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 "audiochip.h"
  54 #include "i2c-compat.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 left, right;        /* volume */
  85         int bass, treble;
  86
  87         /* shadow register set */
  88         int dfp_regs[DFP_COUNT];
  89
  90         /* thread */
  91         struct task_struct  *thread;
  92         wait_queue_head_t    wq;
  93
  94         struct semaphore    *notify;
  95         int                  active,restart,rmmod;
  96
  97         int                  watch_stereo;
  98         struct timer_list    wake_stereo;
  99 };
 100
 101 #define HAVE_NICAM(msp)   (((msp->rev2>>8) & 0xff) != 00)
 102 #define HAVE_SIMPLE(msp)  ((msp->rev1      & 0xff) >= 'D'-'@')
 103 #define HAVE_RADIO(msp)   ((msp->rev1      & 0xff) >= 'G'-'@')
 104
 105 #define MSP3400_MAX 4
 106 static struct i2c_client *msps[MSP3400_MAX];
 107
 108 #define VIDEO_MODE_RADIO 16      /* norm magic for radio mode */
 109
 110 /* ---------------------------------------------------------------------- */
 111
 112 #define dprintk     if (debug) 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                 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                 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 left, int right)
 383 {
 384         int vol = 0,val = 0,balance = 0;
 385
 386         if (!muted) {
 387                 vol     = (left > right) ? left : right;
 388                 val     = (vol * 0x73 / 65535) << 8;
 389         }
 390         if (vol > 0) {
 391                 balance = ((right-left) * 127) / vol;
 392         }
 393
 394         dprintk(KERN_DEBUG
 395                 "msp34xx: setvolume: mute=%s %d:%d  v=0x%02x b=0x%02x\n",
 396                 muted ? "on" : "off", left, right, val>>8, balance);
 397         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */
 398         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones  */
 399         /* scart - on/off only */
 400         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007, val ? 0x4000 : 0);
 401         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0001, balance << 8);
 402 }
 403
 404 static void msp3400c_setbass(struct i2c_client *client, int bass)
 405 {
 406         int val = ((bass-32768) * 0x60 / 65535) << 8;
 407
 408         dprintk(KERN_DEBUG "msp34xx: setbass: %d 0x%02x\n",bass, val>>8);
 409         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0002, val); /* loudspeaker */
 410 }
 411
 412 static void msp3400c_settreble(struct i2c_client *client, int treble)
 413 {
 414         int val = ((treble-32768) * 0x60 / 65535) << 8;
 415
 416         dprintk(KERN_DEBUG "msp34xx: settreble: %d 0x%02x\n",treble, val>>8);
 417         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0003, val); /* loudspeaker */
 418 }
 419
 420 static void msp3400c_setmode(struct i2c_client *client, int type)
 421 {
 422         struct msp3400c *msp = i2c_get_clientdata(client);
 423         int i;
 424
 425         dprintk(KERN_DEBUG "msp3400: setmode: %d\n",type);
 426         msp->mode   = type;
 427         msp->stereo = VIDEO_SOUND_MONO;
 428
 429         msp3400c_write(client,I2C_MSP3400C_DEM, 0x00bb,          /* ad_cv */
 430                        msp_init_data[type].ad_cv);
 431
 432         for (i = 5; i >= 0; i--)                                   /* fir 1 */
 433                 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0001,
 434                                msp_init_data[type].fir1[i]);
 435
 436         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0004); /* fir 2 */
 437         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0040);
 438         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0000);
 439         for (i = 5; i >= 0; i--)
 440                 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005,
 441                                msp_init_data[type].fir2[i]);
 442
 443         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0083,     /* MODE_REG */
 444                        msp_init_data[type].mode_reg);
 445
 446         msp3400c_setcarrier(client, msp_init_data[type].cdo1,
 447                             msp_init_data[type].cdo2);
 448
 449         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
 450
 451         if (dolby) {
 452                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
 453                                0x0520); /* I2S1 */
 454                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
 455                                0x0620); /* I2S2 */
 456                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
 457                                msp_init_data[type].dfp_src);
 458         } else {
 459                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
 460                                msp_init_data[type].dfp_src);
 461                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
 462                                msp_init_data[type].dfp_src);
 463                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
 464                                msp_init_data[type].dfp_src);
 465         }
 466         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,
 467                        msp_init_data[type].dfp_src);
 468         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e,
 469                        msp_init_data[type].dfp_matrix);
 470
 471         if (HAVE_NICAM(msp)) {
 472                 /* nicam prescale */
 473                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0010, 0x5a00); /* was: 0x3000 */
 474         }
 475 }
 476
 477 /* turn on/off nicam + stereo */
 478 static void msp3400c_setstereo(struct i2c_client *client, int mode)
 479 {
 480         static char *strmode[16] = {
 481 #if __GNUC__ >= 3
 482                 [ 0 ... 15 ]           = "invalid",
 483 #endif
 484                 [ VIDEO_SOUND_MONO ]   = "mono",
 485                 [ VIDEO_SOUND_STEREO ] = "stereo",
 486                 [ VIDEO_SOUND_LANG1  ] = "lang1",
 487                 [ VIDEO_SOUND_LANG2  ] = "lang2",
 488         };
 489         struct msp3400c *msp = i2c_get_clientdata(client);
 490         int nicam=0; /* channel source: FM/AM or nicam */
 491         int src=0;
 492
 493         /* switch demodulator */
 494         switch (msp->mode) {
 495         case MSP_MODE_FM_TERRA:
 496                 dprintk(KERN_DEBUG "msp3400: FM setstereo: %s\n",strmode[mode]);
 497                 msp3400c_setcarrier(client,msp->second,msp->main);
 498                 switch (mode) {
 499                 case VIDEO_SOUND_STEREO:
 500                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001);
 501                         break;
 502                 case VIDEO_SOUND_MONO:
