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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/* $OpenBSD: asio.c,v 1.10 2003/06/27 01:50:52 jason Exp $ */
/*
* Copyright (c) 2002 Jason L. Wright (jason@thought.net)
* 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.
*
* 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.
*
* Effort sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F30602-01-2-0537.
*
*/
/*
* Driver for Aurora 210SJ serial ports.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/conf.h>
#include <sys/timeout.h>
#include <sys/tty.h>
#include <machine/bus.h>
#include <machine/autoconf.h>
#include <machine/openfirm.h>
#include <dev/sbus/sbusvar.h>
#include <dev/sbus/asioreg.h>
#include <dev/ic/comvar.h>
#include "asio.h"
#define BAUD_BASE (1843200)
struct asio_port {
u_int8_t ap_inten;
bus_space_handle_t ap_bh;
struct device *ap_dev;
};
struct asio_softc {
struct device sc_dev;
bus_space_tag_t sc_bt;
bus_space_handle_t sc_csr_h;
void *sc_ih;
struct asio_port sc_ports[2];
int sc_nports;
};
struct asio_attach_args {
char *aaa_name;
int aaa_port;
bus_space_tag_t aaa_iot;
bus_space_handle_t aaa_ioh;
u_int32_t aaa_pri;
u_int8_t aaa_inten;
};
int asio_match(struct device *, void *, void *);
void asio_attach(struct device *, struct device *, void *);
int asio_print(void *, const char *);
void asio_intr_enable(struct device *, u_int8_t);
struct cfattach asio_ca = {
sizeof(struct asio_softc), asio_match, asio_attach
};
struct cfdriver asio_cd = {
NULL, "asio", DV_DULL
};
int
asio_match(struct device *parent, void *match, void *aux)
{
struct sbus_attach_args *sa = aux;
if (strcmp(sa->sa_name, "sio2") == 0)
return (1);
return (0);
}
void
asio_attach(struct device *parent, struct device *self, void *aux)
{
struct asio_softc *sc = (void *)self;
struct sbus_attach_args *sa = aux;
struct asio_attach_args aaa;
int i;
char *model;
sc->sc_bt = sa->sa_bustag;
sc->sc_nports = 2;
model = getpropstring(sa->sa_node, "model");
if (model == NULL) {
printf(": empty model, unsupported\n");
return;
}
if (strcmp(model, "210sj") != 0) {
printf(": unsupported model %s\n", model);
return;
}
if (sa->sa_nreg < 3) {
printf(": %d registers expected, got %d\n",
3, sa->sa_nreg);
return;
}
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot,
sa->sa_reg[0].sbr_offset, sa->sa_reg[0].sbr_size,
0, 0, &sc->sc_csr_h)) {
printf(": couldn't map csr\n");
return;
}
for (i = 0; i < sc->sc_nports; i++) {
if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[i + 1].sbr_slot,
sa->sa_reg[i + 1].sbr_offset, sa->sa_reg[i + 1].sbr_size,
0, 0, &sc->sc_ports[i].ap_bh)) {
printf(": couldn't map uart%d\n", i);
return;
}
}
sc->sc_ports[0].ap_inten = ASIO_CSR_SJ_UART0_INTEN;
sc->sc_ports[1].ap_inten = ASIO_CSR_UART1_INTEN;
printf(": %s\n", model);
for (i = 0; i < sc->sc_nports; i++) {
aaa.aaa_name = "com";
aaa.aaa_port = i;
aaa.aaa_iot = sc->sc_bt;
aaa.aaa_ioh = sc->sc_ports[i].ap_bh;
aaa.aaa_inten = sc->sc_ports[i].ap_inten;
aaa.aaa_pri = sa->sa_intr[0].sbi_pri;
sc->sc_ports[i].ap_dev = config_found(self, &aaa, asio_print);
}
}
int
asio_print(void *aux, const char *name)
{
struct asio_attach_args *aaa = aux;
if (name != NULL)
printf("%s at %s", aaa->aaa_name, name);
printf(" port %d", aaa->aaa_port);
return (UNCONF);
}
#if NCOM_ASIO > 0
int com_asio_match(struct device *, void *, void *);
void com_asio_attach(struct device *, struct device *, void *);
struct cfattach com_asio_ca = {
sizeof(struct com_softc), com_asio_match, com_asio_attach
};
void
asio_intr_enable(struct device *dv, u_int8_t en)
{
struct asio_softc *sc = (struct asio_softc *)dv;
u_int8_t csr;
csr = bus_space_read_1(sc->sc_bt, sc->sc_csr_h, 0);
csr &= ~(ASIO_CSR_SBUS_INT7 | ASIO_CSR_SBUS_INT6);
csr |= ASIO_CSR_SBUS_INT5 | en;
bus_space_write_1(sc->sc_bt, sc->sc_csr_h, 0, csr);
}
int
com_asio_match(struct device *parent, void *match, void *aux)
{
return (1);
}
void
com_asio_attach(struct device *parent, struct device *self, void *aux)
{
struct com_softc *sc = (struct com_softc *)self;
struct asio_attach_args *aaa = aux;
sc->sc_iot = aaa->aaa_iot;
sc->sc_ioh = aaa->aaa_ioh;
sc->sc_iobase = 0; /* XXX WTF is iobase for? It used to be the lower 32 bits of ioh's vaddr... */
sc->sc_hwflags = 0;
sc->sc_swflags = 0;
sc->sc_frequency = BAUD_BASE;
sc->sc_ih = bus_intr_establish(aaa->aaa_iot, aaa->aaa_pri,
IPL_TTY, 0, comintr, sc, self->dv_xname);
if (sc->sc_ih == NULL) {
printf(": cannot allocate intr\n");
return;
}
asio_intr_enable(parent, aaa->aaa_inten);
com_attach_subr(sc);
}
#endif
|
