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, 477 deletions

diff --git a/sound/oss/uart401.c b/sound/oss/uart401.c
deleted file mode 100644
index 83dcc85b8688..000000000000
--- a/sound/oss/uart401.c
+++ /dev/null
@@ -1,477 +0,0 @@
-/*
- * sound/oss/uart401.c
- *
- * MPU-401 UART driver (formerly uart401_midi.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.
- *
- * Changes:
- *	Alan Cox		Reformatted, removed sound_mem usage, use normal Linux
- *				interrupt allocation. Protect against bogus unload
- *				Fixed to allow IRQ > 15
- *	Christoph Hellwig	Adapted to module_init/module_exit
- *	Arnaldo C. de Melo	got rid of check_region
- *
- * Status:
- *		Untested
- */
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include "sound_config.h"
-
-#include "mpu401.h"
-
-struct uart401_devc
-{
-	int             base;
-	int             irq;
-	int            *osp;
-	void            (*midi_input_intr) (int dev, unsigned char data);
-	int             opened, disabled;
-	volatile unsigned char input_byte;
-	int             my_dev;
-	int             share_irq;
-	spinlock_t	lock;
-};
-
-#define	DATAPORT   (devc->base)
-#define	COMDPORT   (devc->base+1)
-#define	STATPORT   (devc->base+1)
-
-static int uart401_status(struct uart401_devc *devc)
-{
-	return inb(STATPORT);
-}
-
-#define input_avail(devc) (!(uart401_status(devc)&INPUT_AVAIL))
-#define output_ready(devc)	(!(uart401_status(devc)&OUTPUT_READY))
-
-static void uart401_cmd(struct uart401_devc *devc, unsigned char cmd)
-{
-	outb((cmd), COMDPORT);
-}
-
-static int uart401_read(struct uart401_devc *devc)
-{
-	return inb(DATAPORT);
-}
-
-static void uart401_write(struct uart401_devc *devc, unsigned char byte)
-{
-	outb((byte), DATAPORT);
-}
-
-#define	OUTPUT_READY	0x40
-#define	INPUT_AVAIL	0x80
-#define	MPU_ACK		0xFE
-#define	MPU_RESET	0xFF
-#define	UART_MODE_ON	0x3F
-
-static int      reset_uart401(struct uart401_devc *devc);
-static void     enter_uart_mode(struct uart401_devc *devc);
-
-static void uart401_input_loop(struct uart401_devc *devc)
-{
-	int work_limit=30000;
-	
-	while (input_avail(devc) && --work_limit)
-	{
-		unsigned char   c = uart401_read(devc);
-
-		if (c == MPU_ACK)
-			devc->input_byte = c;
-		else if (devc->opened & OPEN_READ && devc->midi_input_intr)
-			devc->midi_input_intr(devc->my_dev, c);
-	}
-	if(work_limit==0)
-		printk(KERN_WARNING "Too much work in interrupt on uart401 (0x%X). UART jabbering ??\n", devc->base);
-}
-
-irqreturn_t uart401intr(int irq, void *dev_id)
-{
-	struct uart401_devc *devc = dev_id;
-
-	if (devc == NULL)
-	{
-		printk(KERN_ERR "uart401: bad devc\n");
-		return IRQ_NONE;
-	}
-
-	if (input_avail(devc))
-		uart401_input_loop(devc);
-	return IRQ_HANDLED;
-}
-
-static int
-uart401_open(int dev, int mode,
-	     void            (*input) (int dev, unsigned char data),
-	     void            (*output) (int dev)
-)
-{
-	struct uart401_devc *devc = (struct uart401_devc *)
-				    midi_devs[dev]->devc;
-
-	if (devc->opened)
-		return -EBUSY;
-
-	/* Flush the UART */
-	
-	while (input_avail(devc))
-		uart401_read(devc);
-
-	devc->midi_input_intr = input;
-	devc->opened = mode;
-	enter_uart_mode(devc);
-	devc->disabled = 0;
-
-	return 0;
-}
-
-static void uart401_close(int dev)
-{
-	struct uart401_devc *devc = (struct uart401_devc *)
-				    midi_devs[dev]->devc;
-
-	reset_uart401(devc);
-	devc->opened = 0;
-}
-
-static int uart401_out(int dev, unsigned char midi_byte)
-{
-	int timeout;
-	unsigned long flags;
-	struct uart401_devc *devc = (struct uart401_devc *)
-				    midi_devs[dev]->devc;
-
-	if (devc->disabled)
-		return 1;
-	/*
-	 * Test for input since pending input seems to block the output.
-	 */
-
-	spin_lock_irqsave(&devc->lock,flags);	
-	if (input_avail(devc))
-		uart401_input_loop(devc);
-
-	spin_unlock_irqrestore(&devc->lock,flags);
-
-	/*
-	 * Sometimes it takes about 13000 loops before the output becomes ready
-	 * (After reset). Normally it takes just about 10 loops.
