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