From c2fb523db6282d472fd1a032e1b834ee4f429b10 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Sat, 7 Jun 2003 15:02:59 +0000 Subject: eliminated updates on everything but the leftmost inlet, necessary because the ifeel.o kernel module crashes if the input is too fast; added help patch svn path=/trunk/externals/hcs/; revision=685 --- ifeel.c | 142 ++++++++++++++++++++++++++++++++++++++++------------------------ 1 file changed, 89 insertions(+), 53 deletions(-) (limited to 'ifeel.c') diff --git a/ifeel.c b/ifeel.c index e6a6aa9..2b13576 100644 --- a/ifeel.c +++ b/ifeel.c @@ -18,6 +18,13 @@ * 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" @@ -30,10 +37,15 @@ #include #include #include +#include #include "ifeel.h" +#define DEBUG(x) +/*#define DEBUG(x) x */ + + #define IFEEL_DEVICE "/dev/input/ifeel0" static t_class *ifeel_class; @@ -47,76 +59,96 @@ typedef struct _ifeel { /****************************************************************************** -general ff methods +support functions ******************************************************************************/ -void ifeel_start(t_ifeel *x) -{ - post("ifeel_start"); - +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) { - printf("ERROR %s\n", strerror(errno)); - } + 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("");) } -void ifeel_stop(t_ifeel *x) -{ - post("ifeel_stop"); + +/****************************************************************************** +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; - if (ioctl(x->x_fd, USB_IFEEL_BUZZ_IOCTL, &x->x_ifeel_command) < 0) { - printf("ERROR %s\n", strerror(errno)); - } + + ifeel_playcommand(x); } -void ifeel_level(t_ifeel *x, t_floatarg level) -{ - post("ifeel_level"); +void ifeel_level(t_ifeel *x, t_floatarg level) { + DEBUG(post("ifeel_level");) - /* make sure its in the proper range */ + /* + * 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; - - if (ioctl(x->x_fd, USB_IFEEL_BUZZ_IOCTL, &x->x_ifeel_command) < 0) { - printf("ERROR %s\n", strerror(errno)); - } - } -void ifeel_interval(t_ifeel *x, t_floatarg interval) -{ - post("ifeel_interval"); +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; - - if (ioctl(x->x_fd, USB_IFEEL_BUZZ_IOCTL, &x->x_ifeel_command) < 0) { - printf("ERROR %s\n", strerror(errno)); - } } -void ifeel_count(t_ifeel *x, t_floatarg count ) -{ - post("ifeel_count"); +void ifeel_count(t_ifeel *x, t_floatarg count ) { + DEBUG(post("ifeel_count");) - count = (count < 0 ? 0 : count); + count = (count < 0 ? 0 : count); x->x_ifeel_command.count = (unsigned int)count; +} - if (ioctl(x->x_fd, USB_IFEEL_BUZZ_IOCTL, &x->x_ifeel_command) < 0) { - printf("ERROR %s\n", strerror(errno)); - } +static int ifeel_open(t_ifeel *x) { + return 1; } +/****************************************************************************** + init/free functions +******************************************************************************/ + void ifeel_free(t_ifeel *x) { - post("ifeel_free"); + DEBUG(post("ifeel_free");) /* stop effect */ ifeel_stop(x); @@ -125,12 +157,19 @@ void ifeel_free(t_ifeel *x) close(x->x_fd); } -void *ifeel_new(t_symbol *device, t_floatarg level, t_floatarg interval, t_floatarg count) -{ - post("ifeel_new"); - +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 "); + 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 @@ -142,7 +181,7 @@ void *ifeel_new(t_symbol *device, t_floatarg level, t_floatarg interval, t_float inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), - gensym("direction")); + gensym("interval")); inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), @@ -156,15 +195,16 @@ void *ifeel_new(t_symbol *device, t_floatarg level, t_floatarg interval, t_float post("Using %s",device->s_name); /* x->x_fd = open(IFEEL_DEVICE, O_RDWR); */ - /* x->x_fd = open((char *) device->s_name, 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); + +/* 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)"); } @@ -172,13 +212,9 @@ void *ifeel_new(t_symbol *device, t_floatarg level, t_floatarg interval, t_float return (void*)x; } -/****************************************************************************** - initialisation functions -******************************************************************************/ - void ifeel_setup(void) { - post("ifeel_setup"); + DEBUG(post("ifeel_setup");) ifeel_class = class_new(gensym("ifeel"), (t_newmethod)ifeel_new, @@ -193,7 +229,7 @@ void ifeel_setup(void) class_addbang(ifeel_class,ifeel_start); - class_addmethod(ifeel_class, (t_method)ifeel_stop,gensym("start"),0); + 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); -- cgit v1.2.1