sound: Retire OSS

Since no complaints have been raised after disabling the build of OSS
(Open Sound System) by the commit 31cbee6a5611 ("sound: Disable the
build of OSS drivers"), let's finally drop the whole code and
documentation.

Some glue codes are still left intact since sound/oss/dmasound stuff
remains -- which is an independent implementation solely for m68k, and
it's not covered by ALSA yet.

Also, a couple of API header files (linux/sound.h and
linux/soundcard.h) are kept remaining as well, since the OSS API
itself is still supported by ALSA OSS emulation, and applications can
refer to these.

Where we're at it, some help texts in the top-level Kconfig are
adjusted, too (who still needs to specify I/O port in kbuild
nowadays?).

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 0 insertions, 1661 deletions

diff --git a/sound/oss/sequencer.c b/sound/oss/sequencer.c
deleted file mode 100644
index f19da4b47c1d..000000000000
--- a/sound/oss/sequencer.c
+++ /dev/null
@@ -1,1661 +0,0 @@
-/*
- * sound/oss/sequencer.c
- *
- * The sequencer personality manager.
- */
-/*
- * Copyright (C) by Hannu Savolainen 1993-1997
- *
- * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
- * Version 2 (June 1991). See the "COPYING" file distributed with this software
- * for more info.
- */
-/*
- * Thomas Sailer   : ioctl code reworked (vmalloc/vfree removed)
- * Alan Cox	   : reformatted and fixed a pair of null pointer bugs
- */
-#include <linux/kmod.h>
-#include <linux/spinlock.h>
-#include "sound_config.h"
-
-#include "midi_ctrl.h"
-#include "sleep.h"
-
-static int      sequencer_ok;
-static struct sound_timer_operations *tmr;
-static int      tmr_no = -1;	/* Currently selected timer */
-static int      pending_timer = -1;	/* For timer change operation */
-extern unsigned long seq_time;
-
-static int      obsolete_api_used;
-static DEFINE_SPINLOCK(lock);
-
-/*
- * Local counts for number of synth and MIDI devices. These are initialized
- * by the sequencer_open.
- */
-static int      max_mididev;
-static int      max_synthdev;
-
-/*
- * The seq_mode gives the operating mode of the sequencer:
- *      1 = level1 (the default)
- *      2 = level2 (extended capabilities)
- */
-
-#define SEQ_1	1
-#define SEQ_2	2
-static int      seq_mode = SEQ_1;
-
-static DECLARE_WAIT_QUEUE_HEAD(seq_sleeper);
-static DECLARE_WAIT_QUEUE_HEAD(midi_sleeper);
-
-static int      midi_opened[MAX_MIDI_DEV];
-
-static int      midi_written[MAX_MIDI_DEV];
-
-static unsigned long prev_input_time;
-static int      prev_event_time;
-
-#include "tuning.h"
-
-#define EV_SZ	8
-#define IEV_SZ	8
-
-static unsigned char *queue;
-static unsigned char *iqueue;
-
-static volatile int qhead, qtail, qlen;
-static volatile int iqhead, iqtail, iqlen;
-static volatile int seq_playing;
-static volatile int sequencer_busy;
-static int      output_threshold;
-static long     pre_event_timeout;
-static unsigned synth_open_mask;
-
-static int      seq_queue(unsigned char *note, char nonblock);
-static void     seq_startplay(void);
-static int      seq_sync(void);
-static void     seq_reset(void);
-
-#if MAX_SYNTH_DEV > 15
-#error Too many synthesizer devices enabled.
-#endif
-
-int sequencer_read(int dev, struct file *file, char __user *buf, int count)
-{
-	int c = count, p = 0;
-	int ev_len;
-	unsigned long flags;
-
-	dev = dev >> 4;
-
-	ev_len = seq_mode == SEQ_1 ? 4 : 8;
-
-	spin_lock_irqsave(&lock,flags);
-
-	if (!iqlen)
-	{
-		spin_unlock_irqrestore(&lock,flags);
- 		if (file->f_flags & O_NONBLOCK) {
-  			return -EAGAIN;
-  		}
-
-		oss_broken_sleep_on(&midi_sleeper, pre_event_timeout);
-		spin_lock_irqsave(&lock,flags);
-		if (!iqlen)
-		{
-			spin_unlock_irqrestore(&lock,flags);
-			return 0;
-		}
-	}
-	while (iqlen && c >= ev_len)
-	{
-		char *fixit = (char *) &iqueue[iqhead * IEV_SZ];
-		spin_unlock_irqrestore(&lock,flags);
-		if (copy_to_user(&(buf)[p], fixit, ev_len))
-			return count - c;
-		p += ev_len;
-		c -= ev_len;
-
-		spin_lock_irqsave(&lock,flags);
-		iqhead = (iqhead + 1) % SEQ_MAX_QUEUE;
-		iqlen--;
-	}
-	spin_unlock_irqrestore(&lock,flags);
-	return count - c;
-}
-
-static void sequencer_midi_output(int dev)
-{
-	/*
-	 * Currently NOP
-	 */
-}
-
-void seq_copy_to_input(unsigned char *event_rec, int len)
-{
-	unsigned long flags;
-
-	/*
-	 * Verify that the len is valid for the current mode.
