171 lines
4.5 KiB
C
171 lines
4.5 KiB
C
/*
|
|
* Copyright (c) 1999-2001 Vojtech Pavlik
|
|
*/
|
|
|
|
/*
|
|
* XT keyboard driver for Linux
|
|
*/
|
|
|
|
/*
|
|
* 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 <vojtech@ucw.cz>, or by paper mail:
|
|
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
|
|
*/
|
|
|
|
#include <linux/slab.h>
|
|
#include <linux/module.h>
|
|
#include <linux/input.h>
|
|
#include <linux/serio.h>
|
|
|
|
#define DRIVER_DESC "XT keyboard driver"
|
|
|
|
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|
|
|
|
#define XTKBD_EMUL0 0xe0
|
|
#define XTKBD_EMUL1 0xe1
|
|
#define XTKBD_KEY 0x7f
|
|
#define XTKBD_RELEASE 0x80
|
|
|
|
static unsigned char xtkbd_keycode[256] = {
|
|
0, 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, 0, 0, 0, 87, 88, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 87, 88, 0, 0, 0, 0,110,111,103,108,105,
|
|
106
|
|
};
|
|
|
|
struct xtkbd {
|
|
unsigned char keycode[256];
|
|
struct input_dev *dev;
|
|
struct serio *serio;
|
|
char phys[32];
|
|
};
|
|
|
|
static irqreturn_t xtkbd_interrupt(struct serio *serio,
|
|
unsigned char data, unsigned int flags)
|
|
{
|
|
struct xtkbd *xtkbd = serio_get_drvdata(serio);
|
|
|
|
switch (data) {
|
|
case XTKBD_EMUL0:
|
|
case XTKBD_EMUL1:
|
|
break;
|
|
default:
|
|
|
|
if (xtkbd->keycode[data & XTKBD_KEY]) {
|
|
input_report_key(xtkbd->dev, xtkbd->keycode[data & XTKBD_KEY], !(data & XTKBD_RELEASE));
|
|
input_sync(xtkbd->dev);
|
|
} else {
|
|
printk(KERN_WARNING "xtkbd.c: Unknown key (scancode %#x) %s.\n",
|
|
data & XTKBD_KEY, data & XTKBD_RELEASE ? "released" : "pressed");
|
|
}
|
|
}
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int xtkbd_connect(struct serio *serio, struct serio_driver *drv)
|
|
{
|
|
struct xtkbd *xtkbd;
|
|
struct input_dev *input_dev;
|
|
int err = -ENOMEM;
|
|
int i;
|
|
|
|
xtkbd = kmalloc(sizeof(struct xtkbd), GFP_KERNEL);
|
|
input_dev = input_allocate_device();
|
|
if (!xtkbd || !input_dev)
|
|
goto fail1;
|
|
|
|
xtkbd->serio = serio;
|
|
xtkbd->dev = input_dev;
|
|
snprintf(xtkbd->phys, sizeof(xtkbd->phys), "%s/input0", serio->phys);
|
|
memcpy(xtkbd->keycode, xtkbd_keycode, sizeof(xtkbd->keycode));
|
|
|
|
input_dev->name = "XT Keyboard";
|
|
input_dev->phys = xtkbd->phys;
|
|
input_dev->id.bustype = BUS_XTKBD;
|
|
input_dev->id.vendor = 0x0001;
|
|
input_dev->id.product = 0x0001;
|
|
input_dev->id.version = 0x0100;
|
|
input_dev->dev.parent = &serio->dev;
|
|
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
|
|
input_dev->keycode = xtkbd->keycode;
|
|
input_dev->keycodesize = sizeof(unsigned char);
|
|
input_dev->keycodemax = ARRAY_SIZE(xtkbd_keycode);
|
|
|
|
for (i = 0; i < 255; i++)
|
|
set_bit(xtkbd->keycode[i], input_dev->keybit);
|
|
clear_bit(0, input_dev->keybit);
|
|
|
|
serio_set_drvdata(serio, xtkbd);
|
|
|
|
err = serio_open(serio, drv);
|
|
if (err)
|
|
goto fail2;
|
|
|
|
err = input_register_device(xtkbd->dev);
|
|
if (err)
|
|
goto fail3;
|
|
|
|
return 0;
|
|
|
|
fail3: serio_close(serio);
|
|
fail2: serio_set_drvdata(serio, NULL);
|
|
fail1: input_free_device(input_dev);
|
|
kfree(xtkbd);
|
|
return err;
|
|
}
|
|
|
|
static void xtkbd_disconnect(struct serio *serio)
|
|
{
|
|
struct xtkbd *xtkbd = serio_get_drvdata(serio);
|
|
|
|
serio_close(serio);
|
|
serio_set_drvdata(serio, NULL);
|
|
input_unregister_device(xtkbd->dev);
|
|
kfree(xtkbd);
|
|
}
|
|
|
|
static struct serio_device_id xtkbd_serio_ids[] = {
|
|
{
|
|
.type = SERIO_XT,
|
|
.proto = SERIO_ANY,
|
|
.id = SERIO_ANY,
|
|
.extra = SERIO_ANY,
|
|
},
|
|
{ 0 }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(serio, xtkbd_serio_ids);
|
|
|
|
static struct serio_driver xtkbd_drv = {
|
|
.driver = {
|
|
.name = "xtkbd",
|
|
},
|
|
.description = DRIVER_DESC,
|
|
.id_table = xtkbd_serio_ids,
|
|
.interrupt = xtkbd_interrupt,
|
|
.connect = xtkbd_connect,
|
|
.disconnect = xtkbd_disconnect,
|
|
};
|
|
|
|
module_serio_driver(xtkbd_drv);
|