From 1f9dacf486e2d22505ff0a92ad75d89ec6a31ea1 Mon Sep 17 00:00:00 2001
From: Tom Fifield <tom@tomfifield.net>
Date: Wed, 31 Jul 2024 04:57:13 +0800
Subject: [PATCH] Add support for ATGM332D series (#4351)

Adds detection code for the ATGM332D series of chips (11, 21, 31,
51, 71), and sets meshtastic to use GNSS_MODEL_ATGM336H for them.
---
 src/gps/GPS.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/gps/GPS.cpp b/src/gps/GPS.cpp
index 67f6adb98..091b4e6bc 100644
--- a/src/gps/GPS.cpp
+++ b/src/gps/GPS.cpp
@@ -1217,7 +1217,7 @@ GnssModel_t GPS::probe(int serialSpeed)
         return GNSS_MODEL_UC6580;
     }
 
-    // Get version information
+    // Get version information for ATGM336H
     clearBuffer();
     _serial_gps->write("$PCAS06,1*1A\r\n");
     if (getACK("$GPTXT,01,01,02,HW=ATGM336H", 500) == GNSS_RESPONSE_OK) {
@@ -1225,6 +1225,15 @@ GnssModel_t GPS::probe(int serialSpeed)
         return GNSS_MODEL_ATGM336H;
     }
 
+    /* ATGM332D series (-11(GPS), -21(BDS), -31(GPS+BDS), -51(GPS+GLONASS), -71-0(GPS+BDS+GLONASS))
+    based on AT6558 */
+    clearBuffer();
+    _serial_gps->write("$PCAS06,1*1A\r\n");
+    if (getACK("$GPTXT,01,01,02,HW=ATGM332D", 500) == GNSS_RESPONSE_OK) {
+        LOG_INFO("ATGM332D detected, using ATGM336H Module\n");
+        return GNSS_MODEL_ATGM336H;
+    }
+
     // Get version information
     clearBuffer();
     _serial_gps->write("$PCAS06,0*1B\r\n");