diff options
Diffstat (limited to 'watch-library/hal/include/hpl_spi_m_dma.h')
| -rw-r--r-- | watch-library/hal/include/hpl_spi_m_dma.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/watch-library/hal/include/hpl_spi_m_dma.h b/watch-library/hal/include/hpl_spi_m_dma.h new file mode 100644 index 00000000..2b48300e --- /dev/null +++ b/watch-library/hal/include/hpl_spi_m_dma.h @@ -0,0 +1,182 @@ +/** + * \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 */ |