1 /* 2 * Copyright (C) 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.internal.telephony.uicc; 18 19 import android.annotation.NonNull; 20 21 import com.android.internal.telephony.uicc.IccSlotStatus.MultipleEnabledProfilesMode; 22 23 /** 24 * Various methods, useful for dealing with port. 25 */ 26 public class PortUtils { 27 28 /** 29 * Converts the port index to compatible with the HAL. 30 * 31 * @param mepMode supported MultipleEnabledProfilesMode 32 * @param portIndex port index 33 * @return target index according to the MultipleEnabledProfilesMode 34 */ convertToHalPortIndex(@onNull MultipleEnabledProfilesMode mepMode, int portIndex)35 public static int convertToHalPortIndex(@NonNull MultipleEnabledProfilesMode mepMode, 36 int portIndex) { 37 // In case of MEP-A1 and MEP-A2, profiles are selected on eSIM Ports 1 and higher, hence 38 // HAL expects the ports are indexed with 1, 2... etc. 39 // So inorder to compatible with HAL, shift the port index. 40 return mepMode.isMepAMode() ? ++portIndex : portIndex; 41 } 42 43 /** 44 * Converts the port index to compatible with the HAL. 45 * 46 * @param slotIndex physical slot index corresponding to the portIndex 47 * @param portIndex port index 48 * @return target port index according to the MultipleEnabledProfilesMode 49 */ convertToHalPortIndex(int slotIndex, int portIndex)50 public static int convertToHalPortIndex(int slotIndex, int portIndex) { 51 return convertToHalPortIndex(UiccController.getInstance().getSupportedMepMode(slotIndex), 52 portIndex); 53 } 54 55 /** 56 * Converts the port index to compatible with the platform. 57 * 58 * @param slotIndex physical slot index corresponding to the portIndex 59 * @param portIndex target port index 60 * @param cardState cardState 61 * @param supportedMepMode supported MEP mode 62 * @return shifted port index according to the MultipleEnabledProfilesMode 63 */ convertFromHalPortIndex(int slotIndex, int portIndex, IccCardStatus.CardState cardState, MultipleEnabledProfilesMode supportedMepMode)64 public static int convertFromHalPortIndex(int slotIndex, int portIndex, 65 IccCardStatus.CardState cardState, MultipleEnabledProfilesMode supportedMepMode) { 66 // In case of MEP-A1 and MEP-A2, profiles are selected on eSIM Ports 1 and higher. 67 // But inorder to platform code MEP mode agnostic, platform always expects the ports 68 // are indexed with 0, 1... etc. Hence shift the target port index to be compatible 69 // with platform. 70 71 // When the SIM_STATUS is related to CARDSTATE_ABSENT, CardStatus will not contain proper 72 // MEP mode info, fallback onto to the supportedMepMode data available in UiccSlot. 73 MultipleEnabledProfilesMode mepMode = cardState.isCardPresent() ? supportedMepMode 74 : UiccController.getInstance().getSupportedMepMode(slotIndex); 75 return mepMode.isMepAMode() ? --portIndex : portIndex; 76 } 77 } 78