firmware-utils: mkedimaximg: add "big-endianness mode" option
In addition to the default little-endianness format, I added a mode so that we can generate firmware with big-endianness format. example: ELECOM WRC-300GHBK2-I (QCA9563) Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
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628eb271dc
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1 changed files with 35 additions and 8 deletions
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@ -17,12 +17,19 @@
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#include <sys/stat.h>
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#include <endian.h> /* for __BYTE_ORDER */
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#define FALSE 0
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#define TRUE 1
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#if (__BYTE_ORDER == __LITTLE_ENDIAN)
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# define HOST_TO_LE16(x) (x)
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# define HOST_TO_LE32(x) (x)
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# define HOST_TO_BE16(x) bswap_16(x)
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# define HOST_TO_BE32(x) bswap_32(x)
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#else
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# define HOST_TO_LE16(x) bswap_16(x)
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# define HOST_TO_LE32(x) bswap_32(x)
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# define HOST_TO_BE16(x) (x)
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# define HOST_TO_BE32(x) (x)
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#endif
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struct header
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@ -47,6 +54,7 @@ struct buf
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};
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static char *progname;
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static int force_be = FALSE;
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static void usage(int status)
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{
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@ -61,7 +69,8 @@ static void usage(int status)
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" -i <file> read input from file <file>\n"
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" -o <file> write output to file <file>\n"
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" -f <flash> set flash address to <flash>\n"
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" -S <start> set start address to <start>\n");
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" -S <start> set start address to <start>\n"
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" -b big-endianness mode\n");
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exit(status);
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}
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@ -83,8 +92,12 @@ static unsigned short fwcsum (struct buf *buf) {
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int i;
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unsigned short ret = 0;
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for (i = 0; i < buf->size / 2; i++)
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ret -= ((unsigned short *) buf->start)[i];
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for (i = 0; i < buf->size / 2; i++) {
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if (force_be == FALSE)
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ret -= ((unsigned short *) buf->start)[i];
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else
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ret -= HOST_TO_BE16(((unsigned short *) buf->start)[i]);
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}
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return ret;
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}
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@ -144,7 +157,7 @@ int main(int argc, char **argv)
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header.flash = header.size = header.start = 0;
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progname = basename(argv[0]);
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while((c = getopt(argc, argv, "i:o:m:s:f:S:h")) != -1) {
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while((c = getopt(argc, argv, "i:o:m:s:f:S:h:b")) != -1) {
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switch (c) {
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case 'i':
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ifinfo.name = optarg;
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@ -181,6 +194,9 @@ int main(int argc, char **argv)
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usage(EXIT_FAILURE);
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}
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break;
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case 'b':
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force_be = TRUE;
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break;
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default:
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usage(EXIT_FAILURE);
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break;
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@ -241,12 +257,23 @@ int main(int argc, char **argv)
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if (fwread(&ifinfo, &ibuf))
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usage(EXIT_FAILURE);
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header.flash = HOST_TO_LE32(header.flash);
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header.size = HOST_TO_LE32(obuf.size - sizeof(struct header));
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header.start = HOST_TO_LE32(header.start);
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if (force_be == FALSE) {
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header.flash = HOST_TO_LE32(header.flash);
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header.size = HOST_TO_LE32(obuf.size - sizeof(struct header));
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header.start = HOST_TO_LE32(header.start);
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} else {
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header.flash = HOST_TO_BE32(header.flash);
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header.size = HOST_TO_BE32(obuf.size - sizeof(struct header));
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header.start = HOST_TO_BE32(header.start);
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}
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memcpy (obuf.start, &header, sizeof(struct header));
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csum = HOST_TO_LE16(fwcsum(&ibuf));
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if (force_be == FALSE)
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csum = HOST_TO_LE16(fwcsum(&ibuf));
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else
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csum = HOST_TO_BE16(fwcsum(&ibuf));
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memcpy(obuf.start + obuf.size - sizeof(unsigned short),
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&csum, sizeof(unsigned short));
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