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Original file line number | Diff line number | Diff line change |
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from enum import Enum | ||
from crc8 import crc8 | ||
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class Action(Enum): | ||
NON = 0 | ||
REQUEST_STATUS = 1 | ||
START_TAG_POLLING = 2 | ||
START_TAG_DISCOVERY = 3 | ||
READ_TAG = 4 | ||
READ_TAG_2 = 5 | ||
READ_FINISHED = 6 | ||
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class McuState(Enum): | ||
NOT_INITIALIZED = 0 | ||
IRC = 1 | ||
NFC = 2 | ||
STAND_BY = 3 | ||
BUSY = 4 | ||
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def copyarray(dest, offset, src): | ||
for i in range(len(src)): | ||
dest[offset + i] = src[i] | ||
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class Mcu: | ||
def __init__(self): | ||
self._fw_major = [0, 3] | ||
self._fw_minor = [0, 5] | ||
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self._bytes = [0] * 313 | ||
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self._action = Action.NON | ||
self._state = McuState.NOT_INITIALIZED | ||
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self._nfc_content = None | ||
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def get_fw_major(self): | ||
return self._fw_major | ||
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def get_fw_minor(self): | ||
return self._fw_minor | ||
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def set_action(self, v): | ||
self._action = v | ||
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def get_action(self): | ||
return self._action | ||
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def set_state(self, v): | ||
self._state = v | ||
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def get_state(self): | ||
return self._state | ||
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def _get_state_byte(self): | ||
if self.get_state() == McuState.NFC: | ||
return 4 | ||
elif self.get_state() == McuState.BUSY: | ||
return 6 | ||
elif self.get_state() == McuState.NOT_INITIALIZED: | ||
return 1 | ||
elif self.get_state() == McuState.STAND_BY: | ||
return 1 | ||
else: | ||
return 0 | ||
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def update_status(self): | ||
self._bytes[0] = 1 | ||
self._bytes[1] = 0 | ||
self._bytes[2] = 0 | ||
self._bytes[3] = self._fw_major[0] | ||
self._bytes[4] = self._fw_major[1] | ||
self._bytes[5] = self._fw_minor[0] | ||
self._bytes[6] = self._fw_minor[1] | ||
self._bytes[7] = self._get_state_byte() | ||
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def update_nfc_report(self): | ||
self._bytes = [0] * 313 | ||
if self.get_action() == Action.REQUEST_STATUS: | ||
self._bytes[0] = 1 | ||
self._bytes[1] = 0 | ||
self._bytes[2] = 0 | ||
self._bytes[3] = self._fw_major[0] | ||
self._bytes[4] = self._fw_major[1] | ||
self._bytes[5] = self._fw_minor[0] | ||
self._bytes[6] = self._fw_minor[1] | ||
self._bytes[7] = self._get_state_byte() | ||
elif self.get_action() == Action.NON: | ||
self._bytes[0] = 0xff | ||
elif self.get_action() == Action.START_TAG_DISCOVERY: | ||
self._bytes[0] = 0x2a | ||
self._bytes[1] = 0 | ||
self._bytes[2] = 5 | ||
self._bytes[3] = 0 | ||
self._bytes[4] = 0 | ||
self._bytes[5] = 9 | ||
self._bytes[6] = 0x31 | ||
self._bytes[7] = 0 | ||
elif self.get_action() == Action.START_TAG_POLLING: | ||
self._bytes[0] = 0x2a | ||
self._bytes[1] = 0 | ||
self._bytes[2] = 5 | ||
self._bytes[3] = 0 | ||
self._bytes[4] = 0 | ||
if not self._nfc_content is None: | ||
data = [0x09, 0x31, 0x09, 0x00, 0x00, 0x00, 0x01, 0x01, 0x02, 0x00, 0x07] | ||
copyarray(self._bytes, 5, data) | ||
copyarray(self._bytes, 5 + len(data), self._nfc_content[0:3]) | ||
copyarray(self._bytes, 5 + len(data) + 3, self._nfc_content[4:8]) | ||
else: | ||
print('nfc content is none') | ||
self._bytes[5] = 9 | ||
self._bytes[6] = 0x31 | ||
self._bytes[7] = 0 | ||
elif self.get_action() == Action.READ_TAG or self.get_action() == Action.READ_TAG_2: | ||
self._bytes[0] = 0x3a | ||
self._bytes[1] = 0 | ||
self._bytes[2] = 7 | ||
if self.get_action() == Action.READ_TAG: | ||
data1 = bytes.fromhex('010001310200000001020007') | ||
copyarray(self._bytes, 3, data1) | ||
copyarray(self._bytes, 3 + len(data1), self._nfc_content[0:3]) | ||
copyarray(self._bytes, 3 + len(data1) + 3, self._nfc_content[4:8]) | ||
data2 = bytes.fromhex('000000007DFDF0793651ABD7466E39C191BABEB856CEEDF1CE44CC75EAFB27094D087AE803003B3C7778860000') | ||
copyarray(self._bytes, 3 + len(data1) + 3 + 4, data2) | ||
copyarray(self._bytes, 3 + len(data1) + 3 + 4 + len(data2), self._nfc_content[0:245]) | ||
self.set_action(Action.READ_TAG_2) | ||
else: | ||
data = bytes.fromhex('02000927') | ||
copyarray(self._bytes, 3, data) | ||
copyarray(self._bytes, 3 + len(data), self._nfc_content[245:]) | ||
self.set_action(Action.READ_FINISHED) | ||
elif self.get_action() == Action.READ_FINISHED: | ||
self._bytes[0] = 0x2a | ||
self._bytes[1] = 0 | ||
self._bytes[2] = 5 | ||
self._bytes[3] = 0 | ||
self._bytes[4] = 0 | ||
data = bytes.fromhex('0931040000000101020007') | ||
copyarray(self._bytes, 5, data) | ||
copyarray(self._bytes, 5 + len(data), self._nfc_content[0:3]) | ||
copyarray(self._bytes, 5 + len(data) + 3, self._nfc_content[4:8]) | ||
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crc = crc8() | ||
crc.update(bytes(self._bytes[:-1])) | ||
self._bytes[-1] = ord(crc.digest()) | ||
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def set_nfc(self, nfc_content): | ||
self._nfc_content = nfc_content | ||
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def __bytes__(self): | ||
return bytes(self._bytes) |
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