-	 */
-
-	if (len != 4 && len != 8)
-		return;
-	if ((seq_mode == SEQ_1) != (len == 4))
-		return;
-
-	if (iqlen >= (SEQ_MAX_QUEUE - 1))
-		return;		/* Overflow */
-
-	spin_lock_irqsave(&lock,flags);
-	memcpy(&iqueue[iqtail * IEV_SZ], event_rec, len);
-	iqlen++;
-	iqtail = (iqtail + 1) % SEQ_MAX_QUEUE;
-	wake_up(&midi_sleeper);
-	spin_unlock_irqrestore(&lock,flags);
-}
-EXPORT_SYMBOL(seq_copy_to_input);
-
-static void sequencer_midi_input(int dev, unsigned char data)
-{
-	unsigned int tstamp;
-	unsigned char event_rec[4];
-
-	if (data == 0xfe)	/* Ignore active sensing */
-		return;
-
-	tstamp = jiffies - seq_time;
-
-	if (tstamp != prev_input_time)
-	{
-		tstamp = (tstamp << 8) | SEQ_WAIT;
-		seq_copy_to_input((unsigned char *) &tstamp, 4);
-		prev_input_time = tstamp;
-	}
-	event_rec[0] = SEQ_MIDIPUTC;
-	event_rec[1] = data;
-	event_rec[2] = dev;
-	event_rec[3] = 0;
-
-	seq_copy_to_input(event_rec, 4);
-}
-
-void seq_input_event(unsigned char *event_rec, int len)
-{
-	unsigned long this_time;
-
-	if (seq_mode == SEQ_2)
-		this_time = tmr->get_time(tmr_no);
-	else
-		this_time = jiffies - seq_time;
-
-	if (this_time != prev_input_time)
-	{
-		unsigned char   tmp_event[8];
-
-		tmp_event[0] = EV_TIMING;
-		tmp_event[1] = TMR_WAIT_ABS;
-		tmp_event[2] = 0;
-		tmp_event[3] = 0;
-		*(unsigned int *) &tmp_event[4] = this_time;
-
-		seq_copy_to_input(tmp_event, 8);
-		prev_input_time = this_time;
-	}
-	seq_copy_to_input(event_rec, len);
-}
-EXPORT_SYMBOL(seq_input_event);
-
-int sequencer_write(int dev, struct file *file, const char __user *buf, int count)
-{
-	unsigned char event_rec[EV_SZ], ev_code;
-	int p = 0, c, ev_size;
-	int mode = translate_mode(file);
-
-	dev = dev >> 4;
-
-	if (mode == OPEN_READ)
-		return -EIO;
-
-	c = count;
-
-	while (c >= 4)
-	{
-		if (copy_from_user((char *) event_rec, &(buf)[p], 4))
-			goto out;
-		ev_code = event_rec[0];
-
-		if (ev_code == SEQ_FULLSIZE)
-		{
-			int err, fmt;
-
-			dev = *(unsigned short *) &event_rec[2];
-			if (dev < 0 || dev >= max_synthdev || synth_devs[dev] == NULL)
-				return -ENXIO;
-
-			if (!(synth_open_mask & (1 << dev)))
-				return -ENXIO;
-
-			fmt = (*(short *) &event_rec[0]) & 0xffff;
-			err = synth_devs[dev]->load_patch(dev, fmt, buf + p, c, 0);
-			if (err < 0)
-				return err;
-
-			return err;
-		}
-		if (ev_code >= 128)
-		{
-			if (seq_mode == SEQ_2 && ev_code == SEQ_EXTENDED)
-			{
-				printk(KERN_WARNING "Sequencer: Invalid level 2 event %x\n", ev_code);
-				return -EINVAL;
-			}
-			ev_size = 8;
-
-			if (c < ev_size)
-			{
-				if (!seq_playing)
-					seq_startplay();
-				return count - c;
-			}
-			if (copy_from_user((char *)&event_rec[4],
-					   &(buf)[p + 4], 4))
-				goto out;
-
-		}
-		else
-		{
-			if (seq_mode == SEQ_2)
-			{
-				printk(KERN_WARNING "Sequencer: 4 byte event in level 2 mode\n");
-				return -EINVAL;
-			}
-			ev_size = 4;
-
-			if (event_rec[0] != SEQ_MIDIPUTC)
-				obsolete_api_used = 1;
-		}
-
-		if (event_rec[0] == SEQ_MIDIPUTC)
-		{
-			if (!midi_opened[event_rec[2]])
-			{
-				int err, mode;
-				int dev = event_rec[2];
-
-				if (dev >= max_mididev || midi_devs[dev]==NULL)
-				{
-					/*printk("Sequencer Error: Nonexistent MIDI device %d\n", dev);*/
-					return -ENXIO;
-				}
-				mode = translate_mode(file);
-
-				if ((err = midi_devs[dev]->open(dev, mode,
-								sequencer_midi_input, sequencer_midi_output)) < 0)
-				{
-					seq_reset();
-					printk(KERN_WARNING "Sequencer Error: Unable to open Midi #%d\n", dev);
-					return err;
-				}
-				midi_opened[dev] = 1;
-			}
-		}
-		if (!seq_queue(event_rec, (file->f_flags & (O_NONBLOCK) ? 1 : 0)))
-		{
-			int processed = count - c;
-
-			if (!seq_playing)
-				seq_startplay();
