[mirror_ubuntu-bionic-kernel.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
 *
 * 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/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_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
	1	/*
	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
	18	* the Free Software Foundation; either version 2 of the License, or
	19	* (at your option) any later version.
	20	*
	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.
	25	*
	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
	29	*
	30	* Should you need to contact me, the author, you can do so either by
	31	* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
	32	* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
	33	*/
	34
	35	#include <linux/module.h>
	36	#include <linux/ioport.h>
	37	#include <linux/init.h>
	38	#include <linux/interrupt.h>
	39	#include <linux/input.h>
	40
	41	#include <asm/io.h>
	42	#include <asm/irq.h>
	43
	44	MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
	45	MODULE_DESCRIPTION("Inport (ATI XL and Microsoft) busmouse driver");
	46	MODULE_LICENSE("GPL");
	47
	48	#define INPORT_BASE 0x23c
	49	#define INPORT_EXTENT 4
	50
	51	#define INPORT_CONTROL_PORT INPORT_BASE + 0
	52	#define INPORT_DATA_PORT INPORT_BASE + 1
	53	#define INPORT_SIGNATURE_PORT INPORT_BASE + 2
	54
	55	#define INPORT_REG_BTNS 0x00
	56	#define INPORT_REG_X 0x01
	57	#define INPORT_REG_Y 0x02
	58	#define INPORT_REG_MODE 0x07
	59	#define INPORT_RESET 0x80
	60
	61	#ifdef CONFIG_MOUSE_ATIXL
	62	#define INPORT_NAME "ATI XL Mouse"
	63	#define INPORT_VENDOR 0x0002
	64	#define INPORT_SPEED_30HZ 0x01
	65	#define INPORT_SPEED_50HZ 0x02
	66	#define INPORT_SPEED_100HZ 0x03
	67	#define INPORT_SPEED_200HZ 0x04
	68	#define INPORT_MODE_BASE INPORT_SPEED_100HZ
	69	#define INPORT_MODE_IRQ 0x08
	70	#else
	71	#define INPORT_NAME "Microsoft InPort Mouse"
	72	#define INPORT_VENDOR 0x0001
	73	#define INPORT_MODE_BASE 0x10
	74	#define INPORT_MODE_IRQ 0x01
	75	#endif
	76	#define INPORT_MODE_HOLD 0x20
	77
	78	#define INPORT_IRQ 5
	79
	80	static int inport_irq = INPORT_IRQ;
	81	module_param_named(irq, inport_irq, uint, 0);
	82	MODULE_PARM_DESC(irq, "IRQ number (5=default)");
	83
	84	static struct input_dev *inport_dev;
	85
	86	static irqreturn_t inport_interrupt(int irq, void *dev_id)
	87	{
	88	unsigned char buttons;
	89
	90	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	91	outb(INPORT_MODE_HOLD \| INPORT_MODE_IRQ \| INPORT_MODE_BASE, INPORT_DATA_PORT);
	92
	93	outb(INPORT_REG_X, INPORT_CONTROL_PORT);
	94	input_report_rel(inport_dev, REL_X, inb(INPORT_DATA_PORT));
	95
	96	outb(INPORT_REG_Y, INPORT_CONTROL_PORT);
	97	input_report_rel(inport_dev, REL_Y, inb(INPORT_DATA_PORT));
	98
	99	outb(INPORT_REG_BTNS, INPORT_CONTROL_PORT);
	100	buttons = inb(INPORT_DATA_PORT);
	101
	102	input_report_key(inport_dev, BTN_MIDDLE, buttons & 1);
	103	input_report_key(inport_dev, BTN_LEFT, buttons & 2);
	104	input_report_key(inport_dev, BTN_RIGHT, buttons & 4);
	105
	106	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	107	outb(INPORT_MODE_IRQ \| INPORT_MODE_BASE, INPORT_DATA_PORT);
	108
	109	input_sync(inport_dev);
	110	return IRQ_HANDLED;
	111	}
	112
	113	static int inport_open(struct input_dev *dev)
	114	{
	115	if (request_irq(inport_irq, inport_interrupt, 0, "inport", NULL))
	116	return -EBUSY;
	117	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	118	outb(INPORT_MODE_IRQ \| INPORT_MODE_BASE, INPORT_DATA_PORT);
	119
	120	return 0;
	121	}
	122
	123	static void inport_close(struct input_dev *dev)
	124	{
	125	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	126	outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
	127	free_irq(inport_irq, NULL);
	128	}
	129
	130	static int __init inport_init(void)
	131	{
	132	unsigned char a, b, c;
	133	int err;
	134
	135	if (!request_region(INPORT_BASE, INPORT_EXTENT, "inport")) {
	136	printk(KERN_ERR "inport.c: Can't allocate ports at %#x\n", INPORT_BASE);
	137	return -EBUSY;
	138	}
	139
	140	a = inb(INPORT_SIGNATURE_PORT);
	141	b = inb(INPORT_SIGNATURE_PORT);
	142	c = inb(INPORT_SIGNATURE_PORT);
	143	if (a == b \|\| a != c) {
	144	printk(KERN_INFO "inport.c: Didn't find InPort mouse at %#x\n", INPORT_BASE);
	145	err = -ENODEV;
	146	goto err_release_region;
	147	}
	148
	149	inport_dev = input_allocate_device();
	150	if (!inport_dev) {
	151	printk(KERN_ERR "inport.c: Not enough memory for input device\n");
	152	err = -ENOMEM;
	153	goto err_release_region;
	154	}
	155
	156	inport_dev->name = INPORT_NAME;
	157	inport_dev->phys = "isa023c/input0";
	158	inport_dev->id.bustype = BUS_ISA;
	159	inport_dev->id.vendor = INPORT_VENDOR;
	160	inport_dev->id.product = 0x0001;
	161	inport_dev->id.version = 0x0100;
	162
	163	inport_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_REL);
	164	inport_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) \|
	165	BIT_MASK(BTN_MIDDLE) \| BIT_MASK(BTN_RIGHT);
	166	inport_dev->relbit[0] = BIT_MASK(REL_X) \| BIT_MASK(REL_Y);
	167
	168	inport_dev->open = inport_open;
	169	inport_dev->close = inport_close;
	170
	171	outb(INPORT_RESET, INPORT_CONTROL_PORT);
	172	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
	173	outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
	174
	175	err = input_register_device(inport_dev);
	176	if (err)
	177	goto err_free_dev;
	178
	179	return 0;
	180
	181	err_free_dev:
	182	input_free_device(inport_dev);
	183	err_release_region:
	184	release_region(INPORT_BASE, INPORT_EXTENT);
	185
	186	return err;
	187	}
	188
	189	static void __exit inport_exit(void)
	190	{
	191	input_unregister_device(inport_dev);
	192	release_region(INPORT_BASE, INPORT_EXTENT);
	193	}
	194
	195	module_init(inport_init);
	196	module_exit(inport_exit);