2 Copyright 2011,2012,2013 Jun Wako <wakojun@gmail.com>
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.
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.
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/>.
18 #include <util/delay.h>
31 #include "bootmagic.h"
34 #include "backlight.h"
37 #ifdef MATRIX_HAS_GHOST
38 static bool has_ghost_in_row(uint8_t row)
40 matrix_row_t matrix_row = matrix_get_row(row);
41 // No ghost exists when less than 2 keys are down on the row
42 if (((matrix_row - 1) & matrix_row) == 0)
45 // Ghost occurs when the row shares column line with other row
46 for (uint8_t i=0; i < MATRIX_ROWS; i++) {
47 if (i != row && (matrix_get_row(i) & matrix_row))
55 void keyboard_init(void)
59 #ifdef PS2_MOUSE_ENABLE
63 #ifdef BOOTMAGIC_ENABLE
67 #ifdef BACKLIGHT_ENABLE
73 * Do keyboard routine jobs: scan mantrix, light LEDs, ...
74 * This is repeatedly called as fast as possible.
76 void keyboard_task(void)
78 static matrix_row_t matrix_prev[MATRIX_ROWS];
79 static uint8_t led_status = 0;
80 matrix_row_t matrix_row = 0;
81 matrix_row_t matrix_change = 0;
84 for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
85 matrix_row = matrix_get_row(r);
86 matrix_change = matrix_row ^ matrix_prev[r];
88 if (debug_matrix) matrix_print();
89 #ifdef MATRIX_HAS_GHOST
90 if (has_ghost_in_row(r)) {
91 matrix_prev[r] = matrix_row;
95 for (uint8_t c = 0; c < MATRIX_COLS; c++) {
96 if (matrix_change & ((matrix_row_t)1<<c)) {
97 action_exec((keyevent_t){
98 .key = (key_t){ .row = r, .col = c },
99 .pressed = (matrix_row & ((matrix_row_t)1<<c)),
100 .time = (timer_read() | 1) /* time should not be 0 */
102 // record a processed key
103 matrix_prev[r] ^= ((matrix_row_t)1<<c);
104 // process a key per task call
105 goto MATRIX_LOOP_END;
110 // call with pseudo tick event when no real key event.
114 #ifdef MOUSEKEY_ENABLE
115 // mousekey repeat & acceleration
119 if (led_status != host_keyboard_leds()) {
120 led_status = host_keyboard_leds();
121 keyboard_set_leds(led_status);
125 void keyboard_set_leds(uint8_t leds)
127 if (debug_keyboard) { debug("keyboard_set_led: "); debug_hex8(leds); debug("\n"); }