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testUsb.py
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162 lines (120 loc) · 5.59 KB
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import usb
import array
import copy
import time
import zlib
import enum
import goodweSample
import iGoodwe
class CC:
reg = 0x00
read = 0x01
class FC:
# Register function codes
offline = 0x00
allocreg = 0x01
query = 0x01
remreg = 0x02
query_id = 0x02
query_stt = 0x03
# Read function codes
regreq = 0x80
result = 0x81
addconf = 0x81
result_id = 0x82
remconf = 0x82
result_stt = 0x83
class testUsb :
#--------------------------------------------------------------------------
def __init__(self, vendorId):
'''Initialisation of the goodweUsb class. All data members are set
to default values. '''
self.m_serialNumber = ""
self.m_sendBuffer = bytearray()
self.m_inverter_adr = 0x11
self.m_inverter_adr_confirmed = False
self.vendorId = vendorId
self.cc_reg_switch = {FC.offline: self._reply_offline,
FC.regreq: self._reply_regreq,
FC.allocreg: self._reply_allocreg,
FC.addconf: self._reply_addconf,
FC.remreg: self._reply_remreg,
FC.remconf: self._reply_remconf}
self.cc_read_switch = {FC.query: self._reply_read_data,
FC.query_id: self._skip_message,
FC.result_id: self._skip_message,
FC.query_stt: self._skip_message,
FC.result_stt: self._skip_message}
def reset( self):
pass
def is_kernel_driver_active( self, level):
return level == 0
def detach_kernel_driver( self, level):
pass
def set_configuration( self):
pass
def get_active_configuration( self):
return (0, 0, 1, 1, 2, 2)
def read( self, epi, nr_bytes, timeout):
buf = self.m_sendBuffer[0:nr_bytes]
self.m_sendBuffer=self.m_sendBuffer[nr_bytes:]
# print "reading " + str(nr_bytes) + " bytes."
time.sleep(timeout/1000.0)
return buf
def ctrl_transfer( self, address, function, test1, test2, inBuffer):
# print "ctrl_transfer"
hB = inBuffer[len(inBuffer)-2]
lB = inBuffer[len(inBuffer)-1]
hC,lC = self._calc_crc16( inBuffer[3:], len(inBuffer)-5)
if not ((ord(hB) == hC) and (ord(lB) == lC)):
raise ValueError("Calculated CRC doesn't match message CRC")
# [0xCC, 0x99, len(buf)]) + [0xAA, 0x55, 0x80, address, cc, fc]) + data
lenn = ord(inBuffer[2])
if ord(inBuffer[2]) != len(inBuffer)-3:
raise ValueError("Buffer length does not match")
src = ord(inBuffer[5])
adr = ord(inBuffer[6])
cc = ord(inBuffer[7])
fc = ord(inBuffer[8])
data = inBuffer[9:]
# print "Emulation: src: " + hex(src) + " adr: " + hex(adr) + " cc: " + hex(cc) + " fc: " + hex(fc)
# Call the reply function for the received message
if cc == CC.reg:
# print "Registration"
self.cc_reg_switch[fc]( src, lenn, data)
elif cc == CC.read:
# print "Read from: " + hex(src) + " len: " +str(lenn)
self.cc_read_switch[fc]( src, lenn, data)
return len(inBuffer)
def _reply_offline( self, src, lenn, inBuffer):
print "_reply_offline"
def _reply_regreq( self, src, lenn, inBuffer):
print "_reply_regreq"
def _reply_allocreg( self, src, lenn, inBuffer):
print "_reply_allocreg"
self.m_sendBuffer=bytearray([0x0,0x0,0x0,0x0,0xaa,0x55,0x11,0x80,0x00,0x81,0x00,0x02,0x11,0x11,0x31,0x30,0x30,0x36,0x4b,0x44,0x54,0x55,0x31,0x33,0x35,0x30,0x30,0x30,0x32,0x33,0x11,0x05,0xae,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00])
def _reply_addconf( self, src, lenn, inBuffer):
print "_reply_addconf"
def _reply_remreg( self, src, lenn, inBuffer):
print "_reply_remreg"
self.m_sendBuffer=bytearray([0x0,0x0,0x0,0xaa,0x55,0x7f,0x80,0x00,0x80,0x10,0x31,0x30,0x30,0x36,0x4b,0x44,0x54,0x55,0x31,0x33,0x35,0x30,0x30,0x30,0x32,0x33,0x06,0x1B,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0])
# h,l = self._calc_crc16( self.m_sendBuffer, len(self.m_sendBuffer))
# self.m_sendBuffer+=''.join(chr(x) for x in [h,l])
def _reply_remconf( self, src, lenn, inBuffer):
print "_reply_remconf"
def _skip_message( self, src, lenn, inBuffer):
print "_skip_message"
def _reply_read_data( self, src, lenn, inBuffer):
print "_reply_read_data"
self.m_sendBuffer=bytearray([0x0,0x0,0x0,0x0,0xaa,0x55,0x11,0x80,0x01,0x81,0x42,0x00,0x00,0x15,0xc7,0x00,0x00,0x00,0x03,0x09,0x08,0x09,0x1a,0x09,0x13,0x00,0x03,0x00,0x03,0x00,0x03,0x13,0x85,0x13,0x85,0x13,0x86,0x00,0x26,0x00,0x01,0x01,0xa9,0x00,0x00,0x00,0x00,0x00,0x01,0x68,0x2c,0x0000,0x00,0x20,0x53,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xd4,0x08,0x02])
#--------------------------------------------------------------------------
def _calc_crc16( self, buf, length):
'''Calculate the CRC from the message.'''
crc = 0
for cnt in xrange(length):
crc += ord(buf[cnt])
#write out the high and low
high = (crc >> 8) & 0xff;
low = crc & 0xff;
return high, low
#---------------- End of file ------------------------------------------------