summaryrefslogtreecommitdiff
path: root/sys/dev/cons.h
blob: a0e07d4cb5bd4f8028573df79716a41034bc7499 (plain)
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
/*	$NetBSD: cons.h,v 1.22 2003/10/17 18:16:43 cdi Exp $	*/

/*
 * Copyright (c) 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * 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.
 *
 * from: Utah $Hdr: cons.h 1.6 92/01/21$
 *
 *	@(#)cons.h	8.1 (Berkeley) 6/10/93
 */

/*
 * Copyright (c) 1988 University of Utah.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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.
 *
 * from: Utah $Hdr: cons.h 1.6 92/01/21$
 *
 *	@(#)cons.h	8.1 (Berkeley) 6/10/93
 */

#ifndef _SYS_DEV_CONS_H_
#define _SYS_DEV_CONS_H_

struct consdev {
	void	(*cn_probe)	/* probe hardware and fill in consdev info */
		    __P((struct consdev *));
	void	(*cn_init)	/* turn on as console */
		    __P((struct consdev *));
	int	(*cn_getc)	/* kernel getchar interface */
		    __P((dev_t));
	void	(*cn_putc)	/* kernel putchar interface */
		    __P((dev_t, int));
	void	(*cn_pollc)	/* turn on and off polling */
		    __P((dev_t, int));
	void	(*cn_bell)	/* ring bell */
		    __P((dev_t, u_int, u_int, u_int));
	void	(*cn_halt)	/* stop device */
		    __P((dev_t));
	void	(*cn_flush)	/* flush output */
		    __P((dev_t));
	dev_t	cn_dev;		/* major/minor of device */
	int	cn_pri;		/* pecking order; the higher the better */
};

/* values for cn_pri - reflect our policy for console selection */
#define	CN_DEAD		0	/* device doesn't exist */
#define CN_NULL		1	/* noop console */
#define CN_NORMAL	2	/* device exists but is nothing special */
#define CN_INTERNAL	3	/* "internal" bit-mapped display */
#define CN_REMOTE	4	/* serial interface with remote bit set */

#ifdef _KERNEL

extern	struct consdev constab[];
extern	struct consdev *cn_tab;

void	cninit __P((void));
int	cngetc __P((void));
int	cngetsn __P((char *, int));
void	cnputc __P((int));
void	cnpollc __P((int));
void	cnbell __P((u_int, u_int, u_int));
void	cnflush __P((void));
void	cnhalt __P((void));
void	cnrint __P((void));
void	nullcnprobe __P((struct consdev *));
void	nullcninit __P((struct consdev *));
void	nullcnpollc __P((dev_t, int));
void	nullconsattach __P((int));

/* console-specific types */
#define	dev_type_cnprobe(n)	void n __P((struct consdev *))
#define	dev_type_cninit(n)	void n __P((struct consdev *))
#define	dev_type_cngetc(n)	int n __P((dev_t))
#define	dev_type_cnputc(n)	void n __P((dev_t, int))
#define	dev_type_cnpollc(n)	void n __P((dev_t, int))
#define	dev_type_cnbell(n)	void n __P((dev_t, u_int, u_int, u_int));
#define	dev_type_cnhalt(n)	void n __P((dev_t))
#define	dev_type_cnflush(n)	void n __P((dev_t))

#define	dev_decl(n,t)		__CONCAT(dev_type_,t)(__CONCAT(n,t))
#define	dev_init(n,t)		__CONCAT(n,t)

#define	cons_decl(n) \
	dev_decl(n,cnprobe); dev_decl(n,cninit); dev_decl(n,cngetc); \
	dev_decl(n,cnputc); dev_decl(n,cnpollc); dev_decl(n,cnbell); \
	dev_decl(n,cnflush); dev_decl(n,cnhalt);

#define	cons_init(n) { \
	dev_init(n,cnprobe), dev_init(n,cninit), dev_init(n,cngetc), \
	dev_init(n,cnputc), dev_init(n,cnpollc) }

#define	cons_init_bell(n) { \
	dev_init(n,cnprobe), dev_init(n,cninit), dev_init(n,cngetc), \
	dev_init(n,cnputc), dev_init(n,cnpollc), dev_init(n,cnbell) }

#define	cons_init_halt(n) { \
	dev_init(n,cnprobe), dev_init(n,cninit), dev_init(n,cngetc), \
	dev_init(n,cnputc), dev_init(n,cnpollc), 0,	             \
	dev_init(n,cnhalt) }

#endif

#endif /* _SYS_DEV_CONS_H_ */