X-Git-Url: https://hackdaworld.org/gitweb/?p=my-code%2Farm.git;a=blobdiff_plain;f=betty%2Flpcload.c;h=38d53864c778ab7922392c2327c326955bc3cec6;hp=6ec118628d38eb537e43662cc408256159427bce;hb=3e0847553a5d514589116f8cf933d454a0db491c;hpb=14acad803dec0c6e18b1825f2b84e9bbcd409554

diff --git a/betty/lpcload.c b/betty/lpcload.c
index 6ec1186..38d5386 100644
--- a/betty/lpcload.c
+++ b/betty/lpcload.c
@@ -4,7 +4,7 @@
  * author: hackbard@hackdaworld.org, rolf.anders@physik.uni-augsburg.de
  *
  * build: make
- * usage: sudo ./lpcload -d /dev/ttyS0 -f firmware.hex [-v]
+ * usage: sudo ./lpcload -d /dev/ttyS0 -f firmware.hex -D0 fw0.bin [-v]
  */
 
 #include <stdio.h>
@@ -18,12 +18,28 @@
 
 #define VERBOSE			(1<<0)
 #define FIRMWARE		(1<<1)
-
+#define BANK0			(1<<2)
+#define BANK2			(1<<3)
+#define BL			(1<<4)
+#define FLASHFW			(1<<5)
+#define BINARY			(1<<6)
+
+#define BANK0_ADDR		0x80000000
+#define BANK2_ADDR		0x82000000
+#define BANK_SIZE		0x00100000
+#define BL_ADDR			0x7fffe000
+#define BL_SIZE			0x00002000
+
+#define CMD_READ		'R'		// stay compatible to fwflash!
+#define CMD_WRITE		'W'
+#define CMD_CHIP_ERASE		'E'
+
+#define TXRX_TYPE_SYNC		0x00
+#define TXRX_TYPE_CKSM		0x00
 #define TXRX_TYPE_BAUD		0x01
-#define TXRX_TYPE_SYNC		0x02
-#define TXRX_TYPE_CMD		0x03
-#define TXRX_TYPE_DATA		0x04
-#define TXRX_TYPE_CKSM		0x05
+#define TXRX_TYPE_CMD		0x02
+#define TXRX_TYPE_DATA		0x03
+#define TXRX_TYPE_GO		0x04
 
 #define CMD_SUCCESS		"0\r\n"
 #define INVALID_COMMAND		"1\r\n"
@@ -42,6 +58,9 @@
 #define INVALID_BAUD_RATE	"17\r\n"
 #define INVALID_STOP_BIT	"18\r\n"
 
+#define RAM			0x01
+#define FLASH			0x02
+
 #define CRYSTFREQ		"10000"
 #define RAMOFFSET		0x40000200
 
@@ -56,19 +75,30 @@ typedef struct s_lpc {
 	char sdev[128];		/* seriel device */
 	int fwfd;		/* fimrware fd */
 	char fwfile[128];	/* firmware file */
-	u8 info;		/* info/mode */
+	u32 info;		/* info/mode */
 	char freq[8];		/* frequency */
-	u32 hoff;		/* start addr of ihex file */
+	char bank0[127];	/* flash dump bank0 */
+	int b0fd;		/* dumpfile fd bank0 */
+	char bank2[127];	/* flash dump bank2 */
+	int b2fd;		/* dumpfile fd bank0 */
+	char bl[127];		/* flash dump bootloader */
+	int blfd;		/* dumpfile fd bootloader */
+	char ffwfile[127];	/* file with firmware to be flashed */
+	int ffwfd;		/* fd of the above */
 	u32 roff;		/* ram offset of uc */
+	u32 jaddr;		/* addr for the jump */
 } t_lpc;
 
 void usage(void) {
 
 	printf("possible argv:\n");
-	printf("  -d <serial device>\n");
-	printf("  -f <firmware>\n");
-	printf("  -c <crystal freq>\n");
-	printf("  -r <ram offset>\n");
+	printf("  -d  <serial device>\n");
+	printf("  -f  <firmware>\n");
+	printf("  -c  <crystal freq>\n");
+	printf("  -Dx <filename>\n");
+	printf("      x=0: bank0, x=2: bank2, x=b: bootloader\n");
+	printf("  -w <firmware which goes to flash>\n");
+	printf("  -b (if firmware for flash is a binary)\n");
 	printf("  -v\n");
 
