openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

ALSA: hda - Fix digita/analog mic auto-switching with IDT codecs 

When the auto-mic switching between an analog and a digital mic is
needed with IDT codecs, the current driver doesn't reset the connection
of the digital mux.

This patch fixes the behavior by checking both mux connections properly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2009-10-01 16:38:11 +02:00
parent 3db6c037c6
commit 02d3332285
1 changed files with 14 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
sound/pci/hda/patch_sigmatel.c
View File

@ -182,8 +182,8 @@ struct sigmatel_jack {
struct sigmatel_mic_route {
hda_nid_t pin;
unsigned char mux_idx;
unsigned char dmux_idx;
signed char mux_idx;
signed char dmux_idx;
};
struct sigmatel_spec {
@ -3469,18 +3469,26 @@ static int set_mic_route(struct hda_codec *codec,
break;
if (i <= AUTO_PIN_FRONT_MIC) {
/* analog pin */
mic->dmux_idx = 0;
i = get_connection_index(codec, spec->mux_nids[0], pin);
if (i < 0)
return -1;
mic->mux_idx = i;
mic->dmux_idx = -1;
if (spec->dmux_nids)
mic->dmux_idx = get_connection_index(codec,
spec->dmux_nids[0],
spec->mux_nids[0]);
} else if (spec->dmux_nids) {
/* digital pin */
mic->mux_idx = 0;
i = get_connection_index(codec, spec->dmux_nids[0], pin);
if (i < 0)
return -1;
mic->dmux_idx = i;
mic->mux_idx = -1;
if (spec->mux_nids)
mic->mux_idx = get_connection_index(codec,
spec->mux_nids[0],
spec->dmux_nids[0]);
}
return 0;
}
@ -4557,11 +4565,11 @@ static void stac92xx_mic_detect(struct hda_codec *codec)
mic = &spec->ext_mic;
else
mic = &spec->int_mic;
if (mic->dmux_idx)
if (mic->dmux_idx >= 0)
snd_hda_codec_write_cache(codec, spec->dmux_nids[0], 0,
AC_VERB_SET_CONNECT_SEL,
mic->dmux_idx);
else
if (mic->mux_idx >= 0)
snd_hda_codec_write_cache(codec, spec->mux_nids[0], 0,
AC_VERB_SET_CONNECT_SEL,
mic->mux_idx);