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/*
* ifeel mouse object for Miller Puckette's Pure Data
* copyright 2003 Hans-Christoph Steiner <hans@eds.org>
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*
* based on ifeel_send.c from the linux iFeel driver:
* http://sourceforge.net/projects/tactile
*
* there is a difference in the naming schemes of the ifeel driver and this
* object. The ifeel driver uses strength, delay, and count. This object
* uses level, interval, and count.
*
* strength/level - the strength of the pulse (I am searching for a better word)
* delay/interval - the interval in between each pulse
* count - the total number of pulses to do
*/
#include "m_pd.h"
#include <unistd.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <time.h>
#include "ifeel.h"
#define DEBUG(x)
/*#define DEBUG(x) x */
#define IFEEL_DEVICE "/dev/input/ifeel0"
static t_class *ifeel_class;
typedef struct _ifeel {
t_object x_obj;
int x_fd;
struct ifeel_command x_ifeel_command;
} t_ifeel;
/******************************************************************************
support functions
******************************************************************************/
void ifeel_playcommand(t_ifeel *x) {
/* const struct timespec *requested_time; */
/* struct timespec *remaining; */
if (ioctl(x->x_fd, USB_IFEEL_BUZZ_IOCTL, &x->x_ifeel_command) < 0) {
post("x->x_fd: %d",x->x_fd);
post("level: %d interval: %d count: %d",x->x_ifeel_command.strength,x->x_ifeel_command.delay,x->x_ifeel_command.count);
post("ERROR %s", strerror(errno));
close(x->x_fd);
}
DEBUG(
post("level: %d interval: %d count: %d",x->x_ifeel_command.strength,x->x_ifeel_command.delay,x->x_ifeel_command.count);
post("");)
}
/******************************************************************************
input/control functions
******************************************************************************/
void ifeel_start(t_ifeel *x) {
DEBUG(post("ifeel_start");)
/*
* since ifeel_stop sets everything to zero, we need to
* read the inlets again to get current values
*/
ifeel_playcommand(x);
}
void ifeel_stop(t_ifeel *x) {
DEBUG(post("ifeel_stop");)
/*
* there is no 'stop' ioctl, so set everything to zero
* to achieve the same effect
*/
x->x_ifeel_command.strength = 0;
x->x_ifeel_command.delay = 0;
x->x_ifeel_command.count = 0;
ifeel_playcommand(x);
}
void ifeel_level(t_ifeel *x, t_floatarg level) {
DEBUG(post("ifeel_level");)
/*
* make sure its in the proper range
* this object takes floats 0-1
* the ifeel driver takes ints 0-255
*/
level = level * 255;
level = (level > 255 ? 255 : level);
level = (level < 0 ? 0 : level);
x->x_ifeel_command.strength = (unsigned int)level;
}
void ifeel_interval(t_ifeel *x, t_floatarg interval) {
DEBUG(post("ifeel_interval");)
interval = (interval < 0 ? 0 : interval);
x->x_ifeel_command.delay = (unsigned int)interval;
}
void ifeel_count(t_ifeel *x, t_floatarg count ) {
DEBUG(post("ifeel_count");)
count = (count < 0 ? 0 : count);
x->x_ifeel_command.count = (unsigned int)count;
}
static int ifeel_open(t_ifeel *x) {
return 1;
}
/******************************************************************************
init/free functions
******************************************************************************/
void ifeel_free(t_ifeel *x)
{
DEBUG(post("ifeel_free");)
/* stop effect */
ifeel_stop(x);
/* close device */
close(x->x_fd);
}
void *ifeel_new(t_symbol *device, t_floatarg level, t_floatarg interval, t_floatarg count) {
DEBUG(post("ifeel_new");)
t_ifeel *x = (t_ifeel *)pd_new(ifeel_class);
post("iFeel mouse, by Hans-Christoph Steiner <hans@eds.org>");
post("");
post ("WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING");
post ("This object is under development! The interface could change at anytime!");
post ("As I write cross-platform versions, the interface might have to change.");
post ("WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING");
post("");
/*
* init to zero so I can use the ifeel_* methods to set the
* struct with the argument values
*/
x->x_ifeel_command.strength = 0;
x->x_ifeel_command.delay = 0;
x->x_ifeel_command.count = 0;
inlet_new(&x->x_obj,
&x->x_obj.ob_pd,
gensym("float"),
gensym("interval"));
inlet_new(&x->x_obj,
&x->x_obj.ob_pd,
gensym("float"),
gensym("count"));
inlet_new(&x->x_obj,
&x->x_obj.ob_pd,
gensym("float"),
gensym("level"));
if (device != &s_) {
post("Using %s",device->s_name);
/* x->x_fd = open(IFEEL_DEVICE, O_RDWR); */
if ((x->x_fd = open((char *) device->s_name, O_RDWR | O_NONBLOCK, 0)) <= 0) {
printf("ERROR %s\n", strerror(errno));
return 0;
}
/* ifeel_level(x,level); */
/* ifeel_interval(x,interval); */
/* ifeel_count(x,count); */
}
else {
post("ifeel: You need to set an ifeel device (i.e /dev/input/ifeel0)");
}
return (void*)x;
}
void ifeel_setup(void)
{
DEBUG(post("ifeel_setup");)
ifeel_class = class_new(gensym("ifeel"),
(t_newmethod)ifeel_new,
(t_method)ifeel_free,
sizeof(t_ifeel),
CLASS_DEFAULT,
A_DEFSYMBOL,
A_DEFFLOAT,
A_DEFFLOAT,
A_DEFFLOAT,
0);
class_addbang(ifeel_class,ifeel_start);
class_addmethod(ifeel_class, (t_method)ifeel_start,gensym("start"),0);
class_addmethod(ifeel_class, (t_method)ifeel_stop,gensym("stop"),0);
class_addmethod(ifeel_class, (t_method)ifeel_level, gensym("level"), A_DEFFLOAT,0);
class_addmethod(ifeel_class, (t_method)ifeel_interval,gensym("interval"),A_DEFFLOAT,0);
class_addmethod(ifeel_class, (t_method)ifeel_count,gensym("count"),A_DEFFLOAT,0);
}
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