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Diffstat (limited to 'watch-library/hardware/hal/include/hal_spi_m_sync.h')
| -rwxr-xr-x | watch-library/hardware/hal/include/hal_spi_m_sync.h | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/watch-library/hardware/hal/include/hal_spi_m_sync.h b/watch-library/hardware/hal/include/hal_spi_m_sync.h new file mode 100755 index 00000000..5d040558 --- /dev/null +++ b/watch-library/hardware/hal/include/hal_spi_m_sync.h @@ -0,0 +1,221 @@ +/** + * \file + * + * \brief SPI related functionality declaration. + * + * Copyright (c) 2014-2018 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 _HAL_SPI_M_SYNC_H_INCLUDED +#define _HAL_SPI_M_SYNC_H_INCLUDED + +#include <hal_io.h> +#include <hpl_spi_m_sync.h> + +/** + * \addtogroup doc_driver_hal_spi_master_sync + * + * @{ + */ + +#ifdef __cplusplus +extern "C" { +#endif + +/** \brief SPI HAL driver struct for polling mode + * + */ +struct spi_m_sync_descriptor { + struct _spi_m_sync_hpl_interface *func; + /** SPI device instance */ + struct _spi_sync_dev dev; + /** I/O read/write */ + struct io_descriptor io; + /** Flags for HAL driver */ + uint16_t flags; +}; + +/** \brief Set the SPI HAL instance function pointer for HPL APIs. + * + * Set SPI HAL instance function pointer for HPL APIs. + * + * \param[in] spi Pointer to the HAL SPI instance. + * \param[in] func Pointer to the HPL api structure. + * + */ +void spi_m_sync_set_func_ptr(struct spi_m_sync_descriptor *spi, void *const func); + +/** \brief Initialize SPI HAL instance and hardware for polling mode + * + * Initialize SPI HAL with polling mode. + * + * \param[in] spi Pointer to the HAL SPI instance. + * \param[in] hw Pointer to the hardware base. + * + * \return Operation status. + * \retval ERR_NONE Success. + * \retval ERR_INVALID_DATA Error, initialized. + */ +int32_t spi_m_sync_init(struct spi_m_sync_descriptor *spi, void *const hw); + +/** \brief Deinitialize the SPI HAL instance and hardware + * + * Abort transfer, disable and reset SPI, deinit software. + * + * \param[in] spi Pointer to the HAL SPI instance. + * + * \return Operation status. + * \retval ERR_NONE Success. + * \retval <0 Error code. + */ +void spi_m_sync_deinit(struct spi_m_sync_descriptor *spi); + +/** \brief Enable SPI + * + * \param[in] spi Pointer to the HAL SPI instance. + * + * \return Operation status. + * \retval ERR_NONE Success. + * \retval <0 Error code. + */ +void spi_m_sync_enable(struct spi_m_sync_descriptor *spi); + +/** \brief Disable SPI + * + * \param[in] spi Pointer to the HAL SPI instance. + * + * \return Operation status. + * \retval ERR_NONE Success. + * \retval <0 Error code. + */ +void spi_m_sync_disable(struct spi_m_sync_descriptor *spi); + +/** \brief Set SPI baudrate + * + * Works if SPI is initialized as master, it sets the baudrate. + * + * \param[in] spi Pointer to the HAL SPI instance. + * \param[in] baud_val The target baudrate value + * (see "baudrate calculation" for calculating the value). + * + * \return Operation status. + * \retval ERR_NONE Success. + * \retval ERR_BUSY Busy + * \retval ERR_INVALID_ARG The baudrate is not supported. + */ +int32_t spi_m_sync_set_baudrate(struct spi_m_sync_descriptor *spi, const uint32_t baud_val); + +/** \brief Set SPI mode + * + * Set the SPI transfer mode (\ref spi_transfer_mode), + * which controls the 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] spi Pointer to the HAL SPI instance. + * \param[in] mode The mode (0~3). + * + * \return Operation status. + * \retval ERR_NONE Success. + * \retval ERR_BUSY Busy + * \retval ERR_INVALID_ARG The mode is not supported. + */ +int32_t spi_m_sync_set_mode(struct spi_m_sync_descriptor *spi, const enum spi_transfer_mode mode); + +/** \brief Set SPI transfer character size in number of bits + * + * The character size (\ref spi_char_size) influence the way the data is + * sent/received. + * For char size <= 8-bit, data is stored byte by byte. + * For char size between 9-bit ~ 16-bit, data is stored in 2-byte length. + * Note that the default and recommended char size is 8-bit since it's + * supported by all system. + * + * \param[in] spi Pointer to the HAL SPI instance. + * \param[in] char_size The char size (~16, recommended 8). + * + * \return Operation status. + * \retval ERR_NONE Success. + * \retval ERR_BUSY Busy + * \retval ERR_INVALID_ARG The char size is not supported. + */ +int32_t spi_m_sync_set_char_size(struct spi_m_sync_descriptor *spi, const enum spi_char_size char_size); + +/** \brief Set SPI transfer data order + * + * \param[in] spi Pointer to the HAL SPI instance. + * \param[in] dord The data order: send LSB/MSB first. + * + * \return Operation status. + * \retval ERR_NONE Success. + * \retval ERR_BUSY Busy + * \retval ERR_INVALID_ARG The data order is not supported. + */ +int32_t spi_m_sync_set_data_order(struct spi_m_sync_descriptor *spi, const enum spi_data_order dord); + +/** \brief Perform the SPI data transfer (TX and RX) in polling way + * + * Activate CS, do TX and RX and deactivate CS. It blocks. + * + * \param[in, out] spi Pointer to the HAL SPI instance. + * \param[in] xfer Pointer to the transfer information (\ref spi_xfer). + * + * \retval size Success. + * \retval >=0 Timeout, with number of characters transferred. + * \retval ERR_BUSY SPI is busy + */ +int32_t spi_m_sync_transfer(struct spi_m_sync_descriptor *spi, const struct spi_xfer *xfer); + +/** + * \brief Return the I/O descriptor for this SPI instance + * + * This function will return an I/O instance for this SPI driver instance. + * + * \param[in] spi An SPI master descriptor, which is used to communicate through + * SPI + * \param[in, out] io A pointer to an I/O descriptor pointer type + * + * \retval ERR_NONE + */ +int32_t spi_m_sync_get_io_descriptor(struct spi_m_sync_descriptor *const spi, struct io_descriptor **io); + +/** \brief Retrieve the current driver version + * + * \return Current driver version. + */ +uint32_t spi_m_sync_get_version(void); + +/**@}*/ + +#ifdef __cplusplus +} +#endif + +#endif /* ifndef _HAL_SPI_M_SYNC_H_INCLUDED */ |