1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
#!/usr/bin/env python
"""
# b43 firmware state dumper
#
# Copyright (C) 2008 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 3
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
import getopt
from libb43 import *
from sys import stdout
from tempfile import *
import re
def usage():
print "b43 firmware state dumper"
print ""
print "Copyright (C) 2008 Michael Buesch <m@bues.ch>"
print "Licensed under the GNU/GPL version 3"
print ""
print "Usage: b43-fwdump [OPTIONS]"
print ""
print "-h|--help Print this help text"
print "-p|--phy WIPHY The WIPHY to use. For example phy0."
print " Can be omitted, if there is only one device in the system."
print "-b|--binary BIN The firmware binary. This is required for"
print " an instruction dump."
print "-d|--dasmopt OPT Additional options to the disassembler."
print "-s|--shm Also dump SHM."
print "-S|--shmbin Do a binary SHM dump, only."
return
def parseArgs():
global phy
global binary
global dasmopt
global dumpShm
global dumpShmBin
phy = None # Autodetect
binary = None # No instruction dump
dasmopt = ""
dumpShm = False
dumpShmBin = False
try:
(opts, args) = getopt.getopt(sys.argv[1:],
"hp:b:d:sS",
[ "help", "phy=", "binary=", "dasmopt=", "shm", "shmbin" ])
except getopt.GetoptError:
usage()
sys.exit(1)
for (o, v) in opts:
if o in ("-h", "--help"):
usage()
sys.exit(0)
if o in ("-p", "--phy"):
phy = v
if o in ("-b", "--binary"):
binary = v
if o in ("-d", "--dasmopt"):
dasmopt = v
if o in ("-s", "--shm"):
dumpShm = True
if o in ("-S", "--shmbin"):
dumpShmBin = True
return
def dump_regs(prefix, regs):
if len(regs) >= 10:
template = "%s%02u: %04X "
else:
template = "%s%01u: %04X "
for i in range(0, len(regs)):
if i != 0 and i % 4 == 0:
stdout.write("\n")
stdout.write(template % (prefix, i, regs[i]))
stdout.write("\n")
return
def dasmLineIsPC(line, pc):
m = re.match(r'.*/\*\s+([0-9a-fA-F]+)\s+\*/.*', line, re.DOTALL)
if not m:
return False
linePC = int(m.group(1), 16)
return pc == linePC
def makeShortDump(dasm, pc):
dasm = dasm.splitlines()
i = 0
for line in dasm:
if dasmLineIsPC(line, pc):
break
i += 1
else:
return "<Could not find PC in the binary>"
ret = ""
pos = max(i - 8, 0)
end = min(i + 8, len(dasm) - 1)
while pos != end:
ret += dasm[pos]
if dasmLineIsPC(dasm[pos], pc):
ret += "\t\t<<<<<<<<<<<"
ret += "\n"
pos += 1
return ret
def toAscii(char):
if char >= 32 and char <= 126:
return chr(char)
return "."
def main():
parseArgs()
b43 = B43(phy)
# Fetch the hardware information
b43.ucodeStop()
gpr = b43.getGprs()
lr = b43.getLinkRegs()
off = b43.getOffsetRegs()
if dumpShm or dumpShmBin:
shm = b43.shmSharedRead()
dbg = b43.getPsmDebug()
psmcond = b43.getPsmConditions()
b43.ucodeStart()
if dumpShmBin:
# Only do a binary SHM dump
stdout.write(shm)
sys.exit(0)
print "--- B43 microcode state dump ---"
print "PC: %03X PSM-COND: %04X" % (dbg.getPc(), psmcond)
print "Link registers:"
dump_regs("lr", lr)
print "Offset registers:"
dump_regs("off", off)
print "General purpose registers:"
dump_regs("r", gpr)
print "Code:"
if binary:
try:
bintext = file(binary, "r").read()
except IOError, e:
print "Could not read binary file %s: %s" % (binary, e.strerror)
sys.exit(1)
dasm = Disassembler(bintext, dasmopt + "--paddr").getAsm()
print makeShortDump(dasm, dbg.getPc())
else:
print "<No binary supplied. See --binary option>"
if dumpShm:
print "Shared memory:"
ascii = ""
for i in range(0, len(shm)):
if i % 16 == 0 and i != 0:
stdout.write(" " + ascii + "\n")
ascii = ""
if i % 16 == 0:
stdout.write("0x%04X: " % i)
c = ord(shm[i])
stdout.write("%02X" % c)
if (i % 2 != 0):
stdout.write(" ")
ascii += toAscii(c)
stdout.write(" " + ascii + "\n")
return
try:
main()
except B43Exception:
sys.exit(1)
|
