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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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