ethernet_sam.c File Reference

Ethernet management for the standalone lwIP example.

Copyright (c) 2013-2018 Microchip Technology Inc. and its subsidiaries.

#include <string.h>
#include "board.h"
#include "ethernet_sam.h"
#include "gmac.h"
#include "ethernet_phy.h"
#include "timer_mgt_sam.h"
#include "sysclk.h"
#include "lwip/sys.h"
#include "lwip/api.h"
#include "lwip/tcp.h"
#include "lwip/tcpip.h"
#include "lwip/memp.h"
#include "lwip/dhcp.h"
#include "lwip/dns.h"
#include "lwip/stats.h"
#include "lwip/init.h"
#include "lwip/ip_frag.h"
#include "lwip/inet.h"
#include "lwip/tcp_impl.h"
#include "netif/etharp.h"
#include "netif/sam4e_gmac.h"
#include "httpd.h"

Data Structures
struct	timers_info
	Timer for calling lwIP tmr functions without system. More...

Macros
#define	TRACE_DEBUG(...)

Typedefs
typedef struct timers_info	timers_info_t
	Timer for calling lwIP tmr functions without system. More...

Functions
static void	ethernet_configure_interface (void)
	Set ethernet config. More...
void	ethernet_task (void)
	Periodically retrigger timeout process. More...
void	init_ethernet (void)
	Create ethernet task, for ethernet management. More...
void	status_callback (struct netif *netif)
	Status callback used to print address given by DHCP. More...
static void	timers_update (void)
	Process timing functions. More...

Variables
int8_t	g_c_ipconfig []
uint32_t	g_ip_mode
	IP mode: 0 unselected, 1 static, 2 dhcp. More...
struct netif	gs_net_if
	Global variable containing MAC Config (hw addr, IP, GW, ...) More...
static timers_info_t	gs_timers_table []
	LwIP tmr functions list. More...

#define TRACE_DEBUG

(

...

)

Referenced by ethernet_configure_interface(), and status_callback().

typedef struct timers_info timers_info_t

Timer for calling lwIP tmr functions without system.

static void ethernet_configure_interface ( void  )

static

Set ethernet config.

Default ip addr

Default subnet mask

Default gateway addr

Add data to netif

Make it the default interface

Setup callback function for netif status change

Bring it up

DHCP mode

Static mode

References ip_addr::addr, dhcp_start(), ERR_OK, ETHERNET_CONF_GATEWAY_ADDR0, ETHERNET_CONF_GATEWAY_ADDR1, ETHERNET_CONF_GATEWAY_ADDR2, ETHERNET_CONF_GATEWAY_ADDR3, ETHERNET_CONF_IPADDR0, ETHERNET_CONF_IPADDR1, ETHERNET_CONF_IPADDR2, ETHERNET_CONF_IPADDR3, ETHERNET_CONF_NET_MASK0, ETHERNET_CONF_NET_MASK1, ETHERNET_CONF_NET_MASK2, ETHERNET_CONF_NET_MASK3, ethernet_input(), ethernetif_init(), g_ip_mode, gs_net_if, IP4_ADDR, netif_add(), netif_set_default(), netif_set_status_callback(), netif_set_up(), NULL, status_callback(), and TRACE_DEBUG.

Referenced by init_ethernet().

void ethernet_task

(

void

)

Periodically retrigger timeout process.

Manage the ethernet packets, if any received process them.

After managing the lwIP timers. trigger corresponding ethernet process.

References ethernetif_input(), gs_net_if, and timers_update().

Referenced by webserver_task().

void init_ethernet

(

void

)

Create ethernet task, for ethernet management.

Initialize the ethernet interface.

Initialize lwIP

Set hw and IP parameters, initialize MAC too

Bring up the web server

References ethernet_configure_interface(), http_init(), and lwip_init().

Referenced by gfx_task().

void status_callback

(

struct netif *

netif

)

Status callback used to print address given by DHCP.

Parameters

netif

Instance to network interface.

References g_c_ipconfig, g_ip_mode, inet_ntoa, netif::ip_addr, netif_is_up, and TRACE_DEBUG.

Referenced by ethernet_configure_interface(), and netif_set_status_callback().

static void timers_update ( void  )

static

Process timing functions.

References gs_timers_table, sys_get_ms(), timers_info::timer, timers_info::timer_func, and timers_info::timer_interval.

Referenced by ethernet_task().

int8_t g_c_ipconfig[]

Referenced by gfx_task(), and status_callback().

uint32_t g_ip_mode

IP mode: 0 unselected, 1 static, 2 dhcp.

Referenced by ethernet_configure_interface(), event_handler(), gfx_task(), qtouch_task(), and status_callback().

struct netif gs_net_if

Global variable containing MAC Config (hw addr, IP, GW, ...)

Referenced by ethernet_configure_interface(), and ethernet_task().

timers_info_t gs_timers_table[]

static

Initial value:

= {
    {0, TCP_TMR_INTERVAL, tcp_tmr},
    {0, IP_TMR_INTERVAL, ip_reass_tmr},
    
    {0, ARP_TMR_INTERVAL, etharp_tmr},
    

    {0, DHCP_COARSE_TIMER_MSECS, dhcp_coarse_tmr},
    {0, DHCP_FINE_TIMER_MSECS, dhcp_fine_tmr},

}

LwIP tmr functions list.

Referenced by timers_update().