1 #ifndef __LWIPOPTS_H__ 2 #define __LWIPOPTS_H__ 3 4 /** 5 * NO_SYS==1: Bare metal lwIP 6 */ 7 #define NO_SYS 1 8 /** 9 * LWIP_NETCONN==0: Disable Netconn API (require to use api_lib.c) 10 */ 11 #define LWIP_NETCONN 0 12 /** 13 * LWIP_SOCKET==0: Disable Socket API (require to use sockets.c) 14 */ 15 #define LWIP_SOCKET 0 16 17 /** 18 * SYS_LIGHTWEIGHT_PROT==1: enable inter-task protection (and task-vs-interrupt 19 * protection) for certain critical regions during buffer allocation, deallocation 20 * and memory allocation and deallocation. 21 * ATTENTION: This is required when using lwIP from more than one context! If 22 * you disable this, you must be sure what you are doing! 23 */ 24 /** 25 * SYS_LIGHTWEIGHT_PROT==0: 26 */ 27 #define SYS_LIGHTWEIGHT_PROT 0 28 29 /* ---------- Memory options ---------- */ 30 /** 31 * MEM_ALIGNMENT: should be set to the alignment of the CPU 32 * 4 byte alignment -> #define MEM_ALIGNMENT 4 33 * 2 byte alignment -> #define MEM_ALIGNMENT 2 34 */ 35 #ifndef MEM_ALIGNMENT 36 #define MEM_ALIGNMENT 4 37 #endif 38 39 /** 40 * MEM_SIZE: the size of the heap memory. If the application will send 41 * a lot of data that needs to be copied, this should be set high. 42 */ 43 #ifndef MEM_SIZE 44 #define MEM_SIZE (22 * 1024) 45 #endif 46 47 /* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application 48 sends a lot of data out of ROM (or other static memory), this 49 should be set high. */ 50 #ifndef MEMP_NUM_PBUF 51 #define MEMP_NUM_PBUF 15 52 #endif 53 /* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One 54 per active UDP "connection". */ 55 #ifndef MEMP_NUM_UDP_PCB 56 #define MEMP_NUM_UDP_PCB 6 57 #endif 58 /* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP 59 connections. */ 60 #ifndef MEMP_NUM_TCP_PCB 61 #define MEMP_NUM_TCP_PCB 10 62 #endif 63 /* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP 64 connections. */ 65 #ifndef MEMP_NUM_TCP_PCB_LISTEN 66 #define MEMP_NUM_TCP_PCB_LISTEN 6 67 #endif 68 /* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP 69 segments. */ 70 #ifndef MEMP_NUM_TCP_SEG 71 #define MEMP_NUM_TCP_SEG 22 72 #endif 73 /* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active 74 timeouts. */ 75 #ifndef MEMP_NUM_SYS_TIMEOUT 76 #define MEMP_NUM_SYS_TIMEOUT 10 77 #endif 78 79 /* ---------- Pbuf options ---------- */ 80 /* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */ 81 #ifndef PBUF_POOL_SIZE 82 #define PBUF_POOL_SIZE 9 83 #endif 84 85 /* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */ 86 /* Default value is defined in lwip\src\include\lwip\opt.h as 87 * LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN)*/ 88 89 /* ---------- TCP options ---------- */ 90 #ifndef LWIP_TCP 91 #define LWIP_TCP 1 92 #endif 93 94 #ifndef TCP_TTL 95 #define TCP_TTL 255 96 #endif 97 98 /* Controls if TCP should queue segments that arrive out of 99 order. Define to 0 if your device is low on memory. */ 100 #ifndef TCP_QUEUE_OOSEQ 101 #define TCP_QUEUE_OOSEQ 0 102 #endif 103 104 /* TCP Maximum segment size. */ 105 #ifndef TCP_MSS 106 #define TCP_MSS (1500 - 40) /* TCP_MSS = (Ethernet MTU - IP header size - TCP header size) */ 107 #endif 108 109 /* TCP sender buffer space (bytes). */ 110 #ifndef TCP_SND_BUF 111 #define TCP_SND_BUF (6 * TCP_MSS) // 2 112 #endif 113 114 /* TCP sender buffer space (pbufs). This must be at least = 2 * 115 TCP_SND_BUF/TCP_MSS for things to work. */ 116 #ifndef TCP_SND_QUEUELEN 117 #define TCP_SND_QUEUELEN (3 * TCP_SND_BUF) / TCP_MSS // 6 118 #endif 119 120 /* TCP receive window. */ 121 #ifndef TCP_WND 122 #define TCP_WND (2 * TCP_MSS) 123 #endif 124 125 /* Enable