1/*-
2 * Copyright (C) 2001 Benno Rice.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
21 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
22 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
23 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
| 1/*-
2 * Copyright (C) 2001 Benno Rice.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
21 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
22 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
23 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
|
27__FBSDID("$FreeBSD: head/sys/dev/ofw/ofw_console.c 225214 2011-08-27 14:24:27Z rwatson $");
| 27__FBSDID("$FreeBSD: head/sys/dev/ofw/ofw_console.c 228631 2011-12-17 15:08:43Z avg $");
|
28
29#include "opt_ofw.h"
30
31#include <sys/param.h>
32#include <sys/kdb.h>
33#include <sys/kernel.h>
34#include <sys/priv.h>
35#include <sys/systm.h>
36#include <sys/types.h>
37#include <sys/conf.h>
38#include <sys/cons.h>
39#include <sys/consio.h>
40#include <sys/tty.h>
41
42#include <dev/ofw/openfirm.h>
43
44#include <ddb/ddb.h>
45
46#ifndef OFWCONS_POLL_HZ
47#define OFWCONS_POLL_HZ 4 /* 50-100 works best on Ultra2 */
48#endif
49#define OFBURSTLEN 128 /* max number of bytes to write in one chunk */
50
51static tsw_open_t ofwtty_open;
52static tsw_close_t ofwtty_close;
53static tsw_outwakeup_t ofwtty_outwakeup;
54
55static struct ttydevsw ofw_ttydevsw = {
56 .tsw_flags = TF_NOPREFIX,
57 .tsw_open = ofwtty_open,
58 .tsw_close = ofwtty_close,
59 .tsw_outwakeup = ofwtty_outwakeup,
60};
61
62static int polltime;
63static struct callout_handle ofw_timeouthandle
64 = CALLOUT_HANDLE_INITIALIZER(&ofw_timeouthandle);
65
66#if defined(KDB)
67static int alt_break_state;
68#endif
69
70static void ofw_timeout(void *);
71
72static cn_probe_t ofw_cnprobe;
73static cn_init_t ofw_cninit;
74static cn_term_t ofw_cnterm;
75static cn_getc_t ofw_cngetc;
76static cn_putc_t ofw_cnputc;
| 28
29#include "opt_ofw.h"
30
31#include <sys/param.h>
32#include <sys/kdb.h>
33#include <sys/kernel.h>
34#include <sys/priv.h>
35#include <sys/systm.h>
36#include <sys/types.h>
37#include <sys/conf.h>
38#include <sys/cons.h>
39#include <sys/consio.h>
40#include <sys/tty.h>
41
42#include <dev/ofw/openfirm.h>
43
44#include <ddb/ddb.h>
45
46#ifndef OFWCONS_POLL_HZ
47#define OFWCONS_POLL_HZ 4 /* 50-100 works best on Ultra2 */
48#endif
49#define OFBURSTLEN 128 /* max number of bytes to write in one chunk */
50
51static tsw_open_t ofwtty_open;
52static tsw_close_t ofwtty_close;
53static tsw_outwakeup_t ofwtty_outwakeup;
54
55static struct ttydevsw ofw_ttydevsw = {
56 .tsw_flags = TF_NOPREFIX,
57 .tsw_open = ofwtty_open,
58 .tsw_close = ofwtty_close,
59 .tsw_outwakeup = ofwtty_outwakeup,
60};
61
62static int polltime;
63static struct callout_handle ofw_timeouthandle
64 = CALLOUT_HANDLE_INITIALIZER(&ofw_timeouthandle);
65
66#if defined(KDB)
67static int alt_break_state;
68#endif
69
70static void ofw_timeout(void *);
71
72static cn_probe_t ofw_cnprobe;
73static cn_init_t ofw_cninit;
74static cn_term_t ofw_cnterm;
75static cn_getc_t ofw_cngetc;
76static cn_putc_t ofw_cnputc;
|
| 77static cn_grab_t ofw_cngrab;
78static cn_ungrab_t ofw_cnungrab;
|
77
78CONSOLE_DRIVER(ofw);
79
80static void
81cn_drvinit(void *unused)
82{
83 phandle_t options;
84 char output[32];
85 struct tty *tp;
86
87 if (ofw_consdev.cn_pri != CN_DEAD &&
88 ofw_consdev.cn_name[0] != '\0') {
89 if ((options = OF_finddevice("/options")) == -1 ||
90 OF_getprop(options, "output-device", output,
91 sizeof(output)) == -1)
92 return;
93 /*
94 * XXX: This is a hack and it may result in two /dev/ttya
95 * XXX: devices on platforms where the sab driver works.
