# Reference: <https://postmarketos.org/devicepkg>
# Maintainer: Federico Amedeo Izzo <federico@izzo.pro>
pkgname=device-clockworkpi-uconsole-rpi
pkgdesc="Clockwork Tech ClockworkPi uConsole with Raspberry Pi compute modules"
pkgver=7
# commit to fork of kernel with drivers maintained by ak-rex
_commit=d340a0416d34bf94591b45b50c5538aecbf5b09b
pkgrel=0
url="https://postmarketos.org"
license="MIT"
arch="aarch64"
options="!archcheck"
depends="
	linux-rpi
	postmarketos-base
	raspberrypi-bootloader
"
makedepends="
	devicepkg-dev
	clang
	dtc
	linux-rpi-dev
"
subpackages="
	$pkgname-nonfree-firmware:nonfree_firmware
	$pkgname-openrc
	$pkgname-x11
	$pkgname-akms
"
source="
	clockworkpi-linux-$_commit.tar.gz::https://github.com/ak-rex/ClockworkPi-linux/archive/$_commit.tar.gz

	deviceinfo
	modules-initfs
	usercfg.txt
	95-vchiq-permissions.rules
	xorg.conf

	driver-makefile.in
	driver-akmbuild.in
"
builddir="$srcdir"/ClockworkPi-linux-$_commit


# Location of out-of-tree drivers to be built using AKMS
# Set by looking at diff of bcm2711_defconfig in kernel fork
# where added configs can be tied to relevant files
_drivers="
	drivers/power/supply/axp20x_usb_power.c
	drivers/mfd/axp20x.c
	drivers/iio/adc/axp20x_adc.c
	drivers/iio/adc/ti-adc081c.c
	drivers/mfd/axp20x-i2c.c
	drivers/regulator/axp20x-regulator.c
	drivers/input/misc/axp20x-pek.c
	drivers/power/supply/axp20x_ac_power.c
	drivers/power/supply/axp20x_battery.c
	drivers/video/backlight/ocp8178_bl.c
	drivers/gpu/drm/panel/panel-cwd686-cm3.c
	drivers/gpu/drm/panel/panel-cwd686.c
	drivers/gpu/drm/panel/panel-cwu50-cm3.c
	drivers/gpu/drm/panel/panel-cwu50.c
"

# Location of relevant overlays to be built
_dtso="
	arch/arm/boot/dts/overlays/clockworkpi-uconsole-overlay.dts
	arch/arm/boot/dts/overlays/clockworkpi-uconsole-cm5-overlay.dts
	arch/arm/boot/dts/overlays/clockworkpi-custom-battery-overlay.dts
"
provides="device-clockworkpi-uconsole-cm4=$pkgver-r$pkgrel"

build() {
	devicepkg_build $startdir $pkgname

	local _modules=
	local _objects=
	local _file=

	# setup akms folder
	# this also generates information to complete AKMBUILD and Makefile
	mkdir -p "$builddir"/akms "$builddir"/dtso
	for driver in $_drivers; do
		_file=${driver##*\/}
		cp "$builddir"/$driver "$builddir"/akms/$_file
		_modules="$_modules ${_file/.c/.ko}"
		_objects="$_objects ${_file/.c/.o}"
	done
	sed -e "s/%%MODVER%%/$pkgver/" -e "s/%%DRIVER_MOD%%/$_modules/" "$srcdir"/driver-akmbuild.in > "$builddir"/akms/AKMBUILD
	sed "s/%%DRIVER_OBJ%%/$_objects/" "$srcdir"/driver-makefile.in > "$builddir"/akms/Makefile

