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
178
179
180
181
182
183
184
185
186
|
/*
* Stowaway keyboard driver for Linux
*/
/*
* Copyright (c) 2006 Marek Vasut
*
* Based on Newton keyboard driver for Linux
* by Justin Cormack
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <marek.vasut@gmail.com>, or by paper mail:
* Marek Vasut, Liskovecka 559, Frydek-Mistek, 738 01 Czech Republic
*/
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/input.h>
#include <linux/init.h>
#include <linux/serio.h>
#define DRIVER_DESC "Stowaway keyboard driver"
MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
#define SKBD_KEY_MASK 0x7f
#define SKBD_RELEASE 0x80
static unsigned char skbd_keycode[128] = {
KEY_1, KEY_2, KEY_3, KEY_Z, KEY_4, KEY_5, KEY_6, KEY_7,
0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_GRAVE,
KEY_X, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_SPACE,
KEY_CAPSLOCK, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0,
0, 0, 0, KEY_LEFTALT, 0, 0, 0, 0,
0, 0, 0, 0, KEY_C, KEY_V, KEY_B, KEY_N,
KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_HOME, KEY_8, KEY_9, KEY_0, KEY_ESC,
KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_END, KEY_U, KEY_I, KEY_O, KEY_P,
KEY_APOSTROPHE, KEY_ENTER, KEY_PAGEUP,0, KEY_J, KEY_K, KEY_L, KEY_SEMICOLON,
KEY_SLASH, KEY_UP, KEY_PAGEDOWN, 0,KEY_M, KEY_COMMA, KEY_DOT, KEY_INSERT,
KEY_DELETE, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0,
KEY_LEFTSHIFT, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7,
KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, 0, 0, 0
};
struct skbd {
unsigned char keycode[128];
struct input_dev *dev;
struct serio *serio;
char phys[32];
};
static irqreturn_t skbd_interrupt(struct serio *serio, unsigned char data,
unsigned int flags)
{
struct skbd *skbd = serio_get_drvdata(serio);
struct input_dev *dev = skbd->dev;
if (skbd->keycode[data & SKBD_KEY_MASK]) {
input_report_key(dev, skbd->keycode[data & SKBD_KEY_MASK],
!(data & SKBD_RELEASE));
input_sync(dev);
}
return IRQ_HANDLED;
}
static int skbd_connect(struct serio *serio, struct serio_driver *drv)
{
struct skbd *skbd;
struct input_dev *input_dev;
int err = -ENOMEM;
int i;
skbd = kzalloc(sizeof(struct skbd), GFP_KERNEL);
input_dev = input_allocate_device();
if (!skbd || !input_dev)
goto fail1;
skbd->serio = serio;
skbd->dev = input_dev;
snprintf(skbd->phys, sizeof(skbd->phys), "%s/input0", serio->phys);
memcpy(skbd->keycode, skbd_keycode, sizeof(skbd->keycode));
input_dev->name = "Stowaway Keyboard";
input_dev->phys = skbd->phys;
input_dev->id.bustype = BUS_RS232;
input_dev->id.vendor = SERIO_STOWAWAY;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0100;
input_dev->cdev.dev = &serio->dev;
input_dev->private = skbd;
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
input_dev->keycode = skbd->keycode;
input_dev->keycodesize = sizeof(unsigned char);
input_dev->keycodemax = ARRAY_SIZE(skbd_keycode);
for (i = 0; i < ARRAY_SIZE(skbd_keycode); i++)
set_bit(skbd_keycode[i], input_dev->keybit);
clear_bit(0, input_dev->keybit);
serio_set_drvdata(serio, skbd);
err = serio_open(serio, drv);
if (err)
goto fail2;
err = input_register_device(skbd->dev);
if (err)
goto fail3;
return 0;
fail3: serio_close(serio);
fail2: serio_set_drvdata(serio, NULL);
fail1: input_free_device(input_dev);
kfree(skbd);
return err;
}
static void skbd_disconnect(struct serio *serio)
{
struct skbd *skbd = serio_get_drvdata(serio);
serio_close(serio);
serio_set_drvdata(serio, NULL);
input_unregister_device(skbd->dev);
kfree(skbd);
}
static struct serio_device_id skbd_serio_ids[] = {
{
.type = SERIO_RS232,
.proto = SERIO_STOWAWAY,
.id = SERIO_ANY,
.extra = SERIO_ANY,
},
{ 0 }
};
MODULE_DEVICE_TABLE(serio, skbd_serio_ids);
static struct serio_driver skbd_drv = {
.driver = {
.name = "stowaway",
},
.description = DRIVER_DESC,
.id_table = skbd_serio_ids,
.interrupt = skbd_interrupt,
.connect = skbd_connect,
.disconnect = skbd_disconnect,
};
static int __init skbd_init(void)
{
serio_register_driver(&skbd_drv);
return 0;
}
static void __exit skbd_exit(void)
{
serio_unregister_driver(&skbd_drv);
}
module_init(skbd_init);
module_exit(skbd_exit);
|
