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, 557 deletions

diff --git a/sound/oss/vidc.c b/sound/oss/vidc.c
deleted file mode 100644
index 92ca5bee1860..000000000000
--- a/sound/oss/vidc.c
+++ /dev/null
@@ -1,557 +0,0 @@
-/*
- *  linux/drivers/sound/vidc.c
- *
- *  Copyright (C) 1997-2000 by Russell King <rmk@arm.linux.org.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- *  VIDC20 audio driver.
- *
- * The VIDC20 sound hardware consists of the VIDC20 itself, a DAC and a DMA
- * engine.  The DMA transfers fixed-format (16-bit little-endian linear)
- * samples to the VIDC20, which then transfers this data serially to the
- * DACs.  The samplerate is controlled by the VIDC.
- *
- * We currently support a mixer device, but it is currently non-functional.
- */
-
-#include <linux/gfp.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-
-#include <mach/hardware.h>
-#include <asm/dma.h>
-#include <asm/io.h>
-#include <asm/hardware/iomd.h>
-#include <asm/irq.h>
-
-#include "sound_config.h"
-#include "vidc.h"
-
-#ifndef _SIOC_TYPE
-#define _SIOC_TYPE(x)	_IOC_TYPE(x)
-#endif
-#ifndef _SIOC_NR
-#define _SIOC_NR(x)	_IOC_NR(x)
-#endif
-
-#define VIDC_SOUND_CLOCK	(250000)
-#define VIDC_SOUND_CLOCK_EXT	(176400)
-
-/*
- * When using SERIAL SOUND mode (external DAC), the number of physical
- * channels is fixed at 2.
- */
-static int		vidc_busy;
-static int		vidc_adev;
-static int		vidc_audio_rate;
-static char		vidc_audio_format;
-static char		vidc_audio_channels;
-
-static unsigned char	vidc_level_l[SOUND_MIXER_NRDEVICES] = {
-	85,		/* master	*/
-	50,		/* bass		*/
-	50,		/* treble	*/
-	0,		/* synth	*/
-	75,		/* pcm		*/
-	0,		/* speaker	*/
-	100,		/* ext line	*/
-	0,		/* mic		*/
-	100,		/* CD		*/
-	0,
-};
-
-static unsigned char	vidc_level_r[SOUND_MIXER_NRDEVICES] = {
-	85,		/* master	*/
-	50,		/* bass		*/
-	50,		/* treble	*/
-	0,		/* synth	*/
-	75,		/* pcm		*/
-	0,		/* speaker	*/
-	100,		/* ext line	*/
-	0,		/* mic		*/
-	100,		/* CD		*/
-	0,
-};
-
-static unsigned int	vidc_audio_volume_l;	/* left PCM vol, 0 - 65536 */
-static unsigned int	vidc_audio_volume_r;	/* right PCM vol, 0 - 65536 */
-
-extern void	vidc_update_filler(int bits, int channels);
-extern int	softoss_dev;
-
-static void
-vidc_mixer_set(int mdev, unsigned int level)
-{
-	unsigned int lev_l = level & 0x007f;
-	unsigned int lev_r = (level & 0x7f00) >> 8;
-	unsigned int mlev_l, mlev_r;
-
-	if (lev_l > 100)
-		lev_l = 100;
-	if (lev_r > 100)
-		lev_r = 100;
-
-#define SCALE(lev,master)	((lev) * (master) * 65536 / 10000)
-
-	mlev_l = vidc_level_l[SOUND_MIXER_VOLUME];
-	mlev_r = vidc_level_r[SOUND_MIXER_VOLUME];
-
-	switch (mdev) {
-	case SOUND_MIXER_VOLUME:
-	case SOUND_MIXER_PCM:
-		vidc_level_l[mdev] = lev_l;
-		vidc_level_r[mdev] = lev_r;
-
-		vidc_audio_volume_l = SCALE(lev_l, mlev_l);
-		vidc_audio_volume_r = SCALE(lev_r, mlev_r);
-/*printk("VIDC: PCM vol %05X %05X\n", vidc_audio_volume_l, vidc_audio_volume_r);*/
-		break;
-	}
-#undef SCALE
-}
-
-static int vidc_mixer_ioctl(int dev, unsigned int cmd, void __user *arg)
-{
-	unsigned int val;
-	unsigned int mdev;
-
-	if (_SIOC_TYPE(cmd) != 'M')
-		return -EINVAL;
-
-	mdev = _SIOC_NR(cmd);
-
-	if (_SIOC_DIR(cmd) & _SIOC_WRITE) {
-		if (get_user(val, (unsigned int __user *)arg))
-			return -EFAULT;
-
-		if (mdev < SOUND_MIXER_NRDEVICES)
-			vidc_mixer_set(mdev, val);
-		else
-			return -EINVAL;
-	}
-
-	/*
-	 * Return parameters
-	 */
-	switch (mdev) {
-	case SOUND_MIXER_RECSRC:
-		val = 0;
-		break;
-
-	case SOUND_MIXER_DEVMASK:
-		val = SOUND_MASK_VOLUME | SOUND_MASK_PCM | SOUND_MASK_SYNTH;
-		break;
-
-	case SOUND_MIXER_STEREODEVS:
-		val = SOUND_MASK_VOLUME | SOUND_MASK_PCM | SOUND_MASK_SYNTH;
-		break;
-
-	case SOUND_MIXER_RECMASK:
-		val = 0;
-		break;
-
-	case SOUND_MIXER_CAPS:
-		val = 0;
-		break;
-
-	default:
-		if (mdev < SOUND_MIXER_NRDEVICES)
-			val = vidc_level_l[mdev] | vidc_level_r[mdev] << 8;
-		else
-			return -EINVAL;
-	}
-
-	return put_user(val, (unsigned int __user *)arg) ? -EFAULT : 0;
-}
-
-static unsigned int vidc_audio_set_format(int dev, unsigned int fmt)
-{
-	switch (fmt) {
-	default:
-		fmt = AFMT_S16_LE;
-	case AFMT_U8:
-	case AFMT_S8:
-	case AFMT_S16_LE:
-		vidc_audio_format = fmt;
-		vidc_update_filler(vidc_audio_format, vidc_audio_channels);
-	case AFMT_QUERY:
-		break;
-	}
-	return vidc_audio_format;
-}
-
-#define my_abs(i) ((i)<0 ? -(i) : (i))
-
-static int vidc_audio_set_speed(int dev, int rate)
-{
-	if (rate) {
-		unsigned int hwctrl, hwrate, hwrate_ext, rate_int, rate_ext;
-		unsigned int diff_int, diff_ext;
-		unsigned int newsize, new2size;
-
-		hwctrl = 0x00000003;
-
-		/* Using internal clock */
-		hwrate = (((VIDC_SOUND_CLOCK * 2) / rate) + 1) >> 1;
-		if (hwrate < 3)
-			hwrate = 3;
-		if (hwrate > 255)
-			hwrate = 255;
-
-		/* Using exernal clock */
-		hwrate_ext = (((VIDC_SOUND_CLOCK_EXT * 2) / rate) + 1) >> 1;
-		if (hwrate_ext < 3)
-			hwrate_ext = 3;
-		if (hwrate_ext > 255)
-			hwrate_ext = 255;
-
-		rate_int = VIDC_SOUND_CLOCK / hwrate;
-		rate_ext = VIDC_SOUND_CLOCK_EXT / hwrate_ext;
-
-		/* Chose between external and internal clock */
-		diff_int = my_abs(rate_ext-rate);
-		diff_ext = my_abs(rate_int-rate);
-		if (diff_ext < diff_int) {
-			/*printk("VIDC: external %d %d %d\n", rate, rate_ext, hwrate_ext);*/
-			hwrate=hwrate_ext;
-			hwctrl=0x00000002;
-			/* Allow roughly 0.4% tolerance */
-			if (diff_ext > (rate/256))
-				rate=rate_ext;
-		} else {
-			/*printk("VIDC: internal %d %d %d\n", rate, rate_int, hwrate);*/
-			hwctrl=0x00000003;
-			/* Allow roughly 0.4% tolerance */
-			if (diff_int > (rate/256))
-				rate=rate_int;
-		}
-
-		vidc_writel(0xb0000000 | (hwrate - 2));
-		vidc_writel(0xb1000000 | hwctrl);
-
-		newsize = (10000 / hwrate) & ~3;
-		if (newsize < 208)
-			newsize = 208;
-		if (newsize > 4096)
-			newsize = 4096;
-		for (new2size = 128; new2size < newsize; new2size <<= 1);
-		if (new2size - newsize > newsize - (new2size >> 1))
-			new2size >>= 1;
-		if (new2size > 4096) {
-			printk(KERN_ERR "VIDC: error: dma buffer (%d) %d > 4K\n",
-				newsize, new2size);
-			new2size = 4096;
-		}
-		/*printk("VIDC: dma size %d\n", new2size);*/
-		dma_bufsize = new2size;
-		vidc_audio_rate = rate;
-	}
-	return vidc_audio_rate;
-}
-
-static short vidc_audio_set_channels(int dev, short channels)
-{
-	switch (channels) {
-	default:
-		channels = 2;
-	case 1:
-	case 2:
-		vidc_audio_channels = channels;
-		vidc_update_filler(vidc_audio_format, vidc_audio_channels);
-	case 0:
-		break;
-	}
-	return vidc_audio_channels;
-}
-
-/*
- * Open the device
- */
-static int vidc_audio_open(int dev, int mode)
-{
-	/* This audio device does not have recording capability */
-	if (mode == OPEN_READ)
-		return -EPERM;
-
-	if (vidc_busy)
-		return -EBUSY;
-
-	vidc_busy = 1;
-	return 0;
-}
-
-/*
- * Close the device
- */
-static void vidc_audio_close(int dev)
-{
-	vidc_busy = 0;
-}
-
-/*
- * Output a block via DMA to sound device.
