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ALSA: hda - make a generic unsol event handler

Forráskód böngészése 
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>
This commit is contained in:
David Henningsson
2012-09-25 11:30:59 +02:00
committed by Takashi Iwai
szülő 0fd0ba5f9e
commit 954df2a968
2 fájl változott, egészen pontosan 39 új sor hozzáadva és 2 régi sor törölve
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32
sound/pci/hda/hda_jack.c
Fájl megtekintése

@@ -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);