1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun #ifndef __SOUND_MIXER_OSS_H 3*4882a593Smuzhiyun #define __SOUND_MIXER_OSS_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* 6*4882a593Smuzhiyun * OSS MIXER API 7*4882a593Smuzhiyun * Copyright (c) by Jaroslav Kysela <perex@perex.cz> 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #if IS_ENABLED(CONFIG_SND_MIXER_OSS) 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #define SNDRV_OSS_MAX_MIXERS 32 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun struct snd_mixer_oss_file; 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun struct snd_mixer_oss_slot { 17*4882a593Smuzhiyun int number; 18*4882a593Smuzhiyun unsigned int stereo: 1; 19*4882a593Smuzhiyun int (*get_volume)(struct snd_mixer_oss_file *fmixer, 20*4882a593Smuzhiyun struct snd_mixer_oss_slot *chn, 21*4882a593Smuzhiyun int *left, int *right); 22*4882a593Smuzhiyun int (*put_volume)(struct snd_mixer_oss_file *fmixer, 23*4882a593Smuzhiyun struct snd_mixer_oss_slot *chn, 24*4882a593Smuzhiyun int left, int right); 25*4882a593Smuzhiyun int (*get_recsrc)(struct snd_mixer_oss_file *fmixer, 26*4882a593Smuzhiyun struct snd_mixer_oss_slot *chn, 27*4882a593Smuzhiyun int *active); 28*4882a593Smuzhiyun int (*put_recsrc)(struct snd_mixer_oss_file *fmixer, 29*4882a593Smuzhiyun struct snd_mixer_oss_slot *chn, 30*4882a593Smuzhiyun int active); 31*4882a593Smuzhiyun unsigned long private_value; 32*4882a593Smuzhiyun void *private_data; 33*4882a593Smuzhiyun void (*private_free)(struct snd_mixer_oss_slot *slot); 34*4882a593Smuzhiyun int volume[2]; 35*4882a593Smuzhiyun }; 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun struct snd_mixer_oss { 38*4882a593Smuzhiyun struct snd_card *card; 39*4882a593Smuzhiyun char id[16]; 40*4882a593Smuzhiyun char name[32]; 41*4882a593Smuzhiyun struct snd_mixer_oss_slot slots[SNDRV_OSS_MAX_MIXERS]; /* OSS mixer slots */ 42*4882a593Smuzhiyun unsigned int mask_recsrc; /* exclusive recsrc mask */ 43*4882a593Smuzhiyun int (*get_recsrc)(struct snd_mixer_oss_file *fmixer, 44*4882a593Smuzhiyun unsigned int *active_index); 45*4882a593Smuzhiyun int (*put_recsrc)(struct snd_mixer_oss_file *fmixer, 46*4882a593Smuzhiyun unsigned int active_index); 47*4882a593Smuzhiyun void *private_data_recsrc; 48*4882a593Smuzhiyun void (*private_free_recsrc)(struct snd_mixer_oss *mixer); 49*4882a593Smuzhiyun struct mutex reg_mutex; 50*4882a593Smuzhiyun struct snd_info_entry *proc_entry; 51*4882a593Smuzhiyun int oss_dev_alloc; 52*4882a593Smuzhiyun /* --- */ 53*4882a593Smuzhiyun int oss_recsrc; 54*4882a593Smuzhiyun }; 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun struct snd_mixer_oss_file { 57*4882a593Smuzhiyun struct snd_card *card; 58*4882a593Smuzhiyun struct snd_mixer_oss *mixer; 59*4882a593Smuzhiyun }; 60*4882a593Smuzhiyun 61*4882a593Smuzhiyun int snd_mixer_oss_ioctl_card(struct snd_card *card, 62*4882a593Smuzhiyun unsigned int cmd, unsigned long arg); 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun #endif /* CONFIG_SND_MIXER_OSS */ 65*4882a593Smuzhiyun 66*4882a593Smuzhiyun #endif /* __SOUND_MIXER_OSS_H */ 67