interrupt.c

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/*
*/
 
#include <sndblst.h>
 
BOOLEAN
CheckIrq(
    PDEVICE_OBJECT DeviceObject)
{
/*    PSOUND_BLASTER_PARAMETERS parameters = DeviceObject->DriverExtension;*/
 
    /* TODO */
 
    return TRUE;
}
 
BOOLEAN NTAPI
ServiceSoundBlasterInterrupt(
    IN  PKINTERRUPT Interrupt,
    IN  PVOID Context)
{
    DPRINT("* Processing ISR *\n");
    return FALSE;
}
 
NTSTATUS
EnableIrq(
    PDEVICE_OBJECT DeviceObject)
{
    PSOUND_BLASTER_PARAMETERS parameters = DeviceObject->DeviceExtension;
    ULONG vector;
    KIRQL irq_level;
    KAFFINITY affinity;
    NTSTATUS status = STATUS_SUCCESS;
 
    vector = HalGetInterruptVector(Isa,
                                   0,
                                   parameters->irq,
                                   parameters->irq,
                                   &irq_level,
                                   &affinity);
 
    DPRINT("Vector is 0x%x\n", vector);
 
    status = IoConnectInterrupt(&parameters->interrupt,
                                ServiceSoundBlasterInterrupt,
                                DeviceObject,
                                (PKSPIN_LOCK) NULL,
                                vector,
                                irq_level,
                                irq_level,
                                Latched, /* Latched / LevelSensitive */
                                FALSE,  /* shareable */
                                affinity,
                                FALSE);
 
    if ( status == STATUS_INVALID_PARAMETER )
        status = STATUS_DEVICE_CONFIGURATION_ERROR;
 
    return status;
}