188 lines
5.0 KiB
C
188 lines
5.0 KiB
C
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/*
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ChibiOS/HAL - Copyright (C) 2006-2014 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/*
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Concepts and parts of this file have been contributed by Fabio Utzig and
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Xo Wang.
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*/
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/**
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* @file PLATFORM/icu_lld.c
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* @brief PLATFORM ICU subsystem low level driver header.
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*
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* @addtogroup ICU
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* @{
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*/
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#include "hal.h"
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#if HAL_USE_ICU || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/**
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* @brief ICUD1 driver identifier.
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* @note The driver ICUD1 allocates the complex timer TIM1 when enabled.
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*/
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#if PLATFORM_ICU_USE_ICU1 || defined(__DOXYGEN__)
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ICUDriver ICUD1;
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#endif
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/*===========================================================================*/
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/* Driver local variables and types. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief Low level ICU driver initialization.
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*
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* @notapi
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*/
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void icu_lld_init(void) {
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#if PLATFORM_ICU_USE_ICU1
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/* Driver initialization.*/
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icuObjectInit(&ICUD1);
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#endif
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}
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/**
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* @brief Configures and activates the ICU peripheral.
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*
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* @param[in] icup pointer to the @p ICUDriver object
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*
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* @notapi
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*/
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void icu_lld_start(ICUDriver *icup) {
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if (icup->state == ICU_STOP) {
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/* Clock activation and timer reset.*/
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#if PLATFORM_ICU_USE_ICU1
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if (&ICUD1 == icup) {
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}
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#endif
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}
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/**
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* @brief Deactivates the ICU peripheral.
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*
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* @param[in] icup pointer to the @p ICUDriver object
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*
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* @notapi
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*/
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void icu_lld_stop(ICUDriver *icup) {
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if (icup->state == ICU_READY) {
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/* Clock deactivation.*/
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#if PLATFORM_ICU_USE_ICU1
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if (&ICUD1 == icup) {
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}
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#endif
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}
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/**
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* @brief Starts the input capture.
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*
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* @param[in] icup pointer to the @p ICUDriver object
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*
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* @notapi
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*/
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void icu_lld_start_capture(ICUDriver *icup) {
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(void)icup;
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}
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/**
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* @brief Waits for a completed capture.
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* @note The operation is performed in polled mode.
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* @note In order to use this function notifications must be disabled.
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*
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* @param[in] icup pointer to the @p ICUDriver object
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* @return The capture status.
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* @retval false if the capture is successful.
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* @retval true if a timer overflow occurred.
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*
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* @notapi
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*/
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bool icu_lld_wait_capture(ICUDriver *icup) {
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(void)icup;
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return false;
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}
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/**
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* @brief Stops the input capture.
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*
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* @param[in] icup pointer to the @p ICUDriver object
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*
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* @notapi
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*/
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void icu_lld_stop_capture(ICUDriver *icup) {
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(void)icup;
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}
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/**
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* @brief Enables notifications.
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* @pre The ICU unit must have been activated using @p icuStart().
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* @note If the notification is already enabled then the call has no effect.
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*
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* @param[in] icup pointer to the @p ICUDriver object
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*
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* @api
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*/
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void icu_lld_enable_notifications(ICUDriver *icup) {
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(void)icup;
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}
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/**
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* @brief Disables notifications.
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* @pre The ICU unit must have been activated using @p icuStart().
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* @note If the notification is already disabled then the call has no effect.
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*
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* @param[in] icup pointer to the @p ICUDriver object
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*
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* @api
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*/
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void icu_lld_disable_notifications(ICUDriver *icup) {
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(void)icup;
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}
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#endif /* HAL_USE_ICU */
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/** @} */
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