255 lines
6.9 KiB
C
255 lines
6.9 KiB
C
/**
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* @file spi.c
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* @brief This file contains the function implementations for the
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* Serial Peripheral Interface (SPIMSS) peripheral module.
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*/
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/* *****************************************************************************
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* Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of Maxim Integrated
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* Products, Inc. shall not be used except as stated in the Maxim Integrated
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* Products, Inc. Branding Policy.
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*
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* The mere transfer of this software does not imply any licenses
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* of trade secrets, proprietary technology, copyrights, patents,
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* trademarks, maskwork rights, or any other form of intellectual
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* property whatsoever. Maxim Integrated Products, Inc. retains all
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* ownership rights.
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*
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* $Date: 2018-10-17 14:16:30 -0500 (Wed, 17 Oct 2018) $
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* $Revision: 38560 $
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*
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**************************************************************************** */
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/* **** Includes **** */
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#include "spi.h"
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#include "mxc_sys.h"
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#include "spimss.h"
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#include "spi17y.h"
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/**
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* @ingroup spi
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* @{
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*/
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/***** Definitions *****/
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/***** Functions *****/
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/* ************************************************************************ */
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int SPI_Init(spi_type spi_name, unsigned mode, unsigned freq)
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{
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sys_cfg_spimss_t spimss_cfg;
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sys_cfg_spi17y_t spi17y_cfg;
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int error = E_NO_ERROR;
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if (spi_name == SPI0A) {
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spi17y_cfg.map = MAP_A;
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error = SPI17Y_Init(MXC_SPI17Y, mode, freq, &spi17y_cfg);
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} else if(spi_name == SPI1A) {
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spimss_cfg.map = MAP_A;
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error = SPIMSS_Init(MXC_SPIMSS, mode, freq, &spimss_cfg);
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} else if(spi_name == SPI1B) {
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spimss_cfg.map = MAP_B;
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error = SPIMSS_Init(MXC_SPIMSS, mode, freq, &spimss_cfg);
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} else {
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return E_BAD_PARAM;
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}
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return error;
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}
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/* ************************************************************************ */
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int SPI_MasterTransAsync(spi_type spi_name, spi_req_t *req)
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{
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int error = E_NO_ERROR;
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if (spi_name == SPI0A) {
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error = SPI17Y_MasterTransAsync(MXC_SPI17Y, (spi17y_req_t *) req);
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} else if((spi_name == SPI1A) || (spi_name == SPI1B)) {
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error = SPIMSS_MasterTransAsync(MXC_SPIMSS, (spimss_req_t *) req);
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} else {
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return E_BAD_PARAM;
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}
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return error;
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}
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/* ************************************************************************ */
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int SPI_MasterTrans(spi_type spi_name, spi_req_t *req)
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{
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int error = E_NO_ERROR;
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if (spi_name == SPI0A) {
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error = SPI17Y_MasterTrans(MXC_SPI17Y, (spi17y_req_t *) req);
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} else if((spi_name == SPI1A) || (spi_name == SPI1B)) {
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error = SPIMSS_MasterTrans(MXC_SPIMSS, (spimss_req_t *) req);
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} else {
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return E_BAD_PARAM;
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}
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return error;
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}
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/* ************************************************************************ */
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int SPI_SlaveTrans(spi_type spi_name, spi_req_t *req)
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{
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int error = E_NO_ERROR;
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if (spi_name == SPI0A) {
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error = SPI17Y_SlaveTrans(MXC_SPI17Y, (spi17y_req_t *) req);
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} else if ((spi_name == SPI1A) || (spi_name == SPI1B)) {
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error = SPIMSS_SlaveTrans(MXC_SPIMSS, (spimss_req_t *) req);
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} else {
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return E_BAD_PARAM;
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}
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return error;
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}
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/* ************************************************************************ */
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int SPI_SlaveTransAsync(spi_type spi_name, spi_req_t *req)
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{
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int error = E_NO_ERROR;
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if (spi_name == SPI0A) {
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error = SPI17Y_SlaveTransAsync(MXC_SPI17Y, (spi17y_req_t *) req);
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} else if ((spi_name == SPI1A) || (spi_name == SPI1B)) {
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error = SPIMSS_SlaveTransAsync(MXC_SPIMSS, (spimss_req_t *) req);
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} else {
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return E_BAD_PARAM;
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}
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return error;
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}
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/* ************************************************************************ */
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int SPI_Shutdown(spi_type spi_name)
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{
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int error = E_NO_ERROR;
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if (spi_name == SPI0A) {
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error = SPI17Y_Shutdown(MXC_SPI17Y);
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} else if ((spi_name == SPI1A) || (spi_name == SPI1B)) {
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error = SPIMSS_Shutdown(MXC_SPIMSS);
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} else {
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return E_BAD_PARAM;
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}
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return error;
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}
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/* ************************************************************************ */
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int SPI_AbortAsync(spi_type spi_name, spi_req_t *req)
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{
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int error = E_NO_ERROR;
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if (spi_name == SPI0A) {
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error = SPI17Y_AbortAsync((spi17y_req_t *) req);
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} else if ((spi_name == SPI1A) || (spi_name == SPI1B)) {
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error = SPIMSS_AbortAsync((spimss_req_t *) req);
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} else {
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return E_BAD_PARAM;
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}
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return error;
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}
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/* ************************************************************************ */
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int SPI_Handler(spi_type spi_name)
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{
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if (spi_name == SPI0A) {
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SPI17Y_Handler(MXC_SPI17Y);
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} else if ((spi_name == SPI1A) || (spi_name == SPI1B)) {
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SPIMSS_Handler(MXC_SPIMSS);
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} else {
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return E_BAD_PARAM;
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}
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return E_NO_ERROR;
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}
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// *****************************************************************************
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int SPI_Enable(spi_type spi_name)
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{
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if (spi_name == SPI0A) {
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SPI17Y_Enable(MXC_SPI17Y);
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} else if ((spi_name == SPI1A) || (spi_name == SPI1B)) {
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return E_NOT_SUPPORTED;
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} else {
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return E_BAD_PARAM;
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}
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return E_NO_ERROR;
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}
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// *****************************************************************************
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int SPI_Disable(spi_type spi_name)
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{
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if (spi_name == SPI0A) {
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SPI17Y_Disable(MXC_SPI17Y);
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} else if ((spi_name == SPI1A) || (spi_name == SPI1B)) {
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return E_NOT_SUPPORTED;
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} else {
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return E_BAD_PARAM;
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}
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return E_NO_ERROR;
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}
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// *****************************************************************************
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int SPI_Clear_fifo(spi_type spi_name)
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{
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if (spi_name == SPI0A) {
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SPI17Y_Clear_fifo(MXC_SPI17Y);
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} else if ((spi_name == SPI1A) || (spi_name == SPI1B)) {
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return E_NOT_SUPPORTED;
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} else {
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return E_BAD_PARAM;
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}
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return E_NO_ERROR;
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}
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/**@} end of group spi */
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