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ALSA: hda - Enable surround speakers (when line out is also present)

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In the case where we have both line out and more than stereo speakers,
the speaker DACs will end up in extra_out_nid.
In fact, AFAIU, speakers are the only ones that can end up in extra_out_nid,
and if we have several of those, they should be surround outputs
rather than copy front.

BugLink: https://bugs.launchpad.net/bugs/1236965
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
David Henningsson 2013-10-10 09:01:25 +02:00 • committed by Takashi Iwai
parent 6b5a7c66ce
commit cd4035e814
1 changed files with 14 additions and 5 deletions
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19
sound/pci/hda/hda_codec.c
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@ -5395,11 +5395,6 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
snd_hda_codec_setup_stream(codec,
mout->hp_out_nid[i],
stream_tag, 0, format);
for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
if (!mout->no_share_stream && mout->extra_out_nid[i])
snd_hda_codec_setup_stream(codec,
mout->extra_out_nid[i],
stream_tag, 0, format);
/* surrounds */
for (i = 1; i < mout->num_dacs; i++) {
@ -5410,6 +5405,20 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
0, format);
}
/* extra surrounds */
for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) {
int ch = 0;
if (!mout->extra_out_nid[i])
break;
if (chs >= (i + 1) * 2)
ch = i * 2;
else if (!mout->no_share_stream)
break;
snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i],
stream_tag, ch, format);
}
return 0;
}
EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_prepare);