The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/bktr/msp34xx.c

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    1 /*-
    2  * Copyright (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  */
   28 
   29 /*
   30  * programming the msp34* sound processor family
   31  *
   32  * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
   33  *
   34  * what works and what doesn't:
   35  *
   36  *  AM-Mono
   37  *      Support for Hauppauge cards added (decoding handled by tuner) added by
   38  *      Frederic Crozat <fcrozat@mail.dotcom.fr>
   39  *
   40  *  FM-Mono
   41  *      should work. The stereo modes are backward compatible to FM-mono,
   42  *      therefore FM-Mono should be allways available.
   43  *
   44  *  FM-Stereo (B/G, used in germany)
   45  *      should work, with autodetect
   46  *
   47  *  FM-Stereo (satellite)
   48  *      should work, no autodetect (i.e. default is mono, but you can
   49  *      switch to stereo -- untested)
   50  *
   51  *  NICAM (B/G, L , used in UK, Scandinavia, Spain and France)
   52  *      should work, with autodetect. Support for NICAM was added by
   53  *      Pekka Pietikainen <pp@netppl.fi>
   54  *
   55  *
   56  * TODO:
   57  *   - better SAT support
   58  *
   59  *
   60  * 980623  Thomas Sailer (sailer@ife.ee.ethz.ch)
   61  *         using soundcore instead of OSS
   62  *
   63  *
   64  * The FreeBSD modifications by Alexander Langer <alex@FreeBSD.org>
   65  * are in the public domain.  Please contact me (Alex) and not Gerd for
   66  * any problems you encounter under FreeBSD.
   67  * 
   68  * FreeBSD TODO: 
   69  * - mutex handling (currently not mp-safe)
   70  * - the various options here as loader tunables or compile time or whatever
   71  * - how does the new dolby flag work with the current dpl_* stuff?
   72  *   Maybe it's just enough to set the dolby flag to 1 and it works.
   73  *   As I don't have a dolby card myself, I can't test it, though.
   74  */
   75 
   76 #include "opt_bktr.h"                   /* Include any kernel config options */
   77 #ifdef BKTR_NEW_MSP34XX_DRIVER          /* file only needed for new driver */
   78 
   79 #include <sys/param.h>
   80 #include <sys/systm.h>
   81 #include <sys/kernel.h>
   82 #include <sys/vnode.h>
   83 
   84 #include <sys/unistd.h>
   85 #include <sys/kthread.h>
   86 #include <sys/malloc.h>
   87 
   88 #ifdef BKTR_USE_FREEBSD_SMBUS
   89 #include <sys/bus.h>                    /* required by bktr_reg.h */
   90 #endif
   91 
   92 #include <machine/bus.h>                /* required by bktr_reg.h */
   93 
   94 #include <dev/bktr/ioctl_meteor.h>
   95 #include <dev/bktr/ioctl_bt848.h>       /* extensions to ioctl_meteor.h */
   96 #include <dev/bktr/bktr_reg.h>
   97 #include <dev/bktr/bktr_tuner.h>
   98 #include <dev/bktr/bktr_audio.h>
   99 #include <dev/bktr/bktr_core.h>
  100 
  101 #define VIDEO_MODE_PAL          0
  102 #define VIDEO_MODE_NTSC         1
  103 #define VIDEO_MODE_SECAM        2
  104 #define VIDEO_MODE_AUTO         3
  105 
  106 #define VIDEO_SOUND_MONO        1
  107 #define VIDEO_SOUND_STEREO      2
  108 #define VIDEO_SOUND_LANG1       4
  109 #define VIDEO_SOUND_LANG2       8
  110 
  111 #define DFP_COUNT 0x41
  112 static const int bl_dfp[] = {
  113         0x00, 0x01, 0x02, 0x03,  0x06, 0x08, 0x09, 0x0a,
  114         0x0b, 0x0d, 0x0e, 0x10
  115 };
  116 
  117 struct msp3400c {
  118         int simple;
  119         int nicam;
  120         int mode;
  121         int norm;
  122         int stereo;
  123         int nicam_on;
  124         int acb;
  125         int main, second;       /* sound carrier */
  126         int input;
  127 
  128         int muted;
  129         int left, right;        /* volume */
  130         int bass, treble;
  131 
  132         /* shadow register set */
  133         int dfp_regs[DFP_COUNT];
  134 
  135         /* thread */
  136         struct proc         *kthread;
  137 
  138         int                  active,restart,rmmod;
  139 
  140         int                  watch_stereo;
  141         int                  halt_thread;
  142 };
  143 
  144 #define VIDEO_MODE_RADIO 16      /* norm magic for radio mode */
  145 
  146 /* ---------------------------------------------------------------------- */
  147 
  148 #define dprintk(...) do {                                               \
  149         if (bootverbose) {                                              \
  150                 printf("%s: ", bktr_name(client));                      \
  151                 printf(__VA_ARGS__);                                    \
  152         }                                                               \
  153 } while (0)
  154 
  155 /* ---------------------------------------------------------------------- */
  156 
  157 #define I2C_MSP3400C       0x80
  158 #define I2C_MSP3400C_DEM   0x10
  159 #define I2C_MSP3400C_DFP   0x12
  160 
  161 /* ----------------------------------------------------------------------- */
  162 /* functions for talking to the MSP3400C Sound processor                   */
  163 
  164 static int msp3400c_reset(bktr_ptr_t client)
  165 {
  166         /* use our own which handles config(8) options */
  167         msp_dpl_reset(client, client->msp_addr);
  168 
  169         return 0;
  170 }
  171 
  172 static int
  173 msp3400c_read(bktr_ptr_t client, int dev, int addr)
  174 {
  175         /* use our own */
  176         return(msp_dpl_read(client, client->msp_addr, dev, addr));
  177 }
  178 
  179 static int
  180 msp3400c_write(bktr_ptr_t client, int dev, int addr, int val)
  181 {
  182         /* use our own */
  183         msp_dpl_write(client, client->msp_addr, dev, addr, val);
  184 
  185         return(0);
  186 }
  187 
  188 /* ------------------------------------------------------------------------ */
  189 
  190 /* This macro is allowed for *constants* only, gcc must calculate it
  191    at compile time.  Remember -- no floats in kernel mode */
  192 #define MSP_CARRIER(freq) ((int)((float)(freq/18.432)*(1<<24)))
  193 
  194 #define MSP_MODE_AM_DETECT   0
  195 #define MSP_MODE_FM_RADIO    2
  196 #define MSP_MODE_FM_TERRA    3
  197 #define MSP_MODE_FM_SAT      4
  198 #define MSP_MODE_FM_NICAM1   5
  199 #define MSP_MODE_FM_NICAM2   6
  200 #define MSP_MODE_AM_NICAM    7
  201 #define MSP_MODE_BTSC        8
  202 #define MSP_MODE_EXTERN      9
  203 
  204 static struct MSP_INIT_DATA_DEM {
  205         int fir1[6];
  206         int fir2[6];
  207         int cdo1;
  208         int cdo2;
  209         int ad_cv;
  210         int mode_reg;
  211         int dfp_src;
  212         int dfp_matrix;
  213 } msp_init_data[] = {
  214         /* AM (for carrier detect / msp3400) */
  215         { { 75, 19, 36, 35, 39, 40 }, { 75, 19, 36, 35, 39, 40 },
