/**
 * Copyright (c) 2013-2014, TU Braunschweig
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * Neither the name of the University of California, Los Angeles nor the
 * names of its contributors may be used to endorse or promote products
 * derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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 COPYRIGHT
 * OWNER 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 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package avrora.sim.platform.sensors;

import avrora.sim.mcu.Microcontroller;
import avrora.sim.mcu.SPI;
import avrora.sim.mcu.SPIDevice;

/**
 *
 * @author S. Willenborg
 */
public class AT45DB implements SPIDevice {

    Microcontroller.Pin.Input CS = null;

    public void connectCS(Microcontroller.Pin.Input cs) {
        CS = cs;
    }

    @Override
    public SPI.Frame exchange(SPI.Frame frame) {
        if (CS != null && CS.read()) {
            return SPI.newFrame((byte) 0x00);
        }
        System.out.printf("flash %02x\n", 0xff & frame.data);
        return SPI.newFrame((byte) 0x1f);
    }

    @Override
    public void connect(SPIDevice d) {
        throw new UnsupportedOperationException("Not supported.");
    }

}
