diff options
| author | Matthew Ranostay <mranostay@embeddedalley.com> | 2008-01-30 14:58:38 +0100 |
|---|---|---|
| committer | Mercurial server <hg@alsa0.alsa-project.org> | 2008-01-31 17:33:37 +0100 |
| commit | cace16f174d971a80f81e68ed04f1124a50dd800 (patch) | |
| tree | e1be8cb18b10e985c28df08302fd652efcfbefaa /sound/pci | |
| parent | 493b4acb9ed3193b19d45d62e0e5740d20f47adc (diff) | |
| download | lwn-cace16f174d971a80f81e68ed04f1124a50dd800.tar.gz lwn-cace16f174d971a80f81e68ed04f1124a50dd800.zip | |
[ALSA] hda: fix Mic in as output
Some laptop has an internal analog microphone that is 'fixed'.
This patch prevents creating a 'Mic In as Output' switch for
ports that can't be outputs.
Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/patch_sigmatel.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 7c8cd59852ec..caf48edaa921 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -2283,15 +2283,23 @@ static int stac92xx_auto_create_multi_out_ctls(struct hda_codec *codec, } if (spec->mic_switch) { + unsigned int def_conf; nid = cfg->input_pins[AUTO_PIN_MIC]; - pincap = snd_hda_param_read(codec, nid, - AC_PAR_PIN_CAP); - if (pincap & AC_PINCAP_OUT) { - err = stac92xx_add_control(spec, - STAC_CTL_WIDGET_IO_SWITCH, - "Mic as Output Switch", (nid << 8) | 1); - if (err < 0) - return err; + def_conf = snd_hda_codec_read(codec, nid, 0, + AC_VERB_GET_CONFIG_DEFAULT, 0); + + /* some laptops have an internal analog microphone + * which can't be used as a output */ + if (get_defcfg_connect(def_conf) != AC_JACK_PORT_FIXED) { + pincap = snd_hda_param_read(codec, nid, + AC_PAR_PIN_CAP); + if (pincap & AC_PINCAP_OUT) { + err = stac92xx_add_control(spec, + STAC_CTL_WIDGET_IO_SWITCH, + "Mic as Output Switch", (nid << 8) | 1); + if (err < 0) + return err; + } } } |