hda_jack.h

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/*
 * Jack-detection handling for HD-audio
 *
 * Copyright (c) 2011 Takashi Iwai <[email protected]>
 *
 * 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 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? */
    unsigned int jack_dirty:1;  /* needs to update? */
    unsigned int phantom_jack:1;    /* a fixed, always present port? */
    struct snd_kcontrol *kctl;  /* assigned kctl for jack-detection */
#ifdef CONFIG_SND_HDA_INPUT_JACK
    int type;
    struct snd_jack *jack;
#endif
};

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);

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);
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);

bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid);

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);

void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res);

#endif /* __SOUND_HDA_JACK_H */