xserver-multidpi/hw/dmx/input/usb-common.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

493 lines
18 KiB
C

/*
* Copyright 2002-2003 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
*
* Routines that are common between \a usb-keyboard.c, \a usb-mouse.c, and
* \a usb-other.c */
#ifdef HAVE_DMX_CONFIG_H
#include <dmx-config.h>
#endif
#include "usb-private.h"
#define USB_COMMON_DEBUG 1
/*****************************************************************************/
/* 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 "usb-mouse.h"
#define GETPRIV myPrivate *priv \
= ((DMXLocalInputInfoPtr)(pDev->devicePrivate))->private
#define GETNAME ((DMXLocalInputInfoPtr)(pDevice->public.devicePrivate)) \
->name
#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 LOG1INPUT(p,f,a) dmxLogInput(p->dmxInput,f,a)
#define LOG3INPUT(p,f,a,b,c) dmxLogInput(p->dmxInput,f,a,b,c)
#define LOG5INPUT(p,f,a,b,c,d,e) dmxLogInput(p->dmxInput,f,a,b,c,d,e)
#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. */
/*****************************************************************************/
/** Read an event from the \a pDev device. If the event is a motion
* event, enqueue it with the \a motion function. Otherwise, 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.
*
* Since USB devices return EV_KEY events for buttons and keys, \a
* minButton is used to decide if a Button or Key event should be
* queued.*/
void
usbRead(DevicePtr pDev,
MOTIONPROC motion, ENQUEUEPROC enqueue, int minButton, BLOCK block)
{
GETPRIV;
struct input_event raw;
int v[DMX_MAX_AXES];
int axis;
#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)
while (read(priv->fd, &raw, sizeof(raw)) > 0) {
#if USB_COMMON_DEBUG > 1
LOG3("USB: type = %d, code = 0x%02x, value = %d\n",
raw.type, raw.code, raw.value);
#endif
switch (raw.type) {
case EV_KEY:
/* raw.value = 1 for first, 2 for repeat */
if (raw.code > minButton) {
if (raw.value)
PRESS((raw.code & 0x0f) + 1);
else
RELEASE((raw.code & 0x0f) + 1);
}
else {
enqueue(pDev, raw.value ? KeyPress : KeyRelease,
0, 0, NULL, block);
}
break;
case EV_REL:
switch (raw.code) {
case REL_X:
v[0] = -raw.value;
v[1] = 0;
motion(pDev, v, 0, 2, DMX_RELATIVE, block);
break;
case REL_Y:
v[0] = 0;
v[1] = -raw.value;
motion(pDev, v, 0, 2, DMX_RELATIVE, block);
break;
case REL_WHEEL:
if ((int) raw.value > 0) {
PRESS(4);
RELEASE(4);
}
else if ((int) raw.value < 0) {
PRESS(5);
RELEASE(5);
}
break;
default:
memset(v, 0, sizeof(v));
axis = priv->relmap[raw.code];
v[axis] = raw.value;
motion(pDev, v, axis, 1, DMX_RELATIVE, block);
}
break;
case EV_ABS:
memset(v, 0, sizeof(v));
axis = priv->absmap[raw.code];
v[axis] = raw.value;
motion(pDev, v, axis, 1, DMX_ABSOLUTE, block);
break;
}
}
}
#define test_bit(bit) (priv->mask[(bit)/8] & (1 << ((bit)%8)))
#define test_bits(bit) (bits[(bit)/8] & (1 << ((bit)%8)))
static void
usbPrint(myPrivate * priv, const char *filename, const char *devname, int fd)
{
int j, k;
DeviceIntPtr pDevice = priv->pDevice;
