LXR linux/drivers/media/video/tvaudio.c

   1/*
   2 * experimental driver for simple i2c audio chips.
   3 *
   4 * Copyright (c) 2000 Gerd Knorr
   5 * based on code by:
   6 *   Eric Sandeen (eric_sandeen@bigfoot.com)
   7 *   Steve VanDeBogart (vandebo@uclink.berkeley.edu)
   8 *   Greg Alexander (galexand@acm.org)
   9 *
  10 * This code is placed under the terms of the GNU General Public License
  11 *
  12 * OPTIONS:
  13 *   debug - set to 1 if you'd like to see debug messages
  14 *
  15 */
  16
  17#include <linux/module.h>
  18#include <linux/kernel.h>
  19#include <linux/sched.h>
  20#include <linux/string.h>
  21#include <linux/timer.h>
  22#include <linux/delay.h>
  23#include <linux/errno.h>
  24#include <linux/slab.h>
  25#include <linux/videodev.h>
  26#include <linux/i2c.h>
  27#include <linux/init.h>
  28#include <linux/kthread.h>
  29#include <linux/freezer.h>
  30
  31#include <media/tvaudio.h>
  32#include <media/v4l2-common.h>
  33#include <media/v4l2-chip-ident.h>
  34
  35#include <media/i2c-addr.h>
  36
  37/* ---------------------------------------------------------------------- */
  38/* insmod args                                                            */
  39
  40static int debug = 0;   /* insmod parameter */
  41module_param(debug, int, 0644);
  42
  43MODULE_DESCRIPTION("device driver for various i2c TV sound decoder / audiomux chips");
  44MODULE_AUTHOR("Eric Sandeen, Steve VanDeBogart, Greg Alexander, Gerd Knorr");
  45MODULE_LICENSE("GPL");
  46
  47#define UNSET    (-1U)
  48
  49/* ---------------------------------------------------------------------- */
  50/* our structs                                                            */
  51
  52#define MAXREGS 64
  53
  54struct CHIPSTATE;
  55typedef int  (*getvalue)(int);
  56typedef int  (*checkit)(struct CHIPSTATE*);
  57typedef int  (*initialize)(struct CHIPSTATE*);
  58typedef int  (*getmode)(struct CHIPSTATE*);
  59typedef void (*setmode)(struct CHIPSTATE*, int mode);
  60typedef void (*checkmode)(struct CHIPSTATE*);
  61
  62/* i2c command */
  63typedef struct AUDIOCMD {
  64        int             count;             /* # of bytes to send */
  65        unsigned char   bytes[MAXREGS+1];  /* addr, data, data, ... */
  66} audiocmd;
  67
  68/* chip description */
  69struct CHIPDESC {
  70        char       *name;             /* chip name         */
  71        int        id;                /* ID */
  72        int        addr_lo, addr_hi;  /* i2c address range */
  73        int        registers;         /* # of registers    */
  74
  75        int        *insmodopt;
  76        checkit    checkit;
  77        initialize initialize;
  78        int        flags;
  79#define CHIP_HAS_VOLUME      1
  80#define CHIP_HAS_BASSTREBLE  2
  81#define CHIP_HAS_INPUTSEL    4
  82
  83        /* various i2c command sequences */
  84        audiocmd   init;
  85
  86        /* which register has which value */
  87        int    leftreg,rightreg,treblereg,bassreg;
  88
  89        /* initialize with (defaults to 65535/65535/32768/32768 */
  90        int    leftinit,rightinit,trebleinit,bassinit;
  91
  92        /* functions to convert the values (v4l -> chip) */
  93        getvalue volfunc,treblefunc,bassfunc;
  94
  95        /* get/set mode */
  96        getmode  getmode;
  97        setmode  setmode;
  98
  99        /* check / autoswitch audio after channel switches */
 100        checkmode  checkmode;
 101
 102        /* input switch register + values for v4l inputs */
 103        int  inputreg;
 104        int  inputmap[4];
 105        int  inputmute;
 106        int  inputmask;
 107};
 108static struct CHIPDESC chiplist[];
 109
 110/* current state of the chip */
 111struct CHIPSTATE {
 112        struct i2c_client c;
 113
 114        /* index into CHIPDESC array */
 115        int type;
 116
 117        /* shadow register set */
 118        audiocmd   shadow;
 119
 120        /* current settings */
 121        __u16 left,right,treble,bass,muted,mode;
 122        int prevmode;
 123        int radio;
 124        int input;
 125
 126        /* thread */
 127        struct task_struct   *thread;
 128        struct timer_list    wt;
 129        int                  watch_stereo;
 130        int                  audmode;
 131};
 132
 133/* ---------------------------------------------------------------------- */
 134/* i2c addresses                                                          */
 135
 136static unsigned short normal_i2c[] = {
 137        I2C_ADDR_TDA8425   >> 1,
 138        I2C_ADDR_TEA6300   >> 1,
 139        I2C_ADDR_TEA6420   >> 1,
 140        I2C_ADDR_TDA9840   >> 1,
 141        I2C_ADDR_TDA985x_L >> 1,
 142        I2C_ADDR_TDA985x_H >> 1,
 143        I2C_ADDR_TDA9874   >> 1,
 144        I2C_ADDR_PIC16C54  >> 1,
 145        I2C_CLIENT_END };
 146I2C_CLIENT_INSMOD;
 147
 148static struct i2c_driver driver;
 149static struct i2c_client client_template;
 150
 151
 152/* ---------------------------------------------------------------------- */
 153/* i2c I/O functions                                                      */
 154
 155static int chip_write(struct CHIPSTATE *chip, int subaddr, int val)
 156{
 157        unsigned char buffer[2];
 158
 159        if (-1 == subaddr) {
 160                v4l_dbg(1, debug, &chip->c, "%s: chip_write: 0x%x\n",
 161                        chip->c.name, val);
 162                chip->shadow.bytes[1] = val;
 163                buffer[0] = val;
 164                if (1 != i2c_master_send(&chip->c,buffer,1)) {
 165                        v4l_warn(&chip->c, "%s: I/O error (write 0x%x)\n",
 166                                chip->c.name, val);
 167                        return -1;
 168                }
 169        } else {
 170                v4l_dbg(1, debug, &chip->c, "%s: chip_write: reg%d=0x%x\n",
 171                        chip->c.name, subaddr, val);
 172                chip->shadow.bytes[subaddr+1] = val;
 173                buffer[0] = subaddr;
 174                buffer[1] = val;
 175                if (2 != i2c_master_send(&chip->c,buffer,2)) {
 176                        v4l_warn(&chip->c, "%s: I/O error (write reg%d=0x%x)\n",
 177                        chip->c.name, subaddr, val);
 178                        return -1;
 179                }
 180        }
 181        return 0;
 182}
 183
 184static int chip_write_masked(struct CHIPSTATE *chip, int subaddr, int val, int mask)
 185{
 186        if (mask != 0) {
 187                if (-1 == subaddr) {
 188                        val = (chip->shadow.bytes[1] & ~mask) | (val & mask);
 189                } else {
 190                        val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask);
 191                }
 192        }
 193        return chip_write(chip, subaddr, val);
 194}
 195
 196static int chip_read(struct CHIPSTATE *chip)
 197{
 198        unsigned char buffer;
 199
 200        if (1 != i2c_master_recv(&chip->c,&buffer,1)) {
 201                v4l_warn(&chip->c, "%s: I/O error (read)\n",
 202                chip->c.name);
 203                return -1;
 204        }
 205        v4l_dbg(1, debug, &chip->c, "%s: chip_read: 0x%x\n",chip->c.name, buffer);
 206        return buffer;
 207}
 208
 209static int chip_read2(struct CHIPSTATE *chip, int subaddr)
 210{
 211        unsigned char write[1];
 212        unsigned char read[1];
 213        struct i2c_msg msgs[2] = {
 214                { chip->c.addr, 0,        1, write },
 215                { chip->c.addr, I2C_M_RD, 1, read  }
 216        };
 217        write[0] = subaddr;
 218
 219        if (2 != i2c_transfer(chip->c.adapter,msgs,2)) {
 220                v4l_warn(&chip->c, "%s: I/O error (read2)\n", chip->c.name);
 221                return -1;
 222        }
 223        v4l_dbg(1, debug, &chip->c, "%s: chip_read2: reg%d=0x%x\n",
 224                chip->c.name, subaddr,read[0]);
 225        return read[0];
 226}
 227
 228static int chip_cmd(struct CHIPSTATE *chip, char *name, audiocmd *cmd)
 229{
 230        int i;
 231
 232        if (0 == cmd->count)
 233                return 0;
 234
 235        /* update our shadow register set; print bytes if (debug > 0) */
 236        v4l_dbg(1, debug, &chip->c, "%s: chip_cmd(%s): reg=%d, data:",
 237                chip->c.name, name,cmd->bytes[0]);
 238        for (i = 1; i < cmd->count; i++) {
 239                if (debug)
 240                        printk(" 0x%x",cmd->bytes[i]);
 241                chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i];
 242        }
 243        if (debug)
 244                printk("\n");
 245
 246        /* send data to the chip */
 247        if (cmd->count != i2c_master_send(&chip->c,cmd->bytes,cmd->count)) {
 248                v4l_warn(&chip->c, "%s: I/O error (%s)\n", chip->c.name, name);
 249                return -1;
 250        }
 251        return 0;
 252}
 253
 254/* ---------------------------------------------------------------------- */
 255/* kernel thread for doing i2c stuff asyncronly
 256 *   right now it is used only to check the audio mode (mono/stereo/whatever)
 257 *   some time after switching to another TV channel, then turn on stereo
 258 *   if available, ...
