/* * Copyright (C) 2013 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.internal.telephony; import java.util.ArrayList; import java.util.Random; import android.content.Context; import android.content.Intent; import android.os.AsyncResult; import android.os.Handler; import android.os.Message; import android.os.PowerManager; import android.os.PowerManager.WakeLock; import android.telephony.RadioAccessFamily; import android.telephony.Rlog; import android.telephony.TelephonyManager; import android.util.Log; import com.android.internal.telephony.CommandsInterface; import com.android.internal.telephony.Phone; import com.android.internal.telephony.PhoneBase; import com.android.internal.telephony.PhoneProxy; import com.android.internal.telephony.dataconnection.DctController; import com.android.internal.telephony.RadioCapability; import com.android.internal.telephony.uicc.UiccController; import com.android.internal.telephony.TelephonyIntents; import java.io.FileDescriptor; import java.io.PrintWriter; import java.util.concurrent.atomic.AtomicInteger; import java.util.HashSet; public class ProxyController { static final String LOG_TAG = "ProxyController"; private static final int EVENT_NOTIFICATION_RC_CHANGED = 1; private static final int EVENT_START_RC_RESPONSE = 2; private static final int EVENT_APPLY_RC_RESPONSE = 3; private static final int EVENT_FINISH_RC_RESPONSE = 4; private static final int EVENT_TIMEOUT = 5; private static final int SET_RC_STATUS_IDLE = 0; private static final int SET_RC_STATUS_STARTING = 1; private static final int SET_RC_STATUS_STARTED = 2; private static final int SET_RC_STATUS_APPLYING = 3; private static final int SET_RC_STATUS_SUCCESS = 4; private static final int SET_RC_STATUS_FAIL = 5; // The entire transaction must complete within this amount of time // or a FINISH will be issued to each Logical Modem with the old // Radio Access Family. private static final int SET_RC_TIMEOUT_WAITING_MSEC = (45 * 1000); //***** Class Variables private static ProxyController sProxyController; private PhoneProxy[] mProxyPhones; private UiccController mUiccController; private CommandsInterface[] mCi; private Context mContext; private DctController mDctController; //UiccPhoneBookController to use proper IccPhoneBookInterfaceManagerProxy object private UiccPhoneBookController mUiccPhoneBookController; //PhoneSubInfoController to use proper PhoneSubInfoProxy object private PhoneSubInfoController mPhoneSubInfoController; //UiccSmsController to use proper IccSmsInterfaceManager object private UiccSmsController mUiccSmsController; WakeLock mWakeLock; // record each phone's set radio capability status private int[] mSetRadioAccessFamilyStatus; private int mRadioAccessFamilyStatusCounter; private boolean mTransactionFailed = false; private String[] mCurrentLogicalModemIds; private String[] mNewLogicalModemIds; // Allows the generation of unique Id's for radio capability request session id private AtomicInteger mUniqueIdGenerator = new AtomicInteger(new Random().nextInt()); // on-going radio capability request session id private int mRadioCapabilitySessionId; // Record new and old Radio Access Family (raf) configuration. // The old raf configuration is used to restore each logical modem raf when FINISH is // issued if any requests fail. private int[] mNewRadioAccessFamily; private int[] mOldRadioAccessFamily; //***** Class Methods public static ProxyController getInstance(Context context, PhoneProxy[] phoneProxy, UiccController uiccController, CommandsInterface[] ci) { if (sProxyController == null) { sProxyController = new ProxyController(context, phoneProxy, uiccController, ci); } return