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131 lines
4.9 KiB
C
Executable File
131 lines
4.9 KiB
C
Executable File
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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---
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes ChibiOS/RT, without being obliged to provide
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the source code for any proprietary components. See the file exception.txt
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for full details of how and when the exception can be applied.
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*/
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/**
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* @file gpt.h
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* @brief GPT Driver macros and structures.
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*
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* @addtogroup GPT
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* @{
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*/
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#ifndef _GPT_H_
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#define _GPT_H_
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#if HAL_USE_GPT || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/**
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* @brief Driver state machine possible states.
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*/
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typedef enum {
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GPT_UNINIT = 0, /**< Not initialized. */
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GPT_STOP = 1, /**< Stopped. */
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GPT_READY = 2, /**< Ready. */
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GPT_CONTINUOUS = 3, /**< Active in continuous mode. */
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GPT_ONESHOT = 4 /**< Active in one shot mode. */
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} gptstate_t;
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/**
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* @brief Type of a structure representing a GPT driver.
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*/
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typedef struct GPTDriver GPTDriver;
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/**
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* @brief GPT notification callback type.
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*
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* @param[in] gptp pointer to a @p GPTDriver object
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*/
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typedef void (*gptcallback_t)(GPTDriver *gptp);
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#include "gpt_lld.h"
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/**
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* @brief Changes the interval of GPT peripheral.
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* @details This function changes the interval of a running GPT unit.
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* @pre The GPT unit must have been activated using @p gptStart().
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* @pre The GPT unit must have been running in continuous mode using
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* @p gptStartContinuous().
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* @post The GPT unit interval is changed to the new value.
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*
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* @param[in] gptp pointer to a @p GPTDriver object
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* @param[in] interval new cycle time in timer ticks
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*
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* @iclass
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*/
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#define gptChangeIntervalI(gptp, interval) { \
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gpt_lld_change_interval(gptp, interval); \
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}
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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void gptInit(void);
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void gptObjectInit(GPTDriver *gptp);
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void gptStart(GPTDriver *gptp, const GPTConfig *config);
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void gptStop(GPTDriver *gptp);
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void gptStartContinuous(GPTDriver *gptp, gptcnt_t interval);
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void gptStartContinuousI(GPTDriver *gptp, gptcnt_t interval);
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void gptChangeInterval(GPTDriver *gptp, gptcnt_t interval);
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void gptStartOneShot(GPTDriver *gptp, gptcnt_t interval);
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void gptStartOneShotI(GPTDriver *gptp, gptcnt_t interval);
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void gptStopTimer(GPTDriver *gptp);
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void gptStopTimerI(GPTDriver *gptp);
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void gptPolledDelay(GPTDriver *gptp, gptcnt_t interval);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_GPT */
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#endif /* _GPT_H_ */
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/** @} */
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