206 lines
6.8 KiB
C
206 lines
6.8 KiB
C
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/*
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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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/**
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* @file hal_timcap.h
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* @brief TIMCAP Driver macros and structures.
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*
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* @addtogroup TIMCAP
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* @{
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*/
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#ifndef HAL_TIMCAP_H_
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#define HAL_TIMCAP_H_
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#include "hal.h"
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#if (HAL_USE_TIMCAP == TRUE) || 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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TIMCAP_UNINIT = 0, /**< Not initialized. */
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TIMCAP_STOP = 1, /**< Stopped. */
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TIMCAP_READY = 2, /**< Ready. */
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TIMCAP_WAITING = 3, /**< Waiting first edge. */
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TIMCAP_ACTIVE = 4, /**< Active cycle phase. */
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TIMCAP_IDLE = 5, /**< Idle cycle phase. */
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} timcapstate_t;
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/**
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* @brief Type of a structure representing an TIMCAP driver.
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*/
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typedef struct TIMCAPDriver TIMCAPDriver;
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/**
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* @brief TIMCAP notification callback type.
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*
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* @param[in] timcapp pointer to a @p TIMCAPDriver object
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*/
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typedef void (*timcapcallback_t)(TIMCAPDriver *timcapp);
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#include "hal_timcap_lld.h"
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/**
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* @name Macro Functions
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* @{
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*/
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/**
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* @brief Enables the input capture.
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*
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* @param[in] timcapp pointer to the @p TIMCAPDriver object
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*
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* @iclass
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*/
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#define timcapEnableI(timcapp) timcap_lld_enable(timcapp)
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/**
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* @brief Disables the input capture.
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*
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* @param[in] timcapp pointer to the @p TIMCAPDriver object
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*
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* @iclass
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*/
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#define timcapDisableI(timcapp) timcap_lld_disable(timcapp)
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/** @} */
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/**
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* @name Low Level driver helper macros
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* @{
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*/
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/**
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* @brief Common ISR code, TIMCAP channel 1 event.
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*
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* @param[in] timcapp pointer to the @p TIMCAPDriver object
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*
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* @notapi
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*/
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#define _timcap_isr_invoke_channel1_cb(timcapp) { \
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timcapstate_t previous_state = (timcapp)->state; \
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(timcapp)->state = TIMCAP_ACTIVE; \
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if (previous_state != TIMCAP_WAITING) \
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(timcapp)->config->capture_cb_array[0](timcapp); \
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}
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/**
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* @brief Common ISR code, TIMCAP channel 2 event.
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*
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* @param[in] timcapp pointer to the @p TIMCAPDriver object
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*
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* @notapi
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*/
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#define _timcap_isr_invoke_channel2_cb(timcapp) { \
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timcapstate_t previous_state = (timcapp)->state; \
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(timcapp)->state = TIMCAP_ACTIVE; \
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if (previous_state != TIMCAP_WAITING) \
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(timcapp)->config->capture_cb_array[1](timcapp); \
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}
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/**
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* @brief Common ISR code, TIMCAP channel 3 event.
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*
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* @param[in] timcapp pointer to the @p TIMCAPDriver object
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*
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* @notapi
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*/
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#define _timcap_isr_invoke_channel3_cb(timcapp) { \
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timcapstate_t previous_state = (timcapp)->state; \
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(timcapp)->state = TIMCAP_ACTIVE; \
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if (previous_state != TIMCAP_WAITING) \
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(timcapp)->config->capture_cb_array[2](timcapp); \
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}
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/**
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* @brief Common ISR code, TIMCAP channel 4 event.
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*
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* @param[in] timcapp pointer to the @p TIMCAPDriver object
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*
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* @notapi
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*/
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#define _timcap_isr_invoke_channel4_cb(timcapp) { \
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timcapstate_t previous_state = (timcapp)->state; \
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(timcapp)->state = TIMCAP_ACTIVE; \
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if (previous_state != TIMCAP_WAITING) \
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(timcapp)->config->capture_cb_array[3](timcapp); \
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}
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/**
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* @brief Common ISR code, TIMCAP timer overflow event.
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*
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* @param[in] timcapp pointer to the @p TIMCAPDriver object
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*
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* @notapi
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*/
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#define _timcap_isr_invoke_overflow_cb(timcapp) { \
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(timcapp)->config->overflow_cb(timcapp); \
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}
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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 timcapInit(void);
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void timcapObjectInit(TIMCAPDriver *timcapp);
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void timcapStart(TIMCAPDriver *timcapp, const TIMCAPConfig *config);
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void timcapStop(TIMCAPDriver *timcapp);
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void timcapEnable(TIMCAPDriver *timcapp);
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void timcapDisable(TIMCAPDriver *timcapp);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_TIMCAP */
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#endif /* HAL_TIMCAP_H_ */
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/** @} */
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