/**
  ******************************************************************************
  * @file    configuration.c
  * @author  TMC Scan Team
  * @version V1.0.0
  * @date    09/07/2019
  * @brief
  ******************************************************************************
  *
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, TMC SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  *
  * <h2><center>&copy; COPYRIGHT 2016 TMC</center></h2>
  ******************************************************************************
**/

#include "global.h"

CfgSetting *gCurrentSysCfg;
__align(8) CfgSetting gConfgBuf;

extern uint32_t gFunTrace;

//定义AB备份区地址和用户默认配置区
const uint8_t   A_CFGBUF[FLASHPAGESIZE]   __attribute__((at(A_CFGBUF_ADDR))) = {0};
const uint8_t   B_CFGBUF[FLASHPAGESIZE]   __attribute__((at(B_CFGBUF_ADDR))) = {0};

const uint16_t crc_table[16] = {0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
                                0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef
                               };

/**
 * @function    CRCGenerate
 * @brief       生成CRC校验码
 * @param[in]   pData   数据
 * @param[in]   dLen   数据的长度
 * @return      16位CRC校验码
 */
uint16_t CRCGenerate(uint8_t *pData, uint16_t dLen)
{
	uint16_t crc = 0;
	uint16_t crcleft, crcright, crcinvert;
	uint8_t  crc_H4;

	while(dLen--)
	{
		crc_H4 = (uint8_t)(crc >> 12);
		crc = crc << 4;
		crc = crc ^ crc_table[ crc_H4 ^ (*pData >> 4)];
		crc_H4 = (uint8_t)(crc >> 12);
		crc = crc << 4;
		crc = crc ^ crc_table[ crc_H4 ^ (*pData & 0x0f)];
		pData++;
	}

	crcleft = crc << 8;
	crcright = crc >> 8;
	crcinvert = crcleft | crcright;
	return crcinvert;
}

/**
 * @function    AppCfgInit
 * @brief       上电检查配置区，完成初始配置
 * @param[in]   无
 * @return      无
 */
void SystemCfgInit(void)
{
	uint8_t  snA, snB;
	uint16_t crcA, crcB, oldcrcA, oldcrcB;
	uint16_t cfgflagA, cfgflagB;
	CfgSetting *right_cfg;
	crcA = CRCGenerate((uint8_t *)(A_CFGBUF_ADDR + 2), sizeof(CfgSetting) - 2);
	crcB = CRCGenerate((uint8_t *) (B_CFGBUF_ADDR + 2), sizeof(CfgSetting) - 2);
	snA = ((CfgSetting *)A_CFGBUF_ADDR)->SN;
	snB = ((CfgSetting *)B_CFGBUF_ADDR)->SN;
	
	oldcrcA = ((CfgSetting *)A_CFGBUF_ADDR)->CRCData;
	oldcrcB = ((CfgSetting *)B_CFGBUF_ADDR)->CRCData;
	
	TMC_FLASH_Msp_Init();

	if((crcA == oldcrcA) && (crcB == oldcrcB))
	{
		if(snA == (snB + 1))
		{
			gCurrentSysCfg = (CfgSetting *)A_CFGBUF_ADDR;
		}
		else if(snB == (snA + 1))
		{
			gCurrentSysCfg = (CfgSetting *)B_CFGBUF_ADDR;
		}
		else
		{
			RestoreCfg();
		}

		Memcpy((uint8_t *) &gConfgBuf, (uint8_t *) gCurrentSysCfg, sizeof(CfgSetting));

		return;
	}

	if((crcA == oldcrcA) && (cfgflagA == CFG_EXIST_FLAG))
	{
		right_cfg = (CfgSetting *)A_CFGBUF_ADDR;
	}
	else if((crcB == oldcrcB) && (cfgflagB == CFG_EXIST_FLAG))
	{
		right_cfg = (CfgSetting *)B_CFGBUF_ADDR;
	}
	else
	{
		RestoreCfg();
		return;
	}

