Tasmota/lib/lib_rf/RF24/utility/ATXMegaD3/spi.h

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1.6 KiB
C++

/**
* @file spi.h
* Class declaration for SPI helper files
*/
/**
* Example of spi.h class declaration for SPI portability
*
* @defgroup Porting_SPI Porting: SPI
*
*
* @{
*/
#ifndef __XMEGASPI_H__
#define __XMEGASPI_H__
#include <avr/io.h>
#include <stdint.h>
//#include <string.h>
//#include <unistd.h>
//#include <stdio.h>
//#include <stdlib.h>
//#include <getopt.h>
//#include <fcntl.h>
//#include <sys/ioctl.h>
//#include <inttypes.h>
//#include <linux/types.h>
//#include <linux/spi/spidev.h>
#define SPI_SS_bm (1<<4) /* SPI SS pin mask 4 */
#define SPI_MOSI_bm (1<<5) /* SPI MOSI pin mask 5 */
#define SPI_MISO_bm (1<<6) /* SPI MISO pin mask 6 */
#define SPI_SCK_bm (1<<7) /* SPI SCK pin mask 7 */
using namespace std;
class SPI {
public:
/**
* SPI constructor
*/
SPI();
/**
* Start SPI
* @param port is the SPI port (XMEGA_SPI_PORT_C for SPI on PORTC, XMEGA_SPI_PORT_D on PORTD etc).
*/
void begin(uint8_t port);
/**
* Transfer a single byte
* @param tx_ Byte to send
* @return Data returned via spi
*/
uint8_t transfer(uint8_t tx_);
/**
* Transfer a buffer of data
* @param tbuf Transmit buffer
* @param rbuf Receive buffer
* @param len Length of the data
*/
void transfernb(char* tbuf, char* rbuf, uint32_t len);
/**
* Transfer a buffer of data without an rx buffer
* @param buf Pointer to a buffer of data
* @param len Length of the data
*/
void transfern(char* buf, uint32_t len);
virtual ~SPI();
private:
/** Default SPI device */
SPI_t * device;
/* Port of the SPI */
PORT_t * port;
void init();
};
#endif /*__XMEGASPI_H__*/
/*@}*/