mirror of
https://github.com/theupriser/steamify-cachyos.git
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theupriser
1aa5e955fe
It only counts as on with the steam-launcher drop-in; installed without it, the menu ticks it, so a normal run adds it.
130 lines
6.7 KiB
Bash
130 lines
6.7 KiB
Bash
#!/bin/bash
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# "HDMI-CEC" menu item, on any PC: Valve's CEC daemon (cecd), TV/receiver
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# volume control (cec-audio-control) and the units that attach USB CEC
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# adapters (Pulse-Eight, RainShadow) with inputattach. They're only in
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# Valve's SteamOS (holo) repository, not in CachyOS or the AUR. Works with
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# any /dev/cec*: a GPU with CEC (e.g. the Steam Machine) or a USB adapter.
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# On a Steam Machine, steamos-manager configures cecd from Steam's settings.
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# Sourced by steamify.sh; not meant to be run on its own.
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CEC_PKGS=(cecd cec-audio-control inputattach-cec-units)
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# steamos-manager checks once, at its start, whether cecd runs; order it
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# after cecd so it never misses it at login.
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CEC_ORDER_DROPIN=/etc/systemd/user/steamos-manager.service.d/10-steamify-after-cecd.conf
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# CachyOS's gaming mode script exports STEAM_ENABLE_CEC=0, which hides
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# Steam's HDMI-CEC settings; Steam reads it from the gamescope environment
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# file. A later EnvironmentFile= overrides it.
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CEC_STEAM_ENV=/etc/steamify/steam-cec.env
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CEC_STEAM_DROPIN=/etc/systemd/user/steam-launcher.service.d/10-steamify-cec.conf
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cec_link_steamos_manager() {
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# On a Steam Machine: steamos-manager writes cecd's config from Steam's
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# CEC settings (its configure-cecd unit, run before cecd), and only
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# offers Steam those settings when cecd was there at its start. Also
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# called by Steam Machine support, which installs steamos-manager after
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# this item ran.
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pacman -Q steamos-manager >/dev/null 2>&1 || return 0
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systemctl --user daemon-reload
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systemctl --user enable steamos-manager-configure-cecd.service 2>/dev/null
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systemctl --user start steamos-manager-configure-cecd.service 2>/dev/null
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systemctl --user restart cecd.service 2>/dev/null
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systemctl --user restart steamos-manager.service 2>/dev/null
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return 0
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}
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cec_installed() { pacman -Q "${CEC_PKGS[@]}" >/dev/null 2>&1; }
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# On = installed and Steam told to show its CEC settings. An install from
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# before 1.1.2 lacks the latter; the menu then ticks it (see cec_repair).
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cec_status() { cec_installed && [[ -f "$CEC_STEAM_DROPIN" ]]; }
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cec_repair() { cec_installed && ! cec_status; }
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fetch_holo_pkg() {
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# fetch_holo_pkg <dir> <package>: download the newest <package> from
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# Valve's newest holo repository into <dir> and print its path. The
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# SHA-256 comes from Valve's package index and is verified.
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local dir="$1" name="$2" repo desc file_name sha256
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repo="$(curl -fsL "$VALVE_MIRROR/" | grep -oE 'holo-[0-9]+\.[0-9]+/' | tr -d / | sort -V | tail -n 1)"
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if [[ ! -f "$dir/holo.db" ]]; then
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[[ -n "$repo" ]] && curl -fsL "$VALVE_MIRROR/$repo/os/x86_64/$repo.db" -o "$dir/holo.db" ||
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{ err "Couldn't read Valve's SteamOS package index ($VALVE_MIRROR)."; return 1; }
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fi
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desc="$(tar -tf "$dir/holo.db" 2>/dev/null | grep -E "^$name-[0-9][^/]*/desc$" | head -n 1)"
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[[ -n "$desc" ]] || { err "No $name in Valve's $repo repository."; return 1; }
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file_name="$(tar -xOf "$dir/holo.db" "$desc" | awk '/^%FILENAME%$/ { getline; print }')"
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sha256="$(tar -xOf "$dir/holo.db" "$desc" | awk '/^%SHA256SUM%$/ { getline; print }')"
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info "Downloading $file_name ($repo)..." >&2
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curl -fsL "$VALVE_MIRROR/$repo/os/x86_64/$file_name" -o "$dir/$file_name" ||
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{ err "Downloading $file_name failed."; return 1; }
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echo "$sha256 $dir/$file_name" | sha256sum -c --quiet - >&2 ||
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{ err "Checksum mismatch for $file_name; not using it."; return 1; }
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echo "$dir/$file_name"
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}
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cec_enable() {
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local tmp p f files=()
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# inputattach, needed by inputattach-cec-units.
