626 lines
21 KiB
C
626 lines
21 KiB
C
/*****************************************************************************
|
|
*
|
|
* DIHidDat.c
|
|
*
|
|
* Copyright (c) 1996 Microsoft Corporation. All Rights Reserved.
|
|
*
|
|
* Abstract:
|
|
*
|
|
* HID data management.
|
|
*
|
|
* Contents:
|
|
*
|
|
* CHid_AddDeviceData
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#include "dinputpr.h"
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* The sqiffle for this file.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#define sqfl sqflHidDev
|
|
|
|
#ifdef HID_SUPPORT
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* @doc INTERNAL
|
|
*
|
|
* @method void | CHid | DelDeviceData |
|
|
*
|
|
* Remove an item of device data from the list.
|
|
*
|
|
* We grab the last item and slide it into place, updating
|
|
* the various pointers as we go.
|
|
*
|
|
* @parm PHIDREPORTINFO | phri |
|
|
*
|
|
* The HID report from which the item is being deleted.
|
|
*
|
|
* @parm int | idataDel |
|
|
*
|
|
* The data value being deleted.
|
|
*
|
|
* @parm HIDP_REPORT_TYPE | type |
|
|
*
|
|
* The report type we are mangling with.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void INTERNAL
|
|
CHid_DelDeviceData(PCHID this, PHIDREPORTINFO phri, int idataDel,
|
|
HIDP_REPORT_TYPE type)
|
|
{
|
|
DWORD dwBase = this->rgdwBase[type];
|
|
int iobjDel = phri->rgdata[idataDel].DataIndex + dwBase;
|
|
PHIDOBJCAPS phocDel = &this->rghoc[iobjDel];
|
|
int idataSrc;
|
|
|
|
SquirtSqflPtszV(sqflHidOutput,
|
|
TEXT("DelDeviceData(%d) - cdataUsed = %d, obj=%d"),
|
|
idataDel, phri->cdataUsed, iobjDel);
|
|
|
|
AssertF(idataDel >= 0);
|
|
AssertF(idataDel < phri->cdataUsed);
|
|
AssertF(phri->cdataUsed > 0);
|
|
|
|
/*
|
|
* Wipe out the item being deleted.
|
|
* Remember that the report needs to be rebuilt.
|
|
*/
|
|
AssertF(phocDel->idata == idataDel);
|
|
phocDel->idata = -1;
|
|
phri->fNeedClear = TRUE;
|
|
|
|
/*
|
|
* Slide the top item into its place.
|
|
*/
|
|
idataSrc = (int)--(phri->cdataUsed);
|
|
if (idataSrc > idataDel) {
|
|
int iobjSrc;
|
|
PHIDOBJCAPS phocSrc;
|
|
|
|
AssertF(idataSrc > 0 && idataSrc < phri->cdataMax);
|
|
|
|
iobjSrc = phri->rgdata[idataSrc].DataIndex + dwBase;
|
|
phocSrc = &this->rghoc[iobjSrc];
|
|
|
|
AssertF(phocSrc->idata == idataSrc);
|
|
|
|
phocSrc->idata = idataDel;
|
|
phri->rgdata[idataDel] = phri->rgdata[idataSrc];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* @doc INTERNAL
|
|
*
|
|
* @method void | CHid | ResetDeviceData |
|
|
*
|
|
* Clean out all old device data from the list.
|
|
*
|
|
* @parm PHIDREPORTINFO | phri |
|
|
*
|
|
* The HID report which should be reset.
