From a55881f51be3d817c1214956a72f3cf439924ffe Mon Sep 17 00:00:00 2001
From: Tushar Janefalkar <tusharj@codeaurora.org>
Date: Tue, 16 Sep 2014 11:52:27 -0700
Subject: [PATCH] Use regular ATL callflow for SUPL ES

Added a new gps.conf parameter which can
be used to decide whether or not to use
data services to bring up call using emergency
PDN or use default SUPL PDN

Change-Id: I604a1489e66339eb2c27019dafab640f7a15cd84
CRs-fixed: 685639
---
 etc/gps.conf                         |  5 +++++
 loc_api/libloc_api_50001/loc_eng.cpp | 24 ++++++++++++++++++++----
 loc_api/libloc_api_50001/loc_eng.h   |  1 +
 3 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/etc/gps.conf b/etc/gps.conf
index ccc34837..a60230e6 100644
--- a/etc/gps.conf
+++ b/etc/gps.conf
@@ -39,6 +39,11 @@ SUPL_VER=0x10000
 # Emergency SUPL, 1=enable, 0=disable
 SUPL_ES=1
 
+#Choose PDN for Emergency SUPL
+#1 - Use emergency PDN
+#0 - Use regular SUPL PDN for Emergency SUPL
+USE_EMERGENCY_PDN_FOR_EMERGENCY_SUPL=1
+
 # GPS Capabilities bit mask
 # SCHEDULING = 0x01
 # MSB = 0x02
diff --git a/loc_api/libloc_api_50001/loc_eng.cpp b/loc_api/libloc_api_50001/loc_eng.cpp
index c8b7dd8a..b6a6b2e6 100644
--- a/loc_api/libloc_api_50001/loc_eng.cpp
+++ b/loc_api/libloc_api_50001/loc_eng.cpp
@@ -101,6 +101,7 @@ static loc_param_s_type loc_parameter_table[] =
   {"NMEA_PROVIDER",                  &gps_conf.NMEA_PROVIDER,                  NULL, 'n'},
   {"SUPL_VER",                       &gps_conf.SUPL_VER,                       NULL, 'n'},
   {"CAPABILITIES",                   &gps_conf.CAPABILITIES,                   NULL, 'n'},
+  {"USE_EMERGENCY_PDN_FOR_EMERGENCY_SUPL",  &gps_conf.USE_EMERGENCY_PDN_FOR_EMERGENCY_SUPL,          NULL, 'n'},
   {"GYRO_BIAS_RANDOM_WALK",          &sap_conf.GYRO_BIAS_RANDOM_WALK,          &sap_conf.GYRO_BIAS_RANDOM_WALK_VALID, 'f'},
   {"ACCEL_RANDOM_WALK_SPECTRAL_DENSITY",     &sap_conf.ACCEL_RANDOM_WALK_SPECTRAL_DENSITY,    &sap_conf.ACCEL_RANDOM_WALK_SPECTRAL_DENSITY_VALID, 'f'},
   {"ANGLE_RANDOM_WALK_SPECTRAL_DENSITY",     &sap_conf.ANGLE_RANDOM_WALK_SPECTRAL_DENSITY,    &sap_conf.ANGLE_RANDOM_WALK_SPECTRAL_DENSITY_VALID, 'f'},
@@ -140,6 +141,8 @@ static void loc_default_parameters(void)
    gps_conf.A_GLONASS_POS_PROTOCOL_SELECT = 0;
    /*XTRA version check is disabled by default*/
    gps_conf.XTRA_VERSION_CHECK=0;
+   /*Use emergency PDN by default*/
+   gps_conf.USE_EMERGENCY_PDN_FOR_EMERGENCY_SUPL = 1;
 
    /*Defaults for sap.conf*/
    sap_conf.GYRO_BIAS_RANDOM_WALK = 0;
@@ -1104,7 +1107,17 @@ void LocEngRequestSuplEs::proc() const {
         AgpsStateMachine* sm = locEng->ds_nif;
         DSSubscriber s(sm, mID);
         sm->subscribeRsrc((Subscriber*)&s);
-    } else {
+    }
+    else if (locEng->agnss_nif) {
+        AgpsStateMachine *sm = locEng->agnss_nif;
+        ATLSubscriber s(mID,
+                        sm,
+                        locEng->adapter,
+                        false);
+        sm->subscribeRsrc((Subscriber*)&s);
+        LOC_LOGD("%s:%d]: Using regular ATL for SUPL ES", __func__, __LINE__);
+    }
+    else {
         locEng->adapter->atlOpenStatus(mID, 0, NULL, -1, -1);
     }
 }
@@ -2142,8 +2155,9 @@ void loc_eng_agps_init(loc_eng_data_s_type &loc_eng_data, AGpsExtCallbacks* call
                                                       false);
 
         if (adapter->mSupportsAgpsRequests) {
-            loc_eng_data.adapter->sendMsg(new LocEngDataClientInit(&loc_eng_data));
-
+            if(gps_conf.USE_EMERGENCY_PDN_FOR_EMERGENCY_SUPL) {
+                loc_eng_data.adapter->sendMsg(new LocEngDataClientInit(&loc_eng_data));
+            }
             loc_eng_dmn_conn_loc_api_server_launch(callbacks->create_thread_cb,
                                                    NULL, NULL, &loc_eng_data);
         }
@@ -2175,7 +2189,9 @@ getAgpsStateMachine(loc_eng_data_s_type &locEng, AGpsExtType agpsType) {
         break;
     }
     case AGPS_TYPE_SUPL_ES: {
-        stateMachine = locEng.ds_nif;
+        locEng.ds_nif ?
+            stateMachine = locEng.ds_nif:
+            stateMachine = locEng.agnss_nif;
         break;
     }
     default:
diff --git a/loc_api/libloc_api_50001/loc_eng.h b/loc_api/libloc_api_50001/loc_eng.h
index ad40606e..ab945e78 100644
--- a/loc_api/libloc_api_50001/loc_eng.h
+++ b/loc_api/libloc_api_50001/loc_eng.h
@@ -152,6 +152,7 @@ typedef struct loc_gps_cfg_s
     char           XTRA_SERVER_1[MAX_XTRA_SERVER_URL_LENGTH];
     char           XTRA_SERVER_2[MAX_XTRA_SERVER_URL_LENGTH];
     char           XTRA_SERVER_3[MAX_XTRA_SERVER_URL_LENGTH];
+    unsigned long  USE_EMERGENCY_PDN_FOR_EMERGENCY_SUPL;
 } loc_gps_cfg_s_type;
 
 typedef struct