dubey/WindowsXP
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
WindowsXP/drivers/wdm/devbay/dbport/dbcacpi/dbg.c
Tanishq Dubey cb60ae51e5
Initial Commit
2025-04-27 07:49:33 -04:00

483 lines
10 KiB
C
Raw Permalink Blame History

/*++
Copyright (c) 1998 Microsoft Corporation
Module Name:
DBG.C
Abstract:
This module contains debug only code for DBC driver
Author:
jdunn
Environment:
kernel mode only
Notes:
Revision History:
11-5-96 : created
--*/
#include <wdm.h>
#include "stdarg.h"
#include "stdio.h"
#include "dbci.h"
#include "dbcacpi.h"
#ifdef MAX_DEBUG
#define DEBUG_HEAP
#endif
typedef struct _HEAP_TAG_BUFFER {
ULONG Sig;
ULONG Length;
} HEAP_TAG_BUFFER, *PHEAP_TAG_BUFFER;
#if DBG
extern ULONG DBCACPI_Debug_Trace_Level;
extern ULONG DBCACPI_W98_Debug_Trace;
VOID
DBCACPI_Assert(
IN PVOID FailedAssertion,
IN PVOID FileName,
IN ULONG LineNumber,
IN PCHAR Message
)
/*++
Routine Description:
Debug Assert function.
Arguments:
DeviceObject - pointer to a device object
Irp - pointer to an I/O Request Packet
Return Value:
--*/
{
#ifdef NTKERN
// this makes the compiler generate a ret
ULONG stop = 1;
assert_loop:
#endif
// just call the NT assert function and stop
// in the debugger.
RtlAssert( FailedAssertion, FileName, LineNumber, Message );
// loop here to prevent users from going past
// are assert before we can look at it
#ifdef NTKERN
TRAP();
if (stop) {
goto assert_loop;
}
#endif
return;
}
ULONG
_cdecl
DBCACPI_KdPrintX(
ULONG l,
PCH Format,
...
)
{
va_list list;
int i;
int arg[6];
if (DBCACPI_Debug_Trace_Level >= l) {
if (l <= 1) {
// this code is useful for debugging on win9x where
// the ntkernel emulator has a trace buffer...
//
// override the ntkern trace buffer for
// level 1 output -- ie go to terminal
if (DBCACPI_W98_Debug_Trace) {
DbgPrint("DBCACPI.SYS: ");
*Format = ' ';
} else {
DbgPrint("'DBCACPI.SYS: ");
}
} else {
DbgPrint("'DBCACPI.SYS: ");
}
va_start(list, Format);
for (i=0; i<6; i++)
arg[i] = va_arg(list, int);
DbgPrint(Format, arg[0], arg[1], arg[2], arg[3], arg[4], arg[5]);
}
return 0;
}
NTSTATUS
DBCACPI_GetClassGlobalDebugRegistryParameters(
)
/*++
Routine Description:
Arguments:
Return Value:
--*/
{
NTSTATUS ntStatus;
RTL_QUERY_REGISTRY_TABLE QueryTable[3];
PWCHAR usb = L"class\\dbc";
PAGED_CODE();
//
// Set up QueryTable to do the following:
//
// spew level
QueryTable[0].QueryRoutine = DBCACPI_GetConfigValue;
QueryTable[0].Flags = 0;
QueryTable[0].Name = DEBUG_LEVEL_KEY;
QueryTable[0].EntryContext = &DBCACPI_Debug_Trace_Level;
QueryTable[0].DefaultType = REG_DWORD;
QueryTable[0].DefaultData = &DBCACPI_Debug_Trace_Level;
QueryTable[0].DefaultLength = sizeof(DBCACPI_Debug_Trace_Level);