	gCurrentSysCfg = right_cfg;
	return;
}

void CopyCfg(CfgSetting *cfg)
{

	gConfgBuf.CRCData = cfg->CRCData;
	gConfgBuf.CfgExsitFlag = cfg->CfgExsitFlag;
	gConfgBuf.SN = cfg->SN;	
	gConfgBuf.bSettingCodeFlag = cfg->bSettingCodeFlag;
	gConfgBuf.comunitationType = cfg->comunitationType;
	gConfgBuf.uartBaudRate = cfg->uartBaudRate;
	gConfgBuf.voiceScanFinish = cfg->voiceScanFinish;
	gConfgBuf.HIDPollRate = cfg->HIDPollRate;
	gConfgBuf.HIDKBValToRelInterval = cfg->HIDKBValToRelInterval;
	gConfgBuf.HIDKBRelToValInterval = cfg->HIDKBRelToValInterval;
	gConfgBuf.buzzerStatus = cfg->buzzerStatus;
	gConfgBuf.buzzerFrequency = cfg->buzzerFrequency;
	gConfgBuf.buzzerTime = cfg->buzzerTime;
	gConfgBuf.buzzerDuty = cfg->buzzerDuty;
	gConfgBuf.voiceStatus = cfg->voiceStatus;
	gConfgBuf.voiceVolume = cfg->voiceVolume;
	gConfgBuf.ledStatus = cfg->ledStatus;
	gConfgBuf.ledFlash = cfg->ledFlash;
	gConfgBuf.OpenvoiceChangeFlag = cfg->OpenvoiceChangeFlag;
	gConfgBuf.scanCodeMode = cfg->scanCodeMode;
	gConfgBuf.cmdModeTime = cfg->cmdModeTime;
	gConfgBuf.sameCodeInterval = cfg->sameCodeInterval;
	gConfgBuf.differentCodeInterval = cfg->differentCodeInterval;
	gConfgBuf.EAN13_ID = cfg->EAN13_ID;
	gConfgBuf.EAN13 = cfg->EAN13;
	gConfgBuf.EAN13_2 = cfg->EAN13_2;
	gConfgBuf.EAN13_5 = cfg->EAN13_5;
	gConfgBuf.EAN8_ID = cfg->EAN8_ID;
	gConfgBuf.EAN8 = cfg->EAN8;
	gConfgBuf.EAN8_2 = cfg->EAN8_2;
	gConfgBuf.EAN8_5 = cfg->EAN8_5;
	gConfgBuf.UPC_A_ID = cfg->UPC_A_ID;
	gConfgBuf.UPCA = cfg->UPCA;
	gConfgBuf.UPCA_2 = cfg->UPCA_2;
	gConfgBuf.UPCA_5 = cfg->UPCA_5;
	gConfgBuf.UPCE0_ID = cfg->UPCE0_ID;
	gConfgBuf.UPCE0 = cfg->UPCE0;
	gConfgBuf.UPCE1_ID = cfg->UPCE1_ID;
	gConfgBuf.UPCE1 = cfg->UPCE1;
	gConfgBuf.UPCE1_2 = cfg->UPCE1_2;
	gConfgBuf.UPCE1_5 = cfg->UPCE1_5;
	gConfgBuf.Code128_ID = cfg->Code128_ID;
	gConfgBuf.Code128 = cfg->Code128;
	gConfgBuf.Code128MinLen = cfg->Code128MinLen;
	gConfgBuf.Code128MaxLen = cfg->Code128MaxLen;
	gConfgBuf.Code39_ID = cfg->Code39_ID;
	gConfgBuf.Code39 = cfg->Code39;
	gConfgBuf.Code39_32 = cfg->Code39_32;
	gConfgBuf.Code39_32_Full_ASCII = cfg->Code39_32_Full_ASCII;
	gConfgBuf.Code39MinLen = cfg->Code39MinLen;
	gConfgBuf.Code39MaxLen = cfg->Code39MaxLen;
	gConfgBuf.Code93_ID = cfg->Code93_ID;
	gConfgBuf.Code93 = cfg->Code93;
	gConfgBuf.Code93MinLen = cfg->Code93MinLen;
	gConfgBuf.Code93MaxLen = cfg->Code93MaxLen;
	gConfgBuf.CodeBar_ID = cfg->CodeBar_ID;
	gConfgBuf.CodeBar = cfg->CodeBar;
	gConfgBuf.CodeBarMinLen = cfg->CodeBarMinLen;
	gConfgBuf.CodeBarMaxLen = cfg->CodeBarMaxLen;
	gConfgBuf.QR_ID = cfg->QR_ID;
	gConfgBuf.QR = cfg->QR;
	gConfgBuf.Interleaved25_ID = cfg->Interleaved25_ID;
	gConfgBuf.Interleaved25 = cfg->Interleaved25;
	gConfgBuf.Interleaved25MinLen = cfg->Interleaved25MinLen;
	gConfgBuf.Interleaved25MaxLen = cfg->Interleaved25MaxLen;
	gConfgBuf.Industrail25_ID = cfg->Industrail25_ID;
	gConfgBuf.Industrial_25 = cfg->Industrial_25;
	gConfgBuf.Industrial_25MinLen = cfg->Industrial_25MinLen;
	gConfgBuf.Industrial_25MaxLen = cfg->Industrial_25MaxLen;
	gConfgBuf.Matrix25_ID = cfg->Matrix25_ID;
	gConfgBuf.Matrix25 = cfg->Matrix25;
	gConfgBuf.Matrix25MinLen = cfg->Matrix25MinLen;
	gConfgBuf.Matrix25MaxLen = cfg->Matrix25MaxLen;
	gConfgBuf.IATA25_ID = cfg->IATA25_ID;
	gConfgBuf.IATA25 = cfg->IATA25;
	gConfgBuf.IATA25MinLen = cfg->IATA25MinLen;
	gConfgBuf.IATA25MaxLen = cfg->IATA25MaxLen;
	gConfgBuf.PDF417 = cfg->PDF417;
	gConfgBuf.DM = cfg->DM;
	gConfgBuf.inputCodeType = cfg->inputCodeType;
	gConfgBuf.outputCodeType = cfg->outputCodeType;
	gConfgBuf.billModeStatus = cfg->billModeStatus;
	gConfgBuf.endCode = cfg->endCode;
	gConfgBuf.prefixLen = cfg->prefixLen;
	gConfgBuf.suffixLen = cfg->suffixLen;
	for(int i=0;i<16;i++)gConfgBuf.prefix[i] = cfg->prefix[i];
	for(int i=0;i<16;i++)gConfgBuf.suffix[i] = cfg->suffix[i];
	gConfgBuf.uartOutputProtocal = cfg->uartOutputProtocal;
	gConfgBuf.ECIMode = cfg->ECIMode;
	gConfgBuf.sensitivity = cfg->sensitivity;
	gConfgBuf.stableTime = cfg->stableTime;
	gConfgBuf.statusKeyVoice = cfg->statusKeyVoice;
	gConfgBuf.voiceGain = cfg->voiceGain;
	gConfgBuf.statusKey = cfg->statusKey;
	
