UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

[ALSA] hda-codec - Fix VREF level of Mic inputs on STAC92xx codecs 

Fixed VREF level of Mic inputs on STAC92xx codecs (ALSA bug#1953).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2006-03-23 17:06:28 +01:00 committed by Jaroslav Kysela
parent d681518a56
commit c960a03bee
1 changed files with 29 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
sound/pci/hda/patch_sigmatel.c
View File

@ -534,6 +534,22 @@ static int stac92xx_build_pcms(struct hda_codec *codec)
return 0;
}
static unsigned int stac92xx_get_vref(struct hda_codec *codec, hda_nid_t nid)
{
unsigned int pincap = snd_hda_param_read(codec, nid,
AC_PAR_PIN_CAP);
pincap = (pincap & AC_PINCAP_VREF) >> AC_PINCAP_VREF_SHIFT;
if (pincap & AC_PINCAP_VREF_100)
return AC_PINCTL_VREF_100;
if (pincap & AC_PINCAP_VREF_80)
return AC_PINCTL_VREF_80;
if (pincap & AC_PINCAP_VREF_50)
return AC_PINCTL_VREF_50;
if (pincap & AC_PINCAP_VREF_GRD)
return AC_PINCTL_VREF_GRD;
return 0;
}
static void stac92xx_auto_set_pinctl(struct hda_codec *codec, hda_nid_t nid, int pin_type)
{
@ -571,9 +587,12 @@ static int stac92xx_io_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
if (val)
stac92xx_auto_set_pinctl(codec, nid, AC_PINCTL_OUT_EN);
else
stac92xx_auto_set_pinctl(codec, nid, AC_PINCTL_IN_EN);
else {
unsigned int pinctl = AC_PINCTL_IN_EN;
if (io_idx) /* set VREF for mic */
pinctl |= stac92xx_get_vref(codec, nid);
stac92xx_auto_set_pinctl(codec, nid, pinctl);
}
return 1;
}
@ -951,9 +970,13 @@ static int stac92xx_init(struct hda_codec *codec)
stac92xx_auto_init_hp_out(codec);
}
for (i = 0; i < AUTO_PIN_LAST; i++) {
if (cfg->input_pins[i])
stac92xx_auto_set_pinctl(codec, cfg->input_pins[i],
AC_PINCTL_IN_EN);
hda_nid_t nid = cfg->input_pins[i];
if (nid) {
unsigned int pinctl = AC_PINCTL_IN_EN;
if (i == AUTO_PIN_MIC || i == AUTO_PIN_FRONT_MIC)
pinctl |= stac92xx_get_vref(codec, nid);
stac92xx_auto_set_pinctl(codec, nid, pinctl);
}
}
if (cfg->dig_out_pin)
stac92xx_auto_set_pinctl(codec, cfg->dig_out_pin,