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This commit is contained in:
Jack Humbert 2018-09-19 23:27:13 -04:00
parent 23da333ae3
commit c49e7e01ab
10 changed files with 843 additions and 2 deletions
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keyboards/planck/thk/matrix.c Normal file
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/*
Copyright 2017 Luiz Ribeiro <luizribeiro@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 <avr/io.h>
#include <util/delay.h>
#include "matrix.h"
#ifndef DEBOUNCE
# define DEBOUNCE 5
#endif
// #define MATRIX_ROW_PINS { A7, A6, A5, A4 }
// #define MATRIX_COL_PINS { D7, C2, C3, C4, C5, C6, C7, A3, A2, A1, A0, B0 }
static uint8_t debouncing = DEBOUNCE;
static matrix_row_t matrix[MATRIX_ROWS];
static uint8_t matrix_debouncing[MATRIX_COLS];
void matrix_init(void) {
MCUCSR = (1<<JTD);
MCUCSR = (1<<JTD);
//ADCSRA = 0;
// rows (input)
DDRA &= ~((1 << 7) | (1 << 6) | (1 << 5) | (1 << 4));
PORTA &= ~((1 << 7) | (1 << 6) | (1 << 5) | (1 << 4));
// cols (output)
DDRD |= ((1 << 7));
DDRC |= ((1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7));
DDRA |= ((1 << 3) | (1 << 2) | (1 << 1) | (1 << 0));
DDRB |= ((1 << 0));
PORTD &= ~((1 << 7));
PORTC &= ~((1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7));
PORTA &= ~((1 << 3) | (1 << 2) | (1 << 1) | (1 << 0));
PORTB &= ~((1 << 0));
// initialize matrix state: all keys off
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
matrix[row] = 0x00;
}
for (uint8_t col = 0; col < MATRIX_COLS; col++) {
matrix_debouncing[col] = 0x00;
}
matrix_init_quantum();
}
uint8_t matrix_scan(void) {
for (uint8_t c = 0; c < MATRIX_COLS; c++) {
switch (c) {
case 0: PORTD |= (1 << 7); break;
case 1: PORTC |= (1 << 2); break;
case 2: PORTC |= (1 << 3); break;
case 3: PORTC |= (1 << 4); break;
case 4: PORTC |= (1 << 5); break;
case 5: PORTC |= (1 << 6); break;
case 6: PORTC |= (1 << 7); break;
case 7: PORTA |= (1 << 3); break;
case 8: PORTA |= (1 << 2); break;
case 9: PORTA |= (1 << 1); break;
case 10: PORTA |= (1 << 0); break;
case 11: PORTB |= (1 << 0); break;
}
_delay_us(5);
uint8_t current_col = (
((PINA & (1 << 7)) ? 1 : 0 ) |
(((PINA & (1 << 6)) ? 1 : 0 ) << 1) |
(((PINA & (1 << 5)) ? 1 : 0 ) << 2) |
(((PINA & (1 << 4)) ? 1 : 0 ) << 3)
);
switch (c) {
case 0: PORTD &= ~(1 << 7); break;
case 1: PORTC &= ~(1 << 2); break;
case 2: PORTC &= ~(1 << 3); break;
case 3: PORTC &= ~(1 << 4); break;
case 4: PORTC &= ~(1 << 5); break;
case 5: PORTC &= ~(1 << 6); break;
case 6: PORTC &= ~(1 << 7); break;
case 7: PORTA &= ~(1 << 3); break;
case 8: PORTA &= ~(1 << 2); break;
case 9: PORTA &= ~(1 << 1); break;
case 10: PORTA &= ~(1 << 0); break;
case 11: PORTB &= ~(1 << 0); break;
}
if (matrix_debouncing[c] != current_col) {
matrix_debouncing[c] = current_col;
debouncing = DEBOUNCE;
}
}
if (debouncing) {
if (--debouncing) {
_delay_ms(1);
} else {
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = 0;
for (uint8_t j = 0; j < MATRIX_COLS; j++) {
matrix[i] |= (((matrix_debouncing[j] & (1 << i)) ? 1L : 0 ) << j);
}
}
}
}
matrix_scan_quantum();
return 1;
}
inline matrix_row_t matrix_get_row(uint8_t row) {
return matrix[row];
}
void matrix_print(void) {
}
__attribute__ ((weak))
void matrix_init_user(void) { }
__attribute__ ((weak))
void matrix_scan_user(void) { }