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/*
* Jack-detection handling for HD-audio
*
* Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
*
* This driver is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __SOUND_HDA_JACK_H
#define __SOUND_HDA_JACK_H
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 */
/* jack-detection stuff */
unsigned int pin_sense; /* cached pin-sense value */
unsigned int jack_detect:1; /* capable of jack-detection? */
unsigned int jack_dirty:1; /* needs to update? */
struct snd_kcontrol *kctl; /* assigned kctl for jack-detection */
};
struct hda_jack_tbl *
snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid);
struct hda_jack_tbl *
snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag);
struct hda_jack_tbl *
snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid);
void snd_hda_jack_tbl_clear(struct hda_codec *codec);
/**
* snd_hda_jack_get_action - get jack-tbl entry for the tag
*
* Call this from the unsol event handler to get the assigned action for the
* event. This will mark the dirty flag for the later reporting, too.
*/
static inline unsigned char
snd_hda_jack_get_action(struct hda_codec *codec, unsigned int tag)
{
struct hda_jack_tbl *jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
if (jack) {
jack->jack_dirty = 1;
return jack->action;
}
return 0;
}
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);
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);
static inline bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid)
{
if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_PRES_DETECT))
return false;
if (!codec->ignore_misc_bit &&
(get_defcfg_misc(snd_hda_codec_get_pincfg(codec, nid)) &
AC_DEFCFG_MISC_NO_PRESENCE))
return false;
if (!(get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP))
return false;
return true;
}
int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
const char *name, int idx);
int snd_hda_jack_add_kctls(struct hda_codec *codec,
const struct auto_pin_cfg *cfg);
void snd_hda_jack_report_sync(struct hda_codec *codec);
#endif /* __SOUND_HDA_JACK_H */
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