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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 int pin_sense; /* cached pin-sense value */
unsigned int jack_dirty:1; /* needs to update? */
};
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_new(struct hda_codec *codec, hda_nid_t nid);
void snd_hda_jack_tbl_clear(struct hda_codec *codec);
/**
* snd_hda_jack_set_dirty - set the dirty flag for the given jack-entry
*
* Call this function when a pin-state may change, e.g. when the hardware
* notifies via an unsolicited event.
*/
static inline void snd_hda_jack_set_dirty(struct hda_codec *codec,
hda_nid_t nid)
{
struct hda_jack_tbl *jack = snd_hda_jack_tbl_get(codec, nid);
if (jack)
jack->jack_dirty = 1;
}
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 int tag);
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;
}
#endif /* __SOUND_HDA_JACK_H */
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