# Globalscale ESPRESSOBin
# Maintainer: Kevin Mihelich <kevin@archlinuxarm.org>

buildarch=8

pkgbase=linux-espressobin
_srcname=linux-4.12
_kernelname=${pkgbase#linux}
_desc="Globalscale ESPRESSOBin"
pkgver=4.12.2
pkgrel=1
arch=('aarch64')
url="http://www.kernel.org/"
license=('GPL2')
makedepends=('xmlto' 'docbook-xsl' 'kmod' 'inetutils' 'bc' 'git')
options=('!strip')
source=("http://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
        "http://www.kernel.org/pub/linux/kernel/v4.x/patch-${pkgver}.xz"
        '0001-ARM64-dts-marvell-armada37xx-Fix-timer-interrupt-spe.patch'
        '0002-ARM64-dts-marvell-armada37xx-Fix-GIC-maintenance-int.patch'
        '0003-ARM64-dts-marvell-armada37xx-Enable-memory-mapped-GI.patch'
        '0004-ARM64-dts-marvell-armada37xx-Wire-PMUv3.patch'
        '0005-ARM64-dts-marvell-armada37xx-Enable-USB2-on-espresso.patch'
        '0006-arm64-dts-marvell-Enable-second-SDHCI-controller-in-.patch'
        '0007-arm64-dts-marvell-Add-microsd-card-definition-for-th.patch'
        '0008-arm64-dts-marvell-armada37xx-Add-eth0-alias.patch'
        '0009-fix-pci-aardvark-disable-LOS-state-by-default.patch'
        '0010-fix-pci-aardvark-use-isr1-interrupt-in-legacy-irq-mo.patch'
        '0011-pci-aardvard-set-host-and-device-to-the-same-MAX-pay.patch'
        '0012-fix-pcie-aardvark-correct-the-default-MAX-payload-si.patch'
        'config'
        'linux.preset')
md5sums=('fc454157e2d024d401a60905d6481c6b'
         'df72b6950492a79610d443d8992b3293'
         'b2a7116c7b3908fe1603c796f83fb56c'
         '2f43eba428830c7a7bf4a520f7077535'
         '9d0f72905f1f1320f52d6f65dd668d0b'
         'b50d466feecea898a74c3867319fb90e'
         'd79d1f0f7d9a7c35137229e70a30c0d7'
         '3e60cf410ae3bb37c01d2eb04501d174'
         '57dace766b81b0680ac43f37765d7018'
         'd659197cb859a9976123b73dc796db9f'
         'b24d333e00622a48ea68058b6157d276'
         '4f340086bdc4fab53ac271f821a62176'
         'f3f6c6fe3645783486aac43e4d7c00ec'
         'd540534a40050f4dfea2bd658b89e038'
         'aafe13461c5fed44285f685025ec610f'
         'd8d30aa4a9d4c2b8d4ea53faf46ccf80')

prepare() {
  cd "${srcdir}/${_srcname}"

  # add upstream patch
  git apply --whitespace=nowarn ../patch-${pkgver}

  # ALARM patches
  git apply ../0001-ARM64-dts-marvell-armada37xx-Fix-timer-interrupt-spe.patch
  git apply ../0002-ARM64-dts-marvell-armada37xx-Fix-GIC-maintenance-int.patch
  git apply ../0003-ARM64-dts-marvell-armada37xx-Enable-memory-mapped-GI.patch
  git apply ../0004-ARM64-dts-marvell-armada37xx-Wire-PMUv3.patch
  git apply ../0005-ARM64-dts-marvell-armada37xx-Enable-USB2-on-espresso.patch
  git apply ../0006-arm64-dts-marvell-Enable-second-SDHCI-controller-in-.patch
  git apply ../0007-arm64-dts-marvell-Add-microsd-card-definition-for-th.patch
  git apply ../0008-arm64-dts-marvell-armada37xx-Add-eth0-alias.patch
  git apply ../0009-fix-pci-aardvark-disable-LOS-state-by-default.patch
  git apply ../0010-fix-pci-aardvark-use-isr1-interrupt-in-legacy-irq-mo.patch
  git apply ../0011-pci-aardvard-set-host-and-device-to-the-same-MAX-pay.patch
  git apply ../0012-fix-pcie-aardvark-correct-the-default-MAX-payload-si.patch

  cat "${srcdir}/config" > ./.config

  # add pkgrel to extraversion
  sed -ri "s|^(EXTRAVERSION =)(.*)|\1 \2-${pkgrel}|" Makefile

  # don't run depmod on 'make install'. We'll do this ourselves in packaging
  sed -i '2iexit 0' scripts/depmod.sh
}

build() {
  cd "${srcdir}/${_srcname}"