 259 */
 260
 261static void chip_thread_wake(unsigned long data)
 262{
 263        struct CHIPSTATE *chip = (struct CHIPSTATE*)data;
 264        wake_up_process(chip->thread);
 265}
 266
 267static int chip_thread(void *data)
 268{
 269        struct CHIPSTATE *chip = data;
 270        struct CHIPDESC  *desc = chiplist + chip->type;
 271
 272        v4l_dbg(1, debug, &chip->c, "%s: thread started\n", chip->c.name);
 273        set_freezable();
 274        for (;;) {
 275                set_current_state(TASK_INTERRUPTIBLE);
 276                if (!kthread_should_stop())
 277                        schedule();
 278                set_current_state(TASK_RUNNING);
 279                try_to_freeze();
 280                if (kthread_should_stop())
 281                        break;
 282                v4l_dbg(1, debug, &chip->c, "%s: thread wakeup\n", chip->c.name);
 283
 284                /* don't do anything for radio or if mode != auto */
 285                if (chip->radio || chip->mode != 0)
 286                        continue;
 287
 288                /* have a look what's going on */
 289                desc->checkmode(chip);
 290
 291                /* schedule next check */
 292                mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
 293        }
 294
 295        v4l_dbg(1, debug, &chip->c, "%s: thread exiting\n", chip->c.name);
 296        return 0;
 297}
 298
 299static void generic_checkmode(struct CHIPSTATE *chip)
 300{
 301        struct CHIPDESC  *desc = chiplist + chip->type;
 302        int mode = desc->getmode(chip);
 303
 304        if (mode == chip->prevmode)
 305        return;
 306
 307        v4l_dbg(1, debug, &chip->c, "%s: thread checkmode\n", chip->c.name);
 308        chip->prevmode = mode;
 309
 310        if (mode & VIDEO_SOUND_STEREO)
 311                desc->setmode(chip,VIDEO_SOUND_STEREO);
 312        else if (mode & VIDEO_SOUND_LANG1)
 313                desc->setmode(chip,VIDEO_SOUND_LANG1);
 314        else if (mode & VIDEO_SOUND_LANG2)
 315                desc->setmode(chip,VIDEO_SOUND_LANG2);
 316        else
 317                desc->setmode(chip,VIDEO_SOUND_MONO);
 318}
 319
 320/* ---------------------------------------------------------------------- */
 321/* audio chip descriptions - defines+functions for tda9840                */
 322
 323#define TDA9840_SW         0x00
 324#define TDA9840_LVADJ      0x02
 325#define TDA9840_STADJ      0x03
 326#define TDA9840_TEST       0x04
 327
 328#define TDA9840_MONO       0x10
 329#define TDA9840_STEREO     0x2a
 330#define TDA9840_DUALA      0x12
 331#define TDA9840_DUALB      0x1e
 332#define TDA9840_DUALAB     0x1a
 333#define TDA9840_DUALBA     0x16
 334#define TDA9840_EXTERNAL   0x7a
 335
 336#define TDA9840_DS_DUAL    0x20 /* Dual sound identified          */
 337#define TDA9840_ST_STEREO  0x40 /* Stereo sound identified        */
 338#define TDA9840_PONRES     0x80 /* Power-on reset detected if = 1 */
 339
 340#define TDA9840_TEST_INT1SN 0x1 /* Integration time 0.5s when set */
 341#define TDA9840_TEST_INTFU 0x02 /* Disables integrator function */
 342
 343static int tda9840_getmode(struct CHIPSTATE *chip)
 344{
 345        int val, mode;
 346
 347        val = chip_read(chip);
 348        mode = VIDEO_SOUND_MONO;
 349        if (val & TDA9840_DS_DUAL)
 350                mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
 351        if (val & TDA9840_ST_STEREO)
 352                mode |= VIDEO_SOUND_STEREO;
 353
 354        v4l_dbg(1, debug, &chip->c, "tda9840_getmode(): raw chip read: %d, return: %d\n",
 355                val, mode);
 356        return mode;
 357}
 358
 359static void tda9840_setmode(struct CHIPSTATE *chip, int mode)
 360{
 361        int update = 1;
 362        int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e;
 363
 364        switch (mode) {
 365        case VIDEO_SOUND_MONO:
 366                t |= TDA9840_MONO;
 367                break;
 368        case VIDEO_SOUND_STEREO:
 369                t |= TDA9840_STEREO;
 370                break;
 371        case VIDEO_SOUND_LANG1:
 372                t |= TDA9840_DUALA;
 373                break;
 374        case VIDEO_SOUND_LANG2:
 375                t |= TDA9840_DUALB;
 376                break;
 377        default:
 378                update = 0;
 379        }
 380
 381        if (update)
 382                chip_write(chip, TDA9840_SW, t);
 383}
 384
 385static int tda9840_checkit(struct CHIPSTATE *chip)
 386{
 387        int rc;
 388        rc = chip_read(chip);
 389        /* lower 5 bits should be 0 */
 390        return ((rc & 0x1f) == 0) ? 1 : 0;
 391}
 392
 393/* ---------------------------------------------------------------------- */
 394/* audio chip descriptions - defines+functions for tda985x                */
 395
 396/* subaddresses for TDA9855 */
 397#define TDA9855_VR      0x00 /* Volume, right */
 398#define TDA9855_VL      0x01 /* Volume, left */
 399#define TDA9855_BA      0x02 /* Bass */
 400#define TDA9855_TR      0x03 /* Treble */
 401#define TDA9855_SW      0x04 /* Subwoofer - not connected on DTV2000 */
 402
 403/* subaddresses for TDA9850 */
 404#define TDA9850_C4      0x04 /* Control 1 for TDA9850 */
 405
 406/* subaddesses for both chips */
 407#define TDA985x_C5      0x05 /* Control 2 for TDA9850, Control 1 for TDA9855 */
 408#define TDA985x_C6      0x06 /* Control 3 for TDA9850, Control 2 for TDA9855 */
 409#define TDA985x_C7      0x07 /* Control 4 for TDA9850, Control 3 for TDA9855 */
 410#define TDA985x_A1      0x08 /* Alignment 1 for both chips */
 411#define TDA985x_A2      0x09 /* Alignment 2 for both chips */
 412#define TDA985x_A3      0x0a /* Alignment 3 for both chips */
 413
 414/* Masks for bits in TDA9855 subaddresses */
 415/* 0x00 - VR in TDA9855 */
 416/* 0x01 - VL in TDA9855 */
 417/* lower 7 bits control gain from -71dB (0x28) to 16dB (0x7f)
 418 * in 1dB steps - mute is 0x27 */
 419
 420
 421/* 0x02 - BA in TDA9855 */
 422/* lower 5 bits control bass gain from -12dB (0x06) to 16.5dB (0x19)
 423 * in .5dB steps - 0 is 0x0E */
 424
 425
 426/* 0x03 - TR in TDA9855 */
 427/* 4 bits << 1 control treble gain from -12dB (0x3) to 12dB (0xb)
 428 * in 3dB steps - 0 is 0x7 */
 429
 430/* Masks for bits in both chips' subaddresses */
 431/* 0x04 - SW in TDA9855, C4/Control 1 in TDA9850 */
 432/* Unique to TDA9855: */
 433/* 4 bits << 2 control subwoofer/surround gain from -14db (0x1) to 14db (0xf)
 434 * in 3dB steps - mute is 0x0 */
 435
 436/* Unique to TDA9850: */
 437/* lower 4 bits control stereo noise threshold, over which stereo turns off
 438 * set to values of 0x00 through 0x0f for Ster1 through Ster16 */
 439
 440
 441/* 0x05 - C5 - Control 1 in TDA9855 , Control 2 in TDA9850*/
 442/* Unique to TDA9855: */
 443#define TDA9855_MUTE    1<<7 /* GMU, Mute at outputs */
 444#define TDA9855_AVL     1<<6 /* AVL, Automatic Volume Level */
 445#define TDA9855_LOUD    1<<5 /* Loudness, 1==off */
 446#define TDA9855_SUR     1<<3 /* Surround / Subwoofer 1==.5(L-R) 0==.5(L+R) */
 447                             /* Bits 0 to 3 select various combinations
 448                              * of line in and line out, only the
 449                              * interesting ones are defined */
 450#define TDA9855_EXT     1<<2 /* Selects inputs LIR and LIL.  Pins 41 & 12 */
 451#define TDA9855_INT     0    /* Selects inputs LOR and LOL.  (internal) */
 452
 453/* Unique to TDA9850:  */
 454/* lower 4 bits contol SAP noise threshold, over which SAP turns off
 455 * set to values of 0x00 through 0x0f for SAP1 through SAP16 */
 456
 457
 458/* 0x06 - C6 - Control 2 in TDA9855, Control 3 in TDA9850 */
 459/* Common to TDA9855 and TDA9850: */
 460#define TDA985x_SAP     3<<6 /* Selects SAP output, mute if not received */
 461#define TDA985x_STEREO  1<<6 /* Selects Stereo ouput, mono if not received */
 462#define TDA985x_MONO    0    /* Forces Mono output */
 463#define TDA985x_LMU     1<<3 /* Mute (LOR/LOL for 9855, OUTL/OUTR for 9850) */
 464
 465/* Unique to TDA9855: */
 466#define TDA9855_TZCM    1<<5 /* If set, don't mute till zero crossing */
 467#define TDA9855_VZCM    1<<4 /* If set, don't change volume till zero crossing*/
 468#define TDA9855_LINEAR  0    /* Linear Stereo */
 469#define TDA9855_PSEUDO  1    /* Pseudo Stereo */
 470#define TDA9855_SPAT_30 2    /* Spatial Stereo, 30% anti-phase crosstalk */
 471#define TDA9855_SPAT_50 3    /* Spatial Stereo, 52% anti-phase crosstalk */
 472#define TDA9855_E_MONO  7    /* Forced mono - mono select elseware, so useless*/
 473
 474/* 0x07 - C7 - Control 3 in TDA9855, Control 4 in TDA9850 */
 475/* Common to both TDA9855 and TDA9850: */
 476/* lower 4 bits control input gain from -3.5dB (0x0) to 4dB (0xF)
 477 * in .5dB steps -  0dB is 0x7 */
 478
 479/* 0x08, 0x09 - A1 and A2 (read/write) */
