mirror of
https://github.com/Evolution-X-Devices/device_xiaomi_rosemary
synced 2026-01-27 13:35:09 +00:00
1c5d75b9bd
Change-Id: If5c7e7b98c4e130d1cb57a4a4168abc05d547e5d Signed-off-by: bengris32 <bengris32@protonmail.ch>
386 lines
12 KiB
C++
386 lines
12 KiB
C++
/*
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* Copyright (C) 2020 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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#define LOG_TAG "android.hardware.usb.gadget.aidl-service"
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#include "UsbGadget.h"
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#include <dirent.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <sys/inotify.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <android-base/properties.h>
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#include <aidl/android/frameworks/stats/IStats.h>
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namespace aidl {
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namespace android {
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namespace hardware {
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namespace usb {
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namespace gadget {
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string enabledPath;
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using ::android::base::GetBoolProperty;
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using ::android::hardware::google::pixel::usb::kUvcEnabled;
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UsbGadget::UsbGadget() {
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if (access(OS_DESC_PATH, R_OK) != 0) {
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ALOGE("configfs setup not done yet");
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abort();
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}
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}
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void currentFunctionsAppliedCallback(bool functionsApplied, void *payload) {
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UsbGadget *gadget = (UsbGadget *)payload;
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gadget->mCurrentUsbFunctionsApplied = functionsApplied;
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}
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ScopedAStatus UsbGadget::getCurrentUsbFunctions(const shared_ptr<IUsbGadgetCallback> &callback,
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int64_t in_transactionId) {
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ScopedAStatus ret = callback->getCurrentUsbFunctionsCb(
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mCurrentUsbFunctions,
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mCurrentUsbFunctionsApplied ? Status::FUNCTIONS_APPLIED : Status::FUNCTIONS_NOT_APPLIED,
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in_transactionId);
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if (!ret.isOk())
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ALOGE("Call to getCurrentUsbFunctionsCb failed %s", ret.getDescription().c_str());
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return ScopedAStatus::ok();
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}
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ScopedAStatus UsbGadget::getUsbSpeed(const shared_ptr<IUsbGadgetCallback> &callback,
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int64_t in_transactionId) {
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std::string current_speed;
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if (ReadFileToString(SPEED_PATH, ¤t_speed)) {
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current_speed = Trim(current_speed);
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ALOGI("current USB speed is %s", current_speed.c_str());
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if (current_speed == "low-speed")
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mUsbSpeed = UsbSpeed::LOWSPEED;
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else if (current_speed == "full-speed")
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mUsbSpeed = UsbSpeed::FULLSPEED;
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else if (current_speed == "high-speed")
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mUsbSpeed = UsbSpeed::HIGHSPEED;
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else if (current_speed == "super-speed")
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mUsbSpeed = UsbSpeed::SUPERSPEED;
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else if (current_speed == "super-speed-plus")
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mUsbSpeed = UsbSpeed::SUPERSPEED_10Gb;
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else if (current_speed == "UNKNOWN")
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mUsbSpeed = UsbSpeed::UNKNOWN;
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else
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mUsbSpeed = UsbSpeed::UNKNOWN;
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} else {
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ALOGE("Fail to read current speed");
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mUsbSpeed = UsbSpeed::UNKNOWN;
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}
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if (callback) {
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ScopedAStatus ret = callback->getUsbSpeedCb(mUsbSpeed, in_transactionId);
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if (!ret.isOk())
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ALOGE("Call to getUsbSpeedCb failed %s", ret.getDescription().c_str());
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}
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return ScopedAStatus::ok();
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}
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Status UsbGadget::tearDownGadget() {
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if (Status(resetGadget()) != Status::SUCCESS){
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return Status::ERROR;
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}
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if (monitorFfs.isMonitorRunning()) {
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monitorFfs.reset();
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} else {
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ALOGI("mMonitor not running");
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}
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return Status::SUCCESS;
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}
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static Status validateAndSetVidPid(int64_t functions) {
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Status ret;
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const char *vid, *pid;
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std::string saving;
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switch (functions) {
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case GadgetFunction::MTP:
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vid = "0x2717";
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pid = "0xFF40";
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saving = "2";
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break;
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case GadgetFunction::ADB |
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GadgetFunction::MTP:
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vid = "0x2717";
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pid = "0xFF48";
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break;
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case GadgetFunction::RNDIS:
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vid = "0x2717";
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pid = "0xFF80";
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break;
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case GadgetFunction::ADB |
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GadgetFunction::RNDIS:
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vid = "0x2717";
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pid = "0xFF88";
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break;
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case GadgetFunction::PTP:
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vid = "0x2717";
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pid = "0xFF10";
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saving = "2";
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break;
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case GadgetFunction::ADB |
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GadgetFunction::PTP:
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vid = "0x2717";
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pid = "0xFF18";
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break;
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case GadgetFunction::ADB:
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vid = "0x2717";
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pid = "0xFF08";
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break;
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case GadgetFunction::MIDI:
