# $Id: PKGBUILD,v 1.224 2007/05/06 18:54:10 tpowa Exp $
# Maintainer: judd <jvinet@zeroflux.org>
pkgname=kernel26
_basekernel=2.6.21
pkgver=2.6.21.1
pkgrel=8
pkgdesc="The Linux Kernel and modules"
arch=(i686 x86_64)
url="http://www.kernel.org"
backup=('boot/kconfig26' etc/mkinitcpio.d/${pkgname}.preset)
depends=('module-init-tools' 'mkinitcpio>=0.5.13')
# pwc, ieee80211 and hostap-driver26 modules are included in kernel26 now
# nforce package support was abandoned by nvidia, kernel modules should cover everything now.
# kernel24 support is dropped since glibc24
replaces=('kernel24' 'kernel24-scsi' 'kernel26-scsi'
          'alsa-driver' 'ieee80211' 'hostap-driver26'
          'pwc' 'nforce' 'squashfs' 'unionfs' )
install=kernel26.install

# common sources and md5sums
_common_source=(ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-$_basekernel.tar.bz2
    ftp://ftp.kernel.org/pub/linux/kernel/v2.6/patch-$pkgver.bz2
    logo_linux_clut224.ppm
    logo_linux_mono.pbm
    logo_linux_vga16.ppm
    acpi-dsdt-initrd-v0.8.4-2.6.21.patch
    toshiba-bluetooth.patch
    toshiba-acpi.patch
    usb-storage-unusual-devs.patch
    mactel-linux-2.6.21.patch
    coretemp.patch
    atkbd.patch
    alsa-20070506.patch.bz2
    alsa-include.patch.bz2
    patch_realtek.patch
    sis900.patch
    zd1211.patch
    acpi-buggy-bios.patch
    bluetooth-alsa.patch
    revert_sky2.patch
    http://heanet.dl.sourceforge.net/sourceforge/squashfs/squashfs3.2-r2.tar.gz
    ftp://ftp.fsl.cs.sunysb.edu/pub/unionfs/unionfs-2.x/linux-2.6.21-u2.diff.gz)
_common_md5sums=('1b515f588078dfa7f4bab2634bd17e80' 'c4c368f173af267a564948065ffc1689'\
         '5a62bcc7e96601052c7405459b483826' 'ed6b42fea2f5d27f7eb920746ccc1ebb'\
         'a995ec849ea43d3c89d607bbdd1e7d09' '493137566bc397ec762c86e64bd96849'\
         '695d8578a0334fa9bb140917561f03d4' 'f6978eca251dfca21ffa46f1169583a4'\
         '3ed791c3af3099489faf0d22cbcc55a8' '55e6fb0b0778db4ffea45c75565e1f28'\
         '197453581bf03bd8f6cb50a4cbcc8685' '3f72c692c7c9cf596680bc3ce0cb84ec'\
         '9db585806016b338a11886b2cbba84de' '5e00933ee60f7e1af44225e785de6820'\
         '00bc768e40b48bbbcea4466289af29fc' 'f0c3200fde468a1ed37b363f0fb60c9c'\
         'bec19952e53d01fc5f4e6f48ce3fa856' 'bbc730a590d4e09b3d937b257e5a4bfe'\
         'b68adb3c52eeff2d441ca41c380382b7' '34980076fbd8e745d9345b42f6457fa4'\
         'bf360b92eba9e6d5610196ce2e02fcd1' '4964894a3f406d600226b62de570605b')

# define subpackages here
subpkgs=('kernel26suspend2')

# main package
source=(${_common_source[*]}
    config
    config.x86_64
    kernel26.preset
    mkinitcpio-$pkgname.conf)
md5sums=(${_common_md5sums[*]}\
         'dd0ab2770aa77868a0ca73822daecdfe' '89af4e2eceaf6e0c2d01567438fcc961'\
         '2365779022389399c5c705004cdbc583' '36858bd6a0bca63d2aa901b2e42d4a05')

# suspend2 subpackage
pkgname_suspend2='kernel26suspend2'
backup_suspend2=('etc/mkinitcpio.d/kernel26suspend2-fallback.conf' \
        'etc/mkinitcpio.d/kernel26suspend2.preset')
depends_suspend2=('module-init-tools' 'mkinitcpio>=0.5.13')
install_suspend2=$install
source_suspend2=(${_common_source[*]}
    config_suspend2
    config_suspend2.x86_64
    kernel26suspend2.preset
    mkinitcpio-kernel26suspend2.conf
    http://www.suspend2.net/downloads/all/suspend2-2.2.9.15-for-2.6.21.patch.bz2
    http://www.tud.ttu.ee/~t030562/nobile/include/cpufreq-speedstep-dothan-3.patch)
md5sums_suspend2(${_common_md5sums[*]}\
         'f0abc87ea8f2894b08b527009cb747d2' 'e0c94fe663dca9f6ba510a0d563acc6c'\
         'e140dce8ad579f30f6f721c78209c7fe' '2f922c5d8bea6bcbb17983daa68f348f'\
         '6b487092ae4396db71d63cc9945be861' 'eb57406fe52ff1c078978ca8956e914a')

