66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/*
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Copyright 2014 Ralf Schmitt <ralf@bunkertor.net>
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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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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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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 <avr/io.h>
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#include "backlight.h"
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/* Backlight pin configuration
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*
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* HOME_ROW : PD1
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* FUNCTIONS: PD0
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*/
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void backlight_init_ports() {
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DDRD |= (1<<0) | (1<<1);
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//PORTD |= (1<<0) | (1<<1);
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DDRD |= (1<<6);
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PORTD |= (1<<6);
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}
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void backlight_set(uint8_t level) {
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(level & BACKLIGHT_FNCT) ? backlight_enable_fn() : backlight_disable_fn();
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(level & BACKLIGHT_HOME) ? backlight_enable_home() : backlight_disable_home();
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}
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void backlight_enable_fn() {
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DDRD |= (1<<0) | (1<<1);
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PORTD |= (1<<0);
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}
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void backlight_disable_fn() {
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DDRD |= (1<<0) | (1<<1);
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PORTD &= ~(1<<0);
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}
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void backlight_invert_fn() {
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DDRD |= (1<<0) | (1<<1);
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PORTD ^= (1<<0);
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}
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void backlight_enable_home() {
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DDRD |= (1<<0) | (1<<1);
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PORTD |= (1<<1);
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}
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void backlight_disable_home() {
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DDRD |= (1<<0) | (1<<1);
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PORTD &= ~(1<<1);
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}
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void backlight_invert_home() {
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DDRD |= (1<<0) | (1<<1);
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PORTD ^= (1<<1);
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}
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