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| author | Takashi Iwai <tiwai@suse.de> | 2006-03-23 17:06:28 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-03-31 17:58:56 +0200 |
| commit | c960a03beef8e1bdd26b1658d0ce87902f4a08f2 (patch) | |
| tree | 135245b8b880e61fd38c8467a37cab38a55d059c /sound/pci | |
| parent | [ALSA] Add support of LG LW20 laptop (diff) | |
| download | linux-c960a03beef8e1bdd26b1658d0ce87902f4a08f2.tar.xz linux-c960a03beef8e1bdd26b1658d0ce87902f4a08f2.zip | |
[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>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/patch_sigmatel.c | 35 |
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, |