common/keyboard.c

   1 /*
   2 Copyright 2011,2012,2013 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 #include "bootloader.h"
  30 #ifdef MOUSEKEY_ENABLE
  31 #include "mousekey.h"
  32 #endif
  33
  34
  35 void keyboard_init(void)
  36 {
  37     // TODO: configuration of sendchar impl
  38     print_sendchar_func = sendchar;
  39
  40     timer_init();
  41     matrix_init();
  42
  43     /* boot magic keys goes here */
  44     matrix_scan();
  45 #ifdef IS_BOOTMAGIC_BOOTLOADER
  46     /* kick up bootloader */
  47     if (IS_BOOTMAGIC_BOOTLOADER()) bootloader_jump();
  48 #endif
  49 #ifdef IS_BOOTMAGIC_DEBUG
  50     if (IS_BOOTMAGIC_DEBUG()) debug_enable = true;
  51 #endif
  52
  53 #ifdef PS2_MOUSE_ENABLE
  54     ps2_mouse_init();
  55 #endif
  56 }
  57
  58 /*
  59  * Do keyboard routine jobs: scan mantrix, light LEDs, ...
  60  * This is repeatedly called as fast as possible.
  61  */
  62 void keyboard_task(void)
  63 {
  64     static matrix_row_t matrix_prev[MATRIX_ROWS];
  65     static uint8_t led_status = 0;
  66     matrix_row_t matrix_row = 0;
  67     matrix_row_t matrix_change = 0;
  68
  69     matrix_scan();
  70     for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
  71         matrix_row = matrix_get_row(r);
  72         matrix_change = matrix_row ^ matrix_prev[r];
  73         if (matrix_change) {
  74             if (debug_matrix) matrix_print();
  75
  76             for (uint8_t c = 0; c < MATRIX_COLS; c++) {
  77                 if (matrix_change & ((matrix_row_t)1<<c)) {
  78                     action_exec((keyevent_t){
  79                         .key.pos  = (keypos_t){ .row = r, .col = c },
  80                         .pressed = (matrix_row & (1<<c)),
  81                         .time = (timer_read() | 1) /* time should not be 0 */
  82                     });
  83                     // record a processed key
  84                     matrix_prev[r] ^= ((matrix_row_t)1<<c);
  85                     // process a key per task call
  86                     goto MATRIX_LOOP_END;
  87                 }
  88             }
  89         }
  90     }
  91     // call with pseudo tick event when no real key event.
  92     action_exec(TICK);
  93
  94 MATRIX_LOOP_END:
  95 #ifdef MOUSEKEY_ENABLE
  96     // mousekey repeat & acceleration
  97     mousekey_task();
  98 #endif
  99     // update LED
 100     if (led_status != host_keyboard_leds()) {
 101         led_status = host_keyboard_leds();
 102         keyboard_set_leds(led_status);
 103     }
 104 }
 105
 106 void keyboard_set_leds(uint8_t leds)
 107 {
 108     led_set(leds);
 109 }