2 * $Id: sunkbd.c,v 1.14 2001/09/25 10:12:07 vojtech Exp $
4 * Copyright (c) 1999-2001 Vojtech Pavlik
8 * Sun 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/delay.h>
32 #include <linux/slab.h>
33 #include <linux/module.h>
34 #include <linux/interrupt.h>
35 #include <linux/init.h>
36 #include <linux/input.h>
37 #include <linux/serio.h>
38 #include <linux/workqueue.h>
40 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
41 MODULE_DESCRIPTION("Sun keyboard driver");
42 MODULE_LICENSE("GPL");
44 static unsigned char sunkbd_keycode[128] = {
45 0,128,114,129,115, 59, 60, 68, 61, 87, 62, 88, 63,100, 64, 0,
46 65, 66, 67, 56,103,119, 99, 70,105,130,131,108,106, 1, 2, 3,
47 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 41, 14,110,113, 98, 55,
48 116,132, 83,133,102, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
49 26, 27,111,127, 71, 72, 73, 74,134,135,107, 0, 29, 30, 31, 32,
50 33, 34, 35, 36, 37, 38, 39, 40, 43, 28, 96, 75, 76, 77, 82,136,
51 104,137, 69, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,101,
52 79, 80, 81, 0, 0, 0,138, 58,125, 57,126,109, 86, 78
55 #define SUNKBD_CMD_RESET 0x1
56 #define SUNKBD_CMD_BELLON 0x2
57 #define SUNKBD_CMD_BELLOFF 0x3
58 #define SUNKBD_CMD_CLICK 0xa
59 #define SUNKBD_CMD_NOCLICK 0xb
60 #define SUNKBD_CMD_SETLED 0xe
61 #define SUNKBD_CMD_LAYOUT 0xf
63 #define SUNKBD_RET_RESET 0xff
64 #define SUNKBD_RET_ALLUP 0x7f
65 #define SUNKBD_RET_LAYOUT 0xfe
67 #define SUNKBD_LAYOUT_5_MASK 0x20
68 #define SUNKBD_RELEASE 0x80
69 #define SUNKBD_KEY 0x7f
76 unsigned char keycode[128];
79 struct work_struct tq;
80 wait_queue_head_t wait;
89 * sunkbd_interrupt() is called by the low level driver when a character
93 static irqreturn_t sunkbd_interrupt(struct serio *serio,
94 unsigned char data, unsigned int flags, struct pt_regs *regs)
96 struct sunkbd* sunkbd = serio->private;
98 if (sunkbd->reset <= -1) { /* If cp[i] is 0xff, sunkbd->reset will stay -1. */
99 sunkbd->reset = data; /* The keyboard sends 0xff 0xff 0xID on powerup */
100 wake_up_interruptible(&sunkbd->wait);
104 if (sunkbd->layout == -1) {
105 sunkbd->layout = data;
106 wake_up_interruptible(&sunkbd->wait);
112 case SUNKBD_RET_RESET:
113 schedule_work(&sunkbd->tq);
117 case SUNKBD_RET_LAYOUT:
121 case SUNKBD_RET_ALLUP: /* All keys released */
125 if (sunkbd->keycode[data & SUNKBD_KEY]) {
126 input_regs(&sunkbd->dev, regs);
127 input_report_key(&sunkbd->dev, sunkbd->keycode[data & SUNKBD_KEY], !(data & SUNKBD_RELEASE));
128 input_sync(&sunkbd->dev);
130 printk(KERN_WARNING "sunkbd.c: Unknown key (scancode %#x) %s.\n",
131 data & SUNKBD_KEY, data & SUNKBD_RELEASE ? "released" : "pressed");
139 * sunkbd_event() handles events from the input module.