  216           MSP_CARRIER(5.5), MSP_CARRIER(5.5),
  217           0x00d0, 0x0500,   0x0020, 0x3000},
  218 
  219         /* AM (for carrier detect / msp3410) */
  220         { { -1, -1, -8, 2, 59, 126 }, { -1, -1, -8, 2, 59, 126 },
  221           MSP_CARRIER(5.5), MSP_CARRIER(5.5),
  222           0x00d0, 0x0100,   0x0020, 0x3000},
  223 
  224         /* FM Radio */
  225         { { -8, -8, 4, 6, 78, 107 }, { -8, -8, 4, 6, 78, 107 },
  226           MSP_CARRIER(10.7), MSP_CARRIER(10.7),
  227           0x00d0, 0x0480, 0x0020, 0x3000 },
  228 
  229         /* Terrestial FM-mono + FM-stereo */
  230         { {  3, 18, 27, 48, 66, 72 }, {  3, 18, 27, 48, 66, 72 },
  231           MSP_CARRIER(5.5), MSP_CARRIER(5.5),
  232           0x00d0, 0x0480,   0x0030, 0x3000},
  233 
  234         /* Sat FM-mono */
  235         { {  1,  9, 14, 24, 33, 37 }, {  3, 18, 27, 48, 66, 72 },
  236           MSP_CARRIER(6.5), MSP_CARRIER(6.5),
  237           0x00c6, 0x0480,   0x0000, 0x3000},
  238 
  239         /* NICAM/FM --  B/G (5.5/5.85), D/K (6.5/5.85) */
  240         { { -2, -8, -10, 10, 50, 86 }, {  3, 18, 27, 48, 66, 72 },
  241           MSP_CARRIER(5.5), MSP_CARRIER(5.5),
  242           0x00d0, 0x0040,   0x0120, 0x3000},
  243 
  244         /* NICAM/FM -- I (6.0/6.552) */
  245         { {  2, 4, -6, -4, 40, 94 }, {  3, 18, 27, 48, 66, 72 },
  246           MSP_CARRIER(6.0), MSP_CARRIER(6.0),
  247           0x00d0, 0x0040,   0x0120, 0x3000},
  248 
  249         /* NICAM/AM -- L (6.5/5.85) */
  250         { {  -2, -8, -10, 10, 50, 86 }, {  -4, -12, -9, 23, 79, 126 },
  251           MSP_CARRIER(6.5), MSP_CARRIER(6.5),
  252           0x00c6, 0x0140,   0x0120, 0x7c03},
  253 };
  254 
  255 struct CARRIER_DETECT {
  256         int   cdo;
  257         char *name;
  258 };
  259 
  260 static struct CARRIER_DETECT carrier_detect_main[] = {
  261         /* main carrier */
  262         { MSP_CARRIER(4.5),        "4.5   NTSC"                   }, 
  263         { MSP_CARRIER(5.5),        "5.5   PAL B/G"                }, 
  264         { MSP_CARRIER(6.0),        "6.0   PAL I"                  },
  265         { MSP_CARRIER(6.5),        "6.5   PAL D/K + SAT + SECAM"  }
  266 };
  267 
  268 static struct CARRIER_DETECT carrier_detect_55[] = {
  269         /* PAL B/G */
  270         { MSP_CARRIER(5.7421875),  "5.742 PAL B/G FM-stereo"     }, 
  271         { MSP_CARRIER(5.85),       "5.85  PAL B/G NICAM"         }
  272 };
  273 
  274 static struct CARRIER_DETECT carrier_detect_65[] = {
  275         /* PAL SAT / SECAM */
  276         { MSP_CARRIER(5.85),       "5.85  PAL D/K + SECAM NICAM" },
  277         { MSP_CARRIER(6.2578125),  "6.25  PAL D/K1 FM-stereo" },
  278         { MSP_CARRIER(6.7421875),  "6.74  PAL D/K2 FM-stereo" },
  279         { MSP_CARRIER(7.02),       "7.02  PAL SAT FM-stereo s/b" },
  280         { MSP_CARRIER(7.20),       "7.20  PAL SAT FM-stereo s"   },
  281         { MSP_CARRIER(7.38),       "7.38  PAL SAT FM-stereo b"   },
  282 };
  283 
  284 #define CARRIER_COUNT(x) (sizeof(x)/sizeof(struct CARRIER_DETECT))
  285 
  286 /* ----------------------------------------------------------------------- */
  287 
  288 #define SCART_MASK    0
  289 #define SCART_IN1     1
  290 #define SCART_IN2     2
  291 #define SCART_IN1_DA  3
  292 #define SCART_IN2_DA  4
  293 #define SCART_IN3     5
  294 #define SCART_IN4     6
  295 #define SCART_MONO    7
  296 #define SCART_MUTE    8
  297 
  298 static int scarts[3][9] = {
  299   /* MASK    IN1     IN2     IN1_DA  IN2_DA  IN3     IN4     MONO    MUTE   */
  300   {  0x0320, 0x0000, 0x0200, -1,     -1,     0x0300, 0x0020, 0x0100, 0x0320 },
  301   {  0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
  302   {  0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
  303 };
  304 
  305 static char *scart_names[] = {
  306   "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
  307 };
  308 
  309 static void
  310 msp3400c_set_scart(bktr_ptr_t client, int in, int out)
  311 {
  312         struct msp3400c *msp = client->msp3400c_info;
  313 
  314         if (-1 == scarts[out][in])
  315                 return;
  316 
  317         dprintk("msp34xx: scart switch: %s => %d\n",scart_names[in],out);
  318         msp->acb &= ~scarts[out][SCART_MASK];
  319         msp->acb |=  scarts[out][in];
  320         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0013, msp->acb);
  321 }
  322 
  323 /* ------------------------------------------------------------------------ */
  324 
  325 static void msp3400c_setcarrier(bktr_ptr_t client, int cdo1, int cdo2)
  326 {
  327         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0093, cdo1 & 0xfff);
  328         msp3400c_write(client,I2C_MSP3400C_DEM, 0x009b, cdo1 >> 12);
  329         msp3400c_write(client,I2C_MSP3400C_DEM, 0x00a3, cdo2 & 0xfff);
  330         msp3400c_write(client,I2C_MSP3400C_DEM, 0x00ab, cdo2 >> 12);
  331         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
  332 }
  333 
  334 static void msp3400c_setvolume(bktr_ptr_t client,
  335                                int muted, int left, int right)
  336 {
  337         int vol = 0,val = 0,balance = 0;
  338 
  339         if (!muted) {
  340                 vol     = (left > right) ? left : right;
  341                 val     = (vol * 0x73 / 65535) << 8;
  342         }
  343         if (vol > 0) {
  344                 balance = ((right-left) * 127) / vol;
  345         }
  346 
  347         dprintk("msp34xx: setvolume: mute=%s %d:%d  v=0x%02x b=0x%02x\n",
  348                 muted ? "on" : "off", left, right, val>>8, balance);
  349         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0000, val); /* loudspeaker */
  350         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0006, val); /* headphones  */
  351         /* scart - on/off only */
  352         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0007, val ? 0x4000 : 0);
  353         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0001, balance << 8);
  354 }
  355 
  356 static void msp3400c_setbass(bktr_ptr_t client, int bass)
  357 {
  358         int val = ((bass-32768) * 0x60 / 65535) << 8;
  359 
  360         dprintk("msp34xx: setbass: %d 0x%02x\n",bass, val>>8);
  361         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0002, val); /* loudspeaker */
  362 }
  363 
  364 static void msp3400c_settreble(bktr_ptr_t client, int treble)
  365 {
  366         int val = ((treble-32768) * 0x60 / 65535) << 8;
  367 
  368         dprintk("msp34xx: settreble: %d 0x%02x\n",treble, val>>8);
  369         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0003, val); /* loudspeaker */
  370 }
  371 
  372 static void msp3400c_setmode(bktr_ptr_t client, int type)
  373 {
  374         struct msp3400c *msp = client->msp3400c_info;
  375         int i;
