[ALSA] Allow more than 2 channel modes
HDA Codec driver
Allow 'Channel Mode' control to have more than 2 modes.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 8a10482..9f12d1f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -301,13 +301,14 @@
{
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 @@
{
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 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 @@
.info = alc880_ch_mode_info,
.get = alc880_ch_mode_get,
.put = alc880_ch_mode_put,
+ .private_value = ARRAY_SIZE(alc880_test_modes),
},
{ } /* end */
};