1 /* $NetBSD: cons.c,v 1.1 2011/03/03 05:59:37 kiyohara Exp $ */
2
3 /*
4 * Copyright (c) 1990, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * the Systems Programming Group of the University of Utah Computer
9 * Science Department.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * from: Utah Hdr: cons.c 1.7 92/02/28
36 *
37 * @(#)cons.c 8.1 (Berkeley) 6/10/93
38 */
39 /*
40 * Copyright (c) 1988 University of Utah.
41 *
42 * This code is derived from software contributed to Berkeley by
43 * the Systems Programming Group of the University of Utah Computer
44 * Science Department.
45 *
46 * Redistribution and use in source and binary forms, with or without
47 * modification, are permitted provided that the following conditions
48 * are met:
49 * 1. Redistributions of source code must retain the above copyright
50 * notice, this list of conditions and the following disclaimer.
51 * 2. Redistributions in binary form must reproduce the above copyright
52 * notice, this list of conditions and the following disclaimer in the
53 * documentation and/or other materials provided with the distribution.
54 * 3. All advertising materials mentioning features or use of this software
55 * must display the following acknowledgement:
56 * This product includes software developed by the University of
57 * California, Berkeley and its contributors.
58 * 4. Neither the name of the University nor the names of its contributors
59 * may be used to endorse or promote products derived from this software
60 * without specific prior written permission.
61 *
62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
72 * SUCH DAMAGE.
73 *
74 * from: Utah Hdr: cons.c 1.7 92/02/28
75 *
76 * @(#)cons.c 8.1 (Berkeley) 6/10/93
77 */
78
79 #include <lib/libsa/stand.h>
80
81 #include <machine/cpu.h>
82
83 #include "boot.h"
84 #include "cons.h"
85
86 #ifdef CONS_SCIF
87 static void scifcnprobe(struct consdev *);
88 static void scifcninit(struct consdev *);
89 static void scifcnputchar(void *, int);
90 static int scifcngetchar(void *);
91 static int scifcnscan(void *);
92 # include "scif.h"
93 # ifndef SCIFSPEED
94 # define SCIFSPEED 19200
95 # endif
96 #endif
97
98 #ifdef CONS_COM
99 static void comcnprobe(struct consdev *);
100 static void comcninit(struct consdev *);
101 static void comcnputchar(void *, int);
102 static int comcngetchar(void *);
103 static int comcnscan(void *);
104 # include "ns16550.h"
105 # ifndef COMPORT
106 # define COMPORT 0xa4000000
107 # endif
108 # ifndef COMSPEED
109 # define COMSPEED 19200
110 # endif
111 #endif
112
113 static struct consdev constab[] = {
114 #ifdef CONS_SCIF
115 { "scif", 0, SCIFSPEED,
116 scifcnprobe, scifcninit, scifcngetchar, scifcnputchar, scifcnscan },
117 #endif
118 #ifdef CONS_COM
119 { "com", 0, COMSPEED,
120 comcnprobe, comcninit, comcngetchar, comcnputchar, comcnscan },
121 #endif
122 { 0 }
123 };
124
125 static struct consdev *cn_tab;
126
127 char *
cninit()128 cninit()
129 {
130 register struct consdev *cp;
131
132 cn_tab = NULL;
133 for (cp = constab; cp->cn_probe; cp++) {
134 (*cp->cn_probe)(cp);
135 if (cp->cn_pri > CN_DEAD &&
136 (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri))
137 cn_tab = cp;
138 }
139 if (cn_tab) {
140 (*cn_tab->cn_init)(cn_tab);
141 return cn_tab->cn_name;
142 }
143
144 return NULL;
145 }
146
147 int
cngetc(void)148 cngetc(void)
149 {
150
151 if (cn_tab)
152 return (*cn_tab->cn_getc)(cn_tab->cn_dev);
153 return 0;
154 }
155
156 void
cnputc(int c)157 cnputc(int c)
158 {
159
160 if (cn_tab)
161 (*cn_tab->cn_putc)(cn_tab->cn_dev, c);
162 }
163
164 int
cnscan(void)165 cnscan(void)
166 {
167
168 if (cn_tab)
169 return (*cn_tab->cn_scan)(cn_tab->cn_dev);
170 return -1;
171 }
172
173 #ifdef CONS_SCIF
174 /*
175 * sh3 scif console
176 */
177 static void
scifcnprobe(struct consdev * cp)178 scifcnprobe(struct consdev *cp)
179 {
180
181 cp->cn_pri = CN_REMOTE;
182 }
183
184 static void
scifcninit(struct consdev * cp)185 scifcninit(struct consdev *cp)
186 {
187
188 cp->cn_dev = scif_init(cp->speed);
189 }
190
191 static int
scifcngetchar(void * dev)192 scifcngetchar(void *dev)
193 {
194
195 return scif_getc();
196 }
197
198 static void
scifcnputchar(void * dev,int c)199 scifcnputchar(void *dev, int c)
200 {
201
202 if (c == '\n')
203 scif_putc('\r');
204 scif_putc(c);
205 }
206
207 static int
scifcnscan(void * dev)208 scifcnscan(void *dev)
209 {
210
211 return scif_scankbd();
212 }
213 #endif /* CONS_SCIF */
214
215 #ifdef CONS_COM
216 /*
217 * com console
218 */
219 static void
comcnprobe(struct consdev * cp)220 comcnprobe(struct consdev *cp)
221 {
222
223 cp->cn_pri = CN_REMOTE;
224 }
225
226 static void
comcninit(struct consdev * cp)227 comcninit(struct consdev *cp)
228 {
229
230 cp->cn_dev = com_init(cp->address, cp->speed);
231 }
232
233 static int
comcngetchar(void * dev)234 comcngetchar(void *dev)
235 {
236
237 return com_getc(dev);
238 }
239
240 static void
comcnputchar(void * dev,int c)241 comcnputchar(void *dev, int c)
242 {
243
244 if (c == '\n')
245 com_putc(dev, '\r');
246 com_putc(dev, c);
247 }
248
249 static int
comcnscan(void * dev)250 comcnscan(void *dev)
251 {
252
253 return com_scankbd(dev);
254 }
255 #endif /* CONS_COM */
256