From 29fb746ef88be72cf143c5f96272cf807617f10b Mon Sep 17 00:00:00 2001
From: Florin9doi <Florin9doi@users.noreply.github.com>
Date: Fri, 5 Jan 2024 11:21:52 +0200
Subject: [PATCH] GPS: Improve emulation to enable Go!Explore navigation

---
 Core/HLE/sceUsbGps.cpp | 13 ++++++-------
 Core/HLE/sceUsbGps.h   |  6 +++---
 2 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/Core/HLE/sceUsbGps.cpp b/Core/HLE/sceUsbGps.cpp
index fe9fdf66d5b8..5aa8ec913909 100644
--- a/Core/HLE/sceUsbGps.cpp
+++ b/Core/HLE/sceUsbGps.cpp
@@ -67,7 +67,6 @@ static int sceUsbGpsGetState(u32 stateAddr) {
 }
 
 static int sceUsbGpsOpen() {
-	ERROR_LOG(HLE, "UNIMPL sceUsbGpsOpen");
 	GPS::init();
 	gpsStatus = GPS_STATE_ON;
 	System_GPSCommand("open");
@@ -75,7 +74,6 @@ static int sceUsbGpsOpen() {
 }
 
 static int sceUsbGpsClose() {
-	ERROR_LOG(HLE, "UNIMPL sceUsbGpsClose");
 	gpsStatus = GPS_STATE_OFF;
 	System_GPSCommand("close");
 	return 0;
@@ -131,14 +129,15 @@ void GPS::init() {
 	gpsData.altitude  = 19.0f;
 	gpsData.speed     = 3.0f;
 	gpsData.bearing   = 35.0f;
+	gpsData.garbage2  = 513;
 
-	satData.satellites_in_view = 6;
+	satData.satellites_in_view = 12;
 	for (unsigned char i = 0; i < satData.satellites_in_view; i++) {
 		satData.satInfo[i].id = i + 1; // 1 .. 32
-		satData.satInfo[i].elevation = i * 10;
-		satData.satInfo[i].azimuth = i * 50;
-		satData.satInfo[i].snr = 0;
-		satData.satInfo[i].good = 1;
+		satData.satInfo[i].elevation = 20;
+		satData.satInfo[i].azimuth = i * (360/satData.satellites_in_view);
+		satData.satInfo[i].snr = 45;
+		satData.satInfo[i].good = !!(i % 3);
 	}
 }
 
diff --git a/Core/HLE/sceUsbGps.h b/Core/HLE/sceUsbGps.h
index 39513cda7158..2e6e4722a223 100644
--- a/Core/HLE/sceUsbGps.h
+++ b/Core/HLE/sceUsbGps.h
@@ -36,12 +36,12 @@ typedef struct {
 	short second;
 	float garbage1;
 	float hdop;
-	float garbage2;
+	u32 garbage2;    // 0 > 257 > 513
 	float latitude;
 	float longitude;
-	float altitude;
+	float altitude;  // m
 	float garbage3;
-	float speed;
+	float speed;     // km/h
 	float bearing;
 } GpsData;