From ab1bfa99fad90ced8eeeb1debb70a064772fe330 Mon Sep 17 00:00:00 2001
From: Adam Eliot <adameliot@gmail.com>
Date: Thu, 23 Feb 2017 11:23:27 -0800
Subject: [PATCH] Parent Info (#1370)

* Expanded otGetParentInfo to populate the entire aParentInfo structure

* Added otGetParentAverageRssi function

* Use GetRouterId from rloc function instead of doing it manualy, and corrected documentation
---
 include/openthread.h    | 11 ++++++++++-
 src/core/openthread.cpp | 27 ++++++++++++++++++++++++++-
 2 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/include/openthread.h b/include/openthread.h
index 1dc1bfaf4..aa8521863 100644
--- a/include/openthread.h
+++ b/include/openthread.h
@@ -1933,7 +1933,7 @@ OTAPI uint8_t OTCALL otGetRouterIdSequence(otInstance *aInstance);
 OTAPI ThreadError OTCALL otGetRouterInfo(otInstance *aInstance, uint16_t aRouterId, otRouterInfo *aRouterInfo);
 
 /**
- * The function retains diagnostic information for a Thread Router as parent.
+ * The function retrieves diagnostic information for a Thread Router as parent.
  *
  * @param[in]   aInstance    A pointer to an OpenThread instance.
  * @param[out]  aParentInfo  A pointer to where the parent router information is placed.
@@ -1941,6 +1941,15 @@ OTAPI ThreadError OTCALL otGetRouterInfo(otInstance *aInstance, uint16_t aRouter
  */
 OTAPI ThreadError OTCALL otGetParentInfo(otInstance *aInstance, otRouterInfo *aParentInfo);
 
+/**
+ * The function retrieves the average RSSI for the Thread Parent.
+ *
+ * @param[in]   aInstance    A pointer to an OpenThread instance.
+ * @param[out]  aParentInfo  A pointer to where the parent rssi should be placed.
+ *
+ */
+OTAPI ThreadError OTCALL otGetParentAverageRssi(otInstance *aInstance, int8_t *aParentRssi);
+
 /**
  * Get the Stable Network Data Version.
  *
diff --git a/src/core/openthread.cpp b/src/core/openthread.cpp
index d9570592a..559af5a57 100644
--- a/src/core/openthread.cpp
+++ b/src/core/openthread.cpp
@@ -906,7 +906,32 @@ ThreadError otGetParentInfo(otInstance *aInstance, otRouterInfo *aParentInfo)
 
     parent = aInstance->mThreadNetif.GetMle().GetParent();
     memcpy(aParentInfo->mExtAddress.m8, parent->mMacAddr.m8, OT_EXT_ADDRESS_SIZE);
-    aParentInfo->mRloc16 = parent->mValid.mRloc16;
+
+    aParentInfo->mRloc16          = parent->mValid.mRloc16;
+    aParentInfo->mRouterId        = Mle::Mle::GetRouterId(parent->mValid.mRloc16);
+    aParentInfo->mNextHop         = parent->mNextHop;
+    aParentInfo->mPathCost        = parent->mCost;
+    aParentInfo->mLinkQualityIn   = parent->mLinkInfo.GetLinkQuality(aInstance->mThreadNetif.GetMac().GetNoiseFloor());
+    aParentInfo->mLinkQualityOut  = parent->mLinkQualityOut;
+    aParentInfo->mAge             = static_cast<uint8_t>(Timer::MsecToSec(Timer::GetNow() - parent->mLastHeard));
+    aParentInfo->mAllocated       = parent->mAllocated;
+    aParentInfo->mLinkEstablished = parent->mState == Neighbor::kStateValid;
+
+exit:
+    return error;
+}
+
+ThreadError otGetParentAverageRssi(otInstance *aInstance, int8_t *aParentRssi)
+{
+    ThreadError error = kThreadError_None;
+    Router *parent;
+
+    VerifyOrExit(aParentRssi != NULL, error = kThreadError_InvalidArgs);
+
+    parent = aInstance->mThreadNetif.GetMle().GetParent();
+    *aParentRssi = parent->mLinkInfo.GetAverageRss();
+
+    VerifyOrExit(*aParentRssi != LinkQualityInfo::kUnknownRss, error = kThreadError_Failed);
 
 exit:
     return error;