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)
  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)
  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 
  74 typedef struct mixer_def mixer_ent;
  75 
  76 /*
  77  * Most of the mixer entries work in backwards. Setting the polarity field
  78  * makes them to work correctly.
  79  *
  80  * The channel numbering used by individual soundcards is not fixed. Some
  81  * cards have assigned different meanings for the AUX1, AUX2 and LINE inputs.
  82  * The current version doesn't try to compensate this.
  83  */
  84 
  85 #define MIX_ENT(name, reg_l, pola_l, pos_l, len_l, reg_r, pola_r, pos_r, len_r) \
  86         {{reg_l, pola_l, pos_r, len_l}, {reg_r, pola_r, pos_r, len_r}}
  87 
  88 mixer_ent mix_devices[32][2] = {        /* As used in GUS MAX */
  89 MIX_ENT(SOUND_MIXER_VOLUME,      0, 0, 0, 0,     0, 0, 0, 0),
  90 MIX_ENT(SOUND_MIXER_BASS,        0, 0, 0, 0,     0, 0, 0, 0),
  91 MIX_ENT(SOUND_MIXER_TREBLE,      0, 0, 0, 0,     0, 0, 0, 0),
  92 MIX_ENT(SOUND_MIXER_SYNTH,       4, 1, 0, 5,     5, 1, 0, 5),
  93 MIX_ENT(SOUND_MIXER_PCM,         6, 1, 0, 6,     7, 1, 0, 6),
  94 MIX_ENT(SOUND_MIXER_SPEAKER,    26, 1, 0, 4,     0, 0, 0, 0),
  95 MIX_ENT(SOUND_MIXER_LINE,       18, 1, 0, 5,    19, 1, 0, 5),
  96 MIX_ENT(SOUND_MIXER_MIC,         0, 0, 5, 1,     1, 0, 5, 1),
  97 MIX_ENT(SOUND_MIXER_CD,          2, 1, 0, 5,     3, 1, 0, 5),
  98 MIX_ENT(SOUND_MIXER_IMIX,       13, 1, 2, 6,     0, 0, 0, 0),
  99 MIX_ENT(SOUND_MIXER_ALTPCM,      0, 0, 0, 0,     0, 0, 0, 0),
 100 MIX_ENT(SOUND_MIXER_RECLEV,      0, 0, 0, 0,     0, 0, 0, 0),
 101 MIX_ENT(SOUND_MIXER_IGAIN,       0, 0, 0, 4,     1, 0, 0, 4),
 102 MIX_ENT(SOUND_MIXER_OGAIN,       0, 0, 0, 0,     0, 0, 0, 0),
 103 MIX_ENT(SOUND_MIXER_LINE1,       2, 1, 0, 5,     3, 1, 0, 5),
 104 MIX_ENT(SOUND_MIXER_LINE2,       4, 1, 0, 5,     5, 1, 0, 5),
 105 MIX_ENT(SOUND_MIXER_LINE3,      18, 1, 0, 5,    19, 1, 0, 5)
 106 };
 107 
 108 static unsigned short default_mixer_levels[SOUND_MIXER_NRDEVICES] =
 109 {
 110   0x5a5a,                       /* Master Volume */
 111   0x3232,                       /* Bass */
 112   0x3232,                       /* Treble */
 113   0x4b4b,                       /* FM */
 114   0x6464,                       /* PCM */
 115   0x4b4b,                       /* PC Speaker */
 116   0x4b4b,                       /* Ext Line */
 117   0x1010,                       /* Mic */
 118   0x4b4b,                       /* CD */
 119   0x0000,                       /* Recording monitor */
 120   0x4b4b,                       /* SB PCM */
 121   0x4b4b,                       /* Recording level */
 122   0x4b4b,                       /* Input gain */
 123   0x4b4b,                       /* Output gain */
 124   0x4b4b,                       /* Line1 */
 125   0x4b4b,                       /* Line2 */
 126   0x3232                        /* Line3 (usually line in)*/
 127 };
 128 
 129 #define LEFT_CHN        0
 130 #define RIGHT_CHN       1
/* */
root/drivers/sound/ad1848_mixer.h

INCLUDED FROM
