| #!/bin/bash |
| # |
| # Copyright 2014 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| # |
| # This script checks the battery level is high enough for shipping. If not, |
| # it asks for AC power and waits for the battery to charge. |
| # |
| |
| BATTERY_PATH="/sys/class/power_supply/sbs-20-000b" |
| MIN_LEVEL=45 |
| DISPLAY_MESSAGE="/usr/sbin/display_wipe_message.sh" |
| |
| get_percentage() { |
| CHARGE_NOW=$(cat "${BATTERY_PATH}"/charge_now) |
| CHARGE_FULL=$(cat "${BATTERY_PATH}"/charge_full) |
| echo $((100 * ${CHARGE_NOW} / ${CHARGE_FULL})) |
| } |
| |
| if [[ $(get_percentage) -le $MIN_LEVEL ]]; then |
| # Ask for AC power |
| if [ -z "$(ectool battery | grep AC_PRESENT)" ]; then |
| "${DISPLAY_MESSAGE}" "connect_ac" |
| while [ -z "$(ectool battery | grep AC_PRESENT)" ]; do |
| sleep 0.5; |
| done |
| fi |
| |
| # Wait for battery to charge to MIN_LEVEL |
| while [[ $(get_percentage) -le $MIN_LEVEL ]]; do |
| "${DISPLAY_MESSAGE}" "charging" "$(get_percentage)" "${MIN_LEVEL}" |
| sleep 1 |
| done |
| fi |
