csu3_am335x/EVSE/Modularization/Module_Upgrade.c

/*
 * Module_RFID.c
 *
 *  Created on: 2019-12-24
 *      Author: Jerry Wang
 *     Version: D0.01
 */
#include 	"main.h"
#include	"Module_Upgrade.h"

//==================================
// PRINT OUT LOG FORMAT
//==================================

#define ARRAY_SIZE(A)		(sizeof(A) / sizeof(A[0]))
#define PASS				1
#define FAIL				-1

struct SysConfigAndInfo			*ShmSysConfigAndInfo;
struct StatusCodeData 			*ShmStatusCodeData;
struct FanModuleData			*ShmFanModuleData;

int DiffTimebByUpgrade(struct timeb ST, struct timeb ET)
{
	//return milli-second
	unsigned int StartTime,StopTime;

	StartTime=(unsigned int)ST.time;
	StopTime=(unsigned int)ET.time;
	return (StopTime-StartTime)*1000+ET.millitm-ST.millitm;
}

unsigned char *memcat(unsigned char *dest, unsigned int dest_len, unsigned char *src, unsigned int src_len)
{
	memcpy(dest+dest_len, src, src_len);
	return dest;
}

uint32_t crc32(uint8_t *data, unsigned int length)
{
    uint8_t i;
    uint32_t cnt = 0;
    uint32_t crc = 0xffffffff;  // Initial value
    while(length--)
    {
    	if(cnt>33 && cnt<48) {
    		data++;
    	}else {
    		crc ^= *data++;         // crc ^= *data; data++;
			for (i = 0; i < 8; ++i)
			{
				if (crc & 1)
					crc = (crc >> 1) ^ 0xEDB88320;// 0xEDB88320= reverse 0x04C11DB7
				else
					crc = (crc >> 1);
			}
    	}
    	cnt++;
    }
    return ~crc;
}

int Upgrade_Flash(unsigned int Type,char *SourcePath,char *ModelName)
{
	int result = FAIL;

	long int MaxLen=48*1024*1024, ImageLen=0;
	unsigned int ImageCRC=0, DataLength=0;
	int wrd,fd;

	// space max size set

	switch(Type)
	{
		case CSU_BOOTLOADER:
			MaxLen = 1*1024*1024;
			DEBUG_INFO("Image type: U-Boot\r\n");
			break;
		case CSU_KERNEL_CONFIGURATION:
			MaxLen = 0.5*1024*1024;
			DEBUG_INFO("Image type: DTB\r\n");
			break;
		case CSU_KERNEL_IMAGE:
			MaxLen = 10*1024*1024;
			DEBUG_INFO("Image type: Kernel\r\n");
			break;
		case CSU_ROOT_FILE_SYSTEM:
			MaxLen = 48*1024*1024;
			DEBUG_INFO("Image type: Root fs\r\n");
			break;
		case CSU_USER_CONFIGURATION:
			MaxLen = 6*1024*1024;
			DEBUG_INFO("Image type: Config\r\n");
			break;
		default:
			break;
	}

	fd = open(SourcePath, O_RDONLY);
	if(fd < 0)
	{
		DEBUG_ERROR("UpdateRootfs NG - can not open rootfs\n");
		return result;
	}

	unsigned char *ptr = malloc(MaxLen); //-48 is take out the header
	memset(ptr,0xFF,MaxLen);  //-48 is take out the header

	//get the image length
	ImageLen = read(fd,ptr,MaxLen);
	close(fd);
	//read out the header
	int i;
	int isModelNameOK = PASS;
	for(i=0;i<16;i++)
	{
		if(ModelName[i] != ptr[i])
		{
			isModelNameOK = FAIL;
		}
	}

	if(isModelNameOK == FAIL)
	{
		DEBUG_ERROR("Model name mismatch.\r\n");
	}
	else
	{
		// check if the firmware type is correct
		if(Type == (((unsigned int)ptr[16])<<24 | ((unsigned int)ptr[17])<<16 | ((unsigned int)ptr[18])<<8 | ((unsigned int)ptr[19])))
		{
			if((ImageLen-48) == (((unsigned int)ptr[20])<<24 | ((unsigned int)ptr[21])<<16 | ((unsigned int)ptr[22])<<8 | ((unsigned int)ptr[23])))
			{
				DataLength = ImageLen-48;