  376         
  377         dprintk("msp3400: setmode: %d\n",type);
  378         msp->mode   = type;
  379         msp->stereo = VIDEO_SOUND_MONO;
  380 
  381         msp3400c_write(client,I2C_MSP3400C_DEM, 0x00bb,          /* ad_cv */
  382                        msp_init_data[type].ad_cv);
  383     
  384         for (i = 5; i >= 0; i--)                                   /* fir 1 */
  385                 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0001,
  386                                msp_init_data[type].fir1[i]);
  387     
  388         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0004); /* fir 2 */
  389         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0040);
  390         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005, 0x0000);
  391         for (i = 5; i >= 0; i--)
  392                 msp3400c_write(client,I2C_MSP3400C_DEM, 0x0005,
  393                                msp_init_data[type].fir2[i]);
  394     
  395         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0083,     /* MODE_REG */
  396                        msp_init_data[type].mode_reg);
  397     
  398         msp3400c_setcarrier(client, msp_init_data[type].cdo1,
  399                             msp_init_data[type].cdo2);
  400     
  401         msp3400c_write(client,I2C_MSP3400C_DEM, 0x0056, 0); /*LOAD_REG_1/2*/
  402 
  403         if (client->dolby) {
  404                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
  405                                0x0520); /* I2S1 */
  406                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
  407                                0x0620); /* I2S2 */
  408                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
  409                                msp_init_data[type].dfp_src);
  410         } else {
  411                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,
  412                                msp_init_data[type].dfp_src);
  413                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,
  414                                msp_init_data[type].dfp_src);
  415                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,
  416                                msp_init_data[type].dfp_src);
  417         }
  418         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,
  419                        msp_init_data[type].dfp_src);
  420         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e,
  421                        msp_init_data[type].dfp_matrix);
  422 
  423         if (msp->nicam) {
  424                 /* nicam prescale */
  425                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0010, 0x5a00); /* was: 0x3000 */
  426         }
  427 }
  428 
  429 /* turn on/off nicam + stereo */
  430 static void msp3400c_setstereo(bktr_ptr_t client, int mode)
  431 {
  432         static char *strmode[] = { "", "mono", "stereo", "3",
  433                                    "lang1", "5", "6", "7", "lang2" };
  434         struct msp3400c *msp = client->msp3400c_info;
  435         int nicam=0; /* channel source: FM/AM or nicam */
  436         int src=0;
  437 
  438         /* switch demodulator */
  439         switch (msp->mode) {
  440         case MSP_MODE_FM_TERRA:
  441                 dprintk("msp3400: FM setstereo: %s\n",strmode[mode]);
  442                 msp3400c_setcarrier(client,msp->second,msp->main);
  443                 switch (mode) {
  444                 case VIDEO_SOUND_STEREO:
  445                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3001);
  446                         break;
  447                 case VIDEO_SOUND_MONO:
  448                 case VIDEO_SOUND_LANG1:
  449                 case VIDEO_SOUND_LANG2:
  450                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x000e, 0x3000);
  451                         break;
  452                 }
  453                 break;
  454         case MSP_MODE_FM_SAT:
  455                 dprintk("msp3400: SAT setstereo: %s\n",strmode[mode]);
  456                 switch (mode) {
  457                 case VIDEO_SOUND_MONO:
  458                         msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
  459                         break;
  460                 case VIDEO_SOUND_STEREO:
  461                         msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
  462                         break;
  463                 case VIDEO_SOUND_LANG1:
  464                         msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
  465                         break;
  466                 case VIDEO_SOUND_LANG2:
  467                         msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
  468                         break;
  469                 }
  470                 break;
  471         case MSP_MODE_FM_NICAM1:
  472         case MSP_MODE_FM_NICAM2:
  473         case MSP_MODE_AM_NICAM:
  474                 dprintk("msp3400: NICAM setstereo: %s\n",strmode[mode]);
  475                 msp3400c_setcarrier(client,msp->second,msp->main);
  476                 if (msp->nicam_on)
  477                         nicam=0x0100;
  478                 break;
  479         case MSP_MODE_BTSC:
  480                 dprintk("msp3400: BTSC setstereo: %s\n",strmode[mode]);
  481                 nicam=0x0300;
  482                 break;
  483         case MSP_MODE_EXTERN:
  484                 dprintk("msp3400: extern setstereo: %s\n",strmode[mode]);
  485                 nicam = 0x0200;
  486                 break;
  487         case MSP_MODE_FM_RADIO:
  488                 dprintk("msp3400: FM-Radio setstereo: %s\n",strmode[mode]);
  489                 break;
  490         default:
  491                 dprintk("msp3400: mono setstereo\n");
  492                 return;
  493         }
  494 
  495         /* switch audio */
  496         switch (mode) {
  497         case VIDEO_SOUND_STEREO:
  498                 src = 0x0020 | nicam;
  499 #if 0 
  500                 /* spatial effect */
  501                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0005,0x4000);
  502 #endif
  503                 break;
  504         case VIDEO_SOUND_MONO:
  505                 if (msp->mode == MSP_MODE_AM_NICAM) {
  506                         dprintk("msp3400: switching to AM mono\n");
  507                         /* AM mono decoding is handled by tuner, not MSP chip */
  508                         /* SCART switching control register */
  509                         msp3400c_set_scart(client,SCART_MONO,0);
  510                         src = 0x0200;
  511                         break;
  512                 }
  513         case VIDEO_SOUND_LANG1:
  514                 src = 0x0000 | nicam;
  515                 break;
  516         case VIDEO_SOUND_LANG2:
  517                 src = 0x0010 | nicam;
