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ALSA: hda - proc - show which I/O NID is associated to PCM device

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Output something like:

Node 0x02 [Audio Output] wcaps 0x11: Stereo
  Device: name="ALC888 Analog", type="Audio", device=0, substream=0
  Converter: stream=0, channel=0
  ...

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jaroslav Kysela 2009-11-10 14:53:02 +01:00 committed by Takashi Iwai
parent fb8d1a344d
commit e330323520
3 changed files with 21 additions and 5 deletions
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9
sound/pci/hda/hda_codec.c
View file

@ -2877,14 +2877,15 @@ static int set_pcm_default_values(struct hda_codec *codec,
return 0;
}
const char *snd_hda_pcm_type_name[HDA_PCM_NTYPES] = {
"Audio", "SPDIF", "HDMI", "Modem"
};
/*
* get the empty PCM device number to assign
*/
static int get_empty_pcm_device(struct hda_bus *bus, int type)
{
static const char *dev_name[HDA_PCM_NTYPES] = {
"Audio", "SPDIF", "HDMI", "Modem"
};
/* audio device indices; not linear to keep compatibility */
static int audio_idx[HDA_PCM_NTYPES][5] = {
[HDA_PCM_TYPE_AUDIO] = { 0, 2, 4, 5, -1 },
@ -2903,7 +2904,7 @@ static int get_empty_pcm_device(struct hda_bus *bus, int type)
if (!test_and_set_bit(audio_idx[type][i], bus->pcm_dev_bits))
return audio_idx[type][i];
snd_printk(KERN_WARNING "Too many %s devices\n", dev_name[type]);
snd_printk(KERN_WARNING "Too many %s devices\n", snd_hda_pcm_type_name[type]);
return -EAGAIN;
}

1
sound/pci/hda/hda_codec.h
View file

@ -894,6 +894,7 @@ int snd_hda_codec_build_controls(struct hda_codec *codec);
/*
* PCM
*/
extern const char *snd_hda_pcm_type_name[];
int snd_hda_build_pcms(struct hda_bus *bus);
int snd_hda_codec_build_pcms(struct hda_codec *codec);
void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,

16
sound/pci/hda/hda_proc.c
View file

@ -309,7 +309,21 @@ static void print_audio_io(struct snd_info_buffer *buffer,
struct hda_codec *codec, hda_nid_t nid,
unsigned int wid_type)
{
int conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
int pcm, conv;
for (pcm = 0; pcm < codec->num_pcms; pcm++) {
int type;
struct hda_pcm *cpcm = &codec->pcm_info[pcm];
for (type = 0; type < 2; type++) {
if (cpcm->stream[type].nid != nid || cpcm->pcm == NULL)
continue;
snd_iprintf(buffer, " Device: name=\"%s\", type=\"%s\", device=%i, substream=%i\n",
cpcm->name,
snd_hda_pcm_type_name[cpcm->pcm_type],
cpcm->pcm->device,
cpcm->pcm->streams[type].substream->number);
}
}
conv = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0);
snd_iprintf(buffer,
" Converter: stream=%d, channel=%d\n",
(conv & AC_CONV_STREAM) >> AC_CONV_STREAM_SHIFT,