text: //*****************************************************************************
  //
  // lwipopts.h - Configuration file for lwIP
  //
  // Copyright (c) 2008-2013 Texas Instruments Incorporated.  All rights reserved.
  // Software License Agreement
  // 
  // Texas Instruments (TI) is supplying this software for use solely and
  // exclusively on TI's microcontroller products. The software is owned by
  // TI and/or its suppliers, and is protected under applicable copyright
  // laws. You may not combine this software with "viral" open-source
  // software in order to form a larger program.
  // 
  // THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
  // NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
  // NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
  // CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
  // DAMAGES, FOR ANY REASON WHATSOEVER.
  // 
  // This is part of revision 10636 of the RDK-IDM-SBC Firmware Package.
  //
  //*****************************************************************************
  //
  // NOTE:  This file has been derived from the lwIP/src/include/lwip/opt.h
  // header file.
  //
  // For additional details, refer to the original "opt.h" file, and lwIP
  // documentation.
  //
  //*****************************************************************************
  
  #ifndef __LWIPOPTS_H__
  #define __LWIPOPTS_H__
  
  //*****************************************************************************
  //
  // ---------- Stellaris / lwIP Port Options ----------
  //
  //*****************************************************************************
  #define HOST_TMR_INTERVAL               0
  //#define DHCP_EXPIRE_TIMER_MSECS         (60 * 1000)
  //#define INCLUDE_HTTPD_SSI
  //#define INCLUDE_HTTPD_CGI
  //#define DYNAMIC_HTTP_HEADERS
  //#define INCLUDE_HTTPD_DEBUG
  
  //*****************************************************************************
  //
  // ---------- Platform specific locking ----------
  //
  //*****************************************************************************
  #define SYS_LIGHTWEIGHT_PROT            1           // default is 0
  #define NO_SYS                          1           // default is 0
  //#define MEMCPY(dst,src,len)             memcpy(dst,src,len)
  //#define SMEMCPY(dst,src,len)            memcpy(dst,src,len)
  
  //*****************************************************************************
  //
  // ---------- Memory options ----------
  //
  //*****************************************************************************
  //#define MEM_LIBC_MALLOC                 0
  #define MEM_ALIGNMENT                   4           // default is 1
  #define MEM_SIZE                        (4 * 1024)  // default is 1600
  //#define MEMP_OVERFLOW_CHECK             0
  //#define MEMP_SANITY_CHECK               0
  //#define MEM_USE_POOLS                   0
  //#define MEMP_USE_CUSTOM_POOLS           0
  
  //*****************************************************************************
  //
  // ---------- Internal Memory Pool Sizes ----------
  //
  //*****************************************************************************
  //#define MEMP_NUM_PBUF                   16
  //#define MEMP_NUM_RAW_PCB                4
  //#define MEMP_NUM_UDP_PCB                4
  //#define MEMP_NUM_TCP_PCB                5
  //#define MEMP_NUM_TCP_PCB_LISTEN         8
  //#define MEMP_NUM_TCP_SEG                16
  //#define MEMP_NUM_REASSDATA              5
  //#define MEMP_NUM_ARP_QUEUE              30
  //#define MEMP_NUM_IGMP_GROUP             8
  //#define MEMP_NUM_SYS_TIMEOUT            3
  //#define MEMP_NUM_NETBUF                 2
  //#define MEMP_NUM_NETCONN                4
  //#define MEMP_NUM_TCPIP_MSG_API          8
  //#define MEMP_NUM_TCPIP_MSG_INPKT        8
  //#define PBUF_POOL_SIZE                  16
  
  //*****************************************************************************
  //
  // ---------- ARP options ----------
  //
  //*****************************************************************************
  //#define LWIP_ARP                        1
  //#define ARP_TABLE_SIZE                  10
  //#define ARP_QUEUEING                    1
  //#define ETHARP_TRUST_IP_MAC             1
  
