diff options
Diffstat (limited to 'meta-google/recipes-google/host-power-ctrl/gpio-host-pwr/lib.sh')
-rw-r--r-- | meta-google/recipes-google/host-power-ctrl/gpio-host-pwr/lib.sh | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/meta-google/recipes-google/host-power-ctrl/gpio-host-pwr/lib.sh b/meta-google/recipes-google/host-power-ctrl/gpio-host-pwr/lib.sh new file mode 100644 index 000000000..16b36a58b --- /dev/null +++ b/meta-google/recipes-google/host-power-ctrl/gpio-host-pwr/lib.sh @@ -0,0 +1,69 @@ +#!/bin/bash +# Copyright 2021 Google LLC +# +# 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. + +# This is intended to be used as a library for managing gpio line values. +# Executing this directly will do nothing. +[ -n "${host_pwr_init-}" ] && return + +source /usr/share/gpio-ctrl/lib.sh || exit + +# Read by the tooling to determine if the machine is powered on or off +HOST_GPIO_PGOOD='unset' +# Set according to whether the host is powered on or off +HOST_LED_PWR='' +# Written by the tooling to assert the power button +HOST_GPIO_PWR_BTN='unset' +# Written by the tooling to assert a cold reset +HOST_GPIO_COLD_RESET='unset' +# Written by the tooling to assert a warm reset +HOST_GPIO_WARM_RESET='unset' + +# Load configurations from a known location in the filesystem to populate +# named GPIOs +shopt -s nullglob +for conf in /usr/share/gpio-host-pwr/conf.d/*.sh; do + source "$conf" +done + +################################################## +# Stop the host watchdog +# Return: +# 0 if success, non-zero if error +################################################## +host_pwr_stop_watchdog() { + # Check to see if we can stop the watchdog safely + # We don't want to stop if we are called from the watchdog itself + if [ -n "${DONT_STOP_WATCHDOG-}" ]; then + return 0 + fi + + echo 'Stopping the host watchdog' >&2 + systemctl stop phosphor-watchdog@host0 +} + +################################################## +# Start the host watchdog +# Return: +# 0 if success, non-zero if error +################################################## +host_pwr_start_watchdog() { + echo 'Starting the host watchdog' >&2 + systemctl start phosphor-watchdog@host0 +} + +host_pwr_init=1 +return 0 2>/dev/null +echo "gpio-host-pwr is a library, not executed directly" >&2 +exit 1 |