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, 327 deletions

diff --git a/sound/oss/sound_timer.c b/sound/oss/sound_timer.c
deleted file mode 100644
index 3a444a6f10eb..000000000000
--- a/sound/oss/sound_timer.c
+++ /dev/null
@@ -1,327 +0,0 @@
-/*
- * sound/oss/sound_timer.c
- */
-/*
- * 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)
- */
-#include <linux/string.h>
-#include <linux/spinlock.h>
-
-#include "sound_config.h"
-
-static volatile int initialized, opened, tmr_running;
-static volatile unsigned int tmr_offs, tmr_ctr;
-static volatile unsigned long ticks_offs;
-static volatile int curr_tempo, curr_timebase;
-static volatile unsigned long curr_ticks;
-static volatile unsigned long next_event_time;
-static unsigned long prev_event_time;
-static volatile unsigned long usecs_per_tmr;	/* Length of the current interval */
-
-static struct sound_lowlev_timer *tmr;
-static DEFINE_SPINLOCK(lock);
-
-static unsigned long tmr2ticks(int tmr_value)
-{
-	/*
-	 *    Convert timer ticks to MIDI ticks
-	 */
-
-	unsigned long tmp;
-	unsigned long scale;
-
-	tmp = tmr_value * usecs_per_tmr;	/* Convert to usecs */
-	scale = (60 * 1000000) / (curr_tempo * curr_timebase);	/* usecs per MIDI tick */
-	return (tmp + (scale / 2)) / scale;
-}
-
-void reprogram_timer(void)
-{
-	unsigned long   usecs_per_tick;
-
-	/*
-	 *	The user is changing the timer rate before setting a timer
-	 *	slap, bad bad not allowed.
-	 */
-	 
-	if(!tmr)
-		return;
-		
-	usecs_per_tick = (60 * 1000000) / (curr_tempo * curr_timebase);
-
-	/*
-	 * Don't kill the system by setting too high timer rate
-	 */
-	if (usecs_per_tick < 2000)
-		usecs_per_tick = 2000;
-
-	usecs_per_tmr = tmr->tmr_start(tmr->dev, usecs_per_tick);
-}
-
-void sound_timer_syncinterval(unsigned int new_usecs)
-{
-	/*
-	 *    This routine is called by the hardware level if
-	 *      the clock frequency has changed for some reason.
-	 */
-	tmr_offs = tmr_ctr;
-	ticks_offs += tmr2ticks(tmr_ctr);
-	tmr_ctr = 0;
-	usecs_per_tmr = new_usecs;
-}
-EXPORT_SYMBOL(sound_timer_syncinterval);
-
-static void tmr_reset(void)
-{
-	unsigned long   flags;
-
-	spin_lock_irqsave(&lock,flags);
-	tmr_offs = 0;
-	ticks_offs = 0;
-	tmr_ctr = 0;
-	next_event_time = (unsigned long) -1;
-	prev_event_time = 0;
-	curr_ticks = 0;
-	spin_unlock_irqrestore(&lock,flags);
-}
-
-static int timer_open(int dev, int mode)
-{
-	if (opened)
-		return -EBUSY;
-	tmr_reset();
-	curr_tempo = 60;
-	curr_timebase = 100;
-	opened = 1;
-	reprogram_timer();
-	return 0;
-}
-
-static void timer_close(int dev)
-{
-	opened = tmr_running = 0;
-	tmr->tmr_disable(tmr->dev);
-}
-
-static int timer_event(int dev, unsigned char *event)
-{
-	unsigned char cmd = event[1];
-	unsigned long parm = *(int *) &event[4];
-
-	switch (cmd)
-	{
-		case TMR_WAIT_REL:
-			parm += prev_event_time;
-		case TMR_WAIT_ABS:
-			if (parm > 0)
-			{
-				long time;
-
-				if (parm <= curr_ticks)	/* It's the time */
-					return TIMER_NOT_ARMED;
-				time = parm;
-				next_event_time = prev_event_time = time;
-				return TIMER_ARMED;
-			}
-			break;
-
-		case TMR_START:
-			tmr_reset();
-			tmr_running = 1;
-			reprogram_timer();
-			break;
-
-		case TMR_STOP:
-			tmr_running = 0;
-			break;
-
-		case TMR_CONTINUE:
-			tmr_running = 1;
-			reprogram_timer();
-			break;
-
