ext/hal/ti/simplelink/source/ti/drivers/EMAC.c

/*
 * Copyright (c) 2014, Texas Instruments Incorporated
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * *  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * *  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * *  Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdint.h>
#include <stdlib.h>

#include <ti/drivers/EMAC.h>

/* Externs */
extern const EMAC_Config EMAC_config[];

/* Used to check status for initialization */
static int EMAC_count = -1;

/*
 *  ======== EMAC_init ========
 */
void EMAC_init(void)
{
    /*
     *  Allow only the first initialization to do anything.
     *  The next ones are nops.
     */
    if (EMAC_count >= 0) {
        return;
    }

    /* Call each driver's init function */
    for (EMAC_count = 0; EMAC_config[EMAC_count].fxnTablePtr != NULL;
         EMAC_count++) {
        EMAC_config[EMAC_count].fxnTablePtr->emacInit(EMAC_count);
    }

    return;
}

/*
 *  ======== EMAC_isLinkUp ========
 */
bool EMAC_isLinkUp(unsigned int index)
{
    return (EMAC_config[index].fxnTablePtr->emacIsLinkUp(index));
}