tmk
12 years ago
2 changed files with 28 additions and 7 deletions
+ 2
- 0
macway/config.h
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| #define MATRIX_COLS 8 | #define MATRIX_COLS 8 | ||||
| /* define if matrix has ghost */ | /* define if matrix has ghost */ | ||||
| #define MATRIX_HAS_GHOST | #define MATRIX_HAS_GHOST | ||||
| /* Set 0 if need no debouncing */ | |||||
| #define DEBOUNCE 5 | |||||
| /* key combination for command */ | /* key combination for command */ |
+ 26
- 7
macway/matrix.c
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| #include <avr/io.h> | #include <avr/io.h> | ||||
| #include <util/delay.h> | #include <util/delay.h> | ||||
| #include "print.h" | #include "print.h" | ||||
| #include "debug.h" | |||||
| #include "util.h" | #include "util.h" | ||||
| #include "matrix.h" | #include "matrix.h" | ||||
| #endif | #endif | ||||
| #ifndef DEBOUNCE | |||||
| # define DEBOUNCE 0 | |||||
| #endif | |||||
| static uint8_t debouncing = DEBOUNCE; | |||||
| // matrix state buffer(1:on, 0:off) | // matrix state buffer(1:on, 0:off) | ||||
| #if (MATRIX_COLS <= 8) | #if (MATRIX_COLS <= 8) | ||||
| static uint8_t *matrix; | static uint8_t *matrix; | ||||
| uint8_t matrix_scan(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++) { | for (uint8_t i = 0; i < MATRIX_ROWS; i++) { | ||||
| unselect_rows(); | unselect_rows(); | ||||
| select_row(i); | select_row(i); | ||||
| _delay_us(30); // without this wait read unstable value. | _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(); | unselect_rows(); | ||||
| if (debouncing) { | |||||
| debouncing--; | |||||
| } | |||||
| return 1; | return 1; | ||||
| } | } | ||||
| bool matrix_is_modified(void) | bool matrix_is_modified(void) | ||||
| { | { | ||||
| if (debouncing) return false; | |||||
| for (uint8_t i = 0; i < MATRIX_ROWS; i++) { | for (uint8_t i = 0; i < MATRIX_ROWS; i++) { | ||||
| if (matrix[i] != matrix_prev[i]) | |||||
| if (matrix[i] != matrix_prev[i]) { | |||||
| return true; | return true; | ||||
| } | |||||
| } | } | ||||
| return false; | return false; | ||||
| } | } |
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