  518                 break;
  519         }
  520         dprintk("msp3400: setstereo final source/matrix = 0x%x\n", src);
  521 
  522         if (client->dolby) {
  523                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,0x0520);
  524                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,0x0620);
  525                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
  526                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
  527         } else {
  528                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0008,src);
  529                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x0009,src);
  530                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000a,src);
  531                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000b,src);
  532         }
  533 }
  534 
  535 static void
  536 msp3400c_print_mode(struct msp3400c *msp)
  537 {
  538         if (msp->main == msp->second) {
  539                 printf("bktr: msp3400: mono sound carrier: %d.%03d MHz\n",
  540                        msp->main/910000,(msp->main/910)%1000);
  541         } else {
  542                 printf("bktr: msp3400: main sound carrier: %d.%03d MHz\n",
  543                        msp->main/910000,(msp->main/910)%1000);
  544         }
  545         if (msp->mode == MSP_MODE_FM_NICAM1 ||
  546             msp->mode == MSP_MODE_FM_NICAM2)
  547                 printf("bktr: msp3400: NICAM/FM carrier   : %d.%03d MHz\n",
  548                        msp->second/910000,(msp->second/910)%1000);
  549         if (msp->mode == MSP_MODE_AM_NICAM)
  550                 printf("bktr: msp3400: NICAM/AM carrier   : %d.%03d MHz\n",
  551                        msp->second/910000,(msp->second/910)%1000);
  552         if (msp->mode == MSP_MODE_FM_TERRA &&
  553             msp->main != msp->second) {
  554                 printf("bktr: msp3400: FM-stereo carrier : %d.%03d MHz\n",
  555                        msp->second/910000,(msp->second/910)%1000);
  556         }
  557 }
  558 
  559 static void
  560 msp3400c_restore_dfp(bktr_ptr_t client)
  561 {
  562         struct msp3400c *msp = (struct msp3400c*)client->msp3400c_info;
  563         int i;
  564 
  565         for (i = 0; i < DFP_COUNT; i++) {
  566                 if (-1 == msp->dfp_regs[i])
  567                         continue;
  568                 msp3400c_write(client,I2C_MSP3400C_DFP, i, msp->dfp_regs[i]);
  569         }
  570 }
  571 
  572 /* ----------------------------------------------------------------------- */
  573 
  574 struct REGISTER_DUMP {
  575         int   addr;
  576         char *name;
  577 };
  578 
  579 struct REGISTER_DUMP d1[] = {
  580         { 0x007e, "autodetect" },
  581         { 0x0023, "C_AD_BITS " },
  582         { 0x0038, "ADD_BITS  " },
  583         { 0x003e, "CIB_BITS  " },
  584         { 0x0057, "ERROR_RATE" },
  585 };
  586 
  587 static int
  588 autodetect_stereo(bktr_ptr_t client)
  589 {
  590         struct msp3400c *msp = (struct msp3400c*)client->msp3400c_info;
  591         int val;
  592         int newstereo = msp->stereo;
  593         int newnicam  = msp->nicam_on;
  594         int update = 0;
  595 
  596         switch (msp->mode) {
  597         case MSP_MODE_FM_TERRA:
  598                 val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x18);
  599                 if (val > 32767)
  600                         val -= 65536;
  601                 dprintk("msp34xx: stereo detect register: %d\n",val);
  602                 
  603                 if (val > 4096) {
  604                         newstereo = VIDEO_SOUND_STEREO | VIDEO_SOUND_MONO;
  605                 } else if (val < -4096) {
  606                         newstereo = VIDEO_SOUND_LANG1 | VIDEO_SOUND_LANG2;
  607                 } else {
  608                         newstereo = VIDEO_SOUND_MONO;
  609                 }
  610                 newnicam = 0;
  611                 break;
  612         case MSP_MODE_FM_NICAM1:
  613         case MSP_MODE_FM_NICAM2:
  614         case MSP_MODE_AM_NICAM:
  615                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x23);
  616                 dprintk("msp34xx: nicam sync=%d, mode=%d\n",val & 1, (val & 0x1e) >> 1);
  617 
  618                 if (val & 1) {
  619                         /* nicam synced */
  620                         switch ((val & 0x1e) >> 1)  {
  621                         case 0:
  622                         case 8:
  623                                 newstereo = VIDEO_SOUND_STEREO;
  624                                 break;
  625                         case 1:
  626                         case 9:
  627                                 newstereo = VIDEO_SOUND_MONO
  628                                         | VIDEO_SOUND_LANG1;
  629                                 break;
  630                         case 2:
  631                         case 10:
  632                                 newstereo = VIDEO_SOUND_MONO
  633                                         | VIDEO_SOUND_LANG1
  634                                         | VIDEO_SOUND_LANG2;
  635                                 break;
  636                         default:
  637                                 newstereo = VIDEO_SOUND_MONO;
  638                                 break;
  639                         }
  640                         newnicam=1;
  641                 } else {
  642                         newnicam = 0;
  643                         newstereo = VIDEO_SOUND_MONO;
  644                 }
  645                 break;
  646         case MSP_MODE_BTSC:
  647                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x200);
  648                 dprintk("msp3410: status=0x%x (pri=%s, sec=%s, %s%s%s)\n",
  649                         val,
  650                         (val & 0x0002) ? "no"     : "yes",
  651                         (val & 0x0004) ? "no"     : "yes",
  652                         (val & 0x0040) ? "stereo" : "mono",
  653                         (val & 0x0080) ? ", nicam 2nd mono" : "",
  654                         (val & 0x0100) ? ", bilingual/SAP"  : "");
  655                 newstereo = VIDEO_SOUND_MONO;
  656                 if (val & 0x0040) newstereo |= VIDEO_SOUND_STEREO;
  657                 if (val & 0x0100) newstereo |= VIDEO_SOUND_LANG1;
  658                 break;
  659         }
  660         if (newstereo != msp->stereo) {
  661                 update = 1;
  662                 dprintk("msp34xx: watch: stereo %d => %d\n",
  663                         msp->stereo,newstereo);
  664                 msp->stereo   = newstereo;
  665         }
  666         if (newnicam != msp->nicam_on) {
  667                 update = 1;
  668                 dprintk("msp34xx: watch: nicam %d => %d\n",
