mirror of
https://github.com/esp8266/Arduino.git
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96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
/*
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ESP8266WiFiGratuitous.cpp - esp8266 Wifi support
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copyright esp8266/arduino
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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extern "C"
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{
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#include "lwip/init.h" // LWIP_VERSION_*
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#if LWIP_VERSION_MAJOR == 1
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#include "netif/wlan_lwip_if.h" // eagle_lwip_getif()
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#include "netif/etharp.h" // gratuitous arp
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#include "user_interface.h"
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#else
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#include "lwip/etharp.h" // gratuitous arp
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#endif
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} // extern "C"
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#include <Schedule.h>
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#include "ESP8266WiFiGratuitous.h"
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namespace experimental
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{
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ETSTimer* ESP8266WiFiGratuitous::_timer = nullptr;
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void ESP8266WiFiGratuitous::stationKeepAliveNow ()
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{
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for (netif* interface = netif_list; interface != nullptr; interface = interface->next)
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if (
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(interface->flags & NETIF_FLAG_LINK_UP)
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&& (interface->flags & NETIF_FLAG_UP)
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#if LWIP_VERSION_MAJOR == 1
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&& interface == eagle_lwip_getif(STATION_IF) /* lwip1 does not set if->num properly */
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&& (!ip_addr_isany(&interface->ip_addr))
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#else
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&& interface->num == STATION_IF
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&& (!ip4_addr_isany_val(*netif_ip4_addr(interface)))
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#endif
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)
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{
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etharp_gratuitous(interface);
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break;
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}
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}
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void ESP8266WiFiGratuitous::scheduleItForNextYieldOnce (void*)
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{
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schedule_recurrent_function_us([]()
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{
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ESP8266WiFiGratuitous::stationKeepAliveNow();
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return false;
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}, 0);
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}
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bool ESP8266WiFiGratuitous::stationKeepAliveSetIntervalMs (uint32_t ms)
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{
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if (_timer)
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{
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os_timer_disarm(_timer);
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free(_timer);
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_timer = nullptr;
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}
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if (ms)
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{
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// send one now
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stationKeepAliveNow();
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_timer = (ETSTimer*)malloc(sizeof(ETSTimer));
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if (_timer == nullptr)
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return false;
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os_timer_setfn(_timer, ESP8266WiFiGratuitous::scheduleItForNextYieldOnce, nullptr);
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os_timer_arm(_timer, ms, true);
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}
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return true;
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}
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}; // experimental::
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