96 */
97 tp = tty_alloc(&ofw_ttydevsw, NULL);
98 tty_makedev(tp, NULL, "%s", output);
99 tty_makealias(tp, "ofwcons");
100 }
101}
102
103SYSINIT(cndev, SI_SUB_CONFIGURE, SI_ORDER_MIDDLE, cn_drvinit, NULL);
104
105static int stdin;
106static int stdout;
107
108static int
109ofwtty_open(struct tty *tp)
110{
111 polltime = hz / OFWCONS_POLL_HZ;
112 if (polltime < 1)
113 polltime = 1;
114
115 ofw_timeouthandle = timeout(ofw_timeout, tp, polltime);
116
117 return (0);
118}
119
120static void
121ofwtty_close(struct tty *tp)
122{
123
124 /* XXX Should be replaced with callout_stop(9) */
125 untimeout(ofw_timeout, tp, ofw_timeouthandle);
126}
127
128static void
129ofwtty_outwakeup(struct tty *tp)
130{
131 int len;
132 u_char buf[OFBURSTLEN];
133
134 for (;;) {
135 len = ttydisc_getc(tp, buf, sizeof buf);
136 if (len == 0)
137 break;
138 OF_write(stdout, buf, len);
139 }
140}
141
142static void
143ofw_timeout(void *v)
144{
145 struct tty *tp;
146 int c;
147
148 tp = (struct tty *)v;
149
150 tty_lock(tp);
151 while ((c = ofw_cngetc(NULL)) != -1)
152 ttydisc_rint(tp, c, 0);
153 ttydisc_rint_done(tp);
154 tty_unlock(tp);
155
156 ofw_timeouthandle = timeout(ofw_timeout, tp, polltime);
157}
158
159static void
160ofw_cnprobe(struct consdev *cp)
161{
162 int chosen;
163
164 if ((chosen = OF_finddevice("/chosen")) == -1) {
165 cp->cn_pri = CN_DEAD;
166 return;
167 }
168
169 if (OF_getprop(chosen, "stdin", &stdin, sizeof(stdin)) == -1) {
170 cp->cn_pri = CN_DEAD;
171 return;
172 }
173
174 if (OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)) == -1) {
175 cp->cn_pri = CN_DEAD;
176 return;
177 }
178
179 cp->cn_pri = CN_LOW;
180}
181
182static void
183ofw_cninit(struct consdev *cp)
184{
185
186 /* XXX: This is the alias, but that should be good enough */
187 strcpy(cp->cn_name, "ofwcons");
188}
189
190static void
191ofw_cnterm(struct consdev *cp)
192{
193}
194
| 79
80CONSOLE_DRIVER(ofw);
81
82static void
83cn_drvinit(void *unused)
84{
85 phandle_t options;
86 char output[32];
87 struct tty *tp;
88
89 if (ofw_consdev.cn_pri != CN_DEAD &&
90 ofw_consdev.cn_name[0] != '\0') {
91 if ((options = OF_finddevice("/options")) == -1 ||
92 OF_getprop(options, "output-device", output,
93 sizeof(output)) == -1)
94 return;
95 /*
96 * XXX: This is a hack and it may result in two /dev/ttya
97 * XXX: devices on platforms where the sab driver works.
