+++ /dev/null
-/*
- ReactOS
- Sound Blaster driver
-
- Programmers:
- Andrew Greenwood
-
- Notes:
- Compatible with NT4
-*/
-
-#define NDEBUG
-#include <sndblst.h>
-
-
-/*
- IRP DISPATCH ROUTINES
-*/
-
-NTSTATUS NTAPI
-CreateSoundBlaster(
- PDEVICE_OBJECT DeviceObject,
- PIRP Irp)
-{
- PSOUND_BLASTER_PARAMETERS sb_device = DeviceObject->DeviceExtension;
-
- DPRINT("CreateSoundBlaster() called - extension 0x%x\n", sb_device);
-
- EnableSpeaker(sb_device);
- /*SetOutputSampleRate(sb_device, 22*/
-
- Irp->IoStatus.Status = STATUS_SUCCESS;
- Irp->IoStatus.Information = 0;
-
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
-
- return STATUS_SUCCESS;
-}
-
-NTSTATUS NTAPI
-CloseSoundBlaster(
- PDEVICE_OBJECT DeviceObject,
- PIRP Irp)
-{
- //PSOUND_BLASTER_PARAMETERS sb_device = DeviceObject->DeviceExtension;
-
- DPRINT("CloseSoundBlaster() called\n");
-
- Irp->IoStatus.Status = STATUS_SUCCESS;
- Irp->IoStatus.Information = 0;
-
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
-
- return STATUS_SUCCESS;
-}
-
-NTSTATUS NTAPI
-CleanupSoundBlaster(
- PDEVICE_OBJECT DeviceObject,
- PIRP Irp)
-{
- //PSOUND_BLASTER_PARAMETERS sb_device = DeviceObject->DeviceExtension;
-
- DPRINT("CleanupSoundBlaster() called\n");
-
- Irp->IoStatus.Status = STATUS_SUCCESS;
- Irp->IoStatus.Information = 0;
-
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
-
- return STATUS_SUCCESS;
-}
-
-NTSTATUS NTAPI
-ControlSoundBlaster(
- PDEVICE_OBJECT DeviceObject,
- PIRP Irp)
-{
- PIO_STACK_LOCATION stack;
- //PSOUND_BLASTER_PARAMETERS sb_device = DeviceObject->DeviceExtension;
-
- DPRINT("ControlSoundBlaster() called\n");
-
- stack = IoGetCurrentIrpStackLocation(Irp);
-
- switch ( stack->Parameters.DeviceIoControl.IoControlCode)
- {
- /* TODO */
- };
-
- Irp->IoStatus.Status = STATUS_SUCCESS;
- Irp->IoStatus.Information = 0;
-
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
-
- return STATUS_SUCCESS;
-}
-
-NTSTATUS NTAPI
-WriteSoundBlaster(
- PDEVICE_OBJECT DeviceObject,
- PIRP Irp)
-{
- //PSOUND_BLASTER_PARAMETERS sb_device = DeviceObject->DeviceExtension;
-
- DPRINT("WriteSoundBlaster() called\n");
-
- Irp->IoStatus.Status = STATUS_SUCCESS;
- Irp->IoStatus.Information = 0;
-
- IoCompleteRequest(Irp, IO_NO_INCREMENT);
-
- return STATUS_SUCCESS;
-}
-
-VOID NTAPI
-UnloadSoundBlaster(
- PDRIVER_OBJECT DriverObject)
-{
- DPRINT("Sound Blaster driver unload\n");
-}
-
-NTSTATUS NTAPI
-OpenSubkey(
- PUNICODE_STRING RegistryPath,
- PWSTR Subkey,
- ACCESS_MASK DesiredAccess,
- OUT HANDLE* DevicesKeyHandle)
-{
- NTSTATUS status;
- OBJECT_ATTRIBUTES attribs;
- UNICODE_STRING subkey_name;
- HANDLE key_handle;
-
- /* TODO: Check for NULL ptr in DevicesKeyHandle */
-
- InitializeObjectAttributes(&attribs,
- RegistryPath,
- OBJ_CASE_INSENSITIVE,
- NULL,
- (PSECURITY_DESCRIPTOR) NULL);
-
- status = ZwOpenKey(&key_handle, KEY_READ, &attribs);
-
- if ( ! NT_SUCCESS(status) )
- {
- DPRINT("Couldn't open key %wZ\n", RegistryPath);
- return status;
- }
-
- RtlInitUnicodeString(&subkey_name, Subkey);
-
- InitializeObjectAttributes(&attribs,
- &subkey_name,
- OBJ_CASE_INSENSITIVE,
- key_handle,
- (PSECURITY_DESCRIPTOR) NULL);
-
- status = ZwOpenKey(*DevicesKeyHandle, DesiredAccess, &attribs);
- ZwClose(key_handle);
-
- return status;
-}
-
-
-PWSTR NTAPI
-AllocateRegistryPathInfo(
- PUNICODE_STRING BasePath,
- PUNICODE_STRING ParametersPath,
- PKEY_BASIC_INFORMATION KeyInfo)
-{
- PWSTR name;
- PWSTR pos;
-
- DPRINT("Allocating memory for path info\n");
- name = ExAllocatePool(PagedPool,
- BasePath->Length + sizeof(WCHAR) +
- ParametersPath->Length + sizeof(WCHAR) +
- KeyInfo->NameLength + sizeof(UNICODE_NULL));
-
- if ( ! name )
- return NULL;
-
- DPRINT("Copying info\n");
- pos = name;
-
- RtlCopyMemory((PVOID)Pos, (PVOID)BasePath->Buffer, BasePath->Length);
- pos += BasePath->Length / sizeof(WCHAR);
- pos[0] = '\\';
- pos ++;
-
- RtlCopyMemory((PVOID)Pos, (PVOID)ParametersPath->Buffer, ParametersPath->Length);
- pos += ParametersPath->Length / sizeof(WCHAR);
- pos[0] = '\\';
- pos ++;
-
- RtlCopyMemory((PVOID)Pos, (PVOID)ParametersPath->Buffer, ParametersPath->Length);
- pos += KeyInfo->NameLength / sizeof(WCHAR);
- pos[0] = UNICODE_NULL;
-
- DPRINT("All OK\n");
- return name;
-}
-
-#define FreeRegistryPathInfo(ptr) \
- ExFreePool(ptr)
-
-
-#define TAG_REG_INFO 'RegI'
-#define TAG_REG_NAME 'RegN'
-
-NTSTATUS NTAPI
-EnumerateSubkey(
- PUNICODE_STRING RegistryPath,
- PWSTR Subkey,
- PREGISTRY_CALLBACK_ROUTINE Callback,
- PDRIVER_OBJECT DriverObject)
-{
- NTSTATUS status;
- UNICODE_STRING subkey_name;
- HANDLE devices_key_handle;
-
- ULONG key_index = 0;
- ULONG result_length;
-
- status = OpenSubkey(RegistryPath, Subkey, KEY_ENUMERATE_SUB_KEYS, &devices_key_handle);
-
- if ( ! NT_SUCCESS(status) )
- return status;
-
- while ( TRUE )
- {
- KEY_BASIC_INFORMATION test_info;
- PKEY_BASIC_INFORMATION info;
- ULONG size;
- PWSTR name;
-
- status = ZwEnumerateKey(devices_key_handle,
- key_index,
- KeyBasicInformation,
- &test_info,
- sizeof(test_info),
- &result_length);
-
- if ( status == STATUS_NO_MORE_ENTRIES )
- break;
-
- size = result_length + FIELD_OFFSET(KEY_BASIC_INFORMATION, Name[0]);
-
- info = (PKEY_BASIC_INFORMATION) ExAllocatePoolWithTag(PagedPool, size, TAG_REG_INFO);
-
- if ( ! info )
- {
- DPRINT("Out of memory\n");
- status = STATUS_INSUFFICIENT_RESOURCES;
- break;
- }
-
- status = ZwEnumerateKey(devices_key_handle,
- key_index,
- KeyBasicInformation,
- info,
- size,
- &result_length);
-
- if ( ! NT_SUCCESS(status) )
- {
- DPRINT("Unable to enumerate keys\n");
- ExFreePoolWithTag(info, TAG_REG_INFO);
- status = STATUS_INTERNAL_ERROR;
- break;
- }
-
- /* Is this ok? */
- RtlInitUnicodeString(&subkey_name, Subkey);
-
- name = AllocateRegistryPathInfo(RegistryPath, &subkey_name, info);
-
- if ( ! name )
- {
- DPRINT("Out of memory\n");
- ExFreePoolWithTag(info, TAG_REG_INFO);
- status = STATUS_INSUFFICIENT_RESOURCES;
- break;
- }
-
- ExFreePoolWithTag(info, TAG_REG_INFO);
-
- /* Call the callback */
- status = Callback(DriverObject, name);
-
- FreeRegistryPathInfo(name);
-
- if ( ! NT_SUCCESS(status) )
- {
- DPRINT("Callback FAILED\n");
- break;
- }
-
- key_index ++;
- }
-
- ZwClose(devices_key_handle);
-
- DPRINT("Found %d subkey entries\n", key_index);
-
- if ( ( key_index == 0 ) && ( status == STATUS_NO_MORE_ENTRIES ) )
- return STATUS_DEVICE_CONFIGURATION_ERROR;
-
- if ( status == STATUS_NO_MORE_ENTRIES )
- status = STATUS_SUCCESS;
-
- return status;
-}
-
-#define EnumerateDeviceKeys(path, callback, driver_obj) \
- EnumerateSubkey(path, L"Devices", callback, driver_obj)
-
-
-NTSTATUS
-CreateDeviceName(
- PCWSTR PrePrefix,
- PCWSTR Prefix,
- UCHAR Index,
- PUNICODE_STRING DeviceName)
-{
- UNICODE_STRING number;
- WCHAR number_buffer[5];
- UNICODE_STRING unicode_pre_prefix;
- UNICODE_STRING unicode_prefix;
- ULONG size;
-
- RtlInitUnicodeString(&unicode_pre_prefix, PrePrefix);
- RtlInitUnicodeString(&unicode_prefix, Prefix);
