audio HAL: initial VTS tests

Tests basic functionality for enumerating
capabilities of an audio module, audio patches
creation, and opening of I/O streams.

Bug: 205884982
Test: atest VtsHalAudioCoreTargetTest
Merged-In: I7c7c3c7008f2fc43db1542455c74444a08e55534
Change-Id: I7c7c3c7008f2fc43db1542455c74444a08e55534
(cherry picked from commit 7abc70f9085e56aac85c97b30c8c4c1a3b97b63f)
diff --git a/audio/aidl/vts/ModuleConfig.h b/audio/aidl/vts/ModuleConfig.h
new file mode 100644
index 0000000..2e86b97
--- /dev/null
+++ b/audio/aidl/vts/ModuleConfig.h
@@ -0,0 +1,131 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <optional>
+#include <set>
+#include <utility>
+#include <vector>
+
+#include <android/hardware/audio/core/AudioRoute.h>
+#include <android/hardware/audio/core/IModule.h>
+#include <android/media/audio/common/AudioPort.h>
+#include <binder/Status.h>
+
+class ModuleConfig {
+  public:
+    using SrcSinkPair = std::pair<android::media::audio::common::AudioPortConfig,
+                                  android::media::audio::common::AudioPortConfig>;
+    using SrcSinkGroup =
+            std::pair<android::hardware::audio::core::AudioRoute, std::vector<SrcSinkPair>>;
+
+    explicit ModuleConfig(android::hardware::audio::core::IModule* module);
+    android::binder::Status getStatus() const { return mStatus; }
+    std::string getError() const { return mStatus.toString8().c_str(); }
+
+    std::vector<android::media::audio::common::AudioPort> getInputMixPorts() const;
+    std::vector<android::media::audio::common::AudioPort> getOutputMixPorts() const;
+    std::vector<android::media::audio::common::AudioPort> getMixPorts(bool isInput) const {
+        return isInput ? getInputMixPorts() : getOutputMixPorts();
+    }
+
+    std::vector<android::media::audio::common::AudioPort> getAttachedDevicesPortsForMixPort(
+            bool isInput, const android::media::audio::common::AudioPort& mixPort) const {
+        return isInput ? getAttachedSourceDevicesPortsForMixPort(mixPort)
+                       : getAttachedSinkDevicesPortsForMixPort(mixPort);
+    }
+    std::vector<android::media::audio::common::AudioPort> getAttachedSinkDevicesPortsForMixPort(
+            const android::media::audio::common::AudioPort& mixPort) const;
+    std::vector<android::media::audio::common::AudioPort> getAttachedSourceDevicesPortsForMixPort(
+            const android::media::audio::common::AudioPort& mixPort) const;
+    std::optional<android::media::audio::common::AudioPort> getSourceMixPortForAttachedDevice()
+            const;
+
+    std::optional<SrcSinkPair> getNonRoutableSrcSinkPair(bool isInput) const;
+    std::optional<SrcSinkPair> getRoutableSrcSinkPair(bool isInput) const;
+    std::vector<SrcSinkGroup> getRoutableSrcSinkGroups(bool isInput) const;
+
+    std::vector<android::media::audio::common::AudioPortConfig> getPortConfigsForMixPorts() const {
+        auto inputs = generateInputAudioMixPortConfigs(getInputMixPorts(), false);
+        auto outputs = generateOutputAudioMixPortConfigs(getOutputMixPorts(), false);
+        inputs.insert(inputs.end(), outputs.begin(), outputs.end());
+        return inputs;
+    }
+    std::vector<android::media::audio::common::AudioPortConfig> getPortConfigsForMixPorts(
+            bool isInput) const {
+        return isInput ? generateInputAudioMixPortConfigs(getInputMixPorts(), false)
+                       : generateOutputAudioMixPortConfigs(getOutputMixPorts(), false);
+    }
+    std::vector<android::media::audio::common::AudioPortConfig> getPortConfigsForMixPorts(
+            bool isInput, const android::media::audio::common::AudioPort& port) const {
+        return isInput ? generateInputAudioMixPortConfigs({port}, false)
+                       : generateOutputAudioMixPortConfigs({port}, false);
+    }
+    std::optional<android::media::audio::common::AudioPortConfig> getSingleConfigForMixPort(
+            bool isInput) const {
+        const auto config = isInput ? generateInputAudioMixPortConfigs(getInputMixPorts(), true)
+                                    : generateOutputAudioMixPortConfigs(getOutputMixPorts(), true);
+        // TODO: Avoid returning configs for offload since they require an extra
+        //       argument to openOutputStream.
+        if (!config.empty()) {
+            return *config.begin();
+        } else {
+            return {};
+        }
+    }
+    std::optional<android::media::audio::common::AudioPortConfig> getSingleConfigForMixPort(
+            bool isInput, const android::media::audio::common::AudioPort& port) const {
+        const auto config = isInput ? generateInputAudioMixPortConfigs({port}, true)
+                                    : generateOutputAudioMixPortConfigs({port}, true);
+        if (!config.empty()) {
+            return *config.begin();
+        } else {
+            return {};
+        }
+    }
+
+    android::media::audio::common::AudioPortConfig getSingleConfigForDevicePort(
+            const android::media::audio::common::AudioPort& port) const {
+        for (const auto& config : mInitialConfigs) {
+            if (config.portId == port.id) return config;
+        }
+        const auto config = generateAudioDevicePortConfigs({port}, true);
+        return *config.begin();
+    }
+
+  private:
+    std::vector<android::media::audio::common::AudioPortConfig> generateInputAudioMixPortConfigs(
+            const std::vector<android::media::audio::common::AudioPort>& ports,
+            bool singleProfile) const;
+    std::vector<android::media::audio::common::AudioPortConfig> generateOutputAudioMixPortConfigs(
+            const std::vector<android::media::audio::common::AudioPort>& ports,
+            bool singleProfile) const;
+
+    // Unlike MixPorts, the generator for DevicePorts always returns a non-empty
+    // vector for a non-empty input port list. If there are no profiles in the
+    // port, a vector with an empty config is returned.
+    std::vector<android::media::audio::common::AudioPortConfig> generateAudioDevicePortConfigs(
+            const std::vector<android::media::audio::common::AudioPort>& ports,
+            bool singleProfile) const;
+
+    android::binder::Status mStatus = android::binder::Status::ok();
+    std::vector<android::media::audio::common::AudioPort> mPorts;
+    std::vector<android::media::audio::common::AudioPortConfig> mInitialConfigs;
+    std::set<int32_t> mAttachedSinkDevicePorts;
+    std::set<int32_t> mAttachedSourceDevicePorts;
+    std::vector<android::hardware::audio::core::AudioRoute> mRoutes;
+};