BUILD=8
VERSION=$(shell date +%Y%m%d%H%M)-$(BUILD)
CPUS=4
CURDIR=$(shell pwd)
STLINUX=/opt/STM/STLinux-2.4
TOOLPATH=$(STLINUX)/host/bin
TOOLCHAIN=$(STLINUX)/devkit/sh4
TOOLCHAIN_KERNEL=$(CURDIR)/toolchain/4.5.3-99/opt/STM/STLinux-2.4/devkit/sh4
HOST_ARCH=$(shell uname -m)

EXTRA_AXE_MODULES_DIR=firmware/initramfs/root/modules_idl4k_7108_ST40HOST_LINUX_32BITS
EXTRA_AXE_MODULES=axe_dmx.ko axe_dmxts.ko axe_fe.ko axe_fp.ko axe_i2c.ko \
                  stapi_core_stripped.ko stapi_ioctl_stripped.ko stsys_ioctl.ko

ORIG_FILES=main_axe.out

KMODULES = drivers/usb/serial/cp210x.ko \
	   drivers/usb/serial/pl2303.ko \
	   drivers/usb/serial/spcp8x5.ko \
	   drivers/usb/serial/io_ti.ko \
	   drivers/usb/serial/ti_usb_3410_5052.ko \
	   drivers/usb/serial/io_edgeport.ko \
           drivers/usb/serial/ftdi_sio.ko \
	   drivers/usb/serial/oti6858.ko

MINISATIP_COMMIT=54df9348e7bd7e6075f54f1b93ec4ad36429abe0

BUSYBOX=busybox-1.23.2

DROPBEAR=dropbear-2015.67
DROPBEAR_SBIN_FILES=dropbear
DROPBEAR_BIN_FILES=dbclient dropbearconvert dropbearkey scp

ETHTOOL=ethtool-3.18

LIBTIRPC_VERSION=0.2.5
LIBTIRPC=libtirpc-$(LIBTIRPC_VERSION)

RPCBIND_VERSION=0.2.2
RPCBIND=rpcbind-$(RPCBIND_VERSION)
RPCBIND_SBIN_FILES=rpcbind rpcinfo

NFSUTILS_VERSION=1.3.2
NFSUTILS=nfs-utils-$(NFSUTILS_VERSION)
NFSUTILS_SBIN_FILES=utils/showmount/showmount \
		    utils/exportfs/exportfs \
		    utils/nfsstat/nfsstat \
		    utils/mountd/mountd \
		    utils/statd/start-statd \
		    utils/statd/sm-notify \
		    utils/statd/statd \
		    utils/nfsd/nfsd

TVHEADEND_COMMIT=master

# 10087?
OSCAM_REV=10619

define GIT_CLONE
	@mkdir -p apps/
	git clone $(1) apps/$(2)
	cd apps/$(2) && git checkout -b axe $(3)
endef

define WGET
	@mkdir -p apps/
	wget --no-verbose -O $(2) $(1)
endef

#
# all
#

.PHONY: all
all: kernel-axe-modules kernel

.PHONY: release
release: kernel-axe-modules out/idl4k.scr out/idl4k.recovery
	-ls -la out

