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/* ---------------------------------------------------------------------------- */
/* */
/* MacOS X object to use HIDs (Human Interface Devices) */
/* Written by Hans-Christoph Steiner <hans@at.or.at> */
/* */
/* Copyright (c) 2004 Hans-Christoph Steiner */
/* */
/* 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. */
/* */
/* See file LICENSE for further informations on licensing terms. */
/* */
/* 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. */
/* */
/* ---------------------------------------------------------------------------- */
#include "hid.h"
/*------------------------------------------------------------------------------
* LOCAL DEFINES
*/
//#define DEBUG(x)
#define DEBUG(x) x
#define DEFAULT_DELAY 5
/*------------------------------------------------------------------------------
* IMPLEMENTATION
*/
/* stop polling the device */
void hid_stop(t_hid* x)
{
DEBUG(post("hid_stop"););
if (x->x_started)
{
clock_unset(x->x_clock);
post("[hid] polling stopped");
x->x_started = 0;
}
}
/* close the device */
t_int hid_close(t_hid *x)
{
DEBUG(post("hid_close"););
/* just to be safe, stop it first */
hid_stop(x);
post("[hid] closed device number %d",x->x_device_number);
return (hid_close_device(x));
}
t_int hid_open(t_hid *x, t_float f)
{
DEBUG(post("hid_open"););
hid_close(x);
/* set obj device name to parameter
* otherwise set to default
*/
if (f > 0)
x->x_device_number = f;
else
x->x_device_number = 0;
if (hid_open_device(x,x->x_device_number))
{
error("[hid] can not open device %d",x->x_device_number);
post("\\================================ [hid] ================================/\n");
return (1);
}
post("\\================================ [hid] ================================/\n");
return (0);
}
t_int hid_read(t_hid *x,int fd)
{
hid_output_events(x);
if (x->x_started)
{
clock_delay(x->x_clock, x->x_delay);
}
return 1; /* why is this 1? */
}
/* Actions */
void hid_delay(t_hid* x, t_float f)
{
DEBUG(post("hid_DELAY %f",f);)
/* if the user sets the delay less than zero, reset to default */
if ( f > 0 )
{
x->x_delay = (t_int)f;
}
else
{
x->x_delay = DEFAULT_DELAY;
}
}
void hid_start(t_hid* x)
{
DEBUG(post("hid_start"););
if (!x->x_started)
{
clock_delay(x->x_clock, DEFAULT_DELAY);
post("hid: polling started");
x->x_started = 1;
}
}
static void hid_float(t_hid* x, t_floatarg f)
{
DEBUG(post("hid_float"););
if(f == 1)
hid_start(x);
else if(f == 0)
hid_stop(x);
}
/* setup functions */
static void hid_free(t_hid* x)
{
DEBUG(post("hid_free"););
hid_close(x);
clock_free(x->x_clock);
}
/* create a new instance of this class */
static void *hid_new(t_float f)
{
t_hid *x = (t_hid *)pd_new(hid_class);
DEBUG(post("hid_new"););
post("/================================ [hid] ================================\\");
post("[hid] %s, written by Hans-Christoph Steiner <hans@eds.org>",version);
#if !defined(__linux__) && !defined(__APPLE__)
error(" !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!");
error(" This is a dummy, since this object only works GNU/Linux and MacOS X!");
error(" !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!");
#endif
/* init vars */
x->x_read_ok = 1;
x->x_started = 0;
x->x_delay = DEFAULT_DELAY;
x->x_clock = clock_new(x, (t_method)hid_read);
/* create anything outlet used for HID data */
outlet_new(&x->x_obj, 0);
/* find and report the list of devices */
hid_devicelist_refresh(x);
/* Open the device and save settings. If there is an error, return the object
* anyway, so that the inlets and outlets are created, thus not breaking the
* patch. */
/* if (hid_open(x,f)) */
/* error("[hid] device %d did not open",(t_int)f); */
return (x);
}
void hid_setup(void)
{
DEBUG(post("hid_setup"););
hid_class = class_new(gensym("hid"),
(t_newmethod)hid_new,
(t_method)hid_free,
sizeof(t_hid),
CLASS_DEFAULT,
A_DEFFLOAT,0);
/* add inlet datatype methods */
class_addfloat(hid_class,(t_method) hid_float);
class_addbang(hid_class,(t_method) hid_read);
/* add inlet message methods */
class_addmethod(hid_class,(t_method) hid_delay,gensym("delay"),A_DEFFLOAT,0);
class_addmethod(hid_class,(t_method) hid_open,gensym("open"),A_DEFFLOAT,0);
class_addmethod(hid_class,(t_method) hid_devicelist_refresh,gensym("refresh"),0);
class_addmethod(hid_class,(t_method) hid_close,gensym("close"),0);
class_addmethod(hid_class,(t_method) hid_start,gensym("start"),0);
class_addmethod(hid_class,(t_method) hid_start,gensym("poll"),0);
class_addmethod(hid_class,(t_method) hid_stop,gensym("stop"),0);
class_addmethod(hid_class,(t_method) hid_stop,gensym("nopoll"),0);
}
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