1/*      $NetBSD: ixp12x0_comvar.h,v 1.5 2003/03/06 06:17:43 igy Exp $        */
2/*-
3 * Copyright (c) 2001, The NetBSD Foundation, Inc.  All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by IWAMOTO Toshihiro and Ichiro FUKUHARA.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#ifndef _IXP12X0_COMVAR_H_
31#define _IXP12X0_COMVAR_H_
32
33/* Hardware flag masks */
34#define COM_HW_NOIEN		0x01
35#define COM_HW_DEV_OK		0x20
36#define COM_HW_CONSOLE		0x40
37#define COM_HW_KGDB		0x80
38
39#define RX_TTY_BLOCKED		0x01
40#define RX_TTY_OVERFLOWED	0x02
41#define RX_IBUF_BLOCKED		0x04
42#define RX_IBUF_OVERFLOWED	0x08
43#define RX_ANY_BLOCK		0x0f
44
45#define IXPCOM_RING_SIZE	2048
46
47struct ixpcom_softc {
48	struct device		sc_dev;
49	bus_addr_t		sc_baseaddr;
50	bus_space_tag_t		sc_iot;
51	bus_space_handle_t 	sc_ioh;
52
53	void			*sc_si;
54
55	struct tty		*sc_tty;
56
57	u_char			*sc_rbuf, *sc_ebuf;
58
59 	u_char			*sc_tba;
60 	u_int			sc_tbc, sc_heldtbc;
61
62	u_char			*volatile sc_rbget,
63				*volatile sc_rbput;
64 	volatile u_int		sc_rbavail;
65
66	/* status flags */
67	int			sc_hwflags, sc_swflags;
68
69	volatile u_int		sc_rx_flags,
70				sc_tx_busy,
71				sc_tx_done,
72				sc_tx_stopped,
73				sc_st_check,
74				sc_rx_ready;
75	volatile int		sc_heldchange;
76
77	/* control registers */
78	u_int			sc_xie;
79	u_int			sc_rie;
80	u_int			sc_speed;
81
82	/* power management hooks */
83	int			(*enable)(struct ixpcom_softc *);
84	int			(*disable)(struct ixpcom_softc *);
85
86	int			enabled;
87};
88
89extern struct ixpcom_softc* ixpcom_sc;
90
91void	ixpcom_attach_subr(struct ixpcom_softc *);
92
93int	ixpcomintr(void* arg);
94int	ixpcomcnattach(bus_space_tag_t, bus_addr_t, bus_space_handle_t,
95		       int, tcflag_t);
96
97#endif /* _IXP12X0_COMVAR_H_ */
98