3 # b43 firmware state dumper
5 # Copyright (C) 2008 Michael Buesch <m@bues.ch>
7 # This program is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License version 3
9 # as published by the Free Software Foundation.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
22 from sys import stdout
23 from tempfile import *
28 print "b43 firmware state dumper"
30 print "Copyright (C) 2008 Michael Buesch <m@bues.ch>"
31 print "Licensed under the GNU/GPL version 3"
33 print "Usage: b43-fwdump [OPTIONS]"
35 print "-h|--help Print this help text"
36 print "-p|--phy WIPHY The WIPHY to use. For example phy0."
37 print " Can be omitted, if there is only one device in the system."
38 print "-b|--binary BIN The firmware binary. This is required for"
39 print " an instruction dump."
40 print "-d|--dasmopt OPT Additional options to the disassembler."
41 print "-s|--shm Also dump SHM."
42 print "-S|--shmbin Do a binary SHM dump, only."
52 phy = None # Autodetect
53 binary = None # No instruction dump
59 (opts, args) = getopt.getopt(sys.argv[1:],
61 [ "help", "phy=", "binary=", "dasmopt=", "shm", "shmbin" ])
62 except getopt.GetoptError:
67 if o in ("-h", "--help"):
70 if o in ("-p", "--phy"):
72 if o in ("-b", "--binary"):
74 if o in ("-d", "--dasmopt"):
76 if o in ("-s", "--shm"):
78 if o in ("-S", "--shmbin"):
83 def dump_regs(prefix, regs):
85 template = "%s%02u: %04X "
87 template = "%s%01u: %04X "
88 for i in range(0, len(regs)):
89 if i != 0 and i % 4 == 0:
91 stdout.write(template % (prefix, i, regs[i]))
95 def dasmLineIsPC(line, pc):
96 m = re.match(r'.*/\*\s+([0-9a-fA-F]+)\s+\*/.*', line, re.DOTALL)
99 linePC = int(m.group(1), 16)
102 def makeShortDump(dasm, pc):
103 dasm = dasm.splitlines()
106 if dasmLineIsPC(line, pc):
110 return "<Could not find PC in the binary>"
113 end = min(i + 8, len(dasm) - 1)
116 if dasmLineIsPC(dasm[pos], pc):
117 ret += "\t\t<<<<<<<<<<<"
123 if char >= 32 and char <= 126:
132 # Fetch the hardware information
135 lr = b43.getLinkRegs()
136 off = b43.getOffsetRegs()
137 if dumpShm or dumpShmBin:
138 shm = b43.shmSharedRead()
139 dbg = b43.getPsmDebug()
140 psmcond = b43.getPsmConditions()
144 # Only do a binary SHM dump
148 print "--- B43 microcode state dump ---"
149 print "PC: %03X PSM-COND: %04X" % (dbg.getPc(), psmcond)
150 print "Link registers:"
152 print "Offset registers:"
153 dump_regs("off", off)
154 print "General purpose registers:"
160 bintext = file(binary, "r").read()
162 print "Could not read binary file %s: %s" % (binary, e.strerror)
164 dasm = Disassembler(bintext, dasmopt + "--paddr").getAsm()
165 print makeShortDump(dasm, dbg.getPc())
167 print "<No binary supplied. See --binary option>"
170 print "Shared memory:"
172 for i in range(0, len(shm)):
173 if i % 16 == 0 and i != 0:
174 stdout.write(" " + ascii + "\n")
177 stdout.write("0x%04X: " % i)
179 stdout.write("%02X" % c)
183 stdout.write(" " + ascii + "\n")