/* * $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/config.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_INPUT_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		5static int inport_irq = INPORT_IRQ;module_param_named(irq, inport_irq, uint, 0);MODULE_PARM_DESC(irq, "IRQ number (5=default)");__obsolete_setup("inport_irq=");static irqreturn_t inport_interrupt(int irq, void *dev_id, struct pt_regs *regs);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 struct input_dev inport_dev = {	.evbit	= { BIT(EV_KEY) | BIT(EV_REL) },	.keybit	= { [LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT) },	.relbit	= { BIT(REL_X) | BIT(REL_Y) },	.open	= inport_open,	.close	= inport_close,	.name	= INPORT_NAME,	.phys	= "isa023c/input0",	.id = {		.bustype = BUS_ISA,		.vendor  = INPORT_VENDOR,		.product = 0x0001,		.version = 0x0100,	},};static irqreturn_t inport_interrupt(int irq, void *dev_id, struct pt_regs *regs){	unsigned char buttons;	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);	outb(INPORT_MODE_HOLD | INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);	input_regs(&inport_dev, regs);	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 __init inport_init(void){	unsigned char a,b,c;	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 )) {		release_region(INPORT_BASE, INPORT_EXTENT);		printk(KERN_ERR "inport.c: Didn't find InPort mouse at %#x\n", INPORT_BASE);		return -ENODEV;	}	outb(INPORT_RESET, INPORT_CONTROL_PORT);	outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);	outb(INPORT_MODE_BASE, INPORT_DATA_PORT);	input_register_device(&inport_dev);	printk(KERN_INFO "input: " INPORT_NAME " at %#x irq %d\n", INPORT_BASE, inport_irq);	return 0;}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);