/*
 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
 * All rights reserved. 
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
 * SHALL THE AUTHOR 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.
 *
 * This file is part of the lwIP TCP/IP stack.
 * 
 * Author: Adam Dunkels <adam@sics.se>
 *
 */
#ifndef __LWIPOPTS_H__
#define __LWIPOPTS_H__

/* Functions used to obtain and release exclusive access to the Tx buffer.  The
Get function will block if the Tx buffer is not available - use with care! */
signed char *pcLwipBlockingGetTxBuffer( void );
void vLwipAppsReleaseTxBuffer( void );


/* SSI options. */
#define TCPIP_THREAD_NAME              "tcpip"
#define LWIP_HTTPD_MAX_TAG_NAME_LEN 20
#define LWIP_HTTPD_MAX_TAG_INSERT_LEN 1024
#define TCPIP_THREAD_PRIO configLWIP_TASK_PRIORITY
#define TCPIP_THREAD_STACKSIZE configMINIMAL_STACK_SIZE * 3

#define DEFAULT_TCP_RECVMBOX_SIZE 5
#define DEFAULT_ACCEPTMBOX_SIZE 5
#define TCPIP_MBOX_SIZE			 		10

#define NO_SYS							0
#define LWIP_SOCKET						(NO_SYS==0)
#define LWIP_NETCONN              		1

#define LWIP_SNMP						0
#define LWIP_IGMP						0
#define LWIP_ICMP						1

/* DNS is not going to be used as this is a simple local example. */
#define LWIP_DNS						0

#define LWIP_HAVE_LOOPIF				0
#define TCP_LISTEN_BACKLOG				0
#define LWIP_SO_RCVTIMEO		   		1
#define LWIP_SO_RCVBUF			 		1

#ifdef LWIP_DEBUG

#define LWIP_DBG_MIN_LEVEL         0
#define PPP_DEBUG                  LWIP_DBG_ON
#define MEM_DEBUG                  LWIP_DBG_ON
#define MEMP_DEBUG                 LWIP_DBG_ON
#define PBUF_DEBUG                 LWIP_DBG_ON
#define API_LIB_DEBUG              LWIP_DBG_ON
#define API_MSG_DEBUG              LWIP_DBG_ON
#define TCPIP_DEBUG                LWIP_DBG_ON
#define NETIF_DEBUG                LWIP_DBG_ON
#define SOCKETS_DEBUG              LWIP_DBG_ON
#define DNS_DEBUG                  LWIP_DBG_ON
#define AUTOIP_DEBUG               LWIP_DBG_ON
#define DHCP_DEBUG                 LWIP_DBG_ON
#define IP_DEBUG                   LWIP_DBG_ON
#define IP_REASS_DEBUG             LWIP_DBG_ON
#define ICMP_DEBUG                 LWIP_DBG_ON
#define IGMP_DEBUG                 LWIP_DBG_ON
#define UDP_DEBUG                  LWIP_DBG_ON
#define TCP_DEBUG                  LWIP_DBG_ON
#define TCP_INPUT_DEBUG            LWIP_DBG_ON
#define TCP_OUTPUT_DEBUG           LWIP_DBG_ON
#define TCP_RTO_DEBUG              LWIP_DBG_ON
#define TCP_CWND_DEBUG             LWIP_DBG_ON
#define TCP_WND_DEBUG              LWIP_DBG_ON
#define TCP_FR_DEBUG               LWIP_DBG_ON
#define TCP_QLEN_DEBUG             LWIP_DBG_ON
#define TCP_RST_DEBUG              LWIP_DBG_ON
#endif

#define LWIP_DBG_TYPES_ON         (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT)


/* ---------- 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. */
/* MSVC port: intel processors don't need 4-byte alignment,
   but are faster that way! */
#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				10240

/* 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			10

/* MEMP_NUM_RAW_PCB: the number of UDP protocol control blocks. One
   per active RAW "connection". */
#define LWIP_RAW				0
#define MEMP_NUM_RAW_PCB		0

/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
   per active UDP "connection". */
#define MEMP_NUM_UDP_PCB		2

/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP
   connections. */
#define MEMP_NUM_TCP_PCB		30

/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP
   connections. */
#define MEMP_NUM_TCP_PCB_LISTEN 2

/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP
   segments. */
#define MEMP_NUM_TCP_SEG		10

/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active
   timeouts. */
#define MEMP_NUM_SYS_TIMEOUT	15

/* The following four are used only with the sequential API and can be
   set to 0 if the application only will use the raw API. */
/* MEMP_NUM_NETBUF: the number of struct netbufs. */
#define MEMP_NUM_NETBUF         0

/* MEMP_NUM_NETCONN: the number of struct netconns. */
#define MEMP_NUM_NETCONN        10

