mbed-os/TESTS/host_tests/pyusb_basic.py

1012 lines
38 KiB
Python

"""
mbed SDK
Copyright (c) 2018-2018 ARM Limited
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""
from __future__ import print_function
from mbed_host_tests import BaseHostTest
from argparse import ArgumentParser
import time
import sys
import inspect
from threading import Thread
import usb.core
from usb.util import build_request_type
from usb.util import CTRL_OUT, CTRL_IN
from usb.util import CTRL_TYPE_STANDARD, CTRL_TYPE_CLASS, CTRL_TYPE_VENDOR
from usb.util import (CTRL_RECIPIENT_DEVICE, CTRL_RECIPIENT_INTERFACE,
CTRL_RECIPIENT_ENDPOINT, CTRL_RECIPIENT_OTHER)
from usb.util import (DESC_TYPE_DEVICE, DESC_TYPE_CONFIG, DESC_TYPE_STRING,
DESC_TYPE_INTERFACE, DESC_TYPE_ENDPOINT)
import struct
from collections import namedtuple
def get_interface(dev, interface, alternate=0):
intf = None
for active_if in dev.get_active_configuration():
if active_if.bInterfaceNumber == interface and active_if.bAlternateSetting == alternate:
assert intf is None, "duplicate interface"
intf = active_if
return intf
VENDOR_TEST_CTRL_IN = 1
VENDOR_TEST_CTRL_OUT = 2
VENDOR_TEST_CTRL_NONE = 3
VENDOR_TEST_CTRL_IN_DELAY = 4
VENDOR_TEST_CTRL_OUT_DELAY = 5
VENDOR_TEST_CTRL_NONE_DELAY = 6
VENDOR_TEST_CTRL_IN_STATUS_DELAY = 7
VENDOR_TEST_CTRL_OUT_STATUS_DELAY = 8
VENDOR_TEST_CTRL_IN_SIZES = 9
VENDOR_TEST_CTRL_OUT_SIZES = 10
VENDOR_TEST_UNSUPPORTED_REQUEST = 32
REQUEST_GET_STATUS = 0
REQUEST_CLEAR_FEATURE = 1
REQUEST_SET_FEATURE = 3
REQUEST_SET_ADDRESS = 5
REQUEST_GET_DESCRIPTOR = 6
REQUEST_SET_DESCRIPTOR = 7
REQUEST_GET_CONFIGURATION = 8
REQUEST_SET_CONFIGURATION = 9
REQUEST_GET_INTERFACE = 10
REQUEST_SET_INTERFACE = 11
REQUEST_SYNCH_FRAME = 12
FEATURE_ENDPOINT_HALT = 0
FEATURE_DEVICE_REMOTE_WAKEUP = 1
DEVICE_QUALIFIER_DESC_SIZE = 10
DESC_TYPE_DEVICE_QUALIFIER = 0x06
DEVICE_DESC_SIZE = 18
device_descriptor_parser = struct.Struct('BBHBBBBHHHBBBB')
device_descriptor_keys = ['bLength', 'bDescriptorType', 'bcdUSB', 'bDeviceClass',
'bDeviceSubClass', 'bDeviceProtocol', 'bMaxPacketSize0',
'idVendor', 'idProduct', 'bcdDevice', 'iManufacturer',
'iProduct', 'iSerialNumber', 'bNumConfigurations']
CONFIGURATION_DESC_SIZE = 9
configuration_descriptor_parser = struct.Struct('BBHBBBBB')
configuration_descriptor_keys = ['bLength', 'bDescriptorType', 'wTotalLength',
'bNumInterfaces', 'bConfigurationValue',
'iConfiguration', 'bmAttributes', 'bMaxPower']
INTERFACE_DESC_SIZE = 9
interface_descriptor_parser = struct.Struct('BBBBBBBBB')
interface_descriptor_keys = ['bLength', 'bDescriptorType', 'bInterfaceNumber',
'bAlternateSetting', 'bNumEndpoints',
'bInterfaceClass', 'bInterfaceSubClass',
'bInterfaceProtocol', 'iInterface']
ENDPOINT_DESC_SIZE = 7
interface_descriptor_parser = struct.Struct('BBBBBHB')
interface_descriptor_keys = ['bLength', 'bDescriptorType', 'bEndpointAddress',
'bmAttributes', 'wMaxPacketSize', 'bInterval']
class PyusbBasicTest(BaseHostTest):
def _callback_control_basic_test(self, key, value, timestamp):
serial_number, vendor_id, product_id = value.split(' ')
self.log("Received serial %s" % (serial_number))
self.log("Received vendor_id %s" % (vendor_id))
self.log("Received product_id %s" % (product_id))
dev = self.find_device(serial_number)
if(dev == None):
return
try:
control_basic_test(dev, int(vendor_id), int(product_id), log=print)
self.report_success()
except (RuntimeError) as exc:
self.report_error(exc)
def _callback_control_stall_test(self, key, value, timestamp):
self.log("Received serial %s" % (value))
dev = self.find_device(value)
if(dev == None):
return
try:
control_stall_test(dev, log=print)
self.report_success()
except (RuntimeError) as exc:
self.report_error(exc)
def _callback_control_sizes_test(self, key, value, timestamp):
self.log("Received serial %s" % (value))
dev = self.find_device(value)
