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, 419 deletions

diff --git a/sound/oss/pas2_pcm.c b/sound/oss/pas2_pcm.c
deleted file mode 100644
index 474803b52f7d..000000000000
--- a/sound/oss/pas2_pcm.c
+++ /dev/null
@@ -1,419 +0,0 @@
-/*
- * pas2_pcm.c Audio routines for PAS16
- *
- *
- * 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	   : Swatted a double allocation of device bug. Made a few
- *		     more things module options.
- * Bartlomiej Zolnierkiewicz : Added __init to pas_pcm_init()
- */
-
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/timex.h>
-#include "sound_config.h"
-
-#include "pas2.h"
-
-#define PAS_PCM_INTRBITS (0x08)
-/*
- * Sample buffer timer interrupt enable
- */
-
-#define PCM_NON	0
-#define PCM_DAC	1
-#define PCM_ADC	2
-
-static unsigned long pcm_speed; 	/* sampling rate */
-static unsigned char pcm_channels = 1;	/* channels (1 or 2) */
-static unsigned char pcm_bits = 8;	/* bits/sample (8 or 16) */
-static unsigned char pcm_filter;	/* filter FLAG */
-static unsigned char pcm_mode = PCM_NON;
-static unsigned long pcm_count;
-static unsigned short pcm_bitsok = 8;	/* mask of OK bits */
-static int      pcm_busy;
-int             pas_audiodev = -1;
-static int      open_mode;
-
-extern spinlock_t pas_lock;
-
-static int pcm_set_speed(int arg)
-{
-	int foo, tmp;
-	unsigned long flags;
-
-	if (arg == 0)
-		return pcm_speed;
-
-	if (arg > 44100)
-		arg = 44100;
-	if (arg < 5000)
-		arg = 5000;
-
-	if (pcm_channels & 2)
-	{
-		foo = ((PIT_TICK_RATE / 2) + (arg / 2)) / arg;
-		arg = ((PIT_TICK_RATE / 2) + (foo / 2)) / foo;
-	}
-	else
-	{
-		foo = (PIT_TICK_RATE + (arg / 2)) / arg;
-		arg = (PIT_TICK_RATE + (foo / 2)) / foo;
-	}
-
-	pcm_speed = arg;
-
-	tmp = pas_read(0x0B8A);
-
-	/*
-	 * Set anti-aliasing filters according to sample rate. You really *NEED*
-	 * to enable this feature for all normal recording unless you want to
-	 * experiment with aliasing effects.
-	 * These filters apply to the selected "recording" source.
-	 * I (pfw) don't know the encoding of these 5 bits. The values shown
-	 * come from the SDK found on ftp.uwp.edu:/pub/msdos/proaudio/.
-	 *
-	 * I cleared bit 5 of these values, since that bit controls the master
-	 * mute flag. (Olav Wölfelschneider)
-	 *
-	 */
-#if !defined NO_AUTO_FILTER_SET
-	tmp &= 0xe0;
-	if (pcm_speed >= 2 * 17897)
-		tmp |= 0x01;
-	else if (pcm_speed >= 2 * 15909)
-		tmp |= 0x02;
-	else if (pcm_speed >= 2 * 11931)
-		tmp |= 0x09;
-	else if (pcm_speed >= 2 * 8948)
-		tmp |= 0x11;
-	else if (pcm_speed >= 2 * 5965)
-		tmp |= 0x19;
-	else if (pcm_speed >= 2 * 2982)
-		tmp |= 0x04;
-	pcm_filter = tmp;
-#endif
-
-	spin_lock_irqsave(&pas_lock, flags);
-
-	pas_write(tmp & ~(0x40 | 0x80), 0x0B8A);
-	pas_write(0x00 | 0x30 | 0x04, 0x138B);
-	pas_write(foo & 0xff, 0x1388);
-	pas_write((foo >> 8) & 0xff, 0x1388);
-	pas_write(tmp, 0x0B8A);
-
-	spin_unlock_irqrestore(&pas_lock, flags);
-
-	return pcm_speed;
-}
-
-static int pcm_set_channels(int arg)
-{
-
-	if ((arg != 1) && (arg != 2))
-		return pcm_channels;
-
-	if (arg != pcm_channels)
-	{
-		pas_write(pas_read(0xF8A) ^ 0x20, 0xF8A);
