diff options
Diffstat (limited to 'tinyusb/hw/bsp/fomu/dfu.py')
-rwxr-xr-x | tinyusb/hw/bsp/fomu/dfu.py | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/tinyusb/hw/bsp/fomu/dfu.py b/tinyusb/hw/bsp/fomu/dfu.py deleted file mode 100755 index 32479350..00000000 --- a/tinyusb/hw/bsp/fomu/dfu.py +++ /dev/null @@ -1,95 +0,0 @@ -#!/usr/bin/python - -# Written by Antonio Galea - 2010/11/18 -# Updated for DFU 1.1 by Sean Cross - 2020/03/31 -# Distributed under Gnu LGPL 3.0 -# see http://www.gnu.org/licenses/lgpl-3.0.txt - -import sys,struct,zlib,os -from optparse import OptionParser - -DEFAULT_DEVICE="0x1209:0x5bf0" - -def named(tuple,names): - return dict(zip(names.split(),tuple)) -def consume(fmt,data,names): - n = struct.calcsize(fmt) - return named(struct.unpack(fmt,data[:n]),names),data[n:] -def cstring(string): - return string.split('\0',1)[0] -def compute_crc(data): - return 0xFFFFFFFF & -zlib.crc32(data) -1 - -def parse(file,dump_images=False): - print ('File: "%s"' % file) - data = open(file,'rb').read() - crc = compute_crc(data[:-4]) - data = data[len(data)-16:] - suffix = named(struct.unpack('<4H3sBI',data[:16]),'device product vendor dfu ufd len crc') - print ('usb: %(vendor)04x:%(product)04x, device: 0x%(device)04x, dfu: 0x%(dfu)04x, %(ufd)s, %(len)d, 0x%(crc)08x' % suffix) - if crc != suffix['crc']: - print ("CRC ERROR: computed crc32 is 0x%08x" % crc) - data = data[16:] - if data: - print ("PARSE ERROR") - -def build(file,data,device=DEFAULT_DEVICE): - # Parse the VID and PID from the `device` argument - v,d=map(lambda x: int(x,0) & 0xFFFF, device.split(':',1)) - - # Generate the DFU suffix, consisting of these fields: - # Field name | Length | Description - # ================+=========+================================ - # bcdDevice | 2 | The release number of this firmware (0xffff - don't care) - # idProduct | 2 | PID of this device - # idVendor | 2 | VID of this device - # bcdDFU | 2 | Version of this DFU spec (0x01 0x00) - # ucDfuSignature | 3 | The characters 'DFU', printed in reverse order - # bLength | 1 | The length of this suffix (16 bytes) - # dwCRC | 4 | A CRC32 of the data, including this suffix - data += struct.pack('<4H3sB',0xffff,d,v,0x0100,b'UFD',16) - crc = compute_crc(data) - # Append the CRC32 of the entire block - data += struct.pack('<I',crc) - open(file,'wb').write(data) - -if __name__=="__main__": - usage = """ -%prog [-d|--dump] infile.dfu -%prog {-b|--build} file.bin [{-D|--device}=vendor:device] outfile.dfu""" - parser = OptionParser(usage=usage) - parser.add_option("-b", "--build", action="store", dest="binfile", - help="build a DFU file from given BINFILE", metavar="BINFILE") - parser.add_option("-D", "--device", action="store", dest="device", - help="build for DEVICE, defaults to %s" % DEFAULT_DEVICE, metavar="DEVICE") - parser.add_option("-d", "--dump", action="store_true", dest="dump_images", - default=False, help="dump contained images to current directory") - (options, args) = parser.parse_args() - - if options.binfile and len(args)==1: - binfile = options.binfile - if not os.path.isfile(binfile): - print ("Unreadable file '%s'." % binfile) - sys.exit(1) - target = open(binfile,'rb').read() - outfile = args[0] - device = DEFAULT_DEVICE - # If a device is specified, parse the pair into a VID:PID pair - # in order to validate them. - if options.device: - device=options.device - try: - v,d=map(lambda x: int(x,0) & 0xFFFF, device.split(':',1)) - except: - print ("Invalid device '%s'." % device) - sys.exit(1) - build(outfile,target,device) - elif len(args)==1: - infile = args[0] - if not os.path.isfile(infile): - print ("Unreadable file '%s'." % infile) - sys.exit(1) - parse(infile, dump_images=options.dump_images) - else: - parser.print_help() - sys.exit(1) |