-
-			if (!processed && (file->f_flags & O_NONBLOCK))
-				return -EAGAIN;
-			else
-				return processed;
-		}
-		p += ev_size;
-		c -= ev_size;
-	}
-
-	if (!seq_playing)
-		seq_startplay();
-out:
-	return count;
-}
-
-static int seq_queue(unsigned char *note, char nonblock)
-{
-
-	/*
-	 * Test if there is space in the queue
-	 */
-
-	if (qlen >= SEQ_MAX_QUEUE)
-		if (!seq_playing)
-			seq_startplay();	/*
-						 * Give chance to drain the queue
-						 */
-
-	if (!nonblock && qlen >= SEQ_MAX_QUEUE && !waitqueue_active(&seq_sleeper)) {
-		/*
-		 * Sleep until there is enough space on the queue
-		 */
-		oss_broken_sleep_on(&seq_sleeper, MAX_SCHEDULE_TIMEOUT);
-	}
-	if (qlen >= SEQ_MAX_QUEUE)
-	{
-		return 0;	/*
-				 * To be sure
-				 */
-	}
-	memcpy(&queue[qtail * EV_SZ], note, EV_SZ);
-
-	qtail = (qtail + 1) % SEQ_MAX_QUEUE;
-	qlen++;
-
-	return 1;
-}
-
-static int extended_event(unsigned char *q)
-{
-	int dev = q[2];
-
-	if (dev < 0 || dev >= max_synthdev)
-		return -ENXIO;
-
-	if (!(synth_open_mask & (1 << dev)))
-		return -ENXIO;
-
-	switch (q[1])
-	{
-		case SEQ_NOTEOFF:
-			synth_devs[dev]->kill_note(dev, q[3], q[4], q[5]);
-			break;
-
-		case SEQ_NOTEON:
-			if (q[4] > 127 && q[4] != 255)
-				return 0;
-
-			if (q[5] == 0)
-			{
-				synth_devs[dev]->kill_note(dev, q[3], q[4], q[5]);
-				break;
-			}
-			synth_devs[dev]->start_note(dev, q[3], q[4], q[5]);
-			break;
-
-		case SEQ_PGMCHANGE:
-			synth_devs[dev]->set_instr(dev, q[3], q[4]);
-			break;
-
-		case SEQ_AFTERTOUCH:
-			synth_devs[dev]->aftertouch(dev, q[3], q[4]);
-			break;
-
-		case SEQ_BALANCE:
-			synth_devs[dev]->panning(dev, q[3], (char) q[4]);
-			break;
-
-		case SEQ_CONTROLLER:
-			synth_devs[dev]->controller(dev, q[3], q[4], (short) (q[5] | (q[6] << 8)));
-			break;
-
-		case SEQ_VOLMODE:
-			if (synth_devs[dev]->volume_method != NULL)
-				synth_devs[dev]->volume_method(dev, q[3]);
-			break;
-
-		default:
-			return -EINVAL;
-	}
-	return 0;
-}
-
-static int find_voice(int dev, int chn, int note)
-{
-	unsigned short key;
-	int i;
-
-	key = (chn << 8) | (note + 1);
-	for (i = 0; i < synth_devs[dev]->alloc.max_voice; i++)
-		if (synth_devs[dev]->alloc.map[i] == key)
-			return i;
-	return -1;
-}
-
-static int alloc_voice(int dev, int chn, int note)
-{
-	unsigned short  key;
-	int voice;
-
-	key = (chn << 8) | (note + 1);
-
-	voice = synth_devs[dev]->alloc_voice(dev, chn, note,
-					     &synth_devs[dev]->alloc);
-	synth_devs[dev]->alloc.map[voice] = key;
-	synth_devs[dev]->alloc.alloc_times[voice] =
-			synth_devs[dev]->alloc.timestamp++;
-	return voice;
-}
-
-static void seq_chn_voice_event(unsigned char *event_rec)
-{
-#define dev event_rec[1]
-#define cmd event_rec[2]
-#define chn event_rec[3]
-#define note event_rec[4]
-#define parm event_rec[5]
-
-	int voice = -1;
-
-	if ((int) dev > max_synthdev || synth_devs[dev] == NULL)
-		return;
-	if (!(synth_open_mask & (1 << dev)))
-		return;
-	if (!synth_devs[dev])
-		return;
-
-	if (seq_mode == SEQ_2)
-	{
-		if (synth_devs[dev]->alloc_voice)
-			voice = find_voice(dev, chn, note);
-
-		if (cmd == MIDI_NOTEON && parm == 0)
-		{
-			cmd = MIDI_NOTEOFF;
-			parm = 64;
-		}
-	}
-
-	switch (cmd)
-	{
-		case MIDI_NOTEON:
-			if (note > 127 && note != 255)	/* Not a seq2 feature */
-				return;
-
-			if (voice == -1 && seq_mode == SEQ_2 && synth_devs[dev]->alloc_voice)
-			{
-				/* Internal synthesizer (FM, GUS, etc) */
-				voice = alloc_voice(dev, chn, note);
-			}
-			if (voice == -1)
-				voice = chn;
-
-			if (seq_mode == SEQ_2 && (int) dev < num_synths)
-			{
-				/*
-				 * The MIDI channel 10 is a percussive channel. Use the note
-				 * number to select the proper patch (128 to 255) to play.
