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ALSA: hda - Add mute LED support for HP laptop with ALC269

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Some HP laptops have a mute LED that is controlled over the unused
MIC2 VREF pin.  Implement the LED updater like patch_sigmatel.c for this
model.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2010-03-30 18:00:59 +02:00
parent c35c9d5d3f
commit ad35879aa1
1 changed files with 38 additions and 0 deletions
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38
sound/pci/hda/patch_realtek.c
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@ -3467,6 +3467,10 @@ static int alc_init(struct hda_codec *codec)
if (spec->init_hook)
spec->init_hook(codec);
#ifdef CONFIG_SND_HDA_POWER_SAVE
if (codec->patch_ops.check_power_status)
codec->patch_ops.check_power_status(codec, 0x01);
#endif
return 0;
}
@ -3827,6 +3831,10 @@ static int alc_resume(struct hda_codec *codec)
codec->patch_ops.init(codec);
snd_hda_codec_resume_amp(codec);
snd_hda_codec_resume_cache(codec);
#ifdef CONFIG_SND_HDA_POWER_SAVE
if (codec->patch_ops.check_power_status)
codec->patch_ops.check_power_status(codec, 0x01);
#endif
return 0;
}
#endif
@ -13983,6 +13991,34 @@ static struct hda_pcm_stream alc269_44k_pcm_analog_capture = {
/* NID is set in alc_build_pcms */
};
#ifdef CONFIG_SND_HDA_POWER_SAVE
static int alc269_mic2_for_mute_led(struct hda_codec *codec)
{
switch (codec->subsystem_id) {
case 0x103c1586:
return 1;
}
return 0;
}
static int alc269_mic2_mute_check_ps(struct hda_codec *codec, hda_nid_t nid)
{
/* update mute-LED according to the speaker mute state */
if (nid == 0x01 || nid == 0x14) {
int pinval;
if (snd_hda_codec_amp_read(codec, 0x14, 0, HDA_OUTPUT, 0) &
HDA_AMP_MUTE)
pinval = 0x24;
else
pinval = 0x20;
/* mic2 vref pin is used for mute LED control */
snd_hda_codec_write(codec, 0x19, 0,
AC_VERB_SET_PIN_WIDGET_CONTROL, pinval);
}
return alc_check_power_status(codec, nid);
}
#endif /* CONFIG_SND_HDA_POWER_SAVE */
/*
* BIOS auto configuration
*/
@ -14330,6 +14366,8 @@ static int patch_alc269(struct hda_codec *codec)
#ifdef CONFIG_SND_HDA_POWER_SAVE
if (!spec->loopback.amplist)
spec->loopback.amplist = alc269_loopbacks;
if (alc269_mic2_for_mute_led(codec))
codec->patch_ops.check_power_status = alc269_mic2_mute_check_ps;
#endif
return 0;