/* ---------------------------------------------------------------------------- * ATMEL Microcontroller Software Support * ---------------------------------------------------------------------------- * Copyright (c) 2010, Atmel Corporation * * 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 disclaimer below. * * Atmel's name may not be used to endorse or promote products derived from * this software without specific prior written permission. * * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ---------------------------------------------------------------------------- */ #ifndef _LWIPOPTS_H #define _LWIPOPTS_H /* ----------------------------------------------- ---------- Platform specific locking ---------- ----------------------------------------------- */ /** * NO_SYS==1: Provides VERY minimal functionality. Otherwise, * use lwIP facilities. */ #define NO_SYS 1 /* ------------------------------------ ---------- Memory options ---------- ------------------------------------ */ /** * MEM_LIBC_MALLOC==1: Use malloc/free/realloc provided by your C-library * instead of the lwip internal allocator. Can save code size if you * already use it. */ #define MEM_LIBC_MALLOC 0 /** * MEM_ALIGNMENT: should be set to the alignment of the CPU * 4 byte alignment -> #define MEM_ALIGNMENT 4 * 2 byte alignment -> #define MEM_ALIGNMENT 2 */ #define MEM_ALIGNMENT 4 /** * MEM_SIZE: the size of the heap memory. If the application will send * a lot of data that needs to be copied, this should be set high. */ #define MEM_SIZE 16000 /** * MEMP_OVERFLOW_CHECK: memp overflow protection reserves a configurable * amount of bytes before and after each memp element in every pool and fills * it with a prominent default value. * MEMP_OVERFLOW_CHECK == 0 no checking * MEMP_OVERFLOW_CHECK == 1 checks each element when it is freed * MEMP_OVERFLOW_CHECK >= 2 checks each element in every pool every time * memp_malloc() or memp_free() is called (useful but slow!) */ #define MEMP_OVERFLOW_CHECK 1 /** * MEMP_SANITY_CHECK==1: run a sanity check after each memp_free() to make * sure that there are no cycles in the linked lists. */ #define MEMP_SANITY_CHECK 0 /* ------------------------------------------------ ---------- Internal Memory Pool Sizes ---------- ------------------------------------------------ */ /** * MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF). * If the application sends a lot of data out of ROM (or other static memory), * this should be set high. */ #define MEMP_NUM_PBUF 4 /** * MEMP_NUM_RAW_PCB: Number of raw connection PCBs * (requires the LWIP_RAW option) */ #define MEMP_NUM_RAW_PCB 0 /** * MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One * per active UDP "connection". * (requires the LWIP_UDP option) */ #define MEMP_NUM_UDP_PCB 5 /** * MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections. * (requires the LWIP_TCP option) */ #define MEMP_NUM_TCP_PCB 2 /** * MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections. * (requires the LWIP_TCP option) */ #define MEMP_NUM_TCP_PCB_LISTEN 2 /** * MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments. * (requires the LWIP_TCP option) */ #define MEMP_NUM_TCP_SEG 40 /** * MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts. * (requires NO_SYS==0) */ #define MEMP_NUM_SYS_TIMEOUT 0 /** * MEMP_NUM_NETBUF: the number of struct netbufs. * (only needed if you use the sequential API, like api_lib.c) */ #define MEMP_NUM_NETBUF 0 /** * MEMP_NUM_NETCONN: the number of struct netconns. * (only needed if you use the sequential API, like api_lib.c) */ #define MEMP_NUM_NETCONN 0 /** * PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */ #define PBUF_POOL_SIZE 100 /* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */ #define PBUF_POOL_BUFSIZE 1500 /* --------------------------------- ---------- ARP options ---------- --------------------------------- */ /** * LWIP_ARP==1: Enable ARP functionality. */ #define LWIP_ARP 1 /** * ARP_TABLE_SIZE: Number of active MAC-IP address pairs cached. */ #define ARP_TABLE_SIZE 2 /** * ARP_QUEUEING==1: Outgoing packets are queued during hardware address * resolution. */ #define ARP_QUEUEING 0 /* -------------------------------- ---------- IP options ---------- -------------------------------- */ /** * IP_FORWARD==1: Enables the ability to forward IP packets across network * interfaces. If you are going to run lwIP on a device with only one network * interface, define this to 0. */ #define IP_FORWARD 0 /** * IP_OPTIONS_ALLOWED: Defines the behavior for IP options. * IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped. * IP_OPTIONS_ALLOWED==1: IP options are allowed (but not parsed). */ #define IP_OPTIONS_ALLOWED 0 /** * IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that * this option does not affect outgoing packet sizes, which can be controlled * via