 503                 case VIDEO_SOUND_LANG1:
 504                 case VIDEO_SOUND_LANG2:
 505                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3000);
 506                         break;
 507                 }
 508                 break;
 509         case MSP_MODE_FM_SAT:
 510                 dprintk(KERN_DEBUG "msp3400: SAT setstereo: %s\n",strmode[mode]);
 511                 switch (mode) {
 512                 case VIDEO_SOUND_MONO:
 513                         msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
 514                         break;
 515                 case VIDEO_SOUND_STEREO:
 516                         msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
 517                         break;
 518                 case VIDEO_SOUND_LANG1:
 519                         msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
 520                         break;
 521                 case VIDEO_SOUND_LANG2:
 522                         msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
 523                         break;
 524                 }
 525                 break;
 526         case MSP_MODE_FM_NICAM1:
 527         case MSP_MODE_FM_NICAM2:
 528         case MSP_MODE_AM_NICAM:
 529                 dprintk(KERN_DEBUG "msp3400: NICAM setstereo: %s\n",strmode[mode]);
 530                 msp3400c_setcarrier(client,msp->second,msp->main);
 531                 if (msp->nicam_on)
 532                         nicam=0x0100;
 533                 break;
 534         case MSP_MODE_BTSC:
 535                 dprintk(KERN_DEBUG "msp3400: BTSC setstereo: %s\n",strmode[mode]);
 536                 nicam=0x0300;
 537                 break;
 538         case MSP_MODE_EXTERN:
 539                 dprintk(KERN_DEBUG "msp3400: extern setstereo: %s\n",strmode[mode]);
 540                 nicam = 0x0200;
 541                 break;
 542         case MSP_MODE_FM_RADIO:
 543                 dprintk(KERN_DEBUG "msp3400: FM-Radio setstereo: %s\n",strmode[mode]);
 544                 break;
 545         default:
 546                 dprintk(KERN_DEBUG "msp3400: mono setstereo\n");
 547                 return;
 548         }
 549
 550         /* switch audio */
 551         switch (mode) {
 552         case VIDEO_SOUND_STEREO:
 553                 src = 0x0020 | nicam;
 554 #if 0
 555                 /* spatial effect */
 556                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0005,0x4000);
 557 #endif
 558                 break;
 559         case VIDEO_SOUND_MONO:
 560                 if (msp->mode == MSP_MODE_AM_NICAM) {
 561                         dprintk("msp3400: switching to AM mono\n");
 562                         /* AM mono decoding is handled by tuner, not MSP chip */
 563                         /* SCART switching control register */
 564                         msp3400c_set_scart(client,SCART_MONO,0);
 565                         src = 0x0200;
 566                         break;
 567                 }
 568         case VIDEO_SOUND_LANG1:
 569                 src = 0x0000 | nicam;
 570                 break;
 571         case VIDEO_SOUND_LANG2:
 572                 src = 0x0010 | nicam;
 573                 break;
 574         }
 575         dprintk(KERN_DEBUG
 576                 "msp3400: setstereo final source/matrix = 0x%x\n", src);
 577
 578         if (dolby) {
 579                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,0x0520);
 580                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,0x0620);
 581                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
 582                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
 583         } else {
 584                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,src);
 585                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,src);
 586                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
 587                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
 588         }
 589 }
 590
 591 static void
 592 msp3400c_print_mode(struct msp3400c *msp)
 593 {
 594         if (msp->main == msp->second) {
 595                 printk(KERN_DEBUG "msp3400: mono sound carrier: %d.%03d MHz\n",
 596                        msp->main/910000,(msp->main/910)%1000);
 597         } else {
 598                 printk(KERN_DEBUG "msp3400: main sound carrier: %d.%03d MHz\n",
 599                        msp->main/910000,(msp->main/910)%1000);
 600         }
 601         if (msp->mode == MSP_MODE_FM_NICAM1 ||
 602             msp->mode == MSP_MODE_FM_NICAM2)
 603                 printk(KERN_DEBUG "msp3400: NICAM/FM carrier   : %d.%03d MHz\n",
 604                        msp->second/910000,(msp->second/910)%1000);
 605         if (msp->mode == MSP_MODE_AM_NICAM)
 606                 printk(KERN_DEBUG "msp3400: NICAM/AM carrier   : %d.%03d MHz\n",
 607                        msp->second/910000,(msp->second/910)%1000);
 608         if (msp->mode == MSP_MODE_FM_TERRA &&
 609             msp->main != msp->second) {
 610                 printk(KERN_DEBUG "msp3400: FM-stereo carrier : %d.%03d MHz\n",
 611                        msp->second/910000,(msp->second/910)%1000);
 612         }
 613 }
 614
 615 static void
 616 msp3400c_restore_dfp(struct i2c_client *client)
 617 {
 618         struct msp3400c *msp = i2c_get_clientdata(client);
 619         int i;
 620
 621         for (i = 0; i < DFP_COUNT; i++) {
 622                 if (-1 == msp->dfp_regs[i])
 623                         continue;
 624                 msp3400c_write(client,I2C_MSP3400C_DFP, i, msp->dfp_regs[i]);
 625         }
 626 }
 627
 628 /* ----------------------------------------------------------------------- */
 629
 630 struct REGISTER_DUMP {
 631         int   addr;
 632         char *name;
 633 };
 634
 635 struct REGISTER_DUMP d1[] = {
 636         { 0x007e, "autodetect" },
 637         { 0x0023, "C_AD_BITS " },
 638         { 0x0038, "ADD_BITS  " },
 639         { 0x003e, "CIB_BITS  " },
 640         { 0x0057, "ERROR_RATE" },
 641 };
 642
 643 static int
 644 autodetect_stereo(struct i2c_client *client)
 645 {
 646         struct msp3400c *msp = i2c_get_clientdata(client);
 647         int val;
 648         int newstereo = msp->stereo;
 649         int newnicam  = msp->nicam_on;
 650         int update = 0;
 651
 652         switch (msp->mode) {
 653         case MSP_MODE_FM_TERRA:
 654                 val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x18);
 655                 if (val > 32767)
 656                         val -= 65536;
 657                 dprintk(KERN_DEBUG
 658                         "msp34xx: stereo detect register: %d\n",val);
 659                 if (val > 4096) {
 660                         newstereo = VIDEO_SOUND_STEREO | VIDEO_SOUND_MONO;
