/* Copyright 2017-2019 Mathias Andersson <wraul@dbox.se> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "kmac.h" #define F_ROW_MASK 0b01 #define WASD_MASK 0b10 void backlight_init_ports(void) { setPinOutput(B1); setPinOutput(B2); setPinOutput(B3); setPinOutput(B4); setPinOutput(D7); } /* Backlight pin configuration * F-row: High PB1 * W: Low PB4 * A: Low PB2 * S: Low PB3 * D: Low PD7 */ void backlight_set(uint8_t level) { // F-row if (level & F_ROW_MASK) { writePinHigh(B1); } else { writePinLow(B1); } // WASD if (level & WASD_MASK) { writePinLow(B2); writePinLow(B3); writePinLow(B4); writePinLow(D7); } else { writePinHigh(B2); writePinHigh(B3); writePinHigh(B4); writePinHigh(D7); } }