   0x06
  78
  79 #define TUNER_CHARGE_PUMP       0x40  /* Bit cb6 */
  80
  81 /* Status byte */
  82
  83 #define TUNER_POR         0x80
  84 #define TUNER_FL          0x40
  85 #define TUNER_MODE        0x38
  86 #define TUNER_AFC         0x07
  87 #define TUNER_SIGNAL      0x07
  88 #define TUNER_STEREO      0x10
  89
  90 #define TUNER_PLL_LOCKED   0x40
  91 #define TUNER_STEREO_MK3   0x04
  92
  93 struct tuner_simple_priv {
  94         u16 last_div;
  95         struct tuner_i2c_props i2c_props;
  96
  97         unsigned int type;
  98         struct tunertype *tun;
  99
 100         u32 frequency;
 101 };
 102
 103 /* ---------------------------------------------------------------------- */
 104
 105 static int tuner_read_status(struct dvb_frontend *fe)
 106 {
 107         struct tuner_simple_priv *priv = fe->tuner_priv;
 108         unsigned char byte;
 109
 110         if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))
 111                 return 0;
 112
 113         return byte;
 114 }
 115
 116 static inline int tuner_signal(const int status)
 117 {
 118         return (status & TUNER_SIGNAL) << 13;
 119 }
 120
 121 static inline int tuner_stereo(const int type, const int status)
 122 {
 123         switch (type) {
 124         case TUNER_PHILIPS_FM1216ME_MK3:
 125         case TUNER_PHILIPS_FM1236_MK3:
 126         case TUNER_PHILIPS_FM1256_IH3:
 127         case TUNER_LG_NTSC_TAPE:
 128                 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
 129         default:
 130                 return status & TUNER_STEREO;
 131         }
 132 }
 133
 134 static inline int tuner_islocked(const int status)
 135 {
 136         return (status & TUNER_FL);
 137 }
 138
 139 static inline int tuner_afcstatus(const int status)
 140 {
 141         return (status & TUNER_AFC) - 2;
 142 }
 143
 144
 145 static int simple_get_status(struct dvb_frontend *fe, u32 *status)
 146 {
 147         struct tuner_simple_priv *priv = fe->tuner_priv;
 148         int tuner_status = tuner_read_status(fe);
 149
 150         *status = 0;
 151
 152         if (tuner_islocked(tuner_status))
 153                 *status = TUNER_STATUS_LOCKED;
 154         if (tuner_stereo(priv->type, tuner_status))
 155                 *status |= TUNER_STATUS_STEREO;
 156
 157         tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
 158
 159         return 0;
 160 }
 161
 162 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
 163 {
 164         struct tuner_simple_priv *priv = fe->tuner_priv;
 165         int signal = tuner_signal(tuner_read_status(fe));
 166
 167         *strength = signal;
 168
 169         tuner_dbg("Signal strength: %d\n", signal);
 170
 171         return 0;
 172 }
 173
 174 /* ---------------------------------------------------------------------- */
 175
 176 static inline char *tuner_param_name(enum param_type type)
 177 {
 178         char *name;
 179
 180         switch (type) {
 181         case TUNER_PARAM_TYPE_RADIO:
 182                 name = "radio";
 183                 break;
 184         case TUNER_PARAM_TYPE_PAL:
 185                 name = "pal";
 186                 break;
 187         case TUNER_PARAM_TYPE_SECAM:
 188                 name = "secam";
 189                 break;
 190         case TUNER_PARAM_TYPE_NTSC:
 191                 name = "ntsc";
 192                 break;
 193         default:
 194                 name = "unknown";
 195                 break;
 196         }
 197         return name;
 198 }
 199
 200 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
 201                                                 enum param_type desired_type)
 202 {
 203         struct tuner_simple_priv *priv = fe->tuner_priv;
 204         struct tunertype *tun = priv->tun;
 205         int i;
 206
 207         for (i = 0; i < tun->count; i++)
 208                 if (desired_type == tun->params[i].type)
 209                         break;
 210
 211         /* use default tuner params if desired_type not available */
 212         if (i == tun->count) {
 213                 tuner_dbg("desired params (%s) undefined for tuner %d\n",
 214                           tuner_param_name(desired_type), priv->type);
 215                 i = 0;
 216         }
 217
 218         tuner_dbg("using tuner params #%d (%s)\n", i,
