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ALSA: hda - Add generic pincfg initialization

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Added the generic pincfg cache and save/restore functions.
Also introduced the pin-overriding via hwdep sysfs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
2009-02-20 14:11:16 +01:00
parent d2f57cd54a
commit 3be141494a
3 changed files with 223 additions and 9 deletions
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15
sound/pci/hda/hda_codec.h
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@@ -778,11 +778,14 @@ struct hda_codec {
unsigned short spdif_ctls; /* SPDIF control bits */
unsigned int spdif_in_enable; /* SPDIF input enable? */
hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
struct snd_array init_pins; /* initial (BIOS) pin configurations */
struct snd_array cur_pins; /* current pin configurations */
#ifdef CONFIG_SND_HDA_HWDEP
struct snd_hwdep *hwdep; /* assigned hwdep device */
struct snd_array init_verbs; /* additional init verbs */
struct snd_array hints; /* additional hints */
struct snd_array override_pins; /* default pin configs to override */
#endif
/* misc flags */
@@ -855,6 +858,18 @@ void snd_hda_codec_resume_cache(struct hda_codec *codec);
#define snd_hda_sequence_write_cache snd_hda_sequence_write
#endif
/* the struct for codec->pin_configs */
struct hda_pincfg {
hda_nid_t nid;
unsigned int cfg;
};
unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid,
unsigned int cfg);
int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
hda_nid_t nid, unsigned int cfg); /* for hwdep */
/*
* Mixer
*/