+++ /dev/null
-/*
- *
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS Sound System
- * FILE: drivers/multimedia/audio/sndblst/sndblst.c
- * PURPOSE: Sound Blaster / Pro / 16 driver
- * PROGRAMMER: Andrew Greenwood (silverblade@reactos.org)
- *
- * UPDATE HISTORY: Feb 25, 2009: New rewrite started
- *
- */
-
-/* DEFINES AND INCLUDES ******************************************************/
-
-#include <ntddk.h>
-#include <windef.h>
-#include <mmsystem.h>
-#include <debug.h>
-
-#define CompleteIrpAndReturn(irp, status) \
- irp->IoStatus.Status = status; \
- irp->IoStatus.Information = 0; \
- IoCompleteRequest(Irp, IO_NO_INCREMENT); \
- return status;
-
-
-/* FORWARD DECLARATIONS *****************************************************/
-
-static VOID NTAPI
-UnloadSoundBlaster(PDRIVER_OBJECT DriverObject);
-
-
-/* DEVICE "DISCOVERY" *******************************************************/
-/* Nb: These need to go in the helper lib */
-
-typedef NTSTATUS (*SOUNDDEVICEENUMERATIONCALLBACK)(
- IN PUNICODE_STRING DeviceRegistryPath);
-
-NTSTATUS
-EnumerateSoundDevices(
- IN PUNICODE_STRING RegistryPath,
- IN PWSTR RegistrySubKey,
- IN SOUNDDEVICEENUMERATIONCALLBACK Callback)
-{
- NTSTATUS Status;
- OBJECT_ATTRIBUTES RegAttributes;
- HKEY MainKeyHandle, ChildKeyHandle;
- UNICODE_STRING UnicodeSubkeyName, DeviceKeyName;
- KEY_BASIC_INFORMATION KeyInfo, *FinalKeyInfo;
- ULONG i = 0, NeededDataLength = 0, FinalDataLength = 0, NameLength = 0;
-
- /* Turn the subkey name into a Unicode string */
- RtlInitUnicodeString(&UnicodeSubkeyName, RegistrySubKey);
-
- /* Open the registry key for the service */
- InitializeObjectAttributes(&RegAttributes,
- RegistryPath,
- OBJ_CASE_INSENSITIVE,
- NULL,
- (PSECURITY_DESCRIPTOR) NULL);
-
- Status = ZwOpenKey(&MainKeyHandle, KEY_READ, &RegAttributes);
-
- if ( ! NT_SUCCESS(Status) )
- {
- DPRINT("Failed to open registry key\n");
- return Status;
- }
-
- /* Open the subkey usually named "Parameters" */
- InitializeObjectAttributes(&RegAttributes,
- &UnicodeSubkeyName,
- OBJ_CASE_INSENSITIVE,
- MainKeyHandle,
- (PSECURITY_DESCRIPTOR) NULL);
-
- Status = ZwOpenKey(&ChildKeyHandle, KEY_ENUMERATE_SUB_KEYS, &RegAttributes);
-
- /* We're done with the main key now */
- ZwClose(MainKeyHandle);
-
- if ( ! NT_SUCCESS(Status) )
- {
- DPRINT("Failed to open registry subkeys for enumeration\n");
- return Status;
- }
-
- /* Enumerate through the device keys */
- while ( ( Status = ZwEnumerateKey(ChildKeyHandle,
- i,
- KeyBasicInformation,
- &KeyInfo,
- sizeof(KEY_BASIC_INFORMATION),
- &NeededDataLength) ) != STATUS_NO_MORE_ENTRIES )
- {
- PWSTR EnumeratedKeyName, StartOfEnumeratedKeyName;
-
- DPRINT("Found subkey %d\n", i);
-
- FinalDataLength = NeededDataLength + FIELD_OFFSET(KEY_BASIC_INFORMATION, Name[0]);
- DPRINT("Allocating %d bytes\n", FinalDataLength);
-
- FinalKeyInfo = (PKEY_BASIC_INFORMATION) ExAllocatePool(PagedPool, FinalDataLength);
-
- if ( ! FinalKeyInfo )
- {
- Status = STATUS_INSUFFICIENT_RESOURCES;
- break;
- }
-
- /* This time we get the real info */
- Status = ZwEnumerateKey(ChildKeyHandle,
- i,
- KeyBasicInformation,
