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
|
/*
* $Id: maple_keyb.c,v 1.4 2004/03/22 01:18:15 lethal Exp $
* SEGA Dreamcast keyboard driver
* Based on drivers/usb/usbkbd.c
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/timer.h>
#include <linux/maple.h>
MODULE_AUTHOR("YAEGASHI Takeshi <t@keshi.org>");
MODULE_DESCRIPTION("SEGA Dreamcast keyboard driver");
MODULE_LICENSE("GPL");
static unsigned char dc_kbd_keycode[256] = {
0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
115,114, 0, 0, 0,121, 0, 89, 93,124, 92, 94, 95, 0, 0, 0,
122,123, 90, 91, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
150,158,159,128,136,177,178,176,142,152,173,140
};
struct dc_kbd {
struct input_dev *dev;
unsigned char new[8];
unsigned char old[8];
};
static void dc_scan_kbd(struct dc_kbd *kbd)
{
int i;
struct input_dev *dev = kbd->dev;
for (i = 0; i < 8; i++)
input_report_key(dev, dc_kbd_keycode[i + 224], (kbd->new[0] >> i) & 1);
for (i = 2; i < 8; i++) {
if (kbd->old[i] > 3 && memscan(kbd->new + 2, kbd->old[i], 6) == NULL) {
if (dc_kbd_keycode[kbd->old[i]])
input_report_key(dev, dc_kbd_keycode[kbd->old[i]], 0);
else
printk("Unknown key (scancode %#x) released.",
kbd->old[i]);
}
if (kbd->new[i] > 3 && memscan(kbd->old + 2, kbd->new[i], 6) != NULL) {
if(dc_kbd_keycode[kbd->new[i]])
input_report_key(dev, dc_kbd_keycode[kbd->new[i]], 1);
else
printk("Unknown key (scancode %#x) pressed.",
kbd->new[i]);
}
}
input_sync(dev);
memcpy(kbd->old, kbd->new, 8);
}
static void dc_kbd_callback(struct mapleq *mq)
{
struct maple_device *mapledev = mq->dev;
struct dc_kbd *kbd = mapledev->private_data;
unsigned long *buf = mq->recvbuf;
if (buf[1] == mapledev->function) {
memcpy(kbd->new, buf + 2, 8);
dc_scan_kbd(kbd);
}
}
static int dc_kbd_connect(struct maple_device *dev)
{
struct dc_kbd *kbd;
struct input_dev *input_dev;
unsigned long data = be32_to_cpu(dev->devinfo.function_data[0]);
int i;
int err;
dev->private_data = kbd = kzalloc(sizeof(struct dc_kbd), GFP_KERNEL);
input_dev = input_allocate_device();
if (!kbd || !input_dev) {
err = -ENOMEM;
goto fail;
}
kbd->dev = input_dev;
input_dev->name = dev->product_name;
input_dev->id.bustype = BUS_MAPLE;
input_dev->private = kbd;
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
for (i = 0; i < 255; i++)
set_bit(dc_kbd_keycode[i], input_dev->keybit);
clear_bit(0, input_dev->keybit);
err = input_register_device(kbd->dev);
if (err)
goto fail;
maple_getcond_callback(dev, dc_kbd_callback, 1, MAPLE_FUNC_KEYBOARD);
return 0;
fail: input_free_device(input_dev);
kfree(kbd);
return err;
}
static void dc_kbd_disconnect(struct maple_device *dev)
{
struct dc_kbd *kbd = dev->private_data;
input_unregister_device(kbd->dev);
kfree(kbd);
}
static struct maple_driver dc_kbd_driver = {
.function = MAPLE_FUNC_KEYBOARD,
.name = "Dreamcast keyboard",
.connect = dc_kbd_connect,
.disconnect = dc_kbd_disconnect,
};
static int __init dc_kbd_init(void)
{
maple_register_driver(&dc_kbd_driver);
return 0;
}
static void __exit dc_kbd_exit(void)
{
maple_unregister_driver(&dc_kbd_driver);
}
module_init(dc_kbd_init);
module_exit(dc_kbd_exit);
/*
* Local variables:
* c-basic-offset: 8
* End:
*/
|
