xserver-multidpi/hw/dmx/input/lnx-ms.c
Keith Packard 9838b7032e Introduce a consistent coding style
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:

	-bap
	-psl
	-T PrivatePtr
	-T pmWait
	-T _XFUNCPROTOBEGIN
	-T _XFUNCPROTOEND
	-T _X_EXPORT

The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.

The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.

The comparison was done with this script:

dir1=$1
dir2=$2

for dir in $dir1 $dir2; do
	(cd $dir && find . -name '*.o' | while read file; do
		dir=`dirname $file`
		base=`basename $file .o`
		dump=$dir/$base.dump
		objdump -d $file > $dump
	done)
done

find $dir1 -name '*.dump' | while read dump; do
	otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
	diff -u $dump $otherdump
done

Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2012-03-21 13:54:42 -07:00

349 lines
10 KiB
C

/* Portions of this file were derived from the following files:
*
**********************************************************************
*
* Xserver/hw/kdrive/linux/ms.c
*
* Copyright (c) 2001 by Juliusz Chroboczek
* Copyright (c) 1999 by Keith Packard
*
* 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 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 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
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* 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.
*
*/
/*
* Copyright 2001-2003 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>
*
*/
/** \file
*
* This code implements a low-level device driver for a serial MS mouse.
* The code is derived from code by Juliusz Chroboczek and Keith Packard
* (see the source code for complete references). */
#ifdef HAVE_DMX_CONFIG_H
#include <dmx-config.h>
#endif
#include "inputstr.h"
#include <X11/Xos.h>
#include <errno.h>
#include <termios.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-ms.h"
#define GETPRIV myPrivate *priv \
= ((DMXLocalInputInfoPtr)(pDev->devicePrivate))->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 MOTIONPROC dmxMotionProcPtr
#define ENQUEUEPROC dmxEnqueueProcPtr
#define CHECKPROC dmxCheckSpecialProcPtr
#define BLOCK DMXBlockType
/* End of interface definitions. */
/*****************************************************************************/
/* Private area for MS mouse devices. */
typedef struct _myPrivate {
DeviceIntPtr pMouse;
int fd;
struct termios tty;
enum {
button1 = 0x0001,
button2 = 0x0002,
button3 = 0x0004,
button4 = 0x0008,
button5 = 0x0010
} buttons;
} myPrivate;
static int
msLinuxReadBytes(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
msLinuxButton(DevicePtr pDev, ENQUEUEPROC enqueue, int buttons, BLOCK block)
{
GETPRIV;
#define PRESS(b) \
do { \
enqueue(pDev, ButtonPress, 0, 0, NULL, block); \
} while (0)
#define RELEASE(b) \
do { \
enqueue(pDev, ButtonRelease, 0, 0, NULL, block); \
} 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;
}
/** Read an event from the \a pDev device. If the event is a motion
* event, enqueue it with the \a motion function. Otherwise, check for
* special keys with the \a checkspecial function and enqueue the event
* with the \a enqueue function. The \a block type is passed to the
* functions so that they may block SIGIO handling as appropriate to the
* caller of this function. */
void
msLinuxRead(DevicePtr pDev,
MOTIONPROC motion,
ENQUEUEPROC enqueue, CHECKPROC checkspecial, BLOCK block)
{
GETPRIV;
unsigned char buf[3 * 200]; /* RATS: Use ok */
unsigned char *b;
int n;
int dx, dy, v[2];
while ((n = msLinuxReadBytes(priv->fd, buf, sizeof(buf), 3)) > 0) {
b = buf;
while (n >= 3) {
dx = (char) (((b[0] & 0x03) << 6) | (b[1] & 0x3f));
dy = (char) (((b[0] & 0x0c) << 4) | (b[2] & 0x3f));
v[0] = -dx;
v[1] = -dy;
motion(pDev, v, 0, 2, 1, block);
msLinuxButton(pDev, enqueue, (((b[0] & 0x10) ? button3 : 0)
| ((b[0] & 0x20) ? button1 : 0)),
block);
n -= 3;
b += 3;
}
}
}
/** Initialize \a pDev. */
void
msLinuxInit(DevicePtr pDev)
{
GETPRIV;
const char *names[] = { "/dev/serialmouse", "/dev/mouse", 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("msLinuxInit: Cannot open mouse port (%s)\n", strerror(errno));
if (!isatty(priv->fd))
FATAL1("msLinuxInit: Mouse port %s is not a tty\n", names[i]);
if (tcgetattr(priv->fd, &priv->tty) < 0)
FATAL1("msLinuxInit: tcgetattr failed (%s)\n", strerror(errno));
write(priv->fd, "*n", 2); /* 1200 baud */
usleep(100000);
}
/** Turn \a pDev on (i.e., take input from \a pDev). */
int
msLinuxOn(DevicePtr pDev)
{
GETPRIV;
struct termios nTty;
if (priv->fd < 0)
msLinuxInit(pDev);
nTty = priv->tty;
nTty.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR
| IGNCR | ICRNL | IXON | IXOFF);
nTty.c_oflag &= ~OPOST;
nTty.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
nTty.c_cflag &= ~(CSIZE | PARENB);
nTty.c_cflag |= CS8 | CLOCAL | CSTOPB;
nTty.c_cc[VTIME] = 0;
nTty.c_cc[VMIN] = 1;
cfsetispeed(&nTty, B1200);
cfsetospeed(&nTty, B1200);
if (tcsetattr(priv->fd, TCSANOW, &nTty) < 0)
FATAL1("msLinuxInit: tcsetattr failed (%s)\n", strerror(errno));
write(priv->fd, "*V", 2); /* 2 button 3 byte protocol */
return priv->fd;
}
/** Turn \a pDev off (i.e., stop taking input from \a pDev). */
void
msLinuxOff(DevicePtr pDev)
{
GETPRIV;
tcsetattr(priv->fd, TCSANOW, &priv->tty);
close(priv->fd);
priv->fd = -1;
}
static void
msLinuxGetMap(DevicePtr pDev, unsigned char *map, int *nButtons)
{
int i;
if (nButtons)
*nButtons = 3;
if (map)
for (i = 0; i <= *nButtons; i++)
map[i] = i;
}
/** Currently unused hook called prior to an VT switch. */
void
msLinuxVTPreSwitch(pointer p)
{
}
/** Currently unused hook called after returning from a VT switch. */
void
msLinuxVTPostSwitch(pointer p)
{
}
/** Create a private structure for use within this file. */
pointer
msLinuxCreatePrivate(DeviceIntPtr pMouse)
{
myPrivate *priv = calloc(1, sizeof(*priv));
priv->fd = -1;
priv->pMouse = pMouse;
return priv;
}
/** Destroy a private structure. */
void
msLinuxDestroyPrivate(pointer priv)
{
free(priv);
}
/** Fill the \a info structure with information needed to initialize \a
* pDev. */
void
msLinuxGetInfo(DevicePtr pDev, DMXLocalInitInfoPtr info)
{
info->buttonClass = 1;
msLinuxGetMap(pDev, info->map, &info->numButtons);
info->valuatorClass = 1;
info->numRelAxes = 2;
info->minval[0] = 0;
info->maxval[0] = 0;
info->res[0] = 1;
info->minres[0] = 0;
info->maxres[0] = 1;
info->ptrFeedbackClass = 1;
}