diff options
author | Alex Hong <rurumihong@google.com> | 2019-08-16 01:22:57 +0800 |
---|---|---|
committer | Alex Hong <rurumihong@google.com> | 2019-08-19 12:39:55 +0800 |
commit | 1c2dbd8222ff7e51bf344765acd252859fbf09f7 (patch) | |
tree | 4d4f6f51947b8e8b9992b86738a9544cc9486bf5 /usb | |
parent | 5b993ab4ca0383e65ff80a5940fbb985abcfe26f (diff) | |
download | redfin-1c2dbd8222ff7e51bf344765acd252859fbf09f7.tar.gz |
Create aosp_redfin target
Bug: 139478768
Change-Id: I061f89a72b5e7b81280406abf85cca479b86f340
Diffstat (limited to 'usb')
-rw-r--r-- | usb/.clang-format | 14 | ||||
-rw-r--r-- | usb/Android.bp | 36 | ||||
-rw-r--r-- | usb/Usb.cpp | 785 | ||||
-rw-r--r-- | usb/Usb.h | 81 | ||||
-rw-r--r-- | usb/UsbGadget.cpp | 344 | ||||
-rw-r--r-- | usb/UsbGadget.h | 95 | ||||
-rw-r--r-- | usb/android.hardware.usb@1.2-service.redfin.rc | 12 | ||||
-rw-r--r-- | usb/service.cpp | 62 |
8 files changed, 1429 insertions, 0 deletions
diff --git a/usb/.clang-format b/usb/.clang-format new file mode 100644 index 0000000..5d8d909 --- /dev/null +++ b/usb/.clang-format @@ -0,0 +1,14 @@ +BasedOnStyle: Google +AccessModifierOffset: -2 +AllowShortFunctionsOnASingleLine: Inline +ColumnLimit: 99 +CommentPragmas: NOLINT:.* +DerivePointerAlignment: false +IndentWidth: 4 +PointerAlignment: Right +TabWidth: 4 +UseTab: Never +PenaltyExcessCharacter: 32 +AllowShortIfStatementsOnASingleLine: false +SpacesBeforeTrailingComments: 2 + diff --git a/usb/Android.bp b/usb/Android.bp new file mode 100644 index 0000000..2f7afc2 --- /dev/null +++ b/usb/Android.bp @@ -0,0 +1,36 @@ +// +// Copyright (C) 2018 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. + +cc_binary { + name: "android.hardware.usb@1.2-service.redfin", + relative_install_path: "hw", + init_rc: ["android.hardware.usb@1.2-service.redfin.rc"], + srcs: ["service.cpp", "Usb.cpp", "UsbGadget.cpp"], + shared_libs: [ + "android.hardware.usb@1.0", + "android.hardware.usb@1.1", + "android.hardware.usb@1.2", + "android.hardware.usb.gadget@1.0", + "libbase", + "libcutils", + "libhardware", + "libhidlbase", + "libhidltransport", + "liblog", + "libutils", + ], + static_libs: ["libpixelusb"], + proprietary: true, +} diff --git a/usb/Usb.cpp b/usb/Usb.cpp new file mode 100644 index 0000000..cd0005d --- /dev/null +++ b/usb/Usb.cpp @@ -0,0 +1,785 @@ +/* + * Copyright (C) 2017 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@1.2-service.redfin" + +#include <android-base/logging.h> +#include <assert.h> +#include <dirent.h> +#include <pthread.h> +#include <stdio.h> +#include <sys/types.h> +#include <unistd.h> +#include <chrono> +#include <regex> +#include <thread> +#include <unordered_map> + +#include <cutils/uevent.h> +#include <sys/epoll.h> +#include <utils/Errors.h> +#include <utils/StrongPointer.h> + +#include "Usb.h" + +namespace android { +namespace hardware { +namespace usb { +namespace V1_2 { +namespace implementation { + +// Set by the signal handler to destroy the thread +volatile bool destroyThread; + +constexpr char kEnabledPath[] = "/sys/class/power_supply/usb/moisture_detection_enabled"; +constexpr char kDetectedPath[] = "/sys/class/power_supply/usb/moisture_detected"; + +void queryVersionHelper(android::hardware::usb::V1_2::implementation::Usb *usb, + hidl_vec<PortStatus> *currentPortStatus_1_2); + +int32_t readFile(const std::string &filename, std::string *contents) { + FILE *fp; + ssize_t read = 0; + char *line = NULL; + size_t len = 0; + + fp = fopen(filename.c_str(), "r"); + if (fp != NULL) { + if ((read = getline(&line, &len, fp)) != -1) { + char *pos; + if ((pos = strchr(line, '\n')) != NULL) + *pos = '\0'; + *contents = line; + } + free(line); + fclose(fp); + return 0; + } else { + ALOGE("fopen failed"); + } + + return -1; +} + +int32_t writeFile(const std::string &filename, const std::string &contents) { + FILE *fp; + std::string written; + + fp = fopen(filename.c_str(), "w"); + if (fp != NULL) { + // FAILURE RETRY + int ret = fputs(contents.c_str(), fp); + fclose(fp); + if ((ret != EOF) && !readFile(filename, &written) && written == contents) + return 0; + } + return -1; +} + +Status queryMoistureDetectionStatus(hidl_vec<PortStatus> *currentPortStatus_1_2) { + std::string enabled, status; + + (*currentPortStatus_1_2)[0].supportedContaminantProtectionModes = 0; + (*currentPortStatus_1_2)[0].supportedContaminantProtectionModes |= + ContaminantProtectionMode::FORCE_SINK; + (*currentPortStatus_1_2)[0].contaminantProtectionStatus = ContaminantProtectionStatus::NONE; + (*currentPortStatus_1_2)[0].contaminantDetectionStatus = ContaminantDetectionStatus::DISABLED; + (*currentPortStatus_1_2)[0].supportsEnableContaminantPresenceDetection = true; + (*currentPortStatus_1_2)[0].supportsEnableContaminantPresenceProtection = false; + + if (readFile(kEnabledPath, &enabled)) { + ALOGE("Failed to open moisture_detection_enabled"); + return Status::ERROR; + } + + if (enabled == "1") { + if (readFile(kDetectedPath, &status)) { + ALOGE("Failed to open moisture_detected"); + return Status::ERROR; + } + if (status == "1") { + (*currentPortStatus_1_2)[0].contaminantDetectionStatus = + ContaminantDetectionStatus::DETECTED; + (*currentPortStatus_1_2)[0].contaminantProtectionStatus = + ContaminantProtectionStatus::FORCE_SINK; + } else + (*currentPortStatus_1_2)[0].contaminantDetectionStatus = + ContaminantDetectionStatus::NOT_DETECTED; + } + + ALOGI("ContaminantDetectionStatus:%d ContaminantProtectionStatus:%d", + (*currentPortStatus_1_2)[0].contaminantDetectionStatus, + (*currentPortStatus_1_2)[0].contaminantProtectionStatus); + + return Status::SUCCESS; +} + +Return<void> Usb::enableContaminantPresenceDetection(const hidl_string & /*portName*/, + bool enable) { + writeFile(kEnabledPath, enable ? "1" : "0"); + hidl_vec<PortStatus> currentPortStatus_1_2; + + queryVersionHelper(this, ¤tPortStatus_1_2); + return Void(); +} + +Return<void> Usb::enableContaminantPresenceProtection(const hidl_string & /*portName*/, + bool /*enable*/) { + hidl_vec<PortStatus> currentPortStatus_1_2; + + queryVersionHelper(this, ¤tPortStatus_1_2); + return Void(); +} + +std::string appendRoleNodeHelper(const std::string &portName, PortRoleType type) { + std::string node("/sys/class/typec/" + portName); + + switch (type) { + case PortRoleType::DATA_ROLE: + return node + "/data_role"; + case PortRoleType::POWER_ROLE: + return node + "/power_role"; + case PortRoleType::MODE: + return node + "/port_type"; + default: + return ""; + } +} + +std::string convertRoletoString(PortRole role) { + if (role.type == PortRoleType::POWER_ROLE) { + if (role.role == static_cast<uint32_t>(PortPowerRole::SOURCE)) + return "source"; + else if (role.role == static_cast<uint32_t>(PortPowerRole::SINK)) + return "sink"; + } else if (role.type == PortRoleType::DATA_ROLE) { + if (role.role == static_cast<uint32_t>(PortDataRole::HOST)) + return "host"; + if (role.role == static_cast<uint32_t>(PortDataRole::DEVICE)) + return "device"; + } else if (role.type == PortRoleType::MODE) { + if (role.role == static_cast<uint32_t>(PortMode_1_1::UFP)) + return "sink"; + if (role.role == static_cast<uint32_t>(PortMode_1_1::DFP)) + return "source"; + } + return "none"; +} + +void extractRole(std::string *roleName) { + std::size_t first, last; + + first = roleName->find("["); + last = roleName->find("]"); + + if (first != std::string::npos && last != std::string::npos) { + *roleName = roleName->substr(first + 1, last - first - 1); + } +} + +void switchToDrp(const std::string &portName) { + std::string filename = appendRoleNodeHelper(std::string(portName.c_str()), PortRoleType::MODE); + FILE *fp; + + if (filename != "") { + fp = fopen(filename.c_str(), "w"); + if (fp != NULL) { + int ret = fputs("dual", fp); + fclose(fp); + if (ret == EOF) + ALOGE("Fatal: Error while switching back to drp"); + } else { + ALOGE("Fatal: Cannot open file to switch back to drp"); + } + } else { + ALOGE("Fatal: invalid node type"); + } +} + +bool switchMode(const hidl_string &portName, const PortRole &newRole, struct Usb *usb) { + std::string filename = appendRoleNodeHelper(std::string(portName.c_str()), newRole.type); + std::string written; + FILE *fp; + bool roleSwitch = false; + + if (filename == "") { + ALOGE("Fatal: invalid node type"); + return false; + } + + fp = fopen(filename.c_str(), "w"); + if (fp != NULL) { + // Hold the lock here to prevent loosing connected signals + // as once the file is written the partner added signal + // can arrive anytime. + pthread_mutex_lock(&usb->mPartnerLock); + usb->mPartnerUp = false; + int ret = fputs(convertRoletoString(newRole).c_str(), fp); + fclose(fp); + + if (ret != EOF) { + struct timespec to; + struct timespec now; + + wait_again: + clock_gettime(CLOCK_MONOTONIC, &now); + to.tv_sec = now.tv_sec + PORT_TYPE_TIMEOUT; + to.tv_nsec = now.tv_nsec; + + int err = pthread_cond_timedwait(&usb->mPartnerCV, &usb->mPartnerLock, &to); + // There are no uevent signals which implies role swap timed out. + if (err == ETIMEDOUT) { + ALOGI("uevents wait timedout"); + // Sanity check. + } else if (!usb->mPartnerUp) { + goto wait_again; + // Role switch succeeded since usb->mPartnerUp is true. + } else { + roleSwitch = true; + } + } else { + ALOGI("Role switch failed while wrting to file"); + } + pthread_mutex_unlock(&usb->mPartnerLock); + } + + if (!roleSwitch) + switchToDrp(std::string(portName.c_str())); + + return roleSwitch; +} + +Usb::Usb() + : mLock(PTHREAD_MUTEX_INITIALIZER), + mRoleSwitchLock(PTHREAD_MUTEX_INITIALIZER), + mPartnerLock(PTHREAD_MUTEX_INITIALIZER), + mPartnerUp(false) { + pthread_condattr_t attr; + if (pthread_condattr_init(&attr)) { + ALOGE("pthread_condattr_init failed: %s", strerror(errno)); + abort(); + } + if (pthread_condattr_setclock(&attr, CLOCK_MONOTONIC)) { + ALOGE("pthread_condattr_setclock failed: %s", strerror(errno)); + abort(); + } + if (pthread_cond_init(&mPartnerCV, &attr)) { + ALOGE("pthread_cond_init failed: %s", strerror(errno)); + abort(); + } + if (pthread_condattr_destroy(&attr)) { + ALOGE("pthread_condattr_destroy failed: %s", strerror(errno)); + abort(); + } +} + +Return<void> Usb::switchRole(const hidl_string &portName, const V1_0::PortRole &newRole) { + std::string filename = appendRoleNodeHelper(std::string(portName.c_str()), newRole.type); + std::string written; + FILE *fp; + bool roleSwitch = false; + + if (filename == "") { + ALOGE("Fatal: invalid node type"); + return Void(); + } + + pthread_mutex_lock(&mRoleSwitchLock); + + ALOGI("filename write: %s role:%s", filename.c_str(), convertRoletoString(newRole).c_str()); + + if (newRole.type == PortRoleType::MODE) { + roleSwitch = switchMode(portName, newRole, this); + } else { + fp = fopen(filename.c_str(), "w"); + if (fp != NULL) { + int ret = fputs(convertRoletoString(newRole).c_str(), fp); + fclose(fp); + if ((ret != EOF) && !readFile(filename, &written)) { + extractRole(&written); + ALOGI("written: %s", written.c_str()); + if (written == convertRoletoString(newRole)) { + roleSwitch = true; + } else { + ALOGE("Role switch failed"); + } + } else { + ALOGE("failed to update the new role"); + } + } else { + ALOGE("fopen failed"); + } + } + + pthread_mutex_lock(&mLock); + if (mCallback_1_0 != NULL) { + Return<void> ret = mCallback_1_0->notifyRoleSwitchStatus( + portName, newRole, roleSwitch ? Status::SUCCESS : Status::ERROR); + if (!ret.isOk()) + ALOGE("RoleSwitchStatus error %s", ret.description().c_str()); + } else { + ALOGE("Not notifying the userspace. Callback is not set"); + } + pthread_mutex_unlock(&mLock); + pthread_mutex_unlock(&mRoleSwitchLock); + + return Void(); +} + +Status getAccessoryConnected(const std::string &portName, std::string *accessory) { + std::string filename = "/sys/class/typec/" + portName + "-partner/accessory_mode"; + + if (readFile(filename, accessory)) { + ALOGE("getAccessoryConnected: Failed to open filesystem node: %s", filename.c_str()); + return Status::ERROR; + } + + return Status::SUCCESS; +} + +Status getCurrentRoleHelper(const std::string &portName, bool connected, PortRoleType type, + uint32_t *currentRole) { + std::string filename; + std::string roleName; + std::string accessory; + + // Mode + + if (type == PortRoleType::POWER_ROLE) { + filename = "/sys/class/typec/" + portName + "/power_role"; + *currentRole = static_cast<uint32_t>(PortPowerRole::NONE); + } else if (type == PortRoleType::DATA_ROLE) { + filename = "/sys/class/typec/" + portName + "/data_role"; + *currentRole = static_cast<uint32_t>(PortDataRole::NONE); + } else if (type == PortRoleType::MODE) { + filename = "/sys/class/typec/" + portName + "/data_role"; + *currentRole = static_cast<uint32_t>(PortMode_1_1::NONE); + } else { + return Status::ERROR; + } + + if (!connected) + return Status::SUCCESS; + + if (type == PortRoleType::MODE) { + if (getAccessoryConnected(portName, &accessory) != Status::SUCCESS) { + return