Jack Humbert
GitHub
@@ -51,17 +51,20 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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#endif
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#ifdef MATRIX_HAS_GHOST
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static bool is_row_ghosting(uint8_t row){
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matrix_row_t state = matrix_get_row(row);
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/* no ghosting happens when only one key in the row is pressed */
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if (!(state - 1 & state)) return false;
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/* ghosting occurs when two keys in the same column are pressed */
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for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
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if (r != row && matrix_get_row(r) & state) return true;
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static bool has_ghost_in_row(uint8_t row)
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{
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matrix_row_t matrix_row = matrix_get_row(row);
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// No ghost exists when less than 2 keys are down on the row
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if (((matrix_row - 1) & matrix_row) == 0)
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return false;
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// Ghost occurs when the row shares column line with other row
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for (uint8_t i=0; i < MATRIX_ROWS; i++) {
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if (i != row && (matrix_get_row(i) & matrix_row))
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return true;
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}
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return false;
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}
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#endif
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__attribute__ ((weak))
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@@ -100,72 +103,86 @@ void keyboard_init(void) {
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#endif
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}
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/* does routine keyboard jobs */
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void keyboard_task(void) {
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static uint8_t led_status;
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matrix_scan();
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for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
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static matrix_row_t previous_matrix[MATRIX_ROWS];
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matrix_row_t state = matrix_get_row(r);
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matrix_row_t changes = state ^ previous_matrix[r];
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if (changes) {
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/*
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* Do keyboard routine jobs: scan mantrix, light LEDs, ...
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* This is repeatedly called as fast as possible.
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*/
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void keyboard_task(void)
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{
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static matrix_row_t matrix_prev[MATRIX_ROWS];
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#ifdef MATRIX_HAS_GHOST
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static matrix_row_t deghosting_matrix[MATRIX_ROWS];
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if (is_row_ghosting(r)) {
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/* debugs the deghosting mechanism */
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/* doesn't update previous_matrix until the ghosting has stopped
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* in order to prevent the last key from being lost
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static matrix_row_t matrix_ghost[MATRIX_ROWS];
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#endif
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static uint8_t led_status = 0;
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matrix_row_t matrix_row = 0;
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matrix_row_t matrix_change = 0;
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matrix_scan();
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for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
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matrix_row = matrix_get_row(r);
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matrix_change = matrix_row ^ matrix_prev[r];
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if (matrix_change) {
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#ifdef MATRIX_HAS_GHOST
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if (has_ghost_in_row(r)) {
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/* Keep track of whether ghosted status has changed for
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* debugging. But don't update matrix_prev until un-ghosted, or
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* the last key would be lost.
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*/
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if (debug_matrix && deghosting_matrix[r] != state) {
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if (debug_matrix && matrix_ghost[r] != matrix_row) {
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matrix_print();
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}
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deghosting_matrix[r] = state;
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matrix_ghost[r] = matrix_row;
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continue;
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}
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deghosting_matrix[r] = state;
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matrix_ghost[r] = matrix_row;
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#endif
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if (debug_matrix) matrix_print();
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for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
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matrix_row_t mask = (matrix_row_t)1 << c;
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if (changes & mask) {
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keyevent_t event;
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event.key = (keypos_t){ .row = r, .col = c };
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event.pressed = state & mask;
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/* the time should not be 0 */
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event.time = timer_read() | 1;
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action_exec(event);
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/* records the processed key event */
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previous_matrix[r] ^= mask;
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/* processes one key event per call */
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goto event_processed;
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for (uint8_t c = 0; c < MATRIX_COLS; c++) {
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if (matrix_change & ((matrix_row_t)1<<c)) {
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action_exec((keyevent_t){
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.key = (keypos_t){ .row = r, .col = c },
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.pressed = (matrix_row & ((matrix_row_t)1<<c)),
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.time = (timer_read() | 1) /* time should not be 0 */
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});
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// record a processed key
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matrix_prev[r] ^= ((matrix_row_t)1<<c);
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// process a key per task call
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goto MATRIX_LOOP_END;
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}
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}
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}
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}
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/* sends tick events when the keyboard is idle */
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// call with pseudo tick event when no real key event.
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action_exec(TICK);
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event_processed:
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MATRIX_LOOP_END:
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#ifdef MOUSEKEY_ENABLE
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/* repeats and accelerates the mouse keys */
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// mousekey repeat & acceleration
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mousekey_task();
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#endif
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#ifdef PS2_MOUSE_ENABLE
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ps2_mouse_task();
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#endif
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#ifdef SERIAL_MOUSE_ENABLE
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serial_mouse_task();
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serial_mouse_task();
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#endif
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#ifdef ADB_MOUSE_ENABLE
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adb_mouse_task();
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adb_mouse_task();
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#endif
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/* updates the LEDs */
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// update LED
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if (led_status != host_keyboard_leds()) {
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led_status = host_keyboard_leds();
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keyboard_set_leds(led_status);
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}
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}
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void keyboard_set_leds(uint8_t leds) {
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if (debug_keyboard) dprintf("Keyboard LEDs state: %x\n", leds);
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void keyboard_set_leds(uint8_t leds)
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{
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if (debug_keyboard) { debug("keyboard_set_led: "); debug_hex8(leds); debug("\n"); }
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led_set(leds);
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}
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