-				 */
-
-				if (chn == 9)
-				{
-					synth_devs[dev]->set_instr(dev, voice, 128 + note);
-					synth_devs[dev]->chn_info[chn].pgm_num = 128 + note;
-				}
-				synth_devs[dev]->setup_voice(dev, voice, chn);
-			}
-			synth_devs[dev]->start_note(dev, voice, note, parm);
-			break;
-
-		case MIDI_NOTEOFF:
-			if (voice == -1)
-				voice = chn;
-			synth_devs[dev]->kill_note(dev, voice, note, parm);
-			break;
-
-		case MIDI_KEY_PRESSURE:
-			if (voice == -1)
-				voice = chn;
-			synth_devs[dev]->aftertouch(dev, voice, parm);
-			break;
-
-		default:;
-	}
-#undef dev
-#undef cmd
-#undef chn
-#undef note
-#undef parm
-}
-
-
-static void seq_chn_common_event(unsigned char *event_rec)
-{
-	unsigned char dev = event_rec[1];
-	unsigned char cmd = event_rec[2];
-	unsigned char chn = event_rec[3];
-	unsigned char p1 = event_rec[4];
-
-	/* unsigned char p2 = event_rec[5]; */
-	unsigned short w14 = *(short *) &event_rec[6];
-
-	if ((int) dev > max_synthdev || synth_devs[dev] == NULL)
-		return;
-	if (!(synth_open_mask & (1 << dev)))
-		return;
-	if (!synth_devs[dev])
-		return;
-
-	switch (cmd)
-	{
-		case MIDI_PGM_CHANGE:
-			if (seq_mode == SEQ_2)
-			{
-				if (chn > 15)
-					break;
-
-				synth_devs[dev]->chn_info[chn].pgm_num = p1;
-				if ((int) dev >= num_synths)
-					synth_devs[dev]->set_instr(dev, chn, p1);
-			}
-			else
-				synth_devs[dev]->set_instr(dev, chn, p1);
-
-			break;
-
-		case MIDI_CTL_CHANGE:
-			if (seq_mode == SEQ_2)
-			{
-				if (chn > 15 || p1 > 127)
-					break;
-
-				synth_devs[dev]->chn_info[chn].controllers[p1] = w14 & 0x7f;
-
-				if (p1 < 32)	/* Setting MSB should clear LSB to 0 */
-					synth_devs[dev]->chn_info[chn].controllers[p1 + 32] = 0;
-
-				if ((int) dev < num_synths)
-				{
-					int val = w14 & 0x7f;
-					int i, key;
-
-					if (p1 < 64)	/* Combine MSB and LSB */
-					{
-						val = ((synth_devs[dev]->
-							chn_info[chn].controllers[p1 & ~32] & 0x7f) << 7)
-							| (synth_devs[dev]->
-							chn_info[chn].controllers[p1 | 32] & 0x7f);
-						p1 &= ~32;
-					}
-					/* Handle all playing notes on this channel */
-
-					key = ((int) chn << 8);
-
-					for (i = 0; i < synth_devs[dev]->alloc.max_voice; i++)
-						if ((synth_devs[dev]->alloc.map[i] & 0xff00) == key)
-							synth_devs[dev]->controller(dev, i, p1, val);
-				}
-				else
-					synth_devs[dev]->controller(dev, chn, p1, w14);
-			}
-			else	/* Mode 1 */
-				synth_devs[dev]->controller(dev, chn, p1, w14);
-			break;
-
-		case MIDI_PITCH_BEND:
-			if (seq_mode == SEQ_2)
-			{
-				if (chn > 15)
-					break;
-
-				synth_devs[dev]->chn_info[chn].bender_value = w14;
-
-				if ((int) dev < num_synths)
-				{
-					/* Handle all playing notes on this channel */
-					int i, key;
-
-					key = (chn << 8);
-
-					for (i = 0; i < synth_devs[dev]->alloc.max_voice; i++)
-						if ((synth_devs[dev]->alloc.map[i] & 0xff00) == key)
-							synth_devs[dev]->bender(dev, i, w14);
-				}
-				else
-					synth_devs[dev]->bender(dev, chn, w14);
-			}
-			else	/* MODE 1 */
-				synth_devs[dev]->bender(dev, chn, w14);
-			break;
-
-		default:;
-	}
-}
-
