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      1 /* //device/libs/telephony/ril.cpp
      2 **
      3 ** Copyright 2006, The Android Open Source Project
      4 **
      5 ** Licensed under the Apache License, Version 2.0 (the "License");
      6 ** you may not use this file except in compliance with the License.
      7 ** You may obtain a copy of the License at
      8 **
      9 **     http://www.apache.org/licenses/LICENSE-2.0
     10 **
     11 ** Unless required by applicable law or agreed to in writing, software
     12 ** distributed under the License is distributed on an "AS IS" BASIS,
     13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14 ** See the License for the specific language governing permissions and
     15 ** limitations under the License.
     16 */
     17 
     18 #define LOG_TAG "RILC"
     19 
     20 #include <hardware_legacy/power.h>
     21 #include <telephony/ril.h>
     22 #include <telephony/ril_cdma_sms.h>
     23 #include <cutils/sockets.h>
     24 #include <cutils/jstring.h>
     25 #include <telephony/record_stream.h>
     26 #include <utils/Log.h>
     27 #include <utils/SystemClock.h>
     28 #include <pthread.h>
     29 #include <cutils/jstring.h>
     30 #include <sys/types.h>
     31 #include <sys/limits.h>
     32 #include <sys/system_properties.h>
     33 #include <pwd.h>
     34 #include <stdio.h>
     35 #include <stdlib.h>
     36 #include <stdarg.h>
     37 #include <string.h>
     38 #include <unistd.h>
     39 #include <fcntl.h>
     40 #include <time.h>
     41 #include <errno.h>
     42 #include <assert.h>
     43 #include <ctype.h>
     44 #include <sys/un.h>
     45 #include <assert.h>
     46 #include <netinet/in.h>
     47 #include <cutils/properties.h>
     48 #include <RilSapSocket.h>
     49 #include <ril_service.h>
     50 #include <sap_service.h>
     51 
     52 extern "C" void
     53 RIL_onRequestComplete(RIL_Token t, RIL_Errno e, void *response, size_t responselen);
     54 
     55 extern "C" void
     56 RIL_onRequestAck(RIL_Token t);
     57 namespace android {
     58 
     59 #define PHONE_PROCESS "radio"
     60 #define BLUETOOTH_PROCESS "bluetooth"
     61 
     62 #define ANDROID_WAKE_LOCK_NAME "radio-interface"
     63 
     64 #define ANDROID_WAKE_LOCK_SECS 0
     65 #define ANDROID_WAKE_LOCK_USECS 200000
     66 
     67 #define PROPERTY_RIL_IMPL "gsm.version.ril-impl"
     68 
     69 // match with constant in RIL.java
     70 #define MAX_COMMAND_BYTES (8 * 1024)
     71 
     72 // Basically: memset buffers that the client library
     73 // shouldn't be using anymore in an attempt to find
     74 // memory usage issues sooner.
     75 #define MEMSET_FREED 1
     76 
     77 #define NUM_ELEMS(a)     (sizeof (a) / sizeof (a)[0])
     78 
     79 /* Negative values for private RIL errno's */
     80 #define RIL_ERRNO_INVALID_RESPONSE (-1)
     81 #define RIL_ERRNO_NO_MEMORY (-12)
     82 
     83 // request, response, and unsolicited msg print macro
     84 #define PRINTBUF_SIZE 8096
     85 
     86 enum WakeType {DONT_WAKE, WAKE_PARTIAL};
     87 
     88 typedef struct {
     89     int requestNumber;
     90     int (*responseFunction) (int slotId, int responseType, int token,
     91             RIL_Errno e, void *response, size_t responselen);
     92     WakeType wakeType;
     93 } UnsolResponseInfo;
     94 
     95 typedef struct UserCallbackInfo {
     96     RIL_TimedCallback p_callback;
     97     void *userParam;
     98     struct ril_event event;
     99     struct UserCallbackInfo *p_next;
    100 } UserCallbackInfo;
    101 
    102 extern "C" const char * failCauseToString(RIL_Errno);
    103 extern "C" const char * callStateToString(RIL_CallState);
    104 extern "C" const char * radioStateToString(RIL_RadioState);
    105 extern "C" const char * rilSocketIdToString(RIL_SOCKET_ID socket_id);
    106 
    107 extern "C"
    108 char ril_service_name_base[MAX_SERVICE_NAME_LENGTH] = RIL_SERVICE_NAME_BASE;
    109 extern "C"
    110 char ril_service_name[MAX_SERVICE_NAME_LENGTH] = RIL1_SERVICE_NAME;
    111 /*******************************************************************/
    112 
    113 RIL_RadioFunctions s_callbacks = {0, NULL, NULL, NULL, NULL, NULL};
    114 static int s_registerCalled = 0;
    115 
    116 static pthread_t s_tid_dispatch;
    117 static int s_started = 0;
    118 
    119 static int s_fdWakeupRead;
    120 static int s_fdWakeupWrite;
    121 
    122 int s_wakelock_count = 0;
    123 
    124 static struct ril_event s_wakeupfd_event;
    125 
    126 static pthread_mutex_t s_pendingRequestsMutex = PTHREAD_MUTEX_INITIALIZER;
    127 static pthread_mutex_t s_wakeLockCountMutex = PTHREAD_MUTEX_INITIALIZER;
    128 static RequestInfo *s_pendingRequests = NULL;
    129 
    130 #if (SIM_COUNT >= 2)
    131 static pthread_mutex_t s_pendingRequestsMutex_socket2  = PTHREAD_MUTEX_INITIALIZER;
    132 static RequestInfo *s_pendingRequests_socket2          = NULL;
    133 #endif
    134 
    135 #if (SIM_COUNT >= 3)
    136 static pthread_mutex_t s_pendingRequestsMutex_socket3  = PTHREAD_MUTEX_INITIALIZER;
    137 static RequestInfo *s_pendingRequests_socket3          = NULL;
    138 #endif
    139 
    140 #if (SIM_COUNT >= 4)
    141 static pthread_mutex_t s_pendingRequestsMutex_socket4  = PTHREAD_MUTEX_INITIALIZER;
    142 static RequestInfo *s_pendingRequests_socket4          = NULL;
    143 #endif
    144 
    145 static const struct timeval TIMEVAL_WAKE_TIMEOUT = {ANDROID_WAKE_LOCK_SECS,ANDROID_WAKE_LOCK_USECS};
    146 
    147 
    148 static pthread_mutex_t s_startupMutex = PTHREAD_MUTEX_INITIALIZER;
    149 static pthread_cond_t s_startupCond = PTHREAD_COND_INITIALIZER;
    150 
    151 static UserCallbackInfo *s_last_wake_timeout_info = NULL;
    152 
    153 static void *s_lastNITZTimeData = NULL;
    154 static size_t s_lastNITZTimeDataSize;
    155 
    156 #if RILC_LOG
    157     static char printBuf[PRINTBUF_SIZE];
    158 #endif
    159 
    160 /*******************************************************************/
    161 static void grabPartialWakeLock();
    162 void releaseWakeLock();
    163 static void wakeTimeoutCallback(void *);
    164 
    165 #ifdef RIL_SHLIB
    166 #if defined(ANDROID_MULTI_SIM)
    167 extern "C" void RIL_onUnsolicitedResponse(int unsolResponse, const void *data,
    168                                 size_t datalen, RIL_SOCKET_ID socket_id);
    169 #else
    170 extern "C" void RIL_onUnsolicitedResponse(int unsolResponse, const void *data,
    171                                 size_t datalen);
    172 #endif
    173 #endif
    174 
    175 #if defined(ANDROID_MULTI_SIM)
    176 #define RIL_UNSOL_RESPONSE(a, b, c, d) RIL_onUnsolicitedResponse((a), (b), (c), (d))
    177 #else
    178 #define RIL_UNSOL_RESPONSE(a, b, c, d) RIL_onUnsolicitedResponse((a), (b), (c))
    179 #endif
    180 
    181 static UserCallbackInfo * internalRequestTimedCallback
    182     (RIL_TimedCallback callback, void *param,
    183         const struct timeval *relativeTime);
    184 
    185 /** Index == requestNumber */
    186 static CommandInfo s_commands[] = {
    187 #include "ril_commands.h"
    188 };
    189 
    190 static UnsolResponseInfo s_unsolResponses[] = {
    191 #include "ril_unsol_commands.h"
    192 };
    193 
    194 char * RIL_getServiceName() {
    195     return ril_service_name;
    196 }
    197 
    198 extern "C"
    199 void RIL_setServiceName(const char * s) {
    200     strncpy(ril_service_name, s, MAX_SERVICE_NAME_LENGTH);
    201 }
    202 
