52 lines
1.4 KiB
Nix
52 lines
1.4 KiB
Nix
{ stdenv, fetchurl, cpio, xz, pkgs }:
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let
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version = "1.43";
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dmgRange = "420107885-421933300"; # the whole download is 1.3GB, this cuts it down to 2MB
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firmwareIn = "./System/Library/Extensions/AppleCameraInterface.kext/Contents/MacOS/AppleCameraInterface";
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firmwareOut = "firmware.bin";
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firmwareOffset = "81920";
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firmwareSize = "603715";
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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 = "https://support.apple.com/downloads/DL1849/en_US/osxupd10.11.2.dmg";
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sha256 = "1jw6sy9vj27amfak83cs2c7q856y4mk1wix3rl4q10yvd9bl4k9x";
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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/DL1849;
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license = licenses.unfree;
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maintainers = [ maintainers.womfoo ];
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platforms = platforms.linux;
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};
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}
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