 661                 } else if (val < -4096) {
 662                         newstereo = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
 663                 } else {
 664                         newstereo = VIDEO_SOUND_MONO;
 665                 }
 666                 newnicam = 0;
 667                 break;
 668         case MSP_MODE_FM_NICAM1:
 669         case MSP_MODE_FM_NICAM2:
 670         case MSP_MODE_AM_NICAM:
 671                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x23);
 672                 dprintk(KERN_DEBUG
 673                         "msp34xx: nicam sync=%d, mode=%d\n",
 674                         val & 1, (val & 0x1e) >> 1);
 675
 676                 if (val & 1) {
 677                         /* nicam synced */
 678                         switch ((val & 0x1e) >> 1)  {
 679                         case 0:
 680                         case 8:
 681                                 newstereo = VIDEO_SOUND_STEREO;
 682                                 break;
 683                         case 1:
 684                         case 9:
 685                                 newstereo = VIDEO_SOUND_MONO
 686                                         | VIDEO_SOUND_LANG1;
 687                                 break;
 688                         case 2:
 689                         case 10:
 690                                 newstereo = VIDEO_SOUND_MONO
 691                                         | VIDEO_SOUND_LANG1
 692                                         | VIDEO_SOUND_LANG2;
 693                                 break;
 694                         default:
 695                                 newstereo = VIDEO_SOUND_MONO;
 696                                 break;
 697                         }
 698                         newnicam=1;
 699                 } else {
 700                         newnicam = 0;
 701                         newstereo = VIDEO_SOUND_MONO;
 702                 }
 703                 break;
 704         case MSP_MODE_BTSC:
 705                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x200);
 706                 dprintk(KERN_DEBUG
 707                         "msp3410: status=0x%x (pri=%s, sec=%s, %s%s%s)\n",
 708                         val,
 709                         (val & 0x0002) ? "no"     : "yes",
 710                         (val & 0x0004) ? "no"     : "yes",
 711                         (val & 0x0040) ? "stereo" : "mono",
 712                         (val & 0x0080) ? ", nicam 2nd mono" : "",
 713                         (val & 0x0100) ? ", bilingual/SAP"  : "");
 714                 newstereo = VIDEO_SOUND_MONO;
 715                 if (val & 0x0040) newstereo |= VIDEO_SOUND_STEREO;
 716                 if (val & 0x0100) newstereo |= VIDEO_SOUND_LANG1;
 717                 break;
 718         }
 719         if (newstereo != msp->stereo) {
 720                 update = 1;
 721                 dprintk(KERN_DEBUG "msp34xx: watch: stereo %d => %d\n",
 722                         msp->stereo,newstereo);
 723                 msp->stereo   = newstereo;
 724         }
 725         if (newnicam != msp->nicam_on) {
 726                 update = 1;
 727                 dprintk(KERN_DEBUG "msp34xx: watch: nicam %d => %d\n",
 728                         msp->nicam_on,newnicam);
 729                 msp->nicam_on = newnicam;
 730         }
 731         return update;
 732 }
 733
 734 /*
 735  * A kernel thread for msp3400 control -- we don't want to block the
 736  * in the ioctl while doing the sound carrier & stereo detect
 737  */
 738
 739 static void msp3400c_stereo_wake(unsigned long data)
 740 {
 741         struct msp3400c *msp = (struct msp3400c*)data;   /* XXX alpha ??? */
 742
 743         wake_up_interruptible(&msp->wq);
 744 }
 745
 746 /* stereo/multilang monitoring */
 747 static void watch_stereo(struct i2c_client *client)
 748 {
 749         struct msp3400c *msp = i2c_get_clientdata(client);
 750
 751         if (autodetect_stereo(client)) {
 752                 if (msp->stereo & VIDEO_SOUND_STEREO)
 753                         msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
 754                 else if (msp->stereo & VIDEO_SOUND_LANG1)
 755                         msp3400c_setstereo(client,VIDEO_SOUND_LANG1);
 756                 else if (msp->stereo & VIDEO_SOUND_LANG2)
 757                         msp3400c_setstereo(client,VIDEO_SOUND_LANG2);
 758                 else
 759                         msp3400c_setstereo(client,VIDEO_SOUND_MONO);
 760         }
 761         if (once)
 762                 msp->watch_stereo = 0;
 763         if (msp->watch_stereo)
 764                 mod_timer(&msp->wake_stereo, jiffies+5*HZ);
 765 }
 766
 767 static int msp3400c_thread(void *data)
 768 {
 769         struct i2c_client *client = data;
 770         struct msp3400c *msp = i2c_get_clientdata(client);
 771
 772         struct CARRIER_DETECT *cd;
 773         int count, max1,max2,val1,val2, val,this;
 774
 775         lock_kernel();
 776         daemonize();
 777         sigfillset(&current->blocked);
 778         strcpy(current->comm,"msp3400");
 779         msp->thread = current;
 780         unlock_kernel();
 781
 782         printk("msp3400: daemon started\n");
 783         if(msp->notify != NULL)
 784                 up(msp->notify);
 785
 786         for (;;) {
 787                 if (msp->rmmod)
 788                         goto done;
 789                 if (debug > 1)
 790                         printk("msp3400: thread: sleep\n");
 791                 interruptible_sleep_on(&msp->wq);
 792                 if (debug > 1)
 793                         printk("msp3400: thread: wakeup\n");
 794                 if (msp->rmmod || signal_pending(current))
 795                         goto done;
 796
 797                 msp->active = 1;
 798
 799                 if (msp->watch_stereo) {
 800                         watch_stereo(client);
 801                         msp->active = 0;
 802                         continue;
 803                 }
 804
 805                 /* some time for the tuner to sync */
 806                 current->state   = TASK_INTERRUPTIBLE;
 807                 schedule_timeout(HZ/5);
 808                 if (signal_pending(current))
 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->left, msp->right);
 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                         current->state   = TASK_INTERRUPTIBLE;
 842                         schedule_timeout(HZ/10);
 843                         if (signal_pending(current))
 844                                 goto done;
 845                         if (msp->restart)
 846                                 msp->restart = 0;
 847
 848                         val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
 849                         if (val > 32767)
