csl_intcinit.c

TI的DM6446的硬件平台搭建的相关例子

/*  ============================================================================
 *   Copyright (c) Texas Instruments Inc 2002, 2003, 2004, 2005
 *
 *   Use of this software is controlled by the terms and conditions found in the
 *   license agreement under which this software has been supplied.
 *   ===========================================================================
 */

/** @file  csl_intcInit.c
 *
 *  @brief  File for functional layer of CSL API @a CSL_intcInit()
 *
 *  Description
 *  - @a CSL_intcInit() function definition
 *
 *  Path: \\(CSLPATH)\\soc\\davinci\\arm9\\src\\intc
 *
 *  Modification
 *  - Modified on: 2004/06/04 (Francis S)
 *  - Reason: Add Interrupt Entry Table Initialization
 *          : Added Interrupt Priority Mask support
 *
 *  - Modified on: 2004/04/15
 *  - Reason: creation
 *
 *  Date   2004/04/15
 *  Author RG Kiran
 */

#include <csl_intc.h>

#include <csl_error.h>
#include <csl_types.h>

#include <_csl_intc0.h>
#include <_csl_intc1.h>

#include <csl_sysData.h>
#include <_csl_intc.h>

/** ============================================================================
 *   @n@b CSL_intcInit
 *
 *   @b Description
 *   @n This is the initialization function for the INTC. This function is
 *      idempotent in that calling it many times is same as calling it once.
 *      This function initializes the CSL data structures, and doesn't affect
 *      the H/W.
 *
 *   @b Arguments
 *   @n None
 *
 *   <b> Return Value </b>  CSL_Status
 *   @li                    CSL_SOK - Always returns
 *
 *   <b> Pre Condition </b>
 *   @n  None
 *
 *   <b> Post Condition </b>
 *   @n  None
 *
 *   @b Modifies
 *   @n  None
 *
 *   @b Example
 *   @verbatim
         ...
         if (CSL_sysInit() == CSL_SOK) {
            CSL_intcInit();
         }
     @endverbatim
 * =============================================================================
 */
#pragma CODE_SECTION (CSL_intcInit, ".text:csl_section:intc");
CSL_Status CSL_intcInit (
    void
)
{
    register int i;

    CSL_sysDataHandle->intcAllocMask = _CSL_intcAllocMask;
    for(i = 0; i < ((CSL_INTC_EVENTID_CNT  + 31) / 32); ++i) {
        CSL_sysDataHandle->intcAllocMask[i] = 0;
    }

    _CSL_intc0Init( );
    _CSL_intc1Init( );

    return CSL_SOK;
}