VOID
SoundUnload(
IN OUT PDRIVER_OBJECT pDriverObject
)
/*++
Routine Description:
Arguments:
pGDI - Pointer to global data
Return Value:
NONE
--*/
{
PGLOBAL_DEVICE_INFO pGDI;
PGLOBAL_DEVICE_INFO pGDIFirst;
//
// Find our global data -
// HACK HACK !!! we may the synth stuff
//
pGDI = ((PLOCAL_DEVICE_INFO)pDriverObject->DeviceObject->DeviceExtension)
->pGlobalInfo;
if (pGDI->Key == SYNTH_KEY) {
pGDI = CONTAINING_RECORD((PGLOBAL_SYNTH_INFO)pGDI, GLOBAL_DEVICE_INFO, Synth);
}
pGDIFirst = pGDI;
//
// Write out volume settings
//
do {
if (pGDI->DeviceObject[MixerDevice]) {
SoundSaveMixerSettings(pGDI);
}
pGDI = pGDI->Next;
} while (pGDI != pGDIFirst);
//
// Assume all handles (and therefore interrupts etc) are closed down
//
//
// Delete the things we allocated - devices, Interrupt objects,
// adapter objects. The driver object has a chain of devices
// across it.
//
SoundCleanup(pGDI);
}
void SystemCleanup (void)
{
SoundCleanup();
InputCleanup();
VideoCleanup();
DirCleanup();
TimerCleanup();
//LuaClose();
}
NTSTATUS
DriverEntry(
IN PDRIVER_OBJECT pDriverObject,
IN PUNICODE_STRING RegistryPathName
)
/*++
DriverEntry()
Routine Description:
This routine performs initialization for the sound blaster
device driver when it is first loaded
Arguments:
pDriverObject - Pointer to a driver object.
RegistryPathName - the path to our driver services node
Return Value:
The function value is the final status from the initialization operation.
--*/
{
SOUND_CARD_INSTANCE CardInstance;
NTSTATUS Status;
PGLOBAL_DEVICE_INFO pGDI;
/********************************************************************
*
* Initialize debugging
*
********************************************************************/
#if DBG
DriverName = "SNDBLST";
#endif
#if DBG
if (SoundDebugLevel >= 4) {
DbgBreakPoint();
}
#endif
/********************************************************************
*
* Initialize each card in turn
*
********************************************************************/
CardInstance.PrevGDI = NULL;
CardInstance.pDriverObject = pDriverObject;
/*
** Initialize the driver object dispatch table.
*/
pDriverObject->DriverUnload = SoundUnload;
pDriverObject->MajorFunction[IRP_MJ_CREATE] = SoundDispatch;
pDriverObject->MajorFunction[IRP_MJ_CLOSE] = SoundDispatch;
pDriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = SoundDispatch;
pDriverObject->MajorFunction[IRP_MJ_READ] = SoundDispatch;
pDriverObject->MajorFunction[IRP_MJ_WRITE] = SoundDispatch;
pDriverObject->MajorFunction[IRP_MJ_CLEANUP] = SoundDispatch;
pDriverObject->MajorFunction[IRP_MJ_SHUTDOWN] = SoundShutdown;
Status = SoundEnumSubkeys(RegistryPathName,
PARMS_SUBKEY,
SoundCardInstanceInit,
(PVOID)&CardInstance);
/*
** Save the return statuses
*/
if (CardInstance.PrevGDI) {
pGDI = CardInstance.PrevGDI;
for (;;) {
//
// Save the Driver load status in the registry for the
// User-mode DLL to pick up
//
SoundWriteRegistryDWORD( pGDI->RegistryPathName,
SOUND_REG_CONFIGERROR,
pGDI->LoadStatus);
pGDI = pGDI->Next;
if (pGDI == CardInstance.PrevGDI) {
break;
}
}
}
/*
** If this failed then free everything
*/
if (!NT_SUCCESS(Status)) {
if (CardInstance.PrevGDI) {
SoundCleanup(CardInstance.PrevGDI);
/*
** Log a meaningful error for the one that failed!
*/
}
return Status;
}
return STATUS_SUCCESS;
}
