diff --git a/usb/usb/Android.bp b/usb/usb/Android.bp index fa7a07f7..6e64fe77 100644 --- a/usb/usb/Android.bp +++ b/usb/usb/Android.bp @@ -32,7 +32,6 @@ cc_binary { srcs: [ "service.cpp", "Usb.cpp", - "UsbDataSessionMonitor.cpp", ], shared_libs: [ "libbase", @@ -56,18 +55,13 @@ cc_binary { ], static_libs: [ "libpixelusb", + "libpixelusb-datasession", "libpixelstats", "libthermalutils", - "android.hardware.usb.flags-aconfig-c-lib", + "android.hardware.usb.flags-aconfig-cc-lib", ], export_shared_lib_headers: [ "android.frameworks.stats-V2-ndk", "pixelatoms-cpp", ], } - -cc_aconfig_library { - name: "android.hardware.usb.flags-aconfig-c-lib", - vendor: true, - aconfig_declarations: "android.hardware.usb.flags-aconfig", -} diff --git a/usb/usb/Usb.cpp b/usb/usb/Usb.cpp index ab7932ba..3650c5b5 100644 --- a/usb/usb/Usb.cpp +++ b/usb/usb/Usb.cpp @@ -533,9 +533,9 @@ Usb::Usb() mRoleSwitchLock(PTHREAD_MUTEX_INITIALIZER), mPartnerLock(PTHREAD_MUTEX_INITIALIZER), mPartnerUp(false), - mUsbDataSessionMonitor(kUdcUeventRegex, kUdcStatePath, kHost1UeventRegex, kHost1StatePath, - kHost2UeventRegex, kHost2StatePath, kDataRolePath, - std::bind(&updatePortStatus, this)), + mUsbDataSessionMonitor(new UsbDataSessionMonitor(kUdcUeventRegex, kUdcStatePath, + kHost1UeventRegex, kHost1StatePath, kHost2UeventRegex, + kHost2StatePath, kDataRolePath, std::bind(&updatePortStatus, this))), mOverheat(ZoneInfo(TemperatureType::USB_PORT, kThermalZoneForTrip, ThrottlingSeverity::CRITICAL), {ZoneInfo(TemperatureType::UNKNOWN, kThermalZoneForTempReadPrimary, @@ -930,7 +930,7 @@ void queryUsbDataSession(android::hardware::usb::Usb *usb, std::vector *currentPortStatus) { std::vector warnings; - usb->mUsbDataSessionMonitor.getComplianceWarnings( + usb->mUsbDataSessionMonitor->getComplianceWarnings( (*currentPortStatus)[0].currentDataRole, &warnings); (*currentPortStatus)[0].complianceWarnings.insert( (*currentPortStatus)[0].complianceWarnings.end(), diff --git a/usb/usb/Usb.h b/usb/usb/Usb.h index 15348af0..adab1951 100644 --- a/usb/usb/Usb.h +++ b/usb/usb/Usb.h @@ -19,9 +19,9 @@ #include #include #include +#include #include #include -#include #define UEVENT_MSG_LEN 2048 // The type-c stack waits for 4.5 - 5.5 secs before declaring a port non-pd. @@ -39,6 +39,7 @@ using ::aidl::android::hardware::usb::IUsbCallback; using ::aidl::android::hardware::usb::PortRole; using ::android::base::ReadFileToString; using ::android::base::WriteStringToFile; +using ::android::hardware::google::pixel::usb::UsbDataSessionMonitor; using ::android::hardware::google::pixel::usb::UsbOverheatEvent; using ::android::hardware::google::pixel::usb::ZoneInfo; using ::android::hardware::thermal::V2_0::TemperatureType; @@ -87,7 +88,7 @@ struct Usb : public BnUsb { bool mPartnerUp; // Report usb data session event and data incompliance warnings - UsbDataSessionMonitor mUsbDataSessionMonitor; + std::unique_ptr mUsbDataSessionMonitor; // Usb Overheat object for push suez event UsbOverheatEvent mOverheat; // Temperature when connected diff --git a/usb/usb/UsbDataSessionMonitor.cpp b/usb/usb/UsbDataSessionMonitor.cpp deleted file mode 100644 index bff52f06..00000000 --- a/usb/usb/UsbDataSessionMonitor.cpp +++ /dev/null @@ -1,508 +0,0 @@ -/* - * Copyright (C) 2023 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#define LOG_TAG "android.hardware.usb.aidl-service.UsbDataSessionMonitor" - -#include "UsbDataSessionMonitor.h" - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -namespace usb_flags = android::hardware::usb::flags; - -using aidl::android::frameworks::stats::IStats; -using android::base::ReadFileToString; -using android::hardware::google::pixel::getStatsService; -using