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-rw-r--r--sound/core/seq/seq_clientmgr.h104
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diff --git a/sound/core/seq/seq_clientmgr.h b/sound/core/seq/seq_clientmgr.h
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+/*
+ * ALSA sequencer Client Manager
+ * Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
+ *
+ *
+ * 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
+ *
+ */
+#ifndef __SND_SEQ_CLIENTMGR_H
+#define __SND_SEQ_CLIENTMGR_H
+
+#include <sound/seq_kernel.h>
+#include <linux/bitops.h>
+#include "seq_fifo.h"
+#include "seq_ports.h"
+#include "seq_lock.h"
+
+
+/* client manager */
+
+struct _snd_seq_user_client {
+ struct file *file; /* file struct of client */
+ /* ... */
+
+ /* fifo */
+ fifo_t *fifo; /* queue for incoming events */
+ int fifo_pool_size;
+};
+
+struct _snd_seq_kernel_client {
+ snd_card_t *card;
+ /* pointer to client functions */
+ void *private_data; /* private data for client */
+ /* ... */
+};
+
+
+struct _snd_seq_client {
+ snd_seq_client_type_t type;
+ unsigned int accept_input: 1,
+ accept_output: 1;
+ char name[64]; /* client name */
+ int number; /* client number */
+ unsigned int filter; /* filter flags */
+ DECLARE_BITMAP(event_filter, 256);
+ snd_use_lock_t use_lock;
+ int event_lost;
+ /* ports */
+ int num_ports; /* number of ports */
+ struct list_head ports_list_head;
+ rwlock_t ports_lock;
+ struct semaphore ports_mutex;
+ int convert32; /* convert 32->64bit */
+
+ /* output pool */
+ pool_t *pool; /* memory pool for this client */
+
+ union {
+ user_client_t user;
+ kernel_client_t kernel;
+ } data;
+};
+
+/* usage statistics */
+typedef struct {
+ int cur;
+ int peak;
+} usage_t;
+
+
+extern int client_init_data(void);
+extern int snd_sequencer_device_init(void);
+extern void snd_sequencer_device_done(void);
+
+/* get locked pointer to client */
+extern client_t *snd_seq_client_use_ptr(int clientid);
+
+/* unlock pointer to client */
+#define snd_seq_client_unlock(client) snd_use_lock_free(&(client)->use_lock)
+
+/* dispatch event to client(s) */
+extern int snd_seq_dispatch_event(snd_seq_event_cell_t *cell, int atomic, int hop);
+
+/* exported to other modules */
+extern int snd_seq_register_kernel_client(snd_seq_client_callback_t *callback, void *private_data);
+extern int snd_seq_unregister_kernel_client(int client);
+extern int snd_seq_kernel_client_enqueue(int client, snd_seq_event_t *ev, int atomic, int hop);
+int snd_seq_kernel_client_enqueue_blocking(int client, snd_seq_event_t * ev, struct file *file, int atomic, int hop);
+int snd_seq_kernel_client_write_poll(int clientid, struct file *file, poll_table *wait);
+int snd_seq_client_notify_subscription(int client, int port, snd_seq_port_subscribe_t *info, int evtype);
+
+#endif