ee5795e850
On Windows platforms, wrong function sequnce will cause usb driver installing not working. This patch will modify the function sequence when debug functions are enabled. Bug: 228800277 Test: tethering is working when debug functions are enabled. Change-Id: I9f8b02354617b08a34fb4641ac710f32dabc643e
457 lines
16 KiB
C++
457 lines
16 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@1.2-service.gs201"
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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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namespace android {
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namespace hardware {
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namespace usb {
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namespace gadget {
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namespace V1_2 {
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namespace implementation {
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UsbGadget::UsbGadget() : mGadgetIrqPath("") {
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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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V1_0::Status UsbGadget::getUsbGadgetIrqPath() {
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std::string irqs;
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size_t read_pos = 0;
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size_t found_pos = 0;
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if (!ReadFileToString(kProcInterruptsPath, &irqs)) {
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ALOGE("cannot read all interrupts");
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return Status::ERROR;
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}
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while (true) {
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found_pos = irqs.find_first_of("\n", read_pos);
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if (found_pos == std::string::npos) {
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ALOGI("the string of all interrupts is unexpected");
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return Status::ERROR;
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}
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std::string single_irq = irqs.substr(read_pos, found_pos - read_pos);
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if (single_irq.find("dwc3", 0) != std::string::npos) {
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unsigned int dwc3_irq_number;
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size_t dwc3_pos = single_irq.find_first_of(":");
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if (!ParseUint(single_irq.substr(0, dwc3_pos), &dwc3_irq_number)) {
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ALOGI("unknown IRQ strings");
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return Status::ERROR;
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}
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mGadgetIrqPath = kProcIrqPath + single_irq.substr(0, dwc3_pos) + kSmpAffinityList;
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break;
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}
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if (found_pos == irqs.npos) {
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ALOGI("USB gadget doesn't start");
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return Status::ERROR;
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}
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read_pos = found_pos + 1;
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}
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return Status::SUCCESS;
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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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Return<void> UsbGadget::getCurrentUsbFunctions(const sp<V1_0::IUsbGadgetCallback> &callback) {
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Return<void> ret = callback->getCurrentUsbFunctionsCb(
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mCurrentUsbFunctions,
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mCurrentUsbFunctionsApplied ? Status::FUNCTIONS_APPLIED : Status::FUNCTIONS_NOT_APPLIED);
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if (!ret.isOk())
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ALOGE("Call to getCurrentUsbFunctionsCb failed %s", ret.description().c_str());
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return Void();
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}
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Return<void> UsbGadget::getUsbSpeed(const sp<V1_2::IUsbGadgetCallback> &callback) {
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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::RESERVED_SPEED;
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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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Return<void> ret = callback->getUsbSpeedCb(mUsbSpeed);
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if (!ret.isOk())
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ALOGE("Call to getUsbSpeedCb failed %s", ret.description().c_str());
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}
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return Void();
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}
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V1_0::Status UsbGadget::tearDownGadget() {
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if (resetGadget() != Status::SUCCESS)
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return Status::ERROR;
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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 V1_0::Status validateAndSetVidPid(uint64_t functions) {
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V1_0::Status ret = Status::SUCCESS;
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std::string vendorFunctions = getVendorFunctions();
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switch (functions) {
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case static_cast<uint64_t>(GadgetFunction::MTP):
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if (!(vendorFunctions == "user" || vendorFunctions == "")) {
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = Status::CONFIGURATION_NOT_SUPPORTED;
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} else {
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ret = setVidPid("0x18d1", "0x4ee1");
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}
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break;
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case GadgetFunction::ADB | GadgetFunction::MTP:
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if (!(vendorFunctions == "user" || vendorFunctions == "")) {
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = Status::CONFIGURATION_NOT_SUPPORTED;
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} else {
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ret = setVidPid("0x18d1", "0x4ee2");
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}
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break;
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case static_cast<uint64_t>(GadgetFunction::RNDIS):
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if (!(vendorFunctions == "user" || vendorFunctions == "")) {
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = Status::CONFIGURATION_NOT_SUPPORTED;
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} else {
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ret = setVidPid("0x18d1", "0x4ee3");
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}
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break;
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case GadgetFunction::ADB | GadgetFunction::RNDIS:
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if (vendorFunctions == "dm") {
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ret = setVidPid("0x04e8", "0x6862");
