windows-nt/Source/XPSP1/NT/drivers/net/ms/e100bex/routines.c
2020-09-26 16:20:57 +08:00

420 lines
15 KiB
C

/****************************************************************************
** COPYRIGHT (C) 1994-1997 INTEL CORPORATION **
** DEVELOPED FOR MICROSOFT BY INTEL CORP., HILLSBORO, OREGON **
** HTTP://WWW.INTEL.COM/ **
** THIS FILE IS PART OF THE INTEL ETHEREXPRESS PRO/100B(TM) AND **
** ETHEREXPRESS PRO/100+(TM) NDIS 5.0 MINIPORT SAMPLE DRIVER **
****************************************************************************/
/****************************************************************************
Module Name:
routines.c
This driver runs on the following hardware:
- 82558 based PCI 10/100Mb ethernet adapters
(aka Intel EtherExpress(TM) PRO Adapters)
Environment:
Kernel Mode - Or whatever is the equivalent on WinNT
Revision History
- JCB 8/14/97 Example Driver Created
- Dchen 11-01-99 Modified for the new sample driver
*****************************************************************************/
#include "precomp.h"
#pragma hdrstop
#pragma warning (disable: 4514 4706)
//-----------------------------------------------------------------------------
// Procedure: MdiWrite
//
// Description: This routine will write a value to the specified MII register
// of an external MDI compliant device (e.g. PHY 100). The
// command will execute in polled mode.
//
// Arguments:
// Adapter - ptr to Adapter object instance
// RegAddress - The MII register that we are writing to
// PhyAddress - The MDI address of the Phy component.
// DataValue - The value that we are writing to the MII register.
//
// Returns:
// NOTHING
//-----------------------------------------------------------------------------
VOID MdiWrite(
IN PMP_ADAPTER Adapter,
IN ULONG RegAddress,
IN ULONG PhyAddress,
IN USHORT DataValue)
{
BOOLEAN bResult;
// Issue the write command to the MDI control register.
Adapter->CSRAddress->MDIControl = (((ULONG) DataValue) |
(RegAddress << 16) |
(PhyAddress << 21) |
(MDI_WRITE << 26));
// wait 20usec before checking status
NdisStallExecution(20);
// wait 2 seconds for the mdi write to complete
MP_STALL_AND_WAIT(Adapter->CSRAddress->MDIControl & MDI_PHY_READY, 2000, bResult);
if (!bResult)
{
MP_SET_HARDWARE_ERROR(Adapter);
}
}
//-----------------------------------------------------------------------------
// Procedure: MdiRead
//
// Description: This routine will read a value from the specified MII register
// of an external MDI compliant device (e.g. PHY 100), and return
// it to the calling routine. The command will execute in polled
// mode.
//
// Arguments:
// Adapter - ptr to Adapter object instance
// RegAddress - The MII register that we are reading from
// PhyAddress - The MDI address of the Phy component.
// Recoverable - Whether the hardware error(if any)if recoverable or not
//
// Results:
// DataValue - The value that we read from the MII register.
//
// Returns:
// None
//-----------------------------------------------------------------------------
BOOLEAN MdiRead(
IN PMP_ADAPTER Adapter,
IN ULONG RegAddress,
IN ULONG PhyAddress,
IN BOOLEAN Recoverable,
IN OUT PUSHORT DataValue)
{
BOOLEAN bResult;
// Issue the read command to the MDI control register.
Adapter->CSRAddress->MDIControl = ((RegAddress << 16) |
(PhyAddress << 21) |
(MDI_READ << 26));
// wait 20usec before checking status
NdisStallExecution(20);
// Wait up to 2 seconds for the mdi read to complete
MP_STALL_AND_WAIT(Adapter->CSRAddress->MDIControl & MDI_PHY_READY, 2000, bResult);
if (!bResult)
{
if (!Recoverable)
{
MP_SET_NON_RECOVER_ERROR(Adapter);
}
MP_SET_HARDWARE_ERROR(Adapter);
return bResult;
}
*DataValue = (USHORT) Adapter->CSRAddress->MDIControl;
return bResult;
}
//-----------------------------------------------------------------------------
// Procedure: DumpStatsCounters
//
// Description: This routine will dump and reset the 82557's internal
// Statistics counters. The current stats dump values will be
// added to the "Adapter's" overall statistics.
