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windows-xp/Source/XPSP1/NT/base/tools/kdexts2/hid.c

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/*++
Copyright (c) 1992 Microsoft Corporation
Module Name:
HID.c
Abstract:
WinDbg Extension Api
Author:
Kenneth D. Ray (kenray) June 1997
Environment:
User Mode.
Revision History:
--*/
#include "precomp.h"
typedef union _HID_PPD_FLAGS {
struct {
ULONG InputChannels : 1;
ULONG OutputChannels : 1;
ULONG FeatureChannels : 1;
ULONG LinkCollections : 1;
ULONG FullChannelListing : 1;
ULONG ReportLocation : 1;
ULONG Reserved : 25;
ULONG IgnoreSignature : 1;
};
ULONG64 Flags;
} HID_PPD_FLAGS;
typedef union _HID_FLAGS {
struct {
ULONG FullListing : 1;
ULONG PowerListing : 1;
ULONG HidPDeviceDesc : 1;
ULONG FileListing : 1;
ULONG Reserved : 27;
};
ULONG64 Flags;
} HID_FLAGS;
#define PRINT_FLAGS(value, flag) \
if ((value) & (flag)) { \
dprintf (#flag " "); \
}
//
// Local function declarations
//
VOID HID_DumpPpd (ULONG64 Ppd, HID_PPD_FLAGS Flags);
VOID HID_DumpFDOExt (ULONG64 Fdo);
VOID HID_DumpPDOExt (ULONG64 Pdo);
DECLARE_API( hidppd )
/*++
Routine Description:
Dumps a HID Preparsed Data blob
Arguments:
args - Address flags
Return Value:
None
--*/
{
ULONG64 memLoc=0;
ULONG result;
ULONG size;
HID_PPD_FLAGS flags;
ULONG InSize;
flags.Flags = 0;
if (!*args) {
dprintf ("hidppd <address> [flags]\n");
} else {
if (GetExpressionEx(args, &memLoc, &args)) {
GetExpressionEx(args, &(flags.Flags), &args);
}
}
dprintf ("Dump Ppd %p %x \n", memLoc, (ULONG)flags.Flags);
//
// Get the preparsed data
//
if (GetFieldValue (memLoc, "hidparse!_HIDP_PREPARSED_DATA", "Input.Size", InSize)) {
dprintf ("Could not read hidparse!_HIDP_PREPARSED_DATA @%p\n", memLoc);
return E_INVALIDARG;
}
InitTypeRead(memLoc, hidparse!_HIDP_PREPARSED_DATA);
size = GetTypeSize ("hidparse!_HIDP_PREPARSED_DATA")
+ (GetTypeSize ("hidparse!_HIDP_CHANNEL_DESC")
* ((ULONG) ReadField(Input.Size) + (ULONG) ReadField(Output.Size) + (ULONG) ReadField(Feature.Size)))
+ (GetTypeSize ("hidparse!_HIDP_LINK_COLLECTION_NODE")
* (ULONG) ReadField(LinkCollectionArrayLength));
dprintf ("TOT Size: %x\n", size);
HID_DumpPpd (memLoc, flags);
return S_OK;
}
VOID
HID_DumpChannel (
ULONG64 Channel,
HID_PPD_FLAGS Flags
)
{
InitTypeRead(Channel, hidparse!_HIDP_CHANNEL_DESC);
dprintf ("-------CHANNEL---------\n");
dprintf ("P %x ID %x Col %x Sz %x Cnt %x UMin %x UMax %x ",
(ULONG) ReadField(UsagePage),
(ULONG) ReadField(ReportID),
(ULONG) ReadField(LinkCollection),
(ULONG) ReadField(ReportSize),
(ULONG) ReadField(ReportCount),
(ULONG) ReadField(Range.UsageMin),
(ULONG) ReadField(Range.UsageMax));
if (ReadField(MoreChannels)) {
dprintf ("MoreChannels ");
}
if (ReadField(IsConst)) {
dprintf ("Const ");
}
if (ReadField(IsButton)) {
dprintf ("Button ");
} else {
dprintf ("Value ");
}
if (ReadField(IsAbsolute)) {
dprintf ("Absolute ");
}
if (ReadField(IsAlias)) {
dprintf ("ALIAS! ");
}
dprintf ("\n");
if (Flags.FullChannelListing) {
dprintf ("LinkUP %x LinkU %x SMin %x SMax %x "
"DMin %x DMax %x IndexMin %x IndexMax %x\n",
