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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSDeviceGRLIBAPBUART
*
* @brief This header file defines the APBUART interface.
*/
/*
* Copyright (C) 2021 embedded brains GmbH & Co. KG
*
* 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.
*/
/*
* This file is part of the RTEMS quality process and was automatically
* generated. If you find something that needs to be fixed or
* worded better please post a report or patch to an RTEMS mailing list
* or raise a bug report:
*
* https://www.rtems.org/bugs.html
*
* For information on updating and regenerating please refer to the How-To
* section in the Software Requirements Engineering chapter of the
* RTEMS Software Engineering manual. The manual is provided as a part of
* a release. For development sources please refer to the online
* documentation at:
*
* https://docs.rtems.org
*/
/* Generated from spec:/dev/grlib/if/apbuart-header-2 */
#ifndef _GRLIB_APBUART_H
#define _GRLIB_APBUART_H
#include <grlib/apbuart-regs.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Generated from spec:/dev/grlib/if/apbuart-inbyte-nonblocking */
/**
* @ingroup RTEMSDeviceGRLIBAPBUART
*
* @brief Clears all errors and tries to get one character from the receiver
* FIFO.
*
* @param regs is the pointer to the APBUART register block.
*
* @retval -1 The receiver FIFO was empty.
*
* @return Returns the first character of the receiver FIFO if it was
* non-empty.
*/
int apbuart_inbyte_nonblocking( apbuart *regs );
/* Generated from spec:/dev/grlib/if/apbuart-outbyte-polled */
/**
* @ingroup RTEMSDeviceGRLIBAPBUART
*
* @brief Waits until an empty transmitter FIFO was observed and then stores
* the character to the data register.
*
* @param regs is the pointer to the APBUART register block.
*
* @param ch is the character to output.
*/
void apbuart_outbyte_polled( apbuart *regs, char ch );
/* Generated from spec:/dev/grlib/if/apbuart-outbyte-wait */
/**
* @ingroup RTEMSDeviceGRLIBAPBUART
*
* @brief Ensures that at least once an empty transmitter FIFO was observed.
*
* @param regs is the pointer to the APBUART register block.
*/
void apbuart_outbyte_wait( const apbuart *regs );
#ifdef __cplusplus
}
#endif
#endif /* _GRLIB_APBUART_H */
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