 850                                 val -= 65536;
 851                         if (val1 < val)
 852                                 val1 = val, max1 = this;
 853                         dprintk("msp3400: carrier1 val: %5d / %s\n", val,cd[this].name);
 854                 }
 855
 856                 /* carrier detect pass #2 -- second (stereo) carrier */
 857                 switch (max1) {
 858                 case 1: /* 5.5 */
 859                         cd = carrier_detect_55; count = CARRIER_COUNT(carrier_detect_55);
 860                         break;
 861                 case 3: /* 6.5 */
 862                         cd = carrier_detect_65; count = CARRIER_COUNT(carrier_detect_65);
 863                         break;
 864                 case 0: /* 4.5 */
 865                 case 2: /* 6.0 */
 866                 default:
 867                         cd = NULL; count = 0;
 868                         break;
 869                 }
 870
 871                 if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
 872                         /* autodetect doesn't work well with AM ... */
 873                         cd = NULL; count = 0; max2 = 0;
 874                 }
 875                 for (this = 0; this < count; this++) {
 876                         msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
 877
 878                         current->state   = TASK_INTERRUPTIBLE;
 879                         schedule_timeout(HZ/10);
 880                         if (signal_pending(current))
 881                                 goto done;
 882                         if (msp->restart)
 883                                 goto restart;
 884
 885                         val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
 886                         if (val > 32767)
 887                                 val -= 65536;
 888                         if (val2 < val)
 889                                 val2 = val, max2 = this;
 890                         dprintk("msp3400: carrier2 val: %5d / %s\n", val,cd[this].name);
 891                 }
 892
 893                 /* programm the msp3400 according to the results */
 894                 msp->main   = carrier_detect_main[max1].cdo;
 895                 switch (max1) {
 896                 case 1: /* 5.5 */
 897                         if (max2 == 0) {
 898                                 /* B/G FM-stereo */
 899                                 msp->second = carrier_detect_55[max2].cdo;
 900                                 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
 901                                 msp->nicam_on = 0;
 902                                 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
 903                                 msp->watch_stereo = 1;
 904                         } else if (max2 == 1 && HAVE_NICAM(msp)) {
 905                                 /* B/G NICAM */
 906                                 msp->second = carrier_detect_55[max2].cdo;
 907                                 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
 908                                 msp->nicam_on = 1;
 909                                 msp3400c_setcarrier(client, msp->second, msp->main);
 910                                 msp->watch_stereo = 1;
 911                         } else {
 912                                 goto no_second;
 913                         }
 914                         break;
 915                 case 2: /* 6.0 */
 916                         /* PAL I NICAM */
 917                         msp->second = MSP_CARRIER(6.552);
 918                         msp3400c_setmode(client, MSP_MODE_FM_NICAM2);
 919                         msp->nicam_on = 1;
 920                         msp3400c_setcarrier(client, msp->second, msp->main);
 921                         msp->watch_stereo = 1;
 922                         break;
 923                 case 3: /* 6.5 */
 924                         if (max2 == 1 || max2 == 2) {
 925                                 /* D/K FM-stereo */
 926                                 msp->second = carrier_detect_65[max2].cdo;
 927                                 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
 928                                 msp->nicam_on = 0;
 929                                 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
 930                                 msp->watch_stereo = 1;
 931                         } else if (max2 == 0 &&
 932                                    msp->norm == VIDEO_MODE_SECAM) {
 933                                 /* L NICAM or AM-mono */
 934                                 msp->second = carrier_detect_65[max2].cdo;
 935                                 msp3400c_setmode(client, MSP_MODE_AM_NICAM);
 936                                 msp->nicam_on = 0;
 937                                 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
 938                                 msp3400c_setcarrier(client, msp->second, msp->main);
 939                                 /* volume prescale for SCART (AM mono input) */
 940                                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000d, 0x1900);
 941                                 msp->watch_stereo = 1;
 942                         } else if (max2 == 0 && HAVE_NICAM(msp)) {
 943                                 /* D/K NICAM */
 944                                 msp->second = carrier_detect_65[max2].cdo;
 945                                 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
 946                                 msp->nicam_on = 1;
 947                                 msp3400c_setcarrier(client, msp->second, msp->main);
 948                                 msp->watch_stereo = 1;
 949                         } else {
 950                                 goto no_second;
 951                         }
 952                         break;
 953                 case 0: /* 4.5 */
 954                 default:
 955                 no_second:
 956                         msp->second = carrier_detect_main[max1].cdo;
 957                         msp3400c_setmode(client, MSP_MODE_FM_TERRA);
 958                         msp->nicam_on = 0;
 959                         msp3400c_setcarrier(client, msp->second, msp->main);
 960                         msp->stereo = VIDEO_SOUND_MONO;
 961                         msp3400c_setstereo(client, VIDEO_SOUND_MONO);
 962                         break;
 963                 }
 964
 965                 /* unmute + restore dfp registers */
 966                 msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
 967                 msp3400c_restore_dfp(client);
 968
 969                 if (msp->watch_stereo)
 970                         mod_timer(&msp->wake_stereo, jiffies+5*HZ);
 971
 972                 if (debug)
