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