diff options
Diffstat (limited to 'sys/dev/microcode/bcw/build/build.c')
| -rw-r--r-- | sys/dev/microcode/bcw/build/build.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/sys/dev/microcode/bcw/build/build.c b/sys/dev/microcode/bcw/build/build.c new file mode 100644 index 00000000000..1413cb32964 --- /dev/null +++ b/sys/dev/microcode/bcw/build/build.c @@ -0,0 +1,160 @@ +/* $OpenBSD: build.c,v 1.1 2007/01/06 18:31:47 mglocker Exp $ */ + +/* + * Copyright (c) 2006 Marcus Glocker <mglocker@openbsd.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <sys/types.h> +#include <sys/stat.h> + +#include <err.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +//#define VERBOSE 1 +#define FILENAME "bcw-bcm43xx" + +struct header { + char filename[64]; + int filesize; + int fileoffset; +}; + +int +main(int argc, char *argv[]) +{ + void *p; + int i, j, offset; + int fdout, fdin; + int nfiles, headersize; + int fwsize, totalsize; + struct header h[argc - 1]; + struct stat s; + + if (argc < 2) { + printf("%s <firmware files>\n", argv[0]); + exit(1); + } + + nfiles = argc - 1; /* number of firmware files */ + headersize = sizeof(h) + sizeof(nfiles); /* size of file header */ + + /* initialize header struct */ + for (i = 1, j = 0, fwsize = 0; i < argc; i++, j++) { + bzero(h[j].filename, sizeof(h[j].filename)); + strlcpy(h[j].filename, argv[i], sizeof(h[j].filename)); + + if (stat(h[j].filename, &s) == -1) + err(1, "header initialization failed"); + + h[j].filesize = s.st_size; + h[j].fileoffset = 0; + + fwsize += h[j].filesize; +#ifdef VERBOSE + printf("create header entry for %s (%d bytes)\n", + h[j].filename, h[j].filesize); +#endif + } + + /* calculate total file size */ + totalsize = headersize + fwsize; +#if VERBOSE + printf("\n"); + printf("header size = %d bytes, ", headersize); + printf("fw size = %d bytes, ", fwsize); + printf("total file size = %d bytes\n", totalsize); + printf("\n"); +#endif + + /* calculating firmware offsets */ + for (i = 0, offset = headersize; i < nfiles; i++) { + h[i].fileoffset = offset; + offset += h[i].filesize; +#ifdef VERBOSE + printf("offset of %s = %d\n", h[i].filename, h[i].fileoffset); +#endif + } + + /* open output file */ + if ((fdout = open(FILENAME, O_CREAT|O_TRUNC|O_RDWR, 0644)) == -1) + err(1, "open output file failed"); + + /* host to network byte order */ + for (i = 0; i < nfiles; i++) { + h[i].filesize = htonl(h[i].filesize); + h[i].fileoffset = htonl(h[i].fileoffset); + } + nfiles = htonl(nfiles); + + /* write header */ + if (write(fdout, &nfiles, sizeof(nfiles)) < 1) { + close(fdout); + err(1, "write header 1 to output file failed\n"); + } + if (write(fdout, h, headersize - sizeof(nfiles)) < 1) { + close(fdout); + err(1, "write header 2 to output file failed\n"); + } + + /* network to host byte order */ + nfiles = ntohl(nfiles); + for (i = 0; i < nfiles; i++) { + h[i].filesize = ntohl(h[i].filesize); + h[i].fileoffset = ntohl(h[i].fileoffset); + } + + /* write each file */ + for (i = 0; i < nfiles; i++) { + if ((fdin = open(h[i].filename, O_RDONLY)) == -1) { + close(fdout); + err(1, "open input file failed\n"); + } + if ((p = malloc(h[i].filesize)) == NULL) { + close(fdout); + close(fdin); + err(1, "malloc"); + } + if (read(fdin, p, h[i].filesize) < 1) { + free(p); + close(fdout); + close(fdin); + err(1, "read input file failed\n"); + } + if (write(fdout, p, h[i].filesize) < 1) { + free(p); + close(fdout); + close(fdin); + err(1, "write to output file failed\n"); + } + free(p); + close(fdin); + } + + close(fdout); + +#ifdef VERBOSE + printf("\n"); +#endif + + /* game over */ + printf("wrote %d files to %s (%d bytes).\n", + nfiles, FILENAME, totalsize); + + return (0); +} |