    203 RequestInfo *
    204 addRequestToList(int serial, int slotId, int request) {
    205     RequestInfo *pRI;
    206     int ret;
    207     RIL_SOCKET_ID socket_id = (RIL_SOCKET_ID) slotId;
    208     /* Hook for current context */
    209     /* pendingRequestsMutextHook refer to &s_pendingRequestsMutex */
    210     pthread_mutex_t* pendingRequestsMutexHook = &s_pendingRequestsMutex;
    211     /* pendingRequestsHook refer to &s_pendingRequests */
    212     RequestInfo**    pendingRequestsHook = &s_pendingRequests;
    213 
    214 #if (SIM_COUNT >= 2)
    215     if (socket_id == RIL_SOCKET_2) {
    216         pendingRequestsMutexHook = &s_pendingRequestsMutex_socket2;
    217         pendingRequestsHook = &s_pendingRequests_socket2;
    218     }
    219 #if (SIM_COUNT >= 3)
    220     else if (socket_id == RIL_SOCKET_3) {
    221         pendingRequestsMutexHook = &s_pendingRequestsMutex_socket3;
    222         pendingRequestsHook = &s_pendingRequests_socket3;
    223     }
    224 #endif
    225 #if (SIM_COUNT >= 4)
    226     else if (socket_id == RIL_SOCKET_4) {
    227         pendingRequestsMutexHook = &s_pendingRequestsMutex_socket4;
    228         pendingRequestsHook = &s_pendingRequests_socket4;
    229     }
    230 #endif
    231 #endif
    232 
    233     pRI = (RequestInfo *)calloc(1, sizeof(RequestInfo));
    234     if (pRI == NULL) {
    235         RLOGE("Memory allocation failed for request %s", requestToString(request));
    236         return NULL;
    237     }
    238 
    239     pRI->token = serial;
    240     pRI->pCI = &(s_commands[request]);
    241     pRI->socket_id = socket_id;
    242 
    243     ret = pthread_mutex_lock(pendingRequestsMutexHook);
    244     assert (ret == 0);
    245 
    246     pRI->p_next = *pendingRequestsHook;
    247     *pendingRequestsHook = pRI;
    248 
    249     ret = pthread_mutex_unlock(pendingRequestsMutexHook);
    250     assert (ret == 0);
    251 
    252     return pRI;
    253 }
    254 
    255 static void triggerEvLoop() {
    256     int ret;
    257     if (!pthread_equal(pthread_self(), s_tid_dispatch)) {
    258         /* trigger event loop to wakeup. No reason to do this,
    259          * if we're in the event loop thread */
    260          do {
    261             ret = write (s_fdWakeupWrite, " ", 1);
    262          } while (ret < 0 && errno == EINTR);
    263     }
    264 }
    265 
    266 static void rilEventAddWakeup(struct ril_event *ev) {
    267     ril_event_add(ev);
    268     triggerEvLoop();
    269 }
    270 
    271 /**
    272  * A write on the wakeup fd is done just to pop us out of select()
    273  * We empty the buffer here and then ril_event will reset the timers on the
    274  * way back down
    275  */
    276 static void processWakeupCallback(int fd, short flags, void *param) {
    277     char buff[16];
    278     int ret;
    279 
    280     RLOGV("processWakeupCallback");
    281 
    282     /* empty our wakeup socket out */
    283     do {
    284         ret = read(s_fdWakeupRead, &buff, sizeof(buff));
    285     } while (ret > 0 || (ret < 0 && errno == EINTR));
    286 }
    287 
    288 static void resendLastNITZTimeData(RIL_SOCKET_ID socket_id) {
    289     if (s_lastNITZTimeData != NULL) {
    290         int responseType = (s_callbacks.version >= 13)
    291                            ? RESPONSE_UNSOLICITED_ACK_EXP
    292                            : RESPONSE_UNSOLICITED;
    293         int ret = radio::nitzTimeReceivedInd(
    294             (int)socket_id, responseType, 0,
    295             RIL_E_SUCCESS, s_lastNITZTimeData, s_lastNITZTimeDataSize);
    296         if (ret == 0) {
    297             free(s_lastNITZTimeData);
    298             s_lastNITZTimeData = NULL;
    299         }
    300     }
    301 }
    302 
    303 void onNewCommandConnect(RIL_SOCKET_ID socket_id) {
    304     // Inform we are connected and the ril version
    305     int rilVer = s_callbacks.version;
    306     RIL_UNSOL_RESPONSE(RIL_UNSOL_RIL_CONNECTED,
    307                                     &rilVer, sizeof(rilVer), socket_id);
    308 
    309     // implicit radio state changed
    310     RIL_UNSOL_RESPONSE(RIL_UNSOL_RESPONSE_RADIO_STATE_CHANGED,
    311                                     NULL, 0, socket_id);
    312 
    313     // Send last NITZ time data, in case it was missed
    314     if (s_lastNITZTimeData != NULL) {
    315         resendLastNITZTimeData(socket_id);
    316     }
    317 
    318     // Get version string
    319     if (s_callbacks.getVersion != NULL) {
    320         const char *version;
    321         version = s_callbacks.getVersion();
    322         RLOGI("RIL Daemon version: %s\n", version);
    323 
    324         property_set(PROPERTY_RIL_IMPL, version);
    325     } else {
    326         RLOGI("RIL Daemon version: unavailable\n");
    327         property_set(PROPERTY_RIL_IMPL, "unavailable");
    328     }
    329 
    330 }
    331 
    332 static void userTimerCallback (int fd, short flags, void *param) {
    333     UserCallbackInfo *p_info;
    334 
    335     p_info = (UserCallbackInfo *)param;
    336 
    337     p_info->p_callback(p_info->userParam);
    338 
    339 
    340     // FIXME generalize this...there should be a cancel mechanism
    341     if (s_last_wake_timeout_info != NULL && s_last_wake_timeout_info == p_info) {
    342         s_last_wake_timeout_info = NULL;
    343     }
    344 
    345     free(p_info);
    346 }
    347 
    348 
    349 static void *
    350 eventLoop(void *param) {
    351     int ret;
    352     int filedes[2];
    353 
    354     ril_event_init();
    355 
    356     pthread_mutex_lock(&s_startupMutex);
    357 
    358     s_started = 1;
    359     pthread_cond_broadcast(&s_startupCond);
    360 
    361     pthread_mutex_unlock(&s_startupMutex);
    362 
    363     ret = pipe(filedes);
    364 
    365     if (ret < 0) {
    366         RLOGE("Error in pipe() errno:%d", errno);
    367         return NULL;
    368     }
    369 
    370     s_fdWakeupRead = filedes[0];
    371     s_fdWakeupWrite = filedes[1];
    372 
    373     fcntl(s_fdWakeupRead, F_SETFL, O_NONBLOCK);
    374 
    375     ril_event_set (&s_wakeupfd_event, s_fdWakeupRead, true,
    376                 processWakeupCallback, NULL);
    377 
    378     rilEventAddWakeup (&s_wakeupfd_event);
    379 
    380     // Only returns on error
    381     ril_event_loop();
    382     RLOGE ("error in event_loop_base errno:%d", errno);
    383     // kill self to restart on error
    384     kill(0, SIGKILL);
    385 
    386     return NULL;
    387 }
    388 
    389 extern "C" void
    390 RIL_startEventLoop(void) {
    391     /* spin up eventLoop thread and wait for it to get started */
    392     s_started = 0;
    393     pthread_mutex_lock(&s_startupMutex);
    394 
    395     pthread_attr_t attr;
    396     pthread_attr_init(&attr);
    397     pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
    398 
    399     int result = pthread_create(&s_tid_dispatch, &attr, eventLoop, NULL);
    400     if (result != 0) {
    401         RLOGE("Failed to create dispatch thread: %s", strerror(result));
    402         goto done;
    403     }
    404 
    405     while (s_started == 0) {
    406         pthread_cond_wait(&s_startupCond, &s_startupMutex);
    407     }
    408 
    409 done:
    410     pthread_mutex_unlock(&s_startupMutex);
    411 }
    412 
    413 // Used for testing purpose only.
