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move outputs into a module

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This commit is contained in:
Daniel Barlow 2023-02-10 23:10:44 +00:00
parent 0a06319d0c
commit 1a08aaad01
6 changed files with 108 additions and 76 deletions
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8
modules/base.nix
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@ -29,7 +29,13 @@ in {
default = "true";
type = types.lines;
} ;
dts = mkOption { type = types.path; };
dts = {
src = mkOption { type = types.path; };
includes = mkOption {
default = [];
type = types.listOf types.path;
};
};
config = mkOption {
# mostly the values are y n or m, but sometimes
# other strings are also used

78
modules/outputs.nix Normal file
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@ -0,0 +1,78 @@
{
config
, pkgs
, lib
, ...
}:
let
inherit (lib) mkOption types concatStringsSep;
inherit (pkgs) liminix callPackage writeText;
in
{
options = {
outputs = mkOption {
type = types.attrsOf types.package;
default = {};
};
};
config = {
outputs = rec {
squashfs = liminix.builders.squashfs config.filesystem.contents;
tftpd = pkgs.buildPackages.tufted;
kernel = liminix.builders.kernel.override {
inherit (config.kernel) config src extraPatchPhase;
};
dtb = (callPackage ../kernel/dtb.nix {}) {
dts = config.kernel.dts.src;
includes = config.kernel.dts.includes ++ [
"${kernel.headers}/include"
];
};
uimage = (callPackage ../kernel/uimage.nix {}) {
commandLine = concatStringsSep " " config.boot.commandLine;
inherit (config.device) loadAddress entryPoint;
inherit kernel;
inherit dtb;
};
combined-image = pkgs.runCommand "firmware.bin" {
nativeBuildInputs = [ pkgs.buildPackages.ubootTools ];
} ''
mkdir $out
dd if=${uimage} of=$out/firmware.bin bs=128k conv=sync
dd if=${squashfs} of=$out/firmware.bin bs=128k conv=sync,nocreat,notrunc oflag=append
'';
boot-scr =
let
inherit (pkgs.lib.trivial) toHexString;
uimageStart = 10485760; # 0xa00000
squashfsStart = uimageStart + 4 * 1024 * 1024;
squashfsSize = 8;
cmd = "mtdparts=phram0:${toString squashfsSize}M(nix) phram.phram=phram0,0x${toHexString squashfsStart},${toString squashfsSize}Mi memmap=${toString squashfsSize}M\$0x${toHexString squashfsStart} root=1f00";
in
pkgs.buildPackages.writeScript "firmware.bin" ''
setenv serverip 192.168.8.148
setenv ipaddr 192.168.8.251
setenv bootargs '${concatStringsSep " " config.boot.commandLine} ${cmd}'
tftp 0x8${toHexString uimageStart} result/uimage ; tftp 0x8${toHexString squashfsStart} result/squashfs
bootm 0x${toHexString uimageStart}
'';
directory = pkgs.runCommand "liminix" {} (''
mkdir $out
cd $out
ln -s ${squashfs} squashfs
ln -s ${kernel} vmlinux
ln -s ${manifest} manifest
ln -s ${kernel.headers} build
'' +
(if config.device.loadAddress != null then
''
ln -s ${uimage} uimage
ln -s ${boot-scr} flash.scr
'' else ""));
# this exists so that you can run "nix-store -q --tree" on it and find
# out what's in the image, which is nice if it's unexpectedly huge
manifest = writeText "manifest.json" (builtins.toJSON config.filesystem.contents);
};
};
}