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TOMOYO Linux Cross Reference
Linux/include/sound/jack.h

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  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  * enum snd_jack_types - Jack types which can be reported
 32  * @SND_JACK_HEADPHONE: Headphone
 33  * @SND_JACK_MICROPHONE: Microphone
 34  * @SND_JACK_HEADSET: Headset
 35  * @SND_JACK_LINEOUT: Line out
 36  * @SND_JACK_MECHANICAL: Mechanical switch
 37  * @SND_JACK_VIDEOOUT: Video out
 38  * @SND_JACK_AVOUT: AV (Audio Video) out
 39  * @SND_JACK_LINEIN:  Line in
 40  * @SND_JACK_BTN_0: Button 0
 41  * @SND_JACK_BTN_1: Button 1
 42  * @SND_JACK_BTN_2: Button 2
 43  * @SND_JACK_BTN_3: Button 3
 44  * @SND_JACK_BTN_4: Button 4
 45  * @SND_JACK_BTN_5: Button 5
 46  *
 47  * These values are used as a bitmask.
 48  *
 49  * Note that this must be kept in sync with the lookup table in
 50  * sound/core/jack.c.
 51  */
 52 enum snd_jack_types {
 53         SND_JACK_HEADPHONE      = 0x0001,
 54         SND_JACK_MICROPHONE     = 0x0002,
 55         SND_JACK_HEADSET        = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE,
 56         SND_JACK_LINEOUT        = 0x0004,
 57         SND_JACK_MECHANICAL     = 0x0008, /* If detected separately */
 58         SND_JACK_VIDEOOUT       = 0x0010,
 59         SND_JACK_AVOUT          = SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
 60         SND_JACK_LINEIN         = 0x0020,
 61 
 62         /* Kept separate from switches to facilitate implementation */
 63         SND_JACK_BTN_0          = 0x4000,
 64         SND_JACK_BTN_1          = 0x2000,
 65         SND_JACK_BTN_2          = 0x1000,
 66         SND_JACK_BTN_3          = 0x0800,
 67         SND_JACK_BTN_4          = 0x0400,
 68         SND_JACK_BTN_5          = 0x0200,
 69 };
 70 
 71 /* Keep in sync with definitions above */
 72 #define SND_JACK_SWITCH_TYPES 6
 73 
 74 struct snd_jack {
 75         struct list_head kctl_list;
 76         struct snd_card *card;
 77         const char *id;
 78 #ifdef CONFIG_SND_JACK_INPUT_DEV
 79         struct input_dev *input_dev;
 80         int registered;
 81         int type;
 82         char name[100];
 83         unsigned int key[6];   /* Keep in sync with definitions above */
 84 #endif /* CONFIG_SND_JACK_INPUT_DEV */
 85         void *private_data;
 86         void (*private_free)(struct snd_jack *);
 87 };
 88 
 89 #ifdef CONFIG_SND_JACK
 90 
 91 int snd_jack_new(struct snd_card *card, const char *id, int type,
 92                  struct snd_jack **jack, bool initial_kctl, bool phantom_jack);
 93 int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask);
 94 #ifdef CONFIG_SND_JACK_INPUT_DEV
 95 void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
 96 int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
 97                      int keytype);
 98 #endif
 99 void snd_jack_report(struct snd_jack *jack, int status);
100 
101 #else
102 static inline int snd_jack_new(struct snd_card *card, const char *id, int type,
103                                struct snd_jack **jack, bool initial_kctl, bool phantom_jack)
104 {
105         return 0;
106 }
107 
108 static inline int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask)
109 {
110         return 0;
111 }
112 
113 static inline void snd_jack_report(struct snd_jack *jack, int status)
114 {
115 }
116 
117 #endif
118 
119 #if !defined(CONFIG_SND_JACK) || !defined(CONFIG_SND_JACK_INPUT_DEV)
120 static inline void snd_jack_set_parent(struct snd_jack *jack,
121                                        struct device *parent)
122 {
123 }
124 
125 static inline int snd_jack_set_key(struct snd_jack *jack,
126                                    enum snd_jack_types type,
127                                    int keytype)
128 {
129         return 0;
130 }
131 #endif /* !CONFIG_SND_JACK || !CONFIG_SND_JACK_INPUT_DEV */
132 
133 #endif
134 

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