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Diffstat (limited to 'include/sound/jack.h')
| -rw-r--r-- | include/sound/jack.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/include/sound/jack.h b/include/sound/jack.h new file mode 100644 index 000000000..4742f842b --- /dev/null +++ b/include/sound/jack.h @@ -0,0 +1,134 @@ +#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 - Jack types which can be reported + * @SND_JACK_HEADPHONE: Headphone + * @SND_JACK_MICROPHONE: Microphone + * @SND_JACK_HEADSET: Headset + * @SND_JACK_LINEOUT: Line out + * @SND_JACK_MECHANICAL: Mechanical switch + * @SND_JACK_VIDEOOUT: Video out + * @SND_JACK_AVOUT: AV (Audio Video) out + * @SND_JACK_LINEIN: Line in + * @SND_JACK_BTN_0: Button 0 + * @SND_JACK_BTN_1: Button 1 + * @SND_JACK_BTN_2: Button 2 + * @SND_JACK_BTN_3: Button 3 + * @SND_JACK_BTN_4: Button 4 + * @SND_JACK_BTN_5: Button 5 + * + * These values are used as a bitmask. + * + * Note that this must be kept in sync with the lookup table in + * sound/core/jack.c. + */ +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 list_head kctl_list; + struct snd_card *card; + const char *id; +#ifdef CONFIG_SND_JACK_INPUT_DEV + struct input_dev *input_dev; + struct mutex input_dev_lock; + int registered; + int type; + char name[100]; + unsigned int key[6]; /* Keep in sync with definitions above */ +#endif /* CONFIG_SND_JACK_INPUT_DEV */ + 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, bool initial_kctl, bool phantom_jack); +int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask); +#ifdef CONFIG_SND_JACK_INPUT_DEV +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); +#endif +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, bool initial_kctl, bool phantom_jack) +{ + return 0; +} + +static inline int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask) +{ + return 0; +} + +static inline void snd_jack_report(struct snd_jack *jack, int status) +{ +} + +#endif + +#if !defined(CONFIG_SND_JACK) || !defined(CONFIG_SND_JACK_INPUT_DEV) +static inline void snd_jack_set_parent(struct snd_jack *jack, + struct device *parent) +{ +} + +static inline int snd_jack_set_key(struct snd_jack *jack, + enum snd_jack_types type, + int keytype) +{ + return 0; +} +#endif /* !CONFIG_SND_JACK || !CONFIG_SND_JACK_INPUT_DEV */ + +#endif |