  //*****************************************************************************
  //
  // ---------- IP options ----------
  //
  //*****************************************************************************
  //#define IP_FORWARD                      0
  //#define IP_OPTIONS_ALLOWED              1
  #define IP_REASSEMBLY                   0           // default is 1
  #define IP_FRAG                         0           // default is 1
  //#define IP_REASS_MAXAGE                 3
  //#define IP_REASS_MAX_PBUFS              10
  //#define IP_FRAG_USES_STATIC_BUF         1
  //#define IP_FRAG_MAX_MTU                 1500
  //#define IP_DEFAULT_TTL                  255
  
  //*****************************************************************************
  //
  // ---------- ICMP options ----------
  //
  //*****************************************************************************
  //#define LWIP_ICMP                       1
  //#define ICMP_TTL                       (IP_DEFAULT_TTL)
  
  //*****************************************************************************
  //
  // ---------- RAW options ----------
  //
  //*****************************************************************************
  //#define LWIP_RAW                        1
  //#define RAW_TTL                        (IP_DEFAULT_TTL)
  
  //*****************************************************************************
  //
  // ---------- DHCP options ----------
  //
  //*****************************************************************************
  #define LWIP_DHCP                       1           // default is 0
  //#define DHCP_DOES_ARP_CHECK             ((LWIP_DHCP) && (LWIP_ARP))
  
  //*****************************************************************************
  //
  // ---------- UPNP options ----------
  //
  //*****************************************************************************
  //#define LWIP_UPNP                       0
  
  //*****************************************************************************
  //
  // ---------- PTPD options ----------
  //
  //*****************************************************************************
  //#define LWIP_PTPD                       0
  
  //*****************************************************************************
  //
  // ---------- AUTOIP options ----------
  //
  //*****************************************************************************
  #define LWIP_AUTOIP                     1           // default is 0
  #define LWIP_DHCP_AUTOIP_COOP           ((LWIP_DHCP) && (LWIP_AUTOIP))
                                                      // default is 0
  #define LWIP_DHCP_AUTOIP_COOP_TRIES     5           // default is 9
  
  //*****************************************************************************
  //
  // ---------- SNMP options ----------
  //
  //*****************************************************************************
  //#define LWIP_SNMP                       0
  //#define SNMP_CONCURRENT_REQUESTS        1
  //#define SNMP_TRAP_DESTINATIONS          1
  //#define SNMP_PRIVATE_MIB                0
  //#define SNMP_SAFE_REQUESTS              1
  
  //*****************************************************************************
  //
  // ---------- IGMP options ----------
  //
  //*****************************************************************************
  //#define LWIP_IGMP                       0
  
  //*****************************************************************************
  //
  // ---------- DNS options -----------
  //
  //*****************************************************************************
  //#define LWIP_DNS                        0
  //#define DNS_TABLE_SIZE                  4
  //#define DNS_MAX_NAME_LENGTH             256
  //#define DNS_MAX_SERVERS                 2
  //#define DNS_DOES_NAME_CHECK             1
  //#define DNS_USES_STATIC_BUF             1
  //#define DNS_MSG_SIZE                    512
  
  //*****************************************************************************
  //
  // ---------- UDP options ----------
  //
  //*****************************************************************************
  //#define LWIP_UDP                        1
  //#define LWIP_UDPLITE                    0
  //#define UDP_TTL                         (IP_DEFAULT_TTL)
  
  //*****************************************************************************
  //
  // ---------- TCP options ----------
  //
  //*****************************************************************************
  //#define LWIP_TCP                        1
  //#define TCP_TTL                         (IP_DEFAULT_TTL)
  #define TCP_WND                         4096        // default is 2048
  //#define TCP_MAXRTX                      12
  //#define TCP_SYNMAXRTX                   6
  //#define TCP_QUEUE_OOSEQ                 1
  #define TCP_MSS                         1500        // default is 128
  //#define TCP_CALCULATE_EFF_SEND_MSS      1
  #define TCP_SND_BUF                     (6 * TCP_MSS)
                                                      // default is 256
  //#define TCP_SND_QUEUELEN                (4 * (TCP_SND_BUF/TCP_MSS))
  //#define TCP_SNDLOWAT                    (TCP_SND_BUF/2)
  //#define TCP_LISTEN_BACKLOG              0
  //#define TCP_DEFAULT_LISTEN_BACKLOG      0xff
  
