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

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+/**
+ * @file spi.h
+ * Class declaration for SPI helper files
+ */
+
+#ifndef SPI_H
+#define    SPI_H
+
+/**
+* Example of spi.h class declaration for SPI portability
+*
+* @defgroup Porting_SPI Porting: SPI
+*
+* @{
+*/
+
+#include <stdio.h>
+#include <inttypes.h>
+
+#include "../../RF24_config.h"
+
+using namespace std;
+
+class SPI {
+public:
+    /**
+    * SPI default constructor
+    */
+    SPI();
+
+    /**
+    * Start SPI communication
+    * @param pin used for SPI
+    */
+    void begin(int csn_pin, uint32_t spi_speed = RF24_SPI_SPEED);
+
+    /**
+    * Transfer a single byte of data
+    * @param tx Byte to send
+    * @return Data returned via spi
+    */
+    uint8_t transfer(uint8_t);
+
+    /**
+    * Transfer a buffer of data using rx and tx buffer
+    * @param tbuf Transmit buffer
+    * @param rbuf Receive buffer
+    * @param len Length of the data
+    */
+    void transfernb(char*, char*, uint32_t);
+
+    /**
+    * Transfer a buffer of data without using an rx buffer
+    * @param buf Pointer to a buffer of data
+    * @param len Length of the data
+    */
+    void transfern(char*, const uint32_t);
+
+    /**
+    * SPI destructor
+    */
+    virtual ~SPI();
+
+private:
+    int fd;
+    uint8_t msg[32 + 1];
+    uint8_t msgByte;
+};
+
+/*@}*/
+#endif    /* SPI_H */
+