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3923 svoboda 1
/*
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 * Copyright (c) 2009 Jiri Svoboda
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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3924 svoboda 29
/** @addtogroup kbd_ctl
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 * @ingroup kbd
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 * @{
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 */
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/**
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 * @file
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 * @brief   PC keyboard controller driver.
3924 svoboda 36
 */
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#include <kbd.h>
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#include <kbd/kbd.h>
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#include <kbd/keycode.h>
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#include <kbd_ctl.h>
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3942 svoboda 43
enum dec_state {
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    ds_s,
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    ds_e
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};
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static enum dec_state ds = ds_s;
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3942 svoboda 50
static int scanmap_simple[] = {
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    [0x29] = KC_BACKTICK,
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    [0x02] = KC_1,
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    [0x03] = KC_2,
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    [0x04] = KC_3,
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    [0x05] = KC_4,
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    [0x06] = KC_5,
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    [0x07] = KC_6,
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    [0x08] = KC_7,
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    [0x09] = KC_8,
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    [0x0a] = KC_9,
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    [0x0b] = KC_0,
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    [0x0c] = KC_MINUS,
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    [0x0d] = KC_EQUALS,
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    [0x0e] = KC_BACKSPACE,
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    [0x0f] = KC_TAB,
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    [0x10] = KC_Q,
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    [0x11] = KC_W,
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    [0x12] = KC_E,
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    [0x13] = KC_R,
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    [0x14] = KC_T,
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    [0x15] = KC_Y,
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    [0x16] = KC_U,
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    [0x17] = KC_I,
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    [0x18] = KC_O,
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    [0x19] = KC_P,
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    [0x1a] = KC_LBRACKET,
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    [0x1b] = KC_RBRACKET,
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    [0x3a] = KC_CAPS_LOCK,
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    [0x1e] = KC_A,
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    [0x1f] = KC_S,
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    [0x20] = KC_D,
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    [0x21] = KC_F,
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    [0x22] = KC_G,
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    [0x23] = KC_H,
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    [0x24] = KC_J,
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    [0x25] = KC_K,
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    [0x26] = KC_L,
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    [0x27] = KC_SEMICOLON,
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    [0x28] = KC_QUOTE,
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    [0x2b] = KC_BACKSLASH,
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    [0x2a] = KC_LSHIFT,
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    [0x2c] = KC_Z,
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    [0x2d] = KC_X,
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    [0x2e] = KC_C,
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    [0x2f] = KC_V,
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    [0x30] = KC_B,
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    [0x31] = KC_N,
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    [0x32] = KC_M,
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    [0x33] = KC_COMMA,
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    [0x34] = KC_PERIOD,
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    [0x35] = KC_SLASH,
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    [0x36] = KC_RSHIFT,
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    [0x1d] = KC_LCTRL,
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    [0x38] = KC_LALT,
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    [0x39] = KC_SPACE,
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    [0x01] = KC_ESCAPE,
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    [0x3b] = KC_F1,
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    [0x3c] = KC_F2,
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    [0x3d] = KC_F3,
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    [0x3e] = KC_F4,
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    [0x3f] = KC_F5,
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    [0x40] = KC_F6,
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    [0x41] = KC_F7,
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    [0x42] = KC_F8,
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    [0x43] = KC_F9,
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    [0x44] = KC_F10,
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    [0x57] = KC_F11,
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    [0x58] = KC_F12,
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    [0x46] = KC_SCROLL_LOCK,
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    [0x1c] = KC_ENTER,
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    [0x45] = KC_NUM_LOCK,
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    [0x37] = KC_NTIMES,
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    [0x4a] = KC_NMINUS,
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    [0x4e] = KC_NPLUS,
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    [0x47] = KC_N7,
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    [0x48] = KC_N8,
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    [0x49] = KC_N9,
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    [0x4b] = KC_N4,
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    [0x4c] = KC_N5,
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    [0x4d] = KC_N6,
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    [0x4f] = KC_N1,
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    [0x50] = KC_N2,
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    [0x51] = KC_N3,
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    [0x52] = KC_N0,
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    [0x53] = KC_NPERIOD
3923 svoboda 157
};
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static int scanmap_e0[] = {
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    [0x38] = KC_RALT,
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    [0x1d] = KC_RSHIFT,
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    [0x37] = KC_PRTSCR,
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    [0x52] = KC_INSERT,
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    [0x47] = KC_HOME,
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    [0x49] = KC_PAGE_UP,
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    [0x53] = KC_DELETE,
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    [0x4f] = KC_END,
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    [0x51] = KC_PAGE_DOWN,
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    [0x48] = KC_UP,
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    [0x4b] = KC_LEFT,
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    [0x50] = KC_DOWN,
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    [0x4d] = KC_RIGHT,
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    [0x35] = KC_NSLASH,
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    [0x1c] = KC_NENTER
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};
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void kbd_ctl_parse_scancode(int scancode)
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{
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    kbd_ev_type_t type;
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    unsigned int key;
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    int *map;
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    size_t map_length;
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    if (scancode == 0xe0) {
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        ds = ds_e;
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        return;
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    }
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    switch (ds) {
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    case ds_s:
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        map = scanmap_simple;
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        map_length = sizeof(scanmap_simple) / sizeof(int);
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        break;
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    case ds_e:
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        map = scanmap_e0;
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        map_length = sizeof(scanmap_e0) / sizeof(int);
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        break;
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    }
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    ds = ds_s;
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    if (scancode & 0x80) {
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        scancode &= ~0x80;
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        type = KE_RELEASE;
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    } else {
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        type = KE_PRESS;
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    }
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    if (scancode < 0 || scancode >= map_length)
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        return;
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    key = map[scancode];
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    if (key != 0)
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        kbd_push_ev(type, key);
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}
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3923 svoboda 223
/**
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 * @}
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 */