freebsd-dev/sys/dev/syscons/sysmouse.c
Robert Watson 237fdd787b In keeping with style(9)'s recommendations on macros, use a ';'
after each SYSINIT() macro invocation.  This makes a number of
lightweight C parsers much happier with the FreeBSD kernel
source, including cflow's prcc and lxr.

MFC after:	1 month
Discussed with:	imp, rink
2008-03-16 10:58:09 +00:00

325 lines
8.0 KiB
C

/*-
* 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_syscons.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/priv.h>
#include <sys/tty.h>
#include <sys/kernel.h>
#include <sys/consio.h>
#include <sys/mouse.h>
#include <dev/syscons/syscons.h>
#ifndef SC_NO_SYSMOUSE
#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 = {
.d_version = D_VERSION,
.d_open = smopen,
.d_close = smclose,
.d_ioctl = smioctl,
.d_name = "sysmouse",
.d_flags = D_TTY | D_NEEDGIANT,
};
/* 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(struct cdev *dev, int flag, int mode, struct thread *td)
{
struct tty *tp;
DPRINTF(5, ("smopen: dev:%s, vty:%d\n",
devtoname(dev), SC_VTY(dev)));
#if 0
if (SC_VTY(dev) != SC_MOUSE)
return ENXIO;
#endif
tp = dev->si_tty;
if (!(tp->t_state & TS_ISOPEN)) {
ttyinitmode(tp, 0, 0);
smparam(tp, &tp->t_termios);
ttyld_modem(tp, 1);
} else if (tp->t_state & TS_XCLUDE &&
priv_check(td, PRIV_TTY_EXCLUSIVE)) {
return EBUSY;
}
return ttyld_open(tp, dev);
}
static int
smclose(struct cdev *dev, int flag, int mode, struct thread *td)
{
struct tty *tp;
int s;
tp = dev->si_tty;
s = spltty();
mouse_level = 0;
ttyld_close(tp, flag);
tty_close(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(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
{
struct tty *tp;
mousehw_t *hw;
mousemode_t *mode;
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 == -1)
; /* don't change the current setting */
else if ((mode->level < 0) || (mode->level > 1))
return EINVAL;
else
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;
#ifdef 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;
}
return(ttyioctl(dev, cmd, data, flag, td));
}
static void
sm_attach_mouse(void *unused)
{
struct cdev *dev;
struct tty *tp;
dev = make_dev(&sm_cdevsw, SC_MOUSE, UID_ROOT, GID_WHEEL, 0600,
"sysmouse");
dev->si_tty = tp = ttyalloc();
tp->t_oproc = smstart;
tp->t_param = smparam;
tp->t_stop = nottystop;
tp->t_dev = dev;
sysmouse_tty = tp;
/* sysmouse doesn't have scr_stat */
}
SYSINIT(sysmouse, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, 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)
ttyld_rint(sysmouse_tty, buf[i]);
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)
ttyld_rint(sysmouse_tty, buf[i]);
}
return mouse_status.flags;
}
#endif /* !SC_NO_SYSMOUSE */