Contexthub HAL default implementation and service.
Adds the default context hub hal implementation and service.
Test: Context Hub GTS tests still pass.
Change-Id: I7416ce9ec8efca7f98d2bb63606f030f4e8c8ead
diff --git a/contexthub/1.0/default/Android.bp b/contexthub/1.0/default/Android.bp
new file mode 100644
index 0000000..7c5f79d
--- /dev/null
+++ b/contexthub/1.0/default/Android.bp
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2016 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_library_shared {
+ name: "android.hardware.contexthub@1.0-impl",
+ relative_install_path: "hw",
+ srcs: ["Contexthub.cpp"],
+ shared_libs: [
+ "liblog",
+ "libcutils",
+ "libhardware",
+ "libhwbinder",
+ "libbase",
+ "libcutils",
+ "libutils",
+ "libhidlbase",
+ "libhidltransport",
+ "android.hardware.contexthub@1.0",
+ ],
+}
diff --git a/contexthub/1.0/default/Android.mk b/contexthub/1.0/default/Android.mk
new file mode 100644
index 0000000..ad40878
--- /dev/null
+++ b/contexthub/1.0/default/Android.mk
@@ -0,0 +1,23 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_MODULE := android.hardware.contexthub@1.0-service
+LOCAL_INIT_RC := android.hardware.contexthub@1.0-service.rc
+LOCAL_SRC_FILES := \
+ service.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+ libbase \
+ libcutils \
+ libdl \
+ libhardware \
+ libhardware_legacy \
+ libhidlbase \
+ libhidltransport \
+ libhwbinder \
+ liblog \
+ libutils \
+ android.hardware.contexthub@1.0 \
+
+include $(BUILD_EXECUTABLE)
diff --git a/contexthub/1.0/default/Contexthub.cpp b/contexthub/1.0/default/Contexthub.cpp
new file mode 100644
index 0000000..d530a87
--- /dev/null
+++ b/contexthub/1.0/default/Contexthub.cpp
@@ -0,0 +1,528 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#include "Contexthub.h"
+
+#include <inttypes.h>
+
+#include <android/log.h>
+#include <android/hardware/contexthub/1.0/IContexthub.h>
+#include <hardware/context_hub.h>
+
+#undef LOG_TAG
+#define LOG_TAG "ContextHubHalAdapter"
+
+namespace android {
+namespace hardware {
+namespace contexthub {
+namespace V1_0 {
+namespace implementation {
+
+static constexpr uint64_t ALL_APPS = UINT64_C(0xFFFFFFFFFFFFFFFF);
+
+Contexthub::Contexthub()
+ : mInitCheck(NO_INIT),
+ mContextHubModule(nullptr),
+ mIsTransactionPending(false) {
+ const hw_module_t *module;
+
+ mInitCheck = hw_get_module(CONTEXT_HUB_MODULE_ID, &module);
+
+ if (mInitCheck != OK) {
+ ALOGE("Could not load %s module: %s", CONTEXT_HUB_MODULE_ID, strerror(-mInitCheck));
+ } else if (module == nullptr) {
+ ALOGE("hal returned succes but a null module!");
+ // Assign an error, this should not really happen...
+ mInitCheck = UNKNOWN_ERROR;
+ } else {
+ ALOGI("Loaded Context Hub module");
+ mContextHubModule = reinterpret_cast<const context_hub_module_t *>(module);
+ }
+}
+
+bool Contexthub::setOsAppAsDestination(hub_message_t *msg, int hubId) {
+ if (!isValidHubId(hubId)) {
+ ALOGW("%s: Hub information is null for hubHandle %d",
+ __FUNCTION__,
+ hubId);
+ return false;
+ } else {
+ msg->app_name = mCachedHubInfo[hubId].osAppName;
+ return true;
+ }
+}
+
+Return<void> Contexthub::getHubs(getHubs_cb _hidl_cb) {
+ std::vector<ContextHub> hubs;
+ if (isInitialized()) {
+ const context_hub_t *hubArray = nullptr;
+ size_t numHubs;
+
+ // Explicitly discarding const. HAL method discards it.
