drivers/multimedia/audio/sb16_nt4.old/interrupt.c

   1 /*
   2 */
   3
   4 #include <sndblst.h>
   5
   6 BOOLEAN
   7 CheckIrq(
   8     PDEVICE_OBJECT DeviceObject)
   9 {
  10 /*    PSOUND_BLASTER_PARAMETERS parameters = DeviceObject->DriverExtension;*/
  11
  12     /* TODO */
  13
  14     return TRUE;
  15 }
  16
  17 BOOLEAN NTAPI
  18 ServiceSoundBlasterInterrupt(
  19     IN  PKINTERRUPT Interrupt,
  20     IN  PVOID Context)
  21 {
  22     DPRINT("* Processing ISR *\n");
  23     return FALSE;
  24 }
  25
  26 NTSTATUS
  27 EnableIrq(
  28     PDEVICE_OBJECT DeviceObject)
  29 {
  30     PSOUND_BLASTER_PARAMETERS parameters = DeviceObject->DeviceExtension;
  31     ULONG vector;
  32     KIRQL irq_level;
  33     KAFFINITY affinity;
  34     NTSTATUS status = STATUS_SUCCESS;
  35
  36     vector = HalGetInterruptVector(Isa,
  37                                    0,
  38                                    parameters->irq,
  39                                    parameters->irq,
  40                                    &irq_level,
  41                                    &affinity);
  42
  43     DPRINT("Vector is 0x%x\n", vector);
  44
  45     status = IoConnectInterrupt(&parameters->interrupt,
  46                                 ServiceSoundBlasterInterrupt,
  47                                 DeviceObject,
  48                                 (PKSPIN_LOCK) NULL,
  49                                 vector,
  50                                 irq_level,
  51                                 irq_level,
  52                                 Latched, /* Latched / LevelSensitive */
  53                                 FALSE,  /* shareable */
  54                                 affinity,
  55                                 FALSE);
  56
  57     if ( status == STATUS_INVALID_PARAMETER )
  58         status = STATUS_DEVICE_CONFIGURATION_ERROR;
  59
  60     return status;
  61 }