 480/* Common to both TDA9855 and TDA9850: */
 481/* lower 5 bites are wideband and spectral expander alignment
 482 * from 0x00 to 0x1f - nominal at 0x0f and 0x10 (read/write) */
 483#define TDA985x_STP     1<<5 /* Stereo Pilot/detect (read-only) */
 484#define TDA985x_SAPP    1<<6 /* SAP Pilot/detect (read-only) */
 485#define TDA985x_STS     1<<7 /* Stereo trigger 1= <35mV 0= <30mV (write-only)*/
 486
 487/* 0x0a - A3 */
 488/* Common to both TDA9855 and TDA9850: */
 489/* lower 3 bits control timing current for alignment: -30% (0x0), -20% (0x1),
 490 * -10% (0x2), nominal (0x3), +10% (0x6), +20% (0x5), +30% (0x4) */
 491#define TDA985x_ADJ     1<<7 /* Stereo adjust on/off (wideband and spectral */
 492
 493static int tda9855_volume(int val) { return val/0x2e8+0x27; }
 494static int tda9855_bass(int val)   { return val/0xccc+0x06; }
 495static int tda9855_treble(int val) { return (val/0x1c71+0x3)<<1; }
 496
 497static int  tda985x_getmode(struct CHIPSTATE *chip)
 498{
 499        int mode;
 500
 501        mode = ((TDA985x_STP | TDA985x_SAPP) &
 502                chip_read(chip)) >> 4;
 503        /* Add mono mode regardless of SAP and stereo */
 504        /* Allows forced mono */
 505        return mode | VIDEO_SOUND_MONO;
 506}
 507
 508static void tda985x_setmode(struct CHIPSTATE *chip, int mode)
 509{
 510        int update = 1;
 511        int c6 = chip->shadow.bytes[TDA985x_C6+1] & 0x3f;
 512
 513        switch (mode) {
 514        case VIDEO_SOUND_MONO:
 515                c6 |= TDA985x_MONO;
 516                break;
 517        case VIDEO_SOUND_STEREO:
 518                c6 |= TDA985x_STEREO;
 519                break;
 520        case VIDEO_SOUND_LANG1:
 521                c6 |= TDA985x_SAP;
 522                break;
 523        default:
 524                update = 0;
 525        }
 526        if (update)
 527                chip_write(chip,TDA985x_C6,c6);
 528}
 529
 530
 531/* ---------------------------------------------------------------------- */
 532/* audio chip descriptions - defines+functions for tda9873h               */
 533
 534/* Subaddresses for TDA9873H */
 535
 536#define TDA9873_SW      0x00 /* Switching                    */
 537#define TDA9873_AD      0x01 /* Adjust                       */
 538#define TDA9873_PT      0x02 /* Port                         */
 539
 540/* Subaddress 0x00: Switching Data
 541 * B7..B0:
 542 *
 543 * B1, B0: Input source selection
 544 *  0,  0  internal
 545 *  1,  0  external stereo
 546 *  0,  1  external mono
 547 */
 548#define TDA9873_INP_MASK    3
 549#define TDA9873_INTERNAL    0
 550#define TDA9873_EXT_STEREO  2
 551#define TDA9873_EXT_MONO    1
 552
 553/*    B3, B2: output signal select
 554 * B4    : transmission mode
 555 *  0, 0, 1   Mono
 556 *  1, 0, 0   Stereo
 557 *  1, 1, 1   Stereo (reversed channel)
 558 *  0, 0, 0   Dual AB
 559 *  0, 0, 1   Dual AA
 560 *  0, 1, 0   Dual BB
 561 *  0, 1, 1   Dual BA
 562 */
 563
 564#define TDA9873_TR_MASK     (7 << 2)
 565#define TDA9873_TR_MONO     4
 566#define TDA9873_TR_STEREO   1 << 4
 567#define TDA9873_TR_REVERSE  (1 << 3) & (1 << 2)
 568#define TDA9873_TR_DUALA    1 << 2
 569#define TDA9873_TR_DUALB    1 << 3
 570
 571/* output level controls
 572 * B5:  output level switch (0 = reduced gain, 1 = normal gain)
 573 * B6:  mute                (1 = muted)
 574 * B7:  auto-mute           (1 = auto-mute enabled)
 575 */
 576
 577#define TDA9873_GAIN_NORMAL 1 << 5
 578#define TDA9873_MUTE        1 << 6
 579#define TDA9873_AUTOMUTE    1 << 7
 580
 581/* Subaddress 0x01:  Adjust/standard */
 582
 583/* Lower 4 bits (C3..C0) control stereo adjustment on R channel (-0.6 - +0.7 dB)
 584 * Recommended value is +0 dB
 585 */
 586
 587#define TDA9873_STEREO_ADJ      0x06 /* 0dB gain */
 588
 589/* Bits C6..C4 control FM stantard
 590 * C6, C5, C4
 591 *  0,  0,  0   B/G (PAL FM)
 592 *  0,  0,  1   M
 593 *  0,  1,  0   D/K(1)
 594 *  0,  1,  1   D/K(2)
 595 *  1,  0,  0   D/K(3)
 596 *  1,  0,  1   I
 597 */
 598#define TDA9873_BG              0
 599#define TDA9873_M       1
 600#define TDA9873_DK1     2
 601#define TDA9873_DK2     3
 602#define TDA9873_DK3     4
 603#define TDA9873_I       5
 604
 605/* C7 controls identification response time (1=fast/0=normal)
 606 */
 607#define TDA9873_IDR_NORM 0
 608#define TDA9873_IDR_FAST 1 << 7
 609
 610
 611/* Subaddress 0x02: Port data */
 612
 613/* E1, E0   free programmable ports P1/P2
 614    0,  0   both ports low
 615    0,  1   P1 high
 616    1,  0   P2 high
 617    1,  1   both ports high
 618*/
 619
 620#define TDA9873_PORTS    3
 621
 622/* E2: test port */
 623#define TDA9873_TST_PORT 1 << 2
 624
 625/* E5..E3 control mono output channel (together with transmission mode bit B4)
 626 *
 627 * E5 E4 E3 B4     OUTM
 628 *  0  0  0  0     mono
 629 *  0  0  1  0     DUAL B
 630 *  0  1  0  1     mono (from stereo decoder)
 631 */
 632#define TDA9873_MOUT_MONO   0
 633#define TDA9873_MOUT_FMONO  0
 634#define TDA9873_MOUT_DUALA  0
 635#define TDA9873_MOUT_DUALB  1 << 3
 636#define TDA9873_MOUT_ST     1 << 4
 637#define TDA9873_MOUT_EXTM   (1 << 4 ) & (1 << 3)
 638#define TDA9873_MOUT_EXTL   1 << 5
 639#define TDA9873_MOUT_EXTR   (1 << 5 ) & (1 << 3)
 640#define TDA9873_MOUT_EXTLR  (1 << 5 ) & (1 << 4)
 641#define TDA9873_MOUT_MUTE   (1 << 5 ) & (1 << 4) & (1 << 3)
 642
 643/* Status bits: (chip read) */
 644#define TDA9873_PONR        0 /* Power-on reset detected if = 1 */
 645#define TDA9873_STEREO      2 /* Stereo sound is identified     */
 646#define TDA9873_DUAL        4 /* Dual sound is identified       */
 647
 648static int tda9873_getmode(struct CHIPSTATE *chip)
 649{
 650        int val,mode;
 651
 652        val = chip_read(chip);
 653        mode = VIDEO_SOUND_MONO;
 654        if (val & TDA9873_STEREO)
 655                mode |= VIDEO_SOUND_STEREO;
 656        if (val & TDA9873_DUAL)
 657                mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
 658        v4l_dbg(1, debug, &chip->c, "tda9873_getmode(): raw chip read: %d, return: %d\n",
 659                val, mode);
 660        return mode;
 661}
 662
 663static void tda9873_setmode(struct CHIPSTATE *chip, int mode)
 664{
 665        int sw_data  = chip->shadow.bytes[TDA9873_SW+1] & ~ TDA9873_TR_MASK;
 666        /*      int adj_data = chip->shadow.bytes[TDA9873_AD+1] ; */
 667
 668        if ((sw_data & TDA9873_INP_MASK) != TDA9873_INTERNAL) {
 669                v4l_dbg(1, debug, &chip->c, "tda9873_setmode(): external input\n");
 670                return;
 671        }
 672
 673        v4l_dbg(1, debug, &chip->c, "tda9873_setmode(): chip->shadow.bytes[%d] = %d\n", TDA9873_SW+1, chip->shadow.bytes[TDA9873_SW+1]);
 674        v4l_dbg(1, debug, &chip->c, "tda9873_setmode(): sw_data  = %d\n", sw_data);
 675
 676        switch (mode) {
 677        case VIDEO_SOUND_MONO:
 678                sw_data |= TDA9873_TR_MONO;
 679                break;
 680        case VIDEO_SOUND_STEREO:
 681                sw_data |= TDA9873_TR_STEREO;
 682                break;
 683        case VIDEO_SOUND_LANG1:
 684                sw_data |= TDA9873_TR_DUALA;
 685                break;
 686        case VIDEO_SOUND_LANG2:
 687                sw_data |= TDA9873_TR_DUALB;
 688                break;
 689        default:
 690                chip->mode = 0;
 691                return;
 692        }
 693
 694        chip_write(chip, TDA9873_SW, sw_data);
 695        v4l_dbg(1, debug, &chip->c, "tda9873_setmode(): req. mode %d; chip_write: %d\n",
 696                mode, sw_data);
 697}
 698
 699static int tda9873_checkit(struct CHIPSTATE *chip)
 700{
 701        int rc;
 702
 703        if (-1 == (rc = chip_read2(chip,254)))
 704                return 0;
 705        return (rc & ~0x1f) == 0x80;
 706}
 707
 708
 709/* ---------------------------------------------------------------------- */
 710/* audio chip description - defines+functions for tda9874h and tda9874a   */
 711/* Dariusz Kowalewski <darekk@automex.pl>                                 */
 712
 713/* Subaddresses for TDA9874H and TDA9874A (slave rx) */
 714#define TDA9874A_AGCGR          0x00    /* AGC gain */
 715#define TDA9874A_GCONR          0x01    /* general config */
 716#define TDA9874A_MSR            0x02    /* monitor select */
 717#define TDA9874A_C1FRA          0x03    /* carrier 1 freq. */
 718#define TDA9874A_C1FRB          0x04    /* carrier 1 freq. */
 719#define TDA9874A_C1FRC          0x05    /* carrier 1 freq. */
 720#define TDA9874A_C2FRA          0x06    /* carrier 2 freq. */
 721#define TDA9874A_C2FRB          0x07    /* carrier 2 freq. */
 722#define TDA9874A_C2FRC          0x08    /* carrier 2 freq. */
 723#define TDA9874A_DCR            0x09    /* demodulator config */
 724#define TDA9874A_FMER           0x0a    /* FM de-emphasis */
 725#define TDA9874A_FMMR           0x0b    /* FM dematrix */
