/* * Copyright (C) 2012 The CyanogenMod 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 static com.android.internal.telephony.RILConstants.*; import android.content.Context; import android.media.AudioManager; import android.os.AsyncResult; import android.os.Handler; import android.os.HandlerThread; import android.os.Looper; import android.os.Message; import android.os.Parcel; import android.telephony.SmsMessage; import android.os.SystemProperties; import android.os.SystemClock; import android.text.TextUtils; import android.util.Log; import android.telephony.SignalStrength; import android.telephony.PhoneNumberUtils; import com.android.internal.telephony.RILConstants; import com.android.internal.telephony.gsm.SmsBroadcastConfigInfo; import com.android.internal.telephony.cdma.CdmaInformationRecords; import com.android.internal.telephony.cdma.CdmaInformationRecords.CdmaSignalInfoRec; import com.android.internal.telephony.cdma.SignalToneUtil; import java.io.IOException; import java.util.ArrayList; import java.util.Collections; /** * Qualcomm RIL for the Samsung family. * Quad core Exynos4 with Qualcomm modem and later is supported * Snapdragon S3 and later is supported * This RIL is univerisal meaning it supports CDMA and GSM radio. * Handles most GSM and CDMA cases. * {@hide} */ public class SamsungQualcommRIL extends RIL implements CommandsInterface { private AudioManager mAudioManager; private Object mSMSLock = new Object(); private boolean mIsSendingSMS = false; private boolean isGSM = false; public static final long SEND_SMS_TIMEOUT_IN_MS = 30000; private String homeOperator= SystemProperties.get("ro.cdma.home.operator.numeric"); private String operator= SystemProperties.get("ro.cdma.home.operator.alpha"); private boolean oldRilState = needsOldRilFeature("exynos4RadioState"); public SamsungQualcommRIL(Context context, int networkMode, int cdmaSubscription) { super(context, networkMode, cdmaSubscription); mAudioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE); } @Override protected Object responseIccCardStatus(Parcel p) { IccCardApplicationStatus appStatus; IccCardStatus cardStatus = new IccCardStatus(); cardStatus.setCardState(p.readInt()); cardStatus.setUniversalPinState(p.readInt()); cardStatus.mGsmUmtsSubscriptionAppIndex = p.readInt(); cardStatus.mCdmaSubscriptionAppIndex = p.readInt(); cardStatus.mImsSubscriptionAppIndex = p.readInt(); int numApplications = p.readInt(); // limit to maximum allowed applications if (numApplications > IccCardStatus.CARD_MAX_APPS) { numApplications = IccCardStatus.CARD_MAX_APPS; } cardStatus.mApplications = new IccCardApplicationStatus[numApplications]; for (int i = 0 ; i < numApplications ; i++) { appStatus = new IccCardApplicationStatus(); appStatus.app_type = appStatus.AppTypeFromRILInt(p.readInt()); appStatus.app_state = appStatus.AppStateFromRILInt(p.readInt()); appStatus.perso_substate = appStatus.PersoSubstateFromRILInt(p.readInt()); appStatus.aid = p.readString(); appStatus.app_label = p.readString(); appStatus.pin1_replaced = p.readInt(); appStatus.pin1 = appStatus.PinStateFromRILInt(p.readInt()); appStatus.pin2 = appStatus.PinStateFromRILInt(p.readInt()); p.readInt(); // remaining_count_pin1 - pin1_num_retries p.readInt(); // remaining_count_puk1 - puk1_num_retries p.readInt(); // remaining_count_pin2 - pin2_num_retries