1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
#ifndef __SOUND_INFO_H
#define __SOUND_INFO_H
/*
* Header file for info interface
* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/poll.h>
/* buffer for information */
struct snd_info_buffer {
char *buffer; /* pointer to begin of buffer */
unsigned int curr; /* current position in buffer */
unsigned int size; /* current size */
unsigned int len; /* total length of buffer */
int stop; /* stop flag */
int error; /* error code */
};
#define SNDRV_INFO_CONTENT_TEXT 0
#define SNDRV_INFO_CONTENT_DATA 1
struct snd_info_entry;
struct snd_info_entry_text {
void (*read) (struct snd_info_entry *entry, struct snd_info_buffer *buffer);
void (*write) (struct snd_info_entry *entry, struct snd_info_buffer *buffer);
};
struct snd_info_entry_ops {
int (*open) (struct snd_info_entry *entry,
unsigned short mode, void **file_private_data);
int (*release) (struct snd_info_entry * entry,
unsigned short mode, void *file_private_data);
long (*read) (struct snd_info_entry *entry, void *file_private_data,
struct file * file, char __user *buf,
unsigned long count, unsigned long pos);
long (*write) (struct snd_info_entry *entry, void *file_private_data,
struct file * file, const char __user *buf,
unsigned long count, unsigned long pos);
long long (*llseek) (struct snd_info_entry *entry, void *file_private_data,
struct file * file, long long offset, int orig);
unsigned int (*poll) (struct snd_info_entry *entry, void *file_private_data,
struct file * file, poll_table * wait);
int (*ioctl) (struct snd_info_entry *entry, void *file_private_data,
struct file * file, unsigned int cmd, unsigned long arg);
int (*mmap) (struct snd_info_entry *entry, void *file_private_data,
struct inode * inode, struct file * file,
struct vm_area_struct * vma);
};
struct snd_info_entry {
const char *name;
mode_t mode;
long size;
unsigned short content;
unsigned short disconnected: 1;
union {
struct snd_info_entry_text text;
struct snd_info_entry_ops *ops;
} c;
struct snd_info_entry *parent;
struct snd_card *card;
struct module *module;
void *private_data;
void (*private_free)(struct snd_info_entry *entry);
struct proc_dir_entry *p;
struct mutex access;
};
#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
int snd_info_minor_register(void);
int snd_info_minor_unregister(void);
#else
#define snd_info_minor_register() /* NOP */
#define snd_info_minor_unregister() /* NOP */
#endif
#ifdef CONFIG_PROC_FS
extern struct snd_info_entry *snd_seq_root;
#ifdef CONFIG_SND_OSSEMUL
extern struct snd_info_entry *snd_oss_root;
#else
#define snd_oss_root NULL
#endif
int snd_iprintf(struct snd_info_buffer * buffer, char *fmt,...) __attribute__ ((format (printf, 2, 3)));
int snd_info_init(void);
int snd_info_done(void);
int snd_info_get_line(struct snd_info_buffer * buffer, char *line, int len);
char *snd_info_get_str(char *dest, char *src, int len);
struct snd_info_entry *snd_info_create_module_entry(struct module * module,
const char *name,
struct snd_info_entry * parent);
struct snd_info_entry *snd_info_create_card_entry(struct snd_card * card,
const char *name,
struct snd_info_entry * parent);
void snd_info_free_entry(struct snd_info_entry * entry);
int snd_info_store_text(struct snd_info_entry * entry);
int snd_info_restore_text(struct snd_info_entry * entry);
int snd_info_card_create(struct snd_card * card);
int snd_info_card_register(struct snd_card * card);
int snd_info_card_free(struct snd_card * card);
int snd_info_register(struct snd_info_entry * entry);
int snd_info_unregister(struct snd_info_entry * entry);
/* for card drivers */
int snd_card_proc_new(struct snd_card *card, const char *name, struct snd_info_entry **entryp);
static inline void snd_info_set_text_ops(struct snd_info_entry *entry,
void *private_data,
void (*read)(struct snd_info_entry *, struct snd_info_buffer *))
{
entry->private_data = private_data;
entry->c.text.read = read;
}
int snd_info_check_reserved_words(const char *str);
#else
#define snd_seq_root NULL
#define snd_oss_root NULL
static inline int snd_iprintf(struct snd_info_buffer * buffer, char *fmt,...) { return 0; }
static inline int snd_info_init(void) { return 0; }
static inline int snd_info_done(void) { return 0; }
static inline int snd_info_get_line(struct snd_info_buffer * buffer, char *line, int len) { return 0; }
static inline char *snd_info_get_str(char *dest, char *src, int len) { return NULL; }
static inline struct snd_info_entry *snd_info_create_module_entry(struct module * module, const char *name, struct snd_info_entry * parent) { return NULL; }
static inline struct snd_info_entry *snd_info_create_card_entry(struct snd_card * card, const char *name, struct snd_info_entry * parent) { return NULL; }
static inline void snd_info_free_entry(struct snd_info_entry * entry) { ; }
static inline int snd_info_card_create(struct snd_card * card) { return 0; }
static inline int snd_info_card_register(struct snd_card * card) { return 0; }
static inline int snd_info_card_free(struct snd_card * card) { return 0; }
static inline int snd_info_register(struct snd_info_entry * entry) { return 0; }
static inline int snd_info_unregister(struct snd_info_entry * entry) { return 0; }
static inline int snd_card_proc_new(struct snd_card *card, const char *name,
struct snd_info_entry **entryp) { return -EINVAL; }
static inline void snd_info_set_text_ops(struct snd_info_entry *entry __attribute__((unused)),
void *private_data,
void (*read)(struct snd_info_entry *, struct snd_info_buffer *)) {}
static inline int snd_info_check_reserved_words(const char *str) { return 1; }
#endif
/*
* OSS info part
*/
#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
#define SNDRV_OSS_INFO_DEV_AUDIO 0
#define SNDRV_OSS_INFO_DEV_SYNTH 1
#define SNDRV_OSS_INFO_DEV_MIDI 2
#define SNDRV_OSS_INFO_DEV_TIMERS 4
#define SNDRV_OSS_INFO_DEV_MIXERS 5
#define SNDRV_OSS_INFO_DEV_COUNT 6
int snd_oss_info_register(int dev, int num, char *string);
#define snd_oss_info_unregister(dev, num) snd_oss_info_register(dev, num, NULL)
#endif /* CONFIG_SND_OSSEMUL && CONFIG_PROC_FS */
#endif /* __SOUND_INFO_H */
|