if(dev == None):
return
try:
control_sizes_test(dev, log=print)
self.report_success()
except (RuntimeError) as exc:
self.report_error(exc)
def _callback_control_stress_test(self, key, value, timestamp):
self.log("Received serial %s" % (value))
dev = self.find_device(value)
if(dev == None):
return
try:
control_stress_test(dev, log=print)
self.report_success()
except (RuntimeError) as exc:
self.report_error(exc)
def _callback_device_reset_test(self, key, value, timestamp):
self.log("Received serial %s" % (value))
dev = self.find_device(value)
if(dev == None):
return
try:
self.device_reset_test.send(dev)
self.report_success()
except (RuntimeError) as exc:
self.report_error(exc)
def _callback_device_soft_reconnection_test(self, key, value, timestamp):
self.log("Received serial %s" % (value))
dev = self.find_device(value)
if(dev == None):
return
try:
self.device_soft_reconnection_test.send(dev)
self.report_success()
except (RuntimeError) as exc:
self.report_error(exc)
def _callback_device_suspend_resume_test(self, key, value, timestamp):
self.log("Received serial %s" % (value))
dev = self.find_device(value)
if(dev == None):
return
try:
self.device_suspend_resume_test.send(dev)
self.report_success()
except (RuntimeError) as exc:
self.report_error(exc)
def _callback_repeated_construction_destruction_test(self, key, value, timestamp):
self.log("Received serial %s" % (value))
dev = self.find_device(value)
if(dev == None):
return
try:
self.repeated_construction_destruction_test.send(dev)
self.report_success()
except (RuntimeError) as exc:
self.report_error(exc)
def _callback_reset_support(self, key, value, timestamp):
status = "false" if sys.platform == "darwin" else "true"
self.log("Reset supported: %s" % status)
self.send_kv("placeholder", status)
def find_device(self, serial_number):
# to make it more reliable, 20 retries in 2[s]
for _ in range(20):
dev = usb.core.find(custom_match=TestMatch(serial_number))
if dev is not None:
break
time.sleep(0.1)
if dev is None:
self.log("Device not found")
self.send_kv("failed", "0")
return dev
def report_success(self):
self.send_kv("pass", "0")
def report_error(self, msg):
self.log('TEST FAILED: {}'.format(msg))
self.send_kv("failed", "0")
def setup(self):
self.__result = False
self.device_reset_test = device_reset_test(log=print)
self.device_reset_test.send(None)
self.device_soft_reconnection_test = device_soft_reconnection_test(log=print)
self.device_soft_reconnection_test.send(None)
self.device_suspend_resume_test = device_suspend_resume_test(log=print)
self.device_suspend_resume_test.send(None)
self.repeated_construction_destruction_test = repeated_construction_destruction_test(log=print)
self.repeated_construction_destruction_test.send(None)
self.register_callback('control_basic_test', self._callback_control_basic_test)
self.register_callback('control_stall_test', self._callback_control_stall_test)
self.register_callback('control_sizes_test', self._callback_control_sizes_test)
self.register_callback('control_stress_test', self._callback_control_stress_test)
self.register_callback('device_reset_test', self._callback_device_reset_test)
self.register_callback('device_soft_reconnection_test', self._callback_device_soft_reconnection_test)
self.register_callback('device_suspend_resume_test', self._callback_device_suspend_resume_test)
self.register_callback('repeated_construction_destruction_test', self._callback_repeated_construction_destruction_test)
self.register_callback('reset_support', self._callback_reset_support)
def result(self):
return self.__result
def teardown(self):
pass
class TestMatch(object):
def __init__(self, serial):
self.serial = serial
def __call__(self, dev):
try:
return dev.serial_number == self.serial
except ValueError:
return False
def lineno():
"""Returns the current line number in our program."""
