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Commit ba43d547 authored by Ricky Niu's avatar Ricky Niu
Browse files

usb: migration to USB gadget AIDL 

Using the USB gadget AIDL

Bug: 261027750
Test: USB function switch success and AIDL service is running.
Change-Id: I4781ac9eb641a5340ecfb6bda0881761b7a01eb2
parent 515c9243

usbd/Android.bp

+2 −0
Original line number Diff line number Diff line
@@ -8,10 +8,12 @@ cc_binary { 
    srcs: ["usbd.cpp"],

    shared_libs: [

        "libbase",

        "libbinder_ndk",

        "libhidlbase",

        "liblog",

        "libutils",

        "libhardware",

        "android.hardware.usb.gadget@1.0",

        "android.hardware.usb.gadget-V1-ndk",

    ],

}

usbd/usbd.cpp

+58 −23
Original line number Diff line number Diff line
@@ -18,32 +18,66 @@ 


#include <string>



#include <aidl/android/hardware/usb/gadget/GadgetFunction.h>

#include <aidl/android/hardware/usb/gadget/IUsbGadget.h>

#include <android-base/logging.h>

#include <android-base/properties.h>

#include <android/binder_manager.h>

#include <android/binder_process.h>

#include <android/hardware/usb/gadget/1.0/IUsbGadget.h>



#include <hidl/HidlTransportSupport.h>



using aidl::android::hardware::usb::gadget::GadgetFunction;

using android::base::GetProperty;

using android::base::SetProperty;

using android::hardware::configureRpcThreadpool;

using android::hardware::usb::gadget::V1_0::GadgetFunction;

using android::hardware::usb::gadget::V1_0::IUsbGadget;

using android::hardware::Return;

using ndk::ScopedAStatus;

using std::shared_ptr;



std::atomic<int> sUsbOperationCount{};



int main(int /*argc*/, char** /*argv*/) {

    if (GetProperty("ro.bootmode", "") == "charger") exit(0);

    int operationId = sUsbOperationCount++;



    configureRpcThreadpool(1, true /*callerWillJoin*/);

    android::sp<IUsbGadget> gadget = IUsbGadget::getService();

    Return<void> ret;

    ABinderProcess_setThreadPoolMaxThreadCount(1);

    ABinderProcess_startThreadPool();

    const std::string service_name =

            std::string(aidl::android::hardware::usb::gadget::IUsbGadget::descriptor)

                    .append("/default");



    if (gadget != nullptr) {

        LOG(INFO) << "Usb HAL found.";

    std::string function = GetProperty("persist.sys.usb.config", "");

    if (function == "adb") {

            LOG(INFO) << "peristent prop is adb";

        LOG(INFO) << "persistent prop is adb";

        SetProperty("ctl.start", "adbd");

    }



    if (AServiceManager_isDeclared(service_name.c_str())) {

        shared_ptr<aidl::android::hardware::usb::gadget::IUsbGadget> gadget_aidl =

                aidl::android::hardware::usb::gadget::IUsbGadget::fromBinder(

                        ndk::SpAIBinder(AServiceManager_waitForService(service_name.c_str())));

        ScopedAStatus ret;

        if (gadget_aidl != nullptr) {

            LOG(INFO) << "Usb AIDL HAL found.";

            if (function == "adb") {

                ret = gadget_aidl->setCurrentUsbFunctions(

                        static_cast<uint64_t>(GadgetFunction::ADB), nullptr, 0, operationId);

            } else {

                LOG(INFO) << "Signal MTP to enable default functions";

                ret = gadget_aidl->setCurrentUsbFunctions(

                        static_cast<uint64_t>(GadgetFunction::MTP), nullptr, 0, operationId);

            }



            if (!ret.isOk()) LOG(ERROR) << "Error while invoking usb hal";

        } else {

            LOG(INFO) << "Usb AIDL HAL not found";

        }

    } else {

        android::sp<android::hardware::usb::gadget::V1_0::IUsbGadget> gadget =

                android::hardware::usb::gadget::V1_0::IUsbGadget::getService();

        Return<void> ret;

        if (gadget != nullptr) {

            LOG(INFO) << "Usb HAL found.";

            if (function == "adb") {

                ret = gadget->setCurrentUsbFunctions(static_cast<uint64_t>(GadgetFunction::ADB),

                                                     nullptr, 0);

            } else {
@@ -56,5 +90,6 @@ int main(int /*argc*/, char** /*argv*/) { 
        } else {

            LOG(INFO) << "Usb HAL not found";

        }

    }

    exit(0);

}