Add HAL SPI implementation

src/hal/spi.cpp

@@ -0,0 +1,70 @@
+#include <sta/hal/spi.hpp>
+
+#ifdef STA_HAL_SPI_ENABLE
+
+
+namespace sta
+{
+	HalSpiInterface::HalSpiInterface(SPI_HandleTypeDef * handle, Mutex * mutex /* = nullptr */)
+		: SpiInterface(mutex), handle_{handle}
+	{}
+
+
+	void HalSpiInterface::transfer(uint8_t data)
+	{
+		HAL_SPI_Transmit(handle_, &data, 1, HAL_MAX_DELAY);
+	}
+
+	void HalSpiInterface::transfer(const uint8_t * data, size_t size)
+	{
+		HAL_SPI_Transmit(handle_, const_cast<uint8_t *>(data), size, HAL_MAX_DELAY);
+	}
+
+
+	void HalSpiInterface::transfer16(uint16_t value)
+	{
+		HAL_SPI_Transmit(handle_, reinterpret_cast<uint8_t *>(&value), 2, HAL_MAX_DELAY);
+	}
+
+
+	void HalSpiInterface::fill(uint8_t value, size_t count)
+	{
+		for (size_t i = 0; i < count; ++i)
+		{
+			transfer(value);
+		}
+	}
+
+	void HalSpiInterface::fill32(uint32_t value, size_t count)
+	{
+		for (size_t i = 0; i < count; ++i)
+		{
+			HAL_SPI_Transmit(handle_, reinterpret_cast<uint8_t *>(&value), 4, HAL_MAX_DELAY);
+		}
+	}
+
+
+	void HalSpiInterface::receive(uint8_t * data, size_t size)
+	{
+		HAL_SPI_Receive(handle_, data, size, HAL_MAX_DELAY);
+	}
+
+
+
+	HalSpiDevice::HalSpiDevice(SpiInterface * intf, HalGpioPin csPin)
+		: SpiDevice(intf), csPin_{csPin}
+	{}
+
+	void HalSpiDevice::select()
+	{
+		STA_HAL_GPIO_PIN_WRITE(csPin_, GPIO_PIN_RESET);
+	}
+
+	void HalSpiDevice::deselect()
+	{
+		STA_HAL_GPIO_PIN_WRITE(csPin_, GPIO_PIN_SET);
+	}
+} // namespace sta
+
+
+#endif // STA_HAL_SPI_ENABLE