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[ALSA] Allow more than 2 channel modes

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HDA Codec driver
Allow 'Channel Mode' control to have more than 2 modes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-05-13 17:18:42 +02:00 committed by Jaroslav Kysela
parent 9bc533f58e
commit fd2c326de8
1 changed files with 16 additions and 6 deletions
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22
sound/pci/hda/patch_realtek.c
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@ -301,13 +301,14 @@ static int alc880_ch_mode_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *ui
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
struct alc_spec *spec = codec->spec;
int items = kcontrol->private_value ? (int)kcontrol->private_value : 2;
snd_assert(spec->channel_mode, return -ENXIO);
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = 2;
if (uinfo->value.enumerated.item >= 2)
uinfo->value.enumerated.item = 1;
uinfo->value.enumerated.items = items;
if (uinfo->value.enumerated.item >= items)
uinfo->value.enumerated.item = items - 1;
sprintf(uinfo->value.enumerated.name, "%dch",
spec->channel_mode[uinfo->value.enumerated.item].channels);
return 0;
@ -317,10 +318,16 @@ static int alc880_ch_mode_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *uc
{
struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
struct alc_spec *spec = codec->spec;
int items = kcontrol->private_value ? (int)kcontrol->private_value : 2;
int i;
snd_assert(spec->channel_mode, return -ENXIO);
ucontrol->value.enumerated.item[0] =
(spec->multiout.max_channels == spec->channel_mode[0].channels) ? 0 : 1;
for (i = 0; i < items; i++) {
if (spec->multiout.max_channels == spec->channel_mode[i].channels) {
ucontrol->value.enumerated.item[0] = i;
break;
}
}
return 0;
}
@ -1036,9 +1043,11 @@ static struct hda_input_mux alc880_test_capture_source = {
},
};
static struct alc_channel_mode alc880_test_modes[2] = {
static struct alc_channel_mode alc880_test_modes[4] = {
{ 2, NULL },
{ 4, NULL },
{ 6, NULL },
{ 8, NULL },
};
static int alc_test_pin_ctl_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
@ -1211,6 +1220,7 @@ static snd_kcontrol_new_t alc880_test_mixer[] = {
.info = alc880_ch_mode_info,
.get = alc880_ch_mode_get,
.put = alc880_ch_mode_put,
.private_value = ARRAY_SIZE(alc880_test_modes),
},
{ } /* end */
};