/* * 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 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(); } }