 973                         msp3400c_print_mode(msp);
 974
 975                 msp->active = 0;
 976         }
 977
 978 done:
 979         dprintk(KERN_DEBUG "msp3400: thread: exit\n");
 980         msp->active = 0;
 981         msp->thread = NULL;
 982
 983         if(msp->notify != NULL)
 984                 up(msp->notify);
 985         return 0;
 986 }
 987
 988 /* ----------------------------------------------------------------------- */
 989 /* this one uses the automatic sound standard detection of newer           */
 990 /* msp34xx chip versions                                                   */
 991
 992 static struct MODES {
 993         int retval;
 994         int main, second;
 995         char *name;
 996 } modelist[] = {
 997         { 0x0000, 0, 0, "ERROR" },
 998         { 0x0001, 0, 0, "autodetect start" },
 999         { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72  M Dual FM-Stereo" },
1000         { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74  B/G Dual FM-Stereo" },
1001         { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25  D/K1 Dual FM-Stereo" },
1002         { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74  D/K2 Dual FM-Stereo" },
1003         { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  D/K FM-Mono (HDEV3)" },
1004         { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85  B/G NICAM FM" },
1005         { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  L NICAM AM" },
1006         { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55  I NICAM FM" },
1007         { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM" },
1008         { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM (HDEV2)" },
1009         { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Stereo" },
1010         { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Mono + SAP" },
1011         { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M EIA-J Japan Stereo" },
1012         { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7  FM-Stereo Radio" },
1013         { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  SAT-Mono" },
1014         { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20  SAT-Stereo" },
1015         { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2  SAT ADR" },
1016         {     -1, 0, 0, NULL }, /* EOF */
1017 };
1018
1019 static int msp3410d_thread(void *data)
1020 {
1021         struct i2c_client *client = data;
1022         struct msp3400c *msp = i2c_get_clientdata(client);
1023         int mode,val,i,std;
1024
1025         lock_kernel();
1026         daemonize();
1027         sigfillset(&current->blocked);
1028         strcpy(current->comm,"msp3410 [auto]");
1029         msp->thread = current;
1030         unlock_kernel();
1031
1032         printk("msp3410: daemon started\n");
1033         if(msp->notify != NULL)
1034                 up(msp->notify);
1035
1036         for (;;) {
1037                 if (msp->rmmod)
1038                         goto done;
1039                 if (debug > 1)
1040                         printk(KERN_DEBUG "msp3410: thread: sleep\n");
1041                 interruptible_sleep_on(&msp->wq);
1042                 if (debug > 1)
1043                         printk(KERN_DEBUG "msp3410: thread: wakeup\n");
1044                 if (msp->rmmod || signal_pending(current))
1045                         goto done;
1046
1047                 msp->active = 1;
1048
1049                 if (msp->watch_stereo) {
1050                         watch_stereo(client);
1051                         msp->active = 0;
1052                         continue;
1053                 }
1054
1055                 /* some time for the tuner to sync */
1056                 current->state   = TASK_INTERRUPTIBLE;
1057                 schedule_timeout(HZ/5);
1058                 if (signal_pending(current))
1059                         goto done;
1060
1061         restart:
1062                 if (msp->mode == MSP_MODE_EXTERN) {
1063                         /* no carrier scan needed, just unmute */
1064                         dprintk(KERN_DEBUG "msp3410: thread: no carrier scan\n");
1065                         msp3400c_setvolume(client, msp->muted,
1066                                            msp->left, msp->right);
1067                         continue;
1068                 }
1069                 msp->restart = 0;
1070                 del_timer(&msp->wake_stereo);
1071                 msp->watch_stereo = 0;
1072
1073                 /* put into sane state (and mute) */
1074                 msp3400c_reset(client);
1075
1076                 /* start autodetect */
1077                 switch (msp->norm) {
1078                 case VIDEO_MODE_PAL:
1079                         mode = 0x1003;
1080                         std  = 1;
1081                         break;
1082                 case VIDEO_MODE_NTSC:  /* BTSC */
1083                         mode = 0x2003;
1084                         std  = 0x0020;
1085                         break;
1086                 case VIDEO_MODE_SECAM:
1087                         mode = 0x0003;
1088                         std  = 1;
1089                         break;
1090                 case VIDEO_MODE_RADIO:
1091                         mode = 0x0003;
1092                         std  = 0x0040;
1093                         break;
1094                 default:
1095                         mode = 0x0003;
1096                         std  = 1;
1097                         break;
1098                 }
1099                 msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode);
1100                 msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std);
1101
1102                 if (debug) {
1103                         int i;
1104                         for (i = 0; modelist[i].name != NULL; i++)
1105                                 if (modelist[i].retval == std)
1106                                         break;
1107                         printk(KERN_DEBUG "msp3410: setting mode: %s (0x%04x)\n",
1108                                modelist[i].name ? modelist[i].name : "unknown",std);
1109                 }
1110
1111                 if (std != 1) {
1112                         /* programmed some specific mode */
1113                         val = std;
1114                 } else {
1115                         /* triggered autodetect */
1116                         for (;;) {
1117                                 current->state   = TASK_INTERRUPTIBLE;
1118                                 schedule_timeout(HZ/10);
1119                                 if (signal_pending(current))
1120                                         goto done;
1121                                 if (msp->restart)
1122                                         goto restart;
1123
1124                                 /* check results */
1125                                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
1126                                 if (val < 0x07ff)
1127                                         break;
1128                                 dprintk(KERN_DEBUG "msp3410: detection still in progress\n");
1129                         }
1130                 }
1131                 for (i = 0; modelist[i].name != NULL; i++)
1132                         if (modelist[i].retval == val)
1133                                 break;
1134                 dprintk(KERN_DEBUG "msp3410: current mode: %s (0x%04x)\n",
1135                         modelist[i].name ? modelist[i].name : "unknown",
1136                         val);
1137                 msp->main   = modelist[i].main;
1138                 msp->second = modelist[i].second;
1139
1140                 if (amsound && (msp->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) {
1141                         /* autodetection has failed, let backup */
1142                         dprintk(KERN_DEBUG "msp3410: autodetection failed,"
1143                                 " switching to backup mode: %s (0x%04x)\n",
1144                                 modelist[8].name ? modelist[8].name : "unknown",val);
1145                         val = 0x0009;
1146                         msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, val);
1147                 }
1148
1149                 /* set various prescales */
1150                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x0d, 0x1900); /* scart */
1151                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM */
1152                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, 0x5a00); /* nicam */
1153
1154                 /* set stereo */
1155                 switch (val) {
1156                 case 0x0008: /* B/G NICAM */
1157                 case 0x000a: /* I NICAM */
1158                         if (val == 0x0008)
1159                                 msp->mode = MSP_MODE_FM_NICAM1;
1160                         else
1161                                 msp->mode = MSP_MODE_FM_NICAM2;
1162                         /* just turn on stereo */
1163                         msp->stereo = VIDEO_SOUND_STEREO;
1164                         msp->nicam_on = 1;
1165                         msp->watch_stereo = 1;
1166                         msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
1167                         break;
1168                 case 0x0009:
1169                         msp->mode = MSP_MODE_AM_NICAM;
1170                         msp->stereo = VIDEO_SOUND_MONO;
1171                         msp->nicam_on = 1;
1172                         msp3400c_setstereo(client,VIDEO_SOUND_MONO);
1173                         msp->watch_stereo = 1;
1174                         break;
1175                 case 0x0020: /* BTSC */
1176                         /* just turn on stereo */
1177                         msp->mode   = MSP_MODE_BTSC;
1178                         msp->stereo = VIDEO_SOUND_STEREO;
1179                         msp->nicam_on = 0;
1180                         msp->watch_stereo = 1;
1181                         msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
1182                         break;
1183                 case 0x0040: /* FM radio */
1184                         msp->mode   = MSP_MODE_FM_RADIO;
1185                         msp->stereo = VIDEO_SOUND_STEREO;
1186                         msp->nicam_on = 0;
1187                         msp->watch_stereo = 0;
1188                         /* not needed in theory if HAVE_RADIO(), but
1189                            short programming enables carrier mute */
1190                         msp3400c_setmode(client,MSP_MODE_FM_RADIO);
1191                         msp3400c_setcarrier(client, MSP_CARRIER(10.7),
1192                                             MSP_CARRIER(10.7));
1193                         /* scart routing */
1194                         msp3400c_set_scart(client,SCART_IN2,0);
1195 #if 0
1196                         /* radio from SCART_IN2 */
1197                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0220);
1198                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0220);
1199                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0220);
1200 #else
1201                         /* msp34xx does radio decoding */
1202                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0020);
1203                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0020);
1204                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0020);
1205 #endif
1206                         break;
1207                 case 0x0003:
1208                         msp->mode   = MSP_MODE_FM_TERRA;
1209                         msp->stereo = VIDEO_SOUND_MONO;
1210                         msp->nicam_on = 0;
1211                         msp->watch_stereo = 1;
1212                         break;
1213                 }
1214
1215                 /* unmute + restore dfp registers */
1216                 msp3400c_setbass(client, msp->bass);
1217                 msp3400c_settreble(client, msp->treble);
1218                 msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
1219                 msp3400c_restore_dfp(client);
1220
1221                 if (msp->watch_stereo)
1222                         mod_timer(&msp->wake_stereo, jiffies+HZ);
1223
1224                 msp->active = 0;
1225         }
1226
1227 done:
1228         dprintk(KERN_DEBUG "msp3410: thread: exit\n");
1229         msp->active = 0;
1230         msp->thread = NULL;
1231
1232         if(msp->notify != NULL)
1233                 up(msp->notify);
1234         return 0;
1235 }
1236
1237 /* ----------------------------------------------------------------------- */
1238
1239 static int msp_attach(struct i2c_adapter *adap, int addr,
1240                       unsigned short flags, int kind);
1241 static int msp_detach(struct i2c_client *client);
1242 static int msp_probe(struct i2c_adapter *adap);
1243 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg);
1244
1245 static struct i2c_driver driver = {
1246         .name           = "i2c msp3400 driver",
1247         .id             = I2C_DRIVERID_MSP3400,
1248         .flags          = I2C_DF_NOTIFY,
1249         .attach_adapter = msp_probe,
1250         .detach_client  = msp_detach,
1251         .command        = msp_command,
1252 };
1253
1254 static struct i2c_client client_template =
1255 {
1256         I2C_DEVNAME("(unset)"),
1257         .flags     = I2C_CLIENT_ALLOW_USE,
1258         .driver    = &driver,
1259 };
1260
1261 static int msp_attach(struct i2c_adapter *adap, int addr,
1262                       unsigned short flags, int kind)
