msl/max31785-msl

#!/bin/bash
#
# Copyright © 2017 IBM Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

# Check a max31785 firmware revision and set the MSL property
# on the specified inventory items.

set -e

main()
{
    usage="Usage: $(basename "$0") -p PATH... -b BUS_NUMBER -r REVISION"
    while getopts p:b:r:h key; do
        case $key in
            p)
                paths=$OPTARG
                ;;
            b)
                bus=$OPTARG
                ;;
            r)
                revision=$OPTARG
                ;;
            h)
                echo "$usage" >&2
                exit
                ;;
            \?)
                printf "\nUnrecognized option\n"
                echo "$usage" >&2
                exit 1
                ;;
        esac
    done

    if [ -z "$paths" ] || [ -z "$bus" ] || [ -z "$revision" ]; then
        echo "Missing option" >&2
        echo "$usage" >&2
        exit 1
    fi

    local state="false"
    local actual
    local dbus

    dbus=$(mapper get-service /xyz/openbmc_project/inventory)
    actual=$(i2cget -f -y "$bus" 0x52 0x9b w)

    if (( actual >= revision )); then
        state="true"
    fi

    for path in $paths; do
        busctl call "$dbus" /xyz/openbmc_project/inventory \
            xyz.openbmc_project.Inventory.Manager Notify 'a{oa{sa{sv}}}' 1 \
            "$path" 1 \
            xyz.openbmc_project.Inventory.Decorator.MeetsMinimumShipLevel \
            1 MeetsMinimumShipLevel b "$state"
    done
}

main "$@"