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1da177e4 LT |
1 | #ifndef __SOUND_SEQ_INSTR_H |
2 | #define __SOUND_SEQ_INSTR_H | |
3 | ||
4 | /* | |
5 | * Main kernel header file for the ALSA sequencer | |
c1017a4c | 6 | * Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz> |
1da177e4 LT |
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 | #include "seq_kernel.h" | |
25 | ||
26 | /* Instrument cluster */ | |
c7e0b5bf | 27 | struct snd_seq_kcluster { |
1da177e4 LT |
28 | snd_seq_instr_cluster_t cluster; |
29 | char name[32]; | |
30 | int priority; | |
c7e0b5bf TI |
31 | struct snd_seq_kcluster *next; |
32 | }; | |
1da177e4 LT |
33 | |
34 | /* return pointer to private data */ | |
c7e0b5bf | 35 | #define KINSTR_DATA(kinstr) (void *)(((char *)kinstr) + sizeof(struct snd_seq_kinstr)) |
1da177e4 LT |
36 | |
37 | /* Instrument structure */ | |
c7e0b5bf TI |
38 | struct snd_seq_kinstr { |
39 | struct snd_seq_instr instr; | |
1da177e4 LT |
40 | char name[32]; |
41 | int type; /* instrument type */ | |
42 | int use; /* use count */ | |
43 | int busy; /* not useable */ | |
44 | int add_len; /* additional length */ | |
c7e0b5bf TI |
45 | struct snd_seq_kinstr_ops *ops; /* operations */ |
46 | struct snd_seq_kinstr *next; | |
47 | }; | |
1da177e4 LT |
48 | |
49 | #define SNDRV_SEQ_INSTR_HASH_SIZE 32 | |
50 | ||
51 | /* Instrument flags */ | |
52 | #define SNDRV_SEQ_INSTR_FLG_DIRECT (1<<0) /* accept only direct events */ | |
53 | ||
54 | /* List of all instruments */ | |
c7e0b5bf TI |
55 | struct snd_seq_kinstr_list { |
56 | struct snd_seq_kinstr *hash[SNDRV_SEQ_INSTR_HASH_SIZE]; | |
1da177e4 LT |
57 | int count; /* count of all instruments */ |
58 | ||
c7e0b5bf | 59 | struct snd_seq_kcluster *chash[SNDRV_SEQ_INSTR_HASH_SIZE]; |
1da177e4 LT |
60 | int ccount; /* count of all clusters */ |
61 | ||
62 | int owner; /* current owner of the instrument list */ | |
63 | unsigned int flags; | |
64 | ||
65 | spinlock_t lock; | |
66 | spinlock_t ops_lock; | |
1a60d4c5 | 67 | struct mutex ops_mutex; |
1da177e4 | 68 | unsigned long ops_flags; |
c7e0b5bf | 69 | }; |
1da177e4 LT |
70 | |
71 | #define SNDRV_SEQ_INSTR_NOTIFY_REMOVE 0 | |
72 | #define SNDRV_SEQ_INSTR_NOTIFY_CHANGE 1 | |
73 | ||
74 | struct snd_seq_kinstr_ops { | |
75 | void *private_data; | |
76 | long add_len; /* additional length */ | |
77 | char *instr_type; | |
78 | int (*info)(void *private_data, char *info_data, long len); | |
c7e0b5bf | 79 | int (*put)(void *private_data, struct snd_seq_kinstr *kinstr, |
1da177e4 | 80 | char __user *instr_data, long len, int atomic, int cmd); |
c7e0b5bf | 81 | int (*get)(void *private_data, struct snd_seq_kinstr *kinstr, |
1da177e4 | 82 | char __user *instr_data, long len, int atomic, int cmd); |
c7e0b5bf TI |
83 | int (*get_size)(void *private_data, struct snd_seq_kinstr *kinstr, long *size); |
84 | int (*remove)(void *private_data, struct snd_seq_kinstr *kinstr, int atomic); | |
85 | void (*notify)(void *private_data, struct snd_seq_kinstr *kinstr, int what); | |
1da177e4 LT |
86 | struct snd_seq_kinstr_ops *next; |
87 | }; | |
88 | ||
89 | ||
90 | /* instrument operations */ | |
c7e0b5bf TI |
91 | struct snd_seq_kinstr_list *snd_seq_instr_list_new(void); |
92 | void snd_seq_instr_list_free(struct snd_seq_kinstr_list **list); | |
93 | int snd_seq_instr_list_free_cond(struct snd_seq_kinstr_list *list, | |
94 | struct snd_seq_instr_header *ifree, | |
1da177e4 LT |
95 | int client, |
96 | int atomic); | |
c7e0b5bf TI |
97 | struct snd_seq_kinstr *snd_seq_instr_find(struct snd_seq_kinstr_list *list, |
98 | struct snd_seq_instr *instr, | |
99 | int exact, | |
100 | int follow_alias); | |
101 | void snd_seq_instr_free_use(struct snd_seq_kinstr_list *list, | |
102 | struct snd_seq_kinstr *instr); | |
103 | int snd_seq_instr_event(struct snd_seq_kinstr_ops *ops, | |
104 | struct snd_seq_kinstr_list *list, | |
105 | struct snd_seq_event *ev, | |
1da177e4 LT |
106 | int client, |
107 | int atomic, | |
108 | int hop); | |
109 | ||
110 | #endif /* __SOUND_SEQ_INSTR_H */ |