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Name	Size	Permission
ac97	[ DIR ]	drwxr-xr-x
ac97_codec.h	16.34 KB	-rw-r--r--
aci.h	2.4 KB	-rw-r--r--
ad1816a.h	5.38 KB	-rw-r--r--
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aess.h	1.63 KB	-rw-r--r--
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ak4531_codec.h	3.1 KB	-rw-r--r--
ak4641.h	622 B	-rw-r--r--
ak4xxx-adda.h	3.34 KB	-rw-r--r--
alc5623.h	536 B	-rw-r--r--
asequencer.h	3.58 KB	-rw-r--r--
asound.h	1.25 KB	-rw-r--r--
asoundef.h	16.7 KB	-rw-r--r--
compress_driver.h	6.72 KB	-rw-r--r--
control.h	8.84 KB	-rw-r--r--
core.h	13.58 KB	-rw-r--r--
cs35l33.h	1.01 KB	-rw-r--r--
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designware_i2s.h	2.25 KB	-rw-r--r--
dmaengine_pcm.h	6.22 KB	-rw-r--r--
emu10k1.h	89.25 KB	-rw-r--r--
emu10k1_synth.h	1.35 KB	-rw-r--r--
emu8000.h	4.01 KB	-rw-r--r--
emu8000_reg.h	10.21 KB	-rw-r--r--
emux_legacy.h	5.37 KB	-rw-r--r--
emux_synth.h	7.46 KB	-rw-r--r--
es1688.h	3.53 KB	-rw-r--r--
gus.h	20.21 KB	-rw-r--r--
hda_chmap.h	2.6 KB	-rw-r--r--
hda_hwdep.h	1.38 KB	-rw-r--r--
hda_i915.h	1.64 KB	-rw-r--r--
hda_register.h	10 KB	-rw-r--r--
hda_regmap.h	6.59 KB	-rw-r--r--
hda_verbs.h	16.81 KB	-rw-r--r--
hdaudio.h	18.46 KB	-rw-r--r--
hdaudio_ext.h	6.99 KB	-rw-r--r--
hdmi-codec.h	2.42 KB	-rw-r--r--
hwdep.h	2.56 KB	-rw-r--r--
i2c.h	3.47 KB	-rw-r--r--
info.h	7.41 KB	-rw-r--r--
initval.h	3.08 KB	-rw-r--r--
jack.h	3.73 KB	-rw-r--r--
l3.h	524 B	-rw-r--r--
max9768.h	729 B	-rw-r--r--
max98088.h	1.26 KB	-rw-r--r--
max98090.h	754 B	-rw-r--r--
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memalloc.h	4.41 KB	-rw-r--r--
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mixer_oss.h	2.41 KB	-rw-r--r--
mpu401.h	4.49 KB	-rw-r--r--
omap-hdmi-audio.h	1.34 KB	-rw-r--r--
omap-pcm.h	864 B	-rw-r--r--
opl3.h	12.31 KB	-rw-r--r--
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pcm-indirect.h	5.7 KB	-rw-r--r--
pcm.h	47.38 KB	-rw-r--r--
pcm_drm_eld.h	183 B	-rw-r--r--
pcm_iec958.h	332 B	-rw-r--r--
pcm_oss.h	2.69 KB	-rw-r--r--
pcm_params.h	9.03 KB	-rw-r--r--
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pxa2xx-lib.h	1.48 KB	-rw-r--r--
rawmidi.h	6.14 KB	-rw-r--r--
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s3c24xx_uda134x.h	229 B	-rw-r--r--
sb.h	10.98 KB	-rw-r--r--
sb16_csp.h	2.71 KB	-rw-r--r--
seq_device.h	2.79 KB	-rw-r--r--
seq_kernel.h	3.96 KB	-rw-r--r--
seq_midi_emul.h	7.26 KB	-rw-r--r--
seq_midi_event.h	2.17 KB	-rw-r--r--
seq_oss.h	2.86 KB	-rw-r--r--
seq_oss_legacy.h	1 KB	-rw-r--r--
seq_virmidi.h	2.73 KB	-rw-r--r--
sh_dac_audio.h	587 B	-rw-r--r--
sh_fsi.h	847 B	-rw-r--r--
simple_card.h	683 B	-rw-r--r--
simple_card_utils.h	3.96 KB	-rw-r--r--
snd_wavefront.h	5.57 KB	-rw-r--r--
soc-acpi-intel-match.h	1.1 KB	-rw-r--r--
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soc.h	63.47 KB	-rw-r--r--
soundfont.h	4.48 KB	-rw-r--r--
spear_dma.h	1003 B	-rw-r--r--
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sta32x.h	1.2 KB	-rw-r--r--
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timer.h	5.56 KB	-rw-r--r--
tlv.h	2.27 KB	-rw-r--r--
tlv320aic32x4.h	1.43 KB	-rw-r--r--
tlv320aic3x.h	1.88 KB	-rw-r--r--
tlv320dac33-plat.h	720 B	-rw-r--r--
tpa6130a2-plat.h	900 B	-rw-r--r--
uda134x.h	597 B	-rw-r--r--
uda1380.h	481 B	-rw-r--r--
util_mem.h	2.26 KB	-rw-r--r--
vx_core.h	15.34 KB	-rw-r--r--
wavefront.h	18.76 KB	-rw-r--r--
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wm1250-ev1.h	656 B	-rw-r--r--
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wss.h	8.44 KB	-rw-r--r--

