andreacavalli/xserver-multidpi
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
cb61cf5c99
xserver-multidpi/hw/xfree86/common/xf86Xinput.c
Peter Hutterer 8a8fdd762a xfree86: always report the input options before initialising the device. 
After collecting the driver's default options, report the list of options
set for the device before calling PreInit(). This helps with debugging those
cases where options are not merged correctly.

xf86OptionListReport reports with verbosity 5, higher than the default
verbosity so this won't generate logspam in the default case.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Dan Nicholson <dbn.lists@gmail.com>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
2010-12-14 10:19:05 +10:00

1400 lines
40 KiB
C
Raw Blame History

/*
* Copyright 1995-1999 by Frederic Lepied, France. <Lepied@XFree86.org>
*
* 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 Frederic Lepied not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Frederic Lepied makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* FREDERIC LEPIED DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL FREDERIC LEPIED 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 (c) 2000-2002 by The XFree86 Project, Inc.
*
* 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of the copyright holder(s)
* and author(s) shall not be used in advertising or otherwise to promote
* the sale, use or other dealings in this Software without prior written
* authorization from the copyright holder(s) and author(s).
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <X11/Xfuncproto.h>
#include <X11/Xmd.h>
#include <X11/extensions/XI.h>
#include <X11/extensions/XIproto.h>
#include <X11/Xatom.h>
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86Config.h"
#include "xf86Xinput.h"
#include "xf86Optrec.h"
#include "mipointer.h"
#include "extinit.h"
#include "loaderProcs.h"
#include "exevents.h" /* AddInputDevice */
#include "exglobals.h"
#include "eventstr.h"
#include "inpututils.h"
#include <string.h> /* InputClassMatches */
#ifdef HAVE_FNMATCH_H
#include <fnmatch.h>
#endif
#ifdef HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
#endif
#include <stdarg.h>
#include <stdint.h> /* for int64_t */
#include "mi.h"
#include <ptrveloc.h> /* dix pointer acceleration */
#include <xserver-properties.h>
#ifdef XFreeXDGA
#include "dgaproc.h"
#endif
#include "xkbsrv.h"
/* Valuator verification macro */
#define XI_VERIFY_VALUATORS(num_valuators) \
if (num_valuators > MAX_VALUATORS) { \
xf86Msg(X_ERROR, "%s: num_valuator %d is greater than" \
" MAX_VALUATORS\n", __FUNCTION__, num_valuators); \
return; \
}
EventListPtr xf86Events = NULL;
static int
xf86InputDevicePostInit(DeviceIntPtr dev);
/**
* Eval config and modify DeviceVelocityRec accordingly
*/
static void
ProcessVelocityConfiguration(DeviceIntPtr pDev, char* devname, pointer list,
DeviceVelocityPtr s)
{
int tempi;
float tempf;
Atom float_prop = XIGetKnownProperty(XATOM_FLOAT);
Atom prop;
if(!s)
return;
/* common settings (available via device properties) */
tempf = xf86SetRealOption(list, "ConstantDeceleration", 1.0);
if (tempf > 1.0) {
xf86Msg(X_CONFIG, "%s: (accel) constant deceleration by %.1f\n",
devname, tempf);
prop = XIGetKnownProperty(ACCEL_PROP_CONSTANT_DECELERATION);
XIChangeDeviceProperty(pDev, prop, float_prop, 32,
PropModeReplace, 1, &tempf, FALSE);
}
tempf = xf86SetRealOption(list, "AdaptiveDeceleration", 1.0);
if (tempf > 1.0) {
xf86Msg(X_CONFIG, "%s: (accel) adaptive deceleration by %.1f\n",
devname, tempf);
prop = XIGetKnownProperty(ACCEL_PROP_ADAPTIVE_DECELERATION);
XIChangeDeviceProperty(pDev, prop, float_prop, 32,
PropModeReplace, 1, &tempf, FALSE);
}
/* select profile by number */
tempi = xf86SetIntOption(list, "AccelerationProfile",
s->statistics.profile_number);
prop = XIGetKnownProperty(ACCEL_PROP_PROFILE_NUMBER);
if (XIChangeDeviceProperty(pDev, prop, XA_INTEGER, 32,
PropModeReplace, 1, &tempi, FALSE) == Success) {
xf86Msg(X_CONFIG, "%s: (accel) acceleration profile %i\n", devname,
tempi);
} else {
xf86Msg(X_CONFIG, "%s: (accel) acceleration profile %i is unknown\n",
