/* $NetBSD: biconsdev.c,v 1.1.1.1 1999/09/16 12:23:19 takemura Exp $ */ /*- * Copyright (c) 1999 * Shin Takemura and PocketBSD Project. 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the PocketBSD project * and its contributors. * 4. Neither the name of the project 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. * */ /* * Copyright (c) 1995 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Ted Lemon. * * 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. * */ #include "biconsdev.h" #if NBICONSDEV > 0 #include #include #include #include #include #include #include #include #include #include struct tty biconsdev_tty[NBICONSDEV]; void biconsdevattach __P((int n)); static void biconsdev_output __P((struct tty *)); cdev_decl(biconsdev); void biconsdevattach (n) int n; { register struct tty *tp = &biconsdev_tty [0]; /* Set up the tty queues now... */ clalloc(&tp->t_rawq, 1024, 1); clalloc(&tp->t_canq, 1024, 1); /* output queue doesn't need quoting */ clalloc(&tp->t_outq, 1024, 0); tp->t_dev = makedev(34, 0); tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; tp->t_param = (int (*)(struct tty *, struct termios *))nullop; tp->t_winsize.ws_row = bicons_height; tp->t_winsize.ws_col = bicons_width; tp->t_winsize.ws_xpixel = bicons_xpixel; tp->t_winsize.ws_ypixel = bicons_ypixel; tp->t_oproc = biconsdev_output; /* * XXX, We must check the bootinfo. */ if (cn_tab->cn_dev == makedev(0, 0)) { cn_tab->cn_dev = tp->t_dev; } #ifdef DEBUG printf("%s(%d): biconsdevattach(): cn_tab->cn_dev=%x %x\n", __FILE__, __LINE__, (u_int)&cn_tab->cn_dev, tp->t_dev); #endif } static void biconsdev_output(tp) register struct tty *tp; { register int s, n; char buf[OBUFSIZ]; s = spltty(); if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { splx(s); return; } tp->t_state |= TS_BUSY; splx(s); n = q_to_b(&tp->t_outq, buf, sizeof(buf)); bicons_putn(buf, n); s = spltty(); tp->t_state &= ~TS_BUSY; /* Come back if there's more to do */ if (tp->t_outq.c_cc) { tp->t_state |= TS_TIMEOUT; timeout(ttrstrt, tp, 1); } if (tp->t_outq.c_cc <= tp->t_lowat) { if (tp->t_state&TS_ASLEEP) { tp->t_state &= ~TS_ASLEEP; wakeup((caddr_t)&tp->t_outq); } selwakeup(&tp->t_wsel); } splx(s); } int biconsdevopen(dev, flag, mode, p) dev_t dev; int flag, mode; struct proc *p; { register struct tty *tp = &biconsdev_tty [0]; int status; if ((tp->t_state & TS_ISOPEN) == 0) { /* * Leave baud rate alone! */ ttychars(tp); tp->t_iflag = TTYDEF_IFLAG; tp->t_oflag = TTYDEF_OFLAG; tp->t_lflag = TTYDEF_LFLAG; tp->t_cflag = TTYDEF_CFLAG; tp->t_state = TS_ISOPEN | TS_CARR_ON; (void)(*tp->t_param)(tp, &tp->t_termios); ttsetwater(tp); } else if (tp->t_state & TS_XCLUDE && p->p_ucred->cr_uid != 0) return (EBUSY); status = (*linesw[tp->t_line].l_open)(dev, tp); return status; } int biconsdevclose(dev, flag, mode, p) dev_t dev; int flag, mode; struct proc *p; { register struct tty *tp = &biconsdev_tty [0]; (*linesw[tp->t_line].l_close)(tp, flag); ttyclose(tp); return (0); } int biconsdevread(dev, uio, flag) dev_t dev; struct uio *uio; int flag; { register struct tty *tp = &biconsdev_tty [0]; return ((*linesw[tp->t_line].l_read)(tp, uio, flag)); } int biconsdevwrite(dev, uio, flag) dev_t dev; struct uio *uio; int flag; { register struct tty *tp = &biconsdev_tty [0]; return ((*linesw[tp->t_line].l_write)(tp, uio, flag)); } struct tty * biconsdevtty(dev) dev_t dev; { register struct tty *tp = &biconsdev_tty [0]; return (tp); } int biconsdevioctl(dev, cmd, data, flag, p) dev_t dev; u_long cmd; caddr_t data; int flag; struct proc *p; { register struct tty *tp = &biconsdev_tty [0]; int error; if ((error = linesw[tp->t_line].l_ioctl(tp, cmd, data, flag, p)) >= 0) return (error); if ((error = ttioctl(tp, cmd, data, flag, p)) >= 0) return (error); return (ENOTTY); } void biconsdevstop(tp, rw) struct tty *tp; int rw; { } #endif /* NBICONSDEV > 0 */