diff options
Diffstat (limited to 'include/sound/mixer_oss.h')
| -rw-r--r-- | include/sound/mixer_oss.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/include/sound/mixer_oss.h b/include/sound/mixer_oss.h new file mode 100644 index 0000000000..9a212c0ceb --- /dev/null +++ b/include/sound/mixer_oss.h @@ -0,0 +1,66 @@ +/* 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 */ |