linux/drivers/media/common/tuners/tuner-simple.c
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   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
  16static int debug;
  17module_param(debug, int, 0644);
  18MODULE_PARM_DESC(debug, "enable verbose debug messages");
  19
  20#define TUNER_SIMPLE_MAX 64
  21static unsigned int simple_devcount;
  22
  23static int offset;
  24module_param(offset, int, 0664);
  25MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");
  26
  27static unsigned int atv_input[TUNER_SIMPLE_MAX] = \
  28                        { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
  29static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \
  30                        { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };
  31module_param_array(atv_input, int, NULL, 0644);
  32module_param_array(dtv_input, int, NULL, 0644);
  33MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect");
  34MODULE_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
 103static DEFINE_MUTEX(tuner_simple_list_mutex);
 104static LIST_HEAD(hybrid_tuner_instance_list);
 105
 106struct 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
 122static 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
 133static inline int tuner_signal(const int status)
 134{
 135        return (status & TUNER_SIGNAL) << 13;
 136}
 137
 138static inline int tuner_stereo(const int type, const int status)
 139{
 140        switch (type) {
 141        case TUNER_PHILIPS_FM1216ME_MK3:
 142        case TUNER_PHILIPS_FM1236_MK3:
 143        case TUNER_PHILIPS_FM1256_IH3:
 144        case TUNER_LG_NTSC_TAPE:
 145        case TUNER_TCL_MF02GIP_5N:
 146                return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
 147        case TUNER_PHILIPS_FM1216MK5:
 148                return status | TUNER_STEREO;
 149        default:
 150                return status & TUNER_STEREO;
 151        }
 152}
 153
 154static inline int tuner_islocked(const int status)
 155{
 156        return (status & TUNER_FL);
 157}
 158
 159static inline int tuner_afcstatus(const int status)
 160{
 161        return (status & TUNER_AFC) - 2;
 162}
 163
 164
 165static int simple_get_status(struct dvb_frontend *fe, u32 *status)
 166{
 167        struct tuner_simple_priv *priv = fe->tuner_priv;
 168        int tuner_status;
 169
 170        if (priv->i2c_props.adap == NULL)
 171                return -EINVAL;
 172
 173        tuner_status = tuner_read_status(fe);
 174
 175        *status = 0;
 176
 177        if (tuner_islocked(tuner_status))
 178                *status = TUNER_STATUS_LOCKED;
 179        if (tuner_stereo(priv->type, tuner_status))
 180                *status |= TUNER_STATUS_STEREO;
 181
 182        tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));
 183
 184        return 0;
 185}
 186
 187static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
 188{
 189        struct tuner_simple_priv *priv = fe->tuner_priv;
 190        int signal;
 191
 192        if (priv->i2c_props.adap == NULL)
 193                return -EINVAL;
 194
 195        signal = tuner_signal(tuner_read_status(fe));
 196
 197        *strength = signal;
 198
 199        tuner_dbg("Signal strength: %d\n", signal);
 200
 201        return 0;
 202}
 203
 204/* ---------------------------------------------------------------------- */
 205
 206static inline char *tuner_param_name(enum param_type type)
 207{
 208        char *name;
 209
 210        switch (type) {
 211        case TUNER_PARAM_TYPE_RADIO:
 212                name = "radio";
 213                break;
 214        case TUNER_PARAM_TYPE_PAL:
 215                name = "pal";
 216                break;
 217        case TUNER_PARAM_TYPE_SECAM:
 218                name = "secam";
 219                break;
 220        case TUNER_PARAM_TYPE_NTSC:
 221                name = "ntsc";
 222                break;
 223        case TUNER_PARAM_TYPE_DIGITAL:
 224                name = "digital";
 225                break;
 226        default:
 227                name = "unknown";
 228                break;
 229        }
 230        return name;
 231}
 232
 233static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
 234                                                enum param_type desired_type)
 235{
 236        struct tuner_simple_priv *priv = fe->tuner_priv;
 237        struct tunertype *tun = priv->tun;
 238        int i;
 239
 240        for (i = 0; i < tun->count; i++)
 241                if (desired_type == tun->params[i].type)
 242                        break;
 243
 244        /* use default tuner params if desired_type not available */
 245        if (i == tun->count) {
 246                tuner_dbg("desired params (%s) undefined for tuner %d\n",
 247                          tuner_param_name(desired_type), priv->type);
 248                i = 0;
 249        }
 250
 251        tuner_dbg("using tuner params #%d (%s)\n", i,
 252                  tuner_param_name(tun->params[i].type));
 253
 254        return &tun->params[i];
 255}
 256
 257static int simple_config_lookup(struct dvb_frontend *fe,
 258                                struct tuner_params *t_params,
