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Migrate IUsb implementation to AIDL

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This change migrates IUsb implementation to AIDL.
Also, IUsb and IUsbGadget now run in its own processes
to improve stability and isolation.

Bug: 200993386
Bug: 199357330
Change-Id: I02753af4a41916b77ce110f9531504bf8c6a4691
This commit is contained in:
Badhri Jagan Sridharan 2022-01-17 20:43:02 -08:00
parent db9e401c24
commit 3c97a6bb68
14 changed files with 1001 additions and 1028 deletions
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52
usb/gadget/Android.bp Normal file
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//
// Copyright (C) 2021 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.
package {
// See: http://go/android-license-faq
// A large-scale-change added 'default_applicable_licenses' to import
// all of the 'license_kinds' from "//device/google/gs101:device_google_gs101_license"
// to get the below license kinds:
// SPDX-license-identifier-Apache-2.0
default_applicable_licenses: [
"//device/google/gs101:device_google_gs101_license",
],
}
cc_binary {
name: "android.hardware.usb.gadget-service.gs101",
relative_install_path: "hw",
init_rc: ["android.hardware.usb.gadget-service.gs101.rc"],
vintf_fragments: [
"android.hardware.usb.gadget@1.2-service.gs101.xml",
],
srcs: ["service_gadget.cpp", "UsbGadget.cpp"],
cflags: ["-Wall", "-Werror"],
shared_libs: [
"libbase",
"libbinder",
"libhidlbase",
"liblog",
"libutils",
"libhardware",
"android.hardware.usb.gadget@1.0",
"android.hardware.usb.gadget@1.1",
"android.hardware.usb.gadget@1.2",
"libcutils",
],
static_libs: [
"libpixelusb",
],
proprietary: true,
}

403
usb/gadget/UsbGadget.cpp Normal file
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/*
* 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.
*/
#define LOG_TAG "android.hardware.usb.gadget@1.2-service.gs101"
#include "UsbGadget.h"
#include <dirent.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/inotify.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
namespace android {
namespace hardware {
namespace usb {
namespace gadget {
namespace V1_2 {
namespace implementation {
UsbGadget::UsbGadget() {
if (access(OS_DESC_PATH, R_OK) != 0) {
ALOGE("configfs setup not done yet");
abort();
}
}
void currentFunctionsAppliedCallback(bool functionsApplied, void *payload) {
UsbGadget *gadget = (UsbGadget *)payload;
gadget->mCurrentUsbFunctionsApplied = functionsApplied;
}
Return<void> UsbGadget::getCurrentUsbFunctions(const sp<V1_0::IUsbGadgetCallback> &callback) {
Return<void> ret = callback->getCurrentUsbFunctionsCb(
mCurrentUsbFunctions,
mCurrentUsbFunctionsApplied ? Status::FUNCTIONS_APPLIED : Status::FUNCTIONS_NOT_APPLIED);
if (!ret.isOk())
ALOGE("Call to getCurrentUsbFunctionsCb failed %s", ret.description().c_str());
return Void();
}
Return<void> UsbGadget::getUsbSpeed(const sp<V1_2::IUsbGadgetCallback> &callback) {
std::string current_speed;
if (ReadFileToString(SPEED_PATH, &current_speed)) {
current_speed = Trim(current_speed);
ALOGI("current USB speed is %s", current_speed.c_str());
if (current_speed == "low-speed")
mUsbSpeed = UsbSpeed::LOWSPEED;
else if (current_speed == "full-speed")
mUsbSpeed = UsbSpeed::FULLSPEED;
else if (current_speed == "high-speed")
mUsbSpeed = UsbSpeed::HIGHSPEED;
else if (current_speed == "super-speed")
mUsbSpeed = UsbSpeed::SUPERSPEED;
else if (current_speed == "super-speed-plus")
mUsbSpeed = UsbSpeed::SUPERSPEED_10Gb;
else if (current_speed == "UNKNOWN")
