Add adb command for setting and getting SIMs

Test: manually verified adb commands work
Bug: 123643264
Change-Id: I5a9e42c23dfe217f9271b1b4d8b940375c04edc9

cmds/telecom/src/com/android/commands/telecom/Telecom.java

@@ -20,16 +20,21 @@ import android.content.ComponentName;
 import android.content.Context;
 import android.net.Uri;
 import android.os.IUserManager;
+import android.os.Process;
 import android.os.RemoteException;
 import android.os.ServiceManager;
+import android.os.SystemProperties;
 import android.os.UserHandle;
 import android.telecom.Log;
 import android.telecom.PhoneAccount;
 import android.telecom.PhoneAccountHandle;
+import android.telephony.TelephonyManager;
 import android.text.TextUtils;
 
 import com.android.internal.os.BaseCommand;
 import com.android.internal.telecom.ITelecomService;
+import com.android.internal.telephony.ITelephony;
+import com.android.internal.telephony.TelephonyProperties;
 
 import java.io.PrintStream;
 
@@ -62,10 +67,14 @@ public final class Telecom extends BaseCommand {
     private static final String COMMAND_GET_DEFAULT_DIALER = "get-default-dialer";
     private static final String COMMAND_GET_SYSTEM_DIALER = "get-system-dialer";
     private static final String COMMAND_WAIT_ON_HANDLERS = "wait-on-handlers";
+    private static final String COMMAND_SET_SIM_COUNT = "set-sim-count";
+    private static final String COMMAND_GET_SIM_CONFIG = "get-sim-config";
+    private static final String COMMAND_GET_MAX_PHONES = "get-max-phones";
 
     private ComponentName mComponent;
     private String mAccountId;
     private ITelecomService mTelecomService;
+    private ITelephony mTelephonyService;
     private IUserManager mUserManager;
 
     @Override
@@ -88,21 +97,32 @@ public final class Telecom extends BaseCommand {
                 + "usage: telecom get-default-dialer\n"
                 + "usage: telecom get-system-dialer\n"
                 + "usage: telecom wait-on-handlers\n"
+                + "usage: telecom set-sim-count <COUNT>\n"
+                + "usage: telecom get-sim-config\n"
+                + "usage: telecom get-max-phones\n"
                 + "\n"
-                + "telecom set-phone-account-enabled: Enables the given phone account, if it has \n"
-                + " already been registered with Telecom.\n"
+                + "telecom set-phone-account-enabled: Enables the given phone account, if it has"
+                        + " already been registered with Telecom.\n"
                 + "\n"
-                + "telecom set-phone-account-disabled: Disables the given phone account, if it \n"
-                + " has already been registered with telecom.\n"
+                + "telecom set-phone-account-disabled: Disables the given phone account, if it"
+                        + " has already been registered with telecom.\n"
                 + "\n"
-                + "telecom set-default-dialer: Sets the override default dialer to the given "
-                + "component; this will override whatever the dialer role is set to. \n"
+                + "telecom set-default-dialer: Sets the override default dialer to the given"
+                        + " component; this will override whatever the dialer role is set to.\n"
                 + "\n"
-                + "telecom get-default-dialer: Displays the current default dialer. \n"
+                + "telecom get-default-dialer: Displays the current default dialer.\n"
                 + "\n"
-                + "telecom get-system-dialer: Displays the current system dialer. \n"
+                + "telecom get-system-dialer: Displays the current system dialer.\n"
                 + "\n"
-                + "telecom wait-on-handlers: Wait until all handlers finish their work. \n"
+                + "telecom wait-on-handlers: Wait until all handlers finish their work.\n"
+                + "\n"
+                + "telecom set-sim-count: Set num SIMs (2 for DSDS, 1 for single SIM."
+                        + " This may restart the device.\n"
+                + "\n"
+                + "telecom get-sim-config: Get the mSIM config string. \"DSDS\" for DSDS mode,"
+                        + " or \"\" for single SIM\n"
+                + "\n"
+                + "telecom get-max-phones: Get the max supported phones from the modem.\n"
         );
     }
 
@@ -115,6 +135,15 @@ public final class Telecom extends BaseCommand {
             showError("Error: Could not access the Telecom Manager. Is the system running?");
             return;
         }
+
+        mTelephonyService = ITelephony.Stub.asInterface(
+                ServiceManager.getService(Context.TELEPHONY_SERVICE));
+        if (mTelephonyService == null) {
+            Log.w(this, "onRun: Can't access telephony service.");
+            showError("Error: Could not access the Telephony Service. Is the system running?");
+            return;
+        }
+
         mUserManager = IUserManager.Stub
                 .asInterface(ServiceManager.getService(Context.USER_SERVICE));
         if (mUserManager == null) {
@@ -170,6 +199,15 @@ public final class Telecom extends BaseCommand {
             case COMMAND_WAIT_ON_HANDLERS:
                 runWaitOnHandler();
                 break;
+            case COMMAND_SET_SIM_COUNT:
+                runSetSimCount();
+                break;
+            case COMMAND_GET_SIM_CONFIG:
+                runGetSimConfig();
+                break;
+            case COMMAND_GET_MAX_PHONES:
+                runGetMaxPhones();
+                break;
             default:
                 Log.w(this, "onRun: unknown command: %s", command);
                 throw new IllegalArgumentException ("unknown command '" + command + "'");
@@ -271,6 +309,35 @@ public final class Telecom extends BaseCommand {
 
     }
 
+    private void runSetSimCount() throws RemoteException {
+        if (!callerIsRoot()) {
+            System.out.println("set-sim-count requires adb root");
+            return;
+        }
+        int numSims = Integer.parseInt(nextArgRequired());
+        System.out.println("Setting sim count to " + numSims + ". Device may reboot");
+        mTelephonyService.switchMultiSimConfig(numSims);
+    }
+
+    /**
+     * Prints the mSIM config to the console.
+     * "DSDS" for a phone in DSDS mode
+     * "" (empty string) for a phone in SS mode
+     */
+    private void runGetSimConfig() throws RemoteException {
+        System.out.println(SystemProperties.get(TelephonyProperties.PROPERTY_MULTI_SIM_CONFIG));
+    }
+
+    private void runGetMaxPhones() throws RemoteException {
+        // This assumes the max number of SIMs is 2, which it currently is
+        if (TelephonyManager.MULTISIM_ALLOWED
+                == mTelephonyService.isMultiSimSupported("com.android.commands.telecom")) {
+            System.out.println("2");
+        } else {
+            System.out.println("1");
+        }
+    }
+
     private PhoneAccountHandle getPhoneAccountHandleFromArgs() throws RemoteException {
         if (TextUtils.isEmpty(mArgs.peekNextArg())) {
             return null;
@@ -289,6 +356,10 @@ public final class Telecom extends BaseCommand {
         return new PhoneAccountHandle(component, accountId, userHandle);
     }
 
+    private boolean callerIsRoot() {
+        return Process.ROOT_UID == Process.myUid();
+    }
+
     private ComponentName parseComponentName(String component) {
         ComponentName cn = ComponentName.unflattenFromString(component);
         if (cn == null) {