stm32_spi.c File Reference

Implementation of stm32 spi driver. More...

#include <stdlib.h>
#include <errno.h>
#include "no-os/util.h"
#include "no-os/gpio.h"
#include "stm32_gpio.h"
#include "no-os/spi.h"
#include "stm32_spi.h"

Include dependency graph for stm32_spi.c:

Functions
int32_t	stm32_spi_init (struct spi_desc **desc, const struct spi_init_param *param)
	Initialize the SPI communication peripheral. More...
int32_t	stm32_spi_remove (struct spi_desc *desc)
	Free the resources allocated by spi_init(). More...
int32_t	stm32_spi_write_and_read (struct spi_desc *desc, uint8_t *data, uint16_t bytes_number)
	Write and read data to/from SPI. More...

Variables
const struct spi_platform_ops	stm32_spi_ops
	stm32 platform specific SPI platform ops structure More...

Detailed Description

Implementation of stm32 spi driver.

Author

Darius Berghe (dariu.nosp@m.s.be.nosp@m.rghe@.nosp@m.anal.nosp@m.og.co.nosp@m.m)

Copyright 2020(c) Analog Devices, Inc.

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
• Neither the name of Analog Devices, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
• The use of this software may or may not infringe the patent rights of one or more patent holders. This license does not release you from the requirement that you obtain separate licenses from these patent holders to use this software.
• Use of the software either in source or binary form, must be run on or directly connected to an Analog Devices Inc. component.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Function Documentation

stm32_spi_init()

int32_t stm32_spi_init	(	struct spi_desc **	desc,
		const struct spi_init_param *	param
	)

Initialize the SPI communication peripheral.

Parameters

desc	- The SPI descriptor.
param	- The structure that contains the SPI parameters.

Returns

SUCCESS in case of success, FAILURE otherwise.

stm32_spi_remove()

int32_t stm32_spi_remove

(

struct spi_desc *

desc

)

Free the resources allocated by spi_init().

Parameters

desc	- The SPI descriptor.

Returns

SUCCESS in case of success, FAILURE otherwise.

stm32_spi_write_and_read()

int32_t stm32_spi_write_and_read	(	struct spi_desc *	desc,
		uint8_t *	data,
		uint16_t	bytes_number
	)

Write and read data to/from SPI.

Parameters

desc	- The SPI descriptor.
data	- The buffer with the transmitted/received data.
bytes_number	- Number of bytes to write/read.

Returns

SUCCESS in case of success, FAILURE otherwise.

Variable Documentation

stm32_spi_ops

const struct spi_platform_ops stm32_spi_ops

Initial value:

= {
    .init = &stm32_spi_init,
    .write_and_read = &stm32_spi_write_and_read,
    .remove = &stm32_spi_remove
}

stm32 platform specific SPI platform ops structure

stm32 specific SPI platform ops structure