# ARMv7 multi-platform
# Maintainer: Kevin Mihelich <kevin@archlinuxarm.org>

buildarch=4

_rcver=4.2
_rcrel=5
_rcnrel=armv7-x0

pkgbase=linux-armv7-rc
_srcname=linux-4.$((${_rcver##*.}-1))
_kernelname=${pkgbase#linux}
_desc="ARMv7 multi-platform"
pkgver=${_rcver}.rc${_rcrel}
pkgrel=1
arch=('armv7h')
url="http://www.kernel.org/"
license=('GPL2')
makedepends=('xmlto' 'docbook-xsl' 'kmod' 'inetutils' 'bc' 'git' 'uboot-tools')
options=('!strip')
source=("http://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
        "https://www.kernel.org/pub/linux/kernel/v4.x/testing/patch-${_rcver}-rc${_rcrel}.xz"
        "http://rcn-ee.com/deb/sid-armhf/v${_rcver}.0-rc${_rcrel}-${_rcnrel}/patch-${_rcver}-rc${_rcrel}-${_rcnrel}.diff.gz"
        '0001-ARM-atags-add-support-for-Marvell-s-u-boot.patch'
        '0002-ARM-atags-fdt-retrieve-MAC-addresses-from-Marvell-bo.patch'
        '0003-SMILE-Plug-device-tree-file.patch'
        '0004-fix-mvsdio-eMMC-timing.patch'
        '0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch'
        '0006-ARM-TLV320AIC23-SoC-Audio-Codec-Fix-errors-reported-.patch'
        '0007-set-default-cubietruck-led-triggers.patch'
        '0008-USB-armory-support.patch'
        'config')
md5sums=('fe9dc0f6729f36400ea81aa41d614c37'
         '6715134ec734556d5212594061680c0a'
         'bee543d6fa663ce2bb9089e59c656d55'
         '61f728f854713d17a3d4ef00f8e38f1e'
         'bc39bcc5d752155854f31eb7758db5e8'
         'e871d819421abab551d8219b62cccdf9'
         '05e37d0cd7670fe10502b56864b93c41'
         'bef1f3ba7b87f467316de0ae99b40acf'
         '3be6a6ddf93b89e90cc127268721845e'
         'fe20decabf6b7d94cf2ecb4d15a07ba7'
         '50dca48291316e4c0a7e918f08d5e3f5'
         '13241a7e7cad481778e0715dabdec135')

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

  # add upstream patch
  git apply --whitespace=nowarn ../patch-${_rcver}-rc${_rcrel}

  # RCN patch
  git apply ../patch-${_rcver}-rc${_rcrel}-${_rcnrel}.diff

  # ALARM patches
  git apply ../0001-ARM-atags-add-support-for-Marvell-s-u-boot.patch
  git apply ../0002-ARM-atags-fdt-retrieve-MAC-addresses-from-Marvell-bo.patch
  git apply ../0003-SMILE-Plug-device-tree-file.patch
  git apply ../0004-fix-mvsdio-eMMC-timing.patch
  git apply ../0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch
  git apply ../0006-ARM-TLV320AIC23-SoC-Audio-Codec-Fix-errors-reported-.patch
  git apply ../0007-set-default-cubietruck-led-triggers.patch
  git apply ../0008-USB-armory-support.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!
  make ${MAKEFLAGS} zImage modules dtbs
}

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

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

  KARCH=arm

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

  mkdir -p "${pkgdir}"/{lib/modules,lib/firmware,boot/dtbs}
  make INSTALL_MOD_PATH="${pkgdir}" modules_install
  cp arch/$KARCH/boot/zImage "${pkgdir}/boot/zImage"
  cp arch/$KARCH/boot/dts/*.dtb "${pkgdir}/boot/dtbs"

  # 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"

  # remove build and source links
  rm -f "${pkgdir}"/lib/modules/${_kernver}/{source,build}
  # remove the firmware
  rm -rf "${pkgdir}/lib/firmware"
  # gzip -9 all modules to save 100MB of space
  find "${pkgdir}" -name '*.ko' |xargs -P 2 -n 1 gzip -9
  # 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"
}

_package-headers() {
  pkgdesc="Header files and scripts for building modules for linux kernel - ${_desc}"
  provides=("linux-headers=${pkgver}")
  conflicts=('linux-headers')
  replaces=('linux-mvebu-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 config crypto drm generated keys linux math-emu \
    media net pcmcia scsi 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/
  mkdir -p ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/mach-omap2
  cp -a arch/$KARCH/mach-omap2/include ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/mach-omap2/
  mkdir -p ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/mach-mvebu
  cp -a arch/$KARCH/mach-mvebu/include ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/mach-mvebu/
  mkdir -p ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/plat-omap
  cp -a arch/$KARCH/plat-omap/include ${pkgdir}/usr/lib/modules/${_kernver}/build/arch/$KARCH/plat-omap/

  # 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,arm26,arm64,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}
}

_package-smileplug() {
  pkgdesc="The Linux Kernel - ${_desc} - Marvell SMILE Plug"
  depends=('linux-armv7-rc')
  provides=('linux-armv7-rc-uimage')
  conflicts=('linux-armv7-rc-uimage')

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

  mkdir -p "${pkgdir}/boot" 
  cat arch/$KARCH/boot/zImage arch/$KARCH/boot/dts/armada-370-smileplug.dtb > myimage
  mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -n "${pkgname}" -d myimage "${pkgdir}/boot/uImage"
}

_package-mirabox() {
  pkgdesc="The Linux Kernel - ${_desc} - Globalscale Mirabox"
  depends=('linux-armv7-rc')
  provides=('linux-armv7-rc-uimage')
  conflicts=('linux-armv7-rc-uimage')

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

  mkdir -p "${pkgdir}/boot"
  cat arch/$KARCH/boot/zImage arch/$KARCH/boot/dts/armada-370-mirabox.dtb > myimage
  mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -n "${pkgname}" -d myimage "${pkgdir}/boot/uImage"
}

_package-ax3() {
  pkgdesc="The Linux Kernel - ${_desc} - OpenBlocks AX3-4"
  depends=('linux-armv7-rc')
  provides=('linux-armv7-rc-uimage')
  conflicts=('linux-armv7-rc-uimage')

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

  mkdir -p "${pkgdir}/boot"
  cat arch/$KARCH/boot/zImage arch/$KARCH/boot/dts/armada-xp-openblocks-ax3-4.dtb > myimage
  mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -n "${pkgname}" -d myimage "${pkgdir}/boot/uImage"
}

_package-d3plug() {
  pkgdesc="The Linux Kernel - ${_desc} - Globalscale D3Plug"
  depends=('linux-armv7-rc')
  provides=('linux-armv7-rc-uimage')
  conflicts=('linux-armv7-rc-uimage')

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

  mkdir -p "${pkgdir}/boot"
  cat arch/$KARCH/boot/zImage arch/$KARCH/boot/dts/dove-d3plug.dtb > myimage
  mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -n "${pkgname}" -d myimage "${pkgdir}/boot/uImage"
}

pkgname=("${pkgbase}" "${pkgbase}-headers" "${pkgbase}-smileplug" "${pkgbase}-mirabox" "${pkgbase}-ax3" "${pkgbase}-d3plug")
for _p in ${pkgname[@]}; do
  eval "package_${_p}() {
    _package${_p#${pkgbase}}
  }"
done