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/*
* $Id: keybdev.c,v 1.3 2000/05/28 17:31:36 vojtech Exp $
*
* Copyright (c) 1999-2000 Vojtech Pavlik
*
* Input driver to keyboard driver binding.
*
* Sponsored by SuSE
*/
/*
* 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@suse.cz>, or by paper mail:
* Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
*/
#include <linux/config.h>
#include <linux/kbd_ll.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/tty.h>
#include <linux/module.h>
#include <linux/kbd_kern.h>
#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(__alpha__) || defined(__mips__) || defined(CONFIG_SPARC64)
static int x86_sysrq_alt = 0;
#ifdef CONFIG_SPARC64
static int sparc_l1_a_state = 0;
extern void batten_down_hatches(void);
#endif
static unsigned short x86_keycodes[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, 43, 85, 86, 87, 88,115,119,120,121,375,123, 90,
284,285,309,298,312, 91,327,328,329,331,333,335,336,337,338,339,
367,294,293,286,350, 92,334,512,116,377,109,111,373,347,348,349,
360, 93, 94, 95, 98,376,100,101,357,316,354,304,289,102,351,355,
103,104,105,275,281,272,306,106,274,107,288,364,358,363,362,361,
291,108,381,290,287,292,279,305,280, 99,112,257,258,113,270,114,
118,117,125,374,379,259,260,261,262,263,264,265,266,267,268,269,
271,273,276,277,278,282,283,295,296,297,299,300,301,302,303,307,
308,310,313,314,315,317,318,319,320,321,322,323,324,325,326,330,
332,340,341,342,343,344,345,346,356,359,365,368,369,370,371,372 };
static int emulate_raw(unsigned int keycode, int down)
{
if (keycode > 255 || !x86_keycodes[keycode])
return -1;
if (keycode == KEY_PAUSE) {
handle_scancode(0xe1, 1);
handle_scancode(0x1d, down);
handle_scancode(0x45, down);
return 0;
}
if (keycode == KEY_SYSRQ && x86_sysrq_alt) {
handle_scancode(0x54, down);
return 0;
}
#ifdef CONFIG_SPARC64
if (keycode == KEY_A && sparc_l1_a_state) {
sparc_l1_a_state = 0;
batten_down_hatches();
}
#endif
if (x86_keycodes[keycode] & 0x100)
handle_scancode(0xe0, 1);
handle_scancode(x86_keycodes[keycode] & 0x7f, down);
if (keycode == KEY_SYSRQ) {
handle_scancode(0xe0, 1);
handle_scancode(0x37, down);
}
if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT)
x86_sysrq_alt = down;
#ifdef CONFIG_SPARC64
if (keycode == KEY_STOP)
sparc_l1_a_state = down;
#endif
return 0;
}
#elif defined(CONFIG_ADB_KEYBOARD)
static unsigned char mac_keycodes[128] =
{ 0, 53, 18, 19, 20, 21, 23, 22, 26, 28, 25, 29, 27, 24, 51, 48,
12, 13, 14, 15, 17, 16, 32, 34, 31, 35, 33, 30, 36, 54,128, 1,
2, 3, 5, 4, 38, 40, 37, 41, 39, 50, 56, 42, 6, 7, 8, 9,
11, 45, 46, 43, 47, 44,123, 67, 58, 49, 57,122,120, 99,118, 96,
97, 98,100,101,109, 71,107, 89, 91, 92, 78, 86, 87, 88, 69, 83,
84, 85, 82, 65, 42, 0, 10,103,111, 0, 0, 0, 0, 0, 0, 0,
76,125, 75,105,124, 0,115, 62,116, 59, 60,119, 61,121,114,117,
0, 0, 0, 0,127, 81, 0,113, 0, 0, 0, 0, 0, 55, 55 };
static int emulate_raw(unsigned int keycode, int down)
{
if (keycode > 127 || !mac_keycodes[keycode])
return -1;
handle_scancode(mac_keycodes[keycode] & 0x7f, down);
return 0;
}
#endif
static struct input_handler keybdev_handler;
void keybdev_ledfunc(unsigned int led)
{
struct input_handle *handle;
for (handle = keybdev_handler.handle; handle; handle = handle->hnext) {
input_event(handle->dev, EV_LED, LED_SCROLLL, !!(led & 0x01));
input_event(handle->dev, EV_LED, LED_NUML, !!(led & 0x02));
input_event(handle->dev, EV_LED, LED_CAPSL, !!(led & 0x04));
}
}
void keybdev_event(struct input_handle *handle, unsigned int type, unsigned int code, int down)
{
if (type != EV_KEY) return;
if (emulate_raw(code, down))
printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", code);
tasklet_schedule(&keyboard_tasklet);
}
static struct input_handle *keybdev_connect(struct input_handler *handler, struct input_dev *dev)
{
struct input_handle *handle;
int i;
if (!test_bit(EV_KEY, dev->evbit))
return NULL;
for (i = KEY_RESERVED; i < BTN_MISC; i++)
if (test_bit(i, dev->keybit)) break;
if (i == BTN_MISC)
return NULL;
if (!(handle = kmalloc(sizeof(struct input_handle), GFP_KERNEL)))
return NULL;
memset(handle, 0, sizeof(struct input_handle));
handle->dev = dev;
handle->handler = handler;
input_open_device(handle);
printk(KERN_INFO "keybdev.c: Adding keyboard: input%d\n", dev->number);
return handle;
}
static void keybdev_disconnect(struct input_handle *handle)
{
printk(KERN_INFO "keybdev.c: Removing keyboard: input%d\n", handle->dev->number);
input_close_device(handle);
kfree(handle);
}
static struct input_handler keybdev_handler = {
event: keybdev_event,
connect: keybdev_connect,
disconnect: keybdev_disconnect,
};
static int __init keybdev_init(void)
{
input_register_handler(&keybdev_handler);
kbd_ledfunc = keybdev_ledfunc;
return 0;
}
static void __exit keybdev_exit(void)
{
kbd_ledfunc = NULL;
input_unregister_handler(&keybdev_handler);
}
module_init(keybdev_init);
module_exit(keybdev_exit);
MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
MODULE_DESCRIPTION("Input driver to keyboard driver binding");
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