cons.c revision 1.1
1 /* $NetBSD: cons.c,v 1.1 2003/06/25 17:24:22 cdi 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.c 1.7 92/02/28 41 * 42 * @(#)cons.c 8.1 (Berkeley) 6/10/93 43 */ 44 45 #include <lib/libsa/stand.h> 46 47 #include "boot.h" 48 #include "cons.h" 49 50 #ifdef CONS_SERIAL 51 void siocnprobe __P((struct consdev *)); 52 void siocninit __P((struct consdev *)); 53 void siocnputchar __P((void *, int)); 54 int siocngetchar __P((void *)); 55 int siocnscan __P((void *)); 56 # include "ns16550.h" 57 # ifndef COMPORT 58 # define COMPORT COM1 59 # endif 60 # ifndef COMSPEED 61 # define COMSPEED 9600 62 # endif 63 #endif 64 65 struct consdev constab[] = { 66 #ifdef CONS_SERIAL 67 { "com", COMPORT, COMSPEED, 68 siocnprobe, siocninit, siocngetchar, siocnputchar, siocnscan }, 69 #endif 70 { 0 } 71 }; 72 73 struct consdev *cn_tab; 74 75 char * 76 cninit(addr, speed) 77 int *addr; 78 int *speed; 79 { 80 register struct consdev *cp; 81 82 cn_tab = NULL; 83 for (cp = constab; cp->cn_probe; cp++) { 84 (*cp->cn_probe)(cp); 85 if (cp->cn_pri > CN_DEAD && 86 (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri)) 87 cn_tab = cp; 88 } 89 if (cn_tab) { 90 (*cn_tab->cn_init)(cn_tab); 91 *addr = cn_tab->address; 92 *speed = cn_tab->speed; 93 return (cn_tab->cn_name); 94 } 95 96 return (NULL); 97 } 98 99 int 100 cngetc() 101 { 102 103 if (cn_tab) 104 return ((*cn_tab->cn_getc)(cn_tab->cn_dev)); 105 return (0); 106 } 107 108 void 109 cnputc(c) 110 int c; 111 { 112 113 if (cn_tab) 114 (*cn_tab->cn_putc)(cn_tab->cn_dev, c); 115 } 116 117 int 118 cnscan() 119 { 120 121 if (cn_tab) 122 return ((*cn_tab->cn_scan)(cn_tab->cn_dev)); 123 return (0); 124 } 125 126 #ifdef CONS_FB 127 /* 128 * frame buffer console 129 */ 130 void 131 fbcnprobe(cp) 132 struct consdev *cp; 133 { 134 135 cp->cn_pri = CN_INTERNAL; 136 } 137 138 void 139 fbcninit(cp) 140 struct consdev *cp; 141 { 142 143 video_init((u_char *)cp->address); 144 kbdreset(); 145 } 146 147 int 148 fbcngetchar(dev) 149 void *dev; 150 { 151 152 return (kbd_getc()); 153 } 154 155 void 156 fbcnputchar(dev, c) 157 void *dev; 158 register int c; 159 { 160 161 video_putc(c); 162 } 163 164 int 165 fbcnscan(dev) 166 void *dev; 167 { 168 169 return (kbd(1)); 170 } 171 #endif /* CONS_FB */ 172 173 #ifdef CONS_VGA 174 /* 175 * VGA console 176 */ 177 void 178 vgacnprobe(cp) 179 struct consdev *cp; 180 { 181 cp->cn_pri = CN_NORMAL; 182 } 183 184 void 185 vgacninit(cp) 186 struct consdev *cp; 187 { 188 189 vga_reset((u_char *)cp->address); 190 vga_init((u_char *)cp->address); 191 kbdreset(); 192 } 193 194 int 195 vgacngetchar(dev) 196 void *dev; 197 { 198 199 return (kbd_getc()); 200 } 201 202 void 203 vgacnputchar(dev, c) 204 void *dev; 205 register int c; 206 { 207 208 vga_putc(c); 209 } 210 211 int 212 vgacnscan(dev) 213 void *dev; 214 { 215 216 return (kbd(1)); 217 } 218 #endif /* CONS_VGA */ 219 220 #ifdef CONS_SERIAL 221 /* 222 * serial console 223 */ 224 void 225 siocnprobe(cp) 226 struct consdev *cp; 227 { 228 if (*((unsigned long *)COMPROBE) != 0) 229 cp->cn_pri = CN_REMOTE; 230 } 231 232 void 233 siocninit(cp) 234 struct consdev *cp; 235 { 236 237 cp->cn_dev = (void *)NS16550_init(cp->address, cp->speed); 238 } 239 240 int 241 siocngetchar(dev) 242 void *dev; 243 { 244 245 return (NS16550_getc((struct NS16550 *)dev)); 246 } 247 248 void 249 siocnputchar(dev, c) 250 void *dev; 251 register int c; 252 { 253 254 if (c == '\n') 255 NS16550_putc((struct NS16550 *)dev, '\r'); 256 NS16550_putc((struct NS16550 *)dev, c); 257 } 258 259 int 260 siocnscan(dev) 261 void *dev; 262 { 263 264 return (NS16550_scankbd((struct NS16550 *)dev)); 265 } 266 #endif /* CONS_SERIAL */ 267
Indexes created Thu Oct 02 14:10:14 GMT 2025