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/*
Copyright 2014 Ralf Schmitt < ralf @ bunkertor . net >
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"
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# include "led.h"
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void backlight_init_ports ( )
{
DDRB | = 0 b11100000 ; // PB7 (switch), PB6 (pcb), PB5 (caps)
}
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void led_set ( uint8_t usb_led )
{
( usb_led & ( 1 < < USB_LED_CAPS_LOCK ) ) ? backlight_caps_enable ( ) : backlight_caps_disable ( ) ;
}
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void backlight_set ( uint8_t level )
{
( level & BACKLIGHT_SWITCH ) ? backlight_switch_enable ( ) : backlight_switch_disable ( ) ;
( level & BACKLIGHT_PCB ) ? backlight_pcb_enable ( ) : backlight_pcb_disable ( ) ;
}
void backlight_switch_enable ( )
{
PORTB | = 0 b10000000 ;
}
void backlight_switch_disable ( )
{
PORTB & = ~ 0 b10000000 ;
}
void backlight_switch_invert ( )
{
PORTB ^ = 0 b10000000 ;
}
void backlight_pcb_enable ( )
{
PORTB | = 0 b01000000 ;
}
void backlight_pcb_disable ( )
{
PORTB & = ~ 0 b01000000 ;
}
void backlight_pcb_invert ( )
{
PORTB ^ = 0 b01000000 ;
}
void backlight_caps_enable ( )
{
PORTB | = 0 b00100000 ;
}
void backlight_caps_disable ( )
{
PORTB & = ~ 0 b00100000 ;
}
void backlight_caps_invert ( )
{
PORTB ^ = 0 b00100000 ;
}