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authorMichael Büsch <mb@bu3sch.de>2009-03-17 19:34:45 +0000
committerMichael Büsch <mb@bu3sch.de>2009-03-17 19:34:45 +0000
commit48a5ed9bb87c64fbc8ae4df9cd5a713cadf1b893 (patch)
tree322504dccb0b98905ee0c61a4e1b752e196f6be1 /package/mac80211/files/host_bin
parent56bf010d4cd3c289ce5237413a823fab4fe47e7a (diff)
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b43: Add support for removing unnecessary firmware files to reduce the image size.
SVN-Revision: 14929
Diffstat (limited to 'package/mac80211/files/host_bin')
-rwxr-xr-xpackage/mac80211/files/host_bin/b43-fwsquash.py100
1 files changed, 100 insertions, 0 deletions
diff --git a/package/mac80211/files/host_bin/b43-fwsquash.py b/package/mac80211/files/host_bin/b43-fwsquash.py
new file mode 100755
index 0000000000..52484d1b19
--- /dev/null
+++ b/package/mac80211/files/host_bin/b43-fwsquash.py
@@ -0,0 +1,100 @@
+#!/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)
+