.PHONY: dist
dist:
	-mkdir -p dist
	cp out/*.fw out/*.usb out/*.flash dist

#
# create CPIO
#

fs.cpio: kernel-modules busybox dropbear ethtool minisatip oscam tools/axehelper nfsutils
	fakeroot tools/do_min_fs.py \
	  -r "$(VERSION)" \
	  -b "bash strace" \
	  $(foreach m,$(EXTRA_AXE_MODULES), -e "$(EXTRA_AXE_MODULES_DIR)/$(m):lib/modules/axe/$(m)") \
	  $(foreach m,$(ORIG_FILES), -e "$(EXTRA_AXE_MODULES_DIR)/../$(m):lib/modules/axe/$(m)") \
	  -e "tools/i2c_mangle.ko:lib/modules/axe/i2c_mangle.ko" \
	  $(foreach m,$(KMODULES), -e "kernel/$(m):lib/modules/$(m)") \
	  -e "tools/axehelper:sbin/axehelper" \
	  -e "apps/$(BUSYBOX)/busybox:bin/busybox" \
	  $(foreach f,$(DROPBEAR_SBIN_FILES), -e "apps/$(DROPBEAR)/$(f):sbin/$(f)") \
	  $(foreach f,$(DROPBEAR_BIN_FILES), -e "apps/$(DROPBEAR)/$(f):usr/bin/$(f)") \
	  -e "apps/$(ETHTOOL)/ethtool:sbin/ethtool" \
	  $(foreach f,$(RPCBIND_SBIN_FILES), -e "apps/$(RPCBIND)/$(f):usr/sbin/$(f)") \
	  $(foreach f,$(NFSUTILS_SBIN_FILES), -e "apps/$(NFSUTILS)/$(f):usr/sbin/$(notdir $(f))") \
	  -e "apps/minisatip/minisatip:sbin/minisatip" \
	  -e "apps/minisatip/icons/lr.jpg:usr/share/minisatip/icons/lr.jpg" \
	  -e "apps/minisatip/icons/lr.png:usr/share/minisatip/icons/lr.png" \
	  -e "apps/minisatip/icons/sm.jpg:usr/share/minisatip/icons/sm.jpg" \
	  -e "apps/minisatip/icons/sm.png:usr/share/minisatip/icons/sm.png" \
	  -e "apps/oscam-svn/Distribution/oscam-1.20-unstable_svn$(OSCAM_REV)-sh4-linux:sbin/oscamd"

.PHONY: fs-list
fs-list:
	cpio -itv < kernel/rootfs-idl4k.cpio

#
# uboot
#

out/idl4k.recovery: patches/uboot-recovery.script
	$(TOOLPATH)/mkimage -T script -C none \
	  -n 'Restore original idl4k fw' \
	  -d patches/uboot-recovery.script out/idl4k.recovery

out/idl4k.scr: patches/uboot.script patches/uboot-flash.script out/satip-axe-$(VERSION).fw
	rm -f out/*.scr out/*.usb out/*.flash out/*.recovery
	sed -e 's/@VERSION@/$(VERSION)/g' \
	  < patches/uboot.script > out/uboot.script
	sed -e 's/@VERSION@/$(VERSION)/g' \
	  < patches/uboot-flash.script > out/uboot-flash.script
	$(TOOLPATH)/mkimage -T script -C none \
	  -n 'SAT>IP AXE fw v$(VERSION)' \
	  -d out/uboot.script out/satip-axe-$(VERSION).usb
	$(TOOLPATH)/mkimage -T script -C none \
	  -n 'SAT>IP AXE fw v$(VERSION)' \
	  -d out/uboot-flash.script out/satip-axe-$(VERSION).flash
	ln -sf satip-axe-$(VERSION).usb out/idl4k.scr
	rm out/uboot.script out/uboot-flash.script

out/satip-axe-$(VERSION).fw: kernel/arch/sh/boot/uImage.gz
	mkdir -p out
	rm -f out/*.fw
	cp -av kernel/arch/sh/boot/uImage.gz out/satip-axe-$(VERSION).fw

#
# kernel
#

kernel/.config: toolchain/4.5.3-99/opt/STM/STLinux-2.4/devkit/sh4/bin/sh4-linux-gcc-4.5.3
	cp patches/kernel.config ./kernel/arch/sh/configs/idl4k_defconfig
	make -C kernel -j $(CPUS) ARCH=sh CROSS_COMPILE=$(TOOLCHAIN_KERNEL)/bin/sh4-linux- idl4k_defconfig

kernel/drivers/usb/serial/cp210x.ko: toolchain/4.5.3-99/opt/STM/STLinux-2.4/devkit/sh4/bin/sh4-linux-gcc-4.5.3 kernel/.config
	make -C kernel -j $(CPUS) ARCH=sh CROSS_COMPILE=$(TOOLCHAIN_KERNEL)/bin/sh4-linux- modules

kernel/arch/sh/boot/uImage.gz: kernel/drivers/usb/serial/cp210x.ko fs.cpio
	mv fs.cpio kernel/rootfs-idl4k.cpio
	make -C kernel -j ${CPUS} PATH="$(PATH):$(TOOLPATH)" \
	                          ARCH=sh CROSS_COMPILE=$(TOOLCHAIN_KERNEL)/bin/sh4-linux- uImage.gz

tools/i2c_mangle.ko: tools/i2c_mangle.c
	make -C tools ARCH=sh CROSS_COMPILE=$(TOOLCHAIN_KERNEL)/bin/sh4-linux- all

