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1da177e4 LT |
1 | #ifndef __SOUND_INFO_H |
2 | #define __SOUND_INFO_H | |
3 | ||
4 | /* | |
5 | * Header file for info interface | |
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 <linux/poll.h> | |
26 | ||
27 | /* buffer for information */ | |
28 | struct snd_info_buffer { | |
29 | char *buffer; /* pointer to begin of buffer */ | |
30 | char *curr; /* current position in buffer */ | |
31 | unsigned long size; /* current size */ | |
32 | unsigned long len; /* total length of buffer */ | |
33 | int stop; /* stop flag */ | |
34 | int error; /* error code */ | |
35 | }; | |
36 | ||
1da177e4 LT |
37 | #define SNDRV_INFO_CONTENT_TEXT 0 |
38 | #define SNDRV_INFO_CONTENT_DATA 1 | |
39 | ||
40 | struct snd_info_entry; | |
41 | ||
42 | struct snd_info_entry_text { | |
43 | unsigned long read_size; | |
44 | unsigned long write_size; | |
24c1f931 TI |
45 | void (*read) (struct snd_info_entry *entry, struct snd_info_buffer *buffer); |
46 | void (*write) (struct snd_info_entry *entry, struct snd_info_buffer *buffer); | |
1da177e4 LT |
47 | }; |
48 | ||
49 | struct snd_info_entry_ops { | |
24c1f931 | 50 | int (*open) (struct snd_info_entry *entry, |
1da177e4 | 51 | unsigned short mode, void **file_private_data); |
24c1f931 | 52 | int (*release) (struct snd_info_entry * entry, |
1da177e4 | 53 | unsigned short mode, void *file_private_data); |
24c1f931 | 54 | long (*read) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 LT |
55 | struct file * file, char __user *buf, |
56 | unsigned long count, unsigned long pos); | |
24c1f931 | 57 | long (*write) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 LT |
58 | struct file * file, const char __user *buf, |
59 | unsigned long count, unsigned long pos); | |
24c1f931 | 60 | long long (*llseek) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 | 61 | struct file * file, long long offset, int orig); |
24c1f931 | 62 | unsigned int (*poll) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 | 63 | struct file * file, poll_table * wait); |
24c1f931 | 64 | int (*ioctl) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 | 65 | struct file * file, unsigned int cmd, unsigned long arg); |
24c1f931 | 66 | int (*mmap) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 LT |
67 | struct inode * inode, struct file * file, |
68 | struct vm_area_struct * vma); | |
69 | }; | |
70 | ||
71 | struct snd_info_entry { | |
72 | const char *name; | |
73 | mode_t mode; | |
74 | long size; | |
75 | unsigned short content; | |
76 | unsigned short disconnected: 1; | |
77 | union { | |
78 | struct snd_info_entry_text text; | |
79 | struct snd_info_entry_ops *ops; | |
80 | } c; | |
24c1f931 TI |
81 | struct snd_info_entry *parent; |
82 | struct snd_card *card; | |
1da177e4 LT |
83 | struct module *module; |
84 | void *private_data; | |
24c1f931 | 85 | void (*private_free)(struct snd_info_entry *entry); |
1da177e4 LT |
86 | struct proc_dir_entry *p; |
87 | struct semaphore access; | |
88 | }; | |
89 | ||
1da177e4 | 90 | #if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) |
24c1f931 TI |
91 | int snd_info_minor_register(void); |
92 | int snd_info_minor_unregister(void); | |
1da177e4 LT |
93 | #else |
94 | #define snd_info_minor_register() /* NOP */ | |
95 | #define snd_info_minor_unregister() /* NOP */ | |
96 | #endif | |
97 | ||
98 | ||
99 | #ifdef CONFIG_PROC_FS | |
100 | ||
24c1f931 | 101 | extern struct snd_info_entry *snd_seq_root; |
1da177e4 | 102 | #ifdef CONFIG_SND_OSSEMUL |
24c1f931 | 103 | extern struct snd_info_entry *snd_oss_root; |
1da177e4 LT |
104 | #else |
105 | #define snd_oss_root NULL | |
106 | #endif | |
107 | ||
24c1f931 | 108 | int snd_iprintf(struct snd_info_buffer * buffer, char *fmt,...) __attribute__ ((format (printf, 2, 3))); |
1da177e4 LT |
109 | int snd_info_init(void); |
110 | int snd_info_done(void); | |
111 | ||
24c1f931 | 112 | int snd_info_get_line(struct snd_info_buffer * buffer, char *line, int len); |
1da177e4 | 113 | char *snd_info_get_str(char *dest, char *src, int len); |
24c1f931 | 114 | struct snd_info_entry *snd_info_create_module_entry(struct module * module, |