  //*****************************************************************************
  //
  // ---------- API options ----------
  //
  //*****************************************************************************
  //#define LWIP_EVENT_API                  0
  //#define LWIP_CALLBACK_API               1
  
  //*****************************************************************************
  //
  // ---------- Pbuf options ----------
  //
  //*****************************************************************************
  #define PBUF_LINK_HLEN                  16          // default is 14
  #define PBUF_POOL_BUFSIZE               256
                                                      // default is LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_HLEN)
  #define ETH_PAD_SIZE                    2           // default is 0
  
  //*****************************************************************************
  //
  // ---------- Network Interfaces options ----------
  //
  //*****************************************************************************
  //#define LWIP_NETIF_HOSTNAME             0
  //#define LWIP_NETIF_API                  0
  //#define LWIP_NETIF_STATUS_CALLBACK      0
  //#define LWIP_NETIF_LINK_CALLBACK        0
  //#define LWIP_NETIF_HWADDRHINT           0
  
  //*****************************************************************************
  //
  // ---------- LOOPIF options ----------
  //
  //*****************************************************************************
  //#define LWIP_HAVE_LOOPIF                0
  //#define LWIP_LOOPIF_MULTITHREADING      1
  
  //*****************************************************************************
  //
  // ---------- Thread options ----------
  //
  //*****************************************************************************
  //#define TCPIP_THREAD_NAME              "tcpip_thread"
  //#define TCPIP_THREAD_STACKSIZE          0
  //#define TCPIP_THREAD_PRIO               1
  //#define TCPIP_MBOX_SIZE                 0
  //#define SLIPIF_THREAD_NAME             "slipif_loop"
  //#define SLIPIF_THREAD_STACKSIZE         0
  //#define SLIPIF_THREAD_PRIO              1
  //#define PPP_THREAD_NAME                "pppMain"
  //#define PPP_THREAD_STACKSIZE            0
  //#define PPP_THREAD_PRIO                 1
  //#define DEFAULT_THREAD_NAME            "lwIP"
  //#define DEFAULT_THREAD_STACKSIZE        0
  //#define DEFAULT_THREAD_PRIO             1
  //#define DEFAULT_RAW_RECVMBOX_SIZE       0
  //#define DEFAULT_UDP_RECVMBOX_SIZE       0
  //#define DEFAULT_TCP_RECVMBOX_SIZE       0
  //#define DEFAULT_ACCEPTMBOX_SIZE         0
  
  //*****************************************************************************
  //
  // ---------- Sequential layer options ----------
  //
  //*****************************************************************************
  //#define LWIP_TCPIP_CORE_LOCKING         0
  #define LWIP_NETCONN                    0           // default is 1
  
  //*****************************************************************************
  //
  // ---------- Socket Options ----------
  //
  //*****************************************************************************
  #define LWIP_SOCKET                     0           // default is 1
  //#define LWIP_COMPAT_SOCKETS             1
  //#define LWIP_POSIX_SOCKETS_IO_NAMES     1
  //#define LWIP_TCP_KEEPALIVE              0
  //#define LWIP_SO_RCVTIMEO                0
  //#define LWIP_SO_RCVBUF                  0
  //#define SO_REUSE                        0
  
  //*****************************************************************************
  //
  // ---------- Statistics options ----------
  //
  //*****************************************************************************
  //#define LWIP_STATS                      1
  //#define LWIP_STATS_DISPLAY              0
  //#define LINK_STATS                      1
  //#define ETHARP_STATS                    (LWIP_ARP)
  //#define IP_STATS                        1
  //#define IPFRAG_STATS                    (IP_REASSEMBLY || IP_FRAG)
  //#define ICMP_STATS                      1
  //#define IGMP_STATS                      (LWIP_IGMP)
  //#define UDP_STATS                       (LWIP_UDP)
  //#define TCP_STATS                       (LWIP_TCP)
  //#define MEM_STATS                       1
  //#define MEMP_STATS                      1
  //#define SYS_STATS                       1
  
  //*****************************************************************************
  //
  // ---------- PPP options ----------
  //
  //*****************************************************************************
  //#define PPP_SUPPORT                     0
  //#define PPPOE_SUPPORT                   0
  //#define PPPOS_SUPPORT                   PPP_SUPPORT
  
