From 932269f9bf70f6c3d8c6d2edbfcea0e3c3a4bdc2 Mon Sep 17 00:00:00 2001
From: John Klug <john.klug@multitech.com>
Date: Thu, 23 May 2019 13:06:50 -0500
Subject: GNSS reset fix to suppress GPS serial port to protect XR12V1414 from
 bad PID/VID

---
 recipes-bsp/multitech/mts-io/mts-io.init | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

(limited to 'recipes-bsp/multitech/mts-io')

diff --git a/recipes-bsp/multitech/mts-io/mts-io.init b/recipes-bsp/multitech/mts-io/mts-io.init
index 329a28b..966d5ae 100755
--- a/recipes-bsp/multitech/mts-io/mts-io.init
+++ b/recipes-bsp/multitech/mts-io/mts-io.init
@@ -93,9 +93,11 @@ RST[5]="${sysdir}/ap2/creset"
 RST[6]="${sysdir}/secure-reset"
 RST[7]="${sysdir}/eth-reset"
 RST[8]="${sysdir}/sm1-reset"
-if ((GPSGNSSRESET)) ; then
-	RST[9]="${sysdir}/gnss-reset"
-fi
+
+# GPSGNSSRESET is now set low during boot and is special cased.
+#if ((GPSGNSSRESET)) ; then
+#	RST[9]="${sysdir}/gnss-reset"
+#fi
 
 WPIN[0]="${sysdir}/ap1/cdone"
 WPIN[1]="${sysdir}/ap2/cdone"
@@ -299,8 +301,19 @@ case $1 in
     set_gpslink # Set GPS symlink.
     /usr/bin/logger -t "mts-io" -p daemon.info -s "Resetting system modules"
     read_card_info
+    has_gnss_reset=0
+    # On boot, gnss-reset will be low
+    if [[ -f ${sysdir}/gnss-reset ]] ; then
+	if (($(mts-io-sysfs show gnss-reset) == 1)) ; then
+		mts-io-sysfs store gnss-reset 0
+	fi
+        has_gnss_reset=1
+    fi
     /bin/busybox usleep $USLPTIME
     reset_array
+    if ((has_gnss_reset)) ; then
+        mts-io-sysfs store gnss-reset 1
+    fi
     # use radio-reset init script for radio-reset
     mfser_init
 
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