 }
@@ -93,8 +123,8 @@ int open_serial_device(t_lpc *lpc) {
 
 	// input/output baudrate
 
-	cfsetispeed(&term,B9600);
-	cfsetospeed(&term,B9600);
+	cfsetispeed(&term,B38400);
+	cfsetospeed(&term,B38400);
 
 	// control options -> 8n1
 
@@ -109,47 +139,106 @@ int open_serial_device(t_lpc *lpc) {
 
 	// input options -> enable flow control
 	
-	//term.c_iflag&=~(IXON|IXOFF|IXANY|INLCR|ICRNL);
 	term.c_iflag&=~(INLCR|ICRNL|IXANY);
 	term.c_iflag|=(IXON|IXOFF);
+	
+	// output options
+
+	term.c_oflag=0;
 
 	// more control options -> timeout / flow control
 	
 	term.c_cc[VMIN]=0;
-	term.c_cc[VTIME]=10;	// 1 second timeout
-	term.c_cc[VSTART]=0x11;
-	term.c_cc[VSTOP]=0x13;
+	term.c_cc[VTIME]=20;	// 2 seconds timeout
+	//term.c_cc[VSTART]=0x11;
+	//term.c_cc[VSTOP]=0x13;
 
 	tcsetattr(lpc->sfd,TCSANOW,&term);
 
 	return lpc->sfd;
 }
 
-int open_firmware(t_lpc *lpc) {
+int reconfig_serial_device(t_lpc *lpc) {
 
+	struct termios term;
 	int ret;
-	char buf[BUFSIZE];
+
+	/* reconfigure the serial device for our lousy loader tool */
+
+	tcgetattr(lpc->sfd,&term);
+
+	// disable flow control
+	
+	term.c_iflag&=~(IXON|IXOFF|IXANY|INLCR|ICRNL);
+
+	// change baudrate
+
+	cfsetispeed(&term,B115200);
+	cfsetospeed(&term,B115200);
+
+	// timeouts
+	
+	term.c_cc[VMIN]=0;
+	term.c_cc[VTIME]=100;	// 10 seconds timeout
+
+	ret=tcsetattr(lpc->sfd,TCSANOW,&term);
+
+	return ret;
+}
+
+int open_firmware(t_lpc *lpc) {
 
 	/* open firmware file */
 
 	lpc->fwfd=open(lpc->fwfile,O_RDONLY);
 
-	if(lpc->fwfd<0)
+	if(lpc->fwfd<0) {
 		perror("fw open");
+		return lpc->fwfd;
+	}
 
-	/* read hex file offset */
-
-	ret=read(lpc->fwfd,buf,7);
-	if(buf[0]!=':') {
-		printf("fw open: not an intel hex file?\n");
-		return -1;
+	if(lpc->info&FLASHFW) {
+		lpc->ffwfd=open(lpc->ffwfile,O_RDONLY);
+		if(lpc->ffwfd<0) {
+			perror("ffw open");
+			return lpc->ffwfd;
+		}
 	}
-	sscanf(buf+3,"%04x",&(lpc->hoff));
-	lseek(lpc->fwfd,0,SEEK_SET);
 
 	return lpc->fwfd;
 }
 
+int open_dumpfiles(t_lpc *lpc) {
+
+	/* open dumpfiles */
+
+	if(lpc->info&BANK0) {
+		lpc->b0fd=open(lpc->bank0,O_WRONLY|O_CREAT);
+		if(lpc->b0fd<0) {
+			perror("bank0 dump file open");
+			return lpc->b0fd;
+		}
+	}
+
+	if(lpc->info&BANK2) {
+		lpc->b2fd=open(lpc->bank2,O_WRONLY|O_CREAT);
+		if(lpc->b2fd<0) {
+			perror("bank2 dump file open");
+			return lpc->b2fd;
+		}
+	}
+
+	if(lpc->info&BL) {
+		lpc->blfd=open(lpc->bl,O_WRONLY|O_CREAT);
+		if(lpc->blfd<0) {
+			perror("bootloader dump file open");
+			return lpc->blfd;
+		}
+	}
+
+	return 0;
+
+}
 int txrx(t_lpc *lpc,char *buf,int len,u8 type) {
 
