Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __SOUND_INFO_H |
| 2 | #define __SOUND_INFO_H |
| 3 | |
| 4 | /* |
| 5 | * Header file for info interface |
Jaroslav Kysela | c1017a4 | 2007-10-15 09:50:19 +0200 | [diff] [blame] | 6 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 */ |
Takashi Iwai | 7e4eeec | 2006-04-28 15:13:40 +0200 | [diff] [blame] | 30 | unsigned int curr; /* current position in buffer */ |
| 31 | unsigned int size; /* current size */ |
| 32 | unsigned int len; /* total length of buffer */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | int stop; /* stop flag */ |
| 34 | int error; /* error code */ |
| 35 | }; |
| 36 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 { |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | }; |
| 48 | |
| 49 | struct snd_info_entry_ops { |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 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); |
Takashi Iwai | 24e4a12 | 2010-04-13 11:22:01 +0200 | [diff] [blame] | 54 | ssize_t (*read)(struct snd_info_entry *entry, void *file_private_data, |
| 55 | struct file *file, char __user *buf, |
| 56 | size_t count, loff_t pos); |
| 57 | ssize_t (*write)(struct snd_info_entry *entry, void *file_private_data, |
| 58 | struct file *file, const char __user *buf, |
| 59 | size_t count, loff_t pos); |
| 60 | loff_t (*llseek)(struct snd_info_entry *entry, |
| 61 | void *file_private_data, struct file *file, |
| 62 | loff_t offset, int orig); |
| 63 | unsigned int (*poll)(struct snd_info_entry *entry, |
| 64 | void *file_private_data, struct file *file, |
| 65 | poll_table *wait); |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | }; |
| 72 | |
| 73 | struct snd_info_entry { |
| 74 | const char *name; |
| 75 | mode_t mode; |
| 76 | long size; |
| 77 | unsigned short content; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | union { |
| 79 | struct snd_info_entry_text text; |
| 80 | struct snd_info_entry_ops *ops; |
| 81 | } c; |
Takashi Iwai | 24c1f93 | 2005-11-17 13:58:48 +0100 | [diff] [blame] | 82 | struct snd_info_entry *parent; |
| 83 | struct snd_card *card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | struct module *module; |
| 85 | void *private_data; |
Takashi Iwai | 24c1f93 | 2005-11-17 13:58:48 +0100 | [diff] [blame] | 86 | void (*private_free)(struct snd_info_entry *entry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | struct proc_dir_entry *p; |
Ingo Molnar | 1a60d4c | 2006-01-16 16:29:08 +0100 | [diff] [blame] | 88 | struct mutex access; |
Takashi Iwai | 746d4a0 | 2006-06-23 14:37:59 +0200 | [diff] [blame] | 89 | struct list_head children; |
| 90 | struct list_head list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | }; |
| 92 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | #if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) |
Takashi Iwai | 24c1f93 | 2005-11-17 13:58:48 +0100 | [diff] [blame] | 94 | int snd_info_minor_register(void); |
| 95 | int snd_info_minor_unregister(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | #else |
| 97 | #define snd_info_minor_register() /* NOP */ |
| 98 | #define snd_info_minor_unregister() /* NOP */ |
| 99 | #endif |
| 100 | |
| 101 | |
| 102 | #ifdef CONFIG_PROC_FS |
| 103 | |
Takashi Iwai | 24c1f93 | 2005-11-17 13:58:48 +0100 | [diff] [blame] | 104 | extern struct snd_info_entry *snd_seq_root; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | #ifdef CONFIG_SND_OSSEMUL |
Takashi Iwai | 24c1f93 | 2005-11-17 13:58:48 +0100 | [diff] [blame] | 106 | extern struct snd_info_entry *snd_oss_root; |
Marcin Ślusarz | 36b9cdf | 2007-12-14 12:58:45 +0100 | [diff] [blame] | 107 | void snd_card_info_read_oss(struct snd_info_buffer *buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | #else |
| 109 | #define snd_oss_root NULL |
Marcin Ślusarz | 36b9cdf | 2007-12-14 12:58:45 +0100 | [diff] [blame] | 110 | static inline void snd_card_info_read_oss(struct snd_info_buffer *buffer) {} |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | #endif |
| 112 | |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 113 | __printf(2, 3) |