// Arguments:
// Adapter - ptr to Adapter object instance
//
// Returns:
// NOTHING
//-----------------------------------------------------------------------------
VOID DumpStatsCounters(
IN PMP_ADAPTER Adapter)
{
BOOLEAN bResult;
// The query is for a driver statistic, so we need to first
// update our statistics in software.
// clear the dump counters complete DWORD
Adapter->StatsCounters->CommandComplete = 0;
NdisAcquireSpinLock(&Adapter->Lock);
// Dump and reset the hardware's statistic counters
D100IssueScbCommand(Adapter, SCB_CUC_DUMP_RST_STAT, TRUE);
// Restore the resume transmit software flag. After the dump counters
// command is issued, we should do a WaitSCB before issuing the next send.
Adapter->ResumeWait = TRUE;
NdisReleaseSpinLock(&Adapter->Lock);
// wait up to 2 seconds for the dump/reset to complete
MP_STALL_AND_WAIT(Adapter->StatsCounters->CommandComplete == 0xA007, 2000, bResult);
if (!bResult)
{
MP_SET_HARDWARE_ERROR(Adapter);
return;
}
// Output the debug counters to the debug terminal.
DBGPRINT(MP_INFO, ("Good Transmits %d\n", Adapter->StatsCounters->XmtGoodFrames));
DBGPRINT(MP_INFO, ("Good Receives %d\n", Adapter->StatsCounters->RcvGoodFrames));
DBGPRINT(MP_INFO, ("Max Collisions %d\n", Adapter->StatsCounters->XmtMaxCollisions));
DBGPRINT(MP_INFO, ("Late Collisions %d\n", Adapter->StatsCounters->XmtLateCollisions));
DBGPRINT(MP_INFO, ("Transmit Underruns %d\n", Adapter->StatsCounters->XmtUnderruns));
DBGPRINT(MP_INFO, ("Transmit Lost CRS %d\n", Adapter->StatsCounters->XmtLostCRS));
DBGPRINT(MP_INFO, ("Transmits Deferred %d\n", Adapter->StatsCounters->XmtDeferred));
DBGPRINT(MP_INFO, ("One Collision xmits %d\n", Adapter->StatsCounters->XmtSingleCollision));
DBGPRINT(MP_INFO, ("Mult Collision xmits %d\n", Adapter->StatsCounters->XmtMultCollisions));
DBGPRINT(MP_INFO, ("Total Collisions %d\n", Adapter->StatsCounters->XmtTotalCollisions));
DBGPRINT(MP_INFO, ("Receive CRC errors %d\n", Adapter->StatsCounters->RcvCrcErrors));
DBGPRINT(MP_INFO, ("Receive Alignment errors %d\n", Adapter->StatsCounters->RcvAlignmentErrors));
DBGPRINT(MP_INFO, ("Receive no resources %d\n", Adapter->StatsCounters->RcvResourceErrors));
DBGPRINT(MP_INFO, ("Receive overrun errors %d\n", Adapter->StatsCounters->RcvOverrunErrors));
DBGPRINT(MP_INFO, ("Receive CDT errors %d\n", Adapter->StatsCounters->RcvCdtErrors));
DBGPRINT(MP_INFO, ("Receive short frames %d\n", Adapter->StatsCounters->RcvShortFrames));
// update packet counts
Adapter->GoodTransmits += Adapter->StatsCounters->XmtGoodFrames;
Adapter->GoodReceives += Adapter->StatsCounters->RcvGoodFrames;
// update transmit error counts
Adapter->TxAbortExcessCollisions += Adapter->StatsCounters->XmtMaxCollisions;
Adapter->TxLateCollisions += Adapter->StatsCounters->XmtLateCollisions;
Adapter->TxDmaUnderrun += Adapter->StatsCounters->XmtUnderruns;
Adapter->TxLostCRS += Adapter->StatsCounters->XmtLostCRS;
Adapter->TxOKButDeferred += Adapter->StatsCounters->XmtDeferred;
Adapter->OneRetry += Adapter->StatsCounters->XmtSingleCollision;
Adapter->MoreThanOneRetry += Adapter->StatsCounters->XmtMultCollisions;
Adapter->TotalRetries += Adapter->StatsCounters->XmtTotalCollisions;
// update receive error counts
Adapter->RcvCrcErrors += Adapter->StatsCounters->RcvCrcErrors;
Adapter->RcvAlignmentErrors += Adapter->StatsCounters->RcvAlignmentErrors;
Adapter->RcvResourceErrors += Adapter->StatsCounters->RcvResourceErrors;
Adapter->RcvDmaOverrunErrors += Adapter->StatsCounters->RcvOverrunErrors;
Adapter->RcvCdtFrames += Adapter->StatsCounters->RcvCdtErrors;
Adapter->RcvRuntErrors += Adapter->StatsCounters->RcvShortFrames;
}
//-----------------------------------------------------------------------------
// Procedure: NICIssueSelectiveReset
//
// Description: This routine will issue a selective reset, forcing the adapter
// the CU and RU back into their idle states. The receive unit
// will then be re-enabled if it was previously enabled, because
// an RNR interrupt will be generated when we abort the RU.
