jack.h

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#ifndef __SOUND_JACK_H
#define __SOUND_JACK_H

/*
 *  Jack abstraction layer
 *
 *  Copyright 2008 Wolfson Microelectronics plc
 *
 *
 *   This program 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.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <sound/core.h>

struct input_dev;

enum snd_jack_types {
    SND_JACK_HEADPHONE  = 0x0001,
    SND_JACK_MICROPHONE = 0x0002,
    SND_JACK_HEADSET    = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE,
    SND_JACK_LINEOUT    = 0x0004,
    SND_JACK_MECHANICAL = 0x0008, /* If detected separately */
    SND_JACK_VIDEOOUT   = 0x0010,
    SND_JACK_AVOUT      = SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
    SND_JACK_LINEIN     = 0x0020,

    /* Kept separate from switches to facilitate implementation */
    SND_JACK_BTN_0      = 0x4000,
    SND_JACK_BTN_1      = 0x2000,
    SND_JACK_BTN_2      = 0x1000,
    SND_JACK_BTN_3      = 0x0800,
    SND_JACK_BTN_4      = 0x0400,
    SND_JACK_BTN_5      = 0x0200,
};

/* Keep in sync with definitions above */
#define SND_JACK_SWITCH_TYPES 6

struct snd_jack {
    struct input_dev *input_dev;
    int registered;
    int type;
    const char *id;
    char name[100];
    unsigned int key[6];   /* Keep in sync with definitions above */
    void *private_data;
    void (*private_free)(struct snd_jack *);
};

#ifdef CONFIG_SND_JACK

int snd_jack_new(struct snd_card *card, const char *id, int type,
         struct snd_jack **jack);
void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
             int keytype);

void snd_jack_report(struct snd_jack *jack, int status);

#else

static inline int snd_jack_new(struct snd_card *card, const char *id, int type,
                   struct snd_jack **jack)
{
    return 0;
}

static inline void snd_jack_set_parent(struct snd_jack *jack,
                       struct device *parent)
{
}

static inline void snd_jack_report(struct snd_jack *jack, int status)
{
}

#endif

#endif