p.readInt(); // remaining_count_puk2 - puk2_num_retries p.readInt(); // - perso_unblock_retries cardStatus.mApplications[i] = appStatus; } return cardStatus; } @Override public void sendCdmaSms(byte[] pdu, Message result) { smsLock(); super.sendCdmaSms(pdu, result); } @Override public void sendSMS (String smscPDU, String pdu, Message result) { smsLock(); super.sendSMS(smscPDU, pdu, result); } private void smsLock(){ // Do not send a new SMS until the response for the previous SMS has been received // * for the error case where the response never comes back, time out after // 30 seconds and just try the next SEND_SMS synchronized (mSMSLock) { long timeoutTime = SystemClock.elapsedRealtime() + SEND_SMS_TIMEOUT_IN_MS; long waitTimeLeft = SEND_SMS_TIMEOUT_IN_MS; while (mIsSendingSMS && (waitTimeLeft > 0)) { Log.d(LOG_TAG, "sendSMS() waiting for response of previous SEND_SMS"); try { mSMSLock.wait(waitTimeLeft); } catch (InterruptedException ex) { // ignore the interrupt and rewait for the remainder } waitTimeLeft = timeoutTime - SystemClock.elapsedRealtime(); } if (waitTimeLeft <= 0) { Log.e(LOG_TAG, "sendSms() timed out waiting for response of previous CDMA_SEND_SMS"); } mIsSendingSMS = true; } } @Override protected Object responseSignalStrength(Parcel p) { int numInts = 12; int response[]; // This is a mashup of algorithms used in // SamsungQualcommUiccRIL.java // Get raw data response = new int[numInts]; for (int i = 0; i < numInts; i++) { response[i] = p.readInt(); } //gsm response[0] &= 0xff; //gsmDbm //cdma // Take just the least significant byte as the signal strength response[2] %= 256; response[4] %= 256; // RIL_LTE_SignalStrength if (response[7] == 99) { // If LTE is not enabled, clear LTE results // 7-11 must be -1 for GSM signal strength to be used (see // frameworks/base/telephony/java/android/telephony/SignalStrength.java) response[8] = SignalStrength.INVALID; response[9] = SignalStrength.INVALID; response[10] = SignalStrength.INVALID; response[11] = SignalStrength.INVALID; }else{ // lte is gsm on samsung/qualcomm cdma stack response[7] &= 0xff; } return new SignalStrength(response[0], response[1], response[2], response[3], response[4], response[5], response[6], response[7], response[8], response[9], response[10], response[11], isGSM); } @Override protected RadioState getRadioStateFromInt(int stateInt) { if(!oldRilState) super.getRadioStateFromInt(stateInt); RadioState state; /* RIL_RadioState ril.h */ switch(stateInt) { case 0: state = RadioState.RADIO_OFF; break; case 1: case 2: state = RadioState.RADIO_UNAVAILABLE; break; case 4: // When SIM is PIN-unlocked, RIL doesn't respond with RIL_UNSOL_RESPONSE_SIM_STATUS_CHANGED. // We notify the system here. Log.d(LOG_TAG, "SIM is PIN-unlocked now"); if (mIccStatusChangedRegistrants != null) { mIccStatusChangedRegistrants.notifyRegistrants(); } case 3: case 5: case 6: case 7: case 8: case 9: case 10: case 13: state = RadioState.RADIO_ON; break; default: throw new RuntimeException( "Unrecognized RIL_RadioState: " + stateInt); } return state; } @Override public void setPhoneType(int phoneType){ super.setPhoneType(phoneType); isGSM = (phoneType != RILConstants.CDMA_PHONE); } @Override protected Object responseCallList(Parcel p) { samsungDriverCall = (needsOldRilFeature("newDriverCall") && !isGSM) || mRilVersion < 7 ? false : true; return super.responseCallList(p); } @Override protected void processUnsolicited (Parcel p) { Object ret; int dataPosition = p.dataPosition(); // save off position within the Parcel int response = p.readInt(); switch(response) { case RIL_UNSOL_RIL_CONNECTED: // Fix for NV/RUIM setting on CDMA SIM devices // skip getcdmascriptionsource as if qualcomm handles it in the ril binary ret = responseInts(p); setRadioPower(false, null); setPreferredNetworkType(mPreferredNetworkType, null); notifyRegistrantsRilConnectionChanged(((int[])ret)[0]); break; case RIL_UNSOL_NITZ_TIME_RECEIVED: handleNitzTimeReceived(p); break; // SAMSUNG STATES case SamsungExynos4RIL.RIL_UNSOL_AM: ret = responseString(p); String amString = (String) ret; Log.d(LOG_TAG, "Executing AM: " + amString); try { Runtime.getRuntime().exec("am " + amString); } catch (IOException e) { e.printStackTrace(); Log.e(LOG_TAG, "am " + amString + " could not be executed."); } break; case SamsungExynos4RIL.RIL_UNSOL_RESPONSE_HANDOVER: ret = responseVoid(p); break; case 1036: ret = responseVoid(p); break; case SamsungExynos4RIL.RIL_UNSOL_WB_AMR_STATE: ret = responseInts(p); setWbAmr(((int[])ret)[0]); break; default: // Rewind the Parcel p.setDataPosition(dataPosition); // Forward responses that we are not overriding to the super class super.processUnsolicited(p); return; } } @Override protected void processSolicited (Parcel p) { if (isGSM){ super.processSolicited(p); return; } int serial, error; boolean found = false; serial = p.readInt(); error = p.readInt(); RILRequest rr; rr = findAndRemoveRequestFromList(serial); if (rr == null) { Log.w(LOG_TAG, "Unexpected solicited response! sn: " + serial + " error: " + error); return; } Object ret = null; if (error == 0 || p.dataAvail() > 0) { // either command succeeds or command fails but with data payload try {switch (rr.mRequest) { /* cat libs/telephony/ril_commands.h \ | egrep "^ *{RIL_" \ | sed -re 's/\{([^,]+),[^,]+,([^}]+).+/case \1: ret = \2(p); break;/' */ case RIL_REQUEST_GET_SIM_STATUS: ret = responseIccCardStatus(p); break; case RIL_REQUEST_ENTER_SIM_PIN: ret = responseInts(p); break; case RIL_REQUEST_ENTER_SIM_PUK: ret = responseInts(p); break; case RIL_REQUEST_ENTER_SIM_PIN2: ret = responseInts(p); break; case RIL_REQUEST_ENTER_SIM_PUK2: ret = responseInts(p); break; case RIL_REQUEST_CHANGE_SIM_PIN: ret = responseInts(p); break; case RIL_REQUEST_CHANGE_SIM_PIN2: ret = responseInts(p); break; case RIL_REQUEST_ENTER_NETWORK_DEPERSONALIZATION: ret = responseInts(p); break; case RIL_REQUEST_GET_CURRENT_CALLS: ret = responseCallList(p); break; case RIL_REQUEST_DIAL: ret = responseVoid(p); break; case RIL_REQUEST_GET_IMSI: ret = responseString(p); break; case RIL_REQUEST_HANGUP: ret = responseVoid(p); break; case RIL_REQUEST_HANGUP_WAITING_OR_BACKGROUND: ret = responseVoid(p); break; case RIL_REQUEST_HANGUP_FOREGROUND_RESUME_BACKGROUND: { if (mTestingEmergencyCall.getAndSet(false)) { if (mEmergencyCallbackModeRegistrant != null) { riljLog("testing emergency call, notify ECM Registrants"); mEmergencyCallbackModeRegistrant.notifyRegistrant(); } } ret = responseVoid(p); break; } case RIL_REQUEST_SWITCH_WAITING_OR_HOLDING_AND_ACTIVE: ret = responseVoid(p); break; case RIL_REQUEST_CONFERENCE: ret = responseVoid(p); break; case RIL_REQUEST_UDUB: ret = responseVoid(p); break; case RIL_REQUEST_LAST_CALL_FAIL_CAUSE: ret = responseInts(p); break; case RIL_REQUEST_SIGNAL_STRENGTH: ret = responseSignalStrength(p); break; //modification start // prevent exceptions from happenimg because the null value is null or a hexadecimel. so convert if it is not null case RIL_REQUEST_VOICE_REGISTRATION_STATE: ret = responseVoiceDataRegistrationState(p); break; case RIL_REQUEST_DATA_REGISTRATION_STATE: ret = responseVoiceDataRegistrationState(p); break; // this fixes bogus values the modem creates // sometimes the ril may print out // (always on sprint) // sprint: (empty,empty,31000) // this problemaic on sprint, lte won't start, response is slow //speeds up response time on eherpderpd/lte networks case RIL_REQUEST_OPERATOR: ret = operatorCheck(p); break; //end modification case RIL_REQUEST_RADIO_POWER: ret = responseVoid(p); break; case RIL_REQUEST_DTMF: ret = responseVoid(p); break; case RIL_REQUEST_SEND_SMS: ret = responseSMS(p); break; case RIL_REQUEST_SEND_SMS_EXPECT_MORE: ret = responseSMS(p); break; case RIL_REQUEST_SETUP_DATA_CALL: ret = responseSetupDataCall(p); break; case RIL_REQUEST_SIM_IO: ret = responseICC_IO(p); break; case RIL_REQUEST_SEND_USSD: ret = responseVoid(p); break; case RIL_REQUEST_CANCEL_USSD: ret = responseVoid(p); break; case RIL_REQUEST_GET_CLIR: ret = responseInts(p); break; case RIL_REQUEST_SET_CLIR: ret = responseVoid(p); break; case RIL_REQUEST_QUERY_CALL_FORWARD_STATUS: ret = responseCallForward(p); break; case RIL_REQUEST_SET_CALL_FORWARD: ret = responseVoid(p); break; case RIL_REQUEST_QUERY_CALL_WAITING: ret = responseInts(p); break; case RIL_REQUEST_SET_CALL_WAITING: ret = responseVoid(p); break; case RIL_REQUEST_SMS_ACKNOWLEDGE: ret = responseVoid(p); break; case RIL_REQUEST_GET_IMEI: ret = responseString(p); break; case RIL_REQUEST_GET_IMEISV: ret = responseString(p); break; case RIL_REQUEST_ANSWER: ret = responseVoid(p); break; case RIL_REQUEST_DEACTIVATE_DATA_CALL: ret = responseVoid(p); break; case RIL_REQUEST_QUERY_FACILITY_LOCK: ret = responseInts(p); break; case RIL_REQUEST_SET_FACILITY_LOCK: ret = responseInts(p); break; case RIL_REQUEST_CHANGE_BARRING_PASSWORD: ret = responseVoid(p); break; case RIL_REQUEST_QUERY_NETWORK_SELECTION_MODE: ret = responseInts(p); break; case RIL_REQUEST_SET_NETWORK_SELECTION_AUTOMATIC: ret = responseVoid(p); break; case RIL_REQUEST_SET_NETWORK_SELECTION_MANUAL: ret = responseVoid(p); break; case RIL_REQUEST_QUERY_AVAILABLE_NETWORKS : ret = responseOperatorInfos(p); break; case RIL_REQUEST_DTMF_START: ret = responseVoid(p); break; case RIL_REQUEST_DTMF_STOP: ret = responseVoid(p); break; case RIL_REQUEST_BASEBAND_VERSION: ret = responseString(p); break; case RIL_REQUEST_SEPARATE_CONNECTION: ret = responseVoid(p); break; case RIL_REQUEST_SET_MUTE: ret = responseVoid(p); break; case RIL_REQUEST_GET_MUTE: ret = responseInts(p); break; case RIL_REQUEST_QUERY_CLIP: ret = responseInts(p); break; case RIL_REQUEST_LAST_DATA_CALL_FAIL_CAUSE: ret = responseInts(p); break; case RIL_REQUEST_DATA_CALL_LIST: ret = responseDataCallList(p); break; case RIL_REQUEST_RESET_RADIO: ret = responseVoid(p); break; case RIL_REQUEST_OEM_HOOK_RAW: ret = responseRaw(p); break; case RIL_REQUEST_OEM_HOOK_STRINGS: ret = responseStrings(p); break; case RIL_REQUEST_SCREEN_STATE: ret = responseVoid(p); break; case RIL_REQUEST_SET_SUPP_SVC_NOTIFICATION: ret = responseVoid(p); break; case RIL_REQUEST_WRITE_SMS_TO_SIM: ret = responseInts(p); break; case RIL_REQUEST_DELETE_SMS_ON_SIM: ret = responseVoid(p); break; case RIL_REQUEST_SET_BAND_MODE: ret = responseVoid(p); break; case RIL_REQUEST_QUERY_AVAILABLE_BAND_MODE: ret = responseInts(p); break; case RIL_REQUEST_STK_GET_PROFILE: ret = responseString(p); break; case RIL_REQUEST_STK_SET_PROFILE: ret = responseVoid(p); break; case RIL_REQUEST_STK_SEND_ENVELOPE_COMMAND: ret = responseString(p); break; case RIL_REQUEST_STK_SEND_TERMINAL_RESPONSE: ret = responseVoid(p); break; case RIL_REQUEST_STK_HANDLE_CALL_SETUP_REQUESTED_FROM_SIM: ret = responseInts(p); break; case RIL_REQUEST_EXPLICIT_CALL_TRANSFER: ret = responseVoid(p); break; case RIL_REQUEST_SET_PREFERRED_NETWORK_TYPE: ret = responseVoid(p); break; case RIL_REQUEST_GET_PREFERRED_NETWORK_TYPE: ret = responseGetPreferredNetworkType(p); break; case RIL_REQUEST_GET_NEIGHBORING_CELL_IDS: ret = responseCellList(p); break; case RIL_REQUEST_SET_LOCATION_UPDATES: ret = responseVoid(p); break; case RIL_REQUEST_CDMA_SET_SUBSCRIPTION_SOURCE: ret = responseVoid(p); break; case RIL_REQUEST_CDMA_SET_ROAMING_PREFERENCE: ret = responseVoid(p); break; case RIL_REQUEST_CDMA_QUERY_ROAMING_PREFERENCE: ret = responseInts(p); break; case RIL_REQUEST_SET_TTY_MODE: ret = responseVoid(p); break; case RIL_REQUEST_QUERY_TTY_MODE: ret = responseInts(p); break; case RIL_REQUEST_CDMA_SET_PREFERRED_VOICE_PRIVACY_MODE: ret = responseVoid(p); break; case RIL_REQUEST_CDMA_QUERY_PREFERRED_VOICE_PRIVACY_MODE: ret = responseInts(p); break; case RIL_REQUEST_CDMA_FLASH: ret = responseVoid(p); break; case RIL_REQUEST_CDMA_BURST_DTMF: ret = responseVoid(p); break; case RIL_REQUEST_CDMA_SEND_SMS: ret = responseSMS(p); break; case RIL_REQUEST_CDMA_SMS_ACKNOWLEDGE: ret = responseVoid(p); break; case RIL_REQUEST_GSM_GET_BROADCAST_CONFIG: ret = responseGmsBroadcastConfig(p); break; case RIL_REQUEST_GSM_SET_BROADCAST_CONFIG: ret = responseVoid(p); break; case RIL_REQUEST_GSM_BROADCAST_ACTIVATION: ret = responseVoid(p); break; case RIL_REQUEST_CDMA_GET_BROADCAST_CONFIG: ret = responseCdmaBroadcastConfig(p); break; case RIL_REQUEST_CDMA_SET_BROADCAST_CONFIG: ret = responseVoid(p); break; case RIL_REQUEST_CDMA_BROADCAST_ACTIVATION: ret = responseVoid(p); break; case RIL_REQUEST_CDMA_VALIDATE_AND_WRITE_AKEY: ret = responseVoid(p); break; case RIL_REQUEST_CDMA_SUBSCRIPTION: ret = responseStrings(p); break; case RIL_REQUEST_CDMA_WRITE_SMS_TO_RUIM: ret = responseInts(p); break; case RIL_REQUEST_CDMA_DELETE_SMS_ON_RUIM: ret = responseVoid(p); break; case RIL_REQUEST_DEVICE_IDENTITY: ret = responseStrings(p); break; case RIL_REQUEST_GET_SMSC_ADDRESS: ret = responseString(p); break; case RIL_REQUEST_SET_SMSC_ADDRESS: ret = responseVoid(p); break; case RIL_REQUEST_EXIT_EMERGENCY_CALLBACK_MODE: ret = responseVoid(p); break; case RIL_REQUEST_REPORT_SMS_MEMORY_STATUS: ret = responseVoid(p); break; case RIL_REQUEST_REPORT_STK_SERVICE_IS_RUNNING: ret = responseVoid(p); break; case RIL_REQUEST_CDMA_GET_SUBSCRIPTION_SOURCE: ret = responseInts(p); break; case RIL_REQUEST_ISIM_AUTHENTICATION: ret = responseString(p); break; case RIL_REQUEST_ACKNOWLEDGE_INCOMING_GSM_SMS_WITH_PDU: ret = responseVoid(p); break; case