(ULONG) ReadField(LinkUsagePage),
(ULONG) ReadField(LinkUsage),
(ULONG) ReadField(Range.StringMin),
(ULONG) ReadField(Range.StringMax),
(ULONG) ReadField(Range.DesignatorMin),
(ULONG) ReadField(Range.DesignatorMax),
(ULONG) ReadField(Range.DataIndexMin),
(ULONG) ReadField(Range.DataIndexMax));
if (!ReadField(IsButton)) {
if (ReadField(Data.HasNull)) {
dprintf ("Has Null ");
}
dprintf ("LMin %x LMax %x PMin %x PMax %x \n",
(ULONG) ReadField(Data.LogicalMin),
(ULONG) ReadField(Data.LogicalMax),
(ULONG) ReadField(Data.PhysicalMin),
(ULONG) ReadField(Data.PhysicalMax));
}
}
if (Flags.ReportLocation) {
dprintf ("ByteOffset %x BitOffset %x BitLength %x ByteEnd %x\n",
(ULONG) ReadField(ByteOffset),
(ULONG) ReadField(BitOffset),
(ULONG) ReadField(BitLength),
(ULONG) ReadField(ByteEnd));
}
}
VOID
HID_DumpLink (
ULONG LinkNo,
ULONG64 Node
)
{
InitTypeRead(Node, hidparse!_HIDP_LINK_COLLECTION_NODE);
dprintf ("Link %x: U %x P %x Par %p #C %x NxSib %p 1stC %p ",
LinkNo,
(ULONG) ReadField(LinkUsage),
(ULONG) ReadField(LinkUsagePage),
ReadField(Parent),
(ULONG) ReadField(NumberOfChildren),
ReadField(NextSibling),
ReadField(FirstChild));
if (ReadField(IsAlias)) {
dprintf (" ALIAS\n");
} else {
dprintf ("\n");
}
}
VOID
HID_DumpPpd (
ULONG64 Ppd,
HID_PPD_FLAGS Flags
)
{
ULONG i;
ULONG64 channel;
ULONG64 node;
ULONG SizeOfChannels, DataOff;
if (InitTypeRead(Ppd, hidparse!_HIDP_PREPARSED_DATA)) {
dprintf("Cannot read type hidparse!_HIDP_PREPARSED_DATA at %p\n", Ppd);
return;
}
if (!Flags.IgnoreSignature) {
if ((HIDP_PREPARSED_DATA_SIGNATURE1 != (ULONG) ReadField(Signature1)) ||
(HIDP_PREPARSED_DATA_SIGNATURE2 != (ULONG) ReadField(Signature2))) {
dprintf("Preparsed Data signature does not match, probably aint\n");
return;
}
}
SizeOfChannels = GetTypeSize("hidparse!_HIDP_CHANNEL_DESC");
GetFieldOffset("hidparse!_HIDP_CHANNEL_DESC", "Data", &DataOff);
if (Flags.InputChannels) {
dprintf ("\n========== Input Channels =========\n");
for (i = (ULONG) ReadField(Input.Offset); i < (ULONG) ReadField(Input.Index); i++) {
channel = Ppd + DataOff + SizeOfChannels * i;
HID_DumpChannel (channel, Flags);
}
} else {
dprintf ("Input channels: off %x sz %x indx %x bytelen %x\n",
(ULONG) ReadField(Input.Offset),
(ULONG) ReadField(Input.Size),
(ULONG) ReadField(Input.Index),
(ULONG) ReadField(Input.ByteLen));
}
if (Flags.OutputChannels) {
dprintf ("\n========== Output Channels =========\n");
for (i = (ULONG) ReadField(Output.Offset); i < (ULONG) ReadField(Output.Index); i++) {
channel = Ppd + DataOff + SizeOfChannels * i;
HID_DumpChannel (channel, Flags);
}
} else {
dprintf ("Output channels: off %x sz %x indx %x bytelen %x\n",
(ULONG) ReadField(Output.Offset),
(ULONG) ReadField(Output.Size),
(ULONG) ReadField(Output.Index),
(ULONG) ReadField(Output.ByteLen));
}
if (Flags.FeatureChannels) {
dprintf ("\n========== Feature Channels =========\n");
for (i = (ULONG) ReadField(Feature.Offset); i < (ULONG) ReadField(Feature.Index); i++) {
channel = Ppd + DataOff + SizeOfChannels * i;
HID_DumpChannel (channel, Flags);
}
} else {