_common_build()
{
  [ "${CARCH}" = "i686" ]   && KARCH=i386
  [ "${CARCH}" = "x86_64" ] && KARCH=x86_64

  cd $_srcdir/linux-$_basekernel
  # add upstream patch from 2.6.21 series
  patch -Np1 -i ../patch-$pkgver || return 1
  # add acpi custom dsdt patch
  patch -Np1 -i ../acpi-dsdt-initrd-v0.8.4-2.6.21.patch || return 1
  # fix enabling of bluetooth on some toshiba notebooks
  patch -Np1 -i ../toshiba-bluetooth.patch || return 1
  # fix hotkeys on some toshiba notebooks
  patch -Np1 -i ../toshiba-acpi.patch || return 1
  # fix I/O errors with Teac HD-35PU devices
  patch -Np1 -i ../usb-storage-unusual-devs.patch || return 1
  # add mactel patch
  patch -Np1 -i ../mactel-linux-2.6.21.patch || return 1
  # add coretemp and additional sensors
  patch -Np1 -i ../coretemp.patch || return 1
  # fix atkbd issue on some laptops
  patch -Np1 -i ../atkbd.patch || return 1
  # add latest alsa fixes ftp://ftp.suse.com/pub/projects/alsa/snapshot/driver/
  # status is 20070506!
  patch -Np1 -i ../alsa-20070506.patch || return 1
  patch -Np0 -i ../alsa-include.patch || return 1
  # fix patch_realtek for new asus and lenovo
  patch -Np1 -i ../patch_realtek.patch || return 1
  # fix sis900 oops
  patch -Np1 -i ../sis900.patch || return 1
  # fix zd1211 driver to support more cards
  patch -Np1 -i ../zd1211.patch || return 1
  # fix buggy bios acpi to get c states
  patch -Np1 -i ../acpi-buggy-bios.patch || return 1
  # revert sky2 change, it breaks some nics that actually work fine, sigh
  patch -Rp1 -i ../revert_sky2.patch || return 1
  # fix alsa bluetooth, http://bluetooth-alsa.cvs.sourceforge.net/bluetooth-alsa/plugz/patches/
  patch -Np1 -i ../bluetooth-alsa.patch || return 1
  # add sqashfs
  patch -Np1 -i ../squashfs3.2-r2/kernel-patches/linux-2.6.20/squashfs3.2-patch || return 1
  # add unionfs
  patch -Np1 -i ../linux-2.6.21-u2.diff || return 1

  # remove the extraversion from Makefile
  sed -i 's|^EXTRAVERSION = .*$|EXTRAVERSION =|g' Makefile
  # Arch logo!
  cp ../logo_linux_clut224.ppm drivers/video/logo/
  cp ../logo_linux_mono.pbm drivers/video/logo/
  cp ../logo_linux_vga16.ppm drivers/video/logo/
  if [ "$CARCH" = "x86_64" ]; then
    cat ../${_config_x86_64} >./.config
  else
    # get rid of the 'i' in i686
    carch=`echo $CARCH | sed 's|i||'`
    cat ../${_config} | sed "s|#CARCH#|$carch|g" >./.config
  fi

  # build the full kernel version to use in pathnames
  . ./.config
  _kernver="${_basekernel}${CONFIG_LOCALVERSION}"
  # load configuration
  yes "" | make config

  # build!
  make bzImage modules || return 1
  mkdir -p $_pkgdir/{lib/modules,boot}
  make INSTALL_MOD_PATH=$_pkgdir modules_install || return 1

  cp System.map $_pkgdir/boot/System.map26
  cp arch/$KARCH/boot/bzImage $_pkgdir/boot/vmlinuz26
  install -D -m644 Makefile \
    $_pkgdir/usr/src/linux-${_kernver}/Makefile
  install -D -m644 kernel/Makefile \
    $_pkgdir/usr/src/linux-${_kernver}/kernel/Makefile
  install -D -m644 .config \
    $_pkgdir/usr/src/linux-${_kernver}/.config
  install -D -m644 .config $_pkgdir/boot/kconfig26
  mkdir -p $_pkgdir/usr/src/linux-${_kernver}/include

  mkdir -p $_pkgdir/usr/src/linux-${_kernver}/arch/$KARCH/kernel
  for i in acpi asm-generic asm-$KARCH config linux math-emu media net pcmcia scsi sound video; do
    cp -a include/$i $_pkgdir/usr/src/linux-${_kernver}/include/
  done

