1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
188 lines
4.7 KiB
C
188 lines
4.7 KiB
C
/*
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* $Id: xtkbd.c,v 1.11 2001/09/25 10:12:07 vojtech Exp $
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*
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* Copyright (c) 1999-2001 Vojtech Pavlik
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*/
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/*
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* XT keyboard driver for Linux
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Should you need to contact me, the author, you can do so either by
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* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
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*/
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/input.h>
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#include <linux/init.h>
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#include <linux/serio.h>
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#define DRIVER_DESC "XT keyboard driver"
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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#define XTKBD_EMUL0 0xe0
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#define XTKBD_EMUL1 0xe1
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#define XTKBD_KEY 0x7f
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#define XTKBD_RELEASE 0x80
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static unsigned char xtkbd_keycode[256] = {
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
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64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
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80, 81, 82, 83, 0, 0, 0, 87, 88, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 87, 88, 0, 0, 0, 0,110,111,103,108,105,
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106
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};
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static char *xtkbd_name = "XT Keyboard";
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struct xtkbd {
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unsigned char keycode[256];
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struct input_dev dev;
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struct serio *serio;
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char phys[32];
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};
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static irqreturn_t xtkbd_interrupt(struct serio *serio,
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unsigned char data, unsigned int flags, struct pt_regs *regs)
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{
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struct xtkbd *xtkbd = serio_get_drvdata(serio);
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switch (data) {
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case XTKBD_EMUL0:
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case XTKBD_EMUL1:
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break;
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default:
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if (xtkbd->keycode[data & XTKBD_KEY]) {
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input_regs(&xtkbd->dev, regs);
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input_report_key(&xtkbd->dev, xtkbd->keycode[data & XTKBD_KEY], !(data & XTKBD_RELEASE));
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input_sync(&xtkbd->dev);
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} else {
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printk(KERN_WARNING "xtkbd.c: Unknown key (scancode %#x) %s.\n",
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data & XTKBD_KEY, data & XTKBD_RELEASE ? "released" : "pressed");
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}
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}
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return IRQ_HANDLED;
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}
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static int xtkbd_connect(struct serio *serio, struct serio_driver *drv)
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{
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struct xtkbd *xtkbd;
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int i;
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int err;
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if (!(xtkbd = kmalloc(sizeof(struct xtkbd), GFP_KERNEL)))
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return -ENOMEM;
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memset(xtkbd, 0, sizeof(struct xtkbd));
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xtkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
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xtkbd->serio = serio;
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init_input_dev(&xtkbd->dev);
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xtkbd->dev.keycode = xtkbd->keycode;
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xtkbd->dev.keycodesize = sizeof(unsigned char);
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xtkbd->dev.keycodemax = ARRAY_SIZE(xtkbd_keycode);
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xtkbd->dev.private = xtkbd;
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serio_set_drvdata(serio, xtkbd);
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err = serio_open(serio, drv);
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if (err) {
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serio_set_drvdata(serio, NULL);
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kfree(xtkbd);
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return err;
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}
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memcpy(xtkbd->keycode, xtkbd_keycode, sizeof(xtkbd->keycode));
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for (i = 0; i < 255; i++)
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set_bit(xtkbd->keycode[i], xtkbd->dev.keybit);
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clear_bit(0, xtkbd->dev.keybit);
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sprintf(xtkbd->phys, "%s/input0", serio->phys);
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xtkbd->dev.name = xtkbd_name;
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xtkbd->dev.phys = xtkbd->phys;
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xtkbd->dev.id.bustype = BUS_XTKBD;
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xtkbd->dev.id.vendor = 0x0001;
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xtkbd->dev.id.product = 0x0001;
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xtkbd->dev.id.version = 0x0100;
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xtkbd->dev.dev = &serio->dev;
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input_register_device(&xtkbd->dev);
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printk(KERN_INFO "input: %s on %s\n", xtkbd_name, serio->phys);
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return 0;
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}
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static void xtkbd_disconnect(struct serio *serio)
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{
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struct xtkbd *xtkbd = serio_get_drvdata(serio);
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input_unregister_device(&xtkbd->dev);
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serio_close(serio);
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serio_set_drvdata(serio, NULL);
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kfree(xtkbd);
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}
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static struct serio_device_id xtkbd_serio_ids[] = {
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{
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.type = SERIO_XT,
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.proto = SERIO_ANY,
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.id = SERIO_ANY,
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.extra = SERIO_ANY,
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},
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{ 0 }
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};
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MODULE_DEVICE_TABLE(serio, xtkbd_serio_ids);
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static struct serio_driver xtkbd_drv = {
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.driver = {
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.name = "xtkbd",
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},
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.description = DRIVER_DESC,
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.id_table = xtkbd_serio_ids,
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.interrupt = xtkbd_interrupt,
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.connect = xtkbd_connect,
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.disconnect = xtkbd_disconnect,
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};
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static int __init xtkbd_init(void)
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{
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serio_register_driver(&xtkbd_drv);
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return 0;
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}
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static void __exit xtkbd_exit(void)
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{
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serio_unregister_driver(&xtkbd_drv);
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}
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module_init(xtkbd_init);
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module_exit(xtkbd_exit);
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