246 lines
6.7 KiB
C
246 lines
6.7 KiB
C
/**
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* \file
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*
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* \brief Ethernet management for the standalone lwIP example.
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*
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* Copyright (c) 2012 Atmel Corporation. All rights reserved.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* 4. This software may only be redistributed and used in connection with an
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* Atmel microcontroller product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* \asf_license_stop
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*
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*/
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#include <string.h>
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//#include "board.h"
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//#include "gpio.h"
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#include "ethernet_sam.h"
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//#include "emac.h"
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#include "ethernet_phy.h"
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#include "timer_mgt_sam.h"
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//#include "sysclk.h"
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/* lwIP includes */
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#include "lwip/src/include/lwip/sys.h"
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#include "lwip/src/include/lwip/api.h"
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#include "lwip/src/include/lwip/tcp.h"
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#include "lwip/src/include/lwip/tcpip.h"
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#include "lwip/src/include/lwip/memp.h"
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#include "lwip/src/include/lwip/dhcp.h"
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#include "lwip/src/include/lwip/dns.h"
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#include "lwip/src/include/lwip/stats.h"
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#include "lwip/src/include/lwip/init.h"
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#include "lwip/src/include/ipv4/lwip/ip_frag.h"
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#if ( (LWIP_VERSION) == ((1U << 24) | (3U << 16) | (2U << 8) | (LWIP_VERSION_RC)) )
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#include "lwip/src/include/netif/loopif.h"
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#else
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#include "lwip/src/include/ipv4/lwip/inet.h"
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#include "lwip/src/include/lwip/tcp_impl.h"
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#endif
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#include "lwip/src/include/netif/etharp.h"
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#include "lwip/src/sam/include/netif/ethernetif.h"
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#if defined(HTTP_RAW_USED)
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#include "httpd.h"
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#endif
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#include "lwip_test.h"
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/* Global variable containing MAC Config (hw addr, IP, GW, ...) */
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struct netif gs_net_if;
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struct netif* GetConfiguration()
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{
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return &gs_net_if;
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}
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/* Timer for calling lwIP tmr functions without system */
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typedef struct timers_info {
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uint32_t timer;
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uint32_t timer_interval;
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void (*timer_func)(void);
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} timers_info_t;
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/* LwIP tmr functions list */
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static timers_info_t gs_timers_table[] = {
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{0, TCP_TMR_INTERVAL, tcp_tmr},
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{0, IP_TMR_INTERVAL, ip_reass_tmr},
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#if 0
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/* LWIP_TCP */
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{0, TCP_FAST_INTERVAL, tcp_fasttmr},
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{0, TCP_SLOW_INTERVAL, tcp_slowtmr},
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#endif
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/* LWIP_ARP */
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{0, ARP_TMR_INTERVAL, etharp_tmr},
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/* LWIP_DHCP */
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#if LWIP_DHCP
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{0, DHCP_COARSE_TIMER_SECS, dhcp_coarse_tmr},
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{0, DHCP_FINE_TIMER_MSECS, dhcp_fine_tmr},
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#endif
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};
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/**
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* \brief Process timing functions.
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*/
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static void timers_update(void)
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{
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static uint32_t ul_last_time;
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uint32_t ul_cur_time, ul_time_diff, ul_idx_timer;
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timers_info_t *p_tmr_inf;
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ul_cur_time = sys_get_ms();
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if (ul_cur_time >= ul_last_time) {
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ul_time_diff = ul_cur_time - ul_last_time;
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} else {
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ul_time_diff = 0xFFFFFFFF - ul_last_time + ul_cur_time;
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}
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if (ul_time_diff) {
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ul_last_time = ul_cur_time;
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for (ul_idx_timer = 0;
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ul_idx_timer < (sizeof(gs_timers_table) / sizeof(timers_info_t));
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ul_idx_timer++) {
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p_tmr_inf = &gs_timers_table[ul_idx_timer];
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p_tmr_inf->timer += ul_time_diff;
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if (p_tmr_inf->timer > p_tmr_inf->timer_interval) {
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if (p_tmr_inf->timer_func) {
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p_tmr_inf->timer_func();
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}
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p_tmr_inf->timer -= p_tmr_inf->timer_interval;
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}
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}
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}
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}
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/**
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* \brief Set ethernet config.
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*/
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//err_t ethernetif_init_(struct netif *netif){return ERR_OK;};
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//err_t ethernet_input_(struct pbuf *p, struct netif *netif){return ERR_OK;};
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static void ethernet_configure_interface(void)
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{
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struct ip_addr x_ip_addr, x_net_mask, x_gateway;
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extern err_t ethernetif_init(struct netif *netif);
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#if defined(DHCP_USED)
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x_ip_addr.addr = 0;
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x_net_mask.addr = 0;
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#else
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/* Default ip addr */
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IP4_ADDR(&x_ip_addr, ETHERNET_CONF_IPADDR0, ETHERNET_CONF_IPADDR1, ETHERNET_CONF_IPADDR2, ETHERNET_CONF_IPADDR3);
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/* Default subnet mask */
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IP4_ADDR(&x_net_mask, ETHERNET_CONF_NET_MASK0, ETHERNET_CONF_NET_MASK1, ETHERNET_CONF_NET_MASK2, ETHERNET_CONF_NET_MASK3);
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/* Default gateway addr */
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IP4_ADDR(&x_gateway, ETHERNET_CONF_GATEWAY_ADDR0, ETHERNET_CONF_GATEWAY_ADDR1, ETHERNET_CONF_GATEWAY_ADDR2, ETHERNET_CONF_GATEWAY_ADDR3);
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#endif
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/* Add data to netif */
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netif_add(&gs_net_if, &x_ip_addr, &x_net_mask, &x_gateway, NULL,
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ethernetif_init, ethernet_input);
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/* Make it the default interface */
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netif_set_default(&gs_net_if);
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/* Setup callback function for netif status change */
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netif_set_status_callback(&gs_net_if, status_callback);
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/* Bring it up */
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#if defined(DHCP_USED)
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printf("LwIP: DHCP Started");
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dhcp_start(&gs_net_if);
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#else
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// printf("LwIP: Static IP Address Assigned\r\n");
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netif_set_up(&gs_net_if);
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#endif
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}
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/** \brief Create ethernet task, for ethernet management.
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*
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*/
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void init_ethernet(void)
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{
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/* Initialize lwIP */
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lwip_init();
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/* Set hw and IP parameters, initialize MAC too */
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ethernet_configure_interface();
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/* Init timer service */
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sys_init_timing();
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#if defined(HTTP_RAW_USED)
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/* Bring up the web server */
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httpd_init();
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#endif
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}
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/**
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* \brief Status callback used to print address given by DHCP.
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*
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* \param netif Instance to network interface.
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*/
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void status_callback(struct netif *netif)
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{
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int8_t c_mess[25];
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if (netif_is_up(netif)) {
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// printf("Network up\r\n");
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// strcpy((char*)c_mess, "IP=");
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// strcat((char*)c_mess, inet_ntoa(*(struct in_addr *)&(netif->ip_addr)));
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// printf((char const*)c_mess);
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// printf("-----------------\r\n");
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netif->flags |=NETIF_FLAG_LINK_UP;
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} else {
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// printf("Network down\r\n");
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}
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}
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/**0
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* \brief Manage the Ethernet packets, if any received process them.
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* After processing any packets, manage the lwIP timers.
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*/
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//int HttpSend();
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void ethernet_task(void)
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{
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//HttpSend();
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/* Run polling tasks */
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ethernetif_input(&gs_net_if);
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/* Run periodic tasks */
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timers_update();
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}
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