				// get CRC in the header
				ImageCRC = ((unsigned int)ptr[34])<<24 | ((unsigned int)ptr[35])<<16 | ((unsigned int)ptr[36])<<8 | ((unsigned int)ptr[37]);

				// calculate the image CRC
				DEBUG_INFO("CRC32 in image: 0x%08X\r\n",ImageCRC);
				DEBUG_INFO("CRC32 by calculation: 0x%08X\r\n",crc32(ptr,ImageLen));
				if(crc32(ptr,ImageLen/*34+DataLength*/) == ImageCRC)
				{
					// Write image to target flash block
					switch(Type)
					{
						case FLASH_IMAGE_TYPE_SPL:
							fd = open("/dev/mtdblock0", O_RDWR);
							if (fd < 0)
							{
								DEBUG_ERROR("Can not open mtdblock0\r\n");
								result = FAIL;
							}
							else
							{
								// Write image to flash
								DEBUG_INFO("Writing image to mtdblock0...\n");
								wrd=write(fd, ptr, DataLength);
								close(fd);
								DEBUG_INFO(">> mtdblock0 Written length: 0x%x\r\n", wrd);
								if(wrd != DataLength)
								{
									result = FAIL;
								}
								else
								{
									result = PASS;
								}
							}
							break;
						case CSU_BOOTLOADER:
							fd = open("/dev/mtdblock1", O_RDWR);
							if (fd < 0)
							{
								DEBUG_ERROR("Can not open mtdblock1\r\n");
								result = FAIL;
							}
							else
							{
								// Write image to flash
								DEBUG_INFO("Writing image to mtdblock1...\n");
								wrd=write(fd, ptr+48, DataLength);
								close(fd);
								DEBUG_INFO(">> mtdblock1 written length: 0x%x\r\n", wrd);
								if(wrd != DataLength)
								{
									result = FAIL;
								}
								else
								{
									// Open flash target mtdblock
									fd = open("/dev/mtdblock3", O_RDWR);
									if (fd < 0)
									{
										DEBUG_ERROR("Can not open mtdblock3\r\n");
										result = FAIL;
									}
									else
									{
										// Write image to flash
										DEBUG_INFO("Writing image to mtdblock3...\n");
										wrd=write(fd, ptr, DataLength);
										close(fd);
										DEBUG_INFO(">> mtdblock3 written length: 0x%x\r\n", wrd);
										if(wrd != DataLength)
										{
											result = FAIL;
										}
										else
										{
											result = PASS;
										}
									}
								}
							}
							break;
						case CSU_KERNEL_CONFIGURATION:
							fd = open("/dev/mtdblock4", O_RDWR);
							if (fd < 0)
							{
								DEBUG_ERROR("Can not open mtdblock4\r\n");
								result = FAIL;
							}
							else
							{
								// Write image to flash
								DEBUG_INFO("Writing image to mtdblock4...\n");
								wrd=write(fd, ptr+48, DataLength);
								close(fd);
								DEBUG_INFO(">> mtdblock4 written length: 0x%x\r\n", wrd);
								if(wrd != DataLength)
								{
									result = FAIL;
								}
								else
								{
									// Open flash target mtdblock
									fd = open("/dev/mtdblock5", O_RDWR);
									if (fd < 0)
									{
										DEBUG_ERROR("Can not open mtdblock5\r\n");
										result = FAIL;
									}
									else
									{
										// Write image to flash
										DEBUG_INFO("Writing image to mtdblock5...\n");
										wrd=write(fd, ptr+48, DataLength);
										close(fd);
										DEBUG_INFO(">> mtdblock5 written length: 0x%x\r\n", wrd);
										if(wrd != DataLength)
										{
											result = FAIL;
										}
										else
										{
											result = PASS;
										}
									}
								}
							}
							break;
						case CSU_KERNEL_IMAGE:
							fd = open("/dev/mtdblock6", O_RDWR);
							if (fd < 0)
							{
								DEBUG_ERROR("Can not open mtdblock6\r\n");
								result = FAIL;
							}
							else
							{
								// Write image to flash
								DEBUG_INFO("Writing image to mtdblock6...\n");
								wrd=write(fd, ptr+48, DataLength);
								close(fd);
								DEBUG_INFO(">> mtdblock6 written length: 0x%x\r\n", wrd);
								if(wrd != DataLength)
								{
									result = FAIL;
								}
								else
								{
									// Open flash target mtdblock
									fd = open("/dev/mtdblock7", O_RDWR);
									if (fd < 0)
									{
										DEBUG_ERROR("Can not open mtdblock7\r\n");
										result = FAIL;
									}
									else
									{
										// Write image to flash
										DEBUG_INFO("Writing image to mtdblock7...\n");
										wrd=write(fd, ptr+48, DataLength);
										close(fd);
										DEBUG_INFO(">> mtdblock7 written length: 0x%x\r\n", wrd);
										if(wrd != DataLength)
										{
											result = FAIL;
										}
										else
										{
											result = PASS;
										}
									}
								}
							}
							break;
						case CSU_ROOT_FILE_SYSTEM:
							fd = open("/dev/mtdblock8", O_RDWR);
							if(fd < 0)
							{
								DEBUG_ERROR("UpdateRootfs NG - can not open rootfs\n");
								result = FAIL;
							}
							else
							{
								DEBUG_INFO("Writing image to mtdblock8...\n");
								wrd=write(fd, ptr+48, DataLength);
								close(fd);
								DEBUG_INFO(">> mtdblock8 written length: 0x%x\r\n", wrd);
								if(wrd!=DataLength)
								{
									result = FAIL;
								}
								else
								{
									fd = open("/dev/mtdblock9", O_RDWR);
									if(fd < 0)
									{
										DEBUG_ERROR("UpdateRootfs NG - can not open rootfs\n");
										result = FAIL;
									}

									DEBUG_INFO("Writing image to mtdblock9...\n");
									wrd=write(fd, ptr+48, DataLength);
									close(fd);
									DEBUG_INFO(">> mtdblock9 written length: 0x%x\r\n", wrd);
									if(wrd!=DataLength)
									{
										result = FAIL;
									}
									else
									{
										result = PASS;
									}
								}
							}
							break;
						case CSU_USER_CONFIGURATION:
							// Open flash target mtdblock
							fd = open("/dev/mtdblock10", O_RDWR);
							if (fd < 0)
							{
								DEBUG_ERROR("Can not open mtdblock10\r\n");
								result = FAIL;
							}
							else
							{
								// Write image to flash
								DEBUG_INFO("Writing image to mtdblock10...\n");
								wrd=write(fd, ptr+48, DataLength);
								close(fd);
								DEBUG_INFO(">> mtdblock10 written length: 0x%x\r\n", wrd);
								if(wrd != DataLength)
								{
									result = FAIL;
								}
								else
								{
									// Open flash target mtdblock
									fd = open("/dev/mtdblock11", O_RDWR);
									if (fd < 0)
									{
										DEBUG_ERROR("Can not open mtdblock11\r\n");
										result = FAIL;
									}
									else
									{
										// Write image to flash
										DEBUG_INFO("Writing image to mtdblock11...\n");
										wrd=write(fd, ptr+48, DataLength);
										close(fd);
										DEBUG_INFO(">> mtdblock11 written length: 0x%x\r\n", wrd);
										if(wrd != DataLength)
										{
											result = FAIL;
										}
										else
										{
											result = PASS;
										}
									}
								}
							}
							break;
						default:
							break;
					}
				}
				else
					DEBUG_ERROR("Firmware image CRC32 mismatch.\r\n");
			}
			else
				DEBUG_ERROR("Firmware image length mismatch.\r\n");
		}
		else
			DEBUG_ERROR("Firmware image type mismatch.\r\n");
	}
	free(ptr);