Code Editor : control.h

#ifndef __SOUND_CONTROL_H
#define __SOUND_CONTROL_H

/*
 *  Header file for control interface
 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
 *
 *
 *   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 <linux/wait.h>
#include <linux/nospec.h>
#include <sound/asound.h>

#define snd_kcontrol_chip(kcontrol) ((kcontrol)->private_data)

struct snd_kcontrol;
typedef int (snd_kcontrol_info_t) (struct snd_kcontrol * kcontrol, struct snd_ctl_elem_info * uinfo);
typedef int (snd_kcontrol_get_t) (struct snd_kcontrol * kcontrol, struct snd_ctl_elem_value * ucontrol);
typedef int (snd_kcontrol_put_t) (struct snd_kcontrol * kcontrol, struct snd_ctl_elem_value * ucontrol);
typedef int (snd_kcontrol_tlv_rw_t)(struct snd_kcontrol *kcontrol,
				    int op_flag, /* SNDRV_CTL_TLV_OP_XXX */
				    unsigned int size,
				    unsigned int __user *tlv);

enum {
	SNDRV_CTL_TLV_OP_READ = 0,
	SNDRV_CTL_TLV_OP_WRITE = 1,
	SNDRV_CTL_TLV_OP_CMD = -1,
};

struct snd_kcontrol_new {
	snd_ctl_elem_iface_t iface;	/* interface identifier */
	unsigned int device;		/* device/client number */
	unsigned int subdevice;		/* subdevice (substream) number */
	const unsigned char *name;	/* ASCII name of item */
	unsigned int index;		/* index of item */
	unsigned int access;		/* access rights */
	unsigned int count;		/* count of same elements */
	snd_kcontrol_info_t *info;
	snd_kcontrol_get_t *get;
	snd_kcontrol_put_t *put;
	union {
		snd_kcontrol_tlv_rw_t *c;
		const unsigned int *p;
	} tlv;
	unsigned long private_value;
};

struct snd_kcontrol_volatile {
	struct snd_ctl_file *owner;	/* locked */
	unsigned int access;	/* access rights */
};

struct snd_kcontrol {
	struct list_head list;		/* list of controls */
	struct snd_ctl_elem_id id;
	unsigned int count;		/* count of same elements */
	snd_kcontrol_info_t *info;
	snd_kcontrol_get_t *get;
	snd_kcontrol_put_t *put;
	union {
		snd_kcontrol_tlv_rw_t *c;
		const unsigned int *p;
	} tlv;
	unsigned long private_value;
	void *private_data;
	void (*private_free)(struct snd_kcontrol *kcontrol);
	struct snd_kcontrol_volatile vd[0];	/* volatile data */
};

#define snd_kcontrol(n) list_entry(n, struct snd_kcontrol, list)

struct snd_kctl_event {
	struct list_head list;	/* list of events */
	struct snd_ctl_elem_id id;
	unsigned int mask;
};

#define snd_kctl_event(n) list_entry(n, struct snd_kctl_event, list)

struct pid;

enum {
	SND_CTL_SUBDEV_PCM,
	SND_CTL_SUBDEV_RAWMIDI,
	SND_CTL_SUBDEV_ITEMS,
};

struct snd_ctl_file {
	struct list_head list;		/* list of all control files */
	struct snd_card *card;
	struct pid *pid;
	int preferred_subdevice[SND_CTL_SUBDEV_ITEMS];
	wait_queue_head_t change_sleep;
	spinlock_t read_lock;
	struct fasync_struct *fasync;
	int subscribed;			/* read interface is activated */
	struct list_head events;	/* waiting events for read */
};

#define snd_ctl_file(n) list_entry(n, struct snd_ctl_file, list)

typedef int (*snd_kctl_ioctl_func_t) (struct snd_card * card,
				      struct snd_ctl_file * control,
				      unsigned int cmd, unsigned long arg);

void snd_ctl_notify(struct snd_card * card, unsigned int mask, struct snd_ctl_elem_id * id);

struct snd_kcontrol *snd_ctl_new1(const struct snd_kcontrol_new * kcontrolnew, void * private_data);
void snd_ctl_free_one(struct snd_kcontrol * kcontrol);
int snd_ctl_add(struct snd_card * card, struct snd_kcontrol * kcontrol);
int snd_ctl_remove(struct snd_card * card, struct snd_kcontrol * kcontrol);
int snd_ctl_replace(struct snd_card *card, struct snd_kcontrol *kcontrol, bool add_on_replace);
int snd_ctl_remove_id(struct snd_card * card, struct snd_ctl_elem_id *id);
int snd_ctl_rename_id(struct snd_card * card, struct snd_ctl_elem_id *src_id, struct snd_ctl_elem_id *dst_id);
int snd_ctl_activate_id(struct snd_card *card, struct snd_ctl_elem_id *id,
			int active);
struct snd_kcontrol *snd_ctl_find_numid(struct snd_card * card, unsigned int numid);
struct snd_kcontrol *snd_ctl_find_id(struct snd_card * card, struct snd_ctl_elem_id *id);

