Workaround for LTE RSRP -ve values in Signal

[android-x86/hardware-ril.git] / libril / ril.cpp

diff --git a/libril/ril.cpp b/libril/ril.cpp
index b8aba01..e3f7e41 100644 (file)
--- a/libril/ril.cpp
+++ b/libril/ril.cpp
@@ -1995,6 +1995,15 @@ static int responseRilSignalStrength(Parcel &p,
         p.writeInt32(p_cur->EVDO_SignalStrength.signalNoiseRatio);
         if (responselen >= sizeof (RIL_SignalStrength_v6)) {
             p.writeInt32(p_cur->LTE_SignalStrength.signalStrength);
+
+            /*
+             * ril version <=6 receives negative values for rsrp
+             * workaround for backward compatibility
+             */
+            p_cur->LTE_SignalStrength.rsrp =
+                    ((s_callbacks.version <= 6) && (p_cur->LTE_SignalStrength.rsrp < 0 )) ?
+                        -(p_cur->LTE_SignalStrength.rsrp) : p_cur->LTE_SignalStrength.rsrp;
+
             p.writeInt32(p_cur->LTE_SignalStrength.rsrp);
             p.writeInt32(p_cur->LTE_SignalStrength.rsrq);
             p.writeInt32(p_cur->LTE_SignalStrength.rssnr);