tmk
12 years ago
2 changed files with 28 additions and 7 deletions
+ 2
- 0
macway/config.h
View File
| @@ -33,6 +33,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. | |||
| #define MATRIX_COLS 8 | |||
| /* define if matrix has ghost */ | |||
| #define MATRIX_HAS_GHOST | |||
| /* Set 0 if need no debouncing */ | |||
| #define DEBOUNCE 5 | |||
| /* key combination for command */ | |||
+ 26
- 7
macway/matrix.c
View File
| @@ -23,6 +23,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. | |||
| #include <avr/io.h> | |||
| #include <util/delay.h> | |||
| #include "print.h" | |||
| #include "debug.h" | |||
| #include "util.h" | |||
| #include "matrix.h" | |||
| @@ -35,6 +36,11 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. | |||
| #endif | |||
| #ifndef DEBOUNCE | |||
| # define DEBOUNCE 0 | |||
| #endif | |||
| static uint8_t debouncing = DEBOUNCE; | |||
| // matrix state buffer(1:on, 0:off) | |||
| #if (MATRIX_COLS <= 8) | |||
| static uint8_t *matrix; | |||
| @@ -85,27 +91,40 @@ void matrix_init(void) | |||
| uint8_t matrix_scan(void) | |||
| { | |||
| uint8_t *tmp; | |||
| tmp = matrix_prev; | |||
| matrix_prev = matrix; | |||
| matrix = tmp; | |||
| if (!debouncing) { | |||
| uint8_t *tmp = matrix_prev; | |||
| matrix_prev = matrix; | |||
| matrix = tmp; | |||
| } | |||
| for (uint8_t i = 0; i < MATRIX_ROWS; i++) { | |||
| unselect_rows(); | |||
| select_row(i); | |||
| _delay_us(30); // without this wait read unstable value. | |||
| matrix[i] = ~read_col(); | |||
| if (matrix[i] != (uint8_t)~read_col()) { | |||
| matrix[i] = (uint8_t)~read_col(); | |||
| if (debouncing) { | |||
| debug("bounce!: "); debug_hex(debouncing); print("\n"); | |||
| } | |||
| debouncing = DEBOUNCE; | |||
| } | |||
| } | |||
| unselect_rows(); | |||
| if (debouncing) { | |||
| debouncing--; | |||
| } | |||
| return 1; | |||
| } | |||
| bool matrix_is_modified(void) | |||
| { | |||
| if (debouncing) return false; | |||
| for (uint8_t i = 0; i < MATRIX_ROWS; i++) { | |||
| if (matrix[i] != matrix_prev[i]) | |||
| if (matrix[i] != matrix_prev[i]) { | |||
| return true; | |||
| } | |||
| } | |||
| return false; | |||
| } | |||
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