1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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
*/
#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_hw_named(irq, inport_irq, uint, irq, 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);
|
