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C

4 years ago
/**
* \file
*
* \brief SPI related functionality declaration.
*
* Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
*
* \asf_license_start
*
* \page License
*
* Subject to your compliance with these terms, you may use Microchip
* software and any derivatives exclusively with Microchip products.
* It is your responsibility to comply with third party license terms applicable
* to your use of third party software (including open source software) that
* may accompany Microchip software.
*
* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
*
* \asf_license_stop
*
*/
#ifndef _HPL_SPI_M_SYNC_H_INCLUDED
#define _HPL_SPI_M_SYNC_H_INCLUDED
#include <hpl_spi.h>
#include <hpl_spi_sync.h>
/**
* \addtogroup hpl_spi HPL SPI
*
*@{
*/
#ifdef __cplusplus
extern "C" {
#endif
/** Uses common SPI sync device driver. */
#define _spi_m_sync_dev _spi_sync_dev
/**
* \name HPL functions
*/
//@{
/**
* \brief Initialize SPI for access without interrupts
* It will load default hardware configuration and software struct.
* \param[in, out] dev Pointer to the SPI device instance.
* \param[in] hw Pointer to the hardware base.
* \return Operation status.
* \retval ERR_INVALID_ARG Input parameter problem.
* \retval ERR_BUSY SPI hardware not ready (resetting).
* \retval ERR_DENIED SPI has been enabled.
* \retval 0 Operation done successfully.
*/
int32_t _spi_m_sync_init(struct _spi_m_sync_dev *dev, void *const hw);
/**
* \brief Deinitialize SPI
* Disable, reset the hardware and the software struct.
* \param[in, out] dev Pointer to the SPI device instance.
* \return Operation status.
* \retval 0 Operation done successfully.
*/
int32_t _spi_m_sync_deinit(struct _spi_m_sync_dev *dev);
/**
* \brief Enable SPI for access without interrupts
* \param[in, out] dev Pointer to the SPI device instance.
* \return Operation status.
* \retval ERR_BUSY SPI hardware not ready (resetting).
* \retval 0 Operation done successfully.
*/
int32_t _spi_m_sync_enable(struct _spi_m_sync_dev *dev);
/**
* \brief Disable SPI for access without interrupts
* Disable SPI. Deactivate all CS pins if works as master.
* \param[in, out] dev Pointer to the SPI device instance.
* \return Operation status.
* \retval 0 Operation done successfully.
*/
int32_t _spi_m_sync_disable(struct _spi_m_sync_dev *dev);
/**
* \brief Set SPI transfer mode
* Set SPI transfer mode (\ref spi_transfer_mode),
* which controls clock polarity and clock phase.
* Mode 0: leading edge is rising edge, data sample on leading edge.
* Mode 1: leading edge is rising edge, data sample on trailing edge.
* Mode 2: leading edge is falling edge, data sample on leading edge.
* Mode 3: leading edge is falling edge, data sample on trailing edge.
* \param[in, out] dev Pointer to the SPI device instance.
* \param[in] mode The SPI transfer mode.
* \return Operation status.
* \retval ERR_BUSY SPI is not ready to accept new setting.
* \retval 0 Operation done successfully.
*/
int32_t _spi_m_sync_set_mode(struct _spi_m_sync_dev *dev, const enum spi_transfer_mode mode);
/**
* \brief Set SPI baudrate
* \param[in, out] dev Pointer to the SPI device instance.
* \param[in] baud_val The SPI baudrate value, see \ref _spi_calc_baud_val() on
* how it's generated.
* \return Operation status.
* \retval ERR_BUSY SPI is not ready to accept new setting.
* \retval 0 Operation done successfully.
*/
int32_t _spi_m_sync_set_baudrate(struct _spi_m_sync_dev *dev, const uint32_t baud_val);
/**
* \brief Set SPI char size
* \param[in, out] dev Pointer to the SPI device instance.
* \param[in] char_size The character size, see \ref spi_char_size.
* \return Operation status.
* \retval ERR_INVALID_ARG The character size is not supported.
* \retval ERR_BUSY SPI is not ready to accept new setting.
* \retval 0 Operation done successfully.
*/
int32_t _spi_m_sync_set_char_size(struct _spi_m_sync_dev *dev, const enum spi_char_size char_size);
/**
* \brief Set SPI data order
* \param[in, out] dev Pointer to the SPI device instance.
* \param[in] dord SPI data order (LSB/MSB first).
* \return Operation status.
* \retval ERR_INVALID_ARG The character size is not supported.
* \retval ERR_BUSY SPI is not ready to accept new setting.
* \retval 0 Operation done successfully.
*/
int32_t _spi_m_sync_set_data_order(struct _spi_m_sync_dev *dev, const enum spi_data_order dord);
/**
* \brief Transfer the whole message without interrupt
* Transfer the message, it will keep waiting until the message finish or
* error.
* \param[in, out] dev Pointer to the SPI device instance.
* \param[in] msg Pointer to the message instance to process.
* \return Error or number of characters transferred.
* \retval ERR_BUSY SPI hardware is not ready to start transfer (not
* enabled, busy applying settings, ...).
* \retval SPI_ERR_OVERFLOW Overflow error.
* \retval >=0 Number of characters transferred.
*/
int32_t _spi_m_sync_trans(struct _spi_m_sync_dev *dev, const struct spi_msg *msg);
//@}
#ifdef __cplusplus
}
#endif
/**@}*/
#endif /* ifndef _HPL_SPI_M_SYNC_H_INCLUDED */