def load(self, data):
"""
Parses data buffer to set member variables.
data : list of bytes
Raises exception when parsing fails.
"""
streamBuf = BufferReader(data)
self.count = streamBuf.getUInt32()
self.timestamp = streamBuf.getUInt32()
def load(self, data):
"""
Parses data buffer to set member variables.
data : list of bytes
Raises exception when parsing fails.
"""
streamBuf = BufferReader(data)
self.minStackEnd = streamBuf.getUInt32()
self.maxHeapEnd = streamBuf.getUInt32()
self.minFree = streamBuf.getUInt32()
self.numSbrkFails = streamBuf.getUInt32()
def _parseErrorPacket(packet, reader: BufferReader):
packet.crownstoneId = reader.getUInt8()
packet.errorsBitmask = AdvCrownstoneErrorBitmask(reader.getUInt32())
packet.errorTimestamp = reader.getUInt32()
packet.flags = AdvFlags(reader.getUInt8())
packet.temperature = reader.getInt8()
partialTimestamp = reader.getUInt16()
packet.uniqueIdentifier = partialTimestamp
if packet.flags.timeIsSet:
packet.timestamp = reconstructTimestamp(time.time(), partialTimestamp)
else:
packet.timestamp = partialTimestamp # this is now a counter
def _parse(self, reader: BufferReader):
self.buildVersion = reader.getUInt32()
self.sdkVersion.parse(reader)
self.checksum = reader.getUInt16()
self.checksumHeader = reader.getUInt16()
self.tests.parse(reader)
self.functionTrying = reader.getUInt8()
self.functionFailed = reader.getUInt8()
self.functionsPassed = []
functionsPassed = reader.getUInt32()
for i in range(0, 32):
if functionsPassed & (1 << i):
self.functionsPassed.append(i)
def _parse(self, reader: BufferReader):
self.fileNameHash = reader.getUInt32()
self.lineNr = reader.getUInt16()
self.logLevel = reader.getUInt8()
flags = reader.getUInt8()
self.newLine = (flags & (1 << 0)) != 0
def fromBuffer(self, buf: list):
reader = BufferReader(buf)
self.sdkVersionMajor = reader.getUInt8()
self.sdkVersionMinor = reader.getUInt8()
self.size = reader.getUInt16()
self.checksum = reader.getUInt16()
self.checksumHeader = reader.getUInt16()
self.appBuildVersion = reader.getUInt32()
self.startOffset = reader.getUInt16()
self.reserved = reader.getUInt16()
self.reserved2 = reader.getUInt32()
def _deserialize(self, reader: BufferReader):
self.commandProtocolVersion = reader.getUInt8()
self.masterVersion = reader.getUInt16()
self.masterCrc = reader.getUInt32()
self.freeSpace = reader.getUInt16()
self.summaries.clear()
while reader.getRemainingByteCount():
self.summaries.append(FilterSummaryPacket(reader))
def _deserialize(self, reader: BufferReader): self.fileNameHash = reader.getUInt32() self.lineNr = reader.getUInt16() self.logLevel = reader.getUInt8() flags = reader.getUInt8() self.newLine = (flags & (1 << 0)) != 0 self.reverse = (flags & (1 << 1)) != 0
def load(self, data):
if len(data) == 16:
payload = BufferReader(data)
self.validation = payload.getUInt32()
self.protocol = payload.getUInt8()
self.sessionNonce = payload.getBytes(5)
self.validationKey = payload.getBytes(4)
else:
self.valid = False
def load(self, data): """ Parses data buffer to set member variables. data : list of bytes Raises exception when parsing fails. """ streamBuf = BufferReader(data) self.timestamp = streamBuf.getUInt32() self.switchCommand = streamBuf.getUInt8() self.switchState = SwitchState(streamBuf.getUInt8()) self.source = CommandSourcePacket(streamBuf.getBytes(CommandSourcePacket.size()))
def fromData(self, data):
if len(data) != 13:
self.valid = False
return self
payload = BufferReader(data)
firstByte = payload.getUInt8()
if not BehaviourPresenceType.has_value(firstByte):
self.valid = False
return self
self.behaviourType = BehaviourPresenceType(firstByte)
self.locationIds = self.unpackMask(payload.getUInt64())
self.delayInSeconds = payload.getUInt32()
return self
