Makefile

MODNAME = esp8089

# By default, we try to compile the modules for the currently running
# kernel.  But it's the first approximation, as we will re-read the
# version from the kernel sources.
KVERS_UNAME ?= $(shell uname -r)

# KBUILD is the path to the Linux kernel build tree.  It is usually the
# same as the kernel source tree, except when the kernel was compiled in
# a separate directory.
KBUILD ?= $(shell readlink -f /lib/modules/$(KVERS_UNAME)/build)

ifeq (,$(KBUILD))
$(error Kernel build tree not found - please set KBUILD to configured kernel)
endif

KCONFIG := $(KBUILD)/.config
ifeq (,$(wildcard $(KCONFIG)))
$(error No .config found in $(KBUILD), please set KBUILD to configured kernel)
endif

ifneq (,$(wildcard $(KBUILD)/include/linux/version.h))
ifneq (,$(wildcard $(KBUILD)/include/generated/uapi/linux/version.h))
$(error Multiple copies of version.h found, please clean your build tree)
endif
endif

# Kernel Makefile doesn't always know the exact kernel version, so we
# get it from the kernel headers instead and pass it to make.
VERSION_H := $(KBUILD)/include/generated/utsrelease.h
ifeq (,$(wildcard $(VERSION_H)))
VERSION_H := $(KBUILD)/include/linux/utsrelease.h
endif
ifeq (,$(wildcard $(VERSION_H)))
VERSION_H := $(KBUILD)/include/linux/version.h
endif
ifeq (,$(wildcard $(VERSION_H)))
$(error Please run 'make modules_prepare' in $(KBUILD))
endif

KVERS := $(shell sed -ne 's/"//g;s/^\#define UTS_RELEASE //p' $(VERSION_H))

ifeq (,$(KVERS))
$(error Cannot find UTS_RELEASE in $(VERSION_H), please report)
endif

INST_DIR = /lib/modules/$(KVERS)/misc

SRC_DIR=$(shell pwd)

include $(KCONFIG)

EXTRA_CFLAGS += -DDEBUG -DSIP_DEBUG -DFAST_TX_STATUS \
    -DKERNEL_IV_WAR -DRX_SENDUP_SYNC -DDEBUG_FS \
    -DSIF_DSR_WAR -DHAS_INIT_DATA -DHAS_FW 

EXTRA_CFLAGS += -DP2P_CONCURRENT -DESP_USE_SDIO

ifdef ANDROID
EXTRA_CFLAGS += -DANDROID
endif

ifdef P2P_CONCURRENT
EXTRA_CFLAGS += -DP2P_CONCURRENT
endif

ifdef TEST_MODE
EXTRA_CFLAGS += -DTEST_MODE
endif

OBJS = esp_debug.o sdio_sif_esp.o spi_sif_esp.o esp_io.o \
    esp_file.o esp_main.o esp_sip.o esp_ext.o esp_ctrl.o \
    esp_mac80211.o esp_debug.o esp_utils.o testmode.o

all: config_check modules

MODULE := $(MODNAME).ko
obj-m := $(MODNAME).o

$(MODNAME)-objs := $(OBJS)

config_check:
	@if [ -z "$(CONFIG_WIRELESS_EXT)$(CONFIG_NET_RADIO)" ]; then \
		echo; echo; \
		echo "*** WARNING: This kernel lacks wireless extensions."; \
		echo "Wireless drivers will not work properly."; \
		echo; echo; \
	fi

modules:
	$(MAKE) -C $(KBUILD) M=$(SRC_DIR)

$(MODULE):
	$(MAKE) modules

clean:
	rm -f *.o *.ko .*.cmd *.mod.c *.symvers modules.order
	rm -rf .tmp_versions

install: config_check $(MODULE)
	@/sbin/modinfo $(MODULE) | grep -q "^vermagic: *$(KVERS) " || \
		{ echo "$(MODULE)" is not for Linux $(KVERS); exit 1; }
	mkdir -p -m 755 $(DESTDIR)$(INST_DIR)
	install -m 0644 $(MODULE) $(DESTDIR)$(INST_DIR)
ifndef DESTDIR
	-/sbin/depmod -a $(KVERS)
endif

uninstall:
	rm -f $(DESTDIR)$(INST_DIR)/$(MODULE)
ifndef DESTDIR
	-/sbin/depmod -a $(KVERS)
endif

.PHONY: all modules clean install config_check