arch/ia64/src/kbd.c

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/*
 * Copyright (C) 2006 Josef Cejka
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <arch/kbd.h>
#include <ipc/ipc.h>
#include <sysinfo.h>
#include <kbd.h>
#include <keys.h>

#define KEY_F1 0x504f1b
#define KEY_F2 0x514f1b
#define KEY_F3 0x524f1b
#define KEY_F4 0x534f1b
#define KEY_F5 0x7e35315b1b
#define KEY_F6 0x7e37315b1b
#define KEY_F7 0x7e38315b1b
#define KEY_F8 0x7e39315b1b
#define KEY_F9 0x7e30325b1b
#define KEY_F10 0x7e31325b1b
#define KEY_F11 0x7e33325b1b
#define KEY_F12 0x7e34325b1b


#define FUNCTION_KEYS 0x100

irq_cmd_t ski_cmds[1] = {
        { CMD_IA64_GETCHAR, 0, 0, 2 }
};

irq_code_t ski_kbd = {
        1,
        ski_cmds
};

int kbd_arch_init(void)
{
        if (sysinfo_value("kbd")) {
                ipc_register_irq(sysinfo_value("kbd.irq"), &ski_kbd);
                return 0;
        }       
        return 1;
}

/*
* Please preserve this code (it can be used to determine scancodes)
*
int to_hex(int v) 
{
    return "0123456789ABCDEF"[v];
}
*/

int kbd_arch_process(keybuffer_t *keybuffer, ipc_call_t *call) 
{
        static unsigned long long buf=0;
        static int count=0;     
        static int esc_count=0;
        int scan_code = IPC_GET_ARG2(*call);


        /*
         * Please preserve this code (it can be used to determine scancodes)
         */
        //keybuffer_push(keybuffer, to_hex((scan_code>>4)&0xf));
        //keybuffer_push(keybuffer, to_hex(scan_code&0xf));
        //keybuffer_push(keybuffer, ' ');
        //keybuffer_push(keybuffer, ' ');
        //*/
        
        if (scan_code) {
                buf |= (unsigned long long) scan_code<<(8*(count++));
        } else {
                

                if (buf == 0x1b) {
                        esc_count++;
                        if (esc_count == 3) {
                                __SYSCALL0(SYS_DEBUG_ENABLE_CONSOLE);
                        }       
                } else {
                        esc_count = 0;
                }
        
                if (!(buf & 0xff00)) {
                        keybuffer_push(keybuffer, buf);
                } else {
                        switch (buf) {
                                case KEY_F1:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 1);
                                        break;
                                case KEY_F2:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 2);
                                        break;
                                case KEY_F3:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 3);
                                        break;
                                case KEY_F4:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 4);
                                        break;
                                case KEY_F5:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 5);
                                        break;
                                case KEY_F6:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 6);
                                        break;
                                case KEY_F7:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 7);
                                        break;
                                case KEY_F8:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 8);
                                        break;
                                case KEY_F9:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 9);
                                        break;
                                case KEY_F10:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 10);
                                        break;
                                case KEY_F11:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 11);
                                        break;
                                case KEY_F12:
                                        keybuffer_push(keybuffer, FUNCTION_KEYS | 12);
                                        break;
                        }
                }
                buf = count = 0;
        }

        return  1;
}

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