# --- Revised 3-Clause BSD License ---
# Copyright Semtech Corporation 2020. All rights reserved.
#
# 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 list of conditions and the following disclaimer in the documentation
#       and/or other materials provided with the distribution.
#     * Neither the name of the Semtech corporation nor the names of its
#       software without specific prior written permission.
#
# 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 SEMTECH CORPORATION. BE LIABLE FOR ANY DIRECT,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# -*- makefile -*-

# Top dir of s2core
# - override accordingly in makefile including this setup.gmk
ifndef TD
$(error Need variable TD=../.... - must point to dir holding this setup.gmk)
endif

Q  = $(if ${V},,@)
NQ = $(if ${V},>/dev/null,)

platform ?= linux
variant  ?= std
arch     ?= default

-include ${TD}/setup-${platform}.gmk

LOCAL_ARCH := $(shell gcc -dumpmachine)

ARCH.linux.default   = x86_64-linux-gnu
ARCH.linuxV2.default = x86_64-linux-gnu
ARCH.linuxpico.default = x86_64-linux-gnu
ARCH.corecell.default  = arm-linux-gnueabihf
ARCH.corecell.armv7hf  = arm-linux-gnueabihf
ARCH.corecell.aarch64  = aarch64-linux-gnu
ARCH.rpi.default  = arm-linux-gnueabihf
ARCH.rpi.armv7hf  = arm-linux-gnueabihf
ARCH.rpi.aarch64  = aarch64-linux-gnu
ARCH.kerlink.default = arm-klk-linux-gnueabi
ARCH=${ARCH.${platform}.${arch}}

export TDfull := $(shell cd ${TD} && pwd)
TOOLCHAIN=${HOME}/toolchain-${platform}


ifeq (,$(wildcard ${TOOLCHAIN}))
# No toolchain for cross compile - only ok if we can build locally
ifeq (${LOCAL_ARCH},${ARCH})
TOOLPREFIX=
else
$(warning No toolchain for platform '${platform}' and local arch is not '${ARCH}')
TOOLPREFIX=NO-TOOLCHAIN-FOUND-
endif
else
# Found a matching cross compile toolchain
TOOLPREFIX=${TOOLCHAIN}/bin/${ARCH}-
endif

CC=${TOOLPREFIX}gcc
LD=${TOOLPREFIX}ld
AR=${TOOLPREFIX}ar
OD=${TOOLPREFIX}objdump
OC=${TOOLPREFIX}objcopy

ifeq (kerlink,${platform})
# Needed for loader to find libmpfr.so.4
export LD_LIBRARY_PATH=${TOOLCHAIN}/usr/lib
endif


# Everything being build is somewhere in here
BD=build-${platform}-${variant}

# -- Architecture specific
CFG.arm-linux-gnueabihf = linux
# CFG.x86_64-linux-gnu    = linux

# -- Variant specific
#  testsim runs libloragw inside master process
#  testms  uses a master slave model
CFG.testsim = logini_lvl=DEBUG selftests tlsdebug lgwsim ral_lgw
CFG.testms  = logini_lvl=DEBUG selftests tlsdebug lgwsim ral_master_slave
CFG.testfs  = logini_lvl=DEBUG selftests tlsdebug lgwsim ral_lgw
CFG.testpin = logini_lvl=INFO tlsdebug ral_lgw testpin
CFG.std     = logini_lvl=INFO tlsdebug ral_lgw
CFG.stdn    = logini_lvl=INFO tlsdebug ral_master_slave
CFG.debug   = logini_lvl=DEBUG selftests tlsdebug ral_lgw
CFG.debugn  = logini_lvl=DEBUG selftests tlsdebug ral_master_slave

# -- Platform specific
CFG.linux   = linux lgw1 no_leds
CFG.linuxpico = linux lgw1 no_leds smtcpico
CFG.linuxV2 = linux lgw2 no_leds lgw2genkey
CFG.corecell = linux lgw1 no_leds sx1302
CFG.rpi     = linux lgw1 no_leds
CFG.kerlink = linux lgw1 no_leds

