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openwrt-xburst/package/mac80211/files/host_bin/b43-fwsquash.py
mb d8a99a038c b43: Add support for removing unnecessary firmware files to reduce the image size.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@14929 3c298f89-4303-0410-b956-a3cf2f4a3e73
2009-03-17 19:34:45 +00:00

101 lines
2.4 KiB
Python
Executable File

#!/usr/bin/env python
#
# b43 firmware file squasher
# Removes unnecessary firmware files
#
# Copyright (c) 2009 Michael Buesch <mb@bu3sch.de>
#
# Licensed under the GNU/GPL version 2 or (at your option) any later version.
#
import sys
import os
def usage():
print "Usage: %s PHYTYPES COREREVS /path/to/extracted/firmware" % sys.argv[0]
print ""
print "PHYTYPES is a comma separated list of:"
print "A => A-PHY"
print "AG => Dual A-PHY G-PHY"
print "G => G-PHY"
print "LP => LP-PHY"
print "N => N-PHY"
print ""
print "COREREVS is a comma separated list of core revision numbers."
if len(sys.argv) != 4:
usage()
sys.exit(1)
phytypes = sys.argv[1]
corerevs = sys.argv[2]
fwpath = sys.argv[3]
phytypes = phytypes.split(',')
try:
corerevs = map(lambda r: int(r), corerevs.split(','))
except ValueError:
print "ERROR: \"%s\" is not a valid COREREVS string\n" % corerevs
usage()
sys.exit(1)
fwfiles = os.listdir(fwpath)
fwfiles = filter(lambda str: str.endswith(".fw"), fwfiles)
if not fwfiles:
print "ERROR: No firmware files found in %s" % fwpath
sys.exit(1)
required_fwfiles = []
def revs_match(revs_a, revs_b):
for rev in revs_a:
if rev in revs_b:
return True
return False
def phytypes_match(types_a, types_b):
for type in types_a:
type = type.strip().upper()
if type in types_b:
return True
return False
revmapping = {
"ucode5.fw" : (5,6,7,8,9,10,),
"ucode11.fw" : (11,12,),
"ucode13.fw" : (13,),
"pcm4.fw" : (1,2,3,4,),
"pcm5.fw" : (5,6,7,8,9,10,),
}
initvalmapping = {
"a0g1initvals5.fw" : ( (5,6,7,8,9,10,), ("AG",), ),
"a0g0initvals5.fw" : ( (5,6,7,8,9,10,), ("A", "AG",), ),
"b0g0initvals5.fw" : ( (5,6,7,8,9,10,), ("G",), ),
"b0g0initvals13.fw" : ( (13,), ("G",), ),
"n0initvals11.fw" : ( (11,12,), ("N",), ),
"a0g1bsinitvals5.fw" : ( (5,6,7,8,9,10,), ("AG",), ),
"a0g0bsinitvals5.fw" : ( (5,6,7,8,9,10,), ("A", "AG"), ),
"b0g0bsinitvals5.fw" : ( (5,6,7,8,9,10,), ("G",), ),
"n0bsinitvals11.fw" : ( (11,12,), ("N",), ),
}
for f in fwfiles:
if f in revmapping:
if revs_match(corerevs, revmapping[f]):
required_fwfiles += [f]
continue
if f in initvalmapping:
if revs_match(corerevs, initvalmapping[f][0]) and\
phytypes_match(phytypes, initvalmapping[f][1]):
required_fwfiles += [f]
continue
print "WARNING: Firmware file %s not found in the mapping lists" % f
for f in fwfiles:
if f not in required_fwfiles:
print "Deleting %s" % f
os.unlink(fwpath + '/' + f)