534 lines
13 KiB
C
534 lines
13 KiB
C
/**
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******************************************************************************
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* @file scanmode.c
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* @author TMC Scan Team
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* @version V1.0.0
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* @date 09/06/2019
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* @brief This file provides the different modes of scanning.
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******************************************************************************
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*
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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* TIME. AS A RESULT, TMC SHALL NOT BE HELD LIABLE FOR ANY
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* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*
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* <h2><center>© COPYRIGHT 2016 TMC</center></h2>
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******************************************************************************
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**/
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#include "global.h"
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uint8_t gAutoModeOverTimeFlag = TRUE; //连续模式下，同码延时和异码延时，第一次解码不需要延时；或者扫码一直不成功，定时器如果超时，解码也不需要延时
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uint8_t gCmdStartFlag = FALSE; //命令模式下，开启扫码命令标记；FALSE表示禁止扫码，TRUE表示使能扫码
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uint8_t gSensorChangeFlag = FALSE; //环境变化标记,FALSE表明环境无变化，TRUE表明环境有变化
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ImageSizeType gLastPictureSize = DCMI_640_480; //感应模式下上一次采图标记，感知环境变化时由于RAM不足，需要采集小图；当进入解码状态时，采集图像尺寸恢复到640*480
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uint32_t gCurrentPictureAddr = DCMIBUFADDR; //感应模式下，需要采集两张图像，标记当前采集图像的地址
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uint8_t gPreImage[MAXCODELEN] = {0};
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uint32_t gPrebarcodelen = 0;
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int gPreCodeType = Communication_Id;
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uint8_t gCmdModeTimeFlag = FALSE; //命令模式下，定时器开启标志，默认未开启
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extern uint8_t gLicenseFlag;
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extern uint32_t gFunTrace;
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/**
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* @function AppScanModeInit
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* @brief 配置识读模块的初始条件
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* @param[in] 无
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* @return 无
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*/
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void AppScanModeInit(void)
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{
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switch(gConfgBuf.scanCodeMode)
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{
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case AUTOMODE:
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gAutoModeOverTimeFlag = TRUE;
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break;
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case CMDMODE:
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gCmdStartFlag = TRUE; //命令模式下，开启扫码命令标记；FALSE表示禁止扫码，TRUE表示使能扫码
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break;
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case CMDTIMEMODE:
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gCmdStartFlag = FALSE; //命令模式下，开启扫码命令标记；FALSE表示禁止扫码，TRUE表示使能扫码
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break;
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case SENSORMODE:
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gAutoModeOverTimeFlag = TRUE;
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gSensorChangeFlag = FALSE; //环境变化标记,FALSE表明环境无变化，TRUE表明环境有变化
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gLastPictureSize = DCMI_640_480;
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gCurrentPictureAddr = DCMIBUFADDR;
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break;
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default:
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break;
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}
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}
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/**
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* @function AutoScanMode
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* @brief 连续模式，一直处于解码状态
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* @param[in] BarData 结构体，存放解码数据
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* @return 返回值为正，则为成功解码
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*/
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int AutoScanMode(BarData *pCode)
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{
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int result = 0;
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//灯光控制
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AppLEDControl(gConfgBuf.ledStatus);
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//采集图像
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if(!DCMI_CaptureOnePic(DCMIBUFADDR, DCMI_640_480))return FALSE;
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//解码
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result = TMC_Scan_Decode(pCode);
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if(result > 0)
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{
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if(gPrebarcodelen && (gPrebarcodelen == pCode->datalen))
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{
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if(!memcmp(gPreImage, pCode->bardata, pCode->datalen))
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{
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//同码延时,定时器时间大于延时，输出；或者超时标记为真
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if((gAutoModeOverTimeFlag == TRUE) || (TimerHSIClockCount(TIM4, GET_TIMER) >= (gConfgBuf.sameCodeInterval * CLK_BASE)))
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{
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gPrebarcodelen = pCode->datalen;
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Memcpy(gPreImage, pCode->bardata, pCode->datalen);
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gAutoModeOverTimeFlag = FALSE;
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TimerHSIClockCount(TIM4, STOP_TIMER);
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TimerHSIClockCount(TIM4, START_TIMER);
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return TRUE;
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}
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else
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{
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return FALSE;
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}
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}
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}
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//异码延时,定时器时间大于延时，输出；或者超时标记为真
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if((gAutoModeOverTimeFlag == TRUE) || (TimerHSIClockCount(TIM4, GET_TIMER) >= (gConfgBuf.differentCodeInterval * CLK_BASE)))
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{
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gPrebarcodelen = pCode->datalen;
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Memcpy(gPreImage, pCode->bardata, pCode->datalen);
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gAutoModeOverTimeFlag = FALSE;
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TimerHSIClockCount(TIM4, STOP_TIMER);
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TimerHSIClockCount(TIM4, START_TIMER);
