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MGOSCompat/HardwareSPI.h

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+// ArduinoCompat/HardwareSPI.h
+// STM32 implementattion of Arduino compatible SPI class
+
+#ifndef _HardwareSPI_h
+#define _HardwareSPI_h
+#include <mgos.h>
+#include <mgos_spi.h>
+#include <stdint.h>
+
+extern "C"
+{
+    struct mgos_spi *mgos_spi_get_global(void);
+    bool mgos_spi_run_txn(struct mgos_spi *spi, bool full_duplex, const struct mgos_spi_txn *txn);
+}
+
+//Not used on MGOS as SPI config is set in mos.yml
+#define SPI_MODE0 0x00
+#define SPI_MODE1 0x01
+#define SPI_MODE2 0x03
+#define SPI_MODE3 0x02
+
+#define  SPI_TX_BUFFER_SIZE 64
+#define  SPI_RX_BUFFER_SIZE 64
+
+class HardwareSPI
+{
+public:
+    HardwareSPI(uint32_t spiPortNumber); // Only port SPI1 is currently supported
+    void begin(int frequency, uint32_t bitOrder, uint32_t mode);
+    void end(void);
+    uint8_t reverseBits(uint8_t value);
+    int8_t getCSGpio();
+    uint8_t transfer(uint8_t data);
+    uint8_t transfer2B(uint8_t byte0, uint8_t byte1);
+    uint8_t spiBurstRead(uint8_t reg, uint8_t* dest, uint8_t len);
+    uint8_t spiBurstWrite(uint8_t reg, const uint8_t* src, uint8_t len);
+private:
+    uint32_t spiPortNumber; // Not used
+    struct   mgos_spi_txn txn;
+    uint32_t bitOrder;
+    //Define spi TX and RX buffers.This is a little wasteful of memory
+    //but no dynamic memory allocation fits with the RadioHead library.
+    uint8_t spiTXBuf[SPI_TX_BUFFER_SIZE];
+    uint8_t spiRXBuf[SPI_RX_BUFFER_SIZE];
+};
+extern HardwareSPI SPI;
+
+
+#endif