Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

18 files changed, 4394 insertions, 0 deletions

diff --git a/sound/core/seq/oss/Makefile b/sound/core/seq/oss/Makefile
new file mode 100644
index 00000000000..a37ddedf710
--- /dev/null
+++ b/sound/core/seq/oss/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for ALSA
+# Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
+#
+
+snd-seq-oss-objs  := seq_oss.o seq_oss_init.o seq_oss_timer.o seq_oss_ioctl.o \
+		     seq_oss_event.o seq_oss_rw.o seq_oss_synth.o \
+		     seq_oss_midi.o seq_oss_readq.o seq_oss_writeq.o
+
+obj-$(CONFIG_SND_SEQUENCER) += snd-seq-oss.o
diff --git a/sound/core/seq/oss/seq_oss.c b/sound/core/seq/oss/seq_oss.c
new file mode 100644
index 00000000000..4c0558c0a8b
--- /dev/null
+++ b/sound/core/seq/oss/seq_oss.c
@@ -0,0 +1,317 @@
+/*
+ * OSS compatible sequencer driver
+ *
+ * registration of device and proc
+ *
+ * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
+ *
+ * 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 <sound/driver.h>
+#include <linux/init.h>
+#include <linux/smp_lock.h>
+#include <linux/moduleparam.h>
+#include <sound/core.h>
+#include <sound/minors.h>
+#include <sound/initval.h>
+#include "seq_oss_device.h"
+#include "seq_oss_synth.h"
+
+/*
+ * module option
+ */
+MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
+MODULE_DESCRIPTION("OSS-compatible sequencer module");
+MODULE_LICENSE("GPL");
+/* Takashi says this is really only for sound-service-0-, but this is OK. */
+MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_SEQUENCER);
+MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MUSIC);
+
+#ifdef SNDRV_SEQ_OSS_DEBUG
+module_param(seq_oss_debug, int, 0644);
+MODULE_PARM_DESC(seq_oss_debug, "debug option");
+int seq_oss_debug = 0;
+#endif
+
+
+/*
+ * prototypes
+ */
+static int register_device(void);
+static void unregister_device(void);
+static int register_proc(void);
+static void unregister_proc(void);
+
+static int odev_open(struct inode *inode, struct file *file);
+static int odev_release(struct inode *inode, struct file *file);
+static ssize_t odev_read(struct file *file, char __user *buf, size_t count, loff_t *offset);
+static ssize_t odev_write(struct file *file, const char __user *buf, size_t count, loff_t *offset);
+static long odev_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+static unsigned int odev_poll(struct file *file, poll_table * wait);
+#ifdef CONFIG_PROC_FS
+static void info_read(snd_info_entry_t *entry, snd_info_buffer_t *buf);
+#endif
+
+
+/*
+ * module interface
+ */
+
+static int __init alsa_seq_oss_init(void)
+{
+	int rc;
+	static snd_seq_dev_ops_t ops = {
+		snd_seq_oss_synth_register,
+		snd_seq_oss_synth_unregister,
+	};
+
+	snd_seq_autoload_lock();
+	if ((rc = register_device()) < 0)
+		goto error;
+	if ((rc = register_proc()) < 0) {
+		unregister_device();
+		goto error;
+	}
+	if ((rc = snd_seq_oss_create_client()) < 0) {
+		unregister_proc();
+		unregister_device();
+		goto error;
+	}
+
+	if ((rc = snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OSS, &ops,
+						 sizeof(snd_seq_oss_reg_t))) < 0) {
+		snd_seq_oss_delete_client();
+		unregister_proc();
+		unregister_device();
+		goto error;
+	}
+
+	/* success */
