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https://github.com/NixOS/nixpkgs.git
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65 lines
2.0 KiB
Nix
65 lines
2.0 KiB
Nix
{ stdenv, fetchurl, cpio, xz, pkgs }:
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let
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version = "1.43_4";
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# Updated according to https://github.com/patjak/bcwc_pcie/pull/81/files
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# and https://github.com/patjak/bcwc_pcie/blob/5a7083bd98b38ef3bd223f7ee531d58f4fb0fe7c/firmware/Makefile#L3-L9
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# and https://github.com/patjak/bcwc_pcie/blob/5a7083bd98b38ef3bd223f7ee531d58f4fb0fe7c/firmware/extract-firmware.sh
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# From the Makefile:
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dmgUrl = "https://support.apple.com/downloads/DL1877/en_US/osxupd10.11.5.dmg";
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dmgRange = "205261917-208085450"; # the whole download is 1.3GB, this cuts it down to 2MB
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# Notes:
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# 1. Be sure to update the sha256 below in the fetch_url
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# 2. Be sure to update the homepage in the meta
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# Also from the Makefile (OS_DRV, OS_DRV_DIR), but seems to not change:
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firmwareIn = "./System/Library/Extensions/AppleCameraInterface.kext/Contents/MacOS/AppleCameraInterface";
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firmwareOut = "firmware.bin";
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# The following are from the extract-firmware.sh
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firmwareOffset = "81920"; # Variable: firmw_offsets
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firmwareSize = "603715"; # Variable: firmw_sizes
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# separated this here as the script will fail without the 'exit 0'
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unpack = pkgs.writeScriptBin "unpack" ''
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xzcat -Q $src | cpio --format odc -i -d ${firmwareIn}
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exit 0
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'';
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in
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stdenv.mkDerivation {
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name = "facetimehd-firmware-${version}";
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src = fetchurl {
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url = dmgUrl;
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sha256 = "0xqkl4yds0n9fdjvnk0v5mj382q02crry6wm2q7j3ncdqwsv02sv";
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curlOpts = "-r ${dmgRange}";
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};
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phases = [ "buildPhase" ];
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buildInputs = [ cpio xz ];
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buildPhase = ''
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${unpack}/bin/unpack
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dd bs=1 skip=${firmwareOffset} count=${firmwareSize} if=${firmwareIn} of=${firmwareOut}.gz &> /dev/null
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mkdir -p $out/lib/firmware/facetimehd
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gunzip -c ${firmwareOut}.gz > $out/lib/firmware/facetimehd/${firmwareOut}
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'';
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meta = with stdenv.lib; {
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description = "facetimehd firmware";
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homepage = https://support.apple.com/downloads/DL1877;
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license = licenses.unfree;
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maintainers = with maintainers; [ womfoo grahamc ];
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platforms = [ "i686-linux" "x86_64-linux" ];
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};
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}
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