csl_intchwcontrol.c

TI达芬奇dm644x各硬件模块测试代码

/*  ============================================================================
 *   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_intcHwControl.c
 *
 *  @brief  File for functional layer of CSL API @a CSL_intcHwControl()
 *
 *  Description
 *  - @a CSL_intcHwControl() function definition
 *
 *  Path: \\(CSLPATH)\\soc\\davinci\\arm9\\src\\intc
 *
 *  Modification
 *  - 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>

/** ============================================================================
 *   @n@b CSL_intcHwControl
 *
 *   @b Description
 *   @n Perform a control-operation. This API is used to invoke any of the
 *      supported control-operations supported by the module.
 *
 *   @b Arguments
 *   @verbatim
            hIntc           Handle identifying the event

            command         The command to this API indicates the action to be
                            taken on INTC.

            commandArg      An optional argument.
     @endverbatim
 *
 *   <b> Return Value </b>  CSL_Status
 *   @li                    CSL_SOK             - HwControl successful.
 *   @li                    CSL_ESYS_BADHANDLE  - Invalid handle
 *   @li                    CSL_ESYS_INVCMD     - Invalid command
 *   @li                    CSL_ESYS_INVPARAMS  - Invalid parameter
 *   @li                    CSL_ESYS_FAIL       - HwControl failed
 *
 *   <b> Pre Condition </b>
 *   @n  None
 *
 *   <b> Post Condition </b>
 *   @n  None
 *
 *   @b Modifies
 *   @n The hardware registers of INTC.
 *
 *   @b Example
 *   @verbatim
        CSL_IntcHandle         hIntc;
        CSL_IntcHwControlCmd   cmd;
        void                   arg;

        status = CSL_intcHwControl (hIntc, cmd, &arg);
     @endverbatim
 * =============================================================================
 */
#pragma CODE_SECTION (CSL_intcHwControl, ".text:csl_section:intc");
CSL_Status CSL_intcHwControl (
    CSL_IntcHandle              hIntc,
    CSL_IntcHwControlCmd        command,
    void                       *commandArg
)
{
    CSL_Status status = CSL_SOK;

    if ((hIntc->eventId >= _CSL_INTC_EVENTID__INTC0START) &&
        (hIntc->eventId <= _CSL_INTC_EVENTID__INTC0END)) {

        switch(command) {
            case CSL_INTC_CMD_EVTENABLE:
                if (hIntc->eventId == CSL_INTC_EVENTID_FIQ) {
                    _CSL_intc0EnableFIQ( );
                }
                else if (hIntc->eventId == CSL_INTC_EVENTID_IRQ) {
                    _CSL_intc0EnableIRQ( );
                }
                else {
                    status = CSL_ESYS_NOTSUPPORTED;
                }
                break;
            case CSL_INTC_CMD_EVTDISABLE:
                if (hIntc->eventId == CSL_INTC_EVENTID_FIQ) {
                    _CSL_intc0DisableFIQ( );
                }
                else if (hIntc->eventId == CSL_INTC_EVENTID_IRQ) {
                    _CSL_intc0DisableIRQ( );
                }
                else {
                    status = CSL_ESYS_NOTSUPPORTED;
                }
                break;
            /* all the other "Control" commands do not apply! */
            default:
                status = CSL_ESYS_NOTSUPPORTED;
                break;
        }

    }
    else if ((hIntc->eventId >= _CSL_INTC_EVENTID__INTC1START) &&
             (hIntc->eventId <= _CSL_INTC_EVENTID__INTC1END)) {

        register _CSL_Intc1EventId evtId = (_CSL_Intc1EventId)
                               (hIntc->eventId - _CSL_INTC_EVENTID__INTC1START);

        switch (command) {
            case CSL_INTC_CMD_SETPRIORITY:
                _CSL_intc1SetPriority(evtId, *(_CSL_Intc1Priority *)commandArg);
                break;
            case CSL_INTC_CMD_EVTENABLE:
                _CSL_intc1Enable(evtId);
                break;
            case CSL_INTC_CMD_EVTDISABLE:
                _CSL_intc1Disable(evtId);
                break;
            default:
                status = CSL_ESYS_INVCMD;
        }

    }
    else {
        status = CSL_ESYS_BADHANDLE;
    }

    return status;
}