[mirror_ubuntu-jammy-kernel.git] / drivers / input / serio / sa1111ps2.c

/*
 *  linux/drivers/input/serio/sa1111ps2.c
 *
 *  Copyright (C) 2002 Russell King
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License.
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/spinlock.h>

#include <asm/io.h>

#include <asm/hardware/sa1111.h>

#define PS2CR		0x0000
#define PS2STAT		0x0004
#define PS2DATA		0x0008
#define PS2CLKDIV	0x000c
#define PS2PRECNT	0x0010

#define PS2CR_ENA	0x08
#define PS2CR_FKD	0x02
#define PS2CR_FKC	0x01

#define PS2STAT_STP	0x0100
#define PS2STAT_TXE	0x0080
#define PS2STAT_TXB	0x0040
#define PS2STAT_RXF	0x0020
#define PS2STAT_RXB	0x0010
#define PS2STAT_ENA	0x0008
#define PS2STAT_RXP	0x0004
#define PS2STAT_KBD	0x0002
#define PS2STAT_KBC	0x0001

struct ps2if {
	struct serio		*io;
	struct sa1111_dev	*dev;
	void __iomem		*base;
	unsigned int		open;
	spinlock_t		lock;
	unsigned int		head;
	unsigned int		tail;
	unsigned char		buf[4];
};

/*
 * Read all bytes waiting in the PS2 port.  There should be
 * at the most one, but we loop for safety.  If there was a
 * framing error, we have to manually clear the status.
 */
static irqreturn_t ps2_rxint(int irq, void *dev_id)
{
	struct ps2if *ps2if = dev_id;
	unsigned int scancode, flag, status;

	status = sa1111_readl(ps2if->base + PS2STAT);
	while (status & PS2STAT_RXF) {
		if (status & PS2STAT_STP)
			sa1111_writel(PS2STAT_STP, ps2if->base + PS2STAT);

		flag = (status & PS2STAT_STP ? SERIO_FRAME : 0) |
		       (status & PS2STAT_RXP ? 0 : SERIO_PARITY);

		scancode = sa1111_readl(ps2if->base + PS2DATA) & 0xff;

		if (hweight8(scancode) & 1)
			flag ^= SERIO_PARITY;

		serio_interrupt(ps2if->io, scancode, flag);

		status = sa1111_readl(ps2if->base + PS2STAT);
        }

        return IRQ_HANDLED;
}

/*
 * Completion of ps2 write
 */
static irqreturn_t ps2_txint(int irq, void *dev_id)
{
	struct ps2if *ps2if = dev_id;
	unsigned int status;

	spin_lock(&ps2if->lock);
	status = sa1111_readl(ps2if->base + PS2STAT);
	if (ps2if->head == ps2if->tail) {
		disable_irq_nosync(irq);
		/* done */
	} else if (status & PS2STAT_TXE) {
		sa1111_writel(ps2if->buf[ps2if->tail], ps2if->base + PS2DATA);
		ps2if->tail = (ps2if->tail + 1) & (sizeof(ps2if->buf) - 1);
	}
	spin_unlock(&ps2if->lock);

	return IRQ_HANDLED;
}

/*
 * Write a byte to the PS2 port.  We have to wait for the
 * port to indicate that the transmitter is empty.
 */
static int ps2_write(struct serio *io, unsigned char val)
{
	struct ps2if *ps2if = io->port_data;
	unsigned long flags;
	unsigned int head;

	spin_lock_irqsave(&ps2if->lock, flags);

	/*
	 * If the TX register is empty, we can go straight out.
	 */
	if (sa1111_readl(ps2if->base + PS2STAT) & PS2STAT_TXE) {
		sa1111_writel(val, ps2if->base + PS2DATA);
	} else {
		if (ps2if->head == ps2if->tail)
			enable_irq(ps2if->dev->irq[1]);
		head = (ps2if->head + 1) & (sizeof(ps2if->buf) - 1);
		if (head != ps2if->tail) {
			ps2if->buf[ps2if->head] = val;
			ps2if->head = head;
		}
	}

	spin_unlock_irqrestore(&ps2if->lock, flags);
	return 0;
}

static int ps2_open(struct serio *io)
{
	struct ps2if *ps2if = io->port_data;
	int ret;

