Android笔记——EuiccCard创建过程

1. UiccController收到以下三条消息的时候：

1）IccStatus变化的主动上报： EVENT_ICC_STATUS_CHANGED

F:ubuntucodeandroid-pframeworksopt	elephonysrcjavacomandroidinternal	elephonyuiccUiccController.java
1                 case EVENT_ICC_STATUS_CHANGED:
2                     if (DBG) log("Received EVENT_ICC_STATUS_CHANGED, calling getIccCardStatus");
3                     mCis[phoneId].getIccCardStatus(obtainMessage(EVENT_GET_ICC_STATUS_DONE,
4                             phoneId));
5                     break;

2）Radio状态变为Available或者On：EVENT_RADIO_AVAILABLE or EVENT_RADIO_ON

1                 case EVENT_RADIO_AVAILABLE:
2                 case EVENT_RADIO_ON:
3                     if (DBG) {
4                         log("Received EVENT_RADIO_AVAILABLE/EVENT_RADIO_ON, calling "
5                                 + "getIccCardStatus");
6                     }
7                     mCis[phoneId].getIccCardStatus(obtainMessage(EVENT_GET_ICC_STATUS_DONE,
8                             phoneId));

3）SIM卡信息刷新（为RESET或INIT时）：EVENT_SIM_REFRESH

1     private void onSimRefresh(AsyncResult ar, Integer index) {
2         // The card status could have changed. Get the latest state.
3         mCis[index].getIccCardStatus(obtainMessage(EVENT_GET_ICC_STATUS_DONE, index));
4     }

会触发向底层IccCardStatus的查询（见上面红字部分）。

1 mCi.getIccCardStatus(obtainMessage(EVENT_GET_ICC_STATUS_DONE, index));

2. 根据当前配置的Radio版本号不同，底层会返回上层不同的数据格式。目前telephony已经有两套代码，Google的RIL仓下只有一套代码，暂时不知道Google是什么意思。

/hardware/ril/libril/ril_service.cpp

 1 int radio::getIccCardStatusResponse(int slotId,
 2                                    int responseType, int serial, RIL_Errno e,
 3                                    void *response, size_t responseLen) {
 4     if (radioService[slotId]->mRadioResponse != NULL) {
 5         RadioResponseInfo responseInfo = {};
 6         populateResponseInfo(responseInfo, serial, responseType, e);
 7         CardStatus cardStatus = {};
 8         RIL_CardStatus_v6 *p_cur = ((RIL_CardStatus_v6 *) response);
 9         if (response == NULL || responseLen != sizeof(RIL_CardStatus_v6)
10                 || p_cur->gsm_umts_subscription_app_index >= p_cur->num_applications
11                 || p_cur->cdma_subscription_app_index >= p_cur->num_applications
12                 || p_cur->ims_subscription_app_index >= p_cur->num_applications) {
13             RLOGE("getIccCardStatusResponse: Invalid response");
14             if (e == RIL_E_SUCCESS) responseInfo.error = RadioError::INVALID_RESPONSE;
15         } else {
16             cardStatus.cardState = (CardState) p_cur->card_state;
17             cardStatus.universalPinState = (PinState) p_cur->universal_pin_state;
18             cardStatus.gsmUmtsSubscriptionAppIndex = p_cur->gsm_umts_subscription_app_index;
19             cardStatus.cdmaSubscriptionAppIndex = p_cur->cdma_subscription_app_index;
20             cardStatus.imsSubscriptionAppIndex = p_cur->ims_subscription_app_index;
21 
22             RIL_AppStatus *rilAppStatus = p_cur->applications;
23             cardStatus.applications.resize(p_cur->num_applications);
24             AppStatus *appStatus = cardStatus.applications.data();
25 #if VDBG
26             RLOGD("getIccCardStatusResponse: num_applications %d", p_cur->num_applications);
27 #endif
28             for (int i = 0; i < p_cur->num_applications; i++) {
29                 appStatus[i].appType = (AppType) rilAppStatus[i].app_type;
30                 appStatus[i].appState = (AppState) rilAppStatus[i].app_state;
31                 appStatus[i].persoSubstate = (PersoSubstate) rilAppStatus[i].perso_substate;
32                 appStatus[i].aidPtr = convertCharPtrToHidlString(rilAppStatus[i].aid_ptr);
33                 appStatus[i].appLabelPtr = convertCharPtrToHidlString(
34                         rilAppStatus[i].app_label_ptr);
35                 appStatus[i].pin1Replaced = rilAppStatus[i].pin1_replaced;
36                 appStatus[i].pin1 = (PinState) rilAppStatus[i].pin1;
37                 appStatus[i].pin2 = (PinState) rilAppStatus[i].pin2;
38             }
39         }
40 
41         Return<void> retStatus = radioService[slotId]->mRadioResponse->
42                 getIccCardStatusResponse(responseInfo, cardStatus); // 调用到上层RadioResponse的getIccCardStatusResponse借口。而_1_2的接口暂时没有用到。
43         radioService[slotId]->checkReturnStatus(retStatus);
44     } else {
45         RLOGE("getIccCardStatusResponse: radioService[%d]->mRadioResponse == NULL", slotId);
46     }
47 
48     return 0;
49 }

3. 收到底层的回复时，会触发卡信息的更新。

F:ubuntucodeandroid-pframeworksopt	elephonysrcjavacomandroidinternal	elephonyuiccUiccController.java
1                 case EVENT_GET_ICC_STATUS_DONE:
2                     if (DBG) log("Received EVENT_GET_ICC_STATUS_DONE");
3                     onGetIccCardStatusDone(ar, phoneId);
4                     break;