RIL_REQUEST_STK_SEND_ENVELOPE_WITH_STATUS: ret = responseICC_IO(p); break; case RIL_REQUEST_VOICE_RADIO_TECH: ret = responseInts(p); break; default: throw new RuntimeException("Unrecognized solicited response: " + rr.mRequest); //break; }} catch (Throwable tr) { // Exceptions here usually mean invalid RIL responses Log.w(LOG_TAG, rr.serialString() + "< " + requestToString(rr.mRequest) + " exception, possible invalid RIL response", tr); if (rr.mResult != null) { AsyncResult.forMessage(rr.mResult, null, tr); rr.mResult.sendToTarget(); } rr.release(); return; } } if (error != 0) { switch (rr.mRequest) { case RIL_REQUEST_ENTER_SIM_PIN: case RIL_REQUEST_ENTER_SIM_PIN2: case RIL_REQUEST_CHANGE_SIM_PIN: case RIL_REQUEST_CHANGE_SIM_PIN2: case RIL_REQUEST_SET_FACILITY_LOCK: if (mIccStatusChangedRegistrants != null) { if (RILJ_LOGD) { riljLog("ON some errors fakeSimStatusChanged: reg count=" + mIccStatusChangedRegistrants.size()); } mIccStatusChangedRegistrants.notifyRegistrants(); } break; } rr.onError(error, ret); rr.release(); return; } if (RILJ_LOGD) riljLog(rr.serialString() + "< " + requestToString(rr.mRequest) + " " + retToString(rr.mRequest, ret)); if (rr.mResult != null) { AsyncResult.forMessage(rr.mResult, ret, null); rr.mResult.sendToTarget(); } rr.release(); } // CDMA FIXES, this fixes bogus values in nv/sim on d2/jf/t0 cdma family private Object operatorCheck(Parcel p) { String response[] = (String[])responseStrings(p); for(int i=0; i=2) ) response[i]=homeOperator; } } return response; } // handle exceptions private Object responseVoiceDataRegistrationState(Parcel p) { String response[] = (String[])responseStrings(p); if ( response.length>=10){ for(int i=6; i<=9; i++){ if (response[i]== null){ response[i]=Integer.toString(Integer.MAX_VALUE); } else { try { Integer.parseInt(response[i]); } catch(NumberFormatException e) { response[i]=Integer.toString(Integer.parseInt(response[i],16)); } } } } return response; } // has no effect // for debugging purposes , just generate out anything from response public static String s(String a[]){ StringBuffer result = new StringBuffer(); for (int i = 0; i < a.length; i++) { result.append( a[i] ); result.append(","); } return result.toString(); } // end of cdma fix /** * Set audio parameter "wb_amr" for HD-Voice (Wideband AMR). * * @param state: 0 = unsupported, 1 = supported. * REQUIRED FOR JF FAMILY THIS SETS THE INFORMATION * CRASHES WITHOUT THIS FUNCTION * part of the new csd binary */ private void setWbAmr(int state) { if (state == 1) { Log.d(LOG_TAG, "setWbAmr(): setting audio parameter - wb_amr=on"); mAudioManager.setParameters("wb_amr=on"); } else { Log.d(LOG_TAG, "setWbAmr(): setting audio parameter - wb_amr=off"); mAudioManager.setParameters("wb_amr=off"); } } // Workaround for Samsung CDMA "ring of death" bug: // // Symptom: As soon as the phone receives notice of an incoming call, an // audible "old fashioned ring" is emitted through the earpiece and // persists through the duration of the call, or until reboot if the call // isn't answered. // // Background: The CDMA telephony stack implements a number of "signal info // tones" that are locally generated by ToneGenerator and mixed into the // voice call path in response to radio RIL_UNSOL_CDMA_INFO_REC requests. // One of these tones, IS95_CONST_IR_SIG_IS54B_L, is requested by the // radio just prior to notice of an incoming call when the voice call // path is muted. CallNotifier is responsible for stopping all signal // tones (by "playing" the TONE_CDMA_SIGNAL_OFF tone) upon receipt of a // "new ringing connection", prior to unmuting the voice call path. // // Problem: CallNotifier's incoming call path is designed to minimize // latency to notify users of incoming calls ASAP. Thus, // SignalInfoTonePlayer requests are handled asynchronously by spawning a // one-shot thread for each. Unfortunately the ToneGenerator API does // not provide a mechanism to specify an ordering on requests, and thus, // unexpected thread interleaving may result in ToneGenerator processing // them in the opposite order that CallNotifier intended. In this case, // playing the "signal off" tone first, followed by playing the "old // fashioned ring" indefinitely. // // Solution: An API change to ToneGenerator is required to enable // SignalInfoTonePlayer to impose an ordering on requests (i.e., drop any // request that's older than the most recent observed). Such a change, // or another appropriate fix should be implemented in AOSP first. // // Workaround: Intercept RIL_UNSOL_CDMA_INFO_REC requests from the radio, // check for a signal info record matching IS95_CONST_IR_SIG_IS54B_L, and // drop it so it's never seen by CallNotifier. If other signal tones are // observed to cause this problem, they should be dropped here as well. @Override protected void notifyRegistrantsCdmaInfoRec(CdmaInformationRecords infoRec) { final int response = RIL_UNSOL_CDMA_INFO_REC; if (infoRec.record instanceof CdmaSignalInfoRec) { CdmaSignalInfoRec sir = (CdmaSignalInfoRec) infoRec.record; if (sir != null && sir.isPresent && sir.signalType == SignalToneUtil.IS95_CONST_IR_SIGNAL_IS54B && sir.alertPitch == SignalToneUtil.IS95_CONST_IR_ALERT_MED && sir.signal == SignalToneUtil.IS95_CONST_IR_SIG_IS54B_L) { Log.d(LOG_TAG, "Dropping \"" + responseToString(response) + " " + retToString(response, sir) + "\" to prevent \"ring of death\" bug."); return; } } super.notifyRegistrantsCdmaInfoRec(infoRec); } private void handleNitzTimeReceived(Parcel p) { String nitz = (String)responseString(p); //if (RILJ_LOGD) unsljLogRet(RIL_UNSOL_NITZ_TIME_RECEIVED, nitz); // has bonus long containing milliseconds since boot that the NITZ // time was received long nitzReceiveTime = p.readLong(); Object[] result = new Object[2]; String fixedNitz = nitz; String[] nitzParts = nitz.split(","); if (nitzParts.length == 4) { // 0=date, 1=time+zone, 2=dst, 3=garbage that confuses GsmServiceStateTracker (so remove it) fixedNitz = nitzParts[0]+","+nitzParts[1]+","+nitzParts[2]+","; } result[0] = fixedNitz; result[1] = Long.valueOf(nitzReceiveTime); boolean ignoreNitz = SystemProperties.getBoolean( TelephonyProperties.PROPERTY_IGNORE_NITZ, false); if (ignoreNitz) { if (RILJ_LOGD) riljLog("ignoring UNSOL_NITZ_TIME_RECEIVED"); } else { if (mNITZTimeRegistrant != null) { mNITZTimeRegistrant .notifyRegistrant(new AsyncResult (null, result, null)); } else { // in case NITZ time registrant isnt registered yet mLastNITZTimeInfo = result; } } } @Override protected Object responseSMS(Parcel p) { // Notify that sendSMS() can send the next SMS synchronized (mSMSLock) { mIsSendingSMS = false; mSMSLock.notify(); } return super.responseSMS(p); } }