File content as of revision 186:707f6e361f3e:

/*******************************************************************************
 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the name of Maxim Integrated
 * Products, Inc. shall not be used except as stated in the Maxim Integrated
 * Products, Inc. Branding Policy.
 *
 * The mere transfer of this software does not imply any licenses
 * of trade secrets, proprietary technology, copyrights, patents,
 * trademarks, maskwork rights, or any other form of intellectual
 * property whatsoever. Maxim Integrated Products, Inc. retains all
 * ownership rights.
 *
 * $Date: 2016-05-31 15:46:18 -0500 (Tue, 31 May 2016) $
 * $Revision: 23105 $
 *
 ******************************************************************************/

#include <stddef.h>
#include "mxc_config.h"
#include "ioman.h"

/******************************************************************************/
int IOMAN_Config(const ioman_cfg_t *cfg)
{

    if(cfg == NULL) {
        return E_NULL_PTR;
    }

    if ((cfg->req_reg == &MXC_IOMAN->i2cm0_req) || (cfg->req_reg == &MXC_IOMAN->i2cm1_req)) {
        /* Request pin mapping */
        *cfg->req_reg = cfg->req_val.value;

        /* Check for acknowledgment */
        if (*cfg->ack_reg != cfg->req_val.value) {
            return E_BUSY;
        }
    }
    else {
        if (*cfg->ack_reg != cfg->req_val.value) {
            /* Request pin mapping */
            *cfg->req_reg = cfg->req_val.value;

            /* Check for acknowledgment */
            if (*cfg->ack_reg != cfg->req_val.value) {
                return E_BUSY;
            }
        }
    }

    return E_NO_ERROR;
}