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/*
* touchscreen handler
*
* Copyright (c) 2009 Openmoko Inc.
*
* Authors Daniel Mack <daniel@caiaq.de>
* Matt Hsu <matt_hsu@openmoko.org>
* Christopher Hall <hsw@openmoko.com>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <input.h>
#include <msg.h>
#include <wikilib.h>
#include <regs.h>
#include <ctp.h>
#include "samo.h"
#include "touchscreen.h"
static int x, y;
static bool pressed;
static unsigned long ticks;
static bool event_cached;
bool touchscreen_event_pending(void)
{
if (event_cached || CTP_get(&x, &y, &pressed, &ticks))
{
event_cached = true;
}
return event_cached;
}
bool touchscreen_get_event(struct wl_input_event *ev)
{
if (!event_cached && !CTP_get(&x, &y, &pressed, &ticks)) {
return false;
}
event_cached = false;
ev->type = WL_INPUT_EV_TYPE_TOUCH;
ev->touch_event.x = x >> 1;
ev->touch_event.y = y >> 1;
ev->touch_event.ticks = ticks;
ev->touch_event.value = pressed
? WL_INPUT_TOUCH_DOWN
: WL_INPUT_TOUCH_UP;
return true;
}
void touchscreen_init(void)
{
event_cached = false;
CTP_initialise();
}