[funini.com] -> [kei@sodan] -> Kernel Reading

root/sound/oss/ad1848_mixer.h

/* [<][>][^][v][top][bottom][index][help] */

INCLUDED FROM


/*
 * sound/oss/ad1848_mixer.h
 *
 * Definitions for the mixer of AD1848 and compatible codecs.
 */

/*
 * Copyright (C) by Hannu Savolainen 1993-1997
 *
 * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
 * Version 2 (June 1991). See the "COPYING" file distributed with this software
 * for more info.
 */


/*
 * The AD1848 codec has generic input lines called Line, Aux1 and Aux2.
 * Sound card manufacturers have connected actual inputs (CD, synth, line,
 * etc) to these inputs in different order. Therefore it's difficult
 * to assign mixer channels to these inputs correctly. The following
 * contains two alternative mappings. The first one is for GUS MAX and
 * the second is just a generic one (line1, line2 and line3).
 * (Actually this is not a mapping but rather some kind of interleaving
 * solution).
 */
#define MODE1_REC_DEVICES               (SOUND_MASK_LINE3 | SOUND_MASK_MIC | \
                                         SOUND_MASK_LINE1 | SOUND_MASK_IMIX)

#define SPRO_REC_DEVICES                (SOUND_MASK_LINE | SOUND_MASK_MIC | \
                                         SOUND_MASK_CD | SOUND_MASK_LINE1)

#define MODE1_MIXER_DEVICES             (SOUND_MASK_LINE1 | SOUND_MASK_MIC | \
                                         SOUND_MASK_LINE2 | \
                                         SOUND_MASK_IGAIN | \
                                         SOUND_MASK_PCM | SOUND_MASK_IMIX)

#define MODE2_MIXER_DEVICES             (SOUND_MASK_LINE1 | SOUND_MASK_LINE2 | \
                                         SOUND_MASK_MIC | \
                                         SOUND_MASK_LINE3 | SOUND_MASK_SPEAKER | \
                                         SOUND_MASK_IGAIN | \
                                         SOUND_MASK_PCM | SOUND_MASK_IMIX)

#define MODE3_MIXER_DEVICES             (MODE2_MIXER_DEVICES | SOUND_MASK_VOLUME)

/* OPTi 82C930 has no IMIX level control, but it can still be selected as an
 * input
 */
#define C930_MIXER_DEVICES      (SOUND_MASK_LINE1 | SOUND_MASK_LINE2 | \
                                 SOUND_MASK_MIC | SOUND_MASK_VOLUME | \
                                 SOUND_MASK_LINE3 | \
                                 SOUND_MASK_IGAIN | SOUND_MASK_PCM)

#define SPRO_MIXER_DEVICES      (SOUND_MASK_VOLUME | SOUND_MASK_PCM | \
                                 SOUND_MASK_LINE | SOUND_MASK_SYNTH | \
                                 SOUND_MASK_CD | SOUND_MASK_MIC | \
                                 SOUND_MASK_SPEAKER | SOUND_MASK_LINE1 | \
                                 SOUND_MASK_OGAIN)

struct mixer_def {
        unsigned int regno:6;           /* register number for volume */
        unsigned int polarity:1;        /* volume polarity: 0=normal, 1=reversed */
        unsigned int bitpos:3;          /* position of bits in register for volume */
        unsigned int nbits:3;           /* number of bits in register for volume */
        unsigned int mutereg:6;         /* register number for mute bit */
        unsigned int mutepol:1;         /* mute polarity: 0=normal, 1=reversed */
        unsigned int mutepos:4;         /* position of mute bit in register */
        unsigned int recreg:6;          /* register number for recording bit */
        unsigned int recpol:1;          /* recording polarity: 0=normal, 1=reversed */
        unsigned int recpos:4;          /* position of recording bit in register */
};

static char mix_cvt[101] = {
         0, 0, 3, 7,10,13,16,19,21,23,26,28,30,32,34,35,37,39,40,42,
        43,45,46,47,49,50,51,52,53,55,56,57,58,59,60,61,62,63,64,65,
        65,66,67,68,69,70,70,71,72,73,73,74,75,75,76,77,77,78,79,79,
        80,81,81,82,82,83,84,84,85,85,86,86,87,87,88,88,89,89,90,90,
        91,91,92,92,93,93,94,94,95,95,96,96,96,97,97,98,98,98,99,99,
        100
};

typedef struct mixer_def mixer_ent;
typedef mixer_ent mixer_ents[2];

