From 91d9d51f5d3371d64b089c63e06409f8e2c92ea0 Mon Sep 17 00:00:00 2001
From: Laurent Tu <laurentt@google.com>
Date: Thu, 11 Oct 2012 20:41:23 -0700
Subject: [PATCH] Return accuracy in GPS emulation

Accuracy is now a required field for location. To comply, set an
accuracy in returned fix. The accuracy is constant for now since
computing it from the NMEA sentence seems to be very complicated.

Bug: 6864500

Change-Id: Iff4c36b440b095539c717d35a812ee2ed7c1725f
---
 tools/emulator/system/gps/gps_qemu.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/tools/emulator/system/gps/gps_qemu.c b/tools/emulator/system/gps/gps_qemu.c
index eebe8d691..8f3d6e9ce 100644
--- a/tools/emulator/system/gps/gps_qemu.c
+++ b/tools/emulator/system/gps/gps_qemu.c
@@ -405,6 +405,16 @@ nmea_reader_update_speed( NmeaReader*  r,
     return 0;
 }
 
+static int
+nmea_reader_update_accuracy( NmeaReader*  r )
+{
+    // Always return 20m accuracy.
+    // Possibly parse it from the NMEA sentence in the future.
+    r->fix.flags    |= GPS_LOCATION_HAS_ACCURACY;
+    r->fix.accuracy = 20;
+    return 0;
+}
+
 
 static void
 nmea_reader_parse( NmeaReader*  r )
@@ -488,6 +498,10 @@ nmea_reader_parse( NmeaReader*  r )
         tok.p -= 2;
         D("unknown sentence '%.*s", tok.end-tok.p, tok.p);
     }
+
+    // Always update accuracy
+    nmea_reader_update_accuracy( r );
+
     if (r->fix.flags != 0) {
 #if GPS_DEBUG
         char   temp[256];