+	snd_seq_oss_synth_init();
+
+ error:
+	snd_seq_autoload_unlock();
+	return rc;
+}
+
+static void __exit alsa_seq_oss_exit(void)
+{
+	snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_OSS);
+	snd_seq_oss_delete_client();
+	unregister_proc();
+	unregister_device();
+}
+
+module_init(alsa_seq_oss_init)
+module_exit(alsa_seq_oss_exit)
+
+/*
+ * ALSA minor device interface
+ */
+
+static DECLARE_MUTEX(register_mutex);
+
+static int
+odev_open(struct inode *inode, struct file *file)
+{
+	int level, rc;
+
+	if (iminor(inode) == SNDRV_MINOR_OSS_MUSIC)
+		level = SNDRV_SEQ_OSS_MODE_MUSIC;
+	else
+		level = SNDRV_SEQ_OSS_MODE_SYNTH;
+
+	down(&register_mutex);
+	rc = snd_seq_oss_open(file, level);
+	up(&register_mutex);
+
+	return rc;
+}
+
+static int
+odev_release(struct inode *inode, struct file *file)
+{
+	seq_oss_devinfo_t *dp;
+
+	if ((dp = file->private_data) == NULL)
+		return 0;
+
+	snd_seq_oss_drain_write(dp);
+
+	down(&register_mutex);
+	snd_seq_oss_release(dp);
+	up(&register_mutex);
+
+	return 0;
+}
+
+static ssize_t
+odev_read(struct file *file, char __user *buf, size_t count, loff_t *offset)
+{
+	seq_oss_devinfo_t *dp;
+	dp = file->private_data;
+	snd_assert(dp != NULL, return -EIO);
+	return snd_seq_oss_read(dp, buf, count);
+}
+
+
+static ssize_t
+odev_write(struct file *file, const char __user *buf, size_t count, loff_t *offset)
+{
+	seq_oss_devinfo_t *dp;
+	dp = file->private_data;
+	snd_assert(dp != NULL, return -EIO);
+	return snd_seq_oss_write(dp, buf, count, file);
+}
+
+static long
+odev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	seq_oss_devinfo_t *dp;
+	dp = file->private_data;
+	snd_assert(dp != NULL, return -EIO);
+	return snd_seq_oss_ioctl(dp, cmd, arg);
+}
+
+#ifdef CONFIG_COMPAT
+#define odev_ioctl_compat	odev_ioctl
+#else
+#define odev_ioctl_compat	NULL
+#endif
+
+static unsigned int
+odev_poll(struct file *file, poll_table * wait)
+{
+	seq_oss_devinfo_t *dp;
+	dp = file->private_data;
+	snd_assert(dp != NULL, return 0);
+	return snd_seq_oss_poll(dp, file, wait);
+}
+
+/*
+ * registration of sequencer minor device
+ */
+
+static struct file_operations seq_oss_f_ops =
+{
+	.owner =	THIS_MODULE,
+	.read =		odev_read,
+	.write =	odev_write,
+	.open =		odev_open,
+	.release =	odev_release,
+	.poll =		odev_poll,
+	.unlocked_ioctl =	odev_ioctl,
+	.compat_ioctl =	odev_ioctl_compat,
+};
+
+static snd_minor_t seq_oss_reg = {
+	.comment =	"sequencer",
+	.f_ops =	&seq_oss_f_ops,
+};
+
+static int __init
+register_device(void)
+{
+	int rc;
+
+	down(&register_mutex);
+	if ((rc = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_SEQUENCER,
+					  NULL, 0,
+					  &seq_oss_reg,
+					  SNDRV_SEQ_OSS_DEVNAME)) < 0) {
+		snd_printk(KERN_ERR "can't register device seq\n");
+		up(&register_mutex);
+		return rc;
+	}
+	if ((rc = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MUSIC,
+					  NULL, 0,
+					  &seq_oss_reg,
+					  SNDRV_SEQ_OSS_DEVNAME)) < 0) {
+		snd_printk(KERN_ERR "can't register device music\n");
+		snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_SEQUENCER, NULL, 0);
+		up(&register_mutex);
+		return rc;
+	}
+	debug_printk(("device registered\n"));
+	up(&register_mutex);
+	return 0;
+}
+
+static void
+unregister_device(void)
+{