|
|
*
|
|
* @parm HIDP_REPORT_TYPE | type |
|
|
*
|
|
* The report type we are mangling with.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
void EXTERNAL
|
|
CHid_ResetDeviceData(PCHID this, PHIDREPORTINFO phri, HIDP_REPORT_TYPE type)
|
|
{
|
|
SquirtSqflPtszV(sqflHidOutput,
|
|
TEXT("ResetDeviceData(%d) - cdataUsed = %d"),
|
|
type, phri->cdataUsed);
|
|
|
|
if (phri->cdataUsed) {
|
|
int idata;
|
|
DWORD dwBase = this->rgdwBase[type];
|
|
|
|
phri->fNeedClear = TRUE;
|
|
for (idata = 0; idata < phri->cdataUsed; idata++) {
|
|
int iobj = phri->rgdata[idata].DataIndex + dwBase;
|
|
PHIDOBJCAPS phoc = &this->rghoc[iobj];
|
|
|
|
AssertF(phoc->idata == idata);
|
|
phoc->idata = -1;
|
|
}
|
|
|
|
phri->cdataUsed = 0;
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* @doc INTERNAL
|
|
*
|
|
* @method HRESULT | CHid | AddDeviceData |
|
|
*
|
|
* Add (or replace) a piece of device data to the array.
|
|
*
|
|
* If we are removing a button, then we delete it, because
|
|
* the HID way of talking about a button is "If you don't
|
|
* talk about it, then it isn't set."
|
|
*
|
|
* @parm UINT | uiObj |
|
|
*
|
|
* The object being added.
|
|
*
|
|
* @parm DWORD | dwData |
|
|
*
|
|
* The data value to add.
|
|
*
|
|
* @returns
|
|
*
|
|
* Returns a COM error code. The following error codes are
|
|
* intended to be illustrative and not necessarily comprehensive.
|
|
*
|
|
* <c DI_OK> = <c S_OK>: The operation completed successfully.
|
|
*
|
|
* <c DIERR_REPORTFULL>: Too many items are set in the report.
|
|
* ISSUE-2001/03/29-timgill Need more document clarification
|
|
*
|
|
*****************************************************************************/
|
|
|
|
HRESULT EXTERNAL
|
|
CHid_AddDeviceData(PCHID this, UINT uiObj, DWORD dwData)
|
|
{
|
|
HRESULT hres;
|
|
LPDIOBJECTDATAFORMAT podf;
|
|
|
|
AssertF(uiObj < this->df.dwNumObjs);
|
|
|
|
podf = &this->df.rgodf[uiObj];
|
|
|
|
if (podf->dwType & DIDFT_OUTPUT) {
|
|
PHIDOBJCAPS phoc = &this->rghoc[uiObj];
|
|
PHIDGROUPCAPS pcaps = phoc->pcaps;
|
|
PHIDREPORTINFO phri;
|
|
|
|
// 7/19/2000(a-JiTay): IA64: Use %p format specifier for 32/64-bit pointers.
|
|
SquirtSqflPtszV(sqflHidOutput,
|
|
TEXT("CHid_AddDeviceData(%p, %d, %d) - type %d"),
|
|
this, uiObj, dwData, pcaps->type);
|
|
|
|
/*
|
|
* Decide if it's HidP_Output or HidP_Feature.
|
|
*/
|
|
AssertF(HidP_IsOutputLike(pcaps->type));
|
|
|
|
switch (pcaps->type) {
|
|
case HidP_Output: phri = &this->hriOut; break;
|
|
case HidP_Feature: phri = &this->hriFea; break;
|
|
default: AssertF(0); hres = E_FAIL; goto done;
|
|
}
|
|
|
|
AssertF(phri->cdataUsed <= phri->cdataMax);
|
|
if (phoc->idata == -1) {
|
|
SquirtSqflPtszV(sqflHidOutput,
|
|
TEXT("CHid_AddDeviceData - no iData"));
|
|
|
|
} else {
|
|
AssertF(phoc->idata < phri->cdataUsed);
|
|
AssertF(uiObj == phri->rgdata[phoc->idata].DataIndex +
|
|
this->rgdwBase[pcaps->type]);
|
|
SquirtSqflPtszV(sqflHidOutput,
|
|
TEXT("CHid_AddDeviceData - iData = %d ")
|
|
TEXT("DataIndex = %d"),
|
|
phoc->idata,
|
|
phri->rgdata[phoc->idata].DataIndex);
|
|
}
|
|
|
|
phri->fChanged = TRUE;
|
|
|
|
if (pcaps->IsValue) {
|
|
/*
|
|
* Just swipe the value.
