periph.h

56f8300E系列dsp的BOOTloader

/*******************************************************************************
*
* Motorola Inc.
* (c) Copyright 2002 Motorola, Inc.
* ALL RIGHTS RESERVED.
*
* $Element: /project/dsp568_sdk/sdk/src/dsp56838evm/nos/include/periph.h $ 
* $Author: saa $ 
* $Revision: /main/2 $ 
* $VOB: /project/dsp568_sdk $ 
* $OS: solaris $ 
*
* Description:  direct access to pheripheral
*
* Notes:    trick with ArchIO zero address and far V2 pheripheral address
*
******************************************************************************/


/* File: periph.h */

#ifndef __PERIPH_H
#define __PERIPH_H

#include "port.h"
#include "bsp.h"
#include "arch.h"
#include "arch_off.h"


#ifdef __cplusplus
extern "C" {
#endif


/*******************************************************
* Routines for Peripheral Memory Access
********************************************************
*  Parameter usage:
*   Addr - architecture structure field 
*   Mask - bit to manipulate 
*   Data - 16 bit word to assign or access  
********************************************************/

#if defined( BSP_MACRO_ACCESS )
#define periphBitSet(Mask, Addr)        *(Addr + BSP_PERIPH_OFF) |= Mask
#else /* defined( BSP_MACRO_ACCESS ) */
inline void periphBitSet(register UWord16 Mask, register volatile UWord16 * Addr)
{
#if defined( BSP_FARPTR_PATCH )
	register unsigned int Value; 

	asm(move.w  x:(Addr + BSP_PERIPH_BASE),Value);
	asm(or.w    Mask,Value);
	asm(move.w  Value,x:(Addr + BSP_PERIPH_BASE));
#else /* defined( BSP_FARPTR_PATCH ) */
    *(Addr + BSP_PERIPH_OFF) |= Mask;
#endif /* defined( BSP_FARPTR_PATCH ) */
}
#endif /* defined( BSP_MACRO_ACCESS ) */


#if defined( BSP_MACRO_ACCESS )
#define periphBitClear(Mask, Addr)      *(Addr + BSP_PERIPH_OFF) &= ~(Mask)
#else /* defined( BSP_MACRO_ACCESS ) */
inline void periphBitClear(register UWord16 Mask, register volatile UWord16 * Addr)
{
#if defined( BSP_FARPTR_PATCH )
	register unsigned int Value;

	asm(move.w  x:(Addr + BSP_PERIPH_BASE),Value);
	asm(not.w   Mask);
	asm(and.w   Mask,Value);
	asm(move.w  Value,x:(Addr + BSP_PERIPH_BASE));
#else /* defined( BSP_FARPTR_PATCH ) */
    *(Addr + BSP_PERIPH_OFF) &= ~(Mask);
#endif /* defined( BSP_FARPTR_PATCH ) */
}
#endif /* defined( BSP_MACRO_ACCESS ) */


#if defined( BSP_MACRO_ACCESS )
#define periphBitChange(Mask, Addr)     *(Addr + BSP_PERIPH_OFF) ^= Mask
#else /* defined( BSP_MACRO_ACCESS ) */
inline void periphBitChange(register UWord16 Mask, register volatile UWord16 * Addr)
{
#if defined( BSP_FARPTR_PATCH )
	register unsigned int Value;

	asm(move.w  x:(Addr + BSP_PERIPH_BASE),Value);
	asm(eor.w   Mask,Value);
	asm(move.w  Value,x:(Addr + BSP_PERIPH_BASE));
#else /* defined( BSP_FARPTR_PATCH ) */
    *(Addr + BSP_PERIPH_OFF) ^= Mask;
#endif /* defined( BSP_FARPTR_PATCH ) */
}
#endif /* defined( BSP_MACRO_ACCESS ) */


#if defined( BSP_MACRO_ACCESS )
#define periphBitTest(Mask, Addr)       ( *(Addr + BSP_PERIPH_OFF) & (Mask) )
#else /* defined( BSP_MACRO_ACCESS ) */
inline bool periphBitTest(register UWord16 Mask, register volatile UWord16 * Addr)
{
#if defined( BSP_FARPTR_PATCH )
	register unsigned int Value;

	asm(move.w  x:(Addr + BSP_PERIPH_BASE), Value);
	if ((Value & Mask) == 0)
	{
		return false;
	}
	return true;
#else /* defined( BSP_FARPTR_PATCH ) */
    return( *(Addr + BSP_PERIPH_OFF) & (Mask) );
#endif /* defined( BSP_FARPTR_PATCH ) */
}
#endif /* defined( BSP_MACRO_ACCESS ) */


#if defined( BSP_MACRO_ACCESS )
#define periphMemWrite(Data, Addr) ( (*(Addr + BSP_PERIPH_OFF)) = Data )
#else /* defined( BSP_MACRO_ACCESS ) */
inline void periphMemWrite(register UWord16 Data, register volatile UWord16 * Addr)
{
#if defined( BSP_FARPTR_PATCH )
	asm(move.w  Data,X:(Addr + BSP_PERIPH_BASE));
#else /* defined( BSP_FARPTR_PATCH ) */
    ( (*(Addr + BSP_PERIPH_OFF)) = Data );
#endif /* defined( BSP_FARPTR_PATCH ) */
}
#endif /* defined( BSP_MACRO_ACCESS ) */


#if defined( BSP_MACRO_ACCESS )
#define periphMemRead(Addr) ((UWord16)*(Addr + BSP_PERIPH_OFF))
#else /* defined( BSP_MACRO_ACCESS ) */
inline UWord16 periphMemRead(register volatile UWord16 * Addr)
{
#if defined( BSP_FARPTR_PATCH )
	register unsigned int Value;
        
	asm(move.w  X:(Addr + BSP_PERIPH_BASE),Value);
	return Value;
#else /* defined( BSP_FARPTR_PATCH ) */
    return *(Addr + BSP_PERIPH_OFF);
#endif /* defined( BSP_FARPTR_PATCH ) */
}
#endif /* defined( BSP_MACRO_ACCESS ) */


#ifdef __cplusplus
}
#endif

#endif