From: Michael Buesch Date: Sun, 19 Sep 2010 14:58:25 +0000 (+0200) Subject: Add script for brcm80211 firmware conversion X-Git-Tag: b43-fwcutter-014~46 X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;h=cda7a69307d808c09e08806563d3fed050f2f4d4;p=b43-tools.git Add script for brcm80211 firmware conversion Signed-off-by: Michael Buesch --- diff --git a/disassembler/brcm80211conv b/disassembler/brcm80211conv new file mode 100755 index 0000000..0d2628b --- /dev/null +++ b/disassembler/brcm80211conv @@ -0,0 +1,194 @@ +#!/usr/bin/env python +""" +# Copyright (C) 2010 Michael Buesch +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 +# as published by the Free Software Foundation. +# +# 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. +""" + +import sys +import getopt + +def indexToName(index): + D11UCODE_NAMETAG_START = 0 + D11LCN0BSINITVALS24 = 1 + D11LCN0INITVALS24 = 2 + D11LCN1BSINITVALS24 = 3 + D11LCN1INITVALS24 = 4 + D11LCN2BSINITVALS24 = 5 + D11LCN2INITVALS24 = 6 + D11N0ABSINITVALS16 = 7 + D11N0BSINITVALS16 = 8 + D11N0INITVALS16 = 9 + D11UCODE_OVERSIGHT16_MIMO = 10 + D11UCODE_OVERSIGHT16_MIMOSZ = 11 + D11UCODE_OVERSIGHT24_LCN = 12 + D11UCODE_OVERSIGHT24_LCNSZ = 13 + D11UCODE_OVERSIGHT_BOMMAJOR = 14 + D11UCODE_OVERSIGHT_BOMMINOR = 15 + + namemap = { + D11UCODE_NAMETAG_START : "start", + D11LCN0BSINITVALS24 : "LCN0 bs initvals 24", + D11LCN0INITVALS24 : "LCN0 initvals 24", + D11LCN1BSINITVALS24 : "LCN1 bs initvals 24", + D11LCN1INITVALS24 : "LCN1 initvals 24", + D11LCN2BSINITVALS24 : "LCN2 bs initvals 24", + D11LCN2INITVALS24 : "LCN2 initvals 24", + D11N0ABSINITVALS16 : "N0A bs initvals 16", + D11N0BSINITVALS16 : "N0 bs initvals 16", + D11N0INITVALS16 : "N0 initvals 16", + D11UCODE_OVERSIGHT16_MIMO : "microcode 16 MIMO", + D11UCODE_OVERSIGHT16_MIMOSZ : "microcode 16 MIMO size", + D11UCODE_OVERSIGHT24_LCN : "microcode 24 LCN", + D11UCODE_OVERSIGHT24_LCNSZ : "microcode 24 LCN size", + D11UCODE_OVERSIGHT_BOMMAJOR : "bom major", + D11UCODE_OVERSIGHT_BOMMINOR : "bom minor", + } + try: + return namemap[index] + except KeyError: + return "Unknown" + +def parseHeader(hdr_data): + sections = [] + for i in range(0, len(hdr_data), 3 * 4): + offset = ord(hdr_data[i + 0]) | (ord(hdr_data[i + 1]) << 8) |\ + (ord(hdr_data[i + 2]) << 16) | (ord(hdr_data[i + 3]) << 24) + length = ord(hdr_data[i + 4]) | (ord(hdr_data[i + 5]) << 8) |\ + (ord(hdr_data[i + 6]) << 16) | (ord(hdr_data[i + 7]) << 24) + index = ord(hdr_data[i + 8]) | (ord(hdr_data[i + 9]) << 8) |\ + (ord(hdr_data[i + 10]) << 16) | (ord(hdr_data[i + 11]) << 24) + + sections.append( (offset, length, index) ) + sections.sort(key = lambda x: x[2]) # Sort by index + return sections + +def getSectionByIndex(sections, searchIndex): + for section in sections: + (offset, length, index) = section + if searchIndex == index: + return section + return None + +def parseHeaderFile(hdr_filepath): + try: + hdr_data = file(hdr_filepath, "rb").read() + except (IOError), e: + print "Failed to read header file: %s" % e.strerror + return None + if len(hdr_data) % (3 * 4) != 0: + print "Invalid header file format" + return None + return parseHeader(hdr_data) + +def dumpInfo(hdr_filepath): + sections = parseHeaderFile(hdr_filepath) + if not sections: + return 1 + for section in sections: + (offset, length, index) = section + print "Index %2d %24s ==> offset:0x%08X length:0x%08X" %\ + (index, indexToName(index), offset, length) + return 0 + +def extractSection(hdr_filepath, bin_filepath, extractIndex, outfile): + sections = parseHeaderFile(hdr_filepath) + if not sections: + return 1 + section = getSectionByIndex(sections, extractIndex) + if not section: + print "Did not find a section with index %d" % extractIndex + return 1 + (offset, length, index) = section + try: + bin_data = file(bin_filepath, "rb").read() + except (IOError), e: + print "Failed to read bin file: %s" % e.strerror + return 1 + try: + outfile.write(bin_data[offset : offset + length]) + except IndexError: + print "Binfile index error." + return 1 + return 0 + +def usage(): + print "BRCM80211 firmware converter tool" + print "" + print "Usage: %s [OPTIONS]" % sys.argv[0] + print "" + print " -H|--header FILE Use FILE as input header file" + print " -B|--bin FILE Use FILE as bin file" + print " -O|--outfile FILE Use FILE as output file. If not set, stdout is used." + print "" + print "Actions:" + print " -d|--dump Dump general information" + print " -x|--extract INDEX Extract the section with index INDEX" + print "" + print " -h|--help Print this help text" + +def main(): + opt_header = None + opt_bin = None + opt_action = None + opt_index = None + opt_outfile = sys.stdout + + try: + (opts, args) = getopt.getopt(sys.argv[1:], + "hH:B:O:dx:", + [ "help", "header=", "bin=", "outfile=", "dump", "extract=", ]) + except getopt.GetoptError: + usage() + return 1 + for (o, v) in opts: + if o in ("-h", "--help"): + usage() + return 0; + if o in ("-H", "--header"): + opt_header = v + if o in ("-B", "--bin"): + opt_bin = v + if o in ("-O", "--outfile"): + try: + opt_outfile = file(v, "wb") + except (IOError), e: + print "Failed to open output file: %s" % e.strerror + return 1 + if o in ("-d", "--dump"): + opt_action = "dump" + if o in ("-x", "--extract"): + opt_action = "extract" + try: + opt_index = int(v) + except ValueError: + print "Invalid -x|--extract index number\n" + usage() + return 1 + if not opt_action: + print "No action specified\n" + usage() + return 1 + if opt_action == "dump": + if not opt_header: + print "No header file specified\n" + usage() + return 1 + return dumpInfo(opt_header) + elif opt_action == "extract": + if not opt_header or not opt_bin: + print "No header or bin file specified\n" + usage() + return 1 + return extractSection(opt_header, opt_bin, opt_index, opt_outfile) + return 1 + +if __name__ == "__main__": + sys.exit(main())