1/*	$NetBSD: gfttyvar.h,v 1.2 2024/01/06 17:52:43 thorpej Exp $	*/
2
3/*-
4 * Copyright (c) 2023 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _DEV_GOLDFISH_GFTTYVAR_H_
33#define	_DEV_GOLDFISH_GFTTYVAR_H_
34
35#include <sys/bus.h>
36#include <sys/mutex.h>
37#include <sys/tty.h>
38
39struct gftty_config {
40	bus_space_tag_t		c_bst;
41	bus_space_handle_t	c_bsh;
42	uint32_t		c_version;
43};
44
45struct gftty_softc {
46	device_t		sc_dev;
47	struct gftty_config	*sc_config;
48
49	void			*sc_ih;
50	void			*sc_rx_si;
51
52	bus_dma_tag_t		sc_dmat;
53	bus_dmamap_t		sc_tx_dma;
54	bus_dmamap_t		sc_rx_dma;
55
56	kmutex_t		sc_hwlock;	/* locks DMA pointer */
57
58	struct tty		*sc_tty;
59	char			*sc_rxbufs[2];
60	bus_addr_t		sc_rxaddrs[2];
61	char			*sc_rxbuf;	/* tty lock */
62	bus_addr_t		sc_rxaddr;	/* tty lock */
63	int			sc_rxpos;	/* tty lock */
64	int			sc_rxcur;	/* tty lock */
65};
66
67void	gftty_attach(struct gftty_softc *sc);
68bool	gftty_is_console(struct gftty_softc *sc);
69void	gftty_alloc_config(struct gftty_softc *sc, bus_space_tag_t,
70	    bus_space_handle_t);
71int	gftty_intr(void *);
72void	gftty_cnattach(bus_space_tag_t, bus_space_handle_t);
73
74#endif /* _DEV_GOLDFISH_GFTTYVAR_H_ */
75