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/moduleparam.h>
  40 #include <linux/kernel.h>
  41 #include <linux/sched.h>
  42 #include <linux/string.h>
  43 #include <linux/timer.h>
  44 #include <linux/delay.h>
  45 #include <linux/errno.h>
  46 #include <linux/slab.h>
  47 #include <linux/i2c.h>
  48 #include <linux/videodev.h>
  49 #include <linux/init.h>
  50 #include <linux/smp_lock.h>
  51 #include <linux/kthread.h>
  52 #include <linux/suspend.h>
  53 #include <asm/semaphore.h>
  54 #include <asm/pgtable.h>
  55
  56 #include <media/audiochip.h>
  57 #include <media/id.h>
  58 #include "msp3400.h"
  59
  60 #define OPMODE_AUTO    -1
  61 #define OPMODE_MANUAL   0
  62 #define OPMODE_SIMPLE   1   /* use short programming (>= msp3410 only) */
  63 #define OPMODE_SIMPLER  2   /* use shorter programming (>= msp34xxG)   */
  64
  65 /* insmod parameters */
  66 static int opmode   = OPMODE_AUTO;
  67 static int debug    = 0;    /* debug output */
  68 static int once     = 0;    /* no continous stereo monitoring */
  69 static int amsound  = 0;    /* hard-wire AM sound at 6.5 Hz (france),
  70                                the autoscan seems work well only with FM... */
  71 static int standard = 1;    /* Override auto detect of audio standard, if needed. */
  72 static int dolby    = 0;
  73
  74 static int stereo_threshold = 0x190; /* a2 threshold for stereo/bilingual
  75                                         (msp34xxg only) 0x00a0-0x03c0 */
  76 #define DFP_COUNT 0x41
  77 static const int bl_dfp[] = {
  78         0x00, 0x01, 0x02, 0x03, 0x06, 0x08, 0x09, 0x0a,
  79         0x0b, 0x0d, 0x0e, 0x10
  80 };
  81
  82 #define IS_MSP34XX_G(msp) ((msp)->opmode==2)
  83
  84 struct msp3400c {
  85         int rev1,rev2;
  86
  87         int opmode;
  88         int nicam;
  89         int mode;
  90         int norm;
  91         int stereo;
  92         int nicam_on;
  93         int acb;
  94         int main, second;       /* sound carrier */
  95         int input;
  96         int source;             /* see msp34xxg_set_source */
  97
  98         /* v4l2 */
  99         int audmode;
 100         int rxsubchans;
 101
 102         int muted;
 103         int left, right;        /* volume */
 104         int bass, treble;
 105
 106         /* shadow register set */
 107         int dfp_regs[DFP_COUNT];
 108
 109         /* thread */
 110         struct task_struct   *kthread;
 111         wait_queue_head_t    wq;
 112         int                  restart:1;
 113         int                  watch_stereo:1;
 114 };
 115
 116 #define MIN(a,b) (((a)>(b))?(b):(a))
 117 #define MAX(a,b) (((a)>(b))?(a):(b))
 118 #define HAVE_NICAM(msp)   (((msp->rev2>>8) & 0xff) != 00)
 119 #define HAVE_SIMPLE(msp)  ((msp->rev1      & 0xff) >= 'D'-'@')
 120 #define HAVE_SIMPLER(msp) ((msp->rev1      & 0xff) >= 'G'-'@')
 121 #define HAVE_RADIO(msp)   ((msp->rev1      & 0xff) >= 'G'-'@')
 122
 123 #define VIDEO_MODE_RADIO 16      /* norm magic for radio mode */
 124
 125 /* ---------------------------------------------------------------------- */
 126
 127 #define dprintk      if (debug >= 1) printk
 128 #define d2printk     if (debug >= 2) printk
 129 #define dprintk_trace if (debug>=16) printk
 130
 131 /* read-only */
 132 module_param(opmode,           int, 0444);
 133
 134 /* read-write */
 135 module_param(once,             int, 0644);
 136 module_param(debug,            int, 0644);
 137 module_param(stereo_threshold, int, 0644);
 138 module_param(standard,         int, 0644);
 139 module_param(amsound,          int, 0644);
 140 module_param(dolby,            int, 0644);
 141
 142 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Simple, 2=Simpler");
 143 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
 144 MODULE_PARM_DESC(debug, "Enable debug messages");
 145 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
 146 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
 147 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
 148 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
 149
 150 /* ---------------------------------------------------------------------- */
 151
 152 #define I2C_MSP3400C       0x80
 153 #define I2C_MSP3400C_ALT   0x88
 154
 155 #define I2C_MSP3400C_DEM   0x10
 156 #define I2C_MSP3400C_DFP   0x12
 157
 158 /* Addresses to scan */
 159 static unsigned short normal_i2c[] = {
 160         I2C_MSP3400C      >> 1,
 161         I2C_MSP3400C_ALT  >> 1,
 162         I2C_CLIENT_END
 163 };
 164 I2C_CLIENT_INSMOD;
 165
 166 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
 167 MODULE_AUTHOR("Gerd Knorr");
 168 MODULE_LICENSE("GPL");
 169
 170 /* ----------------------------------------------------------------------- */
 171 /* functions for talking to the MSP3400C Sound processor                   */
 172
 173 static int msp3400c_reset(struct i2c_client *client)
 174 {
 175         /* reset and read revision code */
 176         static char reset_off[3] = { 0x00, 0x80, 0x00 };
 177         static char reset_on[3]  = { 0x00, 0x00, 0x00 };
 178         static char write[3]     = { I2C_MSP3400C_DFP + 1, 0x00, 0x1e };
 179         char read[2];
 180         struct i2c_msg reset[2] = {
 181                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
 182                 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on  },
 183         };
 184         struct i2c_msg test[2] = {
 185                 { client->addr, 0,        3, write },
 186                 { client->addr, I2C_M_RD, 2, read  },
 187         };
 188
 189         dprintk_trace("trace: msp3400c_reset\n");
 190         if ( (1 != i2c_transfer(client->adapter,&reset[0],1)) ||
 191              (1 != i2c_transfer(client->adapter,&reset[1],1)) ||
 192              (2 != i2c_transfer(client->adapter,test,2)) ) {
 193                 printk(KERN_ERR "msp3400: chip reset failed\n");
 194                 return -1;
 195         }
 196         return 0;
 197 }
 198
 199 static int msp3400c_read(struct i2c_client *client, int dev, int addr)
 200 {
 201         int err,retval;
 202
 203         unsigned char write[3];
 204         unsigned char read[2];
 205         struct i2c_msg msgs[2] = {
 206                 { client->addr, 0,        3, write },
 207                 { client->addr, I2C_M_RD, 2, read  }
 208         };
 209
 210         write[0] = dev+1;
 211         write[1] = addr >> 8;
 212         write[2] = addr & 0xff;
 213
 214         for (err = 0; err < 3;) {
 215                 if (2 == i2c_transfer(client->adapter,msgs,2))
 216                         break;
 217                 err++;
 218                 printk(KERN_WARNING
 219                        "msp34xx: I/O error #%d (read 0x%02x/0x%02x)\n", err,
 220                        dev, addr);
 221                 current->state = TASK_INTERRUPTIBLE;
 222                 schedule_timeout(msecs_to_jiffies(10));
 223         }
 224         if (3 == err) {
 225                 printk(KERN_WARNING
 226                        "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
 227                 msp3400c_reset(client);
 228                 return -1;
 229         }
 230         retval = read[0] << 8 | read[1];
 231         dprintk_trace("trace: msp3400c_read(0x%x, 0x%x): 0x%x\n", dev, addr,
 232                       retval);
 233         return retval;
 234 }
 235
 236 static int msp3400c_write(struct i2c_client *client, int dev, int addr, int val)
 237 {
 238         int err;
 239         unsigned char buffer[5];
 240
 241         buffer[0] = dev;
 242         buffer[1] = addr >> 8;
 243         buffer[2] = addr &  0xff;
 244         buffer[3] = val  >> 8;
 245         buffer[4] = val  &  0xff;
 246
 247         dprintk_trace("trace: msp3400c_write(0x%x, 0x%x, 0x%x)\n", dev, addr,
 248                       val);
 249         for (err = 0; err < 3;) {
 250                 if (5 == i2c_master_send(client, buffer, 5))
 251                         break;
 252                 err++;
 253                 printk(KERN_WARNING
 254                        "msp34xx: I/O error #%d (write 0x%02x/0x%02x)\n", err,
 255                        dev, addr);
 256                 current->state = TASK_INTERRUPTIBLE;
 257                 schedule_timeout(msecs_to_jiffies(10));
 258         }
 259         if (3 == err) {
 260                 printk(KERN_WARNING
 261                        "msp34xx: giving up, reseting chip. Sound will go off, sorry folks :-|\n");
 262                 msp3400c_reset(client);
 263                 return -1;
 264         }
 265         return 0;
 266 }
 267
 268 /* ------------------------------------------------------------------------ */
 269
 270 /* This macro is allowed for *constants* only, gcc must calculate it
 271    at compile time.  Remember -- no floats in kernel mode */
 272 #define MSP_CARRIER(freq) ((int)((float)(freq/18.432)*(1<<24)))
 273
 274 #define MSP_MODE_AM_DETECT   0
 275 #define MSP_MODE_FM_RADIO    2
 276 #define MSP_MODE_FM_TERRA    3
 277 #define MSP_MODE_FM_SAT      4
 278 #define MSP_MODE_FM_NICAM1   5
 279 #define MSP_MODE_FM_NICAM2   6
 280 #define MSP_MODE_AM_NICAM    7
 281 #define MSP_MODE_BTSC        8
 282 #define MSP_MODE_EXTERN      9
 283
 284 static struct MSP_INIT_DATA_DEM {
 285         int fir1[6];
 286         int fir2[6];
 287         int cdo1;
 288         int cdo2;
 289         int ad_cv;
 290         int mode_reg;
 291         int dfp_src;
 292         int dfp_matrix;
 293 } msp_init_data[] = {
 294         {       /* AM (for carrier detect / msp3400) */
 295                 {75, 19, 36, 35, 39, 40},
 296                 {75, 19, 36, 35, 39, 40},
 297                 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
 298                 0x00d0, 0x0500, 0x0020, 0x3000
 299         },{     /* AM (for carrier detect / msp3410) */
 300                 {-1, -1, -8, 2, 59, 126},
 301                 {-1, -1, -8, 2, 59, 126},
 302                 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
 303                 0x00d0, 0x0100, 0x0020, 0x3000
 304         },{     /* FM Radio */
 305                 {-8, -8, 4, 6, 78, 107},
 306                 {-8, -8, 4, 6, 78, 107},
 307                 MSP_CARRIER(10.7), MSP_CARRIER(10.7),
 308                 0x00d0, 0x0480, 0x0020, 0x3000
 309         },{     /* Terrestial FM-mono + FM-stereo */
 310                 {3, 18, 27, 48, 66, 72},
 311                 {3, 18, 27, 48, 66, 72},
 312                 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
 313                 0x00d0, 0x0480, 0x0030, 0x3000
 314         },{     /* Sat FM-mono */
 315                 { 1, 9, 14, 24, 33, 37},
 316                 { 3, 18, 27, 48, 66, 72},
 317                 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
 318                 0x00c6, 0x0480, 0x0000, 0x3000
 319         },{     /* NICAM/FM --  B/G (5.5/5.85), D/K (6.5/5.85) */
 320                 {-2, -8, -10, 10, 50, 86},
 321                 {3, 18, 27, 48, 66, 72},
 322                 MSP_CARRIER(5.5), MSP_CARRIER(5.5),
 323                 0x00d0, 0x0040, 0x0120, 0x3000
 324         },{     /* NICAM/FM -- I (6.0/6.552) */
 325                 {2, 4, -6, -4, 40, 94},
 326                 {3, 18, 27, 48, 66, 72},
