[linux-2.6-block.git] / drivers / input / mouse / inport.c

/*
 *  Copyright (c) 1999-2001 Vojtech Pavlik
 *
 *  Based on the work of:
 *	Teemu Rantanen		Derrick Cole
 *	Peter Cervasio		Christoph Niemann
 *	Philip Blundell		Russell King
 *	Bob Harris
 */

/*
 * Inport (ATI XL and Microsoft) busmouse driver for Linux
 */

/*
 * 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, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <linux/module.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/input.h>

#include <asm/io.h>
#include <asm/irq.h>

MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Inport (ATI XL and Microsoft) busmouse driver");
MODULE_LICENSE("GPL");

#define INPORT_BASE		0x23c
#define INPORT_EXTENT		4

#define INPORT_CONTROL_PORT	INPORT_BASE + 0
#define INPORT_DATA_PORT	INPORT_BASE + 1
#define INPORT_SIGNATURE_PORT	INPORT_BASE + 2

#define INPORT_REG_BTNS	0x00
#define INPORT_REG_X		0x01
#define INPORT_REG_Y		0x02
#define INPORT_REG_MODE		0x07
#define INPORT_RESET		0x80

#ifdef CONFIG_MOUSE_ATIXL
#define INPORT_NAME		"ATI XL Mouse"
#define INPORT_VENDOR		0x0002
#define INPORT_SPEED_30HZ	0x01
#define INPORT_SPEED_50HZ	0x02
#define INPORT_SPEED_100HZ	0x03
#define INPORT_SPEED_200HZ	0x04
#define INPORT_MODE_BASE	INPORT_SPEED_100HZ
#define INPORT_MODE_IRQ		0x08
#else
#define INPORT_NAME		"Microsoft InPort Mouse"
#define INPORT_VENDOR		0x0001
#define INPORT_MODE_BASE	0x10
#define INPORT_MODE_IRQ		0x01
#endif
#define INPORT_MODE_HOLD	0x20

#define INPORT_IRQ		5

static int inport_irq = INPORT_IRQ;
module_param_hw_named(irq, inport_irq, uint, irq, 0);
MODULE_PARM_DESC(irq, "IRQ number (5=default)");

static struct input_dev *inport_dev;

static irqreturn_t inport_interrupt(int irq, void *dev_id)
{
	unsigned char buttons;

	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	outb(INPORT_MODE_HOLD | INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);

	outb(INPORT_REG_X, INPORT_CONTROL_PORT);
	input_report_rel(inport_dev, REL_X, inb(INPORT_DATA_PORT));

	outb(INPORT_REG_Y, INPORT_CONTROL_PORT);
	input_report_rel(inport_dev, REL_Y, inb(INPORT_DATA_PORT));

	outb(INPORT_REG_BTNS, INPORT_CONTROL_PORT);
	buttons = inb(INPORT_DATA_PORT);

	input_report_key(inport_dev, BTN_MIDDLE, buttons & 1);
	input_report_key(inport_dev, BTN_LEFT,   buttons & 2);
	input_report_key(inport_dev, BTN_RIGHT,  buttons & 4);

	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);

	input_sync(inport_dev);
	return IRQ_HANDLED;
}

static int inport_open(struct input_dev *dev)
{
	if (request_irq(inport_irq, inport_interrupt, 0, "inport", NULL))
		return -EBUSY;
	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);

	return 0;
}

static void inport_close(struct input_dev *dev)
{
	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
	free_irq(inport_irq, NULL);
}

static int __init inport_init(void)
{
	unsigned char a, b, c;
	int err;

	if (!request_region(INPORT_BASE, INPORT_EXTENT, "inport")) {
		printk(KERN_ERR "inport.c: Can't allocate ports at %#x\n", INPORT_BASE);
		return -EBUSY;
	}

	a = inb(INPORT_SIGNATURE_PORT);
	b = inb(INPORT_SIGNATURE_PORT);
	c = inb(INPORT_SIGNATURE_PORT);
	if (a == b || a != c) {
		printk(KERN_INFO "inport.c: Didn't find InPort mouse at %#x\n", INPORT_BASE);
		err = -ENODEV;
		goto err_release_region;
	}

	inport_dev = input_allocate_device();
	if (!inport_dev) {
		printk(KERN_ERR "inport.c: Not enough memory for input device\n");
		err = -ENOMEM;
		goto err_release_region;
	}

	inport_dev->name = INPORT_NAME;
	inport_dev->phys = "isa023c/input0";
	inport_dev->id.bustype = BUS_ISA;
	inport_dev->id.vendor  = INPORT_VENDOR;
	inport_dev->id.product = 0x0001;
	inport_dev->id.version = 0x0100;

