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1 | #ifndef __SOUND_HWDEP_H |
2 | #define __SOUND_HWDEP_H | |
3 | ||
4 | /* | |
5 | * Hardware dependent layer | |
6 | * Copyright (c) by Jaroslav Kysela <perex@suse.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 | #include <sound/asound.h> | |
26 | #include <linux/poll.h> | |
27 | ||
28 | typedef enum sndrv_hwdep_iface snd_hwdep_iface_t; | |
29 | typedef struct sndrv_hwdep_info snd_hwdep_info_t; | |
30 | typedef struct sndrv_hwdep_dsp_status snd_hwdep_dsp_status_t; | |
31 | typedef struct sndrv_hwdep_dsp_image snd_hwdep_dsp_image_t; | |
32 | ||
33 | typedef struct _snd_hwdep_ops { | |
34 | long long (*llseek) (snd_hwdep_t *hw, struct file * file, long long offset, int orig); | |
35 | long (*read) (snd_hwdep_t * hw, char __user *buf, long count, loff_t *offset); | |
36 | long (*write) (snd_hwdep_t * hw, const char __user *buf, long count, loff_t *offset); | |
37 | int (*open) (snd_hwdep_t * hw, struct file * file); | |
38 | int (*release) (snd_hwdep_t * hw, struct file * file); | |
39 | unsigned int (*poll) (snd_hwdep_t * hw, struct file * file, poll_table * wait); | |
40 | int (*ioctl) (snd_hwdep_t * hw, struct file * file, unsigned int cmd, unsigned long arg); | |
41 | int (*ioctl_compat) (snd_hwdep_t * hw, struct file * file, unsigned int cmd, unsigned long arg); | |
42 | int (*mmap) (snd_hwdep_t * hw, struct file * file, struct vm_area_struct * vma); | |
43 | int (*dsp_status) (snd_hwdep_t * hw, snd_hwdep_dsp_status_t * status); | |
44 | int (*dsp_load) (snd_hwdep_t * hw, snd_hwdep_dsp_image_t * image); | |
45 | } snd_hwdep_ops_t; | |
46 | ||
47 | struct _snd_hwdep { | |
48 | snd_card_t *card; | |
49 | int device; | |
50 | char id[32]; | |
51 | char name[80]; | |
52 | int iface; | |
53 | ||
54 | #ifdef CONFIG_SND_OSSEMUL | |
55 | char oss_dev[32]; | |
56 | int oss_type; | |
57 | int ossreg; | |
58 | #endif | |
59 | ||
60 | snd_hwdep_ops_t ops; | |
61 | wait_queue_head_t open_wait; | |
62 | void *private_data; | |
63 | void (*private_free) (snd_hwdep_t *hwdep); | |
64 | ||
65 | struct semaphore open_mutex; | |
66 | int used; | |
67 | unsigned int dsp_loaded; | |
68 | unsigned int exclusive: 1; | |
69 | }; | |
70 | ||
71 | extern int snd_hwdep_new(snd_card_t * card, char *id, int device, snd_hwdep_t ** rhwdep); | |
72 | ||
73 | #endif /* __SOUND_HWDEP_H */ |