mirror of
https://github.com/nix-community/raspberry-pi-nix.git
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add hardware.raspberrypi.config-generated option
outputs the generated config as text
This commit is contained in:
Travis Staton
parent
6e0da67830
commit
24f5b92db8
1 changed files with 118 additions and 100 deletions
218
rpi/config.nix
218
rpi/config.nix
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@ -1,126 +1,144 @@
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{ lib, config, pkgs, ... }:
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let
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cfg = config.hardware.raspberry-pi;
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render-raspberrypi-config = let
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render-options = opts:
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lib.strings.concatStringsSep "\n" (render-dt-kvs opts);
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render-dt-param = x: "dtparam=" + x;
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render-dt-kv = k: v:
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if isNull v.value then
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k
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else
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let vstr = toString v.value; in "${k}=${vstr}";
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render-dt-kvs = x:
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lib.attrsets.mapAttrsToList render-dt-kv
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(lib.filterAttrs (k: v: v.enable) x);
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render-dt-overlay = { overlay, args }:
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"dtoverlay=" + overlay + "\n"
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+ lib.strings.concatMapStringsSep "\n" render-dt-param args + "\n"
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+ "dtoverlay=";
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render-base-dt-params = params:
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lib.strings.concatMapStringsSep "\n" render-dt-param
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(render-dt-kvs params);
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render-dt-overlays = overlays:
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lib.strings.concatMapStringsSep "\n" render-dt-overlay
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(lib.attrsets.mapAttrsToList (k: v: {
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overlay = k;
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args = render-dt-kvs v.params;
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}) (lib.filterAttrs (k: v: v.enable) overlays));
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render-config-section = k:
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{ options, base-dt-params, dt-overlays }:
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let
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all-config = lib.concatStringsSep "\n" (lib.filter (x: x != "") [
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(render-options options)
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(render-base-dt-params base-dt-params)
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(render-dt-overlays dt-overlays)
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]);
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in ''
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[${k}]
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${all-config}
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'';
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in conf:
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lib.strings.concatStringsSep "\n"
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(lib.attrsets.mapAttrsToList render-config-section conf);
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in {
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render-raspberrypi-config =
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let
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render-options = opts:
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lib.strings.concatStringsSep "\n" (render-dt-kvs opts);
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render-dt-param = x: "dtparam=" + x;
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render-dt-kv = k: v:
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if isNull v.value then
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k
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else
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let vstr = toString v.value; in "${k}=${vstr}";
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render-dt-kvs = x:
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lib.attrsets.mapAttrsToList render-dt-kv
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(lib.filterAttrs (k: v: v.enable) x);
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render-dt-overlay = { overlay, args }:
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"dtoverlay=" + overlay + "\n"
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+ lib.strings.concatMapStringsSep "\n" render-dt-param args + "\n"
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+ "dtoverlay=";
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render-base-dt-params = params:
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lib.strings.concatMapStringsSep "\n" render-dt-param
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(render-dt-kvs params);
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render-dt-overlays = overlays:
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lib.strings.concatMapStringsSep "\n" render-dt-overlay
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(lib.attrsets.mapAttrsToList
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(k: v: {
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overlay = k;
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args = render-dt-kvs v.params;
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})
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(lib.filterAttrs (k: v: v.enable) overlays));
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render-config-section = k:
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{ options, base-dt-params, dt-overlays }:
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let
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all-config = lib.concatStringsSep "\n" (lib.filter (x: x != "") [
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(render-options options)
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(render-base-dt-params base-dt-params)
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(render-dt-overlays dt-overlays)
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]);
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in
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''
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[${k}]
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${all-config}
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'';
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in
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conf:
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lib.strings.concatStringsSep "\n"
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(lib.attrsets.mapAttrsToList render-config-section conf);
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in
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{
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options = {
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hardware.raspberry-pi = {
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config = let
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rpi-config-param = {
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options = {
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enable = lib.mkEnableOption "attr";
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value =
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lib.mkOption { type = with lib.types; oneOf [ int str bool ]; };
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};
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};
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dt-param = {
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options = {
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enable = lib.mkEnableOption "attr";
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value = lib.mkOption {
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type = with lib.types; nullOr (oneOf [ int str bool ]);
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default = null;
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config =
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let
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rpi-config-param = {
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options = {
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enable = lib.mkEnableOption "attr";
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value =
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lib.mkOption { type = with lib.types; oneOf [ int str bool ]; };
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};
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};
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};
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dt-overlay = {
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options = {
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enable = lib.mkEnableOption "overlay";
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params = lib.mkOption {
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type = with lib.types; attrsOf (submodule dt-param);
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};
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};
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};
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raspberry-pi-config-options = {
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options = {
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options = lib.mkOption {
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type = with lib.types; attrsOf (submodule rpi-config-param);
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default = { };
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example = {
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enable_gic = {
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enable = true;
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value = true;
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};
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arm_boost = {
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enable = true;
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value = true;
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};
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dt-param = {
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options = {
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enable = lib.mkEnableOption "attr";
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value = lib.mkOption {
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type = with lib.types; nullOr (oneOf [ int str bool ]);
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default = null;
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};
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};
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base-dt-params = lib.mkOption {
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type = with lib.types; attrsOf (submodule rpi-config-param);
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default = { };
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example = {
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i2c = {
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enable = true;
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value = "on";
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};
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audio = {
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enable = true;
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value = "on";
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};
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};
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dt-overlay = {
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options = {
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enable = lib.mkEnableOption "overlay";
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params = lib.mkOption {
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type = with lib.types; attrsOf (submodule dt-param);
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};
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description = "parameters to pass to the base dtb";
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};
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dt-overlays = lib.mkOption {
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type = with lib.types; attrsOf (submodule dt-overlay);
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default = { };
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example = { vc4-kms-v3d = { cma-256 = { enable = true; }; }; };
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description = "dtb overlays to apply";
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};
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};
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raspberry-pi-config-options = {
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options = {
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options = lib.mkOption {
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type = with lib.types; attrsOf (submodule rpi-config-param);
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default = { };
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example = {
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enable_gic = {
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enable = true;
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value = true;
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};
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arm_boost = {
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enable = true;
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value = true;
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};
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};
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};
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base-dt-params = lib.mkOption {
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type = with lib.types; attrsOf (submodule rpi-config-param);
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default = { };
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example = {
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i2c = {
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enable = true;
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value = "on";
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};
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audio = {
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enable = true;
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value = "on";
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};
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};
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description = "parameters to pass to the base dtb";
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};
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dt-overlays = lib.mkOption {
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type = with lib.types; attrsOf (submodule dt-overlay);
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default = { };
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example = { vc4-kms-v3d = { cma-256 = { enable = true; }; }; };
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description = "dtb overlays to apply";
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};
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};
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};
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in
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lib.mkOption {
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type = with lib.types; attrsOf (submodule raspberry-pi-config-options);
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};
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in lib.mkOption {
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type = with lib.types; attrsOf (submodule raspberry-pi-config-options);
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config-generated = lib.mkOption {
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type = lib.types.str;
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description = "the config text generated by raspberrypi.hardware.config";
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readOnly = true;
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};
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config-output = lib.mkOption {
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type = lib.types.package;
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default = pkgs.writeTextFile {
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name = "config.txt";
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text = ''
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# This is a generated file. Do not edit!
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${render-raspberrypi-config cfg.config}
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${cfg.config-generated}
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'';
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};
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};
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};
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};
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config = {
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hardware.raspberry-pi.config-generated = render-raspberrypi-config cfg.config;
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};
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}
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