	if(result == PASS)
		DEBUG_INFO("Update image success\r\n");
	else
		DEBUG_ERROR("Update image fail\r\n");

	return result;
}

//================================================
// UART update function
//================================================
int uart_tranceive(int fd, unsigned char* cmd, unsigned char* rx, int len, unsigned char needErase)
{
	tcflush(fd,TCIOFLUSH);
	if(write(fd, cmd, len) >= len)
	{
		len = 0;
		if (needErase == 0x01)
			sleep(5);
		else
			usleep(500000);
		len = read(fd, rx, 512);
	}
	else
	{
		DEBUG_ERROR("Serial command %s response fail.\n", cmd);
	}

	return len;
}

unsigned char uart_update_start(unsigned char fd, unsigned char targetAddr, unsigned int crc32)
{
	unsigned char result = FAIL;
	unsigned char tx[11] = {0xaa, 0x00, targetAddr, UART_CMD_UPDATE_START, 0x04, 0x00, (crc32>>0)&0xff, (crc32>>8)&0xff, (crc32>>16)&0xff, (crc32>>24)&0xff, 0x00};
	unsigned char rx[512];
	unsigned char chksum = 0x00;

	for(int idx=0;idx<(tx[4] | tx[5]<<8);idx++)
		chksum ^= tx[6+idx];
	tx[10] = chksum;

	if(uart_tranceive(fd, tx, rx, 11, 0x01) >0)
	{
		chksum = 0x00;
		for(int idx=0;idx<(rx[4] | rx[5]<<8);idx++)
		{
			chksum ^= rx[6+idx];
		}

		if((chksum == rx[6+(rx[4] | rx[5]<<8)]) &&
		   (rx[2] == tx[1]) &&
		   (rx[1] == tx[2]) &&
		   (rx[3] == tx[3]) &&
		   (rx[6] == 0x01))
		{
			result = PASS;
			DEBUG_INFO("UART target is ready for upgrade.\n");
		}
		else
		{
			DEBUG_INFO("UART target is not ready...\n");
		}
	}
	else
	{
		DEBUG_ERROR("UART receiving update start ack failed...\n");
	}

	return result;
}

unsigned char uart_update_abord(unsigned char fd, unsigned char targetAddr)
{
	unsigned char result = FAIL;
	unsigned char tx[7] = {0xaa, 0x00, targetAddr, UART_CMD_UPDATE_ABORD, 0x04, 0x00, 0x00};
	unsigned char rx[512];
	unsigned char chksum = 0x00;


	if(uart_tranceive(fd, tx, rx, 7, 0x00) >0)
	{
		for(int idx=0;idx<(rx[4] | rx[5]<<8);idx++)
		{
			chksum ^= rx[6+idx];
		}

		if((chksum == rx[6+(rx[4] | rx[5]<<8)]) &&
		   (rx[2] == tx[1]) &&
		   (rx[1] == tx[2]) &&
		   (rx[3] == tx[3]) &&
		   (rx[6] == 0x01))
		{
			result = PASS;
			DEBUG_INFO("UART target abord update OK.\n");
		}
		else
		{
			DEBUG_ERROR("UART target abord update failed.\n");
		}
	}
	else
	{
		DEBUG_ERROR("UART receiving update abord ack failed...\n");
	}

	return result;
}

unsigned char uart_update_transfer(unsigned char fd, unsigned char targetAddr, unsigned int startAddr, unsigned char *data, unsigned short int length)
{
	unsigned char result = FAIL;
	unsigned char tx[11 + length];
	unsigned char rx[512];
	unsigned char chksum = 0x00;