|
|
* The fallthrough code will handle this.
|
|
*/
|
|
} else {
|
|
/*
|
|
* If the button is being deleted, then delete it
|
|
* and that's all.
|
|
*/
|
|
if (dwData == 0) {
|
|
if (phoc->idata >= 0) {
|
|
CHid_DelDeviceData(this, phri, phoc->idata, pcaps->type);
|
|
AssertF(phoc->idata == -1);
|
|
} else {
|
|
SquirtSqflPtszV(sqflHidOutput,
|
|
TEXT("CHid_AddDeviceData - nop"));
|
|
}
|
|
hres = S_OK;
|
|
goto done;
|
|
} else {
|
|
dwData = TRUE; /* HidP_SetData requires this for buttons */
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If there is not already a slot for this item, then
|
|
* find one.
|
|
*/
|
|
if (phoc->idata < 0) {
|
|
if (phri->cdataUsed < phri->cdataMax) {
|
|
USHORT DataIndex;
|
|
|
|
phoc->idata = phri->cdataUsed++;
|
|
|
|
DataIndex = (USHORT)(uiObj - this->rgdwBase[pcaps->type]);
|
|
phri->rgdata[phoc->idata].DataIndex = DataIndex;
|
|
|
|
SquirtSqflPtszV(sqflHidOutput,
|
|
TEXT("CHid_AddDeviceData - create iData = %d ")
|
|
TEXT("DataIndex = %d"),
|
|
phoc->idata,
|
|
DataIndex);
|
|
} else {
|
|
RPF("SendDeviceData: No room for more data");
|
|
hres = DIERR_REPORTFULL;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
AssertF(phri->cdataUsed <= phri->cdataMax);
|
|
AssertF(phoc->idata >= 0 && phoc->idata < phri->cdataUsed);
|
|
AssertF(uiObj == phri->rgdata[phoc->idata].DataIndex +
|
|
this->rgdwBase[pcaps->type]);
|
|
|
|
/*
|
|
* Here it comes... The entire purpose of this function
|
|
* is the following line of code... (Well, not the
|
|
* *entire* purpose, but 90% of it...)
|
|
*/
|
|
phri->rgdata[phoc->idata].RawValue = dwData;
|
|
|
|
SquirtSqflPtszV(sqflHidOutput,
|
|
TEXT("CHid_AddDeviceData - iData(%d) dwData = %d"),
|
|
phoc->idata, dwData);
|
|
|
|
hres = S_OK;
|
|
done:;
|
|
|
|
} else {
|
|
RPF("SendDeviceData: Object %08x is not DIDFT_OUTPUT",
|
|
podf->dwType);
|
|
hres = E_INVALIDARG;
|
|
}
|
|
|
|
return hres;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* @doc INTERNAL
|
|
*
|
|
* @method HRESULT | CHid | SendHIDReport |
|
|
*
|
|
* Build up an output or feature report and send it.
|
|
* If the report has not changed, then do nothing.
|
|
*
|
|
* @parm PHIDREPORTINFO | phri |
|
|
*
|
|
* Describes the HID report we should build.
|
|
*
|
|
* @parm OUTPUTHIDREPORT | OutputHIDReport |
|
|
*
|
|
* Output a HID report to wherever it's supposed to go.
|
|
*
|
|
* @parm HIDP_REPORT_TYPE | type |
|
|
*
|
|
* The report type being sent.
|
|
* <c HidP_Output> or <c HidP_Feature>.