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vid = "0x2717";
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pid = "0x2046";
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break;
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case GadgetFunction::ADB |
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GadgetFunction::MIDI:
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vid = "0x2717";
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pid = "0x2048";
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break;
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case GadgetFunction::ACCESSORY:
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vid = "0x18d1";
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pid = "0x2d00";
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break;
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case GadgetFunction::ADB |
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GadgetFunction::ACCESSORY:
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vid = "0x18d1";
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pid = "0x2d01";
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break;
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case GadgetFunction::AUDIO_SOURCE:
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vid = "0x18d1";
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pid = "0x2d02";
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break;
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case GadgetFunction::ADB |
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GadgetFunction::AUDIO_SOURCE:
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vid = "0x18d1";
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pid = "0x2d03";
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break;
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case GadgetFunction::ACCESSORY |
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GadgetFunction::AUDIO_SOURCE:
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vid = "0x18d1";
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pid = "0x2d04";
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break;
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case GadgetFunction::ADB |
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GadgetFunction::ACCESSORY |
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GadgetFunction::AUDIO_SOURCE:
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vid = "0x18d1";
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pid = "0x2d05";
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break;
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case GadgetFunction::NCM:
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vid = "0x2717";
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pid = "0x2067";
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break;
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case GadgetFunction::ADB |
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GadgetFunction::NCM:
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vid = "0x2717";
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pid = "0x206A";
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break;
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/*
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* There are no known MediaTek devices that implement the
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* device as webcam feature, so for the following functions
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* we use Google's vid/pid.
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* =======================================================
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* TODO: 4.14's UVC function is not compatible with AOSP's
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* device as webcam service.
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* =======================================================
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case GadgetFunction::UVC:
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vid = "0x18d1";
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pid = "0x4eed";
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break;
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case GadgetFunction::ADB | GadgetFunction::UVC:
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vid = "0x18d1";
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pid = "0x4eee";
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break;
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*/
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default:
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ALOGE("Combination not supported");
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ret = Status::CONFIGURATION_NOT_SUPPORTED;
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goto error;
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}
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ret = Status(setVidPid(vid, pid));
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if (ret != Status::SUCCESS) {
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ALOGE("Failed to update vid/pid");
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goto error;
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}
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if (!saving.empty()) {
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if (!WriteStringToFile(saving, SAVING_PATH)) {
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ALOGW("Failed to update saving state");
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}
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}
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error:
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return ret;
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}
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ScopedAStatus UsbGadget::reset(const shared_ptr<IUsbGadgetCallback> &callback,
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int64_t in_transactionId) {
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ALOGI("USB Gadget reset");
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if (!WriteStringToFile("none", PULLUP_PATH)) {
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ALOGI("Gadget cannot be pulled down");
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if (callback)
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callback->resetCb(Status::ERROR, in_transactionId);
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return ScopedAStatus::fromServiceSpecificErrorWithMessage(
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-1, "Gadget cannot be pulled down");
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}
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usleep(kDisconnectWaitUs);
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if (!WriteStringToFile(kGadgetName, PULLUP_PATH)) {
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ALOGI("Gadget cannot be pulled up");
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if (callback)
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callback->resetCb(Status::ERROR, in_transactionId);
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return ScopedAStatus::fromServiceSpecificErrorWithMessage(
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-1, "Gadget cannot be pulled up");
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}
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if (callback)
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callback->resetCb(Status::SUCCESS, in_transactionId);
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return ScopedAStatus::ok();
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}
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Status UsbGadget::setupFunctions(long functions,
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const shared_ptr<IUsbGadgetCallback> &callback, uint64_t timeout,
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int64_t in_transactionId) {
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bool ffsEnabled = false;
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int i = 0;
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if (Status(addGenericAndroidFunctions(&monitorFfs, functions, &ffsEnabled, &i)) !=
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Status::SUCCESS)
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return Status::ERROR;
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if ((functions & GadgetFunction::ADB) != 0) {
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ffsEnabled = true;
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if (Status(addAdb(&monitorFfs, &i)) != Status::SUCCESS)
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return Status::ERROR;
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}
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if ((functions & GadgetFunction::NCM) != 0) {
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ALOGI("setCurrentUsbFunctions ncm");
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if (linkFunction("ncm.gs9", i++))
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return Status::ERROR;
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}
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// Pull up the gadget right away when there are no ffs functions.
