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/*
* Copyright (c) 2013, 2015 Czech Technical University in Prague
* Czech Republic
*
* 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.
*
* Author: Premysl Houdek <houdepre@fel.cvut.cz>
* Mentor: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Industrial Informatics Group, FEE, Czech Technical University in Prague
*
* Based on work of Carlos Jenkins, Rostislav Lisovy, Jan Dolezal
*/
//#define DEBUG 1
#include "lwip/tcpip.h" /* includes - lwip/opt.h, lwip/api_msg.h, lwip/netifapi.h, lwip/pbuf.h, lwip/api.h, lwip/sys.h, lwip/timers.h, lwip/netif.h */
#include "lwip/stats.h"
#include "lwip/dhcp.h"
#include "lwip/netifapi.h"
#include "netif/etharp.h" /* includes - lwip/ip.h, lwip/netif.h, lwip/ip_addr.h, lwip/pbuf.h */
#include "eth_lwip_default.h"
#include "eth_lwip.h"
#include "tms570_netif.h"
#include <stdio.h>
/* The lwIP network interface structure for the Ethernet EMAC. */
#ifndef MAX_EMAC_INSTANCE
#define MAX_EMAC_INSTANCE 1
#endif /*MAX_EMAC_INSTANCE*/
#define SUCCESS ERR_OK
#define FAILURE ERR_IF
static struct netif eth_lwip_netifs[MAX_EMAC_INSTANCE];
static void eth_lwip_conv_IP_decimal_Str(ip_addr_t ip, uint8_t *ipStr);
void
eth_lwip_get_dhcp_info(void)
{
struct netif *netif = eth_lwip_get_netif(0);
if (dhcp_supplied_address(netif)) {
uint8_t ipString[16]; // FIXME change the functions to use char
eth_lwip_conv_IP_decimal_Str(netif->ip_addr, ipString);
printf("Address: %s\n", ipString);
eth_lwip_conv_IP_decimal_Str(netif->netmask, ipString);
printf("Netmask: %s\n", ipString);
eth_lwip_conv_IP_decimal_Str(netif->gw, ipString);
printf("Gateway: %s\n", ipString);
} else {
printf("dhcp not bound\n");
}
}
int8_t
eth_lwip_init(uint8_t *mac_addr)
{
unsigned int instance_number = 0;
int8_t retVal = SUCCESS;
ip4_addr_t ip_addr;
ip4_addr_t net_mask;
ip4_addr_t gw_addr;
struct netif *netif = ð_lwip_netifs[instance_number];
struct netif *netif_tmp;
u8_t default_mac[MAC_ADDR_LEN] = ETH_MAC_ADDR;
if (mac_addr == NULL)
mac_addr = default_mac; /* use default MAC */
eth_lwip_set_hwaddr(netif, mac_addr);
tcpip_init(NULL, NULL);
#if STATIC_IP_ADDRESS
ip_addr.addr = htonl(ETH_IP_ADDR);
net_mask.addr = htonl(ETH_NETMASK);
gw_addr.addr = htonl(ETH_GW);
#else
ip_addr.addr = 0;
net_mask.addr = 0;
gw_addr.addr = 0;
#endif
netif_tmp = netif_add(netif, &ip_addr, &net_mask, &gw_addr,
NULL, ETH_LWIP_INIT_NETIF_FNC, tcpip_input);
if (netif_tmp == NULL)
return NETIF_ADD_ERR;
netif_set_default(netif);
netifapi_netif_set_up(netif);
#if !STATIC_IP_ADDRESS
netifapi_dhcp_start(netif);
#endif
return retVal;
}
int
eth_lwip_get_netif_status_cmd(int argc, char *arg[])
{
stats_display();
return 0;
}
struct netif *
eth_lwip_get_netif(uint32_t instance_number)
{
if (instance_number >= MAX_EMAC_INSTANCE)
return NULL;
return ð_lwip_netifs[instance_number];
}
static void
eth_lwip_conv_IP_decimal_Str(ip_addr_t ip, uint8_t *ipStr)
{
uint32_t addr;
#if LWIP_IPV6
addr = ip.u_addr.ip4.addr;
#else
addr = ip.addr;
#endif
snprintf((char *)ipStr, 16, "%lu.%lu.%lu.%lu",
(addr >> 24), ((addr >> 16) & 0xff), ((addr >> 8) & 0xff), (addr & 0xff));
}
/*
* Function to set the MAC address to the interface
* @param inst_num the instance number
*
* @note mac_addr[0] is considered MSB
*/
void
eth_lwip_set_hwaddr(struct netif *netif, uint8_t *mac_addr)
{
int i;
/* set MAC hardware address */
for (i = 0; i < MAC_ADDR_LEN; i++) {
netif->hwaddr[i] = mac_addr[i];
}
netif->hwaddr_len = MAC_ADDR_LEN;
#ifdef DEBUG
uint8_t macStr[18];
eth_lwip_get_hwaddr_str(netif, macStr);
printf("Setting MAC... %s\r\n", macStr);
#endif
}
void
eth_lwip_get_hwaddr_str(struct netif *netif, uint8_t *macStr)
{
uint8_t index, outindex = 0;
char ch;
for (index = 0; index < netif->hwaddr_len; index++) {
if (index)
macStr[outindex++] = ':';
ch = (netif->hwaddr[index] >> 4);
macStr[outindex++] = (ch < 10) ? (ch + '0') : (ch - 10 + 'A');
ch = (netif->hwaddr[index] & 0xf);
macStr[outindex++] = (ch < 10) ? (ch + '0') : (ch - 10 + 'A');
}
macStr[outindex] = 0;
}
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