/* Copyright 2013 Timo Kasper, Simon Küppers, David Oswald ("ORIGINAL
 * AUTHORS"). All rights reserved.
 *
 * DEFINITIONS:
 *
 * "WORK": The material covered by this license includes the schematic
 * diagrams, designs, circuit or circuit board layouts, mechanical
 * drawings, documentation (in electronic or printed form), source code,
 * binary software, data files, assembled devices, and any additional
 * material provided by the ORIGINAL AUTHORS in the ChameleonMini project
 * (https://github.com/skuep/ChameleonMini).
 *
 * LICENSE TERMS:
 *
 * Redistributions and use of this WORK, with or without modification, or
 * of substantial portions of this WORK are permitted provided that the
 * following conditions are met:
 *
 * Redistributions and use of this WORK, with or without modification, or
 * of substantial portions of this WORK must include the above copyright
 * notice, this list of conditions, the below disclaimer, and the following
 * attribution:
 *
 * "Based on ChameleonMini an open-source RFID emulator:
 * https://github.com/skuep/ChameleonMini"
 *
 * The attribution must be clearly visible to a user, for example, by being
 * printed on the circuit board and an enclosure, and by being displayed by
 * software (both in binary and source code form).
 *
 * At any time, the majority of the ORIGINAL AUTHORS may decide to give
 * written permission to an entity to use or redistribute the WORK (with or
 * without modification) WITHOUT having to include the above copyright
 * notice, this list of conditions, the below disclaimer, and the above
 * attribution.
 *
 * DISCLAIMER:
 *
 * THIS PRODUCT IS PROVIDED BY THE ORIGINAL AUTHORS "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE ORIGINAL AUTHORS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS PRODUCT, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 *
 * The views and conclusions contained in the hardware, software, and
 * documentation should not be interpreted as representing official
 * policies, either expressed or implied, of the ORIGINAL AUTHORS.
 */

#ifndef SYSTEM_H
#define SYSTEM_H

#include <avr/io.h>
#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#include <stddef.h>
#include <stdbool.h>
#include "Common.h"

typedef uint16_t SystemRTCType;

#define F_RTC   1000
#define SYSTEM_MILLISECONDS_TO_RTC_CYCLES(x) \
    ( (uint16_t) ( (double) F_RTC * x / 1E3 + 0.5) )

#define SYSTEM_TICK_FREQ    10
#define SYSTEM_TICK_MS		(1000/SYSTEM_TICK_FREQ)

void SystemInit(void);
void SystemReset(void);
void SystemEnterBootloader(void);
void SystemStartUSBClock(void);
void SystemStopUSBClock(void);
void SystemInterruptInit(void);
INLINE bool SystemTick100ms(void);
INLINE SystemRTCType SystemGetRTC(void);


INLINE SystemRTCType SystemGetRTC(void)
{
    return RTC.CNT;
}

INLINE bool SystemTick100ms(void)
{
    if (TCE0.INTFLAGS & TC0_OVFIF_bm) {
        TCE0.INTFLAGS = TC0_OVFIF_bm;

        return true;
    }

    return false;
}

#endif /* SYSTEM_H */