+	down(&register_mutex);
+	debug_printk(("device unregistered\n"));
+	if (snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MUSIC, NULL, 0) < 0)		
+		snd_printk(KERN_ERR "error unregister device music\n");
+	if (snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_SEQUENCER, NULL, 0) < 0)
+		snd_printk(KERN_ERR "error unregister device seq\n");
+	up(&register_mutex);
+}
+
+/*
+ * /proc interface
+ */
+
+#ifdef CONFIG_PROC_FS
+
+static snd_info_entry_t *info_entry;
+
+static void
+info_read(snd_info_entry_t *entry, snd_info_buffer_t *buf)
+{
+	down(&register_mutex);
+	snd_iprintf(buf, "OSS sequencer emulation version %s\n", SNDRV_SEQ_OSS_VERSION_STR);
+	snd_seq_oss_system_info_read(buf);
+	snd_seq_oss_synth_info_read(buf);
+	snd_seq_oss_midi_info_read(buf);
+	up(&register_mutex);
+}
+
+#endif /* CONFIG_PROC_FS */
+
+static int __init
+register_proc(void)
+{
+#ifdef CONFIG_PROC_FS
+	snd_info_entry_t *entry;
+
+	entry = snd_info_create_module_entry(THIS_MODULE, SNDRV_SEQ_OSS_PROCNAME, snd_seq_root);
+	if (entry == NULL)
+		return -ENOMEM;
+
+	entry->content = SNDRV_INFO_CONTENT_TEXT;
+	entry->private_data = NULL;
+	entry->c.text.read_size = 1024;
+	entry->c.text.read = info_read;
+	if (snd_info_register(entry) < 0) {
+		snd_info_free_entry(entry);
+		return -ENOMEM;
+	}
+	info_entry = entry;
+#endif
+	return 0;
+}
+
+static void
+unregister_proc(void)
+{
+#ifdef CONFIG_PROC_FS
+	if (info_entry)
+		snd_info_unregister(info_entry);
+	info_entry = NULL;
+#endif
+}
diff --git a/sound/core/seq/oss/seq_oss_device.h b/sound/core/seq/oss/seq_oss_device.h
new file mode 100644
index 00000000000..da23c4db8dd
--- /dev/null
+++ b/sound/core/seq/oss/seq_oss_device.h
@@ -0,0 +1,198 @@
+/*
+ * OSS compatible sequencer driver
+ *
+ * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
+ *
+ * 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 __SEQ_OSS_DEVICE_H
+#define __SEQ_OSS_DEVICE_H
+
+#include <sound/driver.h>
+#include <linux/time.h>
+#include <linux/wait.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <sound/core.h>
+#include <sound/seq_oss.h>
+#include <sound/rawmidi.h>
+#include <sound/seq_kernel.h>
+#include <sound/info.h>
+
+/* enable debug print */
+#define SNDRV_SEQ_OSS_DEBUG
+
+/* max. applications */
+#define SNDRV_SEQ_OSS_MAX_CLIENTS	16
+#define SNDRV_SEQ_OSS_MAX_SYNTH_DEVS	16
+#define SNDRV_SEQ_OSS_MAX_MIDI_DEVS	32
+
+/* version */
+#define SNDRV_SEQ_OSS_MAJOR_VERSION	0
+#define SNDRV_SEQ_OSS_MINOR_VERSION	1
+#define SNDRV_SEQ_OSS_TINY_VERSION	8
+#define SNDRV_SEQ_OSS_VERSION_STR	"0.1.8"
+
+/* device and proc interface name */
+#define SNDRV_SEQ_OSS_DEVNAME		"seq_oss"
+#define SNDRV_SEQ_OSS_PROCNAME		"oss"
+
+
+/*
+ * type definitions
+ */
+
+typedef struct seq_oss_devinfo_t seq_oss_devinfo_t;
+typedef struct seq_oss_writeq_t seq_oss_writeq_t;
+typedef struct seq_oss_readq_t seq_oss_readq_t;
+typedef struct seq_oss_timer_t seq_oss_timer_t;
+typedef struct seq_oss_synthinfo_t seq_oss_synthinfo_t;
+typedef struct seq_oss_synth_sysex_t seq_oss_synth_sysex_t;
+typedef struct seq_oss_chinfo_t seq_oss_chinfo_t;
+typedef unsigned int reltime_t;
+typedef unsigned int abstime_t;
+typedef union evrec_t evrec_t;
+
+
+/*
+ * synthesizer channel information
+ */
+struct seq_oss_chinfo_t {