	# setup dtso folder
	for dtso in $_dtso; do
		_file=${dtso##*\/}
		cp "$builddir"/$dtso "$builddir"/dtso/$_file
	done

	# generate dtbo for uconsole
	_kernel_ver=$(find /lib/modules -maxdepth 1 -mindepth 1 | grep rpi | sed 's|.*/||g')
	echo ">>> Generating dtbo against $_kernel_ver"
	for dts in "$builddir"/dtso/*.dts; do
		cpp -nostdinc -I "/usr/src/linux-headers-$_kernel_ver/include" -I arch -undef -x assembler-with-cpp $dts $dts.preprocessed
		dtc -O dtb -o ${dts/-overlay.dts/.dtbo} $dts.preprocessed
	done
}

package() {
	devicepkg_package $startdir $pkgname
	install -Dm644 "$srcdir"/usercfg.txt "$pkgdir"/boot/usercfg.txt
	install -Dm644 "$srcdir"/95-vchiq-permissions.rules \
		"$pkgdir"/usr/lib/udev/rules.d/95-vchiq-permissions.rules
	install -Dm644 "$builddir"/dtso/*dtbo -t "$pkgdir"/boot/overlays
}

# Test build of drivers against kernel
check() {
	_kernel_ver=$(find /lib/modules -maxdepth 1 -mindepth 1 | sed 's|.*/||g')
	for ver in $_kernel_ver; do
		echo ">>> Testing module build against $ver"
		cp -R "$builddir"/akms "$builddir"/akms-$ver
		(
			cd "$builddir"/akms-$ver
			make KVER=$ver
		)
	done
}

akms() {
	pkgdesc="uConsole kernel module (AKMS)"
	depends="akms linux-rpi-dev build-base"
	install_if="$pkgname=$pkgver-r$pkgrel"

	mkdir -p "$subpkgdir"/usr/src
	cp -R "$builddir"/akms "$subpkgdir"/usr/src/clockworkpi-rpi
	chmod -R u=rwX,go=rX-w "$subpkgdir"/usr/src/clockworkpi-rpi
}

nonfree_firmware() {
	pkgdesc="WiFi/Bluetooth firmware"
	depends="linux-firmware-brcm"
	mkdir "$subpkgdir"
}

x11() {
	install_if="$pkgname xorg-server"
	install -Dm644 "$srcdir"/xorg.conf \
		"$subpkgdir"/etc/X11/xorg.conf.d/10-monitor.conf
}

openrc() {
	pkgdesc="$pkgdesc (openrc)"
	depends="openrc"
	install_if="$pkgname=$pkgver-r$pkgrel openrc"
	install="$subpkgname.post-install $subpkgname.post-upgrade"

	mkdir -p "$subpkgdir"
}
sha512sums="
a47b3819274fca4a5c554923391d73f98ff0d4e7b78481e288e1ea401ef8e71287ad8845940ad63e482bb205dcad8b2331a3a08b9d838c2a8ec1ec18b8d18dc9  clockworkpi-linux-d340a0416d34bf94591b45b50c5538aecbf5b09b.tar.gz
ca5a62f611318cfdb095728c7b473aa85e30e965222ca740d6ad8fa372eba7adc8ca62edc770da19375faa228cc0c8718234f2f07ea72a2db0d77bfbc6924546  deviceinfo
d97e603ef83626ec12a2503035c8de4d3d4d548510b85b26b07382736c334ae0c420e6811612fa83795eb8aa349dae29ec9944708d57cdd04cce09db3c32de23  modules-initfs
bc2bfea04073895f02e21d9248eb3f77910e95022d65bab7d80fd12484a6523d670f81d0aae2f4e811b7ab29f8537d73d87891572c212e647c69f1e98916685b  usercfg.txt
7e5505cb07d5b4a81bd28443d508336b5c547356538f1c06f91ed93ad0d7d456d4f74f1d24df5a2e08c17e74f0a66607352ac4874e967e9a91dfec9522d2d58d  95-vchiq-permissions.rules
15cde27e41304f988009e3a1cbc4bb6a85b9d09538c727e9c22e1ec8a45d025b4be5d0064d7d7bba1988006ad291c06c8aec8bcc974f0689fbd0d187f8dc6979  xorg.conf
51a1fc5ba9336e784fe8dfb97eed8d3f51fd181a9a76c5266e227e1670aa423fdaec04b869795a2abd5afca6d472a1f107f30a0f0efd242ee16c8910773ddcc2  driver-makefile.in
d36e2b1f9187f8269d557d867ccf6d5abd5925ea34c7a5c0b97dcdc96e3b76955701946c68309240e3bb3713f7466c5756806734fab4a8c2c2d161aab7ab1b26  driver-akmbuild.in
"