mirror of https://github.com/ARMmbed/mbed-os.git
137 lines
4.5 KiB
C
137 lines
4.5 KiB
C
/**
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* @file
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* @brief Timer utility functions.
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*/
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/* *****************************************************************************
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* Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of Maxim Integrated
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* Products, Inc. shall not be used except as stated in the Maxim Integrated
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* Products, Inc. Branding Policy.
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*
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* The mere transfer of this software does not imply any licenses
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* of trade secrets, proprietary technology, copyrights, patents,
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* trademarks, maskwork rights, or any other form of intellectual
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* property whatsoever. Maxim Integrated Products, Inc. retains all
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* ownership rights.
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*
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* $Date: 2016-10-10 19:49:16 -0500 (Mon, 10 Oct 2016) $
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* $Revision: 24675 $
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*
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**************************************************************************** */
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/* Define to prevent redundant inclusion */
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#ifndef _TMR_UTILS_H
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#define _TMR_UTILS_H
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/***** Includes *****/
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#include "mxc_config.h"
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#include "tmr_regs.h"
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#include "mxc_sys.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @ingroup tmr
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* @defgroup tmr_utils Timer Utility Functions
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* @{
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*/
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/* **** Definitions **** */
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/** Macro to convert the parameter \p s from seconds to micro-seconds. */
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#define SEC(s) (((unsigned long)s) * 1000000UL)
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/** Macro to convert the parameter \p ms from milli-seconds to micro-seconds. */
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#define MSEC(ms) (ms * 1000UL)
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/** Macro to convert the parameter \p us to micro-seconds. */
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#define USEC(us) (us)
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/* **** Globals **** */
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/* **** Function Prototypes **** */
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/**
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* @brief Delays for the specified number of microseconds.
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* @param tmr TMR module to operate on
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* @param us Number of microseconds to delay.
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*/
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void TMR_Delay(mxc_tmr_regs_t* tmr, unsigned long us);
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/**
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* @brief Start the timeout time for the specified number of microseconds.
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* @param tmr TMR module to operate on
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* @param us Number of microseconds in the timeout.
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*/
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void TMR_TO_Start(mxc_tmr_regs_t* tmr, unsigned long us);
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/**
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* @brief Check if the timeout has occured.
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* @param tmr TMR module to operate on
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* @return #E_NO_ERROR if the timeout has not occurred, #E_TIME_OUT if it has.
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*/
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int TMR_TO_Check(mxc_tmr_regs_t* tmr);
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/**
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* @brief Stops the timer for the timeout.
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* @param tmr TMR module to operate on
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*/
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void TMR_TO_Stop(mxc_tmr_regs_t* tmr);
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/**
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* @brief Clears the timeout flag.
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* @param tmr TMR module to operate on
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*/
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void TMR_TO_Clear(mxc_tmr_regs_t* tmr);
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/**
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* @brief Get the number of microseconds elapsed since TMR_TO_Start().
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* @param tmr TMR module to operate on
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* @return Number of microseconds since TMR_TO_Start().
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*/
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unsigned TMR_TO_Elapsed(mxc_tmr_regs_t* tmr);
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/**
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* @brief Get the number of microseconds remaining in the timeout.
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* @param tmr TMR module to operate on
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* @return Number of microseconds since TMR_TO_Start().
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*/
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unsigned TMR_TO_Remaining(mxc_tmr_regs_t* tmr);
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/**
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* @brief Start the stopwatch.
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* @param tmr TMR module to operate on
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*/
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void TMR_SW_Start(mxc_tmr_regs_t* tmr);
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/**
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* @brief Stop the stopwatch and return the number of microseconds that
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* have elapsed.
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* @param tmr TMR module to operate on
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* @return Number of microseconds since TMR_TO_Start().
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*/
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unsigned TMR_SW_Stop(mxc_tmr_regs_t* tmr);
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/**@} end of defgroup tmr_utils*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* _TMR_UTILS_H */
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