-#
+"""
# b43 debugging library
#
# Copyright (C) 2008 Michael Buesch <mb@bu3sch.de>
#
# 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 sys
import os
import re
+import md5
+from tempfile import *
# SHM routing values
pass
-B43_MMIO_PSMDEBUG = 0x154
+B43_MMIO_MACCTL = 0x120
+B43_MMIO_PSMDEBUG = 0x154
+
+B43_MACCTL_PSM_MACEN = 0x00000001
+B43_MACCTL_PSM_RUN = 0x00000002
+B43_MACCTL_PSM_JMP0 = 0x00000004
+B43_MACCTL_PSM_DEBUG = 0x00002000
+
class B43PsmDebug:
"""Parse the contents of the PSM-debug register"""
def __init__(self, reg_content):
- self.pc = reg_content & 0xFFF
+ self.raw = reg_content
return
+ def getRaw(self):
+ """Get the raw PSM-debug register value"""
+ return self.raw
+
def getPc(self):
"""Get the microcode program counter"""
- return self.pc
+ return self.raw & 0xFFF
class B43:
except IOError, e:
print "Could not open debugfs file %s: %s" % (e.filename, e.strerror)
raise B43Exception
+
+ self.b43_path = b43_path
return
# Get the debugfs mountpoint.
try:
self.f_mmio16read.seek(0)
self.f_mmio16read.write("0x%X" % reg)
+ self.f_mmio16read.flush()
self.f_mmio16read.seek(0)
val = self.f_mmio16read.read()
except IOError, e:
- print "Coult not access debugfs file %s: %s" % (e.filename, e.strerror)
+ print "Could not access debugfs file %s: %s" % (e.filename, e.strerror)
raise B43Exception
return int(val, 16)
try:
self.f_mmio32read.seek(0)
self.f_mmio32read.write("0x%X" % reg)
+ self.f_mmio32read.flush()
self.f_mmio32read.seek(0)
val = self.f_mmio32read.read()
except IOError, e:
- print "Coult not access debugfs file %s: %s" % (e.filename, e.strerror)
+ print "Could not access debugfs file %s: %s" % (e.filename, e.strerror)
raise B43Exception
return int(val, 16)
- def write16(self, reg, value):
- """Do a 16bit MMIO write"""
+ def maskSet16(self, reg, mask, set):
+ """Do a 16bit MMIO mask-and-set operation"""
try:
+ mask &= 0xFFFF
+ set &= 0xFFFF
self.f_mmio16write.seek(0)
- self.f_mmio16write.write("0x%X = 0x%X" % (reg, value))
+ self.f_mmio16write.write("0x%X 0x%X 0x%X" % (reg, mask, set))
+ self.f_mmio16write.flush()
except IOError, e:
- print "Coult not access debugfs file %s: %s" % (e.filename, e.strerror)
+ print "Could not access debugfs file %s: %s" % (e.filename, e.strerror)
raise B43Exception
return
+
+ def write16(self, reg, value):
+ """Do a 16bit MMIO write"""
+ self.maskSet16(reg, 0, value)
+ return
- def write32(self, reg, value):
- """Do a 32bit MMIO write"""
+ def maskSet32(self, reg, mask, set):
+ """Do a 32bit MMIO mask-and-set operation"""
try:
+ mask &= 0xFFFFFFFF
+ set &= 0xFFFFFFFF
self.f_mmio32write.seek(0)
- self.f_mmio32write.write("0x%X = 0x%X" % (reg, value))
+ self.f_mmio32write.write("0x%X 0x%X 0x%X" % (reg, mask, set))
+ self.f_mmio32write.flush()
except IOError, e:
- print "Coult not access debugfs file %s: %s" % (e.filename, e.strerror)
+ print "Could not access debugfs file %s: %s" % (e.filename, e.strerror)
raise B43Exception
return
+ def write32(self, reg, value):
+ """Do a 32bit MMIO write"""
+ self.maskSet32(reg, 0, value)
+ return
+
def shmRead16(self, routing, offset):
"""Do a 16bit SHM read"""
try:
self.f_shm16read.seek(0)
self.f_shm16read.write("0x%X 0x%X" % (routing, offset))
+ self.f_shm16read.flush()
self.f_shm16read.seek(0)
val = self.f_shm16read.read()
except IOError, e:
- print "Coult not access debugfs file %s: %s" % (e.filename, e.strerror)
+ print "Could not access debugfs file %s: %s" % (e.filename, e.strerror)
raise B43Exception
return int(val, 16)
def shmMaskSet16(self, routing, offset, mask, set):
"""Do a 16bit SHM mask-and-set operation"""
try:
+ mask &= 0xFFFF
+ set &= 0xFFFF
self.f_shm16write.seek(0)
self.f_shm16write.write("0x%X 0x%X 0x%X 0x%X" % (routing, offset, mask, set))
+ self.f_shm16write.flush()
except IOError, e:
- print "Coult not access debugfs file %s: %s" % (e.filename, e.strerror)
+ print "Could not access debugfs file %s: %s" % (e.filename, e.strerror)
raise B43Exception
return
try:
self.f_shm32read.seek(0)
self.f_shm32read.write("0x%X 0x%X" % (routing, offset))
+ self.f_shm32read.flush()
self.f_shm32read.seek(0)
val = self.f_shm32read.read()
except IOError, e:
- print "Coult not access debugfs file %s: %s" % (e.filename, e.strerror)
+ print "Could not access debugfs file %s: %s" % (e.filename, e.strerror)
raise B43Exception
return int(val, 16)
def shmMaskSet32(self, routing, offset, mask, set):
"""Do a 32bit SHM mask-and-set operation"""
try:
+ mask &= 0xFFFFFFFF
+ set &= 0xFFFFFFFF
self.f_shm32write.seek(0)
self.f_shm32write.write("0x%X 0x%X 0x%X 0x%X" % (routing, offset, mask, set))
+ self.f_shm32write.flush()
except IOError, e:
- print "Coult not access debugfs file %s: %s" % (e.filename, e.strerror)
+ print "Could not access debugfs file %s: %s" % (e.filename, e.strerror)
raise B43Exception
return
self.shmMaskSet32(routing, offset, 0, value)
return
- def ucodeRegsRead(self):
- """Returns an array of 64 ints. One for each ucode register."""
+ def getGprs(self):
+ """Returns an array of 64 ints. One for each General Purpose register."""
ret = []
for i in range(0, 64):
val = self.shmRead16(B43_SHM_REGS, i)
ret.append(val)
return ret
- def shmSharedRead(self):
- """Returns an array of ints containing the bytewise SHM contents."""
+ def getLinkRegs(self):
+ """Returns an array of 4 ints. One for each Link Register."""
+ ret = []
+ for i in range(0, 4):
+ val = self.read16(0x4D0 + (i * 2))
+ ret.append(val)
+ return ret
+
+ def getOffsetRegs(self):
+ """Returns an array of 7 ints. One for each Offset Register."""
ret = []
+ for i in range(0, 7):
+ val = self.read16(0x4C0 + (i * 2))
+ ret.append(val)
+ return ret
+
+ def shmSharedRead(self):
+ """Returns a string containing the SHM contents."""
+ ret = ""
for i in range(0, 4096, 4):
val = self.shmRead32(B43_SHM_SHARED, i)
- ret.append(val & 0xFF)
- ret.append((val >> 8) & 0xFF)
- ret.append((val >> 16) & 0xFF)
- ret.append((val >> 24) & 0xFF)
+ ret += "%c%c%c%c" % (val & 0xFF,
+ (val >> 8) & 0xFF,
+ (val >> 16) & 0xFF,
+ (val >> 24) & 0xFF)
return ret
def getPsmDebug(self):
"""Read the PSM-debug register and return an instance of B43PsmDebug."""
val = self.read32(B43_MMIO_PSMDEBUG)
return B43PsmDebug(val)
+
+ def getPsmConditions(self):
+ """This returns the contents of the programmable-PSM-conditions register."""