	inport_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
	inport_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
		BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
	inport_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);

	inport_dev->open  = inport_open;
	inport_dev->close = inport_close;

	outb(INPORT_RESET, INPORT_CONTROL_PORT);
	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	outb(INPORT_MODE_BASE, INPORT_DATA_PORT);

	err = input_register_device(inport_dev);
	if (err)
		goto err_free_dev;

	return 0;

 err_free_dev:
	input_free_device(inport_dev);
 err_release_region:
	release_region(INPORT_BASE, INPORT_EXTENT);

	return err;
}

static void __exit inport_exit(void)
{
	input_unregister_device(inport_dev);
	release_region(INPORT_BASE, INPORT_EXTENT);
}

module_init(inport_init);
module_exit(inport_exit);
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* Copyright (c) 1999-2001 Vojtech Pavlik
	3	*
	4	* Based on the work of:
	5	* Teemu Rantanen Derrick Cole
	6	* Peter Cervasio Christoph Niemann
	7	* Philip Blundell Russell King
	8	* Bob Harris
	9	*/
	10
	11	/*
	12	* Inport (ATI XL and Microsoft) busmouse driver for Linux
	13	*/
	14
	15	/*
	16	* This program is free software; you can redistribute it and/or modify
	17	* it under the terms of the GNU General Public License as published by
968ac842	18	* the Free Software Foundation; either version 2 of the License, or
1da177e4	19	* (at your option) any later version.
968ac842	20	*
1da177e4 LT	21	* This program is distributed in the hope that it will be useful,
	22	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	23	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	24	* GNU General Public License for more details.
968ac842	25	*
1da177e4 LT	26	* You should have received a copy of the GNU General Public License
	27	* along with this program; if not, write to the Free Software
	28	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
1da177e4 LT	29	*/
	30
	31	#include <linux/module.h>
1da177e4 LT	32	#include <linux/ioport.h>
	33	#include <linux/init.h>
	34	#include <linux/interrupt.h>
	35	#include <linux/input.h>
	36
	37	#include <asm/io.h>
	38	#include <asm/irq.h>
	39
	40	MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
	41	MODULE_DESCRIPTION("Inport (ATI XL and Microsoft) busmouse driver");
	42	MODULE_LICENSE("GPL");
	43
	44	#define INPORT_BASE 0x23c
	45	#define INPORT_EXTENT 4
	46
	47	#define INPORT_CONTROL_PORT INPORT_BASE + 0
	48	#define INPORT_DATA_PORT INPORT_BASE + 1
	49	#define INPORT_SIGNATURE_PORT INPORT_BASE + 2
	50
	51	#define INPORT_REG_BTNS 0x00
	52	#define INPORT_REG_X 0x01
	53	#define INPORT_REG_Y 0x02
	54	#define INPORT_REG_MODE 0x07
	55	#define INPORT_RESET 0x80
	56
8370a643	57	#ifdef CONFIG_MOUSE_ATIXL
1da177e4 LT	58	#define INPORT_NAME "ATI XL Mouse"
	59	#define INPORT_VENDOR 0x0002
	60	#define INPORT_SPEED_30HZ 0x01
	61	#define INPORT_SPEED_50HZ 0x02
	62	#define INPORT_SPEED_100HZ 0x03
	63	#define INPORT_SPEED_200HZ 0x04
	64	#define INPORT_MODE_BASE INPORT_SPEED_100HZ
	65	#define INPORT_MODE_IRQ 0x08
	66	#else
	67	#define INPORT_NAME "Microsoft InPort Mouse"
	68	#define INPORT_VENDOR 0x0001
	69	#define INPORT_MODE_BASE 0x10
	70	#define INPORT_MODE_IRQ 0x01
	71	#endif
	72	#define INPORT_MODE_HOLD 0x20
	73
	74	#define INPORT_IRQ 5
	75
	76	static int inport_irq = INPORT_IRQ;
f6b12d04	77	module_param_hw_named(irq, inport_irq, uint, irq, 0);
1da177e4 LT	78	MODULE_PARM_DESC(irq, "IRQ number (5=default)");
1da177e4 LT	79
2e5b636b	80	static struct input_dev *inport_dev;
1da177e4	81
7d12e780	82	static irqreturn_t inport_interrupt(int irq, void *dev_id)
1da177e4 LT	83	{
	84	unsigned char buttons;
	85
