解决不能打开wifi问题

使用 命令svc wifi来调试，避免使用GUI

相关资料  https://community.freescale.com/thread/319407

D/WifiService( 313): setWifiEnabled: true pid=892, uid=1000

在源码目录下 frameworks/base/services/java/com/android/server/WifiService.java

public synchronized boolean setWifiEnabled(boolean enable) {

enforceChangePermission();
     Slog.d(TAG, "setWifiEnabled: " + enable + " pid=" + Binder.getCallingPid()
     + ", uid=" + Binder.getCallingUid());
    if (DBG) {
   Slog.e(TAG, "Invoking mWifiStateMachine.setWifiEnabled\n");
   }

if (enable) {
      reportStartWorkSource();
    }
    mWifiStateMachine.setWifiEnabled(enable);

........................................................................................

public void setWifiEnabled(boolean enable) {
mLastEnableUid.set(Binder.getCallingUid());
if (enable) {
/* Argument is the state that is entered prior to load */
sendMessage(obtainMessage(CMD_LOAD_DRIVER, WIFI_STATE_ENABLING, 0));
sendMessage(CMD_START_SUPPLICANT);
} else {
sendMessage(CMD_STOP_SUPPLICANT);
/* Argument is the state that is entered upon success */
sendMessage(obtainMessage(CMD_UNLOAD_DRIVER, WIFI_STATE_DISABLED, 0));
}
}

.........................................................................................

/*
   * Caller might not have WRITE_SECURE_SETTINGS,
   * only CHANGE_WIFI_STATE is enforced
  */

long ident = Binder.clearCallingIdentity();
  try {
    handleWifiToggled(enable);
  } finally {

Binder.restoreCallingIdentity(ident);
  }

if (enable) {
   if (!mIsReceiverRegistered) {
   registerForBroadcasts();
   mIsReceiverRegistered = true;
  }
  } else if (mIsReceiverRegistered) {
    mContext.unregisterReceiver(mReceiver);
    mIsReceiverRegistered = false;
   }

return true;
 }

D/BluetoothAdapter( 892): 1103147976: getState() : mService = null. Returning STATE_OFF

D/Tethering( 313): sendTetherStateChangedBroadcast 1, 0, 0

D/WifiStateMachine( 313): CMD_START_SUPPLICANT

E/NetdConnector( 313): NDC Command {11 softap fwreload wlan0 STA} took too long (538ms)

E/WifiStateMachine( 313): Failed to reload STA firmware java.lang.IllegalStateException: command '35 softap fwreload wlan0 STA' failed with '400 35 Softap operation failed (Cannot assign requested address)'

frameworks/base/wifi/java/android/net/wifi/WifiStateMachine.java

DriverLoadedState 

case CMD_START_SUPPLICANT:
Slog.d(TAG,"CMD_START_SUPPLICANT");

try {
mNwService.wifiFirmwareReload(mInterfaceName, "STA");
} catch (Exception e) {
loge("Failed to reload STA firmware " + e);
// continue
}

...........................................................................................

./base/services/java/com/android/server/NetworkManagementService.java

public void wifiFirmwareReload(String wlanIface, String mode) {
mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);
try {
mConnector.execute("softap", "fwreload", wlanIface, mode);
} catch (NativeDaemonConnectorException e) {
throw e.rethrowAsParcelableException();
}
}

.............................................................................................

W/SocketClient( 64): write error (Broken pipe)

D/CommandListener( 64): Setting iface cfg

D/CommandListener( 64): Trying to bring down wlan0

I/wpa_supplicant( 926): Successfully initialized wpa_supplicant

I/wpa_supplicant( 926): rfkill: Cannot open RFKILL control device

D/Tethering( 313): InitialState.processMessage what=4
D/Tethering( 313): sendTetherStateChangedBroadcast 0, 0, 0
I/wpa_supplicant( 926): rfkill: Cannot open RFKILL control device
E/wpa_supplicant( 926): nl80211: Could not configure driver to use managed mode
E/wpa_supplicant( 926): Could not read interface p2p0 flags: No such device
E/wpa_supplicant( 926): p2p0: Failed to initialize driver interface
I/wpa_supplicant( 926): wlan0: CTRL-EVENT-TERMINATING
E/WifiHW ( 313): Supplicant not running, cannot connect
E/WifiHW ( 313): Supplicant not running, cannot connect
E/WifiHW ( 313): Supplicant not running, cannot connect
E/WifiHW ( 313): Supplicant not running, cannot connect
E/WifiHW ( 313): Supplicant not running, cannot connect