def get_global_register_bitsets(self, register_addresses): # TOTO: add sorting
"""Calculating register bitsets from register addresses.
Usage: get_global_register_bitsets([regaddress_1, regaddress_2, ...])
Receives: list of register addresses
Returns: list of register bitsets
"""
register_bitsets = []
for register_address in register_addresses:
register_objects = self.get_global_register_objects(addresses=register_address)
register_bitset = bitarray(16, endian='little') # TODO remove hardcoded register size, see also below
register_bitset.setall(0)
register_littleendian = False
for register_object in register_objects:
if register_object['register_littleendian']: # check for register endianness
register_littleendian = True
if (16 * register_object['address'] + register_object['offset'] < 16 * (register_address + 1) and 16 * register_object['address'] + register_object['offset'] + register_object['bitlength'] > 16 * register_address):
reg = register_utils.bitarray_from_value(value=register_object['value'], size=register_object['bitlength'])
if register_object['littleendian']:
reg.reverse()
# register_bitset[max(0, 16 * (register_object['address'] - register_address) + register_object['offset']):min(16, 16 * (register_object['address'] - register_address) + register_object['offset'] + register_object['bitlength'])] |= reg[max(0, 16 * (register_address - register_object['address']) - register_object['offset']):min(register_object['bitlength'], 16 * (register_address - register_object['address'] + 1) - register_object['offset'])] # [ bit(n) bit(n-1)... bit(0) ]
register_bitset[max(0, 16 - 16 * (register_object['address'] - register_address) - register_object['offset'] - register_object['bitlength']):min(16, 16 - 16 * (register_object['address'] - register_address) - register_object['offset'])] |= reg[max(0, register_object['bitlength'] - 16 - 16 * (register_address - register_object['address']) + register_object['offset']):min(register_object['bitlength'], register_object['bitlength'] + 16 - 16 * (register_address - register_object['address'] + 1) + register_object['offset'])] # [ bit(0)... bit(n-1) bit(n) ]
else:
raise Exception("wrong register object")
if register_littleendian:
register_bitset.reverse()
register_bitsets.append(register_bitset)
return register_bitsets
def build_command(self, command_name, **kwargs):
"""build command from command_name and keyword values
Returns
-------
command_bitvector : list
List of bitarrays.
Usage
-----
Receives: command name as defined inside xml file, key-value-pairs as defined inside bit stream filed for each command
"""
# command_name = command_name.lower()
command_bitvector = bitarray(0, endian='little')
if command_name not in self.commands:
raise ValueError('Unknown command %s' % command_name)
command_object = self.commands[command_name]
command_parts = re.split(r'\s*[+]\s*', command_object['bitstream'])
# for index, part in enumerate(command_parts, start = 1): # loop over command parts
for part in command_parts: # loop over command parts
try:
command_part_object = self.commands[part]
except KeyError:
command_part_object = None
if command_part_object and 'bitstream' in command_part_object: # command parts of defined content and length, e.g. Slow, ...
if string_is_binary(command_part_object['bitstream']):
command_bitvector += bitarray(
command_part_object['bitstream'], endian='little')
else:
command_bitvector += self.build_command(part, **kwargs)
elif command_part_object: # Command parts with any content of defined length, e.g. ChipID, Address, ...
if part in kwargs:
value = kwargs[part]
else:
raise ValueError('Value of command part %s not given' %
part)
try:
command_bitvector += value
except TypeError: # value is no bitarray
if string_is_binary(value):
value = int(value, 2)
try:
command_bitvector += register_utils.bitarray_from_value(
value=int(value),
size=command_part_object['bitlength'],
fmt='I')
except:
raise TypeError("Type of value not supported")
elif string_is_binary(part):
command_bitvector += bitarray(part, endian='little')
# elif part in kwargs.keys():
# command_bitvector += kwargs[command_name]
else:
raise ValueError("Cannot process command part %s" % part)
if command_bitvector.length() != command_object['bitlength']:
raise ValueError("Command has unexpected length")
if command_bitvector.length() == 0:
raise ValueError("Command has length 0")
return command_bitvector
def set_chip_address(self, chip_address):
if 7 < chip_address < 0:
raise ValueError('Chip address out of range: %i' % chip_address)
self.chip_id_initialized = True
self.chip_address = chip_address
self.chip_id = chip_address
if self.broadcast:
self.chip_id += 0x8
self.chip_id_bitarray = register_utils.bitarray_from_value(value=self.chip_id, size=4, fmt='I')
logging.info('Setting chip address to %d (broadcast bit %s)', self.chip_address, 'set' if self.broadcast else 'not set')
def build_command(self, command_name, **kwargs):
"""build command from command_name and keyword values
Returns
-------
command_bitvector : list
List of bitarrays.
Usage
-----
Receives: command name as defined inside xml file, key-value-pairs as defined inside bit stream filed for each command
"""
# command_name = command_name.lower()
command_bitvector = bitarray(0, endian='little')
if command_name not in self.commands:
raise ValueError('Unknown command %s' % command_name)
command_object = self.commands[command_name]
command_parts = re.split(r'\s*[+]\s*', command_object['bitstream'])
# for index, part in enumerate(command_parts, start = 1): # loop over command parts
for part in command_parts: # loop over command parts
try:
command_part_object = self.commands[part]
except KeyError:
command_part_object = None
if command_part_object and 'bitstream'in command_part_object: # command parts of defined content and length, e.g. Slow, ...
if string_is_binary(command_part_object['bitstream']):
command_bitvector += bitarray(command_part_object['bitstream'], endian='little')
else:
command_bitvector += self.build_command(part, **kwargs)
elif command_part_object: # Command parts with any content of defined length, e.g. ChipID, Address, ...
if part in kwargs:
value = kwargs[part]
else:
raise ValueError('Value of command part %s not given' % part)
try:
command_bitvector += value
except TypeError: # value is no bitarray
if string_is_binary(value):
value = int(value, 2)
try:
command_bitvector += register_utils.bitarray_from_value(value=int(value), size=command_part_object['bitlength'], fmt='I')
except:
raise TypeError("Type of value not supported")
elif string_is_binary(part):
command_bitvector += bitarray(part, endian='little')
# elif part in kwargs.keys():
# command_bitvector += kwargs[command_name]
else:
raise ValueError("Cannot process command part %s" % part)
if command_bitvector.length() != command_object['bitlength']:
raise ValueError("Command has unexpected length")
if command_bitvector.length() == 0:
raise ValueError("Command has length 0")
return command_bitvector
