2 * Copyright (c) 1999-2001 Vojtech Pavlik
4 * Based on the work of:
5 * Teemu Rantanen Derrick Cole
6 * Peter Cervasio Christoph Niemann
7 * Philip Blundell Russell King
12 * Inport (ATI XL and Microsoft) busmouse driver for Linux
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.
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.
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
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
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>
44 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
45 MODULE_DESCRIPTION("Inport (ATI XL and Microsoft) busmouse driver");
46 MODULE_LICENSE("GPL");
48 #define INPORT_BASE 0x23c
49 #define INPORT_EXTENT 4
51 #define INPORT_CONTROL_PORT INPORT_BASE + 0
52 #define INPORT_DATA_PORT INPORT_BASE + 1
53 #define INPORT_SIGNATURE_PORT INPORT_BASE + 2
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
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
71 #define INPORT_NAME "Microsoft InPort Mouse"
72 #define INPORT_VENDOR 0x0001
73 #define INPORT_MODE_BASE 0x10
74 #define INPORT_MODE_IRQ 0x01
76 #define INPORT_MODE_HOLD 0x20
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)");
84 static struct input_dev *inport_dev;
86 static irqreturn_t inport_interrupt(int irq, void *dev_id)
88 unsigned char buttons;
90 outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
91 outb(INPORT_MODE_HOLD | INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
93 outb(INPORT_REG_X, INPORT_CONTROL_PORT);
94 input_report_rel(inport_dev, REL_X, inb(INPORT_DATA_PORT));
96 outb(INPORT_REG_Y, INPORT_CONTROL_PORT);
97 input_report_rel(inport_dev, REL_Y, inb(INPORT_DATA_PORT));
99 outb(INPORT_REG_BTNS, INPORT_CONTROL_PORT);
100 buttons = inb(INPORT_DATA_PORT);
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);
106 outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
107 outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
109 input_sync(inport_dev);
113 static int inport_open(struct input_dev *dev)
115 if (request_irq(inport_irq, inport_interrupt, 0, "inport", NULL))
117 outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
118 outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
123 static void inport_close(struct input_dev *dev)
125 outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
126 outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
127 free_irq(inport_irq, NULL);
130 static int __init inport_init(void)
132 unsigned char a, b, c;
135 if (!request_region(INPORT_BASE, INPORT_EXTENT, "inport")) {
136 printk(KERN_ERR "inport.c: Can't allocate ports at %#x\n", INPORT_BASE);
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);
146 goto err_release_region;
149 inport_dev = input_allocate_device();
151 printk(KERN_ERR "inport.c: Not enough memory for input device\n");
153 goto err_release_region;
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;
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);
168 inport_dev->open = inport_open;
169 inport_dev->close = inport_close;
171 outb(INPORT_RESET, INPORT_CONTROL_PORT);
172 outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
173 outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
175 err = input_register_device(inport_dev);
182 input_free_device(inport_dev);
184 release_region(INPORT_BASE, INPORT_EXTENT);
189 static void __exit inport_exit(void)
191 input_unregister_device(inport_dev);
192 release_region(INPORT_BASE, INPORT_EXTENT);
195 module_init(inport_init);
196 module_exit(inport_exit);