 219                   tuner_param_name(tun->params[i].type));
 220
 221         return &tun->params[i];
 222 }
 223
 224 static int simple_config_lookup(struct dvb_frontend *fe,
 225                                 struct tuner_params *t_params,
 226                                 int *frequency, u8 *config, u8 *cb)
 227 {
 228         struct tuner_simple_priv *priv = fe->tuner_priv;
 229         int i;
 230
 231         for (i = 0; i < t_params->count; i++) {
 232                 if (*frequency > t_params->ranges[i].limit)
 233                         continue;
 234                 break;
 235         }
 236         if (i == t_params->count) {
 237                 tuner_dbg("frequency out of range (%d > %d)\n",
 238                           *frequency, t_params->ranges[i - 1].limit);
 239                 *frequency = t_params->ranges[--i].limit;
 240         }
 241         *config = t_params->ranges[i].config;
 242         *cb     = t_params->ranges[i].cb;
 243
 244         tuner_dbg("freq = %d.%02d (%d), range = %d, "
 245                   "config = 0x%02x, cb = 0x%02x\n",
 246                   *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
 247                   i, *config, *cb);
 248
 249         return i;
 250 }
 251
 252 /* ---------------------------------------------------------------------- */
 253
 254 static int simple_set_tv_freq(struct dvb_frontend *fe,
 255                               struct analog_parameters *params)
 256 {
 257         struct tuner_simple_priv *priv = fe->tuner_priv;
 258         u8 config, cb, tuneraddr;
 259         u16 div;
 260         struct tunertype *tun;
 261         u8 buffer[4];
 262         int rc, IFPCoff, i;
 263         enum param_type desired_type;
 264         struct tuner_params *t_params;
 265
 266         tun = priv->tun;
 267
 268         /* IFPCoff = Video Intermediate Frequency - Vif:
 269                 940  =16*58.75  NTSC/J (Japan)
 270                 732  =16*45.75  M/N STD
 271                 704  =16*44     ATSC (at DVB code)
 272                 632  =16*39.50  I U.K.
 273                 622.4=16*38.90  B/G D/K I, L STD
 274                 592  =16*37.00  D China
 275                 590  =16.36.875 B Australia
 276                 543.2=16*33.95  L' STD
 277                 171.2=16*10.70  FM Radio (at set_radio_freq)
 278         */
 279
 280         if (params->std == V4L2_STD_NTSC_M_JP) {
 281                 IFPCoff      = 940;
 282                 desired_type = TUNER_PARAM_TYPE_NTSC;
 283         } else if ((params->std & V4L2_STD_MN) &&
 284                   !(params->std & ~V4L2_STD_MN)) {
 285                 IFPCoff      = 732;
 286                 desired_type = TUNER_PARAM_TYPE_NTSC;
 287         } else if (params->std == V4L2_STD_SECAM_LC) {
 288                 IFPCoff      = 543;
 289                 desired_type = TUNER_PARAM_TYPE_SECAM;
 290         } else {
 291                 IFPCoff      = 623;
 292                 desired_type = TUNER_PARAM_TYPE_PAL;
 293         }
 294
 295         t_params = simple_tuner_params(fe, desired_type);
 296
 297         i = simple_config_lookup(fe, t_params, &params->frequency,
 298                                  &config, &cb);
 299
 300         div = params->frequency + IFPCoff + offset;
 301
 302         tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
 303                   "Offset=%d.%02d MHz, div=%0d\n",
 304                   params->frequency / 16, params->frequency % 16 * 100 / 16,
 305                   IFPCoff / 16, IFPCoff % 16 * 100 / 16,
 306                   offset / 16, offset % 16 * 100 / 16, div);
 307
 308         /* tv norm specific stuff for multi-norm tuners */
 309         switch (priv->type) {
 310         case TUNER_PHILIPS_SECAM: /* FI1216MF */
 311                 /* 0x01 -> ??? no change ??? */
 312                 /* 0x02 -> PAL BDGHI / SECAM L */
 313                 /* 0x04 -> ??? PAL others / SECAM others ??? */
 314                 cb &= ~0x03;
 315                 if (params->std & V4L2_STD_SECAM_L)
 316                         /* also valid for V4L2_STD_SECAM */
 317                         cb |= PHILIPS_MF_SET_STD_L;
 318                 else if (params->std & V4L2_STD_SECAM_LC)
 319                         cb |= PHILIPS_MF_SET_STD_LC;
 320                 else /* V4L2_STD_B|V4L2_STD_GH */