//
// Arguments:
// Adapter - ptr to Adapter object instance
//
// Returns:
// NOTHING
//-----------------------------------------------------------------------------
VOID NICIssueSelectiveReset(
PMP_ADAPTER Adapter)
{
NDIS_STATUS Status;
BOOLEAN bResult;
// Wait for the SCB to clear before we check the CU status.
if (!MP_TEST_FLAG(Adapter, fMP_ADAPTER_HARDWARE_ERROR))
{
WaitScb(Adapter);
}
// If we have issued any transmits, then the CU will either be active, or
// in the suspended state. If the CU is active, then we wait for it to be
// suspended. If the the CU is suspended, then we need to put the CU back
// into the idle state by issuing a selective reset.
if (Adapter->TransmitIdle == FALSE)
{
// Wait up to 2 seconds for suspended state
MP_STALL_AND_WAIT((Adapter->CSRAddress->ScbStatus & SCB_CUS_MASK) != SCB_CUS_ACTIVE, 2000, bResult)
if (!bResult)
{
MP_SET_HARDWARE_ERROR(Adapter);
}
// Check the current status of the receive unit
if ((Adapter->CSRAddress->ScbStatus & SCB_RUS_MASK) != SCB_RUS_IDLE)
{
// Issue an RU abort. Since an interrupt will be issued, the
// RU will be started by the DPC.
Status = D100IssueScbCommand(Adapter, SCB_RUC_ABORT, TRUE);
}
// Issue a selective reset.
DBGPRINT(MP_INFO, ("CU suspended. ScbStatus=%04x Issue selective reset\n", Adapter->CSRAddress->ScbStatus));
Adapter->CSRAddress->Port = PORT_SELECTIVE_RESET;
// Wait after a port sel-reset command
NdisStallExecution(NIC_DELAY_POST_RESET);
// wait up to 2 ms for port command to complete
MP_STALL_AND_WAIT(Adapter->CSRAddress->Port == 0, 2, bResult)
if (!bResult)
{
MP_SET_HARDWARE_ERROR(Adapter);
}
// disable interrupts after issuing reset, because the int
// line gets raised when reset completes.
NICDisableInterrupt(Adapter);
// Restore the transmit software flags.
Adapter->TransmitIdle = TRUE;
Adapter->ResumeWait = TRUE;
}
}
VOID NICIssueFullReset(
PMP_ADAPTER Adapter)
{
BOOLEAN bResult;
NICIssueSelectiveReset(Adapter);
Adapter->CSRAddress->Port = PORT_SOFTWARE_RESET;
// wait up to 2 ms for port command to complete
MP_STALL_AND_WAIT(Adapter->CSRAddress->Port == 0, 2, bResult);
if (!bResult)
{
MP_SET_HARDWARE_ERROR(Adapter);
return;
}
NICDisableInterrupt(Adapter);
}
//-----------------------------------------------------------------------------
// Procedure: D100SubmitCommandBlockAndWait
//
// Description: This routine will submit a command block to be executed, and
// then it will wait for that command block to be executed. Since
// board ints will be disabled, we will ack the interrupt in
// this routine.
