Source code of Windows XP (NT5)
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/*****************************************************************************
*
* DIHid.c
*
* Copyright (c) 1996 Microsoft Corporation. All Rights Reserved.
*
* Abstract:
*
* WINNT implementation of JOYHID.
*
* Contents:
*
* DIWdm_JoyHidMapping
* JoyReg_JoyIdToDeviceInterface
*
*****************************************************************************/
#include "dinputpr.h"
#undef sqfl
#define sqfl sqflWDM
#include "dijoyhid.h"
/*****************************************************************************
*
* @doc INTERNAL
*
* @func HRESULT EXTERNAL | DIWdm_JoyHidMapping |
*
* Does the work done by JoyHid on Win9x. This function
* maps the Joystick ID to a HID device and talks to the
* HID device to obtain its capabilities.
*
* @parm IN int | idJoy |
*
* The Id of the joystick to be located.
*
* @parm OUT PVXDINITPARAMS | pvip | OPTIONAL
* Address of a VXDINITPARAMS structure that is filled out
* by this function. This is an optional parameter
* and can be NULL
*
* @parm OUT LPDIJOYCONFIG | pcfg |
* Address of a DIJOYCONFIG structure that is filled out
* by this function. This is an optional parameter.
*
* @parm IN OUT LPDIJOYTYPEINFO | pdijti |
* Address of a DIJOYTYPEINFO structure that is filled out
* by this function. This is an optional parameter.
* If passed in, the hws.dwFlags is used to initialize the
* same flags in the DIJOYCONFIG structure.
*
* @returns HRESULT
* Returns a COM error code
*
*****************************************************************************/
/*
* ISSUE-2001/03/29-timgill function uses too much stack space
* This function uses over 4K of stack space!
* This causes the Win9x build to choke looking for _chkstk.
* Hack by forcing caller to pass pcfg and pdijti
*/
HRESULT EXTERNAL
DIWdm_JoyHidMapping
(
IN int idJoy,
OUT PVXDINITPARMS pvip, OPTIONAL
OUT LPDIJOYCONFIG pcfg, OPTIONAL
IN OUT LPDIJOYTYPEINFO pdijti
)
{
HRESULT hres;
PHIDDEVICEINFO phdi;
VXDINITPARMS vip;
// DIJOYCONFIG cfg;
// DIJOYTYPEINFO dijti;
DWORD wCaps = 0;
DIPROPINFO propi;
DIPROPSTRING dips;
DIPROPDWORD dipd;
BOOL fBadCalData = FALSE;
EnterProc(DIWdm_JoyHidMapping, (_ "uxx", idJoy, pvip, pcfg));
// AssertF(InCrit());
if( pvip == NULL )
{
ZeroX(vip);
vip.dwSize = cbX(vip);
pvip = &vip;
}
// AssertF(pcfg != NULL );
// if( pcfg == NULL )
// {
// ZeroX(cfg);
// cfg.dwSize = cbX(cfg);
// pcfg = & cfg;
// }
AssertF(pdijti != NULL );
// if(pdijti == NULL )
// {
// ZeroX(dijti);
// dijti.dwSize = cbX(dijti);
// pdijti = &dijti;
// }
/*
* Copy the type info because JOY_HWS_ISYOKE, JOY_HWS_ISCARCTRL and
* JOY_HWS_ISHEADTRACKER have no simple equivalents in HID so would
* otherwise get lost. No harm done if it's zero.
* Note, the dwFlags is built in pvip then copied elsewhere.
