143 lines
3.6 KiB
C
143 lines
3.6 KiB
C
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/*++
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Copyright (C) 1991-8 Microsoft Corporation
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Module Name:
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errlog.c
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Abstract:
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this module provides error logging capabilities for
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the redbook driver
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Author:
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Henry Gabryjelski (henrygab) 1-Oct-1998
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Environment:
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kernel mode only
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Notes:
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Revision History:
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--*/
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#include "redbook.h"
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#include "proto.h"
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#include "errlog.tmh"
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VOID
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RedBookLogError(
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IN PREDBOOK_DEVICE_EXTENSION DeviceExtension,
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IN NTSTATUS IoErrorCode,
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IN NTSTATUS FinalStatus
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)
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/*++
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Routine Description:
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This routine performs error logging for the redbook driver.
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Arguments:
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Extension - Extension.
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UniqueErrorValue - Values defined to uniquely identify error location.
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Return Value:
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None
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--*/
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{
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PIO_ERROR_LOG_PACKET errorLogPacket;
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ULONG count;
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ULONG rCount;
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USHORT simpleCode;
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ULONG packetSize;
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count = InterlockedIncrement(&DeviceExtension->ErrorLog.Count);
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simpleCode = (USHORT)(IoErrorCode & REDBOOK_ERR_MASK);
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ASSERT(simpleCode < REDBOOK_ERR_MAXIMUM);
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switch (IoErrorCode) {
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case REDBOOK_ERR_TOO_MANY_READ_ERRORS:
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case REDBOOK_ERR_TOO_MANY_STREAM_ERRORS:
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case REDBOOK_ERR_CANNOT_OPEN_SYSAUDIO_MIXER:
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case REDBOOK_ERR_CANNOT_CREATE_VIRTUAL_SOURCE:
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case REDBOOK_ERR_CANNOT_OPEN_PREFERRED_WAVEOUT_DEVICE:
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case REDBOOK_ERR_CANNOT_GET_NUMBER_OF_PINS:
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case REDBOOK_ERR_CANNOT_CONNECT_TO_PLAYBACK_PINS:
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case REDBOOK_ERR_WMI_INIT_FAILED:
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case REDBOOK_ERR_CANNOT_CREATE_THREAD:
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case REDBOOK_ERR_INSUFFICIENT_DATA_STREAM_PAUSED:
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case REDBOOK_ERR_UNSUPPORTED_DRIVE:
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NOTHING;
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break;
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default:
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KdPrintEx((DPFLTR_REDBOOK_ID, RedbookDebugError, "[redbook] "
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"LogErr !! Invalid error code %lx\n", IoErrorCode));
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return;
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}
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//
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// Use an exponential backoff algorithm to log events.
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//
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rCount = InterlockedIncrement(&DeviceExtension->ErrorLog.RCount[simpleCode]);
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if (CountOfSetBits(rCount) != 1) {
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KdPrintEx((DPFLTR_REDBOOK_ID, RedbookDebugErrlog, "[redbook] "
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"LogError => IoErrorCode %lx Occurance %d\n",
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IoErrorCode, rCount));
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return;
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}
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KdPrintEx((DPFLTR_REDBOOK_ID, RedbookDebugErrlog, "[redbook] "
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"LogError => IoErrorCode %lx Occurance %d\n",
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IoErrorCode, rCount));
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packetSize = sizeof(IO_ERROR_LOG_PACKET) + sizeof(ULONG);
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errorLogPacket = (PIO_ERROR_LOG_PACKET)
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IoAllocateErrorLogEntry(DeviceExtension->SelfDeviceObject,
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(UCHAR)packetSize);
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if (errorLogPacket==NULL) {
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KdPrintEx((DPFLTR_REDBOOK_ID, RedbookDebugErrlog, "[redbook] "
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"LogError => unable to allocate error log packet\n"));
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return;
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}
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KdPrintEx((DPFLTR_REDBOOK_ID, RedbookDebugErrlog, "[redbook] "
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"LogError => allocated error log at %p, size %x\n",
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errorLogPacket, packetSize));
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//
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// this function relies upon IoAllocateErrorLogEntry() zero'ing the packet
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//
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errorLogPacket->MajorFunctionCode = -1;
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errorLogPacket->IoControlCode = -1;
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errorLogPacket->ErrorCode = IoErrorCode;
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errorLogPacket->FinalStatus = FinalStatus;
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errorLogPacket->SequenceNumber = count;
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errorLogPacket->DumpDataSize = 4; // bytes
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errorLogPacket->DumpData[0] = rCount;
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IoWriteErrorLogEntry(errorLogPacket);
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return;
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}
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