 726#define TDA9874A_C1OLAR         0x0c    /* ch.1 output level adj. */
 727#define TDA9874A_C2OLAR         0x0d    /* ch.2 output level adj. */
 728#define TDA9874A_NCONR          0x0e    /* NICAM config */
 729#define TDA9874A_NOLAR          0x0f    /* NICAM output level adj. */
 730#define TDA9874A_NLELR          0x10    /* NICAM lower error limit */
 731#define TDA9874A_NUELR          0x11    /* NICAM upper error limit */
 732#define TDA9874A_AMCONR         0x12    /* audio mute control */
 733#define TDA9874A_SDACOSR        0x13    /* stereo DAC output select */
 734#define TDA9874A_AOSR           0x14    /* analog output select */
 735#define TDA9874A_DAICONR        0x15    /* digital audio interface config */
 736#define TDA9874A_I2SOSR         0x16    /* I2S-bus output select */
 737#define TDA9874A_I2SOLAR        0x17    /* I2S-bus output level adj. */
 738#define TDA9874A_MDACOSR        0x18    /* mono DAC output select (tda9874a) */
 739#define TDA9874A_ESP            0xFF    /* easy standard progr. (tda9874a) */
 740
 741/* Subaddresses for TDA9874H and TDA9874A (slave tx) */
 742#define TDA9874A_DSR            0x00    /* device status */
 743#define TDA9874A_NSR            0x01    /* NICAM status */
 744#define TDA9874A_NECR           0x02    /* NICAM error count */
 745#define TDA9874A_DR1            0x03    /* add. data LSB */
 746#define TDA9874A_DR2            0x04    /* add. data MSB */
 747#define TDA9874A_LLRA           0x05    /* monitor level read-out LSB */
 748#define TDA9874A_LLRB           0x06    /* monitor level read-out MSB */
 749#define TDA9874A_SIFLR          0x07    /* SIF level */
 750#define TDA9874A_TR2            252     /* test reg. 2 */
 751#define TDA9874A_TR1            253     /* test reg. 1 */
 752#define TDA9874A_DIC            254     /* device id. code */
 753#define TDA9874A_SIC            255     /* software id. code */
 754
 755
 756static int tda9874a_mode = 1;           /* 0: A2, 1: NICAM */
 757static int tda9874a_GCONR = 0xc0;       /* default config. input pin: SIFSEL=0 */
 758static int tda9874a_NCONR = 0x01;       /* default NICAM config.: AMSEL=0,AMUTE=1 */
 759static int tda9874a_ESP = 0x07;         /* default standard: NICAM D/K */
 760static int tda9874a_dic = -1;           /* device id. code */
 761
 762/* insmod options for tda9874a */
 763static unsigned int tda9874a_SIF   = UNSET;
 764static unsigned int tda9874a_AMSEL = UNSET;
 765static unsigned int tda9874a_STD   = UNSET;
 766module_param(tda9874a_SIF, int, 0444);
 767module_param(tda9874a_AMSEL, int, 0444);
 768module_param(tda9874a_STD, int, 0444);
 769
 770/*
 771 * initialization table for tda9874 decoder:
 772 *  - carrier 1 freq. registers (3 bytes)
 773 *  - carrier 2 freq. registers (3 bytes)
 774 *  - demudulator config register
 775 *  - FM de-emphasis register (slow identification mode)
 776 * Note: frequency registers must be written in single i2c transfer.
 777 */
 778static struct tda9874a_MODES {
 779        char *name;
 780        audiocmd cmd;
 781} tda9874a_modelist[9] = {
 782  {     "A2, B/G",
 783        { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x77,0xA0,0x00, 0x00,0x00 }} },
 784  {     "A2, M (Korea)",
 785        { 9, { TDA9874A_C1FRA, 0x5D,0xC0,0x00, 0x62,0x6A,0xAA, 0x20,0x22 }} },
 786  {     "A2, D/K (1)",
 787        { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x82,0x60,0x00, 0x00,0x00 }} },
 788  {     "A2, D/K (2)",
 789        { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x8C,0x75,0x55, 0x00,0x00 }} },
 790  {     "A2, D/K (3)",
 791        { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x77,0xA0,0x00, 0x00,0x00 }} },
 792  {     "NICAM, I",
 793        { 9, { TDA9874A_C1FRA, 0x7D,0x00,0x00, 0x88,0x8A,0xAA, 0x08,0x33 }} },
 794  {     "NICAM, B/G",
 795        { 9, { TDA9874A_C1FRA, 0x72,0x95,0x55, 0x79,0xEA,0xAA, 0x08,0x33 }} },
 796  {     "NICAM, D/K", /* default */
 797        { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x08,0x33 }} },
 798  {     "NICAM, L",
 799        { 9, { TDA9874A_C1FRA, 0x87,0x6A,0xAA, 0x79,0xEA,0xAA, 0x09,0x33 }} }
 800};
 801
 802static int tda9874a_setup(struct CHIPSTATE *chip)
 803{
 804        chip_write(chip, TDA9874A_AGCGR, 0x00); /* 0 dB */
 805        chip_write(chip, TDA9874A_GCONR, tda9874a_GCONR);
 806        chip_write(chip, TDA9874A_MSR, (tda9874a_mode) ? 0x03:0x02);
 807        if(tda9874a_dic == 0x11) {
 808                chip_write(chip, TDA9874A_FMMR, 0x80);
 809        } else { /* dic == 0x07 */
 810                chip_cmd(chip,"tda9874_modelist",&tda9874a_modelist[tda9874a_STD].cmd);
 811                chip_write(chip, TDA9874A_FMMR, 0x00);
 812        }
 813        chip_write(chip, TDA9874A_C1OLAR, 0x00); /* 0 dB */
 814        chip_write(chip, TDA9874A_C2OLAR, 0x00); /* 0 dB */
 815        chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
 816        chip_write(chip, TDA9874A_NOLAR, 0x00); /* 0 dB */
 817        /* Note: If signal quality is poor you may want to change NICAM */
 818        /* error limit registers (NLELR and NUELR) to some greater values. */
 819        /* Then the sound would remain stereo, but won't be so clear. */
 820        chip_write(chip, TDA9874A_NLELR, 0x14); /* default */
 821        chip_write(chip, TDA9874A_NUELR, 0x50); /* default */
 822
 823        if(tda9874a_dic == 0x11) {
 824                chip_write(chip, TDA9874A_AMCONR, 0xf9);
 825                chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
 826                chip_write(chip, TDA9874A_AOSR, 0x80);
 827                chip_write(chip, TDA9874A_MDACOSR, (tda9874a_mode) ? 0x82:0x80);
 828                chip_write(chip, TDA9874A_ESP, tda9874a_ESP);
 829        } else { /* dic == 0x07 */
 830                chip_write(chip, TDA9874A_AMCONR, 0xfb);
 831                chip_write(chip, TDA9874A_SDACOSR, (tda9874a_mode) ? 0x81:0x80);
 832                chip_write(chip, TDA9874A_AOSR, 0x00); /* or 0x10 */
 833        }
 834        v4l_dbg(1, debug, &chip->c, "tda9874a_setup(): %s [0x%02X].\n",
 835                tda9874a_modelist[tda9874a_STD].name,tda9874a_STD);
 836        return 1;
 837}
 838
 839static int tda9874a_getmode(struct CHIPSTATE *chip)
 840{
 841        int dsr,nsr,mode;
 842        int necr; /* just for debugging */
 843
 844        mode = VIDEO_SOUND_MONO;
 845
 846        if(-1 == (dsr = chip_read2(chip,TDA9874A_DSR)))
 847                return mode;
 848        if(-1 == (nsr = chip_read2(chip,TDA9874A_NSR)))
 849                return mode;
 850        if(-1 == (necr = chip_read2(chip,TDA9874A_NECR)))
 851                return mode;
 852
 853        /* need to store dsr/nsr somewhere */
 854        chip->shadow.bytes[MAXREGS-2] = dsr;
 855        chip->shadow.bytes[MAXREGS-1] = nsr;
 856
 857        if(tda9874a_mode) {
 858                /* Note: DSR.RSSF and DSR.AMSTAT bits are also checked.
 859                 * If NICAM auto-muting is enabled, DSR.AMSTAT=1 indicates
 860                 * that sound has (temporarily) switched from NICAM to
 861                 * mono FM (or AM) on 1st sound carrier due to high NICAM bit
 862                 * error count. So in fact there is no stereo in this case :-(
 863                 * But changing the mode to VIDEO_SOUND_MONO would switch
 864                 * external 4052 multiplexer in audio_hook().
 865                 */
 866                if(nsr & 0x02) /* NSR.S/MB=1 */
 867                        mode |= VIDEO_SOUND_STEREO;
 868                if(nsr & 0x01) /* NSR.D/SB=1 */
 869                        mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
 870        } else {
 871                if(dsr & 0x02) /* DSR.IDSTE=1 */
 872                        mode |= VIDEO_SOUND_STEREO;
 873                if(dsr & 0x04) /* DSR.IDDUA=1 */
 874                        mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
 875        }
 876
 877        v4l_dbg(1, debug, &chip->c, "tda9874a_getmode(): DSR=0x%X, NSR=0x%X, NECR=0x%X, return: %d.\n",
 878                 dsr, nsr, necr, mode);
 879        return mode;
 880}
 881
 882static void tda9874a_setmode(struct CHIPSTATE *chip, int mode)
 883{
 884        /* Disable/enable NICAM auto-muting (based on DSR.RSSF status bit). */
 885        /* If auto-muting is disabled, we can hear a signal of degrading quality. */
 886        if(tda9874a_mode) {
 887                if(chip->shadow.bytes[MAXREGS-2] & 0x20) /* DSR.RSSF=1 */
 888                        tda9874a_NCONR &= 0xfe; /* enable */
 889                else
 890                        tda9874a_NCONR |= 0x01; /* disable */
 891                chip_write(chip, TDA9874A_NCONR, tda9874a_NCONR);
 892        }
 893
 894        /* Note: TDA9874A supports automatic FM dematrixing (FMMR register)
 895         * and has auto-select function for audio output (AOSR register).
