140 lines
4.2 KiB
C++
140 lines
4.2 KiB
C++
/**
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******************************************************************************
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* File Name : TouchGFXGeneratedHAL.cpp
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2021 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under Ultimate Liberty license
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* SLA0044, the "License"; You may not use this file except in compliance with
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* the License. You may obtain a copy of the License at:
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* www.st.com/SLA0044
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*
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******************************************************************************
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*/
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#include <TouchGFXGeneratedHAL.hpp>
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#include <touchgfx/hal/OSWrappers.hpp>
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#include <gui/common/FrontendHeap.hpp>
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#include <touchgfx/hal/GPIO.hpp>
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#include "stm32f7xx.h"
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#include "stm32f7xx_hal_ltdc.h"
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using namespace touchgfx;
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namespace
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{
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static uint16_t lcd_int_active_line;
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static uint16_t lcd_int_porch_line;
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}
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void TouchGFXGeneratedHAL::initialize()
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{
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HAL::initialize();
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registerEventListener(*(Application::getInstance()));
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setFrameBufferStartAddresses((void*)0xC0000000, (void*)0xC003FC00, (void*)0);
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}
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void TouchGFXGeneratedHAL::configureInterrupts()
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{
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NVIC_SetPriority(DMA2D_IRQn, 9);
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NVIC_SetPriority(LTDC_IRQn, 9);
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}
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void TouchGFXGeneratedHAL::enableInterrupts()
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{
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NVIC_EnableIRQ(DMA2D_IRQn);
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NVIC_EnableIRQ(LTDC_IRQn);
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}
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void TouchGFXGeneratedHAL::disableInterrupts()
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{
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NVIC_DisableIRQ(DMA2D_IRQn);
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NVIC_DisableIRQ(LTDC_IRQn);
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}
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void TouchGFXGeneratedHAL::enableLCDControllerInterrupt()
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{
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lcd_int_active_line = (LTDC->BPCR & 0x7FF) - 1;
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lcd_int_porch_line = (LTDC->AWCR & 0x7FF) - 1;
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/* Sets the Line Interrupt position */
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LTDC->LIPCR = lcd_int_active_line;
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/* Line Interrupt Enable */
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LTDC->IER |= LTDC_IER_LIE;
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}
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uint16_t* TouchGFXGeneratedHAL::getTFTFrameBuffer() const
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{
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return (uint16_t*)LTDC_Layer1->CFBAR;
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}
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void TouchGFXGeneratedHAL::setTFTFrameBuffer(uint16_t* adr)
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{
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LTDC_Layer1->CFBAR = (uint32_t)adr;
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/* Reload immediate */
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LTDC->SRCR = (uint32_t)LTDC_SRCR_IMR;
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}
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void TouchGFXGeneratedHAL::flushFrameBuffer(const touchgfx::Rect& rect)
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{
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HAL::flushFrameBuffer(rect);
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// If the framebuffer is placed in Write Through cached memory (e.g. SRAM) then we need
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// to flush the Dcache prior to letting DMA2D accessing it. That's done
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// using SCB_CleanInvalidateDCache().
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SCB_CleanInvalidateDCache();
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}
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bool TouchGFXGeneratedHAL::blockCopy(void* RESTRICT dest, const void* RESTRICT src, uint32_t numBytes)
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{
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return HAL::blockCopy(dest, src, numBytes);
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}
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void TouchGFXGeneratedHAL::InvalidateCache()
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{
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// If the framebuffer is placed in Write Through cached memory (e.g. SRAM) then we need
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// to flush the Dcache prior to letting DMA2D accessing it. That's done
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// using SCB_CleanInvalidateDCache().
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SCB_CleanInvalidateDCache();
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}
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void TouchGFXGeneratedHAL::FlushCache()
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{
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// If the framebuffer is placed in Write Through cached memory (e.g. SRAM) then we need
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// to flush the Dcache prior to letting DMA2D accessing it. That's done
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// using SCB_CleanInvalidateDCache().
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SCB_CleanInvalidateDCache();
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}
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extern "C"
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{
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void HAL_LTDC_LineEventCallback(LTDC_HandleTypeDef* hltdc)
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{
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if (LTDC->LIPCR == lcd_int_active_line)
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{
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//entering active area
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HAL_LTDC_ProgramLineEvent(hltdc, lcd_int_porch_line);
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HAL::getInstance()->vSync();
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OSWrappers::signalVSync();
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// Swap frame buffers immediately instead of waiting for the task to be scheduled in.
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// Note: task will also swap when it wakes up, but that operation is guarded and will not have
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// any effect if already swapped.
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HAL::getInstance()->swapFrameBuffers();
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GPIO::set(GPIO::VSYNC_FREQ);
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}
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else
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{
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//exiting active area
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HAL_LTDC_ProgramLineEvent(hltdc, lcd_int_active_line);
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GPIO::clear(GPIO::VSYNC_FREQ);
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HAL::getInstance()->frontPorchEntered();
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}
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}
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}
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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