 259                                unsigned *frequency, u8 *config, u8 *cb)
 260{
 261        struct tuner_simple_priv *priv = fe->tuner_priv;
 262        int i;
 263
 264        for (i = 0; i < t_params->count; i++) {
 265                if (*frequency > t_params->ranges[i].limit)
 266                        continue;
 267                break;
 268        }
 269        if (i == t_params->count) {
 270                tuner_dbg("frequency out of range (%d > %d)\n",
 271                          *frequency, t_params->ranges[i - 1].limit);
 272                *frequency = t_params->ranges[--i].limit;
 273        }
 274        *config = t_params->ranges[i].config;
 275        *cb     = t_params->ranges[i].cb;
 276
 277        tuner_dbg("freq = %d.%02d (%d), range = %d, "
 278                  "config = 0x%02x, cb = 0x%02x\n",
 279                  *frequency / 16, *frequency % 16 * 100 / 16, *frequency,
 280                  i, *config, *cb);
 281
 282        return i;
 283}
 284
 285/* ---------------------------------------------------------------------- */
 286
 287static void simple_set_rf_input(struct dvb_frontend *fe,
 288                                u8 *config, u8 *cb, unsigned int rf)
 289{
 290        struct tuner_simple_priv *priv = fe->tuner_priv;
 291
 292        switch (priv->type) {
 293        case TUNER_PHILIPS_TUV1236D:
 294                switch (rf) {
 295                case 1:
 296                        *cb |= 0x08;
 297                        break;
 298                default:
 299                        *cb &= ~0x08;
 300                        break;
 301                }
 302                break;
 303        case TUNER_PHILIPS_FCV1236D:
 304                switch (rf) {
 305                case 1:
 306                        *cb |= 0x01;
 307                        break;
 308                default:
 309                        *cb &= ~0x01;
 310                        break;
 311                }
 312                break;
 313        default:
 314                break;
 315        }
 316}
 317
 318static int simple_std_setup(struct dvb_frontend *fe,
 319                            struct analog_parameters *params,
 320                            u8 *config, u8 *cb)
 321{
 322        struct tuner_simple_priv *priv = fe->tuner_priv;
 323        int rc;
 324
 325        /* tv norm specific stuff for multi-norm tuners */
 326        switch (priv->type) {
 327        case TUNER_PHILIPS_SECAM: /* FI1216MF */
 328                /* 0x01 -> ??? no change ??? */
 329                /* 0x02 -> PAL BDGHI / SECAM L */
 330                /* 0x04 -> ??? PAL others / SECAM others ??? */
 331                *cb &= ~0x03;
 332                if (params->std & V4L2_STD_SECAM_L)
 333                        /* also valid for V4L2_STD_SECAM */
 334                        *cb |= PHILIPS_MF_SET_STD_L;
 335                else if (params->std & V4L2_STD_SECAM_LC)
 336                        *cb |= PHILIPS_MF_SET_STD_LC;
 337                else /* V4L2_STD_B|V4L2_STD_GH */
 338                        *cb |= PHILIPS_MF_SET_STD_BG;
 339                break;
 340
 341        case TUNER_TEMIC_4046FM5:
 342                *cb &= ~0x0f;
 343
 344                if (params->std & V4L2_STD_PAL_BG) {
 345                        *cb |= TEMIC_SET_PAL_BG;
 346
 347                } else if (params->std & V4L2_STD_PAL_I) {
 348                        *cb |= TEMIC_SET_PAL_I;
 349
 350                } else if (params->std & V4L2_STD_PAL_DK) {
 351                        *cb |= TEMIC_SET_PAL_DK;
 352
 353                } else if (params->std & V4L2_STD_SECAM_L) {
 354                        *cb |= TEMIC_SET_PAL_L;
 355
 356                }
 357                break;
 358
 359        case TUNER_PHILIPS_FQ1216ME:
 360                *cb &= ~0x0f;
 361
 362                if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
 363                        *cb |= PHILIPS_SET_PAL_BGDK;
 364
 365                } else if (params->std & V4L2_STD_PAL_I) {
 366                        *cb |= PHILIPS_SET_PAL_I;
 367
 368                } else if (params->std & V4L2_STD_SECAM_L) {
 369                        *cb |= PHILIPS_SET_PAL_L;
 370
 371                }
 372                break;
 373
 374        case TUNER_PHILIPS_FCV1236D:
 375                /* 0x00 -> ATSC antenna input 1 */
 376                /* 0x01 -> ATSC antenna input 2 */
 377                /* 0x02 -> NTSC antenna input 1 */
 378                /* 0x03 -> NTSC antenna input 2 */
 379                *cb &= ~0x03;
 380                if (!(params->std & V4L2_STD_ATSC))
 381                        *cb |= 2;
 382                break;
 383
 384        case TUNER_MICROTUNE_4042FI5:
 385                /* Set the charge pump for fast tuning */
 386                *config |= TUNER_CHARGE_PUMP;
 387                break;
 388
 389        case TUNER_PHILIPS_TUV1236D:
 390        {
 391                struct tuner_i2c_props i2c = priv->i2c_props;
 392                /* 0x40 -> ATSC antenna input 1 */
 393                /* 0x48 -> ATSC antenna input 2 */
 394                /* 0x00 -> NTSC antenna input 1 */