98 */
99 tp = tty_alloc(&ofw_ttydevsw, NULL);
100 tty_makedev(tp, NULL, "%s", output);
101 tty_makealias(tp, "ofwcons");
102 }
103}
104
105SYSINIT(cndev, SI_SUB_CONFIGURE, SI_ORDER_MIDDLE, cn_drvinit, NULL);
106
107static int stdin;
108static int stdout;
109
110static int
111ofwtty_open(struct tty *tp)
112{
113 polltime = hz / OFWCONS_POLL_HZ;
114 if (polltime < 1)
115 polltime = 1;
116
117 ofw_timeouthandle = timeout(ofw_timeout, tp, polltime);
118
119 return (0);
120}
121
122static void
123ofwtty_close(struct tty *tp)
124{
125
126 /* XXX Should be replaced with callout_stop(9) */
127 untimeout(ofw_timeout, tp, ofw_timeouthandle);
128}
129
130static void
131ofwtty_outwakeup(struct tty *tp)
132{
133 int len;
134 u_char buf[OFBURSTLEN];
135
136 for (;;) {
137 len = ttydisc_getc(tp, buf, sizeof buf);
138 if (len == 0)
139 break;
140 OF_write(stdout, buf, len);
141 }
142}
143
144static void
145ofw_timeout(void *v)
146{
147 struct tty *tp;
148 int c;
149
150 tp = (struct tty *)v;
151
152 tty_lock(tp);
153 while ((c = ofw_cngetc(NULL)) != -1)
154 ttydisc_rint(tp, c, 0);
155 ttydisc_rint_done(tp);
156 tty_unlock(tp);
157
158 ofw_timeouthandle = timeout(ofw_timeout, tp, polltime);
159}
160
161static void
162ofw_cnprobe(struct consdev *cp)
163{
164 int chosen;
165
166 if ((chosen = OF_finddevice("/chosen")) == -1) {
167 cp->cn_pri = CN_DEAD;
168 return;
169 }
170
171 if (OF_getprop(chosen, "stdin", &stdin, sizeof(stdin)) == -1) {
172 cp->cn_pri = CN_DEAD;
173 return;
174 }
175
176 if (OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)) == -1) {
177 cp->cn_pri = CN_DEAD;
178 return;
179 }
180
181 cp->cn_pri = CN_LOW;
182}
183
184static void
185ofw_cninit(struct consdev *cp)
186{
187
188 /* XXX: This is the alias, but that should be good enough */
189 strcpy(cp->cn_name, "ofwcons");
190}
191
192static void
193ofw_cnterm(struct consdev *cp)
194{
195}
196
|
| 197static void
198ofw_cngrab(struct consdev *cp)
199{
200}
201
202static void
203ofw_cnungrab(struct consdev *cp)
204{
205}
206
|
195static int
196ofw_cngetc(struct consdev *cp)
197{
198 unsigned char ch;
199
200 if (OF_read(stdin, &ch, 1) > 0) {
201#if defined(KDB)
202 kdb_alt_break(ch, &alt_break_state);
203#endif
204 return (ch);
205 }
206
207 return (-1);
208}
209
210static void
211ofw_cnputc(struct consdev *cp, int c)
212{
213 char cbuf;
214
215 if (c == '\n') {
216 cbuf = '\r';
217 OF_write(stdout, &cbuf, 1);
218 }
219
220 cbuf = c;
221 OF_write(stdout, &cbuf, 1);
222}
| 207static int
208ofw_cngetc(struct consdev *cp)
209{
210 unsigned char ch;
211
212 if (OF_read(stdin, &ch, 1) > 0) {
213#if defined(KDB)
214 kdb_alt_break(ch, &alt_break_state);
215#endif
216 return (ch);
217 }
218
219 return (-1);
220}
221
222static void
223ofw_cnputc(struct consdev *cp, int c)
224{
225 char cbuf;
226
227 if (c == '\n') {
228 cbuf = '\r';
229 OF_write(stdout, &cbuf, 1);
230 }
231
232 cbuf = c;
233 OF_write(stdout, &cbuf, 1);
234}
|