1 /* $NetBSD: cons.h,v 1.18 2000/05/08 16:30:58 itojun Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah $Hdr: cons.h 1.6 92/01/21$ 41 * 42 * @(#)cons.h 8.1 (Berkeley) 6/10/93 43 */ 44 45 #ifndef _SYS_DEV_CONS_H_ 46 #define _SYS_DEV_CONS_H_ 47 48 struct consdev { 49 void (*cn_probe) /* probe hardware and fill in consdev info */ 50 __P((struct consdev *)); 51 void (*cn_init) /* turn on as console */ 52 __P((struct consdev *)); 53 int (*cn_getc) /* kernel getchar interface */ 54 __P((dev_t)); 55 void (*cn_putc) /* kernel putchar interface */ 56 __P((dev_t, int)); 57 void (*cn_pollc) /* turn on and off polling */ 58 __P((dev_t, int)); 59 void (*cn_bell) /* ring bell */ 60 __P((dev_t, u_int, u_int, u_int)); 61 dev_t cn_dev; /* major/minor of device */ 62 int cn_pri; /* pecking order; the higher the better */ 63 }; 64 65 /* values for cn_pri - reflect our policy for console selection */ 66 #define CN_DEAD 0 /* device doesn't exist */ 67 #define CN_NORMAL 1 /* device exists but is nothing special */ 68 #define CN_INTERNAL 2 /* "internal" bit-mapped display */ 69 #define CN_REMOTE 3 /* serial interface with remote bit set */ 70 71 /* XXX */ 72 #define CONSMAJOR 0 73 74 #ifdef _KERNEL 75 76 extern struct consdev constab[]; 77 extern struct consdev *cn_tab; 78 79 void cninit __P((void)); 80 int cnopen __P((dev_t, int, int, struct proc *)); 81 int cnclose __P((dev_t, int, int, struct proc *)); 82 int cnread __P((dev_t, struct uio *, int)); 83 int cnwrite __P((dev_t, struct uio *, int)); 84 int cnioctl __P((dev_t, u_long, caddr_t, int, struct proc *)); 85 int cnpoll __P((dev_t, int, struct proc *)); 86 int cngetc __P((void)); 87 int cngetsn __P((char *, int)); 88 void cnputc __P((int)); 89 void cnpollc __P((int)); 90 void cnbell __P((u_int, u_int, u_int)); 91 void cnrint __P((void)); 92 void nullcnpollc __P((dev_t, int)); 93 94 /* console-specific types */ 95 #define dev_type_cnprobe(n) void n __P((struct consdev *)) 96 #define dev_type_cninit(n) void n __P((struct consdev *)) 97 #define dev_type_cngetc(n) int n __P((dev_t)) 98 #define dev_type_cnputc(n) void n __P((dev_t, int)) 99 #define dev_type_cnpollc(n) void n __P((dev_t, int)) 100 #define dev_type_cnbell(n) void n __P((dev_t, u_int, u_int, u_int)); 101 102 #define cons_decl(n) \ 103 dev_decl(n,cnprobe); dev_decl(n,cninit); dev_decl(n,cngetc); \ 104 dev_decl(n,cnputc); dev_decl(n,cnpollc); dev_decl(n,cnbell); 105 106 #define cons_init(n) { \ 107 dev_init(1,n,cnprobe), dev_init(1,n,cninit), dev_init(1,n,cngetc), \ 108 dev_init(1,n,cnputc), dev_init(1,n,cnpollc) } 109 110 #define cons_init_bell(n) { \ 111 dev_init(1,n,cnprobe), dev_init(1,n,cninit), dev_init(1,n,cngetc), \ 112 dev_init(1,n,cnputc), dev_init(1,n,cnpollc), dev_init(1,n,cnbell) } 113 114 #endif 115 116 #endif /* _SYS_DEV_CONS_H_ */ 117