arch/ppc32/src/kbd.c

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/*
 * Copyright (C) 2006 Martin Decky
 * 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>

irq_cmd_t cuda_cmds[1] = {
        { CMD_PPC32_GETCHAR, 0, 0, 2 }
};

irq_code_t cuda_kbd = {
        1,
        cuda_cmds
};


#define SPECIAL         255
#define FUNCTION_KEYS 0x100


static int lchars[0x80] = {
        'a',
        's',
        'd',
        'f',
        'h',
        'g',
        'z',
        'x',
        'c',
        'v', 
        SPECIAL,
        'b',
        'q',
        'w',
        'e',
        'r',
        'y',
        't',
        '1',
        '2',
        '3',
        '4',
        '6',
        '5',
        '=',
        '9',
        '7',
        '-',
        '8',
        '0',
        ']',
        'o',
        'u',
        '[',
        'i', 
        'p',
        '\n',                 /* Enter */
        'l',
        'j',
        '\'',
        'k',
        ';',
        '\\',
        ',',
        '/',
        'n',
        'm',
        '.',
        '\t',                 /* Tab */
        ' ',
        '`',
        '\b',                 /* Backspace */
        SPECIAL,
        SPECIAL,              /* Escape */
        SPECIAL,              /* Ctrl */
        SPECIAL,              /* Alt */
        SPECIAL,              /* Shift */
        SPECIAL,              /* Caps-Lock */
        SPECIAL,              /* RAlt */
        SPECIAL,              /* Left */
        SPECIAL,              /* Right */
        SPECIAL,              /* Down */
        SPECIAL,              /* Up */
        SPECIAL, 
        SPECIAL,
        '.',                  /* Keypad . */
        SPECIAL, 
        '*',                  /* Keypad * */
        SPECIAL,
        '+',                  /* Keypad + */
        SPECIAL,
        SPECIAL,              /* NumLock */
        SPECIAL,
        SPECIAL,
        SPECIAL,
        '/',                  /* Keypad / */
        '\n',                 /* Keypad Enter */
        SPECIAL,
        '-',                  /* Keypad - */
        SPECIAL,
        SPECIAL,
        SPECIAL,
        '0',                  /* Keypad 0 */
        '1',                  /* Keypad 1 */
        '2',                  /* Keypad 2 */
        '3',                  /* Keypad 3 */
        '4',                  /* Keypad 4 */
        '5',                  /* Keypad 5 */
        '6',                  /* Keypad 6 */
        '7',                  /* Keypad 7 */
        SPECIAL,
        '8',                  /* Keypad 8 */
        '9',                  /* Keypad 9 */
        SPECIAL,
        SPECIAL,
        SPECIAL,
        (FUNCTION_KEYS | 5),  /* F5 */
        (FUNCTION_KEYS | 6),  /* F6 */
        (FUNCTION_KEYS | 7),  /* F7 */
        (FUNCTION_KEYS | 3),  /* F3 */
        (FUNCTION_KEYS | 8),  /* F8 */
        (FUNCTION_KEYS | 9),  /* F9 */
        SPECIAL,
        (FUNCTION_KEYS | 11), /* F11 */
        SPECIAL,
        (FUNCTION_KEYS | 13), /* F13 */
        SPECIAL,
        SPECIAL,              /* ScrollLock */
        SPECIAL,
        (FUNCTION_KEYS | 10), /* F10 */
        SPECIAL,
        (FUNCTION_KEYS | 12), /* F12 */
        SPECIAL,
        SPECIAL,              /* Pause */
        SPECIAL,              /* Insert */
        SPECIAL,              /* Home */
        SPECIAL,              /* PageUp */
        SPECIAL,              /* Delete */
        (FUNCTION_KEYS | 4),  /* F4 */
        SPECIAL,              /* End */
        (FUNCTION_KEYS | 2),  /* F2 */
        SPECIAL,              /* PageDown */
        (FUNCTION_KEYS | 1)   /* F1 */
};


int kbd_arch_init(void)
{
        return ipc_register_irq(sysinfo_value("cuda.irq"), &cuda_kbd);
}


int kbd_arch_process(keybuffer_t *keybuffer, ipc_call_t *call) 
{
        int param = IPC_GET_ARG2(*call);

        if (param != -1) {
                uint8_t scancode = (uint8_t) param;
        
                if ((scancode & 0x80) != 0x80) {
                        int key = lchars[scancode & 0x7f];
                        
                        if (key != SPECIAL)
                                keybuffer_push(keybuffer, key);
                }
        }
        
        return 1;
}

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