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/*
ChibiOS/HAL - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012,2013,2014 Giovanni Di Sirio.
This file is part of ChibiOS/HAL
ChibiOS/HAL is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
Concepts and parts of this file have been contributed by Uladzimir Pylinsky
aka barthess.
*/
/**
* @file emc.c
* @brief EMC Driver code.
*
* @addtogroup EMC
* @{
*/
#include "hal.h"
#if HAL_USE_EMC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local types. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief EMC Driver initialization.
* @note This function is implicitly invoked by @p halInit(), there is
* no need to explicitly initialize the driver.
*
* @init
*/
void emcInit(void) {
emc_lld_init();
}
/**
* @brief Initializes the standard part of a @p EMCDriver structure.
*
* @param[out] emcp pointer to the @p EMCDriver object
*
* @init
*/
void emcObjectInit(EMCDriver *emcp) {
emcp->state = EMC_STOP;
emcp->config = NULL;
}
/**
* @brief Configures and activates the EMC peripheral.
*
* @param[in] emcp pointer to the @p EMCDriver object
* @param[in] config pointer to the @p EMCConfig object
*
* @api
*/
void emcStart(EMCDriver *emcp, const EMCConfig *config) {
osalDbgCheck((emcp != NULL) && (config != NULL));
osalSysLock();
osalDbgAssert((emcp->state == EMC_STOP) || (emcp->state == EMC_READY),
"invalid state");
emcp->config = config;
emc_lld_start(emcp);
emcp->state = EMC_READY;
osalSysUnlock();
}
/**
* @brief Deactivates the EMC peripheral.
*
* @param[in] emcp pointer to the @p EMCDriver object
*
* @api
*/
void emcStop(EMCDriver *emcp) {
osalDbgCheck(emcp != NULL);
osalSysLock();
osalDbgAssert((emcp->state == EMC_STOP) || (emcp->state == EMC_READY),
"invalid state");
emc_lld_stop(emcp);
emcp->state = EMC_STOP;
osalSysUnlock();
}
#endif /* HAL_USE_EMC */
/** @} */
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