142 static int sunkbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
144 struct sunkbd *sunkbd = dev->private;
150 sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_SETLED);
151 sunkbd->serio->write(sunkbd->serio,
152 (!!test_bit(LED_CAPSL, dev->led) << 3) | (!!test_bit(LED_SCROLLL, dev->led) << 2) |
153 (!!test_bit(LED_COMPOSE, dev->led) << 1) | !!test_bit(LED_NUML, dev->led));
161 sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_NOCLICK - value);
165 sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_BELLOFF - value);
176 * sunkbd_initialize() checks for a Sun keyboard attached, and determines
180 static int sunkbd_initialize(struct sunkbd *sunkbd)
183 sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_RESET);
184 wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0, HZ);
185 if (sunkbd->reset <0)
188 sunkbd->type = sunkbd->reset;
190 if (sunkbd->type == 4) { /* Type 4 keyboard */
192 sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_LAYOUT);
193 wait_event_interruptible_timeout(sunkbd->wait, sunkbd->layout >= 0, HZ/4);
194 if (sunkbd->layout < 0) return -1;
195 if (sunkbd->layout & SUNKBD_LAYOUT_5_MASK) sunkbd->type = 5;
202 * sunkbd_reinit() sets leds and beeps to a state the computer remembers they
206 static void sunkbd_reinit(void *data)
208 struct sunkbd *sunkbd = data;
210 wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0, HZ);
212 sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_SETLED);
213 sunkbd->serio->write(sunkbd->serio,
214 (!!test_bit(LED_CAPSL, sunkbd->dev.led) << 3) | (!!test_bit(LED_SCROLLL, sunkbd->dev.led) << 2) |
215 (!!test_bit(LED_COMPOSE, sunkbd->dev.led) << 1) | !!test_bit(LED_NUML, sunkbd->dev.led));
216 sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_NOCLICK - !!test_bit(SND_CLICK, sunkbd->dev.snd));
217 sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_BELLOFF - !!test_bit(SND_BELL, sunkbd->dev.snd));
221 * sunkbd_connect() probes for a Sun keyboard and fills the necessary structures.
224 static void sunkbd_connect(struct serio *serio, struct serio_dev *dev)
226 struct sunkbd *sunkbd;
229 if ((serio->type & SERIO_TYPE) != SERIO_RS232)
232 if ((serio->type & SERIO_PROTO) && (serio->type & SERIO_PROTO) != SERIO_SUNKBD)
235 if (!(sunkbd = kmalloc(sizeof(struct sunkbd), GFP_KERNEL)))
238 memset(sunkbd, 0, sizeof(struct sunkbd));
240 init_input_dev(&sunkbd->dev);
241 init_waitqueue_head(&sunkbd->wait);
243 sunkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_SND) | BIT(EV_REP);
244 sunkbd->dev.ledbit[0] = BIT(LED_CAPSL) | BIT(LED_COMPOSE) | BIT(LED_SCROLLL) | BIT(LED_NUML);
245 sunkbd->dev.sndbit[0] = BIT(SND_CLICK) | BIT(SND_BELL);
247 sunkbd->serio = serio;
249 INIT_WORK(&sunkbd->tq, sunkbd_reinit, sunkbd);
251 sunkbd->dev.keycode = sunkbd->keycode;
252 sunkbd->dev.keycodesize = sizeof(unsigned char);
253 sunkbd->dev.keycodemax = ARRAY_SIZE(sunkbd_keycode);
255 sunkbd->dev.event = sunkbd_event;
256 sunkbd->dev.private = sunkbd;
258 serio->private = sunkbd;
260 if (serio_open(serio, dev)) {
265 if (sunkbd_initialize(sunkbd) < 0) {
271 sprintf(sunkbd->name, "Sun Type %d keyboard", sunkbd->type);
273 memcpy(sunkbd->keycode, sunkbd_keycode, sizeof(sunkbd->keycode));
274 for (i = 0; i < 128; i++)
275 set_bit(sunkbd->keycode[i], sunkbd->dev.keybit);
276 clear_bit(0, sunkbd->dev.keybit);
278 sprintf(sunkbd->phys, "%s/input0", serio->phys);
280 sunkbd->dev.name = sunkbd->name;
281 sunkbd->dev.phys = sunkbd->phys;
282 sunkbd->dev.id.bustype = BUS_RS232;
283 sunkbd->dev.id.vendor = SERIO_SUNKBD;
284 sunkbd->dev.id.product = sunkbd->type;
285 sunkbd->dev.id.version = 0x0100;
287 input_register_device(&sunkbd->dev);
289 printk(KERN_INFO "input: %s on %s\n", sunkbd->name, serio->phys);
293 * sunkbd_disconnect() unregisters and closes behind us.
296 static void sunkbd_disconnect(struct serio *serio)
298 struct sunkbd *sunkbd = serio->private;
299 input_unregister_device(&sunkbd->dev);
304 static struct serio_dev sunkbd_dev = {
305 .interrupt = sunkbd_interrupt,
306 .connect = sunkbd_connect,
307 .disconnect = sunkbd_disconnect
311 * The functions for insering/removing us as a module.
314 int __init sunkbd_init(void)
316 serio_register_device(&sunkbd_dev);
320 void __exit sunkbd_exit(void)
322 serio_unregister_device(&sunkbd_dev);
325 module_init(sunkbd_init);
326 module_exit(sunkbd_exit);