altera_spi.c File Reference

Implementation of Altera SPI Generic Driver. More...

#include <stdlib.h>
#include <altera_avalon_spi_regs.h>
#include "parameters.h"
#include "no_os_error.h"
#include "no_os_alloc.h"
#include "no_os_spi.h"
#include "altera_spi.h"

Include dependency graph for altera_spi.c:

Functions
int32_t	altera_spi_init (struct no_os_spi_desc **desc, const struct no_os_spi_init_param *param)
	Initialize the SPI communication peripheral. More...
int32_t	altera_spi_remove (struct no_os_spi_desc *desc)
	Free the resources allocated by no_os_spi_init(). More...
int32_t	altera_spi_write_and_read (struct no_os_spi_desc *desc, uint8_t *data, uint16_t bytes_number)
	Write and read data to/from SPI. More...

Variables
const struct no_os_spi_platform_ops	altera_spi_ops
	Altera platform specific SPI platform ops structure. More...

Detailed Description

Implementation of Altera SPI Generic Driver.

Author

Antoniu Miclaus (anton.nosp@m.iu.m.nosp@m.iclau.nosp@m.s@an.nosp@m.alog..nosp@m.com)

Copyright 2019(c) Analog Devices, Inc.

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

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. 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.
3. 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.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 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

altera_spi_init()

int32_t altera_spi_init	(	struct no_os_spi_desc **	desc,
		const struct no_os_spi_init_param *	param
	)

Initialize the SPI communication peripheral.

Parameters

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

Returns

0 in case of success, -1 otherwise.

altera_spi_remove()

int32_t altera_spi_remove

(

struct no_os_spi_desc *

desc

)

Free the resources allocated by no_os_spi_init().

Parameters

desc	- The SPI descriptor.

Returns

0 in case of success, -1 otherwise.

altera_spi_write_and_read()

int32_t altera_spi_write_and_read	(	struct no_os_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

0 in case of success, -1 otherwise.

Variable Documentation

altera_spi_ops

const struct no_os_spi_platform_ops altera_spi_ops

Initial value:

= {
    .init = &altera_spi_init,
    .write_and_read = &altera_spi_write_and_read,
    .remove = &altera_spi_remove
}

Altera platform specific SPI platform ops structure.

Altera specific SPI platform ops structure.