com_mainbus.c revision 1.6 
1/*	$NetBSD: com_mainbus.c,v 1.6 2005/12/11 12:18:16 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *        This product includes software developed by the NetBSD
18 *        Foundation, Inc. and its contributors.
19 * 4. Neither the name of The NetBSD Foundation nor the names of its
20 *    contributors may be used to endorse or promote products derived
21 *    from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35
36#include <sys/cdefs.h>
37__KERNEL_RCSID(0, "$NetBSD: com_mainbus.c,v 1.6 2005/12/11 12:18:16 christos Exp $");
38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/device.h>
42
43#include <sys/termios.h>
44#include <dev/cons.h>
45#include <sys/conf.h>
46
47#include <machine/bus.h>
48#include <machine/intr.h>
49#include <machine/autoconf.h>
50#include <machine/mmeye.h>
51
52#include <dev/ic/comvar.h>
53#include <dev/ic/comreg.h>
54
55#ifndef COMCN_SPEED
56#define COMCN_SPEED	19200
57#endif
58#ifndef CONADDR
59#define CONADDR		0xa4000000
60#endif
61#ifndef CONMODE
62#define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
63#endif
64
65struct com_mainbus_softc {
66	struct	com_softc sc_com;	/* real "com" softc */
67};
68
69int com_mainbus_match(struct device *, struct cfdata *, void *);
70void com_mainbus_attach(struct device *, struct device *, void *);
71void comcnprobe(struct consdev *);
72void comcninit(struct consdev *);
73
74CFATTACH_DECL(com_mainbus, sizeof(struct com_mainbus_softc),
75    com_mainbus_match, com_mainbus_attach, NULL, NULL);
76
77int
78com_mainbus_match(struct device *parent, struct cfdata *match, void *aux)
79{
80	extern struct cfdriver com_cd;
81	struct mainbus_attach_args *ma = aux;
82
83	if (strcmp(ma->ma_name, com_cd.cd_name) == 0)
84		return (1);
85
86	return (0);
87}
88
89void
90com_mainbus_attach(struct device *parent, struct device *self, void *aux)
91{
92	struct mainbus_attach_args *ma = aux;
93	struct com_mainbus_softc *sc = (void *)self;
94	struct com_softc *csc = &sc->sc_com;
95
96	csc->sc_iot = 0;
97	csc->sc_ioh = ma->ma_addr1;
98	csc->sc_iobase = 0;
99	csc->sc_frequency = COM_FREQ;
100
101	/* sanity check */
102	if (!comprobe1(csc->sc_iot, csc->sc_ioh)) {
103		printf(": device problem. don't attach.\n");
104		return;
105	}
106
107	com_attach_subr(csc);
108
109	mmeye_intr_establish(ma->ma_irq1, IST_LEVEL, IPL_SERIAL, comintr, sc);
110}
111
112void
113comcnprobe(struct consdev *cp)
114{
115
116#ifdef  COMCONSOLE
117	cp->cn_pri = CN_REMOTE;	/* Force a serial port console */
118#else
119	cp->cn_pri = CN_NORMAL;
120#endif
121}
122
123void
124comcninit(cp)
125	struct consdev *cp;
126{
127
128	comcnattach(0, CONADDR, COMCN_SPEED, COM_FREQ, COM_TYPE_NORMAL,
129	    CONMODE);
130}
131