| 114 | int snd_iprintf(struct snd_info_buffer *buffer, const char *fmt, ...); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | int snd_info_init(void); |
| 116 | int snd_info_done(void); |
| 117 | |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 118 | int snd_info_get_line(struct snd_info_buffer *buffer, char *line, int len); |
Takashi Iwai | 4f7454a | 2009-09-08 14:29:58 +0200 | [diff] [blame] | 119 | const char *snd_info_get_str(char *dest, const char *src, int len); |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 120 | struct snd_info_entry *snd_info_create_module_entry(struct module *module, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | const char *name, |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 122 | struct snd_info_entry *parent); |
| 123 | struct snd_info_entry *snd_info_create_card_entry(struct snd_card *card, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | const char *name, |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | |
| 137 | /* for card drivers */ |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 138 | int snd_card_proc_new(struct snd_card *card, const char *name, |
| 139 | struct snd_info_entry **entryp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | |
Takashi Iwai | 24c1f93 | 2005-11-17 13:58:48 +0100 | [diff] [blame] | 141 | static inline void snd_info_set_text_ops(struct snd_info_entry *entry, |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 142 | void *private_data, |
| 143 | void (*read)(struct snd_info_entry *, struct snd_info_buffer *)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | { |
| 145 | entry->private_data = private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | entry->c.text.read = read; |
| 147 | } |
| 148 | |
Takashi Iwai | e28563c | 2005-12-01 10:42:42 +0100 | [diff] [blame] | 149 | int snd_info_check_reserved_words(const char *str); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | |
| 151 | #else |
| 152 | |
| 153 | #define snd_seq_root NULL |
| 154 | #define snd_oss_root NULL |
| 155 | |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 156 | static inline int snd_iprintf(struct snd_info_buffer *buffer, char *fmt, ...) { return 0; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | static inline int snd_info_init(void) { return 0; } |
| 158 | static inline int snd_info_done(void) { return 0; } |
| 159 | |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 160 | static inline int snd_info_get_line(struct snd_info_buffer *buffer, char *line, int len) { return 0; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | static inline char *snd_info_get_str(char *dest, char *src, int len) { return NULL; } |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 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) { ; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | |
Jaroslav Kysela | fd64138 | 2008-11-12 16:53:47 +0100 | [diff] [blame] | 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; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | |
Takashi Iwai | e28563c | 2005-12-01 10:42:42 +0100 | [diff] [blame] | 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)), |
| 176 | void *private_data, |
Takashi Iwai | e28563c | 2005-12-01 10:42:42 +0100 | [diff] [blame] | 177 | void (*read)(struct snd_info_entry *, struct snd_info_buffer *)) {} |
| 178 | |
| 179 | static inline int snd_info_check_reserved_words(const char *str) { return 1; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | |
| 181 | #endif |
| 182 | |
| 183 | /* |
| 184 | * OSS info part |
| 185 | */ |
| 186 | |
| 187 | #if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) |
| 188 | |
| 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 |
| 194 | |
| 195 | #define SNDRV_OSS_INFO_DEV_COUNT 6 |
| 196 | |
Takashi Iwai | 24c1f93 | 2005-11-17 13:58:48 +0100 | [diff] [blame] | 197 | int snd_oss_info_register(int dev, int num, char *string); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | #define snd_oss_info_unregister(dev, num) snd_oss_info_register(dev, num, NULL) |
| 199 | |
| 200 | #endif /* CONFIG_SND_OSSEMUL && CONFIG_PROC_FS */ |
| 201 | |
| 202 | #endif /* __SOUND_INFO_H */ |