return inspect.currentframe().f_back.f_lineno
def raise_if_different(expected, actual, line, text=''):
"""Raise a RuntimeError if actual is different than expected."""
if expected != actual:
raise RuntimeError('[{}]:{}, {} Got {!r}, expected {!r}'.format(__file__, line, text, actual, expected))
def raise_unconditionally(line, text=''):
"""Raise a RuntimeError unconditionally."""
raise RuntimeError('[{}]:{}, {}'.format(__file__, line, text))
def control_basic_test(dev, vendor_id, product_id, log):
get_set_configuration_test(dev, log)
get_set_interface_test(dev, log)
get_status_test(dev, log)
set_clear_feature_test(dev, log)
get_descriptor_test(dev, vendor_id, product_id, log)
set_descriptor_test(dev, log)
def get_set_configuration_test(dev, log):
print("<<< get_set_configuration_test >>>")
# check if dafault(1) configuration set
try:
ret = usb.control.get_configuration(dev)
raise_if_different(1, ret, lineno(), "FAILED - expected first configuration set")
except usb.core.USBError as error:
print(error)
raise_unconditionally(lineno(), "FAILED - get_configuration !!!")
cfg = dev.get_active_configuration()
for intf in cfg:
usb.util.release_interface(dev, intf)
# deconfigure the device
try:
ret = dev.set_configuration(0)
except usb.core.USBError as error:
print(error)
raise_unconditionally(lineno(), "FAILED - set_configuration(0) !!!")
# check if deconfigured
try:
ret = usb.control.get_configuration(dev)
raise_if_different(0, ret, lineno(), "FAILED - expected to be deconfigured")
print("device deconfigured - OK")
except usb.core.USBError as error:
print(error)
raise_unconditionally(lineno(), "FAILED - get_active_configuration !!!")
# for every configuration
for cfg in dev:
try:
# set configuration
ret = cfg.set()
except usb.core.USBError as error:
print(error)
raise_unconditionally(lineno(), "FAILED - set configuration")
# check if configured
try:
ret = usb.control.get_configuration(dev)
raise_if_different(cfg.bConfigurationValue, ret, lineno(), "FAILED - expected {} configuration set".format(cfg.bConfigurationValue))
print("configuration {} set - OK ".format(cfg.bConfigurationValue))
except usb.core.USBError as error:
print(error)
raise_unconditionally(lineno(), "FAILED - get_configuration !!!")
# test control data transfer after configuration set
control_data_test(dev, [64, 256], log)
print("") # new line
def get_set_interface_test(dev, log):
print("<<< get_set_interface_test >>>")
# for every configuration
for cfg in dev:
cfg.set()
# for every interface
for intf in cfg:
intf.set_altsetting();
altsett = usb.control.get_interface(dev, intf.bInterfaceNumber)
raise_if_different(intf.bAlternateSetting, altsett, lineno(), text='Wrong alternate setting for interface {}'.format(intf.bInterfaceNumber))
print("cfg({}) inteface {}.{} set - OK".format(cfg.bConfigurationValue, intf.bInterfaceNumber, intf.bAlternateSetting))
control_data_test(dev, [64, 256], log)
release_interfaces(dev)
restore_default_configuration(dev)
# test control data transfer after default interface restoring
control_data_test(dev, [64, 256], log)
print("") # new line
def get_status_test(dev, log):
print("<<< get_status_test >>>")
# check device status
ret = get_status(dev, CTRL_RECIPIENT_DEVICE)
# Status bits
# ret == 0b01 (D0)Self Powered
# ret == 0b10 (D1)Remote Wakeup
# (D2 - D15 reserved) Must be set to 0
if(ret < 0 or ret > 3):
raise_unconditionally(lineno(), "GET_STATUS on DEVICE failed")
# check endpoint 0 status
ret = get_status(dev, CTRL_RECIPIENT_ENDPOINT, 0)
# Status bits
# ret == 0b1 (D0)endpoint Halt
# (D1 - D15 reserved) Must be set to 0
# endpoint 0 can't be halted ret == 0
raise_if_different(0, ret, lineno(), "GET_STATUS on ENDPOINT 0 should return 0")
# for every configuration
for cfg in dev:
cfg.set()
