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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 */ | |
7e4eeec8 TI |
30 | unsigned int curr; /* current position in buffer */ |
31 | unsigned int size; /* current size */ | |
32 | unsigned int len; /* total length of buffer */ | |
1da177e4 LT |
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 { | |
24c1f931 TI |
43 | void (*read) (struct snd_info_entry *entry, struct snd_info_buffer *buffer); |
44 | void (*write) (struct snd_info_entry *entry, struct snd_info_buffer *buffer); | |
1da177e4 LT |
45 | }; |
46 | ||
47 | struct snd_info_entry_ops { | |
24c1f931 | 48 | int (*open) (struct snd_info_entry *entry, |
1da177e4 | 49 | unsigned short mode, void **file_private_data); |
24c1f931 | 50 | int (*release) (struct snd_info_entry * entry, |
1da177e4 | 51 | unsigned short mode, void *file_private_data); |
24c1f931 | 52 | long (*read) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 LT |
53 | struct file * file, char __user *buf, |
54 | unsigned long count, unsigned long pos); | |
24c1f931 | 55 | long (*write) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 LT |
56 | struct file * file, const char __user *buf, |
57 | unsigned long count, unsigned long pos); | |
24c1f931 | 58 | long long (*llseek) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 | 59 | struct file * file, long long offset, int orig); |
24c1f931 | 60 | unsigned int (*poll) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 | 61 | struct file * file, poll_table * wait); |
24c1f931 | 62 | int (*ioctl) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 | 63 | struct file * file, unsigned int cmd, unsigned long arg); |
24c1f931 | 64 | int (*mmap) (struct snd_info_entry *entry, void *file_private_data, |
1da177e4 LT |
65 | struct inode * inode, struct file * file, |
66 | struct vm_area_struct * vma); | |
67 | }; | |
68 | ||
69 | struct snd_info_entry { | |
70 | const char *name; | |
71 | mode_t mode; | |
72 | long size; | |
73 | unsigned short content; | |
74 | unsigned short disconnected: 1; | |
75 | union { | |
76 | struct snd_info_entry_text text; | |
77 | struct snd_info_entry_ops *ops; | |
78 | } c; | |
24c1f931 TI |
79 | struct snd_info_entry *parent; |
80 | struct snd_card *card; | |
1da177e4 LT |
81 | struct module *module; |
82 | void *private_data; | |
24c1f931 | 83 | void (*private_free)(struct snd_info_entry *entry); |
1da177e4 | 84 | struct proc_dir_entry *p; |
1a60d4c5 | 85 | struct mutex access; |
1da177e4 LT |
86 | }; |
87 | ||
1da177e4 | 88 | #if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) |
24c1f931 TI |
89 | int snd_info_minor_register(void); |
90 | int snd_info_minor_unregister(void); | |
1da177e4 LT |
91 | #else |
92 | #define snd_info_minor_register() /* NOP */ | |
93 | #define snd_info_minor_unregister() /* NOP */ | |
94 | #endif | |
95 | ||
96 | ||
97 | #ifdef CONFIG_PROC_FS | |
98 | ||
24c1f931 | 99 | extern struct snd_info_entry *snd_seq_root; |
1da177e4 | 100 | #ifdef CONFIG_SND_OSSEMUL |
24c1f931 | 101 | extern struct snd_info_entry *snd_oss_root; |
1da177e4 LT |
102 | #else |
103 | #define snd_oss_root NULL | |
104 | #endif | |
105 | ||
24c1f931 | 106 | int snd_iprintf(struct snd_info_buffer * buffer, char *fmt,...) __attribute__ ((format (printf, 2, 3))); |
1da177e4 LT |
107 | int snd_info_init(void); |
108 | int snd_info_done(void); | |
109 | ||
24c1f931 | 110 | int snd_info_get_line(struct snd_info_buffer * buffer, char *line, int len); |
1da177e4 | 111 | char *snd_info_get_str(char *dest, char *src, int len); |
24c1f931 | 112 | struct snd_info_entry *snd_info_create_module_entry(struct module * module, |
1da177e4 | 113 | const char *name, |
24c1f931 TI |
114 | struct snd_info_entry * parent); |
115 | struct snd_info_entry *snd_info_create_card_entry(struct snd_card * card, | |
1da177e4 | 116 | const char *name, |
24c1f931 TI |