devname, tempi);
}
/* set scaling */
tempf = xf86SetRealOption(list, "ExpectedRate", 0);
prop = XIGetKnownProperty(ACCEL_PROP_VELOCITY_SCALING);
if (tempf > 0) {
tempf = 1000.0 / tempf;
XIChangeDeviceProperty(pDev, prop, float_prop, 32,
PropModeReplace, 1, &tempf, FALSE);
} else {
tempf = xf86SetRealOption(list, "VelocityScale", s->corr_mul);
XIChangeDeviceProperty(pDev, prop, float_prop, 32,
PropModeReplace, 1, &tempf, FALSE);
}
tempi = xf86SetIntOption(list, "VelocityTrackerCount", -1);
if (tempi > 1)
InitTrackers(s, tempi);
s->initial_range = xf86SetIntOption(list, "VelocityInitialRange",
s->initial_range);
s->max_diff = xf86SetRealOption(list, "VelocityAbsDiff", s->max_diff);
tempf = xf86SetRealOption(list, "VelocityRelDiff", -1);
if (tempf >= 0) {
xf86Msg(X_CONFIG, "%s: (accel) max rel. velocity difference: %.1f%%\n",
devname, tempf*100.0);
s->max_rel_diff = tempf;
}
/* Configure softening. If const deceleration is used, this is expected
* to provide better subpixel information so we enable
* softening by default only if ConstantDeceleration is not used
*/
s->use_softening = xf86SetBoolOption(list, "Softening",
s->const_acceleration == 1.0);
s->average_accel = xf86SetBoolOption(list, "AccelerationProfileAveraging",
s->average_accel);
s->reset_time = xf86SetIntOption(list, "VelocityReset", s->reset_time);
}
static void
ApplyAccelerationSettings(DeviceIntPtr dev){
int scheme, i;
DeviceVelocityPtr pVel;
InputInfoPtr pInfo = (InputInfoPtr)dev->public.devicePrivate;
char* schemeStr;
if (dev->valuator && dev->ptrfeed) {
schemeStr = xf86SetStrOption(pInfo->options, "AccelerationScheme", "");
scheme = dev->valuator->accelScheme.number;
if (!xf86NameCmp(schemeStr, "predictable"))
scheme = PtrAccelPredictable;
if (!xf86NameCmp(schemeStr, "lightweight"))
scheme = PtrAccelLightweight;
if (!xf86NameCmp(schemeStr, "none"))
scheme = PtrAccelNoOp;
/* reinit scheme if needed */
if (dev->valuator->accelScheme.number != scheme) {
if (dev->valuator->accelScheme.AccelCleanupProc) {
dev->valuator->accelScheme.AccelCleanupProc(dev);
}
if (InitPointerAccelerationScheme(dev, scheme)) {
xf86Msg(X_CONFIG, "%s: (accel) selected scheme %s/%i\n",
pInfo->name, schemeStr, scheme);
} else {
xf86Msg(X_CONFIG, "%s: (accel) could not init scheme %s\n",
pInfo->name, schemeStr);
scheme = dev->valuator->accelScheme.number;
}
} else {
xf86Msg(X_CONFIG, "%s: (accel) keeping acceleration scheme %i\n",
pInfo->name, scheme);
}
free(schemeStr);
/* process special configuration */
switch (scheme) {
case PtrAccelPredictable:
pVel = GetDevicePredictableAccelData(dev);
ProcessVelocityConfiguration (dev, pInfo->name, pInfo->options,
pVel);
break;
}
i = xf86SetIntOption(pInfo->options, "AccelerationNumerator",
dev->ptrfeed->ctrl.num);
if (i >= 0)
dev->ptrfeed->ctrl.num = i;
i = xf86SetIntOption(pInfo->options, "AccelerationDenominator",
dev->ptrfeed->ctrl.den);
if (i > 0)
dev->ptrfeed->ctrl.den = i;
i = xf86SetIntOption(pInfo->options, "AccelerationThreshold",
dev->ptrfeed->ctrl.threshold);
if (i >= 0)
dev->ptrfeed->ctrl.threshold = i;
xf86Msg(X_CONFIG, "%s: (accel) acceleration factor: %.3f\n",
pInfo->name, ((float)dev->ptrfeed->ctrl.num)/
((float)dev->ptrfeed->ctrl.den));
xf86Msg(X_CONFIG, "%s: (accel) acceleration threshold: %i\n",
pInfo->name, dev->ptrfeed->ctrl.threshold);
}
}
/***********************************************************************
*
* xf86ProcessCommonOptions --
*
* Process global options.
*
***********************************************************************
*/
void
xf86ProcessCommonOptions(InputInfoPtr pInfo,
pointer list)
{
if (xf86SetBoolOption(list, "Floating", 0) ||
!xf86SetBoolOption(list, "AlwaysCore", 1) ||
!xf86SetBoolOption(list, "SendCoreEvents", 1) ||
!xf86SetBoolOption(list, "CorePointer", 1) ||
!xf86SetBoolOption(list, "CoreKeyboard", 1)) {
xf86Msg(X_CONFIG, "%s: doesn't report core events\n", pInfo->name);
} else {
pInfo->flags |= XI86_ALWAYS_CORE;
xf86Msg(X_CONFIG, "%s: always reports core events\n", pInfo->name);
}
}
/***********************************************************************
*
* xf86ActivateDevice --
*
* Initialize an input device.
