source: rtos_arduino/trunk/arduino_lib/hardware/arduino/samd/libraries/SPI/SPI.h@ 136

/*
 * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>
 * SPI Master library for arduino.
 *
 * This file is free software; you can redistribute it and/or modify
 * it under the terms of either the GNU General Public License version 2
 * or the GNU Lesser General Public License version 2.1, both as
 * published by the Free Software Foundation.
 */

#ifndef _SPI_H_INCLUDED
#define _SPI_H_INCLUDED

#include "variant.h"
#include "wiring_constants.h"

#define SPI_MODE0 0x02
#define SPI_MODE1 0x00
#define SPI_MODE2 0x03
#define SPI_MODE3 0x01

class SPIClass {
  public:
        SPIClass(SERCOM *p_sercom, uint8_t uc_pinMISO, uint8_t uc_pinSCK, uint8_t uc_pinMOSI);

        byte transfer(uint8_t data);

        // SPI Configuration methods
        void attachInterrupt();
        void detachInterrupt();

        void begin();
        void end();
        
        void setBitOrder(BitOrder order);
        void setDataMode(uint8_t uc_mode);
        void setClockDivider(uint8_t uc_div);

  private:
        SERCOM *_p_sercom;
        uint8_t _uc_pinMiso;
        uint8_t _uc_pinMosi;
        uint8_t _uc_pinSCK;
};

#if SPI_INTERFACES_COUNT > 0
  extern SPIClass SPI;
#endif

#endif