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