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path: root/util/kbc1126/kbc1126_ec_insert.c
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Diffstat (limited to 'util/kbc1126/kbc1126_ec_insert.c')
-rw-r--r--util/kbc1126/kbc1126_ec_insert.c98
1 files changed, 68 insertions, 30 deletions
diff --git a/util/kbc1126/kbc1126_ec_insert.c b/util/kbc1126/kbc1126_ec_insert.c
index 6c19c0e97f..64d1295c96 100644
--- a/util/kbc1126/kbc1126_ec_insert.c
+++ b/util/kbc1126/kbc1126_ec_insert.c
@@ -18,7 +18,18 @@
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);
}
@@ -30,22 +41,50 @@ 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[])
{
- if (argc < 6)
- usage(argv[0]);
+ FILE *fp, *fw1, *fw2;
+ long offset1, offset2;
- FILE *fp = fopen(argv[1], "rb+");
- FILE *fw1 = fopen(argv[2], "rb");
- FILE *fw2 = fopen(argv[3], "rb");
- long offset1 = strtol(argv[4], NULL, 0);
- long offset2 = strtol(argv[5], NULL, 0);
+ if (argc != 4 && argc != 6)
+ usage(argv[0]);
- if (fp == NULL || fw1 == NULL || fw2 == NULL) {
- puts("Error opening file!");
+ fp = fopen(argv[1], "rb+");
+ if (fp == NULL) {
+ puts("Error opening firmware image!");
exit(1);
}
+ 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!");
+ exit(1);
+ }
+ } else {
+ fw1 = NULL;
+ fw2 = NULL;
+ offset1 = strtoul(argv[2], NULL, 0);
+ offset2 = strtoul(argv[3], NULL, 0);
+ }
+
if ((offset1 & 0xff) || (offset2 & 0xff)) {
puts("The offsets must be aligned to 0x100");
exit(1);
@@ -61,11 +100,8 @@ int main(int argc, char *argv[])
exit(1);
}
- if (offset1 > 0)
- offset1 = offset1 - romsz;
-
- if (offset2 > 0)
- offset2 = offset2 - romsz;
+ offset1 = negoffset(offset1, romsz);
+ offset2 = negoffset(offset2, romsz);
/* write two offsets to $s-0x100 */
char offs[8];
@@ -80,29 +116,31 @@ int main(int argc, char *argv[])
offs[5] = os >> 8;
offs[6] = 0xff - offs[4];
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]);
- }
+
puts("");
FseekEnd(fp, -0x100);
printf("writing to 0x%lx\n", ftell(fp));
fwrite(offs, 1, 8, fp);
- /* write fw1 and fw2 */
- char c;
- FseekEnd(fp, offset1);
- printf("writing to 0x%lx\n", ftell(fp));
- while (fread(&c, 1, 1, fw1) == 1) {
- fwrite(&c, 1, 1, fp);
- }
- FseekEnd(fp, offset2);
- printf("writing to 0x%lx\n", ftell(fp));
- while (fread(&c, 1, 1, fw2) == 1) {
- fwrite(&c, 1, 1, fp);
+ if (argc == 6) {
+ /* write fw1 and fw2 */
+ char c;
+ FseekEnd(fp, offset1);
+ printf("writing to 0x%lx\n", ftell(fp));
+ while (fread(&c, 1, 1, fw1) == 1)
+ fwrite(&c, 1, 1, fp);
+
+ FseekEnd(fp, offset2);
+ printf("writing to 0x%lx\n", ftell(fp));
+ while (fread(&c, 1, 1, fw2) == 1)
+ fwrite(&c, 1, 1, fp);
+
+ fclose(fw1);
+ fclose(fw2);
}
fclose(fp);
- fclose(fw1);
- fclose(fw2);
return 0;
}