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firmware-utils: fix endianness bugs in firmware generation program.

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Should make it work on big endian systems again, I do not have such a system.

This closes #9093.

SVN-Revision: 26543
This commit is contained in:
Hauke Mehrtens 2011-04-09 15:06:01 +00:00
parent cdd51194ca
commit 869fb691ec
1 changed files with 29 additions and 12 deletions
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41
tools/firmware-utils/src/trx2edips.c
View file

@ -5,6 +5,17 @@
#include <string.h>
#include <errno.h>
#include <unistd.h>
#if __BYTE_ORDER == __BIG_ENDIAN
#define STORE32_LE(X) bswap_32(X)
#define LOAD32_LE(X) bswap_32(X)
#elif __BYTE_ORDER == __LITTLE_ENDIAN
#define STORE32_LE(X) (X)
#define LOAD32_LE(X) (X)
#else
#error unkown endianness!
#endif
/**********************************************************************/
/* from trxhdr.h */
@ -22,6 +33,12 @@ struct trx_header {
};
struct edimax_header {
uint32_t sign; /* signature for header */
uint32_t length; /* start address but doesn't seems to be used... */
uint32_t start_addr; /* length of data, not used too ...*/
};
#define EDIMAX_PS16 0x36315350 /* "PS16" */
#define EDIMAX_HDR_LEN 0xc
@ -93,16 +110,13 @@ int main(int argc, char *argv[])
{
FILE *fpIn = NULL;
FILE *fpOut = NULL;
long nImgSize;
uint32_t sign = EDIMAX_PS16; /* signature for header */
uint32_t start_addr = 0x80500000; /* start address but doesn't seems to be used... */
uint32_t length; /* length of data, not used too ...*/
struct edimax_header eh;
size_t res;
int length;
char *buf;
struct trx_header *p;
if (argc != 3) {
printf("Usage: %s <input file> <output file>\n", argv[0]);
return -1;
@ -128,8 +142,8 @@ int main(int argc, char *argv[])
res = fread(buf, 1, length, fpIn);
p = (struct trx_header *)buf;
if (p->magic != TRX_MAGIC) {
fprintf(stderr, "Not a trx file...%x\n", p->magic);
if (LOAD32_LE(p->magic) != TRX_MAGIC) {
fprintf(stderr, "Not a trx file...%x\n", LOAD32_LE(p->magic));
return EXIT_FAILURE;
}
@ -141,13 +155,16 @@ int main(int argc, char *argv[])
return EXIT_FAILURE;
}
/* make the 3 partition beeing 12 bytes closer from the header */
memcpy(buf + p->offsets[2] - EDIMAX_HDR_LEN, buf + p->offsets[2], length - p->offsets[2]);
memcpy(buf + LOAD32_LE(p->offsets[2]) - EDIMAX_HDR_LEN, buf + LOAD32_LE(p->offsets[2]), length - LOAD32_LE(p->offsets[2]));
/* recompute the crc32 check */
p->crc32 = crc32buf((char *) &p->flag_version, length - offsetof(struct trx_header, flag_version));
p->crc32 = STORE32_LE(crc32buf((char *) &(LOAD32_LE(p->flag_version)), length - offsetof(struct trx_header, flag_version)));
eh.sign = STORE32_LE(EDIMAX_PS16);
eh.length = STORE32_LE(length);
eh.start_addr = STORE32_LE(0x80500000);
/* write the modified file */
fwrite(&sign, sizeof(uint32_t), 1, fpOut);
fwrite(&length, sizeof(uint32_t), 1, fpOut);
fwrite(&start_addr, sizeof(uint32_t), 1, fpOut);
fwrite(&eh, sizeof(struct edimax_header), 1, fpOut);
fwrite(buf, sizeof(char), length, fpOut);
fclose(fpOut);
}