drivers/media/video/msp3400.c

   1 /*
   2  * programming the msp34* sound processor family
   3  *
   4  * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
   5  *
   6  * what works and what doesn't:
   7  *
   8  *  AM-Mono
   9  *      Support for Hauppauge cards added (decoding handled by tuner) added by
  10  *      Frederic Crozat <fcrozat@mail.dotcom.fr>
  11  *
  12  *  FM-Mono
  13  *      should work. The stereo modes are backward compatible to FM-mono,
  14  *      therefore FM-Mono should be allways available.
  15  *
  16  *  FM-Stereo (B/G, used in germany)
  17  *      should work, with autodetect
  18  *
  19  *  FM-Stereo (satellite)
  20  *      should work, no autodetect (i.e. default is mono, but you can
  21  *      switch to stereo -- untested)
  22  *
  23  *  NICAM (B/G, L , used in UK, Scandinavia, Spain and France)
  24  *      should work, with autodetect. Support for NICAM was added by
  25  *      Pekka Pietikainen <pp@netppl.fi>
  26  *
  27  *
  28  * TODO:
  29  *   - better SAT support
  30  *
  31  *
  32  * 980623  Thomas Sailer (sailer@ife.ee.ethz.ch)
  33  *         using soundcore instead of OSS
  34  *
  35  */
  36
  37 #include <linux/config.h>
  38 #include <linux/module.h>
  39 #include <linux/kernel.h>
  40 #include <linux/sched.h>
  41 #include <linux/string.h>
  42 #include <linux/timer.h>
  43 #include <linux/delay.h>
  44 #include <linux/errno.h>
  45 #include <linux/slab.h>
  46 #include <linux/i2c.h>
  47 #include <linux/videodev.h>
  48 #include <linux/init.h>
  49 #include <linux/smp_lock.h>
  50 #include <asm/semaphore.h>
  51 #include <asm/pgtable.h>
  52
  53 #include <media/audiochip.h>
  54 #include "msp3400.h"
  55
  56 /* insmod parameters */
  57 static int debug    = 0;    /* debug output */
  58 static int once     = 0;    /* no continous stereo monitoring */
  59 static int amsound  = 0;    /* hard-wire AM sound at 6.5 Hz (france),
  60                               the autoscan seems work well only with FM... */
  61 static int simple   = -1;   /* use short programming (>= msp3410 only) */
  62 static int dolby    = 0;
  63
  64 #define DFP_COUNT 0x41
  65 static const int bl_dfp[] = {
  66         0x00, 0x01, 0x02, 0x03,  0x06, 0x08, 0x09, 0x0a,
  67         0x0b, 0x0d, 0x0e, 0x10
  68 };
  69
  70 struct msp3400c {
  71         int rev1,rev2;
  72
  73         int simple;
  74         int mode;
  75         int norm;
  76         int stereo;
  77         int nicam_on;
  78         int acb;
  79         int main, second;       /* sound carrier */
  80         int input;
  81
  82         int muted;
  83         int left, right;        /* volume */
  84         int bass, treble;
  85
  86         /* shadow register set */
  87         int dfp_regs[DFP_COUNT];
  88
  89         /* thread */
  90         pid_t                tpid;
  91         struct completion    texit;
  92         wait_queue_head_t    wq;
  93
  94         int                  active:1;
  95         int                  restart:1;
  96         int                  rmmod:1;
  97
  98         int                  watch_stereo;
  99         struct timer_list    wake_stereo;
 100 };
 101
 102 #define HAVE_NICAM(msp)   (((msp->rev2>>8) & 0xff) != 00)
 103 #define HAVE_SIMPLE(msp)  ((msp->rev1      & 0xff) >= 'D'-'@')
 104 #define HAVE_RADIO(msp)   ((msp->rev1      & 0xff) >= 'G'-'@')
 105
 106 #define VIDEO_MODE_RADIO 16      /* norm magic for radio mode */
 107
 108 /* ---------------------------------------------------------------------- */
 109
 110 #define dprintk      if (debug >= 1) printk
 111 #define d2printk     if (debug >= 2) printk
 112
 113 MODULE_PARM(once,"i");
 114 MODULE_PARM(debug,"i");
 115 MODULE_PARM(simple,"i");
 116 MODULE_PARM(amsound,"i");
 117 MODULE_PARM(dolby,"i");
 118
 119 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
 120 MODULE_AUTHOR("Gerd Knorr");
 121 MODULE_LICENSE("Dual BSD/GPL"); /* FreeBSD uses this too */
 122
 123 /* ---------------------------------------------------------------------- */
 124
 125 #define I2C_MSP3400C       0x80
 126 #define I2C_MSP3400C_ALT   0x88
 127
 128 #define I2C_MSP3400C_DEM   0x10
 129 #define I2C_MSP3400C_DFP   0x12
 130
 131 /* Addresses to scan */
 132 static unsigned short normal_i2c[] = {
 133         I2C_MSP3400C      >> 1,
 134         I2C_MSP3400C_ALT  >> 1,
 135         I2C_CLIENT_END
 136 };
 137 static unsigned short normal_i2c_range[] = {I2C_CLIENT_END,I2C_CLIENT_END};
 138 I2C_CLIENT_INSMOD;
 139
 140 /* ----------------------------------------------------------------------- */
 141 /* functions for talking to the MSP3400C Sound processor                   */
 142
 143 #ifndef I2C_M_IGNORE_NAK
 144 # define I2C_M_IGNORE_NAK 0x1000
 145 #endif
 146
 147 static int msp3400c_reset(struct i2c_client *client)
 148 {
 149         /* reset and read revision code */
 150         static char reset_off[3] = { 0x00, 0x80, 0x00 };
 151         static char reset_on[3]  = { 0x00, 0x00, 0x00 };
 152         static char write[3]     = { I2C_MSP3400C_DFP + 1, 0x00, 0x1e };
 153         char read[2];
 154         struct i2c_msg reset[2] = {
 155                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
 156                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on  },
 157         };
 158         struct i2c_msg test[2] = {
 159                 { client->addr, 0,        3, write },
 160                 { client->addr, I2C_M_RD, 2, read  },
 161         };
 162
 163         if ( (1 != i2c_transfer(client->adapter,&reset[0],1)) ||
 164              (1 != i2c_transfer(client->adapter,&reset[1],1)) ||
 165              (2 != i2c_transfer(client->adapter,test,2)) ) {
 166                 printk(KERN_ERR "msp3400: chip reset failed\n");
 167                 return -1;
 168         }
 169         return 0;
 170 }
 171
 172 static int
 173 msp3400c_read(struct i2c_client *client, int dev, int addr)
 174 {
 175         int err;
 176
 177         unsigned char write[3];
 178         unsigned char read[2];
 179         struct i2c_msg msgs[2] = {
 180                 { client->addr, 0,        3, write },
 181                 { client->addr, I2C_M_RD, 2, read  }
 182         };
 183         write[0] = dev+1;
 184         write[1] = addr >> 8;
 185         write[2] = addr & 0xff;
 186
 187         for (err = 0; err < 3;) {
 188                 if (2 == i2c_transfer(client->adapter,msgs,2))
 189                         break;
 190                 err++;
 191                 printk(KERN_WARNING "msp34xx: I/O error #%d (read 0x%02x/0x%02x)\n",
 192                        err, dev, addr);
 193                 set_current_state(TASK_INTERRUPTIBLE);
 194                 schedule_timeout(HZ/10);
 195         }
 196         if (3 == err) {
 197                 printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
 198                 msp3400c_reset(client);
 199                 return -1;
 200         }
 201         return read[0] << 8 | read[1];
 202 }
 203
 204 static int
 205 msp3400c_write(struct i2c_client *client, int dev, int addr, int val)
 206 {
 207         int err;
 208         unsigned char buffer[5];
 209
 210         buffer[0] = dev;
 211         buffer[1] = addr >> 8;
 212         buffer[2] = addr &  0xff;
 213         buffer[3] = val  >> 8;
 214         buffer[4] = val  &  0xff;
 215
 216         for (err = 0; err < 3;) {
 217                 if (5 == i2c_master_send(client, buffer, 5))
 218                         break;
 219                 err++;
 220                 printk(KERN_WARNING "msp34xx: I/O error #%d (write 0x%02x/0x%02x)\n",
 221                        err, dev, addr);
 222                 set_current_state(TASK_INTERRUPTIBLE);
 223                 schedule_timeout(HZ/10);
 224         }
 225         if (3 == err) {
 226                 printk(KERN_WARNING "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
 227                 msp3400c_reset(client);
 228                 return -1;
 229         }
 230         return 0;
 231 }
 232
 233 /* ------------------------------------------------------------------------ */
 234
 235 /* This macro is allowed for *constants* only, gcc must calculate it
 236    at compile time.  Remember -- no floats in kernel mode */
 237 #define MSP_CARRIER(freq) ((int)((float)(freq/18.432)*(1<<24)))
 238
 239 #define MSP_MODE_AM_DETECT   0
 240 #define MSP_MODE_FM_RADIO    2
