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/*
* Copyright (C) 2023 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.
*/
#ifndef HARDWARE_GOOGLE_PIXEL_USB_UTILSCOMMON_H_
#define HARDWARE_GOOGLE_PIXEL_USB_UTILSCOMMON_H_
#include <android-base/unique_fd.h>
#include <hardware/google/pixel/pixelstats/pixelatoms.pb.h>
#include <string>
namespace android {
namespace hardware {
namespace google {
namespace pixel {
namespace usb {
constexpr int kBufferSize = 512;
constexpr int kMaxFilePathLength = 256;
constexpr int kEpollEvents = 10;
constexpr bool kDebug = false;
constexpr int kDisconnectWaitUs = 100000;
constexpr int kPullUpDelay = 500000;
constexpr int kShutdownMonitor = 100;
constexpr char kBuildType[] = "ro.build.type";
constexpr char kPersistentVendorConfig[] = "persist.vendor.usb.usbradio.config";
constexpr char kVendorConfig[] = "vendor.usb.config";
constexpr char kVendorRndisConfig[] = "vendor.usb.rndis.config";
constexpr char kUvcEnabled[] = "ro.usb.uvc.enabled";
#define GADGET_PATH "/config/usb_gadget/g1/"
#define PULLUP_PATH GADGET_PATH "UDC"
#define PERSISTENT_BOOT_MODE "ro.bootmode"
#define VENDOR_ID_PATH GADGET_PATH "idVendor"
#define PRODUCT_ID_PATH GADGET_PATH "idProduct"
#define DEVICE_CLASS_PATH GADGET_PATH "bDeviceClass"
#define DEVICE_SUB_CLASS_PATH GADGET_PATH "bDeviceSubClass"
#define DEVICE_PROTOCOL_PATH GADGET_PATH "bDeviceProtocol"
#define DESC_USE_PATH GADGET_PATH "os_desc/use"
#define OS_DESC_PATH GADGET_PATH "os_desc/b.1"
#define CONFIG_PATH GADGET_PATH "configs/b.1/"
#define FUNCTIONS_PATH GADGET_PATH "functions/"
#define FUNCTION_NAME "function"
#define FUNCTION_PATH CONFIG_PATH FUNCTION_NAME
#define RNDIS_PATH FUNCTIONS_PATH "gsi.rndis"
using android::hardware::google::pixel::PixelAtoms::VendorUsbDataSessionEvent;
using ::std::chrono::steady_clock;
// Adds the given fd to the epollfd(epfd).
int addEpollFd(const ::android::base::unique_fd &epfd, const ::android::base::unique_fd &fd);
// Extracts vendor functions from the vendor init properties.
std::string getVendorFunctions();
// Removes all the usb functions link in the specified path.
int unlinkFunctions(const char *path);
// Creates a configfs link for the function.
int linkFunction(const char *function, int index);
// Sets the USB VID and PID. Returns true on success, false on failure
bool setVidPidCommon(const char *vid, const char *pid);
// Pulls down USB gadget. Returns true on success, false on failure
bool resetGadgetCommon();
void BuildVendorUsbDataSessionEvent(bool is_host, steady_clock::time_point currentTime,
steady_clock::time_point startTime,
std::vector<std::string> *states,
std::vector<steady_clock::time_point> *timestamps,
VendorUsbDataSessionEvent *event);
} // namespace usb
} // namespace pixel
} // namespace google
} // namespace hardware
} // namespace android
#endif // HARDWARE_GOOGLE_PIXEL_USB_UTILSCOMMON_H_
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