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/* $XFree86$ */
/* Portions of this file were derived from the following files:
*
**********************************************************************
*
* Xserver/hw/kdrive/linux/ps2.c
*
* Copyright (c) 1999 by Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
*/
/*
* Copyright 2001 Red Hat Inc., Durham, North Carolina.
*
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation on the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/*
* Authors:
* Rickard E. (Rik) Faith <faith@redhat.com>
*
*/
#include "inputstr.h"
#include "Xos.h"
#include <errno.h>
#include <termios.h>
#include <unistd.h>
/*****************************************************************************/
/* Define some macros to make it easier to move this file to another
* part of the Xserver tree. All calls to the dmx* layer are #defined
* here for the .c file. The .h file will also have to be edited. */
#include "dmxinputinit.h"
#include "lnx-ps2.h"
#define GETPRIV myPrivate *priv \
= ((DMXLocalInputInfoPtr) \
((DMXInputInfo *) \
(pDev->devicePrivate))->mou)->private
#define LOG0(f) dmxLog(dmxDebug,f)
#define LOG1(f,a) dmxLog(dmxDebug,f,a)
#define LOG2(f,a,b) dmxLog(dmxDebug,f,a,b)
#define LOG3(f,a,b,c) dmxLog(dmxDebug,f,a,b,c)
#define FATAL0(f) dmxLog(dmxFatal,f)
#define FATAL1(f,a) dmxLog(dmxFatal,f,a)
#define FATAL2(f,a,b) dmxLog(dmxFatal,f,a,b)
#define ENQUEUEPROC dmxEnqueueProcPtr
#define MOTIONPROC dmxMotionProcPtr
/* End of interface definitions. */
/*****************************************************************************/
typedef struct _myPrivate {
DeviceIntPtr pMouse;
int fd;
enum {
button1 = 0x0001,
button2 = 0x0002,
button3 = 0x0004,
button4 = 0x0008,
button5 = 0x0010
} buttons;
} myPrivate;
static int ps2LinuxReadBytes(int fd, unsigned char *buf, int len, int min)
{
int n, tot;
fd_set set;
struct timeval tv;
tot = 0;
while (len) {
n = read(fd, buf, len);
if (n > 0) {
tot += n;
buf += n;
len -= n;
}
if (tot % min == 0) break;
FD_ZERO(&set);
FD_SET(fd, &set);
tv.tv_sec = 0;
tv.tv_usec = 100 * 1000;
n = select(fd + 1, &set, 0, 0, &tv);
if (n <= 0) break;
}
return tot;
}
static void ps2LinuxButton(myPrivate *priv, ENQUEUEPROC enqueue, xEvent *xE,
int buttons)
{
#define PRESS(b) \
do { \
xE->u.u.type = ButtonPress; \
xE->u.u.detail = priv->pMouse->button->map[b]; \
enqueue(xE); \
} while (0)
#define RELEASE(b) \
do { \
xE->u.u.type = ButtonRelease; \
xE->u.u.detail = priv->pMouse->button->map[b]; \
enqueue(xE); \
} while (0)
if ((buttons & button1) && !(priv->buttons & button1)) PRESS(1);
if (!(buttons & button1) && (priv->buttons & button1)) RELEASE(1);
if ((buttons & button2) && !(priv->buttons & button2)) PRESS(2);
if (!(buttons & button2) && (priv->buttons & button2)) RELEASE(2);
if ((buttons & button3) && !(priv->buttons & button3)) PRESS(3);
if (!(buttons & button3) && (priv->buttons & button3)) RELEASE(3);
if ((buttons & button4) && !(priv->buttons & button4)) PRESS(4);
if (!(buttons & button4) && (priv->buttons & button4)) RELEASE(4);
if ((buttons & button5) && !(priv->buttons & button5)) PRESS(5);
if (!(buttons & button5) && (priv->buttons & button5)) RELEASE(5);
priv->buttons = buttons;
}
void ps2LinuxRead(pointer p, ENQUEUEPROC enqueue, MOTIONPROC motion)
{
myPrivate *priv = p;
unsigned char buf[3 * 200];
unsigned char *b;
int n;
int dx, dy;
xEvent xE;
while ((n = ps2LinuxReadBytes(priv->fd, buf, sizeof(buf), 3)) > 0) {
b = buf;
while (n >= 3) {
dx = b[1] - ((b[0] & 0x10) ? 256 : 0);
dy = -b[2] + ((b[0] & 0x20) ? 256 : 0);
motion(-dx, -dy, 1);
ps2LinuxButton(priv, enqueue, &xE,
(((b[0] & 4) ? button2 : 0)
| ((b[0] & 2) ? button3 : 0)
| ((b[0] & 1) ? button1 : 0)));
n -= 3;
b += 3;
}
}
}
void ps2LinuxInit(DevicePtr pDev)
{
GETPRIV;
char *names[] = { "/dev/mouse", "/dev/psaux", NULL };
int i;
if (priv->fd >=0) return;
for (i = 0; names[i]; i++) {
if ((priv->fd = open(names[i], O_RDWR | O_NONBLOCK, 0)) >= 0) break;
}
if (priv->fd < 0)
FATAL1("ps2LinuxInit: Cannot open mouse port (%s)\n",
strerror(errno));
}
int ps2LinuxOn(DevicePtr pDev)
{
GETPRIV;
if (priv->fd < 0) ps2LinuxInit(pDev);
return priv->fd;
}
void ps2LinuxOff(DevicePtr pDev)
{
GETPRIV;
close(priv->fd);
priv->fd = -1;
}
void ps2LinuxGetMap(DevicePtr pDev, unsigned char *map, int *nButtons)
{
int i;
if (nButtons) *nButtons = 3;
if (map) for (i = 0; i <= *nButtons; i++) map[i] = i;
}
void ps2LinuxVTPreSwitch(pointer p)
{
}
void ps2LinuxVTPostSwitch(pointer p)
{
}
pointer ps2LinuxCreatePrivate(DeviceIntPtr pMouse)
{
myPrivate *priv = xalloc(sizeof(*priv));
memset(priv, 0, sizeof(*priv));
priv->fd = -1;
priv->pMouse = pMouse;
return priv;
}
void ps2LinuxDestroyPrivate(pointer priv)
{
if (priv) xfree(priv);
}
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