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arduino-cli/libraries/RF24/utility/MRAA/spi.cpp

@@ -0,0 +1,59 @@
+
+#include "spi.h"
+#include "mraa.h"
+
+SPI::SPI()
+{
+    mspi = NULL;
+}
+
+void SPI::begin(int busNo, uint32_t spi_speed)
+{
+    mspi = new mraa::Spi(
+            busNo); // init mraa spi bus, it will handle chip select internally. For CS pin wiring user must check SPI details in hardware manual
+
+    mspi->mode(mraa::SPI_MODE0);
+    mspi->bitPerWord(8);
+    mspi->frequency(
+            spi_speed); // Prophet: this will try to set 8MHz, however MRAA will reset to max platform speed and syslog a message of it
+}
+
+void SPI::end()
+{
+    // Prophet: we should check for existence of mspi before deleting it
+    if (mspi != NULL) {
+        delete mspi;
+    }
+}
+
+void SPI::setBitOrder(uint8_t bit_order)
+{
+    if (mspi != NULL) {
+        mspi->lsbmode((mraa_boolean_t) bit_order);
+    } // Prophet: bit_order
+}
+
+void SPI::setDataMode(uint8_t data_mode)
+{
+    if (mspi != NULL) {
+        mspi->mode((mraa::Spi_Mode) data_mode);
+    }
+}
+
+void SPI::setClockDivider(uint32_t spi_speed)
+{
+    if (mspi != NULL) {
+        mspi->frequency(spi_speed);
+    }
+}
+
+void SPI::chipSelect(int csn_pin)
+{
+
+}
+
+SPI::~SPI()
+{
+    // Prophet: we should call end here to free used memory and unexport SPI interface
+    this->end();
+}