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gh60: Change debouncing using timer count

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tmk 2019-11-12 12:36:49 +09:00
parent 1b581bc173
commit beaeed9334
1 changed files with 13 additions and 12 deletions
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25
keyboard/gh60/matrix.c
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@ -25,13 +25,16 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "print.h"
#include "debug.h"
#include "util.h"
#include "timer.h"
#include "matrix.h"
#ifndef DEBOUNCE
# define DEBOUNCE 5
#endif
static uint8_t debouncing = DEBOUNCE;
static bool debouncing = false;
static uint16_t debouncing_time = 0;
/* matrix state(1:on, 0:off) */
static matrix_row_t matrix[MATRIX_ROWS];
@ -60,26 +63,24 @@ uint8_t matrix_scan(void)
{
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
select_row(i);
_delay_us(30); // without this wait read unstable value.
_delay_us(1); // delay for settling
matrix_row_t cols = read_cols();
if (matrix_debouncing[i] != cols) {
matrix_debouncing[i] = cols;
if (debouncing) {
debug("bounce!: "); debug_hex(debouncing); debug("\n");
dprintf("bounce: %d %d@%02X\n", timer_elapsed(debouncing_time), i, matrix_debouncing[i]^cols);
}
debouncing = DEBOUNCE;
matrix_debouncing[i] = cols;
debouncing = true;
debouncing_time = timer_read();
}
unselect_rows();
}
if (debouncing) {
if (--debouncing) {
_delay_ms(1);
} else {
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = matrix_debouncing[i];
}
if (debouncing && timer_elapsed(debouncing_time) >= DEBOUNCE) {
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = matrix_debouncing[i];
}
debouncing = false;
}
return 1;