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59d8a77df6
These adapters were common in DEC Alpha boxes and they are really rare nowadays. The 21140 chip is emulated in Connectix / Microsoft Virtual PC and Hyper-V Gen 1 VM. This is an experimental driver, not yet tested on real hardware. CORE-8724
144 lines
3.8 KiB
C
144 lines
3.8 KiB
C
/*
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* PROJECT: ReactOS DC21x4 Driver
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* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
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* PURPOSE: 21040 media support code
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* COPYRIGHT: Copyright 2023 Dmitry Borisov <di.sean@protonmail.com>
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*/
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/* INCLUDES *******************************************************************/
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#include "dc21x4.h"
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#include <debug.h>
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/* FUNCTIONS ******************************************************************/
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VOID
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MediaLinkStateChange21040(
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_In_ PDC21X4_ADAPTER Adapter,
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_In_ ULONG InterruptStatus)
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{
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UNREFERENCED_PARAMETER(InterruptStatus);
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INFO_VERB("Link failed, CSR12 %08lx\n", DC_READ(Adapter, DcCsr12_SiaStatus));
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NdisDprAcquireSpinLock(&Adapter->ModeLock);
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/* Start the media timer when the 10Base-T link has changed state */
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if (Adapter->MediaNumber != MEDIA_BNC)
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{
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MediaIndicateConnect(Adapter, FALSE);
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NdisMSetTimer(&Adapter->MediaMonitorTimer, 3000);
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}
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NdisDprReleaseSpinLock(&Adapter->ModeLock);
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}
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VOID
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NTAPI
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MediaMonitor21040Dpc(
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_In_ PVOID SystemSpecific1,
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_In_ PVOID FunctionContext,
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_In_ PVOID SystemSpecific2,
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_In_ PVOID SystemSpecific3)
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{
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PDC21X4_ADAPTER Adapter = FunctionContext;
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BOOLEAN LinkUp, Report, RunAgain;
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UNREFERENCED_PARAMETER(SystemSpecific1);
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UNREFERENCED_PARAMETER(SystemSpecific2);
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UNREFERENCED_PARAMETER(SystemSpecific3);
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if (!(Adapter->Flags & DC_ACTIVE))
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return;
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LinkUp = FALSE;
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Report = FALSE;
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RunAgain = TRUE;
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NdisDprAcquireSpinLock(&Adapter->ModeLock);
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if (Adapter->MediaNumber != MEDIA_BNC)
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{
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ULONG SiaStatus = DC_READ(Adapter, DcCsr12_SiaStatus);
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Report = TRUE;
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LinkUp = !(SiaStatus & (DC_SIA_STATUS_NETWORK_CONNECTION_ERROR |
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DC_SIA_STATUS_10T_LINK_FAIL));
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if (!LinkUp)
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{
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/* Select the other port */
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if (!MEDIA_IS_FIXED(Adapter))
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{
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Adapter->MediaNumber = MEDIA_BNC;
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DcWriteSia(Adapter,
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Adapter->Media[MEDIA_BNC].Csr13,
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Adapter->Media[MEDIA_BNC].Csr14,
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Adapter->Media[MEDIA_BNC].Csr15);
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Adapter->LastReceiveActivity = (ULONG)Adapter->Statistics.ReceiveOk;
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}
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}
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else
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{
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/* Wait until the next link change event */
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RunAgain = FALSE;
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}
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}
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else
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{
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ULONG ReceiveActivity = (ULONG)Adapter->Statistics.ReceiveOk;
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if (!(Adapter->ModeFlags & DC_MODE_TEST_PACKET))
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{
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/* Check for any received packets */
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if (ReceiveActivity != Adapter->LastReceiveActivity)
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{
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LinkUp = TRUE;
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Report = TRUE;
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}
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else
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{
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/* Send a loopback packet */
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NdisDprAcquireSpinLock(&Adapter->SendLock);
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DcTestPacket(Adapter);
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NdisDprReleaseSpinLock(&Adapter->SendLock);
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}
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}
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else
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{
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Adapter->ModeFlags &= ~DC_MODE_TEST_PACKET;
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LinkUp = !!Adapter->MediaTestStatus;
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Report = TRUE;
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/* Select the other port */
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if (!LinkUp && !MEDIA_IS_FIXED(Adapter))
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{
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Adapter->MediaNumber = MEDIA_10T;
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DcWriteSia(Adapter,
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Adapter->Media[MEDIA_10T].Csr13,
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Adapter->Media[MEDIA_10T].Csr14,
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Adapter->Media[MEDIA_10T].Csr15);
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}
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}
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Adapter->LastReceiveActivity = ReceiveActivity;
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}
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if (Report)
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{
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MediaIndicateConnect(Adapter, LinkUp);
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}
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NdisDprReleaseSpinLock(&Adapter->ModeLock);
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if (RunAgain)
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{
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NdisMSetTimer(&Adapter->MediaMonitorTimer, LinkUp ? 6000 : 3000);
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}
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}
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