1/* $NetBSD: cons.c,v 1.11 2009/03/18 10:22:27 cegger 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. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: Utah Hdr: cons.c 1.7 92/02/28 37 * 38 * @(#)cons.c 8.1 (Berkeley) 6/10/93 39 */ 40 41#include <lib/libsa/stand.h> 42#include <sys/param.h> 43#include "boot.h" 44#include "cons.h" 45 46#ifdef CONS_BE 47void becnprobe(struct consdev *); 48void becninit(struct consdev *); 49void becnputchar(void *, register int); 50int becngetchar(void *); 51int becnscan(void *); 52#endif 53 54#ifdef CONS_VGA 55void vgacnprobe(struct consdev *); 56void vgacninit(struct consdev *); 57void vgacnputchar(void *, register int); 58int vgacngetchar(void *); 59int vgacnscan(void *); 60#endif 61 62#ifdef CONS_SERIAL 63void siocnprobe(struct consdev *); 64void siocninit(struct consdev *); 65void siocnputchar(void *, register int); 66int siocngetchar(void *); 67int siocnscan(void *); 68# include "ns16550.h" 69# ifndef COMPORT 70# define COMPORT COM1 71# endif 72# ifndef COMSPEED 73# define COMSPEED 9600 74# endif 75#endif 76 77struct consdev constab[] = { 78#ifdef CONS_BE 79 { "be", 0xd0000000, 0, 80 becnprobe, becninit, becngetchar, becnputchar, becnscan }, 81#endif 82#ifdef CONS_VGA 83 { "vga", 0xc0000000, 0, 84 vgacnprobe, vgacninit, vgacngetchar, vgacnputchar, vgacnscan }, 85#endif 86#ifdef CONS_SERIAL 87 { "com", COMPORT, COMSPEED, 88 siocnprobe, siocninit, siocngetchar, siocnputchar, siocnscan }, 89#endif 90 { 0 } 91}; 92 93struct consdev *cn_tab; 94 95char * 96cninit(int *addr, int *speed) 97{ 98 register struct consdev *cp; 99 100 cn_tab = NULL; 101 for (cp = constab; cp->cn_probe; cp++) { 102 (*cp->cn_probe)(cp); 103 if (cp->cn_pri > CN_DEAD && 104 (cn_tab == NULL || cp->cn_pri > cn_tab->cn_pri)) 105 cn_tab = cp; 106 } 107 if (cn_tab) { 108 (*cn_tab->cn_init)(cn_tab); 109 *addr = cn_tab->address; 110 *speed = cn_tab->speed; 111 return (cn_tab->cn_name); 112 } 113 114 return (NULL); 115} 116 117int 118cngetc(void) 119{ 120 121 if (cn_tab) 122 return ((*cn_tab->cn_getc)(cn_tab->cn_dev)); 123 return (0); 124} 125 126void 127cnputc(int c) 128{ 129 130 if (cn_tab) 131 (*cn_tab->cn_putc)(cn_tab->cn_dev, c); 132} 133 134int 135cnscan(void) 136{ 137 138 if (cn_tab) 139 return ((*cn_tab->cn_scan)(cn_tab->cn_dev)); 140 return -1; 141} 142 143#ifdef CONS_BE 144/* 145 * BeBox default console 146 */ 147void 148becnprobe(struct consdev *cp) 149{ 150 151 cp->cn_pri = CN_INTERNAL; 152} 153 154void 155becninit(struct consdev *cp) 156{ 157 158 video_init((u_char *)cp->address); 159 kbdreset(); 160 kbd(1); /* read out ugly data */ 161} 162 163int 164becngetchar(void *dev) 165{ 166 167 return (kbd_getc()); 168} 169 170void 171becnputchar(void *dev, register int c) 172{ 173 174 video_putc(c); 175} 176 177int 178becnscan(void *dev) 179{ 180 181 return (kbd(1)); 182} 183#endif /* CONS_BE */ 184 185#ifdef CONS_VGA 186/* 187 * VGA console 188 */ 189void 190vgacnprobe(struct consdev *cp) 191{ 192 193 cp->cn_pri = CN_NORMAL; 194} 195 196void 197vgacninit(struct consdev *cp) 198{ 199 200 vga_reset((u_char *)cp->address); 201 vga_init((u_char *)cp->address); 202 kbdreset(); 203} 204 205int 206vgacngetchar(void *dev) 207{ 208 209 return (kbd_getc()); 210} 211 212void 213vgacnputchar(void *dev, register int c) 214{ 215 216 vga_putc(c); 217} 218 219int 220vgacnscan(void *dev) 221{ 222 223 return (kbd(1)); 224} 225#endif /* CONS_VGA */ 226 227#ifdef CONS_SERIAL 228/* 229 * serial console 230 */ 231void 232siocnprobe(struct consdev *cp) 233{ 234 235 cp->cn_pri = CN_REMOTE; 236} 237 238void 239siocninit(struct consdev *cp) 240{ 241 242 cp->cn_dev = (void *)NS16550_init(cp->address, cp->speed); 243} 244 245int 246siocngetchar(void *dev) 247{ 248 249 return (NS16550_getc((struct NS16550 *)dev)); 250} 251 252void 253siocnputchar(void *dev, register int c) 254{ 255 256 if (c == '\n') 257 NS16550_putc((struct NS16550 *)dev, '\r'); 258 NS16550_putc((struct NS16550 *)dev, c); 259} 260 261int 262siocnscan(void *dev) 263{ 264 265 return (NS16550_scankbd((struct NS16550 *)dev)); 266} 267#endif /* CONS_SERIAL */ 268