Audio HAL: Add new HAL for sound dose

The new HAL is running as part of the HIDL audio HAL process. It is
meant as a workaround for HAL implementors that can not switch to the
audio AIDL yet and need to certify with IEC62368-1 3rd edition or
EN50332-3. Note that this HAL will be deprecated in the future.

Test: atest VtsHalSoundDoseFactoryTargetTest & flash bluejay-userdebug
Bug: 257937004
Change-Id: Ifbbf235bab58c1ee2f1ea246cf98c9e8966893c0
diff --git a/audio/aidl/sounddose/default/SoundDoseFactory.cpp b/audio/aidl/sounddose/default/SoundDoseFactory.cpp
new file mode 100644
index 0000000..50796d0
--- /dev/null
+++ b/audio/aidl/sounddose/default/SoundDoseFactory.cpp
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2022 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 "AHAL_SoundDoseFactory"
+
+#include "SoundDoseFactory.h"
+
+#include <android-base/logging.h>
+#include <core-impl/SoundDose.h>
+
+namespace aidl::android::hardware::audio::sounddose {
+
+using ::aidl::android::hardware::audio::core::SoundDose;
+
+ndk::ScopedAStatus SoundDoseFactory::getSoundDose(const std::string& in_module,
+                                                  std::shared_ptr<ISoundDose>* _aidl_return) {
+    auto soundDoseIt = mSoundDoseBinderMap.find(in_module);
+    if (soundDoseIt != mSoundDoseBinderMap.end()) {
+        *_aidl_return = ISoundDose::fromBinder(soundDoseIt->second);
+
+        LOG(DEBUG) << __func__
+                   << ": returning cached instance of ISoundDose: " << _aidl_return->get()
+                   << " for module " << in_module;
+        return ndk::ScopedAStatus::ok();
+    }
+
+    auto soundDose = ndk::SharedRefBase::make<SoundDose>();
+    mSoundDoseBinderMap[in_module] = soundDose->asBinder();
+    *_aidl_return = soundDose;
+
+    LOG(DEBUG) << __func__ << ": returning new instance of ISoundDose: " << _aidl_return->get()
+               << " for module " << in_module;
+    return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace aidl::android::hardware::audio::sounddose