cons.h revision 1.26
1 /* $NetBSD: cons.h,v 1.26 2007/01/13 18:39:35 cube 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 $Hdr: cons.h 1.6 92/01/21$ 36 * 37 * @(#)cons.h 8.1 (Berkeley) 6/10/93 38 */ 39 40 /* 41 * Copyright (c) 1988 University of Utah. 42 * 43 * This code is derived from software contributed to Berkeley by 44 * the Systems Programming Group of the University of Utah Computer 45 * Science Department. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. All advertising materials mentioning features or use of this software 56 * must display the following acknowledgement: 57 * This product includes software developed by the University of 58 * California, Berkeley and its contributors. 59 * 4. Neither the name of the University nor the names of its contributors 60 * may be used to endorse or promote products derived from this software 61 * without specific prior written permission. 62 * 63 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 64 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 65 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 66 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 67 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 68 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 69 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 70 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 71 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 72 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 73 * SUCH DAMAGE. 74 * 75 * from: Utah $Hdr: cons.h 1.6 92/01/21$ 76 * 77 * @(#)cons.h 8.1 (Berkeley) 6/10/93 78 */ 79 80 #ifndef _SYS_DEV_CONS_H_ 81 #define _SYS_DEV_CONS_H_ 82 83 struct consdev { 84 void (*cn_probe) /* probe hardware and fill in consdev info */ 85 (struct consdev *); 86 void (*cn_init) /* turn on as console */ 87 (struct consdev *); 88 int (*cn_getc) /* kernel getchar interface */ 89 (dev_t); 90 void (*cn_putc) /* kernel putchar interface */ 91 (dev_t, int); 92 void (*cn_pollc) /* turn on and off polling */ 93 (dev_t, int); 94 void (*cn_bell) /* ring bell */ 95 (dev_t, u_int, u_int, u_int); 96 void (*cn_halt) /* stop device */ 97 (dev_t); 98 void (*cn_flush) /* flush output */ 99 (dev_t); 100 dev_t cn_dev; /* major/minor of device */ 101 int cn_pri; /* pecking order; the higher the better */ 102 }; 103 104 /* values for cn_pri - reflect our policy for console selection */ 105 #define CN_DEAD 0 /* device doesn't exist */ 106 #define CN_NULL 1 /* noop console */ 107 #define CN_NORMAL 2 /* device exists but is nothing special */ 108 #define CN_INTERNAL 3 /* "internal" bit-mapped display */ 109 #define CN_REMOTE 4 /* serial interface with remote bit set */ 110 111 #ifdef _KERNEL 112 113 extern struct consdev constab[]; 114 extern struct consdev *cn_tab; 115 116 void cninit(void); 117 int cngetc(void); 118 int cngetsn(char *, int); 119 void cnputc(int); 120 void cnpollc(int); 121 void cnbell(u_int, u_int, u_int); 122 void cnflush(void); 123 void cnhalt(void); 124 void cnrint(void); 125 void nullcnprobe(struct consdev *); 126 void nullcninit(struct consdev *); 127 void nullcnpollc(dev_t, int); 128 void nullconsattach(int); 129 130 /* console-specific types */ 131 #define dev_type_cnprobe(n) void n(struct consdev *) 132 #define dev_type_cninit(n) void n(struct consdev *) 133 #define dev_type_cngetc(n) int n(dev_t) 134 #define dev_type_cnputc(n) void n(dev_t, int) 135 #define dev_type_cnpollc(n) void n(dev_t, int) 136 #define dev_type_cnbell(n) void n(dev_t, u_int, u_int, u_int) 137 #define dev_type_cnhalt(n) void n(dev_t) 138 #define dev_type_cnflush(n) void n(dev_t) 139 140 #define dev_decl(n,t) __CONCAT(dev_type_,t)(__CONCAT(n,t)) 141 #define dev_init(n,t) __CONCAT(n,t) 142 143 #define cons_decl(n) \ 144 dev_decl(n,cnprobe); dev_decl(n,cninit); dev_decl(n,cngetc); \ 145 dev_decl(n,cnputc); dev_decl(n,cnpollc); dev_decl(n,cnbell); \ 146 dev_decl(n,cnflush); dev_decl(n,cnhalt); 147 148 #define cons_init(n) { \ 149 dev_init(n,cnprobe), dev_init(n,cninit), dev_init(n,cngetc), \ 150 dev_init(n,cnputc), dev_init(n,cnpollc), NULL, NULL, NULL, \ 151 0, 0 } 152 153 #define cons_init_bell(n) { \ 154 dev_init(n,cnprobe), dev_init(n,cninit), dev_init(n,cngetc), \ 155 dev_init(n,cnputc), dev_init(n,cnpollc), dev_init(n,cnbell) } 156 157 #define cons_init_halt(n) { \ 158 dev_init(n,cnprobe), dev_init(n,cninit), dev_init(n,cngetc), \ 159 dev_init(n,cnputc), dev_init(n,cnpollc), 0, \ 160 dev_init(n,cnhalt) } 161 162 #endif 163 164 #endif /* _SYS_DEV_CONS_H_ */ 165
Indexes created Thu Sep 25 08:09:54 GMT 2025