	ret = sa1111_enable_device(ps2if->dev);
	if (ret)
		return ret;

	ret = request_irq(ps2if->dev->irq[0], ps2_rxint, 0,
			  SA1111_DRIVER_NAME(ps2if->dev), ps2if);
	if (ret) {
		printk(KERN_ERR "sa1111ps2: could not allocate IRQ%d: %d\n",
			ps2if->dev->irq[0], ret);
		sa1111_disable_device(ps2if->dev);
		return ret;
	}

	ret = request_irq(ps2if->dev->irq[1], ps2_txint, 0,
			  SA1111_DRIVER_NAME(ps2if->dev), ps2if);
	if (ret) {
		printk(KERN_ERR "sa1111ps2: could not allocate IRQ%d: %d\n",
			ps2if->dev->irq[1], ret);
		free_irq(ps2if->dev->irq[0], ps2if);
		sa1111_disable_device(ps2if->dev);
		return ret;
	}

	ps2if->open = 1;

	enable_irq_wake(ps2if->dev->irq[0]);

	sa1111_writel(PS2CR_ENA, ps2if->base + PS2CR);
	return 0;
}

static void ps2_close(struct serio *io)
{
	struct ps2if *ps2if = io->port_data;

	sa1111_writel(0, ps2if->base + PS2CR);

	disable_irq_wake(ps2if->dev->irq[0]);

	ps2if->open = 0;

	free_irq(ps2if->dev->irq[1], ps2if);
	free_irq(ps2if->dev->irq[0], ps2if);

	sa1111_disable_device(ps2if->dev);
}

/*
 * Clear the input buffer.
 */
static void ps2_clear_input(struct ps2if *ps2if)
{
	int maxread = 100;

	while (maxread--) {
		if ((sa1111_readl(ps2if->base + PS2DATA) & 0xff) == 0xff)
			break;
	}
}

static unsigned int ps2_test_one(struct ps2if *ps2if,
					   unsigned int mask)
{
	unsigned int val;

	sa1111_writel(PS2CR_ENA | mask, ps2if->base + PS2CR);

	udelay(2);

	val = sa1111_readl(ps2if->base + PS2STAT);
	return val & (PS2STAT_KBC | PS2STAT_KBD);
}

/*
 * Test the keyboard interface.  We basically check to make sure that
 * we can drive each line to the keyboard independently of each other.
 */
static int ps2_test(struct ps2if *ps2if)
{
	unsigned int stat;
	int ret = 0;

	stat = ps2_test_one(ps2if, PS2CR_FKC);
	if (stat != PS2STAT_KBD) {
		printk("PS/2 interface test failed[1]: %02x\n", stat);
		ret = -ENODEV;
	}

	stat = ps2_test_one(ps2if, 0);
	if (stat != (PS2STAT_KBC | PS2STAT_KBD)) {
		printk("PS/2 interface test failed[2]: %02x\n", stat);
		ret = -ENODEV;
	}

	stat = ps2_test_one(ps2if, PS2CR_FKD);
	if (stat != PS2STAT_KBC) {
		printk("PS/2 interface test failed[3]: %02x\n", stat);
		ret = -ENODEV;
	}

	sa1111_writel(0, ps2if->base + PS2CR);

	return ret;
}

/*
 * Add one device to this driver.
 */
static int ps2_probe(struct sa1111_dev *dev)
{
	struct ps2if *ps2if;
	struct serio *serio;
	int ret;

	ps2if = kzalloc(sizeof(struct ps2if), GFP_KERNEL);
	serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
	if (!ps2if || !serio) {
		ret = -ENOMEM;
		goto free;
	}


	serio->id.type		= SERIO_8042;
	serio->write		= ps2_write;
	serio->open		= ps2_open;
	serio->close		= ps2_close;
	strlcpy(serio->name, dev_name(&dev->dev), sizeof(serio->name));
	strlcpy(serio->phys, dev_name(&dev->dev), sizeof(serio->phys));
	serio->port_data	= ps2if;
	serio->dev.parent	= &dev->dev;
	ps2if->io		= serio;
	ps2if->dev		= dev;
	sa1111_set_drvdata(dev, ps2if);

	spin_lock_init(&ps2if->lock);