*/
pvip->dwFlags = pdijti->hws.dwFlags;
phdi = phdiFindJoyId(idJoy);
if( phdi != NULL )
{
IDirectInputDeviceCallback *pdcb;
hres = CHid_New(0, &phdi->guid,
&IID_IDirectInputDeviceCallback,
(PPV)&pdcb);
if( SUCCEEDED(hres) )
{
DIDEVCAPS dc;
hres = pdcb->lpVtbl->GetCapabilities(pdcb, &dc );
if( SUCCEEDED(hres) )
{
DIDEVICEINSTANCEW didi;
didi.dwSize = cbX(didi);
hres = pdcb->lpVtbl->GetDeviceInfo(pdcb, &didi);
if( SUCCEEDED(hres) )
{
LPDIDATAFORMAT pdf;
hres = pdcb->lpVtbl->GetDataFormat(pdcb, &pdf);
if( SUCCEEDED(hres) )
{
DIPROPCAL dipc;
DWORD axis, pov = 0;
ZeroBuf(pvip->Usages, 6 * cbX(pvip->Usages[0]));
hres = pdcb->lpVtbl->MapUsage(pdcb, CheckHatswitch->dwUsage, &propi.iobj);
if(SUCCEEDED(hres) )
{
pvip->dwPOV1usage = CheckHatswitch->dwUsage;
pvip->dwFlags |= CheckHatswitch->dwFlags;
wCaps |= CheckHatswitch->dwCaps;
propi.pguid = DIPROP_GRANULARITY;
propi.dwDevType = pdf->rgodf[propi.iobj].dwType;
hres = pdcb->lpVtbl->GetProperty(pdcb, &propi, &dipd.diph);
if( SUCCEEDED( hres ) )
{
if( dipd.dwData >= 9000 ) // 4 directional POV
{
wCaps |= JOYCAPS_POV4DIR;
if( pcfg != NULL ) {
pcfg->hwc.hwv.dwPOVValues[JOY_POVVAL_FORWARD] = JOY_POVFORWARD;
pcfg->hwc.hwv.dwPOVValues[JOY_POVVAL_BACKWARD] = JOY_POVBACKWARD;
pcfg->hwc.hwv.dwPOVValues[JOY_POVVAL_LEFT] = JOY_POVLEFT;
pcfg->hwc.hwv.dwPOVValues[JOY_POVVAL_RIGHT] = JOY_POVRIGHT;
}
} else // Continuous POV
{
wCaps |= JOYCAPS_POVCTS;
}
}
}
for( axis = 0; axis < cA(AxesUsages)-1; axis++ )
{
USAGES *pUse = &AxesUsages[axis];
DWORD dwCurAxisPos = pUse->dwAxisPos;
if( pvip->Usages[dwCurAxisPos] != 0) {
continue;
} else {
int i;
BOOL bHasUsed = FALSE;
for( i = 0; i < (int)dwCurAxisPos; i++ ) {
if( pvip->Usages[i] == pUse->dwUsage ) {
bHasUsed = TRUE;
break;
}
}
if( bHasUsed ) {
continue;
}
}
hres = pdcb->lpVtbl->MapUsage(pdcb, pUse->dwUsage, &propi.iobj);
if(SUCCEEDED(hres) )
{
pvip->Usages[dwCurAxisPos] = pUse->dwUsage;
pvip->dwFlags |= pUse->dwFlags;
wCaps |= pUse->dwCaps;
propi.pguid = DIPROP_CALIBRATION;
propi.dwDevType = pdf->rgodf[propi.iobj].dwType;
hres = pdcb->lpVtbl->GetProperty(pdcb, &propi, &dipc.diph);
if( SUCCEEDED(hres) && pcfg != NULL )
{
#ifdef WINNT
(&pcfg->hwc.hwv.jrvHardware.jpMin.dwX)[dwCurAxisPos]
= dipc.lMin;
(&pcfg->hwc.hwv.jrvHardware.jpMax.dwX)[dwCurAxisPos]
= dipc.lMax;
(&pcfg->hwc.hwv.jrvHardware.jpCenter.dwX)[dwCurAxisPos]
= CCal_Midpoint(dipc.lMin, dipc.lMax);
#else
DIPROPRANGE diprp;
DIPROPRANGE diprl;
propi.pguid = DIPROP_PHYSICALRANGE;
propi.dwDevType = pdf->rgodf[propi.iobj].dwType;
hres = pdcb->lpVtbl->GetProperty(pdcb, &propi, &diprp.diph);
if( SUCCEEDED( hres ) )
{
propi.pguid = DIPROP_LOGICALRANGE;
propi.dwDevType = pdf->rgodf[propi.iobj].dwType;
hres = pdcb->lpVtbl->GetProperty(pdcb, &propi, &diprl.diph);
if( SUCCEEDED( hres ) )
{
LONG lMin, lMax;
lMin = (&pcfg->hwc.hwv.jrvHardware.jpMin.dwX)[dwCurAxisPos]
= CHid_CoordinateTransform( (PLMINMAX)&diprp.lMin, (PLMINMAX)&diprl.lMin, dipc.lMin );
lMax = (&pcfg->hwc.hwv.jrvHardware.jpMax.dwX)[dwCurAxisPos]
= CHid_CoordinateTransform( (PLMINMAX)&diprp.lMin, (PLMINMAX)&diprl.lMin, dipc.lMax );
(&pcfg->hwc.hwv.jrvHardware.jpCenter.dwX)[dwCurAxisPos]
= CCal_Midpoint(lMin, lMax);
if( lMin >= lMax ) {
fBadCalData = TRUE;
break;
}
}
}
#endif
}
}
} //for (axis=0...
