drivers/sound/ad1848

/* */
   1 /*
   2  * sound/ad1848_mixer.h
   3  * 
   4  * Definitions for the mixer of AD1848 and compatible codecs.
   5  * 
   6  * Copyright by Hannu Savolainen 1994
   7  * 
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are
  10  * met: 1. Redistributions of source code must retain the above copyright
  11  * notice, this list of conditions and the following disclaimer. 2.
  12  * Redistributions in binary form must reproduce the above copyright notice,
  13  * this list of conditions and the following disclaimer in the documentation
  14  * and/or other materials provided with the distribution.
  15  * 
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
  17  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  22  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  23  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28 /*
  29  * The AD1848 codec has generic input lines called Line, Aux1 and Aux2.
  30  * Soundcard manufacturers have connected actual inputs (CD, synth, line,
  31  * etc) to these inputs in different order. Therefore it's difficult
  32  * to assign mixer channels to to these inputs correctly. The following
  33  * contains two alternative mappings. The first one is for GUS MAX and
  34  * the second is just a generic one (line1, line2 and line3).
  35  * (Actually this is not a mapping but rather some kind of interleaving
  36  * solution).
  37  */
  38 #ifdef GUSMAX_MIXER
  39 #define MODE1_REC_DEVICES               (SOUND_MASK_LINE | SOUND_MASK_MIC | \
  40                                          SOUND_MASK_CD|SOUND_MASK_IMIX)
  41 
  42 #define MODE1_MIXER_DEVICES             (SOUND_MASK_SYNTH | SOUND_MASK_MIC | \
  43                                          SOUND_MASK_CD | \
  44                                          SOUND_MASK_IGAIN | \
  45                                          SOUND_MASK_PCM|SOUND_MASK_IMIX)
  46 
  47 #define MODE2_MIXER_DEVICES             (SOUND_MASK_SYNTH | SOUND_MASK_LINE | SOUND_MASK_MIC | \
  48                                          SOUND_MASK_CD | SOUND_MASK_SPEAKER | \
  49                                          SOUND_MASK_IGAIN | \
  50                                          SOUND_MASK_PCM | SOUND_MASK_IMIX)
  51 #else   /* Generic mapping */
  52 #define MODE1_REC_DEVICES               (SOUND_MASK_LINE3 | SOUND_MASK_MIC | \
  53                                          SOUND_MASK_LINE1|SOUND_MASK_IMIX)
  54 
  55 #define MODE1_MIXER_DEVICES             (SOUND_MASK_LINE1 | SOUND_MASK_MIC | \
  56                                          SOUND_MASK_LINE2 | \
  57                                          SOUND_MASK_IGAIN | \
  58                                          SOUND_MASK_PCM | SOUND_MASK_IMIX)
  59 
  60 #define MODE2_MIXER_DEVICES             (SOUND_MASK_LINE1 | SOUND_MASK_LINE2 | SOUND_MASK_MIC | \
  61                                          SOUND_MASK_LINE3 | SOUND_MASK_SPEAKER | \
  62                                          SOUND_MASK_IGAIN | \
  63                                          SOUND_MASK_PCM | SOUND_MASK_IMIX)
  64 #endif
  65 
  66 struct mixer_def {
  67         unsigned int regno: 7;
  68         unsigned int polarity:1;        /* 0=normal, 1=reversed */
  69         unsigned int bitpos:4;
  70         unsigned int nbits:4;
  71 };
  72 
  73 static char mix_cvt[101] = {
  74         0, 0,3,7,10,13,16,19,21,23,26,28,30,32,34,35,37,39,40,42,
  75         43,45,46,47,49,50,51,52,53,55,56,57,58,59,60,61,62,63,64,65,
  76         65,66,67,68,69,70,70,71,72,73,73,74,75,75,76,77,77,78,79,79,
  77         80,81,81,82,82,83,84,84,85,85,86,86,87,87,88,88,89,89,90,90,
  78         91,91,92,92,93,93,94,94,95,95,96,96,96,97,97,98,98,98,99,99,
  79         100
  80 };
  81 
  82 typedef struct mixer_def mixer_ent;
  83 
  84 /*
  85  * Most of the mixer entries work in backwards. Setting the polarity field
  86  * makes them to work correctly.