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return TRUE;
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}
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}
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else
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{
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if((TimerHSIClockCount(TIM4, GET_TIMER) >= (gConfgBuf.sameCodeInterval * CLK_BASE))
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&& (TimerHSIClockCount(TIM4, GET_TIMER) >= (gConfgBuf.differentCodeInterval * CLK_BASE)))
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{
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gAutoModeOverTimeFlag = TRUE;
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}
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}
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return FALSE;
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}
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/**
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* @function CmdScanMode
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* @brief 命令模式，如果接收到开启扫码命令，才开始解码
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* @param[in] BarData 结构体，存放解码数据
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* @return 返回值为正，则为成功解码
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*/
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int CmdScanMode(BarData *pCode)
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{
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int result = 0;
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//判断是否收到解码命令
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if(gCmdStartFlag)
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{
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//灯光控制
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AppLEDControl(gConfgBuf.ledStatus);
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//采集图像
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if(!DCMI_CaptureOnePic(DCMIBUFADDR, DCMI_640_480))return FALSE;
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//解码
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result = TMC_Scan_Decode(pCode);
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//识读成功
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if(result > 0)
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{
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//灯光控制
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AppLEDControl(!gConfgBuf.ledStatus);
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//记录码制类型
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gPreCodeType = pCode->bartype;
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//清除命令标记
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gCmdStartFlag = FALSE; //关闭扫码
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TimerHSIClockCount(TIM5, STOP_TIMER);
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return result;
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}
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}
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else
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{
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//灯光控制
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AppLEDControl(!gConfgBuf.ledStatus);
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}
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return result;
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}
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/**
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* @function CmdScanTimeMode
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* @brief 命令超时模式，如果接收到开启扫码命令，才开始解码，如果超时则自动关闭扫码
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* @param[in] BarData 结构体，存放解码数据
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* @return 返回值为正，则为成功解码
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*/
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int CmdScanTimeMode(BarData *pCode)
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{
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int result = 0;
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//判断是否收到解码命令
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if(gCmdStartFlag)
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{
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//如果开启定时，并且时间未超时，则扫码
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if(TimerHSIClockCount(TIM5, GET_TIMER) <= gConfgBuf.cmdModeTime * 12000)
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{
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//灯光控制
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AppLEDControl(gConfgBuf.ledStatus);
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//采集图像
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if(!DCMI_CaptureOnePic(DCMIBUFADDR, DCMI_640_480))return FALSE;
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//解码
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result = TMC_Scan_Decode(pCode);
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//识读成功
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if(result > 0)
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{
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//灯光控制
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AppLEDControl(!gConfgBuf.ledStatus);
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//记录码制类型
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gPreCodeType = pCode->bartype;
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//清除命令标记
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gCmdStartFlag = FALSE; //关闭扫码
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TimerHSIClockCount(TIM5, STOP_TIMER);
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return result;
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}
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}
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else
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{
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//超时则关闭扫码
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gCmdStartFlag = FALSE;
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TimerHSIClockCount(TIM5, STOP_TIMER);
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//灯光控制
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AppLEDControl(!gConfgBuf.ledStatus);
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}
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}
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else
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{
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//灯光控制
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AppLEDControl(!gConfgBuf.ledStatus);
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}
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return result;
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}
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#ifdef LIGHTING
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/**
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* @function SensorScanMode
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* @brief 感应模式，如果感应环境有变化，再开启解码
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* @param[in] BarData 结构体，存放解码数据
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* @return 返回值为正，则为成功解码
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*/
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int SensorScanMode(BarData *pCode)
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{
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int result = 0;
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//环境是否有变化，默认值是"无变化"
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if(!gSensorChangeFlag) //环境无变化
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{
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//灯光控制
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AppLEDControl(!gConfgBuf.ledStatus);
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//判断上一次采图尺寸是否为640*480，是的情况下需要采两张图
