#
# Makefile for the APCIE 1532 drivers.
#

# the ADDIDATAINCLUDE variable may hold the path to the addidata-specific include directory
ifeq ($(ADDIDATAINC),)
# include directory has not been specified. suppose we are located inside the Linux kernel source tree
ADDI_CFLAGS:=-I$(TOPDIR)/include/linux/addidata/
else
# use specified location
ADDI_CFLAGS:=-I$(ADDIDATAINC)
endif

# Each configuration option enables a list of files.
obj-$(CONFIG_APCIE1532_IOCTL)	+= apcie1532.o

# list of objects that make the module
apcie1532-objs := main.o fs.o procfs.o ioctl.o vtable.o dig_inputs.o kapi_dig_inputs.o dig_outputs.o kapi_dig_outputs.o knowndev.o event.o interrupt.o counter.o timer_watchdog.o


# Kernel build flags: ccflags-y and ldflags-y were introduced in 2008 as the
# recommended approach. Some kernel 5.x versions already enforce these flags.
# For compatibility: kernels < 5 use EXTRA_CFLAGS, kernels >= 5 use ccflags-y/ldflags-y
ifeq ($(shell test $(VERSION) -lt 5; echo $$?),0)
EXTRA_CFLAGS+=$(ADDI_CFLAGS)
EXTRA_LDFLAGS+=$(ADDI_LDFLAGS)
else
ccflags-y :=$(ADDI_CFLAGS)
ldflags-y :=$(ADDI_LDFLAGS)
endif

# KERNEL 2.4 ------------------------------------------
ifeq ($(VERSION),2)
ifeq ($(PATCHLEVEL),4)

# The target object and module list name.
O_TARGET	:= driver.o

# Objects that export symbols.
export-objs	:= main.o knowndev.o

# The global Rules.make.
include $(TOPDIR)/Rules.make

# Link rules
apcie1532.o: $(apcie1532-objs)
	$(LD) -r -o $@ $(apcie1532-objs)

endif
endif