  87  *
  88  * The channel numbering used by individual soundcards is not fixed. Some
  89  * cards have assigned different meanings for the AUX1, AUX2 and LINE inputs.
  90  * The current version doesn't try to compensate this.
  91  */
  92 
  93 #define MIX_ENT(name, reg_l, pola_l, pos_l, len_l, reg_r, pola_r, pos_r, len_r) \
  94         {{reg_l, pola_l, pos_l, len_l}, {reg_r, pola_r, pos_r, len_r}}
  95 
  96 mixer_ent mix_devices[32][2] = {        /* As used in GUS MAX */
  97 MIX_ENT(SOUND_MIXER_VOLUME,      0, 0, 0, 0,     0, 0, 0, 0),
  98 MIX_ENT(SOUND_MIXER_BASS,        0, 0, 0, 0,     0, 0, 0, 0),
  99 MIX_ENT(SOUND_MIXER_TREBLE,      0, 0, 0, 0,     0, 0, 0, 0),
 100 MIX_ENT(SOUND_MIXER_SYNTH,       4, 1, 0, 5,     5, 1, 0, 5),
 101 MIX_ENT(SOUND_MIXER_PCM,         6, 1, 0, 6,     7, 1, 0, 6),
 102 MIX_ENT(SOUND_MIXER_SPEAKER,    26, 1, 0, 4,     0, 0, 0, 0),
 103 MIX_ENT(SOUND_MIXER_LINE,       18, 1, 0, 5,    19, 1, 0, 5),
 104 MIX_ENT(SOUND_MIXER_MIC,         0, 0, 5, 1,     1, 0, 5, 1),
 105 MIX_ENT(SOUND_MIXER_CD,          2, 1, 0, 5,     3, 1, 0, 5),
 106 MIX_ENT(SOUND_MIXER_IMIX,       13, 1, 2, 6,     0, 0, 0, 0),
 107 MIX_ENT(SOUND_MIXER_ALTPCM,      0, 0, 0, 0,     0, 0, 0, 0),
 108 MIX_ENT(SOUND_MIXER_RECLEV,      0, 0, 0, 0,     0, 0, 0, 0),
 109 MIX_ENT(SOUND_MIXER_IGAIN,       0, 0, 0, 4,     1, 0, 0, 4),
 110 MIX_ENT(SOUND_MIXER_OGAIN,       0, 0, 0, 0,     0, 0, 0, 0),
 111 MIX_ENT(SOUND_MIXER_LINE1,       2, 1, 0, 5,     3, 1, 0, 5),
 112 MIX_ENT(SOUND_MIXER_LINE2,       4, 1, 0, 5,     5, 1, 0, 5),
 113 MIX_ENT(SOUND_MIXER_LINE3,      18, 1, 0, 5,    19, 1, 0, 5)
 114 };
 115 
 116 static unsigned short default_mixer_levels[SOUND_MIXER_NRDEVICES] =
 117 {
 118   0x5a5a,                       /* Master Volume */
 119   0x3232,                       /* Bass */
 120   0x3232,                       /* Treble */
 121   0x4b4b,                       /* FM */
 122   0x4040,                       /* PCM */
 123   0x4b4b,                       /* PC Speaker */
 124   0x2020,                       /* Ext Line */
 125   0x1010,                       /* Mic */
 126   0x4b4b,                       /* CD */
 127   0x0000,                       /* Recording monitor */
 128   0x4b4b,                       /* SB PCM */
 129   0x4b4b,                       /* Recording level */
 130   0x4b4b,                       /* Input gain */
 131   0x4b4b,                       /* Output gain */
 132   0x4040,                       /* Line1 */
 133   0x4040,                       /* Line2 */
 134   0x1515                        /* Line3 (usually line in)*/
 135 };
 136 
 137 #define LEFT_CHN        0
 138 #define RIGHT_CHN       1
/* */
root/drivers/sound/ad1848_mixer.h

INCLUDED FROM