unsigned char bits[KEY_MAX / 8 + 1]; /* RATS: Use ok assuming that
* KEY_MAX is greater than
* REL_MAX, ABS_MAX, SND_MAX, and
* LED_MAX. */
LOG3INPUT(priv, "%s (%s) using %s\n", pDevice->name, GETNAME, filename);
LOG1INPUT(priv, " %s\n", devname);
for (j = 0; j < EV_MAX; j++) {
if (test_bit(j)) {
const char *type = "unknown";
char extra[256]; /* FIXME: may cause buffer overflow */
extra[0] = '\0';
switch (j) {
case EV_KEY:
type = "keys/buttons";
break;
case EV_REL:
type = "relative";
memset(bits, 0, sizeof(bits));
ioctl(priv->fd, EVIOCGBIT(EV_REL, sizeof(bits)), bits);
for (k = 0; k < REL_MAX; k++) {
if (test_bits(k))
switch (k) {
case REL_X:
strcat(extra, " X");
break;
case REL_Y:
strcat(extra, " Y");
break;
case REL_Z:
strcat(extra, " Z");
break;
case REL_HWHEEL:
strcat(extra, " HWheel");
break;
case REL_DIAL:
strcat(extra, " Dial");
break;
case REL_WHEEL:
strcat(extra, " Wheel");
break;
case REL_MISC:
strcat(extra, " Misc");
break;
}
}
break;
case EV_ABS:
type = "absolute";
memset(bits, 0, sizeof(bits));
ioctl(priv->fd, EVIOCGBIT(EV_ABS, sizeof(bits)), bits);
for (k = 0; k < ABS_MAX; k++) {
if (test_bits(k))
switch (k) {
case ABS_X:
strcat(extra, " X");
break;
case ABS_Y:
strcat(extra, " Y");
break;
case ABS_Z:
strcat(extra, " Z");
break;
case ABS_RX:
strcat(extra, " RX");
break;
case ABS_RY:
strcat(extra, " RY");
break;
case ABS_RZ:
strcat(extra, " RZ");
break;
case ABS_THROTTLE:
strcat(extra, " Throttle");
break;
case ABS_RUDDER:
strcat(extra, " Rudder");
break;
case ABS_WHEEL:
strcat(extra, " Wheel");
break;
case ABS_GAS:
strcat(extra, " Gas");
break;
case ABS_BRAKE:
strcat(extra, " Break");
break;
case ABS_HAT0X:
strcat(extra, " Hat0X");
break;
case ABS_HAT0Y:
strcat(extra, " Hat0Y");
break;
case ABS_HAT1X:
strcat(extra, " Hat1X");
break;
case ABS_HAT1Y:
strcat(extra, " Hat1Y");
break;
case ABS_HAT2X:
strcat(extra, " Hat2X");
break;
case ABS_HAT2Y:
strcat(extra, " Hat2Y");
break;
case ABS_HAT3X:
strcat(extra, " Hat3X");
break;
case ABS_HAT3Y:
strcat(extra, " Hat3Y");
break;
case ABS_PRESSURE:
strcat(extra, " Pressure");
break;
case ABS_DISTANCE:
strcat(extra, " Distance");
break;
case ABS_TILT_X:
strcat(extra, " TiltX");
break;
case ABS_TILT_Y:
strcat(extra, " TiltY");
break;
case ABS_MISC:
strcat(extra, " Misc");
break;
}
}
break;
case EV_MSC:
type = "reserved";
break;
case EV_LED:
type = "leds";
memset(bits, 0, sizeof(bits));
ioctl(priv->fd, EVIOCGBIT(EV_LED, sizeof(bits)), bits);
for (k = 0; k < LED_MAX; k++) {
if (test_bits(k))
switch (k) {
case LED_NUML:
strcat(extra, " NumLock");
break;
case LED_CAPSL:
strcat(extra, " CapsLock");
break;
case LED_SCROLLL:
strcat(extra, " ScrlLock");
break;
case LED_COMPOSE:
strcat(extra, " Compose");
break;
case LED_KANA:
strcat(extra, " Kana");
break;
case LED_SLEEP:
strcat(extra, " Sleep");
break;
case LED_SUSPEND:
strcat(extra, " Suspend");
break;
case LED_MUTE:
strcat(extra, " Mute");
break;
case LED_MISC:
strcat(extra, " Misc");
break;
}
}
break;
case EV_SND:
type = "sound";
memset(bits, 0, sizeof(bits));
