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arduino-cli/libraries/RF24/utility/ATXMegaD3/spi.h

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+/**
+ * @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__*/
+
+/*@}*/