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- /*
- Copyright 2014 Ralf Schmitt <[email protected]>
-
- 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"
- #include "led.h"
-
- void backlight_init_ports()
- {
- DDRB |= 0b11100000; // PB7 (switch), PB6 (pcb), PB5 (caps)
- }
-
- void led_set(uint8_t usb_led)
- {
- (usb_led & (1<<USB_LED_CAPS_LOCK)) ? backlight_caps_enable() : backlight_caps_disable();
- }
-
- 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 |= 0b10000000;
- }
-
- void backlight_switch_disable()
- {
- PORTB &= ~0b10000000;
- }
-
- void backlight_switch_invert()
- {
- PORTB ^= 0b10000000;
- }
-
- void backlight_pcb_enable()
- {
- PORTB |= 0b01000000;
- }
-
- void backlight_pcb_disable()
- {
- PORTB &= ~0b01000000;
- }
-
- void backlight_pcb_invert()
- {
- PORTB ^= 0b01000000;
- }
-
- void backlight_caps_enable()
- {
- PORTB |= 0b00100000;
- }
-
- void backlight_caps_disable()
- {
- PORTB &= ~0b00100000;
- }
-
- void backlight_caps_invert()
- {
- PORTB ^= 0b00100000;
- }
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