 241 #define MSP_MODE_FM_TERRA    3
 242 #define MSP_MODE_FM_SAT      4
 243 #define MSP_MODE_FM_NICAM1   5
 244 #define MSP_MODE_FM_NICAM2   6
 245 #define MSP_MODE_AM_NICAM    7
 246 #define MSP_MODE_BTSC        8
 247 #define MSP_MODE_EXTERN      9
 248
 249 static struct MSP_INIT_DATA_DEM {
 250         int fir1[6];
 251         int fir2[6];
 252         int cdo1;
 253         int cdo2;
 254         int ad_cv;
 255         int mode_reg;
 256         int dfp_src;
 257         int dfp_matrix;
 258 } msp_init_data[] = {
 259         /* AM (for carrier detect / msp3400) */
 260         { { 75, 19, 36, 35, 39, 40 }, { 75, 19, 36, 35, 39, 40 },
 261           MSP_CARRIER(5.5), MSP_CARRIER(5.5),
 262           0x00d0, 0x0500,   0x0020, 0x3000},
 263
 264         /* AM (for carrier detect / msp3410) */
 265         { { -1, -1, -8, 2, 59, 126 }, { -1, -1, -8, 2, 59, 126 },
 266           MSP_CARRIER(5.5), MSP_CARRIER(5.5),
 267           0x00d0, 0x0100,   0x0020, 0x3000},
 268
 269         /* FM Radio */
 270         { { -8, -8, 4, 6, 78, 107 }, { -8, -8, 4, 6, 78, 107 },
 271           MSP_CARRIER(10.7), MSP_CARRIER(10.7),
 272           0x00d0, 0x0480, 0x0020, 0x3000 },
 273
 274         /* Terrestial FM-mono + FM-stereo */
 275         { {  3, 18, 27, 48, 66, 72 }, {  3, 18, 27, 48, 66, 72 },
 276           MSP_CARRIER(5.5), MSP_CARRIER(5.5),
 277           0x00d0, 0x0480,   0x0030, 0x3000},
 278
 279         /* Sat FM-mono */
 280         { {  1,  9, 14, 24, 33, 37 }, {  3, 18, 27, 48, 66, 72 },
 281           MSP_CARRIER(6.5), MSP_CARRIER(6.5),
 282           0x00c6, 0x0480,   0x0000, 0x3000},
 283
 284         /* NICAM/FM --  B/G (5.5/5.85), D/K (6.5/5.85) */
 285         { { -2, -8, -10, 10, 50, 86 }, {  3, 18, 27, 48, 66, 72 },
 286           MSP_CARRIER(5.5), MSP_CARRIER(5.5),
 287           0x00d0, 0x0040,   0x0120, 0x3000},
 288
 289         /* NICAM/FM -- I (6.0/6.552) */
 290         { {  2, 4, -6, -4, 40, 94 }, {  3, 18, 27, 48, 66, 72 },
 291           MSP_CARRIER(6.0), MSP_CARRIER(6.0),
 292           0x00d0, 0x0040,   0x0120, 0x3000},
 293
 294         /* NICAM/AM -- L (6.5/5.85) */
 295         { {  -2, -8, -10, 10, 50, 86 }, {  -4, -12, -9, 23, 79, 126 },
 296           MSP_CARRIER(6.5), MSP_CARRIER(6.5),
 297           0x00c6, 0x0140,   0x0120, 0x7c03},
 298 };
 299
 300 struct CARRIER_DETECT {
 301         int   cdo;
 302         char *name;
 303 };
 304
 305 static struct CARRIER_DETECT carrier_detect_main[] = {
 306         /* main carrier */
 307         { MSP_CARRIER(4.5),        "4.5   NTSC"                   },
 308         { MSP_CARRIER(5.5),        "5.5   PAL B/G"                },
 309         { MSP_CARRIER(6.0),        "6.0   PAL I"                  },
 310         { MSP_CARRIER(6.5),        "6.5   PAL D/K + SAT + SECAM"  }
 311 };
 312
 313 static struct CARRIER_DETECT carrier_detect_55[] = {
 314         /* PAL B/G */
 315         { MSP_CARRIER(5.7421875),  "5.742 PAL B/G FM-stereo"     },
 316         { MSP_CARRIER(5.85),       "5.85  PAL B/G NICAM"         }
 317 };
 318
 319 static struct CARRIER_DETECT carrier_detect_65[] = {
 320         /* PAL SAT / SECAM */
 321         { MSP_CARRIER(5.85),       "5.85  PAL D/K + SECAM NICAM" },
 322         { MSP_CARRIER(6.2578125),  "6.25  PAL D/K1 FM-stereo" },
 323         { MSP_CARRIER(6.7421875),  "6.74  PAL D/K2 FM-stereo" },
 324         { MSP_CARRIER(7.02),       "7.02  PAL SAT FM-stereo s/b" },
 325         { MSP_CARRIER(7.20),       "7.20  PAL SAT FM-stereo s"   },
 326         { MSP_CARRIER(7.38),       "7.38  PAL SAT FM-stereo b"   },
 327 };
 328
 329 #define CARRIER_COUNT(x) (sizeof(x)/sizeof(struct CARRIER_DETECT))
 330
 331 /* ----------------------------------------------------------------------- */
 332
 333 #define SCART_MASK    0
 334 #define SCART_IN1     1
 335 #define SCART_IN2     2
 336 #define SCART_IN1_DA  3
 337 #define SCART_IN2_DA  4
 338 #define SCART_IN3     5
 339 #define SCART_IN4     6
 340 #define SCART_MONO    7
 341 #define SCART_MUTE    8
 342
 343 static int scarts[3][9] = {
 344   /* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
 345   {  0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
 346   {  0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
 347   {  0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
 348 };
 349
 350 static char *scart_names[] = {
 351   "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
 352 };
 353
 354 static void
 355 msp3400c_set_scart(struct i2c_client *client, int in, int out)
 356 {
 357         struct msp3400c *msp = i2c_get_clientdata(client);
 358
 359         if (-1 == scarts[out][in])
 360                 return;
 361
 362         dprintk(KERN_DEBUG
 363                 "msp34xx: scart switch: %s => %d\n",scart_names[in],out);
 364         msp->acb &= ~scarts[out][SCART_MASK];
 365         msp->acb |=  scarts[out][in];
 366         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0013, msp->acb);
 367 }
 368
 369 /* ------------------------------------------------------------------------ */
 370
 371 static void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2)
 372 {
 373         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0093, cdo1 & 0xfff);
 374         msp3400c_write(client,I2C_MSP3400C_DEM, 0x009b, cdo1 >> 12);
 375         msp3400c_write(client,I2C_MSP3400C_DEM, 0x00a3, cdo2 & 0xfff);
 376         msp3400c_write(client,I2C_MSP3400C_DEM, 0x00ab, cdo2 >> 12);
 377         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
 378 }
 379
 380 static void msp3400c_setvolume(struct i2c_client *client,
 381                                int muted, int left, int right)
 382 {
 383         int vol = 0,val = 0,balance = 0;
 384
 385         if (!muted) {
 386                 vol     = (left > right) ? left : right;
 387                 val     = (vol * 0x73 / 65535) << 8;
 388         }
 389         if (vol > 0) {
 390                 balance = ((right-left) * 127) / vol;
 391         }
 392
 393         dprintk(KERN_DEBUG
 394                 "msp34xx: setvolume: mute=%s %d:%d  v=0x%02x b=0x%02x\n",
 395                 muted ? "on" : "off", left, right, val>>8, balance);
 396         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */
 397         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones  */
 398         /* scart - on/off only */
 399         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007, val ? 0x4000 : 0);
 400         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0001, balance << 8);
 401 }
 402
 403 static void msp3400c_setbass(struct i2c_client *client, int bass)
 404 {
 405         int val = ((bass-32768) * 0x60 / 65535) << 8;
 406
 407         dprintk(KERN_DEBUG "msp34xx: setbass: %d 0x%02x\n",bass, val>>8);
 408         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0002, val); /* loudspeaker */
 409 }
 410
 411 static void msp3400c_settreble(struct i2c_client *client, int treble)
 412 {
 413         int val = ((treble-32768) * 0x60 / 65535) << 8;
 414
 415         dprintk(KERN_DEBUG "msp34xx: settreble: %d 0x%02x\n",treble, val>>8);
 416         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0003, val); /* loudspeaker */
 417 }
 418
 419 static void msp3400c_setmode(struct i2c_client *client, int type)
 420 {
 421         struct msp3400c *msp = i2c_get_clientdata(client);
 422         int i;
 423
 424         dprintk(KERN_DEBUG "msp3400: setmode: %d\n",type);
 425         msp->mode   = type;
 426         msp->stereo = VIDEO_SOUND_MONO;
 427
 428         msp3400c_write(client,I2C_MSP3400C_DEM, 0x00bb,          /* ad_cv */
 429                        msp_init_data[type].ad_cv);
 430
 431         for (i = 5; i >= 0; i--)                                   /* fir 1 */
 432                 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0001,
 433                                msp_init_data[type].fir1[i]);
 434
 435         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0004); /* fir 2 */
 436         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0040);
 437         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0000);
 438         for (i = 5; i >= 0; i--)
 439                 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005,
 440                                msp_init_data[type].fir2[i]);
 441
 442         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0083,     /* MODE_REG */