 896         * Old TDA9874H doesn't support these features.
 897         * TDA9874A also has additional mono output pin (OUTM), which
 898         * on same (all?) tv-cards is not used, anyway (as well as MONOIN).
 899         */
 900        if(tda9874a_dic == 0x11) {
 901                int aosr = 0x80;
 902                int mdacosr = (tda9874a_mode) ? 0x82:0x80;
 903
 904                switch(mode) {
 905                case VIDEO_SOUND_MONO:
 906                case VIDEO_SOUND_STEREO:
 907                        break;
 908                case VIDEO_SOUND_LANG1:
 909                        aosr = 0x80; /* auto-select, dual A/A */
 910                        mdacosr = (tda9874a_mode) ? 0x82:0x80;
 911                        break;
 912                case VIDEO_SOUND_LANG2:
 913                        aosr = 0xa0; /* auto-select, dual B/B */
 914                        mdacosr = (tda9874a_mode) ? 0x83:0x81;
 915                        break;
 916                default:
 917                        chip->mode = 0;
 918                        return;
 919                }
 920                chip_write(chip, TDA9874A_AOSR, aosr);
 921                chip_write(chip, TDA9874A_MDACOSR, mdacosr);
 922
 923                v4l_dbg(1, debug, &chip->c, "tda9874a_setmode(): req. mode %d; AOSR=0x%X, MDACOSR=0x%X.\n",
 924                        mode, aosr, mdacosr);
 925
 926        } else { /* dic == 0x07 */
 927                int fmmr,aosr;
 928
 929                switch(mode) {
 930                case VIDEO_SOUND_MONO:
 931                        fmmr = 0x00; /* mono */
 932                        aosr = 0x10; /* A/A */
 933                        break;
 934                case VIDEO_SOUND_STEREO:
 935                        if(tda9874a_mode) {
 936                                fmmr = 0x00;
 937                                aosr = 0x00; /* handled by NICAM auto-mute */
 938                        } else {
 939                                fmmr = (tda9874a_ESP == 1) ? 0x05 : 0x04; /* stereo */
 940                                aosr = 0x00;
 941                        }
 942                        break;
 943                case VIDEO_SOUND_LANG1:
 944                        fmmr = 0x02; /* dual */
 945                        aosr = 0x10; /* dual A/A */
 946                        break;
 947                case VIDEO_SOUND_LANG2:
 948                        fmmr = 0x02; /* dual */
 949                        aosr = 0x20; /* dual B/B */
 950                        break;
 951                default:
 952                        chip->mode = 0;
 953                        return;
 954                }
 955                chip_write(chip, TDA9874A_FMMR, fmmr);
 956                chip_write(chip, TDA9874A_AOSR, aosr);
 957
 958                v4l_dbg(1, debug, &chip->c, "tda9874a_setmode(): req. mode %d; FMMR=0x%X, AOSR=0x%X.\n",
 959                        mode, fmmr, aosr);
 960        }
 961}
 962
 963static int tda9874a_checkit(struct CHIPSTATE *chip)
 964{
 965        int dic,sic;    /* device id. and software id. codes */
 966
 967        if(-1 == (dic = chip_read2(chip,TDA9874A_DIC)))
 968                return 0;
 969        if(-1 == (sic = chip_read2(chip,TDA9874A_SIC)))
 970                return 0;
 971
 972        v4l_dbg(1, debug, &chip->c, "tda9874a_checkit(): DIC=0x%X, SIC=0x%X.\n", dic, sic);
 973
 974        if((dic == 0x11)||(dic == 0x07)) {
 975                v4l_info(&chip->c, "found tda9874%s.\n", (dic == 0x11) ? "a":"h");
 976                tda9874a_dic = dic;     /* remember device id. */
 977                return 1;
 978        }
 979        return 0;       /* not found */
 980}
 981
 982static int tda9874a_initialize(struct CHIPSTATE *chip)
 983{
 984        if (tda9874a_SIF > 2)
 985                tda9874a_SIF = 1;
 986        if (tda9874a_STD > 8)
 987                tda9874a_STD = 0;
 988        if(tda9874a_AMSEL > 1)
 989                tda9874a_AMSEL = 0;
 990
 991        if(tda9874a_SIF == 1)
 992                tda9874a_GCONR = 0xc0;  /* sound IF input 1 */
 993        else
 994                tda9874a_GCONR = 0xc1;  /* sound IF input 2 */
 995
 996        tda9874a_ESP = tda9874a_STD;
 997        tda9874a_mode = (tda9874a_STD < 5) ? 0 : 1;
 998
 999        if(tda9874a_AMSEL == 0)
1000                tda9874a_NCONR = 0x01; /* auto-mute: analog mono input */

1001        else
1002                tda9874a_NCONR = 0x05; /* auto-mute: 1st carrier FM or AM */
1003
1004        tda9874a_setup(chip);
1005        return 0;
1006}
1007
1008
1009/* ---------------------------------------------------------------------- */
1010/* audio chip descriptions - defines+functions for tea6420                */
1011
1012#define TEA6300_VL         0x00  /* volume left */
1013#define TEA6300_VR         0x01  /* volume right */
1014#define TEA6300_BA         0x02  /* bass */
1015#define TEA6300_TR         0x03  /* treble */
1016#define TEA6300_FA         0x04  /* fader control */
1017#define TEA6300_S          0x05  /* switch register */
1018                                 /* values for those registers: */
1019#define TEA6300_S_SA       0x01  /* stereo A input */
1020#define TEA6300_S_SB       0x02  /* stereo B */
1021#define TEA6300_S_SC       0x04  /* stereo C */
1022#define TEA6300_S_GMU      0x80  /* general mute */
1023
1024#define TEA6320_V          0x00  /* volume (0-5)/loudness off (6)/zero crossing mute(7) */
1025#define TEA6320_FFR        0x01  /* fader front right (0-5) */
1026#define TEA6320_FFL        0x02  /* fader front left (0-5) */
1027#define TEA6320_FRR        0x03  /* fader rear right (0-5) */
1028#define TEA6320_FRL        0x04  /* fader rear left (0-5) */
1029#define TEA6320_BA         0x05  /* bass (0-4) */
1030#define TEA6320_TR         0x06  /* treble (0-4) */
1031#define TEA6320_S          0x07  /* switch register */
1032                                 /* values for those registers: */
1033#define TEA6320_S_SA       0x07  /* stereo A input */
1034#define TEA6320_S_SB       0x06  /* stereo B */
1035#define TEA6320_S_SC       0x05  /* stereo C */
1036#define TEA6320_S_SD       0x04  /* stereo D */
1037#define TEA6320_S_GMU      0x80  /* general mute */
1038
1039#define TEA6420_S_SA       0x00  /* stereo A input */
1040#define TEA6420_S_SB       0x01  /* stereo B */
1041#define TEA6420_S_SC       0x02  /* stereo C */
1042#define TEA6420_S_SD       0x03  /* stereo D */
1043#define TEA6420_S_SE       0x04  /* stereo E */
1044#define TEA6420_S_GMU      0x05  /* general mute */
1045
1046static int tea6300_shift10(int val) { return val >> 10; }
1047static int tea6300_shift12(int val) { return val >> 12; }
1048
1049/* Assumes 16bit input (values 0x3f to 0x0c are unique, values less than */
1050/* 0x0c mirror those immediately higher) */
1051static int tea6320_volume(int val) { return (val / (65535/(63-12)) + 12) & 0x3f; }
1052static int tea6320_shift11(int val) { return val >> 11; }
1053static int tea6320_initialize(struct CHIPSTATE * chip)
1054{
1055        chip_write(chip, TEA6320_FFR, 0x3f);
1056        chip_write(chip, TEA6320_FFL, 0x3f);
1057        chip_write(chip, TEA6320_FRR, 0x3f);
1058        chip_write(chip, TEA6320_FRL, 0x3f);
1059
1060        return 0;
1061}
1062
1063
1064/* ---------------------------------------------------------------------- */
1065/* audio chip descriptions - defines+functions for tda8425                */
1066
1067#define TDA8425_VL         0x00  /* volume left */
1068#define TDA8425_VR         0x01  /* volume right */
1069#define TDA8425_BA         0x02  /* bass */
1070#define TDA8425_TR         0x03  /* treble */
1071#define TDA8425_S1         0x08  /* switch functions */
1072                                 /* values for those registers: */
1073#define TDA8425_S1_OFF     0xEE  /* audio off (mute on) */
1074#define TDA8425_S1_CH1     0xCE  /* audio channel 1 (mute off) - "linear stereo" mode */
1075#define TDA8425_S1_CH2     0xCF  /* audio channel 2 (mute off) - "linear stereo" mode */
1076#define TDA8425_S1_MU      0x20  /* mute bit */
1077#define TDA8425_S1_STEREO  0x18  /* stereo bits */
1078#define TDA8425_S1_STEREO_SPATIAL 0x18 /* spatial stereo */
1079#define TDA8425_S1_STEREO_LINEAR  0x08 /* linear stereo */
1080#define TDA8425_S1_STEREO_PSEUDO  0x10 /* pseudo stereo */
1081#define TDA8425_S1_STEREO_MONO    0x00 /* forced mono */
1082#define TDA8425_S1_ML      0x06        /* language selector */
1083#define TDA8425_S1_ML_SOUND_A 0x02     /* sound a */
1084#define TDA8425_S1_ML_SOUND_B 0x04     /* sound b */
1085#define TDA8425_S1_ML_STEREO  0x06     /* stereo */
1086#define TDA8425_S1_IS      0x01        /* channel selector */
1087
1088
1089static int tda8425_shift10(int val) { return (val >> 10) | 0xc0; }
1090static int tda8425_shift12(int val) { return (val >> 12) | 0xf0; }
1091
1092static int tda8425_initialize(struct CHIPSTATE *chip)
1093{
1094        struct CHIPDESC *desc = chiplist + chip->type;
1095        int inputmap[4] = { /* tuner    */ TDA8425_S1_CH2, /* radio  */ TDA8425_S1_CH1,
1096                            /* extern   */ TDA8425_S1_CH1, /* intern */ TDA8425_S1_OFF};
1097
1098        if (chip->c.adapter->id == I2C_HW_B_RIVA) {
1099                memcpy (desc->inputmap, inputmap, sizeof (inputmap));
1100        }
1101        return 0;
1102}
1103
1104static void tda8425_setmode(struct CHIPSTATE *chip, int mode)
1105{
1106        int s1 = chip->shadow.bytes[TDA8425_S1+1] & 0xe1;
1107
1108        if (mode & VIDEO_SOUND_LANG1) {
1109                s1 |= TDA8425_S1_ML_SOUND_A;
1110                s1 |= TDA8425_S1_STEREO_PSEUDO;
1111
1112        } else if (mode & VIDEO_SOUND_LANG2) {
1113                s1 |= TDA8425_S1_ML_SOUND_B;
1114                s1 |= TDA8425_S1_STEREO_PSEUDO;
1115
1116        } else {
1117                s1 |= TDA8425_S1_ML_STEREO;
1118
1119                if (mode & VIDEO_SOUND_MONO)
1120                        s1 |= TDA8425_S1_STEREO_MONO;
1121                if (mode & VIDEO_SOUND_STEREO)
1122                        s1 |= TDA8425_S1_STEREO_SPATIAL;
1123        }
1124        chip_write(chip,TDA8425_S1,s1);
1125}
1126
1127
1128/* ---------------------------------------------------------------------- */
1129/* audio chip descriptions - defines+functions for pic16c54 (PV951)       */
1130
1131/* the registers of 16C54, I2C sub address. */
1132#define PIC16C54_REG_KEY_CODE     0x01         /* Not use. */
1133#define PIC16C54_REG_MISC         0x02
1134
1135/* bit definition of the RESET register, I2C data. */
1136#define PIC16C54_MISC_RESET_REMOTE_CTL 0x01 /* bit 0, Reset to receive the key */
1137                                            /*        code of remote controller */
1138#define PIC16C54_MISC_MTS_MAIN         0x02 /* bit 1 */
1139#define PIC16C54_MISC_MTS_SAP          0x04 /* bit 2 */
1140#define PIC16C54_MISC_MTS_BOTH         0x08 /* bit 3 */
1141#define PIC16C54_MISC_SND_MUTE         0x10 /* bit 4, Mute Audio(Line-in and Tuner) */
1142#define PIC16C54_MISC_SND_NOTMUTE      0x20 /* bit 5 */
1143#define PIC16C54_MISC_SWITCH_TUNER     0x40 /* bit 6    , Switch to Line-in */
1144#define PIC16C54_MISC_SWITCH_LINE      0x80 /* bit 7    , Switch to Tuner */
1145
1146/* ---------------------------------------------------------------------- */
1147/* audio chip descriptions - defines+functions for TA8874Z                */
1148
1149/* write 1st byte */
1150#define TA8874Z_LED_STE 0x80
1151#define TA8874Z_LED_BIL 0x40
1152#define TA8874Z_LED_EXT 0x20
1153#define TA8874Z_MONO_SET        0x10
1154#define TA8874Z_MUTE    0x08
1155#define TA8874Z_F_MONO  0x04
1156#define TA8874Z_MODE_SUB        0x02
1157#define TA8874Z_MODE_MAIN       0x01
1158
1159/* write 2nd byte */
1160/*#define TA8874Z_TI    0x80  */ /* test mode */
1161#define TA8874Z_SEPARATION      0x3f
1162#define TA8874Z_SEPARATION_DEFAULT      0x10
1163
1164/* read */
1165#define TA8874Z_B1      0x80
1166#define TA8874Z_B0      0x40
1167#define TA8874Z_CHAG_FLAG       0x20
1168
1169/*
1170 *        B1 B0
1171 * mono    L  H
1172 * stereo  L  L
1173 * BIL     H  L
1174 */
1175static int ta8874z_getmode(struct CHIPSTATE *chip)
1176{
1177        int val, mode;
1178
1179        val = chip_read(chip);
1180        mode = VIDEO_SOUND_MONO;
1181        if (val & TA8874Z_B1){
1182                mode |= VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
1183        }else if (!(val & TA8874Z_B0)){
1184                mode |= VIDEO_SOUND_STEREO;
1185        }
1186        /* v4l_dbg(1, debug, &chip->c, "ta8874z_getmode(): raw chip read: 0x%02x, return: 0x%02x\n", val, mode); */
1187        return mode;
1188}
1189
1190static audiocmd ta8874z_stereo = { 2, {0, TA8874Z_SEPARATION_DEFAULT}};
1191static audiocmd ta8874z_mono = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}};
1192static audiocmd ta8874z_main = {2, { 0, TA8874Z_SEPARATION_DEFAULT}};
1193static audiocmd ta8874z_sub = {2, { TA8874Z_MODE_SUB, TA8874Z_SEPARATION_DEFAULT}};
1194
1195static void ta8874z_setmode(struct CHIPSTATE *chip, int mode)
1196{
1197        int update = 1;
1198        audiocmd *t = NULL;
1199        v4l_dbg(1, debug, &chip->c, "ta8874z_setmode(): mode: 0x%02x\n", mode);
1200
1201        switch(mode){
1202        case VIDEO_SOUND_MONO:
1203                t = &ta8874z_mono;
1204                break;
1205        case VIDEO_SOUND_STEREO:
1206                t = &ta8874z_stereo;
1207                break;
1208        case VIDEO_SOUND_LANG1:
1209                t = &ta8874z_main;
1210                break;
1211        case VIDEO_SOUND_LANG2:
1212                t = &ta8874z_sub;
1213                break;
1214        default:
1215                update = 0;
1216        }
1217
1218        if(update)
1219                chip_cmd(chip, "TA8874Z", t);
1220}
1221
1222static int ta8874z_checkit(struct CHIPSTATE *chip)
1223{
1224        int rc;
1225        rc = chip_read(chip);
1226        return ((rc & 0x1f) == 0x1f) ? 1 : 0;
1227}
1228
1229/* ---------------------------------------------------------------------- */
1230/* audio chip descriptions - struct CHIPDESC                              */
1231
1232/* insmod options to enable/disable individual audio chips */
1233static int tda8425  = 1;
1234static int tda9840  = 1;
1235static int tda9850  = 1;
1236static int tda9855  = 1;
1237static int tda9873  = 1;
1238static int tda9874a = 1;
1239static int tea6300  = 0;  /* address clash with msp34xx */
1240static int tea6320  = 0;  /* address clash with msp34xx */
1241static int tea6420  = 1;
1242static int pic16c54 = 1;
1243static int ta8874z  = 0;  /* address clash with tda9840 */
1244
1245module_param(tda8425, int, 0444);
1246module_param(tda9840, int, 0444);
1247module_param(tda9850, int, 0444);
1248module_param(tda9855, int, 0444);
1249module_param(tda9873, int, 0444);
1250module_param(tda9874a, int, 0444);
1251module_param(tea6300, int, 0444);
1252module_param(tea6320, int, 0444);
1253module_param(tea6420, int, 0444);
1254module_param(pic16c54, int, 0444);
1255module_param(ta8874z, int, 0444);
1256
1257static struct CHIPDESC chiplist[] = {
1258        {
1259                .name       = "tda9840",
1260                .id         = I2C_DRIVERID_TDA9840,
1261                .insmodopt  = &tda9840,
1262                .addr_lo    = I2C_ADDR_TDA9840 >> 1,
1263                .addr_hi    = I2C_ADDR_TDA9840 >> 1,
1264                .registers  = 5,
1265
1266                .checkit    = tda9840_checkit,
1267                .getmode    = tda9840_getmode,
1268                .setmode    = tda9840_setmode,
1269                .checkmode  = generic_checkmode,
1270
1271                .init       = { 2, { TDA9840_TEST, TDA9840_TEST_INT1SN
1272                                /* ,TDA9840_SW, TDA9840_MONO */} }
1273        },
1274        {
1275                .name       = "tda9873h",
1276                .id         = I2C_DRIVERID_TDA9873,
1277                .checkit    = tda9873_checkit,
1278                .insmodopt  = &tda9873,
1279                .addr_lo    = I2C_ADDR_TDA985x_L >> 1,
1280                .addr_hi    = I2C_ADDR_TDA985x_H >> 1,
1281                .registers  = 3,
1282                .flags      = CHIP_HAS_INPUTSEL,
1283
1284                .getmode    = tda9873_getmode,
1285                .setmode    = tda9873_setmode,
1286                .checkmode  = generic_checkmode,
1287
1288                .init       = { 4, { TDA9873_SW, 0xa4, 0x06, 0x03 } },
1289                .inputreg   = TDA9873_SW,
1290                .inputmute  = TDA9873_MUTE | TDA9873_AUTOMUTE,
1291                .inputmap   = {0xa0, 0xa2, 0xa0, 0xa0},
1292                .inputmask  = TDA9873_INP_MASK|TDA9873_MUTE|TDA9873_AUTOMUTE,
1293
1294        },
1295        {
1296                .name       = "tda9874h/a",
1297                .id         = I2C_DRIVERID_TDA9874,
1298                .checkit    = tda9874a_checkit,
1299                .initialize = tda9874a_initialize,
1300                .insmodopt  = &tda9874a,
1301                .addr_lo    = I2C_ADDR_TDA9874 >> 1,
1302                .addr_hi    = I2C_ADDR_TDA9874 >> 1,
1303
1304                .getmode    = tda9874a_getmode,
1305                .setmode    = tda9874a_setmode,
1306                .checkmode  = generic_checkmode,
1307        },
1308        {
1309                .name       = "tda9850",
1310                .id         = I2C_DRIVERID_TDA9850,
1311                .insmodopt  = &tda9850,
1312                .addr_lo    = I2C_ADDR_TDA985x_L >> 1,
1313                .addr_hi    = I2C_ADDR_TDA985x_H >> 1,
1314                .registers  = 11,
1315
1316                .getmode    = tda985x_getmode,
1317                .setmode    = tda985x_setmode,
1318
1319                .init       = { 8, { TDA9850_C4, 0x08, 0x08, TDA985x_STEREO, 0x07, 0x10, 0x10, 0x03 } }
1320        },
1321        {
1322                .name       = "tda9855",
1323                .id         = I2C_DRIVERID_TDA9855,
1324                .insmodopt  = &tda9855,
1325                .addr_lo    = I2C_ADDR_TDA985x_L >> 1,
1326                .addr_hi    = I2C_ADDR_TDA985x_H >> 1,
1327                .registers  = 11,
1328                .flags      = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE,
1329
1330                .leftreg    = TDA9855_VL,
1331                .rightreg   = TDA9855_VR,
1332                .bassreg    = TDA9855_BA,
1333                .treblereg  = TDA9855_TR,
1334                .volfunc    = tda9855_volume,
1335                .bassfunc   = tda9855_bass,
1336                .treblefunc = tda9855_treble,
1337
1338                .getmode    = tda985x_getmode,
1339                .setmode    = tda985x_setmode,
1340
1341                .init       = { 12, { 0, 0x6f, 0x6f, 0x0e, 0x07<<1, 0x8<<2,
1342                                    TDA9855_MUTE | TDA9855_AVL | TDA9855_LOUD | TDA9855_INT,
1343                                    TDA985x_STEREO | TDA9855_LINEAR | TDA9855_TZCM | TDA9855_VZCM,
1344                                    0x07, 0x10, 0x10, 0x03 }}
1345        },
1346        {
1347                .name       = "tea6300",
1348                .id         = I2C_DRIVERID_TEA6300,
1349                .insmodopt  = &tea6300,
1350                .addr_lo    = I2C_ADDR_TEA6300 >> 1,
1351                .addr_hi    = I2C_ADDR_TEA6300 >> 1,
1352                .registers  = 6,
