_csl_intc.h

来自「dsp在音频处理中的运用」· C头文件 代码 · 共 70 行

/*****************************************************\
 *  Copyright 2003, Texas Instruments Incorporated.  *
 *  All rights reserved.                             *
 *                                                   *
 *  Restricted rights to use, duplicate or disclose  *
 *  this   code   are  granted   through  contract.  *
\*****************************************************/

#ifndef __CSL_INTC_H_
#define __CSL_INTC_H_

#include <csl_intc.h>

#define _CSL_INTC_EVTHANDLER_UNPLUGGED      ((CSL_IntcEventHandler) 0)


/*
 *  The following are the FIQ and IRQ dispatchers that gets plugged to the FIQ
 *  and IRQ exception-vectors on the ARM core, when L<dispatcherInit> is called.
 *  Thus, on reception of an FIQ/IRQ, this dispatcher gets executed, which then
 *  probes the level-1 and level-2 interrupt-controllers to find the source of
 *  the interrupt. It then calls the Interrupt Service Routine ("Event Handler")
 *  corresponding to the interrupt-number, if one is plugged, to service the
 *  interrupt. Before passing on control to the interrupted code, it also
 *  "acknowledges" the receipt of the interrupt to the controllers to enable
 *  the generation of a new FIQ/IRQ.
 */

interrupt
void
    _CSL_intcDispatchFIQ (
        void
);

interrupt
void
    _CSL_intcDispatchIRQ (
        void
);


extern
CSL_BitMask32 *                 _CSL_intcEventAllocMask;


extern
CSL_IntcEventHandlerRecord *    _CSL_intcEventHandlerRecord;


Bool
    _CSL_intcEventAlloc (
        CSL_IntcEventId
);


void
    _CSL_intcEventRelease (
        CSL_IntcEventId eventId
);


Bool
    _CSL_intcChkHighExcpVect (
        void
);


#endif /* __CSL_INTC_H_ */