Add new API to scan a given channel set

Create new (hidden) APIs to scan a specified channel set. This is mainly for
location service for now, as doing frequent full scans (including DFS channel)
kills battery.

This set of new APIs contains:
- API to query available channel list for scanning, and DFS channels are marked
- API to scan a specified channel set

Selective scan results are returned in the same way as normal full scan ones.
In order not to intrude full scan results, BSS_FLUSH is NOT performed before a
selective scan. Therefore, selective scan results may contain results that's not
in the given channel set, and post-filtering may be required for location
service use.

Bug: 12610436
Change-Id: Icced18dd9b54f6dd92c0c2874d31518d56af8163

1 files changed, 5 insertions, 1 deletions

diff --git a/wifi/java/android/net/wifi/IWifiManager.aidl b/wifi/java/android/net/wifi/IWifiManager.aidl
index 4a6b1ff..84e933d 100644
--- a/wifi/java/android/net/wifi/IWifiManager.aidl
+++ b/wifi/java/android/net/wifi/IWifiManager.aidl
@@ -20,6 +20,8 @@ import android.net.wifi.BatchedScanResult;
 import android.net.wifi.BatchedScanSettings;
 import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiInfo;
+import android.net.wifi.ScanSettings;
+import android.net.wifi.WifiChannel;
 import android.net.wifi.ScanResult;
 import android.net.DhcpInfo;
 
@@ -45,7 +47,9 @@ interface IWifiManager
 
     boolean pingSupplicant();
 
-    void startScan(in WorkSource ws);
+    List<WifiChannel> getChannelList();
+
+    void startScan(in ScanSettings requested, in WorkSource ws);
 
     List<ScanResult> getScanResults(String callingPackage);