backlog*/ 126 #ifndef TCP_LISTEN_BACKLOG 127 #define TCP_LISTEN_BACKLOG 1 128 #endif 129 130 /* ---------- Network Interfaces options ---------- */ 131 /* Support netif api (in netifapi.c). */ 132 #ifndef LWIP_NETIF_API 133 #define LWIP_NETIF_API 0 134 #endif 135 136 /* ---------- ICMP options ---------- */ 137 #ifndef LWIP_ICMP 138 #define LWIP_ICMP 1 139 #endif 140 141 /* ---------- DHCP options ---------- */ 142 /* Define LWIP_DHCP to 1 if you want DHCP configuration of 143 interfaces. DHCP is not implemented in lwIP 0.5.1, however, so 144 turning this on does currently not work. */ 145 #ifndef LWIP_DHCP 146 #define LWIP_DHCP 1 147 #endif 148 149 /* ---------- UDP options ---------- */ 150 #ifndef LWIP_UDP 151 #define LWIP_UDP 1 152 #endif 153 #ifndef UDP_TTL 154 #define UDP_TTL 255 155 #endif 156 157 /* ---------- Statistics options ---------- */ 158 #ifndef LWIP_STATS 159 #define LWIP_STATS 0 160 #endif 161 #ifndef LWIP_PROVIDE_ERRNO 162 #define LWIP_PROVIDE_ERRNO 1 163 #endif 164 165 /* 166 -------------------------------------- 167 ---------- Checksum options ---------- 168 -------------------------------------- 169 */ 170 171 /* 172 Some MCU allow computing and verifying the IP, UDP, TCP and ICMP checksums by hardware: 173 - To use this feature let the following define uncommented. 174 - To disable it and process by CPU comment the the checksum. 175 */ 176 //#define CHECKSUM_BY_HARDWARE 177 178 #ifdef CHECKSUM_BY_HARDWARE 179 /* CHECKSUM_GEN_IP==0: Generate checksums by hardware for outgoing IP packets.*/ 180 #define CHECKSUM_GEN_IP 0 181 /* CHECKSUM_GEN_UDP==0: Generate checksums by hardware for outgoing UDP packets.*/ 182 #define CHECKSUM_GEN_UDP 0 183 /* CHECKSUM_GEN_TCP==0: Generate checksums by hardware for outgoing TCP packets.*/ 184 #define CHECKSUM_GEN_TCP 0 185 /* CHECKSUM_CHECK_IP==0: Check checksums by hardware for incoming IP packets.*/ 186 #define CHECKSUM_CHECK_IP 0 187 /* CHECKSUM_CHECK_UDP==0: Check checksums by hardware for incoming UDP packets.*/ 188 #define CHECKSUM_CHECK_UDP 0 189 /* CHECKSUM_CHECK_TCP==0: Check checksums by hardware for incoming TCP packets.*/ 190 #define CHECKSUM_CHECK_TCP 0 191 #else 192 /* CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets.*/ 193 #define CHECKSUM_GEN_IP 1 194 /* CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets.*/ 195 #define CHECKSUM_GEN_UDP 1 196 /* CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets.*/ 197 #define CHECKSUM_GEN_TCP 1 198 /* CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets.*/ 199 #define CHECKSUM_CHECK_IP 1 200 /* CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets.*/ 201 #define CHECKSUM_CHECK_UDP 1 202 /* CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets.*/ 203 #define CHECKSUM_CHECK_TCP 1 204 #endif 205 206 /* 207 ------------------------------------ 208 ---------- Debugging options ---------- 209 ------------------------------------ 210 */ 211 212 // #define LWIP_DEBUG 213 214 // TODO: map these to <stdint.h> 215 216 #ifdef LWIP_DEBUG 217 #define U8_F "c" 218 #define S8_F "c" 219 #define X8_F "02x" 220 #define U16_F "u" 221 #define S16_F "d" 222 #define X16_F "x" 223 #define U32_F "u" 224 #define S32_F "d" 225 #define X32_F "x" 226 #define SZT_F "u" 227 #endif 228 229 #if (LWIP_DNS || LWIP_IGMP || LWIP_IPV6) && !defined(LWIP_RAND) 230 /* When using IGMP or IPv6, LWIP_RAND() needs to be defined to a random-function returning an u32_t random value*/ 231 #include "lwip/arch.h" 232 u32_t lwip_rand(void); 233 #define LWIP_RAND() lwip_rand() 234 #endif 235 236 #endif /* __LWIPOPTS_H__ */ 237 238 /*****END OF FILE****/ 239