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121 lines
3 KiB
C
121 lines
3 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: mkernel/modules/sound/sound.c
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* PURPOSE: SoundBlaster 16 Driver
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* PROGRAMMER: Snatched from David Welch (welch@mcmail.com)
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* Modified for Soundblaster by Robert Bergkvist (fragdance@hotmail.com)
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* UPDATE HISTORY:
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* ??/??/??: Created
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*
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*/
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/* FUNCTIONS **************************************************************/
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#include <ntddk.h>
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#include <string.h>
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#include <devices.h>
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#include "sb16.h"
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#include "dsp.h"
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#include "mixer.h"
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#include "wave.h"
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#define NDEBUG
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#include <debug.h>
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SB16 sb16;
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sb_status sb16_getenvironment(void);
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#if 0
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static NTSTATUS NTAPI Dispatch(PDEVICE_OBJECT DeviceObject, 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 = IoGetCurrentIrpStackLocation(Irp);
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NTSTATUS status;
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switch (Stack->MajorFunction)
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{
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case IRP_MJ_CREATE:
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DPRINT1("(SoundBlaster 16 Driver WaveOut) Creating\n");
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reset_dsp(sb16.base);
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status = STATUS_SUCCESS;
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break;
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case IRP_MJ_CLOSE:
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status = STATUS_SUCCESS;
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break;
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case IRP_MJ_WRITE:
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DPRINT1("(SoundBlaster 16 Driver) Writing %d bytes\n",Stack->Parameters.Write.Length);
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sb16_play((WAVE_HDR*)Irp->UserBuffer);
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status = STATUS_SUCCESS;
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break;
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default:
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status = STATUS_NOT_IMPLEMENTED;
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break;
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}
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Irp->IoStatus.Status = status;
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Irp->IoStatus.Information = 0;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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return(status);
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}
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NTSTATUS ModuleEntry(PDRIVER_OBJECT DriverObject, 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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#if 0
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PDEVICE_OBJECT DeviceObject;
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NTSTATUS ret;
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DPRINT1("SoundBlaster 16 Driver 0.0.1\n");
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if(sb16_getenvironment()!=SB_TRUE)
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{
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DPRINT1("Soundblaster 16 not found\n");
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return 0;
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}
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ret = IoCreateDevice(DriverObject,0,L"\\Device\\WaveOut",FILE_DEVICE_WAVE_OUT,0,FALSE,&DeviceObject);
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if (ret!=STATUS_SUCCESS)
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return(ret);
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DeviceObject->Flags=0;
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DriverObject->MajorFunction[IRP_MJ_CLOSE] = Dispatch;
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DriverObject->MajorFunction[IRP_MJ_CREATE] =Dispatch;
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DriverObject->MajorFunction[IRP_MJ_WRITE] = Dispatch;
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DriverObject->MajorFunction[IRP_MJ_WRITE] = Dispatch;
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DriverObject->DriverUnload = NULL;
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#endif
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return(STATUS_SUCCESS);
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}
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#endif
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sb_status sb16_getenvironment(void)
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{
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if(detect_dsp(&sb16)!=SB_TRUE)
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{
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DPRINT1("Detect DSP failed!!!\n");
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return SB_FALSE;
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}
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DPRINT1("DSP base address 0x%x\n",sb16.base);
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get_irq(&sb16);
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DPRINT1("IRQ: %d\n",sb16.irq);
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get_dma(&sb16);
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DPRINT1("DMA8: 0x%x DMA16: 0x%x\n",sb16.dma8,sb16.dma16);
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return SB_TRUE;
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}
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