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authorIrfan Sheriff <isheriff@google.com>2012-05-14 17:00:17 -0700
committerAndroid (Google) Code Review <android-gerrit@google.com>2012-05-14 17:00:17 -0700
commitf74f1ac81d442aed4a97475019b40afafcf3017a (patch)
tree165468a49f948ffefb8aaf337a5fddada1590912 /wifi/java/android/net
parentdfae6db0228a2ba4e34deb48d54fb06a2637e6a2 (diff)
parentf91d4e7bdd6923b6f724b7956c0a87714e61fd13 (diff)
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Merge "Add work around to restart driver on failure" into jb-dev
Diffstat (limited to 'wifi/java/android/net')
-rw-r--r--wifi/java/android/net/wifi/WifiStateMachine.java36
1 files changed, 35 insertions, 1 deletions
diff --git a/wifi/java/android/net/wifi/WifiStateMachine.java b/wifi/java/android/net/wifi/WifiStateMachine.java
index b099202..2903faa 100644
--- a/wifi/java/android/net/wifi/WifiStateMachine.java
+++ b/wifi/java/android/net/wifi/WifiStateMachine.java
@@ -182,6 +182,14 @@ public class WifiStateMachine extends StateMachine {
/* Tracks sequence number on a tether notification time out */
private int mTetherToken = 0;
+ /**
+ * Driver start time out.
+ */
+ private static final int DRIVER_START_TIME_OUT_MSECS = 10000;
+
+ /* Tracks sequence number on a driver time out */
+ private int mDriverStartToken = 0;
+
private LinkProperties mLinkProperties;
/* Tracks sequence number on a periodic scan message */
@@ -250,7 +258,8 @@ public class WifiStateMachine extends StateMachine {
static final int CMD_STOP_SUPPLICANT_FAILED = BASE + 17;
/* Delayed stop to avoid shutting down driver too quick*/
static final int CMD_DELAYED_STOP_DRIVER = BASE + 18;
-
+ /* A delayed message sent to start driver when it fail to come up */
+ static final int CMD_DRIVER_START_TIMED_OUT = BASE + 19;
/* Start the soft access point */
static final int CMD_START_AP = BASE + 21;
@@ -1837,6 +1846,7 @@ public class WifiStateMachine extends StateMachine {
case CMD_START_DRIVER:
case CMD_STOP_DRIVER:
case CMD_DELAYED_STOP_DRIVER:
+ case CMD_DRIVER_START_TIMED_OUT:
case CMD_START_AP:
case CMD_START_AP_SUCCESS:
case CMD_START_AP_FAILURE:
@@ -2476,10 +2486,16 @@ public class WifiStateMachine extends StateMachine {
}
class DriverStartingState extends State {
+ private int mTries;
@Override
public void enter() {
if (DBG) log(getName() + "\n");
EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName());
+
+ mTries = 1;
+ /* Send ourselves a delayed message to start driver a second time */
+ sendMessageDelayed(obtainMessage(CMD_DRIVER_START_TIMED_OUT,
+ ++mDriverStartToken, 0), DRIVER_START_TIME_OUT_MSECS);
}
@Override
public boolean processMessage(Message message) {
@@ -2495,6 +2511,24 @@ public class WifiStateMachine extends StateMachine {
transitionTo(mDriverStartedState);
}
break;
+ case CMD_DRIVER_START_TIMED_OUT:
+ if (message.arg1 == mDriverStartToken) {
+ if (mTries >= 2) {
+ loge("Failed to start driver after " + mTries);
+ transitionTo(mDriverStoppedState);
+ } else {
+ loge("Driver start failed, retrying");
+ mWakeLock.acquire();
+ mWifiNative.startDriver();
+ mWakeLock.release();
+
+ ++mTries;
+ /* Send ourselves a delayed message to start driver again */
+ sendMessageDelayed(obtainMessage(CMD_DRIVER_START_TIMED_OUT,
+ ++mDriverStartToken, 0), DRIVER_START_TIME_OUT_MSECS);
+ }
+ }
+ break;
/* Queue driver commands & connection events */
case CMD_START_DRIVER:
case CMD_STOP_DRIVER: