From c41fbbc115a5f16a61cf16419a8fe70ab5d00bdd Mon Sep 17 00:00:00 2001 From: nbd Date: Wed, 6 Dec 2006 23:41:38 +0000 Subject: move target/utils to tools/firmware-utils git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5702 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- tools/firmware-utils/src/motorola-bin.c | 146 ++++++++++++++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 tools/firmware-utils/src/motorola-bin.c (limited to 'tools/firmware-utils/src/motorola-bin.c') diff --git a/tools/firmware-utils/src/motorola-bin.c b/tools/firmware-utils/src/motorola-bin.c new file mode 100644 index 000000000..acf856dde --- /dev/null +++ b/tools/firmware-utils/src/motorola-bin.c @@ -0,0 +1,146 @@ +/* + * motorola-bin.c + * + * Copyright (C) 2005-2006 Mike Baker, + * Imre Kaloz + * OpenWrt.org + * + * $Id$ + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ + +/* + * February 1, 2006 + * + * Add support for for creating WA840G and WE800G images + */ + +#include +#include +#include +#include +#include +#include +#include + +unsigned long *crc32; + +void init_crc32() +{ + unsigned long crc; + unsigned long poly = ntohl(0x2083b8ed); + int n, bit; + if ((crc32 = (unsigned long *) malloc(256 * sizeof(unsigned long))) == (void *)-1) { + perror("malloc"); + exit(1); + } + for (n = 0; n < 256; n++) { + crc = (unsigned long) n; + for (bit = 0; bit < 8; bit++) + crc = (crc & 1) ? (poly ^ (crc >> 1)) : (crc >> 1); + crc32[n] = crc; + } +} + +unsigned int crc32buf(char *buf, size_t len) +{ + unsigned int crc = 0xFFFFFFFF; + for (; len; len--, buf++) + crc = crc32[(crc ^ *buf) & 0xff] ^ (crc >> 8); + return crc; +} + +struct motorola { + unsigned int crc; // crc32 of the remainder + unsigned int flags; // unknown, 105770* + char *trx; // standard trx +}; + +void usage(void) __attribute__ (( __noreturn__ )); + +void usage(void) +{ + printf("Usage: motorola-bin [-device] [trxfile] [binfile]\n\n"); + printf("Known devices: 1 - WR850G | 2 - WA840G | 3 - WE800G\n"); + exit(1); +} + +int main(int argc, char **argv) +{ + unsigned int len; + int fd; + int c; + void *trx; + struct motorola *firmware; + + // verify parameters + + if (argc!=4) + { + usage(); + } + + // mmap trx file + if (((fd = open(argv[2], O_RDONLY)) < 0) + || ((len = lseek(fd, 0, SEEK_END)) < 0) + || ((trx = mmap(0, len, PROT_READ, MAP_SHARED, fd, 0)) == (void *) (-1)) + || (close(fd) < 0)) { + perror("open/malloc"); + exit(1); + } + + // create a firmware image in memory + // and copy the trx to it + firmware = malloc(len+8); + memcpy(&firmware->trx,trx,len); + munmap(trx,len); + + // setup the motorola headers + init_crc32(); + + // setup the firmware magic + + while ((c = getopt(argc, argv, "123")) !=-1) { + switch (c) { + case '1': + firmware->flags = ntohl(0x10577050); // Motorola WR850G + break; + case '2': + firmware->flags = ntohl(0x10577040); // Motorola WA840G + break; + case '3': + firmware->flags = ntohl(0x10577000); // Motorola WE800G + break; + default: + usage(); + } + } + + firmware->crc = htonl(crc32buf((char *)&firmware->flags,len+4)); + + // write the firmware + if (((fd = open(argv[3], O_CREAT|O_WRONLY,0644)) < 0) + || (write(fd,firmware,len+8) != len+8) + || (close(fd) < 0)) { + perror("write"); + exit(-1); + } + + free(firmware); + + return 0; +} -- cgit v1.2.3