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/**
* \file
*
* \brief SPI Master DMA related functionality declaration.
*
* Copyright (c) 2016-2018 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_DMA_H_INCLUDED
#define _HPL_SPI_M_DMA_H_INCLUDED
#include <hpl_spi.h>
#include <hpl_spi_dma.h>
/**
* \addtogroup hpl_spi HPL SPI
*
*
*@{
*/
#ifdef __cplusplus
extern "C" {
#endif
/** Uses common SPI dma device driver. */
#define _spi_m_dma_dev _spi_dma_dev
#define _spi_m_dma_dev_cb_type _spi_dma_dev_cb_type
/**
* \name HPL functions
*/
//@{
/**
* \brief Initialize SPI for access with 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 ERR_NONE is operation done successfully.
*/
int32_t _spi_m_dma_init(struct _spi_m_dma_dev *dev, void *const hw);
/**
* \brief Initialize SPI for access with interrupts
* Disable, reset the hardware and the software struct.
* \param[in, out] dev Pointer to the SPI device instance.
* \return Operation status.
* \retval 0 ERR_NONE is operation done successfully.
*/
int32_t _spi_m_dma_deinit(struct _spi_m_dma_dev *dev);
/**
* \brief Enable SPI for access with interrupts
* Enable the SPI and enable callback generation of receive and error
* interrupts.
* \param[in] dev Pointer to the SPI device instance.
* \return Operation status.
* \retval ERR_INVALID_ARG Input parameter problem.
* \retval ERR_BUSY SPI hardware not ready (resetting).
* \retval 0 ERR_NONE is operation done successfully.
*/
int32_t _spi_m_dma_enable(struct _spi_m_dma_dev *dev);
/**
* \brief Disable SPI for access without interrupts
* Disable SPI and interrupts. Deactivate all CS pins if works as master.
* \param[in] dev Pointer to the SPI device instance.
* \return Operation status.
* \retval 0 ERR_NONE is operation done successfully.
*/
int32_t _spi_m_dma_disable(struct _spi_m_dma_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] 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 ERR_NONE is operation done successfully.
*/
int32_t _spi_m_dma_set_mode(struct _spi_m_dma_dev *dev, const enum spi_transfer_mode mode);
/**
* \brief Set SPI baudrate
* \param[in] 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_dma_set_baudrate(struct _spi_m_dma_dev *dev, const uint32_t baud_val);
/**
* \brief Set SPI baudrate
* \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_dma_set_char_size(struct _spi_m_dma_dev *dev, const enum spi_char_size char_size);
/**
* \brief Set SPI data order
* \param[in] 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_dma_set_data_order(struct _spi_m_dma_dev *dev, const enum spi_data_order dord);
/**
* \brief Register the SPI device callback
* \param[in] dev Pointer to the SPI device instance.
* \param[in] cb_type The callback type.
* \param[in] func The callback function to register. NULL to disable callback.
* \return Always 0.
*/
void _spi_m_dma_register_callback(struct _spi_m_dma_dev *dev, enum _spi_dma_dev_cb_type, _spi_dma_cb_t func);
/** \brief Do SPI data transfer (TX & RX) with DMA
* Log the TX & RX buffers and transfer them in background. It never blocks.
*
* \param[in] dev Pointer to the SPI device instance.
* \param[in] txbuf Pointer to the transfer information (\ref spi_transfer).
* \param[out] rxbuf Pointer to the receiver information (\ref spi_receive).
* \param[in] length spi transfer data length.
*
* \return Operation status.
* \retval ERR_NONE Success.
* \retval ERR_BUSY Busy.
*/
int32_t _spi_m_dma_transfer(struct _spi_m_dma_dev *dev, uint8_t const *txbuf, uint8_t *const rxbuf,
const uint16_t length);
//@}
#ifdef __cplusplus
}
#endif
/**@}*/
#endif /* ifndef _HPL_SPI_M_DMA_H_INCLUDED */
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