blob: e03b9b9832f54f78ad9daf67beca8e5ed79531cc [file] [log] [blame] [edit]
# Copyright 2015 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import common
from autotest_lib.client.bin import utils
from autotest_lib.client.cros.cellular.mbim_compliance import mbim_channel
from autotest_lib.client.cros.cellular.mbim_compliance \
import mbim_command_message
from autotest_lib.client.cros.cellular.mbim_compliance import mbim_errors
from autotest_lib.client.cros.cellular.mbim_compliance \
import mbim_message_request
from autotest_lib.client.cros.cellular.mbim_compliance \
import mbim_message_response
from autotest_lib.client.cros.cellular.mbim_compliance \
import mbim_test_base
from autotest_lib.client.cros.cellular.mbim_compliance.sequences \
import get_descriptors_sequence
from autotest_lib.client.cros.cellular.mbim_compliance.sequences \
import mbim_open_generic_sequence
class cellular_MbimComplianceCM05(mbim_test_base.MbimTestBase):
"""
CM_05 Validation for modem's responses to two consecutive MBIM command
messages are correct with regards to |transaction_id|, |service_id| and
|cid|.
This test verifies that the function uses separate transactions to deliver
control message responses.
Reference:
[1] Universal Serial Bus Communication Class MBIM Compliance Testing: 39
http://www.usb.org/developers/docs/devclass_docs/MBIM-Compliance-1.0.pdf
"""
version = 1
def run_internal(self):
""" Run CM_05 test. """
# Precondition
descriptors = get_descriptors_sequence.GetDescriptorsSequence(
self.device_context).run()
self.device_context.update_descriptor_cache(descriptors)
mbim_open_generic_sequence.MBIMOpenGenericSequence(
self.device_context).run()
device_context = self.device_context
descriptor_cache = device_context.descriptor_cache
self.channel = mbim_channel.MBIMChannel(
device_context._device,
descriptor_cache.mbim_communication_interface.bInterfaceNumber,
descriptor_cache.interrupt_endpoint.bEndpointAddress,
device_context.max_control_transfer_size)
# Step 1
caps_command_message = mbim_command_message.MBIMDeviceCapsQuery()
caps_packets = mbim_message_request.generate_request_packets(
caps_command_message,
device_context.max_control_transfer_size)
self.caps_transaction_id = caps_command_message.transaction_id
self.channel.unidirectional_transaction(*caps_packets)
# Step 2
services_command_message = (
mbim_command_message.MBIMDeviceServicesQuery())
services_packets = mbim_message_request.generate_request_packets(
services_command_message,
device_context.max_control_transfer_size)
self.services_transaction_id = services_command_message.transaction_id
self.channel.unidirectional_transaction(*services_packets)
# Step 3
utils.poll_for_condition(
self._get_response_packets,
timeout=5,
exception=mbim_errors.MBIMComplianceChannelError(
'Failed to retrieve the response packets to specific '
'control messages.'))
self.channel.close()
caps_response_message = self.caps_response
services_response_message = self.services_response
is_caps_message_valid = isinstance(
caps_response_message,
mbim_command_message.MBIMDeviceCapsInfo)
is_services_message_valid = isinstance(
services_response_message,
mbim_command_message.MBIMDeviceServicesInfo)
if not ((is_caps_message_valid and is_services_message_valid) and
(caps_response_message.transaction_id ==
caps_command_message.transaction_id) and
(caps_response_message.device_service_id ==
caps_command_message.device_service_id) and
caps_response_message.cid == caps_command_message.cid and
(services_command_message.transaction_id ==
services_response_message.transaction_id) and
(services_command_message.device_service_id ==
services_response_message.device_service_id) and
services_command_message.cid == services_response_message.cid):
mbim_errors.log_and_raise(mbim_errors.MBIMComplianceAssertionError,
'mbim1.0:8.1.2#2')
def _get_response_packets(self):
"""
Condition method for |poll_for_condition| to check the retrieval of
target packets.
@returns True if both caps response packet and services response packet
are received, False otherwise.
"""
packets = self.channel.get_outstanding_packets()
self.caps_response = None
self.services_response = None
for packet in packets:
message_response = mbim_message_response.parse_response_packets(
packet)
if message_response.transaction_id == self.caps_transaction_id:
self.caps_response = message_response
elif message_response.transaction_id == self.services_transaction_id:
self.services_response = message_response
if self.caps_response and self.services_response:
return True
return False