mUsbSpeed = UsbSpeed::UNKNOWN;
else
mUsbSpeed = UsbSpeed::RESERVED_SPEED;
} else {
ALOGE("Fail to read current speed");
mUsbSpeed = UsbSpeed::UNKNOWN;
}
if (callback) {
Return<void> ret = callback->getUsbSpeedCb(mUsbSpeed);
if (!ret.isOk())
ALOGE("Call to getUsbSpeedCb failed %s", ret.description().c_str());
}
return Void();
}
V1_0::Status UsbGadget::tearDownGadget() {
if (resetGadget() != Status::SUCCESS)
return Status::ERROR;
if (monitorFfs.isMonitorRunning()) {
monitorFfs.reset();
} else {
ALOGI("mMonitor not running");
}
return Status::SUCCESS;
}
static V1_0::Status validateAndSetVidPid(uint64_t functions) {
V1_0::Status ret = Status::SUCCESS;
std::string vendorFunctions = getVendorFunctions();
switch (functions) {
case static_cast<uint64_t>(GadgetFunction::MTP):
if (!(vendorFunctions == "user" || vendorFunctions == "")) {
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = Status::CONFIGURATION_NOT_SUPPORTED;
} else {
ret = setVidPid("0x18d1", "0x4ee1");
}
break;
case GadgetFunction::ADB | GadgetFunction::MTP:
if (!(vendorFunctions == "user" || vendorFunctions == "")) {
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = Status::CONFIGURATION_NOT_SUPPORTED;
} else {
ret = setVidPid("0x18d1", "0x4ee2");
}
break;
case static_cast<uint64_t>(GadgetFunction::RNDIS):
case GadgetFunction::RNDIS | GadgetFunction::NCM:
if (!(vendorFunctions == "user" || vendorFunctions == "")) {
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = Status::CONFIGURATION_NOT_SUPPORTED;
} else {
ret = setVidPid("0x18d1", "0x4ee3");
}
break;
case GadgetFunction::ADB | GadgetFunction::RNDIS:
case GadgetFunction::ADB | GadgetFunction::RNDIS | GadgetFunction::NCM:
if (vendorFunctions == "dm") {
ret = setVidPid("0x04e8", "0x6862");
} else {
if (!(vendorFunctions == "user" || vendorFunctions == "")) {
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = Status::CONFIGURATION_NOT_SUPPORTED;
} else {
ret = setVidPid("0x18d1", "0x4ee4");
}
}
break;
case static_cast<uint64_t>(GadgetFunction::PTP):
if (!(vendorFunctions == "user" || vendorFunctions == "")) {
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = Status::CONFIGURATION_NOT_SUPPORTED;
} else {
ret = setVidPid("0x18d1", "0x4ee5");
}
break;
case GadgetFunction::ADB | GadgetFunction::PTP:
if (!(vendorFunctions == "user" || vendorFunctions == "")) {
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = Status::CONFIGURATION_NOT_SUPPORTED;
} else {
ret = setVidPid("0x18d1", "0x4ee6");
}
break;
case static_cast<uint64_t>(GadgetFunction::ADB):
if (vendorFunctions == "dm") {
ret = setVidPid("0x04e8", "0x6862");
} else if (vendorFunctions == "etr_miu") {
ret = setVidPid("0x18d1", "0x4ee2");
} else if (vendorFunctions == "uwb_acm"){
ret = setVidPid("0x18d1", "0x4ee2");
} else {
if (!(vendorFunctions == "user" || vendorFunctions == "")) {
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = Status::CONFIGURATION_NOT_SUPPORTED;
} else {
ret = setVidPid("0x18d1", "0x4ee7");
}
}
break;
case static_cast<uint64_t>(GadgetFunction::MIDI):
if (!(vendorFunctions == "user" || vendorFunctions == "")) {
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = Status::CONFIGURATION_NOT_SUPPORTED;
} else {
ret = setVidPid("0x18d1", "0x4ee8");
}
break;
case GadgetFunction::ADB | GadgetFunction::MIDI:
if (!(vendorFunctions == "user" || vendorFunctions == "")) {
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = Status::CONFIGURATION_NOT_SUPPORTED;
} else {
ret = setVidPid("0x18d1", "0x4ee9");
}
break;