SD.default = src-linux

SD = $(or ${SD.${platform}}, ${SD.default})

UTILS.linux = mtuns

UTILS = $(or ${UTILS.${platform}}, ${UTILS.default})

DEPS.default = mbedtls lgw
DEPS.linuxpico = mbedtls smtcpico
DEPS.linuxV2 = mbedtls lgw2
DEPS.corecell = mbedtls lgw1302
DEPS.rpi     = mbedtls lgw

DEPS = $(or ${DEPS.${platform}}, ${DEPS.default})

PERSO.default =
PERSO  = $(or ${PERSO.${platform}}, ${PERSO.default})
PERSOH = $(if ${PERSO},perso.h,)

# Paths to dependencies
MBEDLIBS = -lmbedtls -lmbedx509 -lmbedcrypto

# -lm: Needed for lgw which uses pow/ceil
ifneq (minihub,$(platform))
SYSLIBS  = -lm
endif

CFLAGS.linuxpico.debug = -g -O0
CFLAGS.corecell.debug = -g -O0
CFLAGS.linuxpico.debugn = -g -O0
CFLAGS.linux.testsim  = -g -O0 --coverage
CFLAGS.linux.testms   = -g -O0 --coverage
CFLAGS.linux.testfs   = -g -O0 --coverage
CFLAGS.linux.testpin  = -g -O3
CFLAGS.linux.std      = -g -O3

LIBS.linux   = -llgw   ${MBEDLIBS}      -lpthread
LIBS.linuxV2 = -llgw2  ${MBEDLIBS} -lrt -lpthread -lspi
LIBS.linuxpico = -llgw ${MBEDLIBS}      -lpthread
LIBS.corecell = -llgw1302  ${MBEDLIBS}      -lpthread -lrt
LIBS.rpi     = -llgw   ${MBEDLIBS}      -lpthread
LIBS.kerlink = -llgw   ${MBEDLIBS} -lrt -lpthread

xCFG     =     ${CFG.${ARCH}}     ${CFG.${platform}}     ${CFG.${variant}}    ${CFG.${platform}.${variant}}
xCFLAGS  =  ${CFLAGS.${ARCH}}  ${CFLAGS.${platform}}  ${CFLAGS.${variant}} ${CFLAGS.${platform}.${variant}}
xINCS    =    ${INCS.${ARCH}}    ${INCS.${platform}}    ${INCS.${variant}}
xLDFLAGS = ${LDFLAGS.${ARCH}} ${LDFLAGS.${platform}} ${LDFLAGS.${variant}}
xLIBS    =    ${LIBS.${ARCH}}    ${LIBS.${platform}}    ${LIBS.${variant}}
xFILES   =   ${FILES.${ARCH}}   ${FILES.${platform}}   ${FILES.${variant}}
xOCFLAGS = ${OCFLAGS.${ARCH}} ${OCFLAGS.${platform}} ${OCFLAGS.${variant}}

DEFS     = -DCFG_platform_${platform} -DCFG_platform=\"${platform}\" -DCFG_variant_${variant} -DCFG_variant=\"${variant}\"
DEFS    += -DCFG_bdate='"$(shell date -u '+%Y-%m-%d %H:%M:%S')"'
DEFS    += -DCFG_version='"$(shell if [ -f ${TD}/VERSION.txt ]; then cat ${TD}/VERSION.txt; else git describe --tag; fi)(${platform}/${variant})"'
DEFS    += -DCFG_commit='"$(shell if git rev-parse --git-dir >/dev/null 2>&1; then git rev-parse --short HEAD; else echo -; fi)"'
DEFS    += ${xCFG:%=-DCFG_%}
INCS     = ${VPATH:%=-I%} -I ${TD}/${BD}/include ${xINCS}
CFLAGS   = -Wall -std=gnu11 ${INCS} ${DEFS} ${xCFLAGS}
LDFLAGS  = -L ${TD}/${BD}/lib ${xLDFLAGS}
LIBS     = ${xLIBS} ${SYSLIBS}
FILES    = ${xFILES}
OCFLAGS  = ${xOCFLAGS}