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Working from-source IP stack

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This commit is contained in:
Angus Gratton 2015-05-21 12:06:55 +10:00
parent e4bc8fab7a
commit df9e9bf9a4
4 changed files with 71 additions and 34 deletions
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2
examples/http_get/main.c
View file

@ -116,7 +116,7 @@ void user_init(void)
};
/* required to call wifi_set_opmode before station_set_config */
wifi_set_opmode(STATIONAP_MODE);
wifi_set_opmode(STATION_MODE);
wifi_station_set_config(&config);
xTaskCreate(&http_get_task, (signed char *)"get_task", 256, NULL, 2, NULL);

88
lwip/esp_interface.c
View file

@ -1,7 +1,42 @@
/* LWIP interface to the ESP SDK MAC layer
/* LWIP interface to the ESP WLAN MAC layer driver.
These two symbols are called from libnet80211.a
*/
Based on the sample driver in ethernetif.c. Tweaks based on
examining esp-lwip eagle_if.c and observed behaviour of the ESP
RTOS liblwip.a.
libnet80211.a calls into ethernetif_init & ethernetif_input.
* 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.
*
* Original Author: Simon Goldschmidt
* Modified by Angus Gratton based on work by @kadamski/Espressif via esp-lwip project.
*/
#include "lwip/opt.h"
#include "lwip/def.h"
@ -10,11 +45,9 @@
#include <lwip/stats.h>
#include <lwip/snmp.h>
#include "netif/etharp.h"
#include "netif/ppp_oe.h"
/* declared in libnet80211.a */
int8_t ieee80211_output_pbuf(struct netif *ifp, struct pbuf* pb);
//sint8 ieee80211_output_pbuf(struct ieee80211_conn *conn, esf_buf *eb);
static err_t
low_level_output(struct netif *netif, struct pbuf *p)
@ -47,18 +80,17 @@ err_t ethernetif_init(struct netif *netif)
*/
NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, LINK_SPEED_OF_YOUR_NETIF_IN_BPS);
//netif->state = (void *)0xDEADBEEF; /* this appears unused by esp layer */
// don't touch netif->state here, the field is used internally in the ESP SDK layers
netif->name[0] = 'e';
netif->name[1] = 'n';
netif->output = etharp_output;
/* NB: in the SDK there's a static wrapper function to this, not sure what it does!! */
netif->linkoutput = low_level_output;
/* low level init components */
/* low_level_init components */
netif->hwaddr_len = 6;
/* hwaddr seems to be set elsewhere, or (more likely) is per-packet by MAC layer */
/* hwaddr seems to be set elsewhere, or (more likely) is set on tx by MAC layer */
netif->mtu = 1500;
netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
netif->flags = NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
return ERR_OK;
}
@ -69,22 +101,24 @@ void ethernetif_input(struct netif *netif, struct pbuf *p)
struct eth_hdr *ethhdr = p->payload;
/* examine packet payloads ethernet header */
switch (htons(ethhdr->type)) {
/* IP or ARP packet? */
case ETHTYPE_IP:
case ETHTYPE_ARP:
// case ETHTYPE_IPV6:
/* full packet send to tcpip_thread to process */
if (netif->input(p, netif)!=ERR_OK)
{ LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
pbuf_free(p);
p = NULL;
}
break;
default:
pbuf_free(p);
p = NULL;
break;
}
switch(htons(ethhdr->type)) {
/* IP or ARP packet? */
case ETHTYPE_IP:
case ETHTYPE_ARP:
// case ETHTYPE_IPV6:
/* full packet send to tcpip_thread to process */
if (netif->input(p, netif)!=ERR_OK)
{
LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
pbuf_free(p);
p = NULL;
}
break;
default:
pbuf_free(p);
p = NULL;
break;
}
}

12
lwip/include/arch/cc.h
View file

@ -63,12 +63,12 @@ typedef int sys_prot_t;
/* Define (sn)printf formatters for these lwIP types */
#define X8_F "02x"
#define U16_F "hu"
#define S16_F "hd"
#define X16_F "hx"
#define U32_F "lu"
#define S32_F "ld"
#define X32_F "lx"
#define U16_F "u"
#define S16_F "d"
#define X16_F "x"
#define U32_F "u"
#define S32_F "d"
#define X32_F "x"
#define SZT_F U32_F
/* Compiler hints for packing structures */

3
lwip/include/lwipopts.h
View file

@ -38,6 +38,9 @@
#define EBUF_LWIP 1
#define ESP_TIMEWAIT_THRESHOLD 10000
// Uncomment this line, and set the debug options you want below, for IP stack debug output
//#define LWIP_DEBUG
/*
-----------------------------------------------
---------- Platform specific locking ----------