int snd_ctl_create(struct snd_card *card);

int snd_ctl_register_ioctl(snd_kctl_ioctl_func_t fcn);
int snd_ctl_unregister_ioctl(snd_kctl_ioctl_func_t fcn);
#ifdef CONFIG_COMPAT
int snd_ctl_register_ioctl_compat(snd_kctl_ioctl_func_t fcn);
int snd_ctl_unregister_ioctl_compat(snd_kctl_ioctl_func_t fcn);
#else
#define snd_ctl_register_ioctl_compat(fcn)
#define snd_ctl_unregister_ioctl_compat(fcn)
#endif

int snd_ctl_get_preferred_subdevice(struct snd_card *card, int type);

static inline unsigned int snd_ctl_get_ioffnum(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id)
{
	unsigned int ioff = id->numid - kctl->id.numid;
	return array_index_nospec(ioff, kctl->count);
}

static inline unsigned int snd_ctl_get_ioffidx(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id)
{
	unsigned int ioff = id->index - kctl->id.index;
	return array_index_nospec(ioff, kctl->count);
}

static inline unsigned int snd_ctl_get_ioff(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id)
{
	if (id->numid) {
		return snd_ctl_get_ioffnum(kctl, id);
	} else {
		return snd_ctl_get_ioffidx(kctl, id);
	}
}

static inline struct snd_ctl_elem_id *snd_ctl_build_ioff(struct snd_ctl_elem_id *dst_id,
						    struct snd_kcontrol *src_kctl,
						    unsigned int offset)
{
	*dst_id = src_kctl->id;
	dst_id->index += offset;
	dst_id->numid += offset;
	return dst_id;
}

/*
 * Frequently used control callbacks/helpers
 */
int snd_ctl_boolean_mono_info(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_info *uinfo);
int snd_ctl_boolean_stereo_info(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_info *uinfo);
int snd_ctl_enum_info(struct snd_ctl_elem_info *info, unsigned int channels,
		      unsigned int items, const char *const names[]);

/*
 * virtual master control
 */
struct snd_kcontrol *snd_ctl_make_virtual_master(char *name,
						 const unsigned int *tlv);
int _snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave,
		       unsigned int flags);
/* optional flags for slave */
#define SND_CTL_SLAVE_NEED_UPDATE	(1 << 0)

/**
 * snd_ctl_add_slave - Add a virtual slave control
 * @master: vmaster element
 * @slave: slave element to add
 *
 * Add a virtual slave control to the given master element created via
 * snd_ctl_create_virtual_master() beforehand.
 *
 * All slaves must be the same type (returning the same information
 * via info callback).  The function doesn't check it, so it's your
 * responsibility.
 *
 * Also, some additional limitations:
 * at most two channels,
 * logarithmic volume control (dB level) thus no linear volume,
 * master can only attenuate the volume without gain
 *
 * Return: Zero if successful or a negative error code.
 */
static inline int
snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave)
{
	return _snd_ctl_add_slave(master, slave, 0);
}

/**
 * snd_ctl_add_slave_uncached - Add a virtual slave control
 * @master: vmaster element
 * @slave: slave element to add
 *
 * Add a virtual slave control to the given master.
 * Unlike snd_ctl_add_slave(), the element added via this function
 * is supposed to have volatile values, and get callback is called
 * at each time queried from the master.
 *
 * When the control peeks the hardware values directly and the value
 * can be changed by other means than the put callback of the element,
 * this function should be used to keep the value always up-to-date.
 *
 * Return: Zero if successful or a negative error code.
 */
static inline int
snd_ctl_add_slave_uncached(struct snd_kcontrol *master,
			   struct snd_kcontrol *slave)
{
	return _snd_ctl_add_slave(master, slave, SND_CTL_SLAVE_NEED_UPDATE);
}

int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kctl,
			     void (*hook)(void *private_data, int),
			     void *private_data);
void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only);
#define snd_ctl_sync_vmaster_hook(kctl)	snd_ctl_sync_vmaster(kctl, true)
int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl,
				 int (*func)(struct snd_kcontrol *vslave,
					     struct snd_kcontrol *slave,
					     void *arg),
				 void *arg);

/*
 * Helper functions for jack-detection controls
 */
struct snd_kcontrol *
snd_kctl_jack_new(const char *name, struct snd_card *card);
void snd_kctl_jack_report(struct snd_card *card,
			  struct snd_kcontrol *kctl, bool status);

#endif	/* __SOUND_CONTROL_H */

${this.title}

Code Editor : control.h