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@marcan
marcan / glibc-2.29-reiwa.patch
Created Apr 1, 2019
glibc-2.29 patch to add the Reiwa (令和) era
View glibc-2.29-reiwa.patch
--- glibc-2.29/localedata/locales/ja_JP.old 2019-04-01 17:26:52.808154026 +0900
+++ glibc-2.29/localedata/locales/ja_JP 2019-04-01 17:38:48.872822551 +0900
@@ -14946,7 +14946,9 @@
t_fmt_ampm "%p%I<U6642>%M<U5206>%S<U79D2>"
-era "+:2:1990//01//01:+*:<U5E73><U6210>:%EC%Ey<U5E74>";/
+era "+:2:2020//01//01:+*:<U4EE4><U548C>:%EC%Ey<U5E74>";/
+ "+:1:2019//05//01:2019//12//31:<U4EE4><U548C>:%EC<U5143><U5E74>";/
+ "+:2:1990//01//01:2019//04//30:<U5E73><U6210>:%EC%Ey<U5E74>";/
@marcan
marcan / rpi_cam_auth.py
Created Jan 25, 2019
Raspberry Pi Camera V2 DRM authentication example
View rpi_cam_auth.py
import hmac, hashlib
# Data from I²C trace at https://hackaday.io/project/19480-raspberry-pi-camera-v21-reversed/log/52547-i2c-logic-analyzer-trace
# Secret key from VideoCore blob
# serial[8], serial[7:4], serial[3:0]
serial = bytes.fromhex("EE8C196D8301230B59")
# rPi -> camera random number
numIn = bytes.fromhex("5805F3C898C3133154498E082F2E703516F2DBD1")
@marcan
marcan / vortex_patch.py
Created Dec 22, 2018
Alesis Vortex Wireless 2 patch to send MIDI messages when pressing the ribbon bank buttons
View vortex_patch.py
from asm import *
blob = open("image.bin", "rb").read()
start_addr = 0x08003000
patch_start = start_addr + len(blob)
assert patch_start % 4 == 0
@marcan
marcan / asm.py
Created Dec 22, 2018
Python module to assemble snippets of code
View asm.py
#!/usr/bin/env python
import os, tempfile, shutil, subprocess
class AsmException(Exception):
pass
class BaseAsm(object):
def __init__(self, source, addr = 0):
self.source = source
self._tmp = tempfile.mkdtemp() + os.sep
@marcan
marcan / canon-ef-protocol-notes.md
Last active Nov 5, 2019
Canon EF protocol notes
View canon-ef-protocol-notes.md

Testing done using a Canon EOS 600D and a Canon EF-S18-55mm f/3.5-5.6 IS II.

Pinout

  1. VBAT
  2. DET (common with P-GND on lens side)
  3. P-GND
  4. VDD
  5. DCL
  6. DLC
@marcan
marcan / xt256img.py
Last active Oct 6, 2019
Image to xterm-256 Unicode block art converter
View xt256img.py
#!/usr/bin/env python3
import sys, argparse, codecs
from PIL import Image, ImagePalette
xterm256colors = [ # http://pln.jonas.me/xterm-colors
0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x80, 0x80, 0x00,
0x00, 0x00, 0x80, 0x80, 0x00, 0x80, 0x00, 0x80, 0x80, 0xc0, 0xc0, 0xc0,
0x80, 0x80, 0x80, 0xff, 0x00, 0x00, 0x00, 0xff, 0x00, 0xff, 0xff, 0x00,
0x00, 0x00, 0xff, 0xff, 0x00, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff,
0x00, 0x00, 0x00, 0x00, 0x00, 0x5f, 0x00, 0x00, 0x87, 0x00, 0x00, 0xaf,
@marcan
marcan / ghettohci.c
Created Apr 24, 2018
GhettOHCI - perhaps the world's smallest and stupidest OHCI stack.
View ghettohci.c
/*
mini - a Free Software replacement for the Nintendo/BroadOn IOS.
ghettohci - debug over FT232 over OHCI
Copyright (C) 2012 Hector Martin "marcan" <marcan@marcansoft.com>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
@marcan
marcan / memopri.py
Last active Nov 28, 2018
Casio MemoPri (メモプリ) printer client
View memopri.py
#!/usr/bin/python3
import sys, socket, struct
import PIL, PIL.Image, PIL.ImageOps
DENSITY_MIN = 0
DENSITY_LIGHT = 1
DENSITY_NORMAL = 2
DENSITY_HEAVY = 3
DENSITY_MAX = 4
View pyasm.py
#!/usr/bin/env python3
import os, tempfile, shutil, subprocess, ctypes
class BaseAsmFunc(object):
def __init__(self, sfunc):
self.source = sfunc.__doc__
self._tmp = tempfile.mkdtemp() + os.sep
self.compile(self.source)
def compile(self, source):
@marcan
marcan / wiipointer.c
Last active Jul 2, 2019
Wiimote sensor bar tracking and pointer control algorithm
View wiipointer.c
/*
* Algorithm to process Wiimote IR tracking data into a usable pointer position
* by tracking the sensor bar.
*
* Copyright (c) 2008-2011 Hector Martin "marcan" <marcan@marcan.st>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
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