raise_if_different(cfg.bConfigurationValue, usb.control.get_configuration(dev), lineno(), "Configuration {} set failed".format(cfg.bConfigurationValue))
for intf in cfg:
intf.set_altsetting()
# check interface status
ret = get_status(dev, CTRL_RECIPIENT_INTERFACE, intf.bInterfaceNumber)
# Status bits
# ret == 0b0
# (D0 - D15 reserved) Must be set to 0
if(ret != 0):
raise_unconditionally(lineno(), "GET_STATUS on INTERFACE ({},{}) failed".format(intf.bInterfaceNumber, intf.bAlternateSetting))
print("cfg({}) interface {}.{} status - OK".format(cfg.bConfigurationValue, intf.bInterfaceNumber, intf.bAlternateSetting))
# on every ENDPOINT in this altsetting
for ep in intf:
ret = usb.control.get_status(dev, ep)
# Status bits
# ret == 0b1 (D0)endpoint Halt
# (D1 - D15 reserved) Must be set to 0
if(ret >= 1):
raise_unconditionally(lineno(), "GET_STATUS on ENDPOINT {} failed - endpoint halted".format(ep.bEndpointAddress))
print("cfg({}) intf({}.{}) endpoint {} status - OK".format(cfg.bConfigurationValue, intf.bInterfaceNumber, intf.bAlternateSetting, ep.bEndpointAddress))
release_interfaces(dev)
restore_default_configuration(dev)
print("") # new line
def set_clear_feature_test(dev, log):
print("<<< set_clear_feature_test >>>")
# for every configuration
for cfg in dev:
cfg.set()
raise_if_different(cfg.bConfigurationValue, usb.control.get_configuration(dev), lineno(), "Configuration {} set failed".format(cfg.bConfigurationValue))
for intf in cfg:
intf.set_altsetting()
# on every ENDPOINT
for ep in intf:
try:
usb.control.set_feature(dev, FEATURE_ENDPOINT_HALT, ep)
except usb.core.USBError as err:
print(err)
raise_unconditionally(lineno(), "endpoint {} halt failed".format(ep.bEndpointAddress))
# check if endpoint was halted
try:
ret = usb.control.get_status(dev, ep)
except usb.core.USBError as err:
print(err)
raise_unconditionally(lineno(), "endpoint status failed".format(ep.bEndpointAddress))
if(ret != 1):
raise_unconditionally(lineno(), "endpoint {} was not halted".format(ep.bEndpointAddress))
print("cfg({}) intf({}.{}) ep {} halted - OK".format(cfg.bConfigurationValue, intf.bInterfaceNumber, intf.bAlternateSetting, ep.bEndpointAddress))
# Control OUT CLEAR_FEATURE on endpoint - unhalt
try:
usb.control.clear_feature(dev, FEATURE_ENDPOINT_HALT, ep)
except usb.core.USBError as err:
print(err)
raise_unconditionally(lineno(), "endpoint {} unhalt failed".format(ep.bEndpointAddress))
# check if endpoint was unhalted
ret = usb.control.get_status(dev, ep)
if(ret != 0):
raise_unconditionally(lineno(), "endpoint {} was not unhalted".format(ep.bEndpointAddress))
print("cfg({}) intf({}.{}) ep {} unhalted - OK".format(cfg.bConfigurationValue, intf.bInterfaceNumber, intf.bAlternateSetting, ep.bEndpointAddress))
release_interfaces(dev)
restore_default_configuration(dev)
print("") # new line
def get_descriptor_test(dev, vendor_id, product_id, log):
print("<<< get_descriptor_test >>>")
# Control IN GET_DESCRIPTOR - device
try:
ret = get_descriptor(dev, (DESC_TYPE_DEVICE << 8) | (0 << 0), 0, DEVICE_DESC_SIZE)
dev_desc = dict(zip(device_descriptor_keys, device_descriptor_parser.unpack(ret)))
raise_if_different(DEVICE_DESC_SIZE, dev_desc['bLength'], lineno(), text='Wrong device descriptor size !!!')
raise_if_different(vendor_id, dev_desc['idVendor'], lineno(), text='Wrong vendor id !!!')
raise_if_different(product_id, dev_desc['idProduct'], lineno(), text='Wrong product id !!!')
except usb.core.USBError:
raise_unconditionally(lineno(), "Requesting device descriptor failed")
# Control IN GET_DESCRIPTOR - configuration
try:
ret = get_descriptor(dev, (DESC_TYPE_CONFIG << 8) | (0 << 0), 0, CONFIGURATION_DESC_SIZE)
conf_desc = dict(zip(configuration_descriptor_keys, configuration_descriptor_parser.unpack(ret)))
raise_if_different(CONFIGURATION_DESC_SIZE, conf_desc['bLength'], lineno(), text='Wrong configuration descriptor size !!!')