- FinalKeyInfo,
- FinalDataLength,
- &NeededDataLength);
-
- if ( ! NT_SUCCESS(Status) )
- {
- DPRINT("FAILED to enumerate key!\n");
- }
- else
- {
- NameLength = RegistryPath->Length + sizeof(WCHAR) +
- UnicodeSubkeyName.Length + sizeof(WCHAR) +
- FinalKeyInfo->NameLength + sizeof(UNICODE_NULL);
-
- DPRINT("Allocating memory for name (%d bytes)\n", NameLength);
-
- EnumeratedKeyName = (PWSTR) ExAllocatePool(PagedPool, NameLength);
-
- if ( ! EnumeratedKeyName )
- {
- ExFreePool((PVOID)FinalKeyInfo);
- Status = STATUS_INSUFFICIENT_RESOURCES;
- break;
- }
-
- StartOfEnumeratedKeyName = EnumeratedKeyName;
-
- /* Start building the registry path using the service key */
- RtlCopyMemory(EnumeratedKeyName,
- RegistryPath->Buffer,
- RegistryPath->Length);
-
- EnumeratedKeyName += RegistryPath->Length / sizeof(WCHAR);
- EnumeratedKeyName[0] = '\\';
- ++ EnumeratedKeyName;
-
- /* Append the parameters subkey */
- RtlCopyMemory(EnumeratedKeyName,
- RegistrySubKey,
- UnicodeSubkeyName.Length);
-
- EnumeratedKeyName += UnicodeSubkeyName.Length / sizeof(WCHAR);
- EnumeratedKeyName[0] = '\\';
- ++ EnumeratedKeyName;
-
- /* And finally append the enumerated key name */
- RtlCopyMemory(EnumeratedKeyName,
- FinalKeyInfo->Name,
- FinalKeyInfo->NameLength);
-
- EnumeratedKeyName += FinalKeyInfo->NameLength / sizeof(WCHAR);
- EnumeratedKeyName[0] = UNICODE_NULL;
-
- /* Reset pointer */
- EnumeratedKeyName = StartOfEnumeratedKeyName;
-
- /* Convert into a Unicode string for the callback */
- RtlInitUnicodeString(&DeviceKeyName, EnumeratedKeyName);
-
- Callback(&DeviceKeyName);
-
- /* No longer need the key name */
- ExFreePool((PVOID)EnumeratedKeyName);
- EnumeratedKeyName = NULL;
- }
-
- /* No longer need the key info */
- ExFreePool((PVOID)FinalKeyInfo);
- FinalKeyInfo = NULL;
-
- ++ i;
- }
-
- /* We're done with enumeration so close this */
- ZwClose(ChildKeyHandle);
-
- /* This isn't an error */
- if ( Status == STATUS_NO_MORE_ENTRIES )
- {
- Status = STATUS_SUCCESS;
- }
-
- /* No devices configured? */
- if ( i == 0 && Status == STATUS_NO_MORE_ENTRIES )
- {
- Status = STATUS_DEVICE_CONFIGURATION_ERROR;
- }
-
- return Status;
-}
-
-NTSTATUS
-PublishWaveOutDevice(
- IN DWORD HardwareDeviceIndex,
- IN PWSTR BaseDeviceName,
- IN DWORD DeviceIndex,
- IN LPWAVEOUTCAPS Capabilities)
-{
- return STATUS_SUCCESS;
-}
-
-
-typedef struct _SOUND_BLASTER_DEVICE
-{
- DWORD BasePort;
- DWORD MidiUartBasePort;
-
- DWORD Irq;
-
- DWORD DmaChannel_8;
- DWORD DmaChannel_16;
-
- DWORD DspVersion;
-
- DWORD ActualDmaBufferSize;
- DWORD DmaBufferSize;
-} SOUND_BLASTER_DEVICE;
-
-
-NTSTATUS
-AllocateSoundBlasterStructure(OUT SOUND_BLASTER_DEVICE* SoundBlasterDevice)
-{
- return STATUS_NOT_IMPLEMENTED;
-}
-
-/* callback */
-/*
- Configuration options within the registry:
- REG_DWORD Actual Dma Buffer Size 0x00004000
- REG_DWORD Configuration Error 0xffffffff
- REG_DWORD Dma Buffer Size 0x00004000
- REG_DWORD DmaChannel 0x00000001
- REG_DWORD DmaChannel16 0x00000005
- REG_DWORD DSP Version 0x00000405
- REG_DWORD Interrupt 0x00000005
- REG_DWORD Load Type 0x00000000
- REG_BINARY Mixer Settings ??
