Added ADC implementation for STM32

include/sta/devices/stm32/adc.hpp

@@ -11,10 +11,26 @@ namespace sta
     class STM32ADC
     {
     public:
-        STM32ADC();
+        /** 
+         * @param handle A handle to a STM32 ADC.
+         */
+        STM32ADC(ADC_HandleTypeDef * handle);
 
+        /**
+         * @brief Starts conversion of the incoming analog signal.
+         */
+        void start();
+
+        /**
+         * @brief 
+         * 
+         * @param timeout 
+         */
+        void poll(uint32_t timeout);
+
+        uint32_t getValue();
     private:
-    	
+    	ADC_HandleTypeDef * handle_;
     };    
 } // namespace sta
 

src/devices/stm32/adc.cpp

@@ -0,0 +1,33 @@
+#include <sta/devices/stm32/adc.hpp>
+
+#ifdef STA_PLATFORM_STM32
+
+#include <sta/debug/assert.hpp>
+
+namespace sta
+{
+    STM32ADC::STM32ADC(ADC_HandleTypeDef * handle)
+        : handle_{handle}
+    {
+        STA_ASSERT(handle != nullptr);
+    }
+
+    void STM32ADC::start()
+    {
+        HAL_ADC_Start(handle_);
+    }
+
+    void STM32ADC::poll(uint32_t timeout)
+    {
+        HAL_StatusTypeDef res = HAL_ADC_PollForConversion(handle_, timeout);
+
+        STA_ASSERT(res == HAL_OK);
+    }
+
+    uint32_t STM32ADC::getValue()
+    {
+        return HAL_ADC_GetValue(handle_);
+    }
+} // namespace sta
+
+#endif // STA_PLATFORM_STM32