sProxyController; } public static ProxyController getInstance() { return sProxyController; } private ProxyController(Context context, PhoneProxy[] phoneProxy, UiccController uiccController, CommandsInterface[] ci) { logd("Constructor - Enter"); mContext = context; mProxyPhones = phoneProxy; mUiccController = uiccController; mCi = ci; mDctController = DctController.makeDctController(phoneProxy); mUiccPhoneBookController = new UiccPhoneBookController(mProxyPhones); mPhoneSubInfoController = new PhoneSubInfoController(mProxyPhones); mUiccSmsController = new UiccSmsController(mProxyPhones); mSetRadioAccessFamilyStatus = new int[mProxyPhones.length]; mNewRadioAccessFamily = new int[mProxyPhones.length]; mOldRadioAccessFamily = new int[mProxyPhones.length]; mCurrentLogicalModemIds = new String[mProxyPhones.length]; mNewLogicalModemIds = new String[mProxyPhones.length]; // wake lock for set radio capability PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE); mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, LOG_TAG); mWakeLock.setReferenceCounted(false); // Clear to be sure we're in the initial state clearTransaction(); for (int i = 0; i < mProxyPhones.length; i++) { mProxyPhones[i].registerForRadioCapabilityChanged( mHandler, EVENT_NOTIFICATION_RC_CHANGED, null); } logd("Constructor - Exit"); } public void updateDataConnectionTracker(int sub) { mProxyPhones[sub].updateDataConnectionTracker(); } public void enableDataConnectivity(int sub) { mProxyPhones[sub].setInternalDataEnabled(true); } public void disableDataConnectivity(int sub, Message dataCleanedUpMsg) { mProxyPhones[sub].setInternalDataEnabled(false, dataCleanedUpMsg); } public void updateCurrentCarrierInProvider(int sub) { mProxyPhones[sub].updateCurrentCarrierInProvider(); } public void registerForAllDataDisconnected(int subId, Handler h, int what, Object obj) { int phoneId = SubscriptionController.getInstance().getPhoneId(subId); if (phoneId >= 0 && phoneId < TelephonyManager.getDefault().getPhoneCount()) { mProxyPhones[phoneId].registerForAllDataDisconnected(h, what, obj); } } public void unregisterForAllDataDisconnected(int subId, Handler h) { int phoneId = SubscriptionController.getInstance().getPhoneId(subId); if (phoneId >= 0 && phoneId < TelephonyManager.getDefault().getPhoneCount()) { mProxyPhones[phoneId].unregisterForAllDataDisconnected(h); } } public boolean isDataDisconnected(int subId) { int phoneId = SubscriptionController.getInstance().getPhoneId(subId); if (phoneId >= 0 && phoneId < TelephonyManager.getDefault().getPhoneCount()) { Phone activePhone = mProxyPhones[phoneId].getActivePhone(); return ((PhoneBase) activePhone).mDcTracker.isDisconnected(); } else { // if we can't find a phone for the given subId, it is disconnected. return true; } } /** * Get phone radio type and access technology. * * @param phoneId which phone you want to get * @return phone radio type and access technology for input phone ID */ public int getRadioAccessFamily(int phoneId) { if (phoneId >= mProxyPhones.length) { return RadioAccessFamily.RAF_UNKNOWN; } else { return mProxyPhones[phoneId].getRadioAccessFamily(); } } /** * Set phone radio type and access technology for each phone. * * @param rafs an RadioAccessFamily array to indicate all phone's * new radio access family. The length of RadioAccessFamily * must equal to phone count. * @return false if another session is already active and the request is rejected. */ public boolean setRadioCapability(RadioAccessFamily[] rafs) { if (rafs.length != mProxyPhones.length) { throw new RuntimeException("Length of input rafs must equal to total phone count"); } // Check