5 * Header file for info interface
6 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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.
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.
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
25 #include <linux/poll.h>
27 /* buffer for information */
28 struct snd_info_buffer
{
29 char *buffer
; /* pointer to begin of buffer */
30 unsigned int curr
; /* current position in buffer */
31 unsigned int size
; /* current size */
32 unsigned int len
; /* total length of buffer */
33 int stop
; /* stop flag */
34 int error
; /* error code */
37 #define SNDRV_INFO_CONTENT_TEXT 0
38 #define SNDRV_INFO_CONTENT_DATA 1
40 struct snd_info_entry
;
42 struct snd_info_entry_text
{
43 void (*read
)(struct snd_info_entry
*entry
,
44 struct snd_info_buffer
*buffer
);
45 void (*write
)(struct snd_info_entry
*entry
,
46 struct snd_info_buffer
*buffer
);
49 struct snd_info_entry_ops
{
50 int (*open
)(struct snd_info_entry
*entry
,
51 unsigned short mode
, void **file_private_data
);
52 int (*release
)(struct snd_info_entry
*entry
,
53 unsigned short mode
, void *file_private_data
);
54 long (*read
)(struct snd_info_entry
*entry
, void *file_private_data
,
55 struct file
*file
, char __user
*buf
,
56 unsigned long count
, unsigned long pos
);
57 long (*write
)(struct snd_info_entry
*entry
, void *file_private_data
,
58 struct file
*file
, const char __user
*buf
,
59 unsigned long count
, unsigned long pos
);
60 long long (*llseek
)(struct snd_info_entry
*entry
,
61 void *file_private_data
, struct file
*file
,
62 long long offset
, int orig
);
63 unsigned int(*poll
)(struct snd_info_entry
*entry
,
64 void *file_private_data
, struct file
*file
,
66 int (*ioctl
)(struct snd_info_entry
*entry
, void *file_private_data
,
67 struct file
*file
, unsigned int cmd
, unsigned long arg
);
68 int (*mmap
)(struct snd_info_entry
*entry
, void *file_private_data
,
69 struct inode
*inode
, struct file
*file
,
70 struct vm_area_struct
*vma
);
73 struct snd_info_entry
{
77 unsigned short content
;
79 struct snd_info_entry_text text
;
80 struct snd_info_entry_ops
*ops
;
82 struct snd_info_entry
*parent
;
83 struct snd_card
*card
;
84 struct module
*module
;
86 void (*private_free
)(struct snd_info_entry
*entry
);
87 struct proc_dir_entry
*p
;
89 struct list_head children
;
90 struct list_head list
;
93 #if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
94 int snd_info_minor_register(void);
95 int snd_info_minor_unregister(void);
97 #define snd_info_minor_register() /* NOP */
98 #define snd_info_minor_unregister() /* NOP */
102 #ifdef CONFIG_PROC_FS
104 extern struct snd_info_entry
*snd_seq_root
;
105 #ifdef CONFIG_SND_OSSEMUL
106 extern struct snd_info_entry
*snd_oss_root
;
107 void snd_card_info_read_oss(struct snd_info_buffer
*buffer
);
109 #define snd_oss_root NULL
110 static inline void snd_card_info_read_oss(struct snd_info_buffer
*buffer
) {}
113 int snd_iprintf(struct snd_info_buffer
*buffer
, const char *fmt
, ...) \
114 __attribute__ ((format (printf
, 2, 3)));
115 int snd_info_init(void);
116 int snd_info_done(void);
118 int snd_info_get_line(struct snd_info_buffer
*buffer
, char *line
, int len
);
119 const char *snd_info_get_str(char *dest
, const char *src
, int len
);
120 struct snd_info_entry
*snd_info_create_module_entry(struct module
*module
,
122 struct snd_info_entry
*parent
);
123 struct snd_info_entry
*snd_info_create_card_entry(struct snd_card
*card
,
125 struct snd_info_entry
*parent
);
126 void snd_info_free_entry(struct snd_info_entry
*entry
);
127 int snd_info_store_text(struct snd_info_entry
*entry
);
128 int snd_info_restore_text(struct snd_info_entry
*entry
);
130 int snd_info_card_create(struct snd_card
*card
);
131 int snd_info_card_register(struct snd_card
*card
);
132 int snd_info_card_free(struct snd_card
*card
);
133 void snd_info_card_disconnect(struct snd_card
*card
);
134 void snd_info_card_id_change(struct snd_card
*card
);
135 int snd_info_register(struct snd_info_entry
*entry
);
137 /* for card drivers */
138 int snd_card_proc_new(struct snd_card
*card
, const char *name
,
139 struct snd_info_entry
**entryp
);
141 static inline void snd_info_set_text_ops(struct snd_info_entry
*entry
,
143 void (*read
)(struct snd_info_entry
*, struct snd_info_buffer
*))
145 entry
->private_data
= private_data
;
146 entry
->c
.text
.read
= read
;
149 int snd_info_check_reserved_words(const char *str
);
153 #define snd_seq_root NULL
154 #define snd_oss_root NULL
156 static inline int snd_iprintf(struct snd_info_buffer
*buffer
, char *fmt
, ...) { return 0; }
157 static inline int snd_info_init(void) { return 0; }
158 static inline int snd_info_done(void) { return 0; }
160 static inline int snd_info_get_line(struct snd_info_buffer
*buffer
, char *line
, int len
) { return 0; }
161 static inline char *snd_info_get_str(char *dest
, char *src
, int len
) { return NULL
; }
162 static inline struct snd_info_entry
*snd_info_create_module_entry(struct module
*module
, const char *name
, struct snd_info_entry
*parent
) { return NULL
; }
163 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
; }
164 static inline void snd_info_free_entry(struct snd_info_entry
*entry
) { ; }
166 static inline int snd_info_card_create(struct snd_card
*card
) { return 0; }
167 static inline int snd_info_card_register(struct snd_card
*card
) { return 0; }
168 static inline int snd_info_card_free(struct snd_card
*card
) { return 0; }
169 static inline void snd_info_card_disconnect(struct snd_card
*card
) { }
170 static inline void snd_info_card_id_change(struct snd_card
*card
) { }
171 static inline int snd_info_register(struct snd_info_entry
*entry
) { return 0; }
173 static inline int snd_card_proc_new(struct snd_card
*card
, const char *name
,
174 struct snd_info_entry
**entryp
) { return -EINVAL
; }
175 static inline void snd_info_set_text_ops(struct snd_info_entry
*entry
__attribute__((unused
)),
177 void (*read
)(struct snd_info_entry
*, struct snd_info_buffer
*)) {}
179 static inline int snd_info_check_reserved_words(const char *str
) { return 1; }
187 #if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS)
189 #define SNDRV_OSS_INFO_DEV_AUDIO 0
190 #define SNDRV_OSS_INFO_DEV_SYNTH 1
191 #define SNDRV_OSS_INFO_DEV_MIDI 2
192 #define SNDRV_OSS_INFO_DEV_TIMERS 4
193 #define SNDRV_OSS_INFO_DEV_MIXERS 5
195 #define SNDRV_OSS_INFO_DEV_COUNT 6
197 int snd_oss_info_register(int dev
, int num
, char *string
);
198 #define snd_oss_info_unregister(dev, num) snd_oss_info_register(dev, num, NULL)
200 #endif /* CONFIG_SND_OSSEMUL && CONFIG_PROC_FS */
202 #endif /* __SOUND_INFO_H */
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