diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/keyboard.c | 25 | ||||
| -rw-r--r-- | common/matrix.h | 4 |
2 files changed, 24 insertions, 5 deletions
diff --git a/common/keyboard.c b/common/keyboard.c index 432ea89347..91f321d9ca 100644 --- a/common/keyboard.c +++ b/common/keyboard.c @@ -34,6 +34,24 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. #endif +#ifdef MATRIX_HAS_GHOST +static bool has_ghost_in_row(uint8_t row) +{ + matrix_row_t matrix_row = matrix_get_row(row); + // No ghost exists when less than 2 keys are down on the row + if (((matrix_row - 1) & matrix_row) == 0) + return false; + + // Ghost occurs when the row shares column line with other row + for (uint8_t i=0; i < MATRIX_ROWS; i++) { + if (i != row && (matrix_get_row(i) & matrix_row)) + return true; + } + return false; +} +#endif + + void keyboard_init(void) { // TODO: configuration of sendchar impl @@ -81,7 +99,12 @@ void keyboard_task(void) matrix_change = matrix_row ^ matrix_prev[r]; if (matrix_change) { if (debug_matrix) matrix_print(); - +#ifdef MATRIX_HAS_GHOST + if (has_ghost_in_row(r)) { + matrix_prev[r] = matrix_row; + continue; + } +#endif for (uint8_t c = 0; c < MATRIX_COLS; c++) { if (matrix_change & ((matrix_row_t)1<<c)) { action_exec((keyevent_t){ diff --git a/common/matrix.h b/common/matrix.h index b3332d5ff9..d62acb6683 100644 --- a/common/matrix.h +++ b/common/matrix.h @@ -45,14 +45,10 @@ void matrix_init(void); 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); /* 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); /* print matrix for debug */ void matrix_print(void); |