  # get kernel version
  make prepare

  # load configuration
  # Configure the kernel. Replace the line below with one of your choice.
  #make menuconfig # CLI menu for configuration
  #make nconfig # new CLI menu for configuration
  #make xconfig # X-based configuration
  #make oldconfig # using old config from previous kernel version
  # ... or manually edit .config

  # Copy back our configuration (use with new kernel version)
  #cp ./.config ../${pkgbase}.config

  ####################
  # stop here
  # this is useful to configure the kernel
  #msg "Stopping build"
  #return 1
  ####################

  #yes "" | make config

  # build!
  unset LDFLAGS
  make ${MAKEFLAGS} Image Image.gz modules dtbs
}

_package() {
  pkgdesc="The Linux Kernel and modules - ${_desc}"
  depends=('coreutils' 'linux-firmware' 'kmod' 'mkinitcpio>=0.7' 'uboot-tools')
  optdepends=('crda: to set the correct wireless channels of your country')
  provides=('kernel26' "linux=${pkgver}")
  replaces=('linux-armv8')
  conflicts=('linux')
  backup=("etc/mkinitcpio.d/${pkgbase}.preset")
  install=${pkgname}.install

  cd "${srcdir}/${_srcname}"

  KARCH=arm64

  # get kernel version
  _kernver="$(make kernelrelease)"
  _basekernel=${_kernver%%-*}
  _basekernel=${_basekernel%.*}

  mkdir -p "${pkgdir}"/{lib/modules,lib/firmware}
  make INSTALL_MOD_PATH="${pkgdir}" modules_install
  make INSTALL_DTBS_PATH="${pkgdir}/boot/dtbs" dtbs_install
  cp arch/$KARCH/boot/Image{,.gz} "${pkgdir}/boot"

  # set correct depmod command for install
  sed \
    -e  "s/KERNEL_NAME=.*/KERNEL_NAME=${_kernelname}/g" \
    -e  "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/g" \
    -i "${startdir}/${pkgname}.install"

  # install mkinitcpio preset file for kernel
  install -D -m644 "${srcdir}/linux.preset" "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset"
  sed \
    -e "1s|'linux.*'|'${pkgbase}'|" \
    -e "s|ALL_kver=.*|ALL_kver=\"${_kernver}\"|" \
    -i "${pkgdir}/etc/mkinitcpio.d/${pkgbase}.preset"

  # remove build and source links
  rm -f "${pkgdir}"/lib/modules/${_kernver}/{source,build}
  # remove the firmware
  rm -rf "${pkgdir}/lib/firmware"
  # make room for external modules
  ln -s "../extramodules-${_basekernel}${_kernelname:--ARCH}" "${pkgdir}/lib/modules/${_kernver}/extramodules"
  # add real version for building modules and running depmod from post_install/upgrade
  mkdir -p "${pkgdir}/lib/modules/extramodules-${_basekernel}${_kernelname:--ARCH}"
  echo "${_kernver}" > "${pkgdir}/lib/modules/extramodules-${_basekernel}${_kernelname:--ARCH}/version"

  # Now we call depmod...
  depmod -b "$pkgdir" -F System.map "$_kernver"

  # move module tree /lib -> /usr/lib
  mkdir -p "${pkgdir}/usr"
  mv "$pkgdir/lib" "$pkgdir/usr"

  # add vmlinux
  install -D -m644 vmlinux "${pkgdir}/usr/lib/modules/${_kernver}/build/vmlinux"
}

_package-headers() {
  pkgdesc="Header files and scripts for building modules for linux kernel - ${_desc}"
  provides=("linux-headers=${pkgver}")
  replaces=('linux-armv8-headers')
  conflicts=('linux-headers')

  install -dm755 "${pkgdir}/usr/lib/modules/${_kernver}"

  cd "${srcdir}/${_srcname}"
  install -D -m644 Makefile \
    "${pkgdir}/usr/lib/modules/${_kernver}/build/Makefile"
  install -D -m644 kernel/Makefile \
    "${pkgdir}/usr/lib/modules/${_kernver}/build/kernel/Makefile"
  install -D -m644 .config \
    "${pkgdir}/usr/lib/modules/${_kernver}/build/.config"

