/*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.wifi;
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import android.util.SparseArray;
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import java.util.Arrays;
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/**
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* A class representing link layer statistics collected over a Wifi Interface.
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*/
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/**
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* {@hide}
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*/
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public class WifiLinkLayerStats {
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public static final String V1_0 = "V1_0";
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public static final String V1_3 = "V1_3";
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/** The version of hal StaLinkLayerStats **/
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public String version;
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/** Number of beacons received from our own AP */
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public int beacon_rx;
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/** RSSI of management frames */
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public int rssi_mgmt;
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/* Packet counters */
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/** WME Best Effort Access Category received mpdu */
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public long rxmpdu_be;
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/** WME Best Effort Access Category transmitted mpdu */
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public long txmpdu_be;
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/** WME Best Effort Access Category lost mpdu */
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public long lostmpdu_be;
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/** WME Best Effort Access Category number of transmission retries */
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public long retries_be;
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/** WME Background Access Category received mpdu */
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public long rxmpdu_bk;
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/** WME Background Access Category transmitted mpdu */
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public long txmpdu_bk;
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/** WME Background Access Category lost mpdu */
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public long lostmpdu_bk;
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/** WME Background Access Category number of transmission retries */
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public long retries_bk;
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/** WME Video Access Category received mpdu */
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public long rxmpdu_vi;
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/** WME Video Access Category transmitted mpdu */
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public long txmpdu_vi;
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/** WME Video Access Category lost mpdu */
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public long lostmpdu_vi;
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/** WME Video Access Category number of transmission retries */
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public long retries_vi;
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/** WME Voice Access Category received mpdu */
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public long rxmpdu_vo;
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/** WME Voice Access Category transmitted mpdu */
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public long txmpdu_vo;
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/** WME Voice Access Category lost mpdu */
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public long lostmpdu_vo;
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/** WME Voice Access Category number of transmission retries */
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public long retries_vo;
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/**
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* Cumulative milliseconds when radio is awake
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*/
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public int on_time;
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/**
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* Cumulative milliseconds of active transmission
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*/
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public int tx_time;
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/**
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* Cumulative milliseconds per level of active transmission
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*/
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public int[] tx_time_per_level;
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/**
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* Cumulative milliseconds of active receive
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*/
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public int rx_time;
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/**
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* Cumulative milliseconds when radio is awake due to scan
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*/
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public int on_time_scan;
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/**
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* Cumulative milliseconds when radio is awake due to nan scan
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*/
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public int on_time_nan_scan = -1;
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/**
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* Cumulative milliseconds when radio is awake due to background scan
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*/
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public int on_time_background_scan = -1;
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/**
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* Cumulative milliseconds when radio is awake due to roam scan
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*/
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public int on_time_roam_scan = -1;
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/**
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* Cumulative milliseconds when radio is awake due to pno scan
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*/
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public int on_time_pno_scan = -1;
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/**
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* Cumulative milliseconds when radio is awake due to hotspot 2.0 scan amd GAS exchange
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*/
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public int on_time_hs20_scan = -1;
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/**
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* channel stats
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*/
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public static class ChannelStats {
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/**
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* Channel frequency in MHz;
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*/
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public int frequency;
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/**
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* Cumulative milliseconds radio is awake on this channel
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*/
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public int radioOnTimeMs;
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/**
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* Cumulative milliseconds CCA is held busy on this channel
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*/
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public int ccaBusyTimeMs;
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}
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/**
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* Channel stats list
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*/
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public final SparseArray<ChannelStats> channelStatsMap = new SparseArray<>();
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/**
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* TimeStamp - absolute milliseconds from boot when these stats were sampled.
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*/
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public long timeStampInMs;
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@Override
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public String toString() {
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StringBuilder sbuf = new StringBuilder();
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sbuf.append(" WifiLinkLayerStats: ").append('\n');
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sbuf.append(" version of StaLinkLayerStats: ").append(version).append('\n');
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sbuf.append(" my bss beacon rx: ").append(Integer.toString(this.beacon_rx)).append('\n');
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sbuf.append(" RSSI mgmt: ").append(Integer.toString(this.rssi_mgmt)).append('\n');
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sbuf.append(" BE : ").append(" rx=").append(Long.toString(this.rxmpdu_be))
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.append(" tx=").append(Long.toString(this.txmpdu_be))
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.append(" lost=").append(Long.toString(this.lostmpdu_be))
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.append(" retries=").append(Long.toString(this.retries_be)).append('\n');
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sbuf.append(" BK : ").append(" rx=").append(Long.toString(this.rxmpdu_bk))
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.append(" tx=").append(Long.toString(this.txmpdu_bk))
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.append(" lost=").append(Long.toString(this.lostmpdu_bk))
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.append(" retries=").append(Long.toString(this.retries_bk)).append('\n');
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sbuf.append(" VI : ").append(" rx=").append(Long.toString(this.rxmpdu_vi))
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.append(" tx=").append(Long.toString(this.txmpdu_vi))
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.append(" lost=").append(Long.toString(this.lostmpdu_vi))
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.append(" retries=").append(Long.toString(this.retries_vi)).append('\n');
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sbuf.append(" VO : ").append(" rx=").append(Long.toString(this.rxmpdu_vo))
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.append(" tx=").append(Long.toString(this.txmpdu_vo))
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.append(" lost=").append(Long.toString(this.lostmpdu_vo))
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.append(" retries=").append(Long.toString(this.retries_vo)).append('\n');
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sbuf.append(" on_time : ").append(Integer.toString(this.on_time))
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.append(" tx_time=").append(Integer.toString(this.tx_time))
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.append(" rx_time=").append(Integer.toString(this.rx_time))
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.append(" scan_time=").append(Integer.toString(this.on_time_scan)).append('\n')
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.append(" nan_scan_time=")
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.append(Integer.toString(this.on_time_nan_scan)).append('\n')
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.append(" g_scan_time=")
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.append(Integer.toString(this.on_time_background_scan)).append('\n')
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.append(" roam_scan_time=")
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.append(Integer.toString(this.on_time_roam_scan)).append('\n')
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.append(" pno_scan_time=")
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.append(Integer.toString(this.on_time_pno_scan)).append('\n')
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.append(" hs2.0_scan_time=")
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.append(Integer.toString(this.on_time_hs20_scan)).append('\n')
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.append(" tx_time_per_level=" + Arrays.toString(tx_time_per_level)).append('\n');
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int numChanStats = this.channelStatsMap.size();
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sbuf.append(" Number of channel stats=").append(numChanStats).append('\n');
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for (int i = 0; i < numChanStats; ++i) {
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ChannelStats channelStatsEntry = this.channelStatsMap.valueAt(i);
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sbuf.append(" Frequency=").append(channelStatsEntry.frequency)
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.append(" radioOnTimeMs=").append(channelStatsEntry.radioOnTimeMs)
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.append(" ccaBusyTimeMs=").append(channelStatsEntry.ccaBusyTimeMs).append('\n');
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}
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sbuf.append(" ts=" + timeStampInMs);
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return sbuf.toString();
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}
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}
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