|
|
*
|
|
* @returns
|
|
*
|
|
* Returns a COM error code. The following error codes are
|
|
* intended to be illustrative and not necessarily comprehensive.
|
|
*
|
|
* <c DI_OK> = <c S_OK>: The operation completed successfully
|
|
* and the report is ready to be sent to the device.
|
|
*
|
|
* <c DIERR_REPORTFULL>: Too many items are set in the report.
|
|
*
|
|
* @cb HRESULT CALLBACK | SendHIDReportProc |
|
|
*
|
|
* An internal callback which takes a composed HID report
|
|
* and sends it in the appropriate manner to the device.
|
|
*
|
|
* @parm PCHID | this |
|
|
*
|
|
* The device in question.
|
|
*
|
|
* @parm PHIDREPORTINFO | phri |
|
|
*
|
|
* The report being sent.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
STDMETHODIMP
|
|
CHid_SendHIDReport(PCHID this, PHIDREPORTINFO phri, HIDP_REPORT_TYPE type,
|
|
SENDHIDREPORT SendHIDReport)
|
|
{
|
|
HRESULT hres = S_OK;
|
|
DWORD cdata;
|
|
NTSTATUS stat;
|
|
|
|
if (phri->fChanged) {
|
|
|
|
if (phri->fNeedClear) {
|
|
ZeroMemory(phri->pvReport, phri->cbReport);
|
|
phri->fNeedClear = FALSE;
|
|
}
|
|
|
|
cdata = phri->cdataUsed;
|
|
stat = HidP_SetData(type, phri->rgdata, &cdata, this->ppd,
|
|
phri->pvReport, phri->cbReport);
|
|
if (SUCCEEDED(stat) && (int)cdata == phri->cdataUsed) {
|
|
if ( SUCCEEDED( hres = SendHIDReport(this, phri) ) ) {
|
|
phri->fChanged = FALSE;
|
|
}
|
|
} else if (stat == HIDP_STATUS_BUFFER_TOO_SMALL) {
|
|
hres = DIERR_REPORTFULL;
|
|
} else {
|
|
RPF("SendDeviceData: Unexpected HID failure");
|
|
hres = E_FAIL;
|
|
}
|
|
|
|
} else {
|
|
/* Vacuous success */
|
|
}
|
|
return hres;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* @doc INTERNAL
|
|
*
|
|
* @method NTSTATUS | CHid | ParseData |
|
|
*
|
|
* Parse a single input report and set up the
|
|
* <e CHid.pvStage> buffer to contain the new device state.
|
|
*
|
|
* @parm HIDP_REPORT_TYPE | type |
|
|
*
|
|
* HID report type being parsed.
|
|
*
|
|
* @parm PHIDREPORTINFO | phri |
|
|
*
|
|
* Information that tells us how to parse the report.
|
|
*
|
|
*****************************************************************************/
|
|
|
|
NTSTATUS INTERNAL
|
|
CHid_ParseData(PCHID this, HIDP_REPORT_TYPE type, PHIDREPORTINFO phri)
|
|
{
|
|
NTSTATUS stat = E_FAIL;
|
|
|
|
/*
|
|
* Do this only if there are inputs at all. This avoids
|
|
* annoying boundary conditions.
|
|
*/
|
|
UCHAR uReportId;
|
|
ULONG cdataMax = phri->cdataMax;
|
|
|
|
if (cdataMax && phri->cbReport) {
|
|
|
|
uReportId = *(UCHAR*)phri->pvReport;
|
|
|
|
if( uReportId < this->wMaxReportId[type] &&
|
|
*(this->pEnableReportId[type] + uReportId) )
|
|
{
|
|
|
|
stat = HidP_GetData(type, phri->rgdata, &cdataMax,
|
|
this->ppd, phri->pvReport, phri->cbReport);
|
|
|
|
if (SUCCEEDED(stat)) {
|
|
ULONG idata;
|
|
|
|
/*
|
|
* If we successfully got stuff, then wipe out the old
|
|
* buttons and start with new ones.
