source: mainline/uspace/srv/kbd/ctl/gxe_fb.c@ 3e5a814

/*
 * Copyright (c) 2009 Jiri Svoboda
 * 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.
 */

/** @addtogroup kbd_ctl
 * @ingroup kbd
 * @{
 */
/**
 * @file
 * @brief       GXEmul framebuffer-mode keyboard controller driver.
 */

#include <kbd.h>
#include <kbd/kbd.h>
#include <kbd/keycode.h>
#include <kbd_ctl.h>

static void parse_ds_start(int scancode);
static void parse_ds_e(int scancode);
static void parse_ds_e1(int scancode);
static void parse_ds_e1a(int scancode);
static void parse_ds_e1b(int scancode);
static void parse_ds_e1c(int scancode);

static void parse_leaf(int scancode, int (*map)[2], size_t map_length);

enum dec_state {
        ds_start,
        ds_e,
        ds_e1,
        ds_e1a,
        ds_e1b,
        ds_e1c
};

static int map_start[][2] = {

        [0x60] = { 0, KC_BACKTICK },

        [0x31] = { 0, KC_1 },
        [0x32] = { 0, KC_2 },
        [0x33] = { 0, KC_3 },
        [0x34] = { 0, KC_4 },
        [0x35] = { 0, KC_5 },
        [0x36] = { 0, KC_6 },
        [0x37] = { 0, KC_7 },
        [0x38] = { 0, KC_8 },
        [0x39] = { 0, KC_9 },
        [0x30] = { 0, KC_0 },

        [0x2d] = { 0, KC_MINUS },
        [0x3d] = { 0, KC_EQUALS },
        [0x08] = { 0, KC_BACKSPACE },

        [0x0f] = { 0, KC_TAB },

        [0x71] = { 0, KC_Q },
        [0x77] = { 0, KC_W },
        [0x65] = { 0, KC_E },
        [0x72] = { 0, KC_R },
        [0x74] = { 0, KC_T },
        [0x79] = { 0, KC_Y },
        [0x75] = { 0, KC_U },
        [0x69] = { 0, KC_I },
        [0x6f] = { 0, KC_O },
        [0x70] = { 0, KC_P },

        [0x5b] = { 0, KC_LBRACKET },
        [0x5d] = { 0, KC_RBRACKET },

        [0x61] = { 0, KC_A },
        [0x73] = { 0, KC_S },
        [0x64] = { 0, KC_D },
        [0x66] = { 0, KC_F },
        [0x67] = { 0, KC_G },
        [0x68] = { 0, KC_H },
        [0x6a] = { 0, KC_J },
        [0x6b] = { 0, KC_K },
        [0x6c] = { 0, KC_L },

        [0x3b] = { 0, KC_SEMICOLON },
        [0x27] = { 0, KC_QUOTE },
        [0x5c] = { 0, KC_BACKSLASH },

        [0x7a] = { 0, KC_Z },
        [0x78] = { 0, KC_X },
        [0x63] = { 0, KC_C },
        [0x76] = { 0, KC_V },
        [0x62] = { 0, KC_B },
        [0x6e] = { 0, KC_N },
        [0x6d] = { 0, KC_M },

        [0x2c] = { 0, KC_COMMA },
        [0x2e] = { 0, KC_PERIOD },
        [0x2f] = { 0, KC_SLASH },

        [0x20] = { 0, KC_SPACE },

        [0x1b] = { 0, KC_ESCAPE },

        [0x0a] = { 0, KC_ENTER },
        [0x0d] = { 0, KC_ENTER },

        /* with Shift pressed */

        [0x7e] = { KM_LSHIFT, KC_BACKTICK },

        [0x21] = { KM_LSHIFT, KC_1 },
        [0x40] = { KM_LSHIFT, KC_2 },
        [0x23] = { KM_LSHIFT, KC_3 },
        [0x24] = { KM_LSHIFT, KC_4 },
        [0x25] = { KM_LSHIFT, KC_5 },
        [0x5e] = { KM_LSHIFT, KC_6 },
        [0x26] = { KM_LSHIFT, KC_7 },
        [0x2a] = { KM_LSHIFT, KC_8 },
        [0x28] = { KM_LSHIFT, KC_9 },
        [0x29] = { KM_LSHIFT, KC_0 },

        [0x5f] = { KM_LSHIFT, KC_MINUS },
        [0x2b] = { KM_LSHIFT, KC_EQUALS },

        [0x51] = { KM_LSHIFT, KC_Q },
        [0x57] = { KM_LSHIFT, KC_W },
        [0x45] = { KM_LSHIFT, KC_E },
        [0x52] = { KM_LSHIFT, KC_R },
        [0x54] = { KM_LSHIFT, KC_T },
        [0x59] = { KM_LSHIFT, KC_Y },
        [0x55] = { KM_LSHIFT, KC_U },
        [0x49] = { KM_LSHIFT, KC_I },
        [0x4f] = { KM_LSHIFT, KC_O },
        [0x50] = { KM_LSHIFT, KC_P },

