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#include "matrix.h"
#include "quantum.h"
static matrix_row_t read_row(uint8_t row) {
matrix_io_delay(); // without this wait read unstable value.
// keypad and program buttons
if (row == 12) {
return ~(readPin(B4) | (readPin(B5) << 1) | 0b11111100);
}
return ~(readPin(B6) | readPin(B2) << 1 | readPin(B3) << 2 | readPin(B1) << 3 | readPin(F7) << 4 | readPin(F6) << 5 | readPin(F5) << 6 | readPin(F4) << 7);
}
static void unselect_rows(void) {
// set A,B,C,G to 0
PORTD &= 0xF0;
}
static void select_rows(uint8_t row) {
// set A,B,C,G to row value
PORTD |= (0x0F & row);
}
void matrix_init_custom(void) {
// output low (multiplexers)
setPinOutput(D0);
setPinOutput(D1);
setPinOutput(D2);
setPinOutput(D3);
// input with pullup (matrix)
setPinInputHigh(B6);
setPinInputHigh(B2);
setPinInputHigh(B3);
setPinInputHigh(B1);
setPinInputHigh(F7);
setPinInputHigh(F6);
setPinInputHigh(F5);
setPinInputHigh(F4);
// input with pullup (program and keypad buttons)
setPinInputHigh(B4);
setPinInputHigh(B5);
// initialize row and col
unselect_rows();
}
bool matrix_scan_custom(matrix_row_t current_matrix[]) {
bool matrix_has_changed = false;
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
select_rows(i);
matrix_row_t row = read_row(i);
unselect_rows();
bool row_has_changed = current_matrix[i] != row;
matrix_has_changed |= row_has_changed;
current_matrix[i] = row;
}
return matrix_has_changed;
}
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