Eric Lee / smarc-fsl-linux-kernel

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include/sound/jack.h 2.52 KB
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e76d8ceaa   Mark Brown   ALSA: Add jack re... 
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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;
  
  /**
   * Jack types which can be reported.  These values are used as a
   * bitmask.
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   *
   * Note that this must be kept in sync with the lookup table in
   * sound/core/jack.c.
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   */
  enum snd_jack_types {
  	SND_JACK_HEADPHONE	= 0x0001,
  	SND_JACK_MICROPHONE	= 0x0002,
  	SND_JACK_HEADSET	= SND_JACK_HEADPHONE | SND_JACK_MICROPHONE,
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  	SND_JACK_LINEOUT	= 0x0004,
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  	SND_JACK_MECHANICAL	= 0x0008, /* If detected separately */
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  	SND_JACK_VIDEOOUT	= 0x0010,
  	SND_JACK_AVOUT		= SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
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  	SND_JACK_LINEIN		= 0x0020,
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  	/* Kept separate from switches to facilitate implementation */
  	SND_JACK_BTN_0		= 0x4000,
  	SND_JACK_BTN_1		= 0x2000,
  	SND_JACK_BTN_2		= 0x1000,
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  	SND_JACK_BTN_3		= 0x0800,
  	SND_JACK_BTN_4		= 0x0400,
  	SND_JACK_BTN_5		= 0x0200,
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  };
  
  struct snd_jack {
  	struct input_dev *input_dev;
  	int registered;
  	int type;
  	const char *id;
  	char name[100];
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  	unsigned int key[6];   /* Keep in sync with definitions above */
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  	void *private_data;
  	void (*private_free)(struct snd_jack *);
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  };
  
  #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);
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  int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
  		     int keytype);
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  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