/* Copyright (c) 2013-2016 Jeffrey Pfau
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GB_SIO_H
#define GB_SIO_H

#include "util/common.h"

#include "core/timing.h"

struct GB;
struct GBSIO {
	struct GB* p;

	struct mTimingEvent event;

	int32_t nextEvent;
	int32_t period;
	int remainingBits;

	uint8_t pendingSB;
};

DECL_BITFIELD(GBRegisterSC, uint8_t);
DECL_BIT(GBRegisterSC, ShiftClock, 0);
DECL_BIT(GBRegisterSC, ClockSpeed, 1);
DECL_BIT(GBRegisterSC, Enable, 7);

void GBSIOInit(struct GBSIO* sio);
void GBSIOReset(struct GBSIO* sio);
void GBSIODeinit(struct GBSIO* sio);
void GBSIOWriteSC(struct GBSIO* sio, uint8_t sc);

#endif