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>
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@ -10021,10 +10021,12 @@ static int patch_alc882(struct hda_codec *codec)
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spec->init_amp = ALC_INIT_DEFAULT; /* always initialize */
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if (!spec->adc_nids && spec->input_mux) {
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int i;
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int i, j;
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spec->num_adc_nids = 0;
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for (i = 0; i < ARRAY_SIZE(alc882_adc_nids); i++) {
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const struct hda_input_mux *imux = spec->input_mux;
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hda_nid_t cap;
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hda_nid_t items[16];
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hda_nid_t nid = alc882_adc_nids[i];
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unsigned int wcap = get_wcaps(codec, nid);
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/* get type */
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@ -10035,6 +10037,15 @@ static int patch_alc882(struct hda_codec *codec)
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err = snd_hda_get_connections(codec, nid, &cap, 1);
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if (err < 0)
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continue;
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err = snd_hda_get_connections(codec, cap, items,
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ARRAY_SIZE(items));
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if (err < 0)
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continue;
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for (j = 0; j < imux->num_items; j++)
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if (imux->items[j].index >= err)
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break;
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if (j < imux->num_items)
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continue;
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spec->private_capsrc_nids[spec->num_adc_nids] = cap;
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spec->num_adc_nids++;
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}
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