-
- size = unicode_pre_prefix.Length +
- unicode_prefix.Length +
- sizeof(number_buffer) +
- sizeof(UNICODE_NULL);
-
- DeviceName->Buffer = ExAllocatePool(PagedPool, size);
- DeviceName->MaximumLength = (USHORT) size;
-
- if ( ! DeviceName->Buffer )
- return STATUS_INSUFFICIENT_RESOURCES;
-
- RtlCopyUnicodeString(DeviceName, &unicode_pre_prefix);
- RtlAppendUnicodeStringToString(DeviceName, &unicode_prefix);
-
- if ( Index != 255 )
- {
- number.Buffer = number_buffer;
- number.MaximumLength = sizeof(number_buffer);
-
- RtlIntegerToUnicodeString((ULONG) Index, 10, &number);
- RtlAppendUnicodeStringToString(DeviceName, &number);
- }
-
- DeviceName->Buffer[DeviceName->Length / sizeof(UNICODE_NULL)] = UNICODE_NULL;
-
- return STATUS_SUCCESS;
-}
-
-NTSTATUS NTAPI
-InitializeSoundBlaster(
- PDRIVER_OBJECT DriverObject,
- PWSTR RegistryPath)
-{
- NTSTATUS status;
- PDEVICE_OBJECT device_object;
- PSOUND_BLASTER_PARAMETERS parameters = NULL;
- UNICODE_STRING device_name;
- UNICODE_STRING dos_device_name;
-
- UCHAR device_index = 0;
-
- DPRINT("Initializing a Sound Blaster device\n");
-
- /* Change these later */
- status = CreateDeviceName(L"",
- L"\\Device\\WaveOut",
- device_index,
- &device_name);
-
- if ( ! NT_SUCCESS(status) )
- return status;
-
- status = CreateDeviceName(L"\\DosDevices\\",
- L"\\Device\\WaveOut" + wcslen(L"\\Device\\"),
- device_index,
- &dos_device_name);
-
- if ( ! NT_SUCCESS(status) )
- {
- /* TODO */
- return status;
- }
-
- DPRINT("Device: %wZ\n", &device_name);
- DPRINT("Symlink: %wZ\n", &dos_device_name);
-
- /*
- Create the device and DOS symlink
- */
-
- status = IoCreateDevice(DriverObject,
- sizeof(SOUND_BLASTER_PARAMETERS),
- &device_name,
- FILE_DEVICE_SOUND,
- 0,
- FALSE,
- &device_object);
-
- if ( ! NT_SUCCESS(status) )
- return status;
-
- DPRINT("Created a device extension at 0x%x\n", device_object->DeviceExtension);
- parameters = device_object->DeviceExtension;
-
- status = IoCreateSymbolicLink(&dos_device_name, &device_name);
-
- ExFreePool(dos_device_name.Buffer);
- ExFreePool(device_name.Buffer);
-
- if ( ! NT_SUCCESS(status) )
- {
- IoDeleteDevice(device_object);
- device_object = NULL;
- return status;
- }
-
- /* IoRegisterShutdownNotification( */
-
- /*
- Settings
- */
-
- device_object->AlignmentRequirement = FILE_BYTE_ALIGNMENT;
-
- parameters->driver = DriverObject;
- parameters->registry_path = RegistryPath;
- parameters->port = DEFAULT_PORT;
- parameters->irq = DEFAULT_IRQ;
- parameters->dma = DEFAULT_DMA;
- parameters->buffer_size = DEFAULT_BUFFER_SIZE;
-
- /* TODO: Load the settings from the registry */
-
- DPRINT("Port %x IRQ %d DMA %d\n", parameters->port, parameters->irq, parameters->dma);
-
- DPRINT("Resetting the sound card\n");
-
- if ( ! ResetSoundBlaster(parameters) )
- {
- /* TODO */
- return STATUS_UNSUCCESSFUL;
- }
-
- /*
- DPRINT("What kind of SB card is this?\n");
- GetSoundBlasterModel(parameters);
- */
-
- return STATUS_SUCCESS;
-}
-
-
-NTSTATUS NTAPI
-DriverEntry(
- PDRIVER_OBJECT DriverObject,
- PUNICODE_STRING RegistryPath)
-{
- NTSTATUS status;
-
- DPRINT("Sound Blaster driver 0.1 by Silver Blade\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] = WriteSoundBlaster;
- DriverObject->DriverUnload = UnloadSoundBlaster;
-
- DPRINT("Beginning device key enumeration\n");
-
- status = EnumerateDeviceKeys(RegistryPath, *InitializeSoundBlaster, DriverObject);
-
- return status;
-}
projects / reactos.git / blobdiff