# Makefile for Raspberry Pi LPC1114 I/O Processor Expansion Board

# SPI Agent services transport library

# Copyright (C)2013-2024, Philip Munts dba Munts Technologies.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
#   this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

# Override the following macro to build out of tree

RASPBERRYPI_LPC1114_SRC ?= $(HOME)/rpi-mcu/expansion/LPC1114/src

# Detect native Raspbian on Raspberry Pi

RASPBIAN	:= $(shell if grep -q -s -i raspbian /etc/os-release ; then echo yes ; else echo no ; fi)

# Cygwin needs a shared libarary file with .dll suffix instead .so

ifeq ($(findstring CYGWIN, $(shell uname)), CYGWIN)
SOSUFFIX	:= dll
else
SOSUFFIX	:= so
endif

# Definitions common to all platforms

HOST_CC		= $(CROSS_COMPILE)gcc
HOST_AR		= $(CROSS_COMPILE)ar
HOST_CFLAGS	+= -Wall -I. -I$(RASPBERRYPI_LPC1114_SRC)/c/include $(DEBUGFLAGS)
HOST_LDFLAGS	+= -shared

DESTDIR		= /usr/local

OBJECTS		= spi_agent_services.o resolve.o
OBJECTS		+= adc.o gpio.o legorc.o pwm.o sfr.o timer.o

# Definitions for MuntsOS client/server extension packages

ifneq ($(BOARDNAME),)
MUNTSOS		?= /usr/local/share/muntsos
include $(MUNTSOS)/include/$(BOARDNAME).mk

HOST_CFLAGS	+= -fPIC -I$(GCCSYSROOT)/usr/include/tirpc
HOST_LDFLAGS	+= -Wl,-soname,libspiagent.$(SOSUFFIX) -lm -ltirpc
RPCGEN_FLAGS	+= -C -M -N

TRANSPORTS	?= ioctl,http,oncrpc,xmlrpc

BUILDNUM	?= 1
PKGNAME		:= gcc-$(TOOLCHAIN_NAME)-libspiagent
PKGVER		:= $(GCCVER)-$(shell date +%Y.%j).$(BUILDNUM)
PKGARCH		:= all
PKGDIR		:= $(PKGNAME)-$(PKGVER)-$(PKGARCH)
PKGFILE		:= $(PKGDIR).deb

ifeq ($(BOARDBASE), BeagleBone)
HOST_CFLAGS	+= -DBeagleBone
endif

ifneq ($(findstring RaspberryPi, $(BOARDNAME)),)
HOST_CFLAGS	+= -DRaspberryPi
endif
else

# Definitions for Cygwin native client

ifeq ($(findstring CYGWIN, $(shell uname)), CYGWIN)
HOST_LDFLAGS	+= -Wl,-soname,libspiagent.$(SOSUFFIX) -ltirpc
RPCGEN_FLAGS	+= -C -M -N
TRANSPORTS	?= http,oncrpc,xmlrpc
endif

# Definitions for Linux native client/server

ifeq ($(shell uname), Linux)
HOST_CFLAGS	+= -fPIC -I/usr/include/tirpc
HOST_LDFLAGS	+= -ltirpc -Wl,-soname,libspiagent.$(SOSUFFIX) -lm
RPCGEN_FLAGS	+= -C -M -N

ifeq ($(RASPBIAN), yes)
HOST_CFLAGS	+= -DRaspberryPi
TRANSPORTS	?= ioctl,http,oncrpc,xmlrpc
else
TRANSPORTS	?= http,oncrpc,xmlrpc
endif
endif

# Definitions for MacOS native client

ifeq ($(shell uname), Darwin)
HOST_CFLAGS	+= -D__unix__ -DONCRPCTHREADUNSAFE -fPIC
RPCGEN_FLAGS	+= -C -N

FINKPREFIX      ?= /sw
MACPORTSPREFIX  ?= /opt/local

ifneq ("$(wildcard $(FINKPREFIX))", "")
HOST_CFLAGS	+= -I$(FINKPREFIX)/include
HOST_LDFLAGS	+= -L$(FINKPREFIX)/lib
endif

ifneq ("$(wildcard $(MACPORTSPREFIX))", "")
HOST_CFLAGS	+= -I$(MACPORTSPREFIX)/include
HOST_LDFLAGS	+= -L$(MACPORTSPREFIX)/lib
endif

TRANSPORTS	?= http,oncrpc,xmlrpc
endif

# Definitions for OpenBSD native client

ifeq ($(shell uname), OpenBSD)
HOST_CFLAGS	+= -DONCRPCTHREADUNSAFE -fPIC -I/usr/local/include
HOST_LDFLAGS	+= -L/usr/local/lib -Wl,-soname,libspiagent.$(SOSUFFIX) -lm
HOST_LDFLAGS	+= -lpthread -lxmlrpc_xmlparse -lxmlrpc_xmltok
RPCGEN_FLAGS	+= -C -N
TRANSPORTS	?= http,oncrpc,xmlrpc
endif
endif

