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https://github.com/reactos/reactos.git
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408 lines
11 KiB
C
408 lines
11 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.c
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* PURPOSE: MPU-401 MIDI device driver
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* PROGRAMMER: Andrew Greenwood
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* UPDATE HISTORY:
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* Sept 26, 2003: Copied from beep.c as template
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* Sept 27, 2003: Implemented MPU-401 init & playback
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*/
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/* INCLUDES ****************************************************************/
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#include <ntddk.h>
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//#include <ntddbeep.h>
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//#define NDEBUG
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#include <debug.h>
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#include "mpu401.h"
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/* INTERNAL VARIABLES ******************************************************/
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ULONG DeviceCount = 0;
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/* FUNCTIONS ***************************************************************/
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static NTSTATUS InitDevice(
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IN PUNICODE_STRING RegistryPath,
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IN PVOID Context)
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{
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// PDEVICE_INSTANCE Instance = Context;
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PDEVICE_OBJECT DeviceObject; // = Context;
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PDEVICE_EXTENSION Parameters; // = DeviceObject->DeviceExtension;
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UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(L"\\Device\\MidiOut0");
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UNICODE_STRING SymlinkName = RTL_CONSTANT_STRING(L"\\??\\MidiOut0");
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// CONFIG Config;
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RTL_QUERY_REGISTRY_TABLE Table[2];
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NTSTATUS s;
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// This is TEMPORARY, to ensure that we don't process more than 1 device.
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// I'll remove this limitation in the future.
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if (DeviceCount > 0)
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{
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DPRINT("Sorry - only 1 device supported by MPU401 driver at present :(\n");
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return STATUS_NOT_IMPLEMENTED;
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}
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DPRINT("Creating IO device\n");
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s = IoCreateDevice(Context, // driverobject
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sizeof(DEVICE_EXTENSION),
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&DeviceName,
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FILE_DEVICE_SOUND, // Correct?
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0,
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FALSE,
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&DeviceObject);
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if (!NT_SUCCESS(s))
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return s;
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DPRINT("Device Extension at 0x%x\n", DeviceObject->DeviceExtension);
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Parameters = DeviceObject->DeviceExtension;
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DPRINT("Creating DOS link\n");
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/* Create the dos device link */
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IoCreateSymbolicLink(&SymlinkName,
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&DeviceName);
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DPRINT("Initializing device\n");
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// DPRINT("Allocating memory for parameters structure\n");
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// Bodged:
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// Parameters = (PDEVICE_EXTENSION)ExAllocatePool(NonPagedPool, sizeof(DEVICE_EXTENSION));
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// DeviceObject->DeviceExtension = Parameters;
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// Parameters = Instance->DriverObject->DriverExtension;
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DPRINT("DeviceObject at 0x%x, DeviceExtension at 0x%x\n", DeviceObject, Parameters);
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if (! Parameters)
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{
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DPRINT("NULL POINTER!\n");
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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// Instance->DriverObject->DriverExtension = Parameters;
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DPRINT("Setting reg path\n");
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Parameters->RegistryPath = RegistryPath;
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// Parameters->DriverObject = Instance->DriverObject;
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DPRINT("Zeroing table memory and setting query routine\n");
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RtlZeroMemory(Table, sizeof(Table));
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Table[0].QueryRoutine = LoadSettings;
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DPRINT("Setting port and IRQ defaults\n");
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Parameters->Port = DEFAULT_PORT;
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Parameters->IRQ = DEFAULT_IRQ;
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// Only to be enabled once we can get support for multiple cards working :)
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/*
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DPRINT("Loading settings from: %S\n", RegistryPath);
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s = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE, RegistryPath, Table,
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&Parameters, NULL);
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*/
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if (! NT_SUCCESS(s))
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return s;
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DPRINT("Port 0x%x IRQ %d\n", Parameters->Port, Parameters->IRQ);
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// Instance->P
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// Enter UART mode (should be done in init phase
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if (! InitUARTMode(Parameters->Port))
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{
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DPRINT("UART mode initialization FAILED!\n");
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// Set state indication somehow
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// Failure - what error code do we give?!
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// return STATUS_????
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}
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DeviceCount ++;
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return STATUS_SUCCESS;
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}
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static NTSTATUS NTAPI
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MPU401Create(PDEVICE_OBJECT DeviceObject,
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PIRP Irp)
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/*
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* FUNCTION: Handles user mode requests
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* ARGUMENTS:
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* DeviceObject = Device for request
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* Irp = I/O request packet describing request
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* RETURNS: Success or failure
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*/
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{
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DPRINT("MPU401Create() called!\n");
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// Initialize the MPU-401?
