1 /* $NetBSD: cons.c,v 1.7 2008/03/01 05:21:50 tsutsui 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(struct consdev *); 86 void vgacninit(struct consdev *); 87 void vgacnputchar(void *, int); 88 int vgacngetchar(void *); 89 int vgacnscan(void *); 90 #endif 91 92 #ifdef CONS_SERIAL 93 void siocnprobe(struct consdev *); 94 void siocninit(struct consdev *); 95 void siocnputchar(void *, int); 96 int siocngetchar(void *); 97 int siocnscan(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(int *addr, int *speed) 123 { 124 register struct consdev *cp; 125 126 cn_tab = NULL; 127 for (cp = constab; cp->cn_probe; cp++) { 128 (*cp->cn_probe)(cp); 129 if (cp->cn_pri > CN_DEAD && 130 (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri)) 131 cn_tab = cp; 132 } 133 if (cn_tab) { 134 (*cn_tab->cn_init)(cn_tab); 135 *addr = cn_tab->address; 136 *speed = cn_tab->speed; 137 return (cn_tab->cn_name); 138 } 139 140 return (NULL); 141 } 142 143 int 144 cngetc(void) 145 { 146 147 if (cn_tab) 148 return ((*cn_tab->cn_getc)(cn_tab->cn_dev)); 149 return (0); 150 } 151 152 void 153 cnputc(int c) 154 { 155 156 if (cn_tab) 157 (*cn_tab->cn_putc)(cn_tab->cn_dev, c); 158 } 159 160 int 161 cnscan(void) 162 { 163 164 if (cn_tab) 165 return ((*cn_tab->cn_scan)(cn_tab->cn_dev)); 166 return -1; 167 } 168 169 #ifdef CONS_VGA 170 /* 171 * VGA console 172 */ 173 void 174 vgacnprobe(struct consdev *cp) 175 { 176 cp->cn_pri = CN_NORMAL; 177 } 178 179 void 180 vgacninit(struct consdev *cp) 181 { 182 183 vga_init((u_char *)cp->address); 184 kbdreset(); 185 } 186 187 int 188 vgacngetchar(void *dev) 189 { 190 191 return (kbd_getc()); 192 } 193 194 void 195 vgacnputchar(void *dev, register int c) 196 { 197 198 vga_putc(c); 199 } 200 201 int 202 vgacnscan(void *dev) 203 { 204 205 return (kbd(1)); 206 } 207 #endif /* CONS_VGA */ 208 209 #ifdef CONS_SERIAL 210 /* 211 * serial console 212 */ 213 void 214 siocnprobe(struct consdev *cp) 215 { 216 217 cp->cn_pri = CN_REMOTE; 218 } 219 220 void 221 siocninit(struct consdev *cp) 222 { 223 224 cp->cn_dev = (void *)NS16550_init(cp->address, cp->speed); 225 } 226 227 int 228 siocngetchar(void *dev) 229 { 230 231 return (NS16550_getc((struct NS16550 *)dev)); 232 } 233 234 void 235 siocnputchar(void *dev, register int c) 236 { 237 238 if (c == '\n') 239 NS16550_putc((struct NS16550 *)dev, '\r'); 240 NS16550_putc((struct NS16550 *)dev, c); 241 } 242 243 int 244 siocnscan(void *dev) 245 { 246 247 return (NS16550_scankbd((struct NS16550 *)dev)); 248 } 249 #endif /* CONS_SERIAL */ 250