-static int seq_timing_event(unsigned char *event_rec)
-{
-	unsigned char cmd = event_rec[1];
-	unsigned int parm = *(int *) &event_rec[4];
-
-	if (seq_mode == SEQ_2)
-	{
-		int ret;
-
-		if ((ret = tmr->event(tmr_no, event_rec)) == TIMER_ARMED)
-			if ((SEQ_MAX_QUEUE - qlen) >= output_threshold)
-				wake_up(&seq_sleeper);
-		return ret;
-	}
-	switch (cmd)
-	{
-		case TMR_WAIT_REL:
-			parm += prev_event_time;
-
-			/*
-			 * NOTE!  No break here. Execution of TMR_WAIT_REL continues in the
-			 * next case (TMR_WAIT_ABS)
-			 */
-
-		case TMR_WAIT_ABS:
-			if (parm > 0)
-			{
-				long time;
-
-				time = parm;
-				prev_event_time = time;
-
-				seq_playing = 1;
-				request_sound_timer(time);
-
-				if ((SEQ_MAX_QUEUE - qlen) >= output_threshold)
-					wake_up(&seq_sleeper);
-				return TIMER_ARMED;
-			}
-			break;
-
-		case TMR_START:
-			seq_time = jiffies;
-			prev_input_time = 0;
-			prev_event_time = 0;
-			break;
-
-		case TMR_STOP:
-			break;
-
-		case TMR_CONTINUE:
-			break;
-
-		case TMR_TEMPO:
-			break;
-
-		case TMR_ECHO:
-			parm = (parm << 8 | SEQ_ECHO);
-			seq_copy_to_input((unsigned char *) &parm, 4);
-			break;
-
-		default:;
-	}
-
-	return TIMER_NOT_ARMED;
-}
-
-static void seq_local_event(unsigned char *event_rec)
-{
-	unsigned char   cmd = event_rec[1];
-	unsigned int    parm = *((unsigned int *) &event_rec[4]);
-
-	switch (cmd)
-	{
-		case LOCL_STARTAUDIO:
-			DMAbuf_start_devices(parm);
-			break;
-
-		default:;
-	}
-}
-
-static void seq_sysex_message(unsigned char *event_rec)
-{
-	unsigned int dev = event_rec[1];
-	int i, l = 0;
-	unsigned char  *buf = &event_rec[2];
-
-	if (dev > max_synthdev)
-		return;
-	if (!(synth_open_mask & (1 << dev)))
-		return;
-	if (!synth_devs[dev])
-		return;
-
-	l = 0;
-	for (i = 0; i < 6 && buf[i] != 0xff; i++)
-		l = i + 1;
-
-	if (!synth_devs[dev]->send_sysex)
-		return;
-	if (l > 0)
-		synth_devs[dev]->send_sysex(dev, buf, l);
-}
-
-static int play_event(unsigned char *q)
-{
-	/*
-	 * NOTE! This routine returns
-	 *   0 = normal event played.
-	 *   1 = Timer armed. Suspend playback until timer callback.
-	 *   2 = MIDI output buffer full. Restore queue and suspend until timer
-	 */
-	unsigned int *delay;
-
-	switch (q[0])
-	{
-		case SEQ_NOTEOFF:
-			if (synth_open_mask & (1 << 0))
-				if (synth_devs[0])
-					synth_devs[0]->kill_note(0, q[1], 255, q[3]);
-			break;
-
-		case SEQ_NOTEON:
-			if (q[4] < 128 || q[4] == 255)
-				if (synth_open_mask & (1 << 0))
-					if (synth_devs[0])
-						synth_devs[0]->start_note(0, q[1], q[2], q[3]);
-			break;
-
-		case SEQ_WAIT:
-			delay = (unsigned int *) q;	/*
-							 * Bytes 1 to 3 are containing the *
-							 * delay in 'ticks'
-							 */
-			*delay = (*delay >> 8) & 0xffffff;
-
-			if (*delay > 0)
-			{
-				long time;
-
-				seq_playing = 1;
-				time = *delay;
-				prev_event_time = time;
-
-				request_sound_timer(time);
-
-				if ((SEQ_MAX_QUEUE - qlen) >= output_threshold)
-					wake_up(&seq_sleeper);
-				/*
-				 * The timer is now active and will reinvoke this function
-				 * after the timer expires. Return to the caller now.
