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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2003 Marcel Moolenaar
* 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 AUTHOR ``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 AUTHOR 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 _DEV_UART_DEV_NS8250_H_
#define _DEV_UART_DEV_NS8250_H_
/*
* High-level UART interface.
*/
struct ns8250_softc {
struct uart_softc base;
uint8_t fcr;
uint8_t ier;
uint8_t mcr;
uint8_t ier_mask;
uint8_t ier_rxbits;
uint8_t busy_detect;
int noise_count;
};
extern struct uart_ops uart_ns8250_ops;
int ns8250_bus_attach(struct uart_softc *);
int ns8250_bus_detach(struct uart_softc *);
int ns8250_bus_flush(struct uart_softc *, int);
int ns8250_bus_getsig(struct uart_softc *);
int ns8250_bus_ioctl(struct uart_softc *, int, intptr_t);
int ns8250_bus_ipend(struct uart_softc *);
int ns8250_bus_param(struct uart_softc *, int, int, int, int);
int ns8250_bus_probe(struct uart_softc *);
int ns8250_bus_receive(struct uart_softc *);
int ns8250_bus_setsig(struct uart_softc *, int);
int ns8250_bus_transmit(struct uart_softc *);
void ns8250_bus_grab(struct uart_softc *);
bool ns8250_bus_txbusy(struct uart_softc *);
void ns8250_bus_ungrab(struct uart_softc *);
#endif /* _DEV_UART_DEV_NS8250_H_ */
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