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/*
* drivers/sound/vidc_mixer.c
*
* Mixer routines for VIDC
*
* Copyright (C) 1997 Russell King <rmk@arm.uk.linux.org>
*/
#include "sound_config.h"
#include "vidc.h"
int vidc_volume;
static int vidc_get_volume(void)
{
return vidc_volume;
}
static int vidc_set_volume(int newvol)
{
vidc_volume = newvol;
/* printk ("vidc_set_volume: %X\n", newvol); */
return newvol;
}
static int vidc_default_mixer_ioctl(int dev, unsigned int cmd, caddr_t arg)
{
int ret;
switch (cmd)
{
case SOUND_MIXER_READ_VOLUME:
ret = vidc_get_volume();
break;
case SOUND_MIXER_WRITE_VOLUME:
if (get_user(ret, (int *) arg))
return -EINVAL;
ret = vidc_set_volume(ret);
break;
case SOUND_MIXER_READ_BASS:
case SOUND_MIXER_WRITE_BASS:
case SOUND_MIXER_READ_TREBLE:
case SOUND_MIXER_WRITE_TREBLE:
ret = 50;
break;
case SOUND_MIXER_READ_SYNTH:
ret = vidc_synth_get_volume();
break;
case SOUND_MIXER_WRITE_SYNTH:
if (get_user(ret, (int *) arg))
return -EINVAL;
ret = vidc_synth_set_volume(ret);
break;
case SOUND_MIXER_READ_PCM:
ret = vidc_audio_get_volume();
break;
case SOUND_MIXER_WRITE_PCM:
if (get_user(ret, (int *) arg))
return -EINVAL;
ret = vidc_audio_set_volume(ret);
break;
case SOUND_MIXER_READ_SPEAKER:
ret = 100;
break;
case SOUND_MIXER_WRITE_SPEAKER:
ret = 100;
break;
case SOUND_MIXER_READ_LINE:
case SOUND_MIXER_WRITE_LINE:
case SOUND_MIXER_READ_MIC:
case SOUND_MIXER_WRITE_MIC:
ret = 0;
break;
case SOUND_MIXER_READ_CD:
case SOUND_MIXER_WRITE_CD:
ret = 100 | (100 << 8);
break;
case SOUND_MIXER_READ_IMIX:
case SOUND_MIXER_WRITE_IMIX:
case SOUND_MIXER_READ_ALTPCM:
case SOUND_MIXER_WRITE_ALTPCM:
case SOUND_MIXER_READ_LINE1:
case SOUND_MIXER_WRITE_LINE1:
case SOUND_MIXER_READ_LINE2:
case SOUND_MIXER_WRITE_LINE2:
case SOUND_MIXER_READ_LINE3:
case SOUND_MIXER_WRITE_LINE3:
ret = 0;
break;
case SOUND_MIXER_READ_RECSRC:
ret = 0;
break;
case SOUND_MIXER_WRITE_RECSRC:
return -EINVAL;
break;
case SOUND_MIXER_READ_DEVMASK:
ret = SOUND_MASK_VOLUME | SOUND_MASK_PCM | SOUND_MASK_SYNTH;
break;
case SOUND_MIXER_READ_RECMASK:
ret = 0;
break;
case SOUND_MIXER_READ_STEREODEVS:
ret = SOUND_MASK_VOLUME | SOUND_MASK_PCM | SOUND_MASK_SYNTH;
break;
case SOUND_MIXER_READ_CAPS:
ret = 0;
break;
case SOUND_MIXER_READ_MUTE:
return -EINVAL;
break;
default:
return -EINVAL;
break;
}
return put_user(ret, (int *) arg);
}
static struct mixer_operations vidc_mixer_operations = {
"VIDC",
"VIDCsound",
vidc_default_mixer_ioctl /* ioctl */
};
void vidc_mixer_init(struct address_info *hw_config)
{
int vidc_mixer = sound_alloc_mixerdev();
vidc_volume = 100 | (100 << 8);
if (num_mixers < MAX_MIXER_DEV)
mixer_devs[vidc_mixer] = &vidc_mixer_operations;
}
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