1da177e4 | 115 | const char *name, |
24c1f931 TI |
116 | struct snd_info_entry * parent); |
117 | struct snd_info_entry *snd_info_create_card_entry(struct snd_card * card, | |
1da177e4 | 118 | const char *name, |
24c1f931 TI |
119 | struct snd_info_entry * parent); |
120 | void snd_info_free_entry(struct snd_info_entry * entry); | |
121 | int snd_info_store_text(struct snd_info_entry * entry); | |
122 | int snd_info_restore_text(struct snd_info_entry * entry); | |
1da177e4 | 123 | |
24c1f931 TI |
124 | int snd_info_card_create(struct snd_card * card); |
125 | int snd_info_card_register(struct snd_card * card); | |
126 | int snd_info_card_free(struct snd_card * card); | |
127 | int snd_info_register(struct snd_info_entry * entry); | |
128 | int snd_info_unregister(struct snd_info_entry * entry); | |
1da177e4 LT |
129 | |
130 | /* for card drivers */ | |
24c1f931 | 131 | int snd_card_proc_new(struct snd_card *card, const char *name, struct snd_info_entry **entryp); |
1da177e4 | 132 | |
24c1f931 | 133 | static inline void snd_info_set_text_ops(struct snd_info_entry *entry, |
1da177e4 LT |
134 | void *private_data, |
135 | long read_size, | |
24c1f931 | 136 | void (*read)(struct snd_info_entry *, struct snd_info_buffer *)) |
1da177e4 LT |
137 | { |
138 | entry->private_data = private_data; | |
139 | entry->c.text.read_size = read_size; | |
140 | entry->c.text.read = read; | |
141 | } | |
142 | ||
e28563cc | 143 | int snd_info_check_reserved_words(const char *str); |
1da177e4 LT |
144 | |
145 | #else | |
146 | ||
147 | #define snd_seq_root NULL | |
148 | #define snd_oss_root NULL | |
149 | ||
24c1f931 | 150 | static inline int snd_iprintf(struct snd_info_buffer * buffer, char *fmt,...) { return 0; } |
1da177e4 LT |
151 | static inline int snd_info_init(void) { return 0; } |
152 | static inline int snd_info_done(void) { return 0; } | |
153 | ||
24c1f931 | 154 | static inline int snd_info_get_line(struct snd_info_buffer * buffer, char *line, int len) { return 0; } |
1da177e4 | 155 | static inline char *snd_info_get_str(char *dest, char *src, int len) { return NULL; } |
24c1f931 TI |
156 | static inline struct snd_info_entry *snd_info_create_module_entry(struct module * module, const char *name, struct snd_info_entry * parent) { return NULL; } |
157 | 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; } | |
158 | static inline void snd_info_free_entry(struct snd_info_entry * entry) { ; } | |
1da177e4 | 159 | |
24c1f931 TI |
160 | static inline int snd_info_card_create(struct snd_card * card) { return 0; } |
161 | static inline int snd_info_card_register(struct snd_card * card) { return 0; } | |
162 | static inline int snd_info_card_free(struct snd_card * card) { return 0; } | |
163 | static inline int snd_info_register(struct snd_info_entry * entry) { return 0; } | |
164 | static inline int snd_info_unregister(struct snd_info_entry * entry) { return 0; } | |
1da177e4 | 165 | |
e28563cc TI |
166 | static inline int snd_card_proc_new(struct snd_card *card, const char *name, |
167 | struct snd_info_entry **entryp) { return -EINVAL; } | |
168 | static inline void snd_info_set_text_ops(struct snd_info_entry *entry __attribute__((unused)), | |
169 | void *private_data, | |
170 | long read_size, | |
171 | void (*read)(struct snd_info_entry *, struct snd_info_buffer *)) {} | |
172 | ||
173 | static inline int snd_info_check_reserved_words(const char *str) { return 1; } | |
1da177e4 LT |
174 | |
175 | #endif | |
176 | ||
177 | /* | |
178 | * OSS info part | |
179 | */ | |
180 | ||
181 | #if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) | |
182 | ||
183 | #define SNDRV_OSS_INFO_DEV_AUDIO 0 | |
184 | #define SNDRV_OSS_INFO_DEV_SYNTH 1 | |
185 | #define SNDRV_OSS_INFO_DEV_MIDI 2 | |
186 | #define SNDRV_OSS_INFO_DEV_TIMERS 4 | |
187 | #define SNDRV_OSS_INFO_DEV_MIXERS 5 | |
188 | ||
189 | #define SNDRV_OSS_INFO_DEV_COUNT 6 | |
190 | ||
24c1f931 | 191 | int snd_oss_info_register(int dev, int num, char *string); |
1da177e4 LT |
192 | #define snd_oss_info_unregister(dev, num) snd_oss_info_register(dev, num, NULL) |
193 | ||
194 | #endif /* CONFIG_SND_OSSEMUL && CONFIG_PROC_FS */ | |
195 | ||
196 | #endif /* __SOUND_INFO_H */ |