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authorAlexander Epaneshnikov <aarnaarn2@gmail.com>2020-10-03 22:32:05 +0300
committerAlexander Epaneshnikov <aarnaarn2@gmail.com>2020-10-29 12:30:37 +0000
commit6a39300b0f0a08574038bad4537a27bb614a841d (patch)
tree1fb090ee534f85703d8b3e03b9102cc463f18039 /configs/releng/airootfs/usr/local/bin
parent6820f2cb69f214a1e10c95f42d0c44bce2cc8fc4 (diff)
implement accessibility support in archiso
this fixes #67
Diffstat (limited to 'configs/releng/airootfs/usr/local/bin')
-rwxr-xr-xconfigs/releng/airootfs/usr/local/bin/livecd-sound252
1 files changed, 252 insertions, 0 deletions
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 <card id>
+# $2 <control>
+# $3 <level>
+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 <card id>
+# $2 <control>
+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 <card ID>
+# $2 <control>
+# $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 <card ID>
+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 <card ID> | "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