From 35964ba0768558fe61fd225a51015c1b56656ddc Mon Sep 17 00:00:00 2001
From: Erik Staats <estaats@google.com>
Date: Mon, 4 Oct 2021 15:17:32 -0700
Subject: dynamic_sensor: Add multi-HAL 2.1 flush support.

Bug: 201730055
Test: Verified that flush, batch, and activate sensor VTS tests pass.
Change-Id: I6721d9f8976b3ef9f6af02b2320833025b479ee6
---
 .../sensors/dynamic_sensor/DynamicSensorManager.cpp  | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

(limited to 'modules/sensors/dynamic_sensor/DynamicSensorManager.cpp')

diff --git a/modules/sensors/dynamic_sensor/DynamicSensorManager.cpp b/modules/sensors/dynamic_sensor/DynamicSensorManager.cpp
index 37b43132..be1a0044 100644
--- a/modules/sensors/dynamic_sensor/DynamicSensorManager.cpp
+++ b/modules/sensors/dynamic_sensor/DynamicSensorManager.cpp
@@ -76,7 +76,7 @@ bool DynamicSensorManager::owns(int handle) const {
 
 int DynamicSensorManager::activate(int handle, bool enable) {
     if (handle == mHandleRange.first) {
-        // ignored
+        mMetaSensorActive = enable;
         return 0;
     }
 
@@ -109,13 +109,17 @@ int DynamicSensorManager::setDelay(int handle, nsecs_t sample_period) {
 
 int DynamicSensorManager::flush(int handle) {
     if (handle == mHandleRange.first) {
-        // submit a flush complete here
-        static const sensors_event_t event = {
-            .sensor = mHandleRange.first,
-            .type = SENSOR_TYPE_META_DATA,
-            .timestamp = TIMESTAMP_AUTO_FILL,  // timestamp will be filled at dispatcher
-        };
-        submitEvent(nullptr, event);
+        if (mMetaSensorActive) {
+            static const sensors_event_t event = {
+                .sensor = mHandleRange.first,
+                .type = SENSOR_TYPE_META_DATA,
+                .meta_data.what = META_DATA_FLUSH_COMPLETE,
+                .timestamp = TIMESTAMP_AUTO_FILL,  // timestamp will be filled at dispatcher
+            };
+            submitEvent(nullptr, event);
+        } else {
+            return -EINVAL;
+        }
         return 0;
     }
     return operateSensor(handle, [] (sp<BaseSensorObject> s)->int {return s->flush();});
-- 
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