Mercurial > infra > box / airootfs/usr/local/bin/livecd-sound

 #!/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() {
     [[ -n "$3" && -n "$2" && -n "$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() {
     [[ -n "$1" && -n "$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() {
     [[ -n "$3" && -n "$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
 }
 
 is_numeric() {
     local str="$1"
     [[ "$str" =~ ^[0-9]+$ ]]
 }
 
 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="$(list_non_pcsp_cards)"
     num_usable_cards="$(wc -w <<<"$usable_cards")"
 
     if (( num_usable_cards == 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 (( $# == 0 )); then
     echo "error: No argument passed."
     exit 1
 fi
 while [[ "${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