| /** |
| * \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 */ |