//
// Arguments:
// Adapter - ptr to Adapter object instance
//
// Returns:
// NDIS_STATUS_SUCCESS
// NDIS_STATUS_HARD_ERRORS
//-----------------------------------------------------------------------------
NDIS_STATUS D100SubmitCommandBlockAndWait(
IN PMP_ADAPTER Adapter)
{
NDIS_STATUS Status;
BOOLEAN bResult;
// Points to the Non Tx Command Block.
volatile PNON_TRANSMIT_CB CommandBlock = Adapter->NonTxCmdBlock;
// Set the Command Block to be the last command block
CommandBlock->NonTxCb.Config.ConfigCBHeader.CbCommand |= CB_EL_BIT;
// Clear the status of the command block
CommandBlock->NonTxCb.Config.ConfigCBHeader.CbStatus = 0;
#if DBG
// Don't try to start the CU if the command unit is active.
if ((Adapter->CSRAddress->ScbStatus & SCB_CUS_MASK) == SCB_CUS_ACTIVE)
{
DBGPRINT(MP_ERROR, ("Scb "PTR_FORMAT" ScbStatus %04x\n", Adapter->CSRAddress, Adapter->CSRAddress->ScbStatus));
ASSERT(FALSE);
MP_SET_HARDWARE_ERROR(Adapter);
return(NDIS_STATUS_HARD_ERRORS);
}
#endif
// Start the command unit.
D100IssueScbCommand(Adapter, SCB_CUC_START, FALSE);
// Wait for the SCB to clear, indicating the completion of the command.
if (!WaitScb(Adapter))
{
return(NDIS_STATUS_HARD_ERRORS);
}
// Wait for some status, timeout value 3 secs
MP_STALL_AND_WAIT(CommandBlock->NonTxCb.Config.ConfigCBHeader.CbStatus & CB_STATUS_COMPLETE, 3000, bResult);
if (!bResult)
{
MP_SET_HARDWARE_ERROR(Adapter);
return(NDIS_STATUS_HARD_ERRORS);
}
// Ack any interrupts
if (Adapter->CSRAddress->ScbStatus & SCB_ACK_MASK)
{
// Ack all pending interrupts now
Adapter->CSRAddress->ScbStatus &= SCB_ACK_MASK;
}
// Check the status of the command, and if the command failed return FALSE,
// otherwise return TRUE.
if (!(CommandBlock->NonTxCb.Config.ConfigCBHeader.CbStatus & CB_STATUS_OK))
{
DBGPRINT(MP_ERROR, ("Command failed\n"));
MP_SET_HARDWARE_ERROR(Adapter);
Status = NDIS_STATUS_HARD_ERRORS;
}
else
Status = NDIS_STATUS_SUCCESS;
return(Status);
}
//-----------------------------------------------------------------------------
// Procedure: GetConnectionStatus
//
// Description: This function returns the connection status that is
// a required indication for PC 97 specification from MS
// the value we are looking for is if there is link to the
// wire or not.
//
// Arguments: IN Adapter structure pointer
//
// Returns: NdisMediaStateConnected
// NdisMediaStateDisconnected
//-----------------------------------------------------------------------------
NDIS_MEDIA_STATE NICGetMediaState(IN PMP_ADAPTER Adapter)
{
USHORT MdiStatusReg = 0;
BOOLEAN bResult1;
BOOLEAN bResult2;
// Read the status register at phy 1
bResult1 = MdiRead(Adapter, MDI_STATUS_REG, Adapter->PhyAddress, TRUE, &MdiStatusReg);
bResult2 = MdiRead(Adapter, MDI_STATUS_REG, Adapter->PhyAddress, TRUE, &MdiStatusReg);
// if there is hardware failure, or let the state remains the same
if (!bResult1 || !bResult2)
{
return Adapter->MediaState;
}
if (MdiStatusReg & MDI_SR_LINK_STATUS)
return(NdisMediaStateConnected);
else
return(NdisMediaStateDisconnected);
}