except usb.core.USBError:
raise_unconditionally(lineno(), "Requesting configuration descriptor failed")
# Control IN GET_DESCRIPTOR - interface
try:
ret = get_descriptor(dev, (DESC_TYPE_INTERFACE << 8) | (0 << 0), 0, INTERFACE_DESC_SIZE)
raise_unconditionally(lineno(), "Requesting interface descriptor should fail since it is not directly accessible")
except usb.core.USBError:
log("interface descriptor is not directly accessible - OK")
# Control IN GET_DESCRIPTOR - endpoint
try:
ret = get_descriptor(dev, (DESC_TYPE_ENDPOINT << 8) | (0 << 0), 0, ENDPOINT_DESC_SIZE)
raise_unconditionally(lineno(), "Requesting endpoint descriptor should fail since it is not directly accessible")
except usb.core.USBError:
log("endpoint descriptor is not directly accessible - OK")
print("") # new line
def set_descriptor_test(dev, log):
print("<<< set_descriptor_test >>>")
# SET_DESCRIPTOR is optional and not implemented in Mbed
# command should fail with no action on device side
# Control OUT SET_DESCRIPTOR
request_type = build_request_type(CTRL_OUT, CTRL_TYPE_STANDARD,
CTRL_RECIPIENT_DEVICE)
request = REQUEST_SET_DESCRIPTOR
value = (DESC_TYPE_DEVICE << 8) | (0 << 0) # Descriptor Type (H) and Descriptor Index (L)
index = 0 # 0 or Language ID for this request
data = bytearray(DEVICE_DESC_SIZE) # Descriptor data
try:
dev.ctrl_transfer(request_type, request, value, index, data)
raise_unconditionally(lineno(), "SET_DESCRIPTOR should fail since it is not implemented")
except usb.core.USBError:
log("SET_DESCRIPTOR is unsupported - OK")
print("") # new line
def synch_frame_test(dev, log):
print("<<< synch_frame_test >>>")
# only for isochronous endpoints
request_type = build_request_type(CTRL_IN, CTRL_TYPE_STANDARD,
CTRL_RECIPIENT_ENDPOINT)
request = REQUEST_SYNCH_FRAME
value = 0 # Always 0 for this request
index = 1 # Endpoint index
length = 2 # Always 2 for this request (size of return data)
try:
ret = dev.ctrl_transfer(request_type, request, value, index, length)
ret = ret[0] | (ret[1] << 8)
log("synch frame ret: %d" % (ret))
except usb.core.USBError:
raise_unconditionally(lineno(), "SYNCH_FRAME failed")
print("") # new line
def control_stall_test(dev, log):
print("<<< control_stall_test >>>")
# Control OUT stall
try:
request_type = build_request_type(CTRL_OUT, CTRL_TYPE_VENDOR,
CTRL_RECIPIENT_DEVICE)
request = VENDOR_TEST_UNSUPPORTED_REQUEST
value = 0 # Always 0 for this request
index = 0 # Communication interface
data = bytearray(64) # Dummy data
dev.ctrl_transfer(request_type, request, value, index, data, 5000)
raise_unconditionally(lineno(), "Invalid request not stalled")
except usb.core.USBError:
log("Invalid request stalled - OK")
# Control request with no data stage (Device-to-host)
try:
request_type = build_request_type(CTRL_IN, CTRL_TYPE_VENDOR,
CTRL_RECIPIENT_DEVICE)
request = VENDOR_TEST_UNSUPPORTED_REQUEST
value = 0 # Always 0 for this request
index = 0 # Communication interface
length = 0
dev.ctrl_transfer(request_type, request, value, index, length, 5000)
raise_unconditionally(lineno(), "Invalid request not stalled")
except usb.core.USBError:
log("Invalid request stalled - OK")
# Control request with no data stage (Host-to-device)
try:
request_type = build_request_type(CTRL_OUT, CTRL_TYPE_VENDOR,
