[deliverable/linux.git] / drivers / input / mouse / inport.c

/*
 * $Id: inport.c,v 1.11 2001/09/25 10:12:07 vojtech Exp $
 *
 *  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
 *
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
 */

#include <linux/module.h>
#include <linux/moduleparam.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_named(irq, inport_irq, uint, 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_ERR "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(EV_KEY) | BIT(EV_REL);
	inport_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
	inport_dev->relbit[0] = BIT(REL_X) | BIT(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 LT	1	/*
	2	* $Id: inport.c,v 1.11 2001/09/25 10:12:07 vojtech Exp $
	3	*
	4	* Copyright (c) 1999-2001 Vojtech Pavlik
	5	*
	6	* Based on the work of:
	7	* Teemu Rantanen Derrick Cole
	8	* Peter Cervasio Christoph Niemann
	9	* Philip Blundell Russell King
	10	* Bob Harris
	11	*/
	12
	13	/*
	14	* Inport (ATI XL and Microsoft) busmouse driver for Linux
	15	*/
	16
	17	/*
	18	* This program is free software; you can redistribute it and/or modify
	19	* it under the terms of the GNU General Public License as published by
968ac842	20	* the Free Software Foundation; either version 2 of the License, or
1da177e4	21	* (at your option) any later version.
968ac842	22	*
1da177e4 LT	23	* This program is distributed in the hope that it will be useful,
	24	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	25	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	26	* GNU General Public License for more details.
968ac842	27	*
1da177e4 LT	28	* You should have received a copy of the GNU General Public License
	29	* along with this program; if not, write to the Free Software
	30	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
968ac842	31	*
1da177e4 LT	32	* Should you need to contact me, the author, you can do so either by
	33	* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
	34	* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
	35	*/
	36
	37	#include <linux/module.h>
	38	#include <linux/moduleparam.h>
1da177e4 LT	39	#include <linux/ioport.h>
	40	#include <linux/init.h>
	41	#include <linux/interrupt.h>
	42	#include <linux/input.h>
	43
	44	#include <asm/io.h>
	45	#include <asm/irq.h>
	46
	47	MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
	48	MODULE_DESCRIPTION("Inport (ATI XL and Microsoft) busmouse driver");
	49	MODULE_LICENSE("GPL");
	50
	51	#define INPORT_BASE 0x23c
	52	#define INPORT_EXTENT 4
	53
	54	#define INPORT_CONTROL_PORT INPORT_BASE + 0
	55	#define INPORT_DATA_PORT INPORT_BASE + 1
	56	#define INPORT_SIGNATURE_PORT INPORT_BASE + 2
	57
	58	#define INPORT_REG_BTNS 0x00
	59	#define INPORT_REG_X 0x01
	60	#define INPORT_REG_Y 0x02
	61	#define INPORT_REG_MODE 0x07
	62	#define INPORT_RESET 0x80
	63
8370a643	64	#ifdef CONFIG_MOUSE_ATIXL
1da177e4 LT	65	#define INPORT_NAME "ATI XL Mouse"
	66	#define INPORT_VENDOR 0x0002
	67	#define INPORT_SPEED_30HZ 0x01
	68	#define INPORT_SPEED_50HZ 0x02
	69	#define INPORT_SPEED_100HZ 0x03
	70	#define INPORT_SPEED_200HZ 0x04
	71	#define INPORT_MODE_BASE INPORT_SPEED_100HZ
	72	#define INPORT_MODE_IRQ 0x08
	73	#else
	74	#define INPORT_NAME "Microsoft InPort Mouse"
	75	#define INPORT_VENDOR 0x0001
	76	#define INPORT_MODE_BASE 0x10
	77	#define INPORT_MODE_IRQ 0x01
	78	#endif
	79	#define INPORT_MODE_HOLD 0x20
	80
	81	#define INPORT_IRQ 5
	82
	83	static int inport_irq = INPORT_IRQ;
	84	module_param_named(irq, inport_irq, uint, 0);
	85	MODULE_PARM_DESC(irq, "IRQ number (5=default)");
	86
2e5b636b	87	static struct input_dev *inport_dev;
1da177e4	88
7d12e780	89	static irqreturn_t inport_interrupt(int irq, void *dev_id)
1da177e4 LT	90	{
	91	unsigned char buttons;
