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Add a cmake function for configuring IP addresses (#1424)

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The fix for the following issue adds some macros to configure default
ip addresses. These are expressed in hex which is a bit non-obvious to
set. So add a macro to convert from a string to the hex representation.

https://github.com/georgerobotics/cyw43-driver/issues/41
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Peter Harper 2024-01-05 15:33:41 +00:00 committed by GitHub
parent 9f45e3c905
commit d7bbadb291
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1 changed files with 27 additions and 0 deletions
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27
src/rp2_common/pico_cyw43_driver/CMakeLists.txt
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@ -89,5 +89,32 @@ if (EXISTS ${PICO_CYW43_DRIVER_PATH}/${CYW43_DRIVER_TEST_FILE})
)
endif()
# Set an ip address in a compile definition
# target name, target type, compile definition name to set then address in a string
# This can be used to set the following compile definitions
# CYW43_DEFAULT_IP_ADDRESS
# CYW43_DEFAULT_IP_MASK
# CYW43_DEFAULT_IP_GATEWAY
# CYW43_DEFAULT_IP_DNS
# CYW43_DEFAULT_AP_IP_ADDRESS
# e.g. pico_configure_ip4_address(picow_tcpip_server_background PRIVATE CYW43_DEFAULT_IP_ADDRESS "10.3.15.204")
function(pico_configure_ip4_address TARGET_LIB TARGET_TYPE DEF_NAME IP_ADDRESS_STR)
string(REGEX MATCHALL "[0-9]+" IP_ADDRESS_LIST ${IP_ADDRESS_STR})
list(LENGTH IP_ADDRESS_LIST IP_ADDRESS_COMPONENT_COUNT)
if (NOT ${IP_ADDRESS_COMPONENT_COUNT} EQUAL 4)
message(FATAL_ERROR "wrong number of components in ip address 4 != ${IP_ADDRESS_COMPONENT_COUNT}")
endif()
set(IP_ADDRESS_HEX "0x0")
foreach(IP_COMPONENT ${IP_ADDRESS_LIST})
if (${IP_COMPONENT} GREATER 255)
message(FATAL_ERROR "ip address component too big ${IP_COMPONENT} > 255")
endif()
math(EXPR IP_ADDRESS_HEX "(${IP_ADDRESS_HEX} << 8 ) | ${IP_COMPONENT}" OUTPUT_FORMAT HEXADECIMAL)
endforeach()
target_compile_definitions(${TARGET_LIB} ${TARGET_TYPE}
${DEF_NAME}=${IP_ADDRESS_HEX}
)
endfunction()
pico_promote_common_scope_vars()
endif()