- *
- * We just set the DMA start and count; the DMA interrupt routine
- * will take care of formatting the samples (via the appropriate
- * vidc_filler routine), and flag via vidc_audio_dma_interrupt when
- * more data is required.
- */
-static void
-vidc_audio_output_block(int dev, unsigned long buf, int total_count, int one)
-{
-	struct dma_buffparms *dmap = audio_devs[dev]->dmap_out;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	dma_start = buf - (unsigned long)dmap->raw_buf_phys + (unsigned long)dmap->raw_buf;
-	dma_count = total_count;
-	local_irq_restore(flags);
-}
-
-static void
-vidc_audio_start_input(int dev, unsigned long buf, int count, int intrflag)
-{
-}
-
-static int vidc_audio_prepare_for_input(int dev, int bsize, int bcount)
-{
-	return -EINVAL;
-}
-
-static irqreturn_t vidc_audio_dma_interrupt(void)
-{
-	DMAbuf_outputintr(vidc_adev, 1);
-	return IRQ_HANDLED;
-}
-
-/*
- * Prepare for outputting samples.
- *
- * Each buffer that will be passed will be `bsize' bytes long,
- * with a total of `bcount' buffers.
- */
-static int vidc_audio_prepare_for_output(int dev, int bsize, int bcount)
-{
-	struct audio_operations *adev = audio_devs[dev];
-
-	dma_interrupt = NULL;
-	adev->dmap_out->flags |= DMA_NODMA;
-
-	return 0;
-}
-
-/*
- * Stop our current operation.
- */
-static void vidc_audio_reset(int dev)
-{
-	dma_interrupt = NULL;
-}
-
-static int vidc_audio_local_qlen(int dev)
-{
-	return /*dma_count !=*/ 0;
-}
-
-static void vidc_audio_trigger(int dev, int enable_bits)
-{
-	struct audio_operations *adev = audio_devs[dev];
-
-	if (enable_bits & PCM_ENABLE_OUTPUT) {
-		if (!(adev->dmap_out->flags & DMA_ACTIVE)) {
-			unsigned long flags;
-
-			local_irq_save(flags);
-
-			/* prevent recusion */
-			adev->dmap_out->flags |= DMA_ACTIVE;
-
-			dma_interrupt = vidc_audio_dma_interrupt;
-			vidc_sound_dma_irq(0, NULL);
-			iomd_writeb(DMA_CR_E | 0x10, IOMD_SD0CR);
-
-			local_irq_restore(flags);
-		}
-	}
-}
-
-static struct audio_driver vidc_audio_driver =
-{
-	.owner			= THIS_MODULE,
-	.open			= vidc_audio_open,
-	.close			= vidc_audio_close,
-	.output_block		= vidc_audio_output_block,
-	.start_input		= vidc_audio_start_input,
-	.prepare_for_input	= vidc_audio_prepare_for_input,
-	.prepare_for_output	= vidc_audio_prepare_for_output,
-	.halt_io		= vidc_audio_reset,
-	.local_qlen		= vidc_audio_local_qlen,
-	.trigger		= vidc_audio_trigger,
-	.set_speed		= vidc_audio_set_speed,
-	.set_bits		= vidc_audio_set_format,
-	.set_channels		= vidc_audio_set_channels
-};
-
-static struct mixer_operations vidc_mixer_operations = {
-	.owner		= THIS_MODULE,
-	.id		= "VIDC",
-	.name		= "VIDCsound",
-	.ioctl		= vidc_mixer_ioctl
-};
-
-void vidc_update_filler(int format, int channels)
-{
-#define TYPE(fmt,ch) (((fmt)<<2) | ((ch)&3))
-
-	switch (TYPE(format, channels)) {
-	default:
-	case TYPE(AFMT_U8, 1):
-		vidc_filler = vidc_fill_1x8_u;
-		break;
-
-	case TYPE(AFMT_U8, 2):
-		vidc_filler = vidc_fill_2x8_u;
-		break;
-
-	case TYPE(AFMT_S8, 1):