 327                 MSP_CARRIER(6.0), MSP_CARRIER(6.0),
 328                 0x00d0, 0x0040, 0x0120, 0x3000
 329         },{     /* NICAM/AM -- L (6.5/5.85) */
 330                 {-2, -8, -10, 10, 50, 86},
 331                 {-4, -12, -9, 23, 79, 126},
 332                 MSP_CARRIER(6.5), MSP_CARRIER(6.5),
 333                 0x00c6, 0x0140, 0x0120, 0x7c03
 334         },
 335 };
 336
 337 struct CARRIER_DETECT {
 338         int   cdo;
 339         char *name;
 340 };
 341
 342 static struct CARRIER_DETECT carrier_detect_main[] = {
 343         /* main carrier */
 344         { MSP_CARRIER(4.5),        "4.5   NTSC"                   },
 345         { MSP_CARRIER(5.5),        "5.5   PAL B/G"                },
 346         { MSP_CARRIER(6.0),        "6.0   PAL I"                  },
 347         { MSP_CARRIER(6.5),        "6.5   PAL D/K + SAT + SECAM"  }
 348 };
 349
 350 static struct CARRIER_DETECT carrier_detect_55[] = {
 351         /* PAL B/G */
 352         { MSP_CARRIER(5.7421875),  "5.742 PAL B/G FM-stereo"     },
 353         { MSP_CARRIER(5.85),       "5.85  PAL B/G NICAM"         }
 354 };
 355
 356 static struct CARRIER_DETECT carrier_detect_65[] = {
 357         /* PAL SAT / SECAM */
 358         { MSP_CARRIER(5.85),       "5.85  PAL D/K + SECAM NICAM" },
 359         { MSP_CARRIER(6.2578125),  "6.25  PAL D/K1 FM-stereo" },
 360         { MSP_CARRIER(6.7421875),  "6.74  PAL D/K2 FM-stereo" },
 361         { MSP_CARRIER(7.02),       "7.02  PAL SAT FM-stereo s/b" },
 362         { MSP_CARRIER(7.20),       "7.20  PAL SAT FM-stereo s"   },
 363         { MSP_CARRIER(7.38),       "7.38  PAL SAT FM-stereo b"   },
 364 };
 365
 366 #define CARRIER_COUNT(x) (sizeof(x)/sizeof(struct CARRIER_DETECT))
 367
 368 /* ----------------------------------------------------------------------- */
 369
 370 static int scarts[3][9] = {
 371         /* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
 372         { 0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
 373         { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
 374         { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
 375 };
 376
 377 static char *scart_names[] = {
 378         "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
 379 };
 380
 381 static void msp3400c_set_scart(struct i2c_client *client, int in, int out)
 382 {
 383         struct msp3400c *msp = i2c_get_clientdata(client);
 384
 385         if (-1 == scarts[out][in])
 386                 return;
 387
 388         dprintk("msp34xx: scart switch: %s => %d\n", scart_names[in], out);
 389         msp->acb &= ~scarts[out][SCART_MASK];
 390         msp->acb |=  scarts[out][in];
 391         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0013, msp->acb);
 392 }
 393
 394 /* ------------------------------------------------------------------------ */
 395
 396 static void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2)
 397 {
 398         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0093, cdo1 & 0xfff);
 399         msp3400c_write(client,I2C_MSP3400C_DEM, 0x009b, cdo1 >> 12);
 400         msp3400c_write(client,I2C_MSP3400C_DEM, 0x00a3, cdo2 & 0xfff);
 401         msp3400c_write(client,I2C_MSP3400C_DEM, 0x00ab, cdo2 >> 12);
 402         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
 403 }
 404
 405 static void msp3400c_setvolume(struct i2c_client *client,
 406                                int muted, int left, int right)
 407  {
 408         int vol = 0, val = 0, balance = 0;
 409
 410         if (!muted) {
 411                 /* 0x7f instead if 0x73 here has sound quality issues,
 412                  * probably due to overmodulation + clipping ... */
 413                 vol = (left > right) ? left : right;
 414                 val = (vol * 0x73 / 65535) << 8;
 415         }
 416         if (vol > 0) {
 417                 balance = ((right - left) * 127) / vol;
 418         }
 419
 420         dprintk("msp34xx: setvolume: mute=%s %d:%d  v=0x%02x b=0x%02x\n",
 421                 muted ? "on" : "off", left, right, val >> 8, balance);
 422         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */
 423         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones  */
 424         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007,
 425                                         muted ? 0x1 : (val | 0x1));
 426         msp3400c_write(client, I2C_MSP3400C_DFP, 0x0001, balance << 8);
 427 }
 428
 429 static void msp3400c_setbass(struct i2c_client *client, int bass)
 430 {
 431         int val = ((bass-32768) * 0x60 / 65535) << 8;
 432
 433         dprintk("msp34xx: setbass: %d 0x%02x\n", bass, val >> 8);
 434         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0002, val); /* loudspeaker */
 435 }
 436
 437 static void msp3400c_settreble(struct i2c_client *client, int treble)
 438 {
 439         int val = ((treble-32768) * 0x60 / 65535) << 8;
 440
 441         dprintk("msp34xx: settreble: %d 0x%02x\n",treble, val>>8);
 442         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0003, val); /* loudspeaker */
 443 }
 444
 445 static void msp3400c_setmode(struct i2c_client *client, int type)
 446 {
 447         struct msp3400c *msp = i2c_get_clientdata(client);
 448         int i;
 449
 450         dprintk("msp3400: setmode: %d\n",type);
 451         msp->mode       = type;
 452         msp->audmode    = V4L2_TUNER_MODE_MONO;
 453         msp->rxsubchans = V4L2_TUNER_SUB_MONO;
 454
 455         msp3400c_write(client,I2C_MSP3400C_DEM, 0x00bb,          /* ad_cv */
 456                        msp_init_data[type].ad_cv);
 457
 458         for (i = 5; i >= 0; i--)                                   /* fir 1 */
 459                 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0001,
 460                                msp_init_data[type].fir1[i]);
 461
 462         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0004); /* fir 2 */
 463         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0040);
 464         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0000);
 465         for (i = 5; i >= 0; i--)
 466                 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005,
 467                                msp_init_data[type].fir2[i]);
 468
 469         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0083,     /* MODE_REG */
 470                        msp_init_data[type].mode_reg);
 471
 472         msp3400c_setcarrier(client, msp_init_data[type].cdo1,
 473                             msp_init_data[type].cdo2);
 474
 475         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
 476
 477         if (dolby) {
 478                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
 479                                0x0520); /* I2S1 */
 480                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
 481                                0x0620); /* I2S2 */
 482                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
 483                                msp_init_data[type].dfp_src);
 484         } else {
 485                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
 486                                msp_init_data[type].dfp_src);
 487                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
 488                                msp_init_data[type].dfp_src);
 489                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
 490                                msp_init_data[type].dfp_src);
 491         }
 492         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,
 493                        msp_init_data[type].dfp_src);
 494         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e,
 495                        msp_init_data[type].dfp_matrix);
 496
 497         if (HAVE_NICAM(msp)) {
 498                 /* nicam prescale */
 499                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0010, 0x5a00); /* was: 0x3000 */
 500         }
 501 }
 502
 503 /* given a bitmask of VIDEO_SOUND_XXX returns the "best" in the bitmask */
 504 static int best_video_sound(int rxsubchans)
 505 {
 506         if (rxsubchans & V4L2_TUNER_SUB_STEREO)
 507                 return V4L2_TUNER_MODE_STEREO;
 508         if (rxsubchans & V4L2_TUNER_SUB_LANG1)
 509                 return V4L2_TUNER_MODE_LANG1;
 510         if (rxsubchans & V4L2_TUNER_SUB_LANG2)
 511                 return V4L2_TUNER_MODE_LANG2;
 512         return V4L2_TUNER_MODE_MONO;
 513 }
 514
 515 /* turn on/off nicam + stereo */
 516 static void msp3400c_setstereo(struct i2c_client *client, int mode)
 517 {
 518         static char *strmode[] = { "0", "mono", "stereo", "3",
 519                 "lang1", "5", "6", "7", "lang2"
 520         };
 521         struct msp3400c *msp = i2c_get_clientdata(client);
 522         int nicam = 0;          /* channel source: FM/AM or nicam */
 523         int src = 0;
 524
 525         if (IS_MSP34XX_G(msp)) {
 526                 /* this method would break everything, let's make sure
 527                  * it's never called
 528                  */
 529                 dprintk
 530                     ("msp34xxg: DEBUG WARNING setstereo called with mode=%d instead of set_source (ignored)\n",
 531                      mode);
 532                 return;
 533         }
 534
 535         /* switch demodulator */
 536         switch (msp->mode) {
 537         case MSP_MODE_FM_TERRA:
 538                 dprintk("msp3400: FM setstereo: %s\n",
 539                         strmode[mode]);
 540                 msp3400c_setcarrier(client,msp->second,msp->main);
 541                 switch (mode) {
 542                 case V4L2_TUNER_MODE_STEREO:
 543                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001);
 544                         break;
 545                 case V4L2_TUNER_MODE_MONO:
 546                 case V4L2_TUNER_MODE_LANG1:
 547                 case V4L2_TUNER_MODE_LANG2:
 548                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3000);
 549                         break;
 550                 }
 551                 break;
 552         case MSP_MODE_FM_SAT:
 553                 dprintk("msp3400: SAT setstereo: %s\n", strmode[mode]);
 554                 switch (mode) {
 555                 case V4L2_TUNER_MODE_MONO:
 556                         msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
 557                         break;
 558                 case V4L2_TUNER_MODE_STEREO:
 559                         msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
 560                         break;
 561                 case V4L2_TUNER_MODE_LANG1:
 562                         msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
 563                         break;
 564                 case V4L2_TUNER_MODE_LANG2:
 565                         msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
 566                         break;
 567                 }
 568                 break;
 569         case MSP_MODE_FM_NICAM1:
 570         case MSP_MODE_FM_NICAM2:
 571         case MSP_MODE_AM_NICAM:
 572                 dprintk("msp3400: NICAM setstereo: %s\n",strmode[mode]);
 573                 msp3400c_setcarrier(client,msp->second,msp->main);