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if ! pacman -Q linuxconsole >/dev/null 2>&1; then
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sudo pacman -S --needed --noconfirm linuxconsole || { err "Installing linuxconsole failed."; return 1; }
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state_set cec installed_linuxconsole 1
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fi
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tmp="$(mktemp -d)"
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for p in "${CEC_PKGS[@]}"; do
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f="$(fetch_holo_pkg "$tmp" "$p")" || { rm -rf "$tmp"; return 1; }
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files+=("$f")
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done
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info "Installing Valve's CEC daemon..."
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if ! sudo pacman -U --needed --noconfirm "${files[@]}"; then
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rm -rf "$tmp"
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err "Installing ${CEC_PKGS[*]} failed."
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return 1
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fi
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rm -rf "$tmp"
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# Its udev rule gives the user /dev/cec*; cecd starts with the graphical
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# session, after steamos-manager wrote its config from Steam's settings.
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sudo udevadm control --reload
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sudo udevadm trigger --subsystem-match=cec --action=add
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sudo mkdir -p "$(dirname "$CEC_ORDER_DROPIN")"
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printf '%s\n' "# Written by Steamify: steamos-manager only sees cecd if it runs at its start." \
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'[Unit]' 'After=cecd.service' | sudo tee "$CEC_ORDER_DROPIN" >/dev/null
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sudo mkdir -p "$(dirname "$CEC_STEAM_ENV")" "$(dirname "$CEC_STEAM_DROPIN")"
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printf '%s\n' "# Written by Steamify: Steam's HDMI-CEC settings in gaming mode." 'STEAM_ENABLE_CEC=1' |
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sudo tee "$CEC_STEAM_ENV" >/dev/null
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printf '%s\n' "# Written by Steamify: overrides STEAM_ENABLE_CEC=0 from the gaming mode script." \
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'[Service]' "EnvironmentFile=-$CEC_STEAM_ENV" | sudo tee "$CEC_STEAM_DROPIN" >/dev/null
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systemctl --user daemon-reload
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cec_link_steamos_manager
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if compgen -G "/dev/cec*" >/dev/null; then
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systemctl --user restart cecd.service 2>/dev/null
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ok "HDMI-CEC on ($(cd /dev && echo cec*)); Steam shows its settings from the next gaming mode start."
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info "Turn on CEC on your TV too (e.g. Sony: BRAVIA Sync, Samsung: Anynet+, LG: SimpLink)."
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else
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warn "No CEC device (/dev/cec*) found: your GPU may not support CEC. A USB CEC adapter"
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warn "(e.g. Pulse-Eight) works too. Check again after a restart with: ls /dev/cec*"
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fi
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}
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cec_disable() {
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info "Removing HDMI-CEC..."
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systemctl --user disable --now cecd.service cec-audio-control.socket cec-audio-control.service 2>/dev/null
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systemctl --user disable steamos-manager-configure-cecd.service 2>/dev/null
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sudo pacman -Rns --noconfirm "${CEC_PKGS[@]}" 2>/dev/null
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sudo rm -f "$CEC_ORDER_DROPIN" "$CEC_STEAM_DROPIN" "$CEC_STEAM_ENV"
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sudo rmdir "$(dirname "$CEC_ORDER_DROPIN")" "$(dirname "$CEC_STEAM_DROPIN")" "$(dirname "$CEC_STEAM_ENV")" 2>/dev/null
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systemctl --user daemon-reload
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if [[ -n "$(state_get cec installed_linuxconsole)" ]]; then
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sudo pacman -Rns --noconfirm linuxconsole 2>/dev/null
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state_clear cec
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fi
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sudo udevadm control --reload
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systemctl --user is-active -q steamos-manager.service 2>/dev/null &&
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systemctl --user restart steamos-manager.service
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ok "HDMI-CEC removed."
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}
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cec_overview() {
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# For the menu's kernel overview.
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local dev="none"
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compgen -G "/dev/cec*" >/dev/null && dev="$(cd /dev && echo cec*)"
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echo "CEC devices: $dev cecd: $(systemctl --user is-active cecd 2>/dev/null)"
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}
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