1 # Copyright 2014 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import common 6 from autotest_lib.client.cros.cellular.mbim_compliance import mbim_constants 7 from autotest_lib.client.cros.cellular.mbim_compliance import mbim_data_transfer 8 from autotest_lib.client.cros.cellular.mbim_compliance import mbim_dts_test_base 9 from autotest_lib.client.cros.cellular.mbim_compliance import mbim_errors 10 from autotest_lib.client.cros.cellular.mbim_compliance.sequences \ 11 import loopback_sequence 12 13 14 class cellular_MbimComplianceDTS0410(mbim_dts_test_base.MbimDtsTestBase): 15 """ 16 Validation of wSequence after function reset. 17 18 This test verifies that function reset properly re-initializes the sequence 19 number. 20 21 Reference: 22 [1] Universal Serial Bus Communication Class MBIM Compliance Testing: 28 23 http://www.usb.org/developers/docs/devclass_docs/MBIM-Compliance-1.0.pdf 24 25 """ 26 version = 1 27 28 def run_internal(self, ntb_format): 29 """ 30 Run DTS_04/DTS_10 test. 31 32 @param ntb_format: Whether to send/receive an NTB16 or NTB32 frame. 33 Possible values: NTB_FORMAT_16, NTB_FORMAT_32 (mbim_constants) 34 35 """ 36 # Precondition 37 _, open_sequence, connect_sequence = self.run_precondition(ntb_format) 38 39 # Step 1 40 loopback = loopback_sequence.LoopbackSequence(self.device_context) 41 _, _, _, _ = loopback.run(ntb_format=ntb_format) 42 43 # Step 2 44 open_sequence.run(ntb_format=ntb_format) 45 connect_sequence.run() 46 mbim_data_transfer.MBIMNtb.reset_sequence_number() 47 48 # Step 3 49 nth, _, _, _ = loopback.run(ntb_format=ntb_format) 50 51 # Step 4 52 if ntb_format == mbim_constants.NTB_FORMAT_16: 53 if nth.sequence_number != 0: 54 mbim_errors.log_and_raise( 55 mbim_errors.MBIMComplianceAssertionError, 56 'ncm1.0:3.2.1#3') 57 else: 58 if nth.sequence_number != 0: 59 mbim_errors.log_and_raise( 60 mbim_errors.MBIMComplianceAssertionError, 61 'ncm1.0:3.2.2#3') 62
