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Merge branch 'topic/tlv-chmap' into for-next

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This is a merge of a topic branch containing the support for the new
channel map API using control elements.
This commit is contained in:
Takashi Iwai
2012-09-15 16:32:31 +02:00
parent 62cbde1868 5efbc2610a
commit e5d6db8e60
22 changed files with 1091 additions and 36 deletions
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36
sound/pci/hda/hda_codec.c
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@@ -3688,6 +3688,36 @@ int /*__devinit*/ snd_hda_build_controls(struct hda_bus *bus)
}
EXPORT_SYMBOL_HDA(snd_hda_build_controls);
/*
* add standard channel maps if not specified
*/
static int add_std_chmaps(struct hda_codec *codec)
{
int i, str, err;
for (i = 0; i < codec->num_pcms; i++) {
for (str = 0; str < 2; str++) {
struct snd_pcm *pcm = codec->pcm_info[i].pcm;
struct hda_pcm_stream *hinfo =
&codec->pcm_info[i].stream[str];
struct snd_pcm_chmap *chmap;
if (codec->pcm_info[i].own_chmap)
continue;
if (!pcm || !hinfo->substreams)
continue;
err = snd_pcm_add_chmap_ctls(pcm, str,
snd_pcm_std_chmaps,
hinfo->channels_max,
0, &chmap);
if (err < 0)
return err;
chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
}
}
return 0;
}
int snd_hda_codec_build_controls(struct hda_codec *codec)
{
int err = 0;
@@ -3699,6 +3729,12 @@ int snd_hda_codec_build_controls(struct hda_codec *codec)
err = codec->patch_ops.build_controls(codec);
if (err < 0)
return err;
/* we create chmaps here instead of build_pcms */
err = add_std_chmaps(codec);
if (err < 0)
return err;
snd_hda_jack_report_sync(codec); /* call at the last init point */
return 0;
}