	tx[0] = 0xaa;
	tx[1] = 0x00;
	tx[2] = targetAddr;
	tx[3] = UART_CMD_UPDATE_TRANSFER;
	tx[4] = (4 + length) & 0xff;
	tx[5] = ((4 + length)>>8) & 0xff;
	tx[6] = (startAddr>>0) & 0xff;
	tx[7] = (startAddr>>8) & 0xff;
	tx[8] = (startAddr>>16) & 0xff;
	tx[9] = (startAddr>>24) & 0xff;
	memcpy(tx+10, data, length);

	for(int idx=0;idx<(tx[4] | tx[5]<<8);idx++)
		chksum ^= tx[6+idx];
	tx[sizeof(tx)-1] = chksum;

	if(uart_tranceive(fd, tx, rx, 11 + length,0x00) >0)
	{
		chksum = 0;
		for(int idx=0;idx<(rx[4] | rx[5]<<8);idx++)
		{
			chksum ^= rx[6+idx];
		}

		if((chksum == rx[6+(rx[4] | rx[5]<<8)]) &&
		   (rx[2] == tx[1]) &&
		   (rx[1] == tx[2]) &&
		   (rx[3] == tx[3]) &&
		   (rx[6] == 0x01))
		{
			result = PASS;
		}
	}
	else
	{
		DEBUG_ERROR("UART receiving update transfer ack failed...\n");
	}

	return result;
}

unsigned char uart_update_finish(unsigned char fd, unsigned char targetAddr)
{
	unsigned char result = FAIL;
	unsigned char tx[7] = {0xaa, 0x00, targetAddr, UART_CMD_UPDATE_FINISH, 0x04, 0x00, 0x00};
	unsigned char rx[512];
	unsigned char chksum = 0x00;


	if(uart_tranceive(fd, tx, rx, 7,0x00) >0)
	{
		for(int idx=0;idx<(rx[4] | rx[5]<<8);idx++)
		{
			chksum ^= rx[6+idx];
		}

		if((chksum == rx[6+(rx[4] | rx[5]<<8)]) &&
		   (rx[2] == tx[1]) &&
		   (rx[1] == tx[2]) &&
		   (rx[3] == tx[3]) &&
		   (rx[6] == 0x01))
		{
			result = PASS;
			DEBUG_INFO("UART update finish check OK...\n");
		}
		else
		{
			DEBUG_ERROR("UART update finish check failed...\n");
		}
	}
	else
	{
		DEBUG_ERROR("UART receiving update finish ack failed...\n");
	}

	return result;
}

int Upgrade_UART(unsigned char uartfd,unsigned int Type,unsigned char TargetAddr,char *SourcePath,char *ModelName)
{
	int result = FAIL;

	long int MaxLen=48*1024*1024, ImageLen=0;
	unsigned int ImageCRC=0, DataLength=0;
    int fd;

	fd = open(SourcePath, O_RDONLY);
	if(fd < 0)
	{
		DEBUG_ERROR("UpdateRootfs NG - can not open rootfs\n");
		return result;
	}

	unsigned char *ptr = malloc(MaxLen); //-48 is take out the header
	memset(ptr,0xFF,MaxLen);  //-48 is take out the header

	//get the image length
	ImageLen = read(fd,ptr,MaxLen);
	close(fd);
	//read out the header
	int i;
	int isModelNameOK = PASS;
	for(i=0;i<16;i++)
	{
		if(ModelName[i] != ptr[i])
		{
			isModelNameOK = FAIL;
		}
	}

	if(isModelNameOK == FAIL)
	{
		DEBUG_ERROR("Model name mismatch...\n");
	}
	else
	{
		// check if the firmware type is correct
		if(Type == (((unsigned int)ptr[16])<<24 | ((unsigned int)ptr[17])<<16 | ((unsigned int)ptr[18])<<8 | ((unsigned int)ptr[19])))
		{
			if((ImageLen-48) == (((unsigned int)ptr[20])<<24 | ((unsigned int)ptr[21])<<16 | ((unsigned int)ptr[22])<<8 | ((unsigned int)ptr[23])))
			{
				DataLength = ImageLen-48;

