view src/nucleus/hii.c @ 291:a72feaed133a

PWT buzzer driver: conditionalize on TARGET_HAS_BUZZER Here we add a new target config preprocessor symbol TARGET_HAS_BUZZER, currently defined for c11x and c139; later we also expect to have it on for FC Venus, and in FC Magnetite we are going to turn it on for target dsample, just for the sake of completeness and philosophical correctness.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 26 Mar 2022 19:31:18 +0000
parents 4e78acac3d88
children
line wrap: on
line source

/*************************************************************************/
/*                                                                       */
/*               Copyright Mentor Graphics Corporation 2002              */
/*                         All Rights Reserved.                          */
/*                                                                       */
/* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS  */
/* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS   */
/* SUBJECT TO LICENSE TERMS.                                             */
/*                                                                       */
/*************************************************************************/

/*************************************************************************/
/*                                                                       */
/* FILE NAME                                               VERSION       */
/*                                                                       */
/*      hii.c                                          Nucleus PLUS 1.14 */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      HI - History Management                                          */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains the initialization routine for the History    */
/*      Management component.                                            */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      HII_Initialize                      History Management Initialize*/
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      hi_defs.h                           History component constants  */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      03-01-1994      Replaced void with VOID,                         */
/*                      resulting in version 1.1                         */
/*                                                                       */
/*      03-18-1994      Verified version 1.1                             */
/*      04-17-1996      updated to version 1.2                           */
/*      03-24-1998      Released version 1.3                             */
/*      03-26-1999      Released 1.11m (new release                      */
/*                        numbering scheme)                              */
/*      04-17-2002      Released version 1.13m                           */
/*      11-07-2002      Released version 1.14                            */
/*************************************************************************/
#define         NU_SOURCE_FILE


#include        "hi_defs.h"                 /* History constants         */
#include        "hi_extr.h"                 /* History interfaces        */


/* Define external inner-component global data references.  */

extern INT              HID_History_Enable;
extern INT              HID_Write_Index;
extern INT              HID_Read_Index;
extern INT              HID_Entry_Count;
extern TC_PROTECT       HID_History_Protect;


/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      HII_Initialize                                                   */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This function initializes the data structures that control the   */
/*      operation of the History component (HI).  This routine must be   */
/*      called from Supervisor mode in Supervisor/User mode switching    */
/*      kernels.                                                         */
/*                                                                       */
/* CALLED BY                                                             */
/*                                                                       */
/*      INC_Initialize                      System initialization        */
/*                                                                       */
/* CALLS                                                                 */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* INPUTS                                                                */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      HID_Current_Index                   Next available table index   */
/*      HID_Entry_Count                     Counter of entries in table  */
/*      HID_Table_Protect                   History table protection     */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      03-01-1994      Replaced void with VOID,                         */
/*                      resulting in version 1.1                         */
/*                                                                       */
/*      03-18-1994      Verified version 1.1                             */
/*                                                                       */
/*************************************************************************/
VOID  HII_Initialize(VOID)
{
    /* Initialize the history enable flag to false.  */
    HID_History_Enable =  NU_FALSE;

    /* Initialize the starting indices to the first entry.  */
    HID_Write_Index =  0;
    HID_Read_Index =  0;

    /* Initialize the entry counter to 0.  */
    HID_Entry_Count =  0;

    /* Initialize the history protection structure.  */
    HID_History_Protect.tc_tcb_pointer =      NU_NULL;
}