mvme68k port by me. some parts by dale rahn.

1 files changed, 496 insertions, 0 deletions

diff --git a/sys/arch/mvme68k/dev/bugtty.c b/sys/arch/mvme68k/dev/bugtty.c
new file mode 100644
index 00000000000..367db8f804b
--- /dev/null
+++ b/sys/arch/mvme68k/dev/bugtty.c
@@ -0,0 +1,496 @@
+/*	$NetBSD$ */
+
+/*
+ * Copyright (c) 1995 Dale Rahn.
+ * 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 Dale Rahn.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * 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 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 <sys/param.h>
+#include <sys/systm.h>
+#include <sys/ioctl.h>
+#include <sys/device.h>
+#include <sys/tty.h>
+#include <sys/proc.h>
+#include <sys/conf.h>
+#include <sys/uio.h>
+#include <sys/queue.h>
+#include <dev/cons.h>
+
+#include <machine/autoconf.h>
+#include <machine/cpu.h>
+#include <machine/prom.h>
+
+#include "bugtty.h"
+
+int bugttymatch __P((struct device *parent, void *self, void *aux));
+void bugttyattach __P((struct device *parent, struct device *self, void *aux));
+
+struct cfdriver bugttycd = {
+	NULL, "bugtty", bugttymatch, bugttyattach,
+	DV_TTY, sizeof(struct device)
+};
+
+/* prototypes */
+int bugttycnprobe __P((struct consdev *cp));
+int bugttycninit __P((struct consdev *cp));
+int bugttycngetc __P((dev_t dev));
+int bugttycnputc __P((dev_t dev, char c));
+
+int bugttyopen __P((dev_t dev, int flag, int mode, struct proc *p));
+int bugttyclose __P((dev_t dev, int flag, int mode, struct proc *p));
+int bugttyread __P((dev_t dev, struct uio *uio, int flag));
+int bugttywrite __P((dev_t dev, struct uio *uio, int flag));
+int bugttyioctl __P((dev_t dev, int cmd, caddr_t data, int flag, struct proc *p));
+int bugttystop __P((struct tty *tp, int flag));
+
+#define DIALOUT(x) ((x) & 0x80)
+#define SWFLAGS(dev) (bugttyswflags | (DIALOUT(dev) ? TIOCFLAG_SOFTCAR : 0))
+#define BUGTTYUNIT(x) ((x) & 0x7f)
+
+#define BUGBUF 80
+char bugtty_ibuffer[BUGBUF+1];
+volatile char *pinchar = bugtty_ibuffer;
+char bug_obuffer[BUGBUF+1];
+
+struct tty *bugtty_tty[NBUGTTY];
+
+struct tty *
+bugttytty(dev)
+	dev_t dev;
+{
+	int unit;
+
+	unit = BUGTTYUNIT(dev);
+	if (unit >= NBUGTTY)
+		return (NULL);
+	return (bugtty_tty[unit]);
+}
+
+int
+bugttymatch(parent, self, aux)
+	struct device *parent;
+	void *self;
+	void *aux;
+{
+	extern int needprom;
+	
+	if (needprom == 0)
+		return (0);
+	return (1);
+}
+
+void
+bugttyattach(parent, self, aux)
+	struct device *parent;
+	struct device *self;
+	void *aux;
+{
+	printf("\n");
+}
+
+void bugttyoutput __P((struct tty *tp));
+
+int bugttydefaultrate = TTYDEF_SPEED;
+int bugttyswflags;
+
+int
+bugttymctl(dev, bits, how)
+	dev_t dev;
+	int bits, how;
+{
+	static int settings = TIOCM_DTR | TIOCM_RTS |
+	    TIOCM_CTS | TIOCM_CD | TIOCM_DSR;
+	int s;
+
+	/*printf("mctl: dev %x, bits %x, how %x,",dev, bits, how);*/
+
+	/* settings are currently ignored */
+	s = spltty();
+	switch (how) {
+	case DMSET:
+		break;
+	case DMBIC:
+		break;
+	case DMBIS:
+		break;
+	case DMGET:
+		break;
+	}
+	(void)splx(s);
+
+	bits = 0;
+	/* proper defaults? */
+	bits |= TIOCM_DTR;
+	bits |= TIOCM_RTS;
+	bits |= TIOCM_CTS;
+	bits |= TIOCM_CD;
+	/* bits |= TIOCM_RI; */
+	bits |= TIOCM_DSR;
+
+	/* printf("retbits %x\n", bits); */
+	return (bits);
+}
+
+int
+bugttyopen(dev, flag, mode, p)
+	dev_t dev;
+	int flag, mode;
+	struct proc *p;
+{
+	int s, unit = BUGTTYUNIT(dev);
+	struct tty *tp;
+	extern int needprom;
+
+	if (needprom == 0)
+		return (ENODEV);
+
+	s = spltty();
+	if (bugtty_tty[unit]) {
+		tp = bugtty_tty[unit];
+	} else {
+		tp = bugtty_tty[unit] = ttymalloc();
+	}
+	tp->t_oproc = bugttyoutput;
+	tp->t_param = NULL;
+	tp->t_dev = dev;
+
+	if ((tp->t_state & TS_ISOPEN) == 0) {
+		tp->t_state |= TS_WOPEN;
+		ttychars(tp);
+		if (tp->t_ispeed == 0) {
+			/*
+			 * only when cleared do we reset to defaults.