-
-		pcm_channels = arg;
-		pcm_set_speed(pcm_speed);	/* The speed must be reinitialized */
-	}
-	return pcm_channels;
-}
-
-static int pcm_set_bits(int arg)
-{
-	if (arg == 0)
-		return pcm_bits;
-
-	if ((arg & pcm_bitsok) != arg)
-		return pcm_bits;
-
-	if (arg != pcm_bits)
-	{
-		pas_write(pas_read(0x8389) ^ 0x04, 0x8389);
-
-		pcm_bits = arg;
-	}
-	return pcm_bits;
-}
-
-static int pas_audio_ioctl(int dev, unsigned int cmd, void __user *arg)
-{
-	int val, ret;
-	int __user *p = arg;
-
-	switch (cmd) 
-	{
-	case SOUND_PCM_WRITE_RATE:
-		if (get_user(val, p)) 
-			return -EFAULT;
-		ret = pcm_set_speed(val);
-		break;
-
-	case SOUND_PCM_READ_RATE:
-		ret = pcm_speed;
-		break;
-		
-	case SNDCTL_DSP_STEREO:
-		if (get_user(val, p)) 
-			return -EFAULT;
-		ret = pcm_set_channels(val + 1) - 1;
-		break;
-
-	case SOUND_PCM_WRITE_CHANNELS:
-		if (get_user(val, p)) 
-			return -EFAULT;
-		ret = pcm_set_channels(val);
-		break;
-
-	case SOUND_PCM_READ_CHANNELS:
-		ret = pcm_channels;
-		break;
-
-	case SNDCTL_DSP_SETFMT:
-		if (get_user(val, p))
-			return -EFAULT;
-		ret = pcm_set_bits(val);
-		break;
-		
-	case SOUND_PCM_READ_BITS:
-		ret = pcm_bits;
-		break;
-  
-	default:
-		return -EINVAL;
-	}
-	return put_user(ret, p);
-}
-
-static void pas_audio_reset(int dev)
-{
-	pas_write(pas_read(0xF8A) & ~0x40, 0xF8A);	/* Disable PCM */
-}
-
-static int pas_audio_open(int dev, int mode)
-{
-	int             err;
-	unsigned long   flags;
-
-	spin_lock_irqsave(&pas_lock, flags);
-	if (pcm_busy)
-	{
-		spin_unlock_irqrestore(&pas_lock, flags);
-		return -EBUSY;
-	}
-	pcm_busy = 1;
-	spin_unlock_irqrestore(&pas_lock, flags);
-
-	if ((err = pas_set_intr(PAS_PCM_INTRBITS)) < 0)
-		return err;
-
-
-	pcm_count = 0;
-	open_mode = mode;
-
-	return 0;
-}
-
-static void pas_audio_close(int dev)
-{
-	unsigned long   flags;
-
-	spin_lock_irqsave(&pas_lock, flags);
-
-	pas_audio_reset(dev);
-	pas_remove_intr(PAS_PCM_INTRBITS);
-	pcm_mode = PCM_NON;
-
-	pcm_busy = 0;
-	spin_unlock_irqrestore(&pas_lock, flags);
-}
-
-static void pas_audio_output_block(int dev, unsigned long buf, int count,
-		       int intrflag)
-{
-	unsigned long   flags, cnt;
-
-	cnt = count;
-	if (audio_devs[dev]->dmap_out->dma > 3)
-		cnt >>= 1;
-
-	if (audio_devs[dev]->flags & DMA_AUTOMODE &&
-	    intrflag &&
-	    cnt == pcm_count)
-		return;
-
-	spin_lock_irqsave(&pas_lock, flags);
-
-	pas_write(pas_read(0xF8A) & ~0x40,
-		  0xF8A);
-
-	/* DMAbuf_start_dma (dev, buf, count, DMA_MODE_WRITE); */
-
-	if (audio_devs[dev]->dmap_out->dma > 3)
-		count >>= 1;
-
-	if (count != pcm_count)
-	{
-		pas_write(pas_read(0x0B8A) & ~0x80, 0x0B8A);
-		pas_write(0x40 | 0x30 | 0x04, 0x138B);
-		pas_write(count & 0xff, 0x1389);
-		pas_write((count >> 8) & 0xff, 0x1389);
-		pas_write(pas_read(0x0B8A) | 0x80, 0x0B8A);
-
-		pcm_count = count;
-	}
-	pas_write(pas_read(0x0B8A) | 0x80 | 0x40, 0x0B8A);
-#ifdef NO_TRIGGER
-	pas_write(pas_read(0xF8A) | 0x40 | 0x10, 0xF8A);
-#endif
-
-	pcm_mode = PCM_DAC;
-
-	spin_unlock_irqrestore(&pas_lock, flags);
-}
-
-static void pas_audio_start_input(int dev, unsigned long buf, int count,
