def toByteCode(self): bytes = super(self.__class__, self).toByteCode() coded_modules = [codec.VALUE_TO_UNITCODE_MAP[i] for i in self.modules] modmask = utils.unmerge_bytes(utils.numbers_to_mask(coded_modules), 2) bytes.extend(modmask) return bytes
def toByteCode(self):
"""Convert the timers, macro initiators, macros, DST data,
sunrise/sunset data and everything else described by this class
into bytecode suitable for uploading to the CM15."""
mem = utils.MemoryBuffer(capacity=0x2000)
assert(0 == (self.sunrise_sunset_resolution >> 8))
mem[4] = self.sunrise_sunset_resolution & 0xFF
bytes = codec.DST_DAYS.encode(self.dst_data)
mem.setFromByteArray(5, bytes)
tranceivedHousecodeMap = dict([(k, 1) for k in self.tranceivedHousecodes])
for i in range(0,16):
c = chr(ord('A')+i)
if c not in tranceivedHousecodeMap:
tranceivedHousecodeMap[c] = 0
mem.setFromByteArray(9, codec.HOUSECODE_MASK.encode(tranceivedHousecodeMap))
# TODO: data between 0x0b and 0x18 not currently understood
ptr = 0x18
# the eeprom download seems to contain a lot of single bytes holding
# the least-significant 8 bits of their address. Presumably this
# was just a default value fill of the buffer, although these
# markers do make the rom code a bit easier for a human to read
def setLowOrderAddressByte():
mem[ptr] = ptr & 0xFF
return ptr + 1
ptr = setLowOrderAddressByte()
# write the timer initiators. Timers refer to start and stop macro
# chains, but the addresses of the macros are indirected through a
# set of 2-byte pointers stored in memory after the timer
# initiators. My guess is that this is to get around the 10-bit
# address limitation of the codec, as this scheme allows macros to
# be placed anywhere in the 16-bit address space while also
# allowing much of the original eeprom hardware from the CM12 to
# be reused.
indirect_table = dict()
indirect_table_offset = ptr + (len(self.timer_initiators) * codec.TIMER_INITIATOR.codelength)
indirect_table_offset = utils.alignToBoundary(indirect_table_offset, 4)
for t in self.timer_initiators:
hasMacroId = False
for k in ("start_macro_id", "stop_macro_id"):
if k in vars(t):
hasMacroId = True
id = vars(t)[k]
indirectPtr = indirect_table.get(id)
if indirectPtr is None:
offset = indirect_table_offset + (2 * len(indirect_table))
indirectPtr = indirect_table[id] = offset
t.start_macro_ptr = indirectPtr
assert(hasMacroId)
bytes = t.toByteCode()
ptr = mem.setFromByteArray(ptr, bytes)
ptr = setLowOrderAddressByte()
# A few bytes here which are not well understood - seems to
# contain address boundary of the macros:
ptr = mem.setFromByteArray(ptr, [0x00])
ptr = setLowOrderAddressByte()
macro_limits_offset = ptr # need to write the macro end address here
ptr += 2
# now set the offset at the start of the eeprom
macro_initiator_table_offset = ptr + (3 * len(indirect_table))
mem.setFromByteArray(0, utils.unmerge_bytes(macro_initiator_table_offset, 2))
# write the macro initiators:
ptr = macro_initiator_table_offset
for m in self.macro_initiators:
ptr = setLowOrderAddressByte()
ptr = mem.setFromByteArray(ptr, m.toByteCode())
ptr = setLowOrderAddressByte()
ptr = mem.setFromByteArray(ptr, [0xff, 0xff, 0xff])
# now write the actual macro chains:
for m in self.macro_chains:
ptr = setLowOrderAddressByte()
ptr = mem.setFromByteArray(ptr, m.toByteCode())
# go back and write the end address:
end_of_macros_address = ptr
mem.setFromByteArray(macro_limits_offset, utils.unmerge_bytes(end_of_macros_address, 2))
ptr = setLowOrderAddressByte()
ptr = mem.setFromByteArray(ptr, [0x00])
# fill the rest of this row and the next with 0xffs:
fill_address = utils.alignToBoundary(ptr, 16)
fill_address += 16
ptr = mem.setFromByteArray(ptr, [0xff for i in range(ptr, fill_address)])
# now write the sunrise/sunset times:
ptr = len(mem) - 12
for sunrise_sunset_time in reversed(self.sunrise_sunset_times):
ptr -= codec.DAWN_DUSK_ENTRY.codelength
mem.setFromByteArray(ptr, codec.DAWN_DUSK_ENTRY.encode(sunrise_sunset_time))
# write this offset into byte 2:
start_of_sunrise_sunset_table = ptr
mem.setFromByteArray(2, utils.unmerge_bytes(start_of_sunrise_sunset_table, 2))
# TODO: 12 bytes at the end of the eeprom not currently understood
return mem
def toByteCode(self): bytes = super(self.__class__, self).toByteCode() flagmask = utils.unmerge_bytes(utils.numbers_to_mask(self.flags), 2) bytes.extend(flagmask) return bytes