*
* Returns TRUE on success, or FALSE otherwise.
***********************************************************************
*/
static DeviceIntPtr
xf86ActivateDevice(InputInfoPtr pInfo)
{
DeviceIntPtr dev;
Atom atom;
dev = AddInputDevice(serverClient, pInfo->device_control, TRUE);
if (dev == NULL)
{
xf86Msg(X_ERROR, "Too many input devices. Ignoring %s\n",
pInfo->name);
pInfo->dev = NULL;
return NULL;
}
atom = MakeAtom(pInfo->type_name, strlen(pInfo->type_name), TRUE);
AssignTypeAndName(dev, atom, pInfo->name);
dev->public.devicePrivate = pInfo;
pInfo->dev = dev;
dev->coreEvents = pInfo->flags & XI86_ALWAYS_CORE;
dev->type = SLAVE;
dev->spriteInfo->spriteOwner = FALSE;
dev->config_info = xf86SetStrOption(pInfo->options, "config_info", NULL);
if (serverGeneration == 1)
xf86Msg(X_INFO, "XINPUT: Adding extended input device \"%s\" (type: %s)\n",
pInfo->name, pInfo->type_name);
return dev;
}
/****************************************************************************
*
* Caller: ProcXSetDeviceMode
*
* Change the mode of an extension device.
* This function is used to change the mode of a device from reporting
* relative motion to reporting absolute positional information, and
* vice versa.
* The default implementation below is that no such devices are supported.
*
***********************************************************************
*/
int
SetDeviceMode (ClientPtr client, DeviceIntPtr dev, int mode)
{
InputInfoPtr pInfo = (InputInfoPtr)dev->public.devicePrivate;
if (pInfo->switch_mode) {
return (*pInfo->switch_mode)(client, dev, mode);
}
else
return BadMatch;
}
/***********************************************************************
*
* Caller: ProcXSetDeviceValuators
*
* Set the value of valuators on an extension input device.
* This function is used to set the initial value of valuators on
* those input devices that are capable of reporting either relative
* motion or an absolute position, and allow an initial position to be set.
* The default implementation below is that no such devices are supported.
*
***********************************************************************
*/
int
SetDeviceValuators (ClientPtr client, DeviceIntPtr dev, int *valuators,
int first_valuator, int num_valuators)
{
InputInfoPtr pInfo = (InputInfoPtr) dev->public.devicePrivate;
if (pInfo->set_device_valuators)
return (*pInfo->set_device_valuators)(pInfo, valuators, first_valuator,
num_valuators);
return BadMatch;
}
/***********************************************************************
*
* Caller: ProcXChangeDeviceControl
*
* Change the specified device controls on an extension input device.
*
***********************************************************************
*/
int
ChangeDeviceControl (ClientPtr client, DeviceIntPtr dev, xDeviceCtl *control)
{
InputInfoPtr pInfo = (InputInfoPtr)dev->public.devicePrivate;
if (!pInfo->control_proc) {
switch (control->control) {
case DEVICE_CORE:
return BadMatch;
case DEVICE_RESOLUTION:
case DEVICE_ABS_CALIB:
case DEVICE_ABS_AREA:
case DEVICE_ENABLE:
return Success;
default:
return BadMatch;
}
}
else {
return (*pInfo->control_proc)(pInfo, control);
}
}
/*
* Get the operating system name from uname and store it statically to avoid
* repeating the system call each time MatchOS is checked.
*/
static const char *
HostOS(void)
{
#ifdef HAVE_SYS_UTSNAME_H
struct utsname name;
static char host_os[sizeof(name.sysname)] = "";
if (*host_os == '\0') {
if (uname(&name) >= 0)
strcpy(host_os, name.sysname);
else {
strncpy(host_os, "unknown", sizeof(host_os));
host_os[sizeof(host_os)-1] = '\0';
}
}
return host_os;
#else
return "";
#endif
}
static int
match_substring(const char *attr, const char *pattern)
{
return (strstr(attr, pattern)) ? 0 : -1;
}
#ifdef HAVE_FNMATCH_H
static int
match_pattern(const char *attr, const char *pattern)
{
return fnmatch(pattern, attr, 0);
}
#else
#define match_pattern match_substring
#endif
#ifdef HAVE_FNMATCH_H
static int
match_path_pattern(const char *attr, const char *pattern)
{
return fnmatch(pattern, attr, FNM_PATHNAME);
}
#else
#define match_path_pattern match_substring
#endif
/*
* Match an attribute against a list of NULL terminated arrays of patterns.
* If a pattern in each list entry is matched, return TRUE.
*/
static Bool
MatchAttrToken(const char *attr, struct list *patterns,
int (*compare)(const char *attr, const char *pattern))
{
const xf86MatchGroup *group;
/* If there are no patterns, accept the match */
if (list_is_empty(patterns))
return TRUE;
/* If there are patterns but no attribute, reject the match */
if (!attr)
return FALSE;
/*
* Otherwise, iterate the list of patterns ensuring each entry has a
* match. Each list entry is a separate Match line of the same type.
