1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/* $OpenBSD: com_lbus.c,v 1.4 2004/10/20 12:49:15 pefo Exp $ */
/*
* Copyright (c) 2001-2004 Opsycon AB (www.opsycon.se / www.opsycon.com)
*
* 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.
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/tty.h>
#include <machine/autoconf.h>
#include <mips64/archtype.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
#include <dev/ic/ns16550reg.h>
int com_localbus_probe(struct device *, void *, void *);
void com_localbus_attach(struct device *, struct device *, void *);
struct cfattach com_localbus_ca = {
sizeof(struct com_softc), com_localbus_probe, com_localbus_attach
};
struct cfattach com_xbow_ca = {
sizeof(struct com_softc), com_localbus_probe, com_localbus_attach
};
extern void com_raisedtr(void *);
extern struct timeout compoll_to;
int
com_localbus_probe(parent, match, aux)
struct device *parent;
void *match, *aux;
{
bus_space_tag_t iot;
bus_space_handle_t ioh;
struct cfdata *cf = match;
struct confargs *ca = aux;
bus_addr_t iobase, rv = 0;
/*
* Check if this is our com. If low nibble is 0 match
* against system CLASS. Else a perfect match is checked.
*/
if ((ca->ca_sys & 0x000f) == 0) {
if (ca->ca_sys != (sys_config.system_type & 0xfff0))
return 0;
} else if (ca->ca_sys != sys_config.system_type)
return 0;
iobase = (bus_addr_t)sys_config.cons_ioaddr[cf->cf_unit];
if (iobase) {
iot = sys_config.cons_iot;
/* if it's in use as console, it's there. */
if (!(iobase == comconsaddr && !comconsattached)) {
bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh);
rv = comprobe1(iot, ioh);
} else {
rv = 1;
}
}
return (rv);
}
void
com_localbus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct com_softc *sc = (void *)self;
int intr;
bus_addr_t iobase;
bus_space_handle_t ioh;
struct confargs *ca = aux;
sc->sc_hwflags = 0;
sc->sc_swflags = 0;
iobase = (bus_addr_t)sys_config.cons_ioaddr[sc->sc_dev.dv_unit];
intr = ca->ca_intr;
sc->sc_iobase = iobase;
sc->sc_frequency = sys_config.cons_baudclk;
sc->sc_iot = sys_config.cons_iot;
/* if it's in use as console, it's there. */
if (!(iobase == comconsaddr && !comconsattached)) {
if (bus_space_map(sc->sc_iot, iobase, COM_NPORTS, 0, &ioh)) {
panic("unexpected bus_space_map failure");
}
}
else {
ioh = comconsioh;
}
sc->sc_ioh = ioh;
com_attach_subr(sc);
/* Enable IE pin. Some boards are not edge sensitive */
SET(sc->sc_mcr, MCR_IENABLE);
bus_space_write_1(sc->sc_iot, sc->sc_ioh, com_mcr, sc->sc_mcr);
BUS_INTR_ESTABLISH(ca, NULL, intr, IST_EDGE, IPL_TTY,
comintr, (void *)sc, sc->sc_dev.dv_xname);
}
|