 574                 if (msp->nicam_on)
 575                         nicam=0x0100;
 576                 break;
 577         case MSP_MODE_BTSC:
 578                 dprintk("msp3400: BTSC setstereo: %s\n",strmode[mode]);
 579                 nicam=0x0300;
 580                 break;
 581         case MSP_MODE_EXTERN:
 582                 dprintk("msp3400: extern setstereo: %s\n",strmode[mode]);
 583                 nicam = 0x0200;
 584                 break;
 585         case MSP_MODE_FM_RADIO:
 586                 dprintk("msp3400: FM-Radio setstereo: %s\n",strmode[mode]);
 587                 break;
 588         default:
 589                 dprintk("msp3400: mono setstereo\n");
 590                 return;
 591         }
 592
 593         /* switch audio */
 594         switch (best_video_sound(mode)) {
 595         case V4L2_TUNER_MODE_STEREO:
 596                 src = 0x0020 | nicam;
 597                 break;
 598         case V4L2_TUNER_MODE_MONO:
 599                 if (msp->mode == MSP_MODE_AM_NICAM) {
 600                         dprintk("msp3400: switching to AM mono\n");
 601                         /* AM mono decoding is handled by tuner, not MSP chip */
 602                         /* SCART switching control register */
 603                         msp3400c_set_scart(client,SCART_MONO,0);
 604                         src = 0x0200;
 605                         break;
 606                 }
 607         case V4L2_TUNER_MODE_LANG1:
 608                 src = 0x0000 | nicam;
 609                 break;
 610         case V4L2_TUNER_MODE_LANG2:
 611                 src = 0x0010 | nicam;
 612                 break;
 613         }
 614         dprintk("msp3400: setstereo final source/matrix = 0x%x\n", src);
 615
 616         if (dolby) {
 617                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,0x0520);
 618                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,0x0620);
 619                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
 620                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
 621         } else {
 622                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,src);
 623                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,src);
 624                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
 625                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
 626         }
 627 }
 628
 629 static void
 630 msp3400c_print_mode(struct msp3400c *msp)
 631 {
 632         if (msp->main == msp->second) {
 633                 dprintk("msp3400: mono sound carrier: %d.%03d MHz\n",
 634                        msp->main/910000,(msp->main/910)%1000);
 635         } else {
 636                 dprintk("msp3400: main sound carrier: %d.%03d MHz\n",
 637                        msp->main/910000,(msp->main/910)%1000);
 638         }
 639         if (msp->mode == MSP_MODE_FM_NICAM1 || msp->mode == MSP_MODE_FM_NICAM2)
 640                 dprintk("msp3400: NICAM/FM carrier   : %d.%03d MHz\n",
 641                        msp->second/910000,(msp->second/910)%1000);
 642         if (msp->mode == MSP_MODE_AM_NICAM)
 643                 dprintk("msp3400: NICAM/AM carrier   : %d.%03d MHz\n",
 644                        msp->second/910000,(msp->second/910)%1000);
 645         if (msp->mode == MSP_MODE_FM_TERRA &&
 646             msp->main != msp->second) {
 647                 dprintk("msp3400: FM-stereo carrier : %d.%03d MHz\n",
 648                        msp->second/910000,(msp->second/910)%1000);
 649         }
 650 }
 651
 652 #define MSP3400_MAX 4
 653 static struct i2c_client *msps[MSP3400_MAX];
 654 static void msp3400c_restore_dfp(struct i2c_client *client)
 655 {
 656         struct msp3400c *msp = i2c_get_clientdata(client);
 657         int i;
 658
 659         for (i = 0; i < DFP_COUNT; i++) {
 660                 if (-1 == msp->dfp_regs[i])
 661                         continue;
 662                 msp3400c_write(client, I2C_MSP3400C_DFP, i, msp->dfp_regs[i]);
 663         }
 664 }
 665
 666 /* if the dfp_regs is set, set what's in there. Otherwise, set the default value */
 667 static int msp3400c_write_dfp_with_default(struct i2c_client *client,
 668                                         int addr, int default_value)
 669 {
 670         struct msp3400c *msp = i2c_get_clientdata(client);
 671         int value = default_value;
 672         if (addr < DFP_COUNT && -1 != msp->dfp_regs[addr])
 673                 value = msp->dfp_regs[addr];
 674         return msp3400c_write(client, I2C_MSP3400C_DFP, addr, value);
 675 }
 676
 677 /* ----------------------------------------------------------------------- */
 678
 679 struct REGISTER_DUMP {
 680         int   addr;
 681         char *name;
 682 };
 683
 684 struct REGISTER_DUMP d1[] = {
 685         {0x007e, "autodetect"},
 686         {0x0023, "C_AD_BITS "},
 687         {0x0038, "ADD_BITS  "},
 688         {0x003e, "CIB_BITS  "},
 689         {0x0057, "ERROR_RATE"},
 690 };
 691
 692 static int autodetect_stereo(struct i2c_client *client)
 693 {
 694         struct msp3400c *msp = i2c_get_clientdata(client);
 695         int val;
 696         int rxsubchans = msp->rxsubchans;
 697         int newnicam   = msp->nicam_on;
 698         int update = 0;
 699
 700         switch (msp->mode) {
 701         case MSP_MODE_FM_TERRA:
 702                 val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x18);
 703                 if (val > 32767)
 704                         val -= 65536;
 705                 dprintk("msp34xx: stereo detect register: %d\n",val);
 706                 if (val > 4096) {
 707                         rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO;
 708                 } else if (val < -4096) {
 709                         rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
 710                 } else {
 711                         rxsubchans = V4L2_TUNER_SUB_MONO;
 712                 }
 713                 newnicam = 0;
 714                 break;
 715         case MSP_MODE_FM_NICAM1:
 716         case MSP_MODE_FM_NICAM2:
 717         case MSP_MODE_AM_NICAM:
 718                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x23);
 719                 dprintk("msp34xx: nicam sync=%d, mode=%d\n",
 720                         val & 1, (val & 0x1e) >> 1);
 721
 722                 if (val & 1) {
 723                         /* nicam synced */
 724                         switch ((val & 0x1e) >> 1)  {
 725                         case 0:
 726                         case 8:
 727                                 rxsubchans = V4L2_TUNER_SUB_STEREO;
 728                                 break;
 729                         case 1:
 730                         case 9:
 731                                 rxsubchans = V4L2_TUNER_SUB_MONO
 732                                         | V4L2_TUNER_SUB_LANG1;
 733                                 break;
 734                         case 2:
 735                         case 10:
 736                                 rxsubchans = V4L2_TUNER_SUB_MONO
 737                                         | V4L2_TUNER_SUB_LANG1
 738                                         | V4L2_TUNER_SUB_LANG2;
 739                                 break;
 740                         default:
 741                                 rxsubchans = V4L2_TUNER_SUB_MONO;
 742                                 break;
 743                         }
 744                         newnicam=1;
 745                 } else {
 746                         newnicam = 0;
 747                         rxsubchans = V4L2_TUNER_SUB_MONO;
 748                 }
 749                 break;
 750         case MSP_MODE_BTSC:
 751                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x200);
 752                 dprintk("msp3410: status=0x%x (pri=%s, sec=%s, %s%s%s)\n",
 753                         val,
 754                         (val & 0x0002) ? "no"     : "yes",
 755                         (val & 0x0004) ? "no"     : "yes",
 756                         (val & 0x0040) ? "stereo" : "mono",
 757                         (val & 0x0080) ? ", nicam 2nd mono" : "",
 758                         (val & 0x0100) ? ", bilingual/SAP"  : "");
 759                 rxsubchans = V4L2_TUNER_SUB_MONO;
 760                 if (val & 0x0040) rxsubchans |= V4L2_TUNER_SUB_STEREO;
 761                 if (val & 0x0100) rxsubchans |= V4L2_TUNER_SUB_LANG1;
 762                 break;
 763         }
 764         if (rxsubchans != msp->rxsubchans) {
 765                 update = 1;
 766                 dprintk("msp34xx: watch: rxsubchans %d => %d\n",
 767                         msp->rxsubchans,rxsubchans);
 768                 msp->rxsubchans = rxsubchans;
 769         }
 770         if (newnicam != msp->nicam_on) {
 771                 update = 1;
 772                 dprintk("msp34xx: watch: nicam %d => %d\n",
 773                         msp->nicam_on,newnicam);
 774                 msp->nicam_on = newnicam;
 775         }
 776         return update;
 777 }
 778
 779 /*
 780  * A kernel thread for msp3400 control -- we don't want to block the
 781  * in the ioctl while doing the sound carrier & stereo detect
 782  */
 783
 784 static int msp34xx_sleep(struct msp3400c *msp, int timeout)
 785 {
 786         DECLARE_WAITQUEUE(wait, current);
 787
 788         add_wait_queue(&msp->wq, &wait);
 789         if (!kthread_should_stop()) {
 790                 if (timeout < 0) {
 791                         set_current_state(TASK_INTERRUPTIBLE);
 792                         schedule();
 793                 } else {
 794                         schedule_timeout_interruptible
 795                                                 (msecs_to_jiffies(timeout));
 796                 }
 797         }
 798
 799         remove_wait_queue(&msp->wq, &wait);
 800         try_to_freeze();
 801         return msp->restart;
 802 }
 803
 804 /* stereo/multilang monitoring */
 805 static void watch_stereo(struct i2c_client *client)
 806 {
 807         struct msp3400c *msp = i2c_get_clientdata(client);
 808
 809         if (autodetect_stereo(client)) {
 810                 if (msp->stereo & V4L2_TUNER_MODE_STEREO)
 811                         msp3400c_setstereo(client, V4L2_TUNER_MODE_STEREO);
 812                 else if (msp->stereo & VIDEO_SOUND_LANG1)
 813                         msp3400c_setstereo(client, V4L2_TUNER_MODE_LANG1);
 814                 else
 815                         msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
 816         }
 817
 818         if (once)
 819                 msp->watch_stereo = 0;
 820 }
 821
 822 static int msp3400c_thread(void *data)
 823 {
 824         struct i2c_client *client = data;
 825         struct msp3400c *msp = i2c_get_clientdata(client);
 826         struct CARRIER_DETECT *cd;
 827         int count, max1,max2,val1,val2, val,this;
 828
 829         printk("msp3400: kthread started\n");
 830         for (;;) {
 831                 d2printk("msp3400: thread: sleep\n");
 832                 msp34xx_sleep(msp,-1);
 833                 d2printk("msp3400: thread: wakeup\n");
 834
 835         restart:
 836                 dprintk("msp3410: thread: restart scan\n");