case static_cast<uint64_t>(GadgetFunction::ACCESSORY):
if (!(vendorFunctions == "user" || vendorFunctions == ""))
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = setVidPid("0x18d1", "0x2d00");
break;
case GadgetFunction::ADB | GadgetFunction::ACCESSORY:
if (!(vendorFunctions == "user" || vendorFunctions == ""))
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = setVidPid("0x18d1", "0x2d01");
break;
case static_cast<uint64_t>(GadgetFunction::AUDIO_SOURCE):
if (!(vendorFunctions == "user" || vendorFunctions == ""))
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = setVidPid("0x18d1", "0x2d02");
break;
case GadgetFunction::ADB | GadgetFunction::AUDIO_SOURCE:
if (!(vendorFunctions == "user" || vendorFunctions == ""))
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = setVidPid("0x18d1", "0x2d03");
break;
case GadgetFunction::ACCESSORY | GadgetFunction::AUDIO_SOURCE:
if (!(vendorFunctions == "user" || vendorFunctions == ""))
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = setVidPid("0x18d1", "0x2d04");
break;
case GadgetFunction::ADB | GadgetFunction::ACCESSORY | GadgetFunction::AUDIO_SOURCE:
if (!(vendorFunctions == "user" || vendorFunctions == ""))
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = setVidPid("0x18d1", "0x2d05");
break;
case static_cast<uint64_t>(GadgetFunction::NCM):
if (!(vendorFunctions == "user" || vendorFunctions == ""))
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = setVidPid("0x18d1", "0x4eeb");
break;
case GadgetFunction::ADB | GadgetFunction::NCM:
if (vendorFunctions == "dm") {
ret = setVidPid("0x04e8", "0x6862");
} else {
if (!(vendorFunctions == "user" || vendorFunctions == ""))
ALOGE("Invalid vendorFunctions set: %s", vendorFunctions.c_str());
ret = setVidPid("0x18d1", "0x4eec");
}
break;
default:
ALOGE("Combination not supported");
ret = Status::CONFIGURATION_NOT_SUPPORTED;
}
return ret;
}
Return<Status> UsbGadget::reset() {
ALOGI("USB Gadget reset");
if (!WriteStringToFile("none", PULLUP_PATH)) {
ALOGI("Gadget cannot be pulled down");
return Status::ERROR;
}
usleep(kDisconnectWaitUs);
if (!WriteStringToFile(kGadgetName, PULLUP_PATH)) {
ALOGI("Gadget cannot be pulled up");
return Status::ERROR;
}
return Status::SUCCESS;
}
V1_0::Status UsbGadget::setupFunctions(uint64_t functions,
const sp<V1_0::IUsbGadgetCallback> &callback,
uint64_t timeout) {
bool ffsEnabled = false;
int i = 0;
if (addGenericAndroidFunctions(&monitorFfs, functions, &ffsEnabled, &i) !=
Status::SUCCESS)
return Status::ERROR;
std::string vendorFunctions = getVendorFunctions();
if (vendorFunctions == "dm") {
ALOGI("enable usbradio debug functions");
if ((functions & GadgetFunction::RNDIS) != 0) {
if (linkFunction("acm.gs6", i++))
return Status::ERROR;
if (linkFunction("dm.gs7", i++))
return Status::ERROR;
} else {
if (linkFunction("dm.gs7", i++))
return Status::ERROR;
if (linkFunction("acm.gs6", i++))
return Status::ERROR;
}
} else if (vendorFunctions == "etr_miu") {
ALOGI("enable etr_miu functions");
if (linkFunction("etr_miu.gs11", i++))
return Status::ERROR;
} else if (vendorFunctions == "uwb_acm") {
ALOGI("enable uwb acm function");
if (linkFunction("acm.uwb0", i++))
return Status::ERROR;
}
if ((functions & GadgetFunction::ADB) != 0) {
ffsEnabled = true;
if (addAdb(&monitorFfs, &i) != Status::SUCCESS)
return Status::ERROR;
}
if ((functions & GadgetFunction::NCM) != 0) {
ALOGI("setCurrentUsbFunctions ncm");
if (linkFunction("ncm.gs9", i++))
return Status::ERROR;
}
// Pull up the gadget right away when there are no ffs functions.