/*
 * Most of the mixer entries work in backwards. Setting the polarity field
 * makes them to work correctly.
 *
 * The channel numbering used by individual sound cards is not fixed. Some
 * cards have assigned different meanings for the AUX1, AUX2 and LINE inputs.
 * The current version doesn't try to compensate this.
 */

#define MIX_ENT(name, reg_l, pola_l, pos_l, len_l, reg_r, pola_r, pos_r, len_r, mute_bit)       \
        [name] = {{reg_l, pola_l, pos_l, len_l, reg_l, 0, mute_bit, 0, 0, 8},                   \
                  {reg_r, pola_r, pos_r, len_r, reg_r, 0, mute_bit, 0, 0, 8}}

#define MIX_ENT2(name, reg_l, pola_l, pos_l, len_l, mute_reg_l, mute_pola_l, mute_pos_l, \
                    rec_reg_l, rec_pola_l, rec_pos_l,                                    \
                 reg_r, pola_r, pos_r, len_r, mute_reg_r, mute_pola_r, mute_pos_r,       \
                    rec_reg_r, rec_pola_r, rec_pos_r)                                    \
        [name] = {{reg_l, pola_l, pos_l, len_l, mute_reg_l, mute_pola_l, mute_pos_l,     \
                    rec_reg_l, rec_pola_l, rec_pos_l},                                   \
                  {reg_r, pola_r, pos_r, len_r, mute_reg_r, mute_pola_r, mute_pos_r,     \
                    rec_reg_r, rec_pola_r, rec_pos_r}}

static mixer_ents ad1848_mix_devices[32] = {
        MIX_ENT(SOUND_MIXER_VOLUME,     27, 1, 0, 4,    29, 1, 0, 4,  8),
        MIX_ENT(SOUND_MIXER_BASS,        0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_TREBLE,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_SYNTH,       4, 1, 0, 5,     5, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_PCM,         6, 1, 0, 6,     7, 1, 0, 6,  7),
        MIX_ENT(SOUND_MIXER_SPEAKER,    26, 1, 0, 4,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_LINE,       18, 1, 0, 5,    19, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_MIC,         0, 0, 5, 1,     1, 0, 5, 1,  8),
        MIX_ENT(SOUND_MIXER_CD,          2, 1, 0, 5,     3, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_IMIX,       13, 1, 2, 6,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_ALTPCM,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_RECLEV,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_IGAIN,       0, 0, 0, 4,     1, 0, 0, 4,  8),
        MIX_ENT(SOUND_MIXER_OGAIN,       0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_LINE1,       2, 1, 0, 5,     3, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_LINE2,       4, 1, 0, 5,     5, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_LINE3,      18, 1, 0, 5,    19, 1, 0, 5,  7)
};

static mixer_ents iwave_mix_devices[32] = {
        MIX_ENT(SOUND_MIXER_VOLUME,     25, 1, 0, 5,    27, 1, 0, 5,  8),
        MIX_ENT(SOUND_MIXER_BASS,        0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_TREBLE,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_SYNTH,       4, 1, 0, 5,     5, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_PCM,         6, 1, 0, 6,     7, 1, 0, 6,  7),
        MIX_ENT(SOUND_MIXER_SPEAKER,    26, 1, 0, 4,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_LINE,       18, 1, 0, 5,    19, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_MIC,         0, 0, 5, 1,     1, 0, 5, 1,  8),
        MIX_ENT(SOUND_MIXER_CD,          2, 1, 0, 5,     3, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_IMIX,       16, 1, 0, 5,    17, 1, 0, 5,  8),
        MIX_ENT(SOUND_MIXER_ALTPCM,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_RECLEV,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_IGAIN,       0, 0, 0, 4,     1, 0, 0, 4,  8),
        MIX_ENT(SOUND_MIXER_OGAIN,       0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_LINE1,       2, 1, 0, 5,     3, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_LINE2,       4, 1, 0, 5,     5, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_LINE3,      18, 1, 0, 5,    19, 1, 0, 5,  7)
};