*/
list_for_each_entry(group, patterns, entry) {
char * const *cur;
Bool match = FALSE;
for (cur = group->values; *cur; cur++)
if ((*compare)(attr, *cur) == 0) {
match = TRUE;
break;
}
if (!match)
return FALSE;
}
/* All the entries in the list matched the attribute */
return TRUE;
}
/*
* Classes without any Match statements match all devices. Otherwise, all
* statements must match.
*/
static Bool
InputClassMatches(const XF86ConfInputClassPtr iclass, const InputInfoPtr idev,
const InputAttributes *attrs)
{
/* MatchProduct substring */
if (!MatchAttrToken(attrs->product, &iclass->match_product, match_substring))
return FALSE;
/* MatchVendor substring */
if (!MatchAttrToken(attrs->vendor, &iclass->match_vendor, match_substring))
return FALSE;
/* MatchDevicePath pattern */
if (!MatchAttrToken(attrs->device, &iclass->match_device, match_path_pattern))
return FALSE;
/* MatchOS case-insensitive string */
if (!MatchAttrToken(HostOS(), &iclass->match_os, strcasecmp))
return FALSE;
/* MatchPnPID pattern */
if (!MatchAttrToken(attrs->pnp_id, &iclass->match_pnpid, match_pattern))
return FALSE;
/* MatchUSBID pattern */
if (!MatchAttrToken(attrs->usb_id, &iclass->match_usbid, match_pattern))
return FALSE;
/* MatchDriver string */
if (!MatchAttrToken(idev->driver, &iclass->match_driver, strcmp))
return FALSE;
/*
* MatchTag string
* See if any of the device's tags match any of the MatchTag tokens.
*/
if (!list_is_empty(&iclass->match_tag)) {
char * const *tag;
Bool match;
if (!attrs->tags)
return FALSE;
for (tag = attrs->tags, match = FALSE; *tag; tag++) {
if (MatchAttrToken(*tag, &iclass->match_tag, strcmp)) {
match = TRUE;
break;
}
}
if (!match)
return FALSE;
}
/* MatchIs* booleans */
if (iclass->is_keyboard.set &&
iclass->is_keyboard.val != !!(attrs->flags & ATTR_KEYBOARD))
return FALSE;
if (iclass->is_pointer.set &&
iclass->is_pointer.val != !!(attrs->flags & ATTR_POINTER))
return FALSE;
if (iclass->is_joystick.set &&
iclass->is_joystick.val != !!(attrs->flags & ATTR_JOYSTICK))
return FALSE;
if (iclass->is_tablet.set &&
iclass->is_tablet.val != !!(attrs->flags & ATTR_TABLET))
return FALSE;
if (iclass->is_touchpad.set &&
iclass->is_touchpad.val != !!(attrs->flags & ATTR_TOUCHPAD))
return FALSE;
if (iclass->is_touchscreen.set &&
iclass->is_touchscreen.val != !!(attrs->flags & ATTR_TOUCHSCREEN))
return FALSE;
return TRUE;
}
/*
* Merge in any InputClass configurations. Options in each InputClass
* section have more priority than the original device configuration as
* well as any previous InputClass sections.
*/
static int
MergeInputClasses(const InputInfoPtr idev, const InputAttributes *attrs)
{
XF86ConfInputClassPtr cl;
XF86OptionPtr classopts;
for (cl = xf86configptr->conf_inputclass_lst; cl; cl = cl->list.next) {
if (!InputClassMatches(cl, idev, attrs))
continue;
/* Collect class options and driver settings */
classopts = xf86optionListDup(cl->option_lst);
if (cl->driver) {
free(idev->driver);
idev->driver = xstrdup(cl->driver);
if (!idev->driver) {
xf86Msg(X_ERROR, "Failed to allocate memory while merging "
"InputClass configuration");
return BadAlloc;
}
classopts = xf86ReplaceStrOption(classopts, "driver",
idev->driver);
}
/* Apply options to device with InputClass settings preferred. */
xf86Msg(X_CONFIG, "%s: Applying InputClass \"%s\"\n",
idev->name, cl->identifier);
idev->options = xf86optionListMerge(idev->options, classopts);
}
return Success;
}
/*
* Iterate the list of classes and look for Option "Ignore". Return the
* value of the last matching class and holler when returning TRUE.
