def discover_devices(ip_address = None):
global device_list, the_first_device, mac_byte_map, ip_address_map
# Reset all maps and lists
device_list = []
ip_address_map = {}
mac_byte_map = {}
# First create the initial device for discovery.
# If our client wants to discover devices only on a specific IP address,
# use that to create a new broadcast device.
if (ip_address != None):
specified_device = Device(
ip_address = ip_address,
id = CHAIN_INITIATOR_ID,
frame_size_limit = MIN_FRAME_SIZE,
client_socket = client_socket)
try:
frame_list = specified_device.send_frame(DISCOVER_REQUEST);
except RuntimeError, e:
print(str(e))
raise DeviceError("No reponse to discover frame.")
def setup_socket():
# Bind to localhost
client_socket.bind(('', CLIENT_PORT))
client_socket.settimeout(RETRY_TIMEOUT)
#------------------------------------------------------------------------------
def teardown_socket():
client_socket.close()
###############################################################################
# Module initialisatiovn code
import sequencer.firmware
from sequencer.ptp.devices import Device
broadcast_device = Device(
id = CHAIN_INITIATOR_ID,
frame_size_limit = sequencer.firmware.current_params.frame_size_limit,
client_socket = client_socket)
device_list = []
ip_address_map = {}
mac_byte_map = {}
the_first_device = None
#this_device = None
#------------------------------------------------------------------------------
def discover_devices(ip_address = None):
global device_list, the_first_device, mac_byte_map, ip_address_map
# Reset all maps and lists
device_list = []