android::hardware::google::pixel::reportUsbDataSessionEvent; -using android::hardware::google::pixel::PixelAtoms::VendorUsbDataSessionEvent; -using android::hardware::google::pixel::usb::addEpollFd; -using android::hardware::google::pixel::usb::BuildVendorUsbDataSessionEvent; - -namespace aidl { -namespace android { -namespace hardware { -namespace usb { - -#define UEVENT_MSG_LEN 2048 -#define USB_STATE_MAX_LEN 20 -#define DATA_ROLE_MAX_LEN 10 -#define WARNING_SURFACE_DELAY_SEC 5 -#define ENUM_FAIL_DEFAULT_COUNT_THRESHOLD 3 -#define DEVICE_FLAKY_CONNECTION_CONFIGURED_COUNT_THRESHOLD 5 - -constexpr char kUdcConfigfsPath[] = "/config/usb_gadget/g1/UDC"; -constexpr char kNotAttachedState[] = "not attached\n"; -constexpr char kAttachedState[] = "attached\n"; -constexpr char kPoweredState[] = "powered\n"; -constexpr char kDefaultState[] = "default\n"; -constexpr char kAddressedState[] = "addressed\n"; -constexpr char kConfiguredState[] = "configured\n"; -constexpr char kSuspendedState[] = "suspended\n"; -const std::set kValidStates = {kNotAttachedState, kAttachedState, kPoweredState, - kDefaultState, kAddressedState, kConfiguredState, - kSuspendedState}; - -static int addEpollFile(const int &epollFd, const std::string &filePath, unique_fd &fileFd) { - struct epoll_event ev; - - unique_fd fd(open(filePath.c_str(), O_RDONLY)); - - if (fd.get() == -1) { - ALOGI("Cannot open %s", filePath.c_str()); - return -1; - } - - ev.data.fd = fd.get(); - ev.events = EPOLLPRI; - - if (epoll_ctl(epollFd, EPOLL_CTL_ADD, fd.get(), &ev) != 0) { - ALOGE("epoll_ctl failed; errno=%d", errno); - return -1; - } - - fileFd = std::move(fd); - ALOGI("epoll registered %s", filePath.c_str()); - return 0; -} - -static void removeEpollFile(const int &epollFd, const std::string &filePath, unique_fd &fileFd) { - epoll_ctl(epollFd, EPOLL_CTL_DEL, fileFd.get(), NULL); - fileFd.release(); - - ALOGI("epoll unregistered %s", filePath.c_str()); -} - -UsbDataSessionMonitor::UsbDataSessionMonitor( - const std::string &deviceUeventRegex, const std::string &deviceStatePath, - const std::string &host1UeventRegex, const std::string &host1StatePath, - const std::string &host2UeventRegex, const std::string &host2StatePath, - const std::string &dataRolePath, std::function updatePortStatusCb) { - struct epoll_event ev; - std::string udc; - - unique_fd epollFd(epoll_create(8)); - if (epollFd.get() == -1) { - ALOGE("epoll_create failed; errno=%d", errno); - abort(); - } - - unique_fd ueventFd(uevent_open_socket(64 * 1024, true)); - if (ueventFd.get() == -1) { - ALOGE("uevent_open_socket failed"); - abort(); - } - fcntl(ueventFd, F_SETFL, O_NONBLOCK); - - if (addEpollFd(epollFd, ueventFd)) - abort(); - - unique_fd timerFd(timerfd_create(CLOCK_BOOTTIME, TFD_NONBLOCK)); - if (timerFd.get() == -1) { - ALOGE("create timerFd failed"); - abort(); - } - - if (addEpollFd(epollFd, timerFd)) - abort(); - - if (addEpollFile(epollFd.get(), dataRolePath, mDataRoleFd) != 0) { - ALOGE("monitor data role failed"); - abort(); - } - - /* - * The device state file could be absent depending on the current data role - * and driver architecture. It's ok for addEpollFile to fail here, the file - * will be monitored later when its presence is detected by uevent. - */ - mDeviceState.filePath = deviceStatePath; - mDeviceState.ueventRegex = deviceUeventRegex; - addEpollFile(epollFd.get(), mDeviceState.filePath, mDeviceState.fd); - - mHost1State.filePath = host1StatePath; - mHost1State.ueventRegex = host1UeventRegex; - addEpollFile(epollFd.get(), mHost1State.filePath, mHost1State.fd); - - mHost2State.filePath = host2StatePath; - mHost2State.ueventRegex = host2UeventRegex; - addEpollFile(epollFd.get(), mHost2State.filePath, mHost2State.fd); - - mEpollFd = std::move(epollFd); - mUeventFd = std::move(ueventFd); - mTimerFd = std::move(timerFd); - mUpdatePortStatusCb = updatePortStatusCb; - - if (ReadFileToString(kUdcConfigfsPath, &udc) && !udc.empty()) - mUdcBind = true; - else - mUdcBind = false; - - if (pthread_create(&mMonitor, NULL, this->monitorThread, this)) { - ALOGE("pthread creation failed %d", errno); - abort(); - } - - ALOGI("feature flag enable_report_usb_data_compliance_warning: %d", - usb_flags::enable_report_usb_data_compliance_warning()); -} - -UsbDataSessionMonitor::~UsbDataSessionMonitor() {} - -void UsbDataSessionMonitor::reportUsbDataSessionMetrics() { - std::vector events; - - if (mDataRole == PortDataRole::DEVICE) { - VendorUsbDataSessionEvent event; - BuildVendorUsbDataSessionEvent(false /* is_host */, boot_clock::now(), mDataSessionStart, - &mDeviceState.states, &mDeviceState.timestamps, &event); - events.push_back(event); - } else if (mDataRole == PortDataRole::HOST) { - bool empty = true; - for (auto e : {&mHost1State, &mHost2State}) { - /* - * Host port will at least get an not_attached event after enablement, - * skip upload if no additional state is added. - */ - if (e->states.size() > 1) { - VendorUsbDataSessionEvent event; - BuildVendorUsbDataSessionEvent(true /* is_host */, boot_clock::now(), - mDataSessionStart, &e->states, &e->timestamps, - &event); - events.push_back(event); - empty = false; - } - } - // All host ports have no state update, upload an event to reflect it - if (empty) { - VendorUsbDataSessionEvent event; - BuildVendorUsbDataSessionEvent(true /* is_host */, boot_clock::now(), mDataSessionStart, - &mHost1State.states, &mHost1State.timestamps, &event); - events.push_back(event); - } - } else { - return; - } - - const std::shared_ptr stats_client = getStatsService(); - if (!stats_client) { - ALOGE("Unable to get AIDL Stats service"); - return; - } - - for (auto &event : events) { - reportUsbDataSessionEvent(stats_client, event); - } -} - -void UsbDataSessionMonitor::getComplianceWarnings(const PortDataRole &role, - std::vector *warnings) { - if (!usb_flags::enable_report_usb_data_compliance_warning()) - return; - - if (role != mDataRole || role == PortDataRole::NONE) - return; - - for (auto w : mWarningSet) { - warnings->push_back(w); - } -} - -void UsbDataSessionMonitor::notifyComplianceWarning() { - if (!usb_flags::enable_report_usb_data_compliance_warning()) - return; - - if (mUpdatePortStatusCb) - mUpdatePortStatusCb(); -} - -void UsbDataSessionMonitor::evaluateComplianceWarning() { - std::set newWarningSet; - int elapsedTimeSec; - - elapsedTimeSec = - std::chrono::duration_cast(boot_clock::now() - mDataSessionStart) - .count(); - - if (elapsedTimeSec >= WARNING_SURFACE_DELAY_SEC) { - if (mDataRole == PortDataRole::DEVICE && mUdcBind) { - int configuredCount = std::count(mDeviceState.states.begin(), - mDeviceState.states.end(), kConfiguredState); - int defaultCount = - std::count(mDeviceState.states.begin(), mDeviceState.states.end(), kDefaultState); - - if (configuredCount == 0 && defaultCount > ENUM_FAIL_DEFAULT_COUNT_THRESHOLD) - newWarningSet.insert(ComplianceWarning::ENUMERATION_FAIL); - - if (configuredCount > DEVICE_FLAKY_CONNECTION_CONFIGURED_COUNT_THRESHOLD) - newWarningSet.insert(ComplianceWarning::FLAKY_CONNECTION); - } else if (mDataRole == PortDataRole::HOST) { - int host1StateCount = mHost1State.states.size(); - int host1ConfiguredCount = - std::count(mHost1State.states.begin(), mHost1State.states.end(), kConfiguredState); - int host1DefaultCount = - std::count(mHost1State.states.begin(), mHost1State.states.end(), kDefaultState); - int host2StateCount = mHost2State.states.size(); - int host2ConfiguredCount = - std::count(mHost2State.states.begin(), mHost2State.states.end(), kConfiguredState); - int host2DefaultCount = - std::count(mHost2State.states.begin(), mHost2State.states.end(), kDefaultState); - - if (host1ConfiguredCount == 0 && host2ConfiguredCount == 0 && - (host1DefaultCount > ENUM_FAIL_DEFAULT_COUNT_THRESHOLD || - host2DefaultCount > ENUM_FAIL_DEFAULT_COUNT_THRESHOLD)) - newWarningSet.insert(ComplianceWarning::ENUMERATION_FAIL); - - if (host1StateCount == 1 && mHost1State.states.front() == kNotAttachedState && - host2StateCount == 1 && mHost2State.states.front() == kNotAttachedState) - newWarningSet.insert(ComplianceWarning::MISSING_DATA_LINES); - } - } - - if (newWarningSet != mWarningSet) { - std::string newWarningString; - - for (auto e : newWarningSet) { - newWarningString += toString(e) + " "; - } - ALOGI("Usb data compliance warning changed to: %s", newWarningString.c_str()); - - mWarningSet = newWarningSet; - notifyComplianceWarning(); - } -} - -void UsbDataSessionMonitor::clearDeviceStateEvents(struct usbDeviceState *deviceState) { - deviceState->states.clear(); - deviceState->timestamps.clear(); -} - -void UsbDataSessionMonitor::handleDeviceStateEvent(struct usbDeviceState *deviceState) { - int n; - char state[USB_STATE_MAX_LEN] = {0}; - - lseek(deviceState->fd.get(), 0, SEEK_SET); - n = read(deviceState->fd.get(), &state, USB_STATE_MAX_LEN); - - if (kValidStates.find(state) == kValidStates.end()) { - ALOGE("Invalid state %s", state); - return; - } - - ALOGI("Update USB device state: %s", state); - - deviceState->states.push_back(state); - deviceState->timestamps.push_back(boot_clock::now()); - evaluateComplianceWarning(); -} - -void UsbDataSessionMonitor::setupNewSession() { - mWarningSet.clear(); - mDataSessionStart = boot_clock::now(); - - if (mDataRole == PortDataRole::DEVICE) { - clearDeviceStateEvents(&mDeviceState); - } else if (mDataRole == PortDataRole::HOST) { - clearDeviceStateEvents(&mHost1State); - clearDeviceStateEvents(&mHost2State); - } - - if (mDataRole != PortDataRole::NONE) { - struct itimerspec delay = itimerspec(); - delay.it_value.tv_sec = WARNING_SURFACE_DELAY_SEC; - int ret = timerfd_settime(mTimerFd.get(), 0, &delay, NULL); - if (ret < 0) - ALOGE("timerfd_settime failed err:%d", errno); - } -} - -void UsbDataSessionMonitor::handleDataRoleEvent() { - int n; - PortDataRole newDataRole; - char role[DATA_ROLE_MAX_LEN] = {0}; - - lseek(mDataRoleFd.get(), 0, SEEK_SET); - n = read(mDataRoleFd.get(), &role, DATA_ROLE_MAX_LEN); - - ALOGI("Update USB data role %s", role); - - if (!std::strcmp(role, "host")) { - newDataRole = PortDataRole::HOST; - } else if (!std::strcmp(role, "device")) { - newDataRole = PortDataRole::DEVICE; - } else { - newDataRole = PortDataRole::NONE; - } - - if (newDataRole != mDataRole) { - // Upload metrics for the last data session that has ended - if (mDataRole == PortDataRole::HOST || (mDataRole == PortDataRole::DEVICE && mUdcBind)) { - reportUsbDataSessionMetrics(); - } - - mDataRole = newDataRole; - setupNewSession(); - } -} - -void UsbDataSessionMonitor::updateUdcBindStatus(const std::string &devname) { - std::string function; - bool newUdcBind; - - /* - * /sys/class/udc//function prints out name of currently running USB gadget driver - * Ref: https://www.kernel.org/doc/Documentation/ABI/stable/sysfs-class-udc - * Empty name string means the udc device is not bound and gadget is pulldown. - */ - if (!ReadFileToString("/sys" + devname + "/function", &function)) - return; - - if (function == "") - newUdcBind = false; - else - newUdcBind = true; - - if (newUdcBind == mUdcBind) - return; - - if (mDataRole == PortDataRole::DEVICE) { - if (mUdcBind && !newUdcBind) { - /* - * Gadget soft pulldown: report metrics as the end of a data session and - * re-evaluate compliance warnings to clear existing warnings if any. - */ - reportUsbDataSessionMetrics(); - evaluateComplianceWarning(); - - } else if (!mUdcBind && newUdcBind) { - // Gadget soft pullup: reset and start accounting for a new data session. - setupNewSession(); - } - } - - ALOGI("Udc bind status changes from %b to %b", mUdcBind, newUdcBind); - mUdcBind = newUdcBind; -} - -void UsbDataSessionMonitor::handleUevent() { - char msg[UEVENT_MSG_LEN + 2]; - char *cp; - int n; - - n = uevent_kernel_multicast_recv(mUeventFd.get(), msg, UEVENT_MSG_LEN); - if (n <= 0) - return; - if (n >= UEVENT_MSG_LEN) - return; - - msg[n] = '\0'; - msg[n + 1] = '\0'; - cp = msg; - - while (*cp) { - for (auto e : {&mHost1State, &mHost2State}) { - if (std::regex_search(cp, std::regex(e->ueventRegex))) { - if (!strncmp(cp, "bind@", strlen("bind@"))) { - addEpollFile(mEpollFd.get(), e->filePath, e->fd); - } else if (!strncmp(cp, "unbind@", strlen("unbind@"))) { - removeEpollFile(mEpollFd.get(), e->filePath, e->fd); - } - } - } - - // TODO: support bind@ unbind@ to detect dynamically allocated udc device - if (std::regex_search(cp, std::regex(mDeviceState.ueventRegex))) { - if (!strncmp(cp, "change@", strlen("change@"))) { - char *devname = cp + strlen("change@"); - /* - * Udc device emits a KOBJ_CHANGE event on configfs driver bind and unbind. - * TODO: upstream udc driver emits KOBJ_CHANGE event BEFORE unbind is actually - * executed. Add a short delay to get the correct state while working on a fix - * upstream. - */ - usleep(50000); - updateUdcBindStatus(devname); - } - } - /* advance to after the next \0 */ - while (*cp++) { - } - } -} - -void UsbDataSessionMonitor::handleTimerEvent() { - int byteRead; - uint64_t numExpiration; - - byteRead = read(mTimerFd.get(), &numExpiration, sizeof(numExpiration)); - - if (byteRead != sizeof(numExpiration)) { - ALOGE("incorrect read size"); - } - - if (numExpiration != 1) { - ALOGE("incorrect expiration count"); - } - - evaluateComplianceWarning(); -} - -void *UsbDataSessionMonitor::monitorThread(void *param) { - UsbDataSessionMonitor *monitor = (UsbDataSessionMonitor *)param; - struct epoll_event events[64]; - int nevents = 0; - - while (true) { - nevents = epoll_wait(monitor->mEpollFd.get(), events, 64, -1); - if (nevents == -1) { - if (errno == EINTR) - continue; - ALOGE("usb epoll_wait failed; errno=%d", errno); - break; - } - - for (int n = 0; n < nevents; ++n) { - if (events[n].data.fd == monitor->mUeventFd.get()) { - monitor->handleUevent(); - } else if (events[n].data.fd == monitor->mTimerFd.get()) { - monitor->handleTimerEvent(); - } else if (events[n].data.fd == monitor->mDataRoleFd.get()) { - monitor->handleDataRoleEvent(); - } else if (events[n].data.fd == monitor->mDeviceState.fd.get()) { - monitor->handleDeviceStateEvent(&monitor->mDeviceState); - } else if (events[n].data.fd == monitor->mHost1State.fd.get()) { - monitor->handleDeviceStateEvent(&monitor->mHost1State); - } else if (events[n].data.fd == monitor->mHost2State.fd.get()) { - monitor->handleDeviceStateEvent(&monitor->mHost2State); - } - } - } - return NULL; -} - -} // namespace usb -} // namespace hardware -} // namespace android -} // namespace aidl diff --git a/usb/usb/UsbDataSessionMonitor.h b/usb/usb/UsbDataSessionMonitor.h deleted file mode 100644 index aced8a48..00000000 --- a/usb/usb/UsbDataSessionMonitor.h +++ /dev/null @@ -1,117 +0,0 @@ -/* - * Copyright (C) 2023 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#pragma once - -#include -#include -#include -#include - -#include -#include -#include - -namespace aidl { -namespace android { -namespace hardware { -namespace usb { - -using ::aidl::android::hardware::usb::ComplianceWarning; -using ::aidl::android::hardware::usb::PortDataRole; -using ::android::base::boot_clock; -using ::android::base::unique_fd; - -/* - * UsbDataSessionMonitor monitors the usb device state sysfs of 3 different usb devices - * including device mode (udc), host mode high-speed port and host mode super-speed port. It - * reports Suez metrics for each data session and also provides API to query the compliance - * warnings detected in the current usb data session. - */ -class UsbDataSessionMonitor { - public: - /* - * The host mode high-speed port and super-speed port can be assigned to either host1 or - * host2 without affecting functionality. - * - * UeventRegex: name regex of the device that's being monitored. The regex is matched against - * uevent to detect dynamic creation/deletion/change of the device. - * StatePath: usb device state sysfs path of the device, monitored by epoll. - * dataRolePath: path to the usb data role sysfs, monitored by epoll. - * updatePortStatusCb: the callback is invoked when the compliance warings changes. - */ - UsbDataSessionMonitor(const std::string &deviceUeventRegex, const std::string &deviceStatePath, - const std::string &host1UeventRegex, const std::string &host1StatePath, - const std::string &host2UeventRegex, const std::string &host2StatePath, - const std::string &dataRolePath, - std::function updatePortStatusCb); - ~UsbDataSessionMonitor(); - // Returns the compliance warnings detected in the current data session. - void getComplianceWarnings(const PortDataRole &role, std::vector *warnings); - - private: - struct usbDeviceState { - unique_fd fd; - std::string filePath; - std::string ueventRegex; - // Usb device states reported by state sysfs - std::vector states; - // Timestamps of when the usb device states were captured - std::vector timestamps; - }; - - static void *monitorThread(void *param); - void handleUevent(); - void handleTimerEvent(); - void handleDataRoleEvent(); - void handleDeviceStateEvent(struct usbDeviceState *deviceState); - void clearDeviceStateEvents(struct usbDeviceState *deviceState); - void setupNewSession(); - void reportUsbDataSessionMetrics(); - void evaluateComplianceWarning(); - void notifyComplianceWarning(); - void updateUdcBindStatus(const std::string &devname); - - pthread_t mMonitor; - unique_fd mEpollFd; - unique_fd mUeventFd; - unique_fd mTimerFd; - unique_fd mDataRoleFd; - struct usbDeviceState mDeviceState; - struct usbDeviceState mHost1State; - struct usbDeviceState mHost2State; - std::set mWarningSet; - // Callback function to notify the caller when there's a change in compliance warnings. - std::function mUpdatePortStatusCb; - /* - * Cache relevant info for a USB data session when one starts, including - * the data role and the time when the session starts. - */ - PortDataRole mDataRole; - boot_clock::time_point mDataSessionStart; - /* - * In gadget mode: this indicates whether the udc device is bound to the configfs driver, which - * is done by userspace writing the udc device name to /config/usb_gadget/g1/UDC. When unbound, - * the gadget is in soft pulldown state and is expected not to enumerate. During gadget - * function switch, the udc device usually go through unbind and bind. - */ - bool mUdcBind; -}; - -} // namespace usb -} // namespace hardware -} // namespace android -} // namespace aidl