/******************************************************************************
*  Filename:       interrupt.h
*  Revised:        $Date: 2013-01-25 10:58:16 +0100 (Fri, 25 Jan 2013) $
*  Revision:       $Revision: 9248 $
*
*  Description:    Prototypes for the NVIC Interrupt Controller Driver.
*
*  Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
*
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*
*    Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
*
*    Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
*    Neither the name of Texas Instruments Incorporated nor the names of
*    its contributors may be used to endorse or promote products derived
*    from this software without specific prior written permission.
*
*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
*  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
*  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
*  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
*  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
*  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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*  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************/

#ifndef __INTERRUPT_H__
#define __INTERRUPT_H__

//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif

#include "hw_types.h"
  
//*****************************************************************************
//
// Macro to generate an interrupt priority mask based on the number of bits
// of priority supported by the hardware.
//
//*****************************************************************************
#define INT_PRIORITY_MASK       ((0xFF << (8 - NUM_PRIORITY_BITS)) & 0xFF)

//*****************************************************************************
//
// Prototypes for the APIs.
//
//*****************************************************************************
extern bool IntMasterEnable(void);
extern bool IntMasterDisable(void);
extern void IntRegister(uint32_t ui32Interrupt, void (*pfnHandler)(void));
extern void IntUnregister(uint32_t ui32Interrupt);
extern void IntPriorityGroupingSet(uint32_t ui32Bits);
extern uint32_t IntPriorityGroupingGet(void);
extern void IntPrioritySet(uint32_t ui32Interrupt,
                           uint8_t ui8Priority);
extern int32_t IntPriorityGet(uint32_t ui32Interrupt);
extern void IntEnable(uint32_t ui32Interrupt);
extern void IntDisable(uint32_t ui32Interrupt);
extern void IntPendSet(uint32_t ui32Interrupt);
extern void IntPendClear(uint32_t ui32Interrupt);
extern void IntPriorityMaskSet(uint32_t ui32PriorityMask);
extern uint32_t IntPriorityMaskGet(void);

extern void IntAltMapEnable(void);
extern void IntAltMapDisable(void);
extern bool IntAltMapIsEnabled(void);


//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif

#endif // __INTERRUPT_H__