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ALSA: hda - Add infrastructure for dynamic stream allocation

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Added the infrastructure for dynamic stream allocation on HD-audio.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
2008-07-30 15:01:44 +02:00
parent 687cb98e89
commit 176d5335fe
3 changed files with 105 additions and 95 deletions
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5
sound/pci/hda/hda_codec.h
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@ -542,6 +542,8 @@ struct hda_bus_ops {
unsigned int (*get_response)(struct hda_codec *codec);
/* free the private data */
void (*private_free)(struct hda_bus *);
/* attach a PCM stream */
int (*attach_pcm)(struct hda_codec *codec, struct hda_pcm *pcm);
#ifdef CONFIG_SND_HDA_POWER_SAVE
/* notify power-up/down from codec to controller */
void (*pm_notify)(struct hda_codec *codec);
@ -680,7 +682,8 @@ struct hda_pcm {
char *name;
struct hda_pcm_stream stream[2];
unsigned int pcm_type; /* HDA_PCM_TYPE_XXX */
int device; /* assigned device number */
int device; /* device number to assign */
struct snd_pcm *pcm; /* assigned PCM instance */
};
/* codec information */