static mixer_ents cs42xb_mix_devices[32] = {
        /* Digital master volume actually has seven bits, but we only use
           six to avoid the discontinuity when the analog gain kicks in. */
        MIX_ENT(SOUND_MIXER_VOLUME,     46, 1, 0, 6,    47, 1, 0, 6,  7),
        MIX_ENT(SOUND_MIXER_BASS,        0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_TREBLE,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_SYNTH,       4, 1, 0, 5,     5, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_PCM,         6, 1, 0, 6,     7, 1, 0, 6,  7),
        MIX_ENT(SOUND_MIXER_SPEAKER,    26, 1, 0, 4,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_LINE,       18, 1, 0, 5,    19, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_MIC,        34, 1, 0, 5,    35, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_CD,          2, 1, 0, 5,     3, 1, 0, 5,  7),
        /* For the IMIX entry, it was not possible to use the MIX_ENT macro
           because the mute bit is in different positions for the two
           channels and requires reverse polarity. */
        [SOUND_MIXER_IMIX] = {{13, 1, 2, 6, 13, 1, 0, 0, 0, 8},
                      {42, 1, 0, 6, 42, 1, 7, 0, 0, 8}},
        MIX_ENT(SOUND_MIXER_ALTPCM,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_RECLEV,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_IGAIN,       0, 0, 0, 4,     1, 0, 0, 4,  8),
        MIX_ENT(SOUND_MIXER_OGAIN,       0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_LINE1,       2, 1, 0, 5,     3, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_LINE2,       4, 1, 0, 5,     5, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_LINE3,      38, 1, 0, 6,    39, 1, 0, 6,  7)
};

/* OPTi 82C930 has somewhat different port addresses.
 * Note: VOLUME == SPEAKER, SYNTH == LINE2, LINE == LINE3, CD == LINE1
 * VOLUME, SYNTH, LINE, CD are not enabled above.
 * MIC is level of mic monitoring direct to output. Same for CD, LINE, etc.
 */
static mixer_ents c930_mix_devices[32] = {
        MIX_ENT(SOUND_MIXER_VOLUME,     22, 1, 1, 5,    23, 1, 1, 5,  7),
        MIX_ENT(SOUND_MIXER_BASS,        0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_TREBLE,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_SYNTH,       4, 1, 1, 4,     5, 1, 1, 4,  7),
        MIX_ENT(SOUND_MIXER_PCM,         6, 1, 0, 5,     7, 1, 0, 5,  7),
        MIX_ENT(SOUND_MIXER_SPEAKER,    22, 1, 1, 5,    23, 1, 1, 5,  7),
        MIX_ENT(SOUND_MIXER_LINE,       18, 1, 1, 4,    19, 1, 1, 4,  7),
        MIX_ENT(SOUND_MIXER_MIC,        20, 1, 1, 4,    21, 1, 1, 4,  7),
        MIX_ENT(SOUND_MIXER_CD,          2, 1, 1, 4,     3, 1, 1, 4,  7),
        MIX_ENT(SOUND_MIXER_IMIX,        0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_ALTPCM,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_RECLEV,      0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_IGAIN,       0, 0, 0, 4,     1, 0, 0, 4,  8),
        MIX_ENT(SOUND_MIXER_OGAIN,       0, 0, 0, 0,     0, 0, 0, 0,  8),
        MIX_ENT(SOUND_MIXER_LINE1,       2, 1, 1, 4,     3, 1, 1, 4,  7),
        MIX_ENT(SOUND_MIXER_LINE2,       4, 1, 1, 4,     5, 1, 1, 4,  7),
        MIX_ENT(SOUND_MIXER_LINE3,      18, 1, 1, 4,    19, 1, 1, 4,  7)
};

