forked from Minki/linux
3108d42de4
core takes care of calling open and close methods only when needed. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
191 lines
5.2 KiB
C
191 lines
5.2 KiB
C
/*
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* $Id: inport.c,v 1.11 2001/09/25 10:12:07 vojtech Exp $
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*
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* Copyright (c) 1999-2001 Vojtech Pavlik
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*
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* Based on the work of:
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* Teemu Rantanen Derrick Cole
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* Peter Cervasio Christoph Niemann
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* Philip Blundell Russell King
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* Bob Harris
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*/
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/*
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* Inport (ATI XL and Microsoft) busmouse driver for Linux
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Should you need to contact me, the author, you can do so either by
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* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/config.h>
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#include <linux/ioport.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/input.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION("Inport (ATI XL and Microsoft) busmouse driver");
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MODULE_LICENSE("GPL");
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#define INPORT_BASE 0x23c
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#define INPORT_EXTENT 4
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#define INPORT_CONTROL_PORT INPORT_BASE + 0
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#define INPORT_DATA_PORT INPORT_BASE + 1
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#define INPORT_SIGNATURE_PORT INPORT_BASE + 2
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#define INPORT_REG_BTNS 0x00
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#define INPORT_REG_X 0x01
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#define INPORT_REG_Y 0x02
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#define INPORT_REG_MODE 0x07
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#define INPORT_RESET 0x80
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#ifdef CONFIG_INPUT_ATIXL
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#define INPORT_NAME "ATI XL Mouse"
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#define INPORT_VENDOR 0x0002
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#define INPORT_SPEED_30HZ 0x01
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#define INPORT_SPEED_50HZ 0x02
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#define INPORT_SPEED_100HZ 0x03
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#define INPORT_SPEED_200HZ 0x04
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#define INPORT_MODE_BASE INPORT_SPEED_100HZ
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#define INPORT_MODE_IRQ 0x08
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#else
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#define INPORT_NAME "Microsoft InPort Mouse"
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#define INPORT_VENDOR 0x0001
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#define INPORT_MODE_BASE 0x10
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#define INPORT_MODE_IRQ 0x01
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#endif
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#define INPORT_MODE_HOLD 0x20
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#define INPORT_IRQ 5
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static int inport_irq = INPORT_IRQ;
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module_param_named(irq, inport_irq, uint, 0);
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MODULE_PARM_DESC(irq, "IRQ number (5=default)");
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__obsolete_setup("inport_irq=");
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static irqreturn_t inport_interrupt(int irq, void *dev_id, struct pt_regs *regs);
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static int inport_open(struct input_dev *dev)
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{
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if (request_irq(inport_irq, inport_interrupt, 0, "inport", NULL))
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return -EBUSY;
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outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
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outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
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return 0;
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}
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static void inport_close(struct input_dev *dev)
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{
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outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
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outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
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free_irq(inport_irq, NULL);
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}
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static struct input_dev inport_dev = {
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.evbit = { BIT(EV_KEY) | BIT(EV_REL) },
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.keybit = { [LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT) },
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.relbit = { BIT(REL_X) | BIT(REL_Y) },
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.open = inport_open,
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.close = inport_close,
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.name = INPORT_NAME,
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.phys = "isa023c/input0",
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.id = {
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.bustype = BUS_ISA,
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.vendor = INPORT_VENDOR,
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.product = 0x0001,
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.version = 0x0100,
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},
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};
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static irqreturn_t inport_interrupt(int irq, void *dev_id, struct pt_regs *regs)
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{
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unsigned char buttons;
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outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
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outb(INPORT_MODE_HOLD | INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
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input_regs(&inport_dev, regs);
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outb(INPORT_REG_X, INPORT_CONTROL_PORT);
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input_report_rel(&inport_dev, REL_X, inb(INPORT_DATA_PORT));
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outb(INPORT_REG_Y, INPORT_CONTROL_PORT);
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input_report_rel(&inport_dev, REL_Y, inb(INPORT_DATA_PORT));
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outb(INPORT_REG_BTNS, INPORT_CONTROL_PORT);
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buttons = inb(INPORT_DATA_PORT);
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input_report_key(&inport_dev, BTN_MIDDLE, buttons & 1);
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input_report_key(&inport_dev, BTN_LEFT, buttons & 2);
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input_report_key(&inport_dev, BTN_RIGHT, buttons & 4);
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outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
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outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
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input_sync(&inport_dev);
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return IRQ_HANDLED;
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}
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static int __init inport_init(void)
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{
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unsigned char a,b,c;
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if (!request_region(INPORT_BASE, INPORT_EXTENT, "inport")) {
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printk(KERN_ERR "inport.c: Can't allocate ports at %#x\n", INPORT_BASE);
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return -EBUSY;
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}
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a = inb(INPORT_SIGNATURE_PORT);
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b = inb(INPORT_SIGNATURE_PORT);
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c = inb(INPORT_SIGNATURE_PORT);
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if (( a == b ) || ( a != c )) {
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release_region(INPORT_BASE, INPORT_EXTENT);
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printk(KERN_ERR "inport.c: Didn't find InPort mouse at %#x\n", INPORT_BASE);
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return -ENODEV;
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}
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outb(INPORT_RESET, INPORT_CONTROL_PORT);
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outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
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outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
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input_register_device(&inport_dev);
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printk(KERN_INFO "input: " INPORT_NAME " at %#x irq %d\n", INPORT_BASE, inport_irq);
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return 0;
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}
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static void __exit inport_exit(void)
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{
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input_unregister_device(&inport_dev);
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release_region(INPORT_BASE, INPORT_EXTENT);
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}
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module_init(inport_init);
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module_exit(inport_exit);
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