# 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 logging
import time

from autotest_lib.client.common_lib.cros.network import xmlrpc_datatypes
from autotest_lib.client.common_lib import error
from autotest_lib.server.cros import dark_resume_utils
from autotest_lib.server.cros.network import hostap_config
from autotest_lib.server.cros.network import wifi_cell_test_base
from autotest_lib.server.cros.network import wifi_client

class network_WiFi_WoWLAN(wifi_cell_test_base.WiFiCellTestBase):
    """Test that WiFi packets can wake up the system."""

    version = 1

    def initialize(self, host):
        """Set up for dark resume."""
        self._dr_utils = dark_resume_utils.DarkResumeUtils(host)


    def run_once(self):
        """Body of the test."""
        self.context.configure(hostap_config.HostapConfig(channel=1))
        assoc_params = xmlrpc_datatypes.AssociationParameters(
                ssid=self.context.router.get_ssid())
        self.context.assert_connect_wifi(assoc_params)

        client = self.context.client
        router = self.context.router
        dut_mac = client.wifi_mac
        dut_ip = client.wifi_ip

        logging.info('DUT WiFi MAC = %s, IPv4 = %s', dut_mac, dut_ip)
        logging.info('Router WiFi IPv4 = %s', router.wifi_ip)

        # Set up WoWLAN to wake on packets and register ip, then sleep
        with client.wake_on_wifi_features(wifi_client.WAKE_ON_WIFI_PACKET):
            logging.info('Set up WoWLAN')
            client.add_wake_packet_source(router.wifi_ip)

            with self._dr_utils.suspend():
                time.sleep(wifi_client.SUSPEND_WAIT_TIME_SECONDS)

                router.send_magic_packet(dut_ip, dut_mac)

                # Wait for the DUT to wake up in dark resume and suspend again.
                time.sleep(wifi_client.RECEIVE_PACKET_WAIT_TIME_SECONDS +
                           wifi_client.DARK_RESUME_WAIT_TIME_SECONDS)

                # Ensure that wake on packet did not trigger a full wake.
                if client.host.wait_up(
                        timeout=wifi_client.WAIT_UP_TIMEOUT_SECONDS):
                    raise error.TestFail('Client woke up fully.')

                if self._dr_utils.count_dark_resumes() < 1:
                    raise error.TestFail('Client failed to wake up.')

                logging.info('Client woke up successfully.')


    def cleanup(self):
        self._dr_utils.teardown()
        # Clean up packet wake sources
        self.context.client.remove_all_wake_packet_sources()
        # Make sure we clean up everything
        super(network_WiFi_WoWLAN, self).cleanup()