本文讲解SIMRecords
/frameworks/opt/telephony/src/java/com/android/internal/telephony/uicc/SIMRecords.java
构造方法：
public SIMRecords(UiccCardApplication app, Context c, CommandsInterface ci) {
super(app, c, ci);
mAdnCache = new AdnRecordCache(mFh);
mVmConfig = new VoiceMailConstants();
mSpnOverride = new SpnOverride();
mCi.setOnSmsOnSim(this, EVENT_SMS_ON_SIM, null);//消息注册，当Ci接收到EVENT_SMS_ON_SIM消息通知SIMRecords
mCi.registerForIccRefresh(this, EVENT_SIM_REFRESH, null);
// Start off by setting empty state
resetRecords();
mParentApp.registerForReady(this, EVENT_APP_READY, null);//当卡准备好，UiccCardApplication会通过notifyReadyRegistrantsifNeeded()通知SIMRecords
mParentApp.registerForLocked(this, EVENT_APP_LOCKED, null);//EVENT_APP_LOCKED消息同样处理
if (DBG) log("SIMRecords X ctor this=" + this);
IntentFilter intentfilter = new IntentFilter();
intentfilter.addAction(CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED);
c.registerReceiver(mReceiver, intentfilter); //接收ACTION_CARRIER_CONFIG_CHANGED消息的处理
}
接收UiccCardApplication 的通知，消息EVENT_APP_READY、EVENT_APP_LOCKED 的处理：
try { switch (msg.what) {
case EVENT_APP_READY:
onReady();
break;
case EVENT_APP_LOCKED:
onLocked();
break;
}
onReady() 方法，直接调用fetchSimRecords()，到这里开始加载EF文件信息:
具体的读取SIM卡EF文件信息的过程是有IccFileHandler来实现的，根据EF文件的类型，调用不同的方法loadEFTransparent()和loadEFLinearFixed()，最终都会调用RILJ 的iccIOForApp() 方法；
protected void fetchSimRecords() {
if (DBG) log("fetchSimRecords " + mRecordsToLoad);
mCi.getIMSIForApp(mParentApp.getAid(), obtainMessage(EVENT_GET_IMSI_DONE));//获取IMSI信息，返回的数据在该类handleMessage()中处理
mRecordsToLoad++; //没读取一项信息，计数值就加1
mFh.loadEFTransparent(EF_ICCID, obtainMessage(EVENT_GET_ICCID_DONE));//获取ICCID
mRecordsToLoad++;
// Same goes for Call Forward Status indicator: fetch both
// EF[CFIS] and CPHS-EF, with EF[CFIS] preferred.
loadCallForwardingRecords();
getSpnFsm(true, null);
loadEfLiAndEfPl();
if (CRASH_RIL) {
String sms = "0107912160130310f20404d0110041007030208054832b0120"
+ "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+ "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+ "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+ "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+ "ffffffffffffffffffffffffffffff";
byte[] ba = IccUtils.hexStringToBytes(sms);
mFh.updateEFLinearFixed(EF_SMS, 1, ba, null,
obtainMessage(EVENT_MARK_SMS_READ_DONE, 1));
}
if (DBG) log("fetchSimRecords " + mRecordsToLoad + " requested: " + mRecordsRequested);
}
loadEFTransparent() 方法：
public void loadEFTransparent(int fileid, Message onLoaded) {
Message response = obtainMessage(EVENT_GET_BINARY_SIZE_DONE,
fileid, , onLoaded);
mCi.iccIOForApp(COMMAND_GET_RESPONSE, fileid, getEFPath(fileid),
, , GET_RESPONSE_EF_SIZE_BYTES, null, null, mAid, response);
}
消息EVENT_GET_IMSI_DONE、EVNET_GET_ICCID_DONE在handleMessage() 中处理，解析出IMSI、ICCID值:
/* IO events */
case EVENT_GET_IMSI_DONE:
isRecordLoadResponse = true; ar = (AsyncResult)msg.obj; mImsi = (String) ar.result;//获取MCC、MNC、MSIN
// IMSI (MCC+MNC+MSIN) is at least 6 digits, but not more
// than 15 (and usually 15).
if (mImsi != null && (mImsi.length() < || mImsi.length() > )) {
loge("invalid IMSI " + mImsi);
mImsi = null;
} log("IMSI: mMncLength=" + mMncLength);
log("IMSI: " + mImsi.substring(, ) + "xxxxxxx");
.........
mImsiReadyRegistrants.notifyRegistrants();
break;
case EVENT_GET_ICCID_DONE:
isRecordLoadResponse = true; ar = (AsyncResult)msg.obj;
data = (byte[])ar.result;
mIccId = IccUtils.bcdToString(data, , data.length);//转换BCD码
mFullIccId = IccUtils.bchToString(data, , data.length); log("iccid: " + SubscriptionInfo.givePrintableIccid(mFullIccId));
break;
handleMessage() 方法解析数据后，调用onRecordLoaded()方法，mRecordsToLoad减1:
protected void onRecordLoaded() {
// One record loaded successfully or failed, In either case
// we need to update the recordsToLoad count
mRecordsToLoad -= 1;//SIM数据读取成功一次，该参数就减1
if (DBG) log("onRecordLoaded " + mRecordsToLoad + " requested: " + mRecordsRequested);
if (mRecordsToLoad == 0 && mRecordsRequested == true) {//mRecordsToLoad值为0，代表fetchSimRecords()中启动加载的数据都已异步读取完成
onAllRecordsLoaded();
} else if (mRecordsToLoad < 0) {
loge("recordsToLoad <0, programmer error suspected");
mRecordsToLoad = 0;
}
}
mRecordsToLoad 值为0，进入onAllRecordsLoaded() 方法，对读取的数据进行处理与存储：
protected void onAllRecordsLoaded() {
if (DBG) log("record load complete");
Resources resource = Resources.getSystem();
if (resource.getBoolean(com.android.internal.R.bool.config_use_sim_language_file)) {
setSimLanguage(mEfLi, mEfPl);
} else {
if (DBG) log ("Not using EF LI/EF PL");
}
setVoiceCallForwardingFlagFromSimRecords();
if (mParentApp.getState() == AppState.APPSTATE_PIN ||
mParentApp.getState() == AppState.APPSTATE_PUK) {
// reset recordsRequested, since sim is not loaded really
mRecordsRequested = false;
// lock state, only update language
return ;
}
// Some fields require more than one SIM record to set
String operator = getOperatorNumeric();
if (!TextUtils.isEmpty(operator)) {
log("onAllRecordsLoaded set 'gsm.sim.operator.numeric' to operator='" +
operator + "'");
log("update icc_operator_numeric=" + operator);
mTelephonyManager.setSimOperatorNumericForPhone(
mParentApp.getPhoneId(), operator);
final SubscriptionController subController = SubscriptionController.getInstance();
subController.setMccMnc(operator, subController.getDefaultSubId());
} else {
log("onAllRecordsLoaded empty 'gsm.sim.operator.numeric' skipping");
}
if (!TextUtils.isEmpty(mImsi)) {
log("onAllRecordsLoaded set mcc imsi" + (VDBG ? ("=" + mImsi) : ""));
mTelephonyManager.setSimCountryIsoForPhone(
mParentApp.getPhoneId(), MccTable.countryCodeForMcc(
Integer.parseInt(mImsi.substring(0,3))));
} else {
log("onAllRecordsLoaded empty imsi skipping setting mcc");
}
setVoiceMailByCountry(operator);
mRecordsLoadedRegistrants.notifyRegistrants(
new AsyncResult(null, null, null));
}
到此sim卡初始化基本流程就结束了。