 443                        msp_init_data[type].mode_reg);
 444
 445         msp3400c_setcarrier(client, msp_init_data[type].cdo1,
 446                             msp_init_data[type].cdo2);
 447
 448         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
 449
 450         if (dolby) {
 451                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
 452                                0x0520); /* I2S1 */
 453                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
 454                                0x0620); /* I2S2 */
 455                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
 456                                msp_init_data[type].dfp_src);
 457         } else {
 458                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
 459                                msp_init_data[type].dfp_src);
 460                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
 461                                msp_init_data[type].dfp_src);
 462                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
 463                                msp_init_data[type].dfp_src);
 464         }
 465         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,
 466                        msp_init_data[type].dfp_src);
 467         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e,
 468                        msp_init_data[type].dfp_matrix);
 469
 470         if (HAVE_NICAM(msp)) {
 471                 /* nicam prescale */
 472                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0010, 0x5a00); /* was: 0x3000 */
 473         }
 474 }
 475
 476 /* turn on/off nicam + stereo */
 477 static void msp3400c_setstereo(struct i2c_client *client, int mode)
 478 {
 479         static char *strmode[16] = {
 480 #if __GNUC__ >= 3
 481                 [ 0 ... 15 ]           = "invalid",
 482 #endif
 483                 [ VIDEO_SOUND_MONO ]   = "mono",
 484                 [ VIDEO_SOUND_STEREO ] = "stereo",
 485                 [ VIDEO_SOUND_LANG1  ] = "lang1",
 486                 [ VIDEO_SOUND_LANG2  ] = "lang2",
 487         };
 488         struct msp3400c *msp = i2c_get_clientdata(client);
 489         int nicam=0; /* channel source: FM/AM or nicam */
 490         int src=0;
 491
 492         /* switch demodulator */
 493         switch (msp->mode) {
 494         case MSP_MODE_FM_TERRA:
 495                 dprintk(KERN_DEBUG "msp3400: FM setstereo: %s\n",strmode[mode]);
 496                 msp3400c_setcarrier(client,msp->second,msp->main);
 497                 switch (mode) {
 498                 case VIDEO_SOUND_STEREO:
 499                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001);
 500                         break;
 501                 case VIDEO_SOUND_MONO:
 502                 case VIDEO_SOUND_LANG1:
 503                 case VIDEO_SOUND_LANG2:
 504                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3000);
 505                         break;
 506                 }
 507                 break;
 508         case MSP_MODE_FM_SAT:
 509                 dprintk(KERN_DEBUG "msp3400: SAT setstereo: %s\n",strmode[mode]);
 510                 switch (mode) {
 511                 case VIDEO_SOUND_MONO:
 512                         msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
 513                         break;
 514                 case VIDEO_SOUND_STEREO:
 515                         msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
 516                         break;
 517                 case VIDEO_SOUND_LANG1:
 518                         msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
 519                         break;
 520                 case VIDEO_SOUND_LANG2:
 521                         msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
 522                         break;
 523                 }
 524                 break;
 525         case MSP_MODE_FM_NICAM1:
 526         case MSP_MODE_FM_NICAM2:
 527         case MSP_MODE_AM_NICAM:
 528                 dprintk(KERN_DEBUG "msp3400: NICAM setstereo: %s\n",strmode[mode]);
 529                 msp3400c_setcarrier(client,msp->second,msp->main);
 530                 if (msp->nicam_on)
 531                         nicam=0x0100;
 532                 break;
 533         case MSP_MODE_BTSC:
 534                 dprintk(KERN_DEBUG "msp3400: BTSC setstereo: %s\n",strmode[mode]);
 535                 nicam=0x0300;
 536                 break;
 537         case MSP_MODE_EXTERN:
 538                 dprintk(KERN_DEBUG "msp3400: extern setstereo: %s\n",strmode[mode]);
 539                 nicam = 0x0200;
 540                 break;
 541         case MSP_MODE_FM_RADIO:
 542                 dprintk(KERN_DEBUG "msp3400: FM-Radio setstereo: %s\n",strmode[mode]);
 543                 break;
 544         default:
 545                 dprintk(KERN_DEBUG "msp3400: mono setstereo\n");
 546                 return;
 547         }
 548
 549         /* switch audio */
 550         switch (mode) {
 551         case VIDEO_SOUND_STEREO:
 552                 src = 0x0020 | nicam;
 553 #if 0
 554                 /* spatial effect */
 555                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0005,0x4000);
 556 #endif
 557                 break;
 558         case VIDEO_SOUND_MONO:
 559                 if (msp->mode == MSP_MODE_AM_NICAM) {
 560                         dprintk("msp3400: switching to AM mono\n");
 561                         /* AM mono decoding is handled by tuner, not MSP chip */
 562                         /* SCART switching control register */
 563                         msp3400c_set_scart(client,SCART_MONO,0);
 564                         src = 0x0200;
 565                         break;
 566                 }
 567         case VIDEO_SOUND_LANG1:
 568                 src = 0x0000 | nicam;
 569                 break;
 570         case VIDEO_SOUND_LANG2:
 571                 src = 0x0010 | nicam;
 572                 break;
 573         }
 574         dprintk(KERN_DEBUG
 575                 "msp3400: setstereo final source/matrix = 0x%x\n", src);
 576
 577         if (dolby) {
 578                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,0x0520);
 579                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,0x0620);
 580                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
 581                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
 582         } else {
 583                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,src);
 584                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,src);
 585                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
 586                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
 587         }
 588 }
 589
 590 static void
 591 msp3400c_print_mode(struct msp3400c *msp)
 592 {
 593         if (msp->main == msp->second) {
 594                 printk(KERN_DEBUG "msp3400: mono sound carrier: %d.%03d MHz\n",
 595                        msp->main/910000,(msp->main/910)%1000);
 596         } else {
 597                 printk(KERN_DEBUG "msp3400: main sound carrier: %d.%03d MHz\n",
 598                        msp->main/910000,(msp->main/910)%1000);
 599         }
 600         if (msp->mode == MSP_MODE_FM_NICAM1 ||
 601             msp->mode == MSP_MODE_FM_NICAM2)
 602                 printk(KERN_DEBUG "msp3400: NICAM/FM carrier   : %d.%03d MHz\n",
 603                        msp->second/910000,(msp->second/910)%1000);
 604         if (msp->mode == MSP_MODE_AM_NICAM)
 605                 printk(KERN_DEBUG "msp3400: NICAM/AM carrier   : %d.%03d MHz\n",
 606                        msp->second/910000,(msp->second/910)%1000);
 607         if (msp->mode == MSP_MODE_FM_TERRA &&
 608             msp->main != msp->second) {
 609                 printk(KERN_DEBUG "msp3400: FM-stereo carrier : %d.%03d MHz\n",
 610                        msp->second/910000,(msp->second/910)%1000);
 611         }
 612 }
 613
 614 static void
 615 msp3400c_restore_dfp(struct i2c_client *client)
 616 {
 617         struct msp3400c *msp = i2c_get_clientdata(client);
 618         int i;
 619
 620         for (i = 0; i < DFP_COUNT; i++) {
 621                 if (-1 == msp->dfp_regs[i])
 622                         continue;
 623                 msp3400c_write(client,I2C_MSP3400C_DFP, i, msp->dfp_regs[i]);
 624         }