				// get CRC in the header
				ImageCRC = ((unsigned int)ptr[34])<<24 | ((unsigned int)ptr[35])<<16 | ((unsigned int)ptr[36])<<8 | ((unsigned int)ptr[37]);

				// calculate the image CRC
				DEBUG_INFO("CRC32 in image: 0x%08X\r\n",ImageCRC);
				DEBUG_INFO("CRC32 by calculation: 0x%08X\r\n",crc32(ptr,ImageLen));
				if(crc32(ptr,ImageLen/*34+DataLength*/) == ImageCRC)
				{
					if(uart_update_start(uartfd, TargetAddr, crc32(ptr+48,DataLength))==PASS)
					{
						int CNT_Fail = 0;
						int CNT_Trans = 0;
						do
						{
							if(uart_update_transfer(uartfd, TargetAddr, CNT_Trans*1024, ptr+48+(CNT_Trans*1024), 1024)==PASS)
							{
								CNT_Fail = 0;
								CNT_Trans++;
								DEBUG_INFO("Upgrade progress:%.2f%%\r\n", ((float)(CNT_Trans*1024))/(DataLength)*100);
							}
							else
							{
								DEBUG_WARN("Data transfer fail, retry %d \r\n", ++CNT_Fail);
							}
						}while(DataLength-(CNT_Trans*1024)>0 && CNT_Fail<3);

						if(CNT_Fail>=3)
						{
							uart_update_abord(uartfd, TargetAddr);
							DEBUG_ERROR("UART upgrade retry > limits, aboard upgrade.\r\n");
						}
						else if(uart_update_finish(uartfd, TargetAddr)==PASS)
						{
							result = PASS;
						}
					}
					else
						DEBUG_ERROR("UART upgrade request failed.\n");
				}
				else
					DEBUG_ERROR("Firmware image CRC32 mismatch.\r\n");
			}
			else
				DEBUG_ERROR("Firmware image length mismatch.\r\n");
		}
		else
			DEBUG_ERROR("Firmware image type mismatch.\r\n");
	}
	free(ptr);
	return result;
}

//================================================
// CANBUS update function
//================================================
unsigned long GetTimeoutValue(struct timeval _sour_time)
{
	struct timeval _end_time;
	gettimeofday(&_end_time, NULL);

	return 1000000 * (_end_time.tv_sec - _sour_time.tv_sec) + _end_time.tv_usec - _sour_time.tv_usec;
}

int CAN_Download_REQ(int canfd,unsigned int Slave_Addr, unsigned int imageSize)
{
	struct can_frame frame;
	frame.can_id = (0x00000E00 + Slave_Addr) | 0x80000000;		//extended frame : �� 31 ��n�� 1
	frame.can_dlc = 0x07;

	frame.data[0] = 0x04;  //0x01:Configuration file, 0x02:Bootloader of primary side MCU, 0x03:Firmware (main code) of primary side MCU, 0x04:Bootloader of secondary side MCU, 0x05:Firmware (main code) of secondary side MCU
	frame.data[1] = (imageSize>>0)&0xff;  //Total 384 KBytes
	frame.data[2] = (imageSize>>8)&0xff;  //Total 384 KBytes
	frame.data[3] = (imageSize>>16)&0xff;  //Total 384 KBytes
	frame.data[4] = (imageSize>>24)&0xff;  //Total 384 KBytes
	frame.data[5] = 0x10;  //16 blocks
	frame.data[6] = 0x18;  //24 KBytes

