PWD		= $(shell pwd)
DIR_KERNEL_SRC = $(PWD)/modules/driver
EXTRA_CFLAGS:= -I$(M)/include
EXTRA_CFLAGS+= -Wall
SUB_BUILD_DIR = $(PWD)/build
INSTALL_DIR = $(SUB_BUILD_DIR)/$(KERNEL_SRC)/$(INSTALL_MOD_DIR)
INSTALL_SCRIPT_DIR = $(SUB_BUILD_DIR)/usr/local/bin
INSTALL_SERVICE_DIR = $(SUB_BUILD_DIR)/lib/systemd/system/

KBUILD_EXTRA_SYMBOLS += $(DIR_KERNEL_SRC)/Module.symvers
ifeq "5.10.0" "$(word 1, $(sort 5.10.0 $(KERNEL_VERSION)))"
KBUILD_EXTRA_SYMBOLS += $(PWD)/../../../pddf/i2c/Module.symvers.PDDF
endif
export KBUILD_EXTRA_SYMBOLS

all:
	$(MAKE) -C $(KBUILD_OUTPUT) M=$(DIR_KERNEL_SRC) modules
	@if [ ! -d ${INSTALL_DIR} ]; then mkdir -p ${INSTALL_DIR} ;fi
	cp -r $(DIR_KERNEL_SRC)/*.ko $(INSTALL_DIR)
	@if [ ! -d ${INSTALL_SCRIPT_DIR} ]; then mkdir -p ${INSTALL_SCRIPT_DIR} ;fi
	cp -r $(PWD)/config/*  $(INSTALL_SCRIPT_DIR)
	@if [ ! -d ${INSTALL_SERVICE_DIR} ]; then mkdir -p ${INSTALL_SERVICE_DIR} ;fi
	cp  $(PWD)/systemd/*.service  $(INSTALL_SERVICE_DIR)
clean:
	rm -f ${DIR_KERNEL_SRC}/*.o ${DIR_KERNEL_SRC}/*.ko ${DIR_KERNEL_SRC}/*.mod.c ${DIR_KERNEL_SRC}/.*.cmd
	rm -f ${DIR_KERNEL_SRC}/Module.markers ${DIR_KERNEL_SRC}/Module.symvers ${DIR_KERNEL_SRC}/modules.order
	rm -rf ${DIR_KERNEL_SRC}/.tmp_versions
	rm -rf $(SUB_BUILD_DIR)