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} else {
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if (!(vendorFunctions == "user" || vendorFunctions == "")) {
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = Status::CONFIGURATION_NOT_SUPPORTED;
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} else {
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ret = setVidPid("0x18d1", "0x4ee4");
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}
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}
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break;
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case static_cast<uint64_t>(GadgetFunction::PTP):
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if (!(vendorFunctions == "user" || vendorFunctions == "")) {
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = Status::CONFIGURATION_NOT_SUPPORTED;
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} else {
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ret = setVidPid("0x18d1", "0x4ee5");
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}
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break;
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case GadgetFunction::ADB | GadgetFunction::PTP:
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if (!(vendorFunctions == "user" || vendorFunctions == "")) {
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = Status::CONFIGURATION_NOT_SUPPORTED;
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} else {
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ret = setVidPid("0x18d1", "0x4ee6");
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}
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break;
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case static_cast<uint64_t>(GadgetFunction::ADB):
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if (vendorFunctions == "dm") {
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ret = setVidPid("0x04e8", "0x6862");
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} else if (vendorFunctions == "etr_miu") {
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ret = setVidPid("0x18d1", "0x4ee2");
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} else if (vendorFunctions == "uwb_acm") {
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ret = setVidPid("0x18d1", "0x4ee2");
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} else {
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if (!(vendorFunctions == "user" || vendorFunctions == "")) {
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = Status::CONFIGURATION_NOT_SUPPORTED;
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} else {
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ret = setVidPid("0x18d1", "0x4ee7");
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}
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}
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break;
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case static_cast<uint64_t>(GadgetFunction::MIDI):
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if (!(vendorFunctions == "user" || vendorFunctions == "")) {
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = Status::CONFIGURATION_NOT_SUPPORTED;
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} else {
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ret = setVidPid("0x18d1", "0x4ee8");
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}
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break;
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case GadgetFunction::ADB | GadgetFunction::MIDI:
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if (!(vendorFunctions == "user" || vendorFunctions == "")) {
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = Status::CONFIGURATION_NOT_SUPPORTED;
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} else {
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ret = setVidPid("0x18d1", "0x4ee9");
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}
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break;
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case static_cast<uint64_t>(GadgetFunction::ACCESSORY):
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if (!(vendorFunctions == "user" || vendorFunctions == ""))
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = setVidPid("0x18d1", "0x2d00");
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break;
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case GadgetFunction::ADB | GadgetFunction::ACCESSORY:
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if (!(vendorFunctions == "user" || vendorFunctions == ""))
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = setVidPid("0x18d1", "0x2d01");
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break;
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case static_cast<uint64_t>(GadgetFunction::AUDIO_SOURCE):
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if (!(vendorFunctions == "user" || vendorFunctions == ""))
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = setVidPid("0x18d1", "0x2d02");
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break;
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case GadgetFunction::ADB | GadgetFunction::AUDIO_SOURCE:
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if (!(vendorFunctions == "user" || vendorFunctions == ""))
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = setVidPid("0x18d1", "0x2d03");
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break;
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case GadgetFunction::ACCESSORY | GadgetFunction::AUDIO_SOURCE:
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if (!(vendorFunctions == "user" || vendorFunctions == ""))
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = setVidPid("0x18d1", "0x2d04");
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break;
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case GadgetFunction::ADB | GadgetFunction::ACCESSORY | GadgetFunction::AUDIO_SOURCE:
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if (!(vendorFunctions == "user" || vendorFunctions == ""))
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = setVidPid("0x18d1", "0x2d05");
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break;
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case static_cast<uint64_t>(GadgetFunction::NCM):
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if (!(vendorFunctions == "user" || vendorFunctions == ""))
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = setVidPid("0x18d1", "0x4eeb");
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break;
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case GadgetFunction::ADB | GadgetFunction::NCM:
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if (vendorFunctions == "dm") {
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ret = setVidPid("0x04e8", "0x6862");
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} else {
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if (!(vendorFunctions == "user" || vendorFunctions == ""))
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ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
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ret = setVidPid("0x18d1", "0x4eec");
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}
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break;
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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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}
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return ret;
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}
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Return<Status> UsbGadget::reset() {
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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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return Status::ERROR;
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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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return Status::ERROR;