 837                 msp->restart = 0;
 838                 if (kthread_should_stop())
 839                         break;
 840
 841                 if (VIDEO_MODE_RADIO == msp->norm ||
 842                     MSP_MODE_EXTERN  == msp->mode) {
 843                         /* no carrier scan, just unmute */
 844                         printk("msp3400: thread: no carrier scan\n");
 845                         msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
 846                         continue;
 847                 }
 848
 849                 /* mute */
 850                 msp3400c_setvolume(client, msp->muted, 0, 0);
 851                 msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
 852                 val1 = val2 = 0;
 853                 max1 = max2 = -1;
 854                 msp->watch_stereo = 0;
 855
 856                 /* some time for the tuner to sync */
 857                 if (msp34xx_sleep(msp,200))
 858                         goto restart;
 859
 860                 /* carrier detect pass #1 -- main carrier */
 861                 cd = carrier_detect_main;
 862                 count = CARRIER_COUNT(carrier_detect_main);
 863
 864                 if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
 865                         /* autodetect doesn't work well with AM ... */
 866                         max1 = 3;
 867                         count = 0;
 868                         dprintk("msp3400: AM sound override\n");
 869                 }
 870
 871                 for (this = 0; this < count; this++) {
 872                         msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
 873                         if (msp34xx_sleep(msp,100))
 874                                 goto restart;
 875                         val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
 876                         if (val > 32767)
 877                                 val -= 65536;
 878                         if (val1 < val)
 879                                 val1 = val, max1 = this;
 880                         dprintk("msp3400: carrier1 val: %5d / %s\n", val,cd[this].name);
 881                 }
 882
 883                 /* carrier detect pass #2 -- second (stereo) carrier */
 884                 switch (max1) {
 885                 case 1: /* 5.5 */
 886                         cd = carrier_detect_55;
 887                         count = CARRIER_COUNT(carrier_detect_55);
 888                         break;
 889                 case 3: /* 6.5 */
 890                         cd = carrier_detect_65;
 891                         count = CARRIER_COUNT(carrier_detect_65);
 892                         break;
 893                 case 0: /* 4.5 */
 894                 case 2: /* 6.0 */
 895                 default:
 896                         cd = NULL;
 897                         count = 0;
 898                         break;
 899                 }
 900
 901                 if (amsound && (msp->norm == VIDEO_MODE_SECAM)) {
 902                         /* autodetect doesn't work well with AM ... */
 903                         cd = NULL;
 904                         count = 0;
 905                         max2 = 0;
 906                 }
 907                 for (this = 0; this < count; this++) {
 908                         msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
 909                         if (msp34xx_sleep(msp,100))
 910                                 goto restart;
 911                         val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
 912                         if (val > 32767)
 913                                 val -= 65536;
 914                         if (val2 < val)
 915                                 val2 = val, max2 = this;
 916                         dprintk("msp3400: carrier2 val: %5d / %s\n", val,cd[this].name);
 917                 }
 918
 919                 /* programm the msp3400 according to the results */
 920                 msp->main   = carrier_detect_main[max1].cdo;
 921                 switch (max1) {
 922                 case 1: /* 5.5 */
 923                         if (max2 == 0) {
 924                                 /* B/G FM-stereo */
 925                                 msp->second = carrier_detect_55[max2].cdo;
 926                                 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
 927                                 msp->nicam_on = 0;
 928                                 msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
 929                                 msp->watch_stereo = 1;
 930                         } else if (max2 == 1 && HAVE_NICAM(msp)) {
 931                                 /* B/G NICAM */
 932                                 msp->second = carrier_detect_55[max2].cdo;
 933                                 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
 934                                 msp->nicam_on = 1;
 935                                 msp3400c_setcarrier(client, msp->second, msp->main);
 936                                 msp->watch_stereo = 1;
 937                         } else {
 938                                 goto no_second;
 939                         }
 940                         break;
 941                 case 2: /* 6.0 */
 942                         /* PAL I NICAM */
 943                         msp->second = MSP_CARRIER(6.552);
 944                         msp3400c_setmode(client, MSP_MODE_FM_NICAM2);
 945                         msp->nicam_on = 1;
 946                         msp3400c_setcarrier(client, msp->second, msp->main);
 947                         msp->watch_stereo = 1;
 948                         break;
 949                 case 3: /* 6.5 */
 950                         if (max2 == 1 || max2 == 2) {
 951                                 /* D/K FM-stereo */
 952                                 msp->second = carrier_detect_65[max2].cdo;
 953                                 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
 954                                 msp->nicam_on = 0;
 955                                 msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
 956                                 msp->watch_stereo = 1;
 957                         } else if (max2 == 0 &&
 958                                    msp->norm == VIDEO_MODE_SECAM) {
 959                                 /* L NICAM or AM-mono */
 960                                 msp->second = carrier_detect_65[max2].cdo;
 961                                 msp3400c_setmode(client, MSP_MODE_AM_NICAM);
 962                                 msp->nicam_on = 0;
 963                                 msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
 964                                 msp3400c_setcarrier(client, msp->second, msp->main);
 965                                 /* volume prescale for SCART (AM mono input) */
 966                                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000d, 0x1900);
 967                                 msp->watch_stereo = 1;
 968                         } else if (max2 == 0 && HAVE_NICAM(msp)) {
 969                                 /* D/K NICAM */
 970                                 msp->second = carrier_detect_65[max2].cdo;
 971                                 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
 972                                 msp->nicam_on = 1;
 973                                 msp3400c_setcarrier(client, msp->second, msp->main);
 974                                 msp->watch_stereo = 1;
 975                         } else {
 976                                 goto no_second;
 977                         }
 978                         break;
 979                 case 0: /* 4.5 */
 980                 default:
 981                 no_second:
 982                         msp->second = carrier_detect_main[max1].cdo;
 983                         msp3400c_setmode(client, MSP_MODE_FM_TERRA);
 984                         msp->nicam_on = 0;
 985                         msp3400c_setcarrier(client, msp->second, msp->main);
 986                         msp->rxsubchans = V4L2_TUNER_SUB_MONO;
 987                         msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO);
 988                         break;
 989                 }
 990
 991                 /* unmute */
 992                 msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
 993                 msp3400c_restore_dfp(client);
 994
 995                 if (debug)
 996                         msp3400c_print_mode(msp);
 997
 998                 /* monitor tv audio mode */
 999                 while (msp->watch_stereo) {
1000                         if (msp34xx_sleep(msp,5000))
1001                                 goto restart;
1002                         watch_stereo(client);
1003                 }
1004         }
1005         dprintk("msp3400: thread: exit\n");
1006         return 0;
1007 }
1008
1009 /* ----------------------------------------------------------------------- */
1010 /* this one uses the automatic sound standard detection of newer           */
1011 /* msp34xx chip versions                                                   */
1012
1013 static struct MODES {
1014         int retval;
1015         int main, second;
1016         char *name;
1017 } modelist[] = {
1018         { 0x0000, 0, 0, "ERROR" },
1019         { 0x0001, 0, 0, "autodetect start" },
1020         { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72  M Dual FM-Stereo" },
1021         { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74  B/G Dual FM-Stereo" },
1022         { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25  D/K1 Dual FM-Stereo" },
1023         { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74  D/K2 Dual FM-Stereo" },
1024         { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  D/K FM-Mono (HDEV3)" },
1025         { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85  B/G NICAM FM" },
1026         { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  L NICAM AM" },
1027         { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55  I NICAM FM" },
1028         { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM" },
1029         { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM (HDEV2)" },
1030         { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Stereo" },
1031         { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Mono + SAP" },
1032         { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M EIA-J Japan Stereo" },
1033         { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7  FM-Stereo Radio" },
1034         { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  SAT-Mono" },
1035         { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20  SAT-Stereo" },
1036         { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2  SAT ADR" },
1037         {     -1, 0, 0, NULL }, /* EOF */
1038 };
1039
1040 static inline const char *msp34xx_standard_mode_name(int mode)
1041 {
1042         int i;
1043         for (i = 0; modelist[i].name != NULL; i++)
1044                 if (modelist[i].retval == mode)
1045                         return modelist[i].name;