 625 }
 626
 627 /* ----------------------------------------------------------------------- */
 628
 629 struct REGISTER_DUMP {
 630         int   addr;
 631         char *name;
 632 };
 633
 634 struct REGISTER_DUMP d1[] = {
 635         { 0x007e, "autodetect" },
 636         { 0x0023, "C_AD_BITS " },
 637         { 0x0038, "ADD_BITS  " },
 638         { 0x003e, "CIB_BITS  " },
 639         { 0x0057, "ERROR_RATE" },
 640 };
 641
 642 static int
 643 autodetect_stereo(struct i2c_client *client)
 644 {
 645         struct msp3400c *msp = i2c_get_clientdata(client);
 646         int val;
 647         int newstereo = msp->stereo;
 648         int newnicam  = msp->nicam_on;
 649         int update = 0;
 650
 651         switch (msp->mode) {
 652         case MSP_MODE_FM_TERRA:
 653                 val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x18);
 654                 if (val > 32767)
 655                         val -= 65536;
 656                 dprintk(KERN_DEBUG
 657                         "msp34xx: stereo detect register: %d\n",val);
 658                 if (val > 4096) {
 659                         newstereo = VIDEO_SOUND_STEREO | VIDEO_SOUND_MONO;
 660                 } else if (val < -4096) {
 661                         newstereo = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
 662                 } else {
 663                         newstereo = VIDEO_SOUND_MONO;
 664                 }
 665                 newnicam = 0;
 666                 break;
 667         case MSP_MODE_FM_NICAM1:
 668         case MSP_MODE_FM_NICAM2:
 669         case MSP_MODE_AM_NICAM:
 670                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x23);
 671                 dprintk(KERN_DEBUG
 672                         "msp34xx: nicam sync=%d, mode=%d\n",
 673                         val & 1, (val & 0x1e) >> 1);
 674
 675                 if (val & 1) {
 676                         /* nicam synced */
 677                         switch ((val & 0x1e) >> 1)  {
 678                         case 0:
 679                         case 8:
 680                                 newstereo = VIDEO_SOUND_STEREO;
 681                                 break;
 682                         case 1:
 683                         case 9:
 684                                 newstereo = VIDEO_SOUND_MONO
 685                                         | VIDEO_SOUND_LANG1;
 686                                 break;
 687                         case 2:
 688                         case 10:
 689                                 newstereo = VIDEO_SOUND_MONO
 690                                         | VIDEO_SOUND_LANG1
 691                                         | VIDEO_SOUND_LANG2;
 692                                 break;
 693                         default:
 694                                 newstereo = VIDEO_SOUND_MONO;
 695                                 break;
 696                         }
 697                         newnicam=1;
 698                 } else {
 699                         newnicam = 0;
 700                         newstereo = VIDEO_SOUND_MONO;
 701                 }
 702                 break;
 703         case MSP_MODE_BTSC:
 704                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x200);
 705                 dprintk(KERN_DEBUG
 706                         "msp3410: status=0x%x (pri=%s, sec=%s, %s%s%s)\n",
 707                         val,
 708                         (val & 0x0002) ? "no"     : "yes",
 709                         (val & 0x0004) ? "no"     : "yes",
 710                         (val & 0x0040) ? "stereo" : "mono",
 711                         (val & 0x0080) ? ", nicam 2nd mono" : "",
 712                         (val & 0x0100) ? ", bilingual/SAP"  : "");
 713                 newstereo = VIDEO_SOUND_MONO;
 714                 if (val & 0x0040) newstereo |= VIDEO_SOUND_STEREO;
 715                 if (val & 0x0100) newstereo |= VIDEO_SOUND_LANG1;
 716                 break;
 717         }
 718         if (newstereo != msp->stereo) {
 719                 update = 1;
 720                 dprintk(KERN_DEBUG "msp34xx: watch: stereo %d => %d\n",
 721                         msp->stereo,newstereo);
 722                 msp->stereo   = newstereo;
 723         }
 724         if (newnicam != msp->nicam_on) {
 725                 update = 1;
 726                 dprintk(KERN_DEBUG "msp34xx: watch: nicam %d => %d\n",
 727                         msp->nicam_on,newnicam);
 728                 msp->nicam_on = newnicam;
 729         }
 730         return update;
 731 }
 732
 733 /*
 734  * A kernel thread for msp3400 control -- we don't want to block the
 735  * in the ioctl while doing the sound carrier & stereo detect
 736  */
 737
 738 static int msp34xx_sleep(struct msp3400c *msp, int timeout)
 739 {
 740         DECLARE_WAITQUEUE(wait, current);
 741
 742         add_wait_queue(&msp->wq, &wait);
 743         if (!msp->rmmod) {
 744                 set_current_state(TASK_INTERRUPTIBLE);
 745                 if (timeout < 0)
 746                         schedule();
 747                 else
 748                         schedule_timeout(timeout);
 749         }
 750         remove_wait_queue(&msp->wq, &wait);
 751         return msp->rmmod || signal_pending(current);
 752 }
 753
 754 static void msp3400c_stereo_wake(unsigned long data)
 755 {
 756         struct msp3400c *msp = (struct msp3400c*)data;   /* XXX alpha ??? */
 757
 758         wake_up_interruptible(&msp->wq);
 759 }
 760
 761 /* stereo/multilang monitoring */
 762 static void watch_stereo(struct i2c_client *client)
 763 {
 764         struct msp3400c *msp = i2c_get_clientdata(client);
 765
 766         if (autodetect_stereo(client)) {
 767                 if (msp->stereo & VIDEO_SOUND_STEREO)
 768                         msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
 769                 else if (msp->stereo & VIDEO_SOUND_LANG1)
 770                         msp3400c_setstereo(client,VIDEO_SOUND_LANG1);
 771                 else if (msp->stereo & VIDEO_SOUND_LANG2)
 772                         msp3400c_setstereo(client,VIDEO_SOUND_LANG2);
 773                 else
 774                         msp3400c_setstereo(client,VIDEO_SOUND_MONO);
 775         }
 776         if (once)
 777                 msp->watch_stereo = 0;
 778         if (msp->watch_stereo)
 779                 mod_timer(&msp->wake_stereo, jiffies+5*HZ);
 780 }
 781
 782 static int msp3400c_thread(void *data)
 783 {
 784         struct i2c_client *client = data;
 785         struct msp3400c *msp = i2c_get_clientdata(client);
 786
 787         struct CARRIER_DETECT *cd;
 788         int count, max1,max2,val1,val2, val,this;
 789
 790         daemonize("msp3400");
 791         allow_signal(SIGTERM);
 792         printk("msp3400: daemon started\n");
 793
 794         for (;;) {
 795                 d2printk("msp3400: thread: sleep\n");
 796                 if (msp34xx_sleep(msp,-1))
 797                         goto done;
 798
 799                 d2printk("msp3400: thread: wakeup\n");
 800                 msp->active = 1;
 801
 802                 if (msp->watch_stereo) {
 803                         watch_stereo(client);
 804                         msp->active = 0;
 805                         continue;
 806                 }
 807
 808                 /* some time for the tuner to sync */
 809                 if (msp34xx_sleep(msp,HZ/5))
 810                         goto done;
 811
 812         restart:
 813                 if (VIDEO_MODE_RADIO == msp->norm ||
 814                     MSP_MODE_EXTERN  == msp->mode) {
 815                         /* no carrier scan, just unmute */
 816                         printk("msp3400: thread: no carrier scan\n");
 817                         msp3400c_setvolume(client, msp->muted,
 818                                            msp->left, msp->right);
 819                         continue;
 820                 }
 821                 msp->restart = 0;
 822                 msp3400c_setvolume(client, msp->muted, 0, 0);
 823                 msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
 824                 val1 = val2 = 0;
 825                 max1 = max2 = -1;
 826                 del_timer(&msp->wake_stereo);
 827                 msp->watch_stereo = 0;
 828
 829                 /* carrier detect pass #1 -- main carrier */