 395                /* 0x08 -> NTSC antenna input 2 */
 396                u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};
 397                *cb &= ~0x40;
 398                if (params->std & V4L2_STD_ATSC) {
 399                        *cb |= 0x40;
 400                        buffer[1] = 0x04;
 401                }
 402                /* set to the correct mode (analog or digital) */
 403                i2c.addr = 0x0a;
 404                rc = tuner_i2c_xfer_send(&i2c, &buffer[0], 2);
 405                if (2 != rc)
 406                        tuner_warn("i2c i/o error: rc == %d "
 407                                   "(should be 2)\n", rc);
 408                rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2);
 409                if (2 != rc)
 410                        tuner_warn("i2c i/o error: rc == %d "
 411                                   "(should be 2)\n", rc);
 412                break;
 413        }
 414        }
 415        if (atv_input[priv->nr])
 416                simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);
 417
 418        return 0;
 419}
 420
 421static int simple_set_aux_byte(struct dvb_frontend *fe, u8 config, u8 aux)
 422{
 423        struct tuner_simple_priv *priv = fe->tuner_priv;
 424        int rc;
 425        u8 buffer[2];
 426
 427        buffer[0] = (config & ~0x38) | 0x18;
 428        buffer[1] = aux;
 429
 430        tuner_dbg("setting aux byte: 0x%02x 0x%02x\n", buffer[0], buffer[1]);
 431
 432        rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);
 433        if (2 != rc)
 434                tuner_warn("i2c i/o error: rc == %d (should be 2)\n", rc);
 435
 436        return rc == 2 ? 0 : rc;
 437}
 438
 439static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,
 440                            u16 div, u8 config, u8 cb)
 441{
 442        struct tuner_simple_priv *priv = fe->tuner_priv;
 443        int rc;
 444
 445        switch (priv->type) {
 446        case TUNER_LG_TDVS_H06XF:
 447                simple_set_aux_byte(fe, config, 0x20);
 448                break;
 449        case TUNER_PHILIPS_FQ1216LME_MK3:
 450                simple_set_aux_byte(fe, config, 0x60); /* External AGC */
 451                break;
 452        case TUNER_MICROTUNE_4042FI5:
 453        {
 454                /* FIXME - this may also work for other tuners */
 455                unsigned long timeout = jiffies + msecs_to_jiffies(1);
 456                u8 status_byte = 0;
 457
 458                /* Wait until the PLL locks */
 459                for (;;) {
 460                        if (time_after(jiffies, timeout))
 461                                return 0;
 462                        rc = tuner_i2c_xfer_recv(&priv->i2c_props,
 463                                                 &status_byte, 1);
 464                        if (1 != rc) {
 465                                tuner_warn("i2c i/o read error: rc == %d "
 466                                           "(should be 1)\n", rc);
 467                                break;
 468                        }
 469                        if (status_byte & TUNER_PLL_LOCKED)
 470                                break;
 471                        udelay(10);
 472                }
 473
 474                /* Set the charge pump for optimized phase noise figure */
 475                config &= ~TUNER_CHARGE_PUMP;
 476                buffer[0] = (div>>8) & 0x7f;
 477                buffer[1] = div      & 0xff;
 478                buffer[2] = config;
 479                buffer[3] = cb;
 480                tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 481                          buffer[0], buffer[1], buffer[2], buffer[3]);
 482
 483                rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 484                if (4 != rc)
 485                        tuner_warn("i2c i/o error: rc == %d "
 486                                   "(should be 4)\n", rc);
 487                break;
 488        }
 489        }
 490
 491        return 0;
 492}
 493
 494static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)
 495{
 496        struct tuner_simple_priv *priv = fe->tuner_priv;
 497
 498        switch (priv->type) {
 499        case TUNER_TENA_9533_DI:
 500        case TUNER_YMEC_TVF_5533MF:
 501                tuner_dbg("This tuner doesn't have FM. "
 502                          "Most cards have a TEA5767 for FM\n");
 503                return 0;
 504        case TUNER_PHILIPS_FM1216ME_MK3:
 505        case TUNER_PHILIPS_FM1236_MK3:
 506        case TUNER_PHILIPS_FMD1216ME_MK3:
 507        case TUNER_PHILIPS_FMD1216MEX_MK3:
 508        case TUNER_LG_NTSC_TAPE:
 509        case TUNER_PHILIPS_FM1256_IH3:
 510        case TUNER_TCL_MF02GIP_5N:
 511                buffer[3] = 0x19;
 512                break;
 513        case TUNER_PHILIPS_FM1216MK5:
 514                buffer[2] = 0x88;
 515                buffer[3] = 0x09;
 516                break;
 517        case TUNER_TNF_5335MF:
 518                buffer[3] = 0x11;
 519                break;
 520        case TUNER_LG_PAL_FM:
 521                buffer[3] = 0xa5;
 522                break;
