uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

nixos/modules/services/ttys/getty.nix

@@ -0,0 +1,162 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.getty;
+
+  baseArgs = [
+    "--login-program" "${cfg.loginProgram}"
+  ] ++ optionals (cfg.autologinUser != null) [
+    "--autologin" cfg.autologinUser
+  ] ++ optionals (cfg.loginOptions != null) [
+    "--login-options" cfg.loginOptions
+  ] ++ cfg.extraArgs;
+
+  gettyCmd = args:
+    "@${pkgs.util-linux}/sbin/agetty agetty ${escapeShellArgs baseArgs} ${args}";
+
+in
+
+{
+
+  ###### interface
+
+  imports = [
+    (mkRenamedOptionModule [ "services" "mingetty" ] [ "services" "getty" ])
+    (mkRemovedOptionModule [ "services" "getty" "serialSpeed" ] ''set non-standard baudrates with `boot.kernelParams` i.e. boot.kernelParams = ["console=ttyS2,1500000"];'')
+  ];
+
+  options = {
+
+    services.getty = {
+
+      autologinUser = mkOption {
+        type = types.nullOr types.str;
+        default = null;
+        description = ''
+          Username of the account that will be automatically logged in at the console.
+          If unspecified, a login prompt is shown as usual.
+        '';
+      };
+
+      loginProgram = mkOption {
+        type = types.path;
+        default = "${pkgs.shadow}/bin/login";
+        defaultText = literalExpression ''"''${pkgs.shadow}/bin/login"'';
+        description = ''
+          Path to the login binary executed by agetty.
+        '';
+      };
+
+      loginOptions = mkOption {
+        type = types.nullOr types.str;
+        default = null;
+        description = ''
+          Template for arguments to be passed to
+          <citerefentry><refentrytitle>login</refentrytitle>
+          <manvolnum>1</manvolnum></citerefentry>.
+
+          See <citerefentry><refentrytitle>agetty</refentrytitle>
+          <manvolnum>1</manvolnum></citerefentry> for details,
+          including security considerations.  If unspecified, agetty
+          will not be invoked with a <option>--login-options</option>
+          option.
+        '';
+        example = "-h darkstar -- \\u";
+      };
+
+      extraArgs = mkOption {
+        type = types.listOf types.str;
+        default = [ ];
+        description = ''
+          Additional arguments passed to agetty.
+        '';
+        example = [ "--nohostname" ];
+      };
+
+      greetingLine = mkOption {
+        type = types.str;
+        description = ''
+          Welcome line printed by agetty.
+          The default shows current NixOS version label, machine type and tty.
+        '';
+      };
+
+      helpLine = mkOption {
+        type = types.lines;
+        default = "";
+        description = ''
+          Help line printed by agetty below the welcome line.
+          Used by the installation CD to give some hints on
+          how to proceed.
+        '';
+      };
+
+    };
+
+  };
+
+
+  ###### implementation
+
+  config = {
+    # Note: this is set here rather than up there so that changing
+    # nixos.label would not rebuild manual pages
+    services.getty.greetingLine = mkDefault ''<<< Welcome to NixOS ${config.system.nixos.label} (\m) - \l >>>'';
+
+    systemd.services."getty@" =
+      { serviceConfig.ExecStart = [
+          "" # override upstream default with an empty ExecStart
+          (gettyCmd "--noclear --keep-baud %I 115200,38400,9600 $TERM")
+        ];
+        restartIfChanged = false;
+      };
+
+    systemd.services."serial-getty@" =
+      { serviceConfig.ExecStart = [
+          "" # override upstream default with an empty ExecStart
+          (gettyCmd "%I --keep-baud $TERM")
+        ];
+        restartIfChanged = false;
+      };
+
+    systemd.services."autovt@" =
+      { serviceConfig.ExecStart = [
+          "" # override upstream default with an empty ExecStart
+          (gettyCmd "--noclear %I $TERM")
+        ];
+        restartIfChanged = false;
+      };
+
+    systemd.services."container-getty@" =
+      { serviceConfig.ExecStart = [
+          "" # override upstream default with an empty ExecStart
+          (gettyCmd "--noclear --keep-baud pts/%I 115200,38400,9600 $TERM")
+        ];
+        restartIfChanged = false;
+      };
+
+    systemd.services.console-getty =
+      { serviceConfig.ExecStart = [
+          "" # override upstream default with an empty ExecStart
+          (gettyCmd "--noclear --keep-baud console 115200,38400,9600 $TERM")
+        ];
+        serviceConfig.Restart = "always";
+        restartIfChanged = false;
+        enable = mkDefault config.boot.isContainer;
+      };
+
+    environment.etc.issue =
+      { # Friendly greeting on the virtual consoles.
+        source = pkgs.writeText "issue" ''
+
+          ${config.services.getty.greetingLine}
+          ${config.services.getty.helpLine}
+
+        '';
+      };
+
+  };
+
+}

