download.c

进行arm－linux嵌入式系统开发时

  长度4		返回 o
f	f
  发送数据	arm接受数据 o

r	data

w	w
		开始写flash 每写1K发送一个 .
		写完所有的数据 发送 k
		通信结束
*/

int
transfer(int fd, int rate, char *addr, char *filename) {
	char buf;	// save the client's reply, 1 byte
	int tmp;	// save the information for send, 4 bytes
	FILE *fp;	// the file's handle we send
	int track = 0;	// for show the finished rate
	int oldtrack = 0;
	int filelen = 0;	// the file's length we send
	int step = 0;	// the scale about the track
	char str[1024];	// the buffer for store data
	int finished = 0;	// the rate of the finished
	int i;
	if(!set_speed(fd, 9600)) {
		printf("Unsupported Baud Rate.\n");
		exit(0);
	}
	if (set_Parity(fd,8,1,'N')== FALSE) {
		printf("Set Parity Error\n");
		exit(0);
	}
	setvbuf(stdout, (char *)NULL, _IONBF, 0);
	printf("Waiting Armboard Wakeup...");
	buf = '\0';
	/* be sure armboard is ready */
	while(buf != '<') {
		while(read(fd,&buf,1)==0);
	}
	printf("OK.\n");
	/* send client program (2k) */
	printf("Sending Client...");
	send_client(fd);
	buf = '\0';
	while(buf != '>') {
		while(read(fd,&buf,1)==0);
	}
	printf("OK.\n");
	printf("Check Client...");
	/* be sure client is ready */
	buf = 'a';
	write(fd, &buf, 1);
	buf = '\0';
	while(buf != 'a') {
		while(read(fd,&buf,1)==0);
	}
	printf("OK.\n");
	printf("Setting Baud Rate...");
	/* set baud rate */
	buf = 's';
	write(fd, &buf, 1);
	buf = '\0';
	while(buf != 's') {
		while(read(fd,&buf,1)==0);
	}
	switch (rate) {
		case 115200:
			tmp = BR_115200;
			break;
		case 57600:
			tmp = BR_57600;
			break;
		case 38400:
			tmp = BR_38400;
			break;
		case 19200:
			tmp = BR_19200;
			break;
		case 9600:
			tmp = BR_9600;
			break;
		case 2400:
			tmp = BR_2400;
			break;
		case 1200:
			tmp = BR_1200;
			break;
		default:
			printf("Unsupported Baud Rate.\n");
			setlinebuf(stdout);
			exit(0);
	}
	write(fd, &tmp, 4);
	read(fd,str,4);
	if(!set_speed(fd, rate)) {
		printf("Unsupported Baud Rate.\n");
		setlinebuf(stdout);
		exit(0);
	}
	if (set_Parity(fd,8,1,'N')== FALSE) {
		printf("Set Parity Error\n");
		exit(0);
	}
	buf = '\0';
	while(buf != 'o') {
		while(read(fd,&buf,1)==0);
	}
	printf("OK.\n");
	printf("Setting Address...");
	/* set address */
	buf = 'd';
	write(fd, &buf, 1);
	buf = '\0';
	while(buf != 'd') {
		while(read(fd,&buf,1)==0);
	}
	tmp = atohex(addr);

	if((tmp%0x20000) != 0) {
		printf("Unsupported Address.\n");
		setlinebuf(stdout);
		exit(0);
	}
	write(fd, &tmp, 4);
	buf = '\0';
	while(buf != 'o') {
		while(read(fd,&buf,1)==0);
	}
	printf("OK.\n");
	printf("Setting Data Length...");
	/* set file length */
	if((fp=fopen(filename, "rb+")) == NULL) {
		printf("Fail To Open  The File: %s\n", filename);
		setlinebuf(stdout);
		exit(0);
	}
	filelen = flen(fp);
	tmp = filelen;
	if((filelen%2) == 1)
		filelen++;
	buf = 'l';
	write(fd, &buf, 1);
	while(buf != 'l') {
		while(read(fd,&buf,1)==0);
	}
	write(fd, &filelen, 4);
	buf = '\0';
	while(buf != 'o') {
		while(read(fd,&buf,1)==0);
	}
	printf("OK.\n");
	/* file operation */
	buf = 'f';
	write(fd, &buf, 1);
	buf = '\0';
	while(buf != 'f') {
		while(read(fd,&buf,1)==0);
	}
	/* at the moment we only can write the file to board */