 523        case TUNER_THOMSON_DTT761X:
 524                buffer[3] = 0x39;
 525                break;
 526        case TUNER_PHILIPS_FQ1216LME_MK3:
 527        case TUNER_PHILIPS_FQ1236_MK5:
 528                tuner_err("This tuner doesn't have FM\n");
 529                /* Set the low band for sanity, since it covers 88-108 MHz */
 530                buffer[3] = 0x01;
 531                break;
 532        case TUNER_MICROTUNE_4049FM5:
 533        default:
 534                buffer[3] = 0xa4;
 535                break;
 536        }
 537
 538        return 0;
 539}
 540
 541/* ---------------------------------------------------------------------- */
 542
 543static int simple_set_tv_freq(struct dvb_frontend *fe,
 544                              struct analog_parameters *params)
 545{
 546        struct tuner_simple_priv *priv = fe->tuner_priv;
 547        u8 config, cb;
 548        u16 div;
 549        struct tunertype *tun;
 550        u8 buffer[4];
 551        int rc, IFPCoff, i;
 552        enum param_type desired_type;
 553        struct tuner_params *t_params;
 554
 555        tun = priv->tun;
 556
 557        /* IFPCoff = Video Intermediate Frequency - Vif:
 558                940  =16*58.75  NTSC/J (Japan)
 559                732  =16*45.75  M/N STD
 560                704  =16*44     ATSC (at DVB code)
 561                632  =16*39.50  I U.K.
 562                622.4=16*38.90  B/G D/K I, L STD
 563                592  =16*37.00  D China
 564                590  =16.36.875 B Australia
 565                543.2=16*33.95  L' STD
 566                171.2=16*10.70  FM Radio (at set_radio_freq)
 567        */
 568
 569        if (params->std == V4L2_STD_NTSC_M_JP) {
 570                IFPCoff      = 940;
 571                desired_type = TUNER_PARAM_TYPE_NTSC;
 572        } else if ((params->std & V4L2_STD_MN) &&
 573                  !(params->std & ~V4L2_STD_MN)) {
 574                IFPCoff      = 732;
 575                desired_type = TUNER_PARAM_TYPE_NTSC;
 576        } else if (params->std == V4L2_STD_SECAM_LC) {
 577                IFPCoff      = 543;
 578                desired_type = TUNER_PARAM_TYPE_SECAM;
 579        } else {
 580                IFPCoff      = 623;
 581                desired_type = TUNER_PARAM_TYPE_PAL;
 582        }
 583
 584        t_params = simple_tuner_params(fe, desired_type);
 585
 586        i = simple_config_lookup(fe, t_params, &params->frequency,
 587                                 &config, &cb);
 588
 589        div = params->frequency + IFPCoff + offset;
 590
 591        tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, "
 592                  "Offset=%d.%02d MHz, div=%0d\n",
 593                  params->frequency / 16, params->frequency % 16 * 100 / 16,
 594                  IFPCoff / 16, IFPCoff % 16 * 100 / 16,
 595                  offset / 16, offset % 16 * 100 / 16, div);
 596
 597        /* tv norm specific stuff for multi-norm tuners */
 598        simple_std_setup(fe, params, &config, &cb);
 599
 600        if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 601                buffer[0] = config;
 602                buffer[1] = cb;
 603                buffer[2] = (div>>8) & 0x7f;
 604                buffer[3] = div      & 0xff;
 605        } else {
 606                buffer[0] = (div>>8) & 0x7f;
 607                buffer[1] = div      & 0xff;
 608                buffer[2] = config;
 609                buffer[3] = cb;
 610        }
 611        priv->last_div = div;
 612        if (t_params->has_tda9887) {
 613                struct v4l2_priv_tun_config tda9887_cfg;
 614                int tda_config = 0;
 615                int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
 616                                                 V4L2_STD_SECAM_LC)) &&
 617                        !(params->std & ~(V4L2_STD_SECAM_L |
 618                                          V4L2_STD_SECAM_LC));
 619
 620                tda9887_cfg.tuner = TUNER_TDA9887;
 621                tda9887_cfg.priv  = &tda_config;
 622
 623                if (params->std == V4L2_STD_SECAM_LC) {
 624                        if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
 625                                tda_config |= TDA9887_PORT1_ACTIVE;
 626                        if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
 627                                tda_config |= TDA9887_PORT2_ACTIVE;
 628                } else {
 629                        if (t_params->port1_active)
 630                                tda_config |= TDA9887_PORT1_ACTIVE;
 631                        if (t_params->port2_active)
 632                                tda_config |= TDA9887_PORT2_ACTIVE;
 633                }
 634                if (t_params->intercarrier_mode)
 635                        tda_config |= TDA9887_INTERCARRIER;
 636                if (is_secam_l) {
 637                        if (i == 0 && t_params->default_top_secam_low)
 638                                tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
 639                        else if (i == 1 && t_params->default_top_secam_mid)