  669                         msp->nicam_on,newnicam);
  670                 msp->nicam_on = newnicam;
  671         }
  672         return update;
  673 }
  674 
  675 /*
  676  * A kernel thread for msp3400 control -- we don't want to block the
  677  * in the ioctl while doing the sound carrier & stereo detect
  678  */
  679 
  680 /* stereo/multilang monitoring */
  681 static void watch_stereo(bktr_ptr_t client)
  682 {
  683         struct msp3400c *msp = (struct msp3400c*)client->msp3400c_info;
  684 
  685         if (autodetect_stereo(client)) {
  686                 if (msp->stereo & VIDEO_SOUND_STEREO)
  687                         msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
  688                 else if (msp->stereo & VIDEO_SOUND_LANG1)
  689                         msp3400c_setstereo(client,VIDEO_SOUND_LANG1);
  690                 else
  691                         msp3400c_setstereo(client,VIDEO_SOUND_MONO);
  692         }
  693         if (client->stereo_once)
  694                 msp->watch_stereo = 0;
  695 
  696 }
  697 
  698 static void msp3400c_thread(void *data)
  699 {
  700         bktr_ptr_t client = data;
  701         struct msp3400c *msp = (struct msp3400c*)client->msp3400c_info;
  702         
  703         struct CARRIER_DETECT *cd;
  704         int count, max1,max2,val1,val2, val,this;
  705         
  706         dprintk("msp3400: thread started\n");
  707         
  708         mtx_lock(&Giant);
  709         for (;;) {
  710                 if (msp->rmmod)
  711                         goto done;
  712                 tsleep(msp->kthread, PRIBIO, "idle", 0);
  713                 if (msp->rmmod)
  714                         goto done;
  715                 if (msp->halt_thread) {
  716                         msp->watch_stereo = 0;
  717                         msp->halt_thread = 0;
  718                         continue;
  719                 }
  720                 
  721                 if (VIDEO_MODE_RADIO == msp->norm ||
  722                     MSP_MODE_EXTERN  == msp->mode)
  723                         continue;  /* nothing to do */
  724                 
  725                 msp->active = 1;
  726                 
  727                 if (msp->watch_stereo) {
  728                         watch_stereo(client);
  729                         msp->active = 0;
  730                         continue;
  731                 }
  732 
  733                 /* some time for the tuner to sync */
  734                 tsleep(msp->kthread, PRIBIO, "tuner sync", hz/2);
  735                 
  736         restart:
  737                 if (VIDEO_MODE_RADIO == msp->norm ||
  738                     MSP_MODE_EXTERN  == msp->mode)
  739                         continue;  /* nothing to do */
  740                 msp->restart = 0;
  741                 msp3400c_setvolume(client, msp->muted, 0, 0);
  742                 msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ );
  743                 val1 = val2 = 0;
  744                 max1 = max2 = -1;
  745                 msp->watch_stereo = 0;
  746 
  747                 /* carrier detect pass #1 -- main carrier */
  748                 cd = carrier_detect_main; count = CARRIER_COUNT(carrier_detect_main);
  749 
  750                 if (client->amsound && (msp->norm == VIDEO_MODE_SECAM)) {
  751                         /* autodetect doesn't work well with AM ... */
  752                         max1 = 3;
  753                         count = 0;
  754                         dprintk("msp3400: AM sound override\n");
  755                 }
  756                 
  757                 for (this = 0; this < count; this++) {
  758                         msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
  759 
  760                         tsleep(msp->kthread, PRIBIO, "carrier detect", hz/100);
  761                         
  762                         if (msp->restart)
  763                                 msp->restart = 0;
  764 
  765                         val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
  766                         if (val > 32767)
  767                                 val -= 65536;
  768                         if (val1 < val)
  769                                 val1 = val, max1 = this;
  770                         dprintk("msp3400: carrier1 val: %5d / %s\n", val,cd[this].name);
  771                 }
  772         
  773                 /* carrier detect pass #2 -- second (stereo) carrier */
  774                 switch (max1) {
  775                 case 1: /* 5.5 */
  776                         cd = carrier_detect_55; count = CARRIER_COUNT(carrier_detect_55);
  777                         break;
  778                 case 3: /* 6.5 */
  779                         cd = carrier_detect_65; count = CARRIER_COUNT(carrier_detect_65);
  780                         break;
  781                 case 0: /* 4.5 */
  782                 case 2: /* 6.0 */
  783                 default:
  784                         cd = NULL; count = 0;
  785                         break;
  786                 }
  787                 
  788                 if (client->amsound && (msp->norm == VIDEO_MODE_SECAM)) {
  789                         /* autodetect doesn't work well with AM ... */
  790                         cd = NULL; count = 0; max2 = 0;
  791                 }
  792                 for (this = 0; this < count; this++) {
  793                         msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo);
  794 
  795                         tsleep(msp->kthread, PRIBIO, "carrier detection", hz/100);
  796                         if (msp->restart)
  797                                 goto restart;
  798 
  799                         val = msp3400c_read(client, I2C_MSP3400C_DFP, 0x1b);
  800                         if (val > 32767)
  801                                 val -= 65536;
  802                         if (val2 < val)
  803                                 val2 = val, max2 = this;
  804                         dprintk("msp3400: carrier2 val: %5d / %s\n", val,cd[this].name);
  805                 }
  806 
  807                 /* programm the msp3400 according to the results */
  808                 msp->main   = carrier_detect_main[max1].cdo;
  809                 switch (max1) {
  810                 case 1: /* 5.5 */
  811                         if (max2 == 0) {
  812                                 /* B/G FM-stereo */
  813                                 msp->second = carrier_detect_55[max2].cdo;
  814                                 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
  815                                 msp->nicam_on = 0;
  816                                 /* XXX why mono? this probably can do stereo... - Alex*/