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// ... do stuff ...
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// Play a note to say we're alive:
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WaitToSend(MPU401_PORT);
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MPU401_WRITE_DATA(MPU401_PORT, 0x90);
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WaitToSend(MPU401_PORT);
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MPU401_WRITE_DATA(MPU401_PORT, 0x50);
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WaitToSend(MPU401_PORT);
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MPU401_WRITE_DATA(MPU401_PORT, 0x7f);
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Irp->IoStatus.Status = STATUS_SUCCESS;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp,
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IO_NO_INCREMENT);
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return(STATUS_SUCCESS);
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}
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static NTSTATUS NTAPI
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MPU401Close(PDEVICE_OBJECT DeviceObject,
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PIRP Irp)
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/*
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* FUNCTION: Handles user mode requests
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* ARGUMENTS:
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* DeviceObject = Device for request
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* Irp = I/O request packet describing request
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* RETURNS: Success or failure
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*/
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{
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PDEVICE_EXTENSION DeviceExtension;
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NTSTATUS Status;
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DPRINT("MPU401Close() called!\n");
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DeviceExtension = DeviceObject->DeviceExtension;
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Status = STATUS_SUCCESS;
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Irp->IoStatus.Status = Status;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp,
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IO_NO_INCREMENT);
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return(Status);
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}
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static NTSTATUS NTAPI
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MPU401Cleanup(PDEVICE_OBJECT DeviceObject,
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PIRP Irp)
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/*
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* FUNCTION: Handles user mode requests
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* ARGUMENTS:
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* DeviceObject = Device for request
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* Irp = I/O request packet describing request
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* RETURNS: Success or failure
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*/
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{
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ULONG Channel;
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DPRINT("MPU401Cleanup() called!\n");
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// Reset the device (should we do this?)
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for (Channel = 0; Channel <= 15; Channel ++)
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{
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// All notes off
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// MPU401_WRITE_MESSAGE(MPU401_PORT, 0xb0 + Channel, 123, 0);
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// All controllers off
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// MPU401_WRITE_MESSAGE(MPU401_PORT, 0xb0 + Channel, 121, 0);
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}
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Irp->IoStatus.Status = STATUS_SUCCESS;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp,
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IO_NO_INCREMENT);
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return(STATUS_SUCCESS);
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}
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static NTSTATUS NTAPI
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MPU401DeviceControl(PDEVICE_OBJECT DeviceObject,
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PIRP Irp)
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/*
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* FUNCTION: Handles user mode requests
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* ARGUMENTS:
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* DeviceObject = Device for request
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* Irp = I/O request packet describing request
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* RETURNS: Success or failure
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*/
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{
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PIO_STACK_LOCATION Stack;
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PDEVICE_EXTENSION DeviceExtension;
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ULONG ByteCount;
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PUCHAR Data;
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DPRINT("MPU401DeviceControl() called!\n");
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DeviceExtension = DeviceObject->DeviceExtension;
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Stack = IoGetCurrentIrpStackLocation(Irp);
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DPRINT("Control code %d [0x%x]\n", Stack->Parameters.DeviceIoControl.IoControlCode,
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Stack->Parameters.DeviceIoControl.IoControlCode);
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switch(Stack->Parameters.DeviceIoControl.IoControlCode)
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{
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case IOCTL_MIDI_PLAY :
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{
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DPRINT("Received IOCTL_MIDI_PLAY\n");
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Data = (PUCHAR) Irp->AssociatedIrp.SystemBuffer;
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DPRINT("Sending %d bytes of MIDI data to 0x%x:\n", Stack->Parameters.DeviceIoControl.InputBufferLength, DeviceExtension->Port);
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for (ByteCount = 0; ByteCount < Stack->Parameters.DeviceIoControl.InputBufferLength; ByteCount ++)
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{
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DPRINT("0x%x ", Data[ByteCount]);
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MPU401_WRITE_BYTE(DeviceExtension->Port, Data[ByteCount]);
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// if (WaitToSend(MPU401_PORT))
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// MPU401_WRITE_DATA(MPU401_PORT, Data[ByteCount]);
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}
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Irp->IoStatus.Status = STATUS_SUCCESS;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return(STATUS_SUCCESS);
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}
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}
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return(STATUS_SUCCESS);
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/*
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DeviceExtension = DeviceObject->DeviceExtension;
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Stack = IoGetCurrentIrpStackLocation(Irp);
