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authorTakashi Iwai <tiwai@suse.de>2009-12-08 12:52:47 +0100
committerTakashi Iwai <tiwai@suse.de>2009-12-08 12:52:47 +0100
commitd11f74c62fb4a1fefd39085570fb6dfa7b9ab2bb (patch)
treecbedcef6ffb162f9b8e054a983b20ad80f3ca5cd /sound
parent23033b2bce4361f2859ee0331f97c9056dae7091 (diff)
downloadblackbird-obmc-linux-d11f74c62fb4a1fefd39085570fb6dfa7b9ab2bb.tar.gz
blackbird-obmc-linux-d11f74c62fb4a1fefd39085570fb6dfa7b9ab2bb.zip
ALSA: hda - Exclude unusable ADCs for ALC88x
On Realtek codecs, a digital mic pin is connected often only to a single ADC. But the parser tries to set up all ADCs no matter whether the digital mic is available, and results in non-selectable input source. This patch adds a check of input-source availability of each ADC, and excludes ones that don't support all input sources. Reference: Novell bnc#561235 http://bugzilla.novell.com/show_bug.cgi?id=561235 Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/patch_realtek.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 0fbcbeef1418..2a96bc78964d 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -10021,10 +10021,12 @@ static int patch_alc882(struct hda_codec *codec)
spec->init_amp = ALC_INIT_DEFAULT; /* always initialize */
if (!spec->adc_nids && spec->input_mux) {
- int i;
+ int i, j;
spec->num_adc_nids = 0;
for (i = 0; i < ARRAY_SIZE(alc882_adc_nids); i++) {
+ const struct hda_input_mux *imux = spec->input_mux;
hda_nid_t cap;
+ hda_nid_t items[16];
hda_nid_t nid = alc882_adc_nids[i];
unsigned int wcap = get_wcaps(codec, nid);
/* get type */
@@ -10035,6 +10037,15 @@ static int patch_alc882(struct hda_codec *codec)
err = snd_hda_get_connections(codec, nid, &cap, 1);
if (err < 0)
continue;
+ err = snd_hda_get_connections(codec, cap, items,
+ ARRAY_SIZE(items));
+ if (err < 0)
+ continue;
+ for (j = 0; j < imux->num_items; j++)
+ if (imux->items[j].index >= err)
+ break;
+ if (j < imux->num_items)
+ continue;
spec->private_capsrc_nids[spec->num_adc_nids] = cap;
spec->num_adc_nids++;
}
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