mirror of
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153 lines
4.3 KiB
C
153 lines
4.3 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: services/dd/mpu401/mpu401.h
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* PURPOSE: MPU-401 MIDI device driver header
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* PROGRAMMER: Andrew Greenwood
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* UPDATE HISTORY:
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* Sept 26, 2003: Created
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*/
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#pragma once
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//#include <mmsystem.h>
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//#include <mmddk.h>
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//#include <winioctl.h>
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#include "../../../dll/win32/mmdrv/mmdef.h"
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#define DEFAULT_PORT 0x330
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#define DEFAULT_IRQ 9
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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 MPU401_PORT DEFAULT_PORT
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#define MPU401_IRQ DEFAULT_IRQ
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#define MPU401_TIMEOUT 10000
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/* OBSOLETE - see mmdef.h instead:
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#define IOCTL_SOUND_BASE FILE_DEVICE_SOUND
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// wave base 0
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#define IOCTL_MIDI_BASE 0x0080
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#define IOCTL_MIDI_GET_CAPABILITIES CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0001, METHOD_BUFFERED, FILE_READ_ACCESS)
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#define IOCTL_MIDI_SET_STATE CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0002, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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#define IOCTL_MIDI_GET_STATE CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0003, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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#define IOCTL_MIDI_SET_VOLUME CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0004, METHOD_BUFFERED, FILE_READ_ACCESS)
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#define IOCTL_MIDI_GET_VOLUME CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0005, METHOD_BUFFERED, FILE_READ_ACCESS)
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#define IOCTL_MIDI_PLAY CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0006, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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#define IOCTL_MIDI_RECORD CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0007, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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#define IOCTL_MIDI_CACHE_PATCHES CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0008, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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#define IOCTL_MIDI_CACHE_DRUM_PATCHES CTL_CODE(IOCTL_SOUND_BASE, IOCTL_MIDI_BASE + 0x0009, METHOD_BUFFERED, FILE_WRITE_ACCESS)
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*/
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// The MPU-401 has 2 ports, usually 0x330 and 0x331, which are known as
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// "data" and "status/command", respectively. These macros deal with
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// reading from and writing to these ports:
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#define MPU401_WRITE_DATA(bp, x) WRITE_PORT_UCHAR((PUCHAR) bp, x)
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#define MPU401_READ_DATA(bp) READ_PORT_UCHAR((PUCHAR) bp)
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#define MPU401_WRITE_COMMAND(bp, x) WRITE_PORT_UCHAR((PUCHAR) bp+1, x)
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#define MPU401_READ_STATUS(bp) READ_PORT_UCHAR((PUCHAR) bp+1)
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// Flow control
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#define MPU401_READY_TO_SEND(bp) \
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MPU401_READ_STATUS(bp) & 0x80
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#define MPU401_READY_TO_RECEIVE(bp) \
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MPU401_READ_STATUS(bp) & 0x40
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#define MPU401_WRITE_BYTE(bp, x) \
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if (WaitToSend(bp)) MPU401_WRITE_DATA(bp, x)
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#define MPU401_WRITE_MESSAGE(bp, status, da, db) \
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MPU401_WRITE(bp, status); \
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MPU401_WRITE(bp, da); \
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MPU401_WRITE(bp, db)
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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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PUNICODE_STRING RegistryPath;
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PDRIVER_OBJECT DriverObject;
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ULONG Port;
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ULONG IRQ;
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// KDPC Dpc;
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// KTIMER Timer;
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// KEVENT Event;
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// BOOLEAN BeepOn;
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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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BOOLEAN InitUARTMode(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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NTSTATUS NTAPI
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DriverEntry(PDRIVER_OBJECT DriverObject,
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PUNICODE_STRING RegistryPath);
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