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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /sound/core/seq/seq.c
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/core/seq/seq.c')
-rw-r--r--sound/core/seq/seq.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/sound/core/seq/seq.c b/sound/core/seq/seq.c
new file mode 100644
index 000000000..7de98d71f
--- /dev/null
+++ b/sound/core/seq/seq.c
@@ -0,0 +1,135 @@
+/*
+ * ALSA sequencer main module
+ * 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
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+
+#include <sound/seq_kernel.h>
+#include "seq_clientmgr.h"
+#include "seq_memory.h"
+#include "seq_queue.h"
+#include "seq_lock.h"
+#include "seq_timer.h"
+#include "seq_system.h"
+#include "seq_info.h"
+#include <sound/minors.h>
+#include <sound/seq_device.h>
+
+#if defined(CONFIG_SND_SEQ_DUMMY_MODULE)
+int seq_client_load[15] = {[0] = SNDRV_SEQ_CLIENT_DUMMY, [1 ... 14] = -1};
+#else
+int seq_client_load[15] = {[0 ... 14] = -1};
+#endif
+int seq_default_timer_class = SNDRV_TIMER_CLASS_GLOBAL;
+int seq_default_timer_sclass = SNDRV_TIMER_SCLASS_NONE;
+int seq_default_timer_card = -1;
+int seq_default_timer_device =
+#ifdef CONFIG_SND_SEQ_HRTIMER_DEFAULT
+ SNDRV_TIMER_GLOBAL_HRTIMER
+#else
+ SNDRV_TIMER_GLOBAL_SYSTEM
+#endif
+ ;
+int seq_default_timer_subdevice = 0;
+int seq_default_timer_resolution = 0; /* Hz */
+
+MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@perex.cz>");
+MODULE_DESCRIPTION("Advanced Linux Sound Architecture sequencer.");
+MODULE_LICENSE("GPL");
+
+module_param_array(seq_client_load, int, NULL, 0444);
+MODULE_PARM_DESC(seq_client_load, "The numbers of global (system) clients to load through kmod.");
+module_param(seq_default_timer_class, int, 0644);
+MODULE_PARM_DESC(seq_default_timer_class, "The default timer class.");
+module_param(seq_default_timer_sclass, int, 0644);
+MODULE_PARM_DESC(seq_default_timer_sclass, "The default timer slave class.");
+module_param(seq_default_timer_card, int, 0644);
+MODULE_PARM_DESC(seq_default_timer_card, "The default timer card number.");
+module_param(seq_default_timer_device, int, 0644);
+MODULE_PARM_DESC(seq_default_timer_device, "The default timer device number.");
+module_param(seq_default_timer_subdevice, int, 0644);
+MODULE_PARM_DESC(seq_default_timer_subdevice, "The default timer subdevice number.");
+module_param(seq_default_timer_resolution, int, 0644);
+MODULE_PARM_DESC(seq_default_timer_resolution, "The default timer resolution in Hz.");
+
+MODULE_ALIAS_CHARDEV(CONFIG_SND_MAJOR, SNDRV_MINOR_SEQUENCER);
+MODULE_ALIAS("devname:snd/seq");
+
+/*
+ * INIT PART
+ */
+
+static int __init alsa_seq_init(void)
+{
+ int err;
+
+ err = client_init_data();
+ if (err < 0)
+ goto error;
+
+ /* register sequencer device */
+ err = snd_sequencer_device_init();
+ if (err < 0)
+ goto error;
+
+ /* register proc interface */
+ err = snd_seq_info_init();
+ if (err < 0)
+ goto error_device;
+
+ /* register our internal client */
+ err = snd_seq_system_client_init();
+ if (err < 0)
+ goto error_info;
+
+ snd_seq_autoload_init();
+ return 0;
+
+ error_info:
+ snd_seq_info_done();
+ error_device:
+ snd_sequencer_device_done();
+ error:
+ return err;
+}
+
+static void __exit alsa_seq_exit(void)
+{
+ /* unregister our internal client */
+ snd_seq_system_client_done();
+
+ /* unregister proc interface */
+ snd_seq_info_done();
+
+ /* delete timing queues */
+ snd_seq_queues_delete();
+
+ /* unregister sequencer device */
+ snd_sequencer_device_done();
+
+ snd_seq_autoload_exit();
+}
+
+module_init(alsa_seq_init)
+module_exit(alsa_seq_exit)