1#ifndef __SOUND_HWDEP_H
2#define __SOUND_HWDEP_H
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25#include <sound/asound.h>
26#include <linux/poll.h>
27
28struct snd_hwdep;
29
30
31struct snd_hwdep_ops {
32 long long (*llseek)(struct snd_hwdep *hw, struct file *file,
33 long long offset, int orig);
34 long (*read)(struct snd_hwdep *hw, char __user *buf,
35 long count, loff_t *offset);
36 long (*write)(struct snd_hwdep *hw, const char __user *buf,
37 long count, loff_t *offset);
38 int (*open)(struct snd_hwdep *hw, struct file * file);
39 int (*release)(struct snd_hwdep *hw, struct file * file);
40 unsigned int (*poll)(struct snd_hwdep *hw, struct file *file,
41 poll_table *wait);
42 int (*ioctl)(struct snd_hwdep *hw, struct file *file,
43 unsigned int cmd, unsigned long arg);
44 int (*ioctl_compat)(struct snd_hwdep *hw, struct file *file,
45 unsigned int cmd, unsigned long arg);
46 int (*mmap)(struct snd_hwdep *hw, struct file *file,
47 struct vm_area_struct *vma);
48 int (*dsp_status)(struct snd_hwdep *hw,
49 struct snd_hwdep_dsp_status *status);
50 int (*dsp_load)(struct snd_hwdep *hw,
51 struct snd_hwdep_dsp_image *image);
52};
53
54struct snd_hwdep {
55 struct snd_card *card;
56 struct list_head list;
57 int device;
58 char id[32];
59 char name[80];
60 int iface;
61
62#ifdef CONFIG_SND_OSSEMUL
63 char oss_dev[32];
64 int oss_type;
65 int ossreg;
66#endif
67
68 struct snd_hwdep_ops ops;
69 wait_queue_head_t open_wait;
70 void *private_data;
71 void (*private_free) (struct snd_hwdep *hwdep);
72
73 struct mutex open_mutex;
74 int used;
75 unsigned int dsp_loaded;
76 unsigned int exclusive:1;
77};
78
79extern int snd_hwdep_new(struct snd_card *card, char *id, int device,
80 struct snd_hwdep **rhwdep);
81
82#endif
83