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jcastillo |
/*
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* sound/ad1848_mixer.h
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*
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* Definitions for the mixer of AD1848 and compatible codecs.
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*/
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/*
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* Copyright (C) by Hannu Savolainen 1993-1996
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*
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* USS/Lite for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
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* Version 2 (June 1991). See the "COPYING" file distributed with this software
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* for more info.
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*/
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/*
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* The AD1848 codec has generic input lines called Line, Aux1 and Aux2.
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* Soundcard manufacturers have connected actual inputs (CD, synth, line,
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* etc) to these inputs in different order. Therefore it's difficult
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* to assign mixer channels to these inputs correctly. The following
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* contains two alternative mappings. The first one is for GUS MAX and
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* the second is just a generic one (line1, line2 and line3).
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* (Actually this is not a mapping but rather some kind of interleaving
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* solution).
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*/
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#define MODE1_REC_DEVICES (SOUND_MASK_LINE3 | SOUND_MASK_MIC | \
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SOUND_MASK_LINE1|SOUND_MASK_IMIX)
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#define MODE1_MIXER_DEVICES (SOUND_MASK_LINE1 | SOUND_MASK_MIC | \
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SOUND_MASK_LINE2 | \
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SOUND_MASK_IGAIN | \
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SOUND_MASK_PCM | SOUND_MASK_IMIX)
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#define MODE2_MIXER_DEVICES (SOUND_MASK_LINE1 | SOUND_MASK_LINE2 | SOUND_MASK_MIC | \
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SOUND_MASK_LINE3 | SOUND_MASK_SPEAKER | \
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SOUND_MASK_IGAIN | \
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SOUND_MASK_PCM | SOUND_MASK_IMIX)
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#define MODE3_MIXER_DEVICES (MODE2_MIXER_DEVICES | SOUND_MASK_VOLUME)
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struct mixer_def {
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unsigned int regno: 7;
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unsigned int polarity:1; /* 0=normal, 1=reversed */
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unsigned int bitpos:4;
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unsigned int nbits:4;
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};
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static char mix_cvt[101] = {
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0, 0,3,7,10,13,16,19,21,23,26,28,30,32,34,35,37,39,40,42,
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43,45,46,47,49,50,51,52,53,55,56,57,58,59,60,61,62,63,64,65,
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65,66,67,68,69,70,70,71,72,73,73,74,75,75,76,77,77,78,79,79,
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80,81,81,82,82,83,84,84,85,85,86,86,87,87,88,88,89,89,90,90,
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91,91,92,92,93,93,94,94,95,95,96,96,96,97,97,98,98,98,99,99,
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100
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};
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typedef struct mixer_def mixer_ent;
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/*
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* Most of the mixer entries work in backwards. Setting the polarity field
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* makes them to work correctly.
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*
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* The channel numbering used by individual soundcards is not fixed. Some
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* cards have assigned different meanings for the AUX1, AUX2 and LINE inputs.
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* The current version doesn't try to compensate this.
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*/
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#define MIX_ENT(name, reg_l, pola_l, pos_l, len_l, reg_r, pola_r, pos_r, len_r) \
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{{reg_l, pola_l, pos_l, len_l}, {reg_r, pola_r, pos_r, len_r}}
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mixer_ent mix_devices[32][2] = {
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MIX_ENT(SOUND_MIXER_VOLUME, 27, 1, 0, 4, 29, 1, 0, 4),
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MIX_ENT(SOUND_MIXER_BASS, 0, 0, 0, 0, 0, 0, 0, 0),
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MIX_ENT(SOUND_MIXER_TREBLE, 0, 0, 0, 0, 0, 0, 0, 0),
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MIX_ENT(SOUND_MIXER_SYNTH, 4, 1, 0, 5, 5, 1, 0, 5),
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MIX_ENT(SOUND_MIXER_PCM, 6, 1, 0, 6, 7, 1, 0, 6),
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MIX_ENT(SOUND_MIXER_SPEAKER, 26, 1, 0, 4, 0, 0, 0, 0),
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MIX_ENT(SOUND_MIXER_LINE, 18, 1, 0, 5, 19, 1, 0, 5),
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MIX_ENT(SOUND_MIXER_MIC, 0, 0, 5, 1, 1, 0, 5, 1),
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MIX_ENT(SOUND_MIXER_CD, 2, 1, 0, 5, 3, 1, 0, 5),
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MIX_ENT(SOUND_MIXER_IMIX, 13, 1, 2, 6, 0, 0, 0, 0),
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MIX_ENT(SOUND_MIXER_ALTPCM, 0, 0, 0, 0, 0, 0, 0, 0),
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MIX_ENT(SOUND_MIXER_RECLEV, 0, 0, 0, 0, 0, 0, 0, 0),
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MIX_ENT(SOUND_MIXER_IGAIN, 0, 0, 0, 4, 1, 0, 0, 4),
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MIX_ENT(SOUND_MIXER_OGAIN, 0, 0, 0, 0, 0, 0, 0, 0),
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MIX_ENT(SOUND_MIXER_LINE1, 2, 1, 0, 5, 3, 1, 0, 5),
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MIX_ENT(SOUND_MIXER_LINE2, 4, 1, 0, 5, 5, 1, 0, 5),
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MIX_ENT(SOUND_MIXER_LINE3, 18, 1, 0, 5, 19, 1, 0, 5)
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};
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static unsigned short default_mixer_levels[SOUND_MIXER_NRDEVICES] =
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{
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0x3232, /* Master Volume */
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0x3232, /* Bass */
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0x3232, /* Treble */
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0x4b4b, /* FM */
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0x3232, /* PCM */
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0x4b4b, /* PC Speaker */
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0x2020, /* Ext Line */
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0x1010, /* Mic */
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0x4b4b, /* CD */
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0x0000, /* Recording monitor */
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0x4b4b, /* SB PCM */
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0x4b4b, /* Recording level */
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0x4b4b, /* Input gain */
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0x4b4b, /* Output gain */
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0x4040, /* Line1 */
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0x4040, /* Line2 */
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0x1515 /* Line3 (usually line in)*/
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};
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#define LEFT_CHN 0
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#define RIGHT_CHN 1
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