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//////////////////////////////////////////////////////////////////////

//

// Copyright (c) 2004 Xilinx, Inc.  All rights reserved. 

// Xilinx, Inc. 

//

// XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A 

// COURTESY TO YOU.  BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS 

// ONE POSSIBLE   IMPLEMENTATION OF THIS FEATURE, APPLICATION OR 

// STANDARD, XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION 

// IS FREE FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE 

// FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION. 

// XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO 

// THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO 

// ANY WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE 

// FROM CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY 

// AND FITNESS FOR A PARTICULAR PURPOSE. 

//

// $Header: /home/marcus/revision_ctrl_test/oc_cvs/cvs/mb-jpeg/microblaze_0/include/_profile_timer_hw.h,v 1.1 2006-06-23 18:59:00 quickwayne Exp $

// $Id: _profile_timer_hw.h,v 1.1 2006-06-23 18:59:00 quickwayne Exp $

//

// _program_timer_hw.h:

//      Timer related functions

//

//////////////////////////////////////////////////////////////////////

#ifndef _PROFILE_TIMER_HW_H

#define _PROFILE_TIMER_HW_H

#include "profile.h"

#ifdef PROC_PPC

#include "xexception_l.h"

#include "xtime_l.h"

#include "xpseudo_asm.h"

#endif

#ifdef TIMER_CONNECT_INTC

#include "xintc_l.h"

#include "xintc.h"

#endif  // TIMER_CONNECT_INTC

#ifndef PPC_PIT_INTERRUPT

#include "xtmrctr_l.h"

#endif

extern unsigned int timer_clk_ticks ;

//--------------------------------------------------------------------

// PowerPC Target - Timer related functions

//--------------------------------------------------------------------

#ifdef PROC_PPC

#ifdef PPC_PIT_INTERRUPT

unsigned long timer_lo_clk_ticks ;      // Clk ticks when Timer is disabled in CG

#endif

//--------------------------------------------------------------------

// Disable the Timer - During Profiling

//

// For PIT Timer - 

//      1. XTime_PITDisableInterrupt() ;        

//      2. Store the remaining timer clk tick

//      3. Stop the PIT Timer

//--------------------------------------------------------------------

#ifdef PPC_PIT_INTERRUPT

#define disable_timer()                 \

        {                               \

                unsigned long val;      \

                val=mfspr(XREG_SPR_TCR);        \

                mtspr(XREG_SPR_TCR, val & ~XREG_TCR_PIT_INTERRUPT_ENABLE);      \

                timer_lo_clk_ticks = mfspr(XREG_SPR_PIT);                       \

                mtspr(XREG_SPR_PIT, 0);  \

        }

#else

#define disable_timer()                 \

        {                               \

        XTmrCtr_mDisable(PROFILE_TIMER_BASEADDR, 0 ); \

        }

#endif

//--------------------------------------------------------------------

// Enable the Timer

//

// For PIT Timer - 

//      1. Load the remaining timer clk ticks

//      2. XTime_PITEnableInterrupt() ; 

//--------------------------------------------------------------------

#ifdef PPC_PIT_INTERRUPT

#define enable_timer()                          \

        {                                       \

                unsigned long val;              \

                val=mfspr(XREG_SPR_TCR);        \

                mtspr(XREG_SPR_PIT, timer_lo_clk_ticks);        \

                mtspr(XREG_SPR_TCR, val | XREG_TCR_PIT_INTERRUPT_ENABLE); \

        }

#else

#define enable_timer()                                          \

        {                                                       \

                XTmrCtr_mEnable(PROFILE_TIMER_BASEADDR, 0 );     \

        }

#endif

//--------------------------------------------------------------------

// Send Ack to Timer Interrupt

//

// For PIT Timer -

//      1. Load the timer clk ticks

//      2. Enable AutoReload and Interrupt

//      3. Clear PIT Timer Status bits

//--------------------------------------------------------------------

#ifdef PPC_PIT_INTERRUPT

#define timer_ack()                                                     \

        {                                                               \

                unsigned long val;                                      \

                mtspr(XREG_SPR_PIT, timer_clk_ticks);                   \

                mtspr(XREG_SPR_TSR, XREG_TSR_PIT_INTERRUPT_STATUS);     \

                val=mfspr(XREG_SPR_TCR);                                \

                mtspr(XREG_SPR_TCR, val| XREG_TCR_PIT_INTERRUPT_ENABLE| XREG_TCR_AUTORELOAD_ENABLE); \

        }

#else

#define timer_ack()                             \

        {                                               \

                unsigned int csr;                       \

                csr = XTmrCtr_mGetControlStatusReg(PROFILE_TIMER_BASEADDR, 0);   \

                XTmrCtr_mSetControlStatusReg(PROFILE_TIMER_BASEADDR, 0, csr);    \

        }

#endif

//--------------------------------------------------------------------

#endif  // PROC_PPC

//--------------------------------------------------------------------

//--------------------------------------------------------------------

// MicroBlaze Target - Timer related functions

//--------------------------------------------------------------------

#ifdef PROC_MICROBLAZE

//--------------------------------------------------------------------

// Disable the Timer during Call-Graph Data collection

//

//--------------------------------------------------------------------

#define disable_timer()                                 \

        {                                               \

                XTmrCtr_mDisable(PROFILE_TIMER_BASEADDR, 0 );    \

        }

//--------------------------------------------------------------------

// Enable the Timer after Call-Graph Data collection

//

//--------------------------------------------------------------------

#define enable_timer()                                  \

        {                                               \

                XTmrCtr_mEnable(PROFILE_TIMER_BASEADDR, 0 ); \

        }

//--------------------------------------------------------------------

// Send Ack to Timer Interrupt

//

//--------------------------------------------------------------------

#define timer_ack()                             \

        {                                               \

                unsigned int csr;                       \

                csr = XTmrCtr_mGetControlStatusReg(PROFILE_TIMER_BASEADDR, 0);   \

                XTmrCtr_mSetControlStatusReg(PROFILE_TIMER_BASEADDR, 0, csr);    \

        }

//--------------------------------------------------------------------

#endif  // PROC_MICROBLAZE

//--------------------------------------------------------------------

#endif