From 7944b2a7f835490de2bcde60de011feaad30e333 Mon Sep 17 00:00:00 2001
From: Luke Song <songwalker@google.com>
Date: Mon, 15 May 2017 14:17:42 -0700
Subject: [PATCH] Sensor enable/disable added to dvr api

In order to manage power usage when system isn't being used.

Bug: None
Test: None
Change-Id: I64f9c3064cc75c1522fef0adef9a5fc156f336b0
---
 libs/vr/libvrsensor/include/dvr/pose_client.h      | 12 +++++++++---
 libs/vr/libvrsensor/include/private/dvr/pose-ipc.h |  1 +
 libs/vr/libvrsensor/pose_client.cpp                | 20 +++++++++++++++-----
 3 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/libs/vr/libvrsensor/include/dvr/pose_client.h b/libs/vr/libvrsensor/include/dvr/pose_client.h
index 43a8e74246..d684ddcc57 100644
--- a/libs/vr/libvrsensor/include/dvr/pose_client.h
+++ b/libs/vr/libvrsensor/include/dvr/pose_client.h
@@ -119,7 +119,7 @@ int dvrPoseClientPoll(DvrPoseClient* client, DvrPose* state);
 // Freezes the pose to the provided state.
 //
 // Future poll operations will return this state until a different state is
-// frozen or dvrPoseSetMode() is called with a different mode. The timestamp is
+// frozen or dvrPoseClientModeSet() is called with a different mode. The timestamp is
 // not frozen.
 //
 // @param client Pointer to the pose client.
@@ -131,13 +131,13 @@ int dvrPoseClientFreeze(DvrPoseClient* client, const DvrPose* frozen_state);
 //
 // @param mode The requested pose mode.
 // @return Zero on success, negative error code on failure.
-int dvrPoseClientSetMode(DvrPoseClient* client, DvrPoseMode mode);
+int dvrPoseClientModeSet(DvrPoseClient* client, DvrPoseMode mode);
 
 // Gets the pose service mode.
 //
 // @param mode Return value for the current pose mode.
 // @return Zero on success, negative error code on failure.
-int dvrPoseClientGetMode(DvrPoseClient* client, DvrPoseMode* mode);
+int dvrPoseClientModeGet(DvrPoseClient* client, DvrPoseMode* mode);
 
 // Get access to the shared memory pose ring buffer.
 // A future pose at vsync <current> + <offset> is accessed at index:
@@ -151,6 +151,12 @@ int dvrPoseClientGetMode(DvrPoseClient* client, DvrPoseMode* mode);
 int dvrPoseClientGetRingBuffer(DvrPoseClient* client,
                                DvrPoseRingBufferInfo* out_info);
 
+// Sets enabled state for sensors pose processing.
+//
+// @param enabled Whether sensors are enabled or disabled.
+// @return Zero on success
+int dvrPoseClientSensorsEnable(DvrPoseClient* client, bool enabled);
+
 #ifdef __cplusplus
 }  // extern "C"
 #endif
diff --git a/libs/vr/libvrsensor/include/private/dvr/pose-ipc.h b/libs/vr/libvrsensor/include/private/dvr/pose-ipc.h
index 9603f1b40f..e4455f1840 100644
--- a/libs/vr/libvrsensor/include/private/dvr/pose-ipc.h
+++ b/libs/vr/libvrsensor/include/private/dvr/pose-ipc.h
@@ -16,6 +16,7 @@ enum {
   DVR_POSE_GET_MODE,
   DVR_POSE_GET_CONTROLLER_RING_BUFFER,
   DVR_POSE_LOG_CONTROLLER,
+  DVR_POSE_SENSORS_ENABLE,
 };
 
 #ifdef __cplusplus
diff --git a/libs/vr/libvrsensor/pose_client.cpp b/libs/vr/libvrsensor/pose_client.cpp
index 21665972dc..b21c7cf572 100644
--- a/libs/vr/libvrsensor/pose_client.cpp
+++ b/libs/vr/libvrsensor/pose_client.cpp
@@ -130,6 +130,16 @@ class PoseClient : public pdx::ClientBase<PoseClient> {
     return ReturnStatusOrError(status);
   }
 
+  // Enables or disables all pose processing from sensors
+  int EnableSensors(bool enabled) {
+    Transaction trans{*this};
+    Status<int> status = trans.Send<int>(DVR_POSE_SENSORS_ENABLE, &enabled,
+                                         sizeof(enabled), nullptr, 0);
+    ALOGE_IF(!status, "Pose EnableSensors() failed because: %s\n",
+             status.GetErrorMessage().c_str());
+    return ReturnStatusOrError(status);
+  }
+
   int GetRingBuffer(DvrPoseRingBufferInfo* out_info) {
     // First time mapping the buffer?
     const auto vsync_buffer = GetVsyncBuffer();
@@ -277,17 +287,17 @@ int dvrPoseClientFreeze(DvrPoseClient* client, const DvrPose* frozen_state) {
   return PoseClient::FromC(client)->Freeze(*frozen_state);
 }
 
-int dvrPoseClientSetMode(DvrPoseClient* client, DvrPoseMode mode) {
+int dvrPoseClientModeSet(DvrPoseClient* client, DvrPoseMode mode) {
   return PoseClient::FromC(client)->SetMode(mode);
 }
 
-int dvrPoseClientGetMode(DvrPoseClient* client, DvrPoseMode* mode) {
+int dvrPoseClientModeGet(DvrPoseClient* client, DvrPoseMode* mode) {
   return PoseClient::FromC(client)->GetMode(mode);
 }
 
-int dvrPoseClientGetRingBuffer(DvrPoseClient* client,
-                               DvrPoseRingBufferInfo* out_info) {
-  return PoseClient::FromC(client)->GetRingBuffer(out_info);
+
+int dvrPoseClientSensorsEnable(DvrPoseClient* client, bool enabled) {
+  return PoseClient::FromC(client)->EnableSensors(enabled);
 }
 
 }  // extern "C"
-- 
2.11.0