  #if PPP_SUPPORT
  //#define NUM_PPP                         1
  //#define PAP_SUPPORT                     0
  //#define CHAP_SUPPORT                    0
  //#define MSCHAP_SUPPORT                  0
  //#define CBCP_SUPPORT                    0
  //#define CCP_SUPPORT                     0
  //#define VJ_SUPPORT                      0
  //#define MD5_SUPPORT                     0
  //#define FSM_DEFTIMEOUT                  6
  //#define FSM_DEFMAXTERMREQS              2
  //#define FSM_DEFMAXCONFREQS              10
  //#define FSM_DEFMAXNAKLOOPS              5
  //#define UPAP_DEFTIMEOUT                 6
  //#define UPAP_DEFREQTIME                 30
  //#define CHAP_DEFTIMEOUT                 6
  //#define CHAP_DEFTRANSMITS               10
  //#define LCP_ECHOINTERVAL                0
  //#define LCP_MAXECHOFAILS                3
  //#define PPP_MAXIDLEFLAG                 100
  
  //#define PPP_MAXMTU                      1500
  //#define PPP_DEFMRU                      296
  #endif
  
  //*****************************************************************************
  //
  // ---------- checksum options ----------
  //
  //*****************************************************************************
  //#define CHECKSUM_GEN_IP                 1
  //#define CHECKSUM_GEN_UDP                1
  //#define CHECKSUM_GEN_TCP                1
  //#define CHECKSUM_CHECK_IP               1
  //#define CHECKSUM_CHECK_UDP              1
  //#define CHECKSUM_CHECK_TCP              1
  
  //*****************************************************************************
  //
  // ---------- Debugging options ----------
  //
  //*****************************************************************************
  #if 0
  #define U8_F "c"
  #define S8_F "c"
  #define X8_F "x"
  #define U16_F "u"
  #define S16_F "d"
  #define X16_F "x"
  #define U32_F "u"
  #define S32_F "d"
  #define X32_F "x"
  extern void UARTprintf(const char *pcString, ...);
  #define LWIP_DEBUG
  #endif
  
  //#define LWIP_DBG_MIN_LEVEL              LWIP_DBG_LEVEL_OFF
  #define LWIP_DBG_MIN_LEVEL              LWIP_DBG_LEVEL_OFF
  //#define LWIP_DBG_MIN_LEVEL              LWIP_DBG_LEVEL_WARNING
  //#define LWIP_DBG_MIN_LEVEL              LWIP_DBG_LEVEL_SERIOUS
  //#define LWIP_DBG_MIN_LEVEL              LWIP_DBG_LEVEL_SEVERE
  
  //#define LWIP_DBG_TYPES_ON               LWIP_DBG_ON
  #define LWIP_DBG_TYPES_ON               (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH)
  
  //#define ETHARP_DEBUG                    LWIP_DBG_ON     // default is OFF
  //#define NETIF_DEBUG                     LWIP_DBG_ON     // default is 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 IGMP_DEBUG                      LWIP_DBG_OFF
  //#define INET_DEBUG                      LWIP_DBG_OFF
  //#define IP_DEBUG                        LWIP_DBG_ON     // default is 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_FR_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_OUTPUT_DEBUG                LWIP_DBG_OFF
  //#define TCP_RST_DEBUG                   LWIP_DBG_OFF
  //#define TCP_QLEN_DEBUG                  LWIP_DBG_OFF
  //#define UDP_DEBUG                       LWIP_DBG_ON     // default is OFF
  //#define TCPIP_DEBUG                     LWIP_DBG_OFF
  //#define PPP_DEBUG                       LWIP_DBG_OFF
  //#define SLIP_DEBUG                      LWIP_DBG_OFF
  //#define DHCP_DEBUG                      LWIP_DBG_ON     // default is OFF
  //#define AUTOIP_DEBUG                    LWIP_DBG_OFF
  //#define SNMP_MSG_DEBUG                  LWIP_DBG_OFF
  //#define SNMP_MIB_DEBUG                  LWIP_DBG_OFF
  //#define DNS_DEBUG                       LWIP_DBG_OFF
  
  #endif /* __LWIPOPTS_H__ */
  