CTRL_RECIPIENT_DEVICE)
request = VENDOR_TEST_UNSUPPORTED_REQUEST
value = 0 # Always 0 for this request
index = 0 # Communication interface
length = 0
dev.ctrl_transfer(request_type, request, value, index, length, 5000)
raise_unconditionally(lineno(), "Invalid request not stalled")
except usb.core.USBError:
log("Invalid request stalled - OK")
# Control IN stall
try:
request_type = build_request_type(CTRL_IN, CTRL_TYPE_VENDOR,
CTRL_RECIPIENT_DEVICE)
request = VENDOR_TEST_UNSUPPORTED_REQUEST
value = 0 # Always 0 for this request
index = 0 # Communication interface
length = 255
dev.ctrl_transfer(request_type, request, value, index, length, 5000)
raise_unconditionally(lineno(), "Invalid request not stalled")
except usb.core.USBError:
log("Invalid request stalled - OK")
for i in (3, 4, 5):
try:
request_type = build_request_type(CTRL_IN, CTRL_TYPE_STANDARD,
CTRL_RECIPIENT_DEVICE)
request = 0x6 # GET_DESCRIPTOR
value = (0x03 << 8) | (i << 0) # String descriptor index
index = 0 # Communication interface
length = 255
resp = dev.ctrl_transfer(request_type, request, value, index, length, 5000)
except usb.core.USBError:
raise_unconditionally(lineno(), "Requesting string failed i: " + str(i))
for i in (6, 7):
try:
request_type = build_request_type(CTRL_IN, CTRL_TYPE_STANDARD,
CTRL_RECIPIENT_DEVICE)
request = 0x6 # GET_DESCRIPTOR
value = (0x03 << 8) | (i << 0) # String descriptor index
index = 0 # Communication interface
length = 255
resp = dev.ctrl_transfer(request_type, request, value, index, length, 5000)
raise_unconditionally(lineno(), "Requesting string passed i: " + str(i))
except usb.core.USBError:
log("Requesting string %s failed - OK" % i)
print("") # new line
def control_sizes_test(dev, log):
list = [1, 2, 3, 7, 8, 9, 15, 16, 17, 31, 32, 33, 63, 64, 65, 127, 128, 129, 255, 256, 257, 511, 512, 513, 1023, 1024, 1025, 2047, 2048]
control_data_test(dev, list, log)
def control_data_test(dev, sizes_list, log):
# Test control requests of various data stage sizes (1,8,16,32,64,255,256,...)
count = 1
for i in sizes_list:
request_type = build_request_type(CTRL_OUT, CTRL_TYPE_VENDOR,
CTRL_RECIPIENT_DEVICE)
request = VENDOR_TEST_CTRL_OUT_SIZES
value = i # Size of data the device should actually read
index = 0 # Unused - set for debugging only
data = bytearray(i) # Dummy data
if i == 1:
data[0] = count
else:
data[0] = count - 1
data[i - 1] = count + 1
try:
dev.ctrl_transfer(request_type, request, value, index, data, 5000)
except usb.core.USBError:
raise_unconditionally(lineno(), "VENDOR_TEST_CTRL_OUT_SIZES failed ")
request_type = build_request_type(CTRL_IN, CTRL_TYPE_VENDOR,
CTRL_RECIPIENT_DEVICE)
request = VENDOR_TEST_CTRL_IN_SIZES
value = 0 # Size of data the device should actually send
index = 0 # Unused - set for debugging only
length = i
try:
ret = dev.ctrl_transfer(request_type, request, value, index, length, 5000)
if i == 1:
raise_if_different(count, ret[0], lineno(), "send/receive data not match")
else:
raise_if_different(count - 1, ret[0], lineno(), "send/receive data not match")
raise_if_different(count + 1, ret[i - 1], lineno(), "send/receive data not match")
except usb.core.USBError:
raise_unconditionally(lineno(), "VENDOR_TEST_CTRL_IN_SIZES failed")
count += 1
def control_stress_test(dev, log):
