This is the 3rd stage of syscons code reorganization.

- Split terminal emulation code from the main part of the driver so
that we can have alternative terminal emulator modules if we like in
the future.  (We are not quite there yet, though.)

- Put sysmouse related code in a separate file, thus, simplifying the
main part of the driver.

As some files are added to the source tree, you need to run config(8)
before you compile a new kernel next time.

You shouldn't see any functional change by this commit; this is only
internal code reorganization.

1 files changed, 344 insertions, 0 deletions

diff --git a/sys/dev/syscons/sysmouse.c b/sys/dev/syscons/sysmouse.c
new file mode 100644
index 0000000..8c28ab7
--- /dev/null
+++ b/sys/dev/syscons/sysmouse.c
@@ -0,0 +1,344 @@
+/*-
+ * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
+ * 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 as
+ *    the first lines of this file unmodified.
+ * 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 AUTHORS ``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 AUTHORS 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.
+ *
+ * $FreeBSD$
+ */
+
+#include "sc.h"
+#include "opt_syscons.h"
+
+#if NSC > 0
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/conf.h>
+#include <sys/proc.h>
+#include <sys/tty.h>
+#include <sys/kernel.h>
+
+#include <machine/console.h>
+#include <machine/mouse.h>
+
+#include <dev/syscons/syscons.h>
+
+#ifndef SC_NO_SYSMOUSE
+
+#define	CDEV_MAJOR	12		/* major number, shared with syscons */
+#define SC_MOUSE 	128		/* minor number */
+
+static d_open_t		smopen;
+static d_close_t	smclose;
+static d_ioctl_t	smioctl;
+
+static struct cdevsw sm_cdevsw = {
+	/* open */	smopen,
+	/* close */	smclose,
+	/* read */	ttyread,
+	/* write */	nowrite,
+	/* ioctl */	smioctl,
+	/* poll */	ttypoll,
+	/* mmap */	nommap,
+	/* strategy */	nostrategy,
+	/* name */	"sysmouse",
+	/* maj */	CDEV_MAJOR,
+	/* dump */	nodump,
+	/* psize */	nopsize,
+	/* flags */	D_TTY,
+	/* bmaj */	-1
+};
+
+/* local variables */
+static struct tty	*sysmouse_tty;
+static int		mouse_level;	/* sysmouse protocol level */
+static mousestatus_t	mouse_status;
+
+static void		smstart(struct tty *tp);
+static int		smparam(struct tty *tp, struct termios *t);
+
+static int
+smopen(dev_t dev, int flag, int mode, struct proc *p)
+{
+	struct tty *tp;
+
+	DPRINTF(5, ("smopen: dev:%d,%d, vty:%d\n",
+		major(dev), minor(dev), SC_VTY(dev)));
+
+#if 0
+	if (SC_VTY(dev) != SC_MOUSE)
+		return ENXIO;
+#endif
+
+	tp = dev->si_tty = ttymalloc(dev->si_tty);
+	if (!(tp->t_state & TS_ISOPEN)) {
+		tp->t_oproc = smstart;
+		tp->t_param = smparam;
+		tp->t_stop = nottystop;
+		tp->t_dev = dev;
+		ttychars(tp);
+		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 = TTYDEF_SPEED;
+		smparam(tp, &tp->t_termios);
+		(*linesw[tp->t_line].l_modem)(tp, 1);
+	} else if (tp->t_state & TS_XCLUDE && suser(p)) {
