mirror of
https://github.com/reactos/reactos.git
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173 lines
4.1 KiB
C
173 lines
4.1 KiB
C
/*
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: drivers/dd/sndblst/sndblst.h
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* PURPOSE: Sound Blaster driver header
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* PROGRAMMER: Andrew Greenwood
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* UPDATE HISTORY:
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* Sept 28, 2003: Created
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*/
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#pragma once
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#include <ntddk.h>
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#define NDEBUG
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#include <debug.h>
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#define DEFAULT_PORT 0x220
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#define DEFAULT_IRQ 5
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#define DEFAULT_DMA 1
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#define DEFAULT_BUFSIZE 0x4000
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#define DEFAULT_SAMPLERATE 11025
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#define DEFAULT_BITDEPTH 8
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#define DEFAULT_CHANNELS 1
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#define VALID_IRQS {5}
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#define MIN_BUFSIZE 0x1000
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#define MAX_BUFSIZE 0x4000
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#define DEVICE_SUBKEY L"Devices"
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#define PARMS_SUBKEY L"Parameters"
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#define REGISTRY_PORT L"Port"
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// At the moment, we just support a single device with fixed parameters:
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#define SB_PORT DEFAULT_PORT
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#define SB_IRQ DEFAULT_IRQ
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#define SB_DMA DEFAULT_DMA
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#define SB_BUFSIZE DEFAULT_BUFSIZE
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#define SB_TIMEOUT 1000000
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#define IOCTL_SOUND_BASE FILE_DEVICE_SOUND
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#define IOCTL_WAVE_BASE 0x0000 // CORRECT?
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/* #define IOCTL_MIDI_PLAY CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0006, \
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* METHOD_BUFFERED, FILE_WRITE_ACCESS)
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*/
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// Some constants
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#define SB_DSP_READY 0xaa
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// Commands (only the ones we use)
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#define SB_SET_OUTPUT_RATE 0x41 // DSP v4.xx only
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#define SB_SET_INPUT_RATE 0x42 // DSP v4.xx only
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#define SB_SET_BLOCK_SIZE 0x48 // DSP v2.00 +
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#define SB_ENABLE_SPEAKER 0xd1
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#define SB_DISABLE_SPEAKER 0xd3
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#define SB_GET_SPEAKER_STATUS 0xd8 // DSP v2.00 +
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#define SB_GET_DSP_VERSION 0xe1
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// Hmm... These are a weenie bit trickier than MPU401...
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#define SB_WRITE_RESET(bp, x) WRITE_PORT_UCHAR((PUCHAR) bp+0x6, x)
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#define SB_READ_DATA(bp) READ_PORT_UCHAR((PUCHAR) bp+0xa)
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#define SB_WRITE_DATA(bp, x) WRITE_PORT_UCHAR((PUCHAR) bp+0xc, x)
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#define SB_READ_WRITESTATUS(bp) READ_PORT_UCHAR((PUCHAR) bp+0xc)
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#define SB_READ_READSTATUS(bp) READ_PORT_UCHAR((PUCHAR) bp+0xe)
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// Flow control
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#define SB_READY_TO_SEND(bp) \
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SB_READ_WRITESTATUS(bp) & 0x80
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#define SB_READY_TO_RECEIVE(bp) \
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SB_READ_READSTATUS(bp) & 0x80
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#define SB_WRITE_BYTE(bp, x) \
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if (WaitToSend(bp)) SB_WRITE_DATA(bp, x)
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//#define MPU401_READ(bp)
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// if (WaitToRead(bp)) ... ???
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/*
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DEVICE_EXTENSION contains the settings for each individual device
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*/
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typedef struct _DEVICE_EXTENSION
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{
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PWSTR RegistryPath;
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PDRIVER_OBJECT DriverObject;
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ULONG Port;
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ULONG IRQ;
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ULONG DMA;
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ULONG BufferSize;
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PADAPTER_OBJECT Adapter;
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PMDL Mdl;
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PCHAR VirtualBuffer;
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PHYSICAL_ADDRESS Buffer;
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} DEVICE_EXTENSION, *PDEVICE_EXTENSION;
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/*
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DEVICE_INSTANCE contains ???
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*/
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typedef struct _DEVICE_INSTANCE
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{
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// pPrevGDI
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PDRIVER_OBJECT DriverObject;
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} DEVICE_INSTANCE, *PDEVICE_INSTANCE;
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/*
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CONFIG contains device parameters (port/IRQ)
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THIS STRUCTURE IS REDUNDANT
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*/
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//typedef struct _CONFIG
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//{
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// ULONG Port;
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// ULONG IRQ;
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//} CONFIG, *PCONFIG;
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/*
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Some callback typedefs
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*/
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typedef NTSTATUS REGISTRY_CALLBACK_ROUTINE(PWSTR RegistryPath, PVOID Context);
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typedef REGISTRY_CALLBACK_ROUTINE *PREGISTRY_CALLBACK_ROUTINE;
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/*
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Prototypes for functions in portio.c :
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*/
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BOOLEAN WaitToSend(ULONG BasePort);
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BOOLEAN WaitToReceive(ULONG BasePort);
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USHORT InitSoundCard(ULONG BasePort);
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/*
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Prototypes for functions in settings.c :
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*/
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NTSTATUS NTAPI EnumDeviceKeys(
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IN PUNICODE_STRING RegistryPath,
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IN PWSTR SubKey,
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IN PREGISTRY_CALLBACK_ROUTINE Callback,
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IN PVOID Context);
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NTSTATUS NTAPI LoadSettings(
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IN PWSTR ValueName,
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IN ULONG ValueType,
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IN PVOID ValueData,
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IN ULONG ValueLength,
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IN PVOID Context,
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IN PVOID EntryContext);
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BOOLEAN CreateDMA(PDEVICE_OBJECT DeviceObject);
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VOID SetOutputSampleRate(ULONG BasePort, ULONG SampleRate);
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VOID EnableSpeaker(ULONG BasePort, BOOLEAN SpeakerOn);
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BOOLEAN IsSpeakerEnabled(ULONG BasePort);
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VOID BeginPlayback(ULONG BasePort, ULONG BitDepth, ULONG Channels, ULONG BlockSize);
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