core: Clean up code of Locking key support

[max/tmk_keyboard.git] / keyboard / alps64 / matrix.c

diff --git a/keyboard/alps64/matrix.c b/keyboard/alps64/matrix.c
index 5638d7f69d9ef63f72490cd7a5485041ce23e5ce..1082773fca7dbbb154c635127d598b23984b35f3 100644 (file)
--- a/keyboard/alps64/matrix.c
+++ b/keyboard/alps64/matrix.c
@@ -25,13 +25,15 @@ 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];
@@ -43,18 +45,6 @@ static void unselect_rows(void);
 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;
-}
-
 #define LED_ON()    do { DDRC |= (1<<5); PORTC |= (1<<5); } while (0)
 #define LED_OFF()   do { DDRC &= ~(1<<5); PORTC &= ~(1<<5); } while (0)
 #define LED_TGL()   do { DDRC |= (1<<5); PINC |= (1<<5); } while (0)
@@ -82,53 +72,35 @@ 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(30);  // 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;
 }
 
-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");
-    }
-}
-
 /* Column pin configuration
  * col: 0   1   2   3   4   5   6   7
  * pin: B0  B1  B2  B3  B4  B5  B6  B7