profiler.c

来自「Freescale ARM11系列CPU MX31的WINCE 5.0下的BSP」· C语言 代码 · 共 110 行

//-----------------------------------------------------------------------------
//
//  Copyright (C) 2004-2006, Freescale Semiconductor, Inc. All Rights Reserved.
//  THIS SOURCE CODE, AND ITS USE AND DISTRIBUTION, IS SUBJECT TO THE TERMS
//  AND CONDITIONS OF THE APPLICABLE LICENSE AGREEMENT
//
//-----------------------------------------------------------------------------
//
//  Module: profiler.c
//
//  This module provides the BSP-specific interfaces required to support
//  the PQOAL profiler code.
//
//-----------------------------------------------------------------------------
#include <bsp.h>

//-----------------------------------------------------------------------------
// External Functions
extern VOID OALClockSetGatingMode(DDK_CLOCK_GATE_INDEX index, 
    DDK_CLOCK_GATE_MODE mode);


//-----------------------------------------------------------------------------
//
//  Function: OALProfileGetClkSrc
//
//  This function returns the clock source setting used to program the GPT
//  CLKSRC bits.
//
//  Parameters:
//      None.
//
//  Returns:
//      None.
//
//-----------------------------------------------------------------------------
UINT32 OALProfileGetClkSrc(void)
{
    return GPT_CR_CLKSRC_HIGHFREQ;
}


//-----------------------------------------------------------------------------
//
//  Function: OALProfileGetClkFreq
//
//  This function returns the frequency of the profiler input clock.
//
//  Parameters:
//      None.
//
//  Returns:
//      None.
//
//-----------------------------------------------------------------------------
UINT32 OALProfileGetClkFreq(void)
{
    BSP_ARGS *pBspArgs = (BSP_ARGS *)IMAGE_SHARE_ARGS_UA_START;

    return pBspArgs->clockFreq[DDK_CLOCK_SIGNAL_PER];
}


//-----------------------------------------------------------------------------
//
//  Function: OALProfileTimerEnable
//
//  This function performs platform-specific configuration to enable the
//  profile timer.
//
//  Parameters:
//      None.
//
//  Returns:
//      None.
//
//-----------------------------------------------------------------------------
VOID OALProfileTimerEnable(void)
{
    // Turn on GPT clocks
    OALClockSetGatingMode(DDK_CLOCK_GATE_INDEX_GPT, 
        DDK_CLOCK_GATE_MODE_ENABLED_ALL);

}


//-----------------------------------------------------------------------------
//
//  Function: OALProfileTimerDisable
//
//  This function performs platform-specific configuration to disable the
//  profile timer.
//
//  Parameters:
//      None.
//
//  Returns:
//      None.
//
//-----------------------------------------------------------------------------
VOID OALProfileTimerDisable(void)
{
    // Turn off GPT clocks
    OALClockSetGatingMode(DDK_CLOCK_GATE_INDEX_GPT, 
        DDK_CLOCK_GATE_MODE_DISABLED);
}