// ntkern trace buffer
QueryTable[1].QueryRoutine = DBCACPI_GetConfigValue;
QueryTable[1].Flags = 0;
QueryTable[1].Name = DEBUG_WIN9X_KEY;
QueryTable[1].EntryContext = &DBCACPI_W98_Debug_Trace;
QueryTable[1].DefaultType = REG_DWORD;
QueryTable[1].DefaultData = &DBCACPI_W98_Debug_Trace;
QueryTable[1].DefaultLength = sizeof(DBCACPI_W98_Debug_Trace);
//
// Stop
//
QueryTable[2].QueryRoutine = NULL;
QueryTable[2].Flags = 0;
QueryTable[2].Name = NULL;
ntStatus = RtlQueryRegistryValues(
RTL_REGISTRY_SERVICES,
usb,
QueryTable, // QueryTable
NULL, // Context
NULL); // Environment
if (NT_SUCCESS(ntStatus)) {
DBCACPI_KdPrint((1, "'Debug Trace Level Set: (%d)\n", DBCACPI_Debug_Trace_Level));
if (DBCACPI_W98_Debug_Trace) {
DBCACPI_KdPrint((1, "'NTKERN Trace is ON\n"));
} else {
DBCACPI_KdPrint((1, "'NTKERN Trace is OFF\n"));
}
if (DBCACPI_Debug_Trace_Level > 0) {
ULONG DBCACPI_Debug_Asserts = 1;
}
}
if ( STATUS_OBJECT_NAME_NOT_FOUND == ntStatus ) {
ntStatus = STATUS_SUCCESS;
}
return ntStatus;
}
PVOID
DBCACPI_GetHeap(
IN POOL_TYPE PoolType,
IN ULONG NumberOfBytes,
IN ULONG Signature,
IN PLONG TotalAllocatedHeapSpace
)
/*++
Routine Description:
Debug routine, used to debug heap problems. We are using this since
most NT debug functions are not supported by NTKERN.
Arguments:
PoolType - pool type passed to ExAllocatePool
NumberOfBytes - number of bytes for item
Signature - four byte signature supplied by caller
TotalAllocatedHeapSpace - pointer to variable where client stores
the total accumulated heap space allocated.
Return Value:
pointer to allocated memory
--*/
{
PUCHAR p;
#ifdef DEBUG_HEAP
PHEAP_TAG_BUFFER tagBuffer;
// we call ExAllocatePoolWithTag but no tag will be added
// when running under NTKERN
p = (PUCHAR) ExAllocatePoolWithTag(PoolType,
NumberOfBytes + sizeof(HEAP_TAG_BUFFER)*2,
Signature);
if (p) {
tagBuffer = (PHEAP_TAG_BUFFER) p;
tagBuffer->Sig = Signature;
tagBuffer->Length = NumberOfBytes;
p += sizeof(HEAP_TAG_BUFFER);
*TotalAllocatedHeapSpace += NumberOfBytes;
tagBuffer = (PHEAP_TAG_BUFFER) (p + NumberOfBytes);
tagBuffer->Sig = Signature;
tagBuffer->Length = NumberOfBytes;
}
// LOGENTRY(LOG_MISC, (PUCHAR) &Signature, 0, 0, 0);
// LOGENTRY(LOG_MISC, "GetH", p, NumberOfBytes, stk[1] & 0x00FFFFFF);
#else
p = (PUCHAR) ExAllocatePoolWithTag(PoolType,
NumberOfBytes,
Signature);
#endif /* DEBUG_HEAP */
return p;
}
VOID
UsbhRetHeap(
IN PVOID P,
IN ULONG Signature,
IN PLONG TotalAllocatedHeapSpace
)
/*++
Routine Description:
Debug routine, used to debug heap problems. We are using this since
most NT debug functions are not supported by NTKERN.
Arguments:
P - pointer to free
Return Value:
none.