+ return self.read16(0x4D8)
+
+ def ucodeStop(self):
+ """Unconditionally stop the microcode PSM. """
+ self.maskSet32(B43_MMIO_MACCTL, ~B43_MACCTL_PSM_RUN, 0)
+ return
+
+ def ucodeStart(self):
+ """Unconditionally start the microcode PSM. This will restart the
+ microcode on the current PC. It will not jump to 0. Warning: This will
+ unconditionally restart the PSM and ignore any driver-state!"""
+ self.maskSet32(B43_MMIO_MACCTL, ~0, B43_MACCTL_PSM_RUN)
+ return
+
+class Disassembler:
+ """Disassembler for b43 firmware."""
+ def __init__(self, binaryText, b43DasmOpts):
+ input = NamedTemporaryFile()
+ output = NamedTemporaryFile()
+
+ input.write(binaryText)
+ input.flush()
+ #FIXME check b43-dasm errors
+ os.system("b43-dasm %s %s %s" % (input.name, output.name, b43DasmOpts))
+
+ self.asmText = output.read()
+
+ def getAsm(self):
+ """Returns the assembly code."""
+ return self.asmText
+
+class Assembler:
+ """Assembler for b43 firmware."""
+ def __init__(self, assemblyText, b43AsmOpts):
+ input = NamedTemporaryFile()
+ output = NamedTemporaryFile()
+
+ input.write(assemblyText)
+ input.flush()
+ #FIXME check b43-asm errors
+ os.system("b43-asm %s %s %s" % (input.name, output.name, b43AsmOpts))
+
+ self.binaryText = output.read()
+
+ def getBinary(self):
+ """Returns the binary code."""
+ return self.binaryText
+
+class TextPatcher:
+ """A textfile patcher that does not include any target context.
+ This can be used to patch b43 firmware files."""
+
+ class TextLine:
+ def __init__(self, index, line):
+ self.index = index
+ self.line = line
+ self.deleted = False
+
+ def __init__(self, text, expected_md5sum):
+ sum = md5.md5(text).hexdigest()
+ if sum != expected_md5sum:
+ print "Patcher: The text does not match the expected MD5 sum"
+ print "Expected: " + expected_md5sum
+ print "Calculated: " + sum
+ raise B43Exception
+ text = text.splitlines()
+ self.lines = []
+ i = 0
+ for line in text:
+ self.lines.append(TextPatcher.TextLine(i, line))
+ i += 1
+ # Add an after-last dummy. Needed for the add-before logic
+ lastDummy = TextPatcher.TextLine(i, "")
+ lastDummy.deleted = True
+ self.lines.append(lastDummy)
+
+ def getText(self):
+ """This returns the current text."""
+ textLines = []
+ for l in self.lines:
+ if not l.deleted:
+ textLines.append(l.line)
+ return "\n".join(textLines)
+
+ def delLine(self, linenumber):
+ """Delete a line of text. The linenumber corresponds to the
+ original unmodified text."""
+ for l in self.lines:
+ if l.index == linenumber:
+ l.deleted = True
+ return
+ print "Patcher deleteLine: Did not find the line!"
+ raise B43Exception
+
+ def addText(self, beforeLineNumber, text):
+ """Add a text before the specified linenumber. The linenumber
+ corresponds to the original unmodified text."""
+ text = text.splitlines()
+ index = 0
+ for l in self.lines:
+ if l.index == beforeLineNumber:
+ break
+ index += 1
+ if index >= len(self.lines):
+ print "Patcher addText: Did not find the line!"
+ raise B43Exception
+ for l in text:
+ self.lines.insert(index, TextPatcher.TextLine(-1, l))
+ index += 1
+
projects / b43-tools.git / blobdiff