# LwIP 2.2.1 CMake configuration for STM32F407VET6

cmake_minimum_required(VERSION 3.22)

# Define LwIP library
add_library(lwip)

# Set LwIP source directories
set(LWIP_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src)
set(LWIP_INCLUDE_DIR ${LWIP_SRC_DIR}/include)

# Core LwIP sources
target_sources(lwip PRIVATE
    # Core IPv4
    ${LWIP_SRC_DIR}/core/ipv4/acd.c
    ${LWIP_SRC_DIR}/core/ipv4/autoip.c
    ${LWIP_SRC_DIR}/core/ipv4/dhcp.c
    ${LWIP_SRC_DIR}/core/ipv4/etharp.c
    ${LWIP_SRC_DIR}/core/ipv4/icmp.c
    ${LWIP_SRC_DIR}/core/ipv4/igmp.c
    ${LWIP_SRC_DIR}/core/ipv4/ip4.c
    ${LWIP_SRC_DIR}/core/ipv4/ip4_addr.c
    ${LWIP_SRC_DIR}/core/ipv4/ip4_frag.c
    
    # Core IPv6
    ${LWIP_SRC_DIR}/core/ipv6/dhcp6.c
    ${LWIP_SRC_DIR}/core/ipv6/ethip6.c
    ${LWIP_SRC_DIR}/core/ipv6/icmp6.c
    ${LWIP_SRC_DIR}/core/ipv6/inet6.c
    ${LWIP_SRC_DIR}/core/ipv6/ip6.c
    ${LWIP_SRC_DIR}/core/ipv6/ip6_addr.c
    ${LWIP_SRC_DIR}/core/ipv6/ip6_frag.c
    ${LWIP_SRC_DIR}/core/ipv6/mld6.c
    ${LWIP_SRC_DIR}/core/ipv6/nd6.c
    
    # Core common
    ${LWIP_SRC_DIR}/core/altcp.c
    ${LWIP_SRC_DIR}/core/altcp_alloc.c
    ${LWIP_SRC_DIR}/core/altcp_tcp.c
    ${LWIP_SRC_DIR}/core/def.c
    ${LWIP_SRC_DIR}/core/dns.c
    ${LWIP_SRC_DIR}/core/inet_chksum.c
    ${LWIP_SRC_DIR}/core/init.c
    ${LWIP_SRC_DIR}/core/ip.c
    ${LWIP_SRC_DIR}/core/mem.c
    ${LWIP_SRC_DIR}/core/memp.c
    ${LWIP_SRC_DIR}/core/netif.c
    ${LWIP_SRC_DIR}/core/pbuf.c
    ${LWIP_SRC_DIR}/core/raw.c
    ${LWIP_SRC_DIR}/core/stats.c
    ${LWIP_SRC_DIR}/core/sys.c
    ${LWIP_SRC_DIR}/core/tcp.c
    ${LWIP_SRC_DIR}/core/tcp_in.c
    ${LWIP_SRC_DIR}/core/tcp_out.c
    ${LWIP_SRC_DIR}/core/timeouts.c
    ${LWIP_SRC_DIR}/core/udp.c
    
    # API
    ${LWIP_SRC_DIR}/api/api_lib.c
    ${LWIP_SRC_DIR}/api/api_msg.c
    ${LWIP_SRC_DIR}/api/err.c
    ${LWIP_SRC_DIR}/api/if_api.c
    ${LWIP_SRC_DIR}/api/netbuf.c
    ${LWIP_SRC_DIR}/api/netdb.c
    ${LWIP_SRC_DIR}/api/netifapi.c
    ${LWIP_SRC_DIR}/api/sockets.c
    ${LWIP_SRC_DIR}/api/tcpip.c
    
    # Netif
    ${LWIP_SRC_DIR}/netif/ethernet.c
)

# Include directories
target_include_directories(lwip PUBLIC
    ${LWIP_INCLUDE_DIR}
    ${LWIP_INCLUDE_DIR}/lwip
    ${LWIP_INCLUDE_DIR}/netif
    ${CMAKE_CURRENT_SOURCE_DIR}/port
    ${CMAKE_SOURCE_DIR}/Drivers/STM32F4xx_HAL_Driver/Inc
    ${CMAKE_SOURCE_DIR}/Drivers/STM32F4xx_HAL_Driver/Inc/Legacy
    ${CMAKE_SOURCE_DIR}/Drivers/CMSIS/Device/ST/STM32F4xx/Include
    ${CMAKE_SOURCE_DIR}/Drivers/CMSIS/Include
    ${CMAKE_SOURCE_DIR}/BSP/Inc
    ${CMAKE_SOURCE_DIR}/HAL/Inc
    ${CMAKE_SOURCE_DIR}/Core/Inc
)

# Compiler definitions for STM32F407
target_compile_definitions(lwip PRIVATE
    STM32F407xx
    LWIP_PLATFORM_DIAGNOSTIC=1
    LWIP_NOASSERT=0
)

# Compiler options
target_compile_options(lwip PRIVATE
    -Wall
    -Wextra
    -Wpedantic
    -ffunction-sections
    -fdata-sections
)

# Add port directory (will contain sys_arch.c and ethernetif.c)
add_subdirectory(port)