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/*
* Copyright 2017 The Android Open Source Project
*
* 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.
*/
package android.hardware.wifi@1.2;
import @1.0::MacAddress;
import @1.0::NanDataPathConfirmInd;
import @1.0::WifiChannelInMhz;
import @1.0::WifiChannelWidthInMhz;
/**
* NAN configuration request parameters added in the 1.2 HAL. These are supplemental to previous
* versions.
*/
struct NanConfigRequestSupplemental {
/**
* Specify the Discovery Beacon interval in ms. Specification only applicable if the device
* transmits Discovery Beacons (based on the Wi-Fi Aware protocol selection criteria). The value
* can be increased to reduce power consumption (on devices which would transmit Discovery
* Beacons), however - cluster synchronization time will likely increase.
* Values are:
* - A value of 0 indicates that the HAL sets the interval to a default (implementation specific)
* - A positive value
*/
uint32_t discoveryBeaconIntervalMs;
/**
* The number of spatial streams to be used for transmitting NAN management frames (does NOT apply
* to data-path packets). A small value may reduce power consumption for small discovery packets.
* Values are:
* - A value of 0 indicates that the HAL sets the number to a default (implementation specific)
* - A positive value
*/
uint32_t numberOfSpatialStreamsInDiscovery;
/**
* Controls whether the device may terminate listening on a Discovery Window (DW) earlier than the
* DW termination (16ms) if no information is received. Enabling the feature will result in
* lower power consumption, but may result in some missed messages and hence increased latency.
*/
bool enableDiscoveryWindowEarlyTermination;
/**
* Controls whether NAN RTT (ranging) is permitted. Global flag on any NAN RTT operations are
* allowed. Controls ranging in the context of discovery as well as direct RTT.
*/
bool enableRanging;
};
/**
* NAN data path channel information provided to the framework.
*/
struct NanDataPathChannelInfo {
/**
* Channel frequency in MHz.
*/
WifiChannelInMhz channelFreq;
/**
* Channel bandwidth in MHz.
*/
WifiChannelWidthInMhz channelBandwidth;
/**
* Number of spatial streams used in the channel.
*/
uint32_t numSpatialStreams;
};
/**
* NAN Data path confirmation Indication structure.
* Event indication is received on both initiator and responder side when negotiation for a
* data-path finish: on success or failure.
*/
struct NanDataPathConfirmInd {
/**
* Baseline information as defined in HAL 1.0.
*/
@1.0::NanDataPathConfirmInd V1_0;
/**
* The channel(s) on which the NDP is scheduled to operate.
* Updates to the operational channels are provided using the |eventDataPathScheduleUpdate|
* event.
*/
vec<NanDataPathChannelInfo> channelInfo;
};
/**
* NAN data path channel information update indication structure.
* Event indication is received by all NDP owners whenever the channels on which the NDP operates
* are updated.
* Note: multiple NDPs may share the same schedule, the indication specifies all NDPs to which it
* applies.
*/
struct NanDataPathScheduleUpdateInd {
/**
* The discovery address (NMI) of the peer to which the NDP is connected.
*/
MacAddress peerDiscoveryAddress;
/**
* The updated channel(s) information.
*/
vec<NanDataPathChannelInfo> channelInfo;
/**
* The list of NDPs to which this update applies.
*/
vec<uint32_t> ndpInstanceIds;
};
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