	/*
	 * Request the physical region for this PS2 port.
	 */
	if (!request_mem_region(dev->res.start,
				dev->res.end - dev->res.start + 1,
				SA1111_DRIVER_NAME(dev))) {
		ret = -EBUSY;
		goto free;
	}

	/*
	 * Our parent device has already mapped the region.
	 */
	ps2if->base = dev->mapbase;

	sa1111_enable_device(ps2if->dev);

	/* Incoming clock is 8MHz */
	sa1111_writel(0, ps2if->base + PS2CLKDIV);
	sa1111_writel(127, ps2if->base + PS2PRECNT);

	/*
	 * Flush any pending input.
	 */
	ps2_clear_input(ps2if);

	/*
	 * Test the keyboard interface.
	 */
	ret = ps2_test(ps2if);
	if (ret)
		goto out;

	/*
	 * Flush any pending input.
	 */
	ps2_clear_input(ps2if);

	sa1111_disable_device(ps2if->dev);
	serio_register_port(ps2if->io);
	return 0;

 out:
	sa1111_disable_device(ps2if->dev);
	release_mem_region(dev->res.start, resource_size(&dev->res));
 free:
	sa1111_set_drvdata(dev, NULL);
	kfree(ps2if);
	kfree(serio);
	return ret;
}

/*
 * Remove one device from this driver.
 */
static int __devexit ps2_remove(struct sa1111_dev *dev)
{
	struct ps2if *ps2if = sa1111_get_drvdata(dev);

	serio_unregister_port(ps2if->io);
	release_mem_region(dev->res.start, resource_size(&dev->res));
	sa1111_set_drvdata(dev, NULL);

	kfree(ps2if);

	return 0;
}

/*
 * Our device driver structure
 */
static struct sa1111_driver ps2_driver = {
	.drv = {
		.name	= "sa1111-ps2",
		.owner	= THIS_MODULE,
	},
	.devid		= SA1111_DEVID_PS2,
	.probe		= ps2_probe,
	.remove		= ps2_remove,
};

static int __init ps2_init(void)
{
	return sa1111_driver_register(&ps2_driver);
}

static void __exit ps2_exit(void)
{
	sa1111_driver_unregister(&ps2_driver);
}

module_init(ps2_init);
module_exit(ps2_exit);

MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
MODULE_DESCRIPTION("SA1111 PS2 controller driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/drivers/input/serio/sa1111ps2.c
	3	*
	4	* Copyright (C) 2002 Russell King
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License.
	9	*/
	10	#include <linux/module.h>
	11	#include <linux/init.h>
	12	#include <linux/input.h>
	13	#include <linux/serio.h>
	14	#include <linux/errno.h>
	15	#include <linux/interrupt.h>
	16	#include <linux/ioport.h>
	17	#include <linux/delay.h>
	18	#include <linux/device.h>
	19	#include <linux/slab.h>
	20	#include <linux/spinlock.h>
	21
	22	#include <asm/io.h>
1da177e4 LT	23
	24	#include <asm/hardware/sa1111.h>
	25
4f8d9cae RK	26	#define PS2CR 0x0000
	27	#define PS2STAT 0x0004
	28	#define PS2DATA 0x0008
	29	#define PS2CLKDIV 0x000c
	30	#define PS2PRECNT 0x0010
	31
	32	#define PS2CR_ENA 0x08
	33	#define PS2CR_FKD 0x02
	34	#define PS2CR_FKC 0x01
	35
	36	#define PS2STAT_STP 0x0100
	37	#define PS2STAT_TXE 0x0080
	38	#define PS2STAT_TXB 0x0040
	39	#define PS2STAT_RXF 0x0020
	40	#define PS2STAT_RXB 0x0010
	41	#define PS2STAT_ENA 0x0008
	42	#define PS2STAT_RXP 0x0004
	43	#define PS2STAT_KBD 0x0002
	44	#define PS2STAT_KBC 0x0001
	45
1da177e4 LT	46	struct ps2if {
	47	struct serio *io;
	48	struct sa1111_dev *dev;
	49	void __iomem *base;
	50	unsigned int open;
	51	spinlock_t lock;
	52	unsigned int head;
	53	unsigned int tail;
	54	unsigned char buf[4];
	55	};
	56
	57	/*
	58	* Read all bytes waiting in the PS2 port. There should be
	59	* at the most one, but we loop for safety. If there was a
	60	* framing error, we have to manually clear the status.
	61	*/
7d12e780	62	static irqreturn_t ps2_rxint(int irq, void *dev_id)
1da177e4 LT	63	{
	64	struct ps2if *ps2if = dev_id;
	65	unsigned int scancode, flag, status;
	66
4f8d9cae	67	status = sa1111_readl(ps2if->base + PS2STAT);
1da177e4 LT	68	while (status & PS2STAT_RXF) {
1da177e4 LT	69	if (status & PS2STAT_STP)
4f8d9cae	70	sa1111_writel(PS2STAT_STP, ps2if->base + PS2STAT);
1da177e4 LT	71
	72	flag = (status & PS2STAT_STP ? SERIO_FRAME : 0) \|
	73	(status & PS2STAT_RXP ? 0 : SERIO_PARITY);
	74
4f8d9cae	75	scancode = sa1111_readl(ps2if->base + PS2DATA) & 0xff;
1da177e4 LT	76
	77	if (hweight8(scancode) & 1)
	78	flag ^= SERIO_PARITY;
	79
7d12e780	80	serio_interrupt(ps2if->io, scancode, flag);
1da177e4	81
4f8d9cae	82	status = sa1111_readl(ps2if->base + PS2STAT);
1da177e4 LT	83	}
	84
	85	return IRQ_HANDLED;
	86	}
	87
	88	/*
	89	* Completion of ps2 write
	90	*/
7d12e780	91	static irqreturn_t ps2_txint(int irq, void *dev_id)
1da177e4 LT	92	{
	93	struct ps2if *ps2if = dev_id;
	94	unsigned int status;
	95
	96	spin_lock(&ps2if->lock);
4f8d9cae	97	status = sa1111_readl(ps2if->base + PS2STAT);
1da177e4	98	if (ps2if->head == ps2if->tail) {
e4bd3e59	99	disable_irq_nosync(irq);
1da177e4 LT	100	/* done */
1da177e4 LT	101	} else if (status & PS2STAT_TXE) {
4f8d9cae	102	sa1111_writel(ps2if->buf[ps2if->tail], ps2if->base + PS2DATA);
1da177e4 LT	103	ps2if->tail = (ps2if->tail + 1) & (sizeof(ps2if->buf) - 1);
	104	}
	105	spin_unlock(&ps2if->lock);
	106
	107	return IRQ_HANDLED;
	108	}
	109
	110	/*
	111	* Write a byte to the PS2 port. We have to wait for the
	112	* port to indicate that the transmitter is empty.
	113	*/
	114	static int ps2_write(struct serio *io, unsigned char val)
	115	{
	116	struct ps2if *ps2if = io->port_data;
	117	unsigned long flags;
	118	unsigned int head;
