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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/* $NetBSD: com_dio.c,v 1.9 2018/12/08 17:46:11 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
*
* 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)com.c 7.5 (Berkeley) 5/16/91
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: com_dio.c,v 1.9 2018/12/08 17:46:11 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/termios.h>
#include <sys/ttydefaults.h>
#include <machine/bus.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
#include <hp300/dev/diovar.h>
#include <hp300/dev/diodevs.h>
#include <hp300/dev/com_dioreg.h>
#include <hp300/dev/com_diovar.h>
struct com_dio_softc {
struct com_softc sc_com; /* real "com" softc */
/* DIO-specific goo. */
struct bus_space_tag sc_tag; /* device specific bus space tag */
void *sc_ih; /* interrupt handler */
};
static int com_dio_match(device_t, cfdata_t , void *);
static void com_dio_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(com_dio, sizeof(struct com_dio_softc),
com_dio_match, com_dio_attach, NULL, NULL);
static int com_dio_speed = TTYDEF_SPEED;
static struct bus_space_tag comcntag;
#define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
static int
com_dio_match(device_t parent, cfdata_t match, void *aux)
{
struct dio_attach_args *da = aux;
switch (da->da_id) {
case DIO_DEVICE_ID_DCA0:
case DIO_DEVICE_ID_DCA0REM:
case DIO_DEVICE_ID_DCA1:
case DIO_DEVICE_ID_DCA1REM:
return 1;
}
return 0;
}
static void
com_dio_attach(device_t parent, device_t self, void *aux)
{
struct com_dio_softc *dsc = device_private(self);
struct com_softc *sc = &dsc->sc_com;
bus_space_tag_t iot;
bus_space_handle_t iohdca, iohcom;
struct dio_attach_args *da = aux;
int isconsole;
sc->sc_dev = self;
isconsole = com_is_console(&comcntag, da->da_addr + DCA_COM_OFFSET,
&iohcom);
if (isconsole) {
iot = &comcntag;
bus_space_unmap(iot, iohcom, COM_NPORTS);
} else {
iot = &dsc->sc_tag;
memcpy(iot, da->da_bst, sizeof(struct bus_space_tag));
dio_set_bus_space_oddbyte(iot);
}
if (bus_space_map(iot, da->da_addr, DCA_SIZE, 0, &iohdca) ||
bus_space_subregion(iot, iohdca, DCA_COM_OFFSET,
COM_NPORTS << 1, &iohcom)) {
aprint_error(": can't map i/o space\n");
return;
}
if (!isconsole) {
bus_space_write_1(iot, iohdca, DCA_RESET, 0xff);
DELAY(1000);
}
com_init_regs(&sc->sc_regs, iot, iohcom,
da->da_addr + DCA_COM_OFFSET);
sc->sc_frequency = COM_DIO_FREQ;
com_attach_subr(sc);
dsc->sc_ih = dio_intr_establish(comintr, sc, da->da_ipl, IPL_VM);
/* Enable interrupts. */
bus_space_write_1(iot, iohdca, DCA_IC, IC_IE);
}
int
com_dio_cnattach(bus_space_tag_t bst, bus_addr_t addr, int scode)
{
bus_space_tag_t iot = &comcntag;
bus_space_handle_t iohdca;
uint8_t id;
memcpy(iot, bst, sizeof(struct bus_space_tag));
dio_set_bus_space_oddbyte(iot);
if (bus_space_map(iot, addr, DCA_SIZE, 0, &iohdca))
return 1;
bus_space_write_1(iot, iohdca, DCA_RESET, 0xff);
DELAY(100);
bus_space_write_1(iot, iohdca, DCA_IC, IC_IE);
id = bus_space_read_1(iot, iohdca, DCA_ID);
bus_space_unmap(iot, iohdca, DCA_SIZE);
switch (id) {
#ifdef CONSCODE
case DCAID0:
case DCAID1:
#endif
case DCAREMID0:
case DCAREMID1:
break;
default:
return 1;
}
comcnattach(iot, addr + DCA_COM_OFFSET, com_dio_speed, COM_DIO_FREQ,
COM_TYPE_NORMAL, CONMODE);
return 0;
}
|