ioctl(priv->fd, EVIOCGBIT(EV_SND, sizeof(bits)), bits);
for (k = 0; k < SND_MAX; k++) {
if (test_bits(k))
switch (k) {
case SND_CLICK:
strcat(extra, " Click");
break;
case SND_BELL:
strcat(extra, " Bell");
break;
}
}
break;
case EV_REP:
type = "repeat";
break;
case EV_FF:
type = "feedback";
break;
}
LOG5INPUT(priv, " Feature 0x%02x = %s%s%s%s\n", j, type,
extra[0] ? " [" : "",
extra[0] ? extra + 1 : "", extra[0] ? "]" : "");
}
}
}
/** Initialized \a pDev as a \a usbMouse, \a usbKeyboard, or \a usbOther
device. */
void
usbInit(DevicePtr pDev, usbType type)
{
GETPRIV;
char name[64]; /* RATS: Only used in snprintf */
int i, j, k;
char buf[256] = { 0, }; /* RATS: Use ok */
int version;
unsigned char bits[KEY_MAX / 8 + 1]; /* RATS: Use ok assuming that
* KEY_MAX is greater than
* REL_MAX, ABS_MAX, SND_MAX, and
* LED_MAX. */
if (priv->fd >= 0)
return;
for (i = 0; i < 32; i++) {
snprintf(name, sizeof(name), "/dev/input/event%d", i);
if ((priv->fd = open(name, O_RDWR | O_NONBLOCK, 0)) >= 0) {
ioctl(priv->fd, EVIOCGVERSION, &version);
ioctl(priv->fd, EVIOCGNAME(sizeof(buf)), buf);
memset(priv->mask, 0, sizeof(priv->mask));
ioctl(priv->fd, EVIOCGBIT(0, sizeof(priv->mask)), priv->mask);
for (j = 0; j < EV_MAX; j++) {
if (test_bit(j)) {
switch (j) {
case EV_REL:
memset(bits, 0, sizeof(bits));
ioctl(priv->fd, EVIOCGBIT(EV_REL, sizeof(bits)), bits);
for (k = 0; k < REL_MAX; k++) {
if (test_bits(k)) {
if (k == REL_X)
priv->relmap[k] = 0;
else if (k == REL_Y)
priv->relmap[k] = 1;
else
priv->relmap[k] = 2 + priv->numAbs;
++priv->numRel;
}
}
break;
case EV_ABS:
memset(bits, 0, sizeof(bits));
ioctl(priv->fd, EVIOCGBIT(EV_ABS, sizeof(bits)), bits);
for (k = 0; k < ABS_MAX; k++) {
if (test_bits(k)) {
priv->absmap[k] = priv->numAbs;
++priv->numAbs;
}
}
break;
case EV_LED:
memset(bits, 0, sizeof(bits));
ioctl(priv->fd, EVIOCGBIT(EV_LED, sizeof(bits)), bits);
for (k = 0; k < LED_MAX; k++) {
if (test_bits(k))
++priv->numLeds;
}
break;
}
}
}
switch (type) {
case usbMouse:
if (test_bit(EV_REL) && test_bit(EV_KEY))
goto found;
break;
case usbKeyboard:
if (test_bit(EV_KEY) && test_bit(EV_LED) && !test_bit(EV_ABS))
goto found;
break;
case usbOther:
if (!(test_bit(EV_REL) && test_bit(EV_KEY))
&& !(test_bit(EV_KEY) && test_bit(EV_LED)
&& !test_bit(EV_ABS)))
goto found;
break;
}
close(priv->fd);
priv->fd = -1;
}
}
if (priv->fd < 0)
FATAL1("usbInit: Cannot open /dev/input/event* port (%s)\n"
" If you have not done so, you may need to:\n"
" rmmod mousedev; rmmod keybdev\n"
" modprobe evdev\n", strerror(errno));
found:
usbPrint(priv, name, buf, priv->fd);
}
/** Turn \a pDev off (i.e., stop taking input from \a pDev). */
void
usbOff(DevicePtr pDev)
{
GETPRIV;
if (priv->fd >= 0)
close(priv->fd);
priv->fd = -1;
}
/** Create a private structure for use within this file. */
pointer
usbCreatePrivate(DeviceIntPtr pDevice)
{
myPrivate *priv = calloc(1, sizeof(*priv));
priv->fd = -1;
priv->pDevice = pDevice;
return priv;
}
/** Destroy a private structure. */
void
usbDestroyPrivate(pointer priv)
{
free(priv);
}