mirror of
https://github.com/Keychron/qmk_firmware.git
synced 2024-11-28 03:26:51 +06:00
59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
/*
|
|
Copyright 2013 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 <avr/io.h>
|
|
#include "backlight.h"
|
|
|
|
/* 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)
|
|
{
|
|
// Set as output.
|
|
DDRB |= (1<<1) | (1<<2) | (1<<3) | (1<<4);
|
|
DDRD |= (1<<7);
|
|
|
|
// F-row
|
|
if(level & (1<<0))
|
|
{
|
|
PORTB |= (1<<1);
|
|
}
|
|
else
|
|
{
|
|
PORTB &= ~(1<<1);
|
|
}
|
|
// WASD
|
|
if(level & (1<<1))
|
|
{
|
|
PORTB &= ~(1<<4);
|
|
PORTB &= ~(1<<2);
|
|
PORTB &= ~(1<<3);
|
|
PORTD &= ~(1<<7);
|
|
}
|
|
else
|
|
{
|
|
PORTB |= (1<<4);
|
|
PORTB |= (1<<2);
|
|
PORTB |= (1<<3);
|
|
PORTD |= (1<<7);
|
|
}
|
|
}
|