230 lines
9.7 KiB
C
230 lines
9.7 KiB
C
/**
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*******************************************************************************************************
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* @file fm33lg0xx_fl_dma.c
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* @author FMSH Application Team
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* @brief Src file of DMA FL Module
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*******************************************************************************************************
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* @attention
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*
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* Copyright (c) [2021] [Fudan Microelectronics]
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* THIS SOFTWARE is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*
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*******************************************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "fm33lg0xx_fl.h"
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/** @addtogroup FM33LG0XX_FL_Driver
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* @{
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*/
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/** @addtogroup DMA
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* @{
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*/
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#ifdef FL_DMA_DRIVER_ENABLED
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/* Private macros ------------------------------------------------------------*/
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/** @addtogroup DMA_FL_Private_Macros
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* @{
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*/
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#define IS_FL_DMA_INSTANCE(INTANCE) ((INTANCE) == DMA)
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#define IS_FL_DMA_PRIORITY(__VALUE__) (((__VALUE__) == FL_DMA_PRIORITY_LOW)||\
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((__VALUE__) == FL_DMA_PRIORITY_MEDIUM)||\
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((__VALUE__) == FL_DMA_PRIORITY_HIGH)||\
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((__VALUE__) == FL_DMA_PRIORITY_VERYHIGH))
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#define IS_FL_DMA_CIRC_MODE(__VALUE__) (((__VALUE__) == FL_DISABLE)||\
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((__VALUE__) == FL_ENABLE))
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#define IS_FL_DMA_DIRECION(__VALUE__) (((__VALUE__) == FL_DMA_DIR_PERIPHERAL_TO_RAM)||\
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((__VALUE__) == FL_DMA_DIR_RAM_TO_PERIPHERAL)||\
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((__VALUE__) == FL_DMA_DIR_FLASH_TO_RAM)||\
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((__VALUE__) == FL_DMA_DIR_RAM_TO_FLASH))
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#define IS_FL_DMA_DATA_SIZE(__VALUE__) (((__VALUE__) == FL_DMA_BANDWIDTH_8B)||\
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((__VALUE__) == FL_DMA_BANDWIDTH_16B)||\
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((__VALUE__) == FL_DMA_BANDWIDTH_32B))
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#define IS_FL_DMA_INCMODE(__VALUE__) (((__VALUE__) == FL_DMA_MEMORY_INC_MODE_INCREASE)||\
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((__VALUE__) == FL_DMA_MEMORY_INC_MODE_DECREASE) ||\
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((__VALUE__) == FL_DMA_CH7_RAM_INC_MODE_INCREASE)||\
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((__VALUE__) == FL_DMA_CH7_RAM_INC_MODE_DECREASE)||\
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((__VALUE__) == FL_DMA_CH7_FLASH_INC_MODE_INCREASE)||\
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((__VALUE__) == FL_DMA_CH7_FLASH_INC_MODE_DECREASE))
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#define IS_FL_DMA_PERIPH(__VALUE__) (((__VALUE__) == FL_DMA_PERIPHERAL_FUNCTION1)||\
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((__VALUE__) == FL_DMA_PERIPHERAL_FUNCTION2)||\
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((__VALUE__) == FL_DMA_PERIPHERAL_FUNCTION3)||\
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((__VALUE__) == FL_DMA_PERIPHERAL_FUNCTION4)||\
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((__VALUE__) == FL_DMA_PERIPHERAL_FUNCTION5)||\
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((__VALUE__) == FL_DMA_PERIPHERAL_FUNCTION6)||\
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((__VALUE__) == FL_DMA_PERIPHERAL_FUNCTION7)||\
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((__VALUE__) == FL_DMA_PERIPHERAL_FUNCTION8))
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/**
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* @}
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*/
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/* Exported functions --------------------------------------------------------*/
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/** @addtogroup DMA_FL_EF_Init
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* @{
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*/
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/**
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* @brief 复位对应DMA寄存器.
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* @param DMAx
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* @retval ErrorStatus枚举值:
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* -FL_PASS 外设寄存器值恢复复位值
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* -FL_FAIL 未成功执行
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*/
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FL_ErrorStatus FL_DMA_DeInit(DMA_Type *DMAx)
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{
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assert_param(IS_FL_DMA_INSTANCE(DMAx));
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/* 使能外设复位 */
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FL_RMU_EnablePeripheralReset(RMU);
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/* 复位外设寄存器 */
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FL_RMU_EnableResetAHBPeripheral(RMU, FL_RMU_RSTAHB_DMA);
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FL_RMU_DisableResetAHBPeripheral(RMU, FL_RMU_RSTAHB_DMA);
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/* 关闭外设总线始时钟和工作时钟 */
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FL_CMU_DisableGroup2BusClock(FL_CMU_GROUP2_BUSCLK_DMA);
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/* 锁定外设复位 */
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FL_RMU_DisablePeripheralReset(RMU);
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return FL_PASS;
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}
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/**
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* @brief 根据 DMA_InitStruct 的配置信息初始化对应外设入口地址的寄存器值.
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* @param DMAx DMAx
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* @param DMA_InitStruct 指向一个 @ref FL_DMA_InitTypeDef 结构体
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* 其中包含了外设的相关配置信息.