IP_FRAG. */ #define IP_REASSEMBLY 0 /** * IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note * that this option does not affect incoming packet sizes, which can be * controlled via IP_REASSEMBLY. */ #define IP_FRAG 0 /** * IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally) * a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived * in this time, the whole packet is discarded. */ #define IP_REASS_MAXAGE 3 /** * IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled. * Since the received pbufs are enqueued, be sure to configure * PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive * packets even if the maximum amount of fragments is enqueued for reassembly! */ #define IP_REASS_BUFSIZE 2048 /** * IP_FRAG_MAX_MTU: Assumed max MTU on any interface for IP frag buffer * (requires IP_FRAG_USES_STATIC_BUF==1) */ #define IP_FRAG_MAX_MTU 1500 /* ---------------------------------- ---------- ICMP options ---------- ---------------------------------- */ /** * LWIP_ICMP==1: Enable ICMP module inside the IP stack. * Be careful, disable that make your product non-compliant to RFC1122 */ #define LWIP_ICMP 1 /** * ICMP_TTL: Default value for Time-To-Live used by ICMP packets. */ #define ICMP_TTL (IP_DEFAULT_TTL) /* --------------------------------- ---------- RAW options ---------- --------------------------------- */ /** * LWIP_RAW==1: Enable application layer to hook into the IP layer itself. */ #define LWIP_RAW 0 /* ---------------------------------- ---------- DHCP options ---------- ---------------------------------- */ /** * LWIP_DHCP==1: Enable DHCP module. */ #define LWIP_DHCP 0 /* ---------------------------------- ---------- SNMP options ---------- ---------------------------------- */ /** * LWIP_SNMP==1: Turn on SNMP module. UDP must be available for SNMP * transport. */ #define LWIP_SNMP 0 /* --------------------------------- ---------- UDP options ---------- --------------------------------- */ /** * LWIP_UDP==1: Turn on UDP. */ #define LWIP_UDP 1 /* --------------------------------- ---------- TCP options ---------- --------------------------------- */ /** * LWIP_TCP==1: Turn on TCP. */ #define LWIP_TCP 1 /** * TCP_WND: The size of a TCP window. This must be at least * (2 * TCP_MSS) for things to work well */ #define TCP_WND 1024 /** * TCP_SYNMAXRTX: Maximum number of retransmissions of SYN segments. */ #define TCP_SYNMAXRTX 2 /** * TCP_QUEUE_OOSEQ==1: TCP will queue segments that arrive out of order. * Define to 0 if your device is low on memory. */ #define TCP_QUEUE_OOSEQ 0 /** * TCP_MSS: TCP Maximum segment size. (default is 536, a conservative default, * you might want to increase this.) * For the receive side, this MSS is advertised to the remote side * when opening a connection. For the transmit size, this MSS sets * an upper limit on the MSS advertised by the remote host. */ #define TCP_MSS 128 /** * TCP_SND_BUF: TCP sender buffer space (bytes). */ #define TCP_SND_BUF 1536 /** * TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least * as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work. */ #define TCP_SND_QUEUELEN 2 * TCP_SND_BUF/TCP_MSS /* ------------------------------------ ---------- LOOPIF options ---------- ------------------------------------ */ /** * LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1) and loopif.c */ #define LWIP_HAVE_LOOPIF 0 /* ---------------------------------------------- ---------- Sequential layer options ---------- ---------------------------------------------- */ /** * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c) */ #define LWIP_NETCONN 0 /* ------------------------------------ ---------- Socket options ---------- ------------------------------------ */ /** * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c) */ #define LWIP_SOCKET 0 /* ---------------------------------------- ---------- Statistics options ---------- ---------------------------------------- */ /** * LWIP_STATS==1: Enable statistics collection in lwip_stats. */ #define LWIP_STATS 0 /* --------------------------------------- ---------- Debugging options ---------- --------------------------------------- */ /** * LWIP_DBG_TYPES_ON: A mask that can be used to globally enable/disable * debug messages of certain types. */ #define LWIP_DBG_TYPES_ON LWIP_DBG_OFF /** * TCP_DEBUG: Enable debugging for TCP. */ #define TCP_DEBUG LWIP_DBG_OFF /** * TCP_INPUT_DEBUG: Enable debugging in tcp_in.c for incoming debug. */ #define TCP_INPUT_DEBUG LWIP_DBG_OFF /** * TCP_OUTPUT_DEBUG: Enable debugging in tcp_out.c output functions. */ #define TCP_OUTPUT_DEBUG LWIP_DBG_OFF /* --------------------------------------- ---------- Misc ---------- --------------------------------------- */ /* No assert */ #define LWIP_NOASSERT /* No error output */ #define LWIP_ERROR(message, expression, handler) #endif /* #ifndef _LWIPOPTS_H */