/*
* 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 PC keyboard controller driver.
*/
#include <kbd.h>
#include <kbd/kbd.h>
#include <kbd/keycode.h>
#include <kbd_ctl.h>
enum dec_state {
ds_s,
ds_e
};
static enum dec_state ds = ds_s;
static int scanmap_simple[] = {
[0x29] = KC_BACKTICK,
[0x02] = KC_1,
[0x03] = KC_2,
[0x04] = KC_3,
[0x05] = KC_4,
[0x06] = KC_5,
[0x07] = KC_6,
[0x08] = KC_7,
[0x09] = KC_8,
[0x0a] = KC_9,
[0x0b] = KC_0,
[0x0c] = KC_MINUS,
[0x0d] = KC_EQUALS,
[0x0e] = KC_BACKSPACE,
[0x0f] = KC_TAB,
[0x10] = KC_Q,
[0x11] = KC_W,
[0x12] = KC_E,
[0x13] = KC_R,
[0x14] = KC_T,
[0x15] = KC_Y,
[0x16] = KC_U,
[0x17] = KC_I,
[0x18] = KC_O,
[0x19] = KC_P,
[0x1a] = KC_LBRACKET,
[0x1b] = KC_RBRACKET,
[0x3a] = KC_CAPS_LOCK,
[0x1e] = KC_A,
[0x1f] = KC_S,
[0x20] = KC_D,
[0x21] = KC_F,
[0x22] = KC_G,
[0x23] = KC_H,
[0x24] = KC_J,
[0x25] = KC_K,
[0x26] = KC_L,
[0x27] = KC_SEMICOLON,
[0x28] = KC_QUOTE,
[0x2b] = KC_BACKSLASH,
[0x2a] = KC_LSHIFT,
[0x2c] = KC_Z,
[0x2d] = KC_X,
[0x2e] = KC_C,
[0x2f] = KC_V,
[0x30] = KC_B,
[0x31] = KC_N,
[0x32] = KC_M,
[0x33] = KC_COMMA,
[0x34] = KC_PERIOD,
[0x35] = KC_SLASH,
[0x36] = KC_RSHIFT,
[0x1d] = KC_LCTRL,
[0x38] = KC_LALT,
[0x39] = KC_SPACE,
[0x01] = KC_ESCAPE,
[0x3b] = KC_F1,
[0x3c] = KC_F2,
[0x3d] = KC_F3,
[0x3e] = KC_F4,
[0x3f] = KC_F5,
[0x40] = KC_F6,
[0x41] = KC_F7,
[0x42] = KC_F8,
[0x43] = KC_F9,
[0x44] = KC_F10,
[0x57] = KC_F11,
[0x58] = KC_F12,
[0x46] = KC_SCROLL_LOCK,
[0x1c] = KC_ENTER,
[0x45] = KC_NUM_LOCK,
[0x37] = KC_NTIMES,
[0x4a] = KC_NMINUS,
[0x4e] = KC_NPLUS,
[0x47] = KC_N7,
[0x48] = KC_N8,
[0x49] = KC_N9,
[0x4b] = KC_N4,
[0x4c] = KC_N5,
[0x4d] = KC_N6,
[0x4f] = KC_N1,
[0x50] = KC_N2,
[0x51] = KC_N3,
[0x52] = KC_N0,
[0x53] = KC_NPERIOD
};
static int scanmap_e0[] = {
[0x38] = KC_RALT,
[0x1d] = KC_RSHIFT,
[0x37] = KC_PRTSCR,
[0x52] = KC_INSERT,
[0x47] = KC_HOME,
[0x49] = KC_PAGE_UP,
[0x53] = KC_DELETE,
[0x4f] = KC_END,
[0x51] = KC_PAGE_DOWN,
[0x48] = KC_UP,
[0x4b] = KC_LEFT,
[0x50] = KC_DOWN,
[0x4d] = KC_RIGHT,
[0x35] = KC_NSLASH,
[0x1c] = KC_NENTER
};
void kbd_ctl_parse_scancode(int scancode)
{
kbd_ev_type_t type;
unsigned int key;
int *map;
size_t map_length;
if (scancode == 0xe0) {
ds = ds_e;
return;
}
switch (ds) {
case ds_s:
map = scanmap_simple;
map_length = sizeof(scanmap_simple) / sizeof(int);
break;
case ds_e:
map = scanmap_e0;
map_length = sizeof(scanmap_e0) / sizeof(int);
break;
}
ds = ds_s;
if (scancode & 0x80) {
scancode &= ~0x80;
type = KE_RELEASE;
} else {
type = KE_PRESS;
}
if (scancode < 0 || scancode >= map_length)
return;
key = map[scancode];
if (key != 0)
kbd_push_ev(type, key);
}
/**
* @}
*/