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- /*
- Copyright 2014 Kai Ryu <[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 <avr/interrupt.h>
- #include <avr/pgmspace.h>
- #include "backlight.h"
- #ifdef SOFTPWM_LED_ENABLE
- #include "softpwm_led.h"
- #else
- #include "breathing_led.h"
- #endif
- #include "action.h"
-
- #ifdef BACKLIGHT_ENABLE
-
- static const uint8_t backlight_table[] PROGMEM = {
- 0, 16, 128, 255
- };
-
- inline void backlight_set_raw(uint8_t raw);
-
- #ifdef SOFTPWM_LED_ENABLE
- #ifdef FADING_LED_ENABLE
- extern backlight_config_t backlight_config;
- #endif
- #endif
-
- /* Backlight pin configuration
- * PWM: PB7(OC1C)
- */
- #ifndef SOFTPWM_LED_ENABLE
- void backlight_enable(void)
- {
- // Turn on PWM
- cli();
- DDRB |= (1<<PB7);
- TCCR1A |= ( (1<<WGM10) | (1<<COM1C1) );
- TCCR1B |= ( (1<<CS11) | (1<<CS10) );
- sei();
- }
- void backlight_disable(void)
- {
- // Turn off PWM
- cli();
- DDRB &= ~(1<<PB7);
- TCCR1A &= ~( (1<<WGM10) | (1<<COM1C1) );
- TCCR1B &= ~( (1<<CS11) | (1<<CS10) );
- sei();
- }
- #endif
-
- void backlight_set(uint8_t level)
- {
- #ifdef BREATHING_LED_ENABLE
- switch (level) {
- case 1:
- case 2:
- case 3:
- #ifdef SOFTPWM_LED_ENABLE
- softpwm_enable();
- softpwm_led_enable_all();
- #ifdef FADING_LED_ENABLE
- fading_led_disable_all();
- #endif
- breathing_led_disable_all();
- #else
- backlight_enable();
- breathing_led_disable();
- #endif
- backlight_set_raw(pgm_read_byte(&backlight_table[level]));
- break;
- case 4:
- case 5:
- case 6:
- #ifdef SOFTPWM_LED_ENABLE
- softpwm_enable();
- softpwm_led_enable_all();
- #ifdef FADING_LED_ENABLE
- fading_led_disable_all();
- #endif
- breathing_led_enable_all();
- #else
- backlight_enable();
- breathing_led_enable();
- #endif
- breathing_led_set_duration(6 - level);
- break;
- #ifdef SOFTPWM_LED_ENABLE
- #ifdef FADING_LED_ENABLE
- case 7:
- softpwm_enable();
- softpwm_led_enable_all();
- fading_led_enable_all();
- breathing_led_disable_all();
- fading_led_set_direction_all(FADING_LED_FADE_IN);
- fading_led_set_duration(3);
- break;
- case 8:
- softpwm_enable();
- softpwm_led_enable_all();
- fading_led_enable_all();
- breathing_led_disable_all();
- fading_led_set_direction_all(FADING_LED_FADE_OUT);
- fading_led_set_duration(3);
- break;
- #endif
- #endif
- case 0:
- default:
- #ifdef SOFTPWM_LED_ENABLE
- #ifdef FADING_LED_ENABLE
- fading_led_disable_all();
- #endif
- breathing_led_disable_all();
- softpwm_led_disable_all();
- softpwm_disable();
- #else
- breathing_led_disable();
- backlight_disable();
- #endif
- break;
- }
- #else
- if (level > 0) {
- backlight_enable();
- backlight_set_raw(pgm_read_byte(&backlight_table[level]));
- }
- else {
- backlight_disable();
- }
- #endif
-
- }
-
- #ifndef SOFTPWM_LED_ENABLE
- #ifdef BREATHING_LED_ENABLE
- void breathing_led_set_raw(uint8_t raw)
- {
- backlight_set_raw(raw);
- }
- #endif
- #endif
-
- inline void backlight_set_raw(uint8_t raw)
- {
- #ifdef SOFTPWM_LED_ENABLE
- softpwm_led_set_all(raw);
- #else
- OCR1C = raw;
- #endif
- }
-
- #ifndef LEDMAP_ENABLE
- #ifdef SOFTPWM_LED_ENABLE
- void softpwm_led_init(void)
- {
- DDRB |= (1<<PB7);
- }
-
- void softpwm_led_on(uint8_t index)
- {
- PORTB |= (1<<PB7);
- }
-
- void softpwm_led_off(uint8_t index)
- {
- PORTB &= ~(1<<PB7);
- }
- #endif
- #endif
-
- #ifdef SOFTPWM_LED_ENABLE
- #ifdef FADING_LED_ENABLE
- void action_keyevent(keyevent_t event)
- {
- if (backlight_config.enable) {
- switch (backlight_config.level) {
- case 7:
- if (event.pressed) {
- fading_led_set_delay_all(64);
- softpwm_led_decrease_all(32);
- }
- break;;
- case 8:
- if (event.pressed) {
- fading_led_set_delay_all(64);
- softpwm_led_increase_all(32);
- }
- break;
- }
- }
- }
- #endif
- #endif
-
- #endif
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