 640                                tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
 641                        else if (t_params->default_top_secam_high)
 642                                tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
 643                } else {
 644                        if (i == 0 && t_params->default_top_low)
 645                                tda_config |= TDA9887_TOP(t_params->default_top_low);
 646                        else if (i == 1 && t_params->default_top_mid)
 647                                tda_config |= TDA9887_TOP(t_params->default_top_mid);
 648                        else if (t_params->default_top_high)
 649                                tda_config |= TDA9887_TOP(t_params->default_top_high);
 650                }
 651                if (t_params->default_pll_gating_18)
 652                        tda_config |= TDA9887_GATING_18;
 653                i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 654                                    &tda9887_cfg);
 655        }
 656        tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 657                  buffer[0], buffer[1], buffer[2], buffer[3]);
 658
 659        rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 660        if (4 != rc)
 661                tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 662
 663        simple_post_tune(fe, &buffer[0], div, config, cb);
 664
 665        return 0;
 666}
 667
 668static int simple_set_radio_freq(struct dvb_frontend *fe,
 669                                 struct analog_parameters *params)
 670{
 671        struct tunertype *tun;
 672        struct tuner_simple_priv *priv = fe->tuner_priv;
 673        u8 buffer[4];
 674        u16 div;
 675        int rc, j;
 676        struct tuner_params *t_params;
 677        unsigned int freq = params->frequency;
 678
 679        tun = priv->tun;
 680
 681        for (j = tun->count-1; j > 0; j--)
 682                if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO)
 683                        break;
 684        /* default t_params (j=0) will be used if desired type wasn't found */
 685        t_params = &tun->params[j];
 686
 687        /* Select Radio 1st IF used */
 688        switch (t_params->radio_if) {
 689        case 0: /* 10.7 MHz */
 690                freq += (unsigned int)(10.7*16000);
 691                break;
 692        case 1: /* 33.3 MHz */
 693                freq += (unsigned int)(33.3*16000);
 694                break;
 695        case 2: /* 41.3 MHz */
 696                freq += (unsigned int)(41.3*16000);
 697                break;
 698        default:
 699                tuner_warn("Unsupported radio_if value %d\n",
 700                           t_params->radio_if);
 701                return 0;
 702        }
 703
 704        buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) |
 705                    TUNER_RATIO_SELECT_50; /* 50 kHz step */
 706
 707        /* Bandswitch byte */
 708        simple_radio_bandswitch(fe, &buffer[0]);
 709
 710        /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps
 711           freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =
 712           freq * (1/800) */
 713        div = (freq + 400) / 800;
 714
 715        if (t_params->cb_first_if_lower_freq && div < priv->last_div) {
 716                buffer[0] = buffer[2];
 717                buffer[1] = buffer[3];
 718                buffer[2] = (div>>8) & 0x7f;
 719                buffer[3] = div      & 0xff;
 720        } else {
 721                buffer[0] = (div>>8) & 0x7f;
 722                buffer[1] = div      & 0xff;
 723        }
 724
 725        tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
 726               buffer[0], buffer[1], buffer[2], buffer[3]);
 727        priv->last_div = div;
 728
 729        if (t_params->has_tda9887) {
 730                int config = 0;
 731                struct v4l2_priv_tun_config tda9887_cfg;
 732
 733                tda9887_cfg.tuner = TUNER_TDA9887;
 734                tda9887_cfg.priv = &config;
 735
 736                if (t_params->port1_active &&
 737                    !t_params->port1_fm_high_sensitivity)
 738                        config |= TDA9887_PORT1_ACTIVE;
 739                if (t_params->port2_active &&
 740                    !t_params->port2_fm_high_sensitivity)
 741                        config |= TDA9887_PORT2_ACTIVE;
 742                if (t_params->intercarrier_mode)
 743                        config |= TDA9887_INTERCARRIER;
 744/*              if (t_params->port1_set_for_fm_mono)
 745                        config &= ~TDA9887_PORT1_ACTIVE;*/
 746                if (t_params->fm_gain_normal)
 747                        config |= TDA9887_GAIN_NORMAL;
 748                if (t_params->radio_if == 2)
 749                        config |= TDA9887_RIF_41_3;
 750                i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
 751                                    &tda9887_cfg);
 752        }
 753        rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);
 754        if (4 != rc)
 755                tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);