 	int ret,cnt;
@@ -181,6 +270,8 @@ int txrx(t_lpc *lpc,char *buf,int len,u8 type) {
 		printf("| (%d)\n",cnt);
 	}
 
+
+
 	/* cut the echo if not of type auto baud */
 
 	if(type!=TXRX_TYPE_BAUD) {
@@ -194,6 +285,11 @@ int txrx(t_lpc *lpc,char *buf,int len,u8 type) {
 		}
 	}
 
+	/* return if type is go */
+
+	if(type==TXRX_TYPE_GO)
+		return cnt;
+
 	/* return here if type is data */
 
 	if(type==TXRX_TYPE_DATA)
@@ -315,9 +411,9 @@ int go(t_lpc *lpc) {
 	char buf[BUFSIZE];
 	int ret,len;
 
-	snprintf(buf,BUFSIZE,"G %d A\r\n",lpc->roff);
+	snprintf(buf,BUFSIZE,"G %d A\r\n",lpc->jaddr);
 	len=strlen(buf);
-	ret=txrx(lpc,buf,ret,TXRX_TYPE_CMD);
+	ret=txrx(lpc,buf,len,TXRX_TYPE_GO);
 
 	return ret;
 }
@@ -349,7 +445,7 @@ int write_to_ram(t_lpc *lpc,char *buf,u32 addr,int len) {
 	}
 
 	/* make it a multiple of 3 (reason: uuencode) */
-	nlen=(len/3+1)*3;
+	nlen=(!(len%3))?len:((len/3+1)*3);
 	if(nlen>BUFSIZE) {
 		printf("ram write: too much data\n");
 		return -1;
@@ -357,7 +453,7 @@ int write_to_ram(t_lpc *lpc,char *buf,u32 addr,int len) {
 	for(i=len;i<nlen;i++) buf[i]=0;
 
 	/* prepare addr */
-	addr+=(lpc->roff-lpc->hoff);
+	addr+=lpc->roff;
 
 	/* prepare write command */
 	if(lpc->info&VERBOSE)
@@ -376,7 +472,8 @@ int write_to_ram(t_lpc *lpc,char *buf,u32 addr,int len) {
 	while(bcnt<nlen) {
 
 		/* uuencode / prepare data bytes */
-		uuencode((u8 *)(buf+bcnt),(u8 *)(txrxbuf),bcnt==nlen-3?len%3:3);
+		uuencode((u8 *)(buf+bcnt),(u8 *)(txrxbuf),
+		         (bcnt==nlen-3)?(len%3?len%3:3):3);
 		txrxbuf[5]='\r';
 		txrxbuf[6]='\n';
 
@@ -384,7 +481,7 @@ int write_to_ram(t_lpc *lpc,char *buf,u32 addr,int len) {
 		checksum+=((u8)buf[bcnt]+(u8)buf[bcnt+1]+(u8)buf[bcnt+2]);
 
 		/* send a data line */
-		txrx(lpc,txrxbuf,6,TXRX_TYPE_DATA);
+		txrx(lpc,txrxbuf,7,TXRX_TYPE_DATA);
 
 		/* increase counters */
 		lcount+=1;
@@ -419,17 +516,144 @@ int write_to_ram(t_lpc *lpc,char *buf,u32 addr,int len) {
 	return 0;
 }
 
