158 lines
8.7 KiB
C
158 lines
8.7 KiB
C
#include "logflash.h"
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#include <string.h>
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#include "sysport.h"
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#include "rtc.h"
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#include "user_flash.h"
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/********************************************************************************
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* @file logflash.c
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* @author 晏诚科技 Mr.Wang
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* @version V1.0.0
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* @date 11-Dec-2018
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* @brief MCU未使用的FLASH空间用于硬件日志的存储
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******************************************************************************
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* @attention:LogoFlashInfo区域（占用1页空间，区域起始地址：LOGFLASH_INFO_ADDRESS）存放uLogFlash共用体信息，用来纪录logflash运行的信息。
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* LogoFlash区域（内部FLASH余下的所有空间，区域其实地址为：LOGFLASH_START_ADDRESS）紧跟LogoFlashInfo区域后面，用于存放LOG数据。
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* @use：
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* 先调用void LogFlash_Init(void)初始化，上层需要定义LOG_AREA_ADDR地址
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*******************************************************************************/
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/*****************************************
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*供内部使用常变量
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****************************************/
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LogFlash_u uLogFlash ; //LogFlash信息共用体变量uLogFlash，存放logflash相关信息
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/****************************************************************************
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* 名 称：void LogFlash_Init(void)
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* 功 能：初始化LogFlash相关配置信息结构体uLogFlash，串口输出历史LOG
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****************************************************************************/
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void LogFlash_Init(void)
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{
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Read_Flash_Byte(LOGFLASH_INFO_ADDRESS, uLogFlash.bytes, sizeof(LogFlash_s)) ; //读取存在flash中LogoFlashInfo区域存储的LogFlash信息共用体数据
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if( (uLogFlash.sLogFlash.head == 0x50505050) && (uLogFlash.sLogFlash.tail == 0x05050505)) /*条件成立说明LogFlash已经被配置过*/
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{
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AppLogPrintf("Log Flash存储溢出：%d次 。\r\n本地LOG: ", uLogFlash.sLogFlash.overflowCounter) ; //输出LogoFlash区域存储溢出的次数
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ReadLogFromFlash(LOGFLASH_START_ADDRESS, uLogFlash.sLogFlash.writeOffset) ; //将现存的所有LOG读出，通过debug串口输出
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uLogFlash.sLogFlash.overflowCounter = 0 ; //串口输出LOG后，将LogoFlash区域存储溢出的次数清零。
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Refresh_LogFlash_Info() ; //更新存在flash中LogoFlashInfo区域存储的LogFlash信息共用体数据
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return ;
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}
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else /*条件不成立说明LogFlash第一次被初始化*/
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{
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uLogFlash.sLogFlash.head = 0x50505050 ; //uLogFlash信息 数据头
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uLogFlash.sLogFlash.tail = 0x05050505 ; //uLogFlash信息 数据尾
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uLogFlash.sLogFlash.overflowCounter = 0 ; //uLogFlash信息 存储区域溢出次数
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Erase_LogFlash() ; //将LogoFlash存储区域擦除
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}
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}
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/**************************************************************************************************
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* 名 称：void Erase_LogFlash(void)
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* 功能说明：擦除LogFlash存储区的所有数据
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* 调用方法：外部调用
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*************************************************************************************************/
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void Erase_LogFlash(void)
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{
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FLASH_Unlock(); //解锁FLASH
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for( uint8_t n = 0; n< LOGFLASH_SIZE/FLASH_PAGE_SIZE; n++) //循环页，擦除LOGFLASH区域
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{
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FLASH_ErasePage(LOGFLASH_START_ADDRESS+n*FLASH_PAGE_SIZE) ;//擦除一页数据
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}
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uLogFlash.sLogFlash.writeOffset = 0 ; //uLogFlash信息 写偏移量清零
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uLogFlash.sLogFlash.readOffset = 0 ; //uLogFlash信息 读偏移量清零
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Refresh_LogFlash_Info() ; //将uLogFlash共用体数据存储到LogoFlashInfo区域中
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FLASH_Lock(); //FLASH上锁
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}
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/****************************************************************************
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* 名 称：void Refresh_LogFlash_Info(void)
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* 功 能：读取存在flash中LogoFlashInfo区域存储的LogFlash信息共用体数据，即将uLogFlash
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* 共用体数据存储到LogoFlashInfo区域中。
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****************************************************************************/
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void Refresh_LogFlash_Info(void)
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{
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FLASH_ErasePage(LOGFLASH_INFO_ADDRESS) ; //擦除LogoFlashInfo区域
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Write_Flash_OnePage(LOGFLASH_INFO_ADDRESS, uLogFlash.bytes, sizeof(LogFlash_s)) ; //将uLogFlash共用体数据存储到LogoFlashInfo区域中
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}
