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
  28 struct 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  */
  37 enum 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
  59 struct snd_jack {
  60         struct input_dev *input_dev;
  61         int registered;
  62         int type;
  63         const char *id;
  64         char name[100];
  65         unsigned int key[6];   /* Keep in sync with definitions above */
  66         void *private_data;
  67         void (*private_free)(struct snd_jack *);
  68 };
  69
  70 #ifdef CONFIG_SND_JACK
  71
  72 int snd_jack_new(struct snd_card *card, const char *id, int type,
  73                  struct snd_jack **jack);
  74 void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
  75 int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
  76                      int keytype);
  77
  78 void snd_jack_report(struct snd_jack *jack, int status);
  79
  80 #else
  81
  82 static inline int snd_jack_new(struct snd_card *card, const char *id, int type,
  83                                struct snd_jack **jack)
  84 {
  85         return 0;
  86 }
  87
  88 static inline void snd_jack_set_parent(struct snd_jack *jack,
  89                                        struct device *parent)
  90 {
  91 }
  92
  93 static inline void snd_jack_report(struct snd_jack *jack, int status)
  94 {
  95 }
  96
  97 #endif
  98
  99 #endif