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#****************************************************************************
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# Copyright (C) 2000-2004  ARW Elektronik Germany
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#
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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# Maintainer(s): Klaus Hitschler (klaus.hitschler@gmx.de)
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#****************************************************************************
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#****************************************************************************
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#
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# Makefile - makefile for ARW Elektronik PCI to VME interfaces driver
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#
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# $Log: Makefile,v $
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# Revision 1.2  2004/08/13 19:23:26  klaus
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# conversion to kernel-version 2.6, released version 3.0
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#
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# Revision 1.1.1.2  2002/10/18 22:14:29  klaus
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# *** empty log message ***
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#
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# Revision 1.1.1.1  2002/10/09 19:36:30  klaus
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# initial import
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#
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#
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#****************************************************************************
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#****************************************************************************
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# please modify only here if your kernel path is elsewhere located
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#
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KERNEL_LOCATION =/usr/src/linux-headers-$(shell uname -r)
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EXTRA_CFLAGS := -I.
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#****************************************************************************
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# removed old kernel source path retrival for support of kernels < 2.2.18!
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# old KERNSRC = /lib/modules/$(VERSION)/build
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#
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KERNSRC := $(KERNEL_LOCATION)
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#****************************************************************************
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# whole makefile is based on availability of version.h file
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# do a forced stop if it is not available
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#
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HASVERSION_H := $(shell if test -f /usr/include/linux/version.h ; then echo yes ; else echo no; fi )
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ifeq ($(HASVERSION_H),no)
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$(error "Can't find $(KERNEL_LOCATION)/include/linux/version.h !")
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else
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#****************************************************************************
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# removed old version retrival for better cross compile support
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# old VERSION := $(shell uname -r)
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#
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VERSION := $(shell cpp -dM -I$(KERNEL_LOCATION)/include $(KERNEL_LOCATION)/include/generated/utsrelease.h \
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            | grep UTS_RELEASE | sed -e 's;[^"]*"\(.*\)";\1;g')
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#****************************************************************************
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# where the driver should be installed - change here for cross install - currently not functional
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#
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INSTALL_LOCATION = /lib/modules/$(shell uname -r)/kernel/drivers/misc/
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#****************************************************************************
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# get extracted kernel VERSION and PATCHLEVEL for comparison
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# decide to use KBUILD for kernels greater 2.6.0
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#
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KVERSION    := $(shell echo $(VERSION) | sed -e 's;\([1-9]\)\..*;\1;g' )
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KPATCHLEVEL := $(shell echo $(VERSION) | sed -e 's;[1-9]\.\([0-9]\{0,3\}\)\..*;\1;g' )
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USEKBUILD   := yes
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#****************************************************************************
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# some common switches and defines
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#
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DBG     = __NO_DEBUG__  # or __DEBUG__ to debug the driver
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#DBG     = __DEBUG__
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SRC     = .
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#****************************************************************************
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# preparation what to build or what to KBUILD
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#
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pcivme-objs :=  $(SRC)/main.o $(SRC)/askpci.o $(SRC)/plxbug.o $(SRC)/fops.o
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ifeq ($(USEKBUILD),yes) # <<<<< USEKBUILD >>>>>>
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#****************************************************************************
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# what's the target
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#
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TARGET = pcivme.ko
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obj-m := pcivme.o
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#****************************************************************************
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# add flags to standard flags
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#
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CPPFLAGS += -I$(PWD) -D$(DBG)
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#****************************************************************************
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# do it
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#
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KBUILD_CPPFLAGS +=  -D$(DBG)
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KBUILD_CPPFLAGS += -Wno-int-to-pointer-cast -Wno-pointer-to-int-cast
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all : message
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	$(MAKE) -C $(KERNSRC) M=$(PWD) V=$(VERBOSE)  $(filter-out all, $(MAKECMDGOLAS)) modules
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else # <<<<< USEKBUILD >>>>>>
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#****************************************************************************
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# additional common switches and defines
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#
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CC      = gcc
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LD      = ld
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INC     = $(KERNSRC)/include
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DEP     = .depend
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#****************************************************************************
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# what's the target
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#
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TARGET = pcivme.o
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#****************************************************************************
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# compile flags
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#
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CFLAGS = -O2 -D__KERNEL__ -DMODULE -Wall $(INCLUDE) -D$(DBG)
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#****************************************************************************
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# do it
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#
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all: message $(TARGET)
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$(TARGET)  : $(pcivme-objs)
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	$(LD) -r $^ -o $@
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#********** catch include file depencies ************************************
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ifeq ($(DEP),$(wildcard $(DEP)))
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depend:
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	makedepend -f$(DEP) -- $(CFLAGS) -- $(addsuffix .c, $(basename $(pcivme-objs))) -I$(INC)
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include $(DEP)
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else
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depend:
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	touch $(DEP)
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	makedepend -f$(DEP) -- $(CFLAGS) -- $(addsuffix .c, $(basename $(pcivme-objs))) -I$(INC)
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endif
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endif # <<<<< USEKBUILD >>>>>>
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#********** clean all for a rebuild *****************************************
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clean:
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	rm -f *~ $(TARGET) $(pcivme-objs)
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#********** clean all for a rebuild *****************************************
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fresh:
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	touch *.c
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	make all
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#********** informations during build of driver *****************************
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.PHONY : message
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message:
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	@ echo "***"
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	@ echo "*** Host machine kernel version=$(shell uname -r), Driver kernel version=$(VERSION), Path to kernel sources=$(KERNSRC), use KBUILD=$(USEKBUILD)"
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	@ echo "***"
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#********** root installation only ******************************************
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install:
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	-rmmod  pcivme
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	-cp -r pcivme.ko $(INSTALL_LOCATION)
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	./pcivme_load 1
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endif  # <<<<< HASVERSION_H >>>>>>
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# DO NOT DELETE
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