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/*++ BUILD Version: 0001 // Increment this if a change has global effects
Copyright (c) 1990-1993 Microsoft Corporation
Module Name:
ntddmidi.h
Abstract:
This include file defines all constants and types for
accessing an NT wave device.
Author:
Robin Speed (RobinSp) 12-Dec-91
Revision History:
--*/
#ifndef _NTDDMIDI_
#define _NTDDMIDI_
#include <ntddsnd.h> // general sound stuff
//
// Device Name - this string is the name of the device. It is the name
// that when added to the name of the root of the device tree and with
// the device number appended, gives the name of the device required for
// a call to NtOpenFile.
// So for example, if the root is \Device and the Device type is
// MidiIn and the device number is 2, the full name is \Device\MidiIn2
//
#define DD_MIDI_IN_DEVICE_NAME "\\Device\\MidiIn"
#define DD_MIDI_IN_DEVICE_NAME_U L"\\Device\\MidiIn"
#define DD_MIDI_OUT_DEVICE_NAME "\\Device\\MidiOut"
#define DD_MIDI_OUT_DEVICE_NAME_U L"\\Device\\MidiOut"
//
// MIDI device driver IOCTL set
//
#define IOCTL_MIDI_GET_CAPABILITIES CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0001, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_MIDI_SET_STATE CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0002, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_MIDI_GET_STATE CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0003, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_MIDI_SET_VOLUME CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0004, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_MIDI_GET_VOLUME CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0005, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_MIDI_PLAY CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0006, METHOD_NEITHER, FILE_WRITE_ACCESS)
#define IOCTL_MIDI_RECORD CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0007, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_MIDI_CACHE_PATCHES CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0008, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_MIDI_CACHE_DRUM_PATCHES CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0009, METHOD_BUFFERED, FILE_WRITE_ACCESS)
//
// IOCTL used in the debug build only
//
#if DBG
#define IOCTL_MIDI_SET_DEBUG_LEVEL CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0040, METHOD_BUFFERED, FILE_READ_ACCESS)
#endif // DBG
//
// Product Ids - see winmm.h
//
//
// Midi input output buffer format
//
typedef struct {
LARGE_INTEGER Time; // Time when data received
// (in units of 100ns from when
// midi input was started)
UCHAR Data[sizeof(ULONG)]; // Data (at least 4 byts for
// alignment).
} MIDI_DD_INPUT_DATA, *PMIDI_DD_INPUT_DATA;
//
// Midi volume structure
//
typedef struct _MIDI_DD_VOLUME {
ULONG Left;
ULONG Right;
} MIDI_DD_VOLUME, *PMIDI_DD_VOLUME;
//
// Patch array structure
//
//
// Midi cache patches structures
//
typedef struct _MIDI_DD_CACHE_PATCHES {
ULONG Bank;
ULONG Flags;
USHORT Patches[128];
} MIDI_DD_CACHE_PATCHES, *PMIDI_DD_CACHE_PATCHES;
//
// Midi cache drum patches structures
//
typedef struct _MIDI_DD_CACHE_DRUM_PATCHES {
ULONG Patch;
ULONG Flags;
USHORT DrumPatches[128];
} MIDI_DD_CACHE_DRUM_PATCHES, *PMIDI_DD_CACHE_DRUM_PATCHES;
//
// State flags used to set the state of a driver
//
#define MIDI_DD_STOP 0x0001
#define MIDI_DD_PLAY 0x0002 // output devices only
#define MIDI_DD_RECORD 0x0003 // input devices only
#define MIDI_DD_RESET 0x0004
//
// States returned by the get state ioctl
//
#define MIDI_DD_IDLE 0x0000
#define MIDI_DD_STOPPED 0x0001 // stopped
#define MIDI_DD_PLAYING 0x0002 // output devices only
#define MIDI_DD_RECORDING 0x0003 // input devices only
#endif // _NTDDMIDI_
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