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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* This file declares intialization functions to add
* printk polled output via termios polled drivers.
*/
/*
* Copyright (c) 2002 IMD Ingenieurbuero fuer Microcomputertechnik
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS 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.
*/
#ifndef _TERMIOS_PRINTK_H
#define _TERMIOS_PRINTK_H
#include <rtems.h>
#include <termios.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
uint32_t baudrate; /* debug baud rate, e.g. 57600 */
void (*callout)(void); /* callout pointer during polling */
const char *devname; /* debug device, e.g. "/dev/tty01" */
} termios_printk_conf_t;
/*
* must be defined in init module...
*/
extern termios_printk_conf_t termios_printk_conf;
/*=========================================================================*\
| Function: |
\*-------------------------------------------------------------------------*/
void termios_printk_outputchar
/*-------------------------------------------------------------------------*\
| Purpose: |
| send one character to serial port |
+---------------------------------------------------------------------------+
| Input Parameters: |
\*-------------------------------------------------------------------------*/
(
char c /* character to print */
);
/*-------------------------------------------------------------------------*\
| Return Value: |
| <none> |
\*=========================================================================*/
/*=========================================================================*\
| Function: |
\*-------------------------------------------------------------------------*/
int termios_printk_inputchar
/*-------------------------------------------------------------------------*\
| Purpose: |
| wait for one character from serial port |
+---------------------------------------------------------------------------+
| Input Parameters: |
\*-------------------------------------------------------------------------*/
(
void /* none */
);
/*-------------------------------------------------------------------------*\
| Return Value: |
| received character |
\*=========================================================================*/
/*=========================================================================*\
| Function: |
\*-------------------------------------------------------------------------*/
int termios_printk_open
/*-------------------------------------------------------------------------*\
| Purpose: |
| try to open given serial debug port |
+---------------------------------------------------------------------------+
| Input Parameters: |
\*-------------------------------------------------------------------------*/
(
const char *dev_name, /* name of device to open */
uint32_t baudrate /* baud rate to use */
);
/*-------------------------------------------------------------------------*\
| Return Value: |
| 0 on success, -1 and errno otherwise |
\*=========================================================================*/
#ifdef __cplusplus
}
#endif
#endif /* _TERMIOS_PRINTK_H */
|