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BeepParam = (PBEEP_SET_PARAMETERS)Irp->AssociatedIrp.SystemBuffer;
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Irp->IoStatus.Information = 0;
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if (Stack->Parameters.DeviceIoControl.IoControlCode != IOCTL_BEEP_SET)
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{
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Irp->IoStatus.Status = STATUS_NOT_IMPLEMENTED;
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IoCompleteRequest(Irp,
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IO_NO_INCREMENT);
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return(STATUS_NOT_IMPLEMENTED);
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}
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if ((Stack->Parameters.DeviceIoControl.InputBufferLength != sizeof(BEEP_SET_PARAMETERS))
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|| (BeepParam->Frequency < BEEP_FREQUENCY_MINIMUM)
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|| (BeepParam->Frequency > BEEP_FREQUENCY_MAXIMUM))
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{
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Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
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IoCompleteRequest(Irp,
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IO_NO_INCREMENT);
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return(STATUS_INVALID_PARAMETER);
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}
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DueTime.QuadPart = 0;
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*/
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/* do the beep!! */
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/* DPRINT("Beep:\n Freq: %lu Hz\n Dur: %lu ms\n",
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pbsp->Frequency,
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pbsp->Duration);
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if (BeepParam->Duration >= 0)
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{
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DueTime.QuadPart = (LONGLONG)BeepParam->Duration * -10000;
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KeSetTimer(&DeviceExtension->Timer,
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DueTime,
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&DeviceExtension->Dpc);
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HalMakeBeep(BeepParam->Frequency);
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DeviceExtension->BeepOn = TRUE;
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KeWaitForSingleObject(&DeviceExtension->Event,
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Executive,
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KernelMode,
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FALSE,
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NULL);
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}
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else if (BeepParam->Duration == (DWORD)-1)
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{
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if (DeviceExtension->BeepOn != FALSE)
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{
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HalMakeBeep(0);
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DeviceExtension->BeepOn = FALSE;
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}
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else
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{
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HalMakeBeep(BeepParam->Frequency);
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DeviceExtension->BeepOn = TRUE;
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}
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}
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DPRINT("Did the beep!\n");
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Irp->IoStatus.Status = STATUS_SUCCESS;
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IoCompleteRequest(Irp,
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IO_NO_INCREMENT);
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return(STATUS_SUCCESS);
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*/
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}
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static VOID NTAPI
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MPU401Unload(PDRIVER_OBJECT DriverObject)
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{
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DPRINT("MPU401Unload() called!\n");
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}
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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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/*
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* FUNCTION: Called by the system to initialize the driver
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* ARGUMENTS:
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* DriverObject = object describing this driver
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* RegistryPath = path to our configuration entries
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* RETURNS: Success or failure
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*/
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{
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// PDEVICE_EXTENSION DeviceExtension;
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// PDEVICE_OBJECT DeviceObject;
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// DEVICE_INSTANCE Instance;
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// Doesn't support multiple instances (yet ...)
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NTSTATUS Status;
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DPRINT("MPU401 Device Driver 0.0.1\n");
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// Is this really necessary? Yes! (Talking to myself again...)
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// Instance.DriverObject = DriverObject;
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// previous instance = NULL...
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// DeviceExtension->RegistryPath = RegistryPath;
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DriverObject->Flags = 0;
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DriverObject->MajorFunction[IRP_MJ_CREATE] = MPU401Create;
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DriverObject->MajorFunction[IRP_MJ_CLOSE] = MPU401Close;
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DriverObject->MajorFunction[IRP_MJ_CLEANUP] = MPU401Cleanup;
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DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = MPU401DeviceControl;
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DriverObject->DriverUnload = MPU401Unload;
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// Major hack to just get this damn thing working:
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Status = InitDevice(RegistryPath, DriverObject); // ????
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// DPRINT("Enumerating devices at %wZ\n", RegistryPath);
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// Status = EnumDeviceKeys(RegistryPath, PARMS_SUBKEY, InitDevice, (PVOID)&DeviceObject); // &Instance;
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// check error
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/* set up device extension */
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// DeviceExtension = DeviceObject->DeviceExtension;
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// DeviceExtension->BeepOn = FALSE;
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return(STATUS_SUCCESS);
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}
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/* EOF */
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