dprintf ("Feature channels: off %x sz %x indx %x bytelen %x\n",
(ULONG) ReadField(Feature.Offset),
(ULONG) ReadField(Feature.Size),
(ULONG) ReadField(Feature.Index),
(ULONG) ReadField(Feature.ByteLen));
}
if (Flags.LinkCollections) {
ULONG NodeSize;
dprintf ("\n========== Link Collections =========\n");
node = (ReadField(RawBytes) + ReadField(LinkCollectionArrayOffset));
NodeSize = GetTypeSize("hidparse!_HIDP_LINK_COLLECTION_NODE");
for (i = 0; i < (ULONG) ReadField(LinkCollectionArrayLength); i++, node+=NodeSize) {
HID_DumpLink (i, node);
}
} else {
dprintf ("Link Collections: %x \n",
(ULONG) ReadField(LinkCollectionArrayLength));
}
dprintf ("\n");
}
VOID
HID_DumpHidPDeviceDesc (
ULONG64 Desc,
HID_FLAGS Flags
)
{
HID_PPD_FLAGS ppdFlags;
ULONG result;
ULONG i;
ULONG size;
PVOID col;
PVOID rep;
ULONG CollectionDescLength, ReportIDsLength;
ULONG64 ReportIDs, CollectionDesc;
ULONG SizeofDesc, SizeofRep;
UNREFERENCED_PARAMETER (Flags);
dprintf ("\n*** HID Device Descripton ***\n");
InitTypeRead(Desc, hidparse!_HIDP_DEVICE_DESC);
CollectionDesc = ReadField(CollectionDesc);
ReportIDs = ReadField(ReportIDs);
CollectionDescLength = (ULONG) ReadField(CollectionDescLength);
ReportIDsLength = (ULONG) ReadField(ReportIDsLength);
dprintf ("Col len: %x Report ID Len: %x\n",
CollectionDescLength,
ReportIDsLength);
SizeofDesc = GetTypeSize("hidparse!_HIDP_COLLECTION_DESC");
if (!SizeofDesc) {
dprintf("Cannot find type hidparse!_HIDP_COLLECTION_DESC.\n");
return;
}
SizeofRep = GetTypeSize("hidparse!_HIDP_REPORT_IDS");
if (!SizeofRep) {
dprintf("Cannot find type hidparse!_HIDP_REPORT_IDS.\n");
return;
}
size = CollectionDescLength * SizeofDesc;
col = LocalAlloc (LPTR, size);
if (NULL == col) {
dprintf ("Could not allocate the memory\n");
return;
}
if (!ReadMemory (CollectionDesc, col, size, &result)) {
dprintf ("Could not read Ppd\n");
LocalFree (col);
return;
}
size = ReportIDsLength * SizeofRep;
rep = LocalAlloc (LPTR, size);
if (NULL == rep) {
dprintf ("Could not allocate the memory\n");
LocalFree (col);
return;
}
if (!ReadMemory (ReportIDs, rep, size, &result)) {
dprintf ("Could not read Ppd\n");
LocalFree (col);
LocalFree (rep);
return;
}
LocalFree (col);
LocalFree (rep);
dprintf ("--- Top Collections -----\n");
for (i=0; i < CollectionDescLength; i++) {
InitTypeRead(CollectionDesc + i*SizeofDesc, hidparse!_HIDP_COLLECTION_DESC);
dprintf ("%x: U %x UP %x ColNum %x In %x Out %x Fea %x Ppd %x\n",
i,
(ULONG) ReadField(.Usage),
(ULONG) ReadField(.UsagePage),
(ULONG) ReadField(.CollectionNumber),
(ULONG) ReadField(.InputLength),
(ULONG) ReadField(.OutputLength),
(ULONG) ReadField(.FeatureLength),
(ULONG) ReadField(.PreparsedData));
}
dprintf ("--- Report IDs -----\n");
for (i=0; i < ReportIDsLength; i++) {
InitTypeRead(ReportIDs + i*SizeofRep, hidparse!_HIDP_REPORT_IDS);
dprintf ("%x: ID %x ColNum %x In %x Out %x Fea %x\n",
i,
(ULONG) ReadField(.ReportID),
(ULONG) ReadField(.CollectionNumber),
(ULONG) ReadField(.InputLength),
(ULONG) ReadField(.OutputLength),
(ULONG) ReadField(.FeatureLength));
}
return;
}
VOID
HID_DumpPDOExt (
ULONG64 Pdo
)
{
