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/*
ChibiOS - Copyright (C) 2006..2017 Giovanni Di Sirio
Copyright (C) 2017 Fabien Poussin (fabien.poussin (at) google's mail)
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_comp.c
* @brief COMP Driver code.
*
* @addtogroup COMP
* @{
*/
#include "hal_comp.h"
#if HAL_USE_COMP || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief COMP Driver initialization.
* @note This function is implicitly invoked by @p halInit(), there is
* no need to explicitly initialize the driver.
*
* @init
*/
void compInit(void) {
comp_lld_init();
}
/**
* @brief Initializes the standard part of a @p COMPDriver structure.
*
* @param[out] compp pointer to the @p COMPDriver object
*
* @init
*/
void compObjectInit(COMPDriver *compp) {
compp->state = COMP_STOP;
compp->config = NULL;
}
/**
* @brief Configures and activates the COMP peripheral.
*
* @param[in] compp pointer to the @p COMPDriver object
* @param[in] config pointer to the @p COMPConfig object
*
* @api
*/
void compStart(COMPDriver *compp, const COMPConfig *config) {
osalDbgCheck((compp != NULL) && (config != NULL));
osalSysLock();
osalDbgAssert((compp->state == COMP_STOP) || (compp->state == COMP_READY),
"invalid state");
compp->config = config;
comp_lld_start(compp);
compp->state = COMP_READY;
osalSysUnlock();
}
/**
* @brief Deactivates the COMP peripheral.
*
* @param[in] compp pointer to the @p COMPDriver object
*
* @api
*/
void compStop(COMPDriver *compp) {
osalDbgCheck(compp != NULL);
osalSysLock();
osalDbgAssert((compp->state == COMP_STOP) || (compp->state == COMP_READY),
"invalid state");
comp_lld_stop(compp);
compp->state = COMP_STOP;
osalSysUnlock();
}
/**
* @brief Activates the comparator.
*
* @param[in] compp pointer to the @p COMPDriver object
*
* @api
*/
void compEnable(COMPDriver *compp) {
osalDbgCheck(compp != NULL);
osalSysLock();
osalDbgAssert(compp->state == COMP_READY, "invalid state");
comp_lld_enable(compp);
compp->state = COMP_ACTIVE;
osalSysUnlock();
}
/**
* @brief Deactivates the comparator.
*
* @param[in] compp pointer to the @p COMPDriver object
*
* @api
*/
void compDisable(COMPDriver *compp) {
osalDbgCheck(compp != NULL);
osalSysLock();
osalDbgAssert((compp->state == COMP_READY) || (compp->state == COMP_ACTIVE),
"invalid state");
comp_lld_disable(compp);
compp->state = COMP_READY;
osalSysUnlock();
}
#endif /* HAL_USE_COMP */
/** @} */
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