 830                 cd = carrier_detect_main; count = CARRIER_COUNT(carrier_detect_main);
 831
 832                 if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
 833                         /* autodetect doesn't work well with AM ... */
 834                         max1 = 3;
 835                         count = 0;
 836                         dprintk("msp3400: AM sound override\n");
 837                 }
 838
 839                 for (this = 0; this < count; this++) {
 840                         msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
 841
 842                         if (msp34xx_sleep(msp,HZ/10))
 843                                 goto done;
 844                         if (msp->restart)
 845                                 msp->restart = 0;
 846
 847                         val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
 848                         if (val > 32767)
 849                                 val -= 65536;
 850                         if (val1 < val)
 851                                 val1 = val, max1 = this;
 852                         dprintk("msp3400: carrier1 val: %5d / %s\n", val,cd[this].name);
 853                 }
 854
 855                 /* carrier detect pass #2 -- second (stereo) carrier */
 856                 switch (max1) {
 857                 case 1: /* 5.5 */
 858                         cd = carrier_detect_55; count = CARRIER_COUNT(carrier_detect_55);
 859                         break;
 860                 case 3: /* 6.5 */
 861                         cd = carrier_detect_65; count = CARRIER_COUNT(carrier_detect_65);
 862                         break;
 863                 case 0: /* 4.5 */
 864                 case 2: /* 6.0 */
 865                 default:
 866                         cd = NULL; count = 0;
 867                         break;
 868                 }
 869
 870                 if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
 871                         /* autodetect doesn't work well with AM ... */
 872                         cd = NULL; count = 0; max2 = 0;
 873                 }
 874                 for (this = 0; this < count; this++) {
 875                         msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
 876
 877                         if (msp34xx_sleep(msp,HZ/10))
 878                                 goto done;
 879                         if (msp->restart)
 880                                 goto restart;
 881
 882                         val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
 883                         if (val > 32767)
 884                                 val -= 65536;
 885                         if (val2 < val)
 886                                 val2 = val, max2 = this;
 887                         dprintk("msp3400: carrier2 val: %5d / %s\n", val,cd[this].name);
 888                 }
 889
 890                 /* programm the msp3400 according to the results */
 891                 msp->main   = carrier_detect_main[max1].cdo;
 892                 switch (max1) {
 893                 case 1: /* 5.5 */
 894                         if (max2 == 0) {
 895                                 /* B/G FM-stereo */
 896                                 msp->second = carrier_detect_55[max2].cdo;
 897                                 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
 898                                 msp->nicam_on = 0;
 899                                 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
 900                                 msp->watch_stereo = 1;
 901                         } else if (max2 == 1 && HAVE_NICAM(msp)) {
 902                                 /* B/G NICAM */
 903                                 msp->second = carrier_detect_55[max2].cdo;
 904                                 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
 905                                 msp->nicam_on = 1;
 906                                 msp3400c_setcarrier(client, msp->second, msp->main);
 907                                 msp->watch_stereo = 1;
 908                         } else {
 909                                 goto no_second;
 910                         }
 911                         break;
 912                 case 2: /* 6.0 */
 913                         /* PAL I NICAM */
 914                         msp->second = MSP_CARRIER(6.552);
 915                         msp3400c_setmode(client, MSP_MODE_FM_NICAM2);
 916                         msp->nicam_on = 1;
 917                         msp3400c_setcarrier(client, msp->second, msp->main);
 918                         msp->watch_stereo = 1;
 919                         break;
 920                 case 3: /* 6.5 */
 921                         if (max2 == 1 || max2 == 2) {
 922                                 /* D/K FM-stereo */
 923                                 msp->second = carrier_detect_65[max2].cdo;
 924                                 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
 925                                 msp->nicam_on = 0;
 926                                 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
 927                                 msp->watch_stereo = 1;
 928                         } else if (max2 == 0 &&
 929                                    msp->norm == VIDEO_MODE_SECAM) {
 930                                 /* L NICAM or AM-mono */
 931                                 msp->second = carrier_detect_65[max2].cdo;
 932                                 msp3400c_setmode(client, MSP_MODE_AM_NICAM);
 933                                 msp->nicam_on = 0;
 934                                 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
 935                                 msp3400c_setcarrier(client, msp->second, msp->main);
 936                                 /* volume prescale for SCART (AM mono input) */
 937                                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000d, 0x1900);
 938                                 msp->watch_stereo = 1;
 939                         } else if (max2 == 0 && HAVE_NICAM(msp)) {
 940                                 /* D/K NICAM */
 941                                 msp->second = carrier_detect_65[max2].cdo;
 942                                 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
 943                                 msp->nicam_on = 1;
 944                                 msp3400c_setcarrier(client, msp->second, msp->main);
 945                                 msp->watch_stereo = 1;
 946                         } else {
 947                                 goto no_second;
 948                         }
 949                         break;
 950                 case 0: /* 4.5 */
 951                 default:
 952                 no_second:
 953                         msp->second = carrier_detect_main[max1].cdo;
 954                         msp3400c_setmode(client, MSP_MODE_FM_TERRA);
 955                         msp->nicam_on = 0;
 956                         msp3400c_setcarrier(client, msp->second, msp->main);
 957                         msp->stereo = VIDEO_SOUND_MONO;
 958                         msp3400c_setstereo(client, VIDEO_SOUND_MONO);
 959                         break;
 960                 }
 961
 962                 /* unmute + restore dfp registers */
 963                 msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
 964                 msp3400c_restore_dfp(client);
 965
 966                 if (msp->watch_stereo)
 967                         mod_timer(&msp->wake_stereo, jiffies+5*HZ);
 968
 969                 if (debug)
 970                         msp3400c_print_mode(msp);
 971
 972                 msp->active = 0;
 973         }
 974
 975 done:
 976         msp->active = 0;
 977         dprintk(KERN_DEBUG "msp3400: thread: exit\n");
 978         complete_and_exit(&msp->texit, 0);
 979 }
 980
 981 /* ----------------------------------------------------------------------- */
 982 /* this one uses the automatic sound standard detection of newer           */
 983 /* msp34xx chip versions                                                   */
 984
 985 static struct MODES {
 986         int retval;
 987         int main, second;
 988         char *name;
 989 } modelist[] = {
 990         { 0x0000, 0, 0, "ERROR" },
 991         { 0x0001, 0, 0, "autodetect start" },
 992         { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72  M Dual FM-Stereo" },