117 | struct snd_info_entry * parent); |
118 | void snd_info_free_entry(struct snd_info_entry * entry); | |
119 | int snd_info_store_text(struct snd_info_entry * entry); | |
120 | int snd_info_restore_text(struct snd_info_entry * entry); | |
1da177e4 | 121 | |
24c1f931 TI |
122 | int snd_info_card_create(struct snd_card * card); |
123 | int snd_info_card_register(struct snd_card * card); | |
124 | int snd_info_card_free(struct snd_card * card); | |
125 | int snd_info_register(struct snd_info_entry * entry); | |
126 | int snd_info_unregister(struct snd_info_entry * entry); | |
1da177e4 LT |
127 | |
128 | /* for card drivers */ | |
24c1f931 | 129 | int snd_card_proc_new(struct snd_card *card, const char *name, struct snd_info_entry **entryp); |
1da177e4 | 130 | |
24c1f931 | 131 | static inline void snd_info_set_text_ops(struct snd_info_entry *entry, |
1da177e4 | 132 | void *private_data, |
24c1f931 | 133 | void (*read)(struct snd_info_entry *, struct snd_info_buffer *)) |
1da177e4 LT |
134 | { |
135 | entry->private_data = private_data; | |
1da177e4 LT |
136 | entry->c.text.read = read; |
137 | } | |
138 | ||
e28563cc | 139 | int snd_info_check_reserved_words(const char *str); |
1da177e4 LT |
140 | |
141 | #else | |
142 | ||
143 | #define snd_seq_root NULL | |
144 | #define snd_oss_root NULL | |
145 | ||
24c1f931 | 146 | static inline int snd_iprintf(struct snd_info_buffer * buffer, char *fmt,...) { return 0; } |
1da177e4 LT |
147 | static inline int snd_info_init(void) { return 0; } |
148 | static inline int snd_info_done(void) { return 0; } | |
149 | ||
24c1f931 | 150 | static inline int snd_info_get_line(struct snd_info_buffer * buffer, char *line, int len) { return 0; } |
1da177e4 | 151 | static inline char *snd_info_get_str(char *dest, char *src, int len) { return NULL; } |
24c1f931 TI |
152 | static inline struct snd_info_entry *snd_info_create_module_entry(struct module * module, const char *name, struct snd_info_entry * parent) { return NULL; } |
153 | 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; } | |
154 | static inline void snd_info_free_entry(struct snd_info_entry * entry) { ; } | |
1da177e4 | 155 | |
24c1f931 TI |
156 | static inline int snd_info_card_create(struct snd_card * card) { return 0; } |
157 | static inline int snd_info_card_register(struct snd_card * card) { return 0; } | |
158 | static inline int snd_info_card_free(struct snd_card * card) { return 0; } | |
159 | static inline int snd_info_register(struct snd_info_entry * entry) { return 0; } | |
160 | static inline int snd_info_unregister(struct snd_info_entry * entry) { return 0; } | |
1da177e4 | 161 | |
e28563cc TI |
162 | static inline int snd_card_proc_new(struct snd_card *card, const char *name, |
163 | struct snd_info_entry **entryp) { return -EINVAL; } | |
164 | static inline void snd_info_set_text_ops(struct snd_info_entry *entry __attribute__((unused)), | |
165 | void *private_data, | |
e28563cc TI |
166 | void (*read)(struct snd_info_entry *, struct snd_info_buffer *)) {} |
167 | ||
168 | static inline int snd_info_check_reserved_words(const char *str) { return 1; } | |
1da177e4 LT |
169 | |
170 | #endif | |
171 | ||
172 | /* | |
173 | * OSS info part | |
174 | */ | |
175 | ||
176 | #if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) | |
177 | ||
178 | #define SNDRV_OSS_INFO_DEV_AUDIO 0 | |
179 | #define SNDRV_OSS_INFO_DEV_SYNTH 1 | |
180 | #define SNDRV_OSS_INFO_DEV_MIDI 2 | |
181 | #define SNDRV_OSS_INFO_DEV_TIMERS 4 | |
182 | #define SNDRV_OSS_INFO_DEV_MIXERS 5 | |
183 | ||
184 | #define SNDRV_OSS_INFO_DEV_COUNT 6 | |
185 | ||
24c1f931 | 186 | int snd_oss_info_register(int dev, int num, char *string); |
1da177e4 LT |
187 | #define snd_oss_info_unregister(dev, num) snd_oss_info_register(dev, num, NULL) |
188 | ||
189 | #endif /* CONFIG_SND_OSSEMUL && CONFIG_PROC_FS */ | |
190 | ||
191 | #endif /* __SOUND_INFO_H */ |