 756
 757        return 0;
 758}
 759
 760static int simple_set_params(struct dvb_frontend *fe,
 761                             struct analog_parameters *params)
 762{
 763        struct tuner_simple_priv *priv = fe->tuner_priv;
 764        int ret = -EINVAL;
 765
 766        if (priv->i2c_props.adap == NULL)
 767                return -EINVAL;
 768
 769        switch (params->mode) {
 770        case V4L2_TUNER_RADIO:
 771                ret = simple_set_radio_freq(fe, params);
 772                priv->frequency = params->frequency * 125 / 2;
 773                break;
 774        case V4L2_TUNER_ANALOG_TV:
 775        case V4L2_TUNER_DIGITAL_TV:
 776                ret = simple_set_tv_freq(fe, params);
 777                priv->frequency = params->frequency * 62500;
 778                break;
 779        }
 780        priv->bandwidth = 0;
 781
 782        return ret;
 783}
 784
 785static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,
 786                           const struct dvb_frontend_parameters *params)
 787{
 788        struct tuner_simple_priv *priv = fe->tuner_priv;
 789
 790        switch (priv->type) {
 791        case TUNER_PHILIPS_FMD1216ME_MK3:
 792        case TUNER_PHILIPS_FMD1216MEX_MK3:
 793                if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
 794                    params->frequency >= 158870000)
 795                        buf[3] |= 0x08;
 796                break;
 797        case TUNER_PHILIPS_TD1316:
 798                /* determine band */
 799                buf[3] |= (params->frequency < 161000000) ? 1 :
 800                          (params->frequency < 444000000) ? 2 : 4;
 801
 802                /* setup PLL filter */
 803                if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 804                        buf[3] |= 1 << 3;
 805                break;
 806        case TUNER_PHILIPS_TUV1236D:
 807        case TUNER_PHILIPS_FCV1236D:
 808        {
 809                unsigned int new_rf;
 810
 811                if (dtv_input[priv->nr])
 812                        new_rf = dtv_input[priv->nr];
 813                else
 814                        switch (params->u.vsb.modulation) {
 815                        case QAM_64:
 816                        case QAM_256:
 817                                new_rf = 1;
 818                                break;
 819                        case VSB_8:
 820                        default:
 821                                new_rf = 0;
 822                                break;
 823                        }
 824                simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);
 825                break;
 826        }
 827        default:
 828                break;
 829        }
 830}
 831
 832static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
 833                                const struct dvb_frontend_parameters *params)
 834{
 835        /* This function returns the tuned frequency on success, 0 on error */
 836        struct tuner_simple_priv *priv = fe->tuner_priv;
 837        struct tunertype *tun = priv->tun;
 838        static struct tuner_params *t_params;
 839        u8 config, cb;
 840        u32 div;
 841        int ret;
 842        unsigned frequency = params->frequency / 62500;
 843
 844        if (!tun->stepsize) {
 845                /* tuner-core was loaded before the digital tuner was
 846                 * configured and somehow picked the wrong tuner type */
 847                tuner_err("attempt to treat tuner %d (%s) as digital tuner "
 848                          "without stepsize defined.\n",
 849                          priv->type, priv->tun->name);
 850                return 0; /* failure */
 851        }
 852
 853        t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
 854        ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
 855        if (ret < 0)
 856                return 0; /* failure */
 857
 858        div = ((frequency + t_params->iffreq) * 62500 + offset +
 859               tun->stepsize/2) / tun->stepsize;
 860
 861        buf[0] = div >> 8;
 862        buf[1] = div & 0xff;
 863        buf[2] = config;
 864        buf[3] = cb;
 865
 866        simple_set_dvb(fe, buf, params);
 867
 868        tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 869                  tun->name, div, buf[0], buf[1], buf[2], buf[3]);
 870
 871        /* calculate the frequency we set it to */
 872        return (div * tun->stepsize) - t_params->iffreq;
 873}
 874
 875static int simple_dvb_calc_regs(struct dvb_frontend *fe,
 876                                struct dvb_frontend_parameters *params,
 877                                u8 *buf, int buf_len)
 878{
 879        struct tuner_simple_priv *priv = fe->tuner_priv;
 880        u32 frequency;
 881
 882        if (buf_len < 5)
 883                return -EINVAL;
 884
 885        frequency = simple_dvb_configure(fe, buf+1, params);
 886        if (frequency == 0)
 887                return -EINVAL;
 888
 889        buf[0] = priv->i2c_props.addr;
 890
 891        priv->frequency = frequency;
 892        priv->bandwidth = (fe->ops.info.type == FE_OFDM) ?
