src/platform/bouffalolab/BL702/EthernetInterface.c

/*
 *    Copyright (c) 2022 Project CHIP Authors
 *    All rights reserved.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

#include <eth_bd.h>
#include <lwip/dhcp6.h>
#include <lwip/netifapi.h>

#include "EthernetInterface.h"
static struct dhcp6 dhcp6_val;

extern int8_t bl_route_hook_init(void);

static void netif_status_callback(struct netif * netif)
{
    if (netif->flags & NETIF_FLAG_UP)
    {
        for (uint32_t i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++)
        {
            if (!ip6_addr_isany(netif_ip6_addr(netif, i)) && ip6_addr_ispreferred(netif_ip6_addr_state(netif, i)))
            {

                const ip6_addr_t * ip6addr = netif_ip6_addr(netif, i);
                if (ip6_addr_isany(ip6addr) || ip6_addr_islinklocal(ip6addr))
                {
                    continue;
                }

                ethernetInterface_eventGotIP(netif);
                break;
            }
        }
    }
}

static int ethernet_callback(eth_link_state val)
{
    switch (val)
    {
    case ETH_INIT_STEP_LINKUP:
        break;
    case ETH_INIT_STEP_READY:
        netifapi_netif_set_default(&eth_mac);
        netifapi_netif_set_up(&eth_mac);

        // netifapi_netif_set_up((struct netif *)&obj->netif);
        netif_create_ip6_linklocal_address(&eth_mac, 1);
        eth_mac.ip6_autoconfig_enabled = 1;
        dhcp6_set_struct(&eth_mac, &dhcp6_val);
        dhcp6_enable_stateless(&eth_mac);

        /* start dhcp */
        netifapi_dhcp_start(&eth_mac);
        break;
    case ETH_INIT_STEP_LINKDOWN:
        break;
    }

    return 0;
}

void ethernetInterface_init(void)
{
    netif_add(&eth_mac, NULL, NULL, NULL, NULL, eth_init, ethernet_input);

    ethernet_init(ethernet_callback);

    /* Set callback to be called when interface is brought up/down or address is changed while up */
    netif_set_status_callback(&eth_mac, netif_status_callback);

    bl_route_hook_init();
}

struct netif * deviceInterface_getNetif(void)
{
    return &eth_mac;
}