-				 */
-				return 1;
-			}
-			break;
-
-		case SEQ_PGMCHANGE:
-			if (synth_open_mask & (1 << 0))
-				if (synth_devs[0])
-					synth_devs[0]->set_instr(0, q[1], q[2]);
-			break;
-
-		case SEQ_SYNCTIMER: 	/*
-					 * Reset timer
-					 */
-			seq_time = jiffies;
-			prev_input_time = 0;
-			prev_event_time = 0;
-			break;
-
-		case SEQ_MIDIPUTC:	/*
-					 * Put a midi character
-					 */
-			if (midi_opened[q[2]])
-			{
-				int dev;
-
-				dev = q[2];
-
-				if (dev < 0 || dev >= num_midis || midi_devs[dev] == NULL)
-					break;
-
-				if (!midi_devs[dev]->outputc(dev, q[1]))
-				{
-					/*
-					 * Output FIFO is full. Wait one timer cycle and try again.
-					 */
-
-					seq_playing = 1;
-					request_sound_timer(-1);
-					return 2;
-				}
-				else
-					midi_written[dev] = 1;
-			}
-			break;
-
-		case SEQ_ECHO:
-			seq_copy_to_input(q, 4);	/*
-							 * Echo back to the process
-							 */
-			break;
-
-		case SEQ_PRIVATE:
-			if ((int) q[1] < max_synthdev)
-				synth_devs[q[1]]->hw_control(q[1], q);
-			break;
-
-		case SEQ_EXTENDED:
-			extended_event(q);
-			break;
-
-		case EV_CHN_VOICE:
-			seq_chn_voice_event(q);
-			break;
-
-		case EV_CHN_COMMON:
-			seq_chn_common_event(q);
-			break;
-
-		case EV_TIMING:
-			if (seq_timing_event(q) == TIMER_ARMED)
-			{
-				return 1;
-			}
-			break;
-
-		case EV_SEQ_LOCAL:
-			seq_local_event(q);
-			break;
-
-		case EV_SYSEX:
-			seq_sysex_message(q);
-			break;
-
-		default:;
-	}
-	return 0;
-}
-
-/* called also as timer in irq context */
-static void seq_startplay(void)
-{
-	int this_one, action;
-	unsigned long flags;
-
-	while (qlen > 0)
-	{
-
-		spin_lock_irqsave(&lock,flags);
-		qhead = ((this_one = qhead) + 1) % SEQ_MAX_QUEUE;
-		qlen--;
-		spin_unlock_irqrestore(&lock,flags);
-
-		seq_playing = 1;
-
-		if ((action = play_event(&queue[this_one * EV_SZ])))
-		{		/* Suspend playback. Next timer routine invokes this routine again */
-			if (action == 2)
-			{
-				qlen++;
-				qhead = this_one;
-			}
-			return;
-		}
-	}
-
-	seq_playing = 0;
-
-	if ((SEQ_MAX_QUEUE - qlen) >= output_threshold)
-		wake_up(&seq_sleeper);
-}
-
-static void reset_controllers(int dev, unsigned char *controller, int update_dev)
-{
-	int i;
-	for (i = 0; i < 128; i++)
-		controller[i] = ctrl_def_values[i];
-}
-
-static void setup_mode2(void)
-{
-	int dev;
-
-	max_synthdev = num_synths;
-
-	for (dev = 0; dev < num_midis; dev++)
-	{
-		if (midi_devs[dev] && midi_devs[dev]->converter != NULL)
-		{
-			synth_devs[max_synthdev++] = midi_devs[dev]->converter;
-		}
-	}
-
-	for (dev = 0; dev < max_synthdev; dev++)
-	{
-		int chn;
-
-		synth_devs[dev]->sysex_ptr = 0;
-		synth_devs[dev]->emulation = 0;
-
-		for (chn = 0; chn < 16; chn++)
-		{
-			synth_devs[dev]->chn_info[chn].pgm_num = 0;
-			reset_controllers(dev,
-				synth_devs[dev]->chn_info[chn].controllers,0);
-			synth_devs[dev]->chn_info[chn].bender_value = (1 << 7);	/* Neutral */
-			synth_devs[dev]->chn_info[chn].bender_range = 200;
-		}
-	}
-	max_mididev = 0;
-	seq_mode = SEQ_2;
-}
-
-int sequencer_open(int dev, struct file *file)
-{
-	int retval, mode, i;
-	int level, tmp;
-
-	if (!sequencer_ok)
-		sequencer_init();
-
-	level = ((dev & 0x0f) == SND_DEV_SEQ2) ? 2 : 1;
-
-	dev = dev >> 4;
-	mode = translate_mode(file);
-
-	if (!sequencer_ok)
-	{
-/*		printk("Sound card: sequencer not initialized\n");*/