-int firmware_to_ram(t_lpc *lpc) {
+int send_cmd(int sfd,u32 addr,u32 len,u8 cmd) {
+
+	int ret,i,cnt,size;
+	int as,ls;
+	u8 send[9];
+
+	switch(cmd) {
+		case CMD_READ:
+		case CMD_WRITE:
+			as=4;
+			ls=4;
+			break;
+		case CMD_CHIP_ERASE:
+			as=0;
+			ls=1;
+			break;
+		default:
+			printf("send cmd: cmd '%02x' not supported\n",cmd);
+			return -1;
+	}
+
+	size=1+as+ls;
+	send[0]=cmd;
+
+	for(i=0;i<as;i++)
+		send[1+i]=(addr>>((as-1-i)*8))&0xff;
+	for(i=0;i<ls;i++)
+		send[1+i+as]=(len>>((ls-1-i)*8))&0xff;
+
+	cnt=0;
+	while(size) {
+		ret=write(sfd,send+cnt,size);
+		if(ret<0) {
+			perror("dump file: send cmd ");
+			return ret;
+		}
+		size-=ret;
+		cnt+=ret;
+	}
+
+	/* flush  */
+	tcflush(sfd,TCIOFLUSH);
+
+	return 0;
+}
+
+int write_to_flash(t_lpc *lpc,u8 *buf,u32 addr,int len) {
+
+	int cnt,ret;
+	u8 cksml,cksmr;
+	int i;
+
+	/* prepare addr */
+	addr+=lpc->roff;
+
+	/* send cmd */
+	send_cmd(lpc->sfd,addr,len,CMD_WRITE);
+
+	/* transfer data */
+	cnt=0;
+	cksml=0;
+	while(len) {
+		ret=write(lpc->sfd,buf+cnt,len);
+		if(ret<0) {
+			perror("transmit flash content (w)");
+			return ret;
+		}
+		for(i=cnt;i<cnt+ret;i++)
+			cksml+=buf[i];
+		len-=ret;
+		cnt+=ret;
+	}
+
+
+	/* check ack */
+	while(1) {
+		ret=read(lpc->sfd,&cksmr,1);
+		if(ret<0) {
+			perror("write to flash: read cksm");
+			return ret;
+		}
+		if(ret==1) break;
+	}
+	if(cksml!=cksmr) {
+		printf("FATAL: wrong checksum or failure in flash write!\n");
+		if(cksml+1==cksmr)
+			printf(" -> most probably due to flash write!\n");
+		else
+			printf(" -> most probably failure in transfer!\n");
+		printf(" addr:0x%08x l:%02x r:%02x\n",addr,cksml,cksmr);
+	}
+
+	return 0;
+}
+
+int firmware_to_mem(t_lpc *lpc,u8 memtype) {
 
 	char buf[BUFSIZE];
 	u32 addr,len,type;
 	int ret,temp;
+	int fd;
+
+	/* prepare for memory type */
+	if(memtype==RAM)
+		fd=lpc->fwfd;
+	else if(memtype==FLASH)
+		fd=lpc->ffwfd;
+	else
+		return -1;
+
+	/* another evil hack to support binary format */
+	if((lpc->info&BINARY)&&(memtype==FLASH)) {
+		addr=0;
+		ret=1;
+		while(ret) {
+			ret=read(fd,buf,16);
+			if(ret!=16) {
+				printf("D'OH ...\n");
+				return -1;
+			}
+			buf[16]='s'; // skip
+			for(temp=0;temp<16;temp++)
+				if((u8)buf[temp]!=0xff)
+					buf[16]='w'; // write
+			printf("addr:%08x\r",addr+lpc->roff);
+			fflush(stdout);
+			if(buf[16]=='w') 
+				write_to_flash(lpc,(u8 *)buf,addr,16);
+			addr+=16;
+		}
+		return 0;
+	}
 
