wifi(interface): Link layer stats collection
Add HIDL methods for STA iface link layer stats. While there, Add the missing gscan API for fetching a list of channels for a given band. Bug:31991459 Test: Compiles Change-Id: I5d448eb823faae4e8f5c25f746cf59e70df454cf
This commit is contained in:
Roshan Pius
parent
a52dc7322d
commit
18680b7aff
2 changed files with 173 additions and 5 deletions
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@ -174,7 +174,7 @@ interface IWifiChip {
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* Must trigger |IWifiChipEventCallback.onChipReconfigured| on success.
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* Must trigger |IWifiEventCallback.onFailure| on failure.
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*
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* @param modeId The mode that the chip should switch to, corresponding to the
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* @param modeId The mode that the chip must switch to, corresponding to the
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* id property of the target ChipMode.
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* @return status WifiStatus of the operation.
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* Possible status codes:
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@ -40,6 +40,10 @@ interface IWifiStaIface extends IWifiIface {
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* parameters about how and when to report results.
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*/
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BACKGROUND_SCAN = 1 << 1,
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/**
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* If set indicates that the link layer stats APIs are supported.
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*/
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LINK_LAYER_STATS = 1 << 2
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};
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/**
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@ -206,6 +210,98 @@ interface IWifiStaIface extends IWifiIface {
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vec<BackgroundScanBucketParameters> buckets;
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};
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/**
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* Packet stats for different traffic categories.
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*/
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struct LinkLayerIfacePacketStats {
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/**
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* Number of received unicast data packets.
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*/
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uint64_t rxMpdu;
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/**
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* Number of successfully transmitted unicast data pkts (ACK rcvd).
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*/
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uint64_t txMpdu;
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/**
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* Number of transmitted unicast data pkt losses (no ACK).
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*/
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uint64_t lostMpdu;
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/**
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* Number of transmitted unicast data retry pkts.
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*/
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uint64_t retries;
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};
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/**
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* Iface statistics for the current connection.
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*/
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struct LinkLayerIfaceStats {
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/**
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* Number beacons received from the connected AP.
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*/
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uint32_t beaconRx;
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/**
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* Access Point Beacon and Management frames RSSI (averaged).
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*/
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int32_t avgRssiMgmt;
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/**
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* WME Best Effort Access Category packet counters.
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*/
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LinkLayerIfacePacketStats wmeBePktStats;
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/**
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* WME Background Access Category packet counters.
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*/
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LinkLayerIfacePacketStats wmeBkPktStats;
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/**
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* WME Video Access Category packet counters.
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*/
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LinkLayerIfacePacketStats wmeViPktStats;
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/**
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* WME Voice Access Category packet counters.
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*/
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LinkLayerIfacePacketStats wmeVoPktStats;
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};
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/**
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* Cumulative radio statistics since collection was enabled.
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*/
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struct LinkLayerRadioStats {
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/**
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* Time for which the radio is awake.
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*/
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uint32_t onTimeInMs;
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/**
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* Total time for which the radio is in active transmission.
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*/
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uint32_t txTimeInMs;
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/**
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* Time for which the radio is in active tranmission per tx level.
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*/
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vec<uint32_t> txTimeInMsPerLevel;
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/**
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* Time for which the radio is in active receive.
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*/
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uint32_t rxTimeInMs;
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/**
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* Total time for which the radio is awake due to scan.
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*/
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uint32_t onTimeInMsForScan;
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};
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/**
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* Link layer stats retrieved via |getLinkLayerStats|.
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*/
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struct LinkLayerStats {
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LinkLayerIfaceStats iface;
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LinkLayerRadioStats radio;
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/**
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* Timestamp for each stats sample.
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* This is the absolute milliseconds from boot when these stats were
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* sampled.
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*/
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uint32_t timeStampInMs;
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};
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/**
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* Requests notifications of significant events on this iface. Multiple calls
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* to this must register multiple callbacks each of which must receive all
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@ -236,7 +332,7 @@ interface IWifiStaIface extends IWifiIface {
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/**
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* Used to query additional information about the chip's APF capabilities.
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* Will fail if |StaIfaceCapabilityMask.APF| is not set.
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* Must fail if |StaIfaceCapabilityMask.APF| is not set.
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*
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* @return status WifiStatus of the operation.
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* Possible status codes:
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@ -253,7 +349,7 @@ interface IWifiStaIface extends IWifiIface {
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/**
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* Installs an APF program on this iface, replacing an existing
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* program if present.
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* Will fail if |StaIfaceCapabilityMask.APF| is not set.
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* Must fail if |StaIfaceCapabilityMask.APF| is not set.
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*
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* @param cmdId command Id to use for this invocation.
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* @param APF Program to be set.
