/*
 * hardware.h
 *
 *  Created on: Dec 4, 2011
 *      Author: Doug
 *
 * Copyright (C) 2011-2023 Doug Brown
 *
 * 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 3 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 <https://www.gnu.org/licenses/>.
 *
 */

#ifndef HAL_AT90USB646_HARDWARE_H_
#define HAL_AT90USB646_HARDWARE_H_

#include <avr/boot.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>

/** Disables interrupts
 *
 */
static inline void DisableInterrupts(void)
{
	cli();
}

/** Enables interrupts
 *
 */
static inline void EnableInterrupts(void)
{
	sei();
}

/** Blocks for the specified number of milliseconds
 *
 * @param ms The number of milliseconds to wait
 */
static inline void DelayMS(uint16_t ms)
{
	_delay_ms(ms);
}

/** Blocks for the specified number of microseconds
 *
 * @param us The number of microseconds to wait
 */
static inline void DelayUS(uint16_t us)
{
	_delay_us(us);
}

/** Determines if this code is running on an AT90USB128x or AT90USB64x
 *
 * @return True if it's an AT90USB128x, false if AT90USB64x
 */
static inline bool IsAT90USB128x(void)
{
	// Read the device signature byte 2 to determine whether this is an
	// AT90USB128x or AT90USB64x.
	return boot_signature_byte_get(0x0002) == 0x97;
}

#endif /* HAL_AT90USB646_HARDWARE_H_ */