Colony

/**

 * @file spi.h

 * @brief Definitions for SPI

 * @author Colony Project, CMU Robotics Club

 **/

/**

 * @addtogroup spi

 * @{

 **/

#ifndef __SPI_H__

#define __SPI_H__

#include<dragonfly_lib.h>

#define DOUBLE_SCK 1

#define SPR0_BIT 1

#define MASTER 1

#define SLAVE 0

#define MOSI _BV(PB2)

#define MISO _BV(PB3)

#define SS   _BV(PB0)

#define SCLK _BV(PB1)

typedef void (*spi_fun_recv_t)(char);

typedef void (*spi_fun_recv_complete_t)(void);

/** 

* @brief Initialize SPI

* 

* @param spi_fun_recv_t The function that handles SPI data, byte for byte.

* @param spi_fun_recv_complete_t  Called on a completed transmission - typically for cleaning up.

*/

int spi_init (spi_fun_recv_t, spi_fun_recv_complete_t);

/** 

* @brief Initialize SPI transfer.

* 

* @param char The number of bytes to transfer.

*/

int spi_transfer (char);

/**@}**/ //end group

#endif