 	/* read a line */
 	ret=1;
 	while(ret) {
 		/* sync line */
-		ret=read(lpc->fwfd,buf,1);
+		ret=read(fd,buf,1);
 		switch(buf[0]) {
 			case '\r':
 				continue;
@@ -439,29 +663,25 @@ int firmware_to_ram(t_lpc *lpc) {
 				/* start code */
 				break;
 			default:
-				printf("fw to ram: no ihex format\n");
+				printf("fw to mem: no ihex format\n");
 				return -1;
 		}
 		/* read len */
-		ret=read(lpc->fwfd,buf,2);
+		ret=read(fd,buf,2);
 		sscanf(buf,"%02x",&len);
-		if(len%4) {
-			printf("fw to ram: len not a multiple of 4\n");
-			return -1;
-		}
 		/* read addr */
-		ret=read(lpc->fwfd,buf,4);
+		ret=read(fd,buf,4);
 		sscanf(buf,"%04x",&addr);
 		/* read type */
-		ret=read(lpc->fwfd,buf,2);
+		ret=read(fd,buf,2);
 		sscanf(buf,"%02x",&type);
 		/* successfull return if type is end of file */
 		if(type==0x01)
 			return 0;
 		/* read data (and cksum) */
-		ret=read(lpc->fwfd,buf,2*(len+1));
+		ret=read(fd,buf,2*(len+1));
 		if(ret!=(2*(len+1))) {
-			printf("fw to ram: data missing\n");
+			printf("fw to mem: data missing\n");
 				return -1;
 		}
 		for(ret=0;ret<len;ret++) {
@@ -470,14 +690,28 @@ int firmware_to_ram(t_lpc *lpc) {
 		}
 		/* act according to type */
 		switch(type) {
-			case 0x03:
-				/* get cs and ip */
-				break;
+			//case 0x03:
+			//	/* get cs and ip */
+			//	break;
 			case 0x00:
-				write_to_ram(lpc,buf,addr,len);
+				if(len%4) {
+					printf("fw to mem: invalid len\n");
+					return -1;
+				}
+				if(memtype==RAM)
+					write_to_ram(lpc,buf,addr,len);
+				else
+					write_to_flash(lpc,(u8 *)buf,addr,len);
+				break;
+			case 0x04:
+				lpc->roff=((buf[0]<<24)|(buf[1]<<16));
+				break;
+			case 0x05:
+				lpc->jaddr=((buf[0]<<24)|(buf[1]<<16));
+				lpc->jaddr|=((buf[2]<<8)|buf[3]);
 				break;
 			default:
-				printf("fw to ram: unknown type %02x\n",type);
+				printf("fw to mem: unknown type %02x\n",type);
 				return -1;
 		}
 	}
@@ -485,10 +719,66 @@ int firmware_to_ram(t_lpc *lpc) {
 	return 0;
 }
 
+int lpc_txbuf_flush(t_lpc *lpc) {
+
+	int i,ret;
+	u8 buf[16];
+
+	ret=1;
+	printf("flushing lpc tx buffer: ");
+	while(ret) {
+		ret=read(lpc->sfd,buf,16);
+		for(i=0;i<ret;i++)
+			printf("%02x ",buf[i]);
+	}
+	printf("\n");
+
+	return 0;
+}
+
+int dump_files(int sfd,int dfd,u32 addr,u32 len) {
+
+	int ret;
+	int size;
+	int cnt;
+	u8 buf[16];
+
+	printf("dumping content (addr=0x%08x, len=0x%08x) ...\n",addr,len);
+
+	/* send the cmd */
+	send_cmd(sfd,addr,len,CMD_READ);
+
+	/* receive data and dump it to file */
+	ret=1;
+	cnt=0;
+	printf("  receiving data ...\n");
+	while(ret) {
+		ret=read(sfd,buf,16);
+		if(ret<0) {
+			perror("dump file: read data");
+			return ret;
+		}
+		size=ret;
+		cnt=0;
+		while(size) {
+			ret=write(dfd,buf+cnt,size-cnt);
+			if(ret<0) {
+				perror("dump file: write data");
+				return ret;
+			}
+			cnt+=ret;
+			size-=ret;
+		}
+	}
+
+	return 0;
+}
+
 int main(int argc,char **argv) {
 
 	t_lpc lpc;
 	int i;
+	int ret;
 
 	/*
 	 * initial ... 
@@ -497,6 +787,7 @@ int main(int argc,char **argv) {
 	memset(&lpc,0,sizeof(t_lpc));
 	strncpy(lpc.freq,CRYSTFREQ,7);
 	lpc.roff=RAMOFFSET;
+	lpc.jaddr=RAMOFFSET;
 
 	/* parse argv */
 
@@ -521,6 +812,33 @@ int main(int argc,char **argv) {
 			case 'c':
 				strncpy(lpc.freq,argv[++i],7);
 				break;
+			case 'D':
+				if(argv[i][2]=='0') {
+					lpc.info|=BANK0;
+					strncpy(lpc.bank0,argv[++i],127);
+					break;
+				}
+				else if(argv[i][2]=='2') {
+					lpc.info|=BANK2;
+					strncpy(lpc.bank2,argv[++i],127);
+					break;
+				}
+				else if(argv[i][2]=='b') {
+					lpc.info|=BL;
+					strncpy(lpc.bl,argv[++i],127);
+					break;
+				}
+				else {
+					usage();
+					return -1;
+				}
+			case 'w':
+				strncpy(lpc.ffwfile,argv[++i],127);
+				lpc.info|=FLASHFW;
+				break;
+			case 'b':
+				lpc.info|=BINARY;
+				break;
 			default:
 				usage();
 				return -1;
@@ -532,28 +850,77 @@ int main(int argc,char **argv) {
 	if(open_serial_device(&lpc)<0)
 		goto end;
 
-	/* open firmware file */
-	if(open_firmware(&lpc)<0)
-		goto end;
-
 	/* boot loader init */
 	printf("boot loader init ...\n");
 	if(bl_init(&lpc)<0)
 		return -1;
 
+	/* quit if there is no hex file to process */
+	if(!(lpc.info&FIRMWARE)) {
+		printf("no firmware -> aborting\n");
+		goto end;
+	}
+
+	/* open firmware file */
+	if(open_firmware(&lpc)<0)
+		goto end;
+
+	/* open dump files */
+	if(open_dumpfiles(&lpc)<0)
+		goto end;
+
 	/* parse intel hex file and write to ram */
 	printf("write firmware to ram ...\n");
-	firmware_to_ram(&lpc);
+	firmware_to_mem(&lpc,RAM);
 
 	/* unlock go cmd */
+	printf("unlock go command ...\n");
 	unlock_go(&lpc);
 
 	/* go! */
-	go(&lpc);
+	printf("go ...\n");
+	ret=go(&lpc);
+
+	/* flush the lpc2220 tx buf */
+	lpc_txbuf_flush(&lpc);
+
+	/* reconfigure the serial port */
+	if(reconfig_serial_device(&lpc)<0)
+		goto end;
+
+	/* download flash/bootloader content */
+	if(lpc.info&BANK0)
+		dump_files(lpc.sfd,lpc.b0fd,BANK0_ADDR,BANK_SIZE);
+	if(lpc.info&BANK2)
+		dump_files(lpc.sfd,lpc.b2fd,BANK2_ADDR,BANK_SIZE);
+	if(lpc.info&BL)
+		dump_files(lpc.sfd,lpc.blfd,BL_ADDR,BL_SIZE);
+
+	/* write a firmware to the lpc flash */
+	if(lpc.info&FLASHFW) {
+		printf("writing firmware to flash ...\n");
+		send_cmd(lpc.sfd,0,'0',CMD_CHIP_ERASE);
+		/* ack */
+		ret=0;
+		while(!ret)
+			read(lpc.sfd,&ret,1);
+		lpc.roff=BANK0_ADDR;
+		firmware_to_mem(&lpc,FLASH);
+	}
 
 end:
-	close(lpc.sfd);
-	close(lpc.fwfd);
+	if(lpc.sfd)
+		close(lpc.sfd);
+	if(lpc.fwfd)
+		close(lpc.fwfd);
+	if(lpc.b0fd)
+		close(lpc.b0fd);
+	if(lpc.b2fd)
+		close(lpc.b2fd);
+	if(lpc.blfd)
+		close(lpc.blfd);
+	if(lpc.ffwfd)
+		close(lpc.ffwfd);
 
 	return 0;
 }