Leaked source code of windows server 2003
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158 lines
4.5 KiB

/*++
Copyright (c) 1999 Microsoft Corporation
Module Name:
debug.c
Author:
ervinp
Environment:
Kernel mode
Revision History:
--*/
#include <WDM.H>
#include <usbdi.h>
#include <usbdlib.h>
#include <usbioctl.h>
#include "usb8023.h"
#include "debug.h"
#if DBG
BOOLEAN dbgTrapOnWarn = FALSE;
BOOLEAN dbgVerbose = FALSE;
BOOLEAN dbgDumpBytes = FALSE; // show all packets; slows us down too much to run
BOOLEAN dbgDumpPktStatesOnEmpty = TRUE;
VOID InitDebug()
{
#if DBG_WRAP_MEMORY
InitializeListHead(&dbgAllMemoryList);
#endif
}
VOID DbgShowBytes(PUCHAR msg, PUCHAR buf, ULONG len)
{
#define PRNT(ch) ((((ch) < ' ') || ((ch) > '~')) ? '.' : (ch))
if (dbgDumpBytes){
ULONG i;
DbgPrint("%s (len %xh @ %p): \r\n", msg, len, buf);
for (i = 0; i < len; i += 16){
DbgPrint(" ");
if (len-i >= 16){
PUCHAR ptr = buf+i;
DbgPrint("%02x %02x %02x %02x %02x %02x %02x %02x "
"%02x %02x %02x %02x %02x %02x %02x %02x "
" "
"%c%c%c%c%c%c%c%c %c%c%c%c%c%c%c%c",
ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7],
ptr[8], ptr[9], ptr[10], ptr[11], ptr[12], ptr[13], ptr[14], ptr[15],
PRNT(ptr[0]), PRNT(ptr[1]), PRNT(ptr[2]), PRNT(ptr[3]),
PRNT(ptr[4]), PRNT(ptr[5]), PRNT(ptr[6]), PRNT(ptr[7]),
PRNT(ptr[8]), PRNT(ptr[9]), PRNT(ptr[10]), PRNT(ptr[11]),
PRNT(ptr[12]), PRNT(ptr[13]), PRNT(ptr[14]), PRNT(ptr[15])
);
}
else {
ULONG j;
for (j = 0; j < 16; j++){
if (j == 8) DbgPrint(" ");
if (i+j < len){
DbgPrint("%02x ", (ULONG)buf[i+j]);
}
else {
DbgPrint(" ");
}
}
DbgPrint(" ");
for (j = 0; j < 16; j++){
if (j == 8) DbgPrint(" ");
if (i+j < len){
UCHAR ch = buf[i+j];
DbgPrint("%c", PRNT(ch));
}
else {
// DbgPrint(" ");
}
}
}
DbgPrint("\r\n");
}
}
}
VOID DbgShowMdlBytes(PUCHAR msg, PMDL mdl)
{
if (dbgDumpBytes){
DbgPrint("\n %s (MDL @ %p): \r\n", msg, mdl);
while (mdl){
#if defined(SPECIAL_WIN98SE_BUILD) || defined(SPECIAL_WINME_BUILD)
PVOID thisBuf = MmGetSystemAddressForMdl(mdl);
#else
PVOID thisBuf = MmGetSystemAddressForMdlSafe(mdl, NormalPoolPriority);
#endif
ULONG thisBufLen = MmGetMdlByteCount(mdl);
if (thisBuf) {
DbgShowBytes(" <MDL buffer>", thisBuf, thisBufLen);
}
mdl = mdl->Next;
}
}
}
DbgDumpPacketList(PUCHAR msg, PLIST_ENTRY listHead)
{
PLIST_ENTRY listEntry;
USBPACKET *packet;
ULONG timeNow = DbgGetSystemTime_msec();
DbgPrint("\n %s: ", msg);
for (listEntry = listHead->Flink; listEntry != listHead; listEntry = listEntry->Flink){
packet = CONTAINING_RECORD(listEntry, USBPACKET, listEntry);
DbgPrint("\n packet #%d @%p - buf @%p, len=%xh, (msg:%xh), age=%d msec", packet->packetId, packet, packet->dataBuffer, packet->dataBufferCurrentLength, *(PULONG)packet->dataBuffer, timeNow-packet->timeStamp);
}
}
VOID DbgDumpPacketStates(ADAPTEREXT *adapter)
{
if (dbgDumpPktStatesOnEmpty){
KIRQL oldIrql;
KeAcquireSpinLock(&adapter->adapterSpinLock, &oldIrql);
DbgPrint("\n *** USB8023 RAN OUT OF PACKETS, dumping packet states: *** ");
DbgDumpPacketList("PENDING READ packets", &adapter->usbPendingReadPackets);
DbgDumpPacketList("PENDING WRITE packets", &adapter->usbPendingWritePackets);
DbgDumpPacketList("COMPLETED READ packets", &adapter->usbCompletedReadPackets);
DbgDumpPacketList("FREE packets", &adapter->usbFreePacketPool);
DbgPrint("\n hit 'g' to continue ...");
DbgBreakPoint();
KeReleaseSpinLock(&adapter->adapterSpinLock, oldIrql);
}
}
#endif