From 6a39300b0f0a08574038bad4537a27bb614a841d Mon Sep 17 00:00:00 2001 From: Alexander Epaneshnikov Date: Sat, 3 Oct 2020 22:32:05 +0300 Subject: implement accessibility support in archiso this fixes #67 --- configs/releng/airootfs/usr/local/bin/livecd-sound | 252 +++++++++++++++++++++ 1 file changed, 252 insertions(+) create mode 100755 configs/releng/airootfs/usr/local/bin/livecd-sound (limited to 'configs/releng/airootfs/usr/local/bin') diff --git a/configs/releng/airootfs/usr/local/bin/livecd-sound b/configs/releng/airootfs/usr/local/bin/livecd-sound new file mode 100755 index 0000000..87d6f30 --- /dev/null +++ b/configs/releng/airootfs/usr/local/bin/livecd-sound @@ -0,0 +1,252 @@ +#!/usr/bin/env bash +# +# SPDX-License-Identifier: GPL-3.0-or-later + +usage() { + cat <<- _EOF_ + live cd sound helper script. + Usage: livecdsound [OPTION] + OPTIONS + -u, --unmute unmute all sound cards + -p, --pick select a card for speetch output + -h, --help Show this usage message + +_EOF_ +} + +bugout () { + printf "/usr/local/bin/livecdsound: programming error" + stat_fail +} + +echo_card_indices() +{ + if [ -f /proc/asound/cards ] ; then + sed -n -e's/^[[:space:]]*\([0-7]\)[[:space:]].*/\1/p' /proc/asound/cards + fi +} + +# The following functions try to set many controls. +# No card has all the controls and so some of the attempts are bound to fail. +# Because of this, the functions can't return useful status values. + +# $1 +# $2 +# $3 +unmute_and_set_level(){ + { [ "$3" ] &&[ "$2" ] && [ "$1" ] ; } || bugout + systemd-cat -t "livecdsound" printf "Setting: %s on card: %s to %s\n" "$2" "$1" "$3" + systemd-cat -t "livecdsound" amixer -c "$1" set "$2" "$3" unmute + return 0 +} + +# $1 +# $2 +mute_and_zero_level() +{ + { [ "$1" ] && [ "$2" ] ; } || bugout + systemd-cat -t "livecdsound" printf "Muting control: %s on card: %s\n" "$2" "$1" + systemd-cat -t "livecdsound" amixer -c "$1" set "$2" "0%" mute + return 0 +} + +# $1 +# $2 +# $3 "on" | "off" +switch_control() +{ + { [ "$3" ] && [ "$1" ] ; } || bugout + systemd-cat -t "livecdsound" printf "Switching control: %s on card: %s to %s\n" "$2" "$1" "$3" + systemd-cat -t "livecdsound" amixer -c "$1" set "$2" "$3" + return 0 +} + +# $1 +sanify_levels_on_card() +{ + unmute_and_set_level "$1" "Front" "80%" + unmute_and_set_level "$1" "Master" "80%" + unmute_and_set_level "$1" "Master Mono" "80%" + unmute_and_set_level "$1" "Master Digital" "80%" # E.g., cs4237B + unmute_and_set_level "$1" "Playback" "80%" + unmute_and_set_level "$1" "Headphone" "100%" + unmute_and_set_level "$1" "PCM" "80%" + unmute_and_set_level "$1" "PCM,1" "80%" # E.g., ess1969 + unmute_and_set_level "$1" "DAC" "80%" # E.g., envy24, cs46xx + unmute_and_set_level "$1" "DAC,0" "80%" # E.g., envy24 + unmute_and_set_level "$1" "DAC,1" "80%" # E.g., envy24 + unmute_and_set_level "$1" "Synth" "80%" + unmute_and_set_level "$1" "CD" "80%" + unmute_and_set_level "$1" "PC Speaker" "100%" + + mute_and_zero_level "$1" "Mic" + mute_and_zero_level "$1" "IEC958" # Ubuntu #19648 + + # Intel P4P800-MX + switch_control "$1" "Master Playback Switch" on + switch_control "$1" "Master Surround" on + + # Trident/YMFPCI/emu10k1: + unmute_and_set_level "$1" "Wave" "80%" + unmute_and_set_level "$1" "Music" "80%" + unmute_and_set_level "$1" "AC97" "80%" + + # DRC: + unmute_and_set_level "$1" "Dynamic Range Compression" "80%" + + # Required for HDA Intel (hda-intel): + unmute_and_set_level "$1" "Front" "80%" + + # Required for SB Live 7.1/24-bit (ca0106): + unmute_and_set_level "$1" "Analog Front" "80%" + + # Required at least for Via 