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Commit 94a00a8e authored by ghepeu's avatar ghepeu Committed by Steve Kondik
Browse files

Add support for Samsung extended AGPS 

The AGPS implementation in the GPS chipset used in some Samsung devices
(i9100, i9300) can make use of the Psc field. Adapt the relevant
functions hiding the changes incompatible with other devices under the
AGPS_USE_PSC #define.

Credit to Qaweck from xda-developers forum for finding the meaning
of the field.

Change-Id: Ie4691c79ca379a1f5c0a87500c1b06b56ae7ac0d
parent 89d8d436

services/core/java/com/android/server/location/GpsLocationProvider.java

+2 −2
Original line number Diff line number Diff line
@@ -1929,7 +1929,7 @@ public class GpsLocationProvider implements LocationProviderInterface { 
                    type = AGPS_REF_LOCATION_TYPE_GSM_CELLID;

                }

                native_agps_set_ref_location_cellid(type, mcc, mnc,

                        gsm_cell.getLac(), gsm_cell.getCid());

                        gsm_cell.getLac(), gsm_cell.getCid(), gsm_cell.getPsc());

            } else {

                Log.e(TAG,"Error getting cell location info.");

            }
@@ -2287,7 +2287,7 @@ public class GpsLocationProvider implements LocationProviderInterface { 


    // AGPS ril suport

    private native void native_agps_set_ref_location_cellid(int type, int mcc, int mnc,

            int lac, int cid);

            int lac, int cid, int psc);

    private native void native_agps_set_id(int type, String setid);



    private native void native_update_network_state(boolean connected, int type,

services/core/jni/com_android_server_location_GpsLocationProvider.cpp

+7 −2
Original line number Diff line number Diff line
@@ -641,7 +641,7 @@ static jint android_location_GpsLocationProvider_read_sv_status(JNIEnv* env, job 
}



static void android_location_GpsLocationProvider_agps_set_reference_location_cellid(

        JNIEnv* /* env */, jobject /* obj */, jint type, jint mcc, jint mnc, jint lac, jint cid)

        JNIEnv* /* env */, jobject /* obj */, jint type, jint mcc, jint mnc, jint lac, jint cid, jint psc)

{

    AGpsRefLocation location;
@@ -657,6 +657,11 @@ static void android_location_GpsLocationProvider_agps_set_reference_location_cel 
            location.u.cellID.mcc = mcc;

            location.u.cellID.mnc = mnc;

            location.u.cellID.lac = lac;

#ifdef AGPS_USE_PSC

            location.u.cellID.psc = psc;

#else

            (void *)psc;

#endif

            location.u.cellID.cid = cid;

            break;

        default:
@@ -1477,7 +1482,7 @@ static JNINativeMethod sMethods[] = { 
            "(ILjava/lang/String;)V",

            (void*)android_location_GpsLocationProvider_agps_set_id},

    {"native_agps_set_ref_location_cellid",

            "(IIIII)V",

            "(IIIIII)V",

            (void*)android_location_GpsLocationProvider_agps_set_reference_location_cellid},

    {"native_set_agps_server",

            "(ILjava/lang/String;I)V",