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extern "C" {
#include "utility/debug.h"
#include "utility/wifi_spi.h"
}
#include <string.h>
#include "server_drv.h"
#include "wifi_drv.h"
#include "WiFi.h"
#include "WiFiUdp.h"
#include "WiFiClient.h"
#include "WiFiServer.h"
/* Constructor */
WiFiUDP::WiFiUDP() : _sock(NO_SOCKET_AVAIL) {}
/* Start WiFiUDP socket, listening at local port PORT */
uint8_t WiFiUDP::begin(uint16_t port) {
uint8_t sock = WiFiClass::getSocket();
if (sock != NO_SOCKET_AVAIL)
{
ServerDrv::startServer(port, sock, UDP_MODE);
WiFiClass::_server_port[sock] = port;
_sock = sock;
_port = port;
return 1;
}
return 0;
}
/* return number of bytes available in the current packet,
will return zero if parsePacket hasn't been called yet */
int WiFiUDP::available() {
if (_sock != NO_SOCKET_AVAIL)
{
return ServerDrv::availData(_sock);
}
return 0;
}
/* Release any resources being used by this WiFiUDP instance */
void WiFiUDP::stop()
{
if (_sock == NO_SOCKET_AVAIL)
return;
ServerDrv::stopClient(_sock);
_sock = NO_SOCKET_AVAIL;
}
int WiFiUDP::beginPacket(const char *host, uint16_t port)
{
// Look up the host first
int ret = 0;
IPAddress remote_addr;
if (WiFi.hostByName(host, remote_addr))
{
return beginPacket(remote_addr, port);
}
return ret;
}
int WiFiUDP::beginPacket(IPAddress ip, uint16_t port)
{
if (_sock == NO_SOCKET_AVAIL)
_sock = WiFiClass::getSocket();
if (_sock != NO_SOCKET_AVAIL)
{
ServerDrv::startClient(uint32_t(ip), port, _sock, UDP_MODE);
WiFiClass::_state[_sock] = _sock;
return 1;
}
return 0;
}
int WiFiUDP::endPacket()
{
return ServerDrv::sendUdpData(_sock);
}
size_t WiFiUDP::write(uint8_t byte)
{
return write(&byte, 1);
}
size_t WiFiUDP::write(const uint8_t *buffer, size_t size)
{
ServerDrv::insertDataBuf(_sock, buffer, size);
return size;
}
int WiFiUDP::parsePacket()
{
return available();
}
int WiFiUDP::read()
{
uint8_t b;
if (available())
{
ServerDrv::getData(_sock, &b);
return b;
}else{
return -1;
}
}
int WiFiUDP::read(unsigned char* buffer, size_t len)
{
if (available())
{
size_t size = 0;
if (!ServerDrv::getDataBuf(_sock, buffer, &size))
return -1;
// TODO check if the buffer is too smal respect to buffer size
return size;
}else{
return -1;
}
}
int WiFiUDP::peek()
{
uint8_t b;
if (!available())
return -1;
ServerDrv::getData(_sock, &b, 1);
return b;
}
void WiFiUDP::flush()
{
while (available())
read();
}
IPAddress WiFiUDP::remoteIP()
{
uint8_t _remoteIp[4] = {0};
uint8_t _remotePort[2] = {0};
WiFiDrv::getRemoteData(_sock, _remoteIp, _remotePort);
IPAddress ip(_remoteIp);
return ip;
}
uint16_t WiFiUDP::remotePort()
{
uint8_t _remoteIp[4] = {0};
uint8_t _remotePort[2] = {0};
WiFiDrv::getRemoteData(_sock, _remoteIp, _remotePort);
uint16_t port = (_remotePort[0]<<8)+_remotePort[1];
return port;
}
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