-		return -ENXIO;
-	}
-	if (dev)		/* Patch manager device (obsolete) */
-		return -ENXIO;
-
-	if(synth_devs[dev] == NULL)
-		request_module("synth0");
-
-	if (mode == OPEN_READ)
-	{
-		if (!num_midis)
-		{
-			/*printk("Sequencer: No MIDI devices. Input not possible\n");*/
-			sequencer_busy = 0;
-			return -ENXIO;
-		}
-	}
-	if (sequencer_busy)
-	{
-		return -EBUSY;
-	}
-	sequencer_busy = 1;
-	obsolete_api_used = 0;
-
-	max_mididev = num_midis;
-	max_synthdev = num_synths;
-	pre_event_timeout = MAX_SCHEDULE_TIMEOUT;
-	seq_mode = SEQ_1;
-
-	if (pending_timer != -1)
-	{
-		tmr_no = pending_timer;
-		pending_timer = -1;
-	}
-	if (tmr_no == -1)	/* Not selected yet */
-	{
-		int i, best;
-
-		best = -1;
-		for (i = 0; i < num_sound_timers; i++)
-			if (sound_timer_devs[i] && sound_timer_devs[i]->priority > best)
-			{
-				tmr_no = i;
-				best = sound_timer_devs[i]->priority;
-			}
-		if (tmr_no == -1)	/* Should not be */
-			tmr_no = 0;
-	}
-	tmr = sound_timer_devs[tmr_no];
-
-	if (level == 2)
-	{
-		if (tmr == NULL)
-		{
-			/*printk("sequencer: No timer for level 2\n");*/
-			sequencer_busy = 0;
-			return -ENXIO;
-		}
-		setup_mode2();
-	}
-	if (!max_synthdev && !max_mididev)
-	{
-		sequencer_busy=0;
-		return -ENXIO;
-	}
-
-	synth_open_mask = 0;
-
-	for (i = 0; i < max_mididev; i++)
-	{
-		midi_opened[i] = 0;
-		midi_written[i] = 0;
-	}
-
-	for (i = 0; i < max_synthdev; i++)
-	{
-		if (synth_devs[i]==NULL)
-			continue;
-
-		if (!try_module_get(synth_devs[i]->owner))
-			continue;
-
-		if ((tmp = synth_devs[i]->open(i, mode)) < 0)
-		{
-			printk(KERN_WARNING "Sequencer: Warning! Cannot open synth device #%d (%d)\n", i, tmp);
-			if (synth_devs[i]->midi_dev)
-				printk(KERN_WARNING "(Maps to MIDI dev #%d)\n", synth_devs[i]->midi_dev);
-		}
-		else
-		{
-			synth_open_mask |= (1 << i);
-			if (synth_devs[i]->midi_dev)
-				midi_opened[synth_devs[i]->midi_dev] = 1;
-		}
-	}
-
-	seq_time = jiffies;
-
-	prev_input_time = 0;
-	prev_event_time = 0;
-
-	if (seq_mode == SEQ_1 && (mode == OPEN_READ || mode == OPEN_READWRITE))
-	{
-		/*
-		 * Initialize midi input devices
-		 */
-
-		for (i = 0; i < max_mididev; i++)
-			if (!midi_opened[i] && midi_devs[i])
-			{
-				if (!try_module_get(midi_devs[i]->owner))
-					continue;
-	
-				if ((retval = midi_devs[i]->open(i, mode,
-					sequencer_midi_input, sequencer_midi_output)) >= 0)
-				{
-					midi_opened[i] = 1;
-				}
-			}
-	}
-
-	if (seq_mode == SEQ_2) {
-		if (try_module_get(tmr->owner))
-			tmr->open(tmr_no, seq_mode);
-	}
-
- 	init_waitqueue_head(&seq_sleeper);
- 	init_waitqueue_head(&midi_sleeper);
-	output_threshold = SEQ_MAX_QUEUE / 2;
-
-	return 0;
-}
-
-static void seq_drain_midi_queues(void)
-{
-	int i, n;
-
-	/*
-	 * Give the Midi drivers time to drain their output queues
-	 */
-
-	n = 1;
-
-	while (!signal_pending(current) && n)
-	{
-		n = 0;
-
-		for (i = 0; i < max_mididev; i++)
-			if (midi_opened[i] && midi_written[i])
-				if (midi_devs[i]->buffer_status != NULL)
-					if (midi_devs[i]->buffer_status(i))
-						n++;
-
-		/*
-		 * Let's have a delay
-		 */
-
- 		if (n)
-			oss_broken_sleep_on(&seq_sleeper, HZ/10);
-	}
-}
-
-void sequencer_release(int dev, struct file *file)
-{
-	int i;
-	int mode = translate_mode(file);
-
-	dev = dev >> 4;
-
-	/*
-	 * Wait until the queue is empty (if we don't have nonblock)