nixos/modules/services/ttys/gpm.nix

@@ -0,0 +1,57 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+
+  cfg = config.services.gpm;
+
+in
+
+{
+
+  ###### interface
+
+  options = {
+
+    services.gpm = {
+
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Whether to enable GPM, the General Purpose Mouse daemon,
+          which enables mouse support in virtual consoles.
+        '';
+      };
+
+      protocol = mkOption {
+        type = types.str;
+        default = "ps/2";
+        description = "Mouse protocol to use.";
+      };
+
+    };
+
+  };
+
+
+  ###### implementation
+
+  config = mkIf cfg.enable {
+
+    systemd.services.gpm =
+      { description = "Console Mouse Daemon";
+
+        wantedBy = [ "multi-user.target" ];
+        requires = [ "dev-input-mice.device" ];
+        after = [ "dev-input-mice.device" ];
+
+        serviceConfig.ExecStart = "@${pkgs.gpm}/sbin/gpm gpm -m /dev/input/mice -t ${cfg.protocol}";
+        serviceConfig.Type = "forking";
+        serviceConfig.PIDFile = "/run/gpm.pid";
+      };
+
+  };
+
+}

nixos/modules/services/ttys/kmscon.nix

@@ -0,0 +1,116 @@
+{ config, pkgs, lib, ... }:
+let
+  inherit (lib) mapAttrs mkIf mkOption optional optionals types;
+
+  cfg = config.services.kmscon;
+
+  autologinArg = lib.optionalString (cfg.autologinUser != null) "-f ${cfg.autologinUser}";
+
+  configDir = pkgs.writeTextFile { name = "kmscon-config"; destination = "/kmscon.conf"; text = cfg.extraConfig; };
+in {
+  options = {
+    services.kmscon = {
+      enable = mkOption {
+        description = ''
+          Use kmscon as the virtual console instead of gettys.
+          kmscon is a kms/dri-based userspace virtual terminal implementation.
+          It supports a richer feature set than the standard linux console VT,
+          including full unicode support, and when the video card supports drm
+          should be much faster.
+        '';
+        type = types.bool;
+        default = false;
+      };
+
+      hwRender = mkOption {
+        description = "Whether to use 3D hardware acceleration to render the console.";
+        type = types.bool;
+        default = false;
+      };
+
+      fonts = mkOption {
+        description = "Fonts used by kmscon, in order of priority.";
+        default = null;
+        example = lib.literalExpression ''[ { name = "Source Code Pro"; package = pkgs.source-code-pro; } ]'';
+        type = with types;
+          let fontType = submodule {
+                options = {
+                  name = mkOption { type = str; description = "Font name, as used by fontconfig."; };
+                  package = mkOption { type = package; description = "Package providing the font."; };
+                };
+          }; in nullOr (nonEmptyListOf fontType);
+      };
+
+      extraConfig = mkOption {
+        description = "Extra contents of the kmscon.conf file.";
+        type = types.lines;
+        default = "";
+        example = "font-size=14";
+      };
+
+      extraOptions = mkOption {
+        description = "Extra flags to pass to kmscon.";
+        type = types.separatedString " ";
+        default = "";
+        example = "--term xterm-256color";
+      };
+
+      autologinUser = mkOption {
+        type = types.nullOr types.str;
+        default = null;
+        description = ''
+          Username of the account that will be automatically logged in at the console.
+          If unspecified, a login prompt is shown as usual.
+        '';
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    # Largely copied from unit provided with kmscon source
+    systemd.units."kmsconvt@.service".text = ''
+      [Unit]
+      Description=KMS System Console on %I
+      Documentation=man:kmscon(1)
+      After=systemd-user-sessions.service
+      After=plymouth-quit-wait.service
+      After=systemd-logind.service
+      After=systemd-vconsole-setup.service
+      Requires=systemd-logind.service
+      Before=getty.target
+      Conflicts=getty@%i.service
+      OnFailure=getty@%i.service
+      IgnoreOnIsolate=yes
+      ConditionPathExists=/dev/tty0
+
+      [Service]
+      ExecStart=
+      ExecStart=${pkgs.kmscon}/bin/kmscon "--vt=%I" ${cfg.extraOptions} --seats=seat0 --no-switchvt --configdir ${configDir} --login -- ${pkgs.shadow}/bin/login -p ${autologinArg}
+      UtmpIdentifier=%I
+      TTYPath=/dev/%I
+      TTYReset=yes
+      TTYVHangup=yes
+      TTYVTDisallocate=yes
+
+      X-RestartIfChanged=false
+    '';
+
+    systemd.suppressedSystemUnits = [ "autovt@.service" ];
+    systemd.units."kmsconvt@.service".aliases = [ "autovt@.service" ];
+
+    systemd.services.systemd-vconsole-setup.enable = false;
+
+    services.kmscon.extraConfig =
+      let
+        render = optionals cfg.hwRender [ "drm" "hwaccel" ];
+        fonts = optional (cfg.fonts != null) "font-name=${lib.concatMapStringsSep ", " (f: f.name) cfg.fonts}";
+      in lib.concatStringsSep "\n" (render ++ fonts);
+
+    hardware.opengl.enable = mkIf cfg.hwRender true;
+
+    fonts = mkIf (cfg.fonts != null) {
+      fontconfig.enable = true;
+      fonts = map (f: f.package) cfg.fonts;
+    };
+  };
+}