#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];
static void select_row(uint8_t row);
-inline
-uint8_t matrix_rows(void)
-{
- return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void)
-{
- return MATRIX_COLS;
-}
-
void matrix_init(void)
{
// initialize row and col
{
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;
}
-bool matrix_is_modified(void)
-{
- if (debouncing) return false;
- return true;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
- return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
inline
matrix_row_t matrix_get_row(uint8_t row)
{
return matrix[row];
}
-void matrix_print(void)
-{
- print("\nr/c 0123456789ABCDEF\n");
- for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
- phex(row); print(": ");
- pbin_reverse16(matrix_get_row(row));
- print("\n");
- }
-}
-
-uint8_t matrix_key_count(void)
-{
- uint8_t count = 0;
- for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
- count += bitpop16(matrix[i]);
- }
- return count;
-}
-
/* Column pin configuration
* col: 0 1 2 3 4 5 6 7 8 9 10 11 12 13
* pin: F0 F1 E6 C7 C6 B6 D4 B1 B0 B5 B4 D7 D6 B3 (Rev.A)