*/
static Bool
IgnoreInputClass(const InputInfoPtr idev, const InputAttributes *attrs)
{
XF86ConfInputClassPtr cl;
Bool ignore = FALSE;
const char *ignore_class;
for (cl = xf86configptr->conf_inputclass_lst; cl; cl = cl->list.next) {
if (!InputClassMatches(cl, idev, attrs))
continue;
if (xf86findOption(cl->option_lst, "Ignore")) {
ignore = xf86CheckBoolOption(cl->option_lst, "Ignore", FALSE);
ignore_class = cl->identifier;
}
}
if (ignore)
xf86Msg(X_CONFIG, "%s: Ignoring device from InputClass \"%s\"\n",
idev->name, ignore_class);
return ignore;
}
InputInfoPtr
xf86AllocateInput(void)
{
InputInfoPtr pInfo;
pInfo = calloc(sizeof(*pInfo), 1);
if (!pInfo)
return NULL;
pInfo->fd = -1;
pInfo->type_name = "UNKNOWN";
return pInfo;
}
/* Append InputInfoRec to the tail of xf86InputDevs. */
static void
xf86AddInput(InputDriverPtr drv, InputInfoPtr pInfo)
{
InputInfoPtr *prev = NULL;
pInfo->drv = drv;
pInfo->module = DuplicateModule(drv->module, NULL);
for (prev = &xf86InputDevs; *prev; prev = &(*prev)->next)
;
*prev = pInfo;
pInfo->next = NULL;
xf86CollectInputOptions(pInfo, (const char**)drv->default_options);
xf86OptionListReport(pInfo->options);
xf86ProcessCommonOptions(pInfo, pInfo->options);
}
/*
* Remove an entry from xf86InputDevs and free all the device's information.
*/
void
xf86DeleteInput(InputInfoPtr pInp, int flags)
{
/* First check if the inputdev is valid. */
if (pInp == NULL)
return;
if (pInp->module)
UnloadModule(pInp->module);
/* This should *really* be handled in drv->UnInit(dev) call instead, but
* if the driver forgets about it make sure we free it or at least crash
* with flying colors */
free(pInp->private);
FreeInputAttributes(pInp->attrs);
/* Remove the entry from the list. */
if (pInp == xf86InputDevs)
xf86InputDevs = pInp->next;
else {
InputInfoPtr p = xf86InputDevs;
while (p && p->next != pInp)
p = p->next;
if (p)
p->next = pInp->next;
/* Else the entry wasn't in the xf86InputDevs list (ignore this). */
}
free(pInp->driver);
free(pInp->name);
xf86optionListFree(pInp->options);
free(pInp);
}
/*
* Apply backend-specific initialization. Invoked after ActiveteDevice(),
* i.e. after the driver successfully completed DEVICE_INIT and the device
* is advertised.
* @param dev the device
* @return Success or an error code
*/
static int
xf86InputDevicePostInit(DeviceIntPtr dev) {
ApplyAccelerationSettings(dev);
return Success;
}
/**
* Create a new input device, activate and enable it.
*
* Possible return codes:
* BadName .. a bad driver name was supplied.
* BadImplementation ... The driver does not have a PreInit function. This
* is a driver bug.
* BadMatch .. device initialization failed.
* BadAlloc .. too many input devices
*
* @param idev The device, already set up with identifier, driver, and the
* options.
* @param pdev Pointer to the new device, if Success was reported.
* @param enable Enable the device after activating it.
*
* @return Success or an error code
*/
_X_INTERNAL int
xf86NewInputDevice(InputInfoPtr pInfo, DeviceIntPtr *pdev, BOOL enable)
{
InputDriverPtr drv = NULL;
DeviceIntPtr dev = NULL;
int rval;
/* Memory leak for every attached device if we don't
* test if the module is already loaded first */
drv = xf86LookupInputDriver(pInfo->driver);
if (!drv)
if (xf86LoadOneModule(pInfo->driver, NULL))
drv = xf86LookupInputDriver(pInfo->driver);
if (!drv) {
xf86Msg(X_ERROR, "No input driver matching `%s'\n", pInfo->driver);
rval = BadName;
goto unwind;
}
if (!drv->PreInit) {
xf86Msg(X_ERROR,
"Input driver `%s' has no PreInit function (ignoring)\n",
drv->driverName);
rval = BadImplementation;
goto unwind;
}
xf86AddInput(drv, pInfo);