# Test various patterns of control transfers
#
# Some devices have had problems with back-to-back
# control transfers. Intentionally send these sequences
# to make sure they are properly handled.
count = 0
for _ in range(100):
# Control transfer with a data in stage
request_type = build_request_type(CTRL_IN, CTRL_TYPE_VENDOR,
CTRL_RECIPIENT_DEVICE)
request = VENDOR_TEST_CTRL_IN
value = 8 # Size of data the device should actually send
index = count # Unused - set for debugging only
length = 255
dev.ctrl_transfer(request_type, request, value, index, length, 5000)
count += 1
for _ in range(100):
# Control transfer with a data out stage followed
# by a control transfer with a data in stage
request_type = build_request_type(CTRL_OUT, CTRL_TYPE_VENDOR,
CTRL_RECIPIENT_DEVICE)
request = VENDOR_TEST_CTRL_OUT
value = 8 # Size of data the device should actually read
index = count # Unused - set for debugging only
data = bytearray(8) # Dummy data
dev.ctrl_transfer(request_type, request, value, index, data, 5000)
count += 1
request_type = build_request_type(CTRL_IN, CTRL_TYPE_VENDOR,
CTRL_RECIPIENT_DEVICE)
request = VENDOR_TEST_CTRL_IN
value = 8 # Size of data the device should actually send
index = count # Unused - set for debugging only
length = 255
dev.ctrl_transfer(request_type, request, value, index, length, 5000)
count += 1
for _ in range(100):
# Control transfer with a data out stage
request_type = build_request_type(CTRL_OUT, CTRL_TYPE_VENDOR,
CTRL_RECIPIENT_DEVICE)
request = VENDOR_TEST_CTRL_OUT
value = 8 # Size of data the device should actually read
index = count # Unused - set for debugging only
data = bytearray(8) # Dummy data
dev.ctrl_transfer(request_type, request, value, index, data, 5000)
count += 1
def device_reset_test(log):
dev = yield
dev.reset();
dev = yield
# run other test to check if USB works fine after reset
control_data_test(dev, [64, 256], log)
dev.reset();
dev = yield
# run other test to check if USB works fine after reset
control_data_test(dev, [64, 256], log)
dev.reset();
dev = yield
# run other test to check if USB works fine after reset
control_data_test(dev, [64, 256], log)
yield
def device_soft_reconnection_test(log):
list = [64, 256]
dev = yield
# run other test to check if USB works fine before reconnection
control_data_test(dev, list, log)
dev = yield
# run other test to check if USB works fine after reconnection
control_data_test(dev, list, log)
dev = yield
# run other test to check if USB works fine after reconnection
control_data_test(dev, list, log)
dev = yield
# run other test to check if USB works fine after reconnection
control_data_test(dev, list, log)
dev = yield
# run other test to check if USB works fine after reconnection
control_data_test(dev, list, log)
yield
def device_suspend_resume_test(log):
dev = yield
control_data_test(dev, [64, 256], log)
# suspend code goes here
# ...
# resume code here
# ...
# run other test to check if USB works fine after resume
control_data_test(dev, [64, 256], log)
# suspend code here
# ...
# resume code here
# ...
# run other test to check if USB works fine after resume
control_data_test(dev, [64, 256], log)
# suspend code here
# ...
# resume code here
# ...
# run other test to check if USB works fine after resume
control_data_test(dev, [64, 256], log)
yield
def repeated_construction_destruction_test(log):
list = [64, 256]
dev = yield
# run other test to check if USB works fine after repeated construction/destruction
control_data_test(dev, list, log)
dev = yield
# run other test to check if USB works fine after repeated construction/destruction
control_data_test(dev, list, log)
dev = yield
# run other test to check if USB works fine after repeated construction/destruction
control_data_test(dev, list, log)
yield
def release_interfaces(dev):
""" Releases interfaces to allow configuration switch
Fixes error while configuration change(on Windows machines):
USBError: [Errno None] libusb0-dll:err [set_configuration] can't change configuration, an interface is still in use (claimed)
"""
cfg = dev.get_active_configuration()
for i in range(0, cfg.bNumInterfaces):
usb.util.release_interface(dev, i)
def restore_default_configuration(dev):
cfg = dev[1]
cfg.set()
def get_status(dev, recipient, index = 0):
""" Get status of the recipient
Args:
dev - pyusb device
recipient - CTRL_RECIPIENT_DEVICE/CTRL_RECIPIENT_INTERFACE/CTRL_RECIPIENT_ENDPOINT
index - 0 if recipient is device, interface index if recipient is interface, endpoint index if recipient is endpoint
Returns:
status flag 32b int
"""
request_type = build_request_type(CTRL_IN, CTRL_TYPE_STANDARD,
recipient)
request = REQUEST_GET_STATUS
value = 0 # Always 0 for this request
index = index # recipient index
length = 2 # Always 2 for this request (size of return data)
ret = dev.ctrl_transfer(request_type, request, value, index, length)
ret = ret[0] | (ret[1] << 8)
return ret
def get_descriptor(dev, type_index, lang_id, length):
# Control IN GET_DESCRIPTOR - device
request_type = build_request_type(CTRL_IN, CTRL_TYPE_STANDARD,
CTRL_RECIPIENT_DEVICE)
request = REQUEST_GET_DESCRIPTOR
value = type_index # Descriptor Type (H) and Descriptor Index (L)
index = lang_id # 0 or Language ID for this request
length = length # Descriptor Length
ret = dev.ctrl_transfer(request_type, request, value, index, length)
return ret
"""
For documentation purpose until test writing finished
TODO: remove this if not needed anymore
def test_device(serial_number, log=print):
dev = usb.core.find(custom_match=TestMatch(serial_number))
if dev is None:
log("Device not found")
return
## --Control Tests-- ##
#control_basic_test(dev, log)
# Test control IN/OUT/NODATA
control_stall_test(dev, log)
# Invalid control in/out/nodata requests are stalled
# Stall during different points in the control transfer
#control_sizes_test(dev, log)
