Fixup

examples/nucleo_g070rb/adc_dma/adc_dma.hpp

@@ -55,14 +55,13 @@ class AdcDma
 		setCompletedConversionCallback(completedCallback);
 
 		Dma::AdcChannel::template setPeripheralRequest<Dma::AdcRequest>();
-		Adc::disableDmaMode();
+		Adc::setDmaMode(Adc::DmaMode::Disabled);
 	}
 
 	static void
 	startDma()
 	{
-		Adc::enableDmaRequests();
-		Adc::enableDmaMode();
+		Adc::setDmaMode(Adc::DmaMode::Circular);
 		DmaChannel::start();
 	}
 

src/modm/platform/adc/stm32f0/adc.hpp.in

@@ -153,6 +153,14 @@ public:
 	};
 	MODM_FLAGS32(InterruptFlag);
 
+	enum class DmaMode : uint32_t
+	{
+		Disabled = 0,
+		OneShot = ADC_CFGR1_DMAEN,
+		Circular = ADC_CFGR1_DMACFG | ADC_CFGR1_DMAEN,
+		Mask = Circular
+	};
+
 	enum class ExternalTriggerPolarity
 	{
 		NoTriggerDetection = 0x0u,
@@ -402,33 +410,20 @@ public:
 		ExternalTriggerPolarity externalTriggerPolarity,
 		RegularConversionExternalTrigger regularConversionExternalTrigger);
 
-	/// Enable DMA mode
-	/// @warning May only be called while no conversion is ongoing
-	static inline void
-	enableDmaMode();
-
-	/// Disable DMA mode
-	/// @warning May only be called while no conversion is ongoing
-	static inline void
-	disableDmaMode();
-
-	static inline bool
-	getAdcEnabled();
-
 	/**
-	* enable DMA selection for the ADC. If this is enabled DMA
-	* requests are issued as long as data are converted and
-	* the adc has dma enabled
+	 * Configure DMA mode (disabled, one-shot or circular)
+	 *
+	 * In one-shot mode DMA requests are disabled at the end of the DMA transfer.
+	 * If circular mode is selected request are being generated as long as
+	 * conversions are performed.
+	 *
+	 * @warning May only be called while no conversion is ongoing
 	 */
 	static inline void
-	enableDmaRequests();
+	setDmaMode(DmaMode mode);
 
-	/**
-	* disable dma selection for the ADC. If this is disabled
-	* no new DMA requests are issued after last transfer
-	 */
-	static inline void
-	disableDmaRequests();
+	static inline bool
+	getAdcEnabled();
 
 	static inline void
 	enableInternalChannel(Channel channel);

src/modm/platform/adc/stm32f0/adc_impl.hpp.in

@@ -471,15 +471,10 @@ modm::platform::Adc{{ id }}::enableRegularConversionExternalTrigger(
 }
 
 void
-modm::platform::Adc{{ id }}::enableDmaMode()
+modm::platform::Adc{{ id }}::setDmaMode(DmaMode mode)
 {
-	ADC1->CFGR1 |= ADC_CFGR1_DMAEN;
-}
-
-void
-modm::platform::Adc{{ id }}::disableDmaMode()
-{
-	ADC1->CFGR1 &= ~ADC_CFGR1_DMAEN;
+	ADC1->CFGR1 = (ADC1->CFGR1 & ~static_cast<uint32_t>(DmaMode::Mask))
+		| static_cast<uint32_t>(mode);
 }
 
 bool
@@ -488,18 +483,6 @@ modm::platform::Adc{{ id }}::getAdcEnabled()
 	return (ADC1->CR & ADC_CR_ADEN);
 }
 
-void
-modm::platform::Adc{{ id }}::enableDmaRequests()
-{
-	ADC1->CFGR1 |= ADC_CFGR1_DMACFG;
-}
-
-void
-modm::platform::Adc{{ id }}::disableDmaRequests()
-{
-	ADC1->CFGR1 &= ~ADC_CFGR1_DMACFG;
-}
-
 %% if target.family in ["g0"]
 void
 modm::platform::Adc{{ id }}::waitChannelConfigReady()