 993         { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74  B/G Dual FM-Stereo" },
 994         { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25  D/K1 Dual FM-Stereo" },
 995         { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74  D/K2 Dual FM-Stereo" },
 996         { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  D/K FM-Mono (HDEV3)" },
 997         { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85  B/G NICAM FM" },
 998         { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  L NICAM AM" },
 999         { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55  I NICAM FM" },
1000         { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM" },
1001         { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM (HDEV2)" },
1002         { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Stereo" },
1003         { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Mono + SAP" },
1004         { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M EIA-J Japan Stereo" },
1005         { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7  FM-Stereo Radio" },
1006         { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  SAT-Mono" },
1007         { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20  SAT-Stereo" },
1008         { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2  SAT ADR" },
1009         {     -1, 0, 0, NULL }, /* EOF */
1010 };
1011
1012 static int msp3410d_thread(void *data)
1013 {
1014         struct i2c_client *client = data;
1015         struct msp3400c *msp = i2c_get_clientdata(client);
1016         int mode,val,i,std;
1017
1018         daemonize("msp3410 [auto]");
1019         allow_signal(SIGTERM);
1020         printk("msp3410: daemon started\n");
1021
1022         for (;;) {
1023                 d2printk(KERN_DEBUG "msp3410: thread: sleep\n");
1024                 if (msp34xx_sleep(msp,-1))
1025                         goto done;
1026
1027                 d2printk(KERN_DEBUG "msp3410: thread: wakeup\n");
1028                 msp->active = 1;
1029
1030                 if (msp->watch_stereo) {
1031                         watch_stereo(client);
1032                         msp->active = 0;
1033                         continue;
1034                 }
1035
1036                 /* some time for the tuner to sync */
1037                 if (msp34xx_sleep(msp,HZ/5))
1038                         goto done;
1039
1040         restart:
1041                 if (msp->mode == MSP_MODE_EXTERN) {
1042                         /* no carrier scan needed, just unmute */
1043                         dprintk(KERN_DEBUG "msp3410: thread: no carrier scan\n");
1044                         msp3400c_setvolume(client, msp->muted,
1045                                            msp->left, msp->right);
1046                         continue;
1047                 }
1048                 msp->restart = 0;
1049                 del_timer(&msp->wake_stereo);
1050                 msp->watch_stereo = 0;
1051
1052                 /* put into sane state (and mute) */
1053                 msp3400c_reset(client);
1054
1055                 /* start autodetect */
1056                 switch (msp->norm) {
1057                 case VIDEO_MODE_PAL:
1058                         mode = 0x1003;
1059                         std  = 1;
1060                         break;
1061                 case VIDEO_MODE_NTSC:  /* BTSC */
1062                         mode = 0x2003;
1063                         std  = 0x0020;
1064                         break;
1065                 case VIDEO_MODE_SECAM:
1066                         mode = 0x0003;
1067                         std  = 1;
1068                         break;
1069                 case VIDEO_MODE_RADIO:
1070                         mode = 0x0003;
1071                         std  = 0x0040;
1072                         break;
1073                 default:
1074                         mode = 0x0003;
1075                         std  = 1;
1076                         break;
1077                 }
1078                 msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode);
1079                 msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std);
1080
1081                 if (debug) {
1082                         int i;
1083                         for (i = 0; modelist[i].name != NULL; i++)
1084                                 if (modelist[i].retval == std)
1085                                         break;
1086                         printk(KERN_DEBUG "msp3410: setting mode: %s (0x%04x)\n",
1087                                modelist[i].name ? modelist[i].name : "unknown",std);
1088                 }
1089
1090                 if (std != 1) {
1091                         /* programmed some specific mode */
1092                         val = std;
1093                 } else {
1094                         /* triggered autodetect */
1095                         for (;;) {
1096                                 if (msp34xx_sleep(msp,HZ/10))
1097                                         goto done;
1098                                 if (msp->restart)
1099                                         goto restart;
1100
1101                                 /* check results */
1102                                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
1103                                 if (val < 0x07ff)
1104                                         break;
1105                                 dprintk(KERN_DEBUG "msp3410: detection still in progress\n");
1106                         }
1107                 }
1108                 for (i = 0; modelist[i].name != NULL; i++)
1109                         if (modelist[i].retval == val)
1110                                 break;
1111                 dprintk(KERN_DEBUG "msp3410: current mode: %s (0x%04x)\n",
1112                         modelist[i].name ? modelist[i].name : "unknown",
1113                         val);
1114                 msp->main   = modelist[i].main;
1115                 msp->second = modelist[i].second;
1116
1117                 if (amsound && (msp->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) {
1118                         /* autodetection has failed, let backup */
1119                         dprintk(KERN_DEBUG "msp3410: autodetection failed,"
1120                                 " switching to backup mode: %s (0x%04x)\n",
1121                                 modelist[8].name ? modelist[8].name : "unknown",val);
1122                         val = 0x0009;
1123                         msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, val);
1124                 }
1125
1126                 /* set various prescales */
1127                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x0d, 0x1900); /* scart */
1128                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM */
1129                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, 0x5a00); /* nicam */
1130
1131                 /* set stereo */
1132                 switch (val) {
1133                 case 0x0008: /* B/G NICAM */
1134                 case 0x000a: /* I NICAM */
1135                         if (val == 0x0008)
1136                                 msp->mode = MSP_MODE_FM_NICAM1;
1137                         else
1138                                 msp->mode = MSP_MODE_FM_NICAM2;
1139                         /* just turn on stereo */
1140                         msp->stereo = VIDEO_SOUND_STEREO;
1141                         msp->nicam_on = 1;
1142                         msp->watch_stereo = 1;
1143                         msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
1144                         break;
1145                 case 0x0009:
1146                         msp->mode = MSP_MODE_AM_NICAM;
1147                         msp->stereo = VIDEO_SOUND_MONO;
1148                         msp->nicam_on = 1;
1149                         msp3400c_setstereo(client,VIDEO_SOUND_MONO);
1150                         msp->watch_stereo = 1;
1151                         break;
1152                 case 0x0020: /* BTSC */
1153                         /* just turn on stereo */
1154                         msp->mode   = MSP_MODE_BTSC;
1155                         msp->stereo = VIDEO_SOUND_STEREO;
1156                         msp->nicam_on = 0;
