common/keyboard.c

   1 /*
   2 Copyright 2011,2012 Jun Wako <wakojun@gmail.com>
   3
   4 This program is free software: you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation, either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17 #include "keyboard.h"
  18 #include "matrix.h"
  19 #include "keymap.h"
  20 #include "host.h"
  21 #include "led.h"
  22 #include "keycode.h"
  23 #include "timer.h"
  24 #include "print.h"
  25 #include "debug.h"
  26 #include "command.h"
  27 #include "util.h"
  28 #include "sendchar.h"
  29 #ifdef MOUSEKEY_ENABLE
  30 #include "mousekey.h"
  31 #endif
  32
  33
  34 void keyboard_init(void)
  35 {
  36     // TODO: to enable debug print magic key bind on boot time
  37
  38     // TODO: configuration of sendchar impl
  39     print_sendchar_func = sendchar;
  40
  41     timer_init();
  42     matrix_init();
  43 #ifdef PS2_MOUSE_ENABLE
  44     ps2_mouse_init();
  45 #endif
  46 }
  47
  48 /*
  49  * Do keyboard routine jobs: scan mantrix, light LEDs, ...
  50  * This is repeatedly called as fast as possible.
  51  */
  52 void keyboard_task(void)
  53 {
  54     static matrix_row_t matrix_prev[MATRIX_ROWS];
  55     static uint8_t led_status = 0;
  56     matrix_row_t matrix_row = 0;
  57     matrix_row_t matrix_change = 0;
  58
  59     matrix_scan();
  60     for (int r = 0; r < MATRIX_ROWS; r++) {
  61         matrix_row = matrix_get_row(r);
  62         matrix_change = matrix_row ^ matrix_prev[r];
  63         if (matrix_change) {
  64             if (debug_matrix) matrix_print();
  65
  66             for (int c = 0; c < MATRIX_COLS; c++) {
  67                 if (matrix_change & (1<<c)) {
  68                     keymap_process_event((keyevent_t){
  69                         .key = (keypos_t){ .row = r, .col = c },
  70                         .pressed = (matrix_row & (1<<c))
  71                     });
  72                     // record a processed key
  73                     matrix_prev[r] ^= (1<<c);
  74                     // process a key per task call
  75                     goto MATRIX_LOOP_END;
  76                 }
  77             }
  78         }
  79     }
  80     MATRIX_LOOP_END:
  81
  82 #ifdef MOUSEKEY_ENABLE
  83     // mousekey repeat & acceleration
  84     mousekey_task();
  85 #endif
  86
  87     // update LED
  88     if (led_status != host_keyboard_leds()) {
  89         led_status = host_keyboard_leds();
  90         keyboard_set_leds(led_status);
  91     }
  92
  93     return;
  94 }
  95
  96 void keyboard_set_leds(uint8_t leds)
  97 {
  98     led_set(leds);
  99 }