matrix_skel.h

   1 #ifndef MATRIX_SKEL_H
   2 #define MATRIX_SKEL_H 1
   3
   4 #include <stdbool.h>
   5
   6 /* number of matrix rows */
   7 uint8_t matrix_rows(void);
   8 /* number of matrix columns */
   9 uint8_t matrix_cols(void);
  10 /* intialize matrix for scaning. should be called once. */
  11 void matrix_init(void);
  12 /* scan all key states on matrix */
  13 uint8_t matrix_scan(void);
  14 /* whether modified from previous scan. used after matrix_scan. */
  15 bool matrix_is_modified(void);
  16 /* whether ghosting occur on matrix. */
  17 bool matrix_has_ghost(void);
  18 /* whether a swtich is on */
  19 bool matrix_is_on(uint8_t row, uint8_t col);
  20 /* matrix state on row */
  21 #if (MATRIX_COLS <= 8)
  22 uint8_t matrix_get_row(uint8_t row);
  23 #else
  24 uint16_t matrix_get_row(uint8_t row);
  25 #endif
  26 /* count keys pressed */
  27 uint8_t matrix_key_count(void);
  28 /* print matrix for debug */
  29 void matrix_print(void);
  30
  31
  32 #endif