 321                         cb |= PHILIPS_MF_SET_STD_BG;
 322                 break;
 323
 324         case TUNER_TEMIC_4046FM5:
 325                 cb &= ~0x0f;
 326
 327                 if (params->std & V4L2_STD_PAL_BG) {
 328                         cb |= TEMIC_SET_PAL_BG;
 329
 330                 } else if (params->std & V4L2_STD_PAL_I) {
 331                         cb |= TEMIC_SET_PAL_I;
 332
 333                 } else if (params->std & V4L2_STD_PAL_DK) {
 334                         cb |= TEMIC_SET_PAL_DK;
 335
 336                 } else if (params->std & V4L2_STD_SECAM_L) {
 337                         cb |= TEMIC_SET_PAL_L;
 338
 339                 }
 340                 break;
 341
 342         case TUNER_PHILIPS_FQ1216ME:
 343                 cb &= ~0x0f;
 344
 345                 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
 346                         cb |= PHILIPS_SET_PAL_BGDK;
 347
 348                 } else if (params->std & V4L2_STD_PAL_I) {
 349                         cb |= PHILIPS_SET_PAL_I;
 350
 351                 } else if (params->std & V4L2_STD_SECAM_L) {
 352                         cb |= PHILIPS_SET_PAL_L;
 353
 354                 }
 355                 break;
 356
 357         case TUNER_PHILIPS_ATSC:
 358                 /* 0x00 -> ATSC antenna input 1 */
 359                 /* 0x01 -> ATSC antenna input 2 */
 360                 /* 0x02 -> NTSC antenna input 1 */
 361                 /* 0x03 -> NTSC antenna input 2 */
 362                 cb &= ~0x03;
 363                 if (!(params->std & V4L2_STD_ATSC))
 364                         cb |= 2;
 365                 /* FIXME: input */
 366                 break;
 367
 368         case TUNER_MICROTUNE_4042FI5:
 369                 /* Set the charge pump for fast tuning */
 370                 config |= TUNER_CHARGE_PUMP;
 371                 break;
 372
 373         case TUNER_PHILIPS_TUV1236D:
 374                 /* 0x40 -> ATSC antenna input 1 */
 375                 /* 0x48 -> ATSC antenna input 2 */
 376                 /* 0x00 -> NTSC antenna input 1 */
 377                 /* 0x08 -> NTSC antenna input 2 */
 378                 buffer[0] = 0x14;
 379                 buffer[1] = 0x00;
 380                 buffer[2] = 0x17;
 381                 buffer[3] = 0x00;
 382                 cb &= ~0x40;
 383                 if (params->std & V4L2_STD_ATSC) {
 384                         cb |= 0x40;
 385                         buffer[1] = 0x04;
 386                 }
 387                 /* set to the correct mode (analog or digital) */
 388                 tuneraddr = priv->i2c_props.addr;
 389                 priv->i2c_props.addr = 0x0a;
 390                 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[0], 2);
 391                 if (2 != rc)
 392                         tuner_warn("i2c i/o error: rc == %d "
 393                                    "(should be 2)\n", rc);
 394                 rc = tuner_i2c_xfer_send(&priv->i2c_props, &buffer[2], 2);
 395                 if (2 != rc)
 396                         tuner_warn("i2c i/o error: rc == %d "
 397                                    "(should be 2)\n", rc);
 398                 priv->i2c_props.addr = tuneraddr;
 399                 /* FIXME: input */
 400                 break;
 401         }
 402
 403         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 404                 buffer[0] = config;
 405                 buffer[1] = cb;
 406                 buffer[2] = (div>>8) & 0x7f;
 407                 buffer[3] = div      & 0xff;
 408         } else {
 409                 buffer[0] = (div>>8) & 0x7f;
 410                 buffer[1] = div      & 0xff;
 411                 buffer[2] = config;
 412                 buffer[3] = cb;
 413         }
 414         priv->last_div = div;
 415         if (t_params->has_tda9887) {
 416                 struct v4l2_priv_tun_config tda9887_cfg;
 417                 int config = 0;
 418                 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
 419                                                  V4L2_STD_SECAM_LC)) &&
 420                         !(params->std & ~(V4L2_STD_SECAM_L |
 421                                           V4L2_STD_SECAM_LC));
 422
 423                 tda9887_cfg.tuner = TUNER_TDA9887;
