ESP32 support and changes to SPI to support ESP32

src/devices/arduino/bus/spi.cpp

@@ -2,24 +2,32 @@
 
 #include <sta/lang.hpp>
 
-#include <sta/devices/arduino/hal.hpp>
-
 namespace sta
 {
-    ArduinoSPI::ArduinoSPI(const SPISettings & settings, Mutex * mutex /* = nullptr */)
-        : SPI{ settings, mutex }
+#ifndef STA_PLATFORM_ARDUINO_DEVICE_ESP32
+    ArduinoSPI::ArduinoSPI(const SPISettings & settings, Mutex * mutex /* = sta::Mutex::ALWAYS_FREE */)
+        : SPI{ settings, mutex },
+          spi_{}
     {
-        SPIClass::begin();
+        spi_.begin();
     }
+#else
+    ArduinoSPI::ArduinoSPI(SPIBus bus, const SPISettings & settings, Mutex * mutex /* = sta::Mutex::ALWAYS_FREE */)
+        : SPI{ settings, mutex },
+          spi_{ bus }
+    {
+        spi_.begin();
+    }
+#endif // !STA_PLATFORM_ARDUINO_DEVICE_ESP32
 
     void ArduinoSPI::transfer(uint8_t value)
     {
-        SPIClass::transfer(value);
+        spi_.transfer(value);
     }
 
     void ArduinoSPI::transfer16(uint16_t value)
     {
-        SPIClass::transfer16(value);
+        spi_.transfer16(value);
     }
 
     void ArduinoSPI::transfer(const uint8_t * buffer, size_t size)
@@ -28,7 +36,7 @@ namespace sta
         uint8_t temp_buffer[size];
         memcpy(temp_buffer, buffer, size);
 
-        SPIClass::transfer(temp_buffer, size);
+        spi_.transfer(temp_buffer, size);
     }
 
     void ArduinoSPI::transfer(const uint8_t * txBuffer, uint8_t * rxBuffer, size_t size)
@@ -36,12 +44,12 @@ namespace sta
         // Copy txBuffer content into rxBuffer, SPIClass::transfer will store received values in rxBuffer.
         memcpy(rxBuffer, txBuffer, size);
 
-        SPIClass::transfer(rxBuffer, size);
+        spi_.transfer(rxBuffer, size);
     }
 
     void ArduinoSPI::receive(uint8_t * buffer, size_t size)
     {
-        SPIClass::transfer(buffer, size);
+        spi_.transfer(buffer, size);
     }
 
     void ArduinoSPI::fill(uint8_t value, size_t count) 
@@ -49,7 +57,7 @@ namespace sta
         uint8_t temp_buffer[count];
         memset(temp_buffer, value, count);
 
-        SPIClass::transfer(temp_buffer, count);
+        spi_.transfer(temp_buffer, count);
     }
 
     void ArduinoSPI::acquire()
@@ -94,12 +102,12 @@ namespace sta
 
         hal::SPISettings halSettings(set.clkSpeed, bitOrder, dataMode);
 
-        SPIClass::beginTransaction(halSettings);
+        spi_.beginTransaction(halSettings);
     }
 
     void ArduinoSPI::release()
     {
-        SPIClass::endTransaction();
+        spi_.endTransaction();
 
         SPI::release();
     }