.PHONY: kernel-modules tools/i2c_mangle.ko
kernel-modules: kernel/drivers/usb/serial/cp210x.ko

.PHONY: kernel
kernel: kernel/arch/sh/boot/uImage.gz

.PHONY: kernel-mrproper
kernel-mrproper:
	make -C kernel -j ${CPUS} ARCH=sh CROSS_COMPILE=$(TOOLCHAIN_KERNEL)/bin/sh4-linux- mrproper

define RPM_UNPACK
	@mkdir -p $(1)
	cd $(1) ; rpm2cpio ../$(2) | cpio -idv
endef

toolchain/4.5.3-99/opt/STM/STLinux-2.4/devkit/sh4/bin/sh4-linux-gcc-4.5.3:
	$(call RPM_UNPACK,toolchain/4.5.3-99,stlinux24-cross-sh4-binutils-2.24.51.0.3-76.i386.rpm)
	$(call RPM_UNPACK,toolchain/4.5.3-99,stlinux24-cross-sh4-cpp-4.5.3-99.i386.rpm)
	$(call RPM_UNPACK,toolchain/4.5.3-99,stlinux24-cross-sh4-gcc-4.5.3-99.i386.rpm)

#
# extract kernel modules from firmware
#

.PHONY: kernel-axe-modules
kernel-axe-modules: firmware/initramfs/root/modules_idl4k_7108_ST40HOST_LINUX_32BITS/axe_dmx.ko

firmware/initramfs/root/modules_idl4k_7108_ST40HOST_LINUX_32BITS/axe_dmx.ko:
	cd firmware ; ../tools/cpio-idl4k-bin.sh extract
	chmod -R u+rw firmware/initramfs

#
# syscall dump
#

tools/axehelper: tools/axehelper.c
	$(TOOLCHAIN)/bin/sh4-linux-gcc -o tools/axehelper -Wall -lrt tools/axehelper.c

tools/axehelper.$(HOST_ARCH): tools/axehelper.c
	gcc -o tools/axehelper.$(HOST_ARCH) -Wall -lrt tools/axehelper.c

tools/syscall-dump.so: tools/syscall-dump.c
	$(TOOLCHAIN)/bin/sh4-linux-gcc -o tools/syscall-dump.o -c -fPIC -Wall tools/syscall-dump.c
	$(TOOLCHAIN)/bin/sh4-linux-gcc -o tools/syscall-dump.so -shared -rdynamic tools/syscall-dump.o -ldl

tools/syscall-dump.so.$(HOST_ARCH): tools/syscall-dump.c
	gcc -o tools/syscall-dump.o.$(HOST_ARCH) -c -fPIC -Wall tools/syscall-dump.c
	gcc -o tools/syscall-dump.so.$(HOST_ARCH) -shared -rdynamic tools/syscall-dump.o.$(HOST_ARCH) -ldl

.PHONY: s2i_dump
s2i_dump: tools/syscall-dump.so
	if test -z "$(SATIP_HOST)"; then echo "Define SATIP_HOST variable"; exit 1; fi
	cd firmware/initramfs && tar cvzf ../fw.tgz --owner=root --group=root *
	scp tools/syscall-dump.so tools/s2i-dump.sh firmware/fw.tgz \
	    root@$(SATIP_HOST):/root

#
# minisatip
#

apps/minisatip/axe.h:
	$(call GIT_CLONE,https://github.com/catalinii/minisatip.git,minisatip,$(MINISATIP_COMMIT))
	cd apps/minisatip; patch -p1 < ../../patches/minisatip-axe.patch

apps/minisatip/minisatip: apps/minisatip/axe.h
	make -C apps/minisatip \
	  CC=$(TOOLCHAIN)/bin/sh4-linux-gcc \
	  CFLAGS="-O2 -DAXE=1 -DSYS_DVBT2=16 -I$(CURDIR)/kernel/include"

.PHONY: minisatip
minisatip: apps/minisatip/minisatip

.PHONY: minisatip-clean
minisatip-clean:
	rm -rf apps/minisatip

#
# busybox
#

apps/$(BUSYBOX)/Makefile:
	$(call WGET,http://busybox.net/downloads/$(BUSYBOX).tar.bz2,apps/$(BUSYBOX).tar.bz2)
	tar -C apps -xjf apps/$(BUSYBOX).tar.bz2

apps/$(BUSYBOX)/busybox: apps/$(BUSYBOX)/Makefile
	make -C apps/$(BUSYBOX) CROSS_COMPILE=$(TOOLCHAIN)/bin/sh4-linux- defconfig
	make -C apps/$(BUSYBOX) CROSS_COMPILE=$(TOOLCHAIN)/bin/sh4-linux-
	#make -C apps/$(DROPBEAR) PROGRAMS="dropbear dbclient dropbearkey dropbearconvert scp"

.PHONY: busybox
busybox: apps/$(BUSYBOX)/busybox

#
# dropbear
#

apps/$(DROPBEAR)/configure:
	$(call WGET,https://matt.ucc.asn.au/dropbear/$(DROPBEAR).tar.bz2,apps/$(DROPBEAR).tar.bz2)
	tar -C apps -xjf apps/$(DROPBEAR).tar.bz2

apps/$(DROPBEAR)/dropbear: apps/$(DROPBEAR)/configure
	cd apps/$(DROPBEAR) && \
	  CC=$(TOOLCHAIN)/bin/sh4-linux-gcc \
	./configure \
	  --host=sh4-linux \
	  --prefix=/ \
          --disable-lastlog \
          --disable-utmp \
          --disable-utmpx \
          --disable-wtmp \
          --disable-wtmpx
	sed -e 's/DEFAULT_PATH \"\/usr\/bin:\/bin\"/DEFAULT_PATH \"\/sbin:\/usr\/sbin:\/bin:\/usr\/bin:\/usr\/local\/bin\"/g' \
	  < apps/$(DROPBEAR)/options.h > apps/$(DROPBEAR)/options.h.2
	mv apps/$(DROPBEAR)/options.h.2 apps/$(DROPBEAR)/options.h
	make -C apps/$(DROPBEAR) PROGRAMS="dropbear dbclient dropbearkey dropbearconvert scp"

.PHONY: dropbear
dropbear: apps/$(DROPBEAR)/dropbear

#
# ethtool
#

apps/$(ETHTOOL)/configure:
	$(call WGET,https://www.kernel.org/pub/software/network/ethtool/$(ETHTOOL).tar.gz,apps/$(ETHTOOL).tar.gz)
	tar -C apps -xzf apps/$(ETHTOOL).tar.gz

apps/$(ETHTOOL)/ethtool: apps/$(ETHTOOL)/configure
	cd apps/$(ETHTOOL) && \
	  CC=$(TOOLCHAIN)/bin/sh4-linux-gcc \
	  CFLAGS="-O2" \
	./configure \
	  --host=sh4-linux \
	  --prefix=/
	make -C apps/$(ETHTOOL)

.PHONY: ethtool
ethtool: apps/$(ETHTOOL)/ethtool

#
# libtirpc
#

apps/$(LIBTIRPC)/configure:
	$(call WGET,http://sourceforge.net/projects/libtirpc/files/libtirpc/$(LIBTIRPC_VERSION)/$(LIBTIRPC).tar.bz2,apps/$(LIBTIRPC).tar.bz2)
	tar -C apps -xjf apps/$(LIBTIRPC).tar.bz2

apps/$(LIBTIRPC)/src/.libs/libtirpc.a: apps/$(LIBTIRPC)/configure
	cd apps/$(LIBTIRPC) && \
	  CC=$(TOOLCHAIN)/bin/sh4-linux-gcc \
	  CFLAGS="-O2" \
	./configure \
	  --host=sh4-linux \
	  --prefix=/ \
	  --disable-shared \
	  --disable-gssapi \
	  --disable-ipv6
	make -C apps/$(LIBTIRPC)

