+++ /dev/null
-/*
- * ReactOS Realtek 8139 Driver
- *
- * Copyright (C) 2013 Cameron Gutman
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include "nic.h"
-
-#define NDEBUG
-#include <debug.h>
-
-VOID
-NTAPI
-MiniportISR (
- OUT PBOOLEAN InterruptRecognized,
- OUT PBOOLEAN QueueMiniportHandleInterrupt,
- IN NDIS_HANDLE MiniportAdapterContext
- )
-{
- PRTL_ADAPTER adapter = (PRTL_ADAPTER)MiniportAdapterContext;
- ULONG csConfig;
-
- //
- // FIXME: We need to synchronize with this ISR for changes to InterruptPending,
- // LinkChange, MediaState, and LinkSpeedMbps. We can get away with IRQL
- // synchronization on non-SMP machines because we run a DIRQL here.
- //
-
- adapter->InterruptPending |= NICInterruptRecognized(adapter, InterruptRecognized);
- if (!(*InterruptRecognized))
- {
- //
- // This is not ours.
- //
- *QueueMiniportHandleInterrupt = FALSE;
- return;
- }
-
- //
- // We have to check for a special link change interrupt before acknowledging
- //
- if (adapter->InterruptPending & R_I_RXUNDRUN)
- {
- NdisRawReadPortUlong(adapter->IoBase + R_CSCFG, &csConfig);
- if (csConfig & R_CSCR_LINKCHNG)
- {
- adapter->LinkChange = TRUE;
- NICUpdateLinkStatus(adapter);
- }
- }
-
- //
- // Acknowledge the interrupt and mark the events pending service
- //
- NICAcknowledgeInterrupts(adapter);
- *QueueMiniportHandleInterrupt = TRUE;
-}
-
-VOID
-NTAPI
-MiniportHandleInterrupt (
- IN NDIS_HANDLE MiniportAdapterContext
- )
-{
- PRTL_ADAPTER adapter = (PRTL_ADAPTER)MiniportAdapterContext;
- ULONG txStatus;
- UCHAR command;
- PPACKET_HEADER nicHeader;
- PETH_HEADER ethHeader;
-
- NdisDprAcquireSpinLock(&adapter->Lock);
-
- NDIS_DbgPrint(MAX_TRACE, ("Interrupts pending: 0x%x\n", adapter->InterruptPending));
-
- //
- // Handle a link change
- //
- if (adapter->LinkChange)
- {
- NdisDprReleaseSpinLock(&adapter->Lock);
- NdisMIndicateStatus(adapter->MiniportAdapterHandle,
- adapter->MediaState == NdisMediaStateConnected ?
- NDIS_STATUS_MEDIA_CONNECT : NDIS_STATUS_MEDIA_DISCONNECT,
- NULL,
- 0);
- NdisMIndicateStatusComplete(adapter->MiniportAdapterHandle);
- NdisDprAcquireSpinLock(&adapter->Lock);
- adapter->LinkChange = FALSE;
- }
-
- //
- // Handle a TX interrupt
- //
- if (adapter->InterruptPending & (R_I_TXOK | R_I_TXERR))
- {
- while (adapter->TxFull || adapter->DirtyTxDesc != adapter->CurrentTxDesc)
- {
- NdisRawReadPortUlong(adapter->IoBase + R_TXSTS0 +
- (adapter->DirtyTxDesc * sizeof(ULONG)), &txStatus);
-
- if (!(txStatus & (R_TXS_STATOK | R_TXS_UNDERRUN | R_TXS_ABORTED)))
- {
- //
- // Not sent yet
- //
- break;
- }
-
- NDIS_DbgPrint(MAX_TRACE, ("Transmission for desc %d complete: 0x%x\n",
- adapter->DirtyTxDesc, txStatus));
-
- if (txStatus & R_TXS_STATOK)
- {
- adapter->TransmitOk++;
- }
- else
- {
- adapter->TransmitError++;
- }
-
- adapter->DirtyTxDesc++;
- adapter->DirtyTxDesc %= TX_DESC_COUNT;
- adapter->InterruptPending &= ~(R_I_TXOK | R_I_TXERR);
- adapter->TxFull = FALSE;
- }
- }
-
- //
- // Handle a good RX interrupt
- //
- if (adapter->InterruptPending & (R_I_RXOK | R_I_RXERR))
- {
- for (;;)
- {
- NdisRawReadPortUchar(adapter->IoBase + R_CMD, &command);
- if (command & R_CMD_RXEMPTY)
- {
- //
- // The buffer is empty
- //
- adapter->InterruptPending &= ~(R_I_RXOK | R_I_RXERR);
- break;
- }
-
- adapter->ReceiveOffset %= RECEIVE_BUFFER_SIZE;
-
- NDIS_DbgPrint(MAX_TRACE, ("Looking for a packet at offset 0x%x\n",
- adapter->ReceiveOffset));
- nicHeader = (PPACKET_HEADER)(adapter->ReceiveBuffer + adapter->ReceiveOffset);
- if (!(nicHeader->Status & RSR_ROK))
- {
- //
- // Receive failed
- //
- NDIS_DbgPrint(MIN_TRACE, ("Receive failed: 0x%x\n", nicHeader->Status));
-
- if (nicHeader->Status & RSR_FAE)
- {
- adapter->ReceiveAlignmentError++;
- }
- else if (nicHeader->Status & RSR_CRC)
- {
- adapter->ReceiveCrcError++;
- }
- adapter->ReceiveError++;
-
- goto NextPacket;
- }
-
- NDIS_DbgPrint(MAX_TRACE, ("Indicating %d byte packet to NDIS\n",
- nicHeader->PacketLength - RECV_CRC_LENGTH));
-
- ethHeader = (PETH_HEADER)(nicHeader + 1);
- NdisMEthIndicateReceive(adapter->MiniportAdapterHandle,
- NULL,
- (PVOID)(ethHeader),
- sizeof(ETH_HEADER),
- (PVOID)(ethHeader + 1),
- nicHeader->PacketLength - sizeof(ETH_HEADER) - RECV_CRC_LENGTH,
- nicHeader->PacketLength - sizeof(ETH_HEADER) - RECV_CRC_LENGTH);
- adapter->ReceiveOk++;
-
- NextPacket:
- adapter->ReceiveOffset += nicHeader->PacketLength + sizeof(PACKET_HEADER);
- adapter->ReceiveOffset = (adapter->ReceiveOffset + 3) & ~3;
- NdisRawWritePortUshort(adapter->IoBase + R_CAPR, adapter->ReceiveOffset - 0x10);
-
- if (adapter->InterruptPending & (R_I_RXOVRFLW | R_I_FIFOOVR))
- {
- //
- // We can only clear these interrupts once CAPR has been reset
- //
- NdisRawWritePortUshort(adapter->IoBase + R_IS, R_I_RXOVRFLW | R_I_FIFOOVR);
- adapter->InterruptPending &= ~(R_I_RXOVRFLW | R_I_FIFOOVR);
- }
- }
-
- NdisMEthIndicateReceiveComplete(adapter->MiniportAdapterHandle);
- }
-
- NdisDprReleaseSpinLock(&adapter->Lock);
-}
projects / reactos.git / blobdiff