823x hardware on DFI K8M800-MLVF Motherboard + switch_control "$1" "IEC958 Capture Monitor" off + + # Required for hardware allowing toggles for AC97 through IEC958, + # valid values are 0, 1, 2, 3. Needs to be set to 0 for PCM1. + unmute_and_set_level "$1" "IEC958 Playback AC97-SPSA" "0" + + # Required for newer Via hardware + unmute_and_set_level "$1" "VIA DXS,0" "80%" + unmute_and_set_level "$1" "VIA DXS,1" "80%" + unmute_and_set_level "$1" "VIA DXS,2" "80%" + unmute_and_set_level "$1" "VIA DXS,3" "80%" + + # Required on some notebooks with ICH4: + switch_control "$1" "Headphone Jack Sense" off + switch_control "$1" "Line Jack Sense" off + + # Some machines need one or more of these to be on; + # others need one or more of these to be off: + + switch_control "$1" "Audigy Analog/Digital Output Jack" on + switch_control "$1" "SB Live Analog/Digital Output Jack" on + + # D1984 -- Thinkpad T61/X61 + switch_control "$1" "Speaker" on + switch_control "$1" "Headphone" on + + # HDA-Intel w/ "Digital" capture mixer (See Ubuntu #193823) + unmute_and_set_level "$1" "Digital" "80%" + + return 0 +} + +# $1 | "all" +sanify_levels() +{ + local ttsdml_returnstatus=0 + local card + case "$1" in + all) + for card in $(echo_card_indices) ; do + sanify_levels_on_card "$card" || ttsdml_returnstatus=1 + done + ;; + *) + sanify_levels_on_card "$1" || ttsdml_returnstatus=1 + ;; + esac + return $ttsdml_returnstatus +} + +# List all cards that *should* be usable for PCM audio. In my experience, +# the console speaker (handled by the pcsp driver) isn't a suitable playback +# device, so we'll exclude it. +list_non_pcsp_cards() +{ + for card in $(echo_card_indices); do + local cardfile="/proc/asound/card${card}/id" + if [ -r "$cardfile" ] && [ -f "$cardfile" ] && \ + [ "$(cat "$cardfile")" != pcsp ]; then + echo "$card" + fi + done +} + +# Properly initialize the sound card so that we have audio at boot. +unmute_all_cards() +{ + sanify_levels all +} + +nwords() { + echo $# +} + +is_numeric() { + local str=$1 + expr match "$str" '[[:digit:]]\+$' > /dev/null 2>&1 +} + +set_default_card() { + local card=$1 + sed -e "s/%card%/$card/g" < /usr/local/share/livecd-sound/asound.conf.in \ + > /etc/asound.conf +} + +play_on_card() { + local card=$1 file=$2 + aplay -q "-Dplughw:$card,0" "$file" +} + +# If there are multiple usable sound cards, prompt the user to choose one, +# using auditory feedback. +pick_a_card() +{ + set -f + usable_cards="$(list_non_pcsp_cards)" + num_usable_cards=$(nwords $usable_cards) + + if [ "$num_usable_cards" -eq 1 ]; then + systemd-cat -t "livecdsound" printf "Only one sound card is detected\n" + exit 0 + fi + systemd-cat -t "livecdsound" printf "multiple sound cards detected\n" + for card in $usable_cards; do + if ! is_numeric "$card"; then + continue + fi + play_on_card "$card" /usr/share/livecd-sounds/pick-a-card.wav& + done + wait + sleep 1 + for card in $usable_cards; do + if ! is_numeric "$card"; then + continue + fi + play_on_card "$card" /usr/share/livecd-sounds/beep.wav + if read -r -t 10; then + systemd-cat -t "livecdsound" printf "Selecting %s sound card as default\n" "$card" + set_default_card "$card" + break + fi +done +} + +if [[ $# -eq 0 ]]; then + echo "error: No argument passed." + exit 1 +fi +while [[ "${1}" != "" ]]; do + case ${1} in + -h|--help) + usage + exit + ;; + -u|--unmute) + systemd-cat -t "livecdsound" printf "Unmuting all cards" + unmute_all_cards + ;; + -p|--pick) + pick_a_card + ;; + *) + echo "error: Unsupported argument" + usage + exit 1 + ;; + esac + shift +done -- cgit v1.2.3-70-g09d2