|
|
*
|
|
* HID data parsing rules differ from buttons to axes.
|
|
* For buttons, the rule is that if it isn't in the
|
|
* report, then the button isn't presed.
|
|
*
|
|
* Compare axes, where the rule is that if it isn't
|
|
* in the report, then the value is unchanged.
|
|
*
|
|
* To avoid deleting buttons that are reported in reports
|
|
* other than the one just received we check for multiple
|
|
* reports during initialization and if necessary set up mask
|
|
* arrays for the buttons. The mask is an arrays of bytes of
|
|
* the same length as the button data, one for each report
|
|
* that contains any buttons. If the device only has one
|
|
* report there are no mask arrays so we can optimize by just
|
|
* zeroing all the buttons. If the device has multiple
|
|
* reports there is an array of pointers to the mask arrays,
|
|
* if a report has no buttons, the pointer is NULL so no
|
|
* further processing is required. For reports that do have
|
|
* buttons, each byte in the button data is ANDed with the
|
|
* corresponding byte in the mask so that only buttons in
|
|
* the received report are zeroed.
|
|
*/
|
|
if( this->rgpbButtonMasks == NULL )
|
|
{
|
|
/*
|
|
* Only one report so just zero all buttons
|
|
* This is the normal case so it is important that this
|
|
* be done as quickly as possible.
|
|
*/
|
|
ZeroMemory(pvAddPvCb(this->pvStage, this->ibButtonData),
|
|
this->cbButtonData);
|
|
}
|
|
else
|
|
{
|
|
if( this->rgpbButtonMasks[uReportId-1] != NULL )
|
|
{
|
|
/*
|
|
* ISSUE-2001/05/12-MarcAnd Could mask buttons faster
|
|
* If we do this often, we could consider doing masks
|
|
* with multiple bytes in each opperation.
|
|
*/
|
|
|
|
PBYTE pbMask;
|
|
PBYTE pbButtons;
|
|
PBYTE pbButtonEnd = pvAddPvCb(this->pvStage, this->ibButtonData + this->cbButtonData);
|
|
for( pbMask = this->rgpbButtonMasks[uReportId-1],
|
|
pbButtons = pvAddPvCb(this->pvStage, this->ibButtonData);
|
|
pbButtons < pbButtonEnd;
|
|
pbMask++, pbButtons++ )
|
|
{
|
|
*pbButtons &= *pbMask;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* No buttons in this report
|
|
*/
|
|
}
|
|
}
|
|
|
|
for (idata = 0; idata < cdataMax; idata++) {
|
|
|
|
UINT uiObj;
|
|
PHIDGROUPCAPS pcaps;
|
|
|
|
/*
|
|
* Be careful and make sure that HID didn't
|
|
* give us anything with a bogus item index.
|
|
*
|
|
* ISSUE-2001/03/29-timgill Not Feature-friendly.
|
|
*/
|
|
AssertF(this->rgdwBase[HidP_Input] == 0);
|
|
|
|
SquirtSqflPtszV(sqfl | sqflTrace,
|
|
TEXT("HidP_GetData: %2d -> %d"),
|
|
phri->rgdata[idata].DataIndex,
|
|
phri->rgdata[idata].RawValue);
|
|
|
|
uiObj = this->rgdwBase[type] + phri->rgdata[idata].DataIndex;
|
|
|
|
if (uiObj < this->df.dwNumObjs &&
|
|
(pcaps = this->rghoc[uiObj].pcaps) &&
|
|
pcaps->type == type) {
|
|
LPDIOBJECTDATAFORMAT podf;
|
|
LONG lValue = (LONG)phri->rgdata[idata].RawValue;
|
|
|
|
/*
|
|
* Sign-extend the raw value if necessary.
