127 lines
3.5 KiB
C
127 lines
3.5 KiB
C
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/*
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ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file hal_sio.c
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* @brief SIO Driver code.
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*
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* @addtogroup SIO
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* @{
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*/
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#include "hal.h"
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#if (HAL_USE_SIO == TRUE) || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief SIO Driver initialization.
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* @note This function is implicitly invoked by @p halInit(), there is
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* no need to explicitly initialize the driver.
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*
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* @init
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*/
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void sioInit(void) {
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sio_lld_init();
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}
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/**
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* @brief Initializes the standard part of a @p SIODriver structure.
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*
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* @param[out] siop pointer to the @p SIODriver object
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*
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* @init
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*/
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void sioObjectInit(SIODriver *siop) {
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siop->state = SIO_STOP;
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siop->config = NULL;
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/* Optional, user-defined initializer.*/
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#if defined(SIO_DRIVER_EXT_INIT_HOOK)
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SIO_DRIVER_EXT_INIT_HOOK(siop);
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#endif
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}
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/**
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* @brief Configures and activates the SIO peripheral.
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*
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* @param[in] siop pointer to the @p SIODriver object
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* @param[in] config pointer to the @p SIOConfig object
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*
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* @api
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*/
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void sioStart(SIODriver *siop, const SIOConfig *config) {
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osalDbgCheck((siop != NULL) && (config != NULL));
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osalSysLock();
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osalDbgAssert((siop->state == SIO_STOP) || (siop->state == SIO_READY),
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"invalid state");
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siop->config = config;
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sio_lld_start(siop);
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siop->state = SIO_READY;
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osalSysUnlock();
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}
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/**
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* @brief Deactivates the SIO peripheral.
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*
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* @param[in] siop pointer to the @p SIODriver object
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*
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* @api
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*/
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void sioStop(SIODriver *siop) {
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osalDbgCheck(siop != NULL);
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osalSysLock();
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osalDbgAssert((siop->state == SIO_STOP) || (siop->state == SIO_READY),
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"invalid state");
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sio_lld_stop(siop);
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siop->config = NULL;
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siop->state = SIO_STOP;
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osalSysUnlock();
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}
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#endif /* HAL_USE_SIO == TRUE */
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/** @} */
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