aboutsummaryrefslogtreecommitdiff
path: root/include/sound/seq_instr.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/sound/seq_instr.h')
-rw-r--r--include/sound/seq_instr.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/include/sound/seq_instr.h b/include/sound/seq_instr.h
new file mode 100644
index 00000000000..1a654df4aa9
--- /dev/null
+++ b/include/sound/seq_instr.h
@@ -0,0 +1,112 @@
+#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 */
+typedef struct _snd_seq_kcluster {
+ snd_seq_instr_cluster_t cluster;
+ char name[32];
+ int priority;
+ struct _snd_seq_kcluster *next;
+} snd_seq_kcluster_t;
+
+/* return pointer to private data */
+#define KINSTR_DATA(kinstr) (void *)(((char *)kinstr) + sizeof(snd_seq_kinstr_t))
+
+typedef struct snd_seq_kinstr_ops snd_seq_kinstr_ops_t;
+
+/* Instrument structure */
+typedef struct _snd_seq_kinstr {
+ snd_seq_instr_t instr;
+ char name[32];
+ int type; /* instrument type */
+ int use; /* use count */
+ int busy; /* not useable */
+ int add_len; /* additional length */
+ snd_seq_kinstr_ops_t *ops; /* operations */
+ struct _snd_seq_kinstr *next;
+} snd_seq_kinstr_t;
+
+#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 */
+typedef struct {
+ snd_seq_kinstr_t *hash[SNDRV_SEQ_INSTR_HASH_SIZE];
+ int count; /* count of all instruments */
+
+ snd_seq_kcluster_t *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;
+} snd_seq_kinstr_list_t;
+
+#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, snd_seq_kinstr_t *kinstr,
+ char __user *instr_data, long len, int atomic, int cmd);
+ int (*get)(void *private_data, snd_seq_kinstr_t *kinstr,
+ char __user *instr_data, long len, int atomic, int cmd);
+ int (*get_size)(void *private_data, snd_seq_kinstr_t *kinstr, long *size);
+ int (*remove)(void *private_data, snd_seq_kinstr_t *kinstr, int atomic);
+ void (*notify)(void *private_data, snd_seq_kinstr_t *kinstr, int what);
+ struct snd_seq_kinstr_ops *next;
+};
+
+
+/* instrument operations */
+snd_seq_kinstr_list_t *snd_seq_instr_list_new(void);
+void snd_seq_instr_list_free(snd_seq_kinstr_list_t **list);
+int snd_seq_instr_list_free_cond(snd_seq_kinstr_list_t *list,
+ snd_seq_instr_header_t *ifree,
+ int client,
+ int atomic);
+snd_seq_kinstr_t *snd_seq_instr_find(snd_seq_kinstr_list_t *list,
+ snd_seq_instr_t *instr,
+ int exact,
+ int follow_alias);
+void snd_seq_instr_free_use(snd_seq_kinstr_list_t *list,
+ snd_seq_kinstr_t *instr);
+int snd_seq_instr_event(snd_seq_kinstr_ops_t *ops,
+ snd_seq_kinstr_list_t *list,
+ snd_seq_event_t *ev,
+ int client,
+ int atomic,
+ int hop);
+
+#endif /* __SOUND_SEQ_INSTR_H */