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/***************************************************************************
*
* Multitouch X driver
* Copyright (C) 2008 Henrik Rydberg <rydberg@euromail.se>
*
* Licensed under the Academic Free License version 2.1
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
**************************************************************************/
#include "mtouch.h"
#include "mipointer.h"
////////////////////////////////////////////////////////////////////////////
static void pointer_control(DeviceIntPtr dev, PtrCtrl *ctrl)
{
xf86Msg(X_INFO, "pointer_control\n");
}
////////////////////////////////////////////////////////////////////////////
static int pointer_property(DeviceIntPtr dev,
Atom property,
XIPropertyValuePtr prop,
BOOL checkonly)
{
xf86Msg(X_INFO, "pointer_property\n");
return Success;
}
////////////////////////////////////////////////////////////////////////////
static int device_init(DeviceIntPtr dev, LocalDevicePtr local)
{
struct MTouch *mt = local->private;
unsigned char btmap[DIM_BUTTON]={0,1,2};
local->fd = xf86OpenSerial(local->options);
if (local->fd < 0) {
xf86Msg(X_ERROR, "multitouch: cannot open device\n");
return !Success;
}
if (configure_mtouch(mt, local->fd)) {
xf86Msg(X_ERROR, "multitouch: cannot configure device\n");
return !Success;
}
xf86CloseSerial(local->fd);
InitPointerDeviceStruct((DevicePtr)dev,
btmap, DIM_BUTTON,
GetMotionHistory,
pointer_control,
GetMotionHistorySize(),
2);
xf86InitValuatorAxisStruct(dev, 0,
mt->caps.abs_position_x.minimum,
mt->caps.abs_position_x.maximum,
1, 0, 1);
xf86InitValuatorDefaults(dev, 0);
xf86InitValuatorAxisStruct(dev, 1,
mt->caps.abs_position_y.minimum,
mt->caps.abs_position_y.maximum,
1, 0, 1);
xf86InitValuatorDefaults(dev, 1);
XIRegisterPropertyHandler(dev, pointer_property, NULL, NULL);
return Success;
}
////////////////////////////////////////////////////////////////////////////
static int device_on(LocalDevicePtr local)
{
struct MTouch *mt = local->private;
local->fd = xf86OpenSerial(local->options);
if (local->fd < 0) {
xf86Msg(X_ERROR, "multitouch: cannot open device\n");
return !Success;
}
if (open_mtouch(mt, local->fd)) {
xf86Msg(X_ERROR, "multitouch: cannot grab device\n");
return !Success;
}
xf86AddEnabledDevice(local);
return Success;
}
////////////////////////////////////////////////////////////////////////////
static int device_off(LocalDevicePtr local)
{
struct MTouch *mt = local->private;
xf86RemoveEnabledDevice(local);
if(close_mtouch(mt, local->fd)) {
xf86Msg(X_WARNING, "multitouch: cannot ungrab device\n");
}
xf86CloseSerial(local->fd);
return Success;
}
////////////////////////////////////////////////////////////////////////////
static int device_close(LocalDevicePtr local)
{
return Success;
}
////////////////////////////////////////////////////////////////////////////
static void handle_state(LocalDevicePtr local,
const struct State *os,
const struct State *ns)
{
const struct FingerState *fs, *p, *e = ns->finger + ns->nfinger;
int dx = 0, dy = 0, dn = 0, n = 0, i;
if (count_fingers(ns) == count_fingers(os)) {
for (p = ns->finger; p != e; p++) {
if (fs = find_finger(os, p->id)) {
dx += p->hw.position_x - fs->hw.position_x;
dy += p->hw.position_y - fs->hw.position_y;
dn++;
}
}
}
if (dx || dy) {
dx /= dn;
dy /= dn;
xf86PostMotionEvent(local->dev, 0, 0, 2, dx, dy);
//xf86Msg(X_INFO, "motion: %d %d\n", dx, dy);
n++;
}
for (i = 0; i < DIM_BUTTON; i++) {
if (GETBIT(ns->button, i) != GETBIT(os->button, i)) {
xf86PostButtonEvent(local->dev, FALSE,
i, GETBIT(ns->button, i),
0, 0);
//xf86Msg(X_INFO, "button: %d -> %d\n",
//i, GETBIT(ns->button, i));
n++;
}
}
//if (n)
//output_state(ns);
}
////////////////////////////////////////////////////////////////////////////
/* called for each full received packet from the touchpad */
static void read_input(LocalDevicePtr local)
{
struct MTouch *mt = local->private;
while (read_synchronized_event(mt, local->fd)) {
modify_state(&mt->ns, &mt->hw, &mt->caps);
handle_state(local, &mt->os, &mt->ns);
mt->os = mt->ns;
}
}
////////////////////////////////////////////////////////////////////////////
static Bool device_control(DeviceIntPtr dev, int mode)
{
LocalDevicePtr local = dev->public.devicePrivate;
switch (mode) {
case DEVICE_INIT:
xf86Msg(X_INFO, "device control: init\n");
return device_init(dev, local);
case DEVICE_ON:
xf86Msg(X_INFO, "device control: on\n");
return device_on(local);
case DEVICE_OFF:
xf86Msg(X_INFO, "device control: off\n");
return device_off(local);
case DEVICE_CLOSE:
xf86Msg(X_INFO, "device control: close\n");
return device_close(local);
default:
xf86Msg(X_INFO, "device control: default\n");
return BadValue;
}
}
////////////////////////////////////////////////////////////////////////////
static InputInfoPtr preinit(InputDriverPtr drv, IDevPtr dev, int flags)
{
struct MTouch *mt;
InputInfoPtr local = xf86AllocateInput(drv, 0);
if (!local)
goto error;
mt = xcalloc(1, sizeof(struct MTouch));
if (!mt)
goto error;
local->name = dev->identifier;
local->type_name = XI_TOUCHPAD;
local->device_control = device_control;
local->read_input = read_input;
local->private = mt;
local->flags = XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS;
local->conf_idev = dev;
xf86CollectInputOptions(local, NULL, NULL);
//xf86OptionListReport(local->options);
xf86ProcessCommonOptions(local, local->options);
local->flags |= XI86_CONFIGURED;
error:
return local;
}
static void uninit(InputDriverPtr drv, InputInfoPtr local, int flags)
{
xfree(local->private);
xf86DeleteInput(local, 0);
}
////////////////////////////////////////////////////////////////////////////
static InputDriverRec MULTITOUCH = {
1,
"multitouch",
NULL,
preinit,
uninit,
NULL,
0
};
static XF86ModuleVersionInfo VERSION = {
"multitouch",
MODULEVENDORSTRING,
MODINFOSTRING1,
MODINFOSTRING2,
XORG_VERSION_CURRENT,
0, 1, 0,
ABI_CLASS_XINPUT,
ABI_XINPUT_VERSION,
MOD_CLASS_XINPUT,
{0, 0, 0, 0}
};
static pointer setup(pointer module, pointer options, int *errmaj, int *errmin)
{
xf86AddInputDriver(&MULTITOUCH, module, 0);
return module;
}
XF86ModuleData multitouchModuleData = {&VERSION, &setup, NULL };
////////////////////////////////////////////////////////////////////////////
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