+			 */
+			tp->t_iflag = TTYDEF_IFLAG;
+			tp->t_oflag = TTYDEF_OFLAG;
+			tp->t_cflag = TTYDEF_CFLAG;
+			tp->t_lflag = TTYDEF_LFLAG;
+			tp->t_ispeed = tp->t_ospeed = bugttydefaultrate;
+		}
+		/* bugtty does not have carrier */
+		tp->t_cflag |= CLOCAL;
+		/*
+		 * do these all the time
+		 */
+		if (bugttyswflags & TIOCFLAG_CLOCAL)
+			tp->t_cflag |= CLOCAL;
+		if (bugttyswflags & TIOCFLAG_CRTSCTS)
+			tp->t_cflag |= CRTSCTS;
+		if (bugttyswflags & TIOCFLAG_MDMBUF)
+			tp->t_cflag |= MDMBUF;
+		bugttyparam(tp, &tp->t_termios);
+		ttsetwater(tp);
+
+		(void)bugttymctl(dev, TIOCM_DTR | TIOCM_RTS, DMSET);
+		/*
+		if ((SWFLAGS(dev) & TIOCFLAG_SOFTCAR) ||
+		    (bugttymctl(dev, 0, DMGET) & TIOCM_CD))
+			tp->t_state |= TS_CARR_ON;
+		else
+			tp->t_state &= ~TS_CARR_ON;
+		*/
+		tp->t_state |= TS_CARR_ON;
+	} else if (tp->t_state & TS_XCLUDE && p->p_ucred->cr_uid != 0) {
+		splx(s);
+		return (EBUSY);
+	}
+
+	/*
+	 * if NONBLOCK requested, ignore carrier
+	 */
+/*
+	if (flag & O_NONBLOCK)
+		goto done;
+*/
+
+	splx(s);
+	/*
+	 * Reset the tty pointer, as there could have been a dialout
+	 * use of the tty with a dialin open waiting.
+	 */
+	tp->t_dev = dev;
+	return ((*linesw[tp->t_line].l_open)(dev, tp));
+}
+
+int
+bugttyparam()
+{
+	return (0);
+}
+
+void
+bugttyoutput(tp)
+	struct tty *tp;
+{
+	int cc, s, unit, cnt ;
+
+	/* only supports one unit */
+
+	if ((tp->t_state & TS_ISOPEN) == 0)
+		return;
+
+	s = spltty();
+	cc = tp->t_outq.c_cc;
+	while (cc > 0) {
+		cnt = min(BUGBUF, cc);
+		cnt = q_to_b(&tp->t_outq, bug_obuffer, cnt);
+		bug_outstr(bug_obuffer, &bug_obuffer[cnt]);
+		cc -= cnt;
+	}
+	splx(s);
+}
+
+int
+bugttyclose(dev, flag, mode, p)
+	dev_t dev;
+	int flag, mode;
+	struct proc *p;
+{
+	int unit = BUGTTYUNIT(dev);
+	struct tty *tp = bugtty_tty[unit];
+
+	(*linesw[tp->t_line].l_close)(tp, flag);
+
+	ttyclose(tp);
+#if 0
+	bugtty_tty[unit] = NULL;
+#endif
+	return (0);
+}
+
+int
+bugttyread(dev, uio, flag)
+	dev_t dev;
+	struct uio *uio;
+	int flag;
+{
+	struct tty *tp;
+
+	if ((tp = bugtty_tty[BUGTTYUNIT(dev)]) == NULL)
+		return (ENXIO); 
+	return ((*linesw[tp->t_line].l_read)(tp, uio, flag));
+}
+
+#if 1
+/* only to be called at splclk() */
+bugtty_chkinput()
+{
+	struct tty *tp;
+
+	tp = bugtty_tty[0]; /* Kinda ugly hack */
+	if (tp == NULL )
+		return;
+
+	if (bug_instat()) {
+		while (bug_instat()) {
+			u_char c = bug_inchr() & 0xff;
+			(*linesw[tp->t_line].l_rint)(c, tp);
+		}
+		/*
+		wakeup(tp);
+		*/
+	}
+}
+#endif
+
+int
+bugttywrite(dev, uio, flag)
+	dev_t dev;
+	struct uio *uio;
+	int flag;
+{
+#if 0
+	/* bypass tty output routines. */
+	int i, cnt, s;
+	int oldoff;
+
+	s = spltty();
+	oldoff = uio->uio_offset;
+	do  {