 893                params->u.ofdm.bandwidth : 0;
 894
 895        return 5;
 896}
 897
 898static int simple_dvb_set_params(struct dvb_frontend *fe,
 899                                 struct dvb_frontend_parameters *params)
 900{
 901        struct tuner_simple_priv *priv = fe->tuner_priv;
 902        u32 prev_freq, prev_bw;
 903        int ret;
 904        u8 buf[5];
 905
 906        if (priv->i2c_props.adap == NULL)
 907                return -EINVAL;
 908
 909        prev_freq = priv->frequency;
 910        prev_bw   = priv->bandwidth;
 911
 912        ret = simple_dvb_calc_regs(fe, params, buf, 5);
 913        if (ret != 5)
 914                goto fail;
 915
 916        /* put analog demod in standby when tuning digital */
 917        if (fe->ops.analog_ops.standby)
 918                fe->ops.analog_ops.standby(fe);
 919
 920        if (fe->ops.i2c_gate_ctrl)
 921                fe->ops.i2c_gate_ctrl(fe, 1);
 922
 923        /* buf[0] contains the i2c address, but *
 924         * we already have it in i2c_props.addr */
 925        ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);
 926        if (ret != 4)
 927                goto fail;
 928
 929        return 0;
 930fail:
 931        /* calc_regs sets frequency and bandwidth. if we failed, unset them */
 932        priv->frequency = prev_freq;
 933        priv->bandwidth = prev_bw;
 934
 935        return ret;
 936}
 937
 938static int simple_init(struct dvb_frontend *fe)
 939{
 940        struct tuner_simple_priv *priv = fe->tuner_priv;
 941
 942        if (priv->i2c_props.adap == NULL)
 943                return -EINVAL;
 944
 945        if (priv->tun->initdata) {
 946                int ret;
 947
 948                if (fe->ops.i2c_gate_ctrl)
 949                        fe->ops.i2c_gate_ctrl(fe, 1);
 950
 951                ret = tuner_i2c_xfer_send(&priv->i2c_props,
 952                                          priv->tun->initdata + 1,
 953                                          priv->tun->initdata[0]);
 954                if (ret != priv->tun->initdata[0])
 955                        return ret;
 956        }
 957
 958        return 0;
 959}
 960
 961static int simple_sleep(struct dvb_frontend *fe)
 962{
 963        struct tuner_simple_priv *priv = fe->tuner_priv;
 964
 965        if (priv->i2c_props.adap == NULL)
 966                return -EINVAL;
 967
 968        if (priv->tun->sleepdata) {
 969                int ret;
 970
 971                if (fe->ops.i2c_gate_ctrl)
 972                        fe->ops.i2c_gate_ctrl(fe, 1);
 973
 974                ret = tuner_i2c_xfer_send(&priv->i2c_props,
 975                                          priv->tun->sleepdata + 1,
 976                                          priv->tun->sleepdata[0]);
 977                if (ret != priv->tun->sleepdata[0])
 978                        return ret;
 979        }
 980
 981        return 0;
 982}
 983
 984static int simple_release(struct dvb_frontend *fe)
 985{
 986        struct tuner_simple_priv *priv = fe->tuner_priv;
 987
 988        mutex_lock(&tuner_simple_list_mutex);
 989
 990        if (priv)
 991                hybrid_tuner_release_state(priv);
 992
 993        mutex_unlock(&tuner_simple_list_mutex);
 994
 995        fe->tuner_priv = NULL;
 996
 997        return 0;
 998}
 999
1000static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency)
1001{
1002        struct tuner_simple_priv *priv = fe->tuner_priv;
1003        *frequency = priv->frequency;
1004        return 0;
1005}
1006
1007static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
1008{
1009        struct tuner_simple_priv *priv = fe->tuner_priv;
1010        *bandwidth = priv->bandwidth;
1011        return 0;
1012}
1013
1014static struct dvb_tuner_ops simple_tuner_ops = {
1015        .init              = simple_init,
1016        .sleep             = simple_sleep,
1017        .set_analog_params = simple_set_params,
1018        .set_params        = simple_dvb_set_params,
1019        .calc_regs         = simple_dvb_calc_regs,
1020        .release           = simple_release,
1021        .get_frequency     = simple_get_frequency,
1022        .get_bandwidth     = simple_get_bandwidth,
1023        .get_status        = simple_get_status,
1024        .get_rf_strength   = simple_get_rf_strength,
1025};
1026
1027struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe,
1028                                         struct i2c_adapter *i2c_adap,
1029                                         u8 i2c_addr,
1030                                         unsigned int type)
1031{
1032        struct tuner_simple_priv *priv = NULL;
1033        int instance;
1034
1035        if (type >= tuner_count) {
1036                printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n",
1037                       __func__, type, tuner_count-1);
1038                return NULL;
1039        }
1040
1041        /* If i2c_adap is set, check that the tuner is at the correct address.
