| # Copyright 2014 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.cros.cellular.mbim_compliance import mbim_constants |
| from autotest_lib.client.cros.cellular.mbim_compliance import mbim_errors |
| from autotest_lib.client.cros.cellular.mbim_compliance import mbim_test_base |
| from autotest_lib.client.cros.cellular.mbim_compliance.sequences \ |
| import connect_sequence |
| from autotest_lib.client.cros.cellular.mbim_compliance.sequences \ |
| import get_descriptors_sequence |
| from autotest_lib.client.cros.cellular.mbim_compliance.sequences \ |
| import loopback_sequence |
| from autotest_lib.client.cros.cellular.mbim_compliance.sequences \ |
| import mbim_open_generic_sequence |
| |
| |
| class network_MbimComplianceDTS01(mbim_test_base.MbimTestBase): |
| """ |
| Validation for alternate setting 1 of the communication interface. |
| |
| This test validates data transfer operation for alternate setting 1 of the |
| Communication Interface. |
| |
| Reference: |
| [1] Universal Serial Bus Communication Class MBIM Compliance Testing: 28 |
| http://www.usb.org/developers/docs/devclass_docs/MBIM-Compliance-1.0.pdf |
| |
| """ |
| version = 1 |
| |
| def run_internal(self): |
| """ Run DTS_01 test. """ |
| # Precondition |
| desc_sequence = get_descriptors_sequence.GetDescriptorsSequence( |
| self.device_context) |
| descriptors = desc_sequence.run() |
| self.device_context.update_descriptor_cache(descriptors) |
| open_sequence = mbim_open_generic_sequence.MBIMOpenGenericSequence( |
| self.device_context) |
| open_sequence.run(ntb_format=mbim_constants.NTB_FORMAT_16) |
| connect = connect_sequence.ConnectSequence(self.device_context) |
| connect.run() |
| |
| # Step 1 |
| loopback = loopback_sequence.LoopbackSequence(self.device_context) |
| _, _, _, payload = loopback.run( |
| ntb_format=self.device_context.ntb_format) |
| |
| # Step 2 |
| # Let's check the first byte of the first received payload to verify |
| # that it is an IPv4 packet |
| if payload[0][0] != 0x45: |
| mbim_errors.log_and_raise(mbim_errors.MBIMComplianceAssertionError, |
| 'mbim1.0:3.2.1#5') |
