1 /*
2  * Copyright (C) 2019 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.tradefed.targetprep;
18 
19 import com.android.tradefed.build.IBuildInfo;
20 import com.android.tradefed.device.DeviceNotAvailableException;
21 import com.android.tradefed.device.ITestDevice;
22 import com.android.tradefed.log.LogUtil;
23 
24 /**
25  * Preparer class for mSIM tests.
26  *
27  * <p>For devices with an mSIM capable modem, this preparer configures the modem to function in mSIM
28  * mode so that all slots can be tested, and then reverts the modem back in teardown.
29  */
30 public class MultiSimPreparer extends BaseTargetPreparer implements ITargetCleaner {
31     private ITestDevice mDevice;
32     private int mOriginalSims;
33 
34     // Wait up to 60 seconds for the device to turn off
35     private static final int SHUTDOWN_TIMEOUT_MS = 60000;
36 
37     @Override
setUp(ITestDevice device, IBuildInfo buildInfo)38     public void setUp(ITestDevice device, IBuildInfo buildInfo) throws DeviceNotAvailableException {
39         mDevice = device;
40         mOriginalSims = getNumSims();
41         int maxSims = getMaxPhones();
42         if (mOriginalSims != maxSims) {
43             if (!setSimCount(getMaxPhones())) {
44                 LogUtil.CLog.w("Cannot set sim count before test");
45             }
46         }
47     }
48 
49     @Override
tearDown(ITestDevice device, IBuildInfo buildInfo, Throwable throwable)50     public void tearDown(ITestDevice device, IBuildInfo buildInfo, Throwable throwable)
51             throws DeviceNotAvailableException {
52         if (mOriginalSims != getNumSims()) {
53             if (!setSimCount(mOriginalSims)) {
54                 LogUtil.CLog.w("Cannot reset sim count after test");
55             }
56         }
57     }
58 
getMaxPhones()59     private int getMaxPhones() throws DeviceNotAvailableException {
60         try {
61             return Integer.parseInt(executeCmd("telecom get-max-phones"));
62         } catch (NumberFormatException e) {
63             LogUtil.CLog.w("Cannot get max phones. Assuming 1.");
64             return 1;
65         }
66     }
67 
getNumSims()68     private int getNumSims() throws DeviceNotAvailableException {
69         String config = executeCmd("telecom get-sim-config");
70         if ("SSSS".equalsIgnoreCase(config) || config.isEmpty()) {
71             return 1;
72         } else if ("DSDS".equalsIgnoreCase(config)) {
73             return 2;
74         } else if ("TSTS".equalsIgnoreCase(config)) {
75             return 3;
76         }
77         LogUtil.CLog.w("Could not get SIM config, assuming 1 sim");
78         return 1;
79     }
80 
81     // returns true if succeeded, false if failed
setSimCount(int sims)82     private boolean setSimCount(int sims) throws DeviceNotAvailableException {
83         if (getNumSims() == sims) {
84             LogUtil.CLog.d("SIM count already correct.");
85             return true;
86         }
87         // reboot and wait for device ready
88         executeCmd("telecom set-sim-count " + sims);
89         executeCmd("reboot");
90         mDevice.waitForDeviceNotAvailable(SHUTDOWN_TIMEOUT_MS);
91         mDevice.waitForDeviceAvailable();
92         return getNumSims() == sims;
93     }
94 
executeCmd(String cmd)95     private String executeCmd(String cmd) throws DeviceNotAvailableException {
96         return mDevice.executeShellCommand(cmd).trim();
97     }
98 }
99