Add brcm80211-ivaldump

[b43-tools.git] / disassembler / brcm80211-ivaldump

diff --git a/disassembler/brcm80211-ivaldump b/disassembler/brcm80211-ivaldump
new file mode 100755 (executable)
index 0000000..9a1ad2d
--- /dev/null
+++ b/disassembler/brcm80211-ivaldump
@@ -0,0 +1,70 @@
+#!/usr/bin/env python
+"""
+#   A small script to dump the contents of a brcm80211 initvals section
+#
+#   Copyright (C) 2010  Michael Buesch <mb@bu3sch.de>
+#
+#   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 <mb@bu3sch.de>"
+       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:
+               print "\tmmio16\t0x%08X, 0x%04X" % (value, addr)
+       else:
+               print "The input file is malformed (invalid size field: 0x%04X)" % size
+               sys.exit(1)