-	 */
-
-	for (timeout = 30000; timeout > 0 && !output_ready(devc); timeout--);
-
-	if (!output_ready(devc))
-	{
-		  printk(KERN_WARNING "uart401: Timeout - Device not responding\n");
-		  devc->disabled = 1;
-		  reset_uart401(devc);
-		  enter_uart_mode(devc);
-		  return 1;
-	}
-	uart401_write(devc, midi_byte);
-	return 1;
-}
-
-static inline int uart401_start_read(int dev)
-{
-	return 0;
-}
-
-static inline int uart401_end_read(int dev)
-{
-	return 0;
-}
-
-static inline void uart401_kick(int dev)
-{
-}
-
-static inline int uart401_buffer_status(int dev)
-{
-	return 0;
-}
-
-#define MIDI_SYNTH_NAME	"MPU-401 UART"
-#define MIDI_SYNTH_CAPS	SYNTH_CAP_INPUT
-#include "midi_synth.h"
-
-static const struct midi_operations uart401_operations =
-{
-	.owner		= THIS_MODULE,
-	.info		= {"MPU-401 (UART) MIDI", 0, 0, SNDCARD_MPU401},
-	.converter	= &std_midi_synth,
-	.in_info	= {0},
-	.open		= uart401_open,
-	.close		= uart401_close,
-	.outputc	= uart401_out,
-	.start_read	= uart401_start_read,
-	.end_read	= uart401_end_read,
-	.kick		= uart401_kick,
-	.buffer_status	= uart401_buffer_status,
-};
-
-static void enter_uart_mode(struct uart401_devc *devc)
-{
-	int ok, timeout;
-	unsigned long flags;
-
-	spin_lock_irqsave(&devc->lock,flags);	
-	for (timeout = 30000; timeout > 0 && !output_ready(devc); timeout--);
-
-	devc->input_byte = 0;
-	uart401_cmd(devc, UART_MODE_ON);
-
-	ok = 0;
-	for (timeout = 50000; timeout > 0 && !ok; timeout--)
-		if (devc->input_byte == MPU_ACK)
-			ok = 1;
-		else if (input_avail(devc))
-			if (uart401_read(devc) == MPU_ACK)
-				ok = 1;
-
-	spin_unlock_irqrestore(&devc->lock,flags);
-}
-
-static int reset_uart401(struct uart401_devc *devc)
-{
-	int ok, timeout, n;
-
-	/*
-	 * Send the RESET command. Try again if no success at the first time.
-	 */
-
-	ok = 0;
-
-	for (n = 0; n < 2 && !ok; n++)
-	{
-		for (timeout = 30000; timeout > 0 && !output_ready(devc); timeout--);
-		devc->input_byte = 0;
-		uart401_cmd(devc, MPU_RESET);
-
-		/*
-		 * Wait at least 25 msec. This method is not accurate so let's make the
-		 * loop bit longer. Cannot sleep since this is called during boot.
-		 */
-
-		for (timeout = 50000; timeout > 0 && !ok; timeout--)
-		{
-			if (devc->input_byte == MPU_ACK)	/* Interrupt */
-				ok = 1;
-			else if (input_avail(devc))
-			{
-				if (uart401_read(devc) == MPU_ACK)
-					ok = 1;
-			}
-		}
-	}
-
-	/* Flush input before enabling interrupts */
-	if (ok)
-		uart401_input_loop(devc);
-	else
-		DDB(printk("Reset UART401 failed - No hardware detected.\n"));
-
-	return ok;
-}
-
-int probe_uart401(struct address_info *hw_config, struct module *owner)
-{
-	struct uart401_devc *devc;
-	char *name = "MPU-401 (UART) MIDI";
-	int ok = 0;
-	unsigned long flags;
-
-	DDB(printk("Entered probe_uart401()\n"));
-
-	/* Default to "not found" */
-	hw_config->slots[4] = -1;
-
-	if (!request_region(hw_config->io_base, 4, "MPU-401 UART")) {
-		printk(KERN_INFO "uart401: could not request_region(%d, 4)\n", hw_config->io_base);
-		return 0;
-	}
-
-	devc = kmalloc(sizeof(struct uart401_devc), GFP_KERNEL);
-	if (!devc) {
-		printk(KERN_WARNING "uart401: Can't allocate memory\n");
-		goto cleanup_region;
-	}
-
-	devc->base = hw_config->io_base;
-	devc->irq = hw_config->irq;
-	devc->osp = hw_config->osp;
-	devc->midi_input_intr = NULL;
-	devc->opened = 0;
-	devc->input_byte = 0;
-	devc->my_dev = 0;
-	devc->share_irq = 0;
-	spin_lock_init(&devc->lock);
-
-	spin_lock_irqsave(&devc->lock,flags);	
-	ok = reset_uart401(devc);
-	spin_unlock_irqrestore(&devc->lock,flags);
-
-	if (!ok)