.PHONY: libtirpc
libtirpc: apps/$(LIBTIRPC)/src/.libs/libtirpc.a

#
# rpcbind
#

apps/$(RPCBIND)/configure:
	$(call WGET,http://sourceforge.net/projects/rpcbind/files/rpcbind/$(RPCBIND_VERSION)/$(RPCBIND).tar.bz2,apps/$(RPCBIND).tar.bz2)
	tar -C apps -xjf apps/$(RPCBIND).tar.bz2

apps/$(RPCBIND)/rpcbind: apps/$(LIBTIRPC)/src/.libs/libtirpc.a apps/$(RPCBIND)/configure
	cd apps/$(RPCBIND) && \
	  CC=$(TOOLCHAIN)/bin/sh4-linux-gcc \
	  CFLAGS="-O2" \
	  TIRPC_CFLAGS="-I$(PWD)/apps/$(LIBTIRPC)/tirpc" \
	  TIRPC_LIBS="-L$(PWD)/apps/$(LIBTIRPC)/src/.libs -Wl,-Bstatic -ltirpc -Wl,-Bdynamic" \
	./configure \
	  --host=sh4-linux \
	  --prefix=/ \
	  --with-systemdsystemunitdir=no
	make -C apps/$(RPCBIND)

.PHONY: rpcbind
rpcbind: apps/$(RPCBIND)/rpcbind

#
# nfs-utils
#

apps/$(NFSUTILS)/configure:
	$(call WGET,http://sourceforge.net/projects/nfs/files/nfs-utils/$(NFSUTILS_VERSION)/$(NFSUTILS).tar.bz2,apps/$(NFSUTILS).tar.bz2)
	tar -C apps -xjf apps/$(NFSUTILS).tar.bz2

apps/$(NFSUTILS)/utils/exportfs/exportfs: apps/$(RPCBIND)/rpcbind apps/$(NFSUTILS)/configure
	cd apps/$(NFSUTILS) && \
	  CC=$(TOOLCHAIN)/bin/sh4-linux-gcc \
	  CFLAGS="-O2" \
	  TIRPC_CFLAGS="-I$(PWD)/apps/$(LIBTIRPC)/tirpc" \
	  TIRPC_LIBS="-L$(PWD)/apps/$(LIBTIRPC)/src/.libs -Wl,-Bstatic -ltirpc -Wl,-Bdynamic" \
	./configure \
	  --host=sh4-linux \
	  --prefix=/ \
	  --disable-mount \
	  --disable-nfsdcltrack \
	  --disable-nfsv4 \
	  --disable-gss \
	  --disable-ipv6 \
	  --disable-uuid \
	  --without-tcp-wrappers
	make -C apps/$(NFSUTILS)

.PHONY: nfsutils
nfsutils: apps/$(NFSUTILS)/utils/exportfs/exportfs

#
# oscam
#

apps/oscam-svn/config.sh:
	cd apps && svn checkout http://www.streamboard.tv/svn/oscam/trunk oscam-svn -r $(OSCAM_REV)

apps/oscam-svn/Distribution/oscam-1.20-unstable_svn$(OSCAM_REV)-sh4-linux: apps/oscam-svn/config.sh
	make -C apps/oscam-svn CROSS_DIR=$(TOOLCHAIN)/bin/ CROSS=sh4-linux-

.PHONY: oscam
oscam: apps/oscam-svn/Distribution/oscam-1.20-unstable_svn$(OSCAM_REV)-sh4-linux

#
# tvheadend
#

apps/tvheadend/Makefile:
	$(call GIT_CLONE,https://github.com/tvheadend/tvheadend.git,tvheadend,$(TVHEADEND_COMMIT))

apps/tvheadend/build.linux/tvheadend: apps/tvheadend/Makefile
	cd apps/tvheadend && \
	  PKG_CONFIG_PATH=$(TOOLCHAIN)/target/usr/lib/pkgconfig \
	  PKG_CONFIG=$(TOOLPATH)/pkg-config \
	  ARCH=sh \
	  CC=$(TOOLCHAIN)/bin/sh4-linux-gcc \
	./configure \
	  --disable-dbus_1 \
	  --disable-imagecache \
	  --enable-bundle
	$(MAKE) -j $(CPUS) -C apps/tvheadend

.PHONY: tvheadend
tvheadend: apps/tvheadend/build.linux/tvheadend

#
# clean all
#

.PHONY: clean
clean: kernel-mrproper
	rm -rf firmware/initramfs
	rm -rf toolchain/4.5.3-99
	rm -rf tools/syscall-dump.o* tools/syscall-dump.s*