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authorTakashi Iwai <tiwai@suse.de>2006-03-23 17:06:28 +0100
committerJaroslav Kysela <perex@suse.cz>2006-03-31 17:58:56 +0200
commitc960a03beef8e1bdd26b1658d0ce87902f4a08f2 (patch)
tree135245b8b880e61fd38c8467a37cab38a55d059c
parentd681518a56d25d21d73a421174d189242adc68c7 (diff)
[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>
-rw-r--r--sound/pci/hda/patch_sigmatel.c35
1 files changed, 29 insertions, 6 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index b56ca4019392..e5fdb64eb02c 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -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,