 424                 tda9887_cfg.priv  = &config;
 425
 426                 if (params->std == V4L2_STD_SECAM_LC) {
 427                         if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
 428                                 config |= TDA9887_PORT1_ACTIVE;
 429                         if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
 430                                 config |= TDA9887_PORT2_ACTIVE;
 431                 } else {
 432                         if (t_params->port1_active)
 433                                 config |= TDA9887_PORT1_ACTIVE;
 434                         if (t_params->port2_active)
 435                                 config |= TDA9887_PORT2_ACTIVE;
 436                 }
 437                 if (t_params->intercarrier_mode)
 438                         config |= TDA9887_INTERCARRIER;
 439                 if (is_secam_l) {
 440                         if (i == 0 && t_params->default_top_secam_low)
 441                                 config |= TDA9887_TOP(t_params->default_top_secam_low);
 442                         else if (i == 1 && t_params->default_top_secam_mid)
 443                                 config |= TDA9887_TOP(t_params->default_top_secam_mid);
 444                         else if (t_params->default_top_secam_high)
 445                                 config |= TDA9887_TOP(t_params->default_top_secam_high);
 446                 } else {
 447                         if (i == 0 && t_params->default_top_low)
 448                                 config |= TDA9887_TOP(t_params->default_top_low);
 449                         else if (i == 1 && t_params->default_top_mid)
 450                                 config |= TDA9887_TOP(t_params->default_top_mid);
 451                         else if (t_params->default_top_high)
 452                                 config |= TDA9887_TOP(t_params->default_top_high);
 453                 }
 454                 if (t_params->default_pll_gating_18)
 455                         config |= TDA9887_GATING_18;
 456                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 457                                     &tda9887_cfg);
 458         }
 459         tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 460                   buffer[0], buffer[1], buffer[2], buffer[3]);
 461
 462         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 463         if (4 != rc)
 464                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 465
 466         switch (priv->type) {
 467         case TUNER_LG_TDVS_H06XF:
 468                 /* Set the Auxiliary Byte. */
 469                 buffer[0] = buffer[2];
 470                 buffer[0] &= ~0x20;
 471                 buffer[0] |= 0x18;
 472                 buffer[1] = 0x20;
 473                 tuner_dbg("tv 0x%02x 0x%02x\n", buffer[0], buffer[1]);
 474
 475                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
 476                 if (2 != rc)
 477                         tuner_warn("i2c i/o error: rc == %d "
 478                                    "(should be 2)\n", rc);
 479                 break;
 480         case TUNER_MICROTUNE_4042FI5:
 481         {
 482                 /* FIXME - this may also work for other tuners */
 483                 unsigned long timeout = jiffies + msecs_to_jiffies(1);
 484                 u8 status_byte = 0;
 485
 486                 /* Wait until the PLL locks */
 487                 for (;;) {
 488                         if (time_after(jiffies, timeout))
 489                                 return 0;
 490                         rc = tuner_i2c_xfer_recv(&priv->i2c_props,
 491                                                  &status_byte, 1);
 492                         if (1 != rc) {
 493                                 tuner_warn("i2c i/o read error: rc == %d "
 494                                            "(should be 1)\n", rc);
 495                                 break;
 496                         }
 497                         if (status_byte & TUNER_PLL_LOCKED)
 498                                 break;
 499                         udelay(10);
 500                 }
 501
 502                 /* Set the charge pump for optimized phase noise figure */
 503                 config &= ~TUNER_CHARGE_PUMP;