1263 {
1264         DECLARE_MUTEX_LOCKED(sem);
1265         struct msp3400c *msp;
1266         struct i2c_client *c;
1267         int i, rc;
1268
1269         client_template.adapter = adap;
1270         client_template.addr = addr;
1271
1272         if (-1 == msp3400c_reset(&client_template)) {
1273                 dprintk("msp3400: no chip found\n");
1274                 return -1;
1275         }
1276
1277         if (NULL == (c = kmalloc(sizeof(struct i2c_client),GFP_KERNEL)))
1278                 return -ENOMEM;
1279         memcpy(c,&client_template,sizeof(struct i2c_client));
1280         if (NULL == (msp = kmalloc(sizeof(struct msp3400c),GFP_KERNEL))) {
1281                 kfree(c);
1282                 return -ENOMEM;
1283         }
1284
1285         memset(msp,0,sizeof(struct msp3400c));
1286         msp->left   = 65535;
1287         msp->right  = 65535;
1288         msp->bass   = 32768;
1289         msp->treble = 32768;
1290         msp->input  = -1;
1291         msp->muted  = 1;
1292         for (i = 0; i < DFP_COUNT; i++)
1293                 msp->dfp_regs[i] = -1;
1294
1295         i2c_set_clientdata(c, msp);
1296         init_waitqueue_head(&msp->wq);
1297
1298         if (-1 == msp3400c_reset(c)) {
1299                 kfree(msp);
1300                 kfree(c);
1301                 dprintk("msp3400: no chip found\n");
1302                 return -1;
1303         }
1304
1305         msp->rev1 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1e);
1306         if (-1 != msp->rev1)
1307                 msp->rev2 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1f);
1308         if ((-1 == msp->rev1) || (0 == msp->rev1 && 0 == msp->rev2)) {
1309                 kfree(msp);
1310                 kfree(c);
1311                 printk("msp3400: error while reading chip version\n");
1312                 return -1;
1313         }
1314
1315 #if 0
1316         /* this will turn on a 1kHz beep - might be useful for debugging... */
1317         msp3400c_write(c,I2C_MSP3400C_DFP, 0x0014, 0x1040);
1318 #endif
1319         msp3400c_setvolume(c,msp->muted,msp->left,msp->right);
1320
1321         sprintf(c->name,"MSP34%02d%c-%c%d",
1322                 (msp->rev2>>8)&0xff, (msp->rev1&0xff)+'@',
1323                 ((msp->rev1>>8)&0xff)+'@', msp->rev2&0x1f);
1324
1325         if (simple == -1) {
1326                 /* default mode */
1327                 msp->simple = HAVE_SIMPLE(msp);
1328         } else {
1329                 /* use insmod option */
1330                 msp->simple = simple;
1331         }
1332
1333         /* timer for stereo checking */
1334         init_timer(&msp->wake_stereo);
1335         msp->wake_stereo.function = msp3400c_stereo_wake;
1336         msp->wake_stereo.data     = (unsigned long)msp;
1337
1338         /* hello world :-) */
1339         printk(KERN_INFO "msp34xx: init: chip=%s",i2c_clientname(c));
1340         if (HAVE_NICAM(msp))
1341                 printk(" +nicam");
1342         if (HAVE_SIMPLE(msp))
1343                 printk(" +simple");
1344         if (HAVE_RADIO(msp))
1345                 printk(" +radio");
1346         printk("\n");
1347
1348         /* startup control thread */
1349         MOD_INC_USE_COUNT;
1350         msp->notify = &sem;
1351         rc = kernel_thread(msp->simple ? msp3410d_thread : msp3400c_thread,
1352                            (void *)c, 0);
1353         if (rc < 0)
1354                 printk(KERN_WARNING "msp34xx: kernel_thread() failed\n");
1355         else
1356                 down(&sem);
1357         msp->notify = NULL;
1358         wake_up_interruptible(&msp->wq);
1359
1360         /* update our own array */
1361         for (i = 0; i < MSP3400_MAX; i++) {
1362                 if (NULL == msps[i]) {
1363                         msps[i] = c;
1364                         break;
1365                 }
1366         }
1367
1368         /* done */
1369         i2c_attach_client(c);
1370         return 0;
1371 }
1372
1373 static int msp_detach(struct i2c_client *client)
1374 {
1375         DECLARE_MUTEX_LOCKED(sem);
1376         struct msp3400c *msp  = i2c_get_clientdata(client);
1377         int i;
1378
1379         /* shutdown control thread */
1380         del_timer(&msp->wake_stereo);
1381         if (msp->thread)
1382         {
1383                 msp->notify = &sem;
1384                 msp->rmmod = 1;
1385                 wake_up_interruptible(&msp->wq);
1386                 down(&sem);
1387                 msp->notify = NULL;
1388         }
1389         msp3400c_reset(client);
1390
1391         /* update our own array */
1392         for (i = 0; i < MSP3400_MAX; i++) {
1393                 if (client == msps[i]) {
1394                         msps[i] = NULL;
1395                         break;
1396                 }
1397         }
1398
1399         i2c_detach_client(client);
1400         kfree(msp);
1401         kfree(client);
1402         MOD_DEC_USE_COUNT;
1403         return 0;
1404 }
1405
1406 static int msp_probe(struct i2c_adapter *adap)
1407 {
1408 #ifdef I2C_ADAP_CLASS_TV_ANALOG
1409         if (adap->class & I2C_ADAP_CLASS_TV_ANALOG)
1410                 return i2c_probe(adap, &addr_data, msp_attach);
1411 #else
1412         if (adap->id == (I2C_ALGO_BIT | I2C_HW_B_BT848))
1413                 return i2c_probe(adap, &addr_data, msp_attach);
1414 #endif
1415         return 0;
1416 }
1417
1418 static void msp_wake_thread(struct i2c_client *client)
1419 {
1420         struct msp3400c *msp  = i2c_get_clientdata(client);
1421
1422         msp3400c_setvolume(client,msp->muted,0,0);
1423         msp->watch_stereo=0;
1424         del_timer(&msp->wake_stereo);
1425         if (msp->active)
1426                 msp->restart = 1;
1427         wake_up_interruptible(&msp->wq);
1428 }
1429
1430 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
1431 {
1432         struct msp3400c *msp  = i2c_get_clientdata(client);
1433         __u16           *sarg = arg;
1434 #if 0
1435         int             *iarg = (int*)arg;
1436 #endif
1437
1438         switch (cmd) {
1439
1440         case AUDC_SET_INPUT:
1441                 /* scart switching
1442                      - IN1 is often used for external input
1443                      - Hauppauge uses IN2 for the radio */
1444                 dprintk(KERN_DEBUG "msp34xx: AUDC_SET_INPUT(%d)\n",*sarg);
1445                 if (*sarg == msp->input)
1446                         break;
1447                 msp->input = *sarg;
1448                 switch (*sarg) {
1449                 case AUDIO_RADIO:
1450                         msp->mode   = MSP_MODE_FM_RADIO;
1451                         msp->stereo = VIDEO_SOUND_STEREO;
1452                         msp3400c_set_scart(client,SCART_IN2,0);
1453                         msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900);
