sndblst.h File Reference

#include <ntddk.h>
#include <debug.h>

Go to the source code of this file.

Data Structures
struct	PDEVICE_EXTENSION
struct	PDEVICE_INSTANCE
Defines
#define	NDEBUG
#define	DEFAULT_PORT   0x220
#define	DEFAULT_IRQ   5
#define	DEFAULT_DMA   1
#define	DEFAULT_BUFSIZE   0x4000
#define	DEFAULT_SAMPLERATE   11025
#define	DEFAULT_BITDEPTH   8
#define	DEFAULT_CHANNELS   1
#define	VALID_IRQS   {5}
#define	MIN_BUFSIZE   0x1000
#define	MAX_BUFSIZE   0x4000
#define	DEVICE_SUBKEY   L"Devices"
#define	PARMS_SUBKEY   L"Parameters"
#define	REGISTRY_PORT   L"Port"
#define	SB_PORT   DEFAULT_PORT
#define	SB_IRQ   DEFAULT_IRQ
#define	SB_DMA   DEFAULT_DMA
#define	SB_BUFSIZE   DEFAULT_BUFSIZE
#define	SB_TIMEOUT   1000000
#define	IOCTL_SOUND_BASE   FILE_DEVICE_SOUND
#define	IOCTL_WAVE_BASE   0x0000
#define	SB_DSP_READY   0xaa
#define	SB_SET_OUTPUT_RATE   0x41
#define	SB_SET_INPUT_RATE   0x42
#define	SB_SET_BLOCK_SIZE   0x48
#define	SB_ENABLE_SPEAKER   0xd1
#define	SB_DISABLE_SPEAKER   0xd3
#define	SB_GET_SPEAKER_STATUS   0xd8
#define	SB_GET_DSP_VERSION   0xe1
#define	SB_WRITE_RESET(bp, x)   WRITE_PORT_UCHAR((PUCHAR) bp+0x6, x)
#define	SB_READ_DATA(bp)   READ_PORT_UCHAR((PUCHAR) bp+0xa)
#define	SB_WRITE_DATA(bp, x)   WRITE_PORT_UCHAR((PUCHAR) bp+0xc, x)
#define	SB_READ_WRITESTATUS(bp)   READ_PORT_UCHAR((PUCHAR) bp+0xc)
#define	SB_READ_READSTATUS(bp)   READ_PORT_UCHAR((PUCHAR) bp+0xe)
#define	SB_READY_TO_SEND(bp)   SB_READ_WRITESTATUS(bp) & 0x80
#define	SB_READY_TO_RECEIVE(bp)   SB_READ_READSTATUS(bp) & 0x80
#define	SB_WRITE_BYTE(bp, x)   if (WaitToSend(bp)) SB_WRITE_DATA(bp, x)
Typedefs
typedef NTSTATUS	REGISTRY_CALLBACK_ROUTINE (PWSTR RegistryPath, PVOID Context)
typedef REGISTRY_CALLBACK_ROUTINE *	PREGISTRY_CALLBACK_ROUTINE
Functions
BOOLEAN	WaitToSend (ULONG BasePort)
BOOLEAN	WaitToReceive (ULONG BasePort)
USHORT	InitSoundCard (ULONG BasePort)
NTSTATUS NTAPI	EnumDeviceKeys (IN PUNICODE_STRING RegistryPath, IN PWSTR SubKey, IN PREGISTRY_CALLBACK_ROUTINE Callback, IN PVOID Context)
NTSTATUS NTAPI	LoadSettings (IN PWSTR ValueName, IN ULONG ValueType, IN PVOID ValueData, IN ULONG ValueLength, IN PVOID Context, IN PVOID EntryContext)
BOOLEAN	CreateDMA (PDEVICE_OBJECT DeviceObject)
VOID	SetOutputSampleRate (ULONG BasePort, ULONG SampleRate)
VOID	EnableSpeaker (ULONG BasePort, BOOLEAN SpeakerOn)
BOOLEAN	IsSpeakerEnabled (ULONG BasePort)
VOID	BeginPlayback (ULONG BasePort, ULONG BitDepth, ULONG Channels, ULONG BlockSize)