1 /*
2  * Copyright (C) 2019 The Android Open Source Project *
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *      http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include "utils.h"
17 #include "vibrator.h"
18 
19 namespace android {
20 namespace idlcli {
21 
22 class CommandVibrator;
23 
24 namespace vibrator {
25 
26 class CommandSetAmplitude : public Command {
getDescription() const27     std::string getDescription() const override { return "Set vibration amplitude."; }
28 
getUsageSummary() const29     std::string getUsageSummary() const override { return "<amplitude>"; }
30 
getUsageDetails() const31     UsageDetails getUsageDetails() const override {
32         UsageDetails details{
33                 {"<amplitude>", {"1-255."}},
34         };
35         return details;
36     }
37 
doArgs(Args & args)38     Status doArgs(Args &args) override {
39         if (auto amplitude = args.pop<decltype(mAmplitude)>()) {
40             mAmplitude = *amplitude;
41         } else {
42             std::cerr << "Missing or Invalid Amplitude!" << std::endl;
43             return USAGE;
44         }
45         if (!args.empty()) {
46             std::cerr << "Unexpected Arguments!" << std::endl;
47             return USAGE;
48         }
49         return OK;
50     }
51 
doMain(Args &&)52     Status doMain(Args && /*args*/) override {
53         std::string statusStr;
54         Status ret;
55 
56         if (auto hal = getHal<aidl::IVibrator>()) {
57             auto status = hal->call(&aidl::IVibrator::setAmplitude,
58                                     static_cast<float>(mAmplitude) / UINT8_MAX);
59             statusStr = status.getDescription();
60             ret = status.isOk() ? OK : ERROR;
61         } else if (auto hal = getHal<V1_0::IVibrator>()) {
62             auto status = hal->call(&V1_0::IVibrator::setAmplitude, mAmplitude);
63             statusStr = toString(status);
64             ret = status.isOk() && status == V1_0::Status::OK ? OK : ERROR;
65         } else {
66             return UNAVAILABLE;
67         }
68 
69         std::cout << "Status: " << statusStr << std::endl;
70 
71         return ret;
72     }
73 
74     uint8_t mAmplitude;
75 };
76 
77 static const auto Command =
78         CommandRegistry<CommandVibrator>::Register<CommandSetAmplitude>("setAmplitude");
79 
80 } // namespace vibrator
81 } // namespace idlcli
82 } // namespace android
83