141 lines
3.6 KiB
C
141 lines
3.6 KiB
C
/*
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Copyright 2011,2012,2013 Jun Wako <wakojun@gmail.com>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <util/delay.h>
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#include "keyboard.h"
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#include "matrix.h"
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#include "keymap.h"
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#include "host.h"
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#include "led.h"
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#include "keycode.h"
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#include "timer.h"
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#include "print.h"
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#include "debug.h"
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#include "command.h"
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#include "util.h"
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#include "sendchar.h"
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#include "bootmagic.h"
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#include "eeconfig.h"
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#include "backlight.h"
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#ifdef MOUSEKEY_ENABLE
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# include "mousekey.h"
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#endif
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#ifdef PS2_MOUSE_ENABLE
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# include "ps2_mouse.h"
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#endif
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#ifdef MATRIX_HAS_GHOST
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static bool has_ghost_in_row(uint8_t row)
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{
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matrix_row_t matrix_row = matrix_get_row(row);
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// No ghost exists when less than 2 keys are down on the row
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if (((matrix_row - 1) & matrix_row) == 0)
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return false;
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// Ghost occurs when the row shares column line with other row
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for (uint8_t i=0; i < MATRIX_ROWS; i++) {
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if (i != row && (matrix_get_row(i) & matrix_row))
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return true;
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}
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return false;
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}
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#endif
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void keyboard_init(void)
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{
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timer_init();
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matrix_init();
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#ifdef PS2_MOUSE_ENABLE
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ps2_mouse_init();
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#endif
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#ifdef BOOTMAGIC_ENABLE
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bootmagic();
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#endif
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#ifdef BACKLIGHT_ENABLE
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backlight_init();
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#endif
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}
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/*
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* Do keyboard routine jobs: scan mantrix, light LEDs, ...
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* This is repeatedly called as fast as possible.
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*/
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void keyboard_task(void)
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{
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static matrix_row_t matrix_prev[MATRIX_ROWS];
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static uint8_t led_status = 0;
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matrix_row_t matrix_row = 0;
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matrix_row_t matrix_change = 0;
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matrix_scan();
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for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
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matrix_row = matrix_get_row(r);
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matrix_change = matrix_row ^ matrix_prev[r];
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if (matrix_change) {
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if (debug_matrix) matrix_print();
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#ifdef MATRIX_HAS_GHOST
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if (has_ghost_in_row(r)) {
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matrix_prev[r] = matrix_row;
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continue;
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}
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#endif
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for (uint8_t c = 0; c < MATRIX_COLS; c++) {
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if (matrix_change & ((matrix_row_t)1<<c)) {
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action_exec((keyevent_t){
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.key = (key_t){ .row = r, .col = c },
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.pressed = (matrix_row & ((matrix_row_t)1<<c)),
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.time = (timer_read() | 1) /* time should not be 0 */
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});
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// record a processed key
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matrix_prev[r] ^= ((matrix_row_t)1<<c);
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// process a key per task call
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goto MATRIX_LOOP_END;
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}
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}
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}
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}
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// call with pseudo tick event when no real key event.
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action_exec(TICK);
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MATRIX_LOOP_END:
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#ifdef MOUSEKEY_ENABLE
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// mousekey repeat & acceleration
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mousekey_task();
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#endif
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#ifdef PS2_MOUSE_ENABLE
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ps2_mouse_task();
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#endif
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// update LED
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if (led_status != host_keyboard_leds()) {
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led_status = host_keyboard_leds();
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keyboard_set_leds(led_status);
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}
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}
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void keyboard_set_leds(uint8_t leds)
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{
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if (debug_keyboard) { debug("keyboard_set_led: "); debug_hex8(leds); debug("\n"); }
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led_set(leds);
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}
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