/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2005-2009 Ariff Abdullah <ariff@FreeBSD.org>
 * Copyright (c) 1999 Cameron Grant <cg@FreeBSD.org>
 * All rights reserved.
 * Copyright (c) 2026 The FreeBSD Foundation
 *
 * Portions of this software were developed by Christos Margiolis
 * <christos@FreeBSD.org> under sponsorship from the FreeBSD Foundation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _PCM_MIXER_H_
#define	_PCM_MIXER_H_

#define MIXER_NAMELEN	16
struct snd_mixer {
	KOBJ_FIELDS;
	void *devinfo;
	int hwvol_mixer;
	int hwvol_step;
	int type;
	device_t dev;
	u_int32_t devs;
	u_int32_t mutedevs;
	u_int32_t recdevs;
	u_int32_t recsrc;
	u_int16_t level[32];
	u_int16_t level_muted[32];
	u_int8_t parent[32];
	u_int32_t child[32];
	u_int8_t realdev[32];
	char name[MIXER_NAMELEN];
	struct mtx lock;
	int modify_counter;
};

struct snd_mixer *mixer_create(device_t dev, kobj_class_t cls, void *devinfo,
    const char *desc);
int mixer_delete(struct snd_mixer *m);
int mixer_init(device_t dev, kobj_class_t cls, void *devinfo);
int mixer_uninit(device_t dev);
int mixer_reinit(device_t dev);
int mixer_ioctl_cmd(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode, struct thread *td);
int mixer_oss_mixerinfo(struct cdev *i_dev, oss_mixerinfo *mi);

int mixer_hwvol_init(device_t dev);
void mixer_hwvol_mute_locked(struct snd_mixer *m);
void mixer_hwvol_mute(device_t dev);
void mixer_hwvol_step_locked(struct snd_mixer *m, int l_step, int r_step);
void mixer_hwvol_step(device_t dev, int left_step, int right_step);

int mix_set(struct snd_mixer *m, u_int dev, u_int left, u_int right);
int mix_get(struct snd_mixer *m, u_int dev);
int mix_setrecsrc(struct snd_mixer *m, u_int32_t src);
u_int32_t mix_getrecsrc(struct snd_mixer *m);
device_t mix_get_dev(struct snd_mixer *m);

void mix_setdevs(struct snd_mixer *m, u_int32_t v);
void mix_setrecdevs(struct snd_mixer *m, u_int32_t v);
void mix_setmutedevs(struct snd_mixer *m, u_int32_t v);
u_int32_t mix_getdevs(struct snd_mixer *m);
u_int32_t mix_getrecdevs(struct snd_mixer *m);
u_int32_t mix_getmutedevs(struct snd_mixer *m);
void mix_setparentchild(struct snd_mixer *m, u_int32_t parent, u_int32_t childs);
void mix_setrealdev(struct snd_mixer *m, u_int32_t dev, u_int32_t realdev);
u_int32_t mix_getparent(struct snd_mixer *m, u_int32_t dev);
void *mix_getdevinfo(struct snd_mixer *m);

#define MIXER_TYPE_PRIMARY	0	/* mixer_init()   */
#define MIXER_TYPE_SECONDARY	1	/* mixer_create() */

#define MIXER_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, \
    sizeof(struct snd_mixer))

#endif				/* _PCM_MIXER_H_ */