From 0529b2b9bb54a1b7cd23741e5ef8101ee3d8bf52 Mon Sep 17 00:00:00 2001
From: Kevin Tang <zhikait@codeaurora.org>
Date: Wed, 17 Oct 2012 14:49:56 -0700
Subject: [PATCH] XTWiFi: disable coarse position injection when XTWiFi NLP is
 in use

Disable coarse position injection from GPS HAL when XTWiFi
Network Location Provider is in use. This is needed to avoid self
learning loop inside modem.

Change-Id: I0526317221d3490c41d0d8d901fbfa4d93e9a0b0
CRs-Fixed: 409409
---
 loc_api/libloc_api_50001/loc.cpp | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)
 mode change 100644 => 100755 loc_api/libloc_api_50001/loc.cpp

diff --git a/loc_api/libloc_api_50001/loc.cpp b/loc_api/libloc_api_50001/loc.cpp
old mode 100644
new mode 100755
index f78d8070..8ac78625
--- a/loc_api/libloc_api_50001/loc.cpp
+++ b/loc_api/libloc_api_50001/loc.cpp
@@ -41,6 +41,8 @@
 #include <fcntl.h>
 #include <errno.h>
 
+#include <cutils/properties.h>
+
 //Globals defns
 static const ulpInterface * loc_eng_ulp_inf = NULL;
 static const ulpInterface * loc_eng_get_ulp_inf(void);
@@ -523,9 +525,32 @@ SIDE EFFECTS
 ===========================================================================*/
 static int loc_inject_location(double latitude, double longitude, float accuracy)
 {
+    static bool initialized = false;
+    static bool enable_cpi = true;
     ENTRY_LOG();
-    int ret_val = loc_eng_inject_location(loc_afw_data, latitude, longitude, accuracy);
 
+    if(!initialized)
+    {
+        char value[PROPERTY_VALUE_MAX];
+        memset(value, 0, sizeof(value));
+        (void)property_get("persist.gps.qc_nlp_in_use", value, "0");
+        if(0 == strcmp(value, "1"))
+        {
+            enable_cpi = false;
+            LOC_LOGI("GPS HAL coarse position injection disabled");
+        }
+        else
+        {
+            LOC_LOGI("GPS HAL coarse position injection enabled");
+        }
+        initialized = true;
+    }
+
+    int ret_val = 0;
+    if(enable_cpi)
+    {
+      ret_val = loc_eng_inject_location(loc_afw_data, latitude, longitude, accuracy);
+    }
     EXIT_LOG(%d, ret_val);
     return ret_val;
 }