  817                                 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
  818                                 msp->watch_stereo = 1;
  819                         } else if (max2 == 1 && msp->nicam) {
  820                                 /* B/G NICAM */
  821                                 msp->second = carrier_detect_55[max2].cdo;
  822                                 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
  823                                 msp->nicam_on = 1;
  824                                 msp3400c_setcarrier(client, msp->second, msp->main);
  825                                 msp->watch_stereo = 1;
  826                         } else {
  827                                 goto no_second;
  828                         }
  829                         break;
  830                 case 2: /* 6.0 */
  831                         /* PAL I NICAM */
  832                         msp->second = MSP_CARRIER(6.552);
  833                         msp3400c_setmode(client, MSP_MODE_FM_NICAM2);
  834                         msp->nicam_on = 1;
  835                         msp3400c_setcarrier(client, msp->second, msp->main);
  836                         msp->watch_stereo = 1;
  837                         break;
  838                 case 3: /* 6.5 */
  839                         if (max2 == 1 || max2 == 2) {
  840                                 /* D/K FM-stereo */
  841                                 msp->second = carrier_detect_65[max2].cdo;
  842                                 msp3400c_setmode(client, MSP_MODE_FM_TERRA);
  843                                 msp->nicam_on = 0;
  844                                 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
  845                                 msp->watch_stereo = 1;
  846                         } else if (max2 == 0 &&
  847                                    msp->norm == VIDEO_MODE_SECAM) {
  848                                 /* L NICAM or AM-mono */
  849                                 msp->second = carrier_detect_65[max2].cdo;
  850                                 msp3400c_setmode(client, MSP_MODE_AM_NICAM);
  851                                 msp->nicam_on = 0;
  852                                 msp3400c_setstereo(client, VIDEO_SOUND_MONO);
  853                                 msp3400c_setcarrier(client, msp->second, msp->main);
  854                                 /* volume prescale for SCART (AM mono input) */
  855                                 msp3400c_write(client,I2C_MSP3400C_DFP, 0x000d, 0x1900);
  856                                 msp->watch_stereo = 1;
  857                         } else if (max2 == 0 && msp->nicam) {
  858                                 /* D/K NICAM */
  859                                 msp->second = carrier_detect_65[max2].cdo;
  860                                 msp3400c_setmode(client, MSP_MODE_FM_NICAM1);
  861                                 msp->nicam_on = 1;
  862                                 msp3400c_setcarrier(client, msp->second, msp->main);
  863                                 msp->watch_stereo = 1;
  864                         } else {
  865                                 goto no_second;
  866                         }
  867                         break;
  868                 case 0: /* 4.5 */
  869                 default:
  870                 no_second:
  871                         msp->second = carrier_detect_main[max1].cdo;
  872                         msp3400c_setmode(client, MSP_MODE_FM_TERRA);
  873                         msp->nicam_on = 0;
  874                         msp3400c_setcarrier(client, msp->second, msp->main);
  875                         msp->stereo = VIDEO_SOUND_MONO;
  876                         msp3400c_setstereo(client, VIDEO_SOUND_MONO);
  877                         break;
  878                 }
  879 
  880                 if (msp->watch_stereo)
  881                         watch_stereo(client);
  882 
  883                 /* unmute + restore dfp registers */
  884                 msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
  885                 msp3400c_restore_dfp(client);
  886 
  887                 if (bootverbose)
  888                         msp3400c_print_mode(msp);
  889                 
  890                 msp->active = 0;
  891         }
  892 
  893 done:
  894         dprintk("msp3400: thread: exit\n");
  895         msp->active = 0;
  896 
  897         msp->kthread = NULL;
  898         wakeup(&msp->kthread);
  899         mtx_unlock(&Giant);
  900 
  901         kproc_exit(0);
  902 }
  903 
  904 /* ----------------------------------------------------------------------- */
  905 /* this one uses the automatic sound standard detection of newer           */
  906 /* msp34xx chip versions                                                   */
  907 
  908 static struct MODES {
  909         int retval;
  910         int main, second;
  911         char *name;
  912 } modelist[] = {
  913         { 0x0000, 0, 0, "ERROR" },
  914         { 0x0001, 0, 0, "autodetect start" },
  915         { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72  M Dual FM-Stereo" },
  916         { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74  B/G Dual FM-Stereo" },
  917         { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25  D/K1 Dual FM-Stereo" },
  918         { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74  D/K2 Dual FM-Stereo" },
  919         { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  D/K FM-Mono (HDEV3)" },
  920         { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85  B/G NICAM FM" },
  921         { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  L NICAM AM" },
  922         { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55  I NICAM FM" },
  923         { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM" },
  924         { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85  D/K NICAM FM (HDEV2)" },
  925         { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Stereo" },
  926         { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M BTSC-Mono + SAP" },
  927         { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5  M EIA-J Japan Stereo" },
  928         { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7  FM-Stereo Radio" },
  929         { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5  SAT-Mono" },
  930         { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20  SAT-Stereo" },
  931         { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2  SAT ADR" },
  932         {     -1, 0, 0, NULL }, /* EOF */
  933 };
  934  
  935 static void msp3410d_thread(void *data)
  936 {
  937         bktr_ptr_t client = data;
  938         struct msp3400c *msp = (struct msp3400c*)client->msp3400c_info;
  939         int mode,val,i,std;
  940         int timo = 0;
