Plumb the notification about audio HAL services update to APM
AudioFlinger registers a callback with libaudiohal to receive
notifications when new HAL services get registered. It relays
the notification to AudioPolicyManager via AudioSystem /
IAudioPolicyService interface.
Because AF / APM only interact via Binder interfaces and APM's
interface gets registered later than AF's, the notification
from AF is made asynchronous.
Bug: 149854039
Test: audio test on a regular phone configuration
audio test on a phone with MSD audio HAL module
Change-Id: I158e941b8f75e2a4614b9d84ca798b0f1f47aa6a
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index 2f67a18..f030ab0 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -792,6 +792,13 @@
// ---------------------------------------------------------------------------
+void AudioSystem::onNewAudioModulesAvailable()
+{
+ const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+ if (aps == 0) return;
+ aps->onNewAudioModulesAvailable();
+}
+
status_t AudioSystem::setDeviceConnectionState(audio_devices_t device,
audio_policy_dev_state_t state,
const char *device_address,
diff --git a/media/libaudioclient/IAudioPolicyService.cpp b/media/libaudioclient/IAudioPolicyService.cpp
index cccb131..f1213a3 100644
--- a/media/libaudioclient/IAudioPolicyService.cpp
+++ b/media/libaudioclient/IAudioPolicyService.cpp
@@ -113,6 +113,7 @@
REMOVE_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY,
GET_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY,
GET_DEVICES_FOR_ATTRIBUTES,
+ AUDIO_MODULES_UPDATED, // oneway
};
#define MAX_ITEMS_PER_LIST 1024
@@ -1451,6 +1452,13 @@
}
return NO_ERROR;
}
+
+ virtual void onNewAudioModulesAvailable()
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+ remote()->transact(AUDIO_MODULES_UPDATED, data, &reply, IBinder::FLAG_ONEWAY);
+ }
};
IMPLEMENT_META_INTERFACE(AudioPolicyService, "android.media.IAudioPolicyService");
@@ -1522,7 +1530,8 @@
case REMOVE_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY:
case GET_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY:
case GET_DEVICES_FOR_ATTRIBUTES:
- case SET_ALLOWED_CAPTURE_POLICY: {
+ case SET_ALLOWED_CAPTURE_POLICY:
+ case AUDIO_MODULES_UPDATED: {
if (!isServiceUid(IPCThreadState::self()->getCallingUid())) {
ALOGW("%s: transaction %d received from PID %d unauthorized UID %d",
__func__, code, IPCThreadState::self()->getCallingPid(),
@@ -2672,6 +2681,12 @@
return NO_ERROR;
}
+ case AUDIO_MODULES_UPDATED: {
+ CHECK_INTERFACE(IAudioPolicyService, data, reply);
+ onNewAudioModulesAvailable();
+ return NO_ERROR;
+ } break;
+
default:
return BBinder::onTransact(code, data, reply, flags);
}
diff --git a/media/libaudioclient/include/media/AudioSystem.h b/media/libaudioclient/include/media/AudioSystem.h
index 07a2292..aebc875 100644
--- a/media/libaudioclient/include/media/AudioSystem.h
+++ b/media/libaudioclient/include/media/AudioSystem.h
@@ -221,6 +221,7 @@
//
// IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
//
+ static void onNewAudioModulesAvailable();
static status_t setDeviceConnectionState(audio_devices_t device, audio_policy_dev_state_t state,
const char *device_address, const char *device_name,
audio_format_t encodedFormat);
diff --git a/media/libaudioclient/include/media/IAudioPolicyService.h b/media/libaudioclient/include/media/IAudioPolicyService.h
index 779ca43..ec3461e 100644
--- a/media/libaudioclient/include/media/IAudioPolicyService.h
+++ b/media/libaudioclient/include/media/IAudioPolicyService.h
@@ -42,6 +42,7 @@
//
// IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
//
+ virtual void onNewAudioModulesAvailable() = 0;
virtual status_t setDeviceConnectionState(audio_devices_t device,
audio_policy_dev_state_t state,
const char *device_address,