Add API to query mmap policy information.
Bug: 193275465
Test: atest VtsHalAudioCoreTargetTest
Change-Id: I8374a6e7942d68259d820b5de1f4ec597f1b6473
diff --git a/audio/aidl/default/Module.cpp b/audio/aidl/default/Module.cpp
index a6e1d0d..9ca26d2 100644
--- a/audio/aidl/default/Module.cpp
+++ b/audio/aidl/default/Module.cpp
@@ -41,6 +41,9 @@
using aidl::android::media::audio::common::AudioFormatType;
using aidl::android::media::audio::common::AudioInputFlags;
using aidl::android::media::audio::common::AudioIoFlags;
+using aidl::android::media::audio::common::AudioMMapPolicy;
+using aidl::android::media::audio::common::AudioMMapPolicyInfo;
+using aidl::android::media::audio::common::AudioMMapPolicyType;
using aidl::android::media::audio::common::AudioMode;
using aidl::android::media::audio::common::AudioOffloadInfo;
using aidl::android::media::audio::common::AudioOutputFlags;
@@ -1080,4 +1083,66 @@
return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
+ndk::ScopedAStatus Module::getMmapPolicyInfos(AudioMMapPolicyType mmapPolicyType,
+ std::vector<AudioMMapPolicyInfo>* _aidl_return) {
+ LOG(DEBUG) << __func__ << ": mmap policy type " << toString(mmapPolicyType);
+ std::set<int32_t> mmapSinks;
+ std::set<int32_t> mmapSources;
+ auto& ports = getConfig().ports;
+ for (const auto& port : ports) {
+ if (port.flags.getTag() == AudioIoFlags::Tag::input &&
+ isBitPositionFlagSet(port.flags.get<AudioIoFlags::Tag::input>(),
+ AudioInputFlags::MMAP_NOIRQ)) {
+ mmapSinks.insert(port.id);
+ } else if (port.flags.getTag() == AudioIoFlags::Tag::output &&
+ isBitPositionFlagSet(port.flags.get<AudioIoFlags::Tag::output>(),
+ AudioOutputFlags::MMAP_NOIRQ)) {
+ mmapSources.insert(port.id);
+ }
+ }
+ for (const auto& route : getConfig().routes) {
+ if (mmapSinks.count(route.sinkPortId) != 0) {
+ // The sink is a mix port, add the sources if they are device ports.
+ for (int sourcePortId : route.sourcePortIds) {
+ auto sourcePortIt = findById<AudioPort>(ports, sourcePortId);
+ if (sourcePortIt == ports.end()) {
+ // This must not happen
+ LOG(ERROR) << __func__ << ": port id " << sourcePortId << " cannot be found";
+ continue;
+ }
+ if (sourcePortIt->ext.getTag() != AudioPortExt::Tag::device) {
+ // The source is not a device port, skip
+ continue;
+ }
+ AudioMMapPolicyInfo policyInfo;
+ policyInfo.device = sourcePortIt->ext.get<AudioPortExt::Tag::device>().device;
+ // Always return AudioMMapPolicy.AUTO if the device supports mmap for
+ // default implementation.
+ policyInfo.mmapPolicy = AudioMMapPolicy::AUTO;
+ _aidl_return->push_back(policyInfo);
+ }
+ } else {
+ auto sinkPortIt = findById<AudioPort>(ports, route.sinkPortId);
+ if (sinkPortIt == ports.end()) {
+ // This must not happen
+ LOG(ERROR) << __func__ << ": port id " << route.sinkPortId << " cannot be found";
+ continue;
+ }
+ if (sinkPortIt->ext.getTag() != AudioPortExt::Tag::device) {
+ // The sink is not a device port, skip
+ continue;
+ }
+ if (count_any(mmapSources, route.sourcePortIds)) {
+ AudioMMapPolicyInfo policyInfo;
+ policyInfo.device = sinkPortIt->ext.get<AudioPortExt::Tag::device>().device;
+ // Always return AudioMMapPolicy.AUTO if the device supports mmap for
+ // default implementation.
+ policyInfo.mmapPolicy = AudioMMapPolicy::AUTO;
+ _aidl_return->push_back(policyInfo);
+ }
+ }
+ }
+ return ndk::ScopedAStatus::ok();
+}
+
} // namespace aidl::android::hardware::audio::core