From 4007dd74f58e0d3f50c2e26265542a1429679434 Mon Sep 17 00:00:00 2001 From: Krzysztof Rutecki Date: Tue, 10 Jun 2014 15:37:02 +0200 Subject: [PATCH] Create hex2dfu.c --- hex2dfu.c | 391 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 391 insertions(+) create mode 100644 hex2dfu.c diff --git a/hex2dfu.c b/hex2dfu.c new file mode 100644 index 0000000..746d689 --- /dev/null +++ b/hex2dfu.c @@ -0,0 +1,391 @@ +#include +#include +#include +#include +#include + +#define TARGET_NAME_ENCEDO "Encedo" + +void print_help(void); +int hex2bin(unsigned char *obuf, const char *ibuf, int len); +int check_checksum(unsigned char *inbuf, int len); +unsigned char *ihex2bin_buf(unsigned int *start_address, int *dst_len, FILE *inFile); +uint32_t crc32(uint32_t crc, const void *buf, size_t size); + + +int main (int argc, char **argv) { + int i, c, vid =0x0483, pid = 0xdf11, ver = 0xffff; + char *tar0 = NULL, *tar0_lab = NULL, *out_fn = NULL; + FILE *inFile, *outFile; + + unsigned int tar0_start_address; + int tar0_len; + unsigned char *tar0_buf; + + unsigned char *dfu; + int dfu_len; + unsigned int crc = 0, tmp, add_crc32 = 0; + + opterr = 0; + while ((c = getopt (argc, argv, "hv:p:d:i:l:o:c:")) != -1) { + switch (c) { + case 'i': //target0 input file name + tar0 = optarg; + break; + case 'l': //target0 label + tar0_lab = optarg; + break; + case 'p': //PID + pid = strtol (optarg, NULL, 16); + break; + case 'v': //VID + vid = strtol (optarg, NULL, 16); + break; + case 'd': //device version + ver = strtol (optarg, NULL, 16); + break; + case 'c': //place crc32 at this address + add_crc32 = strtol (optarg, NULL, 16); + break; + case 'o': //output file name + out_fn = optarg; + break; + case 'h': + print_help(); + break; + case '?': + fprintf (stderr, "Parameter(s) parsing failed!\n"); + return 1; + default: + break; + } + } + + if (!tar0) { + perror ("No input file specifed.\n"); + return 0; + } + + if (!out_fn) { + perror ("No output file specifed.\n"); + return 0; + } + + inFile = fopen ( tar0, "r"); + tar0_buf = ihex2bin_buf(&tar0_start_address, &tar0_len, inFile); + fclose (inFile); + if (tar0_buf && (tar0_len > 0)) { + printf("Data Start Address: 0x%08x\r\n", tar0_start_address); + printf("Data Length: %ub\r\n", tar0_len); + if ((add_crc32>0) && (add_crc32 < (tar0_start_address+tar0_len-4))) { //-c request CRC32 placement at given address + add_crc32 -= tar0_start_address; + tar0_buf[add_crc32 + 4] = tar0_len>>0 & 0xFF; //binary code length first(little endian) + tar0_buf[add_crc32 + 5] = tar0_len>>8 & 0xFF; + tar0_buf[add_crc32 + 6] = tar0_len>>16 & 0xFF; + tar0_buf[add_crc32 + 7] = tar0_len>>24 & 0xFF; + crc = crc32(0, tar0_buf, add_crc32); //calc CRC upto placement address + crc = crc32(crc, tar0_buf+add_crc32+4, tar0_len-(add_crc32+4)); //calc the rest of - starting from placement+4 up to end + tar0_buf[add_crc32] = crc>>0 & 0xFF; //CRC placement (little endian) + tar0_buf[add_crc32 + 1] = crc>>8 & 0xFF; + tar0_buf[add_crc32 + 2] = crc>>16 & 0xFF; + tar0_buf[add_crc32 + 3] = crc>>24 & 0xFF; + printf("Additional CRC32 data: 0x%08x:0x%08x\r\n",add_crc32+tar0_start_address ,crc); + } + + dfu_len = 11 + 274 + 8+ tar0_len + 16; + dfu = calloc(1, dfu_len); + if (dfu) { + //DFU Suffix + memmove(dfu, "DfuSe", 5); //szSignature + dfu[5] = 0x01; //bVersion + tmp = dfu_len - 0x10; + dfu[6] = (unsigned char)(tmp & 0xFF); //DFUImageSize (except Prefix!) + dfu[7] = (unsigned char)(tmp>>8 & 0xFF); + dfu[8] = (unsigned char)(tmp>>16 & 0xFF); + dfu[9] = (unsigned char)(tmp>>24 & 0xFF); + dfu[10] = 1; //bTargets + + + //DFU Image + c = 11; + memmove(dfu+c, "Target", 6); //szSignature 'Target' + c += 6; + dfu[c++] = 0x00; //bAlternateSettings //to check + if (tar0_lab) { + dfu[c] = 0x01; //bTargetNamed + memmove(dfu+c+4, tar0_lab, strlen(tar0_lab)>254?254:strlen(tar0_lab)); //szTargetName + } else { + dfu[c] = 0x01; //place default target name + memmove(dfu+c+4, TARGET_NAME_ENCEDO, strlen(TARGET_NAME_ENCEDO)); + } + c += 259; + tmp = 8 + tar0_len; //ImageElement length (8+bin_data) + dfu[c++] = tmp & 0xFF; //dwTargetSize + dfu[c++] = tmp>>8 & 0xFF; + dfu[c++] = tmp>>16 & 0xFF; + dfu[c++] = tmp>>24 & 0xFF; + dfu[c] = 0x01; //dwNbElements + c += 4; + + //Image Element + dfu[c++] = tar0_start_address & 0xFF; //dwElementAddress + dfu[c++] = tar0_start_address>>8 & 0xFF; + dfu[c++] = tar0_start_address>>16 & 0xFF; + dfu[c++] = tar0_start_address>>24 & 0xFF; + dfu[c++] = tar0_len & 0xFF; //dwElementSize + dfu[c++] = tar0_len>>8 & 0xFF; + dfu[c++] = tar0_len>>16 & 0xFF; + dfu[c++] = tar0_len>>24 & 0xFF; + memmove(dfu+c, tar0_buf, tar0_len); + + //DFU Suffix + c = dfu_len - 16; + dfu[c++] = ver & 0xFF; //bcdDeviceLo + dfu[c++] = ver>>8 & 0xFF; + dfu[c++] = pid & 0xFF; //idProductLo + dfu[c++] = pid>>8 & 0xFF; + dfu[c++] = vid & 0xFF; //idVendorLo + dfu[c++] = vid>>8 & 0xFF; + dfu[c++] = 0x1A; //bcdDFULo + dfu[c++] = 0x01; + dfu[c++] = 'U'; //ucDfuSignature + dfu[c++] = 'F'; + dfu[c++] = 'D'; + dfu[c++] = 16; //bLength + crc = 0xFFFFFFFF & -crc32(0, dfu, c) - 1 ; + dfu[c++] = crc>>0 & 0xFF; //dwCRC + dfu[c++] = crc>>8 & 0xFF; + dfu[c++] = crc>>16 & 0xFF; + dfu[c++] = crc>>24 & 0xFF; + + + //write DFU to file + outFile = fopen (out_fn, "wb"); + c = fwrite (dfu, dfu_len, 1, outFile); + fclose(outFile); + if (c != 1) { + printf ("error: write to output file\n"); + } + printf("Done.\r\n"); + } + } else { + printf ("error: processing input file\n"); + } + + return 0; +} + +void print_help(void) { + printf("STM32 hex2dfu version 1.0\r\n"); + printf("(c) Encedo Ltd 2013-2014\r\n"); + printf("Options:\r\n"); + printf("-c - place CRC23 under this addres (optional)\r\n"); + printf("-d - file version number (optional, default: 0xFFFF)\r\n"); + printf("-h - help\r\n"); + printf("-i - Target0 HEX file name (mandatory)\r\n"); + printf("-l - Target0 name (optional, default: EncedoKey)\r\n"); + printf("-o - output DFU file name (mandatory)\r\n"); + printf("-p - USB Pid (optional, default: 0xDF11)\r\n"); + printf("-v - USB Vid (optional, default: 0x0483)\r\n"); + printf("Example: hex2dfu -i infile.hex -i outfile.dfu\r\n"); +} + + +int hex2bin(unsigned char *obuf, const char *ibuf, int len) { + unsigned char c, c2; + + len = len / 2; + while (*ibuf != 0) { + c = *ibuf++; + if( c >= '0' && c <= '9' ) + c -= '0'; + else if( c >= 'a' && c <= 'f' ) + c -= 'a' - 10; + else if( c >= 'A' && c <= 'F' ) + c -= 'A' - 10; + else + return -1; + + c2 = *ibuf++; + if( c2 >= '0' && c2 <= '9' ) + c2 -= '0'; + else if( c2 >= 'a' && c2 <= 'f' ) + c2 -= 'a' - 10; + else if( c2 >= 'A' && c2 <= 'F' ) + c2 -= 'A' - 10; + else + return -1; + + *obuf++ = ( c << 4 ) | c2; + } + return len; +} + +int check_checksum(unsigned char *inbuf, int len) { + unsigned int check = 0; + while(len--) { + check += *inbuf++; + } + return check & 0xFF; +} + + +// more details: http://en.wikipedia.org/wiki/Intel_HEX +unsigned char *ihex2bin_buf(unsigned int *start_address, int *dst_len, FILE *inFile) { + unsigned int lines = 0, total = 0, oneline_len, elar = 0, pos, cnt; + unsigned char oneline [512], raw[256], start_set = 0, *dst = NULL; + + *dst_len = 1024*128; + dst = malloc(*dst_len); //allocate 129kB of memory for bin data buffer + if (dst == NULL) { + *dst_len = -2; + return NULL; + } + + *start_address = 0; + while ( fgets (oneline, sizeof(oneline), inFile) != NULL ) { + if (oneline[0] == ':') { //is valid record? + oneline_len = strlen(oneline)-2; //get line length + hex2bin(raw, oneline+1, oneline_len); //convert to bin + if (check_checksum(raw, oneline_len/2) == 0) { //check cheksum validity + if ((raw[0] == 2) && (raw[1] == 0) && (raw[2] == 0) && (raw[3] == 4)) { //> Extended Linear Address Record :020000040803EF + elar = (unsigned int)raw[4]<<24 | (unsigned int) raw[5]<<16; //gen new address offset + } else + if ((raw[0] == 0) && (raw[1] == 0) && (raw[2] == 0) && (raw[3] == 1)) { //>End Of File record :00000001FF + *dst_len = total; //return total size of bin data && start address + return dst; + } else + if (raw[3] == 0) { //>Data record - process + if (start_set==0) { + *start_address = elar; //set it as new start addres - only possible for first data record + start_set = 1; //only once - this is start address of thye binary data + } + pos = elar + ( (unsigned int)raw[1]<<8 | (unsigned int)raw[2] ); //get start address of this chunk + pos -= *start_address; + cnt = raw[0]; //get chunk size/length + if (pos+cnt > *dst_len) { //enlarge buffer if required + unsigned char *dst_new = realloc(dst, *dst_len + 8192); //add 8kB of new space + if (dst_new == NULL) { + *dst_len = -2; //allocation error - exit + free(dst); + return