/* * $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 5 static 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 struct input_dev *inport_dev; 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 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; 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; } if (!(inport_dev = input_allocate_device())) { printk(KERN_ERR "inport.c: Not enough memory for input device\n"); release_region(INPORT_BASE, INPORT_EXTENT); return -ENOMEM; } 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); input_register_device(inport_dev); 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);