        [0x7b] = { KM_LSHIFT, KC_LBRACKET },
        [0x7d] = { KM_LSHIFT, KC_RBRACKET },

        [0x41] = { KM_LSHIFT, KC_A },
        [0x53] = { KM_LSHIFT, KC_S },
        [0x44] = { KM_LSHIFT, KC_D },
        [0x46] = { KM_LSHIFT, KC_F },
        [0x47] = { KM_LSHIFT, KC_G },
        [0x48] = { KM_LSHIFT, KC_H },
        [0x4a] = { KM_LSHIFT, KC_J },
        [0x4b] = { KM_LSHIFT, KC_K },
        [0x4c] = { KM_LSHIFT, KC_L },

        [0x3a] = { KM_LSHIFT, KC_SEMICOLON },
        [0x22] = { KM_LSHIFT, KC_QUOTE },
        [0x7c] = { KM_LSHIFT, KC_BACKSLASH },

        [0x5a] = { KM_LSHIFT, KC_Z },
        [0x58] = { KM_LSHIFT, KC_X },
        [0x43] = { KM_LSHIFT, KC_C },
        [0x56] = { KM_LSHIFT, KC_V },
        [0x42] = { KM_LSHIFT, KC_B },
        [0x4e] = { KM_LSHIFT, KC_N },
        [0x4d] = { KM_LSHIFT, KC_M },

        [0x3c] = { KM_LSHIFT, KC_COMMA },
        [0x3e] = { KM_LSHIFT, KC_PERIOD },
        [0x3f] = { KM_LSHIFT, KC_SLASH }
};

static int map_e1[][2] =
{
};

static int map_e1a[][2] =
{
        [0x50] = { 0, KC_F1 },
        [0x51] = { 0, KC_F2 },
        [0x52] = { 0, KC_F3 },
        [0x53] = { 0, KC_F4 },
};

static int map_e1b[][2] =
{
        [0x33] = { 0, KC_F5 },
        [0x37] = { 0, KC_F6 },
        [0x38] = { 0, KC_F7 },
        [0x39] = { 0, KC_F8 },
};

static int map_e1c[][2] =
{
        [0x38] = { 0, KC_F9 },
        [0x39] = { 0, KC_F10 },
        [0x33] = { 0, KC_F11 },
        [0x34] = { 0, KC_F12 },
};

static unsigned int mods_keys[][2] = {
        { KM_LSHIFT, KC_LSHIFT },
        { 0, 0 }
};

static enum dec_state ds = ds_start;

void kbd_ctl_parse_scancode(int scancode)
{
        switch (ds) {
        case ds_start:  parse_ds_start(scancode); break;
        case ds_e:      parse_ds_e(scancode); break;
        case ds_e1:     parse_ds_e1(scancode); break;
        case ds_e1a:    parse_ds_e1a(scancode); break;
        case ds_e1b:    parse_ds_e1b(scancode); break;
        case ds_e1c:    parse_ds_e1c(scancode); break;
        }
}

static void parse_ds_start(int scancode)
{
        if (scancode == 0x1b) {
                ds = ds_e;
                return;
        }

        parse_leaf(scancode, map_start, sizeof(map_start) / (2 * sizeof(int)));
}

static void parse_ds_e(int scancode)
{
        switch (scancode) {
        case 0x5b: ds = ds_e1; return;
        case 0x1b: ds = ds_start; break;
        default: ds = ds_start; return;
        }

        kbd_push_ev(KE_PRESS, KC_ESCAPE);
}

static void parse_ds_e1(int scancode)
{
        switch (scancode) {
        case 0x4f: ds = ds_e1a; return;
        case 0x31: ds = ds_e1b; return;
        case 0x32: ds = ds_e1c; return;
        default: ds = ds_start; break;
        }

        parse_leaf(scancode, map_e1, sizeof(map_e1) / (2 * sizeof(int)));
}

static void parse_ds_e1a(int scancode)
{
        parse_leaf(scancode, map_e1a, sizeof(map_e1a) / (2 * sizeof(int)));
}

static void parse_ds_e1b(int scancode)
{
        parse_leaf(scancode, map_e1b, sizeof(map_e1b) / (2 * sizeof(int)));
}

static void parse_ds_e1c(int scancode)
{
        parse_leaf(scancode, map_e1c, sizeof(map_e1c) / (2 * sizeof(int)));
}

static void parse_leaf(int scancode, int (*map)[2], size_t map_length)
{
        unsigned int key, mod;
        int i;

        ds = ds_start;

        if (scancode < 0 || scancode >= map_length)
                return;

        mod = map[scancode][0];
        key = map[scancode][1];

        /* Simulate modifier pressing. */
        i = 0;
        while (mods_keys[i][0] != 0) {
                if (mod & mods_keys[i][0]) {
                        kbd_push_ev(KE_PRESS, mods_keys[i][1]);
                }
                ++i;
        }

        if (key != 0) {
                kbd_push_ev(KE_PRESS, key);
                kbd_push_ev(KE_RELEASE, key);
        }

        /* Simulate modifier releasing. */
        i = 0;
        while (mods_keys[i][0] != 0) {
                if (mod & mods_keys[i][0]) {
                        kbd_push_ev(KE_RELEASE, mods_keys[i][1]);
                }
                ++i;
        }
}

/**
 * @}
 */