#include <fs_devfs.h>
#include <drv_pci.h>
#include <tpl_drv_network.h>
+#include <semaphore.h>
// === CONSTANTS ===
#define MEM_START 0x40
Uint16 IOBase; //!< IO Port Address from PCI
Uint8 IRQ; //!< IRQ Assigned from PCI
- int NumWaitingPackets;
+ tSemaphore Semaphore;
+// int NumWaitingPackets;
int NextRXPage;
int NextMemPage; //!< Next Card Memory page to use
gpNe2k_Cards[ k ].Node.Write = Ne2k_Write;
gpNe2k_Cards[ k ].Node.Read = Ne2k_Read;
gpNe2k_Cards[ k ].Node.IOCtl = Ne2k_IOCtl;
+
+ // Initialise packet semaphore
+ // - Start at zero, no max
+ Semaphore_Init( &gpNe2k_Cards[k].Semaphore, 0, 0, "NE2000", gpNe2k_Cards[ k ].Name );
}
}
ENTER("pNode XOffset XLength pBuffer", Node, Offset, Length, Buffer);
- // TODO: Use MutexP/MutexV instead
- while(Card->NumWaitingPackets == 0) Threads_Yield();
+ // Wait for packets
+ Semaphore_Wait( &Card->Semaphore, 1 );
// Make sure that the card is in page 0
outb(Card->IOBase + CMD, 0|0x22); // Page 0, Start, NoDMA
outb( Card->IOBase + BNRY, page-1 );
// Set next RX Page and decrement the waiting list
Card->NextRXPage = page;
- Card->NumWaitingPackets --;
LEAVE('i', Length);
return Length;
// 0: Packet recieved (no error)
if( byte & 1 )
{
- gpNe2k_Cards[i].NumWaitingPackets ++;
- if( gpNe2k_Cards[i].NumWaitingPackets > MAX_PACKET_QUEUE )
- gpNe2k_Cards[i].NumWaitingPackets = MAX_PACKET_QUEUE;
+ //if( gpNe2k_Cards[i].NumWaitingPackets > MAX_PACKET_QUEUE )
+ // gpNe2k_Cards[i].NumWaitingPackets = MAX_PACKET_QUEUE;
+ Semaphore_Signal( &gpNe2k_Cards[i].Semaphore, 1 );
}
// 1: Packet sent (no error)
// 2: Recieved with error