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if(gLastPictureSize == DCMI_640_480)
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{
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TimerDelay(TIM2, gConfgBuf.stableTime);
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gLastPictureSize = DCMI_320_240;
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gCurrentPictureAddr = DCMIBUFADDR;
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if(!DCMI_CaptureOnePic(gCurrentPictureAddr, gLastPictureSize))return FALSE;
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gCurrentPictureAddr += HALF_BUF_SIZE;
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}
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if(!DCMI_CaptureOnePic(gCurrentPictureAddr, gLastPictureSize))return FALSE;
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if(gCurrentPictureAddr == DCMIBUFADDR)
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{
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gCurrentPictureAddr += HALF_BUF_SIZE;
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}
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else
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{
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gCurrentPictureAddr = DCMIBUFADDR;
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}
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//图像差异明显？
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if(DCMI_Differ(HALF_BUF_SIZE) == TMC_OK)
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{
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gSensorChangeFlag = TRUE;
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gLastPictureSize = DCMI_640_480;
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TimerHSIClockCount(TIM5, START_TIMER);
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}
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else
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{
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return result;
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}
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}
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//环境有变化
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//灯光控制
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AppLEDControl(gConfgBuf.ledStatus);
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//图像采集
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if(!DCMI_CaptureOnePic(DCMIBUFADDR, gLastPictureSize))return FALSE;
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//解码
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result = TMC_Scan_Decode(pCode);
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//识读成功 或 超时
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if(result > 0)
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{
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if(gPrebarcodelen && (gPrebarcodelen == pCode->datalen))
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{
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if(!memcmp(gPreImage, pCode->bardata, pCode->datalen))
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{
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//同码延时,定时器时间大于延时，输出；或者超时标记为真
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if((gAutoModeOverTimeFlag == TRUE) || (TimerHSIClockCount(TIM4, GET_TIMER) >= (gConfgBuf.sameCodeInterval * CLK_BASE)))
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{
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Memcpy(gPreImage, pCode->bardata, pCode->datalen);
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gPrebarcodelen = pCode->datalen;
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gAutoModeOverTimeFlag = FALSE;
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TimerHSIClockCount(TIM4, STOP_TIMER);
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TimerHSIClockCount(TIM4, START_TIMER);
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TimerHSIClockCount(TIM5, STOP_TIMER);
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gSensorChangeFlag = FALSE;
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return TRUE;
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}
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return FALSE;
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}
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}
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//异码延时,定时器时间大于延时，输出；或者超时标记为真
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if((gAutoModeOverTimeFlag == TRUE) || (TimerHSIClockCount(TIM4, GET_TIMER) >= (gConfgBuf.differentCodeInterval * CLK_BASE)))
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{
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Memcpy(gPreImage, pCode->bardata, pCode->datalen);
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gPrebarcodelen = pCode->datalen;
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gAutoModeOverTimeFlag = FALSE;
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TimerHSIClockCount(TIM4, STOP_TIMER);
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TimerHSIClockCount(TIM4, START_TIMER);
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TimerHSIClockCount(TIM5, STOP_TIMER);
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gSensorChangeFlag = FALSE;
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return TRUE;
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}
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return FALSE;
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}
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else
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{
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if((TimerHSIClockCount(TIM4, GET_TIMER) >= (gConfgBuf.sameCodeInterval * CLK_BASE)) && (TimerHSIClockCount(TIM4, GET_TIMER) >= (gConfgBuf.differentCodeInterval * CLK_BASE)))
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{
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gAutoModeOverTimeFlag = TRUE;
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TimerHSIClockCount(TIM4, STOP_TIMER);
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}
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}
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if ((TimerHSIClockCount(TIM5, GET_TIMER) >= SENSOR_TIME_OUT))
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{
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TimerHSIClockCount(TIM5, STOP_TIMER);
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gSensorChangeFlag = FALSE;
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}
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return result;
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}
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#else
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/**
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* @function SensorScanMode
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* @brief 感应模式，如果感应环境有变化，再开启解码
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* @param[in] BarData 结构体，存放解码数据
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* @return 返回值为正，则为成功解码
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*/
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int SensorScanMode(BarData *pCode)
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{
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int result = 0;
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//环境是否有变化，默认值是"无变化"
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if(!gSensorChangeFlag) //环境无变化
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{
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//灯光控制
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AppLEDControl(!gConfgBuf.ledStatus);
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//判断上一次采图尺寸是否为640*480，是的情况下需要采两张图
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if(gLastPictureSize == DCMI_640_480)
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{
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gLastPictureSize = DCMI_320_240;
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gCurrentPictureAddr = DCMIBUFADDR;