if (!ffsEnabled) {
if (!WriteStringToFile(kGadgetName, PULLUP_PATH))
return Status::ERROR;
mCurrentUsbFunctionsApplied = true;
if (callback)
callback->setCurrentUsbFunctionsCb(functions, Status::SUCCESS);
return Status::SUCCESS;
}
monitorFfs.registerFunctionsAppliedCallback(&currentFunctionsAppliedCallback, this);
// Monitors the ffs paths to pull up the gadget when descriptors are written.
// Also takes of the pulling up the gadget again if the userspace process
// dies and restarts.
monitorFfs.startMonitor();
if (kDebug)
ALOGI("Mainthread in Cv");
if (callback) {
bool pullup = monitorFfs.waitForPullUp(timeout);
Return<void> ret = callback->setCurrentUsbFunctionsCb(
functions, pullup ? Status::SUCCESS : Status::ERROR);
if (!ret.isOk())
ALOGE("setCurrentUsbFunctionsCb error %s", ret.description().c_str());
}
return Status::SUCCESS;
}
Return<void> UsbGadget::setCurrentUsbFunctions(uint64_t functions,
const sp<V1_0::IUsbGadgetCallback> &callback,
uint64_t timeout) {
std::unique_lock<std::mutex> lk(mLockSetCurrentFunction);
mCurrentUsbFunctions = functions;
mCurrentUsbFunctionsApplied = false;
// Unlink the gadget and stop the monitor if running.
V1_0::Status status = tearDownGadget();
if (status != Status::SUCCESS) {
goto error;
}
ALOGI("Returned from tearDown gadget");
// Leave the gadget pulled down to give time for the host to sense disconnect.
usleep(kDisconnectWaitUs);
if (functions == static_cast<uint64_t>(GadgetFunction::NONE)) {
if (callback == NULL)
return Void();
Return<void> ret = callback->setCurrentUsbFunctionsCb(functions, Status::SUCCESS);
if (!ret.isOk())
ALOGE("Error while calling setCurrentUsbFunctionsCb %s", ret.description().c_str());
return Void();
}
status = validateAndSetVidPid(functions);
if (status != Status::SUCCESS) {
goto error;
}
status = setupFunctions(functions, callback, timeout);
if (status != Status::SUCCESS) {
goto error;
}
if (functions & GadgetFunction::NCM) {
SetProperty("vendor.usb.dwc3_irq", "big");
} else {
SetProperty("vendor.usb.dwc3_irq", "medium");
}
ALOGI("Usb Gadget setcurrent functions called successfully");
return Void();
error:
ALOGI("Usb Gadget setcurrent functions failed");
if (callback == NULL)
return Void();
Return<void> ret = callback->setCurrentUsbFunctionsCb(functions, status);
if (!ret.isOk())
ALOGE("Error while calling setCurrentUsbFunctionsCb %s", ret.description().c_str());
return Void();
}
} // namespace implementation
} // namespace V1_2
} // namespace gadget
} // namespace usb
} // namespace hardware
} // namespace android

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/*
* 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 <android-base/file.h>
#include <android-base/properties.h>
#include <android-base/unique_fd.h>
#include <android-base/strings.h>
#include <android/hardware/usb/gadget/1.2/IUsbGadget.h>
#include <android/hardware/usb/gadget/1.2/types.h>
#include <hidl/MQDescriptor.h>
#include <hidl/Status.h>
#include <pixelusb/UsbGadgetCommon.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 android {
namespace hardware {
namespace usb {
namespace gadget {
namespace V1_2 {
namespace implementation {
using ::android::sp;
using ::android::base::GetProperty;
using ::android::base::SetProperty;
using ::android::base::unique_fd;
using ::android::base::ReadFileToString;
using ::android::base::Trim;
