diff options
Diffstat (limited to 'oncology/dpfhack_display/fw/hackit.py')
| -rwxr-xr-x | oncology/dpfhack_display/fw/hackit.py | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/oncology/dpfhack_display/fw/hackit.py b/oncology/dpfhack_display/fw/hackit.py deleted file mode 100755 index 5c7a5ae9..00000000 --- a/oncology/dpfhack_display/fw/hackit.py +++ /dev/null @@ -1,167 +0,0 @@ -#!/usr/bin/python -import struct -import sys -sys.path.append("./Debug") -import dpf -import time -import binascii - -# DPF profiles -import profiles - -# If you are an expert, set this to 0 to avoid the warnings -paranoia_mode = 1 - -JUMPTABLE_OFFSET = 0x80 -HEXDIR = "hexfiles/" - -instructions = [ - """Press and hold MENU while USB is plugged in. -If successful, you will get the 'USB connect' message and the device -will appear as non-USB storage device""" -] - -ins_common = """To put the device back into (almost) original state working -as USB storage, press the RESET button.""" - -############################################################################ - -bswap = lambda x: ( (x >> 8) & 0xff ) | ((x << 8) & 0xff00) - -def dump_flash(d, fname, offset, size): - data = d.readFlash(offset, size) - f = open(fname, "wb") - f.write(data) - f.close() - -def find_dpf(version): - for i in profiles.KNOWN_DPFS: - v = i[0] - if v[0] == str(version[0]) and v[1] == str(version[1]) and v[2] == str(version[2]): - print "Found matching version info" - return i - return None - -def get_module(buf, n): - n *= 8 - start, end, flashaddr = struct.unpack("<HHI", buf[n:n+8]) - - start = bswap(start) - end = bswap(end) - - return start, end, flashaddr - -def patch_module(d, record, buf): - n = record[0] - if n == profiles.BINARY: # Write full binary into sector - start, flashaddr = record[1] - f = open(record[2]) - d.eraseFlash(flashaddr) - buf = f.read() - f.close() - d.writeFlash(flashaddr, buf) - elif n == profiles.PATCH: # We make a copy of a full sector - start, flashaddr = record[1] - print "Patching sector addr %06x with %s" % (flashaddr, record[2]) - d.patchSector(start, flashaddr, HEXDIR + record[2]) - elif n == profiles.COPY: # We make a copy of a full sector - src, dest = record[1] - print "Copying sector from 0x%06x to 0x%06x..." %(src, dest) - data = d.readFlash(src, 0x10000) - d.eraseFlash(dest) - d.writeFlash(dest, data) - else: - print "Analyzing module %d..." % n - start, end, flashaddr = get_module(buf, n) - l = end - start - start += 0x800 - data = d.readFlash(flashaddr, l) - c = binascii.crc32(data) & 0xffffffff - checksums = record[1] - i = 0 - try: - i = checksums.index(c) - except ValueError: - print "CRC32 does not match: 0x%08lx" % c - return False - - n = len(checksums) - 1 - - if i == n: - print "Seems up to date. Do you still wish to patch?" - a = raw_input("Type 'yes' to continue > ") - if a != "yes": - return True - print "Updating module.." - else: - print "Patching from version %d to %d" % (i, n) - - d.patchSector(start, flashaddr, HEXDIR + record[2]) - - return True - -def recognize(d): - print "Reading flash..." - buf = d.readFlash(0x0, 0x280) - - print "done" - b = buf[:7] - xmem, code, dummy, offset = struct.unpack(">HHBH", b) - version = (buf[0x50:0x58], buf[0x60: 0x70], buf[0x80:0x88]) - - dpf = find_dpf(version) - if not dpf: - print "No DPF found. Create a record or look for one" - print version - else: - print "Identifier:", dpf[1] - di = dpf[3] - di['offset'] = offset - - return dpf - -def patch(d, dpf): - if (paranoia_mode): - print """Now patching. There is no 100% guarantee that your device will - work after doing this. You must never unplug the device from USB while - it is being updated. - Are you sure you take all risks and that you want to continue?""" - a = raw_input("Type 'yes' to continue > ") - if a != "yes": - print "Aborting." - return False - - p = dpf[4] - - buf = d.readFlash(JUMPTABLE_OFFSET, dpf[3]['offset']) - for i in p[2]: - if not patch_module(d, i, buf): - return False - - return True -# -# -# MAIN - -if len(sys.argv) != 2: - print "Usage: %s [<generic scsi device> | usb0]" % sys.argv[0] - print "You may have to run this as root when accessing generic scsi devices" - sys.exit(-1) - -d = dpf.open(sys.argv[1]) - -dpf = recognize(d) -if dpf: - r = dpf[4] - ret = patch(d, dpf) - if ret: - print - print "Now disconnect the DPF from USB." - print "To activate the 'developer mode':" - print - print instructions[r[0]] - print - print ins_common - else: - print "DPF might not be completely patched." -d.close() |