rval = drv->PreInit(drv, pInfo, 0);
if (rval != Success) {
xf86Msg(X_ERROR, "PreInit returned %d for \"%s\"\n", rval, pInfo->name);
goto unwind;
}
if (!(dev = xf86ActivateDevice(pInfo)))
{
rval = BadAlloc;
goto unwind;
}
rval = ActivateDevice(dev, TRUE);
if (rval != Success)
{
xf86Msg(X_ERROR, "Couldn't init device \"%s\"\n", pInfo->name);
RemoveDevice(dev, TRUE);
goto unwind;
}
rval = xf86InputDevicePostInit(dev);
if (rval != Success)
{
xf86Msg(X_ERROR, "Couldn't post-init device \"%s\"\n", pInfo->name);
RemoveDevice(dev, TRUE);
goto unwind;
}
/* Enable it if it's properly initialised and we're currently in the VT */
if (enable && dev->inited && dev->startup && xf86Screens[0]->vtSema)
{
EnableDevice(dev, TRUE);
if (!dev->enabled)
{
xf86Msg(X_ERROR, "Couldn't init device \"%s\"\n", pInfo->name);
rval = BadMatch;
goto unwind;
}
/* send enter/leave event, update sprite window */
CheckMotion(NULL, dev);
}
*pdev = dev;
return Success;
unwind:
if(pInfo) {
if(drv && drv->UnInit)
drv->UnInit(drv, pInfo, 0);
else
xf86DeleteInput(pInfo, 0);
}
return rval;
}
int
NewInputDeviceRequest (InputOption *options, InputAttributes *attrs,
DeviceIntPtr *pdev)
{
InputInfoPtr pInfo = NULL;
InputOption *option = NULL;
int rval = Success;
int is_auto = 0;
pInfo = xf86AllocateInput();
if (!pInfo)
return BadAlloc;
for (option = options; option; option = option->next) {
if (strcasecmp(option->key, "driver") == 0) {
if (pInfo->driver) {
rval = BadRequest;
goto unwind;
}
pInfo->driver = xstrdup(option->value);
if (!pInfo->driver) {
rval = BadAlloc;
goto unwind;
}
}
if (strcasecmp(option->key, "name") == 0 ||
strcasecmp(option->key, "identifier") == 0) {
if (pInfo->name) {
rval = BadRequest;
goto unwind;
}
pInfo->name = xstrdup(option->value);
if (!pInfo->name) {
rval = BadAlloc;
goto unwind;
}
}
if (strcmp(option->key, "_source") == 0 &&
(strcmp(option->value, "server/hal") == 0 ||
strcmp(option->value, "server/udev") == 0)) {
is_auto = 1;
if (!xf86Info.autoAddDevices) {
rval = BadMatch;
goto unwind;
}
}
}
for (option = options; option; option = option->next) {
/* Steal option key/value strings from the provided list.
* We need those strings, the InputOption list doesn't. */
pInfo->options = xf86addNewOption(pInfo->options,
option->key, option->value);
option->key = NULL;
option->value = NULL;
}
/* Apply InputClass settings */
if (attrs) {
if (IgnoreInputClass(pInfo, attrs)) {
rval = BadIDChoice;
goto unwind;
}
rval = MergeInputClasses(pInfo, attrs);
if (rval != Success)
goto unwind;
pInfo->attrs = DuplicateInputAttributes(attrs);
}
if (!pInfo->driver || !pInfo->name) {
xf86Msg(X_INFO, "No input driver/identifier specified (ignoring)\n");
rval = BadRequest;
goto unwind;
}
if (!pInfo->name) {
xf86Msg(X_ERROR, "No device identifier specified (ignoring)\n");
rval = BadMatch;
goto unwind;
}
rval = xf86NewInputDevice(pInfo, pdev,
(!is_auto || (is_auto && xf86Info.autoEnableDevices)));
return rval;
unwind:
if (is_auto && !xf86Info.autoAddDevices)
xf86Msg(X_INFO, "AutoAddDevices is off - not adding device.\n");
xf86DeleteInput(pInfo, 0);
return rval;
}
void
DeleteInputDeviceRequest(DeviceIntPtr pDev)
{
InputInfoPtr pInfo = (InputInfoPtr) pDev->public.devicePrivate;
InputDriverPtr drv = NULL;
Bool isMaster = IsMaster(pDev);
if (pInfo) /* need to get these before RemoveDevice */
drv = pInfo->drv;
OsBlockSignals();
RemoveDevice(pDev, TRUE);
if (!isMaster && pInfo != NULL)
{
if(drv->UnInit)
drv->UnInit(drv, pInfo, 0);
else
xf86DeleteInput(pInfo, 0);
}
OsReleaseSignals();
}
/*
* convenient functions to post events
*/
void
xf86PostMotionEvent(DeviceIntPtr device,
int is_absolute,
int first_valuator,
int num_valuators,
...)