	DEBUG_INFO(	"File size = %x, %d \n", imageSize, imageSize);
	write(canfd, &frame, sizeof(struct can_frame));
	if (canfd > 0)
	{
		struct timeval timer;
		gettimeofday(&timer, NULL);
		while (GetTimeoutValue(timer) < 5000000)
		{
			struct can_frame frame;
			int len;
			len = read(canfd, &frame, sizeof(struct can_frame));
			if (len >= 0)
			{
				DEBUG_INFO(	"*****************************CAN_Download_REQ Get***************************** \n");
				DEBUG_INFO("data = %x \n", frame.can_id & CAN_EFF_MASK);
				if (((int)(frame.can_id & CAN_EFF_MASK & 0xFFFFFF00) ==  0x08000E00) && frame.data[0] == 1)
				{
					DEBUG_INFO("PASS \n");
					return PASS;
				}
			}
		}
	}
	return FAIL;
}

int CAN_Start_BLK_Trans(int canfd,unsigned int Slave_Addr,unsigned int Block_No,unsigned int Block_Checksum)
{
	struct can_frame frame;
	frame.can_id = (0x00000F00 + Slave_Addr) | 0x80000000;		//extended frame : �� 31 ��n�� 1
	frame.can_dlc = 0x02;

	frame.data[0] = Block_No;
	frame.data[1] = Block_Checksum;

	DEBUG_INFO("Block_No = %x, Block_Checksum = %x \n", Block_No, Block_Checksum);
	write(canfd, &frame, sizeof(struct can_frame));
	usleep(100000);

	if (canfd > 0)
	{
		struct timeval timer;
		gettimeofday(&timer, NULL);
		while (GetTimeoutValue(timer) < 1000000)
		{
			struct can_frame frame;
			int len;
			len = read(canfd, &frame, sizeof(struct can_frame));
			if(len >= 0)
			{
				DEBUG_INFO("*****************************CAN_Start_BLK_Trans Get***************************** \n");
				DEBUG_INFO("data = %x \n", frame.can_id & CAN_EFF_MASK); // extended frame ����T�ݭn���z�L CAN_EFF_MASK �~�|����u������T
				if(((int)(frame.can_id & CAN_EFF_MASK & 0xFFFFFF00) ==  0x08000F00) &&frame.data[0] == 1)
				{
					DEBUG_INFO("CAN_Start_BLK_Trans PASS \n");
					return PASS;
				}
			}
		}

	}
	return FAIL;
}

void CAN_Data_Trans(int canfd,unsigned int Slave_Addr,long Data_num,unsigned char Data[])
{
	struct can_frame frame;
	frame.can_id = (0x00001000 + Slave_Addr) | 0x80000000;		//extended frame : �� 31 ��n�� 1
	frame.can_dlc = 0x08;

	frame.data[0] = Data[Data_num+0];
	frame.data[1] = Data[Data_num+1];
	frame.data[2] = Data[Data_num+2];
	frame.data[3] = Data[Data_num+3];
	frame.data[4] = Data[Data_num+4];
	frame.data[5] = Data[Data_num+5];
	frame.data[6] = Data[Data_num+6];
	frame.data[7] = Data[Data_num+7];

//	DEBUG_INFO("%02x %02x %02x %02x %02x %02x %02x %02x \n", frame.data[0], frame.data[1], frame.data[2], frame.data[3],
//			frame.data[4], frame.data[5], frame.data[6], frame.data[7]);
	write(canfd, &frame, sizeof(struct can_frame));
	usleep(2000);
}

int CAN_Download_FIN(int canfd,unsigned int Slave_Addr)
{
	struct can_frame frame;
	frame.can_id = (0x00001100 + Slave_Addr) | 0x80000000;		//extended frame
	frame.can_dlc = 0x00;

	write(canfd, &frame, sizeof(struct can_frame));
	usleep(10000);
	if (canfd > 0)
	{
		struct timeval timer;
		gettimeofday(&timer, NULL);
		while (GetTimeoutValue(timer) < 1000000)
		{
			struct can_frame frame;
			int len;
			len = read(canfd, &frame, sizeof(struct can_frame));
			if(len >= 0)
			{
				DEBUG_INFO("data = %x \n", frame.can_id & CAN_EFF_MASK); // extended frame
				if(((int)(frame.can_id & CAN_EFF_MASK & 0xFFFFFF00) ==  0x08001100) && frame.data[0] == 1)
				{
					DEBUG_INFO("CAN_Download_FIN PASS \n");
					return PASS;
				}
			}
		}
	}
	return FAIL;
}