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if(!DCMI_CaptureOnePic(gCurrentPictureAddr, gLastPictureSize))return FALSE;
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gCurrentPictureAddr += HALF_BUF_SIZE;
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}
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if(!DCMI_CaptureOnePic(gCurrentPictureAddr, gLastPictureSize))return FALSE;
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if(gCurrentPictureAddr == DCMIBUFADDR)
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{
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gCurrentPictureAddr += HALF_BUF_SIZE;
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}
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else
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{
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gCurrentPictureAddr = DCMIBUFADDR;
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}
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//图像差异明显？
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if(DCMI_Differ(HALF_BUF_SIZE) == TMC_OK)
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{
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gSensorChangeFlag = TRUE;
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gLastPictureSize = DCMI_640_480;
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TimerHSIClockCount(TIM4, START_TIMER);
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memset(gPreImage, 0, MAXCODELEN);
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}
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else
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{
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return result;
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}
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}
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//环境有变化
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//灯光控制
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AppLEDControl(gConfgBuf.ledStatus);
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//图像采集
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if(!DCMI_CaptureOnePic(DCMIBUFADDR, gLastPictureSize))return FALSE;
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//解码
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result = TMC_Scan_Decode(pCode);
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//识读成功 或 超时
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if(result > 0)
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{
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if(!memcmp(gPreImage, pCode->bardata, pCode->datalen)) //如果成功，相同条码延时
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{
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TimerHSIClockCount(TIM4, START_TIMER);
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return FALSE;
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}
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else
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{
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Memcpy(gPreImage, pCode->bardata, pCode->datalen);
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TimerHSIClockCount(TIM4, START_TIMER);
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return TRUE;
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}
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}
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if(TimerHSIClockCount(TIM4, GET_TIMER) >= TIME_OUT)
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{
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gSensorChangeFlag = FALSE;
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//灯光控制
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AppLEDControl(!gConfgBuf.ledStatus);
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TimerHSIClockCount(TIM4, STOP_TIMER);
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}
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return result;
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}
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#endif
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/**
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* @function SingleMode
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* @brief 扫码成功一次，移开，再移入才成功
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* @param[in] BarData 结构体，存放解码数据
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* @return 返回值为正，则为成功解码
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*/
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int SingleMode(BarData *pCode)
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{
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int result = 0;
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//灯光控制
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AppLEDControl(gConfgBuf.ledStatus);
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//采集图像
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if(!DCMI_CaptureOnePic(DCMIBUFADDR, DCMI_640_480))return FALSE;
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//解码
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result = TMC_Scan_Decode(pCode);
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//识读成功
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if(result > 0)
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{
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//长度相等
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if(gPrebarcodelen && (gPrebarcodelen == pCode->datalen))
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{
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if(memcmp(pCode->bardata, gPreImage, gPrebarcodelen)) //码不同
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{
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gPrebarcodelen = pCode->datalen;
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memcpy(gPreImage, pCode->bardata, gPrebarcodelen);
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return TRUE;
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}
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}
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else //长度不等，码不同
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{
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gPrebarcodelen = pCode->datalen;
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memcpy(gPreImage, pCode->bardata, gPrebarcodelen);
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return TRUE;
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}
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}
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else
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{
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gPrebarcodelen = 0;
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memset(gPreImage, 0, MAXCODELEN);
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}
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return FALSE;
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}
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/**
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* @function ScanModeReceiveData
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* @brief 扫码模块
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* @param[in] BarData 结构体，存放解码数据
|
||
* @return TRUE 解码成功
|
||
* FALSE 解码失败
|
||
*/
|
||
uint8_t ScanModeReceiveData(BarData *bardata)
|
||
{
|
||
int ret = 0;
|
||
|
||
if(gLicenseFlag)
|
||
{
|
||
return FALSE;
|
||
}
|
||
|
||
gFunTrace = 36;
|
||
|
||
switch(gConfgBuf.scanCodeMode)
|
||
{
|
||
case AUTOMODE:
|
||
ret = AutoScanMode(bardata);
|
||
break;
|
||
|
||
case CMDMODE: //命令模式
|
||
ret = CmdScanMode(bardata);
|
||
break;
|
||
|
||
case CMDTIMEMODE: //命令时间模式
|
||
ret = CmdScanTimeMode(bardata);
|
||
break;
|
||
|
||
case SENSORMODE://感应模式
|
||
ret = SensorScanMode(bardata);
|
||
break;
|
||
|
||
case SINGLEMODE: //单次模式
|
||
ret = SingleMode(bardata);
|
||
break;
|
||
|
||
default:
|
||
ret = AutoScanMode(bardata);
|
||
break;
|
||
}
|
||
|
||
if(ret > 0)
|
||
{
|
||
return TRUE;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|