1046         return "unknown";
1047 }
1048
1049 static int msp34xx_modus(int norm)
1050 {
1051         switch (norm) {
1052         case VIDEO_MODE_PAL:
1053                 dprintk("msp34xx: video mode selected to PAL\n");
1054
1055 #if 1
1056                 /* experimental: not sure this works with all chip versions */
1057                 return 0x7003;
1058 #else
1059                 /* previous value, try this if it breaks ... */
1060                 return 0x1003;
1061 #endif
1062         case VIDEO_MODE_NTSC:  /* BTSC */
1063                 dprintk("msp34xx: video mode selected to NTSC\n");
1064                 return 0x2003;
1065         case VIDEO_MODE_SECAM:
1066                 dprintk("msp34xx: video mode selected to SECAM\n");
1067                 return 0x0003;
1068         case VIDEO_MODE_RADIO:
1069                 dprintk("msp34xx: video mode selected to Radio\n");
1070                 return 0x0003;
1071         case VIDEO_MODE_AUTO:
1072                 dprintk("msp34xx: video mode selected to Auto\n");
1073                 return 0x2003;
1074         default:
1075                 return 0x0003;
1076         }
1077 }
1078
1079 static int msp34xx_standard(int norm)
1080 {
1081         switch (norm) {
1082         case VIDEO_MODE_PAL:
1083                 return 1;
1084         case VIDEO_MODE_NTSC:  /* BTSC */
1085                 return 0x0020;
1086         case VIDEO_MODE_SECAM:
1087                 return 1;
1088         case VIDEO_MODE_RADIO:
1089                 return 0x0040;
1090         default:
1091                 return 1;
1092         }
1093 }
1094
1095 static int msp3410d_thread(void *data)
1096 {
1097         struct i2c_client *client = data;
1098         struct msp3400c *msp = i2c_get_clientdata(client);
1099         int mode,val,i,std;
1100
1101         printk("msp3410: daemon started\n");
1102         for (;;) {
1103                 d2printk("msp3410: thread: sleep\n");
1104                 msp34xx_sleep(msp,-1);
1105                 d2printk("msp3410: thread: wakeup\n");
1106
1107         restart:
1108                 dprintk("msp3410: thread: restart scan\n");
1109                 msp->restart = 0;
1110                 if (kthread_should_stop())
1111                         break;
1112
1113                 if (msp->mode == MSP_MODE_EXTERN) {
1114                         /* no carrier scan needed, just unmute */
1115                         dprintk("msp3410: thread: no carrier scan\n");
1116                 msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
1117                         continue;
1118                 }
1119
1120                 /* put into sane state (and mute) */
1121                 msp3400c_reset(client);
1122
1123                 /* some time for the tuner to sync */
1124                 if (msp34xx_sleep(msp,200))
1125                         goto restart;
1126
1127                 /* start autodetect */
1128                 mode = msp34xx_modus(msp->norm);
1129                 std  = msp34xx_standard(msp->norm);
1130                 msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode);
1131                 msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std);
1132                 msp->watch_stereo = 0;
1133
1134                 if (debug)
1135                         dprintk("msp3410: setting mode: %s (0x%04x)\n",
1136                                msp34xx_standard_mode_name(std) ,std);
1137
1138                 if (std != 1) {
1139                         /* programmed some specific mode */
1140                         val = std;
1141                 } else {
1142                         /* triggered autodetect */
1143                         for (;;) {
1144                                 if (msp34xx_sleep(msp,100))
1145                                         goto restart;
1146
1147                                 /* check results */
1148                                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
1149                                 if (val < 0x07ff)
1150                                         break;
1151                                 dprintk("msp3410: detection still in progress\n");
1152                         }
1153                 }
1154                 for (i = 0; modelist[i].name != NULL; i++)
1155                         if (modelist[i].retval == val)
1156                                 break;
1157                 dprintk("msp3410: current mode: %s (0x%04x)\n",
1158                         modelist[i].name ? modelist[i].name : "unknown",
1159                         val);
1160                 msp->main   = modelist[i].main;
1161                 msp->second = modelist[i].second;
1162
1163                 if (amsound && (msp->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) {
1164                         /* autodetection has failed, let backup */
1165                         dprintk("msp3410: autodetection failed,"
1166                                 " switching to backup mode: %s (0x%04x)\n",
1167                                 modelist[8].name ? modelist[8].name : "unknown",val);
1168                         val = 0x0009;
1169                         msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, val);
1170                 }
1171
1172                 /* set various prescales */
1173                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x0d, 0x1900); /* scart */
1174                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM */
1175                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, 0x5a00); /* nicam */
1176
1177                 /* set stereo */
1178                 switch (val) {
1179                 case 0x0008: /* B/G NICAM */
1180                 case 0x000a: /* I NICAM */
1181                         if (val == 0x0008)
1182                                 msp->mode = MSP_MODE_FM_NICAM1;
1183                         else
1184                                 msp->mode = MSP_MODE_FM_NICAM2;
1185                         /* just turn on stereo */
1186                         msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
1187                         msp->nicam_on = 1;
1188                         msp->watch_stereo = 1;
1189                         msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO);
1190                         break;
1191                 case 0x0009:
1192                         msp->mode = MSP_MODE_AM_NICAM;
1193                         msp->rxsubchans = V4L2_TUNER_SUB_MONO;
1194                         msp->nicam_on = 1;
1195                         msp3400c_setstereo(client,V4L2_TUNER_MODE_MONO);
1196                         msp->watch_stereo = 1;
1197                         break;
1198                 case 0x0020: /* BTSC */
1199                         /* just turn on stereo */
1200                         msp->mode = MSP_MODE_BTSC;
1201                         msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
1202                         msp->nicam_on = 0;
1203                         msp->watch_stereo = 1;
1204                         msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO);
1205                         break;
1206                 case 0x0040: /* FM radio */
1207                         msp->mode   = MSP_MODE_FM_RADIO;
1208                         msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
1209                         msp->audmode = V4L2_TUNER_MODE_STEREO;
1210                         msp->nicam_on = 0;
1211                         msp->watch_stereo = 0;
1212                         /* not needed in theory if HAVE_RADIO(), but
1213                            short programming enables carrier mute */
1214                         msp3400c_setmode(client,MSP_MODE_FM_RADIO);
1215                         msp3400c_setcarrier(client, MSP_CARRIER(10.7),
1216                                             MSP_CARRIER(10.7));
1217                         /* scart routing */
1218                         msp3400c_set_scart(client,SCART_IN2,0);
1219                         /* msp34xx does radio decoding */
1220                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0020);
1221                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0020);
1222                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0020);
1223                         break;
1224                 case 0x0003:
1225                 case 0x0004:
1226                 case 0x0005:
1227                         msp->mode   = MSP_MODE_FM_TERRA;
1228                         msp->rxsubchans = V4L2_TUNER_SUB_MONO;
1229                         msp->audmode = V4L2_TUNER_MODE_MONO;
1230                         msp->nicam_on = 0;
1231                         msp->watch_stereo = 1;
1232                         break;
1233                 }
1234
1235                 /* unmute, restore misc registers */
1236                 msp3400c_setbass(client, msp->bass);
1237                 msp3400c_settreble(client, msp->treble);
1238                 msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
1239                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x0013, msp->acb);
1240                 msp3400c_restore_dfp(client);
1241
1242                 /* monitor tv audio mode */
1243                 while (msp->watch_stereo) {
1244                         if (msp34xx_sleep(msp,5000))
1245                                 goto restart;
1246                         watch_stereo(client);
1247                 }
1248         }
1249         dprintk("msp3410: thread: exit\n");
1250         return 0;
1251 }
1252
1253 /* ----------------------------------------------------------------------- */
1254 /* msp34xxG + (simpler no-thread)                                          */
1255 /* this one uses both automatic standard detection and automatic sound     */
1256 /* select which are available in the newer G versions                      */
1257 /* struct msp: only norm, acb and source are really used in this mode      */
1258
1259 static void msp34xxg_set_source(struct i2c_client *client, int source);
1260
1261 /* (re-)initialize the msp34xxg, according to the current norm in msp->norm
1262  * return 0 if it worked, -1 if it failed
1263  */
1264 static int msp34xxg_reset(struct i2c_client *client)
1265 {
1266         struct msp3400c *msp = i2c_get_clientdata(client);
1267         int modus,std;
1268
1269         if (msp3400c_reset(client))
1270                 return -1;
1271
1272         /* make sure that input/output is muted (paranoid mode) */
1273         if (msp3400c_write(client,
1274                            I2C_MSP3400C_DFP,
1275                            0x13, /* ACB */
1276                            0x0f20 /* mute DSP input, mute SCART 1 */))
1277                 return -1;
1278
1279         /* step-by-step initialisation, as described in the manual */
1280         modus = msp34xx_modus(msp->norm);
1281         std   = msp34xx_standard(msp->norm);
1282         modus &= ~0x03; /* STATUS_CHANGE=0 */
1283         modus |= 0x01;  /* AUTOMATIC_SOUND_DETECTION=1 */
1284         if (msp3400c_write(client,
1285                            I2C_MSP3400C_DEM,
1286                            0x30/*MODUS*/,
1287                            modus))