using ::android::base::WriteStringToFile;
using ::android::hardware::hidl_array;
using ::android::hardware::hidl_memory;
using ::android::hardware::hidl_string;
using ::android::hardware::hidl_vec;
using ::android::hardware::Return;
using ::android::hardware::Void;
using ::android::hardware::google::pixel::usb::addAdb;
using ::android::hardware::google::pixel::usb::addEpollFd;
using ::android::hardware::google::pixel::usb::getVendorFunctions;
using ::android::hardware::google::pixel::usb::kDebug;
using ::android::hardware::google::pixel::usb::kDisconnectWaitUs;
using ::android::hardware::google::pixel::usb::linkFunction;
using ::android::hardware::google::pixel::usb::MonitorFfs;
using ::android::hardware::google::pixel::usb::resetGadget;
using ::android::hardware::google::pixel::usb::setVidPid;
using ::android::hardware::google::pixel::usb::unlinkFunctions;
using ::android::hardware::usb::gadget::V1_0::Status;
using ::android::hardware::usb::gadget::V1_0::IUsbGadgetCallback;
using ::android::hardware::usb::gadget::V1_2::IUsbGadget;
using ::android::hardware::usb::gadget::V1_2::GadgetFunction;
using ::std::string;
constexpr char kGadgetName[] = "11110000.dwc3";
#ifndef UDC_PATH
#define UDC_PATH "/sys/class/udc/11110000.dwc3/"
#endif
static MonitorFfs monitorFfs(kGadgetName);
#define SPEED_PATH UDC_PATH "current_speed"
struct UsbGadget : public IUsbGadget {
UsbGadget();
// Makes sure that only one request is processed at a time.
std::mutex mLockSetCurrentFunction;
uint64_t mCurrentUsbFunctions;
bool mCurrentUsbFunctionsApplied;
UsbSpeed mUsbSpeed;
Return<void> setCurrentUsbFunctions(uint64_t functions,
const sp<V1_0::IUsbGadgetCallback> &callback,
uint64_t timeout) override;
Return<void> getCurrentUsbFunctions(const sp<V1_0::IUsbGadgetCallback> &callback) override;
Return<Status> reset() override;
Return<void> getUsbSpeed(const sp<V1_2::IUsbGadgetCallback> &callback) override;
private:
Status tearDownGadget();
Status setupFunctions(uint64_t functions, const sp<V1_0::IUsbGadgetCallback> &callback,
uint64_t timeout);
};
} // namespace implementation
} // namespace V1_2
} // namespace gadget
} // namespace usb
} // namespace hardware
} // namespace android

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usb/gadget/android.hardware.usb.gadget-service.gs101.rc Normal file
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service vendor.usb-gadget-hal-1-2 /vendor/bin/hw/android.hardware.usb.gadget-service.gs101
class hal
user system
group system shell mtp wakelock
capabilities WAKE_ALARM BLOCK_SUSPEND
on post-fs
chown root system /sys/class/typec/port0/power_role
chown root system /sys/class/typec/port0/data_role
chown root system /sys/class/typec/port0/port_type
chown root system /sys/devices/platform/10d50000.hsi2c/i2c-5/i2c-max77759tcpc/contaminant_detection
chown root system /sys/devices/platform/10d50000.hsi2c/i2c-6/i2c-max77759tcpc/contaminant_detection
chown root system /sys/devices/platform/11110000.usb/dwc3_exynos_otg_b_sess
chown root system /sys/devices/platform/11110000.usb/dwc3_exynos_otg_id
chown root system /sys/devices/platform/11110000.usb/usb_data_enabled
chmod 664 /sys/class/typec/port0/power_role
chmod 664 /sys/class/typec/port0/data_role
chmod 664 /sys/class/typec/port0/port_type
chmod 664 /sys/devices/platform/11110000.usb/dwc3_exynos_otg_b_sess