1353                .flags      = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1354
1355                .leftreg    = TEA6300_VR,
1356                .rightreg   = TEA6300_VL,
1357                .bassreg    = TEA6300_BA,
1358                .treblereg  = TEA6300_TR,
1359                .volfunc    = tea6300_shift10,
1360                .bassfunc   = tea6300_shift12,
1361                .treblefunc = tea6300_shift12,
1362
1363                .inputreg   = TEA6300_S,
1364                .inputmap   = { TEA6300_S_SA, TEA6300_S_SB, TEA6300_S_SC },
1365                .inputmute  = TEA6300_S_GMU,
1366        },
1367        {
1368                .name       = "tea6320",
1369                .id         = I2C_DRIVERID_TEA6300,
1370                .initialize = tea6320_initialize,
1371                .insmodopt  = &tea6320,
1372                .addr_lo    = I2C_ADDR_TEA6300 >> 1,
1373                .addr_hi    = I2C_ADDR_TEA6300 >> 1,
1374                .registers  = 8,
1375                .flags      = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1376
1377                .leftreg    = TEA6320_V,
1378                .rightreg   = TEA6320_V,
1379                .bassreg    = TEA6320_BA,
1380                .treblereg  = TEA6320_TR,
1381                .volfunc    = tea6320_volume,
1382                .bassfunc   = tea6320_shift11,
1383                .treblefunc = tea6320_shift11,
1384
1385                .inputreg   = TEA6320_S,
1386                .inputmap   = { TEA6320_S_SA, TEA6420_S_SB, TEA6300_S_SC, TEA6320_S_SD },
1387                .inputmute  = TEA6300_S_GMU,
1388        },
1389        {
1390                .name       = "tea6420",
1391                .id         = I2C_DRIVERID_TEA6420,
1392                .insmodopt  = &tea6420,
1393                .addr_lo    = I2C_ADDR_TEA6420 >> 1,
1394                .addr_hi    = I2C_ADDR_TEA6420 >> 1,
1395                .registers  = 1,
1396                .flags      = CHIP_HAS_INPUTSEL,
1397
1398                .inputreg   = -1,
1399                .inputmap   = { TEA6420_S_SA, TEA6420_S_SB, TEA6420_S_SC },
1400                .inputmute  = TEA6300_S_GMU,
1401        },
1402        {
1403                .name       = "tda8425",
1404                .id         = I2C_DRIVERID_TDA8425,
1405                .insmodopt  = &tda8425,
1406                .addr_lo    = I2C_ADDR_TDA8425 >> 1,
1407                .addr_hi    = I2C_ADDR_TDA8425 >> 1,
1408                .registers  = 9,
1409                .flags      = CHIP_HAS_VOLUME | CHIP_HAS_BASSTREBLE | CHIP_HAS_INPUTSEL,
1410
1411                .leftreg    = TDA8425_VL,
1412                .rightreg   = TDA8425_VR,
1413                .bassreg    = TDA8425_BA,
1414                .treblereg  = TDA8425_TR,
1415                .volfunc    = tda8425_shift10,
1416                .bassfunc   = tda8425_shift12,
1417                .treblefunc = tda8425_shift12,
1418
1419                .inputreg   = TDA8425_S1,
1420                .inputmap   = { TDA8425_S1_CH1, TDA8425_S1_CH1, TDA8425_S1_CH1 },
1421                .inputmute  = TDA8425_S1_OFF,
1422
1423                .setmode    = tda8425_setmode,
1424                .initialize = tda8425_initialize,
1425        },
1426        {
1427                .name       = "pic16c54 (PV951)",
1428                .id         = I2C_DRIVERID_PIC16C54_PV9,
1429                .insmodopt  = &pic16c54,
1430                .addr_lo    = I2C_ADDR_PIC16C54 >> 1,
1431                .addr_hi    = I2C_ADDR_PIC16C54>> 1,
1432                .registers  = 2,
1433                .flags      = CHIP_HAS_INPUTSEL,
1434
1435                .inputreg   = PIC16C54_REG_MISC,
1436                .inputmap   = {PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_TUNER,
1437                             PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1438                             PIC16C54_MISC_SND_NOTMUTE|PIC16C54_MISC_SWITCH_LINE,
1439                             PIC16C54_MISC_SND_MUTE},
1440                .inputmute  = PIC16C54_MISC_SND_MUTE,
1441        },
1442        {
1443                .name       = "ta8874z",
1444                .id         = -1,
1445                /*.id         = I2C_DRIVERID_TA8874Z, */
1446                .checkit    = ta8874z_checkit,
1447                .insmodopt  = &ta8874z,
1448                .addr_lo    = I2C_ADDR_TDA9840 >> 1,
1449                .addr_hi    = I2C_ADDR_TDA9840 >> 1,
1450                .registers  = 2,
1451
1452                .getmode    = ta8874z_getmode,
1453                .setmode    = ta8874z_setmode,
1454                .checkmode  = generic_checkmode,
1455
1456                .init       = {2, { TA8874Z_MONO_SET, TA8874Z_SEPARATION_DEFAULT}},
1457        },
1458        { .name = NULL } /* EOF */
1459};
1460
1461
1462/* ---------------------------------------------------------------------- */
1463/* i2c registration                                                       */
1464
1465static int chip_attach(struct i2c_adapter *adap, int addr, int kind)
1466{
1467        struct CHIPSTATE *chip;
1468        struct CHIPDESC  *desc;
1469
1470        chip = kzalloc(sizeof(*chip),GFP_KERNEL);
1471        if (!chip)
1472                return -ENOMEM;
1473        memcpy(&chip->c,&client_template,sizeof(struct i2c_client));
1474        chip->c.adapter = adap;
1475        chip->c.addr = addr;
1476        i2c_set_clientdata(&chip->c, chip);
1477
1478        /* find description for the chip */
1479        v4l_dbg(1, debug, &chip->c, "chip found @ 0x%x\n", addr<<1);
1480        for (desc = chiplist; desc->name != NULL; desc++) {
1481                if (0 == *(desc->insmodopt))
1482                        continue;
1483                if (addr < desc->addr_lo ||
1484                    addr > desc->addr_hi)
1485                        continue;
1486                if (desc->checkit && !desc->checkit(chip))
1487                        continue;
1488                break;
1489        }
1490        if (desc->name == NULL) {
1491                v4l_dbg(1, debug, &chip->c, "no matching chip description found\n");
1492                return -EIO;
1493        }
1494        v4l_info(&chip->c, "%s found @ 0x%x (%s)\n", desc->name, addr<<1, adap->name);
1495        if (desc->flags) {
1496                v4l_dbg(1, debug, &chip->c, "matches:%s%s%s.\n",
1497                        (desc->flags & CHIP_HAS_VOLUME)     ? " volume"      : "",
1498                        (desc->flags & CHIP_HAS_BASSTREBLE) ? " bass/treble" : "",
1499                        (desc->flags & CHIP_HAS_INPUTSEL)   ? " audiomux"    : "");
1500        }
1501
1502        /* fill required data structures */
1503        strcpy(chip->c.name, desc->name);
1504        chip->type = desc-chiplist;
1505        chip->shadow.count = desc->registers+1;
1506        chip->prevmode = -1;
1507        chip->audmode = V4L2_TUNER_MODE_LANG1;
1508        /* register */
1509        i2c_attach_client(&chip->c);
1510
1511        /* initialization  */
1512        if (desc->initialize != NULL)
1513                desc->initialize(chip);
1514        else
1515                chip_cmd(chip,"init",&desc->init);
1516
1517        if (desc->flags & CHIP_HAS_VOLUME) {
1518                chip->left   = desc->leftinit   ? desc->leftinit   : 65535;
1519                chip->right  = desc->rightinit  ? desc->rightinit  : 65535;
1520                chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1521                chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1522        }
1523        if (desc->flags & CHIP_HAS_BASSTREBLE) {
1524                chip->treble = desc->trebleinit ? desc->trebleinit : 32768;
1525                chip->bass   = desc->bassinit   ? desc->bassinit   : 32768;
1526                chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1527                chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1528        }
1529
1530        chip->thread = NULL;
1531        if (desc->checkmode) {
1532                /* start async thread */
1533                init_timer(&chip->wt);
1534                chip->wt.function = chip_thread_wake;
1535                chip->wt.data     = (unsigned long)chip;
1536                chip->thread = kthread_run(chip_thread, chip, chip->c.name);
1537                if (IS_ERR(chip->thread)) {
1538                        v4l_warn(&chip->c, "%s: failed to create kthread\n",
1539                               chip->c.name);
1540                        chip->thread = NULL;
1541                }
1542        }
1543        return 0;
1544}
1545
1546static int chip_probe(struct i2c_adapter *adap)
1547{
1548        /* don't attach on saa7146 based cards,
1549           because dedicated drivers are used */
1550        if ((adap->id == I2C_HW_SAA7146))
1551                return 0;
1552        if (adap->class & I2C_CLASS_TV_ANALOG)
1553                return i2c_probe(adap, &addr_data, chip_attach);
1554        return 0;
1555}
1556
1557static int chip_detach(struct i2c_client *client)
1558{
1559        struct CHIPSTATE *chip = i2c_get_clientdata(client);
1560
1561        del_timer_sync(&chip->wt);
1562        if (chip->thread) {
1563                /* shutdown async thread */
1564                kthread_stop(chip->thread);
1565                chip->thread = NULL;
1566        }
1567
1568        i2c_detach_client(&chip->c);
1569        kfree(chip);
1570        return 0;
1571}
1572
1573static int tvaudio_set_ctrl(struct CHIPSTATE *chip, struct v4l2_control *ctrl)
1574{
1575        struct CHIPDESC *desc = chiplist + chip->type;
1576
1577        switch (ctrl->id) {
1578        case V4L2_CID_AUDIO_MUTE:
1579                if (ctrl->value < 0 || ctrl->value >= 2)
