/**
* Should allocate a pbuf and transfer the bytes of the incoming
* packet from the interface into the pbuf.
*
* @param netif the lwip network interface structure for this ethernetif
* @return a pbuf filled with the received packet (including MAC header)
* NULL on memory error
*/
static struct pbuf *
low_level_input(struct netif *netif)
{
//return NULL;
return PacketReceive(netif);
}
int SendData(int dsize,unsigned char *dptr)
{
int retval;
if (UDPEnable){
/* retval = sendto(ugamesocket,dptr,dsize,0,(struct sockaddr *)&ugameaddress,sizeof(ugameaddress));
if (retval == SOCKET_ERROR)
{
closesocket(gamesocket);
return(-1);
}
return(0); */
if (((packetnum-packetnumhead) & 0xFF) >= 15){
// sprintf(message1,"Packet Overflow.");
// MessageBox (NULL, message1, "Init Error" , MB_ICONERROR );
// wait for receive packet, call JoyRead while waiting
while (((packetnum-packetnumhead) & 0xFF) >= 15){
PacketResend();
PacketReceive();
UpdateVFrame();
while ((packetconfirm[packetnumhead]) && (packetnum!=packetnumhead))
packetnumhead=(packetnumhead+1) & 0xFF;
}
}
CopyMemory(&(cpacketdata[2]),dptr,dsize);
CopyMemory(&(packetdata[2048*(packetnum & 0x0F)]),dptr,dsize);
packetsize[packetnum]=dsize;
packetconfirm[packetnum]=0;
cpacketdata[0]=1;
cpacketdata[1]=(char)packetnum;
retval = sendto(ugamesocket,cpacketdata,dsize+2,0,(struct sockaddr *)&ugameaddress,sizeof(ugameaddress));
packettimeleft[packetnum]=60;
if (dsize>512) packettimeleft[packetnum]=90;
packetresent[packetnum]=1;
packetnum=(packetnum+1) & 0xFF;
if (retval == SOCKET_ERROR)
{
closesocket(ugamesocket);
return(-1);
}
return(0);
}
/* send data with the socket */
retval = send(gamesocket,dptr,dsize,0);
if (retval == SOCKET_ERROR)
{
closesocket(gamesocket);
return(-1);
}
return(0);
}
/**************************************************************************//**
* @brief Request AEM (Advanced Energy Monitoring) voltage from board controller.
*
* @note Assumes that BSP_Init() has been called with @ref BSP_INIT_STK_BCUART
* bitmask.
*
* @return
* The voltage. Returns 0.0 on board controller communication
* error.
*****************************************************************************/
float BSP_VoltageGet(void)
{
STK_Packet pkt;
float voltage;
pkt.type = STK_PACKETTYPE_VOLTAGE_REQ;
pkt.payloadLength = 0;
/* Send Request/Get reply */
PacketSend(&pkt);
PacketReceive(&pkt);
/* Process reply */
if (pkt.type == STK_PACKETTYPE_VOLTAGE_REPLY)
{
memcpy(&voltage, pkt.data, sizeof(float));
return voltage;
}
else
{
return (float) 0.0;
}
}
/**************************************************************************//**
* @brief Request AEM (Advanced Energy Monitoring) current from board controller.
*
* @note Assumes that BSP_Init() has been called with @ref BSP_INIT_STK_BCUART
* bitmask.
*
* @return
* The current expressed in milliamperes. Returns 0.0 on board controller
* communication error.
*****************************************************************************/
float BSP_CurrentGet(void)
{
STK_Packet pkt;
float current;
pkt.type = STK_PACKETTYPE_CURRENT_REQ;
pkt.payloadLength = 0;
/* Send Request/Get reply */
PacketSend(&pkt);
PacketReceive(&pkt);
/* Process reply */
if (pkt.type == STK_PACKETTYPE_CURRENT_REPLY)
{
memcpy(¤t, pkt.data, sizeof(float));
return current;
}
else
{
return (float) 0.0;
}
}
int GetData(int dsize,unsigned char *dptr)
{
int retval,i;
int dataleft;
retval=0;
// Temporary UDP routines
if (UDPEnable) {
PacketResend();
PacketReceive();
i=packetrecvhead;
if (packetreceived[i]){
CopyMemory(dptr,&(packetrdata[2048*(i & 0x0F)]),packetreceivesize[i]);
retval = packetreceivesize[i];
packetreceived[(i+128) & 0xFF]=0;
packetrecvhead=(packetrecvhead+1) & 0xFF;
return(retval);
}
i=RecvPtr;
if ((RecvFlags[i]) && (UDPMode2)){
CopyMemory(dptr,&(RecvBuffer[32*i]),RecvBufferSize[i]);
retval = RecvBufferSize[i];
RecvFlags[(i+128) & 0xFF]=0;
RecvPtr=(RecvPtr+1) & 0xFF;
if (!RecvPtr) RecvPtr2=(RecvPtr2+1) & 0xFF;
CounterA=90;
return(retval);
}
if ((CounterA==0) & (UDPMode2)){
// Send 16+RecvPtr
cpacketdata[0]=16;
cpacketdata[1]=RecvPtr;
sendto(ugamesocket,cpacketdata,2,0,(struct sockaddr *)&ugameaddress,sizeof(ugameaddress));
CounterA=90;
return(0);
}
return(0);
}
dataleft=GetLeft();
if(dataleft==0) return(0);
if(dataleft<dsize)
{
dsize=dataleft;
}
/* get data with the socket */
retval = recv(gamesocket,dptr,dsize,0);
if (retval == SOCKET_ERROR)
{
closesocket(gamesocket);
return(-1);
}
return(retval);
}