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/*
* atakbd.c
*
* Copyright (c) 2005 Michael Schmitz
*
* Based on amikbd.c, which is
*
* Copyright (c) 2000-2001 Vojtech Pavlik
*
* Based on the work of:
* Hamish Macdonald
*/
/*
* Atari keyboard driver for Linux/m68k
*
* The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
* (the keyboard ACIA also handles the mouse and joystick data, and the keyboard
* interrupt is shared with the MIDI ACIA so MIDI data also get handled there).
* This driver only deals with handing key events off to the input layer.
*/
/*
* 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/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <asm/atariints.h>
#include <asm/atarihw.h>
#include <asm/atarikb.h>
#include <asm/irq.h>
MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
MODULE_DESCRIPTION("Atari keyboard driver");
MODULE_LICENSE("GPL");
static unsigned char atakbd_keycode[0x72];
static struct input_dev *atakbd_dev;
static void atakbd_interrupt(unsigned char scancode, char down)
{
if (scancode < 0x72) { /* scancodes < 0xf2 are keys */
// report raw events here?
scancode = atakbd_keycode[scancode];
if (scancode == KEY_CAPSLOCK) { /* CapsLock is a toggle switch key on Amiga */
input_report_key(atakbd_dev, scancode, 1);
input_report_key(atakbd_dev, scancode, 0);
input_sync(atakbd_dev);
} else {
input_report_key(atakbd_dev, scancode, down);
input_sync(atakbd_dev);
}
} else /* scancodes >= 0xf2 are mouse data, most likely */
printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);
return;
}
static int __init atakbd_init(void)
{
int i;
if (!ATARIHW_PRESENT(ST_MFP))
return -EIO;
// TODO: request_mem_region if not done in arch code
if (!(atakbd_dev = input_allocate_device()))
return -ENOMEM;
// need to init core driver if not already done so
if (atari_keyb_init())
return -ENODEV;
atakbd_dev->name = "Atari Keyboard";
atakbd_dev->phys = "atakbd/input0";
atakbd_dev->id.bustype = BUS_ATARI;
atakbd_dev->id.vendor = 0x0001;
atakbd_dev->id.product = 0x0001;
atakbd_dev->id.version = 0x0100;
atakbd_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
atakbd_dev->keycode = atakbd_keycode;
atakbd_dev->keycodesize = sizeof(unsigned char);
atakbd_dev->keycodemax = ARRAY_SIZE(atakbd_keycode);
for (i = 1; i < 0x72; i++) {
atakbd_keycode[i] = i;
set_bit(atakbd_keycode[i], atakbd_dev->keybit);
}
input_register_device(atakbd_dev);
atari_input_keyboard_interrupt_hook = atakbd_interrupt;
printk(KERN_INFO "input: %s at IKBD ACIA\n", atakbd_dev->name);
return 0;
}
static void __exit atakbd_exit(void)
{
atari_input_keyboard_interrupt_hook = NULL;
input_unregister_device(atakbd_dev);
}
module_init(atakbd_init);
module_exit(atakbd_exit);
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