_IntSetup Struct Reference

The structure describes the interrupt setup object defined by the interrupt management wrapper in OS Abstraction Layer. More...

#include <osif.h>

Data Fields

Uint8 intVectId

HWI Object number to use for setting up this system event. The valid values for this range between 4 - 15 (both inclusive).

Uint8 sysEvtId [MAX_NUM_SYSEVENTS]

System Event number(s) for which the interrupts need to be setup. The valid values for this range between 4 - 127 (both inclusive).

Uint8 sysEvtCount

Number of system events that need to be mapped to a given DSP interrupt number and be serviced by a specified Interrupt Service Routine (ISR). Valid values for this range between 1 - 128.

void(* pCallbackFxn )(void *pCallbackArg)

The callback function to be triggered when the interrupt occurs, i.e. the ISR. This should not be set to NULL for a successful interrupt setup.

void * pCallbackArg

The arguments that need to be passed to the ISR. Can be NULL.

Uint8 bEnable

Flag to indicate whether to enable/disable the interrupt by default. This flag is valid only when setting up combined interrupts, i.e., multiple system events mapped to a single DSP interrupt number.

Detailed Description

The structure describes the interrupt setup object defined by the interrupt management wrapper in OS Abstraction Layer.

This structure can be used by a driver/such in setting up interrupts using the underlying OS (BIOS) constructs without having to know the details of the OS specific calls. All calls to the interrupt management wrapper require a handle to the structure described below.

The documentation for this struct was generated from the following file:

inc/os/osif.h


Data Fields
Uint8	intVectId
	HWI Object number to use for setting up this system event. The valid values for this range between 4 - 15 (both inclusive).
Uint8	sysEvtId [MAX_NUM_SYSEVENTS]
	System Event number(s) for which the interrupts need to be setup. The valid values for this range between 4 - 127 (both inclusive).
Uint8	sysEvtCount
	Number of system events that need to be mapped to a given DSP interrupt number and be serviced by a specified Interrupt Service Routine (ISR). Valid values for this range between 1 - 128.
void(*	pCallbackFxn )(void *pCallbackArg)
	The callback function to be triggered when the interrupt occurs, i.e. the ISR. This should not be set to NULL for a successful interrupt setup.
void *	pCallbackArg
	The arguments that need to be passed to the ISR. Can be NULL.
Uint8	bEnable
	Flag to indicate whether to enable/disable the interrupt by default. This flag is valid only when setting up combined interrupts, i.e., multiple system events mapped to a single DSP interrupt number.