| # 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 |