-	 */
-
-	if (mode != OPEN_READ && !(file->f_flags & O_NONBLOCK))
-	{
-		while (!signal_pending(current) && qlen > 0)
-		{
-  			seq_sync();
-			oss_broken_sleep_on(&seq_sleeper, 3*HZ);
- 			/* Extra delay */
-		}
-	}
-
-	if (mode != OPEN_READ)
-		seq_drain_midi_queues();	/*
-						 * Ensure the output queues are empty
-						 */
-	seq_reset();
-	if (mode != OPEN_READ)
-		seq_drain_midi_queues();	/*
-						 * Flush the all notes off messages
-						 */
-
-	for (i = 0; i < max_synthdev; i++)
-	{
-		if (synth_open_mask & (1 << i))	/*
-						 * Actually opened
-						 */
-			if (synth_devs[i])
-			{
-				synth_devs[i]->close(i);
-
-				module_put(synth_devs[i]->owner);
-
-				if (synth_devs[i]->midi_dev)
-					midi_opened[synth_devs[i]->midi_dev] = 0;
-			}
-	}
-
-	for (i = 0; i < max_mididev; i++)
-	{
-		if (midi_opened[i]) {
-			midi_devs[i]->close(i);
-			module_put(midi_devs[i]->owner);
-		}
-	}
-
-	if (seq_mode == SEQ_2) {
-		tmr->close(tmr_no);
-		module_put(tmr->owner);
-	}
-
-	if (obsolete_api_used)
-		printk(KERN_WARNING "/dev/music: Obsolete (4 byte) API was used by %s\n", current->comm);
-	sequencer_busy = 0;
-}
-
-static int seq_sync(void)
-{
-	if (qlen && !seq_playing && !signal_pending(current))
-		seq_startplay();
-
- 	if (qlen > 0)
-		oss_broken_sleep_on(&seq_sleeper, HZ);
-	return qlen;
-}
-
-static void midi_outc(int dev, unsigned char data)
-{
-	/*
-	 * NOTE! Calls sleep(). Don't call this from interrupt.
-	 */
-
-	int n;
-	unsigned long flags;
-
-	/*
-	 * This routine sends one byte to the Midi channel.
-	 * If the output FIFO is full, it waits until there
-	 * is space in the queue
-	 */
-
-	n = 3 * HZ;		/* Timeout */
-
-	spin_lock_irqsave(&lock,flags);
- 	while (n && !midi_devs[dev]->outputc(dev, data)) {
-		oss_broken_sleep_on(&seq_sleeper, HZ/25);
-  		n--;
-  	}
-	spin_unlock_irqrestore(&lock,flags);
-}
-
-static void seq_reset(void)
-{
-	/*
-	 * NOTE! Calls sleep(). Don't call this from interrupt.
-	 */
-
-	int i;
-	int chn;
-	unsigned long flags;
-
-	sound_stop_timer();
-
-	seq_time = jiffies;
-	prev_input_time = 0;
-	prev_event_time = 0;
-
-	qlen = qhead = qtail = 0;
-	iqlen = iqhead = iqtail = 0;
-
-	for (i = 0; i < max_synthdev; i++)
-		if (synth_open_mask & (1 << i))
-			if (synth_devs[i])
-				synth_devs[i]->reset(i);
-
-	if (seq_mode == SEQ_2)
-	{
-		for (chn = 0; chn < 16; chn++)
-			for (i = 0; i < max_synthdev; i++)
-				if (synth_open_mask & (1 << i))
-					if (synth_devs[i])
-					{
-						synth_devs[i]->controller(i, chn, 123, 0);	/* All notes off */
-						synth_devs[i]->controller(i, chn, 121, 0);	/* Reset all ctl */
-						synth_devs[i]->bender(i, chn, 1 << 13);	/* Bender off */
-					}
-	}
-	else	/* seq_mode == SEQ_1 */
-	{
-		for (i = 0; i < max_mididev; i++)
-			if (midi_written[i])	/*
-						 * Midi used. Some notes may still be playing
-						 */
-			{
-				/*
-				 *      Sending just a ACTIVE SENSING message should be enough to stop all
-				 *      playing notes. Since there are devices not recognizing the
-				 *      active sensing, we have to send some all notes off messages also.
-				 */
-				midi_outc(i, 0xfe);
-
-				for (chn = 0; chn < 16; chn++)
-				{
-					midi_outc(i, (unsigned char) (0xb0 + (chn & 0x0f)));		/* control change */
-					midi_outc(i, 0x7b);	/* All notes off */
-					midi_outc(i, 0);	/* Dummy parameter */