1288                 return -1;
1289         if (msp3400c_write(client,
1290                            I2C_MSP3400C_DEM,
1291                            0x20/*standard*/,
1292                            std))
1293                 return -1;
1294
1295         /* write the dfps that may have an influence on
1296            standard/audio autodetection right now */
1297         msp34xxg_set_source(client, msp->source);
1298
1299         if (msp3400c_write_dfp_with_default(client, 0x0e,       /* AM/FM Prescale */
1300                                             0x3000
1301                                             /* default: [15:8] 75khz deviation */
1302             ))
1303                 return -1;
1304
1305         if (msp3400c_write_dfp_with_default(client, 0x10,       /* NICAM Prescale */
1306                                             0x5a00
1307                                             /* default: 9db gain (as recommended) */
1308             ))
1309                 return -1;
1310
1311         return 0;
1312 }
1313
1314 static int msp34xxg_thread(void *data)
1315 {
1316         struct i2c_client *client = data;
1317         struct msp3400c *msp = i2c_get_clientdata(client);
1318         int val, std, i;
1319
1320         printk("msp34xxg: daemon started\n");
1321         msp->source = 1; /* default */
1322         for (;;) {
1323                 d2printk("msp34xxg: thread: sleep\n");
1324                 msp34xx_sleep(msp,-1);
1325                 d2printk("msp34xxg: thread: wakeup\n");
1326
1327         restart:
1328                 dprintk("msp34xxg: thread: restart scan\n");
1329                 msp->restart = 0;
1330                 if (kthread_should_stop())
1331                         break;
1332
1333                 /* setup the chip*/
1334                 msp34xxg_reset(client);
1335                 std = standard;
1336                 if (std != 0x01)
1337                         goto unmute;
1338
1339                 /* watch autodetect */
1340                 dprintk("msp34xxg: triggered autodetect, waiting for result\n");
1341                 for (i = 0; i < 10; i++) {
1342                         if (msp34xx_sleep(msp,100))
1343                                 goto restart;
1344
1345                         /* check results */
1346                         val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
1347                         if (val < 0x07ff) {
1348                                 std = val;
1349                                 break;
1350                         }
1351                         dprintk("msp34xxg: detection still in progress\n");
1352                 }
1353                 if (0x01 == std) {
1354                         dprintk("msp34xxg: detection still in progress after 10 tries. giving up.\n");
1355                         continue;
1356                 }
1357
1358         unmute:
1359                 dprintk("msp34xxg: current mode: %s (0x%04x)\n",
1360                         msp34xx_standard_mode_name(std), std);
1361
1362                 /* unmute: dispatch sound to scart output, set scart volume */
1363                 dprintk("msp34xxg: unmute\n");
1364
1365                 msp3400c_setbass(client, msp->bass);
1366                 msp3400c_settreble(client, msp->treble);
1367                 msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
1368
1369                 /* restore ACB */
1370                 if (msp3400c_write(client,
1371                                    I2C_MSP3400C_DFP,
1372                                    0x13, /* ACB */
1373                                    msp->acb))
1374                         return -1;
1375         }
1376         dprintk("msp34xxg: thread: exit\n");
1377         return 0;
1378 }
1379
1380 /* set the same 'source' for the loudspeaker, scart and quasi-peak detector
1381  * the value for source is the same as bit 15:8 of DFP registers 0x08,
1382  * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B
1383  *
1384  * this function replaces msp3400c_setstereo
1385  */
1386 static void msp34xxg_set_source(struct i2c_client *client, int source)
1387 {
1388         struct msp3400c *msp = i2c_get_clientdata(client);
1389
1390         /* fix matrix mode to stereo and let the msp choose what
1391          * to output according to 'source', as recommended
1392          * for MONO (source==0) downmixing set bit[7:0] to 0x30
1393          */
1394         int value = (source&0x07)<<8|(source==0 ? 0x30:0x20);
1395         dprintk("msp34xxg: set source to %d (0x%x)\n", source, value);
1396         msp3400c_write(client,
1397                        I2C_MSP3400C_DFP,
1398                        0x08, /* Loudspeaker Output */
1399                        value);
1400         msp3400c_write(client,
1401                        I2C_MSP3400C_DFP,
1402                        0x0a, /* SCART1 DA Output */
1403                        value);
1404         msp3400c_write(client,
1405                        I2C_MSP3400C_DFP,
1406                        0x0c, /* Quasi-peak detector */
1407                        value);
1408         /*
1409          * set identification threshold. Personally, I
1410          * I set it to a higher value that the default
1411          * of 0x190 to ignore noisy stereo signals.
1412          * this needs tuning. (recommended range 0x00a0-0x03c0)
1413          * 0x7f0 = forced mono mode
1414          */
1415         msp3400c_write(client,
1416                        I2C_MSP3400C_DEM,
1417                        0x22, /* a2 threshold for stereo/bilingual */
1418                        stereo_threshold);
1419         msp->source=source;
1420 }
1421
1422 static void msp34xxg_detect_stereo(struct i2c_client *client)
1423 {
1424         struct msp3400c *msp = i2c_get_clientdata(client);
1425
1426         int status = msp3400c_read(client,
1427                                    I2C_MSP3400C_DEM,
1428                                    0x0200 /* STATUS */);
1429         int is_bilingual = status&0x100;
1430         int is_stereo = status&0x40;
1431
1432         msp->rxsubchans = 0;
1433         if (is_stereo)
1434                 msp->rxsubchans |= V4L2_TUNER_SUB_STEREO;
1435         else
1436                 msp->rxsubchans |= V4L2_TUNER_SUB_MONO;
1437         if (is_bilingual) {
1438                 msp->rxsubchans |= V4L2_TUNER_SUB_LANG1|V4L2_TUNER_SUB_LANG2;
1439                 /* I'm supposed to check whether it's SAP or not
1440                  * and set only LANG2/SAP in this case. Yet, the MSP
1441                  * does a lot of work to hide this and handle everything
1442                  * the same way. I don't want to work around it so unless
1443                  * this is a problem, I'll handle SAP just like lang1/lang2.
1444                  */
1445         }
1446         dprintk("msp34xxg: status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
1447                 status, is_stereo, is_bilingual, msp->rxsubchans);
1448 }
1449
1450 static void msp34xxg_set_audmode(struct i2c_client *client, int audmode)
1451 {
1452         struct msp3400c *msp = i2c_get_clientdata(client);
1453         int source;
1454
1455         switch (audmode) {
1456         case V4L2_TUNER_MODE_MONO:
1457                 source=0; /* mono only */
1458                 break;
1459         case V4L2_TUNER_MODE_STEREO:
1460                 source=1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */
1461                 /* problem: that could also mean 2 (scart input) */
1462                 break;
1463         case V4L2_TUNER_MODE_LANG1:
1464                 source=3; /* stereo or A */
1465                 break;
1466         case V4L2_TUNER_MODE_LANG2:
1467                 source=4; /* stereo or B */
1468                 break;
1469         default:
1470                 audmode = 0;
1471                 source  = 1;
1472                 break;
1473         }
1474         msp->audmode = audmode;
1475         msp34xxg_set_source(client, source);
1476 }
1477
1478
1479 /* ----------------------------------------------------------------------- */
1480
1481 static int msp_attach(struct i2c_adapter *adap, int addr, int kind);
1482 static int msp_detach(struct i2c_client *client);
1483 static int msp_probe(struct i2c_adapter *adap);
1484 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg);
1485
1486 static int msp_suspend(struct device * dev, pm_message_t state);
1487 static int msp_resume(struct device * dev);
1488
1489 static void msp_wake_thread(struct i2c_client *client);
1490
1491 static struct i2c_driver driver = {
1492         .owner          = THIS_MODULE,
1493         .name           = "i2c msp3400 driver",
1494         .id             = I2C_DRIVERID_MSP3400,
1495         .flags          = I2C_DF_NOTIFY,
1496         .attach_adapter = msp_probe,
1497         .detach_client  = msp_detach,
1498         .command        = msp_command,
1499         .driver = {
1500                 .suspend = msp_suspend,
1501                 .resume  = msp_resume,
1502         },
1503 };
1504
1505 static struct i2c_client client_template =
1506 {
1507         .name      = "(unset)",
1508         .flags     = I2C_CLIENT_ALLOW_USE,
1509         .driver    = &driver,
1510 };
1511
1512 static int msp_attach(struct i2c_adapter *adap, int addr, int kind)
1513 {
1514         struct msp3400c *msp;
1515         struct i2c_client *c;
1516         int (*thread_func)(void *data) = NULL;
1517         int i;
1518
1519         client_template.adapter = adap;
1520         client_template.addr = addr;
1521
1522         if (-1 == msp3400c_reset(&client_template)) {
1523                 dprintk("msp34xx: no chip found\n");
1524                 return -1;
1525         }
1526
1527         if (NULL == (c = kmalloc(sizeof(struct i2c_client),GFP_KERNEL)))
1528                 return -ENOMEM;
1529         memcpy(c,&client_template,sizeof(struct i2c_client));
1530         if (NULL == (msp = kmalloc(sizeof(struct msp3400c),GFP_KERNEL))) {
1531                 kfree(c);
1532                 return -ENOMEM;
1533         }
1534
1535         memset(msp,0,sizeof(struct msp3400c));
1536         msp->norm = VIDEO_MODE_NTSC;
1537         msp->left = 58880;      /* 0db gain */
1538         msp->right = 58880;     /* 0db gain */
1539         msp->bass = 32768;
1540         msp->treble = 32768;
1541         msp->input = -1;
1542         msp->muted = 0;
1543         for (i = 0; i < DFP_COUNT; i++)
1544                 msp->dfp_regs[i] = -1;
1545
1546         i2c_set_clientdata(c, msp);
1547         init_waitqueue_head(&msp->wq);
1548
1549         if (-1 == msp3400c_reset(c)) {
1550                 kfree(msp);
1551                 kfree(c);
1552                 dprintk("msp34xx: no chip found\n");
1553                 return -1;
1554         }
1555
1556         msp->rev1 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1e);
1557         if (-1 != msp->rev1)
1558                 msp->rev2 = msp3400c_read(c, I2C_MSP3400C_DFP, 0x1f);
1559         if ((-1 == msp->rev1) || (0 == msp->rev1 && 0 == msp->rev2)) {
1560                 kfree(msp);
1561                 kfree(c);
1562                 dprintk("msp34xx: error while reading chip version\n");
1563                 return -1;
