[ALSA] hda-codec - Add channel-mode helper

[thirdparty/linux.git] / sound / pci / hda / hda_local.h

diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index f51a56f813c8f47e348a76ea9383148598e6b716..05a88fb1d65248a7aaa2fdd5d84eb1e04a46a669 100644 (file)
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -102,6 +102,23 @@ int snd_hda_input_mux_put(struct hda_codec *codec, const struct hda_input_mux *i
                          snd_ctl_elem_value_t *ucontrol, hda_nid_t nid,
                          unsigned int *cur_val);
 
+ /*
+ * Channel mode helper
+ */
+struct hda_channel_mode {
+       int channels;
+       const struct hda_verb *sequence;
+};
+
+int snd_hda_ch_mode_info(struct hda_codec *codec, snd_ctl_elem_info_t *uinfo,
+                        const struct hda_channel_mode *chmode, int num_chmodes);
+int snd_hda_ch_mode_get(struct hda_codec *codec, snd_ctl_elem_value_t *ucontrol,
+                       const struct hda_channel_mode *chmode, int num_chmodes,
+                       int max_channels);
+int snd_hda_ch_mode_put(struct hda_codec *codec, snd_ctl_elem_value_t *ucontrol,
+                       const struct hda_channel_mode *chmode, int num_chmodes,
+                       int *max_channelsp);
+
 /*
  * Multi-channel / digital-out PCM helper
  */