Wifi: Uprev Wifi HAL to 1.4
Move Wifi HAL from 1.3 to 1.4
This commit also include adding the VINTF fragment definition for IWifi
hal.
Bug: 138243400
Test: Builds and wifi works
Change-Id: I5ec9b21f8d6b7e1b5b5e47e26681dd4ed3ffcc2d
diff --git a/wifi/1.4/default/hidl_callback_util.h b/wifi/1.4/default/hidl_callback_util.h
new file mode 100644
index 0000000..fc601b8
--- /dev/null
+++ b/wifi/1.4/default/hidl_callback_util.h
@@ -0,0 +1,124 @@
+/*
+ * 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.
+ */
+
+#ifndef HIDL_CALLBACK_UTIL_H_
+#define HIDL_CALLBACK_UTIL_H_
+
+#include <set>
+
+#include <hidl/HidlSupport.h>
+
+namespace {
+// Type of callback invoked by the death handler.
+using on_death_cb_function = std::function<void(uint64_t)>;
+
+// Private class used to keep track of death of individual
+// callbacks stored in HidlCallbackHandler.
+template <typename CallbackType>
+class HidlDeathHandler : public android::hardware::hidl_death_recipient {
+ public:
+ HidlDeathHandler(const on_death_cb_function& user_cb_function)
+ : cb_function_(user_cb_function) {}
+ ~HidlDeathHandler() = default;
+
+ // Death notification for callbacks.
+ void serviceDied(
+ uint64_t cookie,
+ const android::wp<android::hidl::base::V1_0::IBase>& /* who */)
+ override {
+ cb_function_(cookie);
+ }
+
+ private:
+ on_death_cb_function cb_function_;
+
+ DISALLOW_COPY_AND_ASSIGN(HidlDeathHandler);
+};
+} // namespace
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_4 {
+namespace implementation {
+namespace hidl_callback_util {
+template <typename CallbackType>
+// Provides a class to manage callbacks for the various HIDL interfaces and
+// handle the death of the process hosting each callback.
+class HidlCallbackHandler {
+ public:
+ HidlCallbackHandler()
+ : death_handler_(new HidlDeathHandler<CallbackType>(
+ std::bind(&HidlCallbackHandler::onObjectDeath, this,
+ std::placeholders::_1))) {}
+ ~HidlCallbackHandler() = default;
+
+ bool addCallback(const sp<CallbackType>& cb) {
+ // TODO(b/33818800): Can't compare proxies yet. So, use the cookie
+ // (callback proxy's raw pointer) to track the death of individual
+ // clients.
+ uint64_t cookie = reinterpret_cast<uint64_t>(cb.get());
+ if (cb_set_.find(cb) != cb_set_.end()) {
+ LOG(WARNING) << "Duplicate death notification registration";
+ return true;
+ }
+ if (!cb->linkToDeath(death_handler_, cookie)) {
+ LOG(ERROR) << "Failed to register death notification";
+ return false;
+ }
+ cb_set_.insert(cb);
+ return true;
+ }
+
+ const std::set<android::sp<CallbackType>>& getCallbacks() {
+ return cb_set_;
+ }
+
+ // Death notification for callbacks.
+ void onObjectDeath(uint64_t cookie) {
+ CallbackType* cb = reinterpret_cast<CallbackType*>(cookie);
+ const auto& iter = cb_set_.find(cb);
+ if (iter == cb_set_.end()) {
+ LOG(ERROR) << "Unknown callback death notification received";
+ return;
+ }
+ cb_set_.erase(iter);
+ LOG(DEBUG) << "Dead callback removed from list";
+ }
+
+ void invalidate() {
+ for (const sp<CallbackType>& cb : cb_set_) {
+ if (!cb->unlinkToDeath(death_handler_)) {
+ LOG(ERROR) << "Failed to deregister death notification";
+ }
+ }
+ cb_set_.clear();
+ }
+
+ private:
+ std::set<sp<CallbackType>> cb_set_;
+ sp<HidlDeathHandler<CallbackType>> death_handler_;
+
+ DISALLOW_COPY_AND_ASSIGN(HidlCallbackHandler);
+};
+
+} // namespace hidl_callback_util
+} // namespace implementation
+} // namespace V1_4
+} // namespace wifi
+} // namespace hardware
+} // namespace android
+#endif // HIDL_CALLBACK_UTIL_H_