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authorTakashi Iwai <tiwai@suse.de>2009-03-12 16:45:01 +0100
committerTakashi Iwai <tiwai@suse.de>2009-03-12 16:45:01 +0100
commit3b7523fc828e41b2988feb400704e01b67859d78 (patch)
treeb050535f3d972f2d6584d2ab1d5a8094779d49b9 /sound/pci/hda
parent5d75bc557859805f00eeddb09d7cc8ffc7e5334e (diff)
ALSA: hda - Add comments for the previous fix for conexant codecs
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda')
-rw-r--r--sound/pci/hda/patch_conexant.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 6cb184e9c2f..bc016fade19 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -1196,6 +1196,10 @@ static int cxt5047_hp_master_sw_put(struct snd_kcontrol *kcontrol,
* the headphone jack
*/
bits = (!spec->hp_present && spec->cur_eapd) ? 0 : HDA_AMP_MUTE;
+ /* NOTE: Conexat codec needs the index for *OUTPUT* amp of
+ * pin widgets unlike other codecs. In this case, we need to
+ * set index 0x01 for the volume from the mixer amp 0x19.
+ */
snd_hda_codec_amp_stereo(codec, 0x1d, HDA_OUTPUT, 0x01,
HDA_AMP_MUTE, bits);
bits = spec->cur_eapd ? 0 : HDA_AMP_MUTE;
@@ -1214,6 +1218,7 @@ static void cxt5047_hp_automute(struct hda_codec *codec)
AC_VERB_GET_PIN_SENSE, 0) & 0x80000000;
bits = (spec->hp_present || !spec->cur_eapd) ? HDA_AMP_MUTE : 0;
+ /* See the note in cxt5047_hp_master_sw_put */
snd_hda_codec_amp_stereo(codec, 0x1d, HDA_OUTPUT, 0x01,
HDA_AMP_MUTE, bits);
}
@@ -1276,6 +1281,7 @@ static struct snd_kcontrol_new cxt5047_base_mixers[] = {
};
static struct snd_kcontrol_new cxt5047_hp_spk_mixers[] = {
+ /* See the note in cxt5047_hp_master_sw_put */
HDA_CODEC_VOLUME("Speaker Playback Volume", 0x1d, 0x01, HDA_OUTPUT),
HDA_CODEC_VOLUME("Headphone Playback Volume", 0x13, 0x00, HDA_OUTPUT),
{}