NULL; + } else { + *dst_len += 8192; + dst = dst_new; //allocation succesed - copy new pointer + } + } + memmove(dst+pos, raw+4, cnt); + if (pos+cnt > total) { //set new total variable + total = pos+cnt; //tricky way - file can be none linear! + } + } + } else { + *dst_len = -1; //checksum error - exit + return NULL; + } + } + lines++; //not a IntelHex line - comment? + } + *dst_len = -3; //fatal error - no valid intel hex file processed + free(dst); + return NULL; +} + +/* +//maybe usefull - stay here for future + +int ihex2bin(FILE * outFile, FILE *inFile) { + unsigned int total = 0, oneline_len, elar = 0, start = 0xFFFFFFFF, pos, cnt; + unsigned char oneline [512], raw[256]; + + while ( fgets (oneline , sizeof(oneline) , inFile) != NULL ) { + //puts (oneline); + if (oneline[0] == ':') { + oneline_len = strlen(oneline)-2; + hex2bin(raw, oneline+1, oneline_len); + if (check_checksum(raw, oneline_len/2) == 0) { + if ((raw[0] == 2) && (raw[1] == 0) && (raw[2] == 0) && (raw[3] == 4)) { //:020000040803EF + elar = (unsigned int)raw[4]<<24 | (unsigned int) raw[5]<<16; + if (start == 0xFFFFFFFF) { + start = elar; + } + } else + if ((raw[0] == 0) && (raw[1] == 0) && (raw[2] == 0) && (raw[3] == 1)) { //:00000001FF + return start; + } else + if (raw[3] == 0) { //data + pos = elar + ( (unsigned int)raw[1]<<8 | (unsigned int)raw[2] ); + cnt = raw[0]; + fseek ( outFile, pos-start, SEEK_SET ); + fwrite (raw+4 , sizeof(unsigned char), cnt, outFile); + if (pos+cnt > total) + total = pos+cnt; + } + } else { + return -1; + } + } + } + return total; +} +*/ + +const unsigned int crc32_tab[] = { + 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, + 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, + 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, + 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, + 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, + 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, + 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, + 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, + 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, + 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, + 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, + 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, + 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, + 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, + 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, + 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, + 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, + 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, + 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, + 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, + 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, + 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, + 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, + 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, + 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, + 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, + 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, + 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, + 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, + 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, + 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, + 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, + 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, + 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, + 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, + 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, + 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, + 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, + 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, + 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, + 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, + 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, + 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d +}; + + +unsigned int crc32(unsigned int crc, const void *buf, size_t size) { + const unsigned char *p; + + p = buf; + crc = crc ^ ~0U; + + while (size--) + crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8); + + return crc ^ ~0U; +} +