LXR linux/include/sound/jack.h

   1#ifndef __SOUND_JACK_H
   2#define __SOUND_JACK_H
   3
   4/*
   5 *  Jack abstraction layer
   6 *
   7 *  Copyright 2008 Wolfson Microelectronics plc
   8 *
   9 *
  10 *   This program is free software; you can redistribute it and/or modify
  11 *   it under the terms of the GNU General Public License as published by
  12 *   the Free Software Foundation; either version 2 of the License, or
  13 *   (at your option) any later version.
  14 *
  15 *   This program is distributed in the hope that it will be useful,
  16 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 *   GNU General Public License for more details.
  19 *
  20 *   You should have received a copy of the GNU General Public License
  21 *   along with this program; if not, write to the Free Software
  22 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  23 *
  24 */
  25
  26#include <sound/core.h>
  27
  28struct input_dev;
  29
  30/**
  31 * Jack types which can be reported.  These values are used as a
  32 * bitmask.
  33 *
  34 * Note that this must be kept in sync with the lookup table in
  35 * sound/core/jack.c.
  36 */
  37enum snd_jack_types {
  38        SND_JACK_HEADPHONE      = 0x0001,
  39        SND_JACK_MICROPHONE     = 0x0002,
  40        SND_JACK_HEADSET        = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE,
  41        SND_JACK_LINEOUT        = 0x0004,
  42        SND_JACK_MECHANICAL     = 0x0008, /* If detected separately */
  43        SND_JACK_VIDEOOUT       = 0x0010,
  44        SND_JACK_AVOUT          = SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
  45        SND_JACK_LINEIN         = 0x0020,
  46
  47        /* Kept separate from switches to facilitate implementation */
  48        SND_JACK_BTN_0          = 0x4000,
  49        SND_JACK_BTN_1          = 0x2000,
  50        SND_JACK_BTN_2          = 0x1000,
  51        SND_JACK_BTN_3          = 0x0800,
  52        SND_JACK_BTN_4          = 0x0400,
  53        SND_JACK_BTN_5          = 0x0200,
  54};
  55
  56/* Keep in sync with definitions above */
  57#define SND_JACK_SWITCH_TYPES 6
  58
  59struct snd_jack {
  60        struct list_head kctl_list;
  61        struct snd_card *card;
  62        const char *id;
  63#ifdef CONFIG_SND_JACK_INPUT_DEV
  64        struct input_dev *input_dev;
  65        int registered;
  66        int type;
  67        char name[100];
  68        unsigned int key[6];   /* Keep in sync with definitions above */
  69#endif /* CONFIG_SND_JACK_INPUT_DEV */
  70        void *private_data;
  71        void (*private_free)(struct snd_jack *);
  72};
  73
  74#ifdef CONFIG_SND_JACK
  75
  76int snd_jack_new(struct snd_card *card, const char *id, int type,
  77                 struct snd_jack **jack, bool initial_kctl, bool phantom_jack);
  78int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask);
  79#ifdef CONFIG_SND_JACK_INPUT_DEV
  80void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
  81int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
  82                     int keytype);
  83#endif
  84void snd_jack_report(struct snd_jack *jack, int status);
  85
  86#else
  87static inline int snd_jack_new(struct snd_card *card, const char *id, int type,
  88                               struct snd_jack **jack, bool initial_kctl, bool phantom_jack)
  89{
  90        return 0;
  91}
  92
  93static inline int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask)
  94{
  95        return 0;
  96}
  97
  98static inline void snd_jack_report(struct snd_jack *jack, int status)
  99{
 100}
 101
 102#endif
 103
 104#if !defined(CONFIG_SND_JACK) || !defined(CONFIG_SND_JACK_INPUT_DEV)
 105static inline void snd_jack_set_parent(struct snd_jack *jack,
 106                                       struct device *parent)
 107{
 108}
 109
 110static inline int snd_jack_set_key(struct snd_jack *jack,
 111                                   enum snd_jack_types type,
 112                                   int keytype)
 113{
 114        return 0;
 115}
 116#endif /* !CONFIG_SND_JACK || !CONFIG_SND_JACK_INPUT_DEV */
 117
 118#endif
 119