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ALSA: hda - Apply a proper chmap for built-in 2.1 speakers 

When 2.1 speakers are detected, use the corresponding channel map
instead of the standard map with front+rear surrounds.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2012-11-08 17:12:10 +01:00
parent f37bc7a88d
commit ee81abb623
7 changed files with 40 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
sound/pci/hda/hda_codec.c
View File

@ -3747,13 +3747,14 @@ static int add_std_chmaps(struct hda_codec *codec)
struct hda_pcm_stream *hinfo =
&codec->pcm_info[i].stream[str];
struct snd_pcm_chmap *chmap;
const struct snd_pcm_chmap_elem *elem;
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,
elem = hinfo->chmap ? hinfo->chmap : snd_pcm_std_chmaps;
err = snd_pcm_add_chmap_ctls(pcm, str, elem,
hinfo->channels_max,
0, &chmap);
if (err < 0)
@ -3764,6 +3765,19 @@ static int add_std_chmaps(struct hda_codec *codec)
return 0;
}
/* default channel maps for 2.1 speakers;
* since HD-audio supports only stereo, odd number channels are omitted
*/
const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[] = {
{ .channels = 2,
.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
{ .channels = 4,
.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
SNDRV_CHMAP_LFE, SNDRV_CHMAP_LFE } },
{ }
};
EXPORT_SYMBOL_GPL(snd_pcm_2_1_chmaps);
int snd_hda_codec_build_controls(struct hda_codec *codec)
{
int err = 0;

3
sound/pci/hda/hda_codec.h
View File

@ -757,6 +757,7 @@ struct hda_pcm_stream {
u32 rates; /* supported rates */
u64 formats; /* supported formats (SNDRV_PCM_FMTBIT_) */
unsigned int maxbps; /* supported max. bit per sample */
const struct snd_pcm_chmap_elem *chmap; /* chmap to override */
struct hda_pcm_ops ops;
};
@ -1026,6 +1027,8 @@ unsigned int snd_hda_calc_stream_format(unsigned int rate,
int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
unsigned int format);
extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];
/*
* Misc
*/

3
sound/pci/hda/patch_cirrus.c
View File

@ -344,6 +344,9 @@ static int cs_build_pcms(struct hda_codec *codec)
info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->dac_nid[0];
info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max =
spec->multiout.max_channels;
if (spec->speaker_2_1)
info->stream[SNDRV_PCM_STREAM_PLAYBACK].chmap =
snd_pcm_2_1_chmaps;
info->stream[SNDRV_PCM_STREAM_CAPTURE] = cs_pcm_analog_capture;
info->stream[SNDRV_PCM_STREAM_CAPTURE].nid =
spec->adc_nid[spec->cur_input];

5
sound/pci/hda/patch_conexant.c
View File

@ -337,6 +337,8 @@ static const struct hda_pcm_stream cx5051_pcm_analog_capture = {
},
};
static bool is_2_1_speaker(struct conexant_spec *spec);
static int conexant_build_pcms(struct hda_codec *codec)
{
struct conexant_spec *spec = codec->spec;
@ -351,6 +353,9 @@ static int conexant_build_pcms(struct hda_codec *codec)
spec->multiout.max_channels;
info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid =
spec->multiout.dac_nids[0];
if (is_2_1_speaker(spec))
info->stream[SNDRV_PCM_STREAM_PLAYBACK].chmap =
snd_pcm_2_1_chmaps;
if (spec->capture_stream)
info->stream[SNDRV_PCM_STREAM_CAPTURE] = *spec->capture_stream;
else {

4
sound/pci/hda/patch_realtek.c
View File

@ -2260,6 +2260,10 @@ static int alc_build_pcms(struct hda_codec *codec)
info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->multiout.dac_nids[0];
info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max =
spec->multiout.max_channels;
if (spec->autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT &&
spec->autocfg.line_outs == 2)
info->stream[SNDRV_PCM_STREAM_PLAYBACK].chmap =
snd_pcm_2_1_chmaps;
}
if (spec->adc_nids) {
p = spec->stream_analog_capture;

5
sound/pci/hda/patch_sigmatel.c
View File

@ -2516,6 +2516,11 @@ static int stac92xx_build_pcms(struct hda_codec *codec)
info->stream[SNDRV_PCM_STREAM_PLAYBACK] = stac92xx_pcm_analog_playback;
info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid =
spec->multiout.dac_nids[0];
if (spec->autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT &&
spec->autocfg.line_outs == 2)
info->stream[SNDRV_PCM_STREAM_PLAYBACK].chmap =
snd_pcm_2_1_chmaps;
info->stream[SNDRV_PCM_STREAM_CAPTURE] = stac92xx_pcm_analog_capture;
info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = spec->adc_nids[0];
info->stream[SNDRV_PCM_STREAM_CAPTURE].substreams = spec->num_adcs;

4
sound/pci/hda/patch_via.c
View File

@ -1555,6 +1555,10 @@ static int via_build_pcms(struct hda_codec *codec)
spec->multiout.dac_nids[0];
info->stream[SNDRV_PCM_STREAM_PLAYBACK].channels_max =
spec->multiout.max_channels;
if (spec->autocfg.line_out_type == AUTO_PIN_SPEAKER_OUT
&& spec->autocfg.line_outs == 2)
info->stream[SNDRV_PCM_STREAM_PLAYBACK].chmap =
snd_pcm_2_1_chmaps;
}
if (!spec->stream_analog_capture) {