+		return EBUSY;
+	}
+
+	return (*linesw[tp->t_line].l_open)(dev, tp);
+}
+
+static int
+smclose(dev_t dev, int flag, int mode, struct proc *p)
+{
+	struct tty *tp;
+	int s;
+
+	tp = dev->si_tty;
+	s = spltty();
+	mouse_level = 0;
+	(*linesw[tp->t_line].l_close)(tp, flag);
+	ttyclose(tp);
+	splx(s);
+
+	return 0;
+}
+
+static void
+smstart(struct tty *tp)
+{
+	struct clist *rbp;
+	u_char buf[PCBURST];
+	int s;
+
+	s = spltty();
+	if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) {
+		tp->t_state |= TS_BUSY;
+		rbp = &tp->t_outq;
+		while (rbp->c_cc)
+			q_to_b(rbp, buf, PCBURST);
+		tp->t_state &= ~TS_BUSY;
+		ttwwakeup(tp);
+	}
+	splx(s);
+}
+
+static int
+smparam(struct tty *tp, struct termios *t)
+{
+	tp->t_ispeed = t->c_ispeed;
+	tp->t_ospeed = t->c_ospeed;
+	tp->t_cflag = t->c_cflag;
+	return 0;
+}
+
+static int
+smioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
+{
+	struct tty *tp;
+	mousehw_t *hw;
+	mousemode_t *mode;
+	int error;
+	int s;
+
+	tp = dev->si_tty;
+	switch (cmd) {
+
+	case MOUSE_GETHWINFO:	/* get device information */
+		hw = (mousehw_t *)data;
+		hw->buttons = 10;		/* XXX unknown */
+		hw->iftype = MOUSE_IF_SYSMOUSE;
+		hw->type = MOUSE_MOUSE;
+		hw->model = MOUSE_MODEL_GENERIC;
+		hw->hwid = 0;
+		return 0;
+
+	case MOUSE_GETMODE:	/* get protocol/mode */
+		mode = (mousemode_t *)data;
+		mode->level = mouse_level;
+		switch (mode->level) {
+		case 0: /* emulate MouseSystems protocol */
+			mode->protocol = MOUSE_PROTO_MSC;
+			mode->rate = -1;		/* unknown */
+			mode->resolution = -1;	/* unknown */
+			mode->accelfactor = 0;	/* disabled */
+			mode->packetsize = MOUSE_MSC_PACKETSIZE;
+			mode->syncmask[0] = MOUSE_MSC_SYNCMASK;
+			mode->syncmask[1] = MOUSE_MSC_SYNC;
+			break;
+
+		case 1: /* sysmouse protocol */
+			mode->protocol = MOUSE_PROTO_SYSMOUSE;
+			mode->rate = -1;
+			mode->resolution = -1;
+			mode->accelfactor = 0;
+			mode->packetsize = MOUSE_SYS_PACKETSIZE;
+			mode->syncmask[0] = MOUSE_SYS_SYNCMASK;
+			mode->syncmask[1] = MOUSE_SYS_SYNC;
+			break;
+		}
+		return 0;
+
+	case MOUSE_SETMODE:	/* set protocol/mode */
+		mode = (mousemode_t *)data;
+		if ((mode->level < 0) || (mode->level > 1))
+			return EINVAL;
+		mouse_level = mode->level;
+		return 0;
+
+	case MOUSE_GETLEVEL:	/* get operation level */
+		*(int *)data = mouse_level;
+		return 0;
+
+	case MOUSE_SETLEVEL:	/* set operation level */
+		if ((*(int *)data  < 0) || (*(int *)data > 1))
+			return EINVAL;
+		mouse_level = *(int *)data;
+		return 0;
+
+	case MOUSE_GETSTATUS:	/* get accumulated mouse events */
+		s = spltty();
+		*(mousestatus_t *)data = mouse_status;
+		mouse_status.flags = 0;
+		mouse_status.obutton = mouse_status.button;
+		mouse_status.dx = 0;
+		mouse_status.dy = 0;
+		mouse_status.dz = 0;
+		splx(s);
+		return 0;
+
+#if notyet
+	case MOUSE_GETVARS:	/* get internal mouse variables */
+	case MOUSE_SETVARS:	/* set internal mouse variables */
