common.mk

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# Feature variants of realmagichwl_kernelland.o are done using 
# export REALMAGICHWL_FEATURES=... from the shell, as a collection of:
# -DWITH_PROGRESSIVE_YUV     (displaying YUV pictures in progressive mode - requires to overclock Q4 -)
# -DWITH_8MB_AND_OVER        (support for em8485 with 8/16 MB)
# -DWITH_LOGGING=1           (logging for developers)
# -DWITH_PROC=1              (/proc/realmagichwl interface)
# -DWITH_PCI=1               (support for PCI based probing)
# -DWITH_DOLBY=1             (support for hardware AC3 audio decoding)
# -DWITH_CSS=1               (support for hardware CSS)
# -DWITH_MACROVISION=1       (support for hardware macrovision)
# -DWITH_SM2288=1            (support for local bus controlled SM2288 encoder)
# -DWITH_SM2288_DMATASKLET=1 (scheduling a tasklet for the DMA xfer)
# -DWITH_SM2288_DIAG=1       (support for SM2288 diagnosis ucode)
# -DWITH_SM2288_CHECKSUM=1   (trap corruption of SM2288 generated stream across copies by logging checksums)
# -DWITH_CHECK_OSD_RLC=1     (checks that rlc does not overflow osd buffer)
# to use none of these do: export REALMAGICHWL_FEATURES=" "
#
ifndef REALMAGICHWL_FEATURES
# don't modify these defaults, it _must_ build on stock RedHat7.3
# MAKE DOES NOT REQUIRE DOUBLE QUOTES, THE SHELL DOES!!!
REALMAGICHWL_FEATURES=-DWITH_8MB_AND_OVER=1 -DWITH_PROGRESSIVE_YUV=1 -DWITH_LOGGING=1 -DWITH_PROC=1 -DWITH_PCI=1 -DWITH_DOLBY=1 -DWITH_CSS=1 -DWITH_MACROVISION=1 -DWITH_SM2288=1 -DWITH_CHECK_OSD_RLC=1
endif

# Alternate kernel includes (k.i.) or debug options are passed using
# export REALMAGICHWL_KI=...
# -I/the/place/where/I/built/my/linux-2.4.18/include    (alternate kernel)
# -I/usr/src/linux-2.4.10/include -g (2.4.10 kgdb)
#
ifndef REALMAGICHWL_KI
# default is to try to build for current running kernel (uname -r), 
# provided the sources of this kernel are in /usr/src
# the second entry is a useful fallback for RH7.2 RH7.3 RH8.0 for SMP
REALMAGICHWL_KI=-I/usr/src/linux-$(shell uname -r)/include -I/usr/src/linux-2.4/include
endif

# Exotic kernels can override this:
ifndef KERNELSTYLE
# don't modify these defaults, it _must_ build on stock RedHat7.3
KERNELSTYLE= \
	-fomit-frame-pointer \
	-fno-strict-aliasing \
	-fno-common \
	-pipe \
	-mpreferred-stack-boundary=2 \
	-DEXPORT_SYMTAB
endif

ifeq ($(findstring -DWITH_LOGGING=1, $(REALMAGICHWL_FEATURES)), -DWITH_LOGGING=1)
CFLAGS +=  -O
else
CFLAGS += -O2
endif

ifeq ($(findstring -DWITH_PROGRESSIVE_YUV=1, $(REALMAGICHWL_FEATURES)), -DWITH_PROGRESSIVE_YUV=1)
CFLAGS += -DSONY_WEGA_SPECIAL
endif

HWLINCLUDE = -I$(HWLINCLUDE_LOCATION)/include \
	-I$(HWLINCLUDE_LOCATION)/include/qhwinc \
	-I$(HWLINCLUDE_LOCATION)/include/qhwinc/boardh \
	-I$(HWLINCLUDE_LOCATION)/include/qhwinc/decoderh \
	-I$(HWLINCLUDE_LOCATION)/include/qhwinc/tvench \
	-I$(HWLINCLUDE_LOCATION)/include/iface \
	-I$(HWLINCLUDE_LOCATION)/include/os \
	-I$(HWLINCLUDE_LOCATION)/ucode \
	-I$(HWLINCLUDE_LOCATION)

WAR += -Wno-import \
	-Wunused \
	-Wimplicit \
	-Wmain \
	-Wreturn-type \
	-Wswitch \
	-Wtrigraphs \
	-Wchar-subscripts \
        -Wuninitialized \
	-Wparentheses \
	-Wpointer-arith \
        -Wcast-align \
	-fcheck-new 

CFLAGS += $(KERNELSTYLE) $(WAR) $(REALMAGICHWL_FEATURES) $(REALMAGICHWL_KI) $(HWLINCLUDE)