 504                 buffer[0] = (div>>8) & 0x7f;
 505                 buffer[1] = div      & 0xff;
 506                 buffer[2] = config;
 507                 buffer[3] = cb;
 508                 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 509                           buffer[0], buffer[1], buffer[2], buffer[3]);
 510
 511                 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 512                 if (4 != rc)
 513                         tuner_warn("i2c i/o error: rc == %d "
 514                                    "(should be 4)\n", rc);
 515                 break;
 516         }
 517         }
 518         return 0;
 519 }
 520
 521 static int simple_set_radio_freq(struct dvb_frontend *fe,
 522                                  struct analog_parameters *params)
 523 {
 524         struct tunertype *tun;
 525         struct tuner_simple_priv *priv = fe->tuner_priv;
 526         u8 buffer[4];
 527         u16 div;
 528         int rc, j;
 529         struct tuner_params *t_params;
 530         unsigned int freq = params->frequency;
 531
 532         tun = priv->tun;
 533
 534         for (j = tun->count-1; j > 0; j--)
 535                 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
 536                         break;
 537         /* default t_params (j=0) will be used if desired type wasn't found */
 538         t_params = &tun->params[j];
 539
 540         /* Select Radio 1st IF used */
 541         switch (t_params->radio_if) {
 542         case 0: /* 10.7 MHz */
 543                 freq += (unsigned int)(10.7*16000);
 544                 break;
 545         case 1: /* 33.3 MHz */
 546                 freq += (unsigned int)(33.3*16000);
 547                 break;
 548         case 2: /* 41.3 MHz */
 549                 freq += (unsigned int)(41.3*16000);
 550                 break;
 551         default:
 552                 tuner_warn("Unsupported radio_if value %d\n",
 553                            t_params->radio_if);
 554                 return 0;
 555         }
 556
 557         /* Bandswitch byte */
 558         switch (priv->type) {
 559         case TUNER_TENA_9533_DI:
 560         case TUNER_YMEC_TVF_5533MF:
 561                 tuner_dbg("This tuner doesn't have FM. "
 562                           "Most cards have a TEA5767 for FM\n");
 563                 return 0;
 564         case TUNER_PHILIPS_FM1216ME_MK3:
 565         case TUNER_PHILIPS_FM1236_MK3:
 566         case TUNER_PHILIPS_FMD1216ME_MK3:
 567         case TUNER_LG_NTSC_TAPE:
 568         case TUNER_PHILIPS_FM1256_IH3:
 569                 buffer[3] = 0x19;
 570                 break;
 571         case TUNER_TNF_5335MF:
 572                 buffer[3] = 0x11;
 573                 break;
 574         case TUNER_LG_PAL_FM:
 575                 buffer[3] = 0xa5;
 576                 break;
 577         case TUNER_THOMSON_DTT761X:
 578                 buffer[3] = 0x39;
 579                 break;
 580         case TUNER_MICROTUNE_4049FM5:
 581         default:
 582                 buffer[3] = 0xa4;
 583                 break;
 584         }
 585
 586         buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
 587                     TUNER_RATIO_SELECT_50; /* 50 kHz step */
 588
 589         /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
 590            freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
 591            freq * (1/800) */
 592         div = (freq + 400) / 800;
 593
 594         if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 595                 buffer[0] = buffer[2];
 596                 buffer[1] = buffer[3];
 597                 buffer[2] = (div>>8) & 0x7f;
 598                 buffer[3] = div      & 0xff;
 599         } else {
 600                 buffer[0] = (div>>8) & 0x7f;
 601                 buffer[1] = div      & 0xff;
 602         }
 603
 604         tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
 605                buffer[0], buffer[1], buffer[2], buffer[3]);
 606         priv->last_div = div;
 607
 608         if (t_params->has_tda9887) {
 609                 int config = 0;
 610                 struct v4l2_priv_tun_config tda9887_cfg;
 611
 612                 tda9887_cfg.tuner = TUNER_TDA9887;
 613                 tda9887_cfg.priv = &config;
 614
 615                 if (t_params->port1_active &&