/* MEMP_NUM_TCPIP_MSG_*: the number of struct tcpip_msg, which is used
   for sequential API communication and incoming packets. Used in
   src/api/tcpip.c. */
#define MEMP_NUM_TCPIP_MSG_API   4
#define MEMP_NUM_TCPIP_MSG_INPKT 4

#define MEMP_NUM_ARP_QUEUE		5

/* ---------- Pbuf options ---------- */
/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */
#define PBUF_POOL_SIZE			10

/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */
#define PBUF_POOL_BUFSIZE		375

/* PBUF_LINK_HLEN: the number of bytes that should be allocated for a
   link level header. */
#define PBUF_LINK_HLEN			16

/** SYS_LIGHTWEIGHT_PROT
 * define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection
 * for certain critical regions during buffer allocation, deallocation and memory
 * allocation and deallocation.
 */
#define SYS_LIGHTWEIGHT_PROT	(NO_SYS==0)


/* ---------- 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			1

/* TCP Maximum segment size. */
#define TCP_MSS					1460

/* TCP sender buffer space (bytes). */
#define TCP_SND_BUF				( TCP_MSS * 2 )

/* TCP sender buffer space (pbufs). This must be at least = 2 *
   TCP_SND_BUF/TCP_MSS for things to work. */
#define TCP_SND_QUEUELEN		(4 * TCP_SND_BUF/TCP_MSS)

/* TCP writable space (bytes). This must be less than or equal
   to TCP_SND_BUF. It is the amount of space which must be
   available in the tcp snd_buf for select to return writable */
#define TCP_SNDLOWAT			(TCP_SND_BUF/2)

/* TCP receive window. */
#define TCP_WND					( PBUF_POOL_SIZE * PBUF_POOL_BUFSIZE )

/* Maximum number of retransmissions of data segments. */
#define TCP_MAXRTX				12

/* Maximum number of retransmissions of SYN segments. */
#define TCP_SYNMAXRTX			4


/* ---------- ARP options ---------- */
#define LWIP_ARP				1
#define ARP_TABLE_SIZE			10
#define ARP_QUEUEING			1


/* ---------- IP options ---------- */
/* Define IP_FORWARD to 1 if you wish to have 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 reassembly and segmentation.These are orthogonal even
 * if they both deal with IP fragments */
#define IP_REASSEMBLY			0
#define IP_REASS_MAX_PBUFS		10
#define MEMP_NUM_REASSDATA		10
#define IP_FRAG					0


/* ---------- ICMP options ---------- */
#define ICMP_TTL				255


/* ---------- DHCP options ---------- */
/* Define LWIP_DHCP to 1 if you want DHCP configuration of
   interfaces. */
#define LWIP_DHCP				0

/* 1 if you want to do an ARP check on the offered address
   (recommended). */
#define DHCP_DOES_ARP_CHECK		(LWIP_DHCP)


/* ---------- AUTOIP options ------- */
#define LWIP_AUTOIP				0
#define LWIP_DHCP_AUTOIP_COOP	(LWIP_DHCP && LWIP_AUTOIP)


/* ---------- UDP options ---------- */
#define LWIP_UDP				1
#define LWIP_UDPLITE			1
#define UDP_TTL					255


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

#define LWIP_STATS				1
#define LWIP_STATS_DISPLAY		0

#if LWIP_STATS
	#define LINK_STATS				1
	#define IP_STATS				1
	#define ICMP_STATS				0
	#define IGMP_STATS				0
	#define IPFRAG_STATS			0
	#define UDP_STATS				1
	#define TCP_STATS				1
	#define MEM_STATS				1
	#define MEMP_STATS				1
	#define PBUF_STATS				1
	#define SYS_STATS				1
#endif /* LWIP_STATS */


/* ---------- PPP options ---------- */

#define PPP_SUPPORT			 0	  /* Set > 0 for PPP */

#if PPP_SUPPORT

	#define NUM_PPP					1	  /* Max PPP sessions. */

	/* Select modules to enable.  Ideally these would be set in the makefile but
	 * we're limited by the command line length so you need to modify the settings
	 * in this file.
	 */
	#define PPPOE_SUPPORT			1
	#define PPPOS_SUPPORT			1
	#define PAP_SUPPORT				1	  /* Set > 0 for PAP. */
	#define CHAP_SUPPORT			1	  /* Set > 0 for CHAP. */
	#define MSCHAP_SUPPORT			0	  /* Set > 0 for MSCHAP (NOT FUNCTIONAL!) */
	#define CBCP_SUPPORT			0	  /* Set > 0 for CBCP (NOT FUNCTIONAL!) */
	#define CCP_SUPPORT				0	  /* Set > 0 for CCP (NOT FUNCTIONAL!) */
	#define VJ_SUPPORT				1	  /* Set > 0 for VJ header compression. */
	#define MD5_SUPPORT				1	  /* Set > 0 for MD5 (see also CHAP) */

#endif /* PPP_SUPPORT */

#endif /* __LWIPOPTS_H__ */