gnss-init: reverted the gnss-init service back to "original" state

Reason for reverting to originial state:
- adaption of the v2x-fw-load script
- re-introduction of the v2x recipe in all of our images
- no difference when wainting on USB disconnect event or directly
  releaseing the gnss module from its reset

BTW: The original timeout of 50s can be explained as the SCU held a
delay of 40s until powering the v2x module. This delay shall be
removed in the next couple of days.

BugzID: 72787
Signed-off-by: Marc Mattmueller <marc.mattmueller@netmodule.com>

recipes-connectivity/gnss-init/files/gnss-init.service

@@ -5,8 +5,7 @@ After=usb-hub-reset.service v2x-ieee802.11p.service
 [Service]
 Type=oneshot
 
-ExecStartPre=/usr/bin/sh -c "/usr/bin/gnss-reset -c -t 20"
+ExecStart=/usr/bin/sh -c  "echo 0 > /sys/class/leds/gnss_rst/brightness"
-ExecStart=/usr/bin/sh -c  "/usr/bin/gnss-reset -s on"
 
 RemainAfterExit=yes
 

recipes-connectivity/gnss-init/files/gnss-reset

@@ -1,121 +0,0 @@
-#!/bin/sh
-
-# ************************************************************
-#  GNSS Reset Script
-#  -----------------------
-#
-#  The USB hub in the HW23 connects the GNSS modem, the v2x-
-#  module, the user interface and the user module.
-#
-#  When HW23 device is powering up the v2x module enters DFU
-#  mode. This mode leads to enumeration errors when releasing
-#  the gnss module from reset. Thus a sequentialized startup
-#  is needed.
-#  This script can be called with option -c to check for a
-#  specific time if the USB hub detects a disconnection of
-#  the v2x module. This is needed for a proper startup of
-#  the device.
-# ************************************************************
-
-SCRIPT_NAME=$(basename "${0}")
-SCRIPT_DIR=$(dirname "${0}")
-SCRIPT_PATH=$(realpath "${SCRIPT_DIR}")
-MYDIR=$(pwd)
-
-START_REASON=/sys/kernel/broker/start-reason
-GNSS_RST=/sys/class/leds/gnss_rst/brightness
-ON_VALUE=0
-OFF_VALUE=255
-CHECK_TIMEOUT_S=0
-
-export RST_STATE="off"
-export IS_CHECK=false
-
-#**********************************************************************************************
-# local helper functions
-#**********************************************************************************************
-function printUsage()
-{
-    echo -e "\\nUsage: ${SCRIPT_NAME} [OPT] CMD \\n\\n"
-    echo -e "   CMD:"
-    echo -e "     -c|--check                 Check start reason and usb-hub message"
-    echo -e "     -s|--set=STATE             Set the requested STATE of the gnss module:"
-    echo -e "                                 * on = release module from reset"
-    echo -e "                                 * off = set module in reset mode (default)"
-    echo -e "     -h|--help                  Show this help"
-    echo -e ""
-    echo -e "   OPT:"
-    echo -e "     -t|--timeout=TIMEOUT_S     Set the check timeout in seconds"
-    echo -e "                                 * 0s = disabled (default)"
-    echo -e ""
-}
-
-function checkDeviceState()
-{
-    if [ $(cat $START_REASON | grep reboot | wc -l) == 1 ]; then
-        echo "$SCRIPT_NAME: Reboot, no further check necessary"
-    elif [ $CHECK_TIMEOUT_S != 0 ]; then
-        echo "$SCRIPT_NAME: Power cycle detected, checking for v2x event on usb-hub (timeout=${CHECK_TIMEOUT_S}s)"
-        timeout $CHECK_TIMEOUT_S bash -c -- 'while true; do dmesg | grep "usb 1-1.*USB disconnect"; if [ $? == 0 ]; then break; fi; done'
-        if [ $? == 124 ]; then
-            echo "$SCRIPT_NAME: timed out - no reset of v2x module detected"
-        fi
-    else
-        echo "$SCRIPT_NAME: Power cycle detected (disabled v2x event check)"
-    fi
-}
-
-#**********************************************************************************************
-# main
-#**********************************************************************************************
-
-O=$(getopt -o hct:s: --long help,check,timeout:,set: -- "$@") || exit 1
-if [ $? != 0 ]; then
-    echo "ERROR: Could not parse $SCRIPT_NAME command line options"
-    exit 1
-fi
-
-eval set -- "$O"
-while true; do
-    case "${1}" in
-        -c|--check)
-            export IS_CHECK=true
-            shift
-            ;;
-        -t|--timeout)
-            export CHECK_TIMEOUT_S=${2}
-            shift 2
-            ;;
-        -s|--set)
-            export RST_STATE="${2}"
-            shift 2
-            ;;
-        --)
-            break
-            ;;
-        *)
-            printUsage; exit 0 ;;
-    esac
-done
-
-if [ ! -f $GNSS_RST ]; then
-    echo "ERROR $SCRIPT_NAME: GNSS module reset lines not available"
-    exit 1
-fi
-
-RST_VALUE=$OFF_VALUE
-[[ "${RST_STATE}" != "off" ]] && RST_VALUE=$ON_VALUE || true
-
-if [[ "${IS_CHECK}" == "true" ]]; then
-    checkDeviceState
-    exit 0
-fi
-
-echo "$SCRIPT_NAME: setting $GNSS_RST=$RST_STATE($RST_VALUE)..."
-echo $RST_VALUE > $GNSS_RST
-if [[ "$?" != "0" ]]; then
-    echo "ERROR $SCRIPT_NAME: Could not set $RST_STATE ($RST_VALUE) in $GNSS_RST"
-    exit 1
-fi
-
-exit 0

recipes-connectivity/gnss-init/gnss-init.bb

@@ -13,7 +13,6 @@ FILESEXTRAPATHS_append := ":${THISDIR}/files"
 
 SRC_URI_append = " \ 
            file://gnss-init.service \
-           file://gnss-reset \
            "
 
 S = "${WORKDIR}"
@@ -27,7 +26,4 @@ FILES_${PN}_append = "${systemd_unitdir}/system ${bindir}"
 do_install_append() {
     install -d ${D}${systemd_unitdir}/system
     install -m 644 ${WORKDIR}/gnss-init.service ${D}${systemd_unitdir}/system/
-
-    install -d ${D}${bindir}
-    install -m 744 ${WORKDIR}/gnss-reset ${D}${bindir}
 }