} //GetDataFormat
pvip->hres = S_OK;
pvip->dwSize = cbX(*pvip); /* Which version of VJOYD are we? */
pvip->dwFlags |= JOY_HWS_AUTOLOAD; /* Describes the device */
if(didi.wUsage == HID_USAGE_GENERIC_GAMEPAD) {
pvip->dwFlags |= JOY_HWS_ISGAMEPAD;
}
pvip->dwId = idJoy; /* Internal joystick ID */
pvip->dwFirmwareRevision = dc.dwFirmwareRevision;
pvip->dwHardwareRevision = dc.dwHardwareRevision;
pvip->dwFFDriverVersion = dc.dwFFDriverVersion;
pvip->dwFilenameLengths = lstrlen(phdi->pdidd->DevicePath);
pvip->pFilenameBuffer = phdi->pdidd->DevicePath;
//pvip->Usages[6];
//pvip->dwPOV1usage = 0x0;
pvip->dwPOV2usage = 0x0;
pvip->dwPOV3usage = 0x0;
/* Fill all fields of cfg */
if( pcfg != NULL ) {
AssertF(pcfg->dwSize == cbX(*pcfg) );
pcfg->guidInstance = phdi->guid;
pcfg->hwc.hws.dwNumButtons = dc.dwButtons;
pcfg->hwc.hws.dwFlags = pvip->dwFlags;
//pcfg.hwc.hwv.jrvHardware
//pcfg.hwc.hwv.dwPOVValues
pcfg->hwc.hwv.dwCalFlags = 0x0;
if( ( LOWORD(phdi->guidProduct.Data1) == MSFT_SYSTEM_VID )
&&( ( HIWORD(phdi->guidProduct.Data1) >= MSFT_SYSTEM_PID + JOY_HW_PREDEFMIN)
&&( HIWORD(phdi->guidProduct.Data1) < MSFT_SYSTEM_PID + JOY_HW_PREDEFMAX ) ) )
{
pcfg->hwc.dwType = HIWORD(phdi->guidProduct.Data1) - MSFT_SYSTEM_PID;
pcfg->hwc.dwUsageSettings = JOY_US_PRESENT | JOY_US_VOLATILE;
}
else
{
/*
* This value really does not matter much but ideally
* should be greater than or equal to JOY_HW_PREDEFMAX
* Add idJoy for best compatiblity with the old CPLs.
*/
pcfg->hwc.dwType = idJoy + JOY_HW_PREDEFMAX;
pcfg->hwc.dwUsageSettings = JOY_US_PRESENT | JOY_US_VOLATILE | JOY_US_ISOEM;
}
if(pcfg && pvip->Usages[ecRz]) {
pcfg->hwc.dwUsageSettings |= JOY_US_HASRUDDER;
}
pcfg->hwc.dwReserved = 0x0;
/*
* Default gain to nominal max so it does not get written
* to the registry unless it has some other value.
*/
pcfg->dwGain = DI_FFNOMINALMAX;
propi.pguid = DIPROP_FFGAIN;
propi.dwDevType = DIPH_DEVICE;
propi.iobj = 0xFFFFFFFF;
hres = pdcb->lpVtbl->GetProperty(pdcb, &propi, &dipd.diph);
if( SUCCEEDED(hres) )
{
pcfg->dwGain = dipd.dwData;
} else
{
// Failure to get gain is not crutial
hres = S_OK;
}
if( pcfg->hwc.dwType >= JOY_HW_PREDEFMAX )
{
#ifndef UNICODE
char szType[20];
#endif
/*
* This should work, but it doesn't in Win98, bug!