|
|
*/
|
|
if (lValue & pcaps->lMask ) {
|
|
if( pcaps->IsSigned)
|
|
lValue |= pcaps->lMask;
|
|
else
|
|
lValue &= pcaps->lMask;
|
|
}
|
|
|
|
if (HidP_IsOutputLike(pcaps->type)) {
|
|
HRESULT hres;
|
|
hres = CHid_AddDeviceData(this, uiObj, lValue);
|
|
AssertF(SUCCEEDED(hres));
|
|
}
|
|
|
|
podf = &this->df.rgodf[uiObj];
|
|
|
|
if (!pcaps->IsValue) {
|
|
LPBYTE pb = pvAddPvCb(this->pvStage, podf->dwOfs);
|
|
AssertF(lValue);
|
|
*pb = 0x80;
|
|
|
|
} else {
|
|
|
|
LONG UNALIGNED *pl = pvAddPvCb(this->pvStage, podf->dwOfs);
|
|
|
|
// ISSUE-2001/03/29-timgill need to consider how logical/physical mapping can alter scaling
|
|
|
|
if (podf->dwType & DIDFT_RELAXIS) {
|
|
if (pcaps->usGranularity) {
|
|
lValue = -lValue * pcaps->usGranularity;
|
|
}
|
|
|
|
*pl += lValue;
|
|
} else if ( (podf->dwType & DIDFT_ABSAXIS)
|
|
#ifdef WINNT
|
|
|| ((podf->dwType & DIDFT_POV) && pcaps->IsPolledPOV)
|
|
#endif
|
|
) {
|
|
PJOYRANGECONVERT pjrc;
|
|
*pl = lValue;
|
|
|
|
/*
|
|
* Apply the ramp if any.
|
|
*/
|
|
pjrc = this->rghoc[uiObj].pjrc;
|
|
if( pjrc
|
|
&& !( this->pvi->fl & VIFL_RELATIVE ) )
|
|
{
|
|
CCal_CookRange(pjrc, pl);
|
|
}
|
|
} else if (podf->dwType & DIDFT_BUTTON) {
|
|
|
|
/*
|
|
* Current applications do not expect any values
|
|
* other than zero and 0x80. Just in case
|
|
* someone has implemented an analog button the
|
|
* way we had suggested, make sure we any value
|
|
* greater than or equal to half pressed reports
|
|
* 0x80 and anything else reports as zero.
|
|
* Note, out of range values default to zero.
|
|
*/
|
|
if( ( lValue <= pcaps->Logical.Max )
|
|
&& ( ( lValue - pcaps->Logical.Min ) >=
|
|
( ( ( pcaps->Logical.Max - pcaps->Logical.Min ) + 1 ) / 2 ) ) )
|
|
{
|
|
*((PBYTE)pl) = 0x80;
|
|
}
|
|
else
|
|
{
|
|
*((PBYTE)pl) = 0;
|
|
}
|
|
|
|
} else if (podf->dwType & DIDFT_POV) {
|
|
/*
|
|
* For (non-polled) POVs, an out of range value
|
|
* is a NULL aka centered. Otherwise work out
|
|
* the angle from the fraction of the circle.
|
|
*/
|
|
if (lValue < pcaps->Logical.Min ||
|
|
lValue > pcaps->Logical.Max) {
|
|
*pl = JOY_POVCENTERED;
|
|
} else {
|
|
lValue -= pcaps->Logical.Min;
|
|
*pl = lValue * pcaps->usGranularity;
|
|
}
|
|
}
|
|
|
|
}
|
|
} else {
|
|
SquirtSqflPtszV(sqfl | sqflTrace,
|
|
TEXT("HidP_GetData: Unable to use data element"));
|
|
}
|
|
}
|
|
stat = S_OK;
|
|
}
|
|
stat = S_OK;
|
|
}
|
|
} else {
|
|
stat = E_FAIL;
|
|
}
|
|
return stat;
|
|
}
|
|
|
|
#endif
|