+	int note, vel;
+};
+
+/*
+ * synthesizer information
+ */
+struct seq_oss_synthinfo_t {
+	snd_seq_oss_arg_t arg;
+	seq_oss_chinfo_t *ch;
+	seq_oss_synth_sysex_t *sysex;
+	int nr_voices;
+	int opened;
+	int is_midi;
+	int midi_mapped;
+};
+
+
+/*
+ * sequencer client information
+ */
+
+struct seq_oss_devinfo_t {
+
+	int index;	/* application index */
+	int cseq;	/* sequencer client number */
+	int port;	/* sequencer port number */
+	int queue;	/* sequencer queue number */
+
+	snd_seq_addr_t addr;	/* address of this device */
+
+	int seq_mode;	/* sequencer mode */
+	int file_mode;	/* file access */
+
+	/* midi device table */
+	int max_mididev;
+
+	/* synth device table */
+	int max_synthdev;
+	seq_oss_synthinfo_t synths[SNDRV_SEQ_OSS_MAX_SYNTH_DEVS];
+	int synth_opened;
+
+	/* output queue */
+	seq_oss_writeq_t *writeq;
+
+	/* midi input queue */
+	seq_oss_readq_t *readq;
+
+	/* timer */
+	seq_oss_timer_t *timer;
+};
+
+
+/*
+ * function prototypes
+ */
+
+/* create/delete OSS sequencer client */
+int snd_seq_oss_create_client(void);
+int snd_seq_oss_delete_client(void);
+
+/* device file interface */
+int snd_seq_oss_open(struct file *file, int level);
+void snd_seq_oss_release(seq_oss_devinfo_t *dp);
+int snd_seq_oss_ioctl(seq_oss_devinfo_t *dp, unsigned int cmd, unsigned long arg);
+int snd_seq_oss_read(seq_oss_devinfo_t *dev, char __user *buf, int count);
+int snd_seq_oss_write(seq_oss_devinfo_t *dp, const char __user *buf, int count, struct file *opt);
+unsigned int snd_seq_oss_poll(seq_oss_devinfo_t *dp, struct file *file, poll_table * wait);
+
+void snd_seq_oss_reset(seq_oss_devinfo_t *dp);
+void snd_seq_oss_drain_write(seq_oss_devinfo_t *dp);
+
+/* */
+void snd_seq_oss_process_queue(seq_oss_devinfo_t *dp, abstime_t time);
+
+
+/* proc interface */
+void snd_seq_oss_system_info_read(snd_info_buffer_t *buf);
+void snd_seq_oss_midi_info_read(snd_info_buffer_t *buf);
+void snd_seq_oss_synth_info_read(snd_info_buffer_t *buf);
+void snd_seq_oss_readq_info_read(seq_oss_readq_t *q, snd_info_buffer_t *buf);
+
+/* file mode macros */
+#define is_read_mode(mode)	((mode) & SNDRV_SEQ_OSS_FILE_READ)
+#define is_write_mode(mode)	((mode) & SNDRV_SEQ_OSS_FILE_WRITE)
+#define is_nonblock_mode(mode)	((mode) & SNDRV_SEQ_OSS_FILE_NONBLOCK)
+
+/* dispatch event */
+inline static int
+snd_seq_oss_dispatch(seq_oss_devinfo_t *dp, snd_seq_event_t *ev, int atomic, int hop)
+{
+	return snd_seq_kernel_client_dispatch(dp->cseq, ev, atomic, hop);
+}
+
+/* ioctl */
+inline static int
+snd_seq_oss_control(seq_oss_devinfo_t *dp, unsigned int type, void *arg)
+{
+	return snd_seq_kernel_client_ctl(dp->cseq, type, arg);
+}
+
+/* fill the addresses in header */
+inline static void
+snd_seq_oss_fill_addr(seq_oss_devinfo_t *dp, snd_seq_event_t *ev,
+		     int dest_client, int dest_port)
+{
+	ev->queue = dp->queue;
+	ev->source = dp->addr;
+	ev->dest.client = dest_client;
+	ev->dest.port = dest_port;
+}
+
+
+/* misc. functions for proc interface */
+char *enabled_str(int bool);
+
+
+/* for debug */
+#ifdef SNDRV_SEQ_OSS_DEBUG
+extern int seq_oss_debug;
+#define debug_printk(x)	do { if (seq_oss_debug > 0) snd_printk x; } while (0)
+#else
+#define debug_printk(x)	/**/
+#endif
+
+#endif /* __SEQ_OSS_DEVICE_H */
