# SPDX-License-Identifier: GPL-2.0
# Copyright(c) 1999 - 2020 Intel Corporation.

#ifndef REMOVE_COMPAT
ifneq ($(KERNELRELEASE),)
# kbuild part of makefile
#endif /* REMOVE_COMPAT */
#
# Makefile for the @SUMMARY@
#

obj-$(CONFIG_E1000E) += e1000e.o

define e1000e-y
	netdev.o
	ethtool.o
	ich8lan.o
	mac.o
	nvm.o
	phy.o
	manage.o
	80003es2lan.o
	82571.o
	param.o
endef
e1000e-y := $(strip ${e1000e-y})

#ifdef BUILD_PTP_SUPPORT
e1000e-$(CONFIG_PTP_1588_CLOCK:m=y) += ptp.o
#endif

#ifndef REMOVE_COMPAT

e1000e-y += kcompat.o

else	# ifneq($(KERNELRELEASE),)
# normal makefile

DRIVER := e1000e

ifeq (,$(wildcard common.mk))
  $(error Cannot find common.mk build rules)
else
  include common.mk
endif

# Check that kernel version is at least 2.4.17
ifeq (0,$(shell [ ${KVER_CODE} -lt $(call get_kvercode,2,4,17) ]; echo "$?"))
  $(warning *** Aborting the build.)
  $(error This driver is not supported on kernel versions older than 2.4.17)
endif

######################
# Kernel Build Macro #
######################

# customized kernelbuild function
#
# ${1} is the kernel build target
# ${2} may contain extra rules to pass to kernelbuild macro
#
# We customize the kernelbuild target in order to provide our hack to disable
# CONFIG_PTP_1588_CLOCK support should -DNO_PTP_SUPPORT be defined in the extra
# cflags given on the command line.
devkernelbuild = $(call kernelbuild,$(if $(filter -DNO_PTP_SUPPORT,${EXTRA_CFLAGS}),CONFIG_PTP_1588_CLOCK=n) ${2},${1})

###############
# Build rules #
###############

# Standard compilation, with regular output
default:
	@+$(call devkernelbuild,modules)

# Noisy output, for extra debugging
noisy:
	@+$(call devkernelbuild,modules,V=1)

# Silence any output generated
silent:
	@+$(call devkernelbuild,modules,>/dev/null)

# Enable higher warning level
checkwarnings: clean
	@+$(call devkernelbuild,modules,W=1)

# Run sparse static analyzer
sparse: clean
	@+$(call devkernelbuild,modules,C=2 CF="-D__CHECK_ENDIAN__ -Wbitwise -Wcontext")

# Run coccicheck static analyzer
ccc: clean
	@+$(call devkernelbuild,modules,coccicheck MODE=report))

# Build manfiles
manfile:
	@gzip -c ../${DRIVER}.${MANSECTION} > ${DRIVER}.${MANSECTION}.gz

# Clean the module subdirectories
clean:
	@+$(call devkernelbuild,clean)
	@-rm -rf *.${MANSECTION}.gz *.ko

# Install the modules and manpage
install: default manfile
	@echo "Copying manpages..."
	@install -D -m 644 ${DRIVER}.${MANSECTION}.gz ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz
	@echo "Installing modules..."
	@+$(call devkernelbuild,modules_install)
	@echo "Running depmod..."
	@$(call cmd_depmod)

# Target used by rpmbuild spec file
rpm: default manfile
	@install -D -m 644 ${DRIVER}.${MANSECTION}.gz ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz
	@install -D -m 644 ${DRIVER}.ko ${INSTALL_MOD_PATH}/lib/modules/${KVER}/${INSTALL_MOD_DIR}/${DRIVER}.ko

uninstall:
	rm -f ${INSTALL_MOD_PATH}/lib/modules/${KVER}/${INSTALL_MOD_DIR}/${DRIVER}.ko;
	$(call cmd_depmod)
	if [ -e ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz ] ; then \
		rm -f ${INSTALL_MOD_PATH}${MANDIR}/man${MANSECTION}/${DRIVER}.${MANSECTION}.gz ; \
	fi;

########
# Help #
########
help:
	@echo 'Cleaning targets:'
	@echo '  clean               - Clean files generated by kernel module build'
	@echo 'Build targets:'
	@echo '  default             - Build module(s) with standard verbosity'
	@echo '  noisy               - Build module(s) with V=1 verbosity -- very noisy'
	@echo '  silent              - Build module(s), squelching all output'
	@echo 'Static Analysis:'
	@echo '  checkwarnings       - Clean, then build module(s) with W=1 warnings enabled'
	@echo '  sparse              - Clean, then check module(s) using sparse'
	@echo '  ccc                 - Clean, then check module(s) using coccicheck'
	@echo 'Other targets:'
	@echo '  manfile             - Generate a gzipped manpage'
	@echo '  install             - Build then install the module(s) and manpage'
	@echo '  uninstall           - Uninstall the module(s) and manpage'
	@echo '  help                - Display this help message'
	@echo 'Variables:'
	@echo '  LINUX_VERSION       - Debug tool to force kernel LINUX_VERSION_CODE. Use at your own risk.'
	@echo '  W=N                 - Kernel variable for setting warning levels'
	@echo '  V=N                 - Kernel variable for setting output verbosity'
	@echo '  INSTALL_MOD_PATH    - Add prefix for the module and manpage installation path'
	@echo '  INSTALL_MOD_DIR     - Use module directory other than updates/drivers/net/ethernet/intel/${DRIVER}'
	@echo ' Other variables may be available for tuning make process, see'
	@echo ' Kernel Kbuild documentation for more information'

.PHONY: default noisy clean manfile silent sparse ccc install uninstall help

endif	# ifneq($(KERNELRELEASE),)
#endif /* REMOVE_COMPAT */