+		return ENODEV;
+#endif
+
+	case MOUSE_READSTATE:	/* read status from the device */
+	case MOUSE_READDATA:	/* read data from the device */
+		return ENODEV;
+	}
+
+	error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);
+	if (error != ENOIOCTL)
+		return error;
+	error = ttioctl(tp, cmd, data, flag);
+	if (error != ENOIOCTL)
+		return error;
+	return ENOTTY;
+}
+
+static void
+sm_attach_mouse(void *unused)
+{
+	dev_t dev;
+
+	dev = make_dev(&sm_cdevsw, SC_MOUSE, UID_ROOT, GID_WHEEL, 0600,
+		       "sysmouse");
+	dev->si_tty = sysmouse_tty = ttymalloc(sysmouse_tty);
+	/* sysmouse doesn't have scr_stat */
+}
+
+SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR,
+	sm_attach_mouse, NULL)
+
+int
+sysmouse_event(mouse_info_t *info)
+{
+	/* MOUSE_BUTTON?DOWN -> MOUSE_MSC_BUTTON?UP */
+	static int butmap[8] = {
+	    MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP,
+	    MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP,
+	    MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP,
+	    MOUSE_MSC_BUTTON3UP,
+	    MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP,
+	    MOUSE_MSC_BUTTON2UP,
+	    MOUSE_MSC_BUTTON1UP,
+	    0,
+	};
+	u_char buf[8];
+	int x, y, z;
+	int i;
+
+	switch (info->operation) {
+	case MOUSE_ACTION:
+        	mouse_status.button = info->u.data.buttons;
+		/* FALL THROUGH */
+	case MOUSE_MOTION_EVENT:
+		x = info->u.data.x;
+		y = info->u.data.y;
+		z = info->u.data.z;
+		break;
+	case MOUSE_BUTTON_EVENT:
+		x = y = z = 0;
+		if (info->u.event.value > 0)
+			mouse_status.button |= info->u.event.id;
+		else
+			mouse_status.button &= ~info->u.event.id;
+		break;
+	default:
+		return 0;
+	}
+
+	mouse_status.dx += x;
+	mouse_status.dy += y;
+	mouse_status.dz += z;
+	mouse_status.flags |= ((x || y || z) ? MOUSE_POSCHANGED : 0)
+			      | (mouse_status.obutton ^ mouse_status.button);
+	if (mouse_status.flags == 0)
+		return 0;
+
+	if ((sysmouse_tty == NULL) || !(sysmouse_tty->t_state & TS_ISOPEN))
+		return mouse_status.flags;
+
+	/* the first five bytes are compatible with MouseSystems' */
+	buf[0] = MOUSE_MSC_SYNC
+		 | butmap[mouse_status.button & MOUSE_STDBUTTONS];
+	x = imax(imin(x, 255), -256);
+	buf[1] = x >> 1;
+	buf[3] = x - buf[1];
+	y = -imax(imin(y, 255), -256);
+	buf[2] = y >> 1;
+	buf[4] = y - buf[2];
+	for (i = 0; i < MOUSE_MSC_PACKETSIZE; ++i)
+		(*linesw[sysmouse_tty->t_line].l_rint)(buf[i], sysmouse_tty);
+	if (mouse_level >= 1) {
+		/* extended part */
+        	z = imax(imin(z, 127), -128);
+        	buf[5] = (z >> 1) & 0x7f;
+        	buf[6] = (z - (z >> 1)) & 0x7f;
+        	/* buttons 4-10 */
+        	buf[7] = (~mouse_status.button >> 3) & 0x7f;
+        	for (i = MOUSE_MSC_PACKETSIZE; i < MOUSE_SYS_PACKETSIZE; ++i)
+			(*linesw[sysmouse_tty->t_line].l_rint)(buf[i],
+							       sysmouse_tty);
+	}
+
+	return mouse_status.flags;
+}
+
+#endif /* !SC_NO_SYSMOUSE */
+
+#endif /* NSC */