Audio V4: Copy 2.0 audiohal to 4.0
For easier review of the changes, first copy 2.0 to 4.0, the changes
are made in the following patch.
Bug: 38184704
Test: compile
Change-Id: I5bf16e5f8e7b61cc13e86c06b899ec4e6624a961
Merged-In: I5bf16e5f8e7b61cc13e86c06b899ec4e6624a961
Cherry-picked from master
Signed-off-by: Kevin Rocard <krocard@google.com>
diff --git a/media/libaudiohal/4.0/ConversionHelperHidl.h b/media/libaudiohal/4.0/ConversionHelperHidl.h
new file mode 100644
index 0000000..c356f37
--- /dev/null
+++ b/media/libaudiohal/4.0/ConversionHelperHidl.h
@@ -0,0 +1,83 @@
+/*
+ * 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_CONVERSION_HELPER_HIDL_H
+#define ANDROID_HARDWARE_CONVERSION_HELPER_HIDL_H
+
+#include <android/hardware/audio/2.0/types.h>
+#include <hidl/HidlSupport.h>
+#include <utils/String8.h>
+
+using ::android::hardware::audio::V2_0::ParameterValue;
+using ::android::hardware::Return;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+
+namespace android {
+
+class ConversionHelperHidl {
+ protected:
+ static status_t keysFromHal(const String8& keys, hidl_vec<hidl_string> *hidlKeys);
+ static status_t parametersFromHal(const String8& kvPairs, hidl_vec<ParameterValue> *hidlParams);
+ static void parametersToHal(const hidl_vec<ParameterValue>& parameters, String8 *values);
+
+ ConversionHelperHidl(const char* className);
+
+ template<typename R, typename T>
+ status_t processReturn(const char* funcName, const Return<R>& ret, T *retval) {
+ if (ret.isOk()) {
+ // This way it also works for enum class to unscoped enum conversion.
+ *retval = static_cast<T>(static_cast<R>(ret));
+ return OK;
+ }
+ return processReturn(funcName, ret);
+ }
+
+ template<typename T>
+ status_t processReturn(const char* funcName, const Return<T>& ret) {
+ if (!ret.isOk()) {
+ emitError(funcName, ret.description().c_str());
+ }
+ return ret.isOk() ? OK : FAILED_TRANSACTION;
+ }
+
+ status_t processReturn(const char* funcName, const Return<hardware::audio::V2_0::Result>& ret) {
+ if (!ret.isOk()) {
+ emitError(funcName, ret.description().c_str());
+ }
+ return ret.isOk() ? analyzeResult(ret) : FAILED_TRANSACTION;
+ }
+
+ template<typename T>
+ status_t processReturn(
+ const char* funcName, const Return<T>& ret, hardware::audio::V2_0::Result retval) {
+ if (!ret.isOk()) {
+ emitError(funcName, ret.description().c_str());
+ }
+ return ret.isOk() ? analyzeResult(retval) : FAILED_TRANSACTION;
+ }
+
+ private:
+ const char* mClassName;
+
+ static status_t analyzeResult(const hardware::audio::V2_0::Result& result);
+
+ void emitError(const char* funcName, const char* description);
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_CONVERSION_HELPER_HIDL_H