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/***************************************************************************
*
* Multitouch X driver
* Copyright (C) 2008 Henrik Rydberg <rydberg@euromail.se>
*
* 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 "hwdata.h"
void init_hwdata(struct HWData *hw)
{
memset(hw, 0, sizeof(struct HWData));
}
static void set_value(struct HWData *hw, int code, int value)
{
if (hw->nread < DIM_FINGER) {
(&hw->finger[hw->nread].touch_major)[code] = value;
SETBIT(hw->mread[hw->nread], code);
}
}
static void accept_finger(struct HWData *hw)
{
if (hw->nread < DIM_FINGER &&
GETBIT(hw->mread[hw->nread], BIT_MT_POSITION_X) &&
GETBIT(hw->mread[hw->nread], BIT_MT_POSITION_Y)) {
hw->mask[hw->nread] = hw->mread[hw->nread];
hw->nfinger = ++hw->nread;
}
if (hw->nread < DIM_FINGER)
hw->mread[hw->nread] = 0;
}
static void accept_packet(struct HWData *hw, const struct timeval* tv)
{
static const mstime_t ms = 1000;
hw->nread = 0;
hw->mread[hw->nread] = 0;
hw->evtime = tv->tv_usec / ms + tv->tv_sec * ms;
}
int read_hwdata(struct HWData *hw, const struct input_event* ev)
{
switch (ev->type) {
case EV_SYN:
switch (ev->code) {
case SYN_REPORT:
accept_packet(hw, &ev->time);
return 1;
case SYN_MT_REPORT:
accept_finger(hw);
break;
}
break;
case EV_KEY:
switch (ev->code) {
case BTN_LEFT:
if (ev->value)
SETBIT(hw->button, MT_BUTTON_LEFT);
else
CLEARBIT(hw->button, MT_BUTTON_LEFT);
break;
case BTN_MIDDLE:
if (ev->value)
SETBIT(hw->button, MT_BUTTON_MIDDLE);
else
CLEARBIT(hw->button, MT_BUTTON_MIDDLE);
break;
case BTN_RIGHT:
if (ev->value)
SETBIT(hw->button, MT_BUTTON_RIGHT);
else
CLEARBIT(hw->button, MT_BUTTON_RIGHT);
break;
}
break;
case EV_ABS:
switch (ev->code) {
case ABS_MT_TOUCH_MAJOR:
set_value(hw, BIT_MT_TOUCH_MAJOR, ev->value);
break;
case ABS_MT_TOUCH_MINOR:
set_value(hw, BIT_MT_TOUCH_MINOR, ev->value);
break;
case ABS_MT_WIDTH_MAJOR:
set_value(hw, BIT_MT_WIDTH_MAJOR, ev->value);
break;
case ABS_MT_WIDTH_MINOR:
set_value(hw, BIT_MT_WIDTH_MINOR, ev->value);
break;
case ABS_MT_ORIENTATION:
set_value(hw, BIT_MT_ORIENTATION, ev->value);
break;
case ABS_MT_PRESSURE:
set_value(hw, BIT_MT_PRESSURE, ev->value);
break;
case ABS_MT_POSITION_X:
set_value(hw, BIT_MT_POSITION_X, ev->value);
break;
case ABS_MT_POSITION_Y:
set_value(hw, BIT_MT_POSITION_Y, ev->value);
break;
}
break;
}
return 0;
}
void output_hwdata(const struct HWData *hw)
{
}
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