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