tmk
11 years ago
1 changed files with 27 additions and 28 deletions
+ 27
- 28
keyboard/gh60/matrix.c
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| #endif | #endif | ||||
| static uint8_t debouncing = DEBOUNCE; | 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; | ||||
| 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 uint16_t read_cols(void); | ||||
| static void init_cols(void); | static void init_cols(void); | ||||
| init_cols(); | init_cols(); | ||||
| // initialize matrix state: all keys off | // 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) | 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++) { | for (uint8_t i = 0; i < MATRIX_ROWS; i++) { | ||||
| unselect_rows(); | |||||
| //unselect_rows(); | |||||
| select_row(i); | 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(); | uint16_t cols = read_cols(); | ||||
| if (matrix[i] != cols) { | |||||
| matrix[i] = cols; | |||||
| if (matrix_debouncing[i] != cols) { | |||||
| matrix_debouncing[i] = cols; | |||||
| if (debouncing) { | if (debouncing) { | ||||
| debug("bounce!: "); debug_hex(debouncing); print("\n"); | |||||
| debug("bounce!: "); debug_hex(debouncing); debug("\n"); | |||||
| } | } | ||||
| debouncing = DEBOUNCE; | debouncing = DEBOUNCE; | ||||
| is_modified = false; | |||||
| } | } | ||||
| unselect_rows(); | |||||
| } | } | ||||
| unselect_rows(); | |||||
| //unselect_rows(); | |||||
| if (debouncing) { | if (debouncing) { | ||||
| 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; | 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++) { | |||||
| if (matrix[i] != matrix_prev[i]) { | |||||
| return true; | |||||
| } | |||||
| } | |||||
| return false; | |||||
| return is_modified; | |||||
| } | } | ||||
| inline | inline |
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