1042         * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly
1043         * by the digital demod via calc_regs.
1044         */
1045        if (i2c_adap != NULL) {
1046                u8 b[1];
1047                struct i2c_msg msg = {
1048                        .addr = i2c_addr, .flags = I2C_M_RD,
1049                        .buf = b, .len = 1,
1050                };
1051
1052                if (fe->ops.i2c_gate_ctrl)
1053                        fe->ops.i2c_gate_ctrl(fe, 1);
1054
1055                if (1 != i2c_transfer(i2c_adap, &msg, 1))
1056                        printk(KERN_WARNING "tuner-simple %d-%04x: "
1057                               "unable to probe %s, proceeding anyway.",
1058                               i2c_adapter_id(i2c_adap), i2c_addr,
1059                               tuners[type].name);
1060
1061                if (fe->ops.i2c_gate_ctrl)
1062                        fe->ops.i2c_gate_ctrl(fe, 0);
1063        }
1064
1065        mutex_lock(&tuner_simple_list_mutex);
1066
1067        instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,
1068                                              hybrid_tuner_instance_list,
1069                                              i2c_adap, i2c_addr,
1070                                              "tuner-simple");
1071        switch (instance) {
1072        case 0:
1073                mutex_unlock(&tuner_simple_list_mutex);
1074                return NULL;
1075        case 1:
1076                fe->tuner_priv = priv;
1077
1078                priv->type = type;
1079                priv->tun  = &tuners[type];
1080                priv->nr   = simple_devcount++;
1081                break;
1082        default:
1083                fe->tuner_priv = priv;
1084                break;
1085        }
1086
1087        mutex_unlock(&tuner_simple_list_mutex);
1088
1089        memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,
1090               sizeof(struct dvb_tuner_ops));
1091
1092        if (type != priv->type)
1093                tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",
1094                            type, priv->type, priv->tun->name);
1095        else
1096                tuner_info("type set to %d (%s)\n",
1097                           priv->type, priv->tun->name);
1098
1099        if ((debug) || ((atv_input[priv->nr] > 0) ||
1100                        (dtv_input[priv->nr] > 0))) {
1101                if (0 == atv_input[priv->nr])
1102                        tuner_info("tuner %d atv rf input will be "
1103                                   "autoselected\n", priv->nr);
1104                else
1105                        tuner_info("tuner %d atv rf input will be "
1106                                   "set to input %d (insmod option)\n",
1107                                   priv->nr, atv_input[priv->nr]);
1108                if (0 == dtv_input[priv->nr])
1109                        tuner_info("tuner %d dtv rf input will be "
1110                                   "autoselected\n", priv->nr);
1111                else
1112                        tuner_info("tuner %d dtv rf input will be "
1113                                   "set to input %d (insmod option)\n",
1114                                   priv->nr, dtv_input[priv->nr]);
1115        }
1116
1117        strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name,
1118                sizeof(fe->ops.tuner_ops.info.name));
1119
1120        return fe;
1121}
1122EXPORT_SYMBOL_GPL(simple_tuner_attach);
1123
1124MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");
1125MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
1126MODULE_LICENSE("GPL");
1127
1128/*
1129 * Overrides for Emacs so that we follow Linus's tabbing style.
1130 * ---------------------------------------------------------------------------
1131 * Local variables:
1132 * c-basic-offset: 8
1133 * End:
1134 */
1135