77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
|
/*
|
||
|
|
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/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef KEYBOARD_H
|
||
|
|
#define KEYBOARD_H
|
||
|
|
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* key matrix position */
|
||
|
|
typedef struct {
|
||
|
|
uint8_t col;
|
||
|
|
uint8_t row;
|
||
|
|
} keypos_t;
|
||
|
|
|
||
|
|
/* key event */
|
||
|
|
typedef struct {
|
||
|
|
keypos_t key;
|
||
|
|
bool pressed;
|
||
|
|
uint16_t time;
|
||
|
|
} keyevent_t;
|
||
|
|
|
||
|
|
/* equivalent test of keypos_t */
|
||
|
|
#define KEYEQ(keya, keyb) ((keya).row == (keyb).row && (keya).col == (keyb).col)
|
||
|
|
|
||
|
|
/* Rules for No Event:
|
||
|
|
* 1) (time == 0) to handle (keyevent_t){} as empty event
|
||
|
|
* 2) Matrix(255, 255) to make TICK event available
|
||
|
|
*/
|
||
|
|
static inline bool IS_NOEVENT(keyevent_t event) { return event.time == 0 || (event.key.row == 255 && event.key.col == 255); }
|
||
|
|
static inline bool IS_PRESSED(keyevent_t event) { return (!IS_NOEVENT(event) && event.pressed); }
|
||
|
|
static inline bool IS_RELEASED(keyevent_t event) { return (!IS_NOEVENT(event) && !event.pressed); }
|
||
|
|
|
||
|
|
/* Tick event */
|
||
|
|
#define TICK \
|
||
|
|
(keyevent_t) { .key = (keypos_t){.row = 255, .col = 255}, .pressed = false, .time = (timer_read() | 1) }
|
||
|
|
|
||
|
|
/* it runs once at early stage of startup before keyboard_init. */
|
||
|
|
void keyboard_setup(void);
|
||
|
|
/* it runs once after initializing host side protocol, debug and MCU peripherals. */
|
||
|
|
void keyboard_init(void);
|
||
|
|
/* it runs repeatedly in main loop */
|
||
|
|
void keyboard_task(void);
|
||
|
|
/* it runs when host LED status is updated */
|
||
|
|
void keyboard_set_leds(uint8_t leds);
|
||
|
|
/* it runs whenever code has to behave differently on a slave */
|
||
|
|
bool is_keyboard_master(void);
|
||
|
|
|
||
|
|
void keyboard_pre_init_kb(void);
|
||
|
|
void keyboard_pre_init_user(void);
|
||
|
|
void keyboard_post_init_kb(void);
|
||
|
|
void keyboard_post_init_user(void);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|