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