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SECTION = "kernel"
DESCRIPTION = "handhelds.org Linux kernel 2.6 for PocketPCs and other consumer handheld devices."
LICENSE = "GPL"

COMPATIBLE_HOST = "arm.*-linux"
COMPATIBLE_MACHINE ?= "(asus620|asus730|aximx50|aximx50v|eseries|h1910|h2200|h3600|h3800|h3900|h4000|h5000|htcalpine|htcapache|htcblueangel|htchermes|htchimalaya|htcsable|htcuniversal|htcwallaby|hx4700|ghi270|looxc550|jornada56x|magician|rx1950|rx3000)"

# SRC_URI *must* be overriden in includer, but this is a good reference
SRC_URI ?= "${HANDHELDS_CVS};module=linux/kernel26;tag=${@'K' + bb.data.getVar('PV',d,1).replace('.', '-')} \
           file://24-hostap_cs_id.diff;patch=1 \
           file://hrw-pcmcia-ids-r2.patch;patch=1 \
	   file://defconfig"

S = "${WORKDIR}/kernel26"

inherit kernel


K_MAJOR ?= "${@bb.data.getVar('PV',d,1).split('-')[0].split('.')[0]}"
K_MINOR ?= "${@bb.data.getVar('PV',d,1).split('-')[0].split('.')[1]}"
K_MICRO ?= "${@bb.data.getVar('PV',d,1).split('-')[0].split('.')[2]}"
HHV     ?= "${@bb.data.getVar('PV',d,1).split('-')[1].split('hh')[-1]}"

KERNEL_PRIORITY = "${@'%d' % (int(bb.data.getVar('K_MAJOR',d,1)) * 100000000 + int(bb.data.getVar('K_MINOR',d,1)) * 1000000 + int(bb.data.getVar('K_MICRO',d,1)) * 10000 + float(bb.data.getVar('HHV',d,1)))}"

do_configure() {

	if [ `grep EXTRAVERSION Makefile | grep hh | awk '{print $3}' | sed s/-hh//` != ${HHV} ]; then
		die "-hh version mismatch"
	fi

	rm -f ${S}/.config

	if [ ! -e ${WORKDIR}/defconfig ]; then
		die "No default configuration for ${MACHINE} available."
	fi

	if [ -n "${KERNEL_INITRAMFS_PATH}" -a "${ANGSTROM_MODE}" = "glibc" ]; then
		if [ ! -f ${KERNEL_INITRAMFS_PATH} ]; then
		    echo "${KERNEL_INITRAMFS_PATH} does not exist, you may need to bitbake it separately"
		    exit 1
		fi

		# Kernel expects non-compressed cpio
		gzip -d -c ${KERNEL_INITRAMFS_PATH} >${WORKDIR}/initramfs.cpio
		echo "CONFIG_INITRAMFS_SOURCE=\"${WORKDIR}/initramfs.cpio\"" >> ${S}/.config
	fi

	if [ "${TARGET_OS}" == "linux-gnueabi" -o  "${TARGET_OS}" == "linux-uclibcgnueabi" ]; then
		echo "CONFIG_AEABI=y"                   >> ${S}/.config
		echo "CONFIG_OABI_COMPAT=y"             >> ${S}/.config
	else
		echo "# CONFIG_AEABI is not set"        >> ${S}/.config
		echo "# CONFIG_OABI_COMPAT is not set"  >> ${S}/.config
	fi

	sed 	-e '/CONFIG_AEABI/d' \
		-e '/CONFIG_OABI_COMPAT=/d' \
		-e '/CONFIG_INITRAMFS_SOURCE=/d' \
		'${WORKDIR}/defconfig' >>'${S}/.config'

	yes '' | oe_runmake oldconfig

}

do_deploy_append() {
	#reflash.ctl is required to reflash using bootldr
	# format:
	# name file md5sumfile destination
	echo "${MACHINE}-kernel-${DATETIME} ${KERNEL_IMAGE_BASE_NAME} - kernel" >> ${DEPLOY_DIR_IMAGE}/reflash.ctl
	gen_haret_startup

	if [ -n "${KERNEL_INITRAMFS_PATH}" -a "${ANGSTROM_MODE}" == "glibc" ]; then
		cp ${DEPLOY_DIR_IMAGE}/${KERNEL_FILENAME} ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-$(basename ${KERNEL_INITRAMFS_PATH} | awk -F. '{print $1}')-${PV}-${PR}-${MACHINE}.bin 
	fi
}   
   

gen_haret_startup() {
	cat >${DEPLOY_DIR_IMAGE}/startup.txt <<EOF 
# This is startup file for HaRET, Linux bootloader for WinCE
# http://handhelds.org/wiki/HaRET

set kernel "${KERNEL_IMAGE_BASE_NAME}"

# Boot choices. Uncomment 'set' statements in exactly one section

## Choice 1 - Boot from SD/MMC card
# Have 2 partition on a card:
# 1st - FAT with HaRET executable, this file and zImage above
# 2nd - EXT2 with rootfs tarball extracted
set cmdline "root=/dev/mmcblk0p2 rootdelay=10 console=ttyS0,115200n8 console=tty0"

## Choice 2 - Boot from CF card, setup like above
#set cmdline "root=/dev/hda2 rootdelay=10 console=ttyS0,115200n8 console=tty0"

## Choice 3 - Boot kernel with builtin interactive bootloader (initramfs-bootmenu-image)
# rootdelay is a wait before scanning for the available partitions
# if root= is also specified, interactive selection will be skipped and
# direct boot will happen.
#set cmdline "rootdelay=3 console=ttyS0,115200n8 console=tty0"

## Choice 4 - Boot rootfs image as initramfs (works only for smaller images)
# have a cpio.gz file below together with zImage, no EXT2 partition required
#set initrd "<image>.rootfs.cpio.gz"
#set cmdline "rdinit=/sbin/init console=ttyS0,115200n8 console=tty0"

## Choice 5 - Boot via NFS over USB networking (must be kernel-builtin
# or initramfs-*-image works too)
# 192.168.x.x - Server address (the other side)
# 192.168.y.y - Handheld's address
#set cmdline "root=/dev/nfs nfsroot=192.168.x.x:<nfs_path> ip=192.168.y.y:192.168.x.x:192.168.x.x:255.255.255.0:pda:usb0 console=ttyS0,115200n8 console=tty0"

## Choice 6 - Boot from MTD partition, for devices with lots of flash
#  to have both WinCE and Linux there. Note the value of root param,
#  that's how it should be, not "/dev/mtdblockN".
#set cmdline "root=mtdN console=ttyS0,115200n8 console=tty0"

bootlinux
EOF
}