+		uiomove(bug_obuffer, BUGBUF, uio);
+		bug_outstr(bug_obuffer, &bug_obuffer[uio->uio_offset - oldoff]);
+		oldoff = uio->uio_offset;
+	} while (uio->uio_resid != 0);
+	splx(s);
+
+	return (0);
+#else
+	struct tty *tp;
+	if((tp = bugtty_tty[BUGTTYUNIT(dev)]) == NULL)
+		return (ENXIO);
+	return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
+#endif
+}
+
+int
+bugttyioctl(dev, cmd, data, flag, p)
+	dev_t dev;
+	int cmd;
+	caddr_t data;
+	int flag;
+	struct proc *p;
+{
+	int unit = BUGTTYUNIT(dev);
+	struct tty *tp = bugtty_tty[unit];
+	int error;
+
+	if (!tp)
+		return (ENXIO);
+
+	error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);
+	if (error >= 0) 
+		return (error);
+
+	error = ttioctl(tp, cmd, data, flag, p);
+	if (error >= 0)
+		return (error);
+
+	switch (cmd) {
+	case TIOCSBRK:
+		/* */
+		break;
+
+	case TIOCCBRK:
+		/* */
+		break;
+
+	case TIOCSDTR:
+		(void) bugttymctl(dev, TIOCM_DTR | TIOCM_RTS, DMBIS);
+		break;
+
+	case TIOCCDTR:
+		(void) bugttymctl(dev, TIOCM_DTR | TIOCM_RTS, DMBIC);
+		break;
+
+	case TIOCMSET:
+		(void) bugttymctl(dev, *(int *) data, DMSET);
+		break;
+
+	case TIOCMBIS:
+		(void) bugttymctl(dev, *(int *) data, DMBIS);
+		break;
+
+	case TIOCMBIC:
+		(void) bugttymctl(dev, *(int *) data, DMBIC);
+		break;
+
+	case TIOCMGET:
+		*(int *)data = bugttymctl(dev, 0, DMGET);
+		break;
+	case TIOCGFLAGS:
+		*(int *)data = SWFLAGS(dev);
+		break;
+	case TIOCSFLAGS:
+		error = suser(p->p_ucred, &p->p_acflag); 
+		if (error != 0)
+			return (EPERM); 
+
+		bugttyswflags = *(int *)data;
+		bugttyswflags &= /* only allow valid flags */
+		    (TIOCFLAG_SOFTCAR | TIOCFLAG_CLOCAL | TIOCFLAG_CRTSCTS);
+		break;
+	default:
+		return (ENOTTY);
+	}
+
+	return (0);
+}
+
+int
+bugttystop(tp, flag)
+	struct tty *tp;
+	int flag;
+{
+	int s;
+
+	s = spltty();
+	if (tp->t_state & TS_BUSY) {
+		if ((tp->t_state & TS_TTSTOP) == 0)
+			tp->t_state |= TS_FLUSH;
+	}
+	splx(s);
+	return (0);
+}
+
+/*
+ * bugtty is the last possible choice for a console device.
+ */
+int
+bugttycnprobe(cp)
+	struct consdev *cp;
+{
+	int maj;
+	extern int needprom;
+
+	if (needprom == 0) {
+		cp->cn_pri = CN_DEAD;
+		return (0);
+	}
+		
+	switch (cputyp) {
+	case CPU_147:
+	case CPU_162:
+		cp->cn_pri = CN_NORMAL;
+		return (0);
+	default:
+		break;
+	}
+
+	/* locate the major number */
+	for (maj = 0; maj < nchrdev; maj++)
+		if (cdevsw[maj].d_open == bugttyopen)
+			break;
+
+	cp->cn_dev = makedev(maj, 0);
+	cp->cn_pri = CN_NORMAL;
+
+	return (1);
+}
+
+int
+bugttycninit(cp)
+	struct consdev *cp;
+{
+}
+
+int
+bugttycngetc(dev)
+	dev_t dev;
+{
+	return (bug_inchr());
+}
+
+int
+bugttycnputc(dev, c)
+	dev_t dev;
+	char c;
+{
+	if (c == '\n')
+		bug_outchr('\r');
+	bug_outchr(c);
+}