-		      int intrflag)
-{
-	unsigned long   flags;
-	int             cnt;
-
-	cnt = count;
-	if (audio_devs[dev]->dmap_out->dma > 3)
-		cnt >>= 1;
-
-	if (audio_devs[pas_audiodev]->flags & DMA_AUTOMODE &&
-	    intrflag &&
-	    cnt == pcm_count)
-		return;
-
-	spin_lock_irqsave(&pas_lock, flags);
-
-	/* DMAbuf_start_dma (dev, buf, count, DMA_MODE_READ); */
-
-	if (audio_devs[dev]->dmap_out->dma > 3)
-		count >>= 1;
-
-	if (count != pcm_count)
-	{
-		pas_write(pas_read(0x0B8A) & ~0x80, 0x0B8A);
-		pas_write(0x40 | 0x30 | 0x04, 0x138B);
-		pas_write(count & 0xff, 0x1389);
-		pas_write((count >> 8) & 0xff, 0x1389);
-		pas_write(pas_read(0x0B8A) | 0x80, 0x0B8A);
-
-		pcm_count = count;
-	}
-	pas_write(pas_read(0x0B8A) | 0x80 | 0x40, 0x0B8A);
-#ifdef NO_TRIGGER
-	pas_write((pas_read(0xF8A) | 0x40) & ~0x10, 0xF8A);
-#endif
-
-	pcm_mode = PCM_ADC;
-
-	spin_unlock_irqrestore(&pas_lock, flags);
-}
-
-#ifndef NO_TRIGGER
-static void pas_audio_trigger(int dev, int state)
-{
-	unsigned long   flags;
-
-	spin_lock_irqsave(&pas_lock, flags);
-	state &= open_mode;
-
-	if (state & PCM_ENABLE_OUTPUT)
-		pas_write(pas_read(0xF8A) | 0x40 | 0x10, 0xF8A);
-	else if (state & PCM_ENABLE_INPUT)
-		pas_write((pas_read(0xF8A) | 0x40) & ~0x10, 0xF8A);
-	else
-		pas_write(pas_read(0xF8A) & ~0x40, 0xF8A);
-
-	spin_unlock_irqrestore(&pas_lock, flags);
-}
-#endif
-
-static int pas_audio_prepare_for_input(int dev, int bsize, int bcount)
-{
-	pas_audio_reset(dev);
-	return 0;
-}
-
-static int pas_audio_prepare_for_output(int dev, int bsize, int bcount)
-{
-	pas_audio_reset(dev);
-	return 0;
-}
-
-static struct audio_driver pas_audio_driver =
-{
-	.owner			= THIS_MODULE,
-	.open			= pas_audio_open,
-	.close			= pas_audio_close,
-	.output_block		= pas_audio_output_block,
-	.start_input		= pas_audio_start_input,
-	.ioctl			= pas_audio_ioctl,
-	.prepare_for_input	= pas_audio_prepare_for_input,
-	.prepare_for_output	= pas_audio_prepare_for_output,
-	.halt_io		= pas_audio_reset,
-	.trigger		= pas_audio_trigger
-};
-
-void __init pas_pcm_init(struct address_info *hw_config)
-{
-	pcm_bitsok = 8;
-	if (pas_read(0xEF8B) & 0x08)
-		pcm_bitsok |= 16;
-
-	pcm_set_speed(DSP_DEFAULT_SPEED);
-
-	if ((pas_audiodev = sound_install_audiodrv(AUDIO_DRIVER_VERSION,
-					"Pro Audio Spectrum",
-					&pas_audio_driver,
-					sizeof(struct audio_driver),
-					DMA_AUTOMODE,
-					AFMT_U8 | AFMT_S16_LE,
-					NULL,
-					hw_config->dma,
-					hw_config->dma)) < 0)
-		printk(KERN_WARNING "PAS16: Too many PCM devices available\n");
-}
-
-void pas_pcm_interrupt(unsigned char status, int cause)
-{
-	if (cause == 1)
-	{
-		/*
-		 * Halt the PCM first. Otherwise we don't have time to start a new
-		 * block before the PCM chip proceeds to the next sample
-		 */
-
-		if (!(audio_devs[pas_audiodev]->flags & DMA_AUTOMODE))
-			pas_write(pas_read(0xF8A) & ~0x40, 0xF8A);
-
-		switch (pcm_mode)
-		{
-			case PCM_DAC:
-				DMAbuf_outputintr(pas_audiodev, 1);
-				break;
-
-			case PCM_ADC:
-				DMAbuf_inputintr(pas_audiodev);
-				break;
-
-			default:
-				printk(KERN_WARNING "PAS: Unexpected PCM interrupt\n");
-		}
-	}
-}