static mixer_ents spro_mix_devices[32] = {
        MIX_ENT (SOUND_MIXER_VOLUME,    19, 0, 4, 4,                     19, 0, 0, 4,  8),
        MIX_ENT (SOUND_MIXER_BASS,       0, 0, 0, 0,                      0, 0, 0, 0,  8),
        MIX_ENT (SOUND_MIXER_TREBLE,     0, 0, 0, 0,                      0, 0, 0, 0,  8),
        MIX_ENT2(SOUND_MIXER_SYNTH,      4, 1, 1, 4, 23, 0, 3,  0, 0, 8,
                                         5, 1, 1, 4, 23, 0, 3, 0, 0, 8),
        MIX_ENT (SOUND_MIXER_PCM,        6, 1, 1, 4,                      7, 1, 1, 4,  8),
        MIX_ENT (SOUND_MIXER_SPEAKER,   18, 0, 3, 2,                      0, 0, 0, 0,  8),
        MIX_ENT2(SOUND_MIXER_LINE,      20, 0, 4, 4, 17, 1, 4, 16, 0, 2,
                                        20, 0, 0, 4, 17, 1, 3, 16, 0, 1),
        MIX_ENT2(SOUND_MIXER_MIC,       18, 0, 0, 3, 17, 1, 0, 16, 0, 0,
                                         0, 0, 0, 0,  0, 0, 0,  0, 0, 0),
        MIX_ENT2(SOUND_MIXER_CD,        21, 0, 4, 4, 17, 1, 2, 16, 0, 4,
                                        21, 0, 0, 4, 17, 1, 1, 16, 0, 3),
        MIX_ENT (SOUND_MIXER_IMIX,       0, 0, 0, 0,                      0, 0, 0, 0,  8),
        MIX_ENT (SOUND_MIXER_ALTPCM,     0, 0, 0, 0,                      0, 0, 0, 0,  8),
        MIX_ENT (SOUND_MIXER_RECLEV,     0, 0, 0, 0,                      0, 0, 0, 0,  8),
        MIX_ENT (SOUND_MIXER_IGAIN,      0, 0, 0, 0,                      0, 0, 0, 0,  8),
        MIX_ENT (SOUND_MIXER_OGAIN,     17, 1, 6, 1,                      0, 0, 0, 0,  8),
        /* This is external wavetable */
        MIX_ENT2(SOUND_MIXER_LINE1,     22, 0, 4, 4, 23, 1, 1, 23, 0, 4,
                                        22, 0, 0, 4, 23, 1, 0, 23, 0, 5),
};

static int default_mixer_levels[32] =
{
        0x3232,                 /* Master Volume */
        0x3232,                 /* Bass */
        0x3232,                 /* Treble */
        0x4b4b,                 /* FM */
        0x3232,                 /* PCM */
        0x1515,                 /* PC Speaker */
        0x2020,                 /* Ext Line */
        0x1010,                 /* Mic */
        0x4b4b,                 /* CD */
        0x0000,                 /* Recording monitor */
        0x4b4b,                 /* Second PCM */
        0x4b4b,                 /* Recording level */
        0x4b4b,                 /* Input gain */
        0x4b4b,                 /* Output gain */
        0x2020,                 /* Line1 */
        0x2020,                 /* Line2 */
        0x1515                  /* Line3 (usually line in)*/
};

#define LEFT_CHN        0
#define RIGHT_CHN       1

/*
 * Channel enable bits for ioctl(SOUND_MIXER_PRIVATE1)
 */

#ifndef AUDIO_SPEAKER
#define AUDIO_SPEAKER           0x01    /* Enable mono output */
#define AUDIO_HEADPHONE         0x02    /* Sparc only */
#define AUDIO_LINE_OUT          0x04    /* Sparc only */
#endif

/* [<][>][^][v][top][bottom][index][help] */

[funini.com] -> [kei@sodan] -> Kernel Reading