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preset stable and try* flags for TRX2 headers

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* changed addpattern.c to preset the stable and try flags used in TRXv2 images
to dupe CFE and pretend a stable image.
* changed trx.c to calculate TRXv2 CRC with stable and try flags set to 0xFF
like CFE does on startup
* fixed compile warnings in trx.c by explicit casting



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22012 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
markus 2010-07-01 10:40:22 +00:00
parent 134e9e7bf3
commit 0df7081ccd
2 changed files with 22 additions and 4 deletions
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6
tools/firmware-utils/src/addpattern.c
View File

@ -205,8 +205,10 @@ int main(int argc, char **argv)
break; break;
case '5': case '5':
/* V5 is appended to trxV2 image */ /* V5 is appended to trxV2 image */
hdr->stable[0] = hdr->stable[1] = 0xFF; hdr->stable[0] = 0x73; // force image to be stable
hdr->try1[0] = hdr->try1[1] = 0xFF; hdr->stable[1] = 0x00;
hdr->try1[0] = 0x74; // force try1 to be set
hdr->try1[1] = 0x00;
hdr->try2[0] = hdr->try2[1] = 0xFF; hdr->try2[0] = hdr->try2[1] = 0xFF;
hdr->try3[0] = hdr->try3[1] = 0xFF; hdr->try3[0] = hdr->try3[1] = 0xFF;
break; break;

20
tools/firmware-utils/src/trx.c
View File

@ -102,6 +102,7 @@ int main(int argc, char **argv)
unsigned long maxlen = TRX_MAX_LEN; unsigned long maxlen = TRX_MAX_LEN;
struct trx_header *p; struct trx_header *p;
char trx_version = 1; char trx_version = 1;
unsigned char binheader[32];
fprintf(stderr, "mjn3's trx replacement - v0.81.1\n"); fprintf(stderr, "mjn3's trx replacement - v0.81.1\n");
@ -213,7 +214,7 @@ int main(int argc, char **argv)
usage(); usage();
} }
if (n < cur_len) { if (n < cur_len) {
fprintf(stderr, "WARNING: current length exceeds -b %d offset\n",n); fprintf(stderr, "WARNING: current length exceeds -b %d offset\n",(int) n);
} else { } else {
memset(buf + cur_len, 0, n - cur_len); memset(buf + cur_len, 0, n - cur_len);
cur_len = n; cur_len = n;
@ -228,7 +229,7 @@ int main(int argc, char **argv)
} }
if (n2 < 0) { if (n2 < 0) {
if (-n2 > cur_len) { if (-n2 > cur_len) {
fprintf(stderr, "WARNING: current length smaller then -x %d offset\n",n2); fprintf(stderr, "WARNING: current length smaller then -x %d offset\n",(int) n2);
cur_len = 0; cur_len = 0;
} else } else
cur_len += n2; cur_len += n2;
@ -257,12 +258,27 @@ int main(int argc, char **argv)
cur_len += ROUND - n; cur_len += ROUND - n;
} }
/* for TRXv2 set bin-header Flags to 0xFF for CRC calculation like CFE does */
if (trx_version == 2) {
if(cur_len - p->offsets[3] < sizeof(binheader)) {
fprintf(stderr, "TRXv2 binheader too small!\n");
return EXIT_FAILURE;
}
memcpy(binheader, buf + p->offsets[3], sizeof(binheader)); /* save header */
memset(buf + p->offsets[3] + 22, 0xFF, 8); /* set stable and try1-3 to 0xFF */
}
p->crc32 = crc32buf((char *) &p->flag_version, p->crc32 = crc32buf((char *) &p->flag_version,
cur_len - offsetof(struct trx_header, flag_version)); cur_len - offsetof(struct trx_header, flag_version));
p->crc32 = STORE32_LE(p->crc32); p->crc32 = STORE32_LE(p->crc32);
p->len = STORE32_LE(cur_len); p->len = STORE32_LE(cur_len);
/* restore TRXv2 bin-header */
if (trx_version == 2) {
memcpy(buf + p->offsets[3], binheader, sizeof(binheader));
}
if (!fwrite(buf, cur_len, 1, out) || fflush(out)) { if (!fwrite(buf, cur_len, 1, out) || fflush(out)) {
fprintf(stderr, "fwrite failed\n"); fprintf(stderr, "fwrite failed\n");
return EXIT_FAILURE; return EXIT_FAILURE;