#ifndef TIMER0_H
#	define TIMER0_H

#	include <avr/io.h>
#	include "mystd.h"

#	include "timer_global.h"

static inline void t0_init_fpwm_3(e_timer_prescaler prescaler) {
	// Fast PWM (8-bit): WGM22:0 = 0b011
	TCCR0A	= _BV(WGM00) | _BV(WGM01);

	// reset to zero -> timer off
	TCCR0B &= ~(_BV(CS02) | _BV(CS01) | _BV(CS00));
	// set the correct prescaler
	switch (prescaler) {
		case (PRESCALER_1): {
			TCCR0B |= (_BV(CS00));
			break;
		}
		case (PRESCALER_8): {
			TCCR0B |= (_BV(CS01));
			break;
		}
		case (PRESCALER_64): {
			TCCR0B |= (_BV(CS01) | _BV(CS00));
			break;
		}
		case (PRESCALER_256): {
			TCCR0B |= (_BV(CS02));
			break;
		}
		case (PRESCALER_1024): {
			TCCR0B |= (_BV(CS02) | _BV(CS00));
			break;
		}
		case (PRESCALER_OFF): {
			break;
		}
	}
}

static inline void t0_set_ocr(enum e_timer_output output, uint8_t value) {
	if (output & TO_A)
		OCR0A = value;
	if (output & TO_B)
		OCR0B = value;
}

static inline void t0_set_out_mode(enum e_timer_output output, enum e_timer_output_mode mode) {
	if (output & TO_A) {
		TCCR0A &= ~(_BV(COM0A1) | _BV(COM0A0));
		switch (mode) {
			case (TOM_00): {
				break;
			}
			case (TOM_10): {
				TCCR0A |= (_BV(COM0A1));
				break;
			}
			case (TOM_01): {
				TCCR0A |= (_BV(COM0A0));
				break;
			}
			case (TOM_11): {
				TCCR0A |= (_BV(COM0A1) | _BV(COM0A0));
				break;
			}
		}
	}
	if (output & TO_B) {
		TCCR0A &= ~(_BV(COM0B1) | _BV(COM0B0));
		switch (mode) {
			case (TOM_00): {
				break;
			}
			case (TOM_10): {
				TCCR0A |= (_BV(COM0B1));
				break;
			}
			case (TOM_01): {
				TCCR0A |= (_BV(COM0B0));
				break;
			}
			case (TOM_11): {
				TCCR0A |= (_BV(COM0B1) | _BV(COM0B0));
				break;
			}
		}
	}
}

// OC2B => RED   => PD3
// OC0B => GREEN => PD5
// OC0A => BLUE  => PD6

#endif /* TIMER0_H */

	/*
		// OC2B = PD3 → output
		DDRD   |= _BV(DDD3) | _BV(DDD5) | _BV(DDD6);

		// Fast PWM (8-bit): WGM22:0 = 0b011
		TCCR0A	= _BV(WGM00) | _BV(WGM01);
		TCCR0A |= _BV(COM0B1);

		// 50% duty cycle
		OCR0B	= 128;

		// Start timer, prescaler = 64
		TCCR0B	= _BV(CS02);
	*/