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#!/usr/bin/env python
"""
# A small script to dump the contents of a brcm80211 initvals section
#
# Copyright (C) 2010 Michael Buesch <m@bues.ch>
#
# 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
def usage():
print "brcm80211 initvals section dumper"
print "Prints a .initvals assembly section to stdout."
print ""
print "Copyright (C) 2010 Michael Buesch <m@bues.ch>"
print "Licensed under the GNU/GPL version 2"
print ""
print "Usage: brcm80211-ivaldump FILE"
print ""
print "FILE is the file that is going to be dumped"
return
if len(sys.argv) != 2:
usage()
sys.exit(1)
filename = sys.argv[1]
try:
ivals = file(filename).read()
except IOError, e:
print "Could not read the initvals file: %s" % e.strerror
sys.exit(1)
if len(ivals) == 0 or len(ivals) % 8 != 0:
print "The input file is malformed."
sys.exit(1)
sectname = filename.split('/')[-1]
if sectname.endswith(".fw"):
sectname = sectname[:-3]
print ".initvals(%s)" % sectname
for idx in range(0, len(ivals), 8):
addr = ord(ivals[idx + 0])
addr |= ord(ivals[idx + 1]) << 8
size = ord(ivals[idx + 2])
size |= ord(ivals[idx + 3]) << 8
value = ord(ivals[idx + 4])
value |= ord(ivals[idx + 5]) << 8
value |= ord(ivals[idx + 6]) << 16
value |= ord(ivals[idx + 7]) << 24
if addr == 0xFFFF:
break
if size == 4:
print "\tmmio32\t0x%08X, 0x%04X" % (value, addr)
elif size == 2:
if value & 0xFFFF0000:
print "The input file is malformed (invalid value for 16bit field)"
sys.exit(1)
print "\tmmio16\t0x%04X, 0x%04X" % (value, addr)
else:
print "The input file is malformed (invalid size field: 0x%04X)" % size
sys.exit(1)
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