  941     
  942         dprintk("msp3410: thread started\n");
  943                 
  944         mtx_lock(&Giant);
  945         for (;;) {
  946                 if (msp->rmmod)
  947                         goto done;
  948                 if (!msp->watch_stereo)
  949                         timo = 0;
  950                 else
  951                         timo = 10*hz;
  952                 tsleep(msp->kthread, PRIBIO, "idle", timo);
  953                 if (msp->rmmod)
  954                         goto done;
  955                 if (msp->halt_thread) {
  956                         msp->watch_stereo = 0;
  957                         msp->halt_thread = 0;
  958                         dprintk("msp3410: thread halted\n");
  959                         continue;
  960                 }
  961                 
  962                 if (msp->mode == MSP_MODE_EXTERN)
  963                         continue;
  964                 
  965                 msp->active = 1;
  966                 
  967                 if (msp->watch_stereo) {
  968                         watch_stereo(client);
  969                         msp->active = 0;
  970                         continue;
  971                 }
  972         
  973                 /* some time for the tuner to sync */
  974                 tsleep(msp->kthread, PRIBIO, "tuner sync", hz/2);
  975 
  976         restart:
  977                 if (msp->mode == MSP_MODE_EXTERN)
  978                         continue;
  979                 msp->restart = 0;
  980                 msp->watch_stereo = 0;
  981 
  982                 /* put into sane state (and mute) */
  983                 msp3400c_reset(client);
  984 
  985                 /* start autodetect */
  986                 switch (msp->norm) {
  987                 case VIDEO_MODE_PAL:
  988                         mode = 0x1003;
  989                         std  = 1;
  990                         break;
  991                 case VIDEO_MODE_NTSC:  /* BTSC */
  992                         mode = 0x2003;
  993                         std  = 0x0020;
  994                         break;
  995                 case VIDEO_MODE_SECAM: 
  996                         mode = 0x0003;
  997                         std  = 1;
  998                         break;
  999                 case VIDEO_MODE_RADIO: 
 1000                         mode = 0x0003;
 1001                         std  = 0x0040;
 1002                         break;
 1003                 default:
 1004                         mode = 0x0003;
 1005                         std  = 1;
 1006                         break;
 1007                 }
 1008                 msp3400c_write(client, I2C_MSP3400C_DEM, 0x30, mode);
 1009                 msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, std);
 1010 
 1011                 if (bootverbose) {
 1012                         int i;
 1013                         for (i = 0; modelist[i].name != NULL; i++)
 1014                                 if (modelist[i].retval == std)
 1015                                         break;
 1016                         dprintk("msp3410: setting mode: %s (0x%04x)\n",
 1017                                modelist[i].name ? modelist[i].name : "unknown",std);
 1018                 }
 1019 
 1020                 if (std != 1) {
 1021                         /* programmed some specific mode */
 1022                         val = std;
 1023                 } else {
 1024                         /* triggered autodetect */
 1025                         for (;;) {
 1026                                 tsleep(msp->kthread, PRIBIO, "autodetection", hz/10);
 1027                                 if (msp->restart)
 1028                                         goto restart;
 1029 
 1030                                 /* check results */
 1031                                 val = msp3400c_read(client, I2C_MSP3400C_DEM, 0x7e);
 1032                                 if (val < 0x07ff)
 1033                                         break;
 1034                                 dprintk("msp3410: detection still in progress\n");
 1035                         }
 1036                 }
 1037                 for (i = 0; modelist[i].name != NULL; i++)
 1038                         if (modelist[i].retval == val)
 1039                                 break;
 1040                 dprintk("msp3410: current mode: %s (0x%04x)\n",
 1041                         modelist[i].name ? modelist[i].name : "unknown",
 1042                         val);
 1043                 msp->main   = modelist[i].main;
 1044                 msp->second = modelist[i].second;
 1045 
 1046                 if (client->amsound && (msp->norm == VIDEO_MODE_SECAM) && (val != 0x0009)) {
 1047                         /* autodetection has failed, let backup */
 1048                         dprintk("msp3410: autodetection failed, switching to backup mode: %s (0x%04x)\n",
 1049                                 modelist[8].name ? modelist[8].name : "unknown",val);
 1050                         val = 0x0009;
 1051                         msp3400c_write(client, I2C_MSP3400C_DEM, 0x20, val);
 1052                 }
 1053 
 1054                 /* set various prescales */
 1055                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x0d, 0x1900); /* scart */
 1056                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x0e, 0x2403); /* FM */
 1057                 msp3400c_write(client, I2C_MSP3400C_DFP, 0x10, 0x5a00); /* nicam */
 1058 
 1059                 /* set stereo */
 1060                 switch (val) {
 1061                 case 0x0008: /* B/G NICAM */
 1062                 case 0x000a: /* I NICAM */
 1063                         if (val == 0x0008)
 1064                                 msp->mode = MSP_MODE_FM_NICAM1;
 1065                         else
 1066                                 msp->mode = MSP_MODE_FM_NICAM2;
 1067                         /* just turn on stereo */
 1068                         msp->stereo = VIDEO_SOUND_STEREO;
 1069                         msp->nicam_on = 1;
 1070                         msp->watch_stereo = 1;
 1071                         msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
 1072                         break;
 1073                 case 0x0009:                    
 1074                         msp->mode = MSP_MODE_AM_NICAM;
 1075                         msp->stereo = VIDEO_SOUND_MONO;
 1076                         msp->nicam_on = 1;
 1077                         msp3400c_setstereo(client,VIDEO_SOUND_MONO);
 1078                         msp->watch_stereo = 1;
 1079                         break;
 1080                 case 0x0020: /* BTSC */
 1081                         /* just turn on stereo */
 1082                         msp->mode   = MSP_MODE_BTSC;
 1083                         msp->stereo = VIDEO_SOUND_STEREO;
