121 lines
4.2 KiB
C
121 lines
4.2 KiB
C
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/*
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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_spi_lld.h
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* @brief PLATFORM SPI subsystem low level driver header.
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*
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* @addtogroup SPI
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* @{
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*/
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#ifndef HAL_SPI_LLD_H
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#define HAL_SPI_LLD_H
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#if (HAL_USE_SPI == 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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* @brief Circular mode support flag.
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*/
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#define SPI_SUPPORTS_CIRCULAR TRUE
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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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* @name PLATFORM configuration options
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* @{
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*/
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/**
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* @brief SPI1 driver enable switch.
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* @details If set to @p TRUE the support for SPI1 is included.
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* @note The default is @p FALSE.
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*/
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#if !defined(PLATFORM_SPI_USE_SPI1) || defined(__DOXYGEN__)
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#define PLATFORM_SPI_USE_SPI1 FALSE
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#endif
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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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/* Driver macros. */
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/*===========================================================================*/
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/**
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* @brief Low level fields of the SPI driver structure.
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*/
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#define spi_lld_driver_fields \
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/* Dummy field, it is not needed.*/ \
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uint32_t dummy
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/**
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* @brief Low level fields of the SPI configuration structure.
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*/
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#define spi_lld_config_fields \
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/* Dummy configuration, it is not needed.*/ \
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uint32_t dummy
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#if (PLATFORM_SPI_USE_SPI1 == TRUE) && !defined(__DOXYGEN__)
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extern SPIDriver SPID1;
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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void spi_lld_init(void);
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void spi_lld_start(SPIDriver *spip);
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void spi_lld_stop(SPIDriver *spip);
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#if (SPI_SELECT_MODE == SPI_SELECT_MODE_LLD) || defined(__DOXYGEN__)
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void spi_lld_select(SPIDriver *spip);
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void spi_lld_unselect(SPIDriver *spip);
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#endif
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void spi_lld_select(SPIDriver *spip);
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void spi_lld_unselect(SPIDriver *spip);
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void spi_lld_ignore(SPIDriver *spip, size_t n);
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void spi_lld_exchange(SPIDriver *spip, size_t n,
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const void *txbuf, void *rxbuf);
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void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf);
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void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf);
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#if (SPI_SUPPORTS_CIRCULAR == TRUE) || defined(__DOXYGEN__)
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void spi_lld_abort(SPIDriver *spip);
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#endif
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uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_SPI == TRUE */
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#endif /* HAL_SPI_LLD_H */
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/** @} */
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