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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 | #ifndef __SOUND_SEQ_INSTR_H #define __SOUND_SEQ_INSTR_H /* * Main kernel header file for the ALSA sequencer * Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz> * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include "seq_kernel.h" /* Instrument cluster */ struct snd_seq_kcluster { snd_seq_instr_cluster_t cluster; char name[32]; int priority; struct snd_seq_kcluster *next; }; /* return pointer to private data */ #define KINSTR_DATA(kinstr) (void *)(((char *)kinstr) + sizeof(struct snd_seq_kinstr)) /* Instrument structure */ struct snd_seq_kinstr { struct snd_seq_instr instr; char name[32]; int type; /* instrument type */ int use; /* use count */ int busy; /* not useable */ int add_len; /* additional length */ struct snd_seq_kinstr_ops *ops; /* operations */ struct snd_seq_kinstr *next; }; #define SNDRV_SEQ_INSTR_HASH_SIZE 32 /* Instrument flags */ #define SNDRV_SEQ_INSTR_FLG_DIRECT (1<<0) /* accept only direct events */ /* List of all instruments */ struct snd_seq_kinstr_list { struct snd_seq_kinstr *hash[SNDRV_SEQ_INSTR_HASH_SIZE]; int count; /* count of all instruments */ struct snd_seq_kcluster *chash[SNDRV_SEQ_INSTR_HASH_SIZE]; int ccount; /* count of all clusters */ int owner; /* current owner of the instrument list */ unsigned int flags; spinlock_t lock; spinlock_t ops_lock; struct mutex ops_mutex; unsigned long ops_flags; }; #define SNDRV_SEQ_INSTR_NOTIFY_REMOVE 0 #define SNDRV_SEQ_INSTR_NOTIFY_CHANGE 1 struct snd_seq_kinstr_ops { void *private_data; long add_len; /* additional length */ char *instr_type; int (*info)(void *private_data, char *info_data, long len); int (*put)(void *private_data, struct snd_seq_kinstr *kinstr, char __user *instr_data, long len, int atomic, int cmd); int (*get)(void *private_data, struct snd_seq_kinstr *kinstr, char __user *instr_data, long len, int atomic, int cmd); int (*get_size)(void *private_data, struct snd_seq_kinstr *kinstr, long *size); int (*remove)(void *private_data, struct snd_seq_kinstr *kinstr, int atomic); void (*notify)(void *private_data, struct snd_seq_kinstr *kinstr, int what); struct snd_seq_kinstr_ops *next; }; /* instrument operations */ struct snd_seq_kinstr_list *snd_seq_instr_list_new(void); void snd_seq_instr_list_free(struct snd_seq_kinstr_list **list); int snd_seq_instr_list_free_cond(struct snd_seq_kinstr_list *list, struct snd_seq_instr_header *ifree, int client, int atomic); struct snd_seq_kinstr *snd_seq_instr_find(struct snd_seq_kinstr_list *list, struct snd_seq_instr *instr, int exact, int follow_alias); void snd_seq_instr_free_use(struct snd_seq_kinstr_list *list, struct snd_seq_kinstr *instr); int snd_seq_instr_event(struct snd_seq_kinstr_ops *ops, struct snd_seq_kinstr_list *list, struct snd_seq_event *ev, int client, int atomic, int hop); #endif /* __SOUND_SEQ_INSTR_H */ |