1564         }
1565         printk(KERN_INFO "msp34xx: rev1=0x%04x, rev2=0x%04x\n", msp->rev1, msp->rev2);
1566
1567         msp3400c_setvolume(c, msp->muted, msp->left, msp->right);
1568
1569         snprintf(c->name, sizeof(c->name), "MSP34%02d%c-%c%d",
1570                  (msp->rev2>>8)&0xff, (msp->rev1&0xff)+'@',
1571                  ((msp->rev1>>8)&0xff)+'@', msp->rev2&0x1f);
1572
1573         msp->opmode = opmode;
1574         if (OPMODE_AUTO == msp->opmode) {
1575                 if (HAVE_SIMPLER(msp))
1576                         msp->opmode = OPMODE_SIMPLER;
1577                 else if (HAVE_SIMPLE(msp))
1578                         msp->opmode = OPMODE_SIMPLE;
1579                 else
1580                         msp->opmode = OPMODE_MANUAL;
1581         }
1582
1583         /* hello world :-) */
1584         printk(KERN_INFO "msp34xx: init: chip=%s", c->name);
1585         if (HAVE_NICAM(msp))
1586                 printk(" +nicam");
1587         if (HAVE_SIMPLE(msp))
1588                 printk(" +simple");
1589         if (HAVE_SIMPLER(msp))
1590                 printk(" +simpler");
1591         if (HAVE_RADIO(msp))
1592                 printk(" +radio");
1593
1594         /* version-specific initialization */
1595         switch (msp->opmode) {
1596         case OPMODE_MANUAL:
1597                 printk(" mode=manual");
1598                 thread_func = msp3400c_thread;
1599                 break;
1600         case OPMODE_SIMPLE:
1601                 printk(" mode=simple");
1602                 thread_func = msp3410d_thread;
1603                 break;
1604         case OPMODE_SIMPLER:
1605                 printk(" mode=simpler");
1606                 thread_func = msp34xxg_thread;
1607                 break;
1608         }
1609         printk("\n");
1610
1611         /* startup control thread if needed */
1612         if (thread_func) {
1613                 msp->kthread = kthread_run(thread_func, c, "msp34xx");
1614
1615                 if (NULL == msp->kthread)
1616                         printk(KERN_WARNING "msp34xx: kernel_thread() failed\n");
1617                 msp_wake_thread(c);
1618         }
1619
1620         /* done */
1621         i2c_attach_client(c);
1622
1623         /* update our own array */
1624         for (i = 0; i < MSP3400_MAX; i++) {
1625                 if (NULL == msps[i]) {
1626                         msps[i] = c;
1627                         break;
1628                 }
1629         }
1630
1631         return 0;
1632 }
1633
1634 static int msp_detach(struct i2c_client *client)
1635 {
1636         struct msp3400c *msp  = i2c_get_clientdata(client);
1637         int i;
1638
1639         /* shutdown control thread */
1640         if (msp->kthread) {
1641                 msp->restart = 1;
1642                 kthread_stop(msp->kthread);
1643         }
1644         msp3400c_reset(client);
1645
1646         /* update our own array */
1647         for (i = 0; i < MSP3400_MAX; i++) {
1648                 if (client == msps[i]) {
1649                         msps[i] = NULL;
1650                         break;
1651                 }
1652         }
1653
1654         i2c_detach_client(client);
1655
1656         kfree(msp);
1657         kfree(client);
1658         return 0;
1659 }
1660
1661 static int msp_probe(struct i2c_adapter *adap)
1662 {
1663         if (adap->class & I2C_CLASS_TV_ANALOG)
1664                 return i2c_probe(adap, &addr_data, msp_attach);
1665         return 0;
1666 }
1667
1668 static void msp_wake_thread(struct i2c_client *client)
1669 {
1670         struct msp3400c *msp  = i2c_get_clientdata(client);
1671
1672         if (NULL == msp->kthread)
1673                 return;
1674         msp3400c_setvolume(client,msp->muted,0,0);
1675         msp->watch_stereo = 0;
1676         msp->restart = 1;
1677         wake_up_interruptible(&msp->wq);
1678 }
1679
1680 /* ----------------------------------------------------------------------- */
1681
1682 static int mode_v4l2_to_v4l1(int rxsubchans)
1683 {
1684         int mode = 0;
1685
1686         if (rxsubchans & V4L2_TUNER_SUB_STEREO)
1687                 mode |= VIDEO_SOUND_STEREO;
1688         if (rxsubchans & V4L2_TUNER_SUB_LANG2)
1689                 mode |= VIDEO_SOUND_LANG2;
1690         if (rxsubchans & V4L2_TUNER_SUB_LANG1)
1691                 mode |= VIDEO_SOUND_LANG1;
1692         if (0 == mode)
1693                 mode |= VIDEO_SOUND_MONO;
1694         return mode;
1695 }
1696
1697 static int mode_v4l1_to_v4l2(int mode)
1698 {
1699         if (mode & VIDEO_SOUND_STEREO)
1700                 return V4L2_TUNER_MODE_STEREO;
1701         if (mode & VIDEO_SOUND_LANG2)
1702                 return V4L2_TUNER_MODE_LANG2;
1703         if (mode & VIDEO_SOUND_LANG1)
1704                 return V4L2_TUNER_MODE_LANG1;
1705         return V4L2_TUNER_MODE_MONO;
1706 }
1707
1708 static void msp_any_detect_stereo(struct i2c_client *client)
1709 {
1710         struct msp3400c *msp  = i2c_get_clientdata(client);
1711
1712         switch (msp->opmode) {
1713         case OPMODE_MANUAL:
1714         case OPMODE_SIMPLE:
1715                 autodetect_stereo(client);
1716                 break;
1717         case OPMODE_SIMPLER:
1718                 msp34xxg_detect_stereo(client);
1719                 break;
1720         }
1721 }
1722
1723 static void msp_any_set_audmode(struct i2c_client *client, int audmode)
1724 {
1725         struct msp3400c *msp  = i2c_get_clientdata(client);
1726
1727         switch (msp->opmode) {
1728         case OPMODE_MANUAL:
1729         case OPMODE_SIMPLE:
1730                 msp->watch_stereo = 0;
1731                 msp3400c_setstereo(client, audmode);
1732                 break;
1733         case OPMODE_SIMPLER:
1734                 msp34xxg_set_audmode(client, audmode);
1735                 break;
1736         }
1737 }
1738
1739 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
1740 {
1741         struct msp3400c *msp  = i2c_get_clientdata(client);
1742         __u16           *sarg = arg;
1743         int scart = 0;
1744
1745         switch (cmd) {
1746
1747         case AUDC_SET_INPUT:
1748                 dprintk("msp34xx: AUDC_SET_INPUT(%d)\n",*sarg);
1749                 if (*sarg == msp->input)
1750                         break;
1751                 msp->input = *sarg;
1752                 switch (*sarg) {
1753                 case AUDIO_RADIO:
1754                         /* Hauppauge uses IN2 for the radio */
1755                         msp->mode   = MSP_MODE_FM_RADIO;
1756                         scart       = SCART_IN2;
1757                         break;
1758                 case AUDIO_EXTERN_1:
1759                         /* IN1 is often used for external input ... */
1760                         msp->mode   = MSP_MODE_EXTERN;
1761                         scart       = SCART_IN1;
1762                         break;
1763                 case AUDIO_EXTERN_2:
1764                         /* ... sometimes it is IN2 through ;) */
1765                         msp->mode   = MSP_MODE_EXTERN;
1766                         scart       = SCART_IN2;
1767                         break;
1768                 case AUDIO_TUNER:
1769                         msp->mode   = -1;
1770                         break;
1771                 default:
1772                         if (*sarg & AUDIO_MUTE)
1773                                 msp3400c_set_scart(client,SCART_MUTE,0);
1774                         break;
1775                 }
1776                 if (scart) {
1777                         msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
1778                         msp->audmode = V4L2_TUNER_MODE_STEREO;
1779                         msp3400c_set_scart(client,scart,0);
1780                         msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900);
1781                         if (msp->opmode != OPMODE_SIMPLER)
1782                                 msp3400c_setstereo(client, msp->audmode);
1783                 }
1784                 msp_wake_thread(client);
1785                 break;
1786
1787         case AUDC_SET_RADIO:
1788                 dprintk("msp34xx: AUDC_SET_RADIO\n");
1789                 msp->norm = VIDEO_MODE_RADIO;
1790                 dprintk("msp34xx: switching to radio mode\n");
1791                 if (IS_MSP34XX_G(msp)) {
1792                         msp34xxg_reset(client);
1793                         break;
1794                 }
1795                 msp->watch_stereo = 0;
1796                 switch (msp->opmode) {
1797                 case OPMODE_MANUAL:
1798                         /* set msp3400 to FM radio mode */
1799                         msp3400c_setmode(client,MSP_MODE_FM_RADIO);
1800                         msp3400c_setcarrier(client, MSP_CARRIER(10.7),
1801                                             MSP_CARRIER(10.7));
1802                         msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
1803                         break;
1804                 case OPMODE_SIMPLE:
1805                 case OPMODE_SIMPLER:
1806                         /* the thread will do for us */
1807                         msp_wake_thread(client);
1808                         break;
1809                 }
1810                 break;
1811                 /* work-in-progress:  hook to control the DFP registers */
1812         case MSP_SET_DFPREG:
1813         {
1814                 struct msp_dfpreg *r = arg;
1815                 int i;
1816
1817                 if (r->reg < 0 || r->reg >= DFP_COUNT)
1818                         return -EINVAL;
1819                 for (i = 0; i < sizeof(bl_dfp) / sizeof(int); i++)
1820                         if (r->reg == bl_dfp[i])
1821                                 return -EINVAL;
1822                 msp->dfp_regs[r->reg] = r->value;
1823                 msp3400c_write(client, I2C_MSP3400C_DFP, r->reg, r->value);
1824                 return 0;
1825         }
1826         case MSP_GET_DFPREG:
1827         {
1828                 struct msp_dfpreg *r = arg;
1829
1830                 if (r->reg < 0 || r->reg >= DFP_COUNT)
1831                         return -EINVAL;
1832                 r->value = msp3400c_read(client, I2C_MSP3400C_DFP, r->reg);
1833                 return 0;
1834         }
1835
1836         /* --- v4l ioctls --- */
1837         /* take care: bttv does userspace copying, we'll get a
1838            kernel pointer here... */
1839         case VIDIOCGAUDIO:
1840         {
1841                 struct video_audio *va = arg;
1842
1843                 dprintk("msp34xx: VIDIOCGAUDIO\n");
1844                 va->flags |= VIDEO_AUDIO_VOLUME |
1845                         VIDEO_AUDIO_BASS |
1846                         VIDEO_AUDIO_TREBLE |
1847                         VIDEO_AUDIO_MUTABLE;
1848                 if (msp->muted)
1849                         va->flags |= VIDEO_AUDIO_MUTE;
1850
1851                 if (msp->muted)
1852                         va->flags |= VIDEO_AUDIO_MUTE;
1853                 va->volume = MAX(msp->left, msp->right);
1854                 va->balance = (32768 * MIN(msp->left, msp->right)) /
1855                     (va->volume ? va->volume : 1);
1856                 va->balance = (msp->left < msp->right) ?
