| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | #ifndef __SOUND_MIXER_OSS_H |
| 2 | #define __SOUND_MIXER_OSS_H |
| 3 | |
| 4 | /* |
| 5 | * OSS MIXER API |
| 6 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
| 7 | * |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #if IS_ENABLED(CONFIG_SND_MIXER_OSS) |
| 26 | |
| 27 | #define SNDRV_OSS_MAX_MIXERS 32 |
| 28 | |
| 29 | struct snd_mixer_oss_file; |
| 30 | |
| 31 | struct snd_mixer_oss_slot { |
| 32 | int number; |
| 33 | unsigned int stereo: 1; |
| 34 | int (*get_volume)(struct snd_mixer_oss_file *fmixer, |
| 35 | struct snd_mixer_oss_slot *chn, |
| 36 | int *left, int *right); |
| 37 | int (*put_volume)(struct snd_mixer_oss_file *fmixer, |
| 38 | struct snd_mixer_oss_slot *chn, |
| 39 | int left, int right); |
| 40 | int (*get_recsrc)(struct snd_mixer_oss_file *fmixer, |
| 41 | struct snd_mixer_oss_slot *chn, |
| 42 | int *active); |
| 43 | int (*put_recsrc)(struct snd_mixer_oss_file *fmixer, |
| 44 | struct snd_mixer_oss_slot *chn, |
| 45 | int active); |
| 46 | unsigned long private_value; |
| 47 | void *private_data; |
| 48 | void (*private_free)(struct snd_mixer_oss_slot *slot); |
| 49 | int volume[2]; |
| 50 | }; |
| 51 | |
| 52 | struct snd_mixer_oss { |
| 53 | struct snd_card *card; |
| 54 | char id[16]; |
| 55 | char name[32]; |
| 56 | struct snd_mixer_oss_slot slots[SNDRV_OSS_MAX_MIXERS]; /* OSS mixer slots */ |
| 57 | unsigned int mask_recsrc; /* exclusive recsrc mask */ |
| 58 | int (*get_recsrc)(struct snd_mixer_oss_file *fmixer, |
| 59 | unsigned int *active_index); |
| 60 | int (*put_recsrc)(struct snd_mixer_oss_file *fmixer, |
| 61 | unsigned int active_index); |
| 62 | void *private_data_recsrc; |
| 63 | void (*private_free_recsrc)(struct snd_mixer_oss *mixer); |
| 64 | struct mutex reg_mutex; |
| 65 | struct snd_info_entry *proc_entry; |
| 66 | int oss_dev_alloc; |
| 67 | /* --- */ |
| 68 | int oss_recsrc; |
| 69 | }; |
| 70 | |
| 71 | struct snd_mixer_oss_file { |
| 72 | struct snd_card *card; |
| 73 | struct snd_mixer_oss *mixer; |
| 74 | }; |
| 75 | |
| 76 | int snd_mixer_oss_ioctl_card(struct snd_card *card, |
| 77 | unsigned int cmd, unsigned long arg); |
| 78 | |
| 79 | #endif /* CONFIG_SND_MIXER_OSS */ |
| 80 | |
| 81 | #endif /* __SOUND_MIXER_OSS_H */ |