#
# Copyright 2018, Data61, CSIRO (ABN 41 687 119 230)
#
# SPDX-License-Identifier: BSD-2-Clause
#

cmake_minimum_required(VERSION 3.8.2)

project(libethdrivers C)

set(configure_string "")

config_string(
    LibEthdriverRXDescCount
    LIB_ETHDRIVER_RX_DESC_COUNT
    "Number of RX descriptors in the descriptor ring for the driver."
    DEFAULT
    128
    UNQUOTE
)

config_string(
    LibEthdriverTXDescCount
    LIB_ETHDRIVER_TX_DESC_COUNT
    "Number of TX descriptors in the descriptor ring for the driver."
    DEFAULT
    128
    UNQUOTE
)

config_string(
    LibEthdriverNumPreallocatedBuffers
    LIB_ETHDRIVER_NUM_PREALLOCATED_BUFFERS
    "Number of preallocated DMA buffers
    To avoid allocating and freeing buffers continuously the driver
    can preallocate a base amount internally."
    DEFAULT
    512
    UNQUOTE
)

config_string(
    LibEthdriverPreallocatedBufSize
    LIB_ETHDRIVER_PREALLOCATED_BUF_SIZE
    "Size of preallocated DMA buffers
    The size of each preallocated buffer that will be used for RX and
    TX allocation requests. This needs to be the maximum of the RX buffer
    size and the MTU. Currently the largest RX buffer of any of the
    implemented drivers is 2048, and the MTU is 1500"
    DEFAULT
    2048
    UNQUOTE
)

config_option(LibEthdriverPicoTCBAsyncDriver LIB_PICOTCP_ASYNC_DRIVER "Async driver for PicoTcp
    Use an async instead of a polling driver for PicoTCP." DEFAULT ON)
mark_as_advanced(
    LibEthdriverRXDescCount
    LibEthdriverTXDescCount
    LibEthdriverNumPreallocatedBuffers
    LibEthdriverPreallocatedBufSize
    LibEthdriverPicoTCBAsyncDriver
)
add_config_library(ethdrivers "${configure_string}")

if("${KernelPlatform}" MATCHES "imx8mq-evk")
    # Re-use the imx6 sources
    set(PlatPrefix "imx6")
else()
    set(PlatPrefix "${KernelPlatform}")
endif()

file(
    GLOB
        sources
        src/plat/${PlatPrefix}/*.c
        src/plat/${PlatPrefix}/uboot/*.c
        src/plat/${PlatPrefix}/cpsw/*.c
        src/*.c
)

add_library(ethdrivers STATIC EXCLUDE_FROM_ALL ${sources})
target_include_directories(ethdrivers PRIVATE src/plat/${PlatPrefix}/cpsw)
target_include_directories(
    ethdrivers
    PUBLIC include plat_include/${PlatPrefix} arch_include/${KernelArch}
)
target_link_libraries(
    ethdrivers
    muslc
    platsupport
    ethdrivers_Config
    lwip_Config
    picotcp_Config
    sel4_autoconf
)
if(LibLwip)
    target_link_libraries(ethdrivers lwip)
endif()
if(LibPicotcp)
    target_link_libraries(ethdrivers picotcp)
endif()

if("${KernelPlatform}" STREQUAL "tx2")
    target_link_libraries(ethdrivers platsupportports)
endif()

# Get the list of driver modules
string(
    JOIN
    ","
    DriverModules
    "-Wl"
    "--undefined=tx_ether_qos_ptr"
    "--undefined=zynq7000_gem_ptr"
    "--undefined=imx_fec_ptr"
    "--undefined=odroidc2_ethernet_ptr"
)

target_link_libraries(ethdrivers "${DriverModules}")