2 * $Id: xtkbd.c,v 1.11 2001/09/25 10:12:07 vojtech Exp $
4 * Copyright (c) 1999-2001 Vojtech Pavlik
8 * XT keyboard driver for Linux
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 * Should you need to contact me, the author, you can do so either by
27 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
28 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
31 #include <linux/slab.h>
32 #include <linux/module.h>
33 #include <linux/input.h>
34 #include <linux/init.h>
35 #include <linux/serio.h>
37 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
38 MODULE_DESCRIPTION("XT keyboard driver");
39 MODULE_LICENSE("GPL");
41 #define XTKBD_EMUL0 0xe0
42 #define XTKBD_EMUL1 0xe1
43 #define XTKBD_KEY 0x7f
44 #define XTKBD_RELEASE 0x80
46 static unsigned char xtkbd_keycode[256] = {
47 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
48 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
49 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
50 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
51 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
52 80, 81, 82, 83, 0, 0, 0, 87, 88, 0, 0, 0, 0, 0, 0, 0,
53 0, 0, 0, 0, 0, 87, 88, 0, 0, 0, 0,110,111,103,108,105,
57 static char *xtkbd_name = "XT Keyboard";
60 unsigned char keycode[256];
66 irqreturn_t xtkbd_interrupt(struct serio *serio,
67 unsigned char data, unsigned int flags, struct pt_regs *regs)
69 struct xtkbd *xtkbd = serio->private;
77 if (xtkbd->keycode[data & XTKBD_KEY]) {
78 input_regs(&xtkbd->dev, regs);
79 input_report_key(&xtkbd->dev, xtkbd->keycode[data & XTKBD_KEY], !(data & XTKBD_RELEASE));
80 input_sync(&xtkbd->dev);
82 printk(KERN_WARNING "xtkbd.c: Unknown key (scancode %#x) %s.\n",
83 data & XTKBD_KEY, data & XTKBD_RELEASE ? "released" : "pressed");
89 void xtkbd_connect(struct serio *serio, struct serio_dev *dev)
94 if ((serio->type & SERIO_TYPE) != SERIO_XT)
97 if (!(xtkbd = kmalloc(sizeof(struct xtkbd), GFP_KERNEL)))
100 memset(xtkbd, 0, sizeof(struct xtkbd));
102 xtkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
104 xtkbd->serio = serio;
106 init_input_dev(&xtkbd->dev);
107 xtkbd->dev.keycode = xtkbd->keycode;
108 xtkbd->dev.keycodesize = sizeof(unsigned char);
109 xtkbd->dev.keycodemax = ARRAY_SIZE(xtkbd_keycode);
110 xtkbd->dev.private = xtkbd;
112 serio->private = xtkbd;
114 if (serio_open(serio, dev)) {
119 memcpy(xtkbd->keycode, xtkbd_keycode, sizeof(xtkbd->keycode));
120 for (i = 0; i < 255; i++)
121 set_bit(xtkbd->keycode[i], xtkbd->dev.keybit);
122 clear_bit(0, xtkbd->dev.keybit);
124 sprintf(xtkbd->phys, "%s/input0", serio->phys);
126 xtkbd->dev.name = xtkbd_name;
127 xtkbd->dev.phys = xtkbd->phys;
128 xtkbd->dev.id.bustype = BUS_XTKBD;
129 xtkbd->dev.id.vendor = 0x0001;
130 xtkbd->dev.id.product = 0x0001;
131 xtkbd->dev.id.version = 0x0100;
133 input_register_device(&xtkbd->dev);
135 printk(KERN_INFO "input: %s on %s\n", xtkbd_name, serio->phys);
138 void xtkbd_disconnect(struct serio *serio)
140 struct xtkbd *xtkbd = serio->private;
141 input_unregister_device(&xtkbd->dev);
146 struct serio_dev xtkbd_dev = {
147 .interrupt = xtkbd_interrupt,
148 .connect = xtkbd_connect,
149 .disconnect = xtkbd_disconnect
152 int __init xtkbd_init(void)
154 serio_register_device(&xtkbd_dev);
158 void __exit xtkbd_exit(void)
160 serio_unregister_device(&xtkbd_dev);
163 module_init(xtkbd_init);
164 module_exit(xtkbd_exit);