4 * Copyright (c) 2005 Michael Schmitz
6 * Based on amikbd.c, which is
8 * Copyright (c) 2000-2001 Vojtech Pavlik
10 * Based on the work of:
15 * Atari keyboard driver for Linux/m68k
17 * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
18 * (the keyboard ACIA also handles the mouse and joystick data, and the keyboard
19 * interrupt is shared with the MIDI ACIA so MIDI data also get handled there).
20 * This driver only deals with handing key events off to the input layer.
24 * This program is free software; you can redistribute it and/or modify
25 * it under the terms of the GNU General Public License as published by
26 * the Free Software Foundation; either version 2 of the License, or
27 * (at your option) any later version.
29 * This program is distributed in the hope that it will be useful,
30 * but WITHOUT ANY WARRANTY; without even the implied warranty of
31 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
32 * GNU General Public License for more details.
34 * You should have received a copy of the GNU General Public License
35 * along with this program; if not, write to the Free Software
36 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
39 #include <linux/module.h>
40 #include <linux/init.h>
41 #include <linux/input.h>
42 #include <linux/delay.h>
43 #include <linux/interrupt.h>
45 #include <asm/atariints.h>
46 #include <asm/atarihw.h>
47 #include <asm/atarikb.h>
50 MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
51 MODULE_DESCRIPTION("Atari keyboard driver");
52 MODULE_LICENSE("GPL");
78 static unsigned char atakbd_keycode[0x73] = { /* American layout */
104 [26] = KEY_LEFTBRACE,
105 [27] = KEY_RIGHTBRACE,
117 [39] = KEY_SEMICOLON,
118 [40] = KEY_APOSTROPHE,
120 [42] = KEY_LEFTSHIFT,
121 [43] = KEY_BACKSLASH,
132 [54] = KEY_RIGHTSHIFT,
133 [55] = KEY_KPASTERISK,
159 [99] = KEY_KPLEFTPAREN,
160 [100] = KEY_KPRIGHTPAREN,
162 [102] = KEY_KPASTERISK,
177 static struct input_dev *atakbd_dev;
179 static void atakbd_interrupt(unsigned char scancode, char down)
182 if (scancode < 0x73) { /* scancodes < 0xf3 are keys */
184 // report raw events here?
186 scancode = atakbd_keycode[scancode];
188 input_report_key(atakbd_dev, scancode, down);
189 input_sync(atakbd_dev);
190 } else /* scancodes >= 0xf3 are mouse data, most likely */
191 printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);
196 static int __init atakbd_init(void)
200 if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
203 // need to init core driver if not already done so
204 error = atari_keyb_init();
208 atakbd_dev = input_allocate_device();
212 atakbd_dev->name = "Atari Keyboard";
213 atakbd_dev->phys = "atakbd/input0";
214 atakbd_dev->id.bustype = BUS_HOST;
215 atakbd_dev->id.vendor = 0x0001;
216 atakbd_dev->id.product = 0x0001;
217 atakbd_dev->id.version = 0x0100;
219 atakbd_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
220 atakbd_dev->keycode = atakbd_keycode;
221 atakbd_dev->keycodesize = sizeof(unsigned char);
222 atakbd_dev->keycodemax = ARRAY_SIZE(atakbd_keycode);
224 for (i = 1; i < 0x72; i++) {
225 set_bit(atakbd_keycode[i], atakbd_dev->keybit);
229 error = input_register_device(atakbd_dev);
231 input_free_device(atakbd_dev);
235 atari_input_keyboard_interrupt_hook = atakbd_interrupt;
240 static void __exit atakbd_exit(void)
242 atari_input_keyboard_interrupt_hook = NULL;
243 input_unregister_device(atakbd_dev);
246 module_init(atakbd_init);
247 module_exit(atakbd_exit);