bsplocal.h

这是单板上DPRAM的驱动程序

/* @(#) pSOSystem PowerPC/V2.2.2: bsps/ads8xxV2/src/bsplocal.h 2.4 97/09/29 15:45:57 */
/***********************************************************************/
/*                                                                     */
/*   MODULE:  bsplocal.h                                               */
/*   DATE:    97/09/29                                                 */
/*   PURPOSE: Declarations of functions and variables local to the BSP */
/*                                                                     */
/*---------------------------------------------------------------------*/
/*                                                                     */
/*           Copyright 1991 - 1997, Integrated Systems, Inc.           */
/*                      ALL RIGHTS RESERVED                            */
/*                                                                     */
/*   Permission is hereby granted to licensees of Integrated Systems,  */
/*   Inc. products to use or abstract this computer program for the    */
/*   sole purpose of implementing a product based on Integrated        */
/*   Systems, Inc. products.   No other rights to reproduce, use,      */
/*   or disseminate this computer program, whether in part or in       */
/*   whole, are granted.                                               */
/*                                                                     */
/*   Integrated Systems, Inc. makes no representation or warranties    */
/*   with respect to the performance of this computer program, and     */
/*   specifically disclaims any responsibility for any damages,        */
/*   special or consequential, connected with the use of this program. */
/*                                                                     */
/*---------------------------------------------------------------------*/
/*                                                                     */
/*                                                                     */
/***********************************************************************/

/*=====================================================================*/
/* Directory bsps/devices/powerpc contains BSP code which is specific  */
/* to the PowerPC processor but is otherwise hardware-independent.     */
/*=====================================================================*/

/*---------------------------------------------------------------------*/
/* cache.s: Cache-manipulation functions                               */
/*---------------------------------------------------------------------*/
extern void SysIcacheInit(void);
extern void SysDcacheInit(unsigned long mode);
extern void SysDcacheFlush(void *offset, unsigned long length);
extern void SysIcacheInv(void *offset, unsigned long length);
extern void SysDcacheInv(void *offset, unsigned long length);
extern unsigned long SysDcacheInhibit(void);
extern void SysIcacheInhibit(void);
extern UINT SysIcacheGetState(void);
extern UINT SysDcacheGetState(void);

/*---------------------------------------------------------------------*/
/* decrmntr.c: Timer driver using the decrementer                      */
/*---------------------------------------------------------------------*/
/* extern void RtcInit (struct ioparms *p); */
/* extern void Delay100ms(void); */

/*---------------------------------------------------------------------*/
/* isr_a.s: Assembly-language portion of Interrupt Service Routine     */
/*---------------------------------------------------------------------*/
extern void (*ptrPsosEnter)(void), (*ptrPsosExit)(void);
extern void (*ptrPmontEnter)(void), (*ptrPmontExit)(void);
extern void PsosIsr(void);
extern void PmontIsr(void);
extern void GenIsr(void);

/*---------------------------------------------------------------------*/
/* mcheck.c: C-language portion of Machine Check Exception Handler     */
/*---------------------------------------------------------------------*/
extern void SysHandlerInit(void);
extern int SysAddHandler(unsigned long HandlerType, void (*HandlerAddress)());
extern int SysRemoveHandler(ULONG HandlerType, ULONG HandlerIndex);
extern void SysHandlerLoop(void *ip, void *AccessAddr, ULONG intrLevel,
                    void *ExceptionFramePtr);

/*---------------------------------------------------------------------*/
/* mcheck_a.s: Assembly-language portion of Machine Check Exception    */
/*             Handler                                                 */
/*---------------------------------------------------------------------*/
extern void SysMachChk(void);
extern int setjmp(void *buff);
extern int longjmp(void *buff, int value);

/*---------------------------------------------------------------------*/
/* mmudae.s: Label for Data Access Exception vector                    */
/*---------------------------------------------------------------------*/
extern void dataAccessException(void);

/*---------------------------------------------------------------------*/
/* mmuiae.s: Label for Instruction Access Exception vector             */
/*---------------------------------------------------------------------*/
extern void instAccessException(void);

/*---------------------------------------------------------------------*/
/* reg_rw.s: PowerPC register read/write routines                      */
/*---------------------------------------------------------------------*/
extern unsigned long ppcPVRrd(void);
extern void ppcDECwr(unsigned long value);
extern unsigned long ppcDECrd(void);
extern unsigned long ppc1stbit1(unsigned long value);
extern unsigned long ppcMSRrd(void);
extern void ppcMSRwr(unsigned long value);
extern unsigned long ppcHID0rd(void);
extern void ppcHID0wr(unsigned long value);

/*---------------------------------------------------------------------*/
/* util.s: Miscellaneous utility functions                             */
/*---------------------------------------------------------------------*/
extern unsigned long splx(unsigned long mask);
extern void BspBcopy(unsigned char *src, unsigned char *dest, 
  unsigned long len);
extern void BspBfill(unsigned char *baseAddr, unsigned long len, 
  unsigned char fillVal);
extern unsigned long SafeLongRead(volatile void *address);

/*---------------------------------------------------------------------*/
/* vectors.s: Exception vector setup                                   */
/*---------------------------------------------------------------------*/
extern void SysSetVector(long offset, void (*handler)(), int vectype,
  long enable_mask, unsigned char frametype);


/*=====================================================================*/
/* Code contained in the BSP source directory                          */
/*=====================================================================*/

/*---------------------------------------------------------------------*/
/* board.c: Miscellaneous routines pertaining to the particular board  */
/*---------------------------------------------------------------------*/
extern unsigned long RamSize(void);
extern unsigned long BspRamBase(void);
extern void SysInitFail(const char *string);
extern unsigned long BspCpuType(void);
extern void InitBoard(void);
extern ULONG BspCpuClkRate(void);
extern unsigned long ClrAbortInt(void);
extern ULONG BspCpuRev(void);
extern ULONG BspCpuType(void);
extern ULONG BspCpuClkRate(void);

/*---------------------------------------------------------------------*/
/* init.s: Assembly-language portion of overall hardware init          */
/*---------------------------------------------------------------------*/
extern void HdwInit(void);

/*---------------------------------------------------------------------*/
/* isr.c: C-language portion of Interrupt Service Routine              */
/*---------------------------------------------------------------------*/
extern void IsrMain(unsigned long vector);
extern void IsrInit(void);

/*---------------------------------------------------------------------*/
/* storage.c: Parameter storage and retrieval                          */
/*---------------------------------------------------------------------*/
void StorageRead(unsigned int nbytes, void *start, void *buff);
void StorageWrite(unsigned int nbytes, void *start, void *buff);

/*---------------------------------------------------------------------*/
/*                                                                     */
/*---------------------------------------------------------------------*/