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| -rw-r--r-- | quantum/matrix.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/quantum/matrix.c b/quantum/matrix.c index 412662a794..4f1564ac87 100644 --- a/quantum/matrix.c +++ b/quantum/matrix.c @@ -66,6 +66,30 @@ uint8_t matrix_cols(void) { return MATRIX_COLS; } +void matrix_power_up(void) { +#if DIODE_DIRECTION == COL2ROW + for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) { + /* DDRxn */ + _SFR_IO8(row_pins[r].input_addr + 1) |= _BV(row_pins[r].bit); + toggle_row(r); + } + for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) { + /* PORTxn */ + _SFR_IO8(col_pins[c].input_addr + 2) |= _BV(col_pins[c].bit); + } +#else + for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) { + /* DDRxn */ + _SFR_IO8(col_pins[c].input_addr + 1) |= _BV(col_pins[c].bit); + toggle_col(c); + } + for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) { + /* PORTxn */ + _SFR_IO8(row_pins[r].input_addr + 2) |= _BV(row_pins[r].bit); + } +#endif +} + void matrix_init(void) { /* frees PORTF by setting the JTD bit twice within four cycles */ #ifdef __AVR_ATmega32U4__ |