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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2025 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_LWIPOPTS_COMMON_H
#define MICROPY_INCLUDED_LWIPOPTS_COMMON_H
#include "py/mpconfig.h"
// This is needed to access `next_timeout` via `sys_timeouts_get_next_timeout()`.
#define LWIP_TESTMODE 1
// This sys-arch protection is not needed.
// Ports either protect lwIP code with flags, or run it at PendSV priority.
#define SYS_ARCH_DECL_PROTECT(lev) do { } while (0)
#define SYS_ARCH_PROTECT(lev) do { } while (0)
#define SYS_ARCH_UNPROTECT(lev) do { } while (0)
#define NO_SYS 1
#define SYS_LIGHTWEIGHT_PROT 1
#define MEM_ALIGNMENT 4
#define LWIP_CHKSUM_ALGORITHM 3
#define LWIP_CHECKSUM_CTRL_PER_NETIF 1
#define LWIP_ARP 1
#define LWIP_ETHERNET 1
#define LWIP_RAW 1
#define LWIP_NETCONN 0
#define LWIP_SOCKET 0
#define LWIP_STATS 0
#define LWIP_NETIF_HOSTNAME 1
#define LWIP_DHCP 1
#define LWIP_DHCP_CHECK_LINK_UP 1
#define LWIP_DHCP_DOES_ACD_CHECK 0 // to speed DHCP up
#define LWIP_DNS 1
#define LWIP_DNS_SUPPORT_MDNS_QUERIES 1
#define LWIP_MDNS_RESPONDER 1
#define LWIP_IGMP 1
#if MICROPY_PY_LWIP_PPP
#define PPP_SUPPORT 1
#define PAP_SUPPORT 1
#define CHAP_SUPPORT 1
#endif
#define LWIP_NUM_NETIF_CLIENT_DATA LWIP_MDNS_RESPONDER
#define MEMP_NUM_UDP_PCB (4 + LWIP_MDNS_RESPONDER)
// The mDNS responder requires 5 timers per IP version plus 2 others. Not having enough silently breaks it.
#define MEMP_NUM_SYS_TIMEOUT (LWIP_NUM_SYS_TIMEOUT_INTERNAL + (LWIP_MDNS_RESPONDER * (2 + (5 * (LWIP_IPV4 + LWIP_IPV6)))))
#define SO_REUSE 1
#define TCP_LISTEN_BACKLOG 1
// TCP memory settings.
// Default lwIP settings takes 15800 bytes; TCP d/l: 380k/s local, 7.2k/s remote; TCP u/l is very slow.
#ifndef MEM_SIZE
#if 0
// lwIP takes 19159 bytes; TCP d/l and u/l are around 320k/s on local network.
#define MEM_SIZE (5000)
#define TCP_WND (4 * TCP_MSS)
#define TCP_SND_BUF (4 * TCP_MSS)
#endif
#if 1
// lwIP takes 26700 bytes; TCP dl/ul are around 750/600 k/s on local network.
#define MEM_SIZE (8000)
#define TCP_MSS (800)
#define TCP_WND (8 * TCP_MSS)
#define TCP_SND_BUF (8 * TCP_MSS)
#define MEMP_NUM_TCP_SEG (32)
#endif
#if 0
// lwIP takes 45600 bytes; TCP dl/ul are around 1200/1000 k/s on local network.
#define MEM_SIZE (16000)
#define TCP_MSS (1460)
#define TCP_WND (8 * TCP_MSS)
#define TCP_SND_BUF (8 * TCP_MSS)
#define MEMP_NUM_TCP_SEG (32)
#endif
#endif // MEM_SIZE
// Needed for PPP.
#define sys_jiffies sys_now
typedef uint32_t sys_prot_t;
#endif // MICROPY_INCLUDED_LWIPOPTS_COMMON_H
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