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/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __SOUND_MIXER_OSS_H
#define __SOUND_MIXER_OSS_H
/*
* OSS MIXER API
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*/
#if IS_ENABLED(CONFIG_SND_MIXER_OSS)
#define SNDRV_OSS_MAX_MIXERS 32
struct snd_mixer_oss_file;
struct snd_mixer_oss_slot {
int number;
unsigned int stereo: 1;
int (*get_volume)(struct snd_mixer_oss_file *fmixer,
struct snd_mixer_oss_slot *chn,
int *left, int *right);
int (*put_volume)(struct snd_mixer_oss_file *fmixer,
struct snd_mixer_oss_slot *chn,
int left, int right);
int (*get_recsrc)(struct snd_mixer_oss_file *fmixer,
struct snd_mixer_oss_slot *chn,
int *active);
int (*put_recsrc)(struct snd_mixer_oss_file *fmixer,
struct snd_mixer_oss_slot *chn,
int active);
unsigned long private_value;
void *private_data;
void (*private_free)(struct snd_mixer_oss_slot *slot);
int volume[2];
};
struct snd_mixer_oss {
struct snd_card *card;
char id[16];
char name[32];
struct snd_mixer_oss_slot slots[SNDRV_OSS_MAX_MIXERS]; /* OSS mixer slots */
unsigned int mask_recsrc; /* exclusive recsrc mask */
int (*get_recsrc)(struct snd_mixer_oss_file *fmixer,
unsigned int *active_index);
int (*put_recsrc)(struct snd_mixer_oss_file *fmixer,
unsigned int active_index);
void *private_data_recsrc;
void (*private_free_recsrc)(struct snd_mixer_oss *mixer);
struct mutex reg_mutex;
struct snd_info_entry *proc_entry;
int oss_dev_alloc;
/* --- */
int oss_recsrc;
};
struct snd_mixer_oss_file {
struct snd_card *card;
struct snd_mixer_oss *mixer;
};
int snd_mixer_oss_ioctl_card(struct snd_card *card,
unsigned int cmd, unsigned long arg);
#endif /* CONFIG_SND_MIXER_OSS */
#endif /* __SOUND_MIXER_OSS_H */