|
|
|
@ -28,29 +28,19 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
#include "matrix.h"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#if (MATRIX_COLS > 16)
|
|
|
|
|
# error "MATRIX_COLS must not exceed 16"
|
|
|
|
|
#endif
|
|
|
|
|
#if (MATRIX_ROWS > 255)
|
|
|
|
|
# error "MATRIX_ROWS must not exceed 255"
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#ifndef DEBOUNCE
|
|
|
|
|
# define DEBOUNCE 5
|
|
|
|
|
#endif
|
|
|
|
|
static uint8_t debouncing = DEBOUNCE;
|
|
|
|
|
|
|
|
|
|
// matrix state buffer(1:on, 0:off)
|
|
|
|
|
static matrix_row_t *matrix;
|
|
|
|
|
static matrix_row_t *matrix_debouncing;
|
|
|
|
|
static matrix_row_t matrix0[MATRIX_ROWS];
|
|
|
|
|
static matrix_row_t matrix1[MATRIX_ROWS];
|
|
|
|
|
/* matrix state(1:on, 0:off) */
|
|
|
|
|
static matrix_row_t matrix[MATRIX_ROWS];
|
|
|
|
|
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
|
|
|
|
|
|
|
|
|
|
#ifdef MATRIX_HAS_GHOST
|
|
|
|
|
static bool matrix_has_ghost_in_row(uint8_t row);
|
|
|
|
|
#endif
|
|
|
|
|
static matrix_row_t read_col(void);
|
|
|
|
|
static matrix_row_t read_cols(void);
|
|
|
|
|
static void unselect_rows(void);
|
|
|
|
|
static void select_row(uint8_t row);
|
|
|
|
|
|
|
|
|
@ -77,36 +67,34 @@ void matrix_init(void)
|
|
|
|
|
|
|
|
|
|
// initialize matrix state: all keys off
|
|
|
|
|
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
|
|
|
|
|
matrix0[i] = 0;
|
|
|
|
|
matrix1[i] = 0;
|
|
|
|
|
matrix[i] = 0;
|
|
|
|
|
matrix_debouncing[i] = 0;
|
|
|
|
|
}
|
|
|
|
|
matrix = matrix0;
|
|
|
|
|
matrix_debouncing = matrix1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
uint8_t matrix_scan(void)
|
|
|
|
|
{
|
|
|
|
|
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
|
|
|
|
unselect_rows();
|
|
|
|
|
select_row(i);
|
|
|
|
|
_delay_us(30); // without this wait read unstable value.
|
|
|
|
|
if (matrix[i] != read_col()) {
|
|
|
|
|
matrix[i] = read_col();
|
|
|
|
|
matrix_row_t cols = read_cols();
|
|
|
|
|
if (matrix_debouncing[i] != cols) {
|
|
|
|
|
matrix_debouncing[i] = cols;
|
|
|
|
|
if (debouncing) {
|
|
|
|
|
debug("bounce!: "); debug_hex(debouncing); print("\n");
|
|
|
|
|
debug("bounce!: "); debug_hex(debouncing); debug("\n");
|
|
|
|
|
}
|
|
|
|
|
debouncing = DEBOUNCE;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
unselect_rows();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (debouncing) {
|
|
|
|
|
if (--debouncing) {
|
|
|
|
|
_delay_ms(1);
|
|
|
|
|
} else {
|
|
|
|
|
matrix_row_t *tmp = matrix;
|
|
|
|
|
matrix = matrix_debouncing;
|
|
|
|
|
matrix_debouncing = tmp;
|
|
|
|
|
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
|
|
|
|
matrix[i] = matrix_debouncing[i];
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
@ -123,7 +111,7 @@ bool matrix_is_modified(void)
|
|
|
|
|
inline
|
|
|
|
|
bool matrix_is_on(uint8_t row, uint8_t col)
|
|
|
|
|
{
|
|
|
|
|
return (matrix[row] & (1<<col));
|
|
|
|
|
return (matrix[row] & ((matrix_row_t)1<<col));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
inline
|
|
|
|
@ -137,11 +125,7 @@ void matrix_print(void)
|
|
|
|
|
print("\nr/c 01234567\n");
|
|
|
|
|
for (uint8_t row = 0; row < matrix_rows(); row++) {
|
|
|
|
|
phex(row); print(": ");
|
|
|
|
|
#if (MATRIX_COLS <= 8)
|
|
|
|
|
pbin_reverse(matrix_get_row(row));
|
|
|
|
|
#else
|
|
|
|
|
pbin_reverse16(matrix_get_row(row));
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef MATRIX_HAS_GHOST
|
|
|
|
|
if (matrix_has_ghost_in_row(row)) {
|
|
|
|
|
print(" <ghost");
|
|
|
|
@ -151,19 +135,6 @@ void matrix_print(void)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
uint8_t matrix_key_count(void)
|
|
|
|
|
{
|
|
|
|
|
uint8_t count = 0;
|
|
|
|
|
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
|
|
|
|
#if (MATRIX_COLS <= 8)
|
|
|
|
|
count += bitpop(matrix[i]);
|
|
|
|
|
#else
|
|
|
|
|
count += bitpop16(matrix[i]);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
return count;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef MATRIX_HAS_GHOST
|
|
|
|
|
inline
|
|
|
|
|
static bool matrix_has_ghost_in_row(uint8_t row)
|
|
|
|
@ -174,7 +145,7 @@ static bool matrix_has_ghost_in_row(uint8_t row)
|
|
|
|
|
|
|
|
|
|
// ghost exists in case same state as other row
|
|
|
|
|
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
|
|
|
|
|
if (i != row && (matrix[i] & matrix[row]) == matrix[row])
|
|
|
|
|
if (i != row && (matrix[i] & matrix[row]))
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
return false;
|
|
|
|
@ -182,7 +153,7 @@ static bool matrix_has_ghost_in_row(uint8_t row)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
inline
|
|
|
|
|
static matrix_row_t read_col(void)
|
|
|
|
|
static matrix_row_t read_cols(void)
|
|
|
|
|
{
|
|
|
|
|
return ~PINB;
|
|
|
|
|
}
|
|
|
|
|