/* $OpenBSD: dev_i386.c,v 1.27 2003/08/11 06:23:09 deraadt Exp $ */ /* * Copyright (c) 1996-1999 Michael Shalayeff * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #include "libsa.h" #include "biosdev.h" #include #include extern int debug; /* XXX use slot for 'rd' for 'hd' pseudo-device */ const char bdevs[][4] = { "wd", "", "fd", "wt", "sd", "st", "cd", "mcd", "", "", "", "", "", "", "", "scd", "", "hd", "" }; const int nbdevs = NENTS(bdevs); const char cdevs[][4] = { "cn", "", "", "", "", "", "", "", "com", "", "", "", "pc" }; const int ncdevs = NENTS(cdevs); /* pass dev_t to the open routines */ int devopen(struct open_file *f, const char *fname, char **file) { struct devsw *dp = devsw; register int i, rc = 1; *file = (char *)fname; #ifdef DEBUG if (debug) printf("devopen:"); #endif for (i = 0; i < ndevs && rc != 0; dp++, i++) { #ifdef DEBUG if (debug) printf(" %s: ", dp->dv_name); #endif if ((rc = (*dp->dv_open)(f, file)) == 0) { f->f_dev = dp; return 0; } #ifdef DEBUG else if (debug) printf("%d", rc); #endif } #ifdef DEBUG if (debug) putchar('\n'); #endif if ((f->f_flags & F_NODEV) == 0) f->f_dev = dp; return rc; } void devboot(dev_t bootdev, char *p) { #ifdef _TEST *p++ = '/'; *p++ = 'd'; *p++ = 'e'; *p++ = 'v'; *p++ = '/'; *p++ = 'r'; #endif if (bootdev & 0x80) *p++ = 'h'; else *p++ = 'f'; *p++ = 'd'; *p++ = '0' + (bootdev & 0x7f); *p++ = 'a'; *p = '\0'; } int pch_pos = 0; void putchar(int c) { switch(c) { case '\177': /* DEL erases */ cnputc('\b'); cnputc(' '); case '\b': cnputc('\b'); if (pch_pos) pch_pos--; break; case '\t': do cnputc(' '); while(++pch_pos % 8); break; case '\n': case '\r': cnputc(c); pch_pos=0; break; default: cnputc(c); pch_pos++; break; } } int getchar(void) { register int c = cngetc(); if (c == '\r') c = '\n'; if ((c < ' ' && c != '\n') || c == '\177') return(c); putchar(c); return(c); } char ttyname_buf[8]; char * ttyname(int fd) { snprintf(ttyname_buf, sizeof ttyname_buf, "%s%d", cdevs[major(cn_tab->cn_dev)], minor(cn_tab->cn_dev)); return (ttyname_buf); } dev_t ttydev(char *name) { int i, unit = -1; char *no = name + strlen(name) - 1; while (no >= name && *no >= '0' && *no <= '9') unit = (unit < 0 ? 0 : (unit * 10)) + *no-- - '0'; if (no < name || unit < 0) return (NODEV); for (i = 0; i < ncdevs; i++) if (strncmp(name, cdevs[i], no - name + 1) == 0) return (makedev(i, unit)); return (NODEV); } int cnspeed(dev_t dev, int sp) { if (major(dev) == 8) /* comN */ return comspeed(dev, sp); /* pc0 and anything else */ return 9600; }