/* * Copyright (c) 2006-2018, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2009-01-05 Bernard first implementation */ #include #include #include "board.h" /** * @addtogroup STM32 */ /*@{*/ #if STM32_USE_SDIO /** * @brief DeInitializes the SDIO interface. * @param None * @retval None */ void SD_LowLevel_DeInit(void) { GPIO_InitTypeDef GPIO_InitStructure; /*!< Disable SDIO Clock */ SDIO_ClockCmd(DISABLE); /*!< Set Power State to OFF */ SDIO_SetPowerState(SDIO_PowerState_OFF); /*!< DeInitializes the SDIO peripheral */ SDIO_DeInit(); /* Disable the SDIO APB2 Clock */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_SDIO, DISABLE); GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_MCO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_MCO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_MCO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_MCO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_MCO); GPIO_PinAFConfig(GPIOD, GPIO_PinSource2, GPIO_AF_MCO); /* Configure PC.08, PC.09, PC.10, PC.11 pins: D0, D1, D2, D3 pins */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; GPIO_Init(GPIOC, &GPIO_InitStructure); /* Configure PD.02 CMD line */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; GPIO_Init(GPIOD, &GPIO_InitStructure); /* Configure PC.12 pin: CLK pin */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; GPIO_Init(GPIOC, &GPIO_InitStructure); } /** * @brief Initializes the SD Card and put it into StandBy State (Ready for * data transfer). * @param None * @retval None */ void SD_LowLevel_Init(void) { GPIO_InitTypeDef GPIO_InitStructure; /* GPIOC and GPIOD Periph clock enable */ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC | RCC_AHB1Periph_GPIOD | SD_DETECT_GPIO_CLK, ENABLE); GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_SDIO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_SDIO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource10, GPIO_AF_SDIO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource11, GPIO_AF_SDIO); GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_SDIO); GPIO_PinAFConfig(GPIOD, GPIO_PinSource2, GPIO_AF_SDIO); /* Configure PC.08, PC.09, PC.10, PC.11 pins: D0, D1, D2, D3 pins */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_25MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_Init(GPIOC, &GPIO_InitStructure); /* Configure PD.02 CMD line */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; GPIO_Init(GPIOD, &GPIO_InitStructure); /* Configure PC.12 pin: CLK pin */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; GPIO_Init(GPIOC, &GPIO_InitStructure); /*!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin */ GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure); /* Enable the SDIO APB2 Clock */ RCC_APB2PeriphClockCmd(RCC_APB2Periph_SDIO, ENABLE); /* Enable the DMA2 Clock */ RCC_AHB1PeriphClockCmd(SD_SDIO_DMA_CLK, ENABLE); } /** * @brief Configures the DMA2 Channel4 for SDIO Tx request. * @param BufferSRC: pointer to the source buffer * @param BufferSize: buffer size * @retval None */ void SD_LowLevel_DMA_TxConfig(uint32_t *BufferSRC, uint32_t BufferSize) { DMA_InitTypeDef SDDMA_InitStructure; DMA_ClearFlag(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_FEIF | SD_SDIO_DMA_FLAG_DMEIF | SD_SDIO_DMA_FLAG_TEIF | SD_SDIO_DMA_FLAG_HTIF | SD_SDIO_DMA_FLAG_TCIF); /* DMA2 Stream3 or Stream6 disable */ DMA_Cmd(SD_SDIO_DMA_STREAM, DISABLE); /* DMA2 Stream3 or Stream6 Config */ DMA_DeInit(SD_SDIO_DMA_STREAM); SDDMA_InitStructure.DMA_Channel = SD_SDIO_DMA_CHANNEL; SDDMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS; SDDMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)BufferSRC; SDDMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral; SDDMA_InitStructure.DMA_BufferSize = 0; SDDMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; SDDMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; SDDMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word; SDDMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; SDDMA_InitStructure.DMA_Mode = DMA_Mode_Normal; SDDMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh; SDDMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable; SDDMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full; SDDMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_INC4; SDDMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_INC4; DMA_Init(SD_SDIO_DMA_STREAM, &SDDMA_InitStructure); DMA_FlowControllerConfig(SD_SDIO_DMA_STREAM, DMA_FlowCtrl_Peripheral); /* DMA2 Stream3 or Stream6 enable */ DMA_Cmd(SD_SDIO_DMA_STREAM, ENABLE); } /** * @brief Configures the DMA2 Channel4 for SDIO Rx request. * @param BufferDST: pointer to the destination buffer * @param BufferSize: buffer size * @retval None */ void SD_LowLevel_DMA_RxConfig(uint32_t *BufferDST, uint32_t BufferSize) { DMA_InitTypeDef SDDMA_InitStructure; DMA_ClearFlag(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_FEIF | SD_SDIO_DMA_FLAG_DMEIF | SD_SDIO_DMA_FLAG_TEIF | SD_SDIO_DMA_FLAG_HTIF | SD_SDIO_DMA_FLAG_TCIF); /* DMA2 Stream3 or Stream6 disable */ DMA_Cmd(SD_SDIO_DMA_STREAM, DISABLE); /* DMA2 Stream3 or Stream6 Config */ DMA_DeInit(SD_SDIO_DMA_STREAM); SDDMA_InitStructure.DMA_Channel = SD_SDIO_DMA_CHANNEL; SDDMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SDIO_FIFO_ADDRESS; SDDMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)BufferDST; SDDMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory; SDDMA_InitStructure.DMA_BufferSize = 0; SDDMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; SDDMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; SDDMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word; SDDMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; SDDMA_InitStructure.DMA_Mode = DMA_Mode_Normal; SDDMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh; SDDMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Enable; SDDMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full; SDDMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_INC4; SDDMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_INC4; DMA_Init(SD_SDIO_DMA_STREAM, &SDDMA_InitStructure); DMA_FlowControllerConfig(SD_SDIO_DMA_STREAM, DMA_FlowCtrl_Peripheral); /* DMA2 Stream3 or Stream6 enable */ DMA_Cmd(SD_SDIO_DMA_STREAM, ENABLE); } /** * @brief Returns the DMA End Of Transfer Status. * @param None * @retval DMA SDIO Stream Status. */ uint32_t SD_DMAEndOfTransferStatus(void) { return (uint32_t)DMA_GetFlagStatus(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_TCIF); } #endif /******************************************************************************* * Function Name : NVIC_Configuration * Description : Configures Vector Table base location. * Input : None * Output : None * Return : None *******************************************************************************/ void NVIC_Configuration(void) { #ifdef VECT_TAB_RAM /* Set the Vector Table base location at 0x20000000 */ NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0); #else /* VECT_TAB_FLASH */ /* Set the Vector Table base location at 0x08000000 */ NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0); #endif } /******************************************************************************* * Function Name : SysTick_Configuration * Description : Configures the SysTick for OS tick. * Input : None * Output : None * Return : None *******************************************************************************/ void SysTick_Configuration(void) { RCC_ClocksTypeDef rcc_clocks; rt_uint32_t cnts; RCC_GetClocksFreq(&rcc_clocks); cnts = (rt_uint32_t)rcc_clocks.HCLK_Frequency / RT_TICK_PER_SECOND; SysTick_Config(cnts); SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK); } /** * This is the timer interrupt service routine. * */ void SysTick_Handler(void) { /* enter interrupt */ rt_interrupt_enter(); rt_tick_increase(); /* leave interrupt */ rt_interrupt_leave(); } /** * This function will initial STM32 board. */ void rt_hw_board_init() { /* NVIC Configuration */ NVIC_Configuration(); /* Configure the SysTick */ SysTick_Configuration(); rt_hw_usart_init(); #ifdef RT_USING_CONSOLE rt_console_set_device(CONSOLE_DEVICE); #endif } /*@}*/