	86	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	87	outb(INPORT_MODE_HOLD \| INPORT_MODE_IRQ \| INPORT_MODE_BASE, INPORT_DATA_PORT);
	88
1da177e4	89	outb(INPORT_REG_X, INPORT_CONTROL_PORT);
2e5b636b	90	input_report_rel(inport_dev, REL_X, inb(INPORT_DATA_PORT));
1da177e4 LT	91
1da177e4 LT	92	outb(INPORT_REG_Y, INPORT_CONTROL_PORT);
2e5b636b	93	input_report_rel(inport_dev, REL_Y, inb(INPORT_DATA_PORT));
1da177e4 LT	94
	95	outb(INPORT_REG_BTNS, INPORT_CONTROL_PORT);
	96	buttons = inb(INPORT_DATA_PORT);
	97
2e5b636b DT	98	input_report_key(inport_dev, BTN_MIDDLE, buttons & 1);
	99	input_report_key(inport_dev, BTN_LEFT, buttons & 2);
	100	input_report_key(inport_dev, BTN_RIGHT, buttons & 4);
1da177e4 LT	101
	102	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	103	outb(INPORT_MODE_IRQ \| INPORT_MODE_BASE, INPORT_DATA_PORT);
	104
2e5b636b	105	input_sync(inport_dev);
1da177e4 LT	106	return IRQ_HANDLED;
	107	}
	108
2e5b636b DT	109	static int inport_open(struct input_dev *dev)
	110	{
	111	if (request_irq(inport_irq, inport_interrupt, 0, "inport", NULL))
	112	return -EBUSY;
	113	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	114	outb(INPORT_MODE_IRQ \| INPORT_MODE_BASE, INPORT_DATA_PORT);
	115
	116	return 0;
	117	}
	118
	119	static void inport_close(struct input_dev *dev)
	120	{
	121	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	122	outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
	123	free_irq(inport_irq, NULL);
	124	}
	125
1da177e4 LT	126	static int __init inport_init(void)
1da177e4 LT	127	{
2e5b636b	128	unsigned char a, b, c;
72155615	129	int err;
1da177e4 LT	130
	131	if (!request_region(INPORT_BASE, INPORT_EXTENT, "inport")) {
	132	printk(KERN_ERR "inport.c: Can't allocate ports at %#x\n", INPORT_BASE);
	133	return -EBUSY;
	134	}
	135
	136	a = inb(INPORT_SIGNATURE_PORT);
	137	b = inb(INPORT_SIGNATURE_PORT);
	138	c = inb(INPORT_SIGNATURE_PORT);
2e5b636b	139	if (a == b \|\| a != c) {
2a0f9c4c	140	printk(KERN_INFO "inport.c: Didn't find InPort mouse at %#x\n", INPORT_BASE);
72155615 DT	141	err = -ENODEV;
72155615 DT	142	goto err_release_region;
1da177e4 LT	143	}
1da177e4 LT	144
72155615 DT	145	inport_dev = input_allocate_device();
72155615 DT	146	if (!inport_dev) {
2e5b636b	147	printk(KERN_ERR "inport.c: Not enough memory for input device\n");
72155615 DT	148	err = -ENOMEM;
72155615 DT	149	goto err_release_region;
2e5b636b DT	150	}
	151
	152	inport_dev->name = INPORT_NAME;
	153	inport_dev->phys = "isa023c/input0";
	154	inport_dev->id.bustype = BUS_ISA;
	155	inport_dev->id.vendor = INPORT_VENDOR;
	156	inport_dev->id.product = 0x0001;
	157	inport_dev->id.version = 0x0100;
	158
7b19ada2 JS	159	inport_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_REL);
	160	inport_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) \|
	161	BIT_MASK(BTN_MIDDLE) \| BIT_MASK(BTN_RIGHT);
	162	inport_dev->relbit[0] = BIT_MASK(REL_X) \| BIT_MASK(REL_Y);
2e5b636b DT	163
	164	inport_dev->open = inport_open;
	165	inport_dev->close = inport_close;
	166
1da177e4 LT	167	outb(INPORT_RESET, INPORT_CONTROL_PORT);
	168	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	169	outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
	170
72155615 DT	171	err = input_register_device(inport_dev);
	172	if (err)
	173	goto err_free_dev;
1da177e4 LT	174
1da177e4 LT	175	return 0;
72155615 DT	176
	177	err_free_dev:
	178	input_free_device(inport_dev);
	179	err_release_region:
	180	release_region(INPORT_BASE, INPORT_EXTENT);
	181
	182	return err;
1da177e4 LT	183	}
	184
	185	static void __exit inport_exit(void)
	186	{
2e5b636b	187	input_unregister_device(inport_dev);
1da177e4 LT	188	release_region(INPORT_BASE, INPORT_EXTENT);
	189	}
	190
	191	module_init(inport_init);
	192	module_exit(inport_exit);