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@@ -24,10 +24,8 @@ |
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static uint8_t debouncing = DEBOUNCE; |
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// bit array of key state(1:on, 0:off) |
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static matrix_row_t *matrix; |
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static matrix_row_t *matrix_debounced; |
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static matrix_row_t matrix0[MATRIX_ROWS]; |
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static matrix_row_t matrix1[MATRIX_ROWS]; |
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static matrix_row_t matrix[MATRIX_ROWS]; |
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static matrix_row_t matrix_debouncing[MATRIX_ROWS]; |
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#define _DDRA (uint8_t *const)&DDRA |
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@@ -165,11 +163,9 @@ void matrix_init(void) |
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// initialize matrix state: all keys off |
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for (uint8_t i=0; i < MATRIX_ROWS; i++) { |
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matrix0[i] = 0; |
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matrix1[i] = 0; |
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matrix[i] = 0; |
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matrix_debouncing[i] = 0; |
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} |
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matrix = matrix0; |
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matrix_debounced = matrix1; |
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} |
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uint8_t matrix_scan(void) |
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@@ -178,10 +174,10 @@ uint8_t matrix_scan(void) |
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pull_column(col); // output hi on theline |
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_delay_us(3); // without this wait it won't read stable value. |
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for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-5 |
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bool prev_bit = matrix[row] & ((matrix_row_t)1<<col); |
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bool prev_bit = matrix_debouncing[row] & ((matrix_row_t)1<<col); |
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bool curr_bit = !(*row_pin[row] & row_bit[row]); |
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if (prev_bit != curr_bit) { |
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matrix[row] ^= ((matrix_row_t)1<<col); |
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matrix_debouncing[row] ^= ((matrix_row_t)1<<col); |
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if (debouncing) { |
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debug("bounce!: "); debug_hex(debouncing); print("\n"); |
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} |
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@@ -195,9 +191,9 @@ uint8_t matrix_scan(void) |
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if (--debouncing) { |
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_delay_ms(1); |
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} else { |
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matrix_row_t *tmp = matrix_debounced; |
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matrix_debounced = matrix; |
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matrix = tmp; |
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) { |
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matrix[i] = matrix_debouncing[i]; |
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} |
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} |
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} |
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@@ -213,13 +209,13 @@ bool matrix_is_modified(void) |
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inline |
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bool matrix_is_on(uint8_t row, uint8_t col) |
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{ |
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return (matrix_debounced[row] & ((matrix_row_t)1<<col)); |
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return (matrix[row] & ((matrix_row_t)1<<col)); |
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} |
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inline |
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matrix_row_t matrix_get_row(uint8_t row) |
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{ |
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return matrix_debounced[row]; |
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return matrix[row]; |
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} |
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void matrix_print(void) |
Mathias Andersson
11 年之前