+ numHubs = mContextHubModule->get_hubs(const_cast<context_hub_module_t *>(mContextHubModule),
+ &hubArray);
+ ALOGI("Context Hub Hal Adapter reports %zu hubs", numHubs);
+
+ mCachedHubInfo.clear();
+
+ for (size_t i = 0; i < numHubs; i++) {
+ CachedHubInformation info;
+ ContextHub c;
+
+ c.hubId = hubArray[i].hub_id;
+ c.name = hubArray[i].name;
+ c.vendor = hubArray[i].vendor;
+ c.toolchain = hubArray[i].toolchain;
+ c.toolchainVersion = hubArray[i].toolchain_version;
+ c.platformVersion = hubArray[i].platform_version;
+ c.maxSupportedMsgLen = hubArray[i].max_supported_msg_len;
+ c.peakMips = hubArray[i].peak_mips;
+ c.peakPowerDrawMw = hubArray[i].peak_power_draw_mw;
+ c.stoppedPowerDrawMw = hubArray[i].stopped_power_draw_mw;
+ c.sleepPowerDrawMw = hubArray[i].sleep_power_draw_mw;
+
+ info.callBack = nullptr;
+ info.osAppName = hubArray[i].os_app_name;
+ mCachedHubInfo[hubArray[i].hub_id] = info;
+
+ hubs.push_back(c);
+ }
+ } else {
+ ALOGW("Context Hub Hal Adapter not initialized");
+ }
+
+ _hidl_cb(hubs);
+ return Void();
+}
+
+bool Contexthub::isValidHubId(uint32_t hubId) {
+ if (!mCachedHubInfo.count(hubId)) {
+ ALOGW("Hub information not found for hubId %" PRIu32, hubId);
+ return false;
+ } else {
+ return true;
+ }
+}
+
+sp<IContexthubCallback> Contexthub::getCallBackForHubId(uint32_t hubId) {
+ if (!isValidHubId(hubId)) {
+ return nullptr;
+ } else {
+ return mCachedHubInfo[hubId].callBack;
+ }
+}
+
+Return<Result> Contexthub::sendMessageToHub(uint32_t hubId,
+ const ContextHubMsg &msg) {
+ if (!isInitialized()) {
+ return Result::NOT_INIT;
+ }
+
+ if (!isValidHubId(hubId) || msg.msg.size() > UINT32_MAX) {
+ return Result::BAD_PARAMS;
+ }
+
+ hub_message_t txMsg = {
+ .app_name.id = msg.appName,
+ .message_type = msg.msgType,
+ .message_len = static_cast<uint32_t>(msg.msg.size()), // Note the check above
+ .message = static_cast<const uint8_t *>(msg.msg.data()),
+ };
+
+ ALOGI("Sending msg of type %" PRIu32 ", size %" PRIu32 " to app 0x%" PRIx64,
+ txMsg.message_type,
+ txMsg.message_len,
+ txMsg.app_name.id);
+
+ if(mContextHubModule->send_message(hubId, &txMsg) != 0) {
+ return Result::TRANSACTION_FAILED;
+ }
+
+ return Result::OK;
+}
+
+Return<Result> Contexthub::reboot(uint32_t hubId) {
+ if (!isInitialized()) {
+ return Result::NOT_INIT;
+ }
+
+ hub_message_t msg;
+
+ if (setOsAppAsDestination(&msg, hubId) == false) {
+ return Result::BAD_PARAMS;
+ }
+
+ msg.message_type = CONTEXT_HUB_OS_REBOOT;
+ msg.message_len = 0;
+ msg.message = nullptr;
+
+ if(mContextHubModule->send_message(hubId, &msg) != 0) {
+ return Result::TRANSACTION_FAILED;
+ } else {
+ return Result::OK;
+ }
+}
+
+Return<Result> Contexthub::registerCallback(uint32_t hubId,
+ const sp<IContexthubCallback> &cb) {
+ Return<Result> retVal = Result::BAD_PARAMS;
+
+ if (!isInitialized()) {
+ // Not initilalized
+ ALOGW("Context hub not initialized successfully");
+ retVal = Result::NOT_INIT;
+ } else if (!isValidHubId(hubId)) {
+ // Initialized, but hubId is not valid
+ retVal = Result::BAD_PARAMS;
+ } else if (mContextHubModule->subscribe_messages(hubId,
+ contextHubCb,
+ this) == 0) {
+ // Initialized && valid hub && subscription successful
+ retVal = Result::OK;
+ mCachedHubInfo[hubId].callBack = cb;
+ } else {
+ // Initalized && valid hubId - but subscription unsuccessful
+ // This is likely an internal error in the HAL implementation, but we
+ // cannot add more information.
