#
#	Makefile -- Build instructions for ATMEL/AT91
#

include $(LINUX_CONFIG)

ROMFSIMG = $(IMAGEDIR)/romfs.img
ELFIMAGE = $(IMAGEDIR)/image.elf
ifdef CONFIG_NDS_NDS
IMAGE    = $(IMAGEDIR)/dslinux.nds.gba
else
IMAGE    = $(IMAGEDIR)/dslinux.ds.nds
endif
FATFS	 = supercard


ROMFS_DIRS = bin dev etc lib proc sbin $(FATFS)/linux

FS_DIRS = home usr/lib usr/bin usr/share/udhcpc var/tmp

DEVICES = \
	tty,c,5,0      console,c,5,1      cua0,c,5,64      cua1,c,5,65  \
	\
	mem,c,1,1      kmem,c,1,2         null,c,1,3       ram0,b,1,0 \
	ram1,b,1,1 	   hda,b,3,0          hda1,b,3,1 \
	hda2,b,3,2     hda3,b,3,3         hda4,b,3,4 \
	\
	ptyp0,c,2,0    ptyp1,c,2,1        ptyp2,c,2,2      ptyp3,c,2,3 \
	ptyp4,c,2,4    ptyp5,c,2,5        ptyp6,c,2,6      ptyp7,c,2,7 \
	ptyp8,c,2,8    ptyp9,c,2,9        ptypa,c,2,10     ptypb,c,2,11 \
	ptypc,c,2,12   ptypd,c,2,13       ptype,c,2,14     ptypf,c,2,15 \
	\
	dsp,c,14,3\
	\
	fb0,c,29,0\
	\
	rom0,b,31,0    rom1,b,31,1        rom2,b,31,2      rom3,b,31,3 \
	rom4,b,31,4    rom5,b,31,5        rom6,b,31,6      rom7,b,31,7 \
	\
	mtd0,c,90,0    firmware,c,90,2 \
	\
	tty0,c,4,0     tty1,c,4,1         tty2,c,4,2       tty3,c,4,3 \
	tty4,c,4,4     tty5,c,4,5         tty6,c,4,6       tty7,c,4,7 \
	\
	ttyp0,c,3,0    ttyp1,c,3,1        ttyp2,c,3,2      ttyp3,c,3,3 \
	ttyp4,c,3,4    ttyp5,c,3,5        ttyp6,c,3,6      ttyp7,c,3,7 \
	ttyp8,c,3,8    ttyp9,c,3,9        ttypa,c,3,10     ttypb,c,3,11 \
	ttypc,c,3,12   ttypd,c,3,13       ttype,c,3,14     ttypf,c,3,15 \
	\
	zero,c,1,5     random,c,1,8       urandom,c,1,9


clean:

romfs:
	-rm -r $(ROMFSDIR)
	[ -d $(ROMFSDIR)/$$i ] || mkdir -p $(ROMFSDIR)
	for i in $(ROMFS_DIRS); do \
		[ -d $(ROMFSDIR)/$$i ] || mkdir -p $(ROMFSDIR)/$$i; \
	done
	for i in $(DEVICES); do \
		touch $(ROMFSDIR)/dev/@$$i; \
	done
	# these permissions are needed for openpty and family to work
	# on non-ptmx ptys
	chmod 620 $(ROMFSDIR)/dev/@[pt]ty[pqrsPQRS][0-9a-f],*
	for i in $(FS_DIRS); do \
		[ -d $(ROMFSDIR)/$(FATFS)/linux/$$i ] || mkdir -p $(ROMFSDIR)/$(FATFS)/linux/$$i; \
	done
	$(ROMFSINST) -s $(FATFS)/linux/var /var
	$(ROMFSINST) -s $(FATFS)/linux/usr /usr
	$(ROMFSINST) -s $(FATFS)/linux/home /home
	$(ROMFSINST) -s /var/tmp /tmp
	$(ROMFSINST) -s /usr/share/udhcpc/resolv.conf /etc/resolv.conf
	$(ROMFSINST) /etc/rc
	$(ROMFSINST) /etc/inittab
	$(ROMFSINST) /etc/motd
	$(ROMFSINST) /etc/issue
	$(ROMFSINST) /etc/passwd
	$(ROMFSINST) /usr/share/udhcpc/default.script
	echo "$(VERSIONSTR) -- " `date` > $(ROMFSDIR)/etc/version

image:
	[ -d $(IMAGEDIR) ] || mkdir -p $(IMAGEDIR)
	[ -d $(IMAGEDIR)/linux ] || mkdir -p $(IMAGEDIR)/linux
	$(CROSS_COMPILE)flthdr -z $(ROMFSDIR)/bin/*
	-rm -r $(IMAGEDIR)/linux
	mv $(ROMFSDIR)/$(FATFS)/linux $(IMAGEDIR)
	genromfs -v -V "ROMdisk" -f $(ROMFSIMG) -d $(ROMFSDIR)
	if [ "$(CONFIG_NDS_NDS)" = "y" ]; then \
		BSS=`$(CROSS_COMPILE)objdump --headers $(ROOTDIR)/$(LINUXDIR)/linux | \
		grep .bss` ; \
		BSSADDR=`set -- $${BSS} ; echo 0x$${4}` ; \
		BSSSIZE=`set -- $${BSS} ; echo 0x$${3}` ; \
		ADDR=`echo $${BSSADDR} $${BSSSIZE} | \
		perl -ane 'printf "0x%x\n",hex($$F[0]) + hex($$F[1])' ` ; \
		echo "BSS=$${BSSADDR},$${BSSSIZE} ADDR=$${ADDR}" ; \
		$(CROSS_COMPILE)objcopy --add-section=.romfs=$(ROMFSIMG) \
		--adjust-section-vma=.romfs=$${ADDR} --no-adjust-warnings \
		--set-section-flags=.romfs=alloc,load,data   \
		$(ROOTDIR)/$(LINUXDIR)/linux $(ELFIMAGE) 2> /dev/null ; \
		$(CROSS_COMPILE)objcopy -O binary $(ELFIMAGE) $(IMAGEDIR)/arm9.bin ; \
		ndstool -c $(IMAGEDIR)/dslinux.nds -9 $(IMAGEDIR)/arm9.bin \
			-r9 0x02000000 -e9 0x02000000  \
			-7 $(ROOTDIR)/$(LINUXDIR)/arch/armnommu/mach-nds/arm7.bin \
		       	-r7 0x03800000 -e7 0x03800000  \
			-b tux.bmp "DSLinux;Port of Linux;to the DS!" ; \
		( cd $(IMAGEDIR); tar -cvzf dslinux-$(FATFS)cf.tgz linux dslinux.nds ) \
	else \
	        $(CROSS_COMPILE)objcopy -O binary \
                        --remove-section=.text --remove-section=.init \
                        $(ROOTDIR)/$(LINUXDIR)/linux $(IMAGEDIR)/linux.data ; \
		$(CROSS_COMPILE)objcopy -O binary \
                        -j .init -j .text \
                        $(ROOTDIR)/$(LINUXDIR)/linux $(IMAGEDIR)/linux.text ; \
		cat $(IMAGEDIR)/linux.text $(IMAGEDIR)/linux.data $(ROMFSIMG) > $(IMAGE) ; \
		( cd $(IMAGEDIR); tar -cvzf dslinux-$(FATFS)cf.tgz linux dslinux.ds.nds ) \
	fi