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/*
* Copyright 2014 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 com.android.server.wifi;
import android.util.SparseArray;
import java.util.Arrays;
/**
* A class representing link layer statistics collected over a Wifi Interface.
*/
/**
* {@hide}
*/
public class WifiLinkLayerStats {
public static final String V1_0 = "V1_0";
public static final String V1_3 = "V1_3";
/** The version of hal StaLinkLayerStats **/
public String version;
/** Number of beacons received from our own AP */
public int beacon_rx;
/** RSSI of management frames */
public int rssi_mgmt;
/* Packet counters */
/** WME Best Effort Access Category received mpdu */
public long rxmpdu_be;
/** WME Best Effort Access Category transmitted mpdu */
public long txmpdu_be;
/** WME Best Effort Access Category lost mpdu */
public long lostmpdu_be;
/** WME Best Effort Access Category number of transmission retries */
public long retries_be;
/** WME Background Access Category received mpdu */
public long rxmpdu_bk;
/** WME Background Access Category transmitted mpdu */
public long txmpdu_bk;
/** WME Background Access Category lost mpdu */
public long lostmpdu_bk;
/** WME Background Access Category number of transmission retries */
public long retries_bk;
/** WME Video Access Category received mpdu */
public long rxmpdu_vi;
/** WME Video Access Category transmitted mpdu */
public long txmpdu_vi;
/** WME Video Access Category lost mpdu */
public long lostmpdu_vi;
/** WME Video Access Category number of transmission retries */
public long retries_vi;
/** WME Voice Access Category received mpdu */
public long rxmpdu_vo;
/** WME Voice Access Category transmitted mpdu */
public long txmpdu_vo;
/** WME Voice Access Category lost mpdu */
public long lostmpdu_vo;
/** WME Voice Access Category number of transmission retries */
public long retries_vo;
/**
* Cumulative milliseconds when radio is awake
*/
public int on_time;
/**
* Cumulative milliseconds of active transmission
*/
public int tx_time;
/**
* Cumulative milliseconds per level of active transmission
*/
public int[] tx_time_per_level;
/**
* Cumulative milliseconds of active receive
*/
public int rx_time;
/**
* Cumulative milliseconds when radio is awake due to scan
*/
public int on_time_scan;
/**
* Cumulative milliseconds when radio is awake due to nan scan
*/
public int on_time_nan_scan = -1;
/**
* Cumulative milliseconds when radio is awake due to background scan
*/
public int on_time_background_scan = -1;
/**
* Cumulative milliseconds when radio is awake due to roam scan
*/
public int on_time_roam_scan = -1;
/**
* Cumulative milliseconds when radio is awake due to pno scan
*/
public int on_time_pno_scan = -1;
/**
* Cumulative milliseconds when radio is awake due to hotspot 2.0 scan amd GAS exchange
*/
public int on_time_hs20_scan = -1;
/**
* channel stats
*/
public static class ChannelStats {
/**
* Channel frequency in MHz;
*/
public int frequency;
/**
* Cumulative milliseconds radio is awake on this channel
*/
public int radioOnTimeMs;
/**
* Cumulative milliseconds CCA is held busy on this channel
*/
public int ccaBusyTimeMs;
}
/**
* Channel stats list
*/
public final SparseArray<ChannelStats> channelStatsMap = new SparseArray<>();
/**
* TimeStamp - absolute milliseconds from boot when these stats were sampled.
*/
public long timeStampInMs;
@Override
public String toString() {
StringBuilder sbuf = new StringBuilder();
sbuf.append(" WifiLinkLayerStats: ").append('\n');
sbuf.append(" version of StaLinkLayerStats: ").append(version).append('\n');
sbuf.append(" my bss beacon rx: ").append(Integer.toString(this.beacon_rx)).append('\n');
sbuf.append(" RSSI mgmt: ").append(Integer.toString(this.rssi_mgmt)).append('\n');
sbuf.append(" BE : ").append(" rx=").append(Long.toString(this.rxmpdu_be))
.append(" tx=").append(Long.toString(this.txmpdu_be))
.append(" lost=").append(Long.toString(this.lostmpdu_be))
.append(" retries=").append(Long.toString(this.retries_be)).append('\n');
sbuf.append(" BK : ").append(" rx=").append(Long.toString(this.rxmpdu_bk))
.append(" tx=").append(Long.toString(this.txmpdu_bk))
.append(" lost=").append(Long.toString(this.lostmpdu_bk))
.append(" retries=").append(Long.toString(this.retries_bk)).append('\n');
sbuf.append(" VI : ").append(" rx=").append(Long.toString(this.rxmpdu_vi))
.append(" tx=").append(Long.toString(this.txmpdu_vi))
.append(" lost=").append(Long.toString(this.lostmpdu_vi))
.append(" retries=").append(Long.toString(this.retries_vi)).append('\n');
sbuf.append(" VO : ").append(" rx=").append(Long.toString(this.rxmpdu_vo))
.append(" tx=").append(Long.toString(this.txmpdu_vo))
.append(" lost=").append(Long.toString(this.lostmpdu_vo))
.append(" retries=").append(Long.toString(this.retries_vo)).append('\n');
sbuf.append(" on_time : ").append(Integer.toString(this.on_time))
.append(" tx_time=").append(Integer.toString(this.tx_time))
.append(" rx_time=").append(Integer.toString(this.rx_time))
.append(" scan_time=").append(Integer.toString(this.on_time_scan)).append('\n')
.append(" nan_scan_time=")
.append(Integer.toString(this.on_time_nan_scan)).append('\n')
.append(" g_scan_time=")
.append(Integer.toString(this.on_time_background_scan)).append('\n')
.append(" roam_scan_time=")
.append(Integer.toString(this.on_time_roam_scan)).append('\n')
.append(" pno_scan_time=")
.append(Integer.toString(this.on_time_pno_scan)).append('\n')
.append(" hs2.0_scan_time=")
.append(Integer.toString(this.on_time_hs20_scan)).append('\n')
.append(" tx_time_per_level=" + Arrays.toString(tx_time_per_level)).append('\n');
int numChanStats = this.channelStatsMap.size();
sbuf.append(" Number of channel stats=").append(numChanStats).append('\n');
for (int i = 0; i < numChanStats; ++i) {
ChannelStats channelStatsEntry = this.channelStatsMap.valueAt(i);
sbuf.append(" Frequency=").append(channelStatsEntry.frequency)
.append(" radioOnTimeMs=").append(channelStatsEntry.radioOnTimeMs)
.append(" ccaBusyTimeMs=").append(channelStatsEntry.ccaBusyTimeMs).append('\n');
}
sbuf.append(" ts=" + timeStampInMs);
return sbuf.toString();
}
}
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