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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012,2013 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT 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/>.
*/
/**
* @file hal_timcap.c
* @brief TIMCAP Driver code.
*
* @addtogroup TIMCAP
* @{
*/
#include "hal_timcap.h"
#if HAL_USE_TIMCAP || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief TIMCAP Driver initialization.
* @note This function is implicitly invoked by @p halInit(), there is
* no need to explicitly initialize the driver.
*
* @init
*/
void timcapInit(void) {
timcap_lld_init();
}
/**
* @brief Initializes the standard part of a @p TIMCAPDriver structure.
*
* @param[out] timcapp pointer to the @p TIMCAPDriver object
*
* @init
*/
void timcapObjectInit(TIMCAPDriver *timcapp) {
timcapp->state = TIMCAP_STOP;
timcapp->config = NULL;
}
/**
* @brief Configures and activates the TIMCAP peripheral.
*
* @param[in] timcapp pointer to the @p TIMCAPDriver object
* @param[in] config pointer to the @p TIMCAPConfig object
*
* @api
*/
void timcapStart(TIMCAPDriver *timcapp, const TIMCAPConfig *config) {
osalDbgCheck((timcapp != NULL) && (config != NULL));
osalSysLock();
osalDbgAssert((timcapp->state == TIMCAP_STOP) || (timcapp->state == TIMCAP_READY),
"invalid state");
timcapp->config = config;
timcap_lld_start(timcapp);
timcapp->state = TIMCAP_READY;
osalSysUnlock();
}
/**
* @brief Deactivates the TIMCAP peripheral.
*
* @param[in] timcapp pointer to the @p TIMCAPDriver object
*
* @api
*/
void timcapStop(TIMCAPDriver *timcapp) {
osalDbgCheck(timcapp != NULL);
osalSysLock();
osalDbgAssert((timcapp->state == TIMCAP_STOP) || (timcapp->state == TIMCAP_READY),
"invalid state");
timcap_lld_stop(timcapp);
timcapp->state = TIMCAP_STOP;
osalSysUnlock();
}
/**
* @brief Enables the input capture.
*
* @param[in] timcapp pointer to the @p TIMCAPDriver object
*
* @api
*/
void timcapEnable(TIMCAPDriver *timcapp) {
osalDbgCheck(timcapp != NULL);
osalSysLock();
osalDbgAssert(timcapp->state == TIMCAP_READY, "invalid state");
timcap_lld_enable(timcapp);
timcapp->state = TIMCAP_WAITING;
osalSysUnlock();
}
/**
* @brief Disables the input capture.
*
* @param[in] timcapp pointer to the @p TIMCAPDriver object
*
* @api
*/
void timcapDisable(TIMCAPDriver *timcapp) {
osalDbgCheck(timcapp != NULL);
osalSysLock();
osalDbgAssert((timcapp->state == TIMCAP_READY) || (timcapp->state == TIMCAP_WAITING) ||
(timcapp->state == TIMCAP_ACTIVE) || (timcapp->state == TIMCAP_IDLE),
"invalid state");
timcap_lld_disable(timcapp);
timcapp->state = TIMCAP_READY;
osalSysUnlock();
}
#endif /* HAL_USE_TIMCAP */
/** @} */
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