def format_eeprom_contents(tag_name, data_len, payload):
if data_len < 3:
return "Data too short"
address = 256 * payload[0] + payload[1]
r = "address=0x%04x " % address
if address in eeprom.eeprom_address_to_key:
setting = eeprom.eeprom_address_to_key[address]
r += "(%s) " % setting
fmt = eeprom.eeprom[setting]["format"]
order, quantity, elem_type = eeprom.parse_unpack_format(fmt)
data = struct.unpack(fmt, payload[2:])
if len(data) == 1:
data = data[0]
if elem_type == "s":
data = data.rstrip("\x00")
r += repr(data)
else:
r += "0x " + " ".join(map(byte_hex, payload[2:]))
return r
def format_eeprom_contents_inner(tag_name, address, eeprom_data, epoch):
r = 'address=0x%04x ' % address
eeprom_data_len = len(eeprom_data)
# Try to format the results appropriately if possible.
if address in eeprom.eeprom_address_to_setting_name:
# The start address matches a known address in EEPROM
setting = eeprom.eeprom_address_to_setting_name[address]
setting_info = eeprom.eeprom[setting]
# Check that the size of the EEPROM data received matches the expected length for the setting
if 'size' in setting_info:
sz = setting_info['size']
if eeprom_data_len > sz:
# Multiple settings received. Split into two parts.
r1 = format_eeprom_contents_inner(tag_name, address, eeprom_data[0:sz], epoch)
r2 = format_eeprom_contents_inner(tag_name, address + sz, eeprom_data[sz:], epoch)
r = []
if isinstance(r1, six.string_types):
r.append(r1) # Should expect in this case to always get a string
else:
r.extend(r1) # Assume a list
if isinstance(r2, six.string_types):
r.append(r2)
else:
r.extend(r2)
return r
elif eeprom_data_len < sz:
# Not the entire setting so cannot format correctly
setting = setting_info = None
else:
# Unknown start address
# TODO: check for the next start address
next_address = eeprom.find_next_address(address)
if next_address is not None: # and next_address in eeprom.eeprom_address_to_setting_name:
skip_bytes = next_address - address
next_setting_name = eeprom.eeprom_address_to_setting_name[next_address]
if 'size' in eeprom.eeprom[next_setting_name] and eeprom.eeprom[next_setting_name]['size'] <= eeprom_data_len - skip_bytes:
r1 = format_eeprom_contents_inner(tag_name, address, eeprom_data[0:skip_bytes], epoch)
r2 = format_eeprom_contents_inner(tag_name, next_address, eeprom_data[skip_bytes:], epoch)
r = []
if isinstance(r1, six.string_types):
r.append(r1) # Should expect in this case to always get a string
else:
r.extend(r1) # Assume a list
if isinstance(r2, six.string_types):
r.append(r2)
else:
r.extend(r2)
return r
setting = setting_info = None
if setting:
# Correct data for this setting
r += '(%s) ' % setting
order, quantity, elem_type = eeprom.parse_unpack_format(setting_info['format'])
data = struct.unpack(setting_info['format'], eeprom_data)
if len(data) == 1:
data = data[0]
if elem_type == 's':
data = data.rstrip('\x00')
r += repr(data)
else:
r += '(unknown %d bytes) 0x %s' % (eeprom_data_len, ' '.join(map(byte_hex, eeprom_data)))
return r
for k in aw_cmds:
s = getattr(args, k)
if s is None:
continue
cmd = { }
# If the argparse type conversion was employed then convert
# back to a string
s = str(s)
m = re.match('^eeprom_(.*)', k)
if m:
cmd['name'] = 'write_eeprom'
eeprom_setting = m.group(1)
# Parse struct format string into order, quantity, type
pfmt = eeprom.parse_unpack_format( \
eeprom.eeprom[eeprom_setting]['format'])
if pfmt[2] in ('c', 's', 'p'):
# String data
data = s
else:
# Convert into numeric data
data = awn.safe_eval(s)
# Pack data into suitable bytearrays matching the EEPROM layout
if pfmt[1] > 1 and pfmt[2] not in ('s', 'p'):
# Multiple values required
eeprom_data = struct.pack(eeprom.eeprom[eeprom_setting]['format'],
*data)
else:
eeprom_data = struct.pack(eeprom.eeprom[eeprom_setting]['format'],
data)
