Interface between audio server and vibrator service
The haptic playback should be controlled by vibrator service. Via the
interface, audio server could notify vibrator service about starting or
stopping haptic playback and get vibrator intensity from vibrator
service. Vibrator service could call mute/unmute to control the haptic
playback.
Test: Manually
Change-Id: Iad24813977e4dea0d67a91f8f8b390a016ce4ca2
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 0d6ef46..7660f03 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -27,6 +27,7 @@
#include <sys/time.h>
#include <sys/resource.h>
+#include <android/os/IExternalVibratorService.h>
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <utils/Log.h>
@@ -122,6 +123,21 @@
}
}
+// Keep a strong reference to external vibrator service
+static sp<os::IExternalVibratorService> sExternalVibratorService;
+
+static sp<os::IExternalVibratorService> getExternalVibratorService() {
+ if (sExternalVibratorService == 0) {
+ sp <IBinder> binder = defaultServiceManager()->getService(
+ String16("external_vibrator_service"));
+ if (binder != 0) {
+ sExternalVibratorService =
+ interface_cast<os::IExternalVibratorService>(binder);
+ }
+ }
+ return sExternalVibratorService;
+}
+
// ----------------------------------------------------------------------------
std::string formatToString(audio_format_t format) {
@@ -318,6 +334,27 @@
return ret;
}
+/* static */
+int AudioFlinger::onExternalVibrationStart(const sp<os::ExternalVibration>& externalVibration) {
+ sp<os::IExternalVibratorService> evs = getExternalVibratorService();
+ if (evs != 0) {
+ int32_t ret;
+ binder::Status status = evs->onExternalVibrationStart(*externalVibration, &ret);
+ if (status.isOk()) {
+ return ret;
+ }
+ }
+ return AudioMixer::HAPTIC_SCALE_NONE;
+}
+
+/* static */
+void AudioFlinger::onExternalVibrationStop(const sp<os::ExternalVibration>& externalVibration) {
+ sp<os::IExternalVibratorService> evs = getExternalVibratorService();
+ if (evs != 0) {
+ evs->onExternalVibrationStop(*externalVibration);
+ }
+}
+
static const char * const audio_interfaces[] = {
AUDIO_HARDWARE_MODULE_ID_PRIMARY,
AUDIO_HARDWARE_MODULE_ID_A2DP,