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authorDavid Henningsson <david.henningsson@canonical.com>2012-09-25 11:30:59 +0200
committerTakashi Iwai <tiwai@suse.de>2012-10-06 16:43:31 +0200
commit954df2a9686cebbb9cc4067697b370aa9ce77d4a (patch)
treec80b9b5959d14637b3061934c15b348449f0e79b /sound
parent0fd0ba5f9e8ebae66afded580f5f34936f740ac7 (diff)
ALSA: hda - make a generic unsol event handler
Moving towards less duplication of code between codecs - this patch takes some of the common code of unsol event handling and makes it generic. Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_jack.c32
-rw-r--r--sound/pci/hda/hda_jack.h9
2 files changed, 39 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c
index c9333c9688f..5c690cb873d 100644
--- a/sound/pci/hda/hda_jack.c
+++ b/sound/pci/hda/hda_jack.c
@@ -192,8 +192,9 @@ EXPORT_SYMBOL_HDA(snd_hda_jack_detect);
/**
* snd_hda_jack_detect_enable - enable the jack-detection
*/
-int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
- unsigned char action)
+int snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid,
+ unsigned char action,
+ hda_jack_callback cb)
{
struct hda_jack_tbl *jack = snd_hda_jack_tbl_new(codec, nid);
if (!jack)
@@ -203,10 +204,19 @@ int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
jack->jack_detect = 1;
if (action)
jack->action = action;
+ if (cb)
+ jack->callback = cb;
return snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_UNSOLICITED_ENABLE,
AC_USRSP_EN | jack->tag);
}
+EXPORT_SYMBOL_HDA(snd_hda_jack_detect_enable_callback);
+
+int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
+ unsigned char action)
+{
+ return snd_hda_jack_detect_enable_callback(codec, nid, action, NULL);
+}
EXPORT_SYMBOL_HDA(snd_hda_jack_detect_enable);
/**
@@ -411,3 +421,21 @@ int snd_hda_jack_add_kctls(struct hda_codec *codec,
return 0;
}
EXPORT_SYMBOL_HDA(snd_hda_jack_add_kctls);
+
+void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res)
+{
+ struct hda_jack_tbl *event;
+ int tag = (res >> AC_UNSOL_RES_TAG_SHIFT) & 0x7f;
+
+ event = snd_hda_jack_tbl_get_from_tag(codec, tag);
+ if (!event)
+ return;
+ event->jack_dirty = 1;
+
+ if (event->callback)
+ event->callback(codec, event);
+
+ snd_hda_jack_report_sync(codec);
+}
+EXPORT_SYMBOL_HDA(snd_hda_jack_unsol_event);
+
diff --git a/sound/pci/hda/hda_jack.h b/sound/pci/hda/hda_jack.h
index a9803da633c..af8dd4724da 100644
--- a/sound/pci/hda/hda_jack.h
+++ b/sound/pci/hda/hda_jack.h
@@ -13,12 +13,16 @@
#define __SOUND_HDA_JACK_H
struct auto_pin_cfg;
+struct hda_jack_tbl;
+
+typedef void (*hda_jack_callback) (struct hda_codec *, struct hda_jack_tbl *);
struct hda_jack_tbl {
hda_nid_t nid;
unsigned char action; /* event action (0 = none) */
unsigned char tag; /* unsol event tag */
unsigned int private_data; /* arbitrary data */
+ hda_jack_callback callback;
/* jack-detection stuff */
unsigned int pin_sense; /* cached pin-sense value */
unsigned int jack_detect:1; /* capable of jack-detection? */
@@ -61,6 +65,10 @@ void snd_hda_jack_set_dirty_all(struct hda_codec *codec);
int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
unsigned char action);
+int snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid,
+ unsigned char action,
+ hda_jack_callback cb);
+
u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid);
@@ -74,5 +82,6 @@ int snd_hda_jack_add_kctls(struct hda_codec *codec,
void snd_hda_jack_report_sync(struct hda_codec *codec);
+void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res);
#endif /* __SOUND_HDA_JACK_H */