93 lines
2.3 KiB
Nix
93 lines
2.3 KiB
Nix
{
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config,
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lib,
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pkgs,
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namespace,
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...
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}:
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let
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cfg = config.${namespace}.hardware.raspberry-pi;
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in
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{
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options.${namespace}.hardware.raspberry-pi = {
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enable = lib.mkEnableOption "Raspberry Pi common configuration";
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variant = lib.mkOption {
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type = lib.types.enum [
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"4"
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"5"
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];
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description = "Raspberry Pi variant (4 or 5)";
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};
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};
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config = lib.mkIf cfg.enable {
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# Common Raspberry Pi packages
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environment.systemPackages =
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with pkgs;
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[
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libraspberrypi
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raspberrypi-eeprom
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raspberrypifw
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raspberrypiWirelessFirmware
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raspberrypi-armstubs
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]
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++ lib.optionals (cfg.variant == "4") [
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i2c-tools
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]
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++ lib.optionals (cfg.variant == "5") [
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erofs-utils
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fex
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squashfuse
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squashfsTools
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];
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# Common nixpkgs overlays for Raspberry Pi
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nixpkgs.overlays = lib.mkAfter [
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(_self: super: {
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# This is used in (modulesPath + "/hardware/all-firmware.nix") when at least
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# enableRedistributableFirmware is enabled
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inherit (super) raspberrypiWirelessFirmware;
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# Some derivations want to use it as an input,
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# e.g. raspberrypi-dtbs, omxplayer, sd-image-* modules
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inherit (super) raspberrypifw;
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})
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];
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# Common Bluetooth configuration
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systemd.services.btattach = {
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before = [ "bluetooth.service" ];
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after = [ "dev-ttyAMA0.device" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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ExecStart = "${pkgs.bluez}/bin/btattach -B /dev/ttyAMA0 -P bcm -S 3000000";
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};
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};
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# Common hardware settings
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hardware.i2c.enable = lib.mkIf (cfg.variant == "4") true;
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# Pi 5 specific settings
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hardware.graphics.enable32Bit = lib.mkIf (cfg.variant == "5") (lib.mkForce false);
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zramSwap.enable = lib.mkIf (cfg.variant == "5") true;
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# Pi 5 specific system tags
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system.nixos.tags = lib.mkIf (cfg.variant == "5") (
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let
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bootCfg = config.boot.loader.raspberry-pi;
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in
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[
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"raspberry-pi-${bootCfg.variant}"
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bootCfg.bootloader
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config.boot.kernelPackages.kernel.version
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]
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);
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# Common programs
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programs.kdeconnect.enable = lib.mkDefault false;
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# Root user shell configuration
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users.users.root.shell = pkgs.zsh;
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};
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}
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