InitTypeRead(Pdo, hidparse!_HIDCLASS_DEVICE_EXTENSION);
dprintf("\n");
dprintf ("Collection Num %x Collection Index %x PDO %x Name %x \n"
"Fdo Extension %x\n",
(ULONG) ReadField(pdoExt.collectionNum),
(ULONG) ReadField(pdoExt.collectionIndex),
(ULONG) ReadField(pdoExt.pdo),
(ULONG) ReadField(pdoExt.name),
(ULONG) ReadField(pdoExt.deviceFdoExt));
dprintf ("\n");
}
VOID
HID_DumpFDOExt (
ULONG64 Fdo
)
{
ULONG64 object;
ULONG64 fdoExt;
ULONG size;
ULONG i;
ULONG result;
ULONG64 loc;
ULONG64 startLoc;
HID_FLAGS Flags;
ULONG FdoExtOffset;
PVOID collection;
ULONG PtrSize;
ULONG SizeOfClassColl;
ULONG CollectionDescLength;
ULONG64 classCollectionArray, deviceRelations;
ULONG fileExtListOff, fileListOff;
ULONG devCapOff;
InitTypeRead(Fdo, hidparse!_HIDCLASS_DEVICE_EXTENSION);
dprintf("\n");
dprintf("Fdo %p => PDO: %p NextDO %p \n"
"MiniDeviceExt %p DriveExt %p\n",
ReadField(fdoExt.fdo),
ReadField(hidExt.PhysicalDeviceObject),
ReadField(hidExt.NextDeviceObject),
ReadField(hidExt.MiniDeviceExtension),
ReadField(fdoExt.driverExt));
switch ((ULONG) ReadField(fdoExt.state)) {
case DEVICE_STATE_INITIALIZED:
dprintf ("DEVICE_STATE_INITIALIZED: \n");
break;
case DEVICE_STATE_STARTING:
dprintf ("DEVICE_STATE_STARTING: \n");
break;
case DEVICE_STATE_START_SUCCESS:
dprintf ("DEVICE_STATE_START_SUCCESS: \n");
break;
case DEVICE_STATE_START_FAILURE:
dprintf ("DEVICE_STATE_START_FAILURE: \n");
break;
case DEVICE_STATE_STOPPED:
dprintf ("DEVICE_STATE_STOPPED: \n");
break;
case DEVICE_STATE_REMOVING:
dprintf ("DEVICE_STATE_REMOVING: \n");
break;
case DEVICE_STATE_REMOVED:
dprintf ("DEVICE_STATE_REMOVED: \n");
break;
case DEVICE_STATE_SUSPENDED:
dprintf ("DEVICE_STATE_SUSPENDED: \n");
break;
}
dprintf("\nHidDescriptor:: len %x bcd %x numDesc %x repleng %x \n",
(ULONG) ReadField(fdoExt.hidDescriptor.bLength),
(ULONG) ReadField(fdoExt.hidDescriptor.bcdHID),
(ULONG) ReadField(fdoExt.hidDescriptor.bNumDescriptors),
(ULONG) ReadField(fdoExt.hidDescriptor.DescriptorList[0].wReportLength));
dprintf("Raw Desriptor: %x length: %x \n",
(ULONG) ReadField(fdoExt.rawReportDescription),
(ULONG) ReadField(fdoExt.rawReportDescriptionLength));
dprintf("HIDP_DEVICE_DESC: %x\n", (ULONG) ReadField(fdoExt.deviceDesc));
dprintf("Collections: %x Report IDs: %x\n",
(CollectionDescLength = (ULONG) ReadField(fdoExt.deviceDesc.CollectionDescLength)),
(ULONG) ReadField(fdoExt.deviceDesc.ReportIDsLength));
dprintf("Device Relations Array: %p\n", (deviceRelations = ReadField(fdoExt.deviceRelations)));
dprintf("Class Collection Array: %p\n", (classCollectionArray = ReadField(fdoExt.classCollectionArray)));
Flags.Flags = 0x0F;
HID_DumpHidPDeviceDesc (ReadField(fdoExt.deviceDesc), Flags);
PtrSize = DBG_PTR_SIZE;
SizeOfClassColl = GetTypeSize ("HIDCLASS_COLLECTION");
size = (CollectionDescLength) * SizeOfClassColl;
collection = LocalAlloc (0, size);
if (!collection) {
dprintf ("Could not allocate the memory\n");
return;
}
//
// Read entire array so that its cached for each element
//
if (!ReadMemory (classCollectionArray,
collection,
size,
&result)) {
