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- /*
- Copyright 2013,2014 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 uint8_t backlight_mode;
-
- void backlight_enable(void);
- void backlight_disable(void);
- inline void backlight_set_raw(uint8_t raw);
-
- #ifndef SOFTPWM_LED_ENABLE
- #ifdef GH60_REV_CHN
- #else
- #define SOFTPWM_TIMER_TOP F_CPU/(256*64)
- uint8_t softpwm_ocr = 0;
- uint8_t softpwm_ocr_buff = 0;
- #endif
- #endif
-
- static const uint8_t backlight_table[] PROGMEM = {
- 0, 16, 128, 255
- };
-
- /* Backlight pin configuration
- * PWM: PB6 (Rev.CHN)
- * GPIO: PF7 PF6 PF5 PF4 (Rev.B)
- */
- void backlight_enable(void)
- {
- #ifdef SOFTPWM_LED_ENABLE
- softpwm_led_enable();
- #else
- #if defined(GH60_REV_CHN)
- // Turn on PWM
- DDRB |= (1<<PB6);
- cli();
- TCCR1A |= ((1<<WGM10) | (1<<COM1B1));
- TCCR1B |= ((1<<CS11) | (1<<CS10));
- sei();
- #else
- DDRF |= (1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
- PORTF |= (1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
- cli();
- TCCR1B |= (1<<WGM12);
- TCCR1B |= (1<<CS10);
- OCR1AH = (SOFTPWM_TIMER_TOP>>8)&0xff;
- OCR1AL = SOFTPWM_TIMER_TOP&0xff;
- TIMSK1 |= (1<<OCIE1A);
- sei();
- #endif
- #endif
- }
-
- void backlight_disable(void)
- {
- #ifdef SOFTPWM_LED_ENABLE
- softpwm_led_disable();
- #else
- #if defined(GH60_REV_CHN)
- // Turn off PWM
- cli();
- DDRB &= ~(1<<PB6);
- TCCR1A &= ~( (1<<WGM10) | (1<<COM1B1) );
- TCCR1B &= ~( (1<<CS11) | (1<<CS10) );
- sei();
- OCR1B = 0;
- #else
- DDRF &= ~(1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
- cli();
- TCCR1B &= ~(1<<WGM12);
- TCCR1B &= ~(1<<CS10);
- TIMSK1 &= ~(1<<OCIE1A);
- sei();
- OCR1A = 0;
- #endif
- #endif
- }
-
- void backlight_set(uint8_t level)
- {
- backlight_mode = level;
- #ifdef BREATHING_LED_ENABLE
- switch (level) {
- case 1:
- case 2:
- case 3:
- backlight_enable();
- #ifdef SOFTPWM_LED_ENABLE
- fading_led_disable_all();
- breathing_led_disable_all();
- #else
- breathing_led_disable();
- #endif
- backlight_set_raw(pgm_read_byte(&backlight_table[level]));
- break;
- case 4:
- case 5:
- case 6:
- backlight_enable();
- #ifdef SOFTPWM_LED_ENABLE
- breathing_led_enable_all();
- fading_led_disable_all();
- breathing_led_set_duration(6 - level);
- #else
- breathing_led_enable();
- breathing_led_set_duration(6 - level);
- #endif
- break;
- case 7:
- backlight_enable();
- 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:
- backlight_enable();
- fading_led_enable_all();
- breathing_led_disable_all();
- fading_led_set_direction_all(FADING_LED_FADE_OUT);
- fading_led_set_duration(3);
- break;
- case 0:
- default:
- #ifdef SOFTPWM_LED_ENABLE
- fading_led_disable_all();
- breathing_led_disable_all();
- #else
- breathing_led_disable();
- #endif
- backlight_disable();
- 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
- for (uint8_t i = 0; i < LED_COUNT; i++) {
- softpwm_led_set(i, raw);
- }
- #else
- #if defined(GH60_REV_CHN)
- OCR1B = raw;
- #else
- softpwm_ocr_buff = raw;
- #endif
- #endif
- }
-
- #ifdef SOFTPWM_LED_ENABLE
- #ifndef LEDMAP_ENABLE
-
- void softpwm_led_init(void)
- {
- #if defined(GH60_REV_CHN)
- DDRB |= (1<<PB6);
- #else
- DDRF |= (1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
- #endif
- }
-
- void softpwm_led_on(uint8_t index)
- {
- #if defined(GH60_REV_CHN)
- PORTB |= (1<<PB6);
- #else
- PORTF &= ~(1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
- #endif
- }
-
- void softpwm_led_off(uint8_t index)
- {
- #if defined(GH60_REV_CHN)
- PORTB &= ~(1<<PB6);
- #else
- PORTF |= (1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
- #endif
- }
-
- #endif
- #endif
-
- 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);
- }
- }
- }
-
-
- #ifndef SOFTPWM_LED_ENABLE
- #if defined(GH60_REV_CHN)
- #else
- ISR(TIMER1_COMPA_vect)
- {
- static uint8_t pwm = 0;
- pwm++;
- // LED on
- if (pwm == 0) {
- //PORTB |= (1<<PB6);
- PORTF &= ~(1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
- softpwm_ocr = softpwm_ocr_buff;
- }
- // LED off
- if (pwm == softpwm_ocr) {
- //PORTB &= ~(1<<PB6);
- PORTF |= (1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
- }
- }
- #endif
- #endif
-
- #endif
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