+ ALOGW("Could not subscribe to the hub for callback");
+ retVal = Result::UNKNOWN_FAILURE;
+ }
+
+ return retVal;
+}
+
+static bool isValidOsStatus(const uint8_t *msg,
+ size_t msgLen,
+ status_response_t *rsp) {
+ // Workaround a bug in some HALs
+ if (msgLen == 1) {
+ rsp->result = msg[0];
+ return true;
+ }
+
+ if (msg == nullptr || msgLen != sizeof(*rsp)) {
+ ALOGI("Received invalid response (is null : %d, size %zu)",
+ msg == nullptr ? 1 : 0,
+ msgLen);
+ return false;
+ }
+
+ memcpy(rsp, msg, sizeof(*rsp));
+
+ // No sanity checks on return values
+ return true;
+}
+
+int Contexthub::handleOsMessage(sp<IContexthubCallback> cb,
+ uint32_t msgType,
+ const uint8_t *msg,
+ int msgLen) {
+ int retVal = -1;
+
+
+ switch(msgType) {
+ case CONTEXT_HUB_APPS_ENABLE:
+ case CONTEXT_HUB_APPS_DISABLE:
+ case CONTEXT_HUB_LOAD_APP:
+ case CONTEXT_HUB_UNLOAD_APP:
+ {
+ struct status_response_t rsp;
+ TransactionResult result;
+ if (isValidOsStatus(msg, msgLen, &rsp) && rsp.result == 0) {
+ retVal = 0;
+ result = TransactionResult::SUCCESS;
+ } else {
+ result = TransactionResult::FAILURE;
+ }
+
+ if (cb != nullptr) {
+ cb->handleTxnResult(mTransactionId, result);
+ }
+ retVal = 0;
+ mIsTransactionPending = false;
+ break;
+ }
+
+ case CONTEXT_HUB_QUERY_APPS:
+ {
+ std::vector<HubAppInfo> apps;
+ int numApps = msgLen / sizeof(hub_app_info);
+ const hub_app_info *unalignedInfoAddr = reinterpret_cast<const hub_app_info *>(msg);
+
+ for (int i = 0; i < numApps; i++) {
+ hub_app_info query_info;
+ memcpy(&query_info, &unalignedInfoAddr[i], sizeof(query_info));
+ HubAppInfo app;
+ app.appId = query_info.app_name.id;
+ app.version = query_info.version;
+ // TODO :: Add memory ranges
+
+ apps.push_back(app);
+ }
+
+ if (cb != nullptr) {
+ cb->handleAppsInfo(apps);
+ }
+ retVal = 0;
+ break;
+ }
+
+ case CONTEXT_HUB_QUERY_MEMORY:
+ {
+ // Deferring this use
+ retVal = 0;
+ break;
+ }
+
+ case CONTEXT_HUB_OS_REBOOT:
+ {
+ mIsTransactionPending = false;
+ if (cb != nullptr) {
+ cb->handleHubEvent(AsyncEventType::RESTARTED);
+ }
+ retVal = 0;
+ break;
+ }
+
+ default:
+ {
+ retVal = -1;
+ break;
+ }
+ }
+
+ return retVal;
+}
+
+int Contexthub::contextHubCb(uint32_t hubId,
+ const struct hub_message_t *rxMsg,
+ void *cookie) {
+ Contexthub *obj = static_cast<Contexthub *>(cookie);
+
+ if (rxMsg == nullptr) {
+ ALOGW("Ignoring NULL message");
+ return -1;
+ }
+
+ if (!obj->isValidHubId(hubId)) {
+ ALOGW("Invalid hub Id %" PRIu32, hubId);
+ return -1;
+ }
+
+ sp<IContexthubCallback> cb = obj->getCallBackForHubId(hubId);
+
+ if (cb == nullptr) {
+ // This should not ever happen
+ ALOGW("No callback registered, returning");
+ return -1;
+ }
+
+ if (rxMsg->message_type < CONTEXT_HUB_TYPE_PRIVATE_MSG_BASE) {
+ obj->handleOsMessage(cb,
+ rxMsg->message_type,