1857                     (65535 - va->balance) : va->balance;
1858                 if (0 == va->volume)
1859                         va->balance = 32768;
1860                 va->bass = msp->bass;
1861                 va->treble = msp->treble;
1862
1863                 msp_any_detect_stereo(client);
1864                 va->mode = mode_v4l2_to_v4l1(msp->rxsubchans);
1865                 break;
1866         }
1867         case VIDIOCSAUDIO:
1868         {
1869                 struct video_audio *va = arg;
1870
1871                 dprintk("msp34xx: VIDIOCSAUDIO\n");
1872                 msp->muted = (va->flags & VIDEO_AUDIO_MUTE);
1873                 msp->left = (MIN(65536 - va->balance, 32768) *
1874                              va->volume) / 32768;
1875                 msp->right = (MIN(va->balance, 32768) * va->volume) / 32768;
1876                 msp->bass = va->bass;
1877                 msp->treble = va->treble;
1878                 dprintk("msp34xx: VIDIOCSAUDIO setting va->volume to %d\n",
1879                         va->volume);
1880                 dprintk("msp34xx: VIDIOCSAUDIO setting va->balance to %d\n",
1881                         va->balance);
1882                 dprintk("msp34xx: VIDIOCSAUDIO setting va->flags to %d\n",
1883                         va->flags);
1884                 dprintk("msp34xx: VIDIOCSAUDIO setting msp->left to %d\n",
1885                         msp->left);
1886                 dprintk("msp34xx: VIDIOCSAUDIO setting msp->right to %d\n",
1887                         msp->right);
1888                 dprintk("msp34xx: VIDIOCSAUDIO setting msp->bass to %d\n",
1889                         msp->bass);
1890                 dprintk("msp34xx: VIDIOCSAUDIO setting msp->treble to %d\n",
1891                         msp->treble);
1892                 dprintk("msp34xx: VIDIOCSAUDIO setting msp->mode to %d\n",
1893                         msp->mode);
1894                 msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
1895                 msp3400c_setbass(client, msp->bass);
1896                 msp3400c_settreble(client, msp->treble);
1897
1898                 if (va->mode != 0 && msp->norm != VIDEO_MODE_RADIO)
1899                         msp_any_set_audmode(client,mode_v4l1_to_v4l2(va->mode));
1900                 break;
1901         }
1902
1903         case VIDIOCSCHAN:
1904         {
1905                 struct video_channel *vc = arg;
1906
1907                 dprintk("msp34xx: VIDIOCSCHAN (norm=%d)\n",vc->norm);
1908                 msp->norm = vc->norm;
1909                 if (IS_MSP34XX_G(msp)) {
1910                         msp34xxg_reset(client);
1911                         break;
1912                 }
1913                 msp_wake_thread(client);
1914                 break;
1915         }
1916
1917         case VIDIOCSFREQ:
1918         case VIDIOC_S_FREQUENCY:
1919         {
1920                 /* new channel -- kick audio carrier scan */
1921                 dprintk("msp34xx: VIDIOCSFREQ\n");
1922                 if (IS_MSP34XX_G(msp)) {
1923                         msp34xxg_reset(client);
1924                         break;
1925                 }
1926                 msp_wake_thread(client);
1927                 break;
1928         }
1929
1930         /* --- v4l2 ioctls --- */
1931         case VIDIOC_S_STD:
1932         {
1933                 v4l2_std_id *id = arg;
1934
1935                 /*FIXME: use V4L2 mode flags on msp3400 instead of V4L1*/
1936                 if (*id & V4L2_STD_PAL) {
1937                         msp->norm=VIDEO_MODE_PAL;
1938                 } else if (*id & V4L2_STD_SECAM) {
1939                         msp->norm=VIDEO_MODE_SECAM;
1940                 } else {
1941                         msp->norm=VIDEO_MODE_NTSC;
1942                 }
1943
1944                 msp_wake_thread(client);
1945                 return 0;
1946         }
1947
1948         case VIDIOC_G_AUDIO:
1949         {
1950                 struct v4l2_audio *a = arg;
1951
1952                 memset(a,0,sizeof(*a));
1953
1954                 switch (a->index) {
1955                 case AUDIO_RADIO:
1956                         strcpy(a->name,"Radio");
1957                         break;
1958                 case AUDIO_EXTERN_1:
1959                         strcpy(a->name,"Extern 1");
1960                         break;
1961                 case AUDIO_EXTERN_2:
1962                         strcpy(a->name,"Extern 2");
1963                         break;
1964                 case AUDIO_TUNER:
1965                         strcpy(a->name,"Television");
1966                         break;
1967                 default:
1968                         return -EINVAL;
1969                 }
1970
1971                 msp_any_detect_stereo(client);
1972                 if (msp->audmode == V4L2_TUNER_MODE_STEREO) {
1973                         a->capability=V4L2_AUDCAP_STEREO;
1974                 }
1975
1976                 break;
1977         }
1978         case VIDIOC_S_AUDIO:
1979         {
1980                 struct v4l2_audio *sarg = arg;
1981
1982                 switch (sarg->index) {
1983                 case AUDIO_RADIO:
1984                         /* Hauppauge uses IN2 for the radio */
1985                         msp->mode   = MSP_MODE_FM_RADIO;
1986                         scart       = SCART_IN2;
1987                         break;
1988                 case AUDIO_EXTERN_1:
1989                         /* IN1 is often used for external input ... */
1990                         msp->mode   = MSP_MODE_EXTERN;
1991                         scart       = SCART_IN1;
1992                         break;
1993                 case AUDIO_EXTERN_2:
1994                         /* ... sometimes it is IN2 through ;) */
1995                         msp->mode   = MSP_MODE_EXTERN;
1996                         scart       = SCART_IN2;
1997                         break;
1998                 case AUDIO_TUNER:
1999                         msp->mode   = -1;
2000                         break;
2001                 }
2002                 if (scart) {
2003                         msp->rxsubchans = V4L2_TUNER_SUB_STEREO;
2004                         msp->audmode = V4L2_TUNER_MODE_STEREO;
2005                         msp3400c_set_scart(client,scart,0);
2006                         msp3400c_write(client,I2C_MSP3400C_DFP,0x000d,0x1900);
2007                 }
2008                 if (sarg->capability==V4L2_AUDCAP_STEREO) {
2009                         msp->audmode = V4L2_TUNER_MODE_STEREO;
2010                 } else {
2011                         msp->audmode &= ~V4L2_TUNER_MODE_STEREO;
2012                 }
2013                 msp_any_set_audmode(client, msp->audmode);
2014                 msp_wake_thread(client);
2015                 break;
2016         }
2017         case VIDIOC_G_TUNER:
2018         {
2019                 struct v4l2_tuner *vt = arg;
2020
2021                 msp_any_detect_stereo(client);
2022                 vt->audmode    = msp->audmode;
2023                 vt->rxsubchans = msp->rxsubchans;
2024                 vt->capability = V4L2_TUNER_CAP_STEREO |
2025                         V4L2_TUNER_CAP_LANG1|
2026                         V4L2_TUNER_CAP_LANG2;
2027                 break;
2028         }
2029         case VIDIOC_S_TUNER:
2030         {
2031                 struct v4l2_tuner *vt=(struct v4l2_tuner *)arg;
2032
2033                 /* only set audmode */
2034                 if (vt->audmode != -1 && vt->audmode != 0)
2035                         msp_any_set_audmode(client, vt->audmode);
2036                 break;
2037         }
2038
2039         /* msp34xx specific */
2040         case MSP_SET_MATRIX:
2041         {
2042                 struct msp_matrix *mspm = arg;
2043
2044                 dprintk("msp34xx: MSP_SET_MATRIX\n");
2045                 msp3400c_set_scart(client, mspm->input, mspm->output);
2046                 break;
2047         }
2048
2049         default:
2050                 /* nothing */
2051                 break;
2052         }
2053         return 0;
2054 }
2055
2056 static int msp_suspend(struct device * dev, pm_message_t state)
2057 {
2058         struct i2c_client *c = container_of(dev, struct i2c_client, dev);
2059
2060         dprintk("msp34xx: suspend\n");
2061         msp3400c_reset(c);
2062         return 0;
2063 }
2064
2065 static int msp_resume(struct device * dev)
2066 {
2067         struct i2c_client *c = container_of(dev, struct i2c_client, dev);
2068
2069         dprintk("msp34xx: resume\n");
2070         msp_wake_thread(c);
2071         return 0;
2072 }
2073
2074 /* ----------------------------------------------------------------------- */
2075
2076 static int __init msp3400_init_module(void)
2077 {
2078         return i2c_add_driver(&driver);
2079 }
2080
2081 static void __exit msp3400_cleanup_module(void)
2082 {
2083         i2c_del_driver(&driver);
2084 }
2085
2086 module_init(msp3400_init_module);
2087 module_exit(msp3400_cleanup_module);
2088
2089 /*
2090  * Overrides for Emacs so that we follow Linus's tabbing style.
2091  * ---------------------------------------------------------------------------
2092  * Local variables:
2093  * c-basic-offset: 8
2094  * End:
2095  */