feat(mcknly#20): add basic build infrastructure for including pico_w …

…wifi support

CMakeLists.txt

@@ -9,6 +9,9 @@ set(hardware_dir ${CMAKE_CURRENT_SOURCE_DIR}/hardware/${PLATFORM})
 if(EXISTS ${hardware_dir}/prebuild.cmake)
     include(${hardware_dir}/prebuild.cmake)
 endif()
+if(DEFINED WIFI_ENABLED)
+    include(wifi_optional.cmake)
+endif()
 project(${PROJ_NAME} C CXX ASM)
 
 add_definitions(-DPROJECT_NAME=${PROJ_NAME})   # pass the project name to the preprocessor for use in the code

hardware/rp2040/lwip_config/lwipopts.h

@@ -0,0 +1,89 @@
+#ifndef __LWIPOPTS_H__
+#define __LWIPOPTS_H__
+
+
+#define TCPIP_THREAD_PRIO   2
+#define TCPIP_THREAD_STACKSIZE 2048 //1024
+#define DEFAULT_THREAD_STACKSIZE 1024
+#define DEFAULT_RAW_RECVMBOX_SIZE 8
+#define TCPIP_MBOX_SIZE 8
+#define LWIP_TIMEVAL_PRIVATE 0
+
+#define LWIP_SOCKET                 1
+
+#define MEM_LIBC_MALLOC             0
+
+#define MEM_ALIGNMENT               4
+#define MEM_SIZE                    4000
+#define MEMP_NUM_TCP_SEG            32
+#define MEMP_NUM_ARP_QUEUE          10
+#define PBUF_POOL_SIZE              24
+#define LWIP_ARP                    1
+#define LWIP_ETHERNET               1
+#define LWIP_ICMP                   1
+#define LWIP_RAW                    1
+#define TCP_WND                     (8 * TCP_MSS)
+#define TCP_MSS                     1460
+#define TCP_SND_BUF                 (8 * TCP_MSS)
+#define TCP_SND_QUEUELEN            ((4 * (TCP_SND_BUF) + (TCP_MSS - 1)) / (TCP_MSS))
+#define LWIP_NETIF_STATUS_CALLBACK  1
+#define LWIP_NETIF_LINK_CALLBACK    1
+#define LWIP_NETIF_HOSTNAME         1
+#define LWIP_NETCONN                1
+#define MEM_STATS                   0
+#define SYS_STATS                   0
+#define MEMP_STATS                  0
+#define LINK_STATS                  0
+// #define ETH_PAD_SIZE                2
+#define LWIP_CHKSUM_ALGORITHM       3
+#define LWIP_DHCP                   1
+#define LWIP_IPV4                   1
+#define LWIP_TCP                    1
+#define LWIP_UDP                    1
+#define LWIP_DNS                    1
+#define LWIP_TCP_KEEPALIVE          1
+#define LWIP_NETIF_TX_SINGLE_PBUF   1
+#define DHCP_DOES_ARP_CHECK         1
+#define LWIP_DHCP_DOES_ACD_CHECK    0
+
+#ifndef NDEBUG
+#define LWIP_DEBUG                  1
+#define LWIP_STATS                  1
+#define LWIP_STATS_DISPLAY          1
+#endif
+
+#define ETHARP_DEBUG                LWIP_DBG_OFF
+#define NETIF_DEBUG                 LWIP_DBG_OFF
+#define PBUF_DEBUG                  LWIP_DBG_OFF
+#define API_LIB_DEBUG               LWIP_DBG_OFF
+#define API_MSG_DEBUG               LWIP_DBG_OFF
+#define SOCKETS_DEBUG               LWIP_DBG_OFF
+#define ICMP_DEBUG                  LWIP_DBG_OFF
+#define INET_DEBUG                  LWIP_DBG_OFF
+#define IP_DEBUG                    LWIP_DBG_OFF
+#define IP_REASS_DEBUG              LWIP_DBG_OFF
+#define RAW_DEBUG                   LWIP_DBG_OFF
+#define MEM_DEBUG                   LWIP_DBG_OFF
+#define MEMP_DEBUG                  LWIP_DBG_OFF
+#define SYS_DEBUG                   LWIP_DBG_OFF
+#define TCP_DEBUG                   LWIP_DBG_OFF
+#define TCP_INPUT_DEBUG             LWIP_DBG_OFF
+#define TCP_OUTPUT_DEBUG            LWIP_DBG_OFF
+#define TCP_RTO_DEBUG               LWIP_DBG_OFF
+#define TCP_CWND_DEBUG              LWIP_DBG_OFF
+#define TCP_WND_DEBUG               LWIP_DBG_OFF
+#define TCP_FR_DEBUG                LWIP_DBG_OFF
+#define TCP_QLEN_DEBUG              LWIP_DBG_OFF
+#define TCP_RST_DEBUG               LWIP_DBG_OFF
+#define UDP_DEBUG                   LWIP_DBG_OFF
+#define TCPIP_DEBUG                 LWIP_DBG_OFF
+#define PPP_DEBUG                   LWIP_DBG_OFF
+#define SLIP_DEBUG                  LWIP_DBG_OFF
+#define DHCP_DEBUG                  LWIP_DBG_OFF
+
+
+#define DEFAULT_TCP_RECVMBOX_SIZE 128
+
+
+
+#endif /* __LWIPOPTS_H__ */

rtos/FreeRTOSConfig.h

@@ -73,7 +73,7 @@
 #define configUSE_QUEUE_SETS                    1
 #define configUSE_TIME_SLICING                  1
 #define configUSE_NEWLIB_REENTRANT              0
-#define configENABLE_BACKWARD_COMPATIBILITY     0
+#define configENABLE_BACKWARD_COMPATIBILITY     1
 #define configNUM_THREAD_LOCAL_STORAGE_POINTERS 5
 
 /* System */

wifi_optional.cmake

@@ -0,0 +1,26 @@
+# configures the wifi service if a compatible board is selected
+# included automatically if WIFI_ENABLED is defined
+message(STATUS "wifi requested")
+
+if(${BOARD} STREQUAL pico_w)
+    # pico_w specific configuration
+
+    # set up path for WIFI_INTERFACE library
+    set(WIFI_INCLUDE_PATH ${hardware_dir}/lwip_config)
+    # remove the intial cyw43 arch file from the hardware libs
+    list(REMOVE_ITEM hardware_libs pico_cyw43_arch_none)
+    # add the freeRTOS lwip lib
+    list(APPEND hardware_libs pico_cyw43_arch_lwip_sys_freertos)
+else()
+    message(FATAL_ERROR "selected board '${BOARD}' is not supported for wifi")
+endif()
+
+# once board-specific configuration is done, add an interface library to
+# bundle the necessary wifi includes and append that library to the hardware libs list and
+# add in the wifi service code
+add_library(WIFI_INTERFACE INTERFACE)
+target_include_directories(WIFI_INTERFACE INTERFACE
+        ${WIFI_INCLUDE_PATH})
+list(APPEND hardware_libs WIFI_INTERFACE)
+
+add_compile_definitions(WIFI_ENABLED)