{
va_list var;
int i = 0;
ValuatorMask mask;
XI_VERIFY_VALUATORS(num_valuators);
valuator_mask_zero(&mask);
va_start(var, num_valuators);
for (i = 0; i < num_valuators; i++)
valuator_mask_set(&mask, first_valuator + i, va_arg(var, int));
va_end(var);
xf86PostMotionEventM(device, is_absolute, &mask);
}
void
xf86PostMotionEventP(DeviceIntPtr device,
int is_absolute,
int first_valuator,
int num_valuators,
const int *valuators)
{
ValuatorMask mask;
XI_VERIFY_VALUATORS(num_valuators);
valuator_mask_set_range(&mask, first_valuator, num_valuators, valuators);
xf86PostMotionEventM(device, is_absolute, &mask);
}
void
xf86PostMotionEventM(DeviceIntPtr device,
int is_absolute,
const ValuatorMask *mask)
{
int i = 0, nevents = 0;
DeviceEvent *event;
int flags = 0;
#if XFreeXDGA
int index;
int dx = 0, dy = 0;
#endif
if (valuator_mask_num_valuators(mask) > 0)
{
if (is_absolute)
flags = POINTER_ABSOLUTE;
else
flags = POINTER_RELATIVE | POINTER_ACCELERATE;
}
#if XFreeXDGA
/* The evdev driver may not always send all axes across. */
if (valuator_mask_isset(mask, 0) ||
valuator_mask_isset(mask, 1))
if (miPointerGetScreen(device)) {
index = miPointerGetScreen(device)->myNum;
if (valuator_mask_isset(mask, 0))
{
dx = valuator_mask_get(mask, 0);
if (is_absolute)
dx -= device->last.valuators[0];
}
if (valuator_mask_isset(mask, 1))
{
dy = valuator_mask_get(mask, 1);
if (is_absolute)
dy -= device->last.valuators[1];
}
if (DGAStealMotionEvent(device, index, dx, dy))
return;
}
#endif
nevents = GetPointerEvents(xf86Events, device, MotionNotify, 0, flags, mask);
for (i = 0; i < nevents; i++) {
event = (DeviceEvent*)((xf86Events + i)->event);
mieqEnqueue(device, (InternalEvent*)((xf86Events + i)->event));
}
}
void
xf86PostProximityEvent(DeviceIntPtr device,
int is_in,
int first_valuator,
int num_valuators,
...)
{
va_list var;
int i;
ValuatorMask mask;
XI_VERIFY_VALUATORS(num_valuators);
valuator_mask_zero(&mask);
va_start(var, num_valuators);
for (i = 0; i < num_valuators; i++)
valuator_mask_set(&mask, first_valuator + i, va_arg(var, int));
va_end(var);
xf86PostProximityEventM(device, is_in, &mask);
}
void
xf86PostProximityEventP(DeviceIntPtr device,
int is_in,
int first_valuator,
int num_valuators,
const int *valuators)
{
ValuatorMask mask;
XI_VERIFY_VALUATORS(num_valuators);
valuator_mask_set_range(&mask, first_valuator, num_valuators, valuators);
xf86PostProximityEventM(device, is_in, &mask);
}
void
xf86PostProximityEventM(DeviceIntPtr device,
int is_in,
const ValuatorMask *mask)
{
int i, nevents;
nevents = GetProximityEvents(xf86Events, device,
is_in ? ProximityIn : ProximityOut, mask);
for (i = 0; i < nevents; i++)
mieqEnqueue(device, (InternalEvent*)((xf86Events + i)->event));
}
void
xf86PostButtonEvent(DeviceIntPtr device,
int is_absolute,
int button,
int is_down,
int first_valuator,
int num_valuators,
...)
{
va_list var;
ValuatorMask mask;
int i = 0;
XI_VERIFY_VALUATORS(num_valuators);
valuator_mask_zero(&mask);
va_start(var, num_valuators);
for (i = 0; i < num_valuators; i++)
valuator_mask_set(&mask, first_valuator + i, va_arg(var, int));
va_end(var);
xf86PostButtonEventM(device, is_absolute, button, is_down, &mask);
}
void
xf86PostButtonEventP(DeviceIntPtr device,
int is_absolute,
int button,
int is_down,
int first_valuator,
int num_valuators,
const int *valuators)
{
ValuatorMask mask;
XI_VERIFY_VALUATORS(num_valuators);
valuator_mask_set_range(&mask, first_valuator, num_valuators, valuators);
xf86PostButtonEventM(device, is_absolute, button, is_down, &mask);
}
void
xf86PostButtonEventM(DeviceIntPtr device,
int is_absolute,
int button,
int is_down,
const ValuatorMask *mask)
{
int i = 0, nevents = 0;
int flags = 0;
#if XFreeXDGA
int index;
#endif
if (valuator_mask_num_valuators(mask) > 0)
{
if (is_absolute)
flags = POINTER_ABSOLUTE;
else
flags = POINTER_RELATIVE | POINTER_ACCELERATE;
}
#if XFreeXDGA
if (miPointerGetScreen(device)) {
index = miPointerGetScreen(device)->myNum;
if (DGAStealButtonEvent(device, index, button, is_down))
return;
}
#endif
nevents = GetPointerEvents(xf86Events, device,
is_down ? ButtonPress : ButtonRelease, button,
flags, mask);
for (i = 0; i < nevents; i++)
mieqEnqueue(device, (InternalEvent*)((xf86Events + i)->event));
}
void
xf86PostKeyEvent(DeviceIntPtr device,
unsigned int key_code,
int is_down,
int is_absolute,
int first_valuator,
int num_valuators,
...)