chmod 664 /sys/devices/platform/11110000.usb/dwc3_exynos_otg_id
chmod 664 /sys/devices/platform/11110000.usb/usb_data_enabled
on property:vendor.usb.functions.ready=1
chown system system /config/usb_gadget/
chown system system /config/usb_gadget/g1
chown system system /config/usb_gadget/g1/UDC
chown system system /config/usb_gadget/g1/bDeviceClass
chown system system /config/usb_gadget/g1/bDeviceProtocol
chown system system /config/usb_gadget/g1/bDeviceSubClass
chown system system /config/usb_gadget/g1/bMaxPacketSize0
chown system system /config/usb_gadget/g1/bcdDevice
chown system system /config/usb_gadget/g1/bcdUSB
chown system system /config/usb_gadget/g1/configs
chown system system /config/usb_gadget/g1/configs/b.1
chown system system /config/usb_gadget/g1/configs/b.1/MaxPower
chown system system /config/usb_gadget/g1/configs/b.1/bmAttributes
chown system system /config/usb_gadget/g1/configs/b.1/strings
chown system system /config/usb_gadget/g1/functions
chown system system /config/usb_gadget/g1/functions/accessory.gs2
chown system system /config/usb_gadget/g1/functions/acm.gs6
chown system system /config/usb_gadget/g1/functions/acm.gs6/port_num
chown system system /config/usb_gadget/g1/functions/acm.uwb0
chown system system /config/usb_gadget/g1/functions/acm.uwb0/port_num
chown system system /config/usb_gadget/g1/functions/audio_source.gs3
chown system system /config/usb_gadget/g1/functions/dm.gs7
chown system system /config/usb_gadget/g1/functions/ffs.adb
chown system system /config/usb_gadget/g1/functions/ffs.mtp
chown system system /config/usb_gadget/g1/functions/ffs.ptp
chown system system /config/usb_gadget/g1/functions/midi.gs5
chown system system /config/usb_gadget/g1/functions/midi.gs5/buflen
chown system system /config/usb_gadget/g1/functions/midi.gs5/id
chown system system /config/usb_gadget/g1/functions/midi.gs5/in_ports
chown system system /config/usb_gadget/g1/functions/midi.gs5/index
chown system system /config/usb_gadget/g1/functions/midi.gs5/out_ports
chown system system /config/usb_gadget/g1/functions/midi.gs5/qlen
chown system system /config/usb_gadget/g1/functions/mtp.gs0
chown system system /config/usb_gadget/g1/functions/mtp.gs0/os_desc
chown system system /config/usb_gadget/g1/functions/mtp.gs0/os_desc/interface.MTP
chown system system /config/usb_gadget/g1/functions/mtp.gs0/os_desc/interface.MTP/compatible_id
chown system system /config/usb_gadget/g1/functions/mtp.gs0/os_desc/interface.MTP/sub_compatible_id
chown system system /config/usb_gadget/g1/functions/ncm.gs9
chown system system /config/usb_gadget/g1/functions/ncm.gs9/dev_addr
chown system system /config/usb_gadget/g1/functions/ncm.gs9/host_addr
chown system system /config/usb_gadget/g1/functions/ncm.gs9/ifname
chown system system /config/usb_gadget/g1/functions/ncm.gs9/os_desc
chown system system /config/usb_gadget/g1/functions/ncm.gs9/os_desc/interface.ncm
chown system system /config/usb_gadget/g1/functions/ncm.gs9/os_desc/interface.ncm/compatible_id
chown system system /config/usb_gadget/g1/functions/ncm.gs9/os_desc/interface.ncm/sub_compatible_id
chown system system /config/usb_gadget/g1/functions/ncm.gs9/qmult
chown system system /config/usb_gadget/g1/functions/ptp.gs1
chown system system /config/usb_gadget/g1/functions/ptp.gs1/os_desc
chown system system /config/usb_gadget/g1/functions/ptp.gs1/os_desc/interface.MTP