+ static_cast<const uint8_t *>(rxMsg->message),
+ rxMsg->message_len);
+ } else {
+ ContextHubMsg msg;
+
+ msg.appName = rxMsg->app_name.id;
+ msg.msgType = rxMsg->message_type;
+ msg.msg = std::vector<uint8_t>(static_cast<const uint8_t *>(rxMsg->message),
+ static_cast<const uint8_t *>(rxMsg->message) +
+ rxMsg->message_len);
+
+ cb->handleClientMsg(msg);
+ }
+
+ return 0;
+}
+
+Return<Result> Contexthub::unloadNanoApp(uint32_t hubId,
+ uint64_t appId,
+ uint32_t transactionId) {
+ if (!isInitialized()) {
+ return Result::NOT_INIT;
+ }
+
+ if (mIsTransactionPending) {
+ return Result::TRANSACTION_PENDING;
+ }
+
+ hub_message_t msg;
+
+ if (setOsAppAsDestination(&msg, hubId) == false) {
+ return Result::BAD_PARAMS;
+ }
+
+ struct apps_disable_request_t req;
+
+ msg.message_type = CONTEXT_HUB_UNLOAD_APP;
+ msg.message_len = sizeof(req);
+ msg.message = &req;
+ req.app_name.id = appId;
+
+ if(mContextHubModule->send_message(hubId, &msg) != 0) {
+ return Result::TRANSACTION_FAILED;
+ } else {
+ mTransactionId = transactionId;
+ mIsTransactionPending = true;
+ return Result::OK;
+ }
+}
+
+Return<Result> Contexthub::loadNanoApp(uint32_t hubId,
+ const ::android::hardware::hidl_vec<uint8_t>& appBinary,
+ uint32_t transactionId) {
+ if (!isInitialized()) {
+ return Result::NOT_INIT;
+ }
+
+ if (mIsTransactionPending) {
+ return Result::TRANSACTION_PENDING;
+ }
+
+ hub_message_t hubMsg;
+
+ if (setOsAppAsDestination(&hubMsg, hubId) == false) {
+ return Result::BAD_PARAMS;
+ }
+
+ hubMsg.message_type = CONTEXT_HUB_LOAD_APP;
+ hubMsg.message_len = appBinary.size();
+ hubMsg.message = appBinary.data();
+
+ if(mContextHubModule->send_message(hubId, &hubMsg) != 0) {
+ return Result::TRANSACTION_FAILED;
+ } else {
+ mTransactionId = transactionId;
+ mIsTransactionPending = true;
+ return Result::OK;
+ }
+}
+
+Return<Result> Contexthub::enableNanoApp(uint32_t hubId,
+ uint64_t appId,
+ uint32_t transactionId) {
+ if (!isInitialized()) {
+ return Result::NOT_INIT;
+ }
+
+ if (mIsTransactionPending) {
+ return Result::TRANSACTION_PENDING;
+ }
+
+ hub_message_t msg;
+
+ if (setOsAppAsDestination(&msg, hubId) == false) {
+ return Result::BAD_PARAMS;
+ }
+
+ struct apps_enable_request_t req;
+
+ msg.message_type = CONTEXT_HUB_APPS_ENABLE;
+ msg.message_len = sizeof(req);
+ req.app_name.id = appId;
+ msg.message = &req;
+
+ if(mContextHubModule->send_message(hubId, &msg) != 0) {
+ return Result::TRANSACTION_FAILED;
+ } else {
+ mTransactionId = transactionId;
+ mIsTransactionPending = true;
+ return Result::OK;
+ }
+}
+
+Return<Result> Contexthub::disableNanoApp(uint32_t hubId,
+ uint64_t appId,
+ uint32_t transactionId) {
+ if (!isInitialized()) {
+ return Result::NOT_INIT;
+ }
+
+ if (mIsTransactionPending) {
+ return Result::TRANSACTION_PENDING;
