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  1. /*
  2.  * Copyright (c) 2009 Jiri Svoboda
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup kbd
  30.  * @brief   US Dvorak Simplified Keyboard layout.
  31.  * @{
  32.  */
  33.  
  34. #include <kbd.h>
  35. #include <kbd/kbd.h>
  36. #include <kbd/keycode.h>
  37. #include <layout.h>
  38.  
  39. static char map_lcase[] = {
  40.     [KC_R] = 'p',
  41.     [KC_T] = 'y',
  42.     [KC_Y] = 'f',
  43.     [KC_U] = 'g',
  44.     [KC_I] = 'c',
  45.     [KC_O] = 'r',
  46.     [KC_P] = 'l',
  47.  
  48.     [KC_A] = 'a',
  49.     [KC_S] = 'o',
  50.     [KC_D] = 'e',
  51.     [KC_F] = 'u',
  52.     [KC_G] = 'i',
  53.     [KC_H] = 'd',
  54.     [KC_J] = 'h',
  55.     [KC_K] = 't',
  56.     [KC_L] = 'n',
  57.  
  58.     [KC_SEMICOLON] = 's',
  59.  
  60.     [KC_X] = 'q',
  61.     [KC_C] = 'j',
  62.     [KC_V] = 'k',
  63.     [KC_B] = 'x',
  64.     [KC_N] = 'b',
  65.     [KC_M] = 'm',
  66.  
  67.     [KC_COMMA] = 'w',
  68.     [KC_PERIOD] = 'v',
  69.     [KC_SLASH] = 'z',
  70. };
  71.  
  72. static char map_ucase[] = {
  73.     [KC_R] = 'P',
  74.     [KC_T] = 'Y',
  75.     [KC_Y] = 'F',
  76.     [KC_U] = 'G',
  77.     [KC_I] = 'C',
  78.     [KC_O] = 'R',
  79.     [KC_P] = 'L',
  80.  
  81.     [KC_A] = 'A',
  82.     [KC_S] = 'O',
  83.     [KC_D] = 'E',
  84.     [KC_F] = 'U',
  85.     [KC_G] = 'I',
  86.     [KC_H] = 'D',
  87.     [KC_J] = 'H',
  88.     [KC_K] = 'T',
  89.     [KC_L] = 'N',
  90.  
  91.     [KC_SEMICOLON] = 'S',
  92.  
  93.     [KC_X] = 'Q',
  94.     [KC_C] = 'J',
  95.     [KC_V] = 'K',
  96.     [KC_B] = 'X',
  97.     [KC_N] = 'B',
  98.     [KC_M] = 'M',
  99.  
  100.     [KC_COMMA] = 'W',
  101.     [KC_PERIOD] = 'V',
  102.     [KC_SLASH] = 'Z',
  103. };
  104.  
  105. static char map_not_shifted[] = {
  106.     [KC_BACKTICK] = '`',
  107.  
  108.     [KC_1] = '1',
  109.     [KC_2] = '2',
  110.     [KC_3] = '3',
  111.     [KC_4] = '4',
  112.     [KC_5] = '5',
  113.     [KC_6] = '6',
  114.     [KC_7] = '7',
  115.     [KC_8] = '8',
  116.     [KC_9] = '9',
  117.     [KC_0] = '0',
  118.  
  119.     [KC_MINUS] = '[',
  120.     [KC_EQUALS] = ']',
  121.  
  122.     [KC_Q] = '\'',
  123.     [KC_W] = ',',
  124.     [KC_E] = '.',
  125.  
  126.     [KC_LBRACKET] = '/',
  127.     [KC_RBRACKET] = '=',
  128.  
  129.     [KC_QUOTE] = '-',
  130.     [KC_BACKSLASH] = '\\',
  131.  
  132.     [KC_Z] = ';',
  133. };
  134.  
  135. static char map_shifted[] = {
  136.     [KC_BACKTICK] = '~',
  137.  
  138.     [KC_1] = '!',
  139.     [KC_2] = '@',
  140.     [KC_3] = '#',
  141.     [KC_4] = '$',
  142.     [KC_5] = '%',
  143.     [KC_6] = '^',
  144.     [KC_7] = '&',
  145.     [KC_8] = '*',
  146.     [KC_9] = '(',
  147.     [KC_0] = ')',
  148.  
  149.     [KC_MINUS] = '{',
  150.     [KC_EQUALS] = '}',
  151.  
  152.     [KC_Q] = '"',
  153.     [KC_W] = '<',
  154.     [KC_E] = '>',
  155.  
  156.     [KC_LBRACKET] = '?',
  157.     [KC_RBRACKET] = '+',
  158.  
  159.     [KC_QUOTE] = '_',
  160.     [KC_BACKSLASH] = '|',
  161.  
  162.     [KC_Z] = ':',
  163. };
  164.  
  165. static char map_neutral[] = {
  166.     [KC_BACKSPACE] = '\b',
  167.     [KC_TAB] = '\t',
  168.     [KC_ENTER] = '\n'
  169. };
  170.  
  171. static int translate(unsigned int key, char *map, size_t map_length)
  172. {
  173.     if (key >= map_length) return 0;
  174.     return map[key];   
  175. }
  176.  
  177. char layout_parse_ev(kbd_event_t *ev)
  178. {
  179.     char c;
  180.  
  181.     /* Produce no characters when Ctrl or Alt is pressed. */
  182.     if ((ev->mods & (KM_CTRL | KM_ALT)) != 0)
  183.         return 0;
  184.  
  185.     c = translate(ev->key, map_neutral, sizeof(map_neutral) / sizeof(char));
  186.     if (c != 0) return c;
  187.  
  188.     if (((ev->mods & KM_SHIFT) != 0) ^ ((ev->mods & KM_CAPS_LOCK) != 0))
  189.         c = translate(ev->key, map_ucase, sizeof(map_ucase) / sizeof(char));
  190.     else
  191.         c = translate(ev->key, map_lcase, sizeof(map_lcase) / sizeof(char));
  192.  
  193.     if (c != 0) return c;
  194.  
  195.     if ((ev->mods & KM_SHIFT) != 0)
  196.         c = translate(ev->key, map_shifted, sizeof(map_shifted) / sizeof(char));
  197.     else
  198.         c = translate(ev->key, map_not_shifted, sizeof(map_not_shifted) / sizeof(char));
  199.  
  200.     if (c != 0 ) return c;
  201.  
  202. }
  203.  
  204.  
  205. /**
  206.  * @}
  207.  */
  208.