if there is any ongoing transaction and throw an exception if there // is one as this is a programming error. synchronized (mSetRadioAccessFamilyStatus) { for (int i = 0; i < mProxyPhones.length; i++) { if (mSetRadioAccessFamilyStatus[i] != SET_RC_STATUS_IDLE) { // TODO: The right behaviour is to cancel previous request and send this. loge("setRadioCapability: Phone[" + i + "] is not idle. Rejecting request."); return false; } } } // Check we actually need to do anything boolean same = true; for (int i = 0; i < mProxyPhones.length; i++) { if (mProxyPhones[i].getRadioAccessFamily() != rafs[i].getRadioAccessFamily()) { same = false; } } if (same) { // All phones are already set to the requested raf logd("setRadioCapability: Already in requested configuration, nothing to do."); // It isn't really an error, so return true - everything is OK. return true; } // Clear to be sure we're in the initial state clearTransaction(); // Keep a wake lock until we finish radio capability changed mWakeLock.acquire(); return doSetRadioCapabilities(rafs); } private boolean doSetRadioCapabilities(RadioAccessFamily[] rafs) { // A new sessionId for this transaction mRadioCapabilitySessionId = mUniqueIdGenerator.getAndIncrement(); // Start timer to make sure all phones respond within a specific time interval. // Will send FINISH if a timeout occurs. Message msg = mHandler.obtainMessage(EVENT_TIMEOUT, mRadioCapabilitySessionId, 0); mHandler.sendMessageDelayed(msg, SET_RC_TIMEOUT_WAITING_MSEC); synchronized (mSetRadioAccessFamilyStatus) { logd("setRadioCapability: new request session id=" + mRadioCapabilitySessionId); resetRadioAccessFamilyStatusCounter(); for (int i = 0; i < rafs.length; i++) { int phoneId = rafs[i].getPhoneId(); logd("setRadioCapability: phoneId=" + phoneId + " status=STARTING"); mSetRadioAccessFamilyStatus[phoneId] = SET_RC_STATUS_STARTING; mOldRadioAccessFamily[phoneId] = mProxyPhones[phoneId].getRadioAccessFamily(); int requestedRaf = rafs[i].getRadioAccessFamily(); // TODO Set the new radio access family to the maximum of the requested & supported // int supportedRaf = mProxyPhones[i].getRadioAccessFamily(); // mNewRadioAccessFamily[phoneId] = requestedRaf & supportedRaf; mNewRadioAccessFamily[phoneId] = requestedRaf; mCurrentLogicalModemIds[phoneId] = mProxyPhones[phoneId].getModemUuId(); // get the logical mode corresponds to new raf requested and pass the // same as part of SET_RADIO_CAP APPLY phase mNewLogicalModemIds[phoneId] = getLogicalModemIdFromRaf(requestedRaf); logd("setRadioCapability: mOldRadioAccessFamily[" + phoneId + "]=" + mOldRadioAccessFamily[phoneId]); logd("setRadioCapability: mNewRadioAccessFamily[" + phoneId + "]=" + mNewRadioAccessFamily[phoneId]); sendRadioCapabilityRequest( phoneId, mRadioCapabilitySessionId, RadioCapability.RC_PHASE_START, mOldRadioAccessFamily[phoneId], mCurrentLogicalModemIds[phoneId], RadioCapability.RC_STATUS_NONE, EVENT_START_RC_RESPONSE); } } return true; } private Handler mHandler = new Handler() { @Override public void handleMessage(Message msg) { logd("handleMessage msg.what=" + msg.what); switch (msg.what) { case EVENT_START_RC_RESPONSE: onStartRadioCapabilityResponse(msg); break; case EVENT_APPLY_RC_RESPONSE: onApplyRadioCapabilityResponse(msg); break; case EVENT_NOTIFICATION_RC_CHANGED: onNotificationRadioCapabilityChanged(msg); break; case EVENT_FINISH_RC_RESPONSE: onFinishRadioCapabilityResponse(msg); break; case EVENT_TIMEOUT: onTimeoutRadioCapability(msg); break; default: break; } } }; /** * Handle START response * @param msg obj field isa RadioCapability */ private void onStartRadioCapabilityResponse(Message