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Fix debouncing code.(gh60)

tags/v1.9
tmk 11 years ago
parent
commit
9dfc611ae1
1 changed files with 27 additions and 28 deletions
  1. 27
    28
      keyboard/gh60/matrix.c

+ 27
- 28
keyboard/gh60/matrix.c View File

@@ -33,11 +33,12 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#endif
static uint8_t debouncing = DEBOUNCE;

// matrix state buffer(1:on, 0:off)
/* matrix state(1:on, 0:off) */
static uint16_t *matrix;
static uint16_t *matrix_prev;
static uint16_t _matrix0[MATRIX_ROWS];
static uint16_t _matrix1[MATRIX_ROWS];
static uint16_t *matrix_debouncing;
static uint16_t matrix0[MATRIX_ROWS];
static uint16_t matrix1[MATRIX_ROWS];
static bool is_modified;

static uint16_t read_cols(void);
static void init_cols(void);
@@ -64,38 +65,42 @@ void matrix_init(void)
init_cols();

// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0;
for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix1[i] = 0;
matrix = _matrix0;
matrix_prev = _matrix1;
matrix = matrix0;
matrix_debouncing = matrix1;
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
matrix[i] = 0;
matrix_debouncing[i] = 0;
}
is_modified = false;
}

uint8_t matrix_scan(void)
{
if (!debouncing) {
uint16_t *tmp = matrix_prev;
matrix_prev = matrix;
matrix = tmp;
}

for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
unselect_rows();
//unselect_rows();
select_row(i);
_delay_us(1); // without this wait read unstable value.
_delay_us(30); // without this wait read unstable value.
uint16_t cols = read_cols();
if (matrix[i] != cols) {
matrix[i] = 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;
is_modified = false;
}
unselect_rows();
}
unselect_rows();
//unselect_rows();

if (debouncing) {
debouncing--;
_delay_ms(1); // improved affect on bouncing
_delay_ms(1);
} else {
uint16_t *tmp = matrix;
matrix = matrix_debouncing;
matrix_debouncing = tmp;
is_modified = true;
}

return 1;
@@ -103,13 +108,7 @@ uint8_t matrix_scan(void)

bool matrix_is_modified(void)
{
if (debouncing) return false;
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
if (matrix[i] != matrix_prev[i]) {
return true;
}
}
return false;
return is_modified;
}

inline

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