# Test control requests of various data stage sizes (1,8,16,32,64,255,256,...)
control_stress_test(dev, log)
# normal and delay mode
## --Endpoint test-- ##
#for each endpoint
#-test all allowed wMaxPacketSize sizes and transfer types
#-stall tests
#-set/clear stall control request
#-stall at random points of sending/receiveing data
#-test aborting an in progress transfer
#test as many endpoints at once as possible
#test biggest configuration possible
## --physical test-- ##
#-reset notification/handling
#-connect/disconnect tests - have device disconnect and then reconnect
#-disconnect during various phases of control transfers and endpoint transfers
#-suspend/resume tests (may not be possible to test with current framework)
#-suspend/resume notifications
## -- Stress tests-- ##
#-concurrent tests (all endpoints at once including control)
#-concurrent tests + reset + delay
## -- other tests-- ##
#-report throughput for in/out of control, bulk, interrupt and iso transfers
#-verify that construction/destruction repeatedly works gracefully
intf = get_interface(dev, 0, 0)
# Find endpoints
bulk_in = None
bulk_out = None
int_in = None
int_out = None
for endpoint in intf:
log("Processing endpoint %s" % endpoint)
ep_type = endpoint.bmAttributes & 0x3
if ep_type == 2:
if endpoint.bEndpointAddress & 0x80:
assert bulk_in is None
bulk_in = endpoint
else:
assert bulk_out is None
bulk_out = endpoint
elif ep_type == 3:
if endpoint.bEndpointAddress & 0x80:
assert int_in is None
int_in = endpoint
else:
assert int_out is None
int_out = endpoint
assert bulk_in is not None
assert bulk_out is not None
assert int_in is not None
assert int_out is not None
bulk_out.write("hello" + "x" *256);
int_out.write("world" + "x" *256);
dev.set_interface_altsetting(0, 1)
intf = get_interface(dev, 0, 0)
# Find endpoints
bulk_in = None
bulk_out = None
int_in = None
int_out = None
for endpoint in intf:
log("Processing endpoint %s" % endpoint)
ep_type = endpoint.bmAttributes & 0x3
if ep_type == 2:
if endpoint.bEndpointAddress & 0x80:
assert bulk_in is None
bulk_in = endpoint
else:
assert bulk_out is None
bulk_out = endpoint
elif ep_type == 3:
if endpoint.bEndpointAddress & 0x80:
assert int_in is None
int_in = endpoint
else:
assert int_out is None
int_out = endpoint
assert bulk_in is not None
assert bulk_out is not None
assert int_in is not None
assert int_out is not None
bulk_out.write("hello2" + "x" *256);
int_out.write("world2" + "x" *256);
t = Thread(target=write_data, args=(bulk_out,))
t.start()
for _ in range(10):
request_type = build_request_type(CTRL_OUT, CTRL_TYPE_VENDOR,
CTRL_RECIPIENT_DEVICE)
request = VENDOR_TEST_CTRL_NONE_DELAY
value = 0 # Always 0 for this request
index = 0 # Communication interface
length = 0 # No data
dev.ctrl_transfer(request_type, request, value, index, length, 5000)
t.join()
def write_data(pipe):
print("Write data running")
count = 0
for _ in range(40):
pipe.write("Value is %s" % count)
count += 1
print("Count %s" % count)
time.sleep(0.5)
def main():
parser = ArgumentParser(description="USB basic test")
parser.add_argument('serial', help='USB serial number of DUT')
args = parser.parse_args()
ret = test_device(args.serial)
print("Test %s" % "passed" if ret else "failed")
if __name__ == "__main__":
main()
"""