1157                         msp->watch_stereo = 1;
1158                         msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
1159                         break;
1160                 case 0x0040: /* FM radio */
1161                         msp->mode   = MSP_MODE_FM_RADIO;
1162                         msp->stereo = VIDEO_SOUND_STEREO;
1163                         msp->nicam_on = 0;
1164                         msp->watch_stereo = 0;
1165                         /* not needed in theory if HAVE_RADIO(), but
1166                            short programming enables carrier mute */
1167                         msp3400c_setmode(client,MSP_MODE_FM_RADIO);
1168                         msp3400c_setcarrier(client, MSP_CARRIER(10.7),
1169                                             MSP_CARRIER(10.7));
1170                         /* scart routing */
1171                         msp3400c_set_scart(client,SCART_IN2,0);
1172 #if 0
1173                         /* radio from SCART_IN2 */
1174                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0220);
1175                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0220);
1176                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0220);
1177 #else
1178                         /* msp34xx does radio decoding */
1179                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0020);
1180                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0020);
1181                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0020);
1182 #endif
1183                         break;
1184                 case 0x0003:
1185                 case 0x0004:
1186                 case 0x0005:
1187                         msp->mode   = MSP_MODE_FM_TERRA;
1188                         msp->stereo = VIDEO_SOUND_MONO;
1189                         msp->nicam_on = 0;
1190                         msp->watch_stereo = 1;
1191                         break;
1192                 }
1193
1194                 /* unmute + restore dfp registers */
1195                 msp3400c_setbass(client, msp->bass);
1196                 msp3400c_settreble(client, msp->treble);
1197                 msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
1198                 msp3400c_restore_dfp(client);
1199
1200                 if (msp->watch_stereo)
1201                         mod_timer(&msp->wake_stereo, jiffies+HZ);
1202
1203                 msp->active = 0;
1204         }
1205
1206 done:
1207         msp->active = 0;
1208         dprintk(KERN_DEBUG "msp3410: thread: exit\n");
1209         complete_and_exit(&msp->texit, 0);
1210         return 0;
1211 }
1212
1213 /* ----------------------------------------------------------------------- */
1214
1215 static int msp_attach(struct i2c_adapter *adap, int addr, int kind);
1216 static int msp_detach(struct i2c_client *client);
1217 static int msp_probe(struct i2c_adapter *adap);
1218 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg);
1219
1220 static struct i2c_driver driver = {
1221         .owner          = THIS_MODULE,
1222         .name           = "i2c msp3400 driver",
1223         .id             = I2C_DRIVERID_MSP3400,
1224         .flags          = I2C_DF_NOTIFY,
1225         .attach_adapter = msp_probe,
1226         .detach_client  = msp_detach,
1227         .command        = msp_command,
1228 };
1229
1230 static struct i2c_client client_template =
1231 {
1232         I2C_DEVNAME("(unset)"),
1233         .flags     = I2C_CLIENT_ALLOW_USE,
1234         .driver    = &driver,
1235 };
1236
1237 static int msp_attach(struct i2c_adapter *adap, int addr, int kind)
1238 {
1239         struct msp3400c *msp;
1240         struct i2c_client *c;
1241         int i;
1242
1243         client_template.adapter = adap;
1244         client_template.addr = addr;
1245
1246         if (-1 == msp3400c_reset(&client_template)) {
1247                 dprintk("msp3400: no chip found\n");
1248                 return -1;
1249         }
1250
1251         if (NULL == (c = kmalloc(sizeof(struct i2c_client),GFP_KERNEL)))
1252                 return -ENOMEM;
1253         memcpy(c,&client_template,sizeof(struct i2c_client));
1254         if (NULL == (msp = kmalloc(sizeof(struct msp3400c),GFP_KERNEL))) {
1255                 kfree(c);
1256                 return -ENOMEM;
1257         }
1258
1259         memset(msp,0,sizeof(struct msp3400c));
1260         msp->left   = 65535;
1261         msp->right  = 65535;
1262         msp->bass   = 32768;
1263         msp->treble = 32768;
1264         msp->input  = -1;
1265         msp->muted  = 1;
1266         for (i = 0; i < DFP_COUNT; i++)
1267                 msp->dfp_regs[i] = -1;
1268
1269         i2c_set_clientdata(c, msp);
1270         init_waitqueue_head(&msp->wq);
1271
1272         if (-1 == msp3400c_reset(c)) {
1273                 kfree(msp);
1274                 kfree(c);
1275                 dprintk("msp3400: no chip found\n");
1276                 return -1;
1277         }
1278
1279         msp->rev1 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1e);
1280         if (-1 != msp->rev1)
1281                 msp->rev2 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1f);
1282         if ((-1 == msp->rev1) || (0 == msp->rev1 && 0 == msp->rev2)) {
1283                 kfree(msp);
1284                 kfree(c);
1285                 printk("msp3400: error while reading chip version\n");
1286                 return -1;
1287         }
1288
1289 #if 0
1290         /* this will turn on a 1kHz beep - might be useful for debugging... */
1291         msp3400c_write(c,I2C_MSP3400C_DFP, 0x0014, 0x1040);
1292 #endif
1293         msp3400c_setvolume(c,msp->muted,msp->left,msp->right);
1294
1295         snprintf(c->name, sizeof(c->name), "MSP34%02d%c-%c%d",
1296                  (msp->rev2>>8)&0xff, (msp->rev1&0xff)+'@',
1297                  ((msp->rev1>>8)&0xff)+'@', msp->rev2&0x1f);
1298
1299         if (simple == -1) {
1300                 /* default mode */
1301                 msp->simple = HAVE_SIMPLE(msp);
1302         } else {
1303                 /* use insmod option */
1304                 msp->simple = simple;
1305         }
1306
1307         /* timer for stereo checking */
1308         init_timer(&msp->wake_stereo);
1309         msp->wake_stereo.function = msp3400c_stereo_wake;
1310         msp->wake_stereo.data     = (unsigned long)msp;
1311
1312         /* hello world :-) */
1313         printk(KERN_INFO "msp34xx: init: chip=%s",i2c_clientname(c));
1314         if (HAVE_NICAM(msp))
1315                 printk(" +nicam");
1316         if (HAVE_SIMPLE(msp))
1317                 printk(" +simple");
1318         if (HAVE_RADIO(msp))
1319                 printk(" +radio");
1320         printk("\n");
1321
1322         /* startup control thread */
1323         init_completion(&msp->texit);
1324         msp->tpid = kernel_thread(msp->simple ? msp3410d_thread : msp3400c_thread,
1325                                   (void *)c, 0);
1326         if (msp->tpid < 0)
1327                 printk(KERN_WARNING "msp34xx: kernel_thread() failed\n");
1328         wake_up_interruptible(&msp->wq);
1329
1330         /* done */
1331         i2c_attach_client(c);
1332         return 0;
1333 }
1334
1335 static int msp_detach(struct i2c_client *client)
1336 {
1337         struct msp3400c *msp  = i2c_get_clientdata(client);
1338
1339         /* shutdown control thread */
1340         del_timer_sync(&msp->wake_stereo);
1341         if (msp->tpid >= 0) {
1342                 msp->rmmod = 1;
1343                 wake_up_interruptible(&msp->wq);
1344                 wait_for_completion(&msp->texit);
1345         }
1346         msp3400c_reset(client);
1347
1348         i2c_detach_client(client);
1349         kfree(msp);
1350         kfree(client);
1351         return 0;
1352 }
1353
1354 static int msp_probe(struct i2c_adapter *adap)
1355 {
1356 #ifdef I2C_CLASS_TV_ANALOG
1357         if (adap->class & I2C_CLASS_TV_ANALOG)
1358                 return i2c_probe(adap, &addr_data, msp_attach);
1359 #else
1360         switch (adap->id) {
1361         case I2C_ALGO_BIT | I2C_HW_SMBUS_VOODOO3:
1362         case I2C_ALGO_BIT | I2C_HW_B_BT848:
1363         //case I2C_ALGO_SAA7134:
1364                 return i2c_probe(adap, &addr_data, msp_attach);
1365                 break;
1366         }
1367 #endif
1368         return 0;
1369 }
1370
1371 static void msp_wake_thread(struct i2c_client *client)
