diff options
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 91b2e4689175..ff10a630da92 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2840,6 +2840,16 @@ static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol, return change; } +int snd_hda_max_pcm_ch_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 0xFFFFFFFF; + return 0; +} + int snd_hda_hdmi_decode_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { @@ -2850,6 +2860,15 @@ int snd_hda_hdmi_decode_info(struct snd_kcontrol *kcontrol, return 0; } +static int snd_hda_max_pcm_ch_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct hda_codec *codec = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = codec->max_pcm_channels; + return 0; +} + static int snd_hda_hdmi_decode_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { @@ -2894,6 +2913,12 @@ static struct snd_kcontrol_new dig_mixes[] = { .info = snd_hda_hdmi_decode_info, .get = snd_hda_hdmi_decode_get, }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "HDA Maximum PCM Channels", + .info = snd_hda_max_pcm_ch_info, + .get = snd_hda_max_pcm_ch_get, + }, { } /* end */ }; |