int Checksum_Cal(unsigned int StartAdress,unsigned int length, unsigned char Data[])
{
	unsigned char checksum = 0x00;

	for(unsigned int i = 0; i < length; i++)
	{
		//DEBUG_INFO("value = %x \n", Data[StartAdress + i]);
		checksum ^= Data[StartAdress + i];
		//DEBUG_INFO("checksum = %x \n", checksum);
	}

	return checksum;
}

int Upgrade_CAN(int canfd,unsigned int Type,unsigned char TargetAddr,char *SourcePath,char *ModelName)
{
	int result = FAIL;

	long int MaxLen=48*1024*1024, ImageLen=0;
	unsigned int ImageCRC=0, DataLength=0;
	int fd;

	fd = open(SourcePath, O_RDONLY);
	if(fd < 0)
	{
		DEBUG_ERROR("UpdateRootfs NG - can not open rootfs\n");
		return result;
	}

	unsigned char *ptr = malloc(MaxLen); //-48 is take out the header
	memset(ptr,0xFF,MaxLen);  //-48 is take out the header

	//get the image length
	ImageLen = read(fd,ptr,MaxLen);
	close(fd);
	//read out the header
	int i;
	int isModelNameOK = PASS;
	for(i=0;i<16;i++) {
		if(ModelName[i] != ptr[i]){
			isModelNameOK = FAIL;
		}
	}

	if(isModelNameOK == FAIL)
	{
		DEBUG_ERROR("The model name is wrong...\n");
		return result;
	}
	else
	{
		// check if the firmware type is correct
		if(Type == (((unsigned int)ptr[16])<<24 | ((unsigned int)ptr[17])<<16 | ((unsigned int)ptr[18])<<8 | ((unsigned int)ptr[19])))
		{
			if((ImageLen-48) == (((unsigned int)ptr[20])<<24 | ((unsigned int)ptr[21])<<16 | ((unsigned int)ptr[22])<<8 | ((unsigned int)ptr[23])))
			{
				DataLength = ImageLen-48;

				// get CRC in the header
				ImageCRC = ((unsigned int)ptr[34])<<24 | ((unsigned int)ptr[35])<<16 | ((unsigned int)ptr[36])<<8 | ((unsigned int)ptr[37]);

				// calculate the image CRC
				DEBUG_INFO("CRC32 in image: 0x%08X\r\n",ImageCRC);
				DEBUG_INFO("CRC32 by calculation: 0x%08X\r\n",crc32(ptr,ImageLen));
				if(crc32(ptr,ImageLen/*34+DataLength*/) == ImageCRC)
				{
					unsigned int Checksum[16];

					for(int i=0;i<16;i++)
					{
						Checksum[i] = Checksum_Cal(i * 24576, 24576, ptr + 48);
					}

					if(CAN_Download_REQ(canfd, TargetAddr, DataLength) == PASS)
					{
						for(int block = 1; block <= 16; block++)
						{
							if(CAN_Start_BLK_Trans(canfd, TargetAddr, block, Checksum[block - 1]) == PASS)
							{
								for(int times = 0; times < 3072; times++)
								{
									CAN_Data_Trans(canfd, TargetAddr, ((block - 1) * 24576 + times * 8), ptr + 48);
								}
								DEBUG_INFO(" \r\n\r\n");
							}
							else
							{
								free(ptr);
								return result;
							}
						}

						if (CAN_Download_FIN(canfd, TargetAddr) == PASS)
							result = PASS;
					}
					else
						DEBUG_ERROR("CANBUS upgrade request failed.\n");
				}
				else
					DEBUG_ERROR("Firmware image CRC32 mismatch.\r\n");
			}
			else
				DEBUG_ERROR("Firmware image length mismatch.\r\n");
		}
		else
			DEBUG_ERROR("Firmware image type mismatch.\r\n");

	}
	free(ptr);
	return result;
}