uart_dev_ns8250.h revision 331722 
1/*-
2 * Copyright (c) 2003 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: stable/11/sys/dev/uart/uart_dev_ns8250.h 331722 2018-03-29 02:50:57Z eadler $
27 */
28
29#ifndef _DEV_UART_DEV_NS8250_H_
30#define _DEV_UART_DEV_NS8250_H_
31
32/*
33 * High-level UART interface.
34 */
35struct ns8250_softc {
36	struct uart_softc base;
37	uint8_t		fcr;
38	uint8_t		ier;
39	uint8_t		mcr;
40
41	uint8_t		ier_mask;
42	uint8_t		ier_rxbits;
43	uint8_t		busy_detect;
44};
45
46extern struct uart_ops uart_ns8250_ops;
47
48int ns8250_bus_attach(struct uart_softc *);
49int ns8250_bus_detach(struct uart_softc *);
50int ns8250_bus_flush(struct uart_softc *, int);
51int ns8250_bus_getsig(struct uart_softc *);
52int ns8250_bus_ioctl(struct uart_softc *, int, intptr_t);
53int ns8250_bus_ipend(struct uart_softc *);
54int ns8250_bus_param(struct uart_softc *, int, int, int, int);
55int ns8250_bus_probe(struct uart_softc *);
56int ns8250_bus_receive(struct uart_softc *);
57int ns8250_bus_setsig(struct uart_softc *, int);
58int ns8250_bus_transmit(struct uart_softc *);
59void ns8250_bus_grab(struct uart_softc *);
60void ns8250_bus_ungrab(struct uart_softc *);
61
62#endif /* _DEV_UART_DEV_NS8250_H_ */
63