	119
	120	spin_lock_irqsave(&ps2if->lock, flags);
	121
	122	/*
	123	* If the TX register is empty, we can go straight out.
	124	*/
4f8d9cae RK	125	if (sa1111_readl(ps2if->base + PS2STAT) & PS2STAT_TXE) {
4f8d9cae RK	126	sa1111_writel(val, ps2if->base + PS2DATA);
1da177e4 LT	127	} else {
	128	if (ps2if->head == ps2if->tail)
	129	enable_irq(ps2if->dev->irq[1]);
	130	head = (ps2if->head + 1) & (sizeof(ps2if->buf) - 1);
	131	if (head != ps2if->tail) {
	132	ps2if->buf[ps2if->head] = val;
	133	ps2if->head = head;
	134	}
	135	}
	136
	137	spin_unlock_irqrestore(&ps2if->lock, flags);
	138	return 0;
	139	}
	140
	141	static int ps2_open(struct serio *io)
	142	{
	143	struct ps2if *ps2if = io->port_data;
	144	int ret;
	145
ae99ddbc RK	146	ret = sa1111_enable_device(ps2if->dev);
	147	if (ret)
	148	return ret;
1da177e4 LT	149
	150	ret = request_irq(ps2if->dev->irq[0], ps2_rxint, 0,
	151	SA1111_DRIVER_NAME(ps2if->dev), ps2if);
	152	if (ret) {
	153	printk(KERN_ERR "sa1111ps2: could not allocate IRQ%d: %d\n",
	154	ps2if->dev->irq[0], ret);
ae99ddbc	155	sa1111_disable_device(ps2if->dev);
1da177e4 LT	156	return ret;
	157	}
	158
	159	ret = request_irq(ps2if->dev->irq[1], ps2_txint, 0,
	160	SA1111_DRIVER_NAME(ps2if->dev), ps2if);
	161	if (ret) {
	162	printk(KERN_ERR "sa1111ps2: could not allocate IRQ%d: %d\n",
	163	ps2if->dev->irq[1], ret);
	164	free_irq(ps2if->dev->irq[0], ps2if);
ae99ddbc	165	sa1111_disable_device(ps2if->dev);
1da177e4 LT	166	return ret;
	167	}
	168
	169	ps2if->open = 1;
	170
	171	enable_irq_wake(ps2if->dev->irq[0]);
	172
4f8d9cae	173	sa1111_writel(PS2CR_ENA, ps2if->base + PS2CR);
1da177e4 LT	174	return 0;
	175	}
	176
	177	static void ps2_close(struct serio *io)
	178	{
	179	struct ps2if *ps2if = io->port_data;
	180
4f8d9cae	181	sa1111_writel(0, ps2if->base + PS2CR);
1da177e4 LT	182
	183	disable_irq_wake(ps2if->dev->irq[0]);
	184
	185	ps2if->open = 0;
	186
	187	free_irq(ps2if->dev->irq[1], ps2if);
	188	free_irq(ps2if->dev->irq[0], ps2if);
	189
	190	sa1111_disable_device(ps2if->dev);
	191	}
	192
	193	/*
	194	* Clear the input buffer.
	195	*/
5298cc4c	196	static void ps2_clear_input(struct ps2if *ps2if)
1da177e4 LT	197	{
	198	int maxread = 100;
	199
	200	while (maxread--) {
4f8d9cae	201	if ((sa1111_readl(ps2if->base + PS2DATA) & 0xff) == 0xff)
1da177e4 LT	202	break;
	203	}
	204	}
	205
5298cc4c	206	static unsigned int ps2_test_one(struct ps2if *ps2if,
010c33cc	207	unsigned int mask)
1da177e4 LT	208	{
	209	unsigned int val;
	210
4f8d9cae	211	sa1111_writel(PS2CR_ENA \| mask, ps2if->base + PS2CR);
1da177e4 LT	212
	213	udelay(2);
	214
4f8d9cae	215	val = sa1111_readl(ps2if->base + PS2STAT);
1da177e4 LT	216	return val & (PS2STAT_KBC \| PS2STAT_KBD);
	217	}
	218
	219	/*
	220	* Test the keyboard interface. We basically check to make sure that
	221	* we can drive each line to the keyboard independently of each other.
	222	*/
5298cc4c	223	static int ps2_test(struct ps2if *ps2if)
1da177e4 LT	224	{
	225	unsigned int stat;
	226	int ret = 0;
	227
	228	stat = ps2_test_one(ps2if, PS2CR_FKC);
	229	if (stat != PS2STAT_KBD) {
	230	printk("PS/2 interface test failed[1]: %02x\n", stat);
	231	ret = -ENODEV;
	232	}
	233
	234	stat = ps2_test_one(ps2if, 0);
	235	if (stat != (PS2STAT_KBC \| PS2STAT_KBD)) {
	236	printk("PS/2 interface test failed[2]: %02x\n", stat);
	237	ret = -ENODEV;
	238	}
	239
	240	stat = ps2_test_one(ps2if, PS2CR_FKD);
	241	if (stat != PS2STAT_KBC) {