-		goto cleanup_devc;
-
-	if (hw_config->name)
-		name = hw_config->name;
-
-	if (devc->irq < 0) {
-		devc->share_irq = 1;
-		devc->irq *= -1;
-	} else
-		devc->share_irq = 0;
-
-	if (!devc->share_irq)
-		if (request_irq(devc->irq, uart401intr, 0, "MPU-401 UART", devc) < 0) {
-			printk(KERN_WARNING "uart401: Failed to allocate IRQ%d\n", devc->irq);
-			devc->share_irq = 1;
-		}
-	devc->my_dev = sound_alloc_mididev();
-	enter_uart_mode(devc);
-
-	if (devc->my_dev == -1) {
-		printk(KERN_INFO "uart401: Too many midi devices detected\n");
-		goto cleanup_irq;
-	}
-	conf_printf(name, hw_config);
-	midi_devs[devc->my_dev] = kmemdup(&uart401_operations,
-					  sizeof(struct midi_operations),
-					  GFP_KERNEL);
-	if (!midi_devs[devc->my_dev]) {
-		printk(KERN_ERR "uart401: Failed to allocate memory\n");
-		goto cleanup_unload_mididev;
-	}
-
-	if (owner)
-		midi_devs[devc->my_dev]->owner = owner;
-	
-	midi_devs[devc->my_dev]->devc = devc;
-	midi_devs[devc->my_dev]->converter = kmemdup(&std_midi_synth,
-						     sizeof(struct synth_operations),
-						     GFP_KERNEL);
-
-	if (!midi_devs[devc->my_dev]->converter) {
-		printk(KERN_WARNING "uart401: Failed to allocate memory\n");
-		goto cleanup_midi_devs;
-	}
-	strcpy(midi_devs[devc->my_dev]->info.name, name);
-	midi_devs[devc->my_dev]->converter->id = "UART401";
-	midi_devs[devc->my_dev]->converter->midi_dev = devc->my_dev;
-
-	if (owner)
-		midi_devs[devc->my_dev]->converter->owner = owner;
-
-	hw_config->slots[4] = devc->my_dev;
-	sequencer_init();
-	devc->opened = 0;
-	return 1;
-cleanup_midi_devs:
-	kfree(midi_devs[devc->my_dev]);
-cleanup_unload_mididev:
-	sound_unload_mididev(devc->my_dev);
-cleanup_irq:
-	if (!devc->share_irq)
-		free_irq(devc->irq, devc);
-cleanup_devc:
-	kfree(devc);
-cleanup_region:
-	release_region(hw_config->io_base, 4);
-	return 0;
-}
-
-void unload_uart401(struct address_info *hw_config)
-{
-	struct uart401_devc *devc;
-	int n=hw_config->slots[4];
-	
-	/* Not set up */
-	if(n==-1 || midi_devs[n]==NULL)
-		return;
-		
-	/* Not allocated (erm ??) */
-	
-	devc = midi_devs[hw_config->slots[4]]->devc;
-	if (devc == NULL)
-		return;
-
-	reset_uart401(devc);
-	release_region(hw_config->io_base, 4);
-
-	if (!devc->share_irq)
-		free_irq(devc->irq, devc);
-	kfree(midi_devs[devc->my_dev]->converter);
-	kfree(midi_devs[devc->my_dev]);
-	kfree(devc);
-
-	/* This kills midi_devs[x] */
-	sound_unload_mididev(hw_config->slots[4]);
-}
-
-EXPORT_SYMBOL(probe_uart401);
-EXPORT_SYMBOL(unload_uart401);
-EXPORT_SYMBOL(uart401intr);
-
-static struct address_info cfg_mpu;
-
-static int io = -1;
-static int irq = -1;
-
-module_param_hw(io, int, ioport, 0444);
-module_param_hw(irq, int, irq, 0444);
-
-
-static int __init init_uart401(void)
-{
-	cfg_mpu.irq = irq;
-	cfg_mpu.io_base = io;
-
-	/* Can be loaded either for module use or to provide functions
-	   to others */
-	if (cfg_mpu.io_base != -1 && cfg_mpu.irq != -1) {
-		printk(KERN_INFO "MPU-401 UART driver Copyright (C) Hannu Savolainen 1993-1997");
-		if (!probe_uart401(&cfg_mpu, THIS_MODULE))
-			return -ENODEV;
-	}
-
-	return 0;
-}
-
-static void __exit cleanup_uart401(void)
-{
-	if (cfg_mpu.io_base != -1 && cfg_mpu.irq != -1)
-		unload_uart401(&cfg_mpu);
-}
-
-module_init(init_uart401);
-module_exit(cleanup_uart401);
-
-#ifndef MODULE
-static int __init setup_uart401(char *str)
-{
-	/* io, irq */
-	int ints[3];
-	
-	str = get_options(str, ARRAY_SIZE(ints), ints);
-
-	io = ints[1];
-	irq = ints[2];
-	
-	return 1;
-}
-
-__setup("uart401=", setup_uart401);
-#endif
-MODULE_LICENSE("GPL");