distribution/packages/sysutils/system-utils/sources/devices/RK3399/headphone_sense
2023-10-24 13:59:09 +00:00

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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2022-present - The JELOS Project (https://github.com/JustEnoughLinuxOS)
. /etc/profile
# Check headphone gpio at boot and set the correct output device
HP_GPIO=$(cat /sys/class/gpio/gpio${DEVICE_JACK}/value)
case ${HP_GPIO} in
"1")
amixer -c 0 cset name='Speaker Switch' ${DEVICE_PLAYBACK_PATH_HP}
amixer -c 0 set 'Headphone' '67%'
amixer -c 0 set 'Playback Polarity' Normal
set_setting "audio.device" "headphone"
;;
*)
amixer -c 0 cset name='Speaker Switch' ${DEVICE_PLAYBACK_PATH_SPK}
amixer -c 0 set 'Headphone' '100%'
amixer -c 0 set 'Playback Polarity' 'R Invert'
set_setting "audio.device" "speakers"
;;
esac
# Headphone sensing
DEVICE="${DEVICE_HEADPHONE_DEV}"
HP_OFF='*(SW_HEADPHONE_INSERT), value 0*'
HP_ON='*(SW_HEADPHONE_INSERT), value 1*'
evtest "${DEVICE}" | while read line; do
case $line in
(${HP_ON})
amixer -c 0 cset name='Speaker Switch' ${DEVICE_PLAYBACK_PATH_HP}
amixer -c 0 set 'Headphone' '67%'
amixer -c 0 set 'Playback Polarity' Normal
set_setting "audio.device" "headphone"
;;
(${HP_OFF})
amixer -c 0 cset name='Speaker Switch' ${DEVICE_PLAYBACK_PATH_SPK}
amixer -c 0 set 'Headphone' '100%'
amixer -c 0 set 'Playback Polarity' 'R Invert'
set_setting "audio.device" "speakers"
;;
esac
done