-		case TMR_TEMPO:
-			if (parm)
-			{
-				if (parm < 8)
-					parm = 8;
-				if (parm > 250)
-					parm = 250;
-				tmr_offs = tmr_ctr;
-				ticks_offs += tmr2ticks(tmr_ctr);
-				tmr_ctr = 0;
-				curr_tempo = parm;
-				reprogram_timer();
-			}
-			break;
-
-		case TMR_ECHO:
-			seq_copy_to_input(event, 8);
-			break;
-
-		default:;
-	}
-	return TIMER_NOT_ARMED;
-}
-
-static unsigned long timer_get_time(int dev)
-{
-	if (!opened)
-		return 0;
-	return curr_ticks;
-}
-
-static int timer_ioctl(int dev, unsigned int cmd, void __user *arg)
-{
-	int __user *p = arg;
-	int val;
-
-	switch (cmd) 
-	{
-		case SNDCTL_TMR_SOURCE:
-			val = TMR_INTERNAL;
-			break;
-
-		case SNDCTL_TMR_START:
-			tmr_reset();
-			tmr_running = 1;
-			return 0;
-		
-		case SNDCTL_TMR_STOP:
-			tmr_running = 0;
-			return 0;
-
-		case SNDCTL_TMR_CONTINUE:
-			tmr_running = 1;
-			return 0;
-
-		case SNDCTL_TMR_TIMEBASE:
-			if (get_user(val, p))
-				return -EFAULT;
-			if (val) 
-			{
-				if (val < 1)
-					val = 1;
-				if (val > 1000)
-					val = 1000;
-				curr_timebase = val;
-			}
-			val = curr_timebase;
-			break;
-
-		case SNDCTL_TMR_TEMPO:
-			if (get_user(val, p))
-				return -EFAULT;
-			if (val) 
-			{
-				if (val < 8)
-					val = 8;
-				if (val > 250)
-					val = 250;
-				tmr_offs = tmr_ctr;
-				ticks_offs += tmr2ticks(tmr_ctr);
-				tmr_ctr = 0;
-				curr_tempo = val;
-				reprogram_timer();
-			}
-			val = curr_tempo;
-			break;
-
-		case SNDCTL_SEQ_CTRLRATE:
-			if (get_user(val, p))
-				return -EFAULT;
-			if (val != 0)	/* Can't change */
-				return -EINVAL;
-			val = ((curr_tempo * curr_timebase) + 30) / 60;
-			break;
-		
-		case SNDCTL_SEQ_GETTIME:
-			val = curr_ticks;
-			break;
-		
-		case SNDCTL_TMR_METRONOME:
-		default:
-			return -EINVAL;
-	}
-	return put_user(val, p);
-}
-
-static void timer_arm(int dev, long time)
-{
-	if (time < 0)
-		time = curr_ticks + 1;
-	else if (time <= curr_ticks)	/* It's the time */
-		return;
-
-	next_event_time = prev_event_time = time;
-	return;
-}
-
-static struct sound_timer_operations sound_timer =
-{
-	.owner		= THIS_MODULE,
-	.info		= {"Sound Timer", 0},
-	.priority	= 1,	/* Priority */
-	.devlink	= 0,	/* Local device link */
-	.open		= timer_open,
-	.close		= timer_close,
-	.event		= timer_event,
-	.get_time	= timer_get_time,
-	.ioctl		= timer_ioctl,
-	.arm_timer	= timer_arm
-};
-
-void sound_timer_interrupt(void)
-{
-	unsigned long flags;
-	
-	if (!opened)
-		return;
-
-	tmr->tmr_restart(tmr->dev);
-
-	if (!tmr_running)
-		return;
-
-	spin_lock_irqsave(&lock,flags);
-	tmr_ctr++;
-	curr_ticks = ticks_offs + tmr2ticks(tmr_ctr);
-
-	if (curr_ticks >= next_event_time)
-	{
-		next_event_time = (unsigned long) -1;
-		sequencer_timer(0);
-	}
-	spin_unlock_irqrestore(&lock,flags);
-}
-EXPORT_SYMBOL(sound_timer_interrupt);
-
-void  sound_timer_init(struct sound_lowlev_timer *t, char *name)
-{
-	int n;
-
-	if (initialized)
-	{
-		if (t->priority <= tmr->priority)
-			return;	/* There is already a similar or better timer */
-		tmr = t;
-		return;
-	}
-	initialized = 1;
-	tmr = t;
-
-	n = sound_alloc_timerdev();
-	if (n == -1)
-		n = 0;		/* Overwrite the system timer */
-	strlcpy(sound_timer.info.name, name, sizeof(sound_timer.info.name));
-	sound_timer_devs[n] = &sound_timer;
-}
-EXPORT_SYMBOL(sound_timer_init);
-