134 lines
2 KiB
C
134 lines
2 KiB
C
|
//===========================================================================
|
||
|
|
//
|
||
|
|
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
|
||
|
|
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
|
||
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
|
||
|
|
// PURPOSE.
|
||
|
|
//
|
||
|
|
// Copyright (c) 1996 - 1998 Microsoft Corporation. All Rights Reserved.
|
||
|
|
//
|
||
|
|
//===========================================================================
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Module Name:
|
||
|
|
|
||
|
|
dbg.c
|
||
|
|
|
||
|
|
Abstract:
|
||
|
|
|
||
|
|
Debug Code for 1394 drivers.
|
||
|
|
|
||
|
|
Environment:
|
||
|
|
|
||
|
|
kernel mode only
|
||
|
|
|
||
|
|
Notes:
|
||
|
|
|
||
|
|
Revision History:
|
||
|
|
|
||
|
|
5-Sep-95
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
#include "wdm.h"
|
||
|
|
#include "dbg.h"
|
||
|
|
|
||
|
|
|
||
|
|
#if DBG
|
||
|
|
|
||
|
|
struct LOG_ENTRY {
|
||
|
|
CHAR le_name[4]; // Identifying string
|
||
|
|
ULONG le_info1; // entry specific info
|
||
|
|
ULONG le_info2; // entry specific info
|
||
|
|
ULONG le_info3; // entry specific info
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct LOG_ENTRY *LogStart = 0; // No log yet
|
||
|
|
struct LOG_ENTRY *LogPtr;
|
||
|
|
struct LOG_ENTRY *LogEnd;
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
VOID
|
||
|
|
Debug_LogEntry(
|
||
|
|
IN CHAR *Name,
|
||
|
|
IN ULONG Info1,
|
||
|
|
IN ULONG Info2,
|
||
|
|
IN ULONG Info3
|
||
|
|
)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Adds an Entry to log.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
None.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
{
|
||
|
|
|
||
|
|
#if DBG
|
||
|
|
|
||
|
|
if (LogStart == 0)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (LogPtr > LogStart)
|
||
|
|
LogPtr -= 1; // Decrement to next entry
|
||
|
|
else
|
||
|
|
LogPtr = LogEnd;
|
||
|
|
|
||
|
|
RtlCopyMemory(LogPtr->le_name, Name, 4);
|
||
|
|
LogPtr->le_info1 = Info1;
|
||
|
|
LogPtr->le_info2 = Info2;
|
||
|
|
LogPtr->le_info3 = Info3;
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
VOID
|
||
|
|
Debug_LogInit(
|
||
|
|
)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Init the debug log - remember interesting information in a circular buffer
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
None.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
{
|
||
|
|
ULONG logSize = 4096; //1 page of log entries
|
||
|
|
|
||
|
|
#if DBG
|
||
|
|
|
||
|
|
LogStart = ExAllocatePoolWithTag(NonPagedPool, logSize, 'macd');
|
||
|
|
|
||
|
|
if (LogStart) {
|
||
|
|
LogPtr = LogStart;
|
||
|
|
|
||
|
|
// Point the end (and first entry) 1 entry from the end of the segment
|
||
|
|
LogEnd = LogStart + (logSize / sizeof(struct LOG_ENTRY)) - 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|