lwipopts.h

/**

  ******************************************************************************

  * @file    lwipopts.h

  * @author  MCD Application Team

  * @version V1.0.0

  * @date    31-October-2011

  * @brief   lwIP Options Configuration.

  *          This file is based on Utilities\lwip_v1.3.2\src\include\lwip\opt.h 

  *          and contains the lwIP configuration for the STM32F4x7 demonstration.

  ******************************************************************************

  * @attention

  *

  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS

  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE

  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY

  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING

  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE

  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.

  *

  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>

  ******************************************************************************

  */

#ifndef __LWIPOPTS_H__

#define __LWIPOPTS_H__

/**

 * SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain

 * critical regions during buffer allocation, deallocation and memory

 * allocation and deallocation.

 */

#define SYS_LIGHTWEIGHT_PROT    1

#define ETHARP_TRUST_IP_MAC     0

#define IP_REASSEMBLY           0

#define IP_FRAG                 0

#define ARP_QUEUEING            0

/**

 * NO_SYS==1: Provides VERY minimal functionality. Otherwise,

 * use lwIP facilities.

 */

#define NO_SYS                  0

/* ---------- Memory options ---------- */

/* MEM_ALIGNMENT: should be set to the alignment of the CPU for which

   lwIP is compiled. 4 byte alignment -> define MEM_ALIGNMENT to 4, 2

   byte alignment -> define MEM_ALIGNMENT to 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                (5*1024)

/* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application

   sends a lot of data out of ROM (or other static memory), this

   should be set high. */

#define MEMP_NUM_PBUF           100

/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One

   per active UDP "connection". */

#define MEMP_NUM_UDP_PCB        6

/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP

   connections. */

#define MEMP_NUM_TCP_PCB        10

/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP

   connections. */

#define MEMP_NUM_TCP_PCB_LISTEN 5

/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP

   segments. */

#define MEMP_NUM_TCP_SEG        20

/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active

   timeouts. Default was 3*/

#define MEMP_NUM_SYS_TIMEOUT    10

/* ---------- Pbuf options ---------- */

/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */

#define PBUF_POOL_SIZE          12

/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */

#define PBUF_POOL_BUFSIZE       512

/* ---------- TCP options ---------- */

#define LWIP_TCP                1

#define TCP_TTL                 255

/* Controls if TCP should queue segments that arrive out of

   order. Define to 0 if your device is low on memory. */

#define TCP_QUEUE_OOSEQ         0

/* TCP Maximum segment size. */

#define TCP_MSS                 (1500 - 40)    /* TCP_MSS = (Ethernet MTU - IP header size - TCP header size) */

/* TCP sender buffer space (bytes). */

#define TCP_SND_BUF             (5*TCP_MSS)

/*  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        (4* TCP_SND_BUF/TCP_MSS)

/* TCP receive window. */

#define TCP_WND                 (2*TCP_MSS)

/* ---------- ICMP options ---------- */

#define LWIP_ICMP                       1

/* ---------- DHCP options ---------- */

/* Define LWIP_DHCP to 1 if you want DHCP configuration of

   interfaces. DHCP is not implemented in lwIP 0.5.1, however, so

   turning this on does currently not work. */

#define LWIP_DHCP               0

/* ---------- UDP options ---------- */

#define LWIP_UDP                1

#define UDP_TTL                 255

/* ---------- Statistics options ---------- */

#define LWIP_STATS 0

#define LWIP_PROVIDE_ERRNO 1

/*

   --------------------------------------

   ---------- Checksum options ----------

   --------------------------------------

*/

/* 

The STM32F4x7 allows computing and verifying the IP, UDP, TCP and ICMP checksums by hardware:

 - To use this feature let the following define uncommented.

 - To disable it and process by CPU comment the  the checksum.

*/

#define CHECKSUM_BY_HARDWARE 

#ifdef CHECKSUM_BY_HARDWARE

  /* CHECKSUM_GEN_IP==0: Generate checksums by hardware for outgoing IP packets.*/

  #define CHECKSUM_GEN_IP                 0

  /* CHECKSUM_GEN_UDP==0: Generate checksums by hardware for outgoing UDP packets.*/

  #define CHECKSUM_GEN_UDP                0

  /* CHECKSUM_GEN_TCP==0: Generate checksums by hardware for outgoing TCP packets.*/

  #define CHECKSUM_GEN_TCP                0 

  /* CHECKSUM_CHECK_IP==0: Check checksums by hardware for incoming IP packets.*/

  #define CHECKSUM_CHECK_IP               0

  /* CHECKSUM_CHECK_UDP==0: Check checksums by hardware for incoming UDP packets.*/

  #define CHECKSUM_CHECK_UDP              0

  /* CHECKSUM_CHECK_TCP==0: Check checksums by hardware for incoming TCP packets.*/

  #define CHECKSUM_CHECK_TCP              0

  /* CHECKSUM_CHECK_ICMP==0: Check checksums by hardware for incoming ICMP packets */

  #define CHECKSUM_GEN_ICMP               0

#else

  /* CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets.*/

  #define CHECKSUM_GEN_IP                 1

  /* CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets.*/

  #define CHECKSUM_GEN_UDP                1

  /* CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets.*/

  #define CHECKSUM_GEN_TCP                1

  /* CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets.*/

  #define CHECKSUM_CHECK_IP               1

  /* CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets.*/

  #define CHECKSUM_CHECK_UDP              1

  /* CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets.*/

  #define CHECKSUM_CHECK_TCP              1

  /* CHECKSUM_CHECK_ICMP==1: Check checksums in software for incoming ICMP packets */

  #define CHECKSUM_GEN_ICMP               1

#endif

/*

   ----------------------------------------------

   ---------- Sequential layer options ----------

   ----------------------------------------------

*/

/**

 * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c)

 */

#define LWIP_NETCONN                    1

/*

   ------------------------------------

   ---------- Socket options ----------

   ------------------------------------

*/

/**

 * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c)

 */

#define LWIP_SOCKET                     0

/*

   ----------------------------------------

   ---------- Lwip Debug options ----------

   ----------------------------------------

*/

//#define LWIP_DEBUG                      0

/*

   ---------------------------------

   ---------- OS options ----------

   ---------------------------------

*/

#define TCPIP_THREAD_NAME              "TCP/IP"

#define TCPIP_THREAD_STACKSIZE          1000

#define TCPIP_MBOX_SIZE                 5

#define DEFAULT_UDP_RECVMBOX_SIZE       2000

#define DEFAULT_TCP_RECVMBOX_SIZE       2000

#define DEFAULT_ACCEPTMBOX_SIZE         2000

#define DEFAULT_THREAD_STACKSIZE        500

#define TCPIP_THREAD_PRIO               (configMAX_PRIORITIES - 2)

#define LWIP_COMPAT_MUTEX 1

#endif /* __LWIPOPTS_H__ */

/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/