1 /* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * Copyright (c) 1987 NeXT, Inc. 30 */ 31 32 #include <sys/_types/_dev_t.h> /* dev_t */ 33 34 struct consdev { 35 char *cn_name; /* name of device in dev_name_list */ 36 int (*cn_probe)(void); /* probe and fill in consdev info */ 37 int (*cn_init)(void); /* turn on as console */ 38 int (*cn_getc)(void); /* kernel getchar interface */ 39 int (*cn_putc)(void); /* kernel putchar interface */ 40 struct tty *cn_tp; /* tty structure for console device */ 41 dev_t cn_dev; /* major/minor of device */ 42 short cn_pri; /* pecking order; the higher the better */ 43 }; 44 45 /* values for cn_pri - reflect our policy for console selection */ 46 #define CN_DEAD 0 /* device doesn't exist */ 47 #define CN_NORMAL 1 /* device exists but is nothing special */ 48 #define CN_INTERNAL 2 /* "internal" bit-mapped display */ 49 #define CN_REMOTE 3 /* serial interface with remote bit set */ 50 51 /* XXX */ 52 #define CONSMAJOR 0 53 54 #ifdef KERNEL 55 56 #include <sys/types.h> 57 #include <sys/conf.h> 58 59 extern struct consdev constab[]; 60 extern struct consdev *cn_tab; 61 extern struct tty *cn_tty; 62 63 /* Returns tty with +1 retain count, use ttyfree() to release. */ 64 extern struct tty *copy_constty(void); /* current console device */ 65 extern struct tty *set_constty(struct tty *); 66 67 int consopen(dev_t, int, int, struct proc *); 68 int consclose(dev_t, int, int, struct proc *); 69 int consread(dev_t, struct uio *, int); 70 int conswrite(dev_t, struct uio *, int); 71 int consioctl(dev_t, u_long, caddr_t, int, struct proc *); 72 int consselect(dev_t, int, void *, struct proc *); 73 74 /* 75 * These really want their own header file, but this is the only one in 76 * common, and the km device is the keyboard monitor, so it's technically a 77 * part of the console. 78 */ 79 int kmopen(dev_t, int, int, struct proc *); 80 int kmclose(dev_t, int, int, struct proc *); 81 int kmread(dev_t, struct uio *, int); 82 int kmwrite(dev_t, struct uio *, int); 83 int kmioctl(dev_t, u_long, caddr_t, int, struct proc *); 84 int kmputc(dev_t, char); 85 86 #endif 87