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Merge branch 'master' of github.com:tmk/tmk_keyboard

led_matrix
tmk 11 年前
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共有 1 个文件被更改，包括 11 次插入 和 15 次删除
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      keyboard/phantom/matrix.c

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keyboard/phantom/matrix.c 查看文件

static uint8_t debouncing = DEBOUNCE; static uint8_t debouncing = DEBOUNCE;


// bit array of key state(1:on, 0:off) // bit array of key state(1:on, 0:off)
static matrix_row_t *matrix;
static matrix_row_t *matrix_debounced;
static matrix_row_t matrix0[MATRIX_ROWS];
static matrix_row_t matrix1[MATRIX_ROWS];
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[MATRIX_ROWS];




#define _DDRA (uint8_t *const)&DDRA #define _DDRA (uint8_t *const)&DDRA


// initialize matrix state: all keys off // initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) { for (uint8_t i=0; i < MATRIX_ROWS; i++) {
matrix0[i] = 0;
matrix1[i] = 0;
matrix[i] = 0;
matrix_debouncing[i] = 0;
} }
matrix = matrix0;
matrix_debounced = matrix1;
} }


uint8_t matrix_scan(void) uint8_t matrix_scan(void)
pull_column(col); // output hi on theline pull_column(col); // output hi on theline
_delay_us(3); // without this wait it won't read stable value. _delay_us(3); // without this wait it won't read stable value.
for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-5 for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-5
bool prev_bit = matrix[row] & ((matrix_row_t)1<<col);
bool prev_bit = matrix_debouncing[row] & ((matrix_row_t)1<<col);
bool curr_bit = !(*row_pin[row] & row_bit[row]); bool curr_bit = !(*row_pin[row] & row_bit[row]);
if (prev_bit != curr_bit) { if (prev_bit != curr_bit) {
matrix[row] ^= ((matrix_row_t)1<<col);
matrix_debouncing[row] ^= ((matrix_row_t)1<<col);
if (debouncing) { if (debouncing) {
debug("bounce!: "); debug_hex(debouncing); print("\n"); debug("bounce!: "); debug_hex(debouncing); print("\n");
} }
if (--debouncing) { if (--debouncing) {
_delay_ms(1); _delay_ms(1);
} else { } else {
matrix_row_t *tmp = matrix_debounced;
matrix_debounced = matrix;
matrix = tmp;
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = matrix_debouncing[i];
}
} }
} }


inline inline
bool matrix_is_on(uint8_t row, uint8_t col) bool matrix_is_on(uint8_t row, uint8_t col)
{ {
return (matrix_debounced[row] & ((matrix_row_t)1<<col));
return (matrix[row] & ((matrix_row_t)1<<col));
} }


inline inline
matrix_row_t matrix_get_row(uint8_t row) matrix_row_t matrix_get_row(uint8_t row)
{ {
return matrix_debounced[row];
return matrix[row];
} }


void matrix_print(void) void matrix_print(void)