contiki/cpu/6502/ctk/ctk-mouse.c

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/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
* Author: Oliver Schmidt <ol.sc@web.de>
*
* $Id: ctk-mouse.c,v 1.3 2009/10/18 09:33:08 oliverschmidt Exp $
*/
#include <mouse.h>
#include <stdlib.h>
#include <modload.h>
#include "cfs/cfs.h"
#include "ctk.h"
#include "ctk-mouse.h"
#if CTK_CONF_MOUSE_SUPPORT
static struct mouse_pos pos;
static u8_t okay;
/*-----------------------------------------------------------------------------------*/
void
ctk_mouse_init(void)
{
struct mod_ctrl module_control = {cfs_read};
module_control.callerdata = cfs_open(mouse_stddrv, CFS_READ);
okay = module_control.callerdata >= 0;
if(okay) {
okay = mod_load(&module_control) == MLOAD_OK;
if(okay) {
okay = mouse_install(&mouse_def_callbacks, module_control.module) == MOUSE_ERR_OK;
if(okay) {
atexit((void (*)(void))mouse_uninstall);
} else {
mod_free(module_control.module);
}
}
cfs_close(module_control.callerdata);
}
}
/*-----------------------------------------------------------------------------------*/
unsigned short
ctk_mouse_x(void)
{
if(okay) {
mouse_pos(&pos);
}
return pos.x;
}
/*-----------------------------------------------------------------------------------*/
unsigned short
ctk_mouse_y(void)
{
if(okay) {
mouse_pos(&pos);
}
return pos.y;
}
/*-----------------------------------------------------------------------------------*/
unsigned char
ctk_mouse_button(void)
{
if(okay) {
return mouse_buttons();
}
return 0;
}
/*-----------------------------------------------------------------------------------*/
unsigned char
ctk_mouse_xtoc(unsigned short x)
{
return MOUSE_CONF_XTOC(x);
}
/*-----------------------------------------------------------------------------------*/
unsigned char
ctk_mouse_ytoc(unsigned short y)
{
return MOUSE_CONF_YTOC(y);
}
/*-----------------------------------------------------------------------------------*/
void
ctk_mouse_hide(void)
{
if(okay) {
mouse_hide();
}
}
/*-----------------------------------------------------------------------------------*/
void
ctk_mouse_show(void)
{
if(okay) {
mouse_show();
}
}
/*-----------------------------------------------------------------------------------*/
#endif /* CTK_CONF_MOUSE_SUPPORT */