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}
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return Status::SUCCESS;
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}
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V1_0::Status UsbGadget::setupFunctions(uint64_t functions,
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const sp<V1_0::IUsbGadgetCallback> &callback,
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uint64_t timeout) {
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bool ffsEnabled = false;
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int i = 0;
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if (addGenericAndroidFunctions(&monitorFfs, functions, &ffsEnabled, &i) !=
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Status::SUCCESS)
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return Status::ERROR;
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std::string vendorFunctions = getVendorFunctions();
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if (((functions & GadgetFunction::NCM) != 0) && (vendorFunctions != "dm")) {
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if (linkFunction("ncm.gs9", i++))
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return Status::ERROR;
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}
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if (vendorFunctions == "dm") {
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ALOGI("enable usbradio debug functions");
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if ((functions & GadgetFunction::RNDIS) != 0) {
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if (linkFunction("acm.gs6", i++))
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return Status::ERROR;
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if (linkFunction("dm.gs7", i++))
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return Status::ERROR;
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} else {
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if (linkFunction("dm.gs7", i++))
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return Status::ERROR;
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if (linkFunction("acm.gs6", i++))
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return Status::ERROR;
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}
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} else if (vendorFunctions == "etr_miu") {
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ALOGI("enable etr_miu functions");
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if (linkFunction("etr_miu.gs11", i++))
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return Status::ERROR;
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} else if (vendorFunctions == "uwb_acm") {
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ALOGI("enable uwb acm function");
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if (linkFunction("acm.uwb0", i++))
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return Status::ERROR;
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}
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if ((functions & GadgetFunction::ADB) != 0) {
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ffsEnabled = true;
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if (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) && (vendorFunctions == "dm")) {
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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);
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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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Return<void> ret = callback->setCurrentUsbFunctionsCb(
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functions, pullup ? Status::SUCCESS : Status::ERROR);
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if (!ret.isOk())
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ALOGE("setCurrentUsbFunctionsCb error %s", ret.description().c_str());
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}
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return Status::SUCCESS;
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}
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Return<void> UsbGadget::setCurrentUsbFunctions(uint64_t functions,
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const sp<V1_0::IUsbGadgetCallback> &callback,
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uint64_t timeout) {
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std::unique_lock<std::mutex> lk(mLockSetCurrentFunction);
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mCurrentUsbFunctions = functions;
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mCurrentUsbFunctionsApplied = false;
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// Get the gadget IRQ number before tearDownGadget()
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if (mGadgetIrqPath.empty())
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getUsbGadgetIrqPath();
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// Unlink the gadget and stop the monitor if running.
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V1_0::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 == static_cast<uint64_t>(GadgetFunction::NONE)) {
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if (callback == NULL)
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return Void();
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Return<void> ret = callback->setCurrentUsbFunctionsCb(functions, Status::SUCCESS);
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if (!ret.isOk())
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ALOGE("Error while calling setCurrentUsbFunctionsCb %s", ret.description().c_str());
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return Void();
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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);
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if (status != Status::SUCCESS) {
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goto error;
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}
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if (functions & GadgetFunction::NCM) {
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if (!mGadgetIrqPath.empty()) {
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if (!WriteStringToFile(BIG_CORE, mGadgetIrqPath))
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ALOGI("Cannot move gadget IRQ to big core, path:%s", mGadgetIrqPath.c_str());
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}
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} else {
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if (!mGadgetIrqPath.empty()) {
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if (!WriteStringToFile(MEDIUM_CORE, mGadgetIrqPath))
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ALOGI("Cannot move gadget IRQ to medium core, path:%s", mGadgetIrqPath.c_str());
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}
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}
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ALOGI("Usb Gadget setcurrent functions called successfully");
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return Void();
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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 Void();
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Return<void> ret = callback->setCurrentUsbFunctionsCb(functions, status);
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if (!ret.isOk())
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ALOGE("Error while calling setCurrentUsbFunctionsCb %s", ret.description().c_str());
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return Void();
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}
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} // namespace implementation
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} // namespace V1_2
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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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