1 files changed, 115 insertions, 0 deletions
diff --git a/usb/gadget/aidl/default/UsbGadget.h b/usb/gadget/aidl/default/UsbGadget.h
new file mode 100644
index 0000000000..4060021acb
--- /dev/null
+++ b/usb/gadget/aidl/default/UsbGadget.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/usb/gadget/BnUsbGadget.h>
+#include <aidl/android/hardware/usb/gadget/BnUsbGadgetCallback.h>
+#include <aidl/android/hardware/usb/gadget/GadgetFunction.h>
+#include <aidl/android/hardware/usb/gadget/IUsbGadget.h>
+#include <aidl/android/hardware/usb/gadget/IUsbGadgetCallback.h>
+#include <android-base/file.h>
+#include <android-base/parseint.h>
+#include <android-base/properties.h>
+#include <android-base/strings.h>
+#include <android-base/unique_fd.h>
+#include <sched.h>
+#include <sys/epoll.h>
+#include <sys/eventfd.h>
+#include <utils/Log.h>
+#include <chrono>
+#include <condition_variable>
+#include <mutex>
+#include <string>
+#include <thread>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace usb {
+namespace gadget {
+
+using ::aidl::android::hardware::usb::gadget::GadgetFunction;
+using ::aidl::android::hardware::usb::gadget::IUsbGadget;
+using ::aidl::android::hardware::usb::gadget::IUsbGadgetCallback;
+using ::aidl::android::hardware::usb::gadget::Status;
+using ::aidl::android::hardware::usb::gadget::UsbSpeed;
+using ::android::base::GetProperty;
+using ::android::base::ParseUint;
+using ::android::base::ReadFileToString;
+using ::android::base::SetProperty;
+using ::android::base::Trim;
+using ::android::base::unique_fd;
+using ::android::base::WriteStringToFile;
+using ::ndk::ScopedAStatus;
+using ::std::shared_ptr;
+using ::std::string;
+
+constexpr char kGadgetName[] = "11110000.dwc3";
+constexpr char kProcInterruptsPath[] = "/proc/interrupts";
+constexpr char kProcIrqPath[] = "/proc/irq/";
+constexpr char kSmpAffinityList[] = "/smp_affinity_list";
+#ifndef UDC_PATH
+#define UDC_PATH "/sys/class/udc/11110000.dwc3/"
+#endif
+// static MonitorFfs monitorFfs(kGadgetName);
+
+#define SPEED_PATH UDC_PATH "current_speed"
+
+#define BIG_CORE "6"
+#define MEDIUM_CORE "4"
+
+#define POWER_SUPPLY_PATH "/sys/class/power_supply/usb/"
+#define USB_PORT0_PATH "/sys/class/typec/port0/"
+
+#define CURRENT_MAX_PATH POWER_SUPPLY_PATH "current_max"
+#define CURRENT_USB_TYPE_PATH POWER_SUPPLY_PATH "usb_type"
+#define CURRENT_USB_POWER_OPERATION_MODE_PATH USB_PORT0_PATH "power_operation_mode"
+
+struct UsbGadget : public BnUsbGadget {
+    UsbGadget();
+
+    // Makes sure that only one request is processed at a time.
+    std::mutex mLockSetCurrentFunction;
+    std::string mGadgetIrqPath;
+    long mCurrentUsbFunctions;
+    bool mCurrentUsbFunctionsApplied;
+    UsbSpeed mUsbSpeed;
+
+    ScopedAStatus setCurrentUsbFunctions(long functions,
+                                         const shared_ptr<IUsbGadgetCallback>& callback,
+                                         int64_t timeout, int64_t in_transactionId) override;
+
+    ScopedAStatus getCurrentUsbFunctions(const shared_ptr<IUsbGadgetCallback>& callback,
+                                         int64_t in_transactionId) override;
+
+    ScopedAStatus reset() override;
+
+    ScopedAStatus getUsbSpeed(const shared_ptr<IUsbGadgetCallback>& callback,
+                              int64_t in_transactionId) override;
+
+  private:
+    Status tearDownGadget();
+    Status getUsbGadgetIrqPath();
+    Status setupFunctions(long functions, const shared_ptr<IUsbGadgetCallback>& callback,
+                          uint64_t timeout, int64_t in_transactionId);
+};
+
+}  // namespace gadget
+}  // namespace usb
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl