255 lines
6.8 KiB
C
255 lines
6.8 KiB
C
/*
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ChibiOS - Copyright (C) 2006..2018 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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* @file hal_sio_lld.c
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* @brief PLATFORM SIO subsystem low level driver source.
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*
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* @addtogroup SIO
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* @{
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*/
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#include "hal.h"
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#if (HAL_USE_SIO == TRUE) || 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 SIO1 driver identifier.
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*/
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#if (PLATFORM_SIO_USE_SIO1 == TRUE) || defined(__DOXYGEN__)
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SIODriver SIOD1;
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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 SIO driver initialization.
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*
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* @notapi
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*/
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void sio_lld_init(void) {
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#if PLATFORM_SIO_USE_SIO1 == TRUE
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/* Driver initialization.*/
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sioObjectInit(&SIOD1);
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#endif
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}
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/**
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* @brief Configures and activates the SIO peripheral.
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*
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* @param[in] siop pointer to the @p SIODriver object
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* @return The operation status.
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* @retval false if the driver has been correctly started.
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* @retval true if an error occurred.
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*
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* @notapi
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*/
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bool sio_lld_start(SIODriver *siop) {
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if (siop->state == SIO_STOP) {
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/* Enables the peripheral.*/
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#if PLATFORM_SIO_USE_SIO1 == TRUE
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if (&SIOD1 == siop) {
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}
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#endif
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}
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/* Configures the peripheral.*/
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return false;
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}
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/**
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* @brief Deactivates the SIO peripheral.
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*
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* @param[in] siop pointer to the @p SIODriver object
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*
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* @notapi
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*/
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void sio_lld_stop(SIODriver *siop) {
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if (siop->state == SIO_READY) {
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/* Resets the peripheral.*/
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/* Disables the peripheral.*/
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#if PLATFORM_SIO_USE_SIO1 == TRUE
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if (&SIOD1 == siop) {
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}
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#endif
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}
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}
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/**
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* @brief Starts a SIO operation.
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*
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* @param[in] siop pointer to an @p SIODriver structure
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*
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* @api
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*/
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void sio_lld_start_operation(SIODriver *siop) {
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(void)siop;
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}
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/**
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* @brief Stops an ongoing SIO operation, if any.
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*
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* @param[in] siop pointer to an @p SIODriver structure
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*
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* @api
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*/
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void sio_lld_stop_operation(SIODriver *siop) {
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(void)siop;
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}
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/**
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* @brief Return the pending SIO events flags.
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*
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* @param[in] siop pointer to the @p SIODriver object
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* @return The pending event flags.
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*
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* @notapi
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*/
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sio_events_mask_t sio_lld_get_and_clear_events(SIODriver *siop) {
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sio_events_mask_t evtmask = 0U;
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(void)siop;
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return evtmask;
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}
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/**
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* @brief Reads data from the RX FIFO.
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* @details The function is not blocking, it writes frames until there
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* is space available without waiting.
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*
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* @param[in] siop pointer to an @p SIODriver structure
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* @param[in] buffer pointer to the buffer for read frames
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* @param[in] n maximum number of frames to be read
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* @return The number of frames copied from the buffer.
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* @retval 0 if the TX FIFO is full.
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*/
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size_t sio_lld_read(SIODriver *siop, uint8_t *buffer, size_t n) {
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(void)siop;
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(void)buffer;
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return n;
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}
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/**
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* @brief Writes data into the TX FIFO.
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* @details The function is not blocking, it writes frames until there
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* is space available without waiting.
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*
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* @param[in] siop pointer to an @p SIODriver structure
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* @param[in] buffer pointer to the buffer for read frames
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* @param[in] n maximum number of frames to be written
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* @return The number of frames copied from the buffer.
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* @retval 0 if the TX FIFO is full.
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*/
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size_t sio_lld_write(SIODriver *siop, const uint8_t *buffer, size_t n) {
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(void)siop;
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(void)buffer;
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return n;
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}
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/**
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* @brief Returns one frame from the RX FIFO.
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* @note If the FIFO is empty then the returned value is unpredictable.
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*
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* @param[in] siop pointer to the @p SIODriver object
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* @return The frame from RX FIFO.
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*
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* @notapi
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*/
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msg_t sio_lld_get(SIODriver *siop) {
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msg_t msg = 0U;
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(void)siop;
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return msg;
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}
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/**
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* @brief Pushes one frame into the TX FIFO.
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* @note If the FIFO is full then the behavior is unpredictable.
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*
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* @param[in] siop pointer to the @p SIODriver object
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* @param[in] data frame to be written
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*
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* @notapi
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*/
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void sio_lld_put(SIODriver *siop, uint_fast16_t data) {
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(void)siop;
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(void)data;
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}
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/**
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* @brief Control operation on a serial port.
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*
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* @param[in] siop pointer to the @p SIODriver object
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* @param[in] operation control operation code
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* @param[in,out] arg operation argument
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*
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* @return The control operation status.
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* @retval MSG_OK in case of success.
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* @retval MSG_TIMEOUT in case of operation timeout.
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* @retval MSG_RESET in case of operation reset.
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*
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* @notapi
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*/
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msg_t sio_lld_control(SIODriver *siop, unsigned int operation, void *arg) {
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(void)siop;
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(void)operation;
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(void)arg;
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return MSG_OK;
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}
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#endif /* HAL_USE_SIO == TRUE */
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/** @} */
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