79 lines
3.3 KiB
Python
79 lines
3.3 KiB
Python
# Copyright 2014 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import array
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import struct
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import common
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from autotest_lib.client.cros.cellular.mbim_compliance import mbim_channel
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from autotest_lib.client.cros.cellular.mbim_compliance import mbim_constants
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from autotest_lib.client.cros.cellular.mbim_compliance import mbim_errors
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from autotest_lib.client.cros.cellular.mbim_compliance \
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import mbim_message_request
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from autotest_lib.client.cros.cellular.mbim_compliance \
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import mbim_message_response
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from autotest_lib.client.cros.cellular.mbim_compliance \
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import mbim_test_base
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from autotest_lib.client.cros.cellular.mbim_compliance.sequences \
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import get_descriptors_sequence
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from autotest_lib.client.cros.cellular.mbim_compliance.sequences \
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import mbim_open_generic_sequence
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class cellular_MbimComplianceCM08(mbim_test_base.MbimTestBase):
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"""
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CM_08 Validation of InformationBuffer in case of a failure in
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MBIM_COMMAND_MSG.
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This test verifies that in case of a command failure the buffer in the
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MBIM_COMMAND_DONE response is empty.
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Reference:
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[1] Universal Serial Bus Communication Class MBIM Compliance Testing: 40
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http://www.usb.org/developers/docs/devclass_docs/MBIM-Compliance-1.0.pdf
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"""
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version = 1
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def run_internal(self):
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""" Run CM_08 test. """
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# Precondition
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descriptors = get_descriptors_sequence.GetDescriptorsSequence(
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self.device_context).run()
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self.device_context.update_descriptor_cache(descriptors)
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mbim_open_generic_sequence.MBIMOpenGenericSequence(
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self.device_context).run()
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# Step 1
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device_context = self.device_context
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descriptor_cache = device_context.descriptor_cache
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command_message = mbim_message_request.MBIMCommand(
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device_service_id=mbim_constants.UUID_BASIC_CONNECT.bytes,
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cid=mbim_constants.MBIM_CID_RADIO_STATE,
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command_type=mbim_constants.COMMAND_TYPE_SET,
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information_buffer_length=4,
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payload_buffer=array.array('B', struct.pack('I', 2)))
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packets = mbim_message_request.generate_request_packets(
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command_message,
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device_context.max_control_transfer_size)
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channel = mbim_channel.MBIMChannel(
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device_context._device,
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descriptor_cache.mbim_communication_interface.bInterfaceNumber,
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descriptor_cache.interrupt_endpoint.bEndpointAddress,
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device_context.max_control_transfer_size)
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response_packets = channel.bidirectional_transaction(*packets)
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channel.close()
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# Step 2
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response_message = mbim_message_response.parse_response_packets(
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response_packets)
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# Step 3
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if ((response_message.message_type !=
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mbim_constants.MBIM_COMMAND_DONE) or
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(response_message.status_codes ==
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mbim_constants.MBIM_STATUS_SUCCESS) or
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response_message.information_buffer_length != 0):
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mbim_errors.log_and_raise(mbim_errors.MBIMComplianceAssertionError,
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'mbim1.0:9.4.5#3')
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