diff --git a/sound/core/seq/oss/seq_oss_event.c b/sound/core/seq/oss/seq_oss_event.c
new file mode 100644
index 00000000000..58e52ddd292
--- /dev/null
+++ b/sound/core/seq/oss/seq_oss_event.c
@@ -0,0 +1,447 @@
+/*
+ * OSS compatible sequencer driver
+ *
+ * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
+ *
+ * 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_oss_device.h"
+#include "seq_oss_synth.h"
+#include "seq_oss_midi.h"
+#include "seq_oss_event.h"
+#include "seq_oss_timer.h"
+#include <sound/seq_oss_legacy.h>
+#include "seq_oss_readq.h"
+#include "seq_oss_writeq.h"
+
+
+/*
+ * prototypes
+ */
+static int extended_event(seq_oss_devinfo_t *dp, evrec_t *q, snd_seq_event_t *ev);
+static int chn_voice_event(seq_oss_devinfo_t *dp, evrec_t *event_rec, snd_seq_event_t *ev);
+static int chn_common_event(seq_oss_devinfo_t *dp, evrec_t *event_rec, snd_seq_event_t *ev);
+static int timing_event(seq_oss_devinfo_t *dp, evrec_t *event_rec, snd_seq_event_t *ev);
+static int local_event(seq_oss_devinfo_t *dp, evrec_t *event_rec, snd_seq_event_t *ev);
+static int old_event(seq_oss_devinfo_t *dp, evrec_t *q, snd_seq_event_t *ev);
+static int note_on_event(seq_oss_devinfo_t *dp, int dev, int ch, int note, int vel, snd_seq_event_t *ev);
+static int note_off_event(seq_oss_devinfo_t *dp, int dev, int ch, int note, int vel, snd_seq_event_t *ev);
+static int set_note_event(seq_oss_devinfo_t *dp, int dev, int type, int ch, int note, int vel, snd_seq_event_t *ev);
+static int set_control_event(seq_oss_devinfo_t *dp, int dev, int type, int ch, int param, int val, snd_seq_event_t *ev);
+static int set_echo_event(seq_oss_devinfo_t *dp, evrec_t *rec, snd_seq_event_t *ev);
+
+
+/*
+ * convert an OSS event to ALSA event
+ * return 0 : enqueued
+ *        non-zero : invalid - ignored
+ */
+
+int
+snd_seq_oss_process_event(seq_oss_devinfo_t *dp, evrec_t *q, snd_seq_event_t *ev)
+{
+	switch (q->s.code) {
+	case SEQ_EXTENDED:
+		return extended_event(dp, q, ev);
+
+	case EV_CHN_VOICE:
+		return chn_voice_event(dp, q, ev);
+
+	case EV_CHN_COMMON:
+		return chn_common_event(dp, q, ev);
+
+	case EV_TIMING:
+		return timing_event(dp, q, ev);
+
+	case EV_SEQ_LOCAL:
+		return local_event(dp, q, ev);
+
+	case EV_SYSEX:
+		return snd_seq_oss_synth_sysex(dp, q->x.dev, q->x.buf, ev);
+
+	case SEQ_MIDIPUTC:
+		if (dp->seq_mode == SNDRV_SEQ_OSS_MODE_MUSIC)
+			return -EINVAL;
+		/* put a midi byte */
+		if (! is_write_mode(dp->file_mode))
+			break;
+		if (snd_seq_oss_midi_open(dp, q->s.dev, SNDRV_SEQ_OSS_FILE_WRITE))
+			break;
+		if (snd_seq_oss_midi_filemode(dp, q->s.dev) & SNDRV_SEQ_OSS_FILE_WRITE)
+			return snd_seq_oss_midi_putc(dp, q->s.dev, q->s.parm1, ev);
+		break;
+
+	case SEQ_ECHO:
+		if (dp->seq_mode == SNDRV_SEQ_OSS_MODE_MUSIC)
+			return -EINVAL;
+		return set_echo_event(dp, q, ev);
+
+	case SEQ_PRIVATE:
+		if (dp->seq_mode == SNDRV_SEQ_OSS_MODE_MUSIC)
+			return -EINVAL;
+		return snd_seq_oss_synth_raw_event(dp, q->c[1], q->c, ev);
+
+	default:
+		if (dp->seq_mode == SNDRV_SEQ_OSS_MODE_MUSIC)
+			return -EINVAL;
+		return old_event(dp, q, ev);
+	}
+	return -EINVAL;
+}
+
+/* old type events: mode1 only */
+static int
+old_event(seq_oss_devinfo_t *dp, evrec_t *q, snd_seq_event_t *ev)
