cons.c revision 1.9
1 /* $NetBSD: cons.c,v 1.9 2008/05/26 16:28:39 kiyohara 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 #include <sys/param.h> 81 #include "boot.h" 82 #include "cons.h" 83 84 #ifdef CONS_BE 85 void becnprobe(struct consdev *); 86 void becninit(struct consdev *); 87 void becnputchar(void *, register int); 88 int becngetchar(void *); 89 int becnscan(void *); 90 #endif 91 92 #ifdef CONS_VGA 93 void vgacnprobe(struct consdev *); 94 void vgacninit(struct consdev *); 95 void vgacnputchar(void *, register int); 96 int vgacngetchar(void *); 97 int vgacnscan(void *); 98 #endif 99 100 #ifdef CONS_SERIAL 101 void siocnprobe(struct consdev *); 102 void siocninit(struct consdev *); 103 void siocnputchar(void *, register int); 104 int siocngetchar(void *); 105 int siocnscan(void *); 106 # include "ns16550.h" 107 # ifndef COMPORT 108 # define COMPORT COM1 109 # endif 110 # ifndef COMSPEED 111 # define COMSPEED 9600 112 # endif 113 #endif 114 115 struct consdev constab[] = { 116 #ifdef CONS_BE 117 { "be", 0xd0000000, 0, 118 becnprobe, becninit, becngetchar, becnputchar, becnscan }, 119 #endif 120 #ifdef CONS_VGA 121 { "vga", 0xc0000000, 0, 122 vgacnprobe, vgacninit, vgacngetchar, vgacnputchar, vgacnscan }, 123 #endif 124 #ifdef CONS_SERIAL 125 { "com", COMPORT, COMSPEED, 126 siocnprobe, siocninit, siocngetchar, siocnputchar, siocnscan }, 127 #endif 128 { 0 } 129 }; 130 131 struct consdev *cn_tab; 132 133 char * 134 cninit(int *addr, int *speed) 135 { 136 register struct consdev *cp; 137 138 cn_tab = NULL; 139 for (cp = constab; cp->cn_probe; cp++) { 140 (*cp->cn_probe)(cp); 141 if (cp->cn_pri > CN_DEAD && 142 (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri)) 143 cn_tab = cp; 144 } 145 if (cn_tab) { 146 (*cn_tab->cn_init)(cn_tab); 147 *addr = cn_tab->address; 148 *speed = cn_tab->speed; 149 return (cn_tab->cn_name); 150 } 151 152 return (NULL); 153 } 154 155 int 156 cngetc() 157 { 158 159 if (cn_tab) 160 return ((*cn_tab->cn_getc)(cn_tab->cn_dev)); 161 return (0); 162 } 163 164 void 165 cnputc(int c) 166 { 167 168 if (cn_tab) 169 (*cn_tab->cn_putc)(cn_tab->cn_dev, c); 170 } 171 172 int 173 cnscan() 174 { 175 176 if (cn_tab) 177 return ((*cn_tab->cn_scan)(cn_tab->cn_dev)); 178 return -1; 179 } 180 181 #ifdef CONS_BE 182 /* 183 * BeBox default console 184 */ 185 void 186 becnprobe(struct consdev *cp) 187 { 188 189 cp->cn_pri = CN_INTERNAL; 190 } 191 192 void 193 becninit(struct consdev *cp) 194 { 195 196 video_init((u_char *)cp->address); 197 kbdreset(); 198 } 199 200 int 201 becngetchar(void *dev) 202 { 203 204 return (kbd_getc()); 205 } 206 207 void 208 becnputchar(void *dev, register int c) 209 { 210 211 video_putc(c); 212 } 213 214 int 215 becnscan(void *dev) 216 { 217 218 return (kbd(1)); 219 } 220 #endif /* CONS_BE */ 221 222 #ifdef CONS_VGA 223 /* 224 * VGA console 225 */ 226 void 227 vgacnprobe(struct consdev *cp) 228 { 229 230 cp->cn_pri = CN_NORMAL; 231 } 232 233 void 234 vgacninit(struct consdev *cp) 235 { 236 237 vga_reset((u_char *)cp->address); 238 vga_init((u_char *)cp->address); 239 kbdreset(); 240 } 241 242 int 243 vgacngetchar(void *dev) 244 { 245 246 return (kbd_getc()); 247 } 248 249 void 250 vgacnputchar(void *dev, register int c) 251 { 252 253 vga_putc(c); 254 } 255 256 int 257 vgacnscan(void *dev) 258 { 259 260 return (kbd(1)); 261 } 262 #endif /* CONS_VGA */ 263 264 #ifdef CONS_SERIAL 265 /* 266 * serial console 267 */ 268 void 269 siocnprobe(struct consdev *cp) 270 { 271 272 cp->cn_pri = CN_REMOTE; 273 } 274 275 void 276 siocninit(struct consdev *cp) 277 { 278 279 cp->cn_dev = (void *)NS16550_init(cp->address, cp->speed); 280 } 281 282 int 283 siocngetchar(void *dev) 284 { 285 286 return (NS16550_getc((struct NS16550 *)dev)); 287 } 288 289 void 290 siocnputchar(void *dev, register int c) 291 { 292 293 if (c == '\n') 294 NS16550_putc((struct NS16550 *)dev, '\r'); 295 NS16550_putc((struct NS16550 *)dev, c); 296 } 297 298 int 299 siocnscan(void *dev) 300 { 301 302 return (NS16550_scankbd((struct NS16550 *)dev)); 303 } 304 #endif /* CONS_SERIAL */ 305
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