*
* wsprintfW(pcfg->wszType, L"VID_%04X&PID_%04X",
* LOWORD(didi.guidProduct.Data1), HIWORD(didi.guidProduct.Data1));
*/
#ifdef UNICODE
wsprintf(pcfg->wszType, VID_PID_TEMPLATE,
LOWORD(phdi->guidProduct.Data1), HIWORD(phdi->guidProduct.Data1));
#else
wsprintf(szType, VID_PID_TEMPLATE,
LOWORD(phdi->guidProduct.Data1), HIWORD(phdi->guidProduct.Data1));
AToU(pcfg->wszType, cA(pcfg->wszType), szType);
#endif
}
else
{
/*
* Predefined types do not have type strings for the
* uses the callers of this function need.
*/
ZeroX(pcfg->wszType);
}
#ifdef WINNT
// No callout on NT
ZeroX(pcfg->wszCallout);
#else
lstrcpyW( pcfg->wszCallout, L"joyhid.vxd" );
#endif
} // end of filling pcfg's fields
pdijti->dwSize = cbX(*pdijti);
pdijti->hws.dwNumButtons = dc.dwButtons;
pdijti->hws.dwFlags = pvip->dwFlags;
ZeroX(pdijti->clsidConfig);
propi.pguid = DIPROP_INSTANCENAME;
propi.dwDevType = DIPH_DEVICE;
propi.iobj = 0xFFFFFFFF;
hres = pdcb->lpVtbl->GetProperty(pdcb, &propi, &dips.diph);
if( hres != S_OK && lstrlenW(pdijti->wszDisplayName) != 0x0 )
{
// Failure to get friendly name
// We will try and use the OEM name from the registry
lstrcpyW(dips.wsz, pdijti->wszDisplayName);
//pdcb->lpVtbl->SetProperty(pdcb, &propi, &dips.diph);
}else if( SUCCEEDED(hres) )
{
// Use friendly name in the registry
lstrcpyW(pdijti->wszDisplayName, dips.wsz);
hres = S_OK;
}
} // GetDeviceInfo FAILED
} // GetCapabilities FAILED
Invoke_Release(&pdcb);
}
} else // No HID device for JoyID
{
hres = E_FAIL;
}
if( fBadCalData ) {
hres = E_FAIL;
}
ExitProcX(hres);
return hres;
}
/*****************************************************************************
*
* @doc INTERNAL
*
* @func HRESULT | JoyReg_JoyIdToDeviceInterface |
*
* Given a joystick ID number, obtain the device interface
* corresponding to it.
*
* @parm UINT | idJoy |
*
* Joystick ID number, zero-based.
*
* @parm PVXDINITPARMS | pvip |
*
* Receives init parameters from the driver.
*
* @parm LPTSTR | ptszBuf |
*
* A buffer of size <c MAX_PATH> in which the device interface
* path is built.
*
* @returns
* A pointer to the part of the <p ptszBuf> buffer that
* contains the actual device interface path.
*
*****************************************************************************/
LPTSTR EXTERNAL
JoyReg_JoyIdToDeviceInterface_NT
(
IN UINT idJoy,
OUT PVXDINITPARMS pvip,
OUT LPTSTR ptszBuf
)
{
HRESULT hres;
DIJOYCONFIG cfg;
DIJOYTYPEINFO dijti;
DllEnterCrit();
ZeroX(cfg);
ZeroX(dijti);
cfg.dwSize = cbX(cfg);
dijti.dwSize = cbX(dijti);
hres = DIWdm_JoyHidMapping(idJoy, pvip, &cfg, &dijti );
if( SUCCEEDED(hres ) )
{
AssertF( lstrlen(pvip->pFilenameBuffer) < MAX_PATH );
lstrcpy(ptszBuf, pvip->pFilenameBuffer);
}
DllLeaveCrit();
return ptszBuf;
}