+{
+	switch (q->s.code) {
+	case SEQ_NOTEOFF:
+		return note_off_event(dp, 0, q->n.chn, q->n.note, q->n.vel, ev);
+
+	case SEQ_NOTEON:
+		return note_on_event(dp, 0, q->n.chn, q->n.note, q->n.vel, ev);
+
+	case SEQ_WAIT:
+		/* skip */
+		break;
+
+	case SEQ_PGMCHANGE:
+		return set_control_event(dp, 0, SNDRV_SEQ_EVENT_PGMCHANGE,
+					 q->n.chn, 0, q->n.note, ev);
+
+	case SEQ_SYNCTIMER:
+		return snd_seq_oss_timer_reset(dp->timer);
+	}
+
+	return -EINVAL;
+}
+
+/* 8bytes extended event: mode1 only */
+static int
+extended_event(seq_oss_devinfo_t *dp, evrec_t *q, snd_seq_event_t *ev)
+{
+	int val;
+
+	switch (q->e.cmd) {
+	case SEQ_NOTEOFF:
+		return note_off_event(dp, q->e.dev, q->e.chn, q->e.p1, q->e.p2, ev);
+
+	case SEQ_NOTEON:
+		return note_on_event(dp, q->e.dev, q->e.chn, q->e.p1, q->e.p2, ev);
+
+	case SEQ_PGMCHANGE:
+		return set_control_event(dp, q->e.dev, SNDRV_SEQ_EVENT_PGMCHANGE,
+					 q->e.chn, 0, q->e.p1, ev);
+
+	case SEQ_AFTERTOUCH:
+		return set_control_event(dp, q->e.dev, SNDRV_SEQ_EVENT_CHANPRESS,
+					 q->e.chn, 0, q->e.p1, ev);
+
+	case SEQ_BALANCE:
+		/* convert -128:127 to 0:127 */
+		val = (char)q->e.p1;
+		val = (val + 128) / 2;
+		return set_control_event(dp, q->e.dev, SNDRV_SEQ_EVENT_CONTROLLER,
+					 q->e.chn, CTL_PAN, val, ev);
+
+	case SEQ_CONTROLLER:
+		val = ((short)q->e.p3 << 8) | (short)q->e.p2;
+		switch (q->e.p1) {
+		case CTRL_PITCH_BENDER: /* SEQ1 V2 control */
+			/* -0x2000:0x1fff */
+			return set_control_event(dp, q->e.dev,
+						 SNDRV_SEQ_EVENT_PITCHBEND,
+						 q->e.chn, 0, val, ev);
+		case CTRL_PITCH_BENDER_RANGE:
+			/* conversion: 100/semitone -> 128/semitone */
+			return set_control_event(dp, q->e.dev,
+						 SNDRV_SEQ_EVENT_REGPARAM,
+						 q->e.chn, 0, val*128/100, ev);
+		default:
+			return set_control_event(dp, q->e.dev,
+						  SNDRV_SEQ_EVENT_CONTROL14,
+						  q->e.chn, q->e.p1, val, ev);
+		}
+
+	case SEQ_VOLMODE:
+		return snd_seq_oss_synth_raw_event(dp, q->e.dev, q->c, ev);
+
+	}
+	return -EINVAL;
+}
+
+/* channel voice events: mode1 and 2 */
+static int
+chn_voice_event(seq_oss_devinfo_t *dp, evrec_t *q, snd_seq_event_t *ev)
+{
+	if (q->v.chn >= 32)
+		return -EINVAL;
+	switch (q->v.cmd) {
+	case MIDI_NOTEON:
+		return note_on_event(dp, q->v.dev, q->v.chn, q->v.note, q->v.parm, ev);
+
+	case MIDI_NOTEOFF:
+		return note_off_event(dp, q->v.dev, q->v.chn, q->v.note, q->v.parm, ev);
+
+	case MIDI_KEY_PRESSURE:
+		return set_note_event(dp, q->v.dev, SNDRV_SEQ_EVENT_KEYPRESS,
+				       q->v.chn, q->v.note, q->v.parm, ev);
+
+	}
+	return -EINVAL;
+}
+
+/* channel common events: mode1 and 2 */
+static int
+chn_common_event(seq_oss_devinfo_t *dp, evrec_t *q, snd_seq_event_t *ev)
+{
+	if (q->l.chn >= 32)
+		return -EINVAL;
+	switch (q->l.cmd) {
+	case MIDI_PGM_CHANGE:
+		return set_control_event(dp, q->l.dev, SNDRV_SEQ_EVENT_PGMCHANGE,
+					  q->l.chn, 0, q->l.p1, ev);
+
+	case MIDI_CTL_CHANGE:
+		return set_control_event(dp, q->l.dev, SNDRV_SEQ_EVENT_CONTROLLER,
+					  q->l.chn, q->l.p1, q->l.val, ev);
+
+	case MIDI_PITCH_BEND:
+		/* conversion: 0:0x3fff -> -0x2000:0x1fff */
+		return set_control_event(dp, q->l.dev, SNDRV_SEQ_EVENT_PITCHBEND,
+					  q->l.chn, 0, q->l.val - 8192, ev);
+		
+	case MIDI_CHN_PRESSURE:
