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tmk_keyboard_custom/keyboard/RedScarfII/backlight.c

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/*
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Copyright 2014 Kai Ryu <kai1103@gmail.com>
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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 <avr/interrupt.h>
#include <avr/pgmspace.h>
#include "backlight.h"
#ifdef SOFTPWM_LED_ENABLE
#include "softpwm_led.h"
#else
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#include "breathing_led.h"
#endif
#include "action.h"
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#ifdef BACKLIGHT_ENABLE
static const uint8_t backlight_table[] PROGMEM = {
0, 16, 128, 255
};
inline void backlight_set_raw(uint8_t raw);
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#ifdef SOFTPWM_LED_ENABLE
#ifdef FADING_LED_ENABLE
static uint8_t backlight_mode;
#endif
#endif
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/* Backlight pin configuration
* PWM: PB7(OC1C)
*/
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#ifndef SOFTPWM_LED_ENABLE
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void backlight_enable(void)
{
// Turn on PWM
cli();
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DDRB |= (1<<PB7);
TCCR1A |= ( (1<<WGM10) | (1<<COM1C1) );
TCCR1B |= ( (1<<CS11) | (1<<CS10) );
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sei();
}
void backlight_disable(void)
{
// Turn off PWM
cli();
DDRB &= ~(1<<PB7);
TCCR1A &= ~( (1<<WGM10) | (1<<COM1C1) );
TCCR1B &= ~( (1<<CS11) | (1<<CS10) );
sei();
}
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#endif
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void backlight_set(uint8_t level)
{
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#ifdef FADING_LED_ENABLE
backlight_mode = level;
#endif
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#ifdef BREATHING_LED_ENABLE
switch (level) {
case 1:
case 2:
case 3:
#ifdef SOFTPWM_LED_ENABLE
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softpwm_led_enable();
#ifdef FADING_LED_ENABLE
fading_led_disable_all();
#endif
breathing_led_disable_all();
#else
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backlight_enable();
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breathing_led_disable();
#endif
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backlight_set_raw(pgm_read_byte(&backlight_table[level]));
break;
case 4:
case 5:
case 6:
#ifdef SOFTPWM_LED_ENABLE
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softpwm_led_enable();
#ifdef FADING_LED_ENABLE
fading_led_disable_all();
#endif
breathing_led_enable_all();
#else
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backlight_enable();
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breathing_led_enable();
#endif
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breathing_led_set_duration(6 - level);
break;
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#ifdef SOFTPWM_LED_ENABLE
#ifdef FADING_LED_ENABLE
case 7:
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softpwm_led_enable();
fading_led_enable_all();
breathing_led_disable_all();
fading_led_set_direction_all(FADING_LED_FADE_IN);
fading_led_set_duration(3);
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break;
case 8:
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softpwm_led_enable();
fading_led_enable_all();
breathing_led_disable_all();
fading_led_set_direction_all(FADING_LED_FADE_OUT);
fading_led_set_duration(3);
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break;
#endif
#endif
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case 0:
default:
#ifdef SOFTPWM_LED_ENABLE
#ifdef FADING_LED_ENABLE
fading_led_disable_all();
#endif
breathing_led_disable_all();
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softpwm_led_disable();
#else
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breathing_led_disable();
backlight_disable();
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#endif
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break;
}
#else
if (level > 0) {
backlight_enable();
backlight_set_raw(pgm_read_byte(&backlight_table[level]));
}
else {
backlight_disable();
}
#endif
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}
#ifndef SOFTPWM_LED_ENABLE
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#ifdef BREATHING_LED_ENABLE
void breathing_led_set_raw(uint8_t raw)
{
backlight_set_raw(raw);
}
#endif
#endif
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inline void backlight_set_raw(uint8_t raw)
{
#ifdef SOFTPWM_LED_ENABLE
softpwm_led_set_all(raw);
#else
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OCR1C = raw;
#endif
}
#ifndef LEDMAP_ENABLE
#ifdef SOFTPWM_LED_ENABLE
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void softpwm_led_init(void)
{
DDRB |= (1<<PB7);
}
void softpwm_led_on(uint8_t index)
{
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PORTB |= (1<<PB7);
}
void softpwm_led_off(uint8_t index)
{
PORTB &= ~(1<<PB7);
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}
#endif
#endif
#ifdef SOFTPWM_LED_ENABLE
#ifdef FADING_LED_ENABLE
void action_keyevent(keyevent_t event)
{
if (backlight_mode == 7) {
if (event.pressed) {
softpwm_led_decrease_all(32);
}
}
if (backlight_mode == 8) {
if (event.pressed) {
softpwm_led_increase_all(32);
}
}
}
#endif
#endif
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#endif