{
va_list var;
int i = 0;
ValuatorMask mask;
XI_VERIFY_VALUATORS(num_valuators);
valuator_mask_zero(&mask);
va_start(var, num_valuators);
for (i = 0; i < num_valuators; i++)
valuator_mask_set(&mask, first_valuator + i, va_arg(var, int));
va_end(var);
xf86PostKeyEventM(device, key_code, is_down, is_absolute, &mask);
}
void
xf86PostKeyEventP(DeviceIntPtr device,
unsigned int key_code,
int is_down,
int is_absolute,
int first_valuator,
int num_valuators,
const int *valuators)
{
ValuatorMask mask;
XI_VERIFY_VALUATORS(num_valuators);
valuator_mask_set_range(&mask, first_valuator, num_valuators, valuators);
xf86PostKeyEventM(device, key_code, is_down, is_absolute, &mask);
}
void
xf86PostKeyEventM(DeviceIntPtr device,
unsigned int key_code,
int is_down,
int is_absolute,
const ValuatorMask *mask)
{
int i = 0, nevents = 0;
if (is_absolute) {
nevents = GetKeyboardValuatorEvents(xf86Events, device,
is_down ? KeyPress : KeyRelease,
key_code, mask);
}
else {
nevents = GetKeyboardEvents(xf86Events, device,
is_down ? KeyPress : KeyRelease,
key_code);
}
for (i = 0; i < nevents; i++)
mieqEnqueue(device, (InternalEvent*)((xf86Events + i)->event));
}
void
xf86PostKeyboardEvent(DeviceIntPtr device,
unsigned int key_code,
int is_down)
{
ValuatorMask mask;
valuator_mask_zero(&mask);
xf86PostKeyEventM(device, key_code, is_down, 0, &mask);
}
InputInfoPtr
xf86FirstLocalDevice(void)
{
return xf86InputDevs;
}
/*
* Cx - raw data from touch screen
* to_max - scaled highest dimension
* (remember, this is of rows - 1 because of 0 origin)
* to_min - scaled lowest dimension
* from_max - highest raw value from touch screen calibration
* from_min - lowest raw value from touch screen calibration
*
* This function is the same for X or Y coordinates.
* You may have to reverse the high and low values to compensate for
* different orgins on the touch screen vs X.
*
* e.g. to scale from device coordinates into screen coordinates, call
* xf86ScaleAxis(x, 0, screen_width, dev_min, dev_max);
*/
int
xf86ScaleAxis(int Cx,
int to_max,
int to_min,
int from_max,
int from_min )
{
int X;
int64_t to_width = to_max - to_min;
int64_t from_width = from_max - from_min;
if (from_width) {
X = (int)(((to_width * (Cx - from_min)) / from_width) + to_min);
}
else {
X = 0;
ErrorF ("Divide by Zero in xf86ScaleAxis\n");
}
if (X > to_max)
X = to_max;
if (X < to_min)
X = to_min;
return X;
}
/*
* This function checks the given screen against the current screen and
* makes changes if appropriate. It should be called from an XInput driver's
* ReadInput function before any events are posted, if the device is screen
* specific like a touch screen.
*/
void
xf86XInputSetScreen(InputInfoPtr pInfo,
int screen_number,
int x,
int y)
{
if (miPointerGetScreen(pInfo->dev) !=
screenInfo.screens[screen_number]) {
miPointerSetScreen(pInfo->dev, screen_number, x, y);
}
}
void
xf86InitValuatorAxisStruct(DeviceIntPtr dev, int axnum, Atom label, int minval, int maxval,
int resolution, int min_res, int max_res, int mode)
{
if (!dev || !dev->valuator)
return;
InitValuatorAxisStruct(dev, axnum, label, minval, maxval, resolution, min_res,
max_res, mode);
}
/*
* Set the valuator values to be in synch with dix/event.c
* DefineInitialRootWindow().
*/
void
xf86InitValuatorDefaults(DeviceIntPtr dev, int axnum)
{
if (axnum == 0) {
dev->valuator->axisVal[0] = screenInfo.screens[0]->width / 2;
dev->last.valuators[0] = dev->valuator->axisVal[0];
}
else if (axnum == 1) {
dev->valuator->axisVal[1] = screenInfo.screens[0]->height / 2;
dev->last.valuators[1] = dev->valuator->axisVal[1];
}
}
/**
* Deactivate a device. Call this function from the driver if you receive a
* read error or something else that spoils your day.
* Device will be moved to the off_devices list, but it will still be there
* until you really clean up after it.
* Notifies the client about an inactive device.
*
* @param panic True if device is unrecoverable and needs to be removed.
*/
void
xf86DisableDevice(DeviceIntPtr dev, Bool panic)
{
if(!panic)
{
DisableDevice(dev, TRUE);
} else
{
SendDevicePresenceEvent(dev->id, DeviceUnrecoverable);
DeleteInputDeviceRequest(dev);
}
}
/**
* Reactivate a device. Call this function from the driver if you just found
* out that the read error wasn't quite that bad after all.
* Device will be re-activated, and an event sent to the client.
*/
void
xf86EnableDevice(DeviceIntPtr dev)
{
EnableDevice(dev, TRUE);
}
/* end of xf86Xinput.c */
Reference in New Issue View Git Blame Copy Permalink