-		vidc_filler = vidc_fill_1x8_s;
-		break;
-
-	case TYPE(AFMT_S8, 2):
-		vidc_filler = vidc_fill_2x8_s;
-		break;
-
-	case TYPE(AFMT_S16_LE, 1):
-		vidc_filler = vidc_fill_1x16_s;
-		break;
-
-	case TYPE(AFMT_S16_LE, 2):
-		vidc_filler = vidc_fill_2x16_s;
-		break;
-	}
-}
-
-static void __init attach_vidc(struct address_info *hw_config)
-{
-	char name[32];
-	int i, adev;
-
-	sprintf(name, "VIDC %d-bit sound", hw_config->card_subtype);
-	conf_printf(name, hw_config);
-	memset(dma_buf, 0, sizeof(dma_buf));
-
-	adev = sound_install_audiodrv(AUDIO_DRIVER_VERSION, name,
-			&vidc_audio_driver, sizeof(vidc_audio_driver),
-			DMA_AUTOMODE, AFMT_U8 | AFMT_S8 | AFMT_S16_LE,
-			NULL, hw_config->dma, hw_config->dma2);
-
-	if (adev < 0)
-		goto audio_failed;
-
-	/*
-	 * 1024 bytes => 64 buffers
-	 */
-	audio_devs[adev]->min_fragment = 10;
-	audio_devs[adev]->mixer_dev = num_mixers;
-
-	audio_devs[adev]->mixer_dev =
-		sound_install_mixer(MIXER_DRIVER_VERSION,
-				name, &vidc_mixer_operations,
-				sizeof(vidc_mixer_operations), NULL);
-
-	if (audio_devs[adev]->mixer_dev < 0)
-		goto mixer_failed;
-
-	for (i = 0; i < 2; i++) {
-		dma_buf[i] = get_zeroed_page(GFP_KERNEL);
-		if (!dma_buf[i]) {
-			printk(KERN_ERR "%s: can't allocate required buffers\n",
-				name);
-			goto mem_failed;
-		}
-		dma_pbuf[i] = virt_to_phys((void *)dma_buf[i]);
-	}
-
-	if (sound_alloc_dma(hw_config->dma, hw_config->name)) {
-		printk(KERN_ERR "%s: DMA %d is in  use\n", name, hw_config->dma);
-		goto dma_failed;
-	}
-
-	if (request_irq(hw_config->irq, vidc_sound_dma_irq, 0,
-			hw_config->name, &dma_start)) {
-		printk(KERN_ERR "%s: IRQ %d is in use\n", name, hw_config->irq);
-		goto irq_failed;
-	}
-	vidc_adev = adev;
-	vidc_mixer_set(SOUND_MIXER_VOLUME, (85 | 85 << 8));
-
-	return;
-
-irq_failed:
-	sound_free_dma(hw_config->dma);
-dma_failed:
-mem_failed:
-	for (i = 0; i < 2; i++)
-		free_page(dma_buf[i]);
-	sound_unload_mixerdev(audio_devs[adev]->mixer_dev);
-mixer_failed:
-	sound_unload_audiodev(adev);
-audio_failed:
-	return;
-}
-
-static int __init probe_vidc(struct address_info *hw_config)
-{
-	hw_config->irq		= IRQ_DMAS0;
-	hw_config->dma		= DMA_VIRTUAL_SOUND;
-	hw_config->dma2		= -1;
-	hw_config->card_subtype	= 16;
-	hw_config->name		= "VIDC20";
-	return 1;
-}
-
-static void __exit unload_vidc(struct address_info *hw_config)
-{
-	int i, adev = vidc_adev;
-
-	vidc_adev = -1;
-
-	free_irq(hw_config->irq, &dma_start);
-	sound_free_dma(hw_config->dma);
-
-	if (adev >= 0) {
-		sound_unload_mixerdev(audio_devs[adev]->mixer_dev);
-		sound_unload_audiodev(adev);
-		for (i = 0; i < 2; i++)
-			free_page(dma_buf[i]);
-	}
-}
-
-static struct address_info cfg;
-
-static int __init init_vidc(void)
-{
-	if (probe_vidc(&cfg) == 0)
-		return -ENODEV;
-
-	attach_vidc(&cfg);
-
-	return 0;
-}
-
-static void __exit cleanup_vidc(void)
-{
-	unload_vidc(&cfg);
-}
-
-module_init(init_vidc);
-module_exit(cleanup_vidc);
-
-MODULE_AUTHOR("Russell King");
-MODULE_DESCRIPTION("VIDC20 audio driver");
-MODULE_LICENSE("GPL");