/* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Kazumasa Utashiro of Software Research Associates, Inc. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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 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. * * @(#)cons.c 8.1 (Berkeley) 6/11/93 */ #include <sys/param.h> #include <sys/proc.h> #include <sys/systm.h> #include <sys/buf.h> #include <sys/ioctl.h> #include <sys/tty.h> #include <sys/file.h> #include <sys/conf.h> #include "bm.h" dev_t consdev = (dev_t)NULL; /* initialized by consinit() */ struct tty *constty = 0; vcopen(dev, flag, mode, p) dev_t dev; int flag, mode; struct proc *p; { if ((dev = consdev) == NULL) return 0; return ((*cdevsw[major(dev)].d_open)(dev, flag, mode, p)); } vcclose(dev, flag, mode, p) dev_t dev; int flag, mode; struct proc *p; { if ((dev = consdev) == NULL) return 0; return ((*cdevsw[major(dev)].d_close)(dev, flag, mode, p)); } vcread(dev, uio, flag) dev_t dev; struct uio *uio; { if ((dev = consdev) == NULL) return 0; return ((*cdevsw[major(dev)].d_read)(dev, uio, flag)); } vcwrite(dev, uio, flag) dev_t dev; struct uio *uio; int flag; { if ((dev = consdev) == NULL) return 0; return ((*cdevsw[major(dev)].d_write)(dev, uio, flag)); } vcstop(tp, flag) struct tty *tp; int flag; { dev_t dev; if ((dev = consdev) == NULL) return 0; return ((*cdevsw[major(dev)].d_stop)(tp, flag)); } vcioctl(dev, cmd, data, flag, p) dev_t dev; caddr_t data; struct proc *p; { if ((dev = consdev) == NULL) return 0; return ((*cdevsw[major(dev)].d_ioctl)(dev, cmd, data, flag, p)); } /*ARGSUSED*/ vcselect(dev, rw, p) dev_t dev; int rw; struct proc *p; { if ((dev = consdev) == NULL) return 1; return (ttselect(dev, rw, p)); } /* * Get character from console. */ cngetc() { /* notyet */ return(0); } #define SCC_CONSOLE 0 /* * Print a character on console. */ cnputc(c) int c; { int s; int (*putc)(), scccons_putc(), bmcons_putc(); if (consdev == NULL) return 0; #if NBM > 0 if (consdev == makedev(1, 0)) putc = scccons_putc; else putc = bmcons_putc; #else putc = scccons_putc; #endif /* KU: should be much more efficient */ s = splhigh(); putc(c); if (c == '\n') putc('\r'); splx(s); } scccons_putc(c) int c; { char cnbuf[1]; cnbuf[0] = (char)c; scc_error_write(SCC_CONSOLE, cnbuf, 1); } #if NBM > 0 bmcons_putc(c) int c; { char cnbuf[1]; cnbuf[0] = (char)c; vt100_write(0, cnbuf, 1); } #endif