1454                         msp3400c_setstereo(client,msp->stereo);
1455                         break;
1456                 case AUDIO_EXTERN:
1457                         msp->mode   = MSP_MODE_EXTERN;
1458                         msp->stereo = VIDEO_SOUND_STEREO;
1459                         msp3400c_set_scart(client,SCART_IN1,0);
1460                         msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900);
1461                         msp3400c_setstereo(client,msp->stereo);
1462                         break;
1463                 case AUDIO_TUNER:
1464                         msp->mode   = -1;
1465                         msp_wake_thread(client);
1466                         break;
1467                 default:
1468                         if (*sarg & AUDIO_MUTE)
1469                                 msp3400c_set_scart(client,SCART_MUTE,0);
1470                         break;
1471                 }
1472                 if (msp->active)
1473                         msp->restart = 1;
1474                 break;
1475
1476         case AUDC_SET_RADIO:
1477                 dprintk(KERN_DEBUG "msp34xx: AUDC_SET_RADIO\n");
1478                 msp->norm = VIDEO_MODE_RADIO;
1479                 msp->watch_stereo=0;
1480                 del_timer(&msp->wake_stereo);
1481                 dprintk(KERN_DEBUG "msp34xx: switching to radio mode\n");
1482                 if (msp->simple) {
1483                         /* the thread will do for us */
1484                         msp_wake_thread(client);
1485                 } else {
1486                         /* set msp3400 to FM radio mode */
1487                         msp3400c_setmode(client,MSP_MODE_FM_RADIO);
1488                         msp3400c_setcarrier(client, MSP_CARRIER(10.7),MSP_CARRIER(10.7));
1489                         msp3400c_setvolume(client,msp->muted,msp->left,msp->right);
1490                 }
1491                 if (msp->active)
1492                         msp->restart = 1;
1493                 break;
1494
1495 #if 1
1496         /* work-in-progress:  hook to control the DFP registers */
1497         case MSP_SET_DFPREG:
1498         {
1499                 struct msp_dfpreg *r = arg;
1500                 unsigned int i;
1501
1502                 if (r->reg < 0 || r->reg >= DFP_COUNT)
1503                         return -EINVAL;
1504                 for (i = 0; i < ARRAY_SIZE(bl_dfp); i++)
1505                         if (r->reg == bl_dfp[i])
1506                                 return -EINVAL;
1507                 msp->dfp_regs[r->reg] = r->value;
1508                 msp3400c_write(client,I2C_MSP3400C_DFP,r->reg,r->value);
1509                 return 0;
1510         }
1511         case MSP_GET_DFPREG:
1512         {
1513                 struct msp_dfpreg *r = arg;
1514
1515                 if (r->reg < 0 || r->reg >= DFP_COUNT)
1516                         return -EINVAL;
1517                 r->value = msp3400c_read(client,I2C_MSP3400C_DFP,r->reg);
1518                 return 0;
1519         }
1520 #endif
1521
1522         /* --- v4l ioctls --- */
1523         /* take care: bttv does userspace copying, we'll get a
1524            kernel pointer here... */
1525         case VIDIOCGAUDIO:
1526         {
1527                 struct video_audio *va = arg;
1528
1529                 dprintk(KERN_DEBUG "msp34xx: VIDIOCGAUDIO\n");
1530                 va->flags |= VIDEO_AUDIO_VOLUME |
1531                         VIDEO_AUDIO_BASS |
1532                         VIDEO_AUDIO_TREBLE |
1533                         VIDEO_AUDIO_MUTABLE;
1534                 if (msp->muted)
1535                         va->flags |= VIDEO_AUDIO_MUTE;
1536                 va->volume=max(msp->left,msp->right);
1537                 va->balance=(32768*min(msp->left,msp->right))/
1538                         (va->volume ? va->volume : 1);
1539                 va->balance=(msp->left<msp->right)?
1540                         (65535-va->balance) : va->balance;
1541                 if (0 == va->volume)
1542                         va->balance = 32768;
1543                 va->bass = msp->bass;
1544                 va->treble = msp->treble;
1545
1546                 if (msp->norm != VIDEO_MODE_RADIO) {
1547                         autodetect_stereo(client);
1548                         va->mode = msp->stereo;
1549                 }
1550                 break;
1551         }
1552         case VIDIOCSAUDIO:
1553         {
1554                 struct video_audio *va = arg;
1555
1556                 dprintk(KERN_DEBUG "msp34xx: VIDIOCSAUDIO\n");
1557                 msp->muted = (va->flags & VIDEO_AUDIO_MUTE);
1558                 msp->left = (min(65536 - va->balance,32768) *
1559                              va->volume) / 32768;
1560                 msp->right = (min(va->balance,(__u16)32768) *
1561                               va->volume) / 32768;
1562                 msp->bass = va->bass;
1563                 msp->treble = va->treble;
1564                 msp3400c_setvolume(client,msp->muted,msp->left,msp->right);
1565                 msp3400c_setbass(client,msp->bass);
1566                 msp3400c_settreble(client,msp->treble);
1567
1568                 if (va->mode != 0 && msp->norm != VIDEO_MODE_RADIO) {
1569                         msp->watch_stereo=0;
1570                         del_timer(&msp->wake_stereo);
1571                         msp->stereo = va->mode & 0x0f;
1572                         msp3400c_setstereo(client,va->mode & 0x0f);
1573                 }
1574                 break;
1575         }
1576         case VIDIOCSCHAN:
1577         {
1578                 struct video_channel *vc = arg;
1579
1580                 dprintk(KERN_DEBUG "msp34xx: VIDIOCSCHAN\n");
1581                 msp->norm = vc->norm;
1582                 break;
1583         }
1584         case VIDIOCSFREQ:
1585         {
1586                 /* new channel -- kick audio carrier scan */
1587                 dprintk(KERN_DEBUG "msp34xx: VIDIOCSFREQ\n");
1588                 msp_wake_thread(client);
1589                 break;
1590         }
1591
1592         default:
1593                 /* nothing */
1594                 break;
1595         }
1596         return 0;
1597 }
1598
1599 /* ----------------------------------------------------------------------- */
1600
1601 static int msp3400_init_module(void)
1602 {
1603         i2c_add_driver(&driver);
1604         return 0;
1605 }
1606
1607 static void msp3400_cleanup_module(void)
1608 {
1609         i2c_del_driver(&driver);
1610 }
1611
1612 module_init(msp3400_init_module);
1613 module_exit(msp3400_cleanup_module);
1614
1615 /*
1616  * Overrides for Emacs so that we follow Linus's tabbing style.
1617  * ---------------------------------------------------------------------------
1618  * Local variables:
1619  * c-basic-offset: 8
1620  * End:
1621  */