79 lines
2.9 KiB
C
79 lines
2.9 KiB
C
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/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef HARDWARE_GOOGLE_PIXEL_USB_UTILSCOMMON_H_
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#define HARDWARE_GOOGLE_PIXEL_USB_UTILSCOMMON_H_
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#include <android-base/unique_fd.h>
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#include <string>
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namespace android {
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namespace hardware {
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namespace google {
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namespace pixel {
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namespace usb {
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constexpr int kBufferSize = 512;
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constexpr int kMaxFilePathLength = 256;
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constexpr int kEpollEvents = 10;
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constexpr bool kDebug = false;
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constexpr int kDisconnectWaitUs = 100000;
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constexpr int kPullUpDelay = 500000;
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constexpr int kShutdownMonitor = 100;
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constexpr char kBuildType[] = "ro.build.type";
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constexpr char kPersistentVendorConfig[] = "persist.vendor.usb.usbradio.config";
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constexpr char kVendorConfig[] = "vendor.usb.config";
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constexpr char kVendorRndisConfig[] = "vendor.usb.rndis.config";
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constexpr char kUvcEnabled[] = "ro.usb.uvc.enabled";
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#define GADGET_PATH "/config/usb_gadget/g1/"
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#define PULLUP_PATH GADGET_PATH "UDC"
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#define PERSISTENT_BOOT_MODE "ro.bootmode"
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#define VENDOR_ID_PATH GADGET_PATH "idVendor"
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#define PRODUCT_ID_PATH GADGET_PATH "idProduct"
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#define DEVICE_CLASS_PATH GADGET_PATH "bDeviceClass"
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#define DEVICE_SUB_CLASS_PATH GADGET_PATH "bDeviceSubClass"
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#define DEVICE_PROTOCOL_PATH GADGET_PATH "bDeviceProtocol"
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#define DESC_USE_PATH GADGET_PATH "os_desc/use"
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#define OS_DESC_PATH GADGET_PATH "os_desc/b.1"
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#define CONFIG_PATH GADGET_PATH "configs/b.1/"
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#define FUNCTIONS_PATH GADGET_PATH "functions/"
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#define FUNCTION_NAME "function"
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#define FUNCTION_PATH CONFIG_PATH FUNCTION_NAME
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#define RNDIS_PATH FUNCTIONS_PATH "gsi.rndis"
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// Adds the given fd to the epollfd(epfd).
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int addEpollFd(const ::android::base::unique_fd &epfd, const ::android::base::unique_fd &fd);
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// Extracts vendor functions from the vendor init properties.
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std::string getVendorFunctions();
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// Removes all the usb functions link in the specified path.
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int unlinkFunctions(const char *path);
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// Creates a configfs link for the function.
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int linkFunction(const char *function, int index);
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// Sets the USB VID and PID. Returns true on success, false on failure
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bool setVidPidCommon(const char *vid, const char *pid);
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// Pulls down USB gadget. Returns true on success, false on failure
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bool resetGadgetCommon();
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} // namespace usb
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} // namespace pixel
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} // namespace google
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} // namespace hardware
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} // namespace android
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#endif // HARDWARE_GOOGLE_PIXEL_USB_UTILSCOMMON_H_
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