1 /* $OpenBSD: cons.h,v 1.8 2001/04/17 04:30:49 aaron Exp $ */ 2 /* $NetBSD: cons.h,v 1.14 1996/03/14 19:08:35 christos Exp $ */ 3 4 /* 5 * Copyright (c) 1988 University of Utah. 6 * Copyright (c) 1990, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * the Systems Programming Group of the University of Utah Computer 11 * Science Department. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * from: Utah $Hdr: cons.h 1.6 92/01/21$ 42 * 43 * @(#)cons.h 8.1 (Berkeley) 6/10/93 44 */ 45 46 struct consdev { 47 void (*cn_probe) /* probe hardware and fill in consdev info */ 48 __P((struct consdev *)); 49 void (*cn_init) /* turn on as console */ 50 __P((struct consdev *)); 51 int (*cn_getc) /* kernel getchar interface */ 52 __P((dev_t)); 53 void (*cn_putc) /* kernel putchar interface */ 54 __P((dev_t, int)); 55 void (*cn_pollc) /* turn on and off polling */ 56 __P((dev_t, int)); 57 void (*cn_bell) /* ring bell */ 58 __P((dev_t, u_int, u_int, u_int)); 59 dev_t cn_dev; /* major/minor of device */ 60 int cn_pri; /* pecking order; the higher the better */ 61 }; 62 63 /* values for cn_pri - reflect our policy for console selection */ 64 #define CN_DEAD 0 /* device doesn't exist */ 65 #define CN_NORMAL 1 /* device exists but is nothing special */ 66 #define CN_INTERNAL 2 /* "internal" bit-mapped display */ 67 #define CN_REMOTE 3 /* serial interface with remote bit set */ 68 69 /* XXX */ 70 #define CONSMAJOR 0 71 72 #ifdef _KERNEL 73 74 extern struct consdev constab[]; 75 extern struct consdev *cn_tab; 76 77 struct knote; 78 79 void cninit __P((void)); 80 int cnset __P((dev_t)); 81 int cnopen __P((dev_t, int, int, struct proc *)); 82 int cnclose __P((dev_t, int, int, struct proc *)); 83 int cnread __P((dev_t, struct uio *, int)); 84 int cnwrite __P((dev_t, struct uio *, int)); 85 int cnioctl __P((dev_t, u_long, caddr_t, int, struct proc *)); 86 int cnselect __P((dev_t, int, struct proc *)); 87 int cnkqfilter __P((dev_t, struct knote *)); 88 int cngetc __P((void)); 89 void cnputc __P((int)); 90 void cnpollc __P((int)); 91 void cnbell __P((u_int, u_int, u_int)); 92 void cnrint __P((void)); 93 void nullcnpollc __P((dev_t, int)); 94 95 /* console-specific types */ 96 #define dev_type_cnprobe(n) void n __P((struct consdev *)) 97 #define dev_type_cninit(n) void n __P((struct consdev *)) 98 #define dev_type_cngetc(n) int n __P((dev_t)) 99 #define dev_type_cnputc(n) void n __P((dev_t, int)) 100 #define dev_type_cnpollc(n) void n __P((dev_t, int)) 101 #define dev_type_cnbell(n) void n __P((dev_t, u_int, u_int, u_int)) 102 103 #define cons_decl(n) \ 104 dev_decl(n,cnprobe); dev_decl(n,cninit); dev_decl(n,cngetc); \ 105 dev_decl(n,cnputc); dev_decl(n,cnpollc); dev_decl(n,cnbell); 106 107 #define cons_init(n) { \ 108 dev_init(1,n,cnprobe), dev_init(1,n,cninit), dev_init(1,n,cngetc), \ 109 dev_init(1,n,cnputc), dev_init(1,n,cnpollc) } 110 111 #define cons_init_bell(n) { \ 112 dev_init(1,n,cnprobe), dev_init(1,n,cninit), dev_init(1,n,cngetc), \ 113 dev_init(1,n,cnputc), dev_init(1,n,cnpollc), dev_init(1,n,cnbell) } 114 115 #endif 116