mirror of https://github.com/ARMmbed/mbed-os.git
72 lines
2.8 KiB
C
72 lines
2.8 KiB
C
/*******************************************************************************
|
|
* 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: 2016-04-27 09:05:41 -0500 (Wed, 27 Apr 2016) $
|
|
* $Revision: 22529 $
|
|
*
|
|
******************************************************************************/
|
|
|
|
#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 */
|
|
/* Mask the I2CM SCL push/pull bit because it does not have an ack bit*/
|
|
if (*cfg->ack_reg != (cfg->req_val.value & ~(MXC_F_IOMAN_I2CM0_REQ_SCL_PUSH_PULL))) {
|
|
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;
|
|
}
|