msg) { synchronized (mSetRadioAccessFamilyStatus) { AsyncResult ar = (AsyncResult)msg.obj; if (ar.exception != null) { // just abort now. They didn't take our start so we don't have to revert logd("onStartRadioCapabilityResponse got exception=" + ar.exception); mRadioCapabilitySessionId = mUniqueIdGenerator.getAndIncrement(); Intent intent = new Intent(TelephonyIntents.ACTION_SET_RADIO_CAPABILITY_FAILED); mContext.sendBroadcast(intent); clearTransaction(); return; } RadioCapability rc = (RadioCapability) ((AsyncResult) msg.obj).result; if ((rc == null) || (rc.getSession() != mRadioCapabilitySessionId)) { logd("onStartRadioCapabilityResponse: Ignore session=" + mRadioCapabilitySessionId + " rc=" + rc); return; } mRadioAccessFamilyStatusCounter--; int id = rc.getPhoneId(); if (((AsyncResult) msg.obj).exception != null) { logd("onStartRadioCapabilityResponse: Error response session=" + rc.getSession()); logd("onStartRadioCapabilityResponse: phoneId=" + id + " status=FAIL"); mSetRadioAccessFamilyStatus[id] = SET_RC_STATUS_FAIL; mTransactionFailed = true; } else { logd("onStartRadioCapabilityResponse: phoneId=" + id + " status=STARTED"); mSetRadioAccessFamilyStatus[id] = SET_RC_STATUS_STARTED; } if (mRadioAccessFamilyStatusCounter == 0) { HashSet<String> modemsInUse = new HashSet<String>(mNewLogicalModemIds.length); for (String modemId : mNewLogicalModemIds) { if (!modemsInUse.add(modemId)) { mTransactionFailed = true; Log.wtf(LOG_TAG, "ERROR: sending down the same id for different phones"); } } logd("onStartRadioCapabilityResponse: success=" + !mTransactionFailed); if (mTransactionFailed) { // Sends a variable number of requests, so don't resetRadioAccessFamilyCounter // here. issueFinish(mRadioCapabilitySessionId); } else { // All logical modem accepted the new radio access family, issue the APPLY resetRadioAccessFamilyStatusCounter(); for (int i = 0; i < mProxyPhones.length; i++) { sendRadioCapabilityRequest( i, mRadioCapabilitySessionId, RadioCapability.RC_PHASE_APPLY, mNewRadioAccessFamily[i], mNewLogicalModemIds[i], RadioCapability.RC_STATUS_NONE, EVENT_APPLY_RC_RESPONSE); logd("onStartRadioCapabilityResponse: phoneId=" + i + " status=APPLYING"); mSetRadioAccessFamilyStatus[i] = SET_RC_STATUS_APPLYING; } } } } } /** * Handle APPLY response * @param msg obj field isa RadioCapability */ private void onApplyRadioCapabilityResponse(Message msg) { RadioCapability rc = (RadioCapability) ((AsyncResult) msg.obj).result; if ((rc == null) || (rc.getSession() != mRadioCapabilitySessionId)) { logd("onApplyRadioCapabilityResponse: Ignore session=" + mRadioCapabilitySessionId + " rc=" + rc); return; } logd("onApplyRadioCapabilityResponse: rc=" + rc); if (((AsyncResult) msg.obj).exception != null) { synchronized (mSetRadioAccessFamilyStatus) { logd("onApplyRadioCapabilityResponse: Error response session=" + rc.getSession()); int id = rc.getPhoneId(); logd("onApplyRadioCapabilityResponse: phoneId=" + id + " status=FAIL"); mSetRadioAccessFamilyStatus[id] = SET_RC_STATUS_FAIL; mTransactionFailed = true; } } else { logd("onApplyRadioCapabilityResponse: Valid start expecting notification rc=" + rc); } } /** * Handle the notification unsolicited response associated with the APPLY * @param msg obj field isa RadioCapability */ private void onNotificationRadioCapabilityChanged(Message msg) { RadioCapability rc = (RadioCapability) ((AsyncResult) msg.obj).result; if ((rc == null) || (rc.getSession() != mRadioCapabilitySessionId)) { logd("onNotificationRadioCapabilityChanged: Ignore session=" + mRadioCapabilitySessionId + " rc=" + rc); return; } synchronized (mSetRadioAccessFamilyStatus) { logd("onNotificationRadioCapabilityChanged: rc=" + rc); // skip the overdue response by checking sessionId if (rc.getSession() != mRadioCapabilitySessionId) { logd("onNotificationRadioCapabilityChanged: Ignore session=" + mRadioCapabilitySessionId + " rc=" + rc); return; } int id = rc.getPhoneId(); if ((((AsyncResult) msg.obj).exception != null) || (rc.getStatus() == RadioCapability.RC_STATUS_FAIL)) { logd("onNotificationRadioCapabilityChanged: phoneId=" + id + " status=FAIL"); mSetRadioAccessFamilyStatus[id] = SET_RC_STATUS_FAIL; mTransactionFailed = true; } else { logd("onNotificationRadioCapabilityChanged: phoneId=" + id + " status=SUCCESS"); mSetRadioAccessFamilyStatus[id] = SET_RC_STATUS_SUCCESS; // The modems may have been restarted and forgotten this mDctController.retryAttach(id); mProxyPhones[id].radioCapabilityUpdated(rc); } mRadioAccessFamilyStatusCounter--; if (mRadioAccessFamilyStatusCounter == 0) { logd("onNotificationRadioCapabilityChanged: APPLY URC success=" + mTransactionFailed); issueFinish(mRadioCapabilitySessionId); } } } /** * Handle the FINISH Phase response * @param msg obj field isa RadioCapability */ void onFinishRadioCapabilityResponse(Message msg) { RadioCapability rc = (RadioCapability) ((AsyncResult) msg.obj).result; if ((rc == null) || (rc.getSession() != mRadioCapabilitySessionId)) { logd("onFinishRadioCapabilityResponse: Ignore session=" + mRadioCapabilitySessionId + " rc=" + rc); return; } synchronized (mSetRadioAccessFamilyStatus) { logd(" onFinishRadioCapabilityResponse mRadioAccessFamilyStatusCounter=" + mRadioAccessFamilyStatusCounter); mRadioAccessFamilyStatusCounter--; if (mRadioAccessFamilyStatusCounter == 0) { completeRadioCapabilityTransaction(); } } } private void onTimeoutRadioCapability(Message msg) { if (msg.arg1 != mRadioCapabilitySessionId) { logd("RadioCapability timeout: Ignore msg.arg1=" + msg.arg1 + "!= mRadioCapabilitySessionId=" + mRadioCapabilitySessionId); return; } synchronized(mSetRadioAccessFamilyStatus) { // timed-out. Clean up as best we can for (int i = 0; i < mProxyPhones.length; i++) { logd("RadioCapability timeout: mSetRadioAccessFamilyStatus[" + i + "]=" + mSetRadioAccessFamilyStatus[i]); } // Increment the sessionId as we are completing the transaction below // so we don't want it completed when the FINISH phase is done. int uniqueDifferentId = mUniqueIdGenerator.getAndIncrement(); // send FINISH request with fail status and then uniqueDifferentId mTransactionFailed = true; issueFinish(uniqueDifferentId); } } private void issueFinish(int sessionId) { // Issue FINISH synchronized(mSetRadioAccessFamilyStatus) { for (int i = 0; i < mProxyPhones.length; i++) { logd("issueFinish: phoneId=" + i + " sessionId=" + sessionId + " mTransactionFailed=" + mTransactionFailed); mRadioAccessFamilyStatusCounter++; sendRadioCapabilityRequest( i, sessionId, RadioCapability.RC_PHASE_FINISH, mOldRadioAccessFamily[i], mCurrentLogicalModemIds[i], (mTransactionFailed ? RadioCapability.RC_STATUS_FAIL : RadioCapability.RC_STATUS_SUCCESS), EVENT_FINISH_RC_RESPONSE); if (mTransactionFailed) { logd("issueFinish: phoneId: " + i + " status: FAIL"); // At least one failed, mark them all failed. mSetRadioAccessFamilyStatus[i] = SET_RC_STATUS_FAIL; } } } } private void completeRadioCapabilityTransaction() { // Create the intent to broadcast Intent intent; logd("onFinishRadioCapabilityResponse: success=" + !mTransactionFailed); if (!mTransactionFailed) { ArrayList<RadioAccessFamily> phoneRAFList = new ArrayList<RadioAccessFamily>(); for (int i = 0; i < mProxyPhones.length; i++) { int raf = mProxyPhones[i].getRadioAccessFamily(); logd("radioAccessFamily[" + i + "]=" + raf); RadioAccessFamily phoneRC = new RadioAccessFamily(i, raf); phoneRAFList.add(phoneRC); } intent = new Intent(TelephonyIntents.ACTION_SET_RADIO_CAPABILITY_DONE); intent.putParcelableArrayListExtra(TelephonyIntents.EXTRA_RADIO_ACCESS_FAMILY, phoneRAFList); // make messages about the old transaction obsolete (specifically the timeout) mRadioCapabilitySessionId = mUniqueIdGenerator.getAndIncrement(); // Reinitialize clearTransaction(); } else { intent = new Intent(TelephonyIntents.ACTION_SET_RADIO_CAPABILITY_FAILED); // now revert. mTransactionFailed = false; RadioAccessFamily[] rafs = new RadioAccessFamily[mProxyPhones.length]; for (int phoneId = 0; phoneId < mProxyPhones.length; phoneId++) { rafs[phoneId] = new RadioAccessFamily(phoneId, mOldRadioAccessFamily[phoneId]); } doSetRadioCapabilities(rafs); } // Broadcast that we're done mContext.sendBroadcast(intent); } // Clear this transaction private void clearTransaction() { logd("clearTransaction"); synchronized(mSetRadioAccessFamilyStatus) { for (int i = 0; i < mProxyPhones.length; i++) { logd("clearTransaction: phoneId=" + i + " status=IDLE"); mSetRadioAccessFamilyStatus[i] = SET_RC_STATUS_IDLE; mOldRadioAccessFamily[i] = 0; mNewRadioAccessFamily[i] = 0; mTransactionFailed = false; } if (mWakeLock.isHeld()) { mWakeLock.release(); } } } private void resetRadioAccessFamilyStatusCounter() { mRadioAccessFamilyStatusCounter = mProxyPhones.length; } private void sendRadioCapabilityRequest(int phoneId, int sessionId, int rcPhase, int radioFamily, String logicalModemId, int status, int eventId) { RadioCapability requestRC = new RadioCapability( phoneId, sessionId, rcPhase, radioFamily, logicalModemId, status); mProxyPhones[phoneId].setRadioCapability( requestRC, mHandler.obtainMessage(eventId)); } // This method will return max number of raf bits supported from the raf // values currently stored in all phone objects public int getMaxRafSupported() { int[] numRafSupported = new int[mProxyPhones.length]; int maxNumRafBit = 0; int maxRaf = RadioAccessFamily.RAF_UNKNOWN; for (int len = 0; len < mProxyPhones.length; len++) { numRafSupported[len] = Integer.bitCount(mProxyPhones[len].getRadioAccessFamily()); if (maxNumRafBit < numRafSupported[len]) { maxNumRafBit = numRafSupported[len]; maxRaf = mProxyPhones[len].getRadioAccessFamily(); } } return maxRaf; } // This method will return minimum number of raf bits supported from the raf // values currently stored in all phone objects public int getMinRafSupported() { int[] numRafSupported = new int[mProxyPhones.length]; int minNumRafBit = 0; int minRaf = RadioAccessFamily.RAF_UNKNOWN; for (int len = 0; len < mProxyPhones.length; len++) { numRafSupported[len] = Integer.bitCount(mProxyPhones[len].getRadioAccessFamily()); if ((minNumRafBit == 0) || (minNumRafBit > numRafSupported[len])) { minNumRafBit = numRafSupported[len]; minRaf = mProxyPhones[len].getRadioAccessFamily(); } } return minRaf; } // This method checks current raf values stored in all phones and // whicheve phone raf matches with input raf, returns modemId from that phone private String getLogicalModemIdFromRaf(int raf) { String modemUuid = null; for (int phoneId = 0; phoneId < mProxyPhones.length; phoneId++) { if (mProxyPhones[phoneId].getRadioAccessFamily() == raf) { modemUuid = mProxyPhones[phoneId].getModemUuId(); break; } } return modemUuid; } private void logd(String string) { Rlog.d(LOG_TAG, string); } private void loge(String string) { Rlog.e(LOG_TAG, string); } public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { try { mDctController.dump(fd, pw, args); } catch (Exception e) { e.printStackTrace(); } } }