mdprof.c

WinCE 3.0 BSP, 包含Inter SA1110, Intel_815E, Advantech_PCM9574 等

/*++
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.
Copyright (c) 1995, 1996, 1997, 1998  Microsoft Corporation

Module Name:  mdprof.c

Abstract:  
 This file implements the platform specific profiler support 

Functions:


Notes: 

--*/
#include <windows.h>
#include <bldver.h>
#include "nkintr.h"
#include "p2debug.h"
#include "..\..\hal\arm\timer.h"

#include "sa11x0.h"
#include "sa11x0bd.h"

#define	TICKS_25MS	92160
#define	PROF_MULT	500
#define	TICKS_PROF	(TICKS_25MS / PROF_MULT)


extern DWORD GetEPC(void);

int ProfileInterrupt(void);


//BOOL bProfileEnabled=FALSE;				// platform profiler enabled flag
//LPDWORD lpdwProfileBufStart=NULL;		// platform profile buffer start
//LPDWORD lpdwProfileBufNext=NULL;		// platform profile buffer next
//LPDWORD lpdwProfileBufEnd=NULL;			// platform profile buffer end
unsigned	int	ReschedCount;
extern int (*PProfileInterrupt)(void);	// pointer to profiler ISR

extern void ProfilerHit(DWORD);
extern DWORD CurMSec;
#if (CE_MAJOR_VER == 0x0003)
extern DWORD DiffMSec;
#endif

//extern DWORD dwProfileCount;
//extern unsigned int MyEPC;
//extern BOOL bProfileObjCall;			// profile object calls flag
//extern BOOL bProfileKCall;				// profile KCalls flag

void 
OEMProfileTimerEnable(
	DWORD dwUSec
	)
{
#ifdef SA1100
    volatile struct ostreg*const v_pOSTReg = (struct ostreg *)OST_BASE_VIRTUAL;
	
	PProfileInterrupt=ProfileInterrupt;
    v_pOSTReg->osmr[0] = v_pOSTReg->oscr + TICKS_PROF;
    //ost->ossr = OSSR_M_M0; // clear any current interrupt
    TIMER_M0_INT_CLR(1); 

    //ost->oier = OIER_M_E0; // turn on the interrupt
    TIMER_M0_INT_EN(1);

	ReschedCount=PROF_MULT;
#endif

}

void OEMProfileTimerDisable(void) {
#ifdef SA1100
    volatile struct ostreg*const v_pOSTReg = (struct ostreg *)OST_BASE_VIRTUAL;
    v_pOSTReg->osmr[0] = v_pOSTReg->oscr + TICKS_25MS;
    //ost->ossr = OSSR_M_M0; // clear any current interrupt
    TIMER_M0_INT_CLR(1); 
    //ost->oier = OIER_M_E0; // turn on the interrupt
    TIMER_M0_INT_EN(1);
    PProfileInterrupt=NULL;
#endif
}

int ProfileInterrupt(void) {
#ifdef SA1100
    volatile struct ostreg*const v_pOSTReg = (struct ostreg *)OST_BASE_VIRTUAL;
	//
    // Service the timer interrupt. Note that the interrupt interval is
	// hard wired at 25 mSec. (25*3686.4 = 92160)
    //
    v_pOSTReg->osmr[0]  += TICKS_PROF;
    //Clear the interrupt
    //sa1100_ostimer0->ossr = OSSR_M_M0;
    TIMER_M0_INT_CLR(1); 

    ReschedCount--;
	ProfilerHit(GetEPC());
    if (!ReschedCount) {
        CurMSec += 25;
#if (CE_MAJOR_VER == 0x0003)
        DiffMSec += 25;
#endif
        ReschedCount=PROF_MULT;
        return SYSINTR_RESCHED;
    }
#endif
	return SYSINTR_NOP;
}