# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-dialup/bewan-adsl/bewan-adsl-0.9.3-r2.ebuild,v 1.9 2007/06/26 02:22:12 mr_bones_ Exp $

inherit eutils linux-mod

DESCRIPTION="Bewan ADSL PCI&USB st driver"
SRC_URI="http://www.bewan.com/bewan/drivers/A1012-A1006-A904-A888-A983-${PV}.tgz
	mirror://gentoo/${P}-patches-20061220.tar.gz"
HOMEPAGE="http://www.bewan.com/"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="x86"
IUSE="usb pcitimer slowpcibridge kt400"

DEPEND="virtual/linux-sources"
RDEPEND=""

S="${WORKDIR}/unicorn"

PCI_S="${S}/unicorn_pci"
USB_S="${S}/unicorn_usb"
BUILD_TARGETS="modules"
CONFIG_CHECK="ATM"
ATM_ERROR="This driver requires you to build your kernel with support for Asynchronous Transfer Mode (ATM)"

pkg_setup() {
	if kernel_is ge 2 6 20 ; then
		eerror "This driver is not compatible with kernel versions >= 2.6.20 and it cannot be fixed"
		eerror "by anyone else than Bewan (see Gentoo bug #174013)."
		eerror "As a Bewan customer, you should ask them to fix the problem."

		die "Incompatible kernel version."
	fi

	MODULE_NAMES="unicorn_pci_atm(extra:${PCI_S}) unicorn_pci_eth(extra:${PCI_S})"
	use usb && MODULE_NAMES="${MODULE_NAMES} unicorn_usb_atm(extra:${USB_S}) unicorn_usb_eth(extra:${USB_S})"

	linux-mod_pkg_setup
	BUILD_PARAMS="KERNEL_SOURCES=${KV_DIR} KVERS=${KV_FULL}"
}

src_unpack() {
	unpack ${A}

	cd "${S}"
	# Fix "unresolved symbol set_cpus_allowed" on SMP kernels (#122103)
	# Upstream consider actual version to be thread safe
	epatch "${WORKDIR}/patches/${P}-smp.patch"

	local f
	for f in msw/*.cpp amu/*.cpp ; do
		mv ${f} ${f%pp}
	done
	epatch "${WORKDIR}/patches/${P}-kernel-changes.patch"
	epatch "${WORKDIR}/patches/${P}-no-strip.patch"

	# Declare desired COPTIONS in the Makefile for the PCI module
	use kt400 && sed -i 's/^\(COPTIONS *= *\)/\1 -DKT400/g' "${PCI_S}/Makefile"
	use pcitimer && sed -i 's/^\(COPTIONS *= *\)/\1 -DUSE_HW_TIMER/g' "${PCI_S}/Makefile"
	use slowpcibridge && sed -i 's/^\(COPTIONS *= *\)/\1 -DPCI_BRIDGE_WORKAROUND/g' "${PCI_S}/Makefile"

	# Fix up broken Makefiles
	convert_to_m "${PCI_S}/Makefile"
	use usb && convert_to_m "${USB_S}/Makefile"
}

src_compile() {
	einfo "Build common library"
	cd "${S}/libm"
	emake CFLAGS="${CFLAGS}" CXXFLAGS="${CXXFLAGS}" || die

	einfo "Building tools"
	cd "${S}/tools"
	emake CFLAGS="${CFLAGS}" CXXFLAGS="${CXXFLAGS}"
	cd "${S}/unicorntest"
	emake CFLAGS="${CFLAGS}" CXXFLAGS="${CXXFLAGS}"

	linux-mod_src_compile
}

src_install() {
	linux-mod_src_install

	# Install tools
	cd "${S}"
	dodir /usr/bin
	cd "${S}/tools" && einstall DESTDIR="${D}" prefix=/usr || \
		die "Cannot install tools"
	cd "${S}/unicorntest" && einstall DESTDIR="${D}" prefix=/usr || \
		die "Cannot install unicorntest"
	doman "${S}/Documentation/unicorntest.8"

	# Install documentation
	cd "${S}"
	dodoc README
	docinto RFCs
	dodoc RFCs/*
	docinto scripts
	dodoc scripts/*
}

pkg_postinst() {
	elog "The following modules are available:"
	elog "   $(echo $MODULE_NAMES | sed s/\([^\)]*\)//g)"
	elog
	ewarn "You might need to use hotplug's blacklisting mechanism in order to prevent the"
	ewarn "loading of an incorrect module at boot time, e.g. in case unicorn_pci_eth is"
	ewarn "automatically loaded but you happen to need unicorn_pci_atm instead. List the"
	ewarn "unwanted module in /etc/hotplug/blacklist. You might also need to blacklist it"
	ewarn "in modprobe, see modprobe.conf(5)."
	ewarn
	linux-mod_pkg_postinst
}