chore(nix): update to meson/ninja build system

default.nix

@@ -2,10 +2,9 @@
 }:
 with pkgs;
 let
-  firmwareBuilder = callPackage ./nix/firmware.nix {};
+  firmware = callPackage ./nix/firmware.nix {};
   openocd = callPackage ./nix/openocd.nix { };
 in
-with firmwareBuilder;
 {
   openocd = stdenv.mkDerivation {
     name = "openocd-card10";
@@ -20,14 +19,5 @@ with firmwareBuilder;
         --add-flags "-f $out/share/openocd/scripts/target/max32665.cfg"
     '';
   };
-
-  bootloader = firmware "bootloader";
-  ble = loadable "ble";
-  bmatest = loadable "bmatest";
-  bmetest = loadable "bmetest";
-  ecgtest = loadable "ecgtest";
-  Hello_World = loadable "Hello_World";
-  Hello_World_FreeRTOS = loadable "Hello_World_FreeRTOS";
-  imutest = loadable "imutest";
-  ips = loadable "ips";
+  inherit firmware;
 }

nix/firmware.nix

-{ pkgsCross, python3, callPackage }:
+{ pkgsCross, python3, ninja, meson, gcc }:
 
-let
-  crc16 = callPackage ./python-crc16.nix {};
-in rec {
-  firmware = subdir:
-    pkgsCross.arm-embedded.stdenv.mkDerivation {
-      name = "${subdir}";
-      src = ./..;
-      buildInputs = [ ];
-      hardeningDisable= [ "all" ];
-      buildPhase = ''
-        cd ${subdir}
-        make clean
-        make -j ''$NIX_BUILD_CORES
-        make -j ''$NIX_BUILD_CORES build/max32665.elf
-      '';
-      installPhase = ''
-        mkdir -p $out/lib
-        cp build/max32665.elf $out/lib/card10.elf
-      '';
-    };
-
-  loadable = subdir:
-    pkgsCross.arm-embedded.stdenv.mkDerivation {
-      name = "loadable-${subdir}";
-      src = ./..;
-      buildInputs = [ crc16 ];
-      hardeningDisable= [ "all" ];
-      buildPhase = ''
-        cd ${subdir}
-        make clean
-        make -j ''$NIX_BUILD_CORES APP=1
-        make -j ''$NIX_BUILD_CORES build/max32665.bin
-        ${python3}/bin/python ../bootloader/crc_patch.py build/max32665.bin
-      '';
-      installPhase = ''
-        mkdir -p $out/lib
-        cp build/max32665.elf $out/lib/card10.elf
-        cp build/max32665.bin $out/lib/card10.bin
-      '';
-    };
+pkgsCross.armhf-embedded.stdenv.mkDerivation {
+  name = "card10";
+  src = ./..;
+  postPatch = ''
+    substituteInPlace card10-cross.ini \
+      --replace arm-none-eabi arm-none-eabihf
+  '';
+  nativeBuildInputs = [ ninja meson python3 gcc ];
+  mesonFlags = [
+    "--cross-file card10-cross.ini"
+    "--optimization s"
+  ];
+  ninjaFlags = [ "-v" ];
 }

nix/python-crc16.nix

-{ python3Packages }:
-
-python3Packages.buildPythonPackage rec {
-  pname = "crc16";
-  version = "0.1.1";
-  src = python3Packages.fetchPypi {
-    inherit pname version;
-    sha256 = "15nkx0pa4lskwin84flpk8fsw3jqg6wic6v3s83syjqg76h6my61";
-  };
-}

shell.nix

 with import <nixpkgs> {};
-pkgsCross.arm-embedded.stdenv.mkDerivation {
+pkgsCross.armhf-embedded.stdenv.mkDerivation {
   name = "env";
-  buildInputs = [ bashInteractive ];
-  hardeningDisable= [ "all" ];
+  buildInputs = [ ninja meson python3 gcc bashInteractive ];
 }