From 15f89078784d44006f7ed0c0f34a5e3fbc3d840c Mon Sep 17 00:00:00 2001
From: Vinit Deshpande <vinitd@google.com>
Date: Fri, 5 Sep 2014 20:43:57 -0700
Subject: Implement getAvailableChannels

This API allows finding channels by band, so scanning services
can find out which channels to use.

Bug: 16652660
Change-Id: I690825333988a336efa3fc8886297e5b8baf8e1d
---
 wifi/java/android/net/wifi/IWifiScanner.aidl |  3 +++
 wifi/java/android/net/wifi/WifiScanner.java  | 11 ++++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/wifi/java/android/net/wifi/IWifiScanner.aidl b/wifi/java/android/net/wifi/IWifiScanner.aidl
index fef2d117f11d..398493439bbe 100644
--- a/wifi/java/android/net/wifi/IWifiScanner.aidl
+++ b/wifi/java/android/net/wifi/IWifiScanner.aidl
@@ -17,6 +17,7 @@
 package android.net.wifi;
 
 import android.os.Messenger;
+import android.os.Bundle;
 
 /**
  * {@hide}
@@ -24,4 +25,6 @@ import android.os.Messenger;
 interface IWifiScanner
 {
     Messenger getMessenger();
+
+    Bundle getAvailableChannels(int band);
 }
diff --git a/wifi/java/android/net/wifi/WifiScanner.java b/wifi/java/android/net/wifi/WifiScanner.java
index e7bcb23f73a6..65c00bdddd64 100644
--- a/wifi/java/android/net/wifi/WifiScanner.java
+++ b/wifi/java/android/net/wifi/WifiScanner.java
@@ -18,6 +18,7 @@ package android.net.wifi;
 
 import android.annotation.SystemApi;
 import android.content.Context;
+import android.os.Bundle;
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.Looper;
@@ -76,6 +77,9 @@ public class WifiScanner {
     /** Invalid request */
     public static final int REASON_INVALID_REQUEST = -3;
 
+    /** @hide */
+    public static final String GET_AVAILABLE_CHANNELS_EXTRA = "Channels";
+
     /**
      * Generic action callback invocation interface
      *  @hide
@@ -92,7 +96,12 @@ public class WifiScanner {
      * @hide
      */
     public List<Integer> getAvailableChannels(int band) {
-        return null;
+        try {
+            Bundle bundle =  mService.getAvailableChannels(band);
+            return bundle.getIntegerArrayList(GET_AVAILABLE_CHANNELS_EXTRA);
+        } catch (RemoteException e) {
+            return null;
+        }
     }
 
     /**
-- 
cgit v1.2.3-59-g8ed1b