	filelen = tmp;
	step = tmp/50;
	printf("Sending Data : [ 0% ]");
	while(tmp>1024) {
		fread((void *)str, 1024, 1, fp);
		write(fd, str, 1024);
		tmp = tmp-1024;
		finished += 1024;
		oldtrack = track;
		while(finished >= step*(track+1)) {
			track++;
		}
		if(oldtrack != track) {
			oldtrack = track;
			printf("\rSending Date : ");
			for(i=0;i<track;i++)
				printf("#");
			printf(" [ %d% ]", track*2);
		}
	}
	fread((void *)str, tmp, 1, fp);
	write(fd, str, tmp);
	if((filelen%2) == 1) {
		buf = 0xff;
		write(fd, &buf, 1);
		filelen++;
	}
	track = 50;
	printf("\rSending Date : ");
	for(i=0;i<track;i++)
		printf("#");
	buf = '\0';
	while(buf != 'o') {
		while(read(fd,&buf,1)==0);
	}
	printf(" [ 100% ]\n");
	buf = 'w';
	write(fd, &buf, 1);
	buf = '\0';
	while(buf != 'w') {
		while(read(fd,&buf,1)==0);
	}

	/* show the track of the eeprom store */
	track = 0;
	step = filelen/50;	// the length of the file on the board is not same as the length of the file
				// on the computer
	finished = 0;
	oldtrack = 0;
	printf("Writing Flash: [ 0% ]");
	while(1) {
		buf = '\0';
		while((buf!='k') && (buf!='.')) {
			while(read(fd,&buf,1)==0);
		}
		if(buf == '.') {
			finished += 1024;
			oldtrack = track;
			while(finished >= step*(track+1)) {
				track++;
			}
			if(oldtrack != track) {
				oldtrack = track;
				printf("\rWriting Flash: ");
				for(i=0;i<track;i++)
					printf("#");
				printf(" [ %d% ]", track*2);
			}
		}
		if(buf == 'k') {
			track = 50;
			printf("\rWriting Flash: ");
			for(i=0;i<track;i++)
				printf("#");
			printf(" [ 100% ]\n");
			setlinebuf(stdout);
			return(TRUE);
		}
	}
	setlinebuf(stdout);
	return (FALSE);
}

int
main(int argc, char **argv) {
	int fd = 0;
	char cmd[128];
	char param[128];
	int i = 1;
	int readparam = 0;

	char device[128];
	int rate;
	char filename[128];
	char address[128];
	default_init(device, &rate, filename, address);
	while(i < argc) {
		i++;
		if(strlen(argv[i-1]) > 127) {
			printf("Too long Parameter, Error.\n");
			print_help();
			exit(0);
		}
		if(readparam == 1) {
			strcpy(param, argv[i-1]);
			if(param[0] == '-') {
				printf("Parameter Error.\n");
				print_help();
				exit(0);
			}
			if((strcmp(cmd, "--device")==0) || (strcmp(cmd, "-d")==0)) {
				strcpy(device, "/dev/");
				strcat(device, param);
			}
			else if((strcmp(cmd, "--rate")==0) || (strcmp(cmd, "-r")==0)) {
				rate = atol(param);
			}
			else if((strcmp(cmd, "--filename")==0) || (strcmp(cmd, "-f")==0)) {
				strcpy(filename, param);
			}
			else if((strcmp(cmd, "--address")==0) || (strcmp(cmd, "-a")==0)) {
				strcpy(address, param);
			}
			else {
				printf("Parameter Error.\n");
				print_help();
				exit(0);
			}
			readparam = 0;
		}
		else {
			strcpy(cmd, argv[i-1]);
			if(strlen(cmd) <= 1) {
				printf("Parameter Error.\n");
				print_help();
				exit(0);
			}
			if(cmd[0] != '-') {
				printf("Parameter Error.\n");
				print_help();
				exit(0);
			}
			if((strcmp(cmd, "--help")==0) || (strcmp(cmd, "-h")==0)) {
				print_help();
				exit(0);
			}
			if((strcmp(cmd, "--version")==0) || (strcmp(cmd, "-v")==0)) {
				PRINT_VERSION
				exit(0);
			}
			readparam = 1;
		}
	}
	if((readparam==1) && (argc!=1)) {
			printf("Parameter Error.\n");
			print_help();
			exit(0);
	}
	fd = OpenDev(device);
	if(fd <= 0) {
		printf("Can't Open Serial Port, Error.\n");
		exit(0);
	}
	if(!transfer(fd, rate, address, filename)) {
		printf("Fail To Send The File.\n ");
		exit(0);
	}
	tty_reset(fd);
	close(fd);
	printf("All Done Successful !\n");
	exit(0);
}