- REG_DWORD MPU401 Port 0xffffffff
- REG_DWORD Port 0x00000220
-*/
-
-NTSTATUS
-ConfigureSoundBlasterDevice(IN PUNICODE_STRING DeviceRegistryPath)
-{
- OBJECT_ATTRIBUTES RegAttributes;
- NTSTATUS Status = STATUS_SUCCESS;
- HKEY ConfigKeyHandle;
-
- DPRINT("Configuring Sound Blaster (config at %S)\n", DeviceRegistryPath->Buffer);
-
- if ( ! DeviceRegistryPath )
- {
- return STATUS_INVALID_PARAMETER;
- }
-
- /* Open the registry key */
- InitializeObjectAttributes(&RegAttributes,
- DeviceRegistryPath,
- OBJ_CASE_INSENSITIVE,
- NULL,
- (PSECURITY_DESCRIPTOR) NULL);
-
- Status = ZwOpenKey(&ConfigKeyHandle, KEY_READ, &RegAttributes);
-
- if ( ! NT_SUCCESS(Status) )
- {
- DPRINT("Failed to open config registry key\n");
- return Status;
- }
-
- /* Read configuration */
- DPRINT("Reading configuration\n");
-
- //Status = ZwQueryValueKey(ConfigKeyHandle,
-
- return Status;
-}
-
-
-/* IRP DISPATCHERS **********************************************************/
-
-static NTSTATUS NTAPI
-CreateSoundBlaster(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- DPRINT("Sound Blaster driver received IRP_MJ_CREATE\n");
-
- CompleteIrpAndReturn(Irp, STATUS_SUCCESS);
-}
-
-static NTSTATUS NTAPI
-CloseSoundBlaster(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- DPRINT("Sound Blaster driver received IRP_MJ_CLOSE\n");
-
- CompleteIrpAndReturn(Irp, STATUS_SUCCESS);
-}
-
-static NTSTATUS NTAPI
-CleanupSoundBlaster(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- DPRINT("Sound Blaster driver received IRP_MJ_CLEANUP\n");
-
- CompleteIrpAndReturn(Irp, STATUS_SUCCESS);
-}
-
-static NTSTATUS NTAPI
-ControlSoundBlaster(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- DPRINT("Sound Blaster driver received IRP_MJ_CONTROL\n");
-
- CompleteIrpAndReturn(Irp, STATUS_SUCCESS);
-}
-
-static NTSTATUS NTAPI
-WriteToSoundBlaster(
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp)
-{
- DPRINT("Sound Blaster driver received IRP_MJ_WRITE\n");
-
- CompleteIrpAndReturn(Irp, STATUS_SUCCESS);
-}
-
-
-/* DRIVER ENTRYPOINT ********************************************************/
-
-NTSTATUS NTAPI
-DriverEntry(
- IN PDRIVER_OBJECT DriverObject,
- IN PUNICODE_STRING RegistryPath)
-{
- NTSTATUS Status = STATUS_SUCCESS;
-
- DPRINT("Sound Blaster driver by silverblade\n");
-
- DriverObject->Flags = 0;
- DriverObject->MajorFunction[IRP_MJ_CREATE] = CreateSoundBlaster;
- DriverObject->MajorFunction[IRP_MJ_CLOSE] = CloseSoundBlaster;
- DriverObject->MajorFunction[IRP_MJ_CLEANUP] = CleanupSoundBlaster;
- DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = ControlSoundBlaster;
- DriverObject->MajorFunction[IRP_MJ_WRITE] = WriteToSoundBlaster;
- DriverObject->DriverUnload = UnloadSoundBlaster;
-
- EnumerateSoundDevices(RegistryPath, L"Parameters", ConfigureSoundBlasterDevice);
-
- return Status;
-}
-
-static VOID NTAPI
-UnloadSoundBlaster(IN PDRIVER_OBJECT DriverObject)
-{
- DPRINT("Sound Blaster driver is being unloaded\n");
-}
projects / reactos.git / blobdiff