From 9afadde2f4ef8c59c80c7926d1c77153f6f9ca33 Mon Sep 17 00:00:00 2001
From: Alex Markley <alex@mbe.tv>
Date: Fri, 3 Jan 2025 18:00:39 -0500
Subject: [PATCH] Add support for LS20031 GPS module. (#5718)

Hardware documentation referenced:
- https://cdn.sparkfun.com/datasheets/GPS/LS20030~3_datasheet_v1.3.pdf
- https://cdn-shop.adafruit.com/datasheets/PMTK%20command%20packet-Complete-C39-A01.pdf
---
 src/gps/GPS.cpp | 4 +++-
 src/gps/GPS.h   | 5 +++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/gps/GPS.cpp b/src/gps/GPS.cpp
index dcece305a..e88e774bd 100644
--- a/src/gps/GPS.cpp
+++ b/src/gps/GPS.cpp
@@ -1190,6 +1190,8 @@ GnssModel_t GPS::probe(int serialSpeed)
     PROBE_SIMPLE("L76B", "$PMTK605*31", "Quectel-L76B", GNSS_MODEL_MTK_L76B, 500);
     PROBE_SIMPLE("PA1616S", "$PMTK605*31", "1616S", GNSS_MODEL_MTK_PA1616S, 500);
 
+    PROBE_SIMPLE("LS20031", "$PMTK605*31", "MC-1513", GNSS_MODEL_LS20031, 500);
+
     uint8_t cfg_rate[] = {0xB5, 0x62, 0x06, 0x08, 0x00, 0x00, 0x00, 0x00};
     UBXChecksum(cfg_rate, sizeof(cfg_rate));
     clearBuffer();
@@ -1750,4 +1752,4 @@ void GPS::toggleGpsMode()
         enable();
     }
 }
-#endif // Exclude GPS
\ No newline at end of file
+#endif // Exclude GPS
diff --git a/src/gps/GPS.h b/src/gps/GPS.h
index 15fc50fe7..df85b7cbf 100644
--- a/src/gps/GPS.h
+++ b/src/gps/GPS.h
@@ -29,7 +29,8 @@ typedef enum {
     GNSS_MODEL_MTK_L76B,
     GNSS_MODEL_MTK_PA1616S,
     GNSS_MODEL_AG3335,
-    GNSS_MODEL_AG3352
+    GNSS_MODEL_AG3352,
+    GNSS_MODEL_LS20031
 } GnssModel_t;
 
 typedef enum {
@@ -239,4 +240,4 @@ class GPS : private concurrency::OSThread
 };
 
 extern GPS *gps;
-#endif // Exclude GPS
\ No newline at end of file
+#endif // Exclude GPS