--*/
{
#ifdef DEBUG_HEAP
PHEAP_TAG_BUFFER endTagBuffer;
PHEAP_TAG_BUFFER beginTagBuffer;
DBCACPI_ASSERT(P != 0);
beginTagBuffer = (PHEAP_TAG_BUFFER) ((PUCHAR)P - sizeof(HEAP_TAG_BUFFER));
endTagBuffer = (PHEAP_TAG_BUFFER) ((PUCHAR)P + beginTagBuffer->Length);
*TotalAllocatedHeapSpace -= beginTagBuffer->Length;
// LOGENTRY(LOG_MISC, (PUCHAR) &Signature, 0, 0, 0);
// LOGENTRY(LOG_MISC, "RetH", P, tagBuffer->Length, stk[1] & 0x00FFFFFF);
DBCACPI_ASSERT(*TotalAllocatedHeapSpace >= 0);
DBCACPI_ASSERT(beginTagBuffer->Sig == Signature);
DBCACPI_ASSERT(endTagBuffer->Sig == Signature);
DBCACPI_ASSERT(endTagBuffer->Length == beginTagBuffer->Length);
// fill the buffer with bad data
RtlFillMemory(P, beginTagBuffer->Length, 0xff);
beginTagBuffer->Sig = DBCACPI_FREE_TAG;
// free the original block
ExFreePool(beginTagBuffer);
#else
ExFreePool(P);
#endif /* DEBUG_HEAP */
}
#endif /* DBG */
#ifdef DEBUG_LOG
KSPIN_LOCK LogSpinLock;
struct DBG_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
}; /* USBD_LOG_ENTRY */
struct DBG_LOG_ENTRY *DbcALStart = 0; // No log yet
struct DBG_LOG_ENTRY *DbcALPtr;
struct DBG_LOG_ENTRY *DbcALEnd;
#ifdef PROFILE
ULONG LogMask = LOG_PROFILE;
#else
ULONG LogMask = 0xFFFFFFFF;
#endif
VOID
DBCACPI_Debug_LogEntry(
IN ULONG Mask,
IN CHAR *Name,
IN ULONG Info1,
IN ULONG Info2,
IN ULONG Info3
)
/*++
Routine Description:
Adds an Entry to USBH log.
Arguments:
Return Value:
None.
--*/
{
KIRQL irql;
if (DbcALStart == 0) {
return;
}
if ((Mask & LogMask) == 0) {
return;
}
irql = KeGetCurrentIrql();
if (irql < DISPATCH_LEVEL) {
KeAcquireSpinLock(&LogSpinLock, &irql);
} else {
KeAcquireSpinLockAtDpcLevel(&LogSpinLock);
}
if (DbcALPtr > DbcALStart) {
DbcALPtr -= 1; // Decrement to next entry
} else {
DbcALPtr = DbcALEnd;
}
DBCACPI_ASSERT(DbcALPtr >= DbcALStart);
RtlCopyMemory(DbcALPtr->le_name, Name, 4);
// LPtr->le_ret = (stk[1] & 0x00ffffff) | (CurVMID()<<24);
DbcALPtr->le_info1 = Info1;
DbcALPtr->le_info2 = Info2;
DbcALPtr->le_info3 = Info3;
if (irql < DISPATCH_LEVEL) {
KeReleaseSpinLock(&LogSpinLock, irql);
} else {
KeReleaseSpinLockFromDpcLevel(&LogSpinLock);
}
return;
}
VOID
DBCACPI_LogInit(
)
/*++
Routine Description:
Init the debug log - remember interesting information in a circular buffer
Arguments:
Return Value:
None.
--*/
{
#ifdef MAX_DEBUG
ULONG logSize = 4096*6;
#else
ULONG logSize = 4096*3;
#endif
KeInitializeSpinLock(&LogSpinLock);
DbcALStart = ExAllocatePool(NonPagedPool,
logSize);
if (DbcALStart) {
DbcALPtr = DbcALStart;
// Point the end (and first entry) 1 entry from the end of the segment
DbcALEnd = DbcALStart + (logSize / sizeof(struct DBG_LOG_ENTRY)) - 1;
} else {
TRAP(); //(("no mem for log!\n"));
}
return;
}
VOID
DBCACPI_LogFree(
)
/*++
Routine Description:
Init the debug log - remember interesting information in a circular buffer
Arguments:
Return Value:
None.
--*/
{
if (DbcALStart) {
ExFreePool(DbcALStart);
}
}
#endif /* DEBUG_LOG */
Reference in New Issue View Git Blame Copy Permalink