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@ -270,8 +366,8 @@ interface IWifiStaIface extends IWifiIface {
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generates (WifiStatus status);
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/**
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* Used to query additional information about the chip's APF capabilities.
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* Will fail if |StaIfaceCapabilityMask.BACKGROUND_SCAN| is not set.
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* Used to query additional information about the chip's Background Scan capabilities.
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* Must fail if |StaIfaceCapabilityMask.BACKGROUND_SCAN| is not set.
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*
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* @return status WifiStatus of the operation.
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* Possible status codes:
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@ -285,9 +381,29 @@ interface IWifiStaIface extends IWifiIface {
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getBackgroundScanCapabilities()
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generates (WifiStatus status, BackgroundScanCapabilities capabilities);
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/**
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* Used to query the list of valid frequencies (depending on country code set)
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* for the provided band. These channels may be specifed in the
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* |BackgroundScanBucketParameters.frequenciesInMhz| for a background scan
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* request.
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* Must fail if |StaIfaceCapabilityMask.BACKGROUND_SCAN| is not set.
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*
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* @return status WifiStatus of the operation.
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* Possible status codes:
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* |WifiStatusCode.SUCCESS|,
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* |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|,
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* |WifiStatusCode.ERROR_NOT_SUPPORTED|,
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* |WifiStatusCode.ERROR_NOT_AVAILABLE|,
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* |WifiStatusCode.ERROR_UNKNOWN|
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* @return frequenciesInMhz vector of valid frequencies for the provided band.
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*/
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getValidFrequenciesForBackgroundScan(BackgroundScanBand band)
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generates (WifiStatus status, vec<uint32_t> frequenciesInMhz);
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/**
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* Start a background scan using the given cmdId as an identifier. Only one
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* active background scan need be supported.
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* Must fail if |StaIfaceCapabilityMask.BACKGROUND_SCAN| is not set.
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*
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* When this is called all requested buckets must be scanned, starting the
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* beginning of the cycle.
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@ -326,6 +442,7 @@ interface IWifiStaIface extends IWifiIface {
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/**
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* Stop the background scan started.
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* Must fail if |StaIfaceCapabilityMask.BACKGROUND_SCAN| is not set.
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*
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* @param cmdId command Id corresponding to the request.
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* @return status WifiStatus of the operation.
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@ -337,4 +454,55 @@ interface IWifiStaIface extends IWifiIface {
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* |WifiStatusCode.ERROR_UNKNOWN|
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*/
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stopBackgroundScan(CommandId cmdId) generates (WifiStatus status);
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/**
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* Enable link layer stats collection.
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* Must fail if |StaIfaceCapabilityMask.LINK_LAYER_STATS| is not set.
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*
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* Radio statistics (once started) must not stop until disabled.
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* Iface statistics (once started) reset and start afresh after each
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* connection until disabled.
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*
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* @param debug Set for field debug mode. Driver must collect all
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* statistics regardless of performance impact.
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* @return status WifiStatus of the operation.
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* Possible status codes:
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* |WifiStatusCode.SUCCESS|,
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* |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|,
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* |WifiStatusCode.ERROR_NOT_SUPPORTED|,
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* |WifiStatusCode.ERROR_NOT_AVAILABLE|,
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* |WifiStatusCode.ERROR_UNKNOWN|
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*/
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enableLinkLayerStatsCollection(bool debug)
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generates (WifiStatus status);
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/**
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* Disable link layer stats collection.
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* Must fail if |StaIfaceCapabilityMask.LINK_LAYER_STATS| is not set.
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*
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* @return status WifiStatus of the operation.
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* Possible status codes:
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* |WifiStatusCode.SUCCESS|,
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* |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|,
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* |WifiStatusCode.ERROR_NOT_SUPPORTED|,
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* |WifiStatusCode.ERROR_NOT_AVAILABLE|,
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* |WifiStatusCode.ERROR_UNKNOWN|
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*/
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disableLinkLayerStatsCollection() generates (WifiStatus status);
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/**
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* Retrieve the latest link layer stats.
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* Must fail if |StaIfaceCapabilityMask.LINK_LAYER_STATS| is not set or if
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* link layer stats collection hasn't been explicitly enabled.
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*
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* @return status WifiStatus of the operation.
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* Possible status codes:
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* |WifiStatusCode.SUCCESS|,
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* |WifiStatusCode.ERROR_WIFI_IFACE_INVALID|,
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* |WifiStatusCode.ERROR_NOT_SUPPORTED|,
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* |WifiStatusCode.ERROR_NOT_AVAILABLE|,
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* |WifiStatusCode.ERROR_UNKNOWN|
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* @return stats Instance of |LinkLayerStats|.
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*/
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getLinkLayerStats() generates (WifiStatus status, LinkLayerStats stats);
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};
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