#define MATRIX_IS_ON(row, col) (matrix_get_row(row) && (1<<col))
+#ifdef __cplusplus
+extern "C" {
+#endif
+
/* number of matrix rows */
uint8_t matrix_rows(void);
/* number of matrix columns */
/* scan all key states on matrix */
uint8_t matrix_scan(void);
/* whether modified from previous scan. used after matrix_scan. */
-bool matrix_is_modified(void);
-/* whether ghosting occur on matrix. */
-bool matrix_has_ghost(void);
+bool matrix_is_modified(void) __attribute__ ((deprecated));
/* whether a swtich is on */
bool matrix_is_on(uint8_t row, uint8_t col);
/* matrix state on row */
-matrix_row_t matrix_get_row(uint8_t row);
-/* count keys pressed */
-uint8_t matrix_key_count(void);
+matrix_row_t matrix_get_row(uint8_t row);
/* print matrix for debug */
void matrix_print(void);
+/* power control */
+void matrix_power_up(void);
+void matrix_power_down(void);
+
+#ifdef __cplusplus
+}
+#endif
+
#endif