1580                        return -ERANGE;
1581                chip->muted = ctrl->value;
1582                if (chip->muted)
1583                        chip_write_masked(chip,desc->inputreg,desc->inputmute,desc->inputmask);
1584                else
1585                        chip_write_masked(chip,desc->inputreg,
1586                                        desc->inputmap[chip->input],desc->inputmask);
1587                break;
1588        default:
1589                return -EINVAL;
1590        }
1591        return 0;
1592}
1593
1594
1595/* ---------------------------------------------------------------------- */
1596/* video4linux interface                                                  */
1597
1598static int chip_command(struct i2c_client *client,
1599                        unsigned int cmd, void *arg)
1600{
1601        struct CHIPSTATE *chip = i2c_get_clientdata(client);
1602        struct CHIPDESC  *desc = chiplist + chip->type;
1603
1604        v4l_dbg(1, debug, &chip->c, "%s: chip_command 0x%x\n", chip->c.name, cmd);
1605
1606        switch (cmd) {
1607        case AUDC_SET_RADIO:
1608                chip->radio = 1;
1609                chip->watch_stereo = 0;
1610                /* del_timer(&chip->wt); */
1611                break;
1612
1613        /* --- v4l ioctls --- */
1614        /* take care: bttv does userspace copying, we'll get a
1615        kernel pointer here... */
1616        case VIDIOCGAUDIO:
1617        {
1618                struct video_audio *va = arg;
1619
1620                if (desc->flags & CHIP_HAS_VOLUME) {
1621                        va->flags  |= VIDEO_AUDIO_VOLUME;
1622                        va->volume  = max(chip->left,chip->right);
1623                        if (va->volume)
1624                                va->balance = (32768*min(chip->left,chip->right))/
1625                                        va->volume;
1626                        else
1627                                va->balance = 32768;
1628                }
1629                if (desc->flags & CHIP_HAS_BASSTREBLE) {
1630                        va->flags |= VIDEO_AUDIO_BASS | VIDEO_AUDIO_TREBLE;
1631                        va->bass   = chip->bass;
1632                        va->treble = chip->treble;
1633                }
1634                if (!chip->radio) {
1635                        if (desc->getmode)
1636                                va->mode = desc->getmode(chip);
1637                        else
1638                                va->mode = VIDEO_SOUND_MONO;
1639                }
1640                break;
1641        }
1642
1643        case VIDIOCSAUDIO:
1644        {
1645                struct video_audio *va = arg;
1646
1647                if (desc->flags & CHIP_HAS_VOLUME) {
1648                        chip->left = (min(65536 - va->balance,32768) *
1649                                va->volume) / 32768;
1650                        chip->right = (min(va->balance,(__u16)32768) *
1651                                va->volume) / 32768;
1652                        chip_write(chip,desc->leftreg,desc->volfunc(chip->left));
1653                        chip_write(chip,desc->rightreg,desc->volfunc(chip->right));
1654                }
1655                if (desc->flags & CHIP_HAS_BASSTREBLE) {
1656                        chip->bass = va->bass;
1657                        chip->treble = va->treble;
1658                        chip_write(chip,desc->bassreg,desc->bassfunc(chip->bass));
1659                        chip_write(chip,desc->treblereg,desc->treblefunc(chip->treble));
1660                }
1661                if (desc->setmode && va->mode) {
1662                        chip->watch_stereo = 0;
1663                        /* del_timer(&chip->wt); */
1664                        chip->mode = va->mode;
1665                        desc->setmode(chip,va->mode);
1666                }
1667                break;
1668        }
1669
1670        case VIDIOC_S_CTRL:
1671                return tvaudio_set_ctrl(chip, arg);
1672
1673        case VIDIOC_INT_G_AUDIO_ROUTING:
1674        {
1675                struct v4l2_routing *rt = arg;
1676
1677                rt->input = chip->input;
1678                rt->output = 0;
1679                break;
1680        }
1681
1682        case VIDIOC_INT_S_AUDIO_ROUTING:
1683        {
1684                struct v4l2_routing *rt = arg;
1685
1686                if (!(desc->flags & CHIP_HAS_INPUTSEL) || rt->input >= 4)
1687                                return -EINVAL;
1688                /* There are four inputs: tuner, radio, extern and intern. */
1689                chip->input = rt->input;
1690                if (chip->muted)
1691                        break;
1692                chip_write_masked(chip, desc->inputreg,
1693                                desc->inputmap[chip->input], desc->inputmask);
1694                break;
1695        }
1696
1697        case VIDIOC_S_TUNER:
1698        {
1699                struct v4l2_tuner *vt = arg;
1700                int mode = 0;
1701
1702                if (chip->radio)
1703                        break;
1704                switch (vt->audmode) {
1705                case V4L2_TUNER_MODE_MONO:
1706                        mode = VIDEO_SOUND_MONO;
1707                        break;
1708                case V4L2_TUNER_MODE_STEREO:
1709                case V4L2_TUNER_MODE_LANG1_LANG2:
1710                        mode = VIDEO_SOUND_STEREO;
1711                        break;
1712                case V4L2_TUNER_MODE_LANG1:
1713                        mode = VIDEO_SOUND_LANG1;
1714                        break;
1715                case V4L2_TUNER_MODE_LANG2:
1716                        mode = VIDEO_SOUND_LANG2;
1717                        break;
1718                default:
1719                        return -EINVAL;
1720                }
1721                chip->audmode = vt->audmode;
1722
1723                if (desc->setmode && mode) {
1724                        chip->watch_stereo = 0;
1725                        /* del_timer(&chip->wt); */
1726                        chip->mode = mode;
1727                        desc->setmode(chip, mode);
1728                }
1729                break;
1730        }
1731
1732        case VIDIOC_G_TUNER:
1733        {
1734                struct v4l2_tuner *vt = arg;
1735                int mode = VIDEO_SOUND_MONO;
1736
1737                if (chip->radio)
1738                        break;
1739                vt->audmode = chip->audmode;
1740                vt->rxsubchans = 0;
1741                vt->capability = V4L2_TUNER_CAP_STEREO |
1742                        V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1743
1744                if (desc->getmode)
1745                        mode = desc->getmode(chip);
1746
1747                if (mode & VIDEO_SOUND_MONO)
1748                        vt->rxsubchans |= V4L2_TUNER_SUB_MONO;
1749                if (mode & VIDEO_SOUND_STEREO)
1750                        vt->rxsubchans |= V4L2_TUNER_SUB_STEREO;
1751                /* Note: for SAP it should be mono/lang2 or stereo/lang2.
1752                   When this module is converted fully to v4l2, then this
1753                   should change for those chips that can detect SAP. */
1754                if (mode & VIDEO_SOUND_LANG1)
1755                        vt->rxsubchans = V4L2_TUNER_SUB_LANG1 |
1756                                         V4L2_TUNER_SUB_LANG2;
1757                break;
1758        }
1759
1760        case VIDIOCSCHAN:
1761        case VIDIOC_S_STD:
1762                chip->radio = 0;
1763                break;
1764
1765        case VIDIOCSFREQ:
1766        case VIDIOC_S_FREQUENCY:
1767                chip->mode = 0; /* automatic */
1768                if (desc->checkmode) {
1769                        desc->setmode(chip,VIDEO_SOUND_MONO);
1770                        if (chip->prevmode != VIDEO_SOUND_MONO)
1771                                chip->prevmode = -1; /* reset previous mode */
1772                        mod_timer(&chip->wt, jiffies+msecs_to_jiffies(2000));
1773                        /* the thread will call checkmode() later */
1774                }
1775                break;
1776
1777        case VIDIOC_G_CHIP_IDENT:
1778                return v4l2_chip_ident_i2c_client(client, arg, V4L2_IDENT_TVAUDIO, 0);
1779        }
1780        return 0;
1781}
1782
1783static struct i2c_driver driver = {
1784        .driver = {
1785                .name    = "tvaudio",
1786        },
1787        .id              = I2C_DRIVERID_TVAUDIO,
1788        .attach_adapter  = chip_probe,
1789        .detach_client   = chip_detach,
1790        .command         = chip_command,
1791};
1792
1793static struct i2c_client client_template =
1794{
1795        .name       = "(unset)",
1796        .driver     = &driver,
1797};
1798
1799static int __init audiochip_init_module(void)
1800{
1801        struct CHIPDESC  *desc;
1802
1803        if (debug) {
1804                printk(KERN_INFO "tvaudio: TV audio decoder + audio/video mux driver\n");
1805                printk(KERN_INFO "tvaudio: known chips: ");
1806                for (desc = chiplist; desc->name != NULL; desc++)
1807                        printk("%s%s", (desc == chiplist) ? "" : ", ", desc->name);
1808                printk("\n");
1809        }
1810
1811        return i2c_add_driver(&driver);
1812}
1813
1814static void __exit audiochip_cleanup_module(void)
1815{
1816        i2c_del_driver(&driver);
1817}
1818
1819module_init(audiochip_init_module);
1820module_exit(audiochip_cleanup_module);
1821
1822/*
1823 * Local variables:
1824 * c-basic-offset: 8
1825 * End:
1826 */
1827