  # copy files necessary for later builds, like nvidia and vmware
  cp Module.symvers $_pkgdir/usr/src/linux-${_kernver}
  cp -a scripts $_pkgdir/usr/src/linux-${_kernver}
  # fix permissions on scripts dir
  chmod og-w -R $_pkgdir/usr/src/linux-${_kernver}/scripts
  mkdir -p $_pkgdir/usr/src/linux-${_kernver}/.tmp_versions

  cp arch/$KARCH/Makefile $_pkgdir/usr/src/linux-${_kernver}/arch/$KARCH/
  if [ "$CARCH" = "i686" ]; then
    cp arch/$KARCH/Makefile.cpu $_pkgdir/usr/src/linux-${_kernver}/arch/$KARCH/
  fi
  cp arch/$KARCH/kernel/asm-offsets.s $_pkgdir/usr/src/linux-${_kernver}/arch/$KARCH/kernel/

  # add headers for lirc package
  mkdir -p $_pkgdir/usr/src/linux-${_kernver}/drivers/media/video
  cp drivers/media/video/*.h  $_pkgdir/usr/src/linux-${_kernver}/drivers/media/video/
  for i in bt8xx cpia2 cx25840 cx88 em28xx et61x251 pwc saa7134 sn9c102 usbvideo zc0301; do
   mkdir -p $_pkgdir/usr/src/linux-${_kernver}/drivers/media/video/$i
   cp -a drivers/media/video/$i/*.h $_pkgdir/usr/src/linux-${_kernver}/drivers/media/video/$i
  done
  # add dm headers
  mkdir -p $_pkgdir/usr/src/linux-${_kernver}/drivers/md
  cp drivers/md/*.h  $_pkgdir/usr/src/linux-${_kernver}/drivers/md
  # add inotify.h
  mkdir -p $_pkgdir/usr/src/linux-${_kernver}/include/linux
  cp include/linux/inotify.h $_pkgdir/usr/src/linux-${_kernver}/include/linux/
  # add CLUSTERIP file for iptables
  mkdir -p $_pkgdir/usr/src/linux-${_kernver}/net/ipv4/netfilter/
  cp net/ipv4/netfilter/ipt_CLUSTERIP.c $_pkgdir/usr/src/linux-${_kernver}/net/ipv4/netfilter/
  # add vmlinux
  cp vmlinux $_pkgdir/usr/src/linux-${_kernver}
  # copy in Kconfig files
  for i in `find . -name "Kconfig*"`; do 
    mkdir -p $_pkgdir/usr/src/linux-${_kernver}/`echo $i | sed 's|/Kconfig.*||'`
    cp $i $_pkgdir/usr/src/linux-${_kernver}/$i
  done
  if [ "${KARCH}" = "i386" ]; then
    mkdir ${_pkgdir}/usr/src/linux-${_kernver}/include/asm-x86_64
    cp -a include/asm-x86_64/tsc.h ${_pkgdir}/usr/src/linux-${_kernver}/include/asm-x86_64
  else
    mkdir ${_pkgdir}/usr/src/linux-${_kernver}/include/asm-i386
    cp -a include/asm-i386/tsc.h ${_pkgdir}/usr/src/linux-${_kernver}/include/asm-i386
  fi
  cd $_pkgdir/usr/src/linux-${_kernver}/include && ln -s asm-$KARCH asm
  chown -R root.root $_pkgdir/usr/src/linux-${_kernver}
  cd $_pkgdir/lib/modules/${_kernver} && \
    (rm -f source build; ln -sf ../../../usr/src/linux-${_kernver} build)

  # for binary modules make prepare
  cd $_pkgdir/lib/modules/${_kernver}/build
  make prepare

  # install fallback mkinitcpio.conf file and preset file for kernel
  install -m644 -D $_srcdir/${_pkgname}.preset $_pkgdir/etc/mkinitcpio.d/${_pkgname}.preset || return 1
  install -m644 -D $_srcdir/mkinitcpio-${_pkgname}.conf $_pkgdir/etc/mkinitcpio.d/${_pkgname}-fallback.conf || return 1

  # set correct depmod command for install
  sed -i -e "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/g" $startdir/kernel26.install
  echo -e "# DO NOT EDIT THIS FILE\nALL_kver='${_kernver}'" > ${_pkgdir}/etc/mkinitcpio.d/${_pkgname}.kver
}

build()
{
  local _pkgdir=$startdir/pkg
  local _srcdir=$startdir/src
  local _config='config'
  local _config_x86_64='config.x86_64'
  local _pkgname=$pkgname
  
  _common_build
}

# NOTE: each subpackage that has a "build_foo" will have separate "src_foo" directory
build_suspend2()
{
  local _pkgdir=$startdir/pkg_suspend2
  local _srcdir=$startdir/src_suspend2
  local _config='config_suspend2'
  local _config_x86_64='config_suspend2.x86_64'
  local _pkgname=${pkgname_suspend2}
  
  # Apply suspend2 specific patches
  cd $_srcdir/linux-${_basekernel}
  # add suspend2 support
  patch -Np1 -i ../suspend2-2.2.9.15-for-2.6.21.patch || return 1
  # Add dothan speedstep support
  patch -Np1 -i ../cpufreq-speedstep-dothan-3.patch || return
  
  _common_build
}