From 6b2dfe14ffb4b32cbceab83845204ec0d944dbf1 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Wed, 9 Aug 2006 04:12:32 +0000 Subject: cleaned up buildsrc and unfiltered sections and turned them into libdirs; made 'pan' libdir and cleaned up source dir for easy makefile install rules; created 'deprecated' libdir and moved cruft there svn path=/trunk/; revision=5529 --- externals/deprecated/linuxevent.c | 285 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 285 insertions(+) create mode 100644 externals/deprecated/linuxevent.c (limited to 'externals/deprecated/linuxevent.c') diff --git a/externals/deprecated/linuxevent.c b/externals/deprecated/linuxevent.c new file mode 100644 index 00000000..a976dd04 --- /dev/null +++ b/externals/deprecated/linuxevent.c @@ -0,0 +1,285 @@ +#include + +#include "linuxhid.h" + +#define LINUXEVENT_DEVICE "/dev/input/event0" + +static char *version = "$Revision: 1.1 $"; + +/*------------------------------------------------------------------------------ + * CLASS DEF + */ +static t_class *linuxevent_class; + +typedef struct _linuxevent { + t_object x_obj; + t_int x_fd; + t_symbol *x_devname; + t_clock *x_clock; + int x_read_ok; + int x_started; + int x_delay; +#ifdef __gnu_linux__ + struct input_event x_input_event; +#endif + t_outlet *x_input_event_time_outlet; + t_outlet *x_input_event_type_outlet; + t_outlet *x_input_event_code_outlet; + t_outlet *x_input_event_value_outlet; +}t_linuxevent; + +/*------------------------------------------------------------------------------ + * IMPLEMENTATION + */ + +void linuxevent_stop(t_linuxevent* x) { + DEBUG(post("linuxevent_stop");); + + if (x->x_fd >= 0 && x->x_started) { + clock_unset(x->x_clock); + post("linuxevent: polling stopped"); + x->x_started = 0; + } +} + +static int linuxevent_close(t_linuxevent *x) { + DEBUG(post("linuxevent_close");); + +/* just to be safe, stop it first */ + linuxevent_stop(x); + + if (x->x_fd <0) return 0; + close (x->x_fd); + post ("[linuxevent] closed %s",x->x_devname->s_name); + + return 1; +} + +static int linuxevent_open(t_linuxevent *x, t_symbol *s) { + int eventType, eventCode, buttons, rel_axes, abs_axes, ff; +#ifdef __gnu_linux__ + unsigned long bitmask[EV_MAX][NBITS(KEY_MAX)]; +#endif + char devicename[256] = "Unknown"; + DEBUG(post("linuxevent_open");) + + linuxevent_close(x); + + /* set obj device name to parameter + * otherwise set to default + */ + if (s != &s_) + x->x_devname = s; + +#ifdef __gnu_linux__ + /* open device */ + if (x->x_devname) { + /* open the device read-only, non-exclusive */ + x->x_fd = open (x->x_devname->s_name, O_RDONLY | O_NONBLOCK); + /* test if device open */ + if (x->x_fd < 0 ) { + post("[linuxevent] open %s failed",x->x_devname->s_name); + x->x_fd = -1; + return 0; + } + } else return 1; + + /* read input_events from the LINUXEVENT_DEVICE stream + * It seems that is just there to flush the event input buffer? + */ + while (read (x->x_fd, &(x->x_input_event), sizeof(struct input_event)) > -1); + + /* get name of device */ + ioctl(x->x_fd, EVIOCGNAME(sizeof(devicename)), devicename); + post ("Configuring %s on %s",devicename,x->x_devname->s_name); + + /* get bitmask representing supported events (axes, buttons, etc.) */ + memset(bitmask, 0, sizeof(bitmask)); + ioctl(x->x_fd, EVIOCGBIT(0, EV_MAX), bitmask[0]); + post("\nSupported events:"); + + rel_axes = 0; + abs_axes = 0; + buttons = 0; + ff = 0; + + /* cycle through all possible event types */ + for (eventType = 0; eventType < EV_MAX; eventType++) { + if (test_bit(eventType, bitmask[0])) { + post(" %s (type %d) ", events[eventType] ? events[eventType] : "?", eventType); + // post("Event type %d",eventType); + + /* get bitmask representing supported button types */ + ioctl(x->x_fd, EVIOCGBIT(eventType, KEY_MAX), bitmask[eventType]); + + /* cycle through all possible event codes (axes, keys, etc.) + * testing to see which are supported + */ + for (eventCode = 0; eventCode < KEY_MAX; eventCode++) + if (test_bit(eventCode, bitmask[eventType])) { + post(" Event code %d (%s)", eventCode, names[eventType] ? (names[eventType][eventCode] ? names[eventType][eventCode] : "?") : "?"); + + switch(eventType) { +// the API changed at some point... +#ifdef EV_RST + case EV_RST: +#else + case EV_SYN: +#endif + break; + case EV_KEY: + buttons++; + break; + case EV_REL: + rel_axes++; + break; + case EV_ABS: + abs_axes++; + break; + case EV_MSC: + break; + case EV_LED: + break; + case EV_SND: + break; + case EV_REP: + break; + case EV_FF: + ff++; + break; + } + } + } + } + + post ("\nUsing %d relative axes, %d absolute axes, and %d buttons.", rel_axes, abs_axes, buttons); + if (ff > 0) post ("Detected %d force feedback types",ff); + post ("\nWARNING * 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\n"); +#endif + + return 1; +} + +static int linuxevent_read(t_linuxevent *x,int fd) { + if (x->x_fd < 0) return 0; + +#ifdef __gnu_linux__ + while (read (x->x_fd, &(x->x_input_event), sizeof(struct input_event)) > -1) { + outlet_float (x->x_input_event_value_outlet, (int)x->x_input_event.value); + outlet_float (x->x_input_event_code_outlet, x->x_input_event.code); + outlet_float (x->x_input_event_type_outlet, x->x_input_event.type); + /* input_event.time is a timeval struct from */ + /* outlet_float (x->x_input_event_time_outlet, x->x_input_event.time); */ + } +#endif + + if (x->x_started) { + clock_delay(x->x_clock, x->x_delay); + } + + return 1; +} + +/* Actions */ +static void linuxevent_float(t_linuxevent* x) { + DEBUG(post("linuxevent_float");) + +} + +void linuxevent_delay(t_linuxevent* x, t_float f) { + DEBUG(post("linuxevent_DELAY %f",f);) + +/* if the user sets the delay less than zero, reset to default */ + if ( f > 0 ) { + