Add API to handle user's subscription selection changes. (4ded8520) · Commits · e / os / android_frameworks_opt_telephony

src/java/com/android/internal/telephony/SubscriptionController.java

+229 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,7 @@ import android.telephony.SubscriptionInfo;
		import android.telephony.SubscriptionManager;
		import android.telephony.TelephonyManager;
		import android.telephony.UiccAccessRule;
		import android.telephony.UiccSlotInfo;
		import android.telephony.euicc.EuiccManager;
		import android.text.TextUtils;
		import android.text.format.Time;
		@@ -2933,6 +2934,234 @@ public class SubscriptionController extends ISub.Stub {
		}
		}

		@Override
		public boolean setSubscriptionEnabled(boolean enable, int subId) {
		// TODO: b/123314365 support multi-eSIM and removable eSIM.
		enforceModifyPhoneState("setSubscriptionEnabled");

		long identity = Binder.clearCallingIdentity();
		try {
		// Error checking.
		if (!SubscriptionManager.isUsableSubIdValue(subId)) {
		throw new IllegalArgumentException(
		"setUserSelectedSubscription with invalid subId " + subId);
		}
		if (mTelephonyManager.getPhoneCount() <= 1) {
		loge("setSubscriptionEnabled not supported in single SIM modem.");
		return false;
		}
		List<SubscriptionInfo> infoList = getSubInfo(
		SubscriptionManager.UNIQUE_KEY_SUBSCRIPTION_ID + "=" + subId, null);
		if (infoList == null \|\| infoList.isEmpty()) {
		loge("setUserSelectedSubscription can't find subId " + subId);
		return false;
		}

		// For eSIM, inactive can still be enabled. Because user maybe enabled an embedded
		// subscription while system switched to another one temporarily.
		// But for pSIM, inactive means it's unplugged. So it can no longer be enabled or
		// disabled.
		if (!infoList.get(0).isEmbedded() && !isActiveSubId(subId)) {
		return false;
		}

		// Error checking done.
		return setSubscriptionEnabledInternal(infoList.get(0), enable);
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		private boolean setSubscriptionEnabledInternal(SubscriptionInfo info, boolean enable) {
		int physicalSlotIndex = getPhysicalSlotIndex(info.isEmbedded(),
		info.getSubscriptionId());
		logd("setSubscriptionEnabledInternal setting subId " + info.getSubscriptionId()
		+ " at physicalSlotIndex " + physicalSlotIndex
		+ (enable ? " enabled." : " disabled."));

		int subId = info.getSubscriptionId();

		if (info.isEmbedded()) {
		return setSubscriptionOnEmbeddedSlot(subId, enable, physicalSlotIndex);
		} else {
		return setSubscriptionOnPhysicalSlot(subId, enable, physicalSlotIndex);
		}
		}

		private boolean setSubscriptionOnEmbeddedSlot(int subId, boolean enable,
		int physicalSlotIndex) {
		subId = enable ? subId : SubscriptionManager.INVALID_SUBSCRIPTION_ID;
		// Switch eSIM profile and keep it in global settings.
		EuiccManager euiccManager = (EuiccManager)
		mContext.getSystemService(Context.EUICC_SERVICE);
		euiccManager.switchToSubscription(subId, PendingIntent.getService(
		mContext, 0, new Intent(), 0));
		updateEnabledSubscriptionGlobalSetting(subId, physicalSlotIndex);
		refreshCachedActiveSubscriptionInfoList();
		return true;
		}

		private boolean setSubscriptionOnPhysicalSlot(int subId, boolean enable,
		int physicalSlotIndex) {
		// Enable / disable pSIM modem and keep the value in global settings.
		if (mTelephonyManager.enableModemForSlot(getPhoneId(subId), enable)) {
		// For physical slot, in addition to which subscription is enabled in the slot,
		// we also store whether the modem stack is enabled or not.
		updateEnabledSubscriptionGlobalSetting(
		enable ? subId : SubscriptionManager.INVALID_SUBSCRIPTION_ID,
		physicalSlotIndex);
		updateModemStackEnabledGlobalSetting(enable, physicalSlotIndex);
		refreshCachedActiveSubscriptionInfoList();
		return true;
		} else {
		// Operation failed. Do nothing.
		return false;
		}
		}

		private void updateEnabledSubscriptionGlobalSetting(int subId, int physicalSlotIndex) {
		// Write the value which subscription is enabled into global setting.
		Settings.Global.putInt(mContext.getContentResolver(),
		Settings.Global.ENABLED_SUBSCRIPTION_FOR_SLOT + physicalSlotIndex, subId);
		}

		private void updateModemStackEnabledGlobalSetting(boolean enabled, int physicalSlotIndex) {
		// Write the whether a modem stack is disabled into global setting.
		Settings.Global.putInt(mContext.getContentResolver(),
		Settings.Global.MODEM_STACK_ENABLED_FOR_SLOT
		+ physicalSlotIndex, enabled ? 1 : 0);
		}

		private int getPhysicalSlotIndex(boolean isEmbedded, int subId) {
		UiccSlotInfo[] slotInfos = mTelephonyManager.getUiccSlotsInfo();
		int logicalSlotIndex = getSlotIndex(subId);
		int physicalSlotIndex = SubscriptionManager.INVALID_SIM_SLOT_INDEX;
		boolean isLogicalSlotIndexValid = SubscriptionManager.isValidSlotIndex(logicalSlotIndex);

		for (int i = 0; i < slotInfos.length; i++) {
		// If we can know the logicalSlotIndex from subId, we should find the exact matching
		// physicalSlotIndex. However for some cases like inactive eSIM, the logicalSlotIndex
		// will be -1. In this case, we assume there's only one eSIM, and return the
		// physicalSlotIndex of that eSIM.
		if ((isLogicalSlotIndexValid && slotInfos[i].getLogicalSlotIdx() == logicalSlotIndex)
		\|\| (!isLogicalSlotIndexValid && slotInfos[i].getIsEuicc() && isEmbedded)) {
		physicalSlotIndex = i;
		break;
		}
		}

		return physicalSlotIndex;
		}

		private int getPhysicalSlotIndexFromLogicalSlotIndex(int logicalSlotIndex) {
		int physicalSlotIndex = SubscriptionManager.INVALID_SIM_SLOT_INDEX;
		UiccSlotInfo[] slotInfos = mTelephonyManager.getUiccSlotsInfo();
		for (int i = 0; i < slotInfos.length; i++) {
		if (slotInfos[i].getLogicalSlotIdx() == logicalSlotIndex) {
		physicalSlotIndex = i;
		break;
		}
		}

		return physicalSlotIndex;
		}

		@Override
		public boolean isSubscriptionEnabled(int subId) {
		// TODO: b/123314365 support multi-eSIM and removable eSIM.
		enforceReadPrivilegedPhoneState("isSubscriptionEnabled");

		long identity = Binder.clearCallingIdentity();
		try {
		// Subscription enable / disable shouldn't matter for single SIM devices.
		if (mTelephonyManager.getPhoneCount() <= 1) {
		return isActiveSubId(subId);
		}
		// Error checking.
		if (!SubscriptionManager.isUsableSubIdValue(subId)) {
		throw new IllegalArgumentException(
		"setUserSelectedSubscription with invalid subId " + subId);
		}
		List<SubscriptionInfo> infoList = getSubInfo(
		SubscriptionManager.UNIQUE_KEY_SUBSCRIPTION_ID + "=" + subId, null);
		if (infoList == null \|\| infoList.isEmpty()) {
		loge("setUserSelectedSubscription can't find subId " + subId);
		return false;
		}

		boolean isEmbedded = infoList.get(0).isEmbedded();
		boolean isActiveSub = isActiveSubId(subId);
		int physicalSlotIndex = getPhysicalSlotIndex(isEmbedded, subId);
		// DEFAULT_SUBSCRIPTION_ID if not set.
		int enabledSubId = Settings.Global.getInt(mContext.getContentResolver(),
		Settings.Global.ENABLED_SUBSCRIPTION_FOR_SLOT + physicalSlotIndex,
		SubscriptionManager.DEFAULT_SUBSCRIPTION_ID);
		boolean modemStackEnabled = Settings.Global.getInt(mContext.getContentResolver(),
		Settings.Global.MODEM_STACK_ENABLED_FOR_SLOT
		+ physicalSlotIndex, 1) == 1;
		boolean enabledSubIdNotSet =
		(enabledSubId == SubscriptionManager.DEFAULT_SUBSCRIPTION_ID);
		boolean enabledSubIdMatch = (enabledSubId == subId);

		if (isEmbedded) {
		// For eSIM, enabled means means modem stack is enabled and it either 1) matches
		// what was set enabled in global setting, or 2) global setting is never set but
		// it's the currently active subscription.
		return modemStackEnabled && (enabledSubIdMatch
		\|\| (enabledSubIdNotSet && isActiveSub));
		} else {
		// For pSIM, enabled means modem stack is enabled and it's the currently active
		// subscription.
		return modemStackEnabled && isActiveSub;
		}

		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		@Override
		public int getEnabledSubscriptionId(int logicalSlotIndex) {
		// TODO: b/123314365 support multi-eSIM and removable eSIM.
		enforceReadPrivilegedPhoneState("getEnabledSubscriptionId");

		long identity = Binder.clearCallingIdentity();
		try {
		if (!SubscriptionManager.isValidPhoneId(logicalSlotIndex)) {
		throw new IllegalArgumentException(
		"getEnabledSubscriptionId with invalid logicalSlotIndex "
		+ logicalSlotIndex);
		}

		// Getting physicalSlotIndex
		int physicalSlotIndex = getPhysicalSlotIndexFromLogicalSlotIndex(logicalSlotIndex);
		if (!SubscriptionManager.isValidSlotIndex(physicalSlotIndex)) {
		return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
		}

		// if modem stack is disabled, return INVALID_SUBSCRIPTION_ID without reading
		// Settings.Global.ENABLED_SUBSCRIPTION_FOR_SLOT.
		int modemStackEnabled = Settings.Global.getInt(mContext.getContentResolver(),
		Settings.Global.MODEM_STACK_ENABLED_FOR_SLOT + physicalSlotIndex, 1);
		if (modemStackEnabled != 1) {
		return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
		}

		int subId;
		try {
		subId = Settings.Global.getInt(mContext.getContentResolver(),
		Settings.Global.ENABLED_SUBSCRIPTION_FOR_SLOT + physicalSlotIndex);
		} catch (Settings.SettingNotFoundException e) {
		// Value never set. Return whether it's currently active.
		subId = getSubIdUsingPhoneId(logicalSlotIndex);
		}

		return subId;
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		// Helper function of getOpportunisticSubscriptions and getActiveSubscriptionInfoList.
		// They are doing similar things except operating on different cache.
		private List<SubscriptionInfo> getSubscriptionInfoListFromCacheHelper(