drivers/sound/ad1848

/* */
   1 /*
   2  * sound/ad1848_mixer.h
   3  * 
   4  * Definitions for the mixer of AD1848 and compatible codecs.
   5  */
   6 
   7 /*
   8  * Copyright by Hannu Savolainen 1993-1996
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions are
  12  * met: 1. Redistributions of source code must retain the above copyright
  13  * notice, this list of conditions and the following disclaimer. 2.
  14  * Redistributions in binary form must reproduce the above copyright notice,
  15  * this list of conditions and the following disclaimer in the documentation
  16  * and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
  19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  21  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  22  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  24  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  25  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30 
  31 
  32 /*
  33  * The AD1848 codec has generic input lines called Line, Aux1 and Aux2.
  34  * Soundcard manufacturers have connected actual inputs (CD, synth, line,
  35  * etc) to these inputs in different order. Therefore it's difficult
  36  * to assign mixer channels to to these inputs correctly. The following
  37  * contains two alternative mappings. The first one is for GUS MAX and
  38  * the second is just a generic one (line1, line2 and line3).
  39  * (Actually this is not a mapping but rather some kind of interleaving
  40  * solution).
  41  */
  42 #define MODE1_REC_DEVICES               (SOUND_MASK_LINE3 | SOUND_MASK_MIC | \
  43                                          SOUND_MASK_LINE1|SOUND_MASK_IMIX)
  44 
  45 #define MODE1_MIXER_DEVICES             (SOUND_MASK_LINE1 | SOUND_MASK_MIC | \
  46                                          SOUND_MASK_LINE2 | \
  47                                          SOUND_MASK_IGAIN | \
  48                                          SOUND_MASK_PCM | SOUND_MASK_IMIX)
  49 
  50 #define MODE2_MIXER_DEVICES             (SOUND_MASK_LINE1 | SOUND_MASK_LINE2 | SOUND_MASK_MIC | \
  51                                          SOUND_MASK_LINE3 | SOUND_MASK_SPEAKER | \
  52                                          SOUND_MASK_IGAIN | \
  53                                          SOUND_MASK_PCM | SOUND_MASK_IMIX)
  54 
  55 #define MODE3_MIXER_DEVICES             (MODE2_MIXER_DEVICES | SOUND_MASK_VOLUME)
  56 
  57 struct mixer_def {
  58         unsigned int regno: 7;
  59         unsigned int polarity:1;        /* 0=normal, 1=reversed */
  60         unsigned int bitpos:4;
  61         unsigned int nbits:4;
  62 };
  63 
  64 static char mix_cvt[101] = {
  65         0, 0,3,7,10,13,16,19,21,23,26,28,30,32,34,35,37,39,40,42,
  66         43,45,46,47,49,50,51,52,53,55,56,57,58,59,60,61,62,63,64,65,
  67         65,66,67,68,69,70,70,71,72,73,73,74,75,75,76,77,77,78,79,79,
  68         80,81,81,82,82,83,84,84,85,85,86,86,87,87,88,88,89,89,90,90,
  69         91,91,92,92,93,93,94,94,95,95,96,96,96,97,97,98,98,98,99,99,
  70         100
  71 };
  72 
  73 typedef struct mixer_def mixer_ent;
  74 
  75 /*
  76  * Most of the mixer entries work in backwards. Setting the polarity field
  77  * makes them to work correctly.
  78  *
  79  * The channel numbering used by individual soundcards is not fixed. Some
  80  * cards have assigned different meanings for the AUX1, AUX2 and LINE inputs.
  81  * The current version doesn't try to compensate this.
  82  */
  83 
  84 #define MIX_ENT(name, reg_l, pola_l, pos_l, len_l, reg_r, pola_r, pos_r, len_r) \
  85         {{reg_l, pola_l, pos_l, len_l}, {reg_r, pola_r, pos_r, len_r}}
  86 
  87 mixer_ent mix_devices[32][2] = {
  88 MIX_ENT(SOUND_MIXER_VOLUME,     27, 1, 0, 4,    29, 1, 0, 4),
  89 MIX_ENT(SOUND_MIXER_BASS,        0, 0, 0, 0,     0, 0, 0, 0),
  90 MIX_ENT(SOUND_MIXER_TREBLE,      0, 0, 0, 0,     0, 0, 0, 0),
  91 MIX_ENT(SOUND_MIXER_SYNTH,       4, 1, 0, 5,     5, 1, 0, 5),
  92 MIX_ENT(SOUND_MIXER_PCM,         6, 1, 0, 6,     7, 1, 0, 6),
  93 MIX_ENT(SOUND_MIXER_SPEAKER,    26, 1, 0, 4,     0, 0, 0, 0),
  94 MIX_ENT(SOUND_MIXER_LINE,       18, 1, 0, 5,    19, 1, 0, 5),
  95 MIX_ENT(SOUND_MIXER_MIC,         0, 0, 5, 1,     1, 0, 5, 1),
  96 MIX_ENT(SOUND_MIXER_CD,          2, 1, 0, 5,     3, 1, 0, 5),
  97 MIX_ENT(SOUND_MIXER_IMIX,       13, 1, 2, 6,     0, 0, 0, 0),
  98 MIX_ENT(SOUND_MIXER_ALTPCM,      0, 0, 0, 0,     0, 0, 0, 0),
  99 MIX_ENT(SOUND_MIXER_RECLEV,      0, 0, 0, 0,     0, 0, 0, 0),
 100 MIX_ENT(SOUND_MIXER_IGAIN,       0, 0, 0, 4,     1, 0, 0, 4),
 101 MIX_ENT(SOUND_MIXER_OGAIN,       0, 0, 0, 0,     0, 0, 0, 0),
 102 MIX_ENT(SOUND_MIXER_LINE1,       2, 1, 0, 5,     3, 1, 0, 5),
 103 MIX_ENT(SOUND_MIXER_LINE2,       4, 1, 0, 5,     5, 1, 0, 5),
 104 MIX_ENT(SOUND_MIXER_LINE3,      18, 1, 0, 5,    19, 1, 0, 5)
 105 };
 106 
 107 static unsigned short default_mixer_levels[SOUND_MIXER_NRDEVICES] =
 108 {
 109   0x3232,                       /* Master Volume */
 110   0x3232,                       /* Bass */
 111   0x3232,                       /* Treble */
 112   0x4b4b,                       /* FM */
 113   0x3232,                       /* PCM */
 114   0x4b4b,                       /* PC Speaker */
 115   0x2020,                       /* Ext Line */
 116   0x1010,                       /* Mic */
 117   0x4b4b,                       /* CD */
 118   0x0000,                       /* Recording monitor */
 119   0x4b4b,                       /* SB PCM */
 120   0x4b4b,                       /* Recording level */
 121   0x4b4b,                       /* Input gain */
 122   0x4b4b,                       /* Output gain */
 123   0x4040,                       /* Line1 */
 124   0x4040,                       /* Line2 */
 125   0x1515                        /* Line3 (usually line in)*/
 126 };
 127 
 128 #define LEFT_CHN        0
 129 #define RIGHT_CHN       1
/* */
root/drivers/sound/ad1848_mixer.h

INCLUDED FROM
