# Maintainer: Thomas Bächler <thomas@archlinux.org>

# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
#  - don't compress firmware for kernels older than 5.3

pkgbase=linux-firmware
pkgname=(linux-firmware-whence linux-firmware amd-ucode
         linux-firmware-{nfp,mellanox,marvell,qcom,liquidio,qlogic,bnx2x}
)
_tag=20241017
#_commit=c979a06518069901e4c43e0019d3a15b435b7e16
pkgver=20241017.22a6c7dc
pkgrel=1
pkgdesc="Firmware files for Linux"
url="https://gitlab.com/kernel-firmware/linux-firmware"
license=(
  GPL-2.0-only
  GPL-2.0-or-later
  GPL-3.0-only
  custom
)
arch=('any')
makedepends=(
  git
  rdfind
  python
)
options=(
  !strip
  !debug
)
source=("git+$url.git?signed#tag=${_tag}")
b2sums=('8befc4883f6c69682a6b7c603aff6ca80e7e79277ac3ad698e731a904b22cdfd55c7d32a661621ef47a88d7298be960535b7ebcc100d847eea79cda3124ab8f5')
validpgpkeys=('4CDE8575E547BF835FE15807A31B6BD72486CFD6') # Josh Boyer <jwboyer@fedoraproject.org>

_backports=(
)

prepare() {
  cd ${pkgbase}

  local _c
  for _c in "${_backports[@]}"; do
    git log --oneline -1 "${_c}"
    git cherry-pick -n "${_c}"
  done
}

pkgver() {
  cd ${pkgbase}

  # Commit date + short rev
  echo $(TZ=UTC git show -s --pretty=%cd --date=format-local:%Y%m%d HEAD).$(git rev-parse --short HEAD)
}

build() {
  mkdir -p kernel/x86/microcode
  cat ${pkgbase}/amd-ucode/microcode_amd*.bin > kernel/x86/microcode/AuthenticAMD.bin

  # Reproducibility: set the timestamp on the bin file
  if [[ -n ${SOURCE_DATE_EPOCH} ]]; then
    touch -d @${SOURCE_DATE_EPOCH} kernel/x86/microcode/AuthenticAMD.bin
  fi

  # Reproducibility: strip the inode and device numbers from the cpio archive
  echo kernel/x86/microcode/AuthenticAMD.bin |
    bsdtar --uid 0 --gid 0 -cnf - -T - |
    bsdtar --null -cf - --format=newc @- > amd-ucode.img
}

_pick() {
  local p="$1" f d; shift
  for f; do
    d="$srcdir/$p/${f#$pkgdir/}"
    mkdir -p "$(dirname "$d")"
    mv "$f" "$d"
    rmdir -p --ignore-fail-on-non-empty "$(dirname "$f")"
  done
}

package_linux-firmware-whence() {
  pkgdesc+=" - contains the WHENCE license file which documents the vendor license details"

  install -Dt "${pkgdir}/usr/share/licenses/${pkgname}" -m644 ${pkgbase}/WHENCE
}

package_linux-firmware() {
  depends=('linux-firmware-whence')

  cd ${pkgbase}

  make DESTDIR="${pkgdir}" FIRMWAREDIR=/usr/lib/firmware install

  # useless without CONFIG_MICROCODE_LATE_LOADING
  # https://bugs.archlinux.org/task/46591
  #
  # # Trigger a microcode reload for configurations not using early updates
  # echo 'w /sys/devices/system/cpu/microcode/reload - - - - 1' |
  #   install -Dm644 /dev/stdin "${pkgdir}/usr/lib/tmpfiles.d/${pkgname}.conf"

  install -Dt "${pkgdir}/usr/share/licenses/${pkgname}" -m644 LICEN*

  cd "${pkgdir}"

  # split
  _pick amd-ucode usr/lib/firmware/amd-ucode

  _pick linux-firmware-nfp usr/lib/firmware/netronome
  _pick linux-firmware-nfp usr/share/licenses/${pkgname}/LICENCE.Netronome

  _pick linux-firmware-mellanox usr/lib/firmware/mellanox

  _pick linux-firmware-marvell usr/lib/firmware/{libertas,mwl8k,mwlwifi,mrvl}
  _pick linux-firmware-marvell usr/share/licenses/${pkgname}/LICENCE.{Marvell,NXP}

  _pick linux-firmware-qcom usr/lib/firmware/{qcom,a300_*}
  _pick linux-firmware-qcom usr/share/licenses/${pkgname}/LICENSE.qcom*

  _pick linux-firmware-liquidio usr/lib/firmware/liquidio
  _pick linux-firmware-liquidio usr/share/licenses/${pkgname}/LICENCE.cavium_liquidio

  _pick linux-firmware-qlogic usr/lib/firmware/{qlogic,qed,ql2???_*,c{b,t,t2}fw-*}
  _pick linux-firmware-qlogic usr/share/licenses/${pkgname}/LICENCE.{qla1280,qla2xxx}

  _pick linux-firmware-bnx2x usr/lib/firmware/bnx2x*
}

package_amd-ucode() {
  pkgdesc="Microcode update image for AMD CPUs"
  license=(custom)

  mv -v $pkgname/* "$pkgdir"

  install -Dt "${pkgdir}/boot" -m644 amd-ucode.img

  install -Dt "${pkgdir}/usr/share/licenses/${pkgname}" -m644 ${pkgbase}/LICENSE.amd-ucode
}

package_linux-firmware-nfp() {
  pkgdesc+=" - nfp / Firmware for Netronome Flow Processors"
  depends=('linux-firmware-whence')

  mv -v linux-firmware-nfp/* "${pkgdir}"
}

package_linux-firmware-mellanox() {
  pkgdesc+=" - mellanox / Firmware for Mellanox Spectrum switches"
  depends=('linux-firmware-whence')

  mv -v linux-firmware-mellanox/* "${pkgdir}"
}

package_linux-firmware-marvell() {
  pkgdesc+=" - marvell / Firmware for Marvell devices"
  depends=('linux-firmware-whence')

  mv -v linux-firmware-marvell/* "${pkgdir}"
}

package_linux-firmware-qcom() {
  pkgdesc+=" - qcom / Firmware for Qualcomm SoCs"
  depends=('linux-firmware-whence')

  mv -v linux-firmware-qcom/* "${pkgdir}"
}

package_linux-firmware-liquidio() {
  pkgdesc+=" - liquidio / Firmware for Cavium LiquidIO server adapters"
  depends=('linux-firmware-whence')

  mv -v linux-firmware-liquidio/* "${pkgdir}"
}

package_linux-firmware-qlogic() {
  pkgdesc+=" - qlogic / Firmware for QLogic devices"
  depends=('linux-firmware-whence')

  mv -v linux-firmware-qlogic/* "${pkgdir}"
}

package_linux-firmware-bnx2x() {
  pkgdesc+=" - bnx2x / Firmware for Broadcom NetXtreme II 10Gb ethernet adapters"
  depends=('linux-firmware-whence')

  mv -v linux-firmware-bnx2x/* "${pkgdir}"
}