--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/frame-ctrl.py	Sat May 07 19:00:43 2011 +0200
@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+
+import os
+import struct
+import sys
+import time
+import usb.core
+from usb.util import *
+
+vendorId = 0x04e8
+models = {'SPF-87H': (0x2033, 0x2034), 'SPF-107H': (0x2027, 0x2028) }
+
+chunkSize = 0x4000
+bufferSize = 0x20000
+
+def expect(result, verifyList):
+  resultList = result.tolist()
+  if resultList != verifyList:
+    print >> sys.stderr, "Warning: Expected " + str(verifyList) + " but got " + str(resultList)
+
+def storageToDisplay(dev):
+  print "Setting device to display mode"
+  try:
+    dev.ctrl_transfer(CTRL_TYPE_STANDARD | CTRL_IN | CTRL_RECIPIENT_DEVICE, 0x06, 0xfe, 0xfe, 254)
+  except usb.core.USBError as e:
+    errorStr = str(e)
+    if errorStr != 'No such device (it may have been disconnected)':
+      raise e
+
+def displayModeSetup(dev):
+  print "Sending setup commands to device"
+  result = dev.ctrl_transfer(CTRL_TYPE_VENDOR | CTRL_IN | CTRL_RECIPIENT_DEVICE, 0x04, 0x00, 0x00, 1)
+  expect(result, [ 0x03 ])
+#  result = dev.ctrl_transfer(CTRL_TYPE_VENDOR | CTRL_IN | CTRL_RECIPIENT_DEVICE, 0x01, 0x00, 0x00, 2)
+#  expect(result, [ 0x09, 0x04 ])
+#  result = dev.ctrl_transfer(CTRL_TYPE_VENDOR | CTRL_IN | CTRL_RECIPIENT_DEVICE, 0x02, 0x00, 0x00, 1)
+#  expect(result, [ 0x46 ])
+
+def paddedBytes(buf, size):
+  diff = size - len(buf)
+  return buf + bytes(b'\x00') * diff
+
+def chunkyWrite(dev, buf):
+  pos = 0
+  while pos < bufferSize:
+    dev.write(0x02, buf[pos:pos+chunkSize])
+    pos += chunkSize
+
+def writeImage(dev):
+#  result = dev.ctrl_transfer(CTRL_TYPE_STANDARD | CTRL_IN | CTRL_RECIPIENT_DEVICE, 0x06, 0x0300, 0x00, 255)
+#  expect(result, [ 0x04, 0x03, 0x09, 0x04 ])
+
+#  result = dev.ctrl_transfer(CTRL_TYPE_STANDARD | CTRL_IN | CTRL_RECIPIENT_DEVICE, 0x06, 0x0301, 0x0409, 255)
+
+  if len(sys.argv) < 2 or sys.argv[1] == "-":
+    content = sys.stdin.read()
+  else:
+    f = open(sys.argv[1])
+    content = f.read()
+    f.close()
+
+  size = struct.pack('I', len(content))
+  header = b'\xa5\x5a\x09\x04' + size + b'\x46\x00\x00\x00'
+
+  content = header + content
+
+  pos = 0
+  while pos < len(content):
+    buf = paddedBytes(content[pos:pos+bufferSize], bufferSize)
+    chunkyWrite(dev, buf)
+    pos += bufferSize
+
+  
+#  result = dev.ctrl_transfer(CTRL_TYPE_VENDOR | CTRL_IN | CTRL_RECIPIENT_DEVICE, 0x06, 0x00, 0x00, 2)
+#  expect(result, [ 0x00, 0x00 ])
+
+found = False
+
+for k, v in models.iteritems():
+  dev = usb.core.find(idVendor=vendorId, idProduct=v[0])
+  if dev:
+    print "Found " + k + " in storage mode"
+    storageToDisplay(dev)
+    time.sleep(1)
+    dev = usb.core.find(idVendor=vendorId, idProduct=v[1])
+    displayModeSetup(dev)
+    found = True
+  if not dev:
+    dev = usb.core.find(idVendor=vendorId, idProduct=v[1])
+  if dev:
+    print "Found " + k + " in display mode"
+    dev.set_configuration()
+    writeImage(dev)
+    found = True
+
+if not found:
+  print >> sys.stderr, "No supported devices found"
+  sys.exit(-1)