projects / mirror_ubuntu-hirsute-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 1da177e4 LT |
2 | #ifndef __SOUND_HWDEP_H |
| 3 | #define __SOUND_HWDEP_H | |
| 4 | ||
| 5 | /* | |
| 6 | * Hardware dependent layer | |
| c1017a4c | 7 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
| 1da177e4 LT |
8 | */ |
| 9 | ||
| 10 | #include <sound/asound.h> | |
| 11 | #include <linux/poll.h> | |
| 12 | ||
| d9a98de2 | 13 | struct snd_hwdep; |
| 1da177e4 | 14 | |
| e0d80648 | 15 | /* hwdep file ops; all ops can be NULL */ |
| d9a98de2 | 16 | struct snd_hwdep_ops { |
| e0d80648 TI |
17 | long long (*llseek)(struct snd_hwdep *hw, struct file *file, |
| 18 | long long offset, int orig); | |
| 19 | long (*read)(struct snd_hwdep *hw, char __user *buf, | |
| 20 | long count, loff_t *offset); | |
| 21 | long (*write)(struct snd_hwdep *hw, const char __user *buf, | |
| 22 | long count, loff_t *offset); | |
| 23 | int (*open)(struct snd_hwdep *hw, struct file * file); | |
| 24 | int (*release)(struct snd_hwdep *hw, struct file * file); | |
| a3f8683b | 25 | __poll_t (*poll)(struct snd_hwdep *hw, struct file *file, |
| e0d80648 TI |
26 | poll_table *wait); |
| 27 | int (*ioctl)(struct snd_hwdep *hw, struct file *file, | |
| 28 | unsigned int cmd, unsigned long arg); | |
| 29 | int (*ioctl_compat)(struct snd_hwdep *hw, struct file *file, | |
| 30 | unsigned int cmd, unsigned long arg); | |
| 31 | int (*mmap)(struct snd_hwdep *hw, struct file *file, | |
| 32 | struct vm_area_struct *vma); | |
| 33 | int (*dsp_status)(struct snd_hwdep *hw, | |
| 34 | struct snd_hwdep_dsp_status *status); | |
| 35 | int (*dsp_load)(struct snd_hwdep *hw, | |
| 36 | struct snd_hwdep_dsp_image *image); | |
| d9a98de2 | 37 | }; |
| 1da177e4 | 38 | |
| d9a98de2 TI |
39 | struct snd_hwdep { |
| 40 | struct snd_card *card; | |
| f87135f5 | 41 | struct list_head list; |
| 1da177e4 LT |
42 | int device; |
| 43 | char id[32]; | |
| 44 | char name[80]; | |
| 45 | int iface; | |
| 46 | ||
| 47 | #ifdef CONFIG_SND_OSSEMUL | |
| 1da177e4 LT |
48 | int oss_type; |
| 49 | int ossreg; | |
| 50 | #endif | |
| 51 | ||
| d9a98de2 | 52 | struct snd_hwdep_ops ops; |
| 1da177e4 LT |
53 | wait_queue_head_t open_wait; |
| 54 | void *private_data; | |
| d9a98de2 | 55 | void (*private_free) (struct snd_hwdep *hwdep); |
| 7b461600 | 56 | struct device dev; |
| 1da177e4 | 57 | |
| 1a60d4c5 | 58 | struct mutex open_mutex; |
| e0d80648 TI |
59 | int used; /* reference counter */ |
| 60 | unsigned int dsp_loaded; /* bit fields of loaded dsp indices */ | |
| 61 | unsigned int exclusive:1; /* exclusive access mode */ | |
| 1da177e4 LT |
62 | }; |
| 63 | ||
| d9a98de2 TI |
64 | extern int snd_hwdep_new(struct snd_card *card, char *id, int device, |
| 65 | struct snd_hwdep **rhwdep); | |
| 1da177e4 LT |
66 | |
| 67 | #endif /* __SOUND_HWDEP_H */ |