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/*
Copyright 2011, 2012, 2013 Jun Wako <wakojun@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include "keyboard.h"
#include "matrix.h"
#include "keymap.h"
#include "host.h"
#include "led.h"
#include "keycode.h"
#include "timer.h"
#include "print.h"
#include "debug.h"
#include "command.h"
#include "util.h"
#include "sendchar.h"
#include "eeconfig.h"
#include "backlight.h"
#ifdef BOOTMAGIC_ENABLE
# include "bootmagic.h"
#else
# include "magic.h"
#endif
#ifdef MOUSEKEY_ENABLE
# include "mousekey.h"
#endif
#ifdef PS2_MOUSE_ENABLE
# include "ps2_mouse.h"
#endif
#ifdef SERIAL_MOUSE_ENABLE
# include "serial_mouse.h"
#endif
#ifdef ADB_MOUSE_ENABLE
# include "adb.h"
#endif
#ifdef MATRIX_HAS_GHOST
static bool is_row_ghosting(uint8_t row){
matrix_row_t state = matrix_get_row(row);
/* no ghosting happens when only one key in the row is pressed */
if (!(state - 1 & state)) return false;
/* ghosting occurs when two keys in the same column are pressed */
for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
if (r != row && matrix_get_row(r) & state) return true;
}
return false;
}
#endif
__attribute__ ((weak))
void matrix_setup(void) {
}
void keyboard_setup(void) {
matrix_setup();
}
void keyboard_init(void) {
timer_init();
matrix_init();
#ifdef PS2_MOUSE_ENABLE
ps2_mouse_init();
#endif
#ifdef SERIAL_MOUSE_ENABLE
serial_mouse_init();
#endif
#ifdef ADB_MOUSE_ENABLE
adb_mouse_init();
#endif
#ifdef BOOTMAGIC_ENABLE
bootmagic();
#else
magic();
#endif
#ifdef BACKLIGHT_ENABLE
backlight_init();
#endif
#if defined(NKRO_ENABLE) && defined(FORCE_NKRO)
keyboard_nkro = true;
#endif
}
/* does routine keyboard jobs */
void keyboard_task(void) {
static uint8_t led_status;
matrix_scan();
for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
static matrix_row_t previous_matrix[MATRIX_ROWS];
matrix_row_t state = matrix_get_row(r);
matrix_row_t changes = state ^ previous_matrix[r];
if (changes) {
#ifdef MATRIX_HAS_GHOST
static matrix_row_t deghosting_matrix[MATRIX_ROWS];
if (is_row_ghosting(r)) {
/* debugs the deghosting mechanism */
/* doesn't update previous_matrix until the ghosting has stopped
* in order to prevent the last key from being lost
*/
if (debug_matrix && deghosting_matrix[r] != state) {
matrix_print();
}
deghosting_matrix[r] = state;
continue;
}
deghosting_matrix[r] = state;
#endif
if (debug_matrix) matrix_print();
for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
matrix_row_t mask = (matrix_row_t)1 << c;
if (changes & mask) {
keyevent_t event;
event.key = (keypos_t){ .row = r, .col = c };
event.pressed = state & mask;
/* the time should not be 0 */
event.time = timer_read() | 1;
action_exec(event);
/* records the processed key event */
previous_matrix[r] ^= mask;
/* processes one key event per call */
goto event_processed;
}
}
}
}
/* sends tick events when the keyboard is idle */
action_exec(TICK);
event_processed:
#ifdef MOUSEKEY_ENABLE
/* repeats and accelerates the mouse keys */
mousekey_task();
#endif
#ifdef PS2_MOUSE_ENABLE
ps2_mouse_task();
#endif
#ifdef SERIAL_MOUSE_ENABLE
serial_mouse_task();
#endif
#ifdef ADB_MOUSE_ENABLE
adb_mouse_task();
#endif
/* updates the LEDs */
if (led_status != host_keyboard_leds()) {
led_status = host_keyboard_leds();
keyboard_set_leds(led_status);
}
}
void keyboard_set_leds(uint8_t leds) {
if (debug_keyboard) dprintf("Keyboard LEDs state: %x\n", leds);
led_set(leds);
}
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