# Definitions for ioctl() transport services

ifeq ($(findstring ioctl, $(TRANSPORTS)), ioctl)
HOST_CFLAGS	+= -DENABLE_IOCTL
HOST_LDFLAGS	+= -lsimpleio
OBJECTS		+= spi_agent_services_ioctl.o
OBJECTS		+= spi_agent_services_i2c.o
OBJECTS		+= spi_agent_services_spi.o
OBJECTS		+= config.o
OBJECTS		+= interrupt.o
endif

# Definitions for HTTP transport services

ifeq ($(findstring http, $(TRANSPORTS)), http)
HOST_CFLAGS	+= -DENABLE_HTTP
HOST_LDFLAGS	+= -lcurl
OBJECTS		+= spi_agent_services_http.o
endif

# Definitions for ONC-RPC transport services

ifeq ($(findstring oncrpc, $(TRANSPORTS)), oncrpc)
HOST_CFLAGS	+= -DENABLE_ONCRPC
OBJECTS		+= spi_agent_oncrpc_clnt.o
OBJECTS		+= spi_agent_oncrpc_xdr.o
OBJECTS		+= spi_agent_services_oncrpc.o
endif

# Definitions for XML-RPC transport services

ifeq ($(findstring xmlrpc, $(TRANSPORTS)), xmlrpc)
HOST_CFLAGS	+= -DENABLE_XMLRPC
HOST_LDFLAGS	+= -lxmlrpc -lxmlrpc_client -lxmlrpc_util
OBJECTS		+= spi_agent_services_xmlrpc.o
endif

# Default target

ifneq ($(BOARDNAME),)
# For MuntsOS, build a cross-toolchain extension package
default: package.deb
else
# For all other targets, just build the libraries
default: libspiagent.$(SOSUFFIX) libspiagent.a
endif

GAINROOT	?= fakeroot

# Define a pattern rule for compiling C source programs

%.o: %.c
	$(HOST_CC) $(HOST_CFLAGS) -c -o $@ $^

# Generate ONC-RPC intermediate files

spi_agent_oncrpc.h:
	cp $(RASPBERRYPI_LPC1114_SRC)/spi-agent-oncrpc/spi_agent_oncrpc.x .
	rpcgen $(RPCGEN_FLAGS) spi_agent_oncrpc.x

spi_agent_oncrpc_clnt.c: spi_agent_oncrpc.h

spi_agent_oncrpc_xdr.c: spi_agent_oncrpc.h

# Build the shared library

libspiagent.$(SOSUFFIX): $(OBJECTS)
	$(HOST_CC) -o $@ $(OBJECTS) $(HOST_LDFLAGS)

# Build the static library

libspiagent.a: $(OBJECTS)
	$(HOST_AR) crs $@ $^

# Install the library and header files

install: libspiagent.a libspiagent.so
	mkdir -p $(DESTDIR)/lib
	install -cm 0555 libspiagent.so			$(DESTDIR)/lib
	$(RASPBERRYPI_LPC1114_SRC)/scripts/update_services

# Unnstall the library and header files

uninstall:
	rm -f $(DESTDIR)/lib/libspiagent.so

# Build cross-compiled library package for MuntsOS

ifneq ($(BOARDNAME),)
package.deb: libspiagent.a libspiagent.so
	mkdir -p					$(PKGDIR)/DEBIAN
	install -cm 0644 control			$(PKGDIR)/DEBIAN
	sed -i s/@@NAME@@/$(PKGNAME)/g			$(PKGDIR)/DEBIAN/control
	sed -i s/@@ARCH@@/$(PKGARCH)/g			$(PKGDIR)/DEBIAN/control
	sed -i s/@@VERSION@@/$(PKGVER)/g		$(PKGDIR)/DEBIAN/control
	sed -i s/@@BOARDNAME@@/$(BOARDBASE)/g		$(PKGDIR)/DEBIAN/control
	sed -i s/@@TOOLCHAIN@@/$(TOOLCHAIN_NAME)/g	$(PKGDIR)/DEBIAN/control
	mkdir -p					$(PKGDIR)$(LIBSLIBDIR)
	install -cm 0644 libspiagent.a			$(PKGDIR)$(LIBSLIBDIR)
	install -cm 0755 libspiagent.so			$(PKGDIR)$(LIBSLIBDIR)
	$(GAINROOT) chown -R root.root			$(PKGDIR)
	$(GAINROOT) dpkg-deb -Zgzip --build		$(PKGDIR)
	$(GAINROOT) chown -R --reference=Makefile *.deb	$(PKGDIR)
endif

# Clean out working files

clean:
	-rm -f libspiagent.*
	-rm -f $(OBJECTS)
ifeq ($(findstring oncrpc, $(TRANSPORTS)), oncrpc)
	-rm -f spi_agent_oncrpc.h
	-rm -f spi_agent_oncrpc.x
	-rm -f spi_agent_oncrpc_clnt.c
	-rm -f spi_agent_oncrpc_svc.c
	-rm -f spi_agent_oncrpc_xdr.c
endif
ifneq ($(BOARDNAME),)
	-rm -rf $(PKGDIR) *.deb
endif

reallyclean: clean

distclean: reallyclean