Initial commit moving openolt adapter from voltha-go to the new repo.
This version works with ponsim rather than openolt, this is temporary.
It is currently being fixed to work with openolt.
Change-Id: I34a800c98f050140b367e2d474b7aa8b79f34b9a
Signed-off-by: William Kurkian <wkurkian@cisco.com>
diff --git a/python/adapters/extensions/omci/tasks/get_mds_task.py b/python/adapters/extensions/omci/tasks/get_mds_task.py
new file mode 100644
index 0000000..1560c83
--- /dev/null
+++ b/python/adapters/extensions/omci/tasks/get_mds_task.py
@@ -0,0 +1,112 @@
+#
+# Copyright 2017 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+from task import Task
+from twisted.internet import reactor
+from twisted.internet.defer import inlineCallbacks, TimeoutError, failure
+from voltha.extensions.omci.omci_me import OntDataFrame
+from voltha.extensions.omci.omci_defs import ReasonCodes as RC
+
+
+class GetMdsTask(Task):
+ """
+ OpenOMCI Get MIB Data Sync value task
+
+ On successful completion, this task will call the 'callback' method of the
+ deferred returned by the start method and return the value of the MIB
+ Data Sync attribute of the ONT Data ME
+ """
+ task_priority = Task.DEFAULT_PRIORITY
+ name = "Get MDS Task"
+
+ def __init__(self, omci_agent, device_id):
+ """
+ Class initialization
+
+ :param omci_agent: (OmciAdapterAgent) OMCI Adapter agent
+ :param device_id: (str) ONU Device ID
+ """
+ super(GetMdsTask, self).__init__(GetMdsTask.name,
+ omci_agent,
+ device_id,
+ priority=GetMdsTask.task_priority)
+ self._local_deferred = None
+
+ def cancel_deferred(self):
+ super(GetMdsTask, self).cancel_deferred()
+
+ d, self._local_deferred = self._local_deferred, None
+ try:
+ if d is not None and not d.called:
+ d.cancel()
+ except:
+ pass
+
+ def start(self):
+ """
+ Start MIB Synchronization tasks
+ """
+ super(GetMdsTask, self).start()
+ self._local_deferred = reactor.callLater(0, self.perform_get_mds)
+
+ def stop(self):
+ """
+ Shutdown MIB Synchronization tasks
+ """
+ self.log.debug('stopping')
+
+ self.cancel_deferred()
+ super(GetMdsTask, self).stop()
+
+ @inlineCallbacks
+ def perform_get_mds(self):
+ """
+ Get the 'mib_data_sync' attribute of the ONU
+ """
+ self.log.debug('perform-get-mds')
+
+ try:
+ device = self.omci_agent.get_device(self.device_id)
+
+ #########################################
+ # Request (MDS supplied value does not matter for a 'get' request)
+
+ self.strobe_watchdog()
+ results = yield device.omci_cc.send(OntDataFrame().get())
+
+ omci_msg = results.fields['omci_message'].fields
+ status = omci_msg['success_code']
+
+ # Note: Currently the data reported by the Scapy decode is 16-bits since we need
+ # the data field that large in order to support MIB and Alarm Upload Next
+ # commands. Select only the first 8-bits since that is the size of the MIB
+ # Data Sync attribute
+ mds = (omci_msg['data']['mib_data_sync'] >> 8) & 0xFF \
+ if 'data' in omci_msg and 'mib_data_sync' in omci_msg['data'] else -1
+
+ self.log.debug('ont-data-mds', status=status, mib_data_sync=mds)
+
+ assert status == RC.Success, 'Unexpected Response Status: {}'.format(status)
+
+ # Successful if here
+ self.deferred.callback(mds)
+
+ except TimeoutError as e:
+ self.log.warn('get-mds-timeout', e=e)
+ self.deferred.errback(failure.Failure(e))
+
+ except Exception as e:
+ self.log.exception('get-mds', e=e)
+ self.deferred.errback(failure.Failure(e))