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, 280 deletions

diff --git a/sound/oss/sys_timer.c b/sound/oss/sys_timer.c
deleted file mode 100644
index d17019d25b99..000000000000
--- a/sound/oss/sys_timer.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * sound/oss/sys_timer.c
- *
- * The default timer for the Level 2 sequencer interface
- * Uses the (1/HZ sec) timer of kernel.
- */
-/*
- * 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)
- * Andrew Veliath  : adapted tmr2ticks from level 1 sequencer (avoid overflow)
- */
-#include <linux/spinlock.h>
-#include "sound_config.h"
-
-static volatile int 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 void     poll_def_tmr(unsigned long dummy);
-static DEFINE_SPINLOCK(lock);
-static DEFINE_TIMER(def_tmr, poll_def_tmr, 0, 0);
-
-static unsigned long
-tmr2ticks(int tmr_value)
-{
-	/*
-	 *    Convert timer ticks to MIDI ticks
-	 */
-
-	unsigned long tmp;
-	unsigned long scale;
-
-	/* tmr_value (ticks per sec) *
-	   1000000 (usecs per sec) / HZ (ticks per sec) -=> usecs */
-	tmp = tmr_value * (1000000 / HZ);
-	scale = (60 * 1000000) / (curr_tempo * curr_timebase);	/* usecs per MIDI tick */
-	return (tmp + scale / 2) / scale;
-}
-
-static void
-poll_def_tmr(unsigned long dummy)
-{
-	if (!opened)
-		return;
-	def_tmr.expires = (1) + jiffies;
-	add_timer(&def_tmr);
-
-	if (!tmr_running)
-		return;
-
-	spin_lock(&lock);
-	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(&lock);
-}
-
-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
-def_tmr_open(int dev, int mode)
-{
-	if (opened)
-		return -EBUSY;
-
-	tmr_reset();
-	curr_tempo = 60;
-	curr_timebase = 100;
-	opened = 1;
-	{
-		def_tmr.expires = (1) + jiffies;
-		add_timer(&def_tmr);
-	}
-
-	return 0;
-}
-
-static void
-def_tmr_close(int dev)
-{
-	opened = tmr_running = 0;
-	del_timer(&def_tmr);
-}
-
-static int
-def_tmr_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;
-		  break;
-
-	  case TMR_STOP:
-		  tmr_running = 0;
-		  break;
-
-	  case TMR_CONTINUE:
-		  tmr_running = 1;
-		  break;
-
-	  case TMR_TEMPO:
-		  if (parm)
-		    {
-			    if (parm < 8)
-				    parm = 8;
-			    if (parm > 360)
-				    parm = 360;
-			    tmr_offs = tmr_ctr;
-			    ticks_offs += tmr2ticks(tmr_ctr);
-			    tmr_ctr = 0;
-			    curr_tempo = parm;
-		    }
-		  break;
-
-	  case TMR_ECHO:
-		  seq_copy_to_input(event, 8);
-		  break;
-
-	  default:;
-	  }
-
-	return TIMER_NOT_ARMED;
-}
-
-static unsigned long
-def_tmr_get_time(int dev)
-{
-	if (!opened)
-		return 0;
-
-	return curr_ticks;
-}
-
-/* same as sound_timer.c:timer_ioctl!? */
-static int def_tmr_ioctl(int dev, unsigned int cmd, void __user *arg)
-{
-	int __user *p = arg;
-	int val;
-
-	switch (cmd) {
-	case SNDCTL_TMR_SOURCE:
-		return __put_user(TMR_INTERNAL, p);
-
-	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;
-		}
-		return __put_user(curr_timebase, p);
-
-	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();
-		}
-		return __put_user(curr_tempo, p);
-
-	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;
-		return __put_user(val, p);
-		
-	case SNDCTL_SEQ_GETTIME:
-		return __put_user(curr_ticks, p);
-		
-	case SNDCTL_TMR_METRONOME:
-		/* NOP */
-		break;
-		
-	default:;
-	}
-	return -EINVAL;
-}
-
-static void
-def_tmr_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;
-}
-
-struct sound_timer_operations default_sound_timer =
-{
-	.owner		= THIS_MODULE,
-	.info		= {"System clock", 0},
-	.priority	= 0,	/* Priority */
-	.devlink	= 0,	/* Local device link */
-	.open		= def_tmr_open,
-	.close		= def_tmr_close,
-	.event		= def_tmr_event,
-	.get_time	= def_tmr_get_time,
-	.ioctl		= def_tmr_ioctl,
-	.arm_timer	= def_tmr_arm
-};