ALSA: hda - Add generic pincfg initialization

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>

1 files changed, 15 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 09a332ada0c6..6d01a8058f0a 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -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
  */