}

/**
 * @function    RestoreCfg
 * @brief       将AB备份页都恢复为默认配置
 * @param[in]   无
 * @return      返回正确或错误
 */
uint8_t RestoreCfg(void)
{
	//AB页都恢复为默认配置
	uint8_t status;
	gCurrentSysCfg = (CfgSetting *)&DefaultCfg;
	//把默认配置页内容拷贝到缓存中
	CopyCfg((CfgSetting *)&DefaultCfg);
	gConfgBuf.CRCData = CRCGenerate((uint8_t *)&gConfgBuf + 2, sizeof(CfgSetting) - 2);
	//对A页擦
	status = FLASH_NormalErase((uint8_t *)A_CFGBUF_ADDR);

	if(status != TMC_OK)
	{
		return TMC_ERROR;
	}

	//对A页写
	status = FLASH_WriteDoubleWords((uint32_t)A_CFGBUF_ADDR, (uint32_t)&gConfgBuf, sizeof(CfgSetting));

	if(status != TMC_OK)
	{
		return TMC_ERROR;
	}

	//对B页擦
	status = FLASH_NormalErase((uint8_t *)B_CFGBUF_ADDR);

	if(status != TMC_OK)
	{
		return TMC_ERROR;
	}

	//改SN，对B页写
	gConfgBuf.SN = DefaultCfg.SN + 1;
	gConfgBuf.CRCData = CRCGenerate((uint8_t *)&gConfgBuf + 2, sizeof(CfgSetting) - 2);
	status = FLASH_WriteDoubleWords(B_CFGBUF_ADDR, ((uint32_t)&gConfgBuf), sizeof(CfgSetting));

	if(status != TMC_OK)
	{
		return TMC_ERROR;
	}

	//标记最新页
	gCurrentSysCfg = (CfgSetting *)B_CFGBUF_ADDR;
	return TMC_OK;
}

/**
 * @function    UpdateCfg
 * @brief       更新配置区
 * @param[in]   无
 * @return      返回正确或错误
 */
uint8_t UpdateCfg(void)
{
	uint32_t pre_cfg;
	uint8_t status;

  gFunTrace = 39;
	
	//确定旧页的地址
	if((uint32_t) gCurrentSysCfg == A_CFGBUF_ADDR)
	{
		pre_cfg = B_CFGBUF_ADDR;
	}
	else
	{
		pre_cfg = A_CFGBUF_ADDR;
	}

	gConfgBuf.SN = gConfgBuf.SN + 1;
	gConfgBuf.CRCData = CRCGenerate((uint8_t *)&gConfgBuf + 2, sizeof(CfgSetting) - 2);
	//对旧页页擦、页写
  gFunTrace = 40;
	status = FLASH_NormalErase((uint8_t *)pre_cfg);
  gFunTrace = 41;

	if(status != TMC_OK)
	{
		return TMC_ERROR;
	}

  gFunTrace = 42;
	status = FLASH_WriteDoubleWords(pre_cfg, ((uint32_t)&gConfgBuf), sizeof(CfgSetting));
  gFunTrace = 43;

	if(status != TMC_OK)
	{
		return TMC_ERROR;
	}

	//标记最新页
	gCurrentSysCfg = (CfgSetting *)pre_cfg;

	return TMC_OK;
}