Status::ERROR; + } + if (accessory == "analog_audio") { + *currentRole = static_cast<uint32_t>(PortMode_1_1::AUDIO_ACCESSORY); + return Status::SUCCESS; + } else if (accessory == "debug") { + *currentRole = static_cast<uint32_t>(PortMode_1_1::DEBUG_ACCESSORY); + return Status::SUCCESS; + } + } + + if (readFile(filename, &roleName)) { + ALOGE("getCurrentRole: Failed to open filesystem node: %s", filename.c_str()); + return Status::ERROR; + } + + extractRole(&roleName); + + if (roleName == "source") { + *currentRole = static_cast<uint32_t>(PortPowerRole::SOURCE); + } else if (roleName == "sink") { + *currentRole = static_cast<uint32_t>(PortPowerRole::SINK); + } else if (roleName == "host") { + if (type == PortRoleType::DATA_ROLE) + *currentRole = static_cast<uint32_t>(PortDataRole::HOST); + else + *currentRole = static_cast<uint32_t>(PortMode_1_1::DFP); + } else if (roleName == "device") { + if (type == PortRoleType::DATA_ROLE) + *currentRole = static_cast<uint32_t>(PortDataRole::DEVICE); + else + *currentRole = static_cast<uint32_t>(PortMode_1_1::UFP); + } else if (roleName != "none") { + /* case for none has already been addressed. + * so we check if the role isnt none. + */ + return Status::UNRECOGNIZED_ROLE; + } + + return Status::SUCCESS; +} + +Status getTypeCPortNamesHelper(std::unordered_map<std::string, bool> *names) { + DIR *dp; + + dp = opendir("/sys/class/typec"); + if (dp != NULL) { + struct dirent *ep; + + while ((ep = readdir(dp))) { + if (ep->d_type == DT_LNK) { + if (std::string::npos == std::string(ep->d_name).find("-partner")) { + std::unordered_map<std::string, bool>::const_iterator portName = + names->find(ep->d_name); + if (portName == names->end()) { + names->insert({ep->d_name, false}); + } + } else { + (*names)[std::strtok(ep->d_name, "-")] = true; + } + } + } + closedir(dp); + return Status::SUCCESS; + } + + ALOGE("Failed to open /sys/class/typec"); + return Status::ERROR; +} + +bool canSwitchRoleHelper(const std::string &portName, PortRoleType /*type*/) { + std::string filename = "/sys/class/typec/" + portName + "-partner/supports_usb_power_delivery"; + std::string supportsPD; + + if (!readFile(filename, &supportsPD)) { + if (supportsPD == "yes") { + return true; + } + } + + return false; +} + +/* + * Reuse the same method for both V1_0 and V1_1 callback objects. + * The caller of this method would reconstruct the V1_0::PortStatus + * object if required. + */ +Status getPortStatusHelper(hidl_vec<PortStatus> *currentPortStatus_1_2, HALVersion version) { + std::unordered_map<std::string, bool> names; + Status result = getTypeCPortNamesHelper(&names); + int i = -1; + + if (result == Status::SUCCESS) { + currentPortStatus_1_2->resize(names.size()); + for (std::pair<std::string, bool> port : names) { + i++; + ALOGI("%s", port.first.c_str()); + (*currentPortStatus_1_2)[i].status_1_1.status.portName = port.first; + + uint32_t currentRole; + if (getCurrentRoleHelper(port.first, port.second, PortRoleType::POWER_ROLE, + ¤tRole) == Status::SUCCESS) { + (*currentPortStatus_1_2)[i].status_1_1.status.currentPowerRole = + static_cast<PortPowerRole>(currentRole); + } else { + ALOGE("Error while retreiving portNames"); + goto done; + } + + if (getCurrentRoleHelper(port.first, port.second, PortRoleType::DATA_ROLE, + ¤tRole) == Status::SUCCESS) { + (*currentPortStatus_1_2)[i].status_1_1.status.currentDataRole = + static_cast<PortDataRole>(currentRole); + } else { + ALOGE("Error while retreiving current port role"); + goto done; + } + + if (getCurrentRoleHelper(port.first, port.second, PortRoleType::MODE, ¤tRole) == + Status::SUCCESS) { + (*currentPortStatus_1_2)[i].status_1_1.currentMode = + static_cast<PortMode_1_1>(currentRole); + (*currentPortStatus_1_2)[i].status_1_1.status.currentMode = + static_cast<V1_0::PortMode>(currentRole); + } else { + ALOGE("Error while retreiving current data role"); + goto done; + } + + (*currentPortStatus_1_2)[i].status_1_1.status.canChangeMode = true; + (*currentPortStatus_1_2)[i].status_1_1.status.canChangeDataRole = + port.second ? canSwitchRoleHelper(port.first, PortRoleType::DATA_ROLE) : false; + (*currentPortStatus_1_2)[i].status_1_1.status.canChangePowerRole = + port.second ? canSwitchRoleHelper(port.first, PortRoleType::POWER_ROLE) : false; + + if (version == HALVersion::V1_0) { + ALOGI("HAL version V1_0"); + (*currentPortStatus_1_2)[i].status_1_1.status.supportedModes = V1_0::PortMode::DRP; + } else { + if (version == HALVersion::V1_1) + ALOGI("HAL version V1_1"); + else + ALOGI("HAL version V1_2"); + (*currentPortStatus_1_2)[i].status_1_1.supportedModes = 0 | PortMode_1_1::DRP; + (*currentPortStatus_1_2)[i].status_1_1.status.supportedModes = V1_0::PortMode::NONE; + (*currentPortStatus_1_2)[i].status_1_1.status.currentMode = V1_0::PortMode::NONE; + } + + ALOGI( + "%d:%s connected:%d canChangeMode:%d canChagedata:%d canChangePower:%d " + "supportedModes:%d", + i, port.first.c_str(), port.second, + (*currentPortStatus_1_2)[i].status_1_1.status.canChangeMode, + (*currentPortStatus_1_2)[i].status_1_1.status.canChangeDataRole, + (*currentPortStatus_1_2)[i].status_1_1.status.canChangePowerRole, + (*currentPortStatus_1_2)[i].status_1_1.supportedModes); + } + return Status::SUCCESS; + } +done: + return Status::ERROR; +} + +void queryVersionHelper(android::hardware::usb::V1_2::implementation::Usb *usb, + hidl_vec<PortStatus> *currentPortStatus_1_2) { + hidl_vec<V1_1::PortStatus_1_1> currentPortStatus_1_1; + hidl_vec<V1_0::PortStatus> currentPortStatus; + Status status; + sp<V1_1::IUsbCallback> callback_V1_1 = V1_1::IUsbCallback::castFrom(usb->mCallback_1_0); + sp<IUsbCallback> callback_V1_2 = IUsbCallback::castFrom(usb->mCallback_1_0); + + pthread_mutex_lock(&usb->mLock); + if (usb->mCallback_1_0 != NULL) { + if (callback_V1_2 != NULL) { + status = getPortStatusHelper(currentPortStatus_1_2, HALVersion::V1_2); + queryMoistureDetectionStatus(currentPortStatus_1_2); + } else if (callback_V1_1 != NULL) { + status = getPortStatusHelper(currentPortStatus_1_2, HALVersion::V1_1); + currentPortStatus_1_1.resize(currentPortStatus_1_2->size()); + for (unsigned long i = 0; i < currentPortStatus_1_2->size(); i++) + currentPortStatus_1_1[i] = (*currentPortStatus_1_2)[i].status_1_1; + } else { + status = getPortStatusHelper(currentPortStatus_1_2, HALVersion::V1_0); + currentPortStatus.resize(currentPortStatus_1_2->size()); + for (unsigned long i = 0; i < currentPortStatus_1_2->size(); i++) + currentPortStatus[i] = (*currentPortStatus_1_2)[i].status_1_1.status; + } + + Return<void> ret; + + if (callback_V1_2 != NULL) + ret = callback_V1_2->notifyPortStatusChange_1_2(*currentPortStatus_1_2, status); + else if (callback_V1_1 != NULL) + ret = callback_V1_1->notifyPortStatusChange_1_1(currentPortStatus_1_1, status); + else + ret = usb->mCallback_1_0->notifyPortStatusChange(currentPortStatus, status); + + if (!ret.isOk()) + ALOGE("queryPortStatus_1_2 error %s", ret.description().c_str()); + } else { + ALOGI("Notifying userspace skipped. Callback is NULL"); + } + pthread_mutex_unlock(&usb->mLock); +} + +Return<void> Usb::queryPortStatus() { + hidl_vec<PortStatus> currentPortStatus_1_2; + + queryVersionHelper(this, ¤tPortStatus_1_2); + return Void(); +} + +struct data { + int uevent_fd; + android::hardware::usb::V1_2::implementation::Usb *usb; +}; + +static void uevent_event(uint32_t /*epevents*/, struct data *payload) { + char msg[UEVENT_MSG_LEN + 2]; + char *cp; + int n; + + n = uevent_kernel_multicast_recv(payload->uevent_fd, msg, UEVENT_MSG_LEN); + if (n <= 0) + return; + if (n >= UEVENT_MSG_LEN) /* overflow -- discard */ + return; + + msg[n] = '\0'; + msg[n + 1] = '\0'; + cp = msg; + + while (*cp) { + if (std::regex_match(cp, std::regex("(add)(.*)(-partner)"))) { + ALOGI("partner added"); + pthread_mutex_lock(&payload->usb->mPartnerLock); + payload->usb->mPartnerUp = true; + pthread_cond_signal(&payload->usb->mPartnerCV); + pthread_mutex_unlock(&payload->usb->mPartnerLock); + } else if (!strncmp(cp, "DEVTYPE=typec_", strlen("DEVTYPE=typec_")) || + !strncmp(cp, "POWER_SUPPLY_MOISTURE_DETECTED", + strlen("POWER_SUPPLY_MOISTURE_DETECTED"))) { + hidl_vec<PortStatus> currentPortStatus_1_2; + queryVersionHelper(payload->usb, ¤tPortStatus_1_2); + + // Role switch is not in progress and port is in disconnected state + if (!pthread_mutex_trylock(&payload->usb->mRoleSwitchLock)) { + for (unsigned long i = 0; i < currentPortStatus_1_2.size(); i++) { + DIR *dp = + opendir(std::string("/sys/class/typec/" + + std::string(currentPortStatus_1_2[i] + .status_1_1.status.portName.c_str()) + + "-partner") + .c_str()); + if (dp == NULL) { + // PortRole role = {.role = static_cast<uint32_t>(PortMode::UFP)}; + switchToDrp(currentPortStatus_1_2[i].status_1_1.status.portName); + } else { + closedir(dp); + } + } + pthread_mutex_unlock(&payload->usb->mRoleSwitchLock); + } + break; + } + /* advance to after the next \0 */ + while (*cp++) { + } + } +} + +void *work(void *param) { + int epoll_fd, uevent_fd; + struct epoll_event ev; + int nevents = 0; + struct data payload; + + ALOGE("creating thread"); + + uevent_fd = uevent_open_socket(64 * 1024, true); + + if (uevent_fd < 0) { + ALOGE("uevent_init: uevent_open_socket failed\n"); + return NULL; + } + + payload.uevent_fd = uevent_fd; + payload.usb = (android::hardware::usb::V1_2::implementation::Usb *)param; + + fcntl(uevent_fd, F_SETFL, O_NONBLOCK); + + ev.events = EPOLLIN; + ev.data.ptr = (void *)uevent_event; + + epoll_fd = epoll_create(64); + if (epoll_fd == -1) { + ALOGE("epoll_create failed; errno=%d", errno); + goto error; + } + + if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, uevent_fd, &ev) == -1) { + ALOGE("epoll_ctl failed; errno=%d", errno); + goto error; + } + + while (!destroyThread) { + struct epoll_event events[64]; + + nevents = epoll_wait(epoll_fd, 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.ptr) + (*(void (*)(int, struct data *payload))events[n].data.ptr)(events[n].events, + &payload); + } + } + + ALOGI("exiting worker thread"); +error: + close(uevent_fd); + + if (epoll_fd >= 0) + close(epoll_fd); + + return NULL; +} + +void sighandler(int sig) { + if (sig == SIGUSR1) { + destroyThread = true; + ALOGI("destroy set"); + return; + } + signal(SIGUSR1, sighandler); +} + +Return<void> Usb::setCallback(const sp<V1_0::IUsbCallback> &callback) { + sp<V1_1::IUsbCallback> callback_V1_1 = V1_1::IUsbCallback::castFrom(callback); + sp<IUsbCallback> callback_V1_2 = IUsbCallback::castFrom(callback); + + if (callback != NULL) { + if (callback_V1_2 != NULL) + ALOGI("Registering 1.2 callback"); + else if (callback_V1_1 != NULL) + ALOGI("Registering 1.1 callback"); + } + + pthread_mutex_lock(&mLock); + /* + * When both the old callback and new callback values are NULL, + * there is no need to spin off the worker thread. + * When both the values are not NULL, we would already have a + * worker thread running, so updating the callback object would + * be suffice. + */ + if ((mCallback_1_0 == NULL && callback == NULL) || + (mCallback_1_0 != NULL && callback != NULL)) { + /* + * Always store as V1_0 callback object. Type cast to V1_1 + * when the callback is actually invoked. + */ + mCallback_1_0 = callback; + pthread_mutex_unlock(&mLock); + return Void(); + } + + mCallback_1_0 = callback; + ALOGI("registering callback"); + + // Kill the worker thread if the new callback is NULL. + if (mCallback_1_0 == NULL) { + pthread_mutex_unlock(&mLock); + if (!pthread_kill(mPoll, SIGUSR1)) { + pthread_join(mPoll, NULL); + ALOGI("pthread destroyed"); + } + return Void(); + } + + destroyThread = false; + signal(SIGUSR1, sighandler); + + /* + * Create a background thread if the old callback value is NULL + * and being updated with a new value. + */ + if (pthread_create(&mPoll, NULL, work, this)) { + ALOGE("pthread creation failed %d", errno); + mCallback_1_0 = NULL; + } + + pthread_mutex_unlock(&mLock); + return Void(); +} + +} // namespace implementation +} // namespace V1_2 +} // namespace usb +} // namespace hardware +} // namespace android diff --git a/usb/Usb.h b/usb/Usb.h new file mode 100644 index 0000000..65be180 --- /dev/null +++ b/usb/Usb.h @@ -0,0 +1,81 @@ +#ifndef ANDROID_HARDWARE_USB_V1_1_USB_H +#define ANDROID_HARDWARE_USB_V1_1_USB_H + +#include <android/hardware/usb/1.2/IUsb.h> +#include <android/hardware/usb/1.2/IUsbCallback.h> +#include <android/hardware/usb/1.2/types.h> +#include <hidl/Status.h> +#include <utils/Log.h> + +#define UEVENT_MSG_LEN 2048 +// The type-c stack waits for 4.5 - 5.5 secs before declaring a port non-pd. +// The -partner directory would not be created until this is done. +// Having a margin of ~3 secs for the directory and other related bookeeping +// structures created and uvent fired. +#define PORT_TYPE_TIMEOUT 8 + +namespace android { +namespace hardware { +namespace usb { +namespace V1_2 { +namespace implementation { + +using ::android::sp; +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::usb::V1_0::PortDataRole; +using ::android::hardware::usb::V1_0::PortPowerRole; +using ::android::hardware::usb::V1_0::PortRole; +using ::android::hardware::usb::V1_0::PortRoleType; +using ::android::hardware::usb::V1_0::Status; +using ::android::hardware::usb::V1_2::IUsb; +using ::android::hardware::usb::V1_2::IUsbCallback; + +using ::android::hardware::usb::V1_1::PortMode_1_1; +using ::android::hardware::usb::V1_1::PortStatus_1_1; +using ::android::hardware::usb::V1_2::PortStatus; +using ::android::hidl::base::V1_0::DebugInfo; +using ::android::hidl::base::V1_0::IBase; + +enum class HALVersion{ + V1_0, + V1_1, + V1_2 +}; + +struct Usb : public IUsb { + Usb(); + + Return<void> switchRole(const hidl_string &portName, const V1_0::PortRole &role) override; + Return<void> setCallback(const sp<V1_0::IUsbCallback> &callback) override; + Return<void> queryPortStatus() override; + Return<void> enableContaminantPresenceDetection(const hidl_string& portName, bool enable); + Return<void> enableContaminantPresenceProtection(const hidl_string& portName, bool enable); + + sp<V1_0::IUsbCallback> mCallback_1_0; + // Protects mCallback variable + pthread_mutex_t mLock; + // Protects roleSwitch operation + pthread_mutex_t mRoleSwitchLock; + // Threads waiting for the partner to come back wait here + pthread_cond_t mPartnerCV; + // lock protecting mPartnerCV + pthread_mutex_t mPartnerLock; + // Variable to signal partner coming back online after type switch + bool mPartnerUp; + + private: + pthread_t mPoll; +}; + +} // namespace implementation +} // namespace V1_2 +} // namespace usb +} // namespace hardware +} // namespace android + +#endif // ANDROID_HARDWARE_USB_V1_2_USB_H diff --git a/usb/UsbGadget.cpp b/usb/UsbGadget.cpp new file mode 100644 index 0000000..86a305b --- /dev/null +++ b/usb/UsbGadget.cpp @@ -0,0 +1,344 @@ +/* + * Copyright (C) 2018 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@1.0-service.redfin" + +#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_0 { +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(); +} + +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 == "diag") { + ret = setVidPid("0x05C6", "0x901B"); + } else { + 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 == "diag") { + ret = setVidPid("0x05C6", "0x903A"); + } else { + 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): + if (vendorFunctions == "diag") { + ret = setVidPid("0x05C6", "0x902C"); + } else if (vendorFunctions == "serial_cdev,diag") { + ret = setVidPid("0x05C6", "0x90B5"); + } else if (vendorFunctions == "diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl_gsi") { + ret = setVidPid("0x05C6", "0x90E6"); + } else { + 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: + if (vendorFunctions == "diag") { + ret = setVidPid("0x05C6", "0x902D"); + } else if (vendorFunctions == "serial_cdev,diag") { + ret = setVidPid("0x05C6", "0x90B6"); + } else if (vendorFunctions == "diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl_gsi") { + ret = setVidPid("0x05C6", "0x90E7"); + } 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 == "diag") { + ret = setVidPid("0x05C6", "0x901D"); + } else if (vendorFunctions == "diag,serial_cdev,rmnet_gsi") { + ret = setVidPid("0x05C6", "0x9091"); + } else if (vendorFunctions == "diag,serial_cdev") { + ret = setVidPid("0x05C6", "0x901F"); + } else if (vendorFunctions == + "diag,diag_mdm,qdss,qdss_mdm,serial_cdev,dpl_gsi,rmnet_gsi") { + ret = setVidPid("0x05C6", "0x90E5"); + } 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; + default: + ALOGE("Combination not supported"); + ret = Status::CONFIGURATION_NOT_SUPPORTED; + } + return ret; +} + +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 != "") { + ALOGI("enable usbradio debug functions"); + char *function = strtok(const_cast<char *>(vendorFunctions.c_str()), ","); + while (function != NULL) { + if (string(function) == "diag" && linkFunction("diag.diag", i++)) + return Status::ERROR; + if (string(function) == "diag_mdm" && linkFunction("diag.diag_mdm", i++)) + return Status::ERROR; + if (string(function) == "qdss" && linkFunction("qdss.qdss", i++)) + return Status::ERROR; + if (string(function) == "qdss_mdm" && linkFunction("qdss.qdss_mdm", i++)) + return Status::ERROR; + if (string(function) == "serial_cdev" && linkFunction("cser.dun.0", i++)) + return Status::ERROR; + if (string(function) == "dpl_gsi" && linkFunction("gsi.dpl", i++)) + return Status::ERROR; + if (string(function) == "rmnet_gsi" && linkFunction("gsi.rmnet", i++)) + return Status::ERROR; + function = strtok(NULL, ","); + } + } + + if ((functions & GadgetFunction::ADB) != 0) { + ffsEnabled = true; + if (addAdb(&monitorFfs, &i) != Status::SUCCESS) + 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(¤tFunctionsAppliedCallback, 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; + } + + 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_0 +} // namespace gadget +} // namespace usb +} // namespace hardware +} // namespace android diff --git a/usb/UsbGadget.h b/usb/UsbGadget.h new file mode 100644 index 0000000..1ffb188 --- /dev/null +++ b/usb/UsbGadget.h @@ -0,0 +1,95 @@ +/* + * Copyright (C) 2018 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. + */ + +#ifndef ANDROID_HARDWARE_USB_GADGET_V1_0_USBGADGET_H +#define ANDROID_HARDWARE_USB_GADGET_V1_0_USBGADGET_H + +#include <android-base/file.h> +#include <android-base/properties.h> +#include <android-base/unique_fd.h> +#include <android/hardware/usb/gadget/1.0/IUsbGadget.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_0 { +namespace implementation { + +using ::android::sp; +using ::android::base::GetProperty; +using ::android::base::SetProperty; +using ::android::base::unique_fd; +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 ::std::string; + +constexpr char kGadgetName[] = "a600000.dwc3"; +static MonitorFfs monitorFfs(kGadgetName); + +struct UsbGadget : public IUsbGadget { + UsbGadget(); + + // Makes sure that only one request is processed at a time. + std::mutex mLockSetCurrentFunction; + uint64_t mCurrentUsbFunctions; + bool mCurrentUsbFunctionsApplied; + + Return<void> setCurrentUsbFunctions(uint64_t functions, const sp<IUsbGadgetCallback> &callback, + uint64_t timeout) override; + + Return<void> getCurrentUsbFunctions(const sp<IUsbGadgetCallback> &callback) override; + + private: + Status tearDownGadget(); + Status setupFunctions(uint64_t functions, const sp<IUsbGadgetCallback> &callback, + uint64_t timeout); +}; + +} // namespace implementation +} // namespace V1_0 +} // namespace gadget +} // namespace usb +} // namespace hardware +} // namespace android + +#endif // ANDROID_HARDWARE_USB_V1_2_USBGADGET_H diff --git a/usb/android.hardware.usb@1.2-service.redfin.rc b/usb/android.hardware.usb@1.2-service.redfin.rc new file mode 100644 index 0000000..d9c4946 --- /dev/null +++ b/usb/android.hardware.usb@1.2-service.redfin.rc @@ -0,0 +1,12 @@ +service vendor.usb-hal-1-2 /vendor/bin/hw/android.hardware.usb@1.2-service.redfin + class hal + user root + group root system shell mtp + +on boot + 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 + chmod 664 /sys/class/typec/port0/power_role + chmod 664 /sys/class/typec/port0/data_role + chmod 664 /sys/class/typec/port0/port_type diff --git a/usb/service.cpp b/usb/service.cpp new file mode 100644 index 0000000..c6768fe --- /dev/null +++ b/usb/service.cpp @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2018 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@1.2-service.redfin" + +#include <hidl/HidlTransportSupport.h> +#include "Usb.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_0::IUsbGadget; +using android::hardware::usb::gadget::V1_0::implementation::UsbGadget; +using android::hardware::usb::V1_2::IUsb; +using android::hardware::usb::V1_2::implementation::Usb; + +using android::OK; +using android::status_t; + +int main() { + android::sp<IUsb> service = new Usb(); + android::sp<IUsbGadget> service2 = new UsbGadget(); + + configureRpcThreadpool(2, true /*callerWillJoin*/); + status_t status = service->registerAsService(); + + if (status != OK) { + ALOGE("Cannot register USB HAL service"); + return 1; + } + + status = service2->registerAsService(); + + if (status != OK) { + ALOGE("Cannot register USB Gadget HAL service"); + return 1; + } + + ALOGI("USB HAL Ready."); + joinRpcThreadpool(); + // Under noraml cases, execution will not reach this line. + ALOGI("USB HAL failed to join thread pool."); + return 1; +} |