 1084                         msp->nicam_on = 0;
 1085                         msp->watch_stereo = 1;
 1086                         msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
 1087                         break;
 1088                 case 0x0040: /* FM radio */
 1089                         msp->mode   = MSP_MODE_FM_RADIO;
 1090                         msp->stereo = VIDEO_SOUND_STEREO;
 1091                         msp->nicam_on = 0;
 1092                         msp->watch_stereo = 0;
 1093                         /* scart routing */
 1094                         msp3400c_set_scart(client,SCART_IN2,0);
 1095                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x08, 0x0220);
 1096                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x09, 0x0220);
 1097                         msp3400c_write(client,I2C_MSP3400C_DFP, 0x0b, 0x0220);
 1098                         break;
 1099                 case 0x0003:
 1100                         msp->mode   = MSP_MODE_FM_TERRA;
 1101                         msp->stereo = VIDEO_SOUND_STEREO;
 1102                         msp->nicam_on = 0;
 1103                         msp->watch_stereo = 1;
 1104                         msp3400c_setstereo(client,VIDEO_SOUND_STEREO);
 1105                         break;
 1106                 }
 1107 
 1108                 if (msp->watch_stereo)
 1109                         watch_stereo(client);
 1110                 
 1111                 /* unmute + restore dfp registers */
 1112                 msp3400c_setbass(client, msp->bass);
 1113                 msp3400c_settreble(client, msp->treble);
 1114                 msp3400c_setvolume(client, msp->muted, msp->left, msp->right);
 1115                 msp3400c_restore_dfp(client);
 1116 
 1117                 msp->active = 0;
 1118         }
 1119 
 1120 done:
 1121         dprintk("msp3410: thread: exit\n");
 1122         msp->active = 0;
 1123 
 1124         msp->kthread = NULL;
 1125         wakeup(&msp->kthread);
 1126         mtx_unlock(&Giant);
 1127 
 1128         kproc_exit(0);
 1129 }
 1130 
 1131 int msp_attach(bktr_ptr_t bktr)
 1132 {
 1133         struct msp3400c *msp;
 1134         int              rev1,rev2,i;
 1135         int              err;
 1136         char             buf[20];
 1137 
 1138         msp = (struct msp3400c *) malloc(sizeof(struct msp3400c), M_DEVBUF, M_NOWAIT);
 1139         if (msp == NULL)
 1140                 return ENOMEM;
 1141         bktr->msp3400c_info = msp;
 1142         
 1143         memset(msp,0,sizeof(struct msp3400c));
 1144         msp->left   = 65535;
 1145         msp->right  = 65535;
 1146         msp->bass   = 32768;
 1147         msp->treble = 32768;
 1148         msp->input  = -1;
 1149 
 1150         for (i = 0; i < DFP_COUNT; i++)
 1151                 msp->dfp_regs[i] = -1;
 1152         
 1153         msp3400c_reset(bktr);
 1154         
 1155         rev1 = msp3400c_read(bktr, I2C_MSP3400C_DFP, 0x1e);
 1156         if (-1 != rev1)
 1157                 rev2 = msp3400c_read(bktr, I2C_MSP3400C_DFP, 0x1f);
 1158         if ((-1 == rev1) || (0 == rev1 && 0 == rev2)) {
 1159                 free(msp, M_DEVBUF);
 1160                 bktr->msp3400c_info = NULL;
 1161                 printf("%s: msp3400: error while reading chip version\n", bktr_name(bktr));
 1162                 return ENXIO;
 1163         }
 1164 
 1165 #if 0
 1166         /* this will turn on a 1kHz beep - might be useful for debugging... */
 1167         msp3400c_write(bktr,I2C_MSP3400C_DFP, 0x0014, 0x1040);
 1168 #endif
 1169 
 1170         sprintf(buf,"MSP34%02d%c-%c%d",
 1171                 (rev2>>8)&0xff, (rev1&0xff)+'@', ((rev1>>8)&0xff)+'@', rev2&0x1f);
 1172         msp->nicam = (((rev2>>8)&0xff) != 00) ? 1 : 0;
 1173         
 1174         if (bktr->mspsimple == -1) {
 1175                 /* default mode */
 1176                 /* msp->simple = (((rev2>>8)&0xff) == 0) ? 0 : 1; */
 1177                 msp->simple = ((rev1&0xff)+'@' > 'C');
 1178         } else {
 1179                 /* use kenv value */
 1180                 msp->simple = bktr->mspsimple;
 1181         }
 1182 
 1183         /* hello world :-) */
 1184         if (bootverbose) {
 1185                 printf("%s: msp34xx: init: chip=%s", bktr_name(bktr), buf);
 1186                 if (msp->nicam)
 1187                         printf(", has NICAM support");
 1188                 printf("\n");
 1189         }
 1190 
 1191         /* startup control thread */
 1192         err = kproc_create(msp->simple ? msp3410d_thread : msp3400c_thread,
 1193                              bktr, &msp->kthread, (RFFDG | RFPROC), 0,
 1194                              "%s_msp34xx_thread", bktr->bktr_xname);
 1195         if (err) {
 1196                 printf("%s: Error returned by kproc_create: %d", bktr_name(bktr), err);
 1197                 free(msp, M_DEVBUF);
 1198                 bktr->msp3400c_info = NULL;
 1199                 return ENXIO;
 1200         }
 1201         wakeup(msp->kthread);
 1202 
 1203         /* done */
 1204         return 0;
 1205 }
 1206 
 1207 int msp_detach(bktr_ptr_t client)
 1208 {
 1209         struct msp3400c *msp  = (struct msp3400c*)client->msp3400c_info;
 1210         
 1211         /* shutdown control thread */
 1212         if (msp->kthread) 
 1213         {
 1214                 /* XXX mutex lock required */
 1215                 mtx_lock(&Giant);
 1216                 msp->rmmod = 1;
 1217                 msp->watch_stereo = 0;
 1218                 wakeup(msp->kthread);
 1219 
 1220                 while (msp->kthread)
 1221                         tsleep(&msp->kthread, PRIBIO, "wait for kthread", hz/10);
 1222                 mtx_unlock(&Giant);
 1223         }
 1224 
 1225         if (client->msp3400c_info != NULL) {
 1226                 free(client->msp3400c_info, M_DEVBUF);
 1227                 client->msp3400c_info = NULL;
 1228         }
 1229 
 1230         msp3400c_reset(client);
 1231         
 1232         return 0;
 1233 }
 1234 
 1235 void msp_wake_thread(bktr_ptr_t client)
 1236 {
 1237         struct msp3400c *msp  = (struct msp3400c*)client->msp3400c_info;
 1238 
 1239         msp3400c_setvolume(client,msp->muted,0,0);
 1240         msp->watch_stereo=0;
 1241         if (msp->active)
 1242                 msp->restart = 1;
 1243         wakeup(msp->kthread);
 1244 }
 1245 
 1246 void msp_halt_thread(bktr_ptr_t client)
 1247 {
 1248         struct msp3400c *msp  = (struct msp3400c*)client->msp3400c_info;
 1249 
 1250         msp3400c_setvolume(client,msp->muted,0,0);
 1251         if (msp->active)
 1252                 msp->restart = 1;
 1253         msp->halt_thread = 1;
 1254         wakeup(msp->kthread);
 1255 }
 1256 #endif /* BKTR_NEW_MSP34XX_DRIVER */

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