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if (!ffsEnabled) {
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if (!WriteStringToFile(kGadgetName, PULLUP_PATH))
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return Status::ERROR;
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mCurrentUsbFunctionsApplied = true;
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if (callback)
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callback->setCurrentUsbFunctionsCb(functions, Status::SUCCESS, in_transactionId);
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return Status::SUCCESS;
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}
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monitorFfs.registerFunctionsAppliedCallback(¤tFunctionsAppliedCallback, this);
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// Monitors the ffs paths to pull up the gadget when descriptors are written.
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// Also takes of the pulling up the gadget again if the userspace process
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// dies and restarts.
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monitorFfs.startMonitor();
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if (kDebug)
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ALOGI("Mainthread in Cv");
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if (callback) {
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bool pullup = monitorFfs.waitForPullUp(timeout);
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ScopedAStatus ret = callback->setCurrentUsbFunctionsCb(
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functions, pullup ? Status::SUCCESS : Status::ERROR, in_transactionId);
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if (!ret.isOk()) {
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ALOGE("setCurrentUsbFunctionsCb error %s", ret.getDescription().c_str());
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return Status::ERROR;
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}
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}
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return Status::SUCCESS;
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}
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ScopedAStatus UsbGadget::setCurrentUsbFunctions(long functions,
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const shared_ptr<IUsbGadgetCallback> &callback,
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int64_t timeout,
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int64_t in_transactionId) {
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std::unique_lock<std::mutex> lk(mLockSetCurrentFunction);
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std::string current_usb_power_operation_mode, current_usb_type;
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std::string usb_limit_sink_enable;
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mCurrentUsbFunctions = functions;
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mCurrentUsbFunctionsApplied = false;
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// Unlink the gadget and stop the monitor if running.
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Status status = tearDownGadget();
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if (status != Status::SUCCESS) {
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goto error;
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}
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ALOGI("Returned from tearDown gadget");
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// Leave the gadget pulled down to give time for the host to sense disconnect.
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usleep(kDisconnectWaitUs);
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if (functions == GadgetFunction::NONE) {
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// Make sure we reset saving state if there are no functions enabled.
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if (!WriteStringToFile("0", SAVING_PATH))
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ALOGW("Failed to reset saving state");
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if (callback == NULL)
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return ScopedAStatus::fromServiceSpecificErrorWithMessage(
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-1, "callback == NULL");
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ScopedAStatus ret = callback->setCurrentUsbFunctionsCb(functions, status, in_transactionId);
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if (!ret.isOk())
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ALOGE("Error while calling setCurrentUsbFunctionsCb %s", ret.getDescription().c_str());
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return ScopedAStatus::fromServiceSpecificErrorWithMessage(
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-1, "Error while calling setCurrentUsbFunctionsCb");
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}
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status = validateAndSetVidPid(functions);
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if (status != Status::SUCCESS) {
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goto error;
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}
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status = setupFunctions(functions, callback, timeout, in_transactionId);
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if (status != Status::SUCCESS) {
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goto error;
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}
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ALOGI("Usb Gadget setcurrent functions called successfully");
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return ScopedAStatus::ok();
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error:
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ALOGI("Usb Gadget setcurrent functions failed");
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if (callback == NULL)
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return ScopedAStatus::fromServiceSpecificErrorWithMessage(
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-1, "Usb Gadget setcurrent functions failed");
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ScopedAStatus ret = callback->setCurrentUsbFunctionsCb(functions, status, in_transactionId);
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if (!ret.isOk())
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ALOGE("Error while calling setCurrentUsbFunctionsCb %s", ret.getDescription().c_str());
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return ScopedAStatus::fromServiceSpecificErrorWithMessage(
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-1, "Error while calling setCurrentUsbFunctionsCb");
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}
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} // namespace gadget
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} // namespace usb
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} // namespace hardware
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} // namespace android
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} // aidl
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