## Xilinx ISE Makefile
##
## To the extent possible under law, the author(s) have dedicated all copyright
## and related and neighboring rights to this software to the public domain
## worldwide. This software is distributed without any warranty.

include project.cfg

ifndef XILINX
    $(error XILINX must be defined)
endif

ifndef PROJECT
    $(error PROJECT must be defined)
endif

ifndef TARGET_PART
    $(error TARGET_PART must be defined)
endif

TOPLEVEL        ?= $(PROJECT)
CONSTRAINTS     ?= $(PROJECT).ucf
BITFILE         ?= build/$(PROJECT).bit

COMMON_OPTS     ?= -intstyle xflow
XST_OPTS        ?=
NGDBUILD_OPTS   ?=
MAP_OPTS        ?=
PAR_OPTS        ?=
BITGEN_OPTS     ?=

PROGRAMMER      ?= none

IMPACT_OPTS     ?= -batch impact.cmd

DJTG_EXE        ?= djtgcfg
DJTG_DEVICE     ?= DJTG_DEVICE-NOT-SET
DJTG_INDEX      ?= 0

XC3SPROG_EXE    ?= xc3sprog
XC3SPROG_CABLE  ?= -c none
XC3SPROG_OPTS   ?=

###########################################################################

RUN = @echo -ne "\n\n\e[1;33m======== $(1) ========\e[m\n\n"; \
	cd build && $(XILINX)/$(1)

default: $(BITFILE)

clean:
	rm -rf build

build/$(PROJECT).prj: project.cfg
	@echo "Updating $@"
	@mkdir -p build
	@rm -f $@
	@$(foreach file,$(VSOURCE),echo "verilog work \"../$(file)\"" >> $@;)
	@$(foreach file,$(VHDSOURCE),echo "vhdl work \"../$(file)\"" >> $@;)

build/$(PROJECT).scr: project.cfg
	@echo "Updating $@"
	@mkdir -p build
	@rm -f $@
	@echo "run" \
	    "-ifn $(PROJECT).prj" \
	    "-ofn $(PROJECT).ngc" \
	    "-ifmt mixed" \
	    "$(XST_OPTS)" \
	    "-top $(TOPLEVEL)" \
	    "-ofmt NGC" \
	    "-p $(TARGET_PART)" \
	    > build/$(PROJECT).scr

$(BITFILE): project.cfg $(VSOURCE) $(CONSTRAINTS) build/$(PROJECT).prj build/$(PROJECT).scr
	@mkdir -p build
	$(call RUN,xst) $(COMMON_OPTS) \
	    -ifn $(PROJECT).scr
	$(call RUN,ngdbuild) $(COMMON_OPTS) $(NGDBUILD_OPTS) \
	    -p $(TARGET_PART) -uc ../$(CONSTRAINTS) \
	    $(PROJECT).ngc $(PROJECT).ngd
	$(call RUN,map) $(COMMON_OPTS) $(MAP_OPTS) \
	    -p $(TARGET_PART) \
	    -w $(PROJECT).ngd -o $(PROJECT).map.ncd $(PROJECT).pcf
	$(call RUN,par) $(COMMON_OPTS) $(PAR_OPTS) \
	    -w $(PROJECT).map.ncd $(PROJECT).ncd $(PROJECT).pcf
	$(call RUN,bitgen) $(COMMON_OPTS) $(BITGEN_OPTS) \
	    -w $(PROJECT).ncd $(PROJECT).bit
	@echo -ne "\e[1;32m======== OK ========\e[m\n"

ifeq ($(PROGRAMMER), impact)
prog: $(BITFILE)
	$(XILINX)/impact -batch $(IMPACT_OPTS)
endif

ifeq ($(PROGRAMMER), digilent)
prog: $(BITFILE)
	$(DJTG_EXE) prog -d $(DJTG_DEVICE) -i $(DJTG_INDEX) -f $(BITFILE)
endif

ifeq ($(PROGRAMMER), xc3sprog)
prog: $(BITFILE)
	$(XC3SPROG_EXE) $(XC3SPROG_CABLE) $(XC3SPROG_OPTS) $(BITFILE)
endif

ifeq ($(PROGRAMMER), none)
prog:
	$(error PROGRAMMER must be set to use 'make prog')
endif

# vim: set filetype=make: #