+		return set_control_event(dp, q->l.dev, SNDRV_SEQ_EVENT_CHANPRESS,
+					  q->l.chn, 0, q->l.val, ev);
+	}
+	return -EINVAL;
+}
+
+/* timer events: mode1 and mode2 */
+static int
+timing_event(seq_oss_devinfo_t *dp, evrec_t *q, snd_seq_event_t *ev)
+{
+	switch (q->t.cmd) {
+	case TMR_ECHO:
+		if (dp->seq_mode == SNDRV_SEQ_OSS_MODE_MUSIC)
+			return set_echo_event(dp, q, ev);
+		else {
+			evrec_t tmp;
+			memset(&tmp, 0, sizeof(tmp));
+			/* XXX: only for little-endian! */
+			tmp.echo = (q->t.time << 8) | SEQ_ECHO;
+			return set_echo_event(dp, &tmp, ev);
+		} 
+
+	case TMR_STOP:
+		if (dp->seq_mode)
+			return snd_seq_oss_timer_stop(dp->timer);
+		return 0;
+
+	case TMR_CONTINUE:
+		if (dp->seq_mode)
+			return snd_seq_oss_timer_continue(dp->timer);
+		return 0;
+
+	case TMR_TEMPO:
+		if (dp->seq_mode)
+			return snd_seq_oss_timer_tempo(dp->timer, q->t.time);
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+/* local events: mode1 and 2 */
+static int
+local_event(seq_oss_devinfo_t *dp, evrec_t *q, snd_seq_event_t *ev)
+{
+	return -EINVAL;
+}
+
+/*
+ * process note-on event for OSS synth
+ * three different modes are available:
+ * - SNDRV_SEQ_OSS_PROCESS_EVENTS  (for one-voice per channel mode)
+ *	Accept note 255 as volume change.
+ * - SNDRV_SEQ_OSS_PASS_EVENTS
+ *	Pass all events to lowlevel driver anyway
+ * - SNDRV_SEQ_OSS_PROCESS_KEYPRESS  (mostly for Emu8000)
+ *	Use key-pressure if note >= 128
+ */
+static int
+note_on_event(seq_oss_devinfo_t *dp, int dev, int ch, int note, int vel, snd_seq_event_t *ev)
+{
+	seq_oss_synthinfo_t *info = &dp->synths[dev];
+	switch (info->arg.event_passing) {
+	case SNDRV_SEQ_OSS_PROCESS_EVENTS:
+		if (! info->ch || ch < 0 || ch >= info->nr_voices) {
+			/* pass directly */
+			return set_note_event(dp, dev, SNDRV_SEQ_EVENT_NOTEON, ch, note, vel, ev);
+		}
+
+		if (note == 255 && info->ch[ch].note >= 0) {
+			/* volume control */
+			int type;
+			//if (! vel)
+				/* set volume to zero -- note off */
+			//	type = SNDRV_SEQ_EVENT_NOTEOFF;
+			//else
+				if (info->ch[ch].vel)
+				/* sample already started -- volume change */
+				type = SNDRV_SEQ_EVENT_KEYPRESS;
+			else
+				/* sample not started -- start now */
+				type = SNDRV_SEQ_EVENT_NOTEON;
+			info->ch[ch].vel = vel;
+			return set_note_event(dp, dev, type, ch, info->ch[ch].note, vel, ev);
+		} else if (note >= 128)
+			return -EINVAL; /* invalid */
+
+		if (note != info->ch[ch].note && info->ch[ch].note >= 0)
+			/* note changed - note off at beginning */
+			set_note_event(dp, dev, SNDRV_SEQ_EVENT_NOTEOFF, ch, info->ch[ch].note, 0, ev);
+		/* set current status */
+		info->ch[ch].note = note;
+		info->ch[ch].vel = vel;
+		if (vel) /* non-zero velocity - start the note now */
+			return set_note_event(dp, dev, SNDRV_SEQ_EVENT_NOTEON, ch, note, vel, ev);
+		return -EINVAL;
+		
+	case SNDRV_SEQ_OSS_PASS_EVENTS:
+		/* pass the event anyway */
+		return set_note_event(dp, dev, SNDRV_SEQ_EVENT_NOTEON, ch, note, vel, ev);
+
+	case SNDRV_SEQ_OSS_PROCESS_KEYPRESS:
+		if (note >= 128) /* key pressure: shifted by 128 */
+			return set_note_event(dp, dev, SNDRV_SEQ_EVENT_KEYPRESS, ch, note - 128, vel, ev);
+		else /* normal note-on event */