 616                     !t_params->port1_fm_high_sensitivity)
 617                         config |= TDA9887_PORT1_ACTIVE;
 618                 if (t_params->port2_active &&
 619                     !t_params->port2_fm_high_sensitivity)
 620                         config |= TDA9887_PORT2_ACTIVE;
 621                 if (t_params->intercarrier_mode)
 622                         config |= TDA9887_INTERCARRIER;
 623 /*              if (t_params->port1_set_for_fm_mono)
 624                         config &= ~TDA9887_PORT1_ACTIVE;*/
 625                 if (t_params->fm_gain_normal)
 626                         config |= TDA9887_GAIN_NORMAL;
 627                 if (t_params->radio_if == 2)
 628                         config |= TDA9887_RIF_41_3;
 629                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 630                                     &tda9887_cfg);
 631         }
 632         rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 633         if (4 != rc)
 634                 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 635
 636         return 0;
 637 }
 638
 639 static int simple_set_params(struct dvb_frontend *fe,
 640                              struct analog_parameters *params)
 641 {
 642         struct tuner_simple_priv *priv = fe->tuner_priv;
 643         int ret = -EINVAL;
 644
 645         switch (params->mode) {
 646         case V4L2_TUNER_RADIO:
 647                 ret = simple_set_radio_freq(fe, params);
 648                 priv->frequency = params->frequency * 125 / 2;
 649                 break;
 650         case V4L2_TUNER_ANALOG_TV:
 651         case V4L2_TUNER_DIGITAL_TV:
 652                 ret = simple_set_tv_freq(fe, params);
 653                 priv->frequency = params->frequency * 62500;
 654                 break;
 655         }
 656
 657         return ret;
 658 }
 659
 660
 661 static int simple_release(struct dvb_frontend *fe)
 662 {
 663         kfree(fe->tuner_priv);
 664         fe->tuner_priv = NULL;
 665
 666         return 0;
 667 }
 668
 669 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 670 {
 671         struct tuner_simple_priv *priv = fe->tuner_priv;
 672         *frequency = priv->frequency;
 673         return 0;
 674 }
 675
 676 static struct dvb_tuner_ops simple_tuner_ops = {
 677         .set_analog_params = simple_set_params,
 678         .release           = simple_release,
 679         .get_frequency     = simple_get_frequency,
 680         .get_status        = simple_get_status,
 681         .get_rf_strength   = simple_get_rf_strength,
 682 };
 683
 684 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
 685                                          struct i2c_adapter *i2c_adap,
 686                                          u8 i2c_addr,
 687                                          struct simple_tuner_config *cfg)
 688 {
 689         struct tuner_simple_priv *priv = NULL;
 690
 691         if (type >= tuner_count) {
 692                 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
 693                        __FUNCTION__, type, tuner_count-1);
 694                 return NULL;
 695         }
 696
 697         priv = kzalloc(sizeof(struct tuner_simple_priv), GFP_KERNEL);
 698         if (priv == NULL)
 699                 return NULL;
 700         fe->tuner_priv = priv;
 701
 702         priv->i2c_props.addr = i2c_addr;
 703         priv->i2c_props.adap = i2c_adap;
 704         priv->type = cfg->type;
 705         priv->tun  = cfg->tun;
 706
 707         memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
 708                sizeof(struct dvb_tuner_ops));
 709
 710         tuner_info("type set to %d (%s)\n", cfg->type, cfg->tun->name);
 711
 712         strlcpy(fe->ops.tuner_ops.info.name, cfg->tun->name,
 713                 sizeof(fe->ops.tuner_ops.info.name));
 714
 715         return fe;
 716 }
 717 EXPORT_SYMBOL_GPL(simple_tuner_attach);
 718
 719 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
 720 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
 721 MODULE_LICENSE("GPL");
 722
 723 /*
 724  * Overrides for Emacs so that we follow Linus's tabbing style.
 725  * ---------------------------------------------------------------------------
 726  * Local variables:
 727  * c-basic-offset: 8
 728  * End:
 729  */