+ }
+
+ hub_message_t msg;
+
+ if (setOsAppAsDestination(&msg, hubId) == false) {
+ return Result::BAD_PARAMS;
+ }
+
+ struct apps_disable_request_t req;
+
+ msg.message_type = CONTEXT_HUB_APPS_DISABLE;
+ msg.message_len = sizeof(req);
+ req.app_name.id = appId;
+ msg.message = &req;
+
+ if(mContextHubModule->send_message(hubId, &msg) != 0) {
+ return Result::TRANSACTION_FAILED;
+ } else {
+ mTransactionId = transactionId;
+ mIsTransactionPending = true;
+ return Result::OK;
+ }
+}
+
+Return<Result> Contexthub::queryApps(uint32_t hubId) {
+ if (!isInitialized()) {
+ return Result::NOT_INIT;
+ }
+
+ hub_message_t msg;
+
+ if (setOsAppAsDestination(&msg, hubId) == false) {
+ ALOGW("Could not find hubId %" PRIu32, hubId);
+ return Result::BAD_PARAMS;
+ }
+
+ query_apps_request_t payload;
+ payload.app_name.id = ALL_APPS; // TODO : Pass this in as a parameter
+ msg.message = &payload;
+ msg.message_len = sizeof(payload);
+ msg.message_type = CONTEXT_HUB_QUERY_APPS;
+
+ if(mContextHubModule->send_message(hubId, &msg) != 0) {
+ ALOGW("Query Apps sendMessage failed");
+ return Result::TRANSACTION_FAILED;
+ }
+
+ return Result::OK;
+}
+
+bool Contexthub::isInitialized() {
+ return (mInitCheck == OK && mContextHubModule != nullptr);
+}
+
+IContexthub *HIDL_FETCH_IContexthub(const char * halName) {
+ ALOGI("%s Called for %s", __FUNCTION__, halName);
+ Contexthub *contexthub = new Contexthub;
+
+ if (!contexthub->isInitialized()) {
+ delete contexthub;
+ contexthub = nullptr;
+ }
+
+ return contexthub;
+}
+
+} // namespace implementation
+} // namespace V1_0
+} // namespace contexthub
+} // namespace hardware
+} // namespace android
diff --git a/contexthub/1.0/default/Contexthub.h b/contexthub/1.0/default/Contexthub.h
new file mode 100644
index 0000000..0883ce8
--- /dev/null
+++ b/contexthub/1.0/default/Contexthub.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2016 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_CONTEXTHUB_V1_0_CONTEXTHUB_H_
+#define ANDROID_HARDWARE_CONTEXTHUB_V1_0_CONTEXTHUB_H_
+
+#include <unordered_map>
+
+#include <android/hardware/contexthub/1.0/IContexthub.h>
+#include <hardware/context_hub.h>
+
+namespace android {
+namespace hardware {
+namespace contexthub {
+namespace V1_0 {
+namespace implementation {
+
+struct Contexthub : public ::android::hardware::contexthub::V1_0::IContexthub {
+ Contexthub();
+
+ Return<void> getHubs(getHubs_cb _hidl_cb) override;
+
+ Return<Result> registerCallback(uint32_t hubId,
+ const sp<IContexthubCallback> &cb) override;
+
+ Return<Result> sendMessageToHub(uint32_t hubId,
+ const ContextHubMsg &msg) override;
+
+ Return<Result> loadNanoApp(uint32_t hubId,
+ const ::android::hardware::hidl_vec<uint8_t>& appBinary,
+ uint32_t transactionId) override;
