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- #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 semaphore 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 */
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