def dump_pd_all(pd, num_packets):
packetnum = 0
print "index,time(us),PD,cc,status,sop,header,data0 ... dataN,crc"
print " or"
print "index,time(us),PD_IV,type,value"
while (num_packets <= 0 or packetnum < num_packets):
ret, info, pl, header, crc, data = pd_py.pd_usbpd_read_data(pd, 512)
if ret != pd_py.PD_READ_EMPTY:
if ret < 0:
print('Failed to capture PD on port: %d(%s)' %
(ret, pd_py.pd_status_string(ret)))
break
print_pd_packets(packetnum, info, pl, header, crc, data)
packetnum += 1
ret, info, val = pd_py.pd_usbpd_read_iv(pd)
if ret != pd_py.PD_READ_EMPTY:
if ret < 0:
print('Failed to capture PD on port: %d(%s)' %
(ret, pd_py.pd_status_string(ret)))
break
print_pd_iv(packetnum, info, val)
packetnum += 1
def detect_pd():
print "Searching for Power Delivery Analyzers..."
# Find all the attached devices
ret = pd_py.pd_find_devices_ext(16, 16)
if type(ret) is int:
print "Unable to find: %d(%s)" % (ret, pd_py.pd_status_string(ret))
exit(0)
(num, ports, unique_ids) = ret
if num > 0:
print "%d device(s) found:" % num
# Print the information on each device
for i in range(num):
port = ports[i]
unique_id = unique_ids[i]
# Determine if the device is in-use
inuse = "(avail)"
if (port & pd_py.PD_PORT_NOT_FREE):
inuse = "(in-use)"
port = port & ~pd_py.PD_PORT_NOT_FREE
# Display device port number, in-use status, and serial number
print " port = %d %s (%04d-%06d)" % \
(port, inuse, unique_id / 1000000, unique_id % 1000000)
else:
print "No devices found."
return ports, unique_ids
def dump_pd_data(pd, num_packets):
packetnum = 0
print "index,time(us),PD,cc,status,sop,header,data0 ... dataN,crc"
while (num_packets <= 0 or packetnum < num_packets):
# maximum bit length of USB PD v3.0 is 2769 bits = 347 bytes
ret, info, pl, header, crc, data = pd_py.pd_usbpd_read_data(pd, 512)
if ret == pd_py.PD_READ_EMPTY:
continue
if ret < 0:
print('Failed to capture PD on port: %d(%s)' %
(ret, pd_py.pd_status_string(ret)))
break
print_pd_packets(packetnum, info, pl, header, crc, data)
packetnum += 1
def dump_pd_raw(pd, num_packets):
packetnum = 0
print "index,time(us),PD,status,cc,preamble,bits"
while (num_packets <= 0 or packetnum < num_packets):
# maximum bit length of USB PD v3.0 is 2769 bits = 347 bytes
ret, info, bl, pl, bits = pd_py.pd_usbpd_read_bits(pd, 512)
if ret == pd_py.PD_READ_EMPTY:
continue
if ret < 0:
print('Failed to capture PD on port: %d(%s)' %
(ret, pd_py.pd_status_string(ret)))
break
print_bits(packetnum, info, bits, pl, bl)
packetnum += 1
def capture_usbpd(port=0, mode='iv', num=10, debug=0):
'''
if (len(sys.argv) < 3):
print_usage()
sys.exit()
port = int(sys.argv[1])
mode = sys.argv[2]
num = int(sys.argv[3]) if len(sys.argv) == 4 else 0
'''
data = []
# Open the device
pd = pd_py.pd_open(port)
if (pd <= 0):
print('Unable to open PD Analyzer on port %d: %d(%s)' %
(port, pd, pd_py.pd_status_string(pd)))
sys.exit(1)
print 'Opened PD Analyzer on port %d' % port
# Start capture
pd_py.pd_capture_start(pd)
print 'Start capturing'
if mode == 'raw':
dump_pd_raw(num)
if mode == 'data':
dump_pd_data(num)
if mode == 'iv':
data = dump_pd_iv(pd, num, debug)
if mode == 'all':
dump_pd_all(num)
# Stop capture
pd_py.pd_capture_stop(pd)
# Close the device
pd_py.pd_close(pd)
return data
def dump_pd_iv(pd, num_packets, debug):
packetnum = 0
data = []
print "index,time(us),PD_IV,type,value"
while (num_packets <= 0 or packetnum < num_packets):
ret, info, val, real_time = pd_py.pd_usbpd_read_iv(pd)
if ret == pd_py.PD_READ_EMPTY:
continue
if ret < 0:
print('Failed to capture PD on port: %d(%s)' %
(ret, pd_py.pd_status_string(ret)))
break
# Create a list of lists with single data points
data.append(print_pd_iv(packetnum, info, val, debug, real_time))
packetnum += 1
return data