1372 {
1373         struct msp3400c *msp  = i2c_get_clientdata(client);
1374
1375         msp3400c_setvolume(client,msp->muted,0,0);
1376         msp->watch_stereo=0;
1377         del_timer(&msp->wake_stereo);
1378         if (msp->active)
1379                 msp->restart = 1;
1380         wake_up_interruptible(&msp->wq);
1381 }
1382
1383 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
1384 {
1385         struct msp3400c *msp  = i2c_get_clientdata(client);
1386         __u16           *sarg = arg;
1387         int scart = 0;
1388
1389         switch (cmd) {
1390
1391         case AUDC_SET_INPUT:
1392                 dprintk(KERN_DEBUG "msp34xx: AUDC_SET_INPUT(%d)\n",*sarg);
1393                 if (*sarg == msp->input)
1394                         break;
1395                 msp->input = *sarg;
1396                 switch (*sarg) {
1397                 case AUDIO_RADIO:
1398                         /* Hauppauge uses IN2 for the radio */
1399                         msp->mode   = MSP_MODE_FM_RADIO;
1400                         scart       = SCART_IN2;
1401                         break;
1402                 case AUDIO_EXTERN_1:
1403                         /* IN1 is often used for external input ... */
1404                         msp->mode   = MSP_MODE_EXTERN;
1405                         scart       = SCART_IN1;
1406                         break;
1407                 case AUDIO_EXTERN_2:
1408                         /* ... sometimes it is IN2 through ;) */
1409                         msp->mode   = MSP_MODE_EXTERN;
1410                         scart       = SCART_IN2;
1411                         break;
1412                 case AUDIO_TUNER:
1413                         msp->mode   = -1;
1414                         msp_wake_thread(client);
1415                         break;
1416                 default:
1417                         if (*sarg & AUDIO_MUTE)
1418                                 msp3400c_set_scart(client,SCART_MUTE,0);
1419                         break;
1420                 }
1421                 if (scart) {
1422                         msp->stereo = VIDEO_SOUND_STEREO;
1423                         msp3400c_set_scart(client,scart,0);
1424                         msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900);
1425                         msp3400c_setstereo(client,msp->stereo);
1426                 }
1427                 if (msp->active)
1428                         msp->restart = 1;
1429                 break;
1430
1431         case AUDC_SET_RADIO:
1432                 dprintk(KERN_DEBUG "msp34xx: AUDC_SET_RADIO\n");
1433                 msp->norm = VIDEO_MODE_RADIO;
1434                 msp->watch_stereo=0;
1435                 del_timer(&msp->wake_stereo);
1436                 dprintk(KERN_DEBUG "msp34xx: switching to radio mode\n");
1437                 if (msp->simple) {
1438                         /* the thread will do for us */
1439                         msp_wake_thread(client);
1440                 } else {
1441                         /* set msp3400 to FM radio mode */
1442                         msp3400c_setmode(client,MSP_MODE_FM_RADIO);
1443                         msp3400c_setcarrier(client, MSP_CARRIER(10.7),MSP_CARRIER(10.7));
1444                         msp3400c_setvolume(client,msp->muted,msp->left,msp->right);
1445                 }
1446                 if (msp->active)
1447                         msp->restart = 1;
1448                 break;
1449
1450 #if 1
1451         /* work-in-progress:  hook to control the DFP registers */
1452         case MSP_SET_DFPREG:
1453         {
1454                 struct msp_dfpreg *r = arg;
1455                 unsigned int i;
1456
1457                 if (r->reg < 0 || r->reg >= DFP_COUNT)
1458                         return -EINVAL;
1459                 for (i = 0; i < ARRAY_SIZE(bl_dfp); i++)
1460                         if (r->reg == bl_dfp[i])
1461                                 return -EINVAL;
1462                 msp->dfp_regs[r->reg] = r->value;
1463                 msp3400c_write(client,I2C_MSP3400C_DFP,r->reg,r->value);
1464                 return 0;
1465         }
1466         case MSP_GET_DFPREG:
1467         {
1468                 struct msp_dfpreg *r = arg;
1469
1470                 if (r->reg < 0 || r->reg >= DFP_COUNT)
1471                         return -EINVAL;
1472                 r->value = msp3400c_read(client,I2C_MSP3400C_DFP,r->reg);
1473                 return 0;
1474         }
1475 #endif
1476
1477         /* --- v4l ioctls --- */
1478         /* take care: bttv does userspace copying, we'll get a
1479            kernel pointer here... */
1480         case VIDIOCGAUDIO:
1481         {
1482                 struct video_audio *va = arg;
1483
1484                 dprintk(KERN_DEBUG "msp34xx: VIDIOCGAUDIO\n");
1485                 va->flags |= VIDEO_AUDIO_VOLUME |
1486                         VIDEO_AUDIO_BASS |
1487                         VIDEO_AUDIO_TREBLE |
1488                         VIDEO_AUDIO_MUTABLE;
1489                 if (msp->muted)
1490                         va->flags |= VIDEO_AUDIO_MUTE;
1491                 va->volume=max(msp->left,msp->right);
1492
1493                 if (0 == va->volume) {
1494                         va->balance = 32768;
1495                 } else {
1496                         va->balance = (32768 * min(msp->left,msp->right))
1497                                 / va->volume;
1498                         va->balance = (msp->left<msp->right) ?
1499                                 (65535 - va->balance) : va->balance;
1500                 }
1501                 va->bass = msp->bass;
1502                 va->treble = msp->treble;
1503
1504                 if (msp->norm != VIDEO_MODE_RADIO) {
1505                         autodetect_stereo(client);
1506                         va->mode = msp->stereo;
1507                 }
1508                 break;
1509         }
1510         case VIDIOCSAUDIO:
1511         {
1512                 struct video_audio *va = arg;
1513
1514                 dprintk(KERN_DEBUG "msp34xx: VIDIOCSAUDIO\n");
1515                 msp->muted = (va->flags & VIDEO_AUDIO_MUTE);
1516                 msp->left = (min(65536 - va->balance,32768) *
1517                              va->volume) / 32768;
1518                 msp->right = (min(va->balance,(__u16)32768) *
1519                               va->volume) / 32768;
1520                 msp->bass = va->bass;
1521                 msp->treble = va->treble;
1522                 msp3400c_setvolume(client,msp->muted,msp->left,msp->right);
1523                 msp3400c_setbass(client,msp->bass);
1524                 msp3400c_settreble(client,msp->treble);
1525
1526                 if (va->mode != 0 && msp->norm != VIDEO_MODE_RADIO) {
1527                         msp->watch_stereo=0;
1528                         del_timer(&msp->wake_stereo);
1529                         msp->stereo = va->mode & 0x0f;
1530                         msp3400c_setstereo(client,va->mode & 0x0f);
1531                 }
1532                 break;
1533         }
1534         case VIDIOCSCHAN:
1535         {
1536                 struct video_channel *vc = arg;
1537
1538                 dprintk(KERN_DEBUG "msp34xx: VIDIOCSCHAN (norm=%d)\n",vc->norm);
1539                 msp->norm = vc->norm;
1540                 break;
1541         }
1542         case VIDIOCSFREQ:
1543         {
1544                 /* new channel -- kick audio carrier scan */
1545                 dprintk(KERN_DEBUG "msp34xx: VIDIOCSFREQ\n");
1546                 msp_wake_thread(client);
1547                 break;
1548         }
1549
1550         default:
1551                 /* nothing */
1552                 break;
1553         }
1554         return 0;
1555 }
1556
1557 /* ----------------------------------------------------------------------- */
1558
1559 static int msp3400_init_module(void)
1560 {
1561         i2c_add_driver(&driver);
1562         return 0;
1563 }
1564
1565 static void msp3400_cleanup_module(void)
1566 {
1567         i2c_del_driver(&driver);
1568 }
1569
1570 module_init(msp3400_init_module);
1571 module_exit(msp3400_cleanup_module);
1572
1573 /*
1574  * Overrides for Emacs so that we follow Linus's tabbing style.
1575  * ---------------------------------------------------------------------------
1576  * Local variables:
1577  * c-basic-offset: 8
1578  * End:
1579  */