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util/kbc1126: Refactor kbc1126_ec_insert 

Add support for setting addresses of blobs only, and using address in
memory when ROM is mapped

Change-Id: I053c55253eee00558071d15923e3eb17b1e8410c
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/20474
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Iru Cai 2017-07-06 00:04:47 +08:00 committed by Martin Roth
parent dcf99b0445
commit 4225493159
1 changed files with 68 additions and 30 deletions
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78
util/kbc1126/kbc1126_ec_insert.c
View File

@ -18,7 +18,18 @@
static void usage(const char *s) static void usage(const char *s)
{ {
printf("%s <rom file> <fw1> <fw2> <fw1 offset> <fw2 offset>\n", s); printf("insert firmware blobs:\n\t"
"%s <rom file> <fw1> <fw2> <fw1 offset> <fw2 offset>\n\n",
s);
printf("set addresses of firmware blobs only:\n\t"
"%s <rom file> <fw1 offset> <fw2 offset>\n\n",
s);
printf(
"offset can be (example is put it to 0x7ffa00 when ROM is 8MB):\n"
"- file offset: 0x7ffa00\n"
"- distance to the end of file: -0x600\n"
"- the address when ROM is mapped to the end of memory: "
"0xfffffa00\n");
exit(1); exit(1);
} }
@ -30,21 +41,49 @@ static void FseekEnd(FILE *fp, long o)
} }
} }
static long negoffset(long a, long romsz)
{
if (a > 0) {
if (a & 0x80000000) /* the address in memory, and sizeof(long)
is 8 */
return a - 0x100000000;
else /* the file offset */
return a - romsz;
} else {
return a;
}
}
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
if (argc < 6) FILE *fp, *fw1, *fw2;
long offset1, offset2;
if (argc != 4 && argc != 6)
usage(argv[0]); usage(argv[0]);
FILE *fp = fopen(argv[1], "rb+"); fp = fopen(argv[1], "rb+");
FILE *fw1 = fopen(argv[2], "rb"); if (fp == NULL) {
FILE *fw2 = fopen(argv[3], "rb"); puts("Error opening firmware image!");
long offset1 = strtol(argv[4], NULL, 0); exit(1);
long offset2 = strtol(argv[5], NULL, 0); }
if (fp == NULL || fw1 == NULL || fw2 == NULL) { if (argc == 6) {
fw1 = fopen(argv[2], "rb");
fw2 = fopen(argv[3], "rb");
offset1 = strtoul(argv[4], NULL, 0);
offset2 = strtoul(argv[5], NULL, 0);
if (fw1 == NULL || fw2 == NULL) {
puts("Error opening file!"); puts("Error opening file!");
exit(1); exit(1);
} }
} else {
fw1 = NULL;
fw2 = NULL;
offset1 = strtoul(argv[2], NULL, 0);
offset2 = strtoul(argv[3], NULL, 0);
}
if ((offset1 & 0xff) || (offset2 & 0xff)) { if ((offset1 & 0xff) || (offset2 & 0xff)) {
puts("The offsets must be aligned to 0x100"); puts("The offsets must be aligned to 0x100");
@ -61,11 +100,8 @@ int main(int argc, char *argv[])
exit(1); exit(1);
} }
if (offset1 > 0) offset1 = negoffset(offset1, romsz);
offset1 = offset1 - romsz; offset2 = negoffset(offset2, romsz);
if (offset2 > 0)
offset2 = offset2 - romsz;
/* write two offsets to $s-0x100 */ /* write two offsets to $s-0x100 */
char offs[8]; char offs[8];
@ -80,29 +116,31 @@ int main(int argc, char *argv[])
offs[5] = os >> 8; offs[5] = os >> 8;
offs[6] = 0xff - offs[4]; offs[6] = 0xff - offs[4];
offs[7] = 0xff - offs[5]; offs[7] = 0xff - offs[5];
for (size_t i = 0; i < 8; i++) { for (size_t i = 0; i < 8; i++)
printf("%02hhx ", offs[i]); printf("%02hhx ", offs[i]);
}
puts(""); puts("");
FseekEnd(fp, -0x100); FseekEnd(fp, -0x100);
printf("writing to 0x%lx\n", ftell(fp)); printf("writing to 0x%lx\n", ftell(fp));
fwrite(offs, 1, 8, fp); fwrite(offs, 1, 8, fp);
if (argc == 6) {
/* write fw1 and fw2 */ /* write fw1 and fw2 */
char c; char c;
FseekEnd(fp, offset1); FseekEnd(fp, offset1);
printf("writing to 0x%lx\n", ftell(fp)); printf("writing to 0x%lx\n", ftell(fp));
while (fread(&c, 1, 1, fw1) == 1) { while (fread(&c, 1, 1, fw1) == 1)
fwrite(&c, 1, 1, fp); fwrite(&c, 1, 1, fp);
}
FseekEnd(fp, offset2); FseekEnd(fp, offset2);
printf("writing to 0x%lx\n", ftell(fp)); printf("writing to 0x%lx\n", ftell(fp));
while (fread(&c, 1, 1, fw2) == 1) { while (fread(&c, 1, 1, fw2) == 1)
fwrite(&c, 1, 1, fp); fwrite(&c, 1, 1, fp);
fclose(fw1);
fclose(fw2);
} }
fclose(fp); fclose(fp);
fclose(fw1);
fclose(fw2);
return 0; return 0;
} }