	92
	93	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	94	outb(INPORT_MODE_HOLD \| INPORT_MODE_IRQ \| INPORT_MODE_BASE, INPORT_DATA_PORT);
	95
1da177e4	96	outb(INPORT_REG_X, INPORT_CONTROL_PORT);
2e5b636b	97	input_report_rel(inport_dev, REL_X, inb(INPORT_DATA_PORT));
1da177e4 LT	98
1da177e4 LT	99	outb(INPORT_REG_Y, INPORT_CONTROL_PORT);
2e5b636b	100	input_report_rel(inport_dev, REL_Y, inb(INPORT_DATA_PORT));
1da177e4 LT	101
	102	outb(INPORT_REG_BTNS, INPORT_CONTROL_PORT);
	103	buttons = inb(INPORT_DATA_PORT);
	104
2e5b636b DT	105	input_report_key(inport_dev, BTN_MIDDLE, buttons & 1);
	106	input_report_key(inport_dev, BTN_LEFT, buttons & 2);
	107	input_report_key(inport_dev, BTN_RIGHT, buttons & 4);
1da177e4 LT	108
	109	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	110	outb(INPORT_MODE_IRQ \| INPORT_MODE_BASE, INPORT_DATA_PORT);
	111
2e5b636b	112	input_sync(inport_dev);
1da177e4 LT	113	return IRQ_HANDLED;
	114	}
	115
2e5b636b DT	116	static int inport_open(struct input_dev *dev)
	117	{
	118	if (request_irq(inport_irq, inport_interrupt, 0, "inport", NULL))
	119	return -EBUSY;
	120	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	121	outb(INPORT_MODE_IRQ \| INPORT_MODE_BASE, INPORT_DATA_PORT);
	122
	123	return 0;
	124	}
	125
	126	static void inport_close(struct input_dev *dev)
	127	{
	128	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	129	outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
	130	free_irq(inport_irq, NULL);
	131	}
	132
1da177e4 LT	133	static int __init inport_init(void)
1da177e4 LT	134	{
2e5b636b	135	unsigned char a, b, c;
72155615	136	int err;
1da177e4 LT	137
	138	if (!request_region(INPORT_BASE, INPORT_EXTENT, "inport")) {
	139	printk(KERN_ERR "inport.c: Can't allocate ports at %#x\n", INPORT_BASE);
	140	return -EBUSY;
	141	}
	142
	143	a = inb(INPORT_SIGNATURE_PORT);
	144	b = inb(INPORT_SIGNATURE_PORT);
	145	c = inb(INPORT_SIGNATURE_PORT);
2e5b636b	146	if (a == b \|\| a != c) {
1da177e4	147	printk(KERN_ERR "inport.c: Didn't find InPort mouse at %#x\n", INPORT_BASE);
72155615 DT	148	err = -ENODEV;
72155615 DT	149	goto err_release_region;
1da177e4 LT	150	}
1da177e4 LT	151
72155615 DT	152	inport_dev = input_allocate_device();
72155615 DT	153	if (!inport_dev) {
2e5b636b	154	printk(KERN_ERR "inport.c: Not enough memory for input device\n");
72155615 DT	155	err = -ENOMEM;
72155615 DT	156	goto err_release_region;
2e5b636b DT	157	}
	158
	159	inport_dev->name = INPORT_NAME;
	160	inport_dev->phys = "isa023c/input0";
	161	inport_dev->id.bustype = BUS_ISA;
	162	inport_dev->id.vendor = INPORT_VENDOR;
	163	inport_dev->id.product = 0x0001;
	164	inport_dev->id.version = 0x0100;
	165
	166	inport_dev->evbit[0] = BIT(EV_KEY) \| BIT(EV_REL);
	167	inport_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) \| BIT(BTN_MIDDLE) \| BIT(BTN_RIGHT);
	168	inport_dev->relbit[0] = BIT(REL_X) \| BIT(REL_Y);
	169
	170	inport_dev->open = inport_open;
	171	inport_dev->close = inport_close;
	172
1da177e4 LT	173	outb(INPORT_RESET, INPORT_CONTROL_PORT);
	174	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	175	outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
	176
72155615 DT	177	err = input_register_device(inport_dev);
	178	if (err)
	179	goto err_free_dev;
1da177e4 LT	180
1da177e4 LT	181	return 0;
72155615 DT	182
	183	err_free_dev:
	184	input_free_device(inport_dev);
	185	err_release_region:
	186	release_region(INPORT_BASE, INPORT_EXTENT);
	187
	188	return err;
1da177e4 LT	189	}
	190
	191	static void __exit inport_exit(void)
	192	{
2e5b636b	193	input_unregister_device(inport_dev);
1da177e4 LT	194	release_region(INPORT_BASE, INPORT_EXTENT);
	195	}
	196
	197	module_init(inport_init);
	198	module_exit(inport_exit);