cons.c revision 1.4
1 /* $NetBSD: cons.c,v 1.4 2006/04/10 17:58:59 garbled 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.c 1.7 92/02/28 36 * 37 * @(#)cons.c 8.1 (Berkeley) 6/10/93 38 */ 39 /* 40 * Copyright (c) 1988 University of Utah. 41 * 42 * This code is derived from software contributed to Berkeley by 43 * the Systems Programming Group of the University of Utah Computer 44 * Science Department. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by the University of 57 * California, Berkeley and its contributors. 58 * 4. Neither the name of the University nor the names of its contributors 59 * may be used to endorse or promote products derived from this software 60 * without specific prior written permission. 61 * 62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 * SUCH DAMAGE. 73 * 74 * from: Utah Hdr: cons.c 1.7 92/02/28 75 * 76 * @(#)cons.c 8.1 (Berkeley) 6/10/93 77 */ 78 79 #include <lib/libsa/stand.h> 80 81 #include "boot.h" 82 #include "cons.h" 83 84 #ifdef CONS_VGA 85 void vgacnprobe __P((struct consdev *)); 86 void vgacninit __P((struct consdev *)); 87 void vgacnputchar __P((void *, int)); 88 int vgacngetchar __P((void *)); 89 int vgacnscan __P((void *)); 90 #endif 91 92 #ifdef CONS_SERIAL 93 void siocnprobe __P((struct consdev *)); 94 void siocninit __P((struct consdev *)); 95 void siocnputchar __P((void *, int)); 96 int siocngetchar __P((void *)); 97 int siocnscan __P((void *)); 98 # include "ns16550.h" 99 # ifndef COMPORT 100 # define COMPORT COM1 101 # endif 102 # ifndef COMSPEED 103 # define COMSPEED 9600 104 # endif 105 #endif 106 107 struct consdev constab[] = { 108 #ifdef CONS_VGA 109 { "vga", 0xc0000000, 0, 110 vgacnprobe, vgacninit, vgacngetchar, vgacnputchar, vgacnscan }, 111 #endif 112 #ifdef CONS_SERIAL 113 { "com", COMPORT, COMSPEED, 114 siocnprobe, siocninit, siocngetchar, siocnputchar, siocnscan }, 115 #endif 116 { 0 } 117 }; 118 119 struct consdev *cn_tab; 120 121 char * 122 cninit(addr, speed) 123 int *addr; 124 int *speed; 125 { 126 register struct consdev *cp; 127 128 cn_tab = NULL; 129 for (cp = constab; cp->cn_probe; cp++) { 130 (*cp->cn_probe)(cp); 131 if (cp->cn_pri > CN_DEAD && 132 (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri)) 133 cn_tab = cp; 134 } 135 if (cn_tab) { 136 (*cn_tab->cn_init)(cn_tab); 137 *addr = cn_tab->address; 138 *speed = cn_tab->speed; 139 return (cn_tab->cn_name); 140 } 141 142 return (NULL); 143 } 144 145 int 146 cngetc() 147 { 148 149 if (cn_tab) 150 return ((*cn_tab->cn_getc)(cn_tab->cn_dev)); 151 return (0); 152 } 153 154 void 155 cnputc(c) 156 int c; 157 { 158 159 if (cn_tab) 160 (*cn_tab->cn_putc)(cn_tab->cn_dev, c); 161 } 162 163 int 164 cnscan() 165 { 166 167 if (cn_tab) 168 return ((*cn_tab->cn_scan)(cn_tab->cn_dev)); 169 return (0); 170 } 171 172 #ifdef CONS_VGA 173 /* 174 * VGA console 175 */ 176 void 177 vgacnprobe(cp) 178 struct consdev *cp; 179 { 180 cp->cn_pri = CN_NORMAL; 181 } 182 183 void 184 vgacninit(cp) 185 struct consdev *cp; 186 { 187 188 vga_reset((u_char *)cp->address); 189 vga_init((u_char *)cp->address); 190 kbdreset(); 191 } 192 193 int 194 vgacngetchar(dev) 195 void *dev; 196 { 197 198 return (kbd_getc()); 199 } 200 201 void 202 vgacnputchar(dev, c) 203 void *dev; 204 register int c; 205 { 206 207 vga_putc(c); 208 } 209 210 int 211 vgacnscan(dev) 212 void *dev; 213 { 214 215 return (kbd(1)); 216 } 217 #endif /* CONS_VGA */ 218 219 #ifdef CONS_SERIAL 220 /* 221 * serial console 222 */ 223 void 224 siocnprobe(cp) 225 struct consdev *cp; 226 { 227 228 cp->cn_pri = CN_REMOTE; 229 } 230 231 void 232 siocninit(cp) 233 struct consdev *cp; 234 { 235 236 cp->cn_dev = (void *)NS16550_init(cp->address, cp->speed); 237 } 238 239 int 240 siocngetchar(dev) 241 void *dev; 242 { 243 244 return (NS16550_getc((struct NS16550 *)dev)); 245 } 246 247 void 248 siocnputchar(dev, c) 249 void *dev; 250 register int c; 251 { 252 253 if (c == '\n') 254 NS16550_putc((struct NS16550 *)dev, '\r'); 255 NS16550_putc((struct NS16550 *)dev, c); 256 } 257 258 int 259 siocnscan(dev) 260 void *dev; 261 { 262 263 return (NS16550_scankbd((struct NS16550 *)dev)); 264 } 265 #endif /* CONS_SERIAL */ 266
Indexes created Sat Oct 18 21:09:54 GMT 2025