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/**
******************************************************************************
* This file is part of the TouchGFX 4.10.0 distribution.
*
* @attention
*
* Copyright (c) 2018 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
#ifndef STM32F4DMA_HPP
#define STM32F4DMA_HPP
#include <touchgfx/hal/DMA.hpp>
#ifndef NO_USING_NAMESPACE_TOUCHGFX
using namespace touchgfx;
#endif
/**
* @class STM32F4DMA STM32F4DMA.hpp
*
* @brief This class specializes DMA_Interface for the ST F4xx processors.
*
* @sa touchgfx::DMA_Interface
*/
class STM32F4DMA : public touchgfx::DMA_Interface
{
/**
* @typedef touchgfx::DMA_Interface Base
*
* @brief Defines an alias representing the base.
*
Defines an alias representing the base.
*/
typedef touchgfx::DMA_Interface Base;
public:
/**
* @fn STM32F4DMA::STM32F4DMA();
*
* @brief Default constructor.
*
* Default constructor.
*/
STM32F4DMA();
/**
* @fn STM32F4DMA::~STM32F4DMA();
*
* @brief Destructor.
*
* Destructor.
*/
virtual ~STM32F4DMA();
/**
* @fn touchgfx::BlitOperations STM32F4DMA::getBlitCaps();
*
* @brief Gets the blit capabilities.
*
* Gets the blit capabilities.
*
* This DMA supports a range of blit caps: BLIT_OP_COPY, BLIT_OP_COPY_ARGB8888,
* BLIT_OP_COPY_ARGB8888_WITH_ALPHA, BLIT_OP_COPY_A4, BLIT_OP_COPY_A8.
*
* @note For demonstration purposes, the blitcaps can be overridden at runtime to return zero
* by setting the overrideBlitCaps boolean to true.
*
* @return Currently supported blitcaps.
*/
virtual touchgfx::BlitOperations getBlitCaps();
/**
* @fn void STM32F4DMA::initialize();
*
* @brief Perform hardware specific initialization.
*
* Perform hardware specific initialization.
*/
virtual void initialize();
/**
* @fn void STM32F4DMA::signalDMAInterrupt()
*
* @brief Raises a DMA interrupt signal.
*
* Raises a DMA interrupt signal.
*/
virtual void signalDMAInterrupt()
{
executeCompleted();
}
protected:
/**
* @fn virtual void STM32F4DMA::setupDataCopy(const touchgfx::BlitOp& blitOp);
*
* @brief Configures the DMA for copying data to the frame buffer.
*
* Configures the DMA for copying data to the frame buffer.
*
* @param blitOp Details on the copy to perform.
*/
virtual void setupDataCopy(const touchgfx::BlitOp& blitOp);
/**
* @fn virtual void STM32F4DMA::setupDataFill(const touchgfx::BlitOp& blitOp);
*
* @brief Configures the DMA for "filling" the frame-buffer with a single color.
*
* Configures the DMA for "filling" the frame-buffer with a single color.
*
* @param blitOp Details on the "fill" to perform.
*/
virtual void setupDataFill(const touchgfx::BlitOp& blitOp);
private:
touchgfx::LockFreeDMA_Queue dma_queue;
touchgfx::BlitOp queue_storage[96];
};
#endif // STM32F4DMA_HPP