chown system system /config/usb_gadget/g1/functions/ptp.gs1/os_desc/interface.MTP/compatible_id
chown system system /config/usb_gadget/g1/functions/ptp.gs1/os_desc/interface.MTP/sub_compatible_id
chown system system /config/usb_gadget/g1/functions/rndis.gs4
chown system system /config/usb_gadget/g1/functions/rndis.gs4/class
chown system system /config/usb_gadget/g1/functions/rndis.gs4/dev_addr
chown system system /config/usb_gadget/g1/functions/rndis.gs4/host_addr
chown system system /config/usb_gadget/g1/functions/rndis.gs4/ifname
chown system system /config/usb_gadget/g1/functions/rndis.gs4/os_desc
chown system system /config/usb_gadget/g1/functions/rndis.gs4/os_desc/interface.rndis
chown system system /config/usb_gadget/g1/functions/rndis.gs4/os_desc/interface.rndis/compatible_id
chown system system /config/usb_gadget/g1/functions/rndis.gs4/os_desc/interface.rndis/sub_compatible_id
chown system system /config/usb_gadget/g1/functions/rndis.gs4/protocol
chown system system /config/usb_gadget/g1/functions/rndis.gs4/qmult
chown system system /config/usb_gadget/g1/functions/rndis.gs4/subclass
chown system system /config/usb_gadget/g1/idProduct
chown system system /config/usb_gadget/g1/idVendor
chown system system /config/usb_gadget/g1/max_speed
chown system system /config/usb_gadget/g1/os_desc
chown system system /config/usb_gadget/g1/os_desc/b.1
chown system system /config/usb_gadget/g1/os_desc/b_vendor_code
chown system system /config/usb_gadget/g1/os_desc/qw_sign
chown system system /config/usb_gadget/g1/os_desc/use
chown system system /config/usb_gadget/g1/strings
chown system system /config/usb_gadget/g1/strings/0x409
chown system system /config/usb_gadget/g1/strings/0x409/manufacturer
chown system system /config/usb_gadget/g1/strings/0x409/product
chown system system /config/usb_gadget/g1/strings/0x409/serialnumber

11
usb/gadget/android.hardware.usb.gadget@1.2-service.gs101.xml Normal file
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@ -0,0 +1,11 @@
<manifest version="1.0" type="device">
<hal format="hidl">
<name>android.hardware.usb.gadget</name>
<transport>hwbinder</transport>
<version>1.2</version>
<interface>
<name>IUsbGadget</name>
<instance>default</instance>
</interface>
</hal>
</manifest>

50
usb/gadget/service_gadget.cpp Normal file
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/*
* Copyright (C) 2021 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.
*/
#define LOG_TAG "android.hardware.usb.gadget-service.gs101"
#include <hidl/HidlTransportSupport.h>
#include "UsbGadget.h"
using android::sp;
// libhwbinder:
using android::hardware::configureRpcThreadpool;
using android::hardware::joinRpcThreadpool;
// Generated HIDL files
using android::hardware::usb::gadget::V1_2::IUsbGadget;
using android::hardware::usb::gadget::V1_2::implementation::UsbGadget;
using android::OK;
using android::status_t;
int main() {
android::sp<IUsbGadget> service = new UsbGadget();
configureRpcThreadpool(2, true /*callerWillJoin*/);
status_t status = service->registerAsService();
if (status != OK) {
ALOGE("Cannot register USB Gadget HAL service");
return 1;
}
ALOGI("USB gadget HAL Ready.");
joinRpcThreadpool();
// Under noraml cases, execution will not reach this line.
ALOGI("USB gadget HAL failed to join thread pool.");
return 1;
}