linux_uart.c File Reference

Implementation of Linux platform UART Driver. More...

#include "no_os_error.h"
#include "no_os_uart.h"
#include "linux_uart.h"
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
#include <sys/ioctl.h>

Include dependency graph for linux_uart.c:

Classes
struct	linux_uart_desc
	Linux platform specific UART descriptor. More...

Functions
int32_t	no_os_uart_init (struct no_os_uart_desc **desc, struct no_os_uart_init_param *param)
	Initialize the UART communication peripheral. More...
int32_t	no_os_uart_remove (struct no_os_uart_desc *desc)
	Free the resources allocated by no_os_uart_init(). More...
int32_t	no_os_uart_write (struct no_os_uart_desc *desc, const uint8_t *data, uint32_t bytes_number)
	Write data to UART device. More...
int32_t	no_os_uart_read (struct no_os_uart_desc *desc, uint8_t *data, uint32_t bytes_number)
	Read data from UART device. More...

Detailed Description

Implementation of Linux platform UART Driver.

Author

Dragos Bogdan (drago.nosp@m.s.bo.nosp@m.gdan@.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

no_os_uart_init()

int32_t no_os_uart_init	(	struct no_os_uart_desc **	desc,
		struct no_os_uart_init_param *	param
	)

Initialize the UART communication peripheral.

Parameters

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

Returns

0 in case of success, error code otherwise.

no_os_uart_read()

int32_t no_os_uart_read	(	struct no_os_uart_desc *	desc,
		uint8_t *	data,
		uint32_t	bytes_number
	)

Read data from UART device.

Read data from UART. Blocking function.

Parameters

desc	- Instance of UART.
data	- Pointer to buffer containing data.
bytes_number	- Number of bytes to read.

Returns

0 in case of success, -1 otherwise.

no_os_uart_remove()

int32_t no_os_uart_remove

(

struct no_os_uart_desc *

desc

)

Free the resources allocated by no_os_uart_init().

Free the resources allocated by no_os_uart_init().

Parameters

desc	- The UART descriptor.

Returns

0 in case of success, -1 otherwise.

no_os_uart_write()

int32_t no_os_uart_write	(	struct no_os_uart_desc *	desc,
		const uint8_t *	data,
		uint32_t	bytes_number
	)

Write data to UART device.

Write data to UART. Blocking function.

Parameters

desc	- Instance of UART.
data	- Pointer to buffer containing data.
bytes_number	- Number of bytes to read.

Returns

0 in case of success, -1 otherwise.