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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /sound/core/seq/seq_clientmgr.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/core/seq/seq_clientmgr.h')
-rw-r--r--sound/core/seq/seq_clientmgr.h91
1 files changed, 91 insertions, 0 deletions
diff --git a/sound/core/seq/seq_clientmgr.h b/sound/core/seq/seq_clientmgr.h
new file mode 100644
index 000000000..8cdd0ee53
--- /dev/null
+++ b/sound/core/seq/seq_clientmgr.h
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * ALSA sequencer Client Manager
+ * Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
+ */
+#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 */
+ /* ... */
+ struct pid *owner;
+
+ /* fifo */
+ struct snd_seq_fifo *fifo; /* queue for incoming events */
+ int fifo_pool_size;
+};
+
+struct snd_seq_kernel_client {
+ /* ... */
+ struct snd_card *card;
+};
+
+
+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 mutex ports_mutex;
+ struct mutex ioctl_mutex;
+ int convert32; /* convert 32->64bit */
+
+ /* output pool */
+ struct snd_seq_pool *pool; /* memory pool for this client */
+
+ union {
+ struct snd_seq_user_client user;
+ struct snd_seq_kernel_client kernel;
+ } data;
+};
+
+/* usage statistics */
+struct snd_seq_usage {
+ int cur;
+ int peak;
+};
+
+
+int client_init_data(void);
+int snd_sequencer_device_init(void);
+void snd_sequencer_device_done(void);
+
+/* get locked pointer to client */
+struct snd_seq_client *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) */
+int snd_seq_dispatch_event(struct snd_seq_event_cell *cell, 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,
+ struct snd_seq_port_subscribe *info, int evtype);
+
+/* only for OSS sequencer */
+bool snd_seq_client_ioctl_lock(int clientid);
+void snd_seq_client_ioctl_unlock(int clientid);
+
+extern int seq_client_load[15];
+
+#endif