+
+ Return<Result> unloadNanoApp(uint32_t hubId,
+ uint64_t appId,
+ uint32_t transactionId) override;
+
+ Return<Result> enableNanoApp(uint32_t hubId,
+ uint64_t appId,
+ uint32_t transactionId) override;
+
+ Return<Result> disableNanoApp(uint32_t hubId,
+ uint64_t appId,
+ uint32_t transactionId) override;
+
+ Return<Result> queryApps(uint32_t hubId) override;
+
+ Return<Result> reboot(uint32_t hubId);
+
+ bool isInitialized();
+
+private:
+
+ struct CachedHubInformation{
+ struct hub_app_name_t osAppName;
+ sp<IContexthubCallback> callBack;
+ };
+
+ status_t mInitCheck;
+ const struct context_hub_module_t *mContextHubModule;
+ std::unordered_map<uint32_t, CachedHubInformation> mCachedHubInfo;
+
+ sp<IContexthubCallback> mCb;
+ bool mIsTransactionPending;
+ uint32_t mTransactionId;
+
+ bool isValidHubId(uint32_t hubId);
+
+ sp<IContexthubCallback> getCallBackForHubId(uint32_t hubId);
+
+ int handleOsMessage(sp<IContexthubCallback> cb,
+ uint32_t msgType,
+ const uint8_t *msg,
+ int msgLen);
+
+ static int contextHubCb(uint32_t hubId,
+ const struct hub_message_t *rxMsg,
+ void *cookie);
+
+ bool setOsAppAsDestination(hub_message_t *msg, int hubId);
+
+ DISALLOW_COPY_AND_ASSIGN(Contexthub);
+};
+
+extern "C" IContexthub *HIDL_FETCH_IContexthub(const char *name);
+
+} // namespace implementation
+} // namespace V1_0
+} // namespace contexthub
+} // namespace hardware
+} // namespace android
+
+#endif // ANDROID_HARDWARE_CONTEXTHUB_V1_0_CONTEXTHUB_H_
diff --git a/contexthub/1.0/default/android.hardware.contexthub@1.0-service.rc b/contexthub/1.0/default/android.hardware.contexthub@1.0-service.rc
new file mode 100644
index 0000000..8dba85f
--- /dev/null
+++ b/contexthub/1.0/default/android.hardware.contexthub@1.0-service.rc
@@ -0,0 +1,4 @@
+service contexthub-hal-1-0 /system/bin/hw/android.hardware.contexthub@1.0-service
+ class hal
+ user system
+ group system
diff --git a/contexthub/1.0/default/service.cpp b/contexthub/1.0/default/service.cpp
new file mode 100644
index 0000000..db9a4e7
--- /dev/null
+++ b/contexthub/1.0/default/service.cpp
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2016 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.contexthub@1.0-service"
+
+#include <android/hardware/contexthub/1.0/IContexthub.h>
+#include <hidl/LegacySupport.h>
+
+using android::hardware::contexthub::V1_0::IContexthub;
+using android::hardware::defaultPassthroughServiceImplementation;
+
+int main() {
+ return defaultPassthroughServiceImplementation<IContexthub>("context_hub");
+}
diff --git a/contexthub/Android.bp b/contexthub/Android.bp
index bbb3e4b..ba90f2c 100644
--- a/contexthub/Android.bp
+++ b/contexthub/Android.bp
@@ -1,4 +1,5 @@
// This is an autogenerated file, do not edit.
subdirs = [
"1.0",
+ "1.0/default",
]