# Iris: micro-kernel for a capability-based operating system.
# mips/nanonote/Makefile.arch: nanonote-specific parts of the build rules
# Copyright 2009 Bas Wijnen <wijnen@debian.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

load = 0x80000000

ARCH_CXXFLAGS = -DNUM_THREADS=6
ARCH_CPPFLAGS = -I. -Imips -Imips/nanonote -Wa,-mips32 -DNANONOTE #-DUSE_SERIAL
CROSS = mipsel-linux-gnu-
OBJDUMP = $(CROSS)objdump
junk = mdebug.abi32 reginfo comment pdr
OBJCOPYFLAGS = $(addprefix --remove-section=.,$(junk))
LDFLAGS = --omagic -Ttext $(load)

arch_iris_sources = mips/interrupts.cc mips/arch.cc
boot_sources = mips/init.cc mips/nanonote/board.cc
arch_headers = mips/arch.hh mips/nanonote/jz4740.hh mips/nanonote/board.hh
boot_threads = init udc nanonote-gpio buzzer metronome lcd

test: iris.raw mips/nanonote/server/usb-server mips/nanonote/sdram-setup.raw
	echo "reboot 0xa$(shell /bin/sh -c '$(OBJDUMP) -t iris.elf | grep __start$$ | cut -b2-8')" | nc localhost 5050
.PHONY: test

mips/nanonote/server/usb-server: mips/nanonote/server/usb-server.ccp mips/nanonote/server/Makefile.am mips/nanonote/server/configure.ac
	$(MAKE) -C mips/nanonote/server
	echo "shutdown" | nc localhost 5050
	sleep 1

%.elf: %.o
	$(LD) $(LDFLAGS) -o $@ $<

%.raw: %.elf
	$(OBJCOPY) -S $(OBJCOPYFLAGS) -Obinary $< $@

nanonote-boot: mips/nanonote/nanonote-boot.cc mips/nanonote/sdram-setup.raw
	g++ `pkg-config --cflags --libs shevek` $< -o $@ -D'STAGE1="$<"' -lusb

mips/nanonote/sdram-setup.elf: mips/nanonote/sdram-setup.ld
mips/nanonote/sdram-setup.elf: LDFLAGS = --omagic -T mips/nanonote/sdram-setup.ld
mips/nanonote/threadlist.o: $(addsuffix .elf,$(boot_threads))
mips/boot.o: TARGET_FLAGS = -DMEMORY_SIZE="32 << 20"
mips/init.o: TARGET_FLAGS = -I/usr/include
$(addsuffix .elf,$(boot_threads)): TARGET_FLAGS = -I.
$(addsuffix .elf,$(boot_threads)): LDFLAGS = -EL
$(addprefix boot-programs/,$(addsuffix .cc,$(boot_threads))): devices.hh keys.hh
lcd.elf: boot-programs/charset.data

boot-programs/charset.data: boot-programs/charset
	$< > $@

%.o:%.S Makefile Makefile.arch mips/arch.hh
	$(CC) $(CPPFLAGS) $(TARGET_FLAGS) -DKERNEL_STACK_SIZE=0x2000 -c $< -o $@

# entry.o must be the first file.  threadlist.o must be the first of the init objects (which can be freed after loading).
iris.elf: mips/entry.o $(subst .cc,.o,$(iris_sources)) mips/nanonote/threadlist.o mips/boot.o $(subst .cc,.o,$(boot_sources))
	$(LD) $(LDFLAGS) $^ -o $@

server:
	while mips/nanonote/server/usb-server ; do : ; done

ARCH_CLEAN_FILES = $(boot_sources) $(addsuffix .elf,$(boot_threads)) $(arch_headers) devices.hh keys.hh mips/*.o mips/nanonote/*.o boot-programs/charset.data iris.elf iris.raw mips/nanonote/sdram-setup.elf mips/nanonote/sdram-setup.raw

.PRECIOUS: mips/arch.hh mips/nanonote/jz4740.hh mips/nanonote/board.hh 
.PHONY: server