📃 feat: Linux Neptune (Valve's kernel for SteamDeck) installation (#683)

* Linux Neptune installation script

* fixed some stuff that's not supposed to be here

Co-authored-by: nnyyxxxx <nnyyxxxx@users.noreply.github.com>

* fix repo check

* added audio patches

https://github.com/ChrisTitusTech/linutil/issues/269#issuecomment-2380379049

* add linux neptune to docs (userguide)

* steamdeck precondition

Co-authored-by: Liam <33645555+lj3954@users.noreply.github.com>

* precondition fix

* another precondition fix

---------

Co-authored-by: nnyyxxxx <nnyyxxxx@users.noreply.github.com>
Co-authored-by: Liam <33645555+lj3954@users.noreply.github.com>
Co-authored-by: Chris Titus <contact@christitus.com>

core/tabs/system-setup/arch/linux-neptune.sh

@@ -0,0 +1,60 @@
+#!/bin/sh -e
+
+. ../../common-script.sh
+
+setUpRepos() {
+    if ! grep -q "^\s*\[jupiter-staging\]" /etc/pacman.conf; then
+        printf "%b\n" "${CYAN}Adding jupiter-staging to pacman repositories...${RC}"
+        echo "[jupiter-staging]" | "$ESCALATION_TOOL" tee -a /etc/pacman.conf
+        echo "Server = https://steamdeck-packages.steamos.cloud/archlinux-mirror/\$repo/os/\$arch" | "$ESCALATION_TOOL" tee -a /etc/pacman.conf
+        echo "SigLevel = Never" | "$ESCALATION_TOOL" tee -a /etc/pacman.conf
+    fi
+    if ! grep -q "^\s*\[holo-staging\]" /etc/pacman.conf; then
+        printf "%b\n" "${CYAN}Adding holo-staging to pacman repositories...${RC}"
+        echo "[holo-staging]" | "$ESCALATION_TOOL" tee -a /etc/pacman.conf
+        echo "Server = https://steamdeck-packages.steamos.cloud/archlinux-mirror/\$repo/os/\$arch" | "$ESCALATION_TOOL" tee -a /etc/pacman.conf
+        echo "SigLevel = Never" | "$ESCALATION_TOOL" tee -a /etc/pacman.conf
+    fi
+}
+
+installKernel() {
+    if ! "$PACKAGER" -Q | grep -q "\blinux-neptune"; then
+        printf "%b\n" "${CYAN}Installing linux-neptune..."
+        "$ESCALATION_TOOL" "$PACKAGER" -Syyu --noconfirm
+        "$ESCALATION_TOOL" "$PACKAGER" -S --noconfirm linux-neptune linux-neptune-headers steamdeck-dsp jupiter-staging/alsa-ucm-conf
+        "$ESCALATION_TOOL" mkinitcpio -P
+    else
+        printf "%b\n" "${GREEN}linux-neptune detected. Skipping installation.${RC}"
+    fi
+
+    if [ -f /etc/default/grub ]; then
+        printf "%b\n" "${CYAN}Updating GRUB...${RC}"
+    if ! grep -q '^UPDATEDEFAULT=' /etc/default/grub; then
+        echo 'UPDATEDEFAULT=yes' | "$ESCALATION_TOOL" tee -a /etc/default/grub
+    else
+        "$ESCALATION_TOOL" sed -i 's/^UPDATEDEFAULT=.*/UPDATEDEFAULT=yes/' /etc/default/grub
+    fi
+    if [ -f /boot/grub/grub.cfg ]; then
+        "$ESCALATION_TOOL" grub-mkconfig -o /boot/grub/grub.cfg
+    else
+        printf "%b\n" "${RED}GRUB configuration file not found. Run grub-mkconfig manually.${RC}"
+    fi
+    else
+        printf "%b\n" "${RED}GRUB not detected. Manually set your bootloader to use linux-neptune.${RC}"
+    fi
+}
+
+copyFirmwareFiles() {
+    printf "%b\n" "${CYAN}Copying firmware files...${RC}"
+    "$ESCALATION_TOOL" mkdir -p /usr/lib/firmware/cirrus
+    "$ESCALATION_TOOL" cp /usr/lib/firmware/cs35l41-dsp1-spk-cali.bin /usr/lib/firmware/cirrus/
+    "$ESCALATION_TOOL" cp /usr/lib/firmware/cs35l41-dsp1-spk-cali.wmfw  /usr/lib/firmware/cirrus/
+    "$ESCALATION_TOOL" cp /usr/lib/firmware/cs35l41-dsp1-spk-prot.bin  /usr/lib/firmware/cirrus/
+    "$ESCALATION_TOOL" cp /usr/lib/firmware/cs35l41-dsp1-spk-prot.wmfw  /usr/lib/firmware/cirrus/
+}
+
+checkEnv
+checkEscalationTool
+setUpRepos
+installKernel
+copyFirmwareFiles

core/tabs/system-setup/tab_data.toml

@@ -15,6 +15,17 @@ script = "arch/server-setup.sh"
 task_list = "SI D"
 multi_select = false
 
+[[data.entries]]
+name ="Linux Neptune for SteamDeck"
+description = "Valve's fork of Linux Kernel for the SteamDeck"
+script = "arch/linux-neptune.sh"
+task_list = "I PFM K"
+
+[[data.entries.preconditions]]
+matches = true
+data = { file = "/sys/devices/virtual/dmi/id/board_vendor" }
+values = [ "Valve" ]
+
 [[data.entries]]
 name = "Paru AUR Helper"
 description = "Paru is your standard pacman wrapping AUR helper with lots of features and minimal interaction. To know more about AUR helpers visit: https://wiki.archlinux.org/title/AUR_helpers"

docs/userguide.md

@@ -86,6 +86,7 @@ https://github.com/ChrisTitusTech/dwm-titus
 ### Arch Linux
 
 - **Arch Server Setup**: This command installs a minimal arch server setup under 5 minutes.
+- **Linux Neptune for SteamDeck**: Valve's fork of Linux Kernel for the SteamDeck
 - **Paru AUR Helper**: Paru is your standard pacman wrapping AUR helper with lots of features and minimal interaction. To know more about AUR helpers visit: https://wiki.archlinux.org/title/AUR_helpers
 - **Yay AUR Helper**: Yet Another Yogurt - An AUR Helper Written in Go. To know more about AUR helpers visit: https://wiki.archlinux.org/title/AUR_helpers
 

tui/src/state.rs

@@ -30,6 +30,7 @@ D  - disk modifications (ex. partitioning) (privileged)
 FI - flatpak installation
 FM - file modification
 I  - installation (privileged)
+K  - kernel modifications (privileged)
 MP - package manager actions
 SI - full system installation
 SS - systemd actions (privileged)