  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/include"

  for i in acpi asm-generic clocksource config crypto drm generated keys linux \
    math-emu media net pcmcia scsi soc sound trace uapi video xen; do
    cp -a include/${i} "${pkgdir}/usr/lib/modules/${_kernver}/build/include/"
  done

  # copy arch includes for external modules
  mkdir -p ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH
  cp -a arch/$KARCH/include ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/

  # copy files necessary for later builds, like nvidia and vmware
  cp Module.symvers "${pkgdir}/usr/lib/modules/${_kernver}/build"
  cp -a scripts "${pkgdir}/usr/lib/modules/${_kernver}/build"

  # fix permissions on scripts dir
  chmod og-w -R "${pkgdir}/usr/lib/modules/${_kernver}/build/scripts"
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/.tmp_versions"

  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/kernel"

  cp arch/${KARCH}/Makefile "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/"

  cp arch/${KARCH}/kernel/asm-offsets.s "${pkgdir}/usr/lib/modules/${_kernver}/build/arch/${KARCH}/kernel/"

  # add docbook makefile
  install -D -m644 Documentation/DocBook/Makefile \
    "${pkgdir}/usr/lib/modules/${_kernver}/build/Documentation/DocBook/Makefile"

  # add dm headers
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/md"
  cp drivers/md/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/md"

  # add inotify.h
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/include/linux"
  cp include/linux/inotify.h "${pkgdir}/usr/lib/modules/${_kernver}/build/include/linux/"

  # add wireless headers
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/net/mac80211/"
  cp net/mac80211/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/net/mac80211/"

  # add dvb headers for external modules
  # in reference to:
  # http://bugs.archlinux.org/task/9912
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-core"
  cp drivers/media/dvb-core/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-core/"
  # and...
  # http://bugs.archlinux.org/task/11194
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/include/config/dvb/"
  cp include/config/dvb/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/include/config/dvb/"

  # add dvb headers for http://mcentral.de/hg/~mrec/em28xx-new
  # in reference to:
  # http://bugs.archlinux.org/task/13146
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
  cp drivers/media/dvb-frontends/lgdt330x.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/i2c/"
  cp drivers/media/i2c/msp3400-driver.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/i2c/"

  # add dvb headers
  # in reference to:
  # http://bugs.archlinux.org/task/20402
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/usb/dvb-usb"
  cp drivers/media/usb/dvb-usb/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/usb/dvb-usb/"
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends"
  cp drivers/media/dvb-frontends/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/dvb-frontends/"
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/tuners"
  cp drivers/media/tuners/*.h "${pkgdir}/usr/lib/modules/${_kernver}/build/drivers/media/tuners/"

  # add xfs and shmem for aufs building
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/fs/xfs"
  mkdir -p "${pkgdir}/usr/lib/modules/${_kernver}/build/mm"

  # copy in Kconfig files
  for i in $(find . -name "Kconfig*"); do
    mkdir -p "${pkgdir}"/usr/lib/modules/${_kernver}/build/`echo ${i} | sed 's|/Kconfig.*||'`
    cp ${i} "${pkgdir}/usr/lib/modules/${_kernver}/build/${i}"
  done

  chown -R root.root "${pkgdir}/usr/lib/modules/${_kernver}/build"
  find "${pkgdir}/usr/lib/modules/${_kernver}/build" -type d -exec chmod 755 {} \;

  # strip scripts directory
  find "${pkgdir}/usr/lib/modules/${_kernver}/build/scripts" -type f -perm -u+w 2>/dev/null | while read binary ; do
    case "$(file -bi "${binary}")" in
      *application/x-sharedlib*) # Libraries (.so)
        /usr/bin/strip ${STRIP_SHARED} "${binary}";;
      *application/x-archive*) # Libraries (.a)
        /usr/bin/strip ${STRIP_STATIC} "${binary}";;
      *application/x-executable*) # Binaries
        /usr/bin/strip ${STRIP_BINARIES} "${binary}";;
    esac
  done

  # remove unneeded architectures
  rm -rf "${pkgdir}"/usr/lib/modules/${_kernver}/build/arch/{alpha,arc,arm,arm26,avr32,blackfin,c6x,cris,frv,h8300,hexagon,ia64,m32r,m68k,m68knommu,metag,mips,microblaze,mn10300,openrisc,parisc,powerpc,ppc,s390,score,sh,sh64,sparc,sparc64,tile,unicore32,um,v850,x86,xtensa}
}

pkgname=("${pkgbase}" "${pkgbase}-headers")
for _p in ${pkgname[@]}; do
  eval "package_${_p}() {
    _package${_p#${pkgbase}}
  }"
done