| # Copyright (c) 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. |
| """ |
| MBIM_CID_DEVICE_SERVICES Sequence |
| |
| Reference: |
| [1] Universal Serial Bus Communication Class MBIM Compliance Testing: 22 |
| http://www.usb.org/developers/docs/devclass_docs/MBIM-Compliance-1.0.pdf |
| """ |
| import common |
| 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_constants |
| from autotest_lib.client.cros.cellular.mbim_compliance import mbim_control |
| from autotest_lib.client.cros.cellular.mbim_compliance import mbim_errors |
| from autotest_lib.client.cros.cellular.mbim_compliance.sequences \ |
| import sequence |
| |
| |
| class MBIMCIDDeviceServicesSequence(sequence.Sequence): |
| """ |
| Implement |MBIMCIDDeviceServicesSequence|. |
| In this sequence, cid |MBIM_CID_DEVICE_SERVICES| is used to query the device |
| services supported by the MBIM devices and their properties. |
| """ |
| |
| def run_internal(self): |
| """ Run the MBIM_CID_DEVICE_SERVICES Sequence. """ |
| # Step 1 |
| command_message = mbim_command_message.MBIMDeviceServicesQuery() |
| packets = command_message.generate_packets() |
| device_context = self.device_context |
| channel = mbim_channel.MBIMChannel( |
| device_context._device, |
| device_context.mbim_communication_interface.bInterfaceNumber, |
| device_context.interrupt_endpoint.bEndpointAddress, |
| device_context.max_control_transfer_size) |
| response_packets = channel.bidirectional_transaction(*packets) |
| channel.close() |
| |
| # Step 2 |
| response_message = mbim_control.parse_response_packets(response_packets) |
| |
| # Step 3 |
| is_message_valid = isinstance( |
| response_message, |
| mbim_command_message.MBIMDeviceServicesInfo) |
| if ((not is_message_valid) or |
| (response_message.message_type != |
| mbim_constants.MBIM_COMMAND_DONE) or |
| (response_message.status_codes != |
| mbim_constants.MBIM_STATUS_SUCCESS)): |
| mbim_errors.log_and_raise(mbim_errors.MBIMComplianceAssertionError, |
| 'mbim1.0:9.4.3') |
| |
| return command_message, response_message |