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* @param Channel This parameter can be one of the following values:
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* @arg @ref FL_DMA_CHANNEL_0
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* @arg @ref FL_DMA_CHANNEL_1
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* @arg @ref FL_DMA_CHANNEL_2
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* @arg @ref FL_DMA_CHANNEL_3
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* @arg @ref FL_DMA_CHANNEL_4
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* @arg @ref FL_DMA_CHANNEL_5
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* @arg @ref FL_DMA_CHANNEL_6
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* @arg @ref FL_DMA_CHANNEL_7
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* @retval ErrorStatus枚举值
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* -FL_FAIL 配置过程发生错误
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* -FL_PASS 配置成功
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*/
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FL_ErrorStatus FL_DMA_Init(DMA_Type *DMAx, FL_DMA_InitTypeDef *initStruct, uint32_t channel)
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{
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/* 参数检查 */
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assert_param(IS_FL_DMA_INSTANCE(DMAx));
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assert_param(IS_FL_DMA_PRIORITY(initStruct->priority));
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assert_param(IS_FL_DMA_CIRC_MODE(initStruct->circMode));
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assert_param(IS_FL_DMA_DIRECION(initStruct->direction));
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assert_param(IS_FL_DMA_DATA_SIZE(initStruct->dataSize));
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assert_param(IS_FL_DMA_INCMODE(initStruct->memoryAddressIncMode));
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/* 开启时钟 */
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FL_CMU_EnableGroup2BusClock(FL_CMU_GROUP2_BUSCLK_DMA);
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/* 配置通道优先级 */
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FL_DMA_SetPriority(DMAx, initStruct->priority, channel);
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/* RAM地址方向 */
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FL_DMA_SetMemoryIncrementMode(DMAx, initStruct->memoryAddressIncMode, channel);
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/* 传输方向 */
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FL_DMA_SetTransmissionDirection(DMAx, initStruct->direction, channel);
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/* 数据宽度 */
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FL_DMA_SetBandwidth(DMAx, initStruct->dataSize, channel);
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/* 循环模式 */
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if(initStruct->circMode == FL_ENABLE)
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{
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if(channel == FL_DMA_CHANNEL_7)
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{
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return FL_FAIL;
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}
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FL_DMA_EnableCircularMode(DMAx, channel);
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}
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else
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{
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FL_DMA_DisableCircularMode(DMAx, channel);
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}
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/* 如果是通道7 外设地址实际就是FLASH地址，因此这里针对通道7做了单独处理 */
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if(channel != FL_DMA_CHANNEL_7)
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{
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assert_param(IS_FL_DMA_PERIPH(initStruct->periphAddress));
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FL_DMA_SetPeripheralMap(DMAx, initStruct->periphAddress, channel);
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}
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else
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{
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FL_DMA_SetFlashAddrIncremental(DMAx, initStruct->flashAddressIncMode);
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}
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return FL_PASS;
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}
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/**
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* @brief 设置 CRC_InitStruct 为默认配置
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* @param CRC_InitStruct 指向需要将值设置为默认配置的结构体 @ref FL_CRC_InitTypeDef 结构体
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*
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* @retval None
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*/
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void FL_DMA_StructInit(FL_DMA_InitTypeDef *initStruct)
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{
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initStruct->circMode = FL_DISABLE;
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initStruct->dataSize = FL_DMA_BANDWIDTH_8B;
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initStruct->direction = FL_DMA_DIR_PERIPHERAL_TO_RAM;
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initStruct->periphAddress = FL_DMA_PERIPHERAL_FUNCTION1;
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initStruct->priority = FL_DMA_PRIORITY_LOW;
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initStruct->memoryAddressIncMode = FL_DMA_MEMORY_INC_MODE_INCREASE;
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}
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/**
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* @brief 启动一次DMA传输.
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* @param DMAx DMAx
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* @param configStruct 指向一个 @ref FL_DMA_ConfigTypeDef 结构体
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* 其中包含了外设的相关配置信息.
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* @param Channel This parameter can be one of the following values:
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* @arg @ref FL_DMA_CHANNEL_0
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* @arg @ref FL_DMA_CHANNEL_1
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* @arg @ref FL_DMA_CHANNEL_2
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* @arg @ref FL_DMA_CHANNEL_3
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* @arg @ref FL_DMA_CHANNEL_4
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* @arg @ref FL_DMA_CHANNEL_5
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* @arg @ref FL_DMA_CHANNEL_6
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* @arg @ref FL_DMA_CHANNEL_7
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* @retval ErrorStatus枚举值
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* -FL_FAIL 过程发生错误可能是超时也可能是地址非法
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* -FL_PASS 成功
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*/
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FL_ErrorStatus FL_DMA_StartTransmission(DMA_Type *DMAx, FL_DMA_ConfigTypeDef *configStruct, uint32_t channel)
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{
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/* 配置传输个数 */
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FL_DMA_WriteTransmissionSize(DMAx, configStruct->transmissionCount, channel);
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/* 配置Memory地址 */
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FL_DMA_WriteMemoryAddress(DMAx, configStruct->memoryAddress, channel);
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/* 清除通道中断标志位 */
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FL_DMA_ClearFlag_TransferHalfComplete(DMAx, channel);
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FL_DMA_ClearFlag_TransferComplete(DMAx, channel);
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/* 使能DMA通道使能开关 */
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FL_DMA_EnableChannel(DMAx, channel);
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return FL_PASS;
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}
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/**
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* @}
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*/
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#endif /* FL_DIVAS_DRIVER_ENABLED */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/*************************(C) COPYRIGHT Fudan Microelectronics **** END OF FILE*************************/
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