makefile

VIA Framebuffer driver

DEBUG	=	0

OBJS	:= 	viafbdev.o hw.o iface.o tv.o via_i2c.o vt1622.o vt1622a.o dvi.o lcd.o 
SRC	    =	viafbdev.c hw.c iface.c tv.c via_i2c.c vt1622.c vt1622a.c dvi.c lcd.c
TARGET	=	viafb.o

INSTALL_PATH:=/lib/modules/$(shell uname -r)/kernel/drivers/video

KSP :=  /lib/modules/$(shell uname -r)/build

test_dir = $(shell [ -e $(dir)/include/linux ] && echo $(dir))
KSP := $(foreach dir, $(KSP), $(test_dir))

KSRC := $(firstword $(KSP))
ifeq (,$(KSRC))
  $(error Linux kernel source not found)
endif

VERSION_FILE := $(KSRC)/include/linux/version.h
CONFIG_FILE  := $(KSRC)/include/linux/config.h

ifeq (,$(wildcard $(VERSION_FILE)))
  $(error Linux kernel source not configured - missing version.h)
endif

ifeq (,$(wildcard $(CONFIG_FILE)))
  $(error Linux kernel source not configured - missing config.h)
endif

ifneq (,$(findstring egcs-2.91.66, $(shell cat /proc/version)))
  CC := kgcc gcc cc
else
  CC := gcc cc
endif

test_cc = $(shell which $(cc) > /dev/null 2>&1 && echo $(cc))
CC := $(foreach cc, $(CC), $(test_cc))
CC := $(firstword $(CC))

CFLAGS += -Wall -DLINUX -D__KERNEL__ -DMODULE -DEXPORT_SYMTAB -O2 -pipe
CFLAGS += -I$(KSRC)/include -I. -Wstrict-prototypes -fomit-frame-pointer
CFLAGS += $(shell [ -f $(KSRC)/include/linux/modversions.h ] && \
            echo "-DMODVERSIONS -include $(KSRC)/include/linux/modversions.h")

KVER := $(shell $(CC) $(CFLAGS) -E -dM $(VERSION_FILE) | grep UTS_RELEASE | \
          awk '{ print $$3 }' | sed 's/\"//g')

KERVER2=$(shell uname -r | cut -d. -f2)

.SILENT: $(TARGET) clean

ifeq ($(TARGET), viafb.o)
	ifneq ($(KVER),$(shell uname -r))
		$(warning ***)
		$(warning *** Warning: kernel source version ($(KVER)))
		$(warning *** does not match running kernel  ($(shell uname -r)))
		$(warning *** Continuing with build,)
		$(warning *** resulting driver may not be what you want)
		$(warning ***)
	endif
endif

ifeq ($(DEBUG), 1)
	CFLAGS +=	-DRHINE_DBG
endif

#ifeq ($(TARGET), viafb.o)
#ifneq ($(SMP),$(shell uname -a | grep SMP > /dev/null 2>&1 && echo 1 || echo 0))
#  $(warning ***)
#ifeq ($(SMP),1)
#  $(warning *** Warning: kernel source configuration (SMP))
#  $(warning *** does not match running kernel (UP))
#else
#  $(warning *** Warning: kernel source configuration (UP))
#  $(warning *** does not match running kernel (SMP))
#endif
#  $(warning *** Continuing with build,)
#  $(warning *** resulting driver may not be what you want)
#  $(warning ***)
#endif
#endif

ifeq ($(SMP), 1)
  CFLAGS += -D__SMP__
endif

$(TARGET): $(filter-out $(TARGET), $(SRC:.c=.o))
	$(LD) -r $^ -o $@
	echo; echo
	echo "**************************************************"
	echo "Build options:"
	echo "   VERSION    $(KVER)"
	echo "   Viafb module was successfully compiled"
		
install:
	rm -f /etc/fb.modes
	cp viafb.modes /etc/fb.modes 
	@cp -v viafb.o $(INSTALL_PATH)/ ; \
	depmod -a

clean:
	rm -f $(TARGET) $(SRC:.c=.o) *~

-include .depend.mak