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1 | /* |
2 | * Copyright (c) 1999-2001 Vojtech Pavlik |
3 | * |
4 | * Based on the work of: |
5 | * Teemu Rantanen Derrick Cole |
6 | * Peter Cervasio Christoph Niemann |
7 | * Philip Blundell Russell King |
8 | * Bob Harris |
9 | */ |
10 | |
11 | /* |
12 | * Inport (ATI XL and Microsoft) busmouse driver for Linux |
13 | */ |
14 | |
15 | /* |
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. |
20 | * |
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. |
25 | * |
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 |
29 | * |
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 |
33 | */ |
34 | |
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> |
40 | |
41 | #include <asm/io.h> |
42 | #include <asm/irq.h> |
43 | |
44 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); |
45 | MODULE_DESCRIPTION("Inport (ATI XL and Microsoft) busmouse driver"); |
46 | MODULE_LICENSE("GPL"); |
47 | |
48 | #define INPORT_BASE 0x23c |
49 | #define INPORT_EXTENT 4 |
50 | |
51 | #define INPORT_CONTROL_PORT INPORT_BASE + 0 |
52 | #define INPORT_DATA_PORT INPORT_BASE + 1 |
53 | #define INPORT_SIGNATURE_PORT INPORT_BASE + 2 |
54 | |
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 |
60 | |
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 |
70 | #else |
71 | #define INPORT_NAME "Microsoft InPort Mouse" |
72 | #define INPORT_VENDOR 0x0001 |
73 | #define INPORT_MODE_BASE 0x10 |
74 | #define INPORT_MODE_IRQ 0x01 |
75 | #endif |
76 | #define INPORT_MODE_HOLD 0x20 |
77 | |
78 | #define INPORT_IRQ 5 |
79 | |
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)"); |
83 | |
84 | static struct input_dev *inport_dev; |
85 | |
86 | static irqreturn_t inport_interrupt(int irq, void *dev_id) |
87 | { |
88 | unsigned char buttons; |
89 | |
90 | outb(INPORT_REG_MODE, INPORT_CONTROL_PORT); |
91 | outb(INPORT_MODE_HOLD | INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT); |
92 | |
93 | outb(INPORT_REG_X, INPORT_CONTROL_PORT); |
94 | input_report_rel(inport_dev, REL_X, inb(INPORT_DATA_PORT)); |
95 | |
96 | outb(INPORT_REG_Y, INPORT_CONTROL_PORT); |
97 | input_report_rel(inport_dev, REL_Y, inb(INPORT_DATA_PORT)); |
98 | |
99 | outb(INPORT_REG_BTNS, INPORT_CONTROL_PORT); |
100 | buttons = inb(INPORT_DATA_PORT); |
101 | |
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); |
105 | |
106 | outb(INPORT_REG_MODE, INPORT_CONTROL_PORT); |
107 | outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT); |
108 | |
109 | input_sync(inport_dev); |
110 | return IRQ_HANDLED; |
111 | } |
112 | |
113 | static int inport_open(struct input_dev *dev) |
114 | { |
115 | if (request_irq(inport_irq, inport_interrupt, 0, "inport", NULL)) |
116 | return -EBUSY; |
117 | outb(INPORT_REG_MODE, INPORT_CONTROL_PORT); |
118 | outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT); |
119 | |
120 | return 0; |
121 | } |
122 | |
123 | static void inport_close(struct input_dev *dev) |
124 | { |
125 | outb(INPORT_REG_MODE, INPORT_CONTROL_PORT); |
126 | outb(INPORT_MODE_BASE, INPORT_DATA_PORT); |
127 | free_irq(inport_irq, NULL); |
128 | } |
129 | |
130 | static int __init inport_init(void) |
131 | { |
132 | unsigned char a, b, c; |
133 | int err; |
134 | |
135 | if (!request_region(INPORT_BASE, INPORT_EXTENT, "inport")) { |
136 | printk(KERN_ERR "inport.c: Can't allocate ports at %#x\n", INPORT_BASE); |
137 | return -EBUSY; |
138 | } |
139 | |
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); |
145 | err = -ENODEV; |
146 | goto err_release_region; |
147 | } |
148 | |
149 | inport_dev = input_allocate_device(); |
150 | if (!inport_dev) { |
151 | printk(KERN_ERR "inport.c: Not enough memory for input device\n"); |
152 | err = -ENOMEM; |
153 | goto err_release_region; |
154 | } |
155 | |
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; |
162 | |
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); |
167 | |
168 | inport_dev->open = inport_open; |
169 | inport_dev->close = inport_close; |
170 | |
171 | outb(INPORT_RESET, INPORT_CONTROL_PORT); |
172 | outb(INPORT_REG_MODE, INPORT_CONTROL_PORT); |
173 | outb(INPORT_MODE_BASE, INPORT_DATA_PORT); |
174 | |
175 | err = input_register_device(inport_dev); |
176 | if (err) |
177 | goto err_free_dev; |
178 | |
179 | return 0; |
180 | |
181 | err_free_dev: |
182 | input_free_device(inport_dev); |
183 | err_release_region: |
184 | release_region(INPORT_BASE, INPORT_EXTENT); |
185 | |
186 | return err; |
187 | } |
188 | |
189 | static void __exit inport_exit(void) |
190 | { |
191 | input_unregister_device(inport_dev); |
192 | release_region(INPORT_BASE, INPORT_EXTENT); |
193 | } |
194 | |
195 | module_init(inport_init); |
196 | module_exit(inport_exit); |
197 |
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