dprintf ("Could not read Collection array\n");
LocalFree (collection);
return;
}
size = (CollectionDescLength + 1)* PtrSize;
GetFieldOffset("HIDCLASS_COLLECTION", "FileExtensionList", &fileExtListOff);
GetFieldOffset("HIDCLASS_FILE_EXTENSION", "FileList", &fileListOff);
dprintf ("------ Children -----\n");
for (i = 0; i < CollectionDescLength; i++) {
ULONG64 objAddr;
ReadPointer(deviceRelations + i* PtrSize, &objAddr);
InitTypeRead(classCollectionArray + i*SizeOfClassColl, hidparse!_HIDCLASS_COLLECTION);
dprintf ("DO: %p: ColNum %x ColIndx %x DevExt %x\n"
" # Opens %x, FileExtList.Flink %p \n"
" PollInterval ms %x, PolledDeviceReadQueue.Flink %p\n"
" SymLinName %x Ppd %x PowerIrp %x\n",
objAddr,
(ULONG) ReadField(CollectionNumber),
(ULONG) ReadField(CollectionIndex),
(ULONG) ReadField(DeviceExtension),
(ULONG) ReadField(NumOpens),
ReadField(FileExtensionList.Flink),
(ULONG) ReadField(PollInterval_msec),
ReadField(polledDeviceReadQueue.Flink),
(ULONG) ReadField(SymbolicLinkName.Buffer),
(ULONG) ReadField(phidDescriptor),
(ULONG) ReadField(powerEventIrp));
dprintf (" DescSize %x polled %x VID %x PID %x Version %x\n",
(ULONG) ReadField(hidCollectionInfo.DescriptorSize),
(ULONG) ReadField(hidCollectionInfo.Polled),
(ULONG) ReadField(hidCollectionInfo.VendorID),
(ULONG) ReadField(hidCollectionInfo.ProductID),
(ULONG) ReadField(hidCollectionInfo.VersionNumber));
loc = ReadField(FileExtensionList.Flink);
startLoc = classCollectionArray + fileExtListOff;
dprintf (" File List %x\n", startLoc);
i=0;
while ((loc != startLoc) && (i++ < 100)) {
ULONG64 Flink;
loc = (loc - fileListOff);
if (GetFieldValue(loc, "hidparse!_HIDCLASS_FILE_EXTENSION", "FileList.Flink", Flink)) {
dprintf ("could not read hidparse!_HIDCLASS_FILE_EXTENSION at %p\n", loc);
LocalFree (collection);
return;
}
InitTypeRead(loc, hidparse!_HIDCLASS_COLLECTION);
dprintf (" FileExt %p ColNum %x fdoExt %x\n"
" PendingIrp.Flink %x Reports.Flink %x\n"
" FILE %x Closing? %x \n",
loc,
(ULONG) ReadField(CollectionNumber),
(ULONG) ReadField(fdoExt),
(ULONG) ReadField(PendingIrpList.Flink),
(ULONG) ReadField(ReportList.Flink),
(ULONG) ReadField(FileObject),
(ULONG) ReadField(Closing));
loc = Flink;
}
}
GetFieldOffset("hidparse!_HIDCLASS_DEVICE_EXTENSION", "fdoExt.deviceCapabilities", &devCapOff);
DumpDeviceCapabilities (Fdo + devCapOff);
LocalFree (collection);
dprintf ("\n");
return;
}
VOID
DevExtHID(
ULONG64 MemLocPtr
)
/*++
Routine Description:
Dump a HID Device extension.
Arguments:
Extension Address of the extension to be dumped.
Return Value:
None.
--*/
{
ULONG isClientPdo, Signature;
ULONG64 MemLoc = MemLocPtr;
dprintf ("Dump HID Extension: %p\n", MemLoc);
if (GetFieldValue (MemLoc, "HIDCLASS_DEVICE_EXTENSION", "isClientPdo", isClientPdo)) {
dprintf ("Could not read HID Extension\n");
}
GetFieldValue (MemLoc, "HIDCLASS_DEVICE_EXTENSION", "Signature", Signature);
if (HID_DEVICE_EXTENSION_SIG != Signature) {
dprintf("HID Extension Signature does not match, probably aint\n");
return;
}
if (isClientPdo)
{
HID_DumpPDOExt(MemLoc);
}
else
{
HID_DumpFDOExt(MemLoc);
}
return;
}