    414 extern "C" void RIL_setcallbacks (const RIL_RadioFunctions *callbacks) {
    415     memcpy(&s_callbacks, callbacks, sizeof (RIL_RadioFunctions));
    416 }
    417 
    418 extern "C" void
    419 RIL_register (const RIL_RadioFunctions *callbacks) {
    420     RLOGI("SIM_COUNT: %d", SIM_COUNT);
    421 
    422     if (callbacks == NULL) {
    423         RLOGE("RIL_register: RIL_RadioFunctions * null");
    424         return;
    425     }
    426     if (callbacks->version < RIL_VERSION_MIN) {
    427         RLOGE("RIL_register: version %d is to old, min version is %d",
    428              callbacks->version, RIL_VERSION_MIN);
    429         return;
    430     }
    431 
    432     RLOGE("RIL_register: RIL version %d", callbacks->version);
    433 
    434     if (s_registerCalled > 0) {
    435         RLOGE("RIL_register has been called more than once. "
    436                 "Subsequent call ignored");
    437         return;
    438     }
    439 
    440     memcpy(&s_callbacks, callbacks, sizeof (RIL_RadioFunctions));
    441 
    442     s_registerCalled = 1;
    443 
    444     RLOGI("s_registerCalled flag set, %d", s_started);
    445     // Little self-check
    446 
    447     for (int i = 0; i < (int)NUM_ELEMS(s_commands); i++) {
    448         assert(i == s_commands[i].requestNumber);
    449     }
    450 
    451     for (int i = 0; i < (int)NUM_ELEMS(s_unsolResponses); i++) {
    452         assert(i + RIL_UNSOL_RESPONSE_BASE
    453                 == s_unsolResponses[i].requestNumber);
    454     }
    455 
    456     radio::registerService(&s_callbacks, s_commands);
    457     RLOGI("RILHIDL called registerService");
    458 
    459 }
    460 
    461 extern "C" void
    462 RIL_register_socket (RIL_RadioFunctions *(*Init)(const struct RIL_Env *, int, char **),
    463         RIL_SOCKET_TYPE socketType, int argc, char **argv) {
    464 
    465     RIL_RadioFunctions* UimFuncs = NULL;
    466 
    467     if(Init) {
    468         UimFuncs = Init(&RilSapSocket::uimRilEnv, argc, argv);
    469 
    470         switch(socketType) {
    471             case RIL_SAP_SOCKET:
    472                 RilSapSocket::initSapSocket(RIL1_SERVICE_NAME, UimFuncs);
    473 
    474 #if (SIM_COUNT >= 2)
    475                 RilSapSocket::initSapSocket(RIL2_SERVICE_NAME, UimFuncs);
    476 #endif
    477 
    478 #if (SIM_COUNT >= 3)
    479                 RilSapSocket::initSapSocket(RIL3_SERVICE_NAME, UimFuncs);
    480 #endif
    481 
    482 #if (SIM_COUNT >= 4)
    483                 RilSapSocket::initSapSocket(RIL4_SERVICE_NAME, UimFuncs);
    484 #endif
    485                 break;
    486             default:;
    487         }
    488 
    489         RLOGI("RIL_register_socket: calling registerService");
    490         sap::registerService(UimFuncs);
    491     }
    492 }
    493 
    494 // Check and remove RequestInfo if its a response and not just ack sent back
    495 static int
    496 checkAndDequeueRequestInfoIfAck(struct RequestInfo *pRI, bool isAck) {
    497     int ret = 0;
    498     /* Hook for current context
    499        pendingRequestsMutextHook refer to &s_pendingRequestsMutex */
    500     pthread_mutex_t* pendingRequestsMutexHook = &s_pendingRequestsMutex;
    501     /* pendingRequestsHook refer to &s_pendingRequests */
    502     RequestInfo ** pendingRequestsHook = &s_pendingRequests;
    503 
    504     if (pRI == NULL) {
    505         return 0;
    506     }
    507 
    508 #if (SIM_COUNT >= 2)
    509     if (pRI->socket_id == RIL_SOCKET_2) {
    510         pendingRequestsMutexHook = &s_pendingRequestsMutex_socket2;
    511         pendingRequestsHook = &s_pendingRequests_socket2;
    512     }
    513 #if (SIM_COUNT >= 3)
    514         if (pRI->socket_id == RIL_SOCKET_3) {
    515             pendingRequestsMutexHook = &s_pendingRequestsMutex_socket3;
    516             pendingRequestsHook = &s_pendingRequests_socket3;
    517         }
    518 #endif
    519 #if (SIM_COUNT >= 4)
    520     if (pRI->socket_id == RIL_SOCKET_4) {
    521         pendingRequestsMutexHook = &s_pendingRequestsMutex_socket4;
    522         pendingRequestsHook = &s_pendingRequests_socket4;
    523     }
    524 #endif
    525 #endif
    526     pthread_mutex_lock(pendingRequestsMutexHook);
    527 
    528     for(RequestInfo **ppCur = pendingRequestsHook
    529         ; *ppCur != NULL
    530         ; ppCur = &((*ppCur)->p_next)
    531     ) {
    532         if (pRI == *ppCur) {
    533             ret = 1;
    534             if (isAck) { // Async ack
    535                 if (pRI->wasAckSent == 1) {
    536                     RLOGD("Ack was already sent for %s", requestToString(pRI->pCI->requestNumber));
    537                 } else {
    538                     pRI->wasAckSent = 1;
    539                 }
    540             } else {
    541                 *ppCur = (*ppCur)->p_next;
    542             }
    543             break;
    544         }
    545     }
    546 
    547     pthread_mutex_unlock(pendingRequestsMutexHook);
    548 
    549     return ret;
    550 }
    551 
    552 extern "C" void
    553 RIL_onRequestAck(RIL_Token t) {
    554     RequestInfo *pRI;
    555 
    556     RIL_SOCKET_ID socket_id = RIL_SOCKET_1;
    557 
    558     pRI = (RequestInfo *)t;
    559 
    560     if (!checkAndDequeueRequestInfoIfAck(pRI, true)) {
    561         RLOGE ("RIL_onRequestAck: invalid RIL_Token");
    562         return;
    563     }
    564 
    565     socket_id = pRI->socket_id;
    566 
    567 #if VDBG
    568     RLOGD("Request Ack, %s", rilSocketIdToString(socket_id));
    569 #endif
    570 
    571     appendPrintBuf("Ack [%04d]< %s", pRI->token, requestToString(pRI->pCI->requestNumber));
    572 
    573     if (pRI->cancelled == 0) {
    574         pthread_rwlock_t *radioServiceRwlockPtr = radio::getRadioServiceRwlock(
    575                 (int) socket_id);
    576         int rwlockRet = pthread_rwlock_rdlock(radioServiceRwlockPtr);
    577         assert(rwlockRet == 0);
    578 
    579         radio::acknowledgeRequest((int) socket_id, pRI->token);
    580 
    581         rwlockRet = pthread_rwlock_unlock(radioServiceRwlockPtr);
    582         assert(rwlockRet == 0);
    583     }
    584 }
    585 extern "C" void
    586 RIL_onRequestComplete(RIL_Token t, RIL_Errno e, void *response, size_t responselen) {
    587     RequestInfo *pRI;
    588     int ret;
    589     RIL_SOCKET_ID socket_id = RIL_SOCKET_1;
    590 
    591     pRI = (RequestInfo *)t;
    592 
    593     if (!checkAndDequeueRequestInfoIfAck(pRI, false)) {
    594         RLOGE ("RIL_onRequestComplete: invalid RIL_Token");
    595         return;
    596     }
    597 
    598     socket_id = pRI->socket_id;
    599 #if VDBG
    600     RLOGD("RequestComplete, %s", rilSocketIdToString(socket_id));
    601 #endif
    602 
    603     if (pRI->local > 0) {
    604         // Locally issued command...void only!
    605         // response does not go back up the command socket
    606         RLOGD("C[locl]< %s", requestToString(pRI->pCI->requestNumber));
    607 
    608         free(pRI);
    609         return;
    610     }
    611 
    612     appendPrintBuf("[%04d]< %s",
    613         pRI->token, requestToString(pRI->pCI->requestNumber));
    614 
    615     if (pRI->cancelled == 0) {
    616         int responseType;
    617         if (s_callbacks.version >= 13 && pRI->wasAckSent == 1) {
    618             // If ack was already sent, then this call is an asynchronous response. So we need to
    619             // send id indicating that we expect an ack from RIL.java as we acquire wakelock here.
    620             responseType = RESPONSE_SOLICITED_ACK_EXP;
    621             grabPartialWakeLock();
    622         } else {
    623             responseType = RESPONSE_SOLICITED;
    624         }
    625 
    626         // there is a response payload, no matter success or not.
    627 #if VDBG
    628         RLOGE ("Calling responseFunction() for token %d", pRI->token);
    629 #endif
    630 
    631         pthread_rwlock_t *radioServiceRwlockPtr = radio::getRadioServiceRwlock((int) socket_id);
    632         int rwlockRet = pthread_rwlock_rdlock(radioServiceRwlockPtr);
    633         assert(rwlockRet == 0);
    634 
    635         ret = pRI->pCI->responseFunction((int) socket_id,
    636                 responseType, pRI->token, e, response, responselen);
    637 
    638         rwlockRet = pthread_rwlock_unlock(radioServiceRwlockPtr);
    639         assert(rwlockRet == 0);
    640     }
    641     free(pRI);
    642 }
    643 
    644 static void
    645 grabPartialWakeLock() {
    646     if (s_callbacks.version >= 13) {
    647         int ret;
    648         ret = pthread_mutex_lock(&s_wakeLockCountMutex);
    649         assert(ret == 0);
    650         acquire_wake_lock(PARTIAL_WAKE_LOCK, ANDROID_WAKE_LOCK_NAME);
    651 
    652         UserCallbackInfo *p_info =
    653                 internalRequestTimedCallback(wakeTimeoutCallback, NULL, &TIMEVAL_WAKE_TIMEOUT);
    654         if (p_info == NULL) {
    655             release_wake_lock(ANDROID_WAKE_LOCK_NAME);
    656         } else {
    657             s_wakelock_count++;
    658             if (s_last_wake_timeout_info != NULL) {
    659                 s_last_wake_timeout_info->userParam = (void *)1;
    660             }
    661             s_last_wake_timeout_info = p_info;
    662         }
    663         ret = pthread_mutex_unlock(&s_wakeLockCountMutex);
    664         assert(ret == 0);
    665     } else {
    666         acquire_wake_lock(PARTIAL_WAKE_LOCK, ANDROID_WAKE_LOCK_NAME);
    667     }
    668 }
    669 
    670 void
    671 releaseWakeLock() {
    672     if (s_callbacks.version >= 13) {
    673         int ret;
    674         ret = pthread_mutex_lock(&s_wakeLockCountMutex);
    675         assert(ret == 0);
    676 
    677         if (s_wakelock_count > 1) {
    678             s_wakelock_count--;
    679         } else {
    680             s_wakelock_count = 0;
    681             release_wake_lock(ANDROID_WAKE_LOCK_NAME);
    682             if (s_last_wake_timeout_info != NULL) {
    683                 s_last_wake_timeout_info->userParam = (void *)1;
    684             }
    685         }
    686 
    687         ret = pthread_mutex_unlock(&s_wakeLockCountMutex);
    688         assert(ret == 0);
    689     } else {
    690         release_wake_lock(ANDROID_WAKE_LOCK_NAME);
    691     }
    692 }
    693 
    694 /**
    695  * Timer callback to put us back to sleep before the default timeout
    696  */
    697 static void
    698 wakeTimeoutCallback (void *param) {
    699     // We're using "param != NULL" as a cancellation mechanism
    700     if (s_callbacks.version >= 13) {
    701         if (param == NULL) {
    702             int ret;
    703             ret = pthread_mutex_lock(&s_wakeLockCountMutex);
    704             assert(ret == 0);
    705             s_wakelock_count = 0;
    706             release_wake_lock(ANDROID_WAKE_LOCK_NAME);
    707             ret = pthread_mutex_unlock(&s_wakeLockCountMutex);
    708             assert(ret == 0);
    709         }
    710     } else {
    711         if (param == NULL) {
    712             releaseWakeLock();
    713         }
    714     }
    715 }
    716 
    717 #if defined(ANDROID_MULTI_SIM)
    718 extern "C"
    719 void RIL_onUnsolicitedResponse(int unsolResponse, const void *data,
    720                                 size_t datalen, RIL_SOCKET_ID socket_id)
    721 #else
    722 extern "C"
    723 void RIL_onUnsolicitedResponse(int unsolResponse, const void *data,
    724                                 size_t datalen)
    725 #endif
    726 {
    727     int unsolResponseIndex;
    728     int ret;
    729     bool shouldScheduleTimeout = false;
    730     RIL_SOCKET_ID soc_id = RIL_SOCKET_1;
    731 
    732 #if defined(ANDROID_MULTI_SIM)
    733     soc_id = socket_id;
    734 #endif
    735 
    736 
    737     if (s_registerCalled == 0) {
    738         // Ignore RIL_onUnsolicitedResponse before RIL_register
    739         RLOGW("RIL_onUnsolicitedResponse called before RIL_register");
    740         return;
    741     }
    742 
    743     unsolResponseIndex = unsolResponse - RIL_UNSOL_RESPONSE_BASE;
    744 
    745     if ((unsolResponseIndex < 0)
    746         || (unsolResponseIndex >= (int32_t)NUM_ELEMS(s_unsolResponses))) {
    747         RLOGE("unsupported unsolicited response code %d", unsolResponse);
    748         return;
    749     }
    750 
    751     // Grab a wake lock if needed for this reponse,
    752     // as we exit we'll either release it immediately
    753     // or set a timer to release it later.
    754     switch (s_unsolResponses[unsolResponseIndex].wakeType) {
    755         case WAKE_PARTIAL:
    756             grabPartialWakeLock();
    757             shouldScheduleTimeout = true;
    758         break;
    759 
    760         case DONT_WAKE:
    761         default:
    762             // No wake lock is grabed so don't set timeout
    763             shouldScheduleTimeout = false;
    764             break;
    765     }
    766 
    767     appendPrintBuf("[UNSL]< %s", requestToString(unsolResponse));
    768 
    769     int responseType;
    770     if (s_callbacks.version >= 13
    771                 && s_unsolResponses[unsolResponseIndex].wakeType == WAKE_PARTIAL) {
    772         responseType = RESPONSE_UNSOLICITED_ACK_EXP;
    773     } else {
    774         responseType = RESPONSE_UNSOLICITED;
    775     }
    776 
    777     pthread_rwlock_t *radioServiceRwlockPtr = radio::getRadioServiceRwlock((int) soc_id);
    778     int rwlockRet = pthread_rwlock_rdlock(radioServiceRwlockPtr);
    779     assert(rwlockRet == 0);
    780 
    781     ret = s_unsolResponses[unsolResponseIndex].responseFunction(
    782             (int) soc_id, responseType, 0, RIL_E_SUCCESS, const_cast<void*>(data),
    783             datalen);
    784 
    785     rwlockRet = pthread_rwlock_unlock(radioServiceRwlockPtr);
    786     assert(rwlockRet == 0);
    787 
    788     if (s_callbacks.version < 13) {
    789         if (shouldScheduleTimeout) {
    790             UserCallbackInfo *p_info = internalRequestTimedCallback(wakeTimeoutCallback, NULL,
    791                     &TIMEVAL_WAKE_TIMEOUT);
    792 
    793             if (p_info == NULL) {
    794                 goto error_exit;
    795             } else {
    796                 // Cancel the previous request
    797                 if (s_last_wake_timeout_info != NULL) {
    798                     s_last_wake_timeout_info->userParam = (void *)1;
    799                 }
    800                 s_last_wake_timeout_info = p_info;
    801             }
    802         }
    803     }
    804 
    805 #if VDBG
    806     RLOGI("%s UNSOLICITED: %s length:%zu", rilSocketIdToString(soc_id),
    807             requestToString(unsolResponse), datalen);
    808 #endif
    809 
    810     if (ret != 0 && unsolResponse == RIL_UNSOL_NITZ_TIME_RECEIVED) {
    811         // Unfortunately, NITZ time is not poll/update like everything
    812         // else in the system. So, if the upstream client isn't connected,
    813         // keep a copy of the last NITZ response (with receive time noted
    814         // above) around so we can deliver it when it is connected
    815 
    816         if (s_lastNITZTimeData != NULL) {
    817             free(s_lastNITZTimeData);
    818             s_lastNITZTimeData = NULL;
    819         }
    820 
    821         s_lastNITZTimeData = calloc(datalen, 1);
    822         if (s_lastNITZTimeData == NULL) {
    823             RLOGE("Memory allocation failed in RIL_onUnsolicitedResponse");
    824             goto error_exit;
    825         }
    826         s_lastNITZTimeDataSize = datalen;
    827         memcpy(s_lastNITZTimeData, data, datalen);
    828     }
    829 
    830     // Normal exit
    831     return;
    832 
    833 error_exit:
    834     if (shouldScheduleTimeout) {
    835         releaseWakeLock();
    836     }
    837 }
    838 
    839 /** FIXME generalize this if you track UserCAllbackInfo, clear it
    840     when the callback occurs
    841 */
    842 static UserCallbackInfo *
    843 internalRequestTimedCallback (RIL_TimedCallback callback, void *param,
    844                                 const struct timeval *relativeTime)
    845 {
    846     struct timeval myRelativeTime;
    847     UserCallbackInfo *p_info;
    848 
    849     p_info = (UserCallbackInfo *) calloc(1, sizeof(UserCallbackInfo));
    850     if (p_info == NULL) {
    851         RLOGE("Memory allocation failed in internalRequestTimedCallback");
    852         return p_info;
    853 
    854     }
    855 
    856     p_info->p_callback = callback;
    857     p_info->userParam = param;
    858 
    859     if (relativeTime == NULL) {
    860         /* treat null parameter as a 0 relative time */
    861         memset (&myRelativeTime, 0, sizeof(myRelativeTime));
    862     } else {
    863         /* FIXME I think event_add's tv param is really const anyway */
    864         memcpy (&myRelativeTime, relativeTime, sizeof(myRelativeTime));
    865     }
    866 
    867     ril_event_set(&(p_info->event), -1, false, userTimerCallback, p_info);
    868 
    869     ril_timer_add(&(p_info->event), &myRelativeTime);
    870 
    871     triggerEvLoop();
    872     return p_info;
    873 }
    874 
    875 
    876 extern "C" void
    877 RIL_requestTimedCallback (RIL_TimedCallback callback, void *param,
    878                                 const struct timeval *relativeTime) {
    879     internalRequestTimedCallback (callback, param, relativeTime);
    880 }
    881 
    882 const char *
    883 failCauseToString(RIL_Errno e) {
    884     switch(e) {
    885         case RIL_E_SUCCESS: return "E_SUCCESS";
    886         case RIL_E_RADIO_NOT_AVAILABLE: return "E_RADIO_NOT_AVAILABLE";
    887         case RIL_E_GENERIC_FAILURE: return "E_GENERIC_FAILURE";
    888         case RIL_E_PASSWORD_INCORRECT: return "E_PASSWORD_INCORRECT";
    889         case RIL_E_SIM_PIN2: return "E_SIM_PIN2";
    890         case RIL_E_SIM_PUK2: return "E_SIM_PUK2";
    891         case RIL_E_REQUEST_NOT_SUPPORTED: return "E_REQUEST_NOT_SUPPORTED";
    892         case RIL_E_CANCELLED: return "E_CANCELLED";
    893         case RIL_E_OP_NOT_ALLOWED_DURING_VOICE_CALL: return "E_OP_NOT_ALLOWED_DURING_VOICE_CALL";
    894         case RIL_E_OP_NOT_ALLOWED_BEFORE_REG_TO_NW: return "E_OP_NOT_ALLOWED_BEFORE_REG_TO_NW";
    895         case RIL_E_SMS_SEND_FAIL_RETRY: return "E_SMS_SEND_FAIL_RETRY";
    896         case RIL_E_SIM_ABSENT:return "E_SIM_ABSENT";
    897         case RIL_E_ILLEGAL_SIM_OR_ME:return "E_ILLEGAL_SIM_OR_ME";
    898 #ifdef FEATURE_MULTIMODE_ANDROID
    899         case RIL_E_SUBSCRIPTION_NOT_AVAILABLE:return "E_SUBSCRIPTION_NOT_AVAILABLE";
    900         case RIL_E_MODE_NOT_SUPPORTED:return "E_MODE_NOT_SUPPORTED";
    901 #endif
    902         case RIL_E_FDN_CHECK_FAILURE: return "E_FDN_CHECK_FAILURE";
    903         case RIL_E_MISSING_RESOURCE: return "E_MISSING_RESOURCE";
    904         case RIL_E_NO_SUCH_ELEMENT: return "E_NO_SUCH_ELEMENT";
    905         case RIL_E_DIAL_MODIFIED_TO_USSD: return "E_DIAL_MODIFIED_TO_USSD";
    906         case RIL_E_DIAL_MODIFIED_TO_SS: return "E_DIAL_MODIFIED_TO_SS";
    907         case RIL_E_DIAL_MODIFIED_TO_DIAL: return "E_DIAL_MODIFIED_TO_DIAL";
    908         case RIL_E_USSD_MODIFIED_TO_DIAL: return "E_USSD_MODIFIED_TO_DIAL";
    909         case RIL_E_USSD_MODIFIED_TO_SS: return "E_USSD_MODIFIED_TO_SS";
    910         case RIL_E_USSD_MODIFIED_TO_USSD: return "E_USSD_MODIFIED_TO_USSD";
    911         case RIL_E_SS_MODIFIED_TO_DIAL: return "E_SS_MODIFIED_TO_DIAL";
    912         case RIL_E_SS_MODIFIED_TO_USSD: return "E_SS_MODIFIED_TO_USSD";
    913         case RIL_E_SUBSCRIPTION_NOT_SUPPORTED: return "E_SUBSCRIPTION_NOT_SUPPORTED";
    914         case RIL_E_SS_MODIFIED_TO_SS: return "E_SS_MODIFIED_TO_SS";
    915         case RIL_E_LCE_NOT_SUPPORTED: return "E_LCE_NOT_SUPPORTED";
    916         case RIL_E_NO_MEMORY: return "E_NO_MEMORY";
    917         case RIL_E_INTERNAL_ERR: return "E_INTERNAL_ERR";
    918         case RIL_E_SYSTEM_ERR: return "E_SYSTEM_ERR";
    919         case RIL_E_MODEM_ERR: return "E_MODEM_ERR";
    920         case RIL_E_INVALID_STATE: return "E_INVALID_STATE";
    921         case RIL_E_NO_RESOURCES: return "E_NO_RESOURCES";
    922         case RIL_E_SIM_ERR: return "E_SIM_ERR";
    923         case RIL_E_INVALID_ARGUMENTS: return "E_INVALID_ARGUMENTS";
    924         case RIL_E_INVALID_SIM_STATE: return "E_INVALID_SIM_STATE";
    925         case RIL_E_INVALID_MODEM_STATE: return "E_INVALID_MODEM_STATE";
    926         case RIL_E_INVALID_CALL_ID: return "E_INVALID_CALL_ID";
    927         case RIL_E_NO_SMS_TO_ACK: return "E_NO_SMS_TO_ACK";
    928         case RIL_E_NETWORK_ERR: return "E_NETWORK_ERR";
    929         case RIL_E_REQUEST_RATE_LIMITED: return "E_REQUEST_RATE_LIMITED";
    930         case RIL_E_SIM_BUSY: return "E_SIM_BUSY";
    931         case RIL_E_SIM_FULL: return "E_SIM_FULL";
    932         case RIL_E_NETWORK_REJECT: return "E_NETWORK_REJECT";
    933         case RIL_E_OPERATION_NOT_ALLOWED: return "E_OPERATION_NOT_ALLOWED";
    934         case RIL_E_EMPTY_RECORD: return "E_EMPTY_RECORD";
    935         case RIL_E_INVALID_SMS_FORMAT: return "E_INVALID_SMS_FORMAT";
    936         case RIL_E_ENCODING_ERR: return "E_ENCODING_ERR";
    937         case RIL_E_INVALID_SMSC_ADDRESS: return "E_INVALID_SMSC_ADDRESS";
    938         case RIL_E_NO_SUCH_ENTRY: return "E_NO_SUCH_ENTRY";
    939         case RIL_E_NETWORK_NOT_READY: return "E_NETWORK_NOT_READY";
    940         case RIL_E_NOT_PROVISIONED: return "E_NOT_PROVISIONED";
    941         case RIL_E_NO_SUBSCRIPTION: return "E_NO_SUBSCRIPTION";
    942         case RIL_E_NO_NETWORK_FOUND: return "E_NO_NETWORK_FOUND";
    943         case RIL_E_DEVICE_IN_USE: return "E_DEVICE_IN_USE";
    944         case RIL_E_ABORTED: return "E_ABORTED";
    945         case RIL_E_INVALID_RESPONSE: return "INVALID_RESPONSE";
    946         case RIL_E_OEM_ERROR_1: return "E_OEM_ERROR_1";
    947         case RIL_E_OEM_ERROR_2: return "E_OEM_ERROR_2";
    948         case RIL_E_OEM_ERROR_3: return "E_OEM_ERROR_3";
    949         case RIL_E_OEM_ERROR_4: return "E_OEM_ERROR_4";
    950         case RIL_E_OEM_ERROR_5: return "E_OEM_ERROR_5";
    951         case RIL_E_OEM_ERROR_6: return "E_OEM_ERROR_6";
    952         case RIL_E_OEM_ERROR_7: return "E_OEM_ERROR_7";
    953         case RIL_E_OEM_ERROR_8: return "E_OEM_ERROR_8";
    954         case RIL_E_OEM_ERROR_9: return "E_OEM_ERROR_9";
    955         case RIL_E_OEM_ERROR_10: return "E_OEM_ERROR_10";
    956         case RIL_E_OEM_ERROR_11: return "E_OEM_ERROR_11";
    957         case RIL_E_OEM_ERROR_12: return "E_OEM_ERROR_12";
    958         case RIL_E_OEM_ERROR_13: return "E_OEM_ERROR_13";
    959         case RIL_E_OEM_ERROR_14: return "E_OEM_ERROR_14";
    960         case RIL_E_OEM_ERROR_15: return "E_OEM_ERROR_15";
    961         case RIL_E_OEM_ERROR_16: return "E_OEM_ERROR_16";
    962         case RIL_E_OEM_ERROR_17: return "E_OEM_ERROR_17";
    963         case RIL_E_OEM_ERROR_18: return "E_OEM_ERROR_18";
    964         case RIL_E_OEM_ERROR_19: return "E_OEM_ERROR_19";
    965         case RIL_E_OEM_ERROR_20: return "E_OEM_ERROR_20";
    966         case RIL_E_OEM_ERROR_21: return "E_OEM_ERROR_21";
    967         case RIL_E_OEM_ERROR_22: return "E_OEM_ERROR_22";
    968         case RIL_E_OEM_ERROR_23: return "E_OEM_ERROR_23";
    969         case RIL_E_OEM_ERROR_24: return "E_OEM_ERROR_24";
    970         case RIL_E_OEM_ERROR_25: return "E_OEM_ERROR_25";
    971         default: return "<unknown error>";
    972     }
    973 }
    974 
    975 const char *
    976 radioStateToString(RIL_RadioState s) {
    977     switch(s) {
    978         case RADIO_STATE_OFF: return "RADIO_OFF";
    979         case RADIO_STATE_UNAVAILABLE: return "RADIO_UNAVAILABLE";
    980         case RADIO_STATE_ON:return"RADIO_ON";
    981         default: return "<unknown state>";
    982     }
    983 }
    984 
    985 const char *
    986 callStateToString(RIL_CallState s) {
    987     switch(s) {
    988         case RIL_CALL_ACTIVE : return "ACTIVE";
    989         case RIL_CALL_HOLDING: return "HOLDING";
    990         case RIL_CALL_DIALING: return "DIALING";
    991         case RIL_CALL_ALERTING: return "ALERTING";
    992         case RIL_CALL_INCOMING: return "INCOMING";
    993         case RIL_CALL_WAITING: return "WAITING";
    994         default: return "<unknown state>";
    995     }
    996 }
    997 
    998 const char *
    999 requestToString(int request) {
   1000 /*
   1001  cat libs/telephony/ril_commands.h \
   1002  | egrep "^ *{RIL_" \
   1003  | sed -re 's/\{RIL_([^,]+),[^,]+,([^}]+).+/case RIL_\1: return "\1";/'
   1004 
   1005 
   1006  cat libs/telephony/ril_unsol_commands.h \
   1007  | egrep "^ *{RIL_" \
   1008  | sed -re 's/\{RIL_([^,]+),([^}]+).+/case RIL_\1: return "\1";/'
   1009 
   1010 */
   1011     switch(request) {
   1012         case RIL_REQUEST_GET_SIM_STATUS: return "GET_SIM_STATUS";
   1013         case RIL_REQUEST_ENTER_SIM_PIN: return "ENTER_SIM_PIN";
   1014         case RIL_REQUEST_ENTER_SIM_PUK: return "ENTER_SIM_PUK";
   1015         case RIL_REQUEST_ENTER_SIM_PIN2: return "ENTER_SIM_PIN2";
   1016         case RIL_REQUEST_ENTER_SIM_PUK2: return "ENTER_SIM_PUK2";
   1017         case RIL_REQUEST_CHANGE_SIM_PIN: return "CHANGE_SIM_PIN";
   1018         case RIL_REQUEST_CHANGE_SIM_PIN2: return "CHANGE_SIM_PIN2";
   1019         case RIL_REQUEST_ENTER_NETWORK_DEPERSONALIZATION: return "ENTER_NETWORK_DEPERSONALIZATION";
   1020         case RIL_REQUEST_GET_CURRENT_CALLS: return "GET_CURRENT_CALLS";
   1021         case RIL_REQUEST_DIAL: return "DIAL";
   1022         case RIL_REQUEST_GET_IMSI: return "GET_IMSI";
   1023         case RIL_REQUEST_HANGUP: return "HANGUP";
   1024         case RIL_REQUEST_HANGUP_WAITING_OR_BACKGROUND: return "HANGUP_WAITING_OR_BACKGROUND";
   1025         case RIL_REQUEST_HANGUP_FOREGROUND_RESUME_BACKGROUND: return "HANGUP_FOREGROUND_RESUME_BACKGROUND";
   1026         case RIL_REQUEST_SWITCH_WAITING_OR_HOLDING_AND_ACTIVE: return "SWITCH_WAITING_OR_HOLDING_AND_ACTIVE";
   1027         case RIL_REQUEST_CONFERENCE: return "CONFERENCE";
   1028         case RIL_REQUEST_UDUB: return "UDUB";
   1029         case RIL_REQUEST_LAST_CALL_FAIL_CAUSE: return "LAST_CALL_FAIL_CAUSE";
   1030         case RIL_REQUEST_SIGNAL_STRENGTH: return "SIGNAL_STRENGTH";
   1031         case RIL_REQUEST_VOICE_REGISTRATION_STATE: return "VOICE_REGISTRATION_STATE";
   1032         case RIL_REQUEST_DATA_REGISTRATION_STATE: return "DATA_REGISTRATION_STATE";
   1033         case RIL_REQUEST_OPERATOR: return "OPERATOR";
   1034         case RIL_REQUEST_RADIO_POWER: return "RADIO_POWER";
   1035         case RIL_REQUEST_DTMF: return "DTMF";
   1036         case RIL_REQUEST_SEND_SMS: return "SEND_SMS";
   1037         case RIL_REQUEST_SEND_SMS_EXPECT_MORE: return "SEND_SMS_EXPECT_MORE";
   1038         case RIL_REQUEST_SETUP_DATA_CALL: return "SETUP_DATA_CALL";
   1039         case RIL_REQUEST_SIM_IO: return "SIM_IO";
   1040         case RIL_REQUEST_SEND_USSD: return "SEND_USSD";
   1041         case RIL_REQUEST_CANCEL_USSD: return "CANCEL_USSD";
   1042         case RIL_REQUEST_GET_CLIR: return "GET_CLIR";
   1043         case RIL_REQUEST_SET_CLIR: return "SET_CLIR";
   1044         case RIL_REQUEST_QUERY_CALL_FORWARD_STATUS: return "QUERY_CALL_FORWARD_STATUS";
   1045         case RIL_REQUEST_SET_CALL_FORWARD: return "SET_CALL_FORWARD";
   1046         case RIL_REQUEST_QUERY_CALL_WAITING: return "QUERY_CALL_WAITING";
   1047         case RIL_REQUEST_SET_CALL_WAITING: return "SET_CALL_WAITING";
   1048         case RIL_REQUEST_SMS_ACKNOWLEDGE: return "SMS_ACKNOWLEDGE";
   1049         case RIL_REQUEST_GET_IMEI: return "GET_IMEI";
   1050         case RIL_REQUEST_GET_IMEISV: return "GET_IMEISV";
   1051         case RIL_REQUEST_ANSWER: return "ANSWER";
   1052         case RIL_REQUEST_DEACTIVATE_DATA_CALL: return "DEACTIVATE_DATA_CALL";
   1053         case RIL_REQUEST_QUERY_FACILITY_LOCK: return "QUERY_FACILITY_LOCK";
   1054         case RIL_REQUEST_SET_FACILITY_LOCK: return "SET_FACILITY_LOCK";
   1055         case RIL_REQUEST_CHANGE_BARRING_PASSWORD: return "CHANGE_BARRING_PASSWORD";
   1056         case RIL_REQUEST_QUERY_NETWORK_SELECTION_MODE: return "QUERY_NETWORK_SELECTION_MODE";
   1057         case RIL_REQUEST_SET_NETWORK_SELECTION_AUTOMATIC: return "SET_NETWORK_SELECTION_AUTOMATIC";
   1058         case RIL_REQUEST_SET_NETWORK_SELECTION_MANUAL: return "SET_NETWORK_SELECTION_MANUAL";
   1059         case RIL_REQUEST_QUERY_AVAILABLE_NETWORKS: return "QUERY_AVAILABLE_NETWORKS";
   1060         case RIL_REQUEST_DTMF_START: return "DTMF_START";
   1061         case RIL_REQUEST_DTMF_STOP: return "DTMF_STOP";
   1062         case RIL_REQUEST_BASEBAND_VERSION: return "BASEBAND_VERSION";
   1063         case RIL_REQUEST_SEPARATE_CONNECTION: return "SEPARATE_CONNECTION";
   1064         case RIL_REQUEST_SET_MUTE: return "SET_MUTE";
   1065         case RIL_REQUEST_GET_MUTE: return "GET_MUTE";
   1066         case RIL_REQUEST_QUERY_CLIP: return "QUERY_CLIP";
   1067         case RIL_REQUEST_LAST_DATA_CALL_FAIL_CAUSE: return "LAST_DATA_CALL_FAIL_CAUSE";
   1068         case RIL_REQUEST_DATA_CALL_LIST: return "DATA_CALL_LIST";
   1069         case RIL_REQUEST_RESET_RADIO: return "RESET_RADIO";
   1070         case RIL_REQUEST_OEM_HOOK_RAW: return "OEM_HOOK_RAW";
   1071         case RIL_REQUEST_OEM_HOOK_STRINGS: return "OEM_HOOK_STRINGS";
   1072         case RIL_REQUEST_SCREEN_STATE: return "SCREEN_STATE";
   1073         case RIL_REQUEST_SET_SUPP_SVC_NOTIFICATION: return "SET_SUPP_SVC_NOTIFICATION";
   1074         case RIL_REQUEST_WRITE_SMS_TO_SIM: return "WRITE_SMS_TO_SIM";
   1075         case RIL_REQUEST_DELETE_SMS_ON_SIM: return "DELETE_SMS_ON_SIM";
   1076         case RIL_REQUEST_SET_BAND_MODE: return "SET_BAND_MODE";
   1077         case RIL_REQUEST_QUERY_AVAILABLE_BAND_MODE: return "QUERY_AVAILABLE_BAND_MODE";
   1078         case RIL_REQUEST_STK_GET_PROFILE: return "STK_GET_PROFILE";
   1079         case RIL_REQUEST_STK_SET_PROFILE: return "STK_SET_PROFILE";
   1080         case RIL_REQUEST_STK_SEND_ENVELOPE_COMMAND: return "STK_SEND_ENVELOPE_COMMAND";
   1081         case RIL_REQUEST_STK_SEND_TERMINAL_RESPONSE: return "STK_SEND_TERMINAL_RESPONSE";
   1082         case RIL_REQUEST_STK_HANDLE_CALL_SETUP_REQUESTED_FROM_SIM: return "STK_HANDLE_CALL_SETUP_REQUESTED_FROM_SIM";
   1083         case RIL_REQUEST_EXPLICIT_CALL_TRANSFER: return "EXPLICIT_CALL_TRANSFER";
   1084         case RIL_REQUEST_SET_PREFERRED_NETWORK_TYPE: return "SET_PREFERRED_NETWORK_TYPE";
   1085         case RIL_REQUEST_GET_PREFERRED_NETWORK_TYPE: return "GET_PREFERRED_NETWORK_TYPE";
   1086         case RIL_REQUEST_GET_NEIGHBORING_CELL_IDS: return "GET_NEIGHBORING_CELL_IDS";
   1087         case RIL_REQUEST_SET_LOCATION_UPDATES: return "SET_LOCATION_UPDATES";
   1088         case RIL_REQUEST_CDMA_SET_SUBSCRIPTION_SOURCE: return "CDMA_SET_SUBSCRIPTION_SOURCE";
   1089         case RIL_REQUEST_CDMA_SET_ROAMING_PREFERENCE: return "CDMA_SET_ROAMING_PREFERENCE";
   1090         case RIL_REQUEST_CDMA_QUERY_ROAMING_PREFERENCE: return "CDMA_QUERY_ROAMING_PREFERENCE";
   1091         case RIL_REQUEST_SET_TTY_MODE: return "SET_TTY_MODE";
   1092         case RIL_REQUEST_QUERY_TTY_MODE: return "QUERY_TTY_MODE";
   1093         case RIL_REQUEST_CDMA_SET_PREFERRED_VOICE_PRIVACY_MODE: return "CDMA_SET_PREFERRED_VOICE_PRIVACY_MODE";
   1094         case RIL_REQUEST_CDMA_QUERY_PREFERRED_VOICE_PRIVACY_MODE: return "CDMA_QUERY_PREFERRED_VOICE_PRIVACY_MODE";
   1095         case RIL_REQUEST_CDMA_FLASH: return "CDMA_FLASH";
   1096         case RIL_REQUEST_CDMA_BURST_DTMF: return "CDMA_BURST_DTMF";
   1097         case RIL_REQUEST_CDMA_VALIDATE_AND_WRITE_AKEY: return "CDMA_VALIDATE_AND_WRITE_AKEY";
   1098         case RIL_REQUEST_CDMA_SEND_SMS: return "CDMA_SEND_SMS";
   1099         case RIL_REQUEST_CDMA_SMS_ACKNOWLEDGE: return "CDMA_SMS_ACKNOWLEDGE";
   1100         case RIL_REQUEST_GSM_GET_BROADCAST_SMS_CONFIG: return "GSM_GET_BROADCAST_SMS_CONFIG";
   1101         case RIL_REQUEST_GSM_SET_BROADCAST_SMS_CONFIG: return "GSM_SET_BROADCAST_SMS_CONFIG";
   1102         case RIL_REQUEST_GSM_SMS_BROADCAST_ACTIVATION: return "GSM_SMS_BROADCAST_ACTIVATION";
   1103         case RIL_REQUEST_CDMA_GET_BROADCAST_SMS_CONFIG: return "CDMA_GET_BROADCAST_SMS_CONFIG";
   1104         case RIL_REQUEST_CDMA_SET_BROADCAST_SMS_CONFIG: return "CDMA_SET_BROADCAST_SMS_CONFIG";
   1105         case RIL_REQUEST_CDMA_SMS_BROADCAST_ACTIVATION: return "CDMA_SMS_BROADCAST_ACTIVATION";
   1106         case RIL_REQUEST_CDMA_SUBSCRIPTION: return "CDMA_SUBSCRIPTION";
   1107         case RIL_REQUEST_CDMA_WRITE_SMS_TO_RUIM: return "CDMA_WRITE_SMS_TO_RUIM";
   1108         case RIL_REQUEST_CDMA_DELETE_SMS_ON_RUIM: return "CDMA_DELETE_SMS_ON_RUIM";
   1109         case RIL_REQUEST_DEVICE_IDENTITY: return "DEVICE_IDENTITY";
   1110         case RIL_REQUEST_EXIT_EMERGENCY_CALLBACK_MODE: return "EXIT_EMERGENCY_CALLBACK_MODE";
   1111         case RIL_REQUEST_GET_SMSC_ADDRESS: return "GET_SMSC_ADDRESS";
   1112         case RIL_REQUEST_SET_SMSC_ADDRESS: return "SET_SMSC_ADDRESS";
   1113         case RIL_REQUEST_REPORT_SMS_MEMORY_STATUS: return "REPORT_SMS_MEMORY_STATUS";
   1114         case RIL_REQUEST_REPORT_STK_SERVICE_IS_RUNNING: return "REPORT_STK_SERVICE_IS_RUNNING";
   1115         case RIL_REQUEST_CDMA_GET_SUBSCRIPTION_SOURCE: return "CDMA_GET_SUBSCRIPTION_SOURCE";
   1116         case RIL_REQUEST_ISIM_AUTHENTICATION: return "ISIM_AUTHENTICATION";
   1117         case RIL_REQUEST_ACKNOWLEDGE_INCOMING_GSM_SMS_WITH_PDU: return "ACKNOWLEDGE_INCOMING_GSM_SMS_WITH_PDU";
   1118         case RIL_REQUEST_STK_SEND_ENVELOPE_WITH_STATUS: return "STK_SEND_ENVELOPE_WITH_STATUS";
   1119         case RIL_REQUEST_VOICE_RADIO_TECH: return "VOICE_RADIO_TECH";
   1120         case RIL_REQUEST_GET_CELL_INFO_LIST: return "GET_CELL_INFO_LIST";
   1121         case RIL_REQUEST_SET_UNSOL_CELL_INFO_LIST_RATE: return "SET_UNSOL_CELL_INFO_LIST_RATE";
   1122         case RIL_REQUEST_SET_INITIAL_ATTACH_APN: return "SET_INITIAL_ATTACH_APN";
   1123         case RIL_REQUEST_IMS_REGISTRATION_STATE: return "IMS_REGISTRATION_STATE";
   1124         case RIL_REQUEST_IMS_SEND_SMS: return "IMS_SEND_SMS";
   1125         case RIL_REQUEST_SIM_TRANSMIT_APDU_BASIC: return "SIM_TRANSMIT_APDU_BASIC";
   1126         case RIL_REQUEST_SIM_OPEN_CHANNEL: return "SIM_OPEN_CHANNEL";
   1127         case RIL_REQUEST_SIM_CLOSE_CHANNEL: return "SIM_CLOSE_CHANNEL";
   1128         case RIL_REQUEST_SIM_TRANSMIT_APDU_CHANNEL: return "SIM_TRANSMIT_APDU_CHANNEL";
   1129         case RIL_REQUEST_NV_READ_ITEM: return "NV_READ_ITEM";
   1130         case RIL_REQUEST_NV_WRITE_ITEM: return "NV_WRITE_ITEM";
   1131         case RIL_REQUEST_NV_WRITE_CDMA_PRL: return "NV_WRITE_CDMA_PRL";
   1132         case RIL_REQUEST_NV_RESET_CONFIG: return "NV_RESET_CONFIG";
   1133         case RIL_REQUEST_SET_UICC_SUBSCRIPTION: return "SET_UICC_SUBSCRIPTION";
   1134         case RIL_REQUEST_ALLOW_DATA: return "ALLOW_DATA";
   1135         case RIL_REQUEST_GET_HARDWARE_CONFIG: return "GET_HARDWARE_CONFIG";
   1136         case RIL_REQUEST_SIM_AUTHENTICATION: return "SIM_AUTHENTICATION";
   1137         case RIL_REQUEST_GET_DC_RT_INFO: return "GET_DC_RT_INFO";
   1138         case RIL_REQUEST_SET_DC_RT_INFO_RATE: return "SET_DC_RT_INFO_RATE";
   1139         case RIL_REQUEST_SET_DATA_PROFILE: return "SET_DATA_PROFILE";
   1140         case RIL_REQUEST_SHUTDOWN: return "SHUTDOWN";
   1141         case RIL_REQUEST_GET_RADIO_CAPABILITY: return "GET_RADIO_CAPABILITY";
   1142         case RIL_REQUEST_SET_RADIO_CAPABILITY: return "SET_RADIO_CAPABILITY";
   1143         case RIL_REQUEST_START_LCE: return "START_LCE";
   1144         case RIL_REQUEST_STOP_LCE: return "STOP_LCE";
   1145         case RIL_REQUEST_PULL_LCEDATA: return "PULL_LCEDATA";
   1146         case RIL_REQUEST_GET_ACTIVITY_INFO: return "GET_ACTIVITY_INFO";
   1147         case RIL_REQUEST_SET_CARRIER_RESTRICTIONS: return "SET_CARRIER_RESTRICTIONS";
   1148         case RIL_REQUEST_GET_CARRIER_RESTRICTIONS: return "GET_CARRIER_RESTRICTIONS";
   1149         case RIL_REQUEST_SET_CARRIER_INFO_IMSI_ENCRYPTION: return "SET_CARRIER_INFO_IMSI_ENCRYPTION";
   1150         case RIL_RESPONSE_ACKNOWLEDGEMENT: return "RESPONSE_ACKNOWLEDGEMENT";
   1151         case RIL_UNSOL_RESPONSE_RADIO_STATE_CHANGED: return "UNSOL_RESPONSE_RADIO_STATE_CHANGED";
   1152         case RIL_UNSOL_RESPONSE_CALL_STATE_CHANGED: return "UNSOL_RESPONSE_CALL_STATE_CHANGED";
   1153         case RIL_UNSOL_RESPONSE_VOICE_NETWORK_STATE_CHANGED: return "UNSOL_RESPONSE_VOICE_NETWORK_STATE_CHANGED";
   1154         case RIL_UNSOL_RESPONSE_NEW_SMS: return "UNSOL_RESPONSE_NEW_SMS";
   1155         case RIL_UNSOL_RESPONSE_NEW_SMS_STATUS_REPORT: return "UNSOL_RESPONSE_NEW_SMS_STATUS_REPORT";
   1156         case RIL_UNSOL_RESPONSE_NEW_SMS_ON_SIM: return "UNSOL_RESPONSE_NEW_SMS_ON_SIM";
   1157         case RIL_UNSOL_ON_USSD: return "UNSOL_ON_USSD";
   1158         case RIL_UNSOL_ON_USSD_REQUEST: return "UNSOL_ON_USSD_REQUEST";
   1159         case RIL_UNSOL_NITZ_TIME_RECEIVED: return "UNSOL_NITZ_TIME_RECEIVED";
   1160         case RIL_UNSOL_SIGNAL_STRENGTH: return "UNSOL_SIGNAL_STRENGTH";
   1161         case RIL_UNSOL_DATA_CALL_LIST_CHANGED: return "UNSOL_DATA_CALL_LIST_CHANGED";
   1162         case RIL_UNSOL_SUPP_SVC_NOTIFICATION: return "UNSOL_SUPP_SVC_NOTIFICATION";
   1163         case RIL_UNSOL_STK_SESSION_END: return "UNSOL_STK_SESSION_END";
   1164         case RIL_UNSOL_STK_PROACTIVE_COMMAND: return "UNSOL_STK_PROACTIVE_COMMAND";
   1165         case RIL_UNSOL_STK_EVENT_NOTIFY: return "UNSOL_STK_EVENT_NOTIFY";
   1166         case RIL_UNSOL_STK_CALL_SETUP: return "UNSOL_STK_CALL_SETUP";
   1167         case RIL_UNSOL_SIM_SMS_STORAGE_FULL: return "UNSOL_SIM_SMS_STORAGE_FULL";
   1168         case RIL_UNSOL_SIM_REFRESH: return "UNSOL_SIM_REFRESH";
   1169         case RIL_UNSOL_CALL_RING: return "UNSOL_CALL_RING";
   1170         case RIL_UNSOL_RESPONSE_SIM_STATUS_CHANGED: return "UNSOL_RESPONSE_SIM_STATUS_CHANGED";
   1171         case RIL_UNSOL_RESPONSE_CDMA_NEW_SMS: return "UNSOL_RESPONSE_CDMA_NEW_SMS";
   1172         case RIL_UNSOL_RESPONSE_NEW_BROADCAST_SMS: return "UNSOL_RESPONSE_NEW_BROADCAST_SMS";
   1173         case RIL_UNSOL_CDMA_RUIM_SMS_STORAGE_FULL: return "UNSOL_CDMA_RUIM_SMS_STORAGE_FULL";
   1174         case RIL_UNSOL_RESTRICTED_STATE_CHANGED: return "UNSOL_RESTRICTED_STATE_CHANGED";
   1175         case RIL_UNSOL_ENTER_EMERGENCY_CALLBACK_MODE: return "UNSOL_ENTER_EMERGENCY_CALLBACK_MODE";
   1176         case RIL_UNSOL_CDMA_CALL_WAITING: return "UNSOL_CDMA_CALL_WAITING";
   1177         case RIL_UNSOL_CDMA_OTA_PROVISION_STATUS: return "UNSOL_CDMA_OTA_PROVISION_STATUS";
   1178         case RIL_UNSOL_CDMA_INFO_REC: return "UNSOL_CDMA_INFO_REC";
   1179         case RIL_UNSOL_OEM_HOOK_RAW: return "UNSOL_OEM_HOOK_RAW";
   1180         case RIL_UNSOL_RINGBACK_TONE: return "UNSOL_RINGBACK_TONE";
   1181         case RIL_UNSOL_RESEND_INCALL_MUTE: return "UNSOL_RESEND_INCALL_MUTE";
   1182         case RIL_UNSOL_CDMA_SUBSCRIPTION_SOURCE_CHANGED: return "UNSOL_CDMA_SUBSCRIPTION_SOURCE_CHANGED";
   1183         case RIL_UNSOL_CDMA_PRL_CHANGED: return "UNSOL_CDMA_PRL_CHANGED";
   1184         case RIL_UNSOL_EXIT_EMERGENCY_CALLBACK_MODE: return "UNSOL_EXIT_EMERGENCY_CALLBACK_MODE";
   1185         case RIL_UNSOL_RIL_CONNECTED: return "UNSOL_RIL_CONNECTED";
   1186         case RIL_UNSOL_VOICE_RADIO_TECH_CHANGED: return "UNSOL_VOICE_RADIO_TECH_CHANGED";
   1187         case RIL_UNSOL_CELL_INFO_LIST: return "UNSOL_CELL_INFO_LIST";
   1188         case RIL_UNSOL_RESPONSE_IMS_NETWORK_STATE_CHANGED: return "UNSOL_RESPONSE_IMS_NETWORK_STATE_CHANGED";
   1189         case RIL_UNSOL_UICC_SUBSCRIPTION_STATUS_CHANGED: return "UNSOL_UICC_SUBSCRIPTION_STATUS_CHANGED";
   1190         case RIL_UNSOL_SRVCC_STATE_NOTIFY: return "UNSOL_SRVCC_STATE_NOTIFY";
   1191         case RIL_UNSOL_HARDWARE_CONFIG_CHANGED: return "UNSOL_HARDWARE_CONFIG_CHANGED";
   1192         case RIL_UNSOL_DC_RT_INFO_CHANGED: return "UNSOL_DC_RT_INFO_CHANGED";
   1193         case RIL_UNSOL_RADIO_CAPABILITY: return "UNSOL_RADIO_CAPABILITY";
   1194         case RIL_UNSOL_MODEM_RESTART: return "UNSOL_MODEM_RESTART";
   1195         case RIL_UNSOL_CARRIER_INFO_IMSI_ENCRYPTION: return "UNSOL_CARRIER_INFO_IMSI_ENCRYPTION";
   1196         case RIL_UNSOL_ON_SS: return "UNSOL_ON_SS";
   1197         case RIL_UNSOL_STK_CC_ALPHA_NOTIFY: return "UNSOL_STK_CC_ALPHA_NOTIFY";
   1198         case RIL_UNSOL_LCEDATA_RECV: return "UNSOL_LCEDATA_RECV";
   1199         case RIL_UNSOL_PCO_DATA: return "UNSOL_PCO_DATA";
   1200         default: return "<unknown request>";
   1201     }
   1202 }
   1203 
   1204 const char *
   1205 rilSocketIdToString(RIL_SOCKET_ID socket_id)
   1206 {
   1207     switch(socket_id) {
   1208         case RIL_SOCKET_1:
   1209             return "RIL_SOCKET_1";
   1210 #if (SIM_COUNT >= 2)
   1211         case RIL_SOCKET_2:
   1212             return "RIL_SOCKET_2";
   1213 #endif
   1214 #if (SIM_COUNT >= 3)
   1215         case RIL_SOCKET_3:
   1216             return "RIL_SOCKET_3";
   1217 #endif
   1218 #if (SIM_COUNT >= 4)
   1219         case RIL_SOCKET_4:
   1220             return "RIL_SOCKET_4";
   1221 #endif
   1222         default:
   1223             return "not a valid RIL";
   1224     }
   1225 }
   1226 
   1227 } /* namespace android */
   1228