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/****************************************************************************
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* 名 称：void WriteLogToFlash(char *buffer)
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* 功 能：向FLASH写入buffer
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* 入口参数：
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* @param1 *buffer 需要写入FLASH中数据缓冲区的指针
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****************************************************************************/
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void WriteLogToFlash(char *buffer)
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{
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uint16_t bufferLen = strlen(buffer) + 20 ; //计算需要分配的内存空间长度，多分配20bytes用于存储uCalendar.bytes等数据
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char* logWriteBuffer = portMalloc(bufferLen) ; //分配内存
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uint16_t outLen = 0, index = 0, timeOut = 0 ;
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outLen = snprintf((char*)(logWriteBuffer), bufferLen, "*%s %s* ",(const char*)&uCalendar.bytes[11], buffer) ; //拼接字符串，防止logFlashBuffer越界
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outLen = outLen/2+(outLen%2) ; //将logLen强制改变为2的倍数 将logLen字节长度转为半字长度
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FLASH_Unlock(); //FLASH解锁
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FLASH_ClearFlag(FLASH_FLAG_BSY | FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPRTERR) ; //清FLASH标志位
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for( timeOut=0; (SET == FLASH_GetFlagStatus(FLASH_FLAG_BSY)); timeOut++)
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{
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Wait_For_Nms(10) ;
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if( timeOut>10 )
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{
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ErrorLogPrintf("写Flash忙等待超时！") ;
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FLASH_Unlock(); //FLASH解锁
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portFree(logWriteBuffer) ;
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return ;
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}
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}
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uint16_t halfWord ;
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while(outLen--)
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{
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FLASH_ClearFlag( FLASH_FLAG_EOP ) ;
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halfWord = *(logWriteBuffer+(index++)) ; //取uint16_t类型数据halfWord LSB
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if( (halfWord & 0x00FF) == 0x0000) //将halfWord中的空字符（0x00）用“——”符号（0x2D）替换
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halfWord = halfWord | 0x002D ;
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halfWord |= *(logWriteBuffer+(index++)) << 8 ; //取uint16_t类型数据halfWord HSB
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if( (halfWord & 0xFF00) == 0x0000)
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halfWord = halfWord | 0x2D00 ;
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if( (uLogFlash.sLogFlash.writeOffset) >= (LOGFLASH_SIZE - bufferLen) ) //地址超出FLASH范围后重新开始写
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{
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uLogFlash.sLogFlash.writeOffset = 0 ;
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uLogFlash.sLogFlash.overflowCounter++ ; //溢出计数器加一
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}
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if( ( (LOGFLASH_START_ADDRESS + uLogFlash.sLogFlash.writeOffset) % FLASH_PAGE_SIZE ) == 0 ) //写入地址为页首地址则擦除此页
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{
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FLASH_ErasePage(LOGFLASH_START_ADDRESS+uLogFlash.sLogFlash.writeOffset) ;
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}
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FLASH_ProgramHalfWord(LOGFLASH_START_ADDRESS+uLogFlash.sLogFlash.writeOffset, halfWord) ; //地址偏移量先偏移后写，防止FLASH_ERROR_PG错误
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uLogFlash.sLogFlash.writeOffset += 2;
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}
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Refresh_LogFlash_Info() ; //更新存在flash中LogoFlashInfo区域存储的LogFlash信息共用体数据
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FLASH_Lock(); //FLASH上锁
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AppLogPrintf( "Flash偏移长度:%#x", uLogFlash.sLogFlash.writeOffset );
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portFree(logWriteBuffer) ; //释放动态内存空间
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}
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/****************************************************************************
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* 名 称：void ReadLogFromFlash(uint32_t readAddr, uint32_t length)
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* 功 能：向readAddr地址读出log数据，并通过串口输出
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* 入口参数：
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* @param1 readAddr 读出的地址
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* @param3 length 需要写入数据的长度
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****************************************************************************/
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void ReadLogFromFlash(uint32_t readAddr, uint32_t length)
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{
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uint8_t* logReadBuffer = portMalloc(FLASH_PAGE_SIZE) ;
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uint16_t n = length/FLASH_PAGE_SIZE ;
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while(n--)
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{
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Read_Flash_Byte(readAddr, logReadBuffer, FLASH_PAGE_SIZE) ;
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UARTx_SendData(UART_DEBUG, (char*)logReadBuffer, FLASH_PAGE_SIZE ) ;
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readAddr = readAddr+FLASH_PAGE_SIZE ;
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}
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memset(logReadBuffer, 0, FLASH_PAGE_SIZE) ;
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Read_Flash_Byte(readAddr, logReadBuffer, length%FLASH_PAGE_SIZE ) ;
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UARTx_SendData(UART_DEBUG, (char*)logReadBuffer, length%FLASH_PAGE_SIZE ) ;
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portFree(logReadBuffer) ;
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}
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