	242	printk("PS/2 interface test failed[3]: %02x\n", stat);
	243	ret = -ENODEV;
	244	}
	245
4f8d9cae	246	sa1111_writel(0, ps2if->base + PS2CR);
1da177e4 LT	247
	248	return ret;
	249	}
	250
	251	/*
	252	* Add one device to this driver.
	253	*/
5298cc4c	254	static int ps2_probe(struct sa1111_dev *dev)
1da177e4 LT	255	{
	256	struct ps2if *ps2if;
	257	struct serio *serio;
	258	int ret;
	259
dd00cc48 YP	260	ps2if = kzalloc(sizeof(struct ps2if), GFP_KERNEL);
dd00cc48 YP	261	serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
1da177e4 LT	262	if (!ps2if \|\| !serio) {
	263	ret = -ENOMEM;
	264	goto free;
	265	}
	266
1da177e4 LT	267
	268	serio->id.type = SERIO_8042;
	269	serio->write = ps2_write;
	270	serio->open = ps2_open;
	271	serio->close = ps2_close;
4e8718a1 KS	272	strlcpy(serio->name, dev_name(&dev->dev), sizeof(serio->name));
4e8718a1 KS	273	strlcpy(serio->phys, dev_name(&dev->dev), sizeof(serio->phys));
1da177e4 LT	274	serio->port_data = ps2if;
	275	serio->dev.parent = &dev->dev;
	276	ps2if->io = serio;
	277	ps2if->dev = dev;
	278	sa1111_set_drvdata(dev, ps2if);
	279
	280	spin_lock_init(&ps2if->lock);
	281
	282	/*
	283	* Request the physical region for this PS2 port.
	284	*/
	285	if (!request_mem_region(dev->res.start,
	286	dev->res.end - dev->res.start + 1,
	287	SA1111_DRIVER_NAME(dev))) {
	288	ret = -EBUSY;
	289	goto free;
	290	}
	291
	292	/*
	293	* Our parent device has already mapped the region.
	294	*/
	295	ps2if->base = dev->mapbase;
	296
	297	sa1111_enable_device(ps2if->dev);
	298
	299	/* Incoming clock is 8MHz */
4f8d9cae RK	300	sa1111_writel(0, ps2if->base + PS2CLKDIV);
4f8d9cae RK	301	sa1111_writel(127, ps2if->base + PS2PRECNT);
1da177e4 LT	302
	303	/*
	304	* Flush any pending input.
	305	*/
	306	ps2_clear_input(ps2if);
	307
	308	/*
	309	* Test the keyboard interface.
	310	*/
	311	ret = ps2_test(ps2if);
	312	if (ret)
	313	goto out;
	314
	315	/*
	316	* Flush any pending input.
	317	*/
	318	ps2_clear_input(ps2if);
	319
	320	sa1111_disable_device(ps2if->dev);
	321	serio_register_port(ps2if->io);
	322	return 0;
	323
	324	out:
	325	sa1111_disable_device(ps2if->dev);
28f65c11	326	release_mem_region(dev->res.start, resource_size(&dev->res));
1da177e4 LT	327	free:
	328	sa1111_set_drvdata(dev, NULL);
	329	kfree(ps2if);
	330	kfree(serio);
	331	return ret;
	332	}
	333
	334	/*
	335	* Remove one device from this driver.
	336	*/
010c33cc	337	static int __devexit ps2_remove(struct sa1111_dev *dev)
1da177e4 LT	338	{
	339	struct ps2if *ps2if = sa1111_get_drvdata(dev);
	340
	341	serio_unregister_port(ps2if->io);
28f65c11	342	release_mem_region(dev->res.start, resource_size(&dev->res));
1da177e4 LT	343	sa1111_set_drvdata(dev, NULL);
	344
	345	kfree(ps2if);
	346
	347	return 0;
	348	}
	349
	350	/*
	351	* Our device driver structure
	352	*/
	353	static struct sa1111_driver ps2_driver = {
	354	.drv = {
	355	.name = "sa1111-ps2",
1ebcd765	356	.owner = THIS_MODULE,
1da177e4 LT	357	},
	358	.devid = SA1111_DEVID_PS2,
	359	.probe = ps2_probe,
1cb0aa88	360	.remove = ps2_remove,
1da177e4 LT	361	};
	362
	363	static int __init ps2_init(void)
	364	{
	365	return sa1111_driver_register(&ps2_driver);
	366	}
	367
	368	static void __exit ps2_exit(void)
	369	{
	370	sa1111_driver_unregister(&ps2_driver);
	371	}
	372
	373	module_init(ps2_init);
	374	module_exit(ps2_exit);
	375
	376	MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
	377	MODULE_DESCRIPTION("SA1111 PS2 controller driver");
	378	MODULE_LICENSE("GPL");