+			return set_note_event(dp, dev, SNDRV_SEQ_EVENT_NOTEON, ch, note, vel, ev);
+	}
+	return -EINVAL;
+}
+
+/*
+ * process note-off event for OSS synth
+ */
+static int
+note_off_event(seq_oss_devinfo_t *dp, int dev, int ch, int note, int vel, snd_seq_event_t *ev)
+{
+	seq_oss_synthinfo_t *info = &dp->synths[dev];
+	switch (info->arg.event_passing) {
+	case SNDRV_SEQ_OSS_PROCESS_EVENTS:
+		if (! info->ch || ch < 0 || ch >= info->nr_voices) {
+			/* pass directly */
+			return set_note_event(dp, dev, SNDRV_SEQ_EVENT_NOTEON, ch, note, vel, ev);
+		}
+
+		if (info->ch[ch].note >= 0) {
+			note = info->ch[ch].note;
+			info->ch[ch].vel = 0;
+			info->ch[ch].note = -1;
+			return set_note_event(dp, dev, SNDRV_SEQ_EVENT_NOTEOFF, ch, note, vel, ev);
+		}
+		return -EINVAL; /* invalid */
+
+	case SNDRV_SEQ_OSS_PASS_EVENTS:
+	case SNDRV_SEQ_OSS_PROCESS_KEYPRESS:
+		/* pass the event anyway */
+		return set_note_event(dp, dev, SNDRV_SEQ_EVENT_NOTEOFF, ch, note, vel, ev);
+
+	}
+	return -EINVAL;
+}
+
+/*
+ * create a note event
+ */
+static int
+set_note_event(seq_oss_devinfo_t *dp, int dev, int type, int ch, int note, int vel, snd_seq_event_t *ev)
+{
+	if (! snd_seq_oss_synth_is_valid(dp, dev))
+		return -ENXIO;
+	
+	ev->type = type;
+	snd_seq_oss_synth_addr(dp, dev, ev);
+	ev->data.note.channel = ch;
+	ev->data.note.note = note;
+	ev->data.note.velocity = vel;
+
+	return 0;
+}
+
+/*
+ * create a control event
+ */
+static int
+set_control_event(seq_oss_devinfo_t *dp, int dev, int type, int ch, int param, int val, snd_seq_event_t *ev)
+{
+	if (! snd_seq_oss_synth_is_valid(dp, dev))
+		return -ENXIO;
+	
+	ev->type = type;
+	snd_seq_oss_synth_addr(dp, dev, ev);
+	ev->data.control.channel = ch;
+	ev->data.control.param = param;
+	ev->data.control.value = val;
+
+	return 0;
+}
+
+/*
+ * create an echo event
+ */
+static int
+set_echo_event(seq_oss_devinfo_t *dp, evrec_t *rec, snd_seq_event_t *ev)
+{
+	ev->type = SNDRV_SEQ_EVENT_ECHO;
+	/* echo back to itself */
+	snd_seq_oss_fill_addr(dp, ev, dp->addr.client, dp->addr.port);
+	memcpy(&ev->data, rec, LONG_EVENT_SIZE);
+	return 0;
+}
+
+/*
+ * event input callback from ALSA sequencer:
+ * the echo event is processed here.
+ */
+int
+snd_seq_oss_event_input(snd_seq_event_t *ev, int direct, void *private_data,
+			int atomic, int hop)
+{
+	seq_oss_devinfo_t *dp = (seq_oss_devinfo_t *)private_data;
+	evrec_t *rec;
+
+	if (ev->type != SNDRV_SEQ_EVENT_ECHO)
+		return snd_seq_oss_midi_input(ev, direct, private_data);
+
+	if (ev->source.client != dp->cseq)
+		return 0; /* ignored */
+
+	rec = (evrec_t*)&ev->data;
+	if (rec->s.code == SEQ_SYNCTIMER) {
+		/* sync echo back */
+		snd_seq_oss_writeq_wakeup(dp->writeq, rec->t.time);
+		
+	} else {
+		/* echo back event */
+		if (dp->readq == NULL)
+			return 0;
+		snd_seq_oss_readq_put_event(dp->readq, rec);
+	}
+	return 0;
+}
+
diff --git a/sound/core/seq/oss/seq_oss_event.h b/sound/core/seq/oss/seq_oss_event.h
new file mode 100644
index 00000000000..bf1d4d3f53c
--- /dev/null
+++ b/sound/core/seq/oss/seq_oss_event.h
@@ -0,0 +1,112 @@
+/*
+ * OSS compatible sequencer driver
+ *
+ * seq_oss_event.h - OSS event queue record
+ *
+ * Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>
+ *
+ * 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.