def parseAlternativeState(reader: BufferReader):
packet = AdvAlternativeState()
packet.crownstoneId = reader.getUInt8()
packet.switchState = SwitchState(reader.getUInt8())
packet.flags = AdvFlags(reader.getUInt8())
packet.behaviourMasterHash = reader.getUInt16()
packet.assetFilterMasterVersion = reader.getUInt16()
packet.assetFilterMasterCRC = reader.getUInt32()
partialTimestamp = reader.getUInt16()
reader.skip()
packet.validation = reader.getUInt8()
packet.uniqueIdentifier = partialTimestamp
if packet.flags.timeIsSet:
packet.timestamp = reconstructTimestamp(time.time(), partialTimestamp)
else:
packet.timestamp = partialTimestamp # this is now a counter
return packet
def load(self, data): """ Parses data buffer to set member variables. data : list of bytes Raises exception when parsing fails. """ streamBuf = BufferReader(data) samplesTypeVal = streamBuf.getUInt8() self.samplesType = PowerSamplesType(samplesTypeVal) # Throws exception of value is not in enum self.index = streamBuf.getUInt8() self.count = streamBuf.getUInt16() self.timestamp = streamBuf.getUInt32() self.delayUs = streamBuf.getUInt16() self.sampleIntervalUs = streamBuf.getUInt16() streamBuf.skip(2) self.offset = streamBuf.getInt16() self.multiplier = streamBuf.getFloat() self.samples = [] for i in range(0, self.count): self.samples.append(streamBuf.getInt16())
def parseSetupState(reader: BufferReader):
packet = AdvCrownstoneSetupState()
packet.switchState = SwitchState(reader.getUInt8())
packet.flags = AdvFlags(reader.getUInt8())
packet.temperature = reader.getInt8()
powerFactor = reader.getInt8()
realPower = reader.getInt16()
packet.powerFactor = float(powerFactor) / 127.0
# we cannot have a 0 for a power factor.To avoid division by 0, we set it to be either 0.01 or -0.01
if 0 <= packet.powerFactor < 0.01:
packet.powerFactor = 0.01
elif -0.01 < packet.powerFactor < 0:
packet.powerFactor = -0.01
packet.powerUsageReal = float(realPower) / 8.0
packet.powerUsageApparent = packet.powerUsageReal / packet.powerFactor
packet.errorsBitmask = AdvCrownstoneErrorBitmask(reader.getUInt32())
packet.uniqueIdentifier = reader.getUInt8()
return packet
def _deserialize(self, reader: BufferReader):
self.id = reader.getUInt8()
self.crc = reader.getUInt32()
def _getElementValues(
self,
elementType: int, # TODO: make enum
elementSize: int,
elementData: list) -> list:
bufferReader = BufferReader(elementData)
dataSize = len(elementData)
if dataSize % elementSize != 0:
_LOGGER.warning(
f"Remaining data with element size of {elementSize} and element data of size {dataSize}"
)
return []
vals = []
numElements = int(dataSize / elementSize)
_LOGGER.debug(
f"dataSize={dataSize} elementSize={elementSize} numElements={numElements}"
)
for i in range(0, numElements):
if elementType == 0:
# Signed integer
if elementSize == 1:
vals.append(bufferReader.getInt8())
elif elementSize == 2:
vals.append(bufferReader.getInt16())
elif elementSize == 4:
vals.append(bufferReader.getInt32())
elif elementSize == 8:
vals.append(bufferReader.getInt64())
else:
_LOGGER.warning(
f"Unknown type: element with type {elementType} and size {elementSize}"
)
return []
elif elementType == 1:
# Unsigned integer
if elementSize == 1:
vals.append(bufferReader.getUInt8())
elif elementSize == 2:
vals.append(bufferReader.getUInt16())
elif elementSize == 4:
vals.append(bufferReader.getUInt32())
elif elementSize == 8:
vals.append(bufferReader.getUInt64())
else:
_LOGGER.warning(
f"Unknown type: element with type {elementType} and size {elementSize}"
)
return []
elif elementType == 2:
# Floating point
if elementSize == 4:
vals.append(bufferReader.getFloat())
else:
_LOGGER.warning(
f"Unknown type: element with type {elementType} and size {elementSize}"
)
return []
return vals
