X-Git-Url: https://hackdaworld.org/gitweb/?a=blobdiff_plain;f=betty%2Flpcload.c;h=19d5a5b2904aebc9dcdc242090ecd506331b4c95;hb=ed474ffa00e2e35babccb09d039a7a65939097a0;hp=80af804153dc5697da32ba6ae3f30a598cfcd45d;hpb=d1ece6f866fffde0a4322a3819056fce3d4123b8;p=my-code%2Farm.git

diff --git a/betty/lpcload.c b/betty/lpcload.c
index 80af804..19d5a5b 100644
--- a/betty/lpcload.c
+++ b/betty/lpcload.c
@@ -18,12 +18,24 @@
 
 #define VERBOSE			(1<<0)
 #define FIRMWARE		(1<<1)
+#define BANK0			(1<<2)
+#define BANK2			(1<<3)
+#define BL			(1<<4)
 
+#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 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"
@@ -58,17 +70,24 @@ typedef struct s_lpc {
 	char fwfile[128];	/* firmware file */
 	u8 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 */
 	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("  -v\n");
 
 }
@@ -93,8 +112,8 @@ 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
 
@@ -109,7 +128,6 @@ 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);
 	
@@ -120,19 +138,39 @@ int open_serial_device(t_lpc *lpc) {
 	// more control options -> timeout / flow control
 	
 	term.c_cc[VMIN]=0;
-	term.c_cc[VTIME]=40;	// 4 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);
+
+	ret=tcsetattr(lpc->sfd,TCSANOW,&term);
+
+	return ret;
+}
+
+int open_firmware(t_lpc *lpc) {
 
 	/* open firmware file */
 
@@ -141,19 +179,40 @@ int open_firmware(t_lpc *lpc) {
 	if(lpc->fwfd<0)
 		perror("fw open");
 
-	/* read hex file offset */
+	return lpc->fwfd;
+}
 
-	ret=read(lpc->fwfd,buf,7);
-	if(buf[0]!=':') {
-		printf("fw open: not an intel hex file?\n");
-		return -1;
+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;
+		}
 	}
-	sscanf(buf+3,"%04x",&(lpc->hoff));
-	lseek(lpc->fwfd,0,SEEK_SET);
 
-	return lpc->fwfd;
-}
+	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;
@@ -185,6 +244,8 @@ 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) {
@@ -198,6 +259,11 @@ 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)
@@ -319,9 +385,9 @@ 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,len,TXRX_TYPE_CMD);
+	ret=txrx(lpc,buf,len,TXRX_TYPE_GO);
 
 	return ret;
 }
@@ -361,7 +427,7 @@ 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)
@@ -450,10 +516,6 @@ int firmware_to_ram(t_lpc *lpc) {
 		/* read len */
 		ret=read(lpc->fwfd,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);
 		sscanf(buf,"%04x",&addr);
@@ -479,10 +541,18 @@ int firmware_to_ram(t_lpc *lpc) {
 			//	/* get cs and ip */
 			//	break;
 			case 0x00:
+				if(len%4) {
+					printf("fw to ram: invalid len\n");
+					return -1;
+				}
 				write_to_ram(lpc,buf,addr,len);
 				break;
-			case 0x01:
-				write_to_ram(lpc,buf,addr,len);
+			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);
@@ -493,11 +563,89 @@ 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;
+	int i;
+	u8 buf[16];
+
+	printf("dumping content (addr=0x%08x, len=0x%08x) ...\n",addr,len);
+
+	/* send cmd */
+	size=1+4+4;
+	cnt=0;
+	buf[0]=CMD_READ;
+	buf[1]=(addr>>24)&0xff;
+	buf[2]=(addr>>16)&0xff;
+	buf[3]=(addr>>8)&0xff;
+	buf[4]=addr&0xff;
+	buf[5]=(len>>24)&0xff;
+	buf[6]=(len>>16)&0xff;
+	buf[7]=(len>>8)&0xff;
+	buf[8]=len&0xff;
+	printf("  sending cmd: ");
+	while(size) {
+		ret=write(sfd,buf+cnt,size);
+		for(i=cnt;i<cnt+ret;i++)
+			printf("%02x ",buf[i]);
+		if(ret<0) {
+			perror("dump file: send cmd ");
+			return ret;
+		}
+		size-=ret;
+		cnt+=ret;
+	}
+	printf("\n");
+
+	/* 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;
-	u8 buf[BUFSIZE];
 	int ret;
 
 	/*
@@ -507,6 +655,7 @@ 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 */
 
@@ -531,6 +680,27 @@ 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;
+				}
+				
 			default:
 				usage();
 				return -1;
@@ -557,6 +727,10 @@ int main(int argc,char **argv) {
 	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);
@@ -569,32 +743,32 @@ int main(int argc,char **argv) {
 	printf("go ...\n");
 	ret=go(&lpc);
 
-	/* tell the user that the error might be due to the jump */
-	printf("\n\n");
-	if(ret<0)
-		printf("the above error might be due to the jump!\n\n");
-
-	/* query user for serial port listening */
-	printf("continue listening on serial port? (ctrl+c to quit) [y|n]: ");
-	buf[0]=getchar();
-	printf("\n");
+	/* flush the lpc2220 tx buf */
+	lpc_txbuf_flush(&lpc);
 
-	if(buf[0]!='y')
+	/* reconfigure the serial port */
+	if(reconfig_serial_device(&lpc)<0)
 		goto end;
 
-	/* continue lsitening on serial port */
-	ret=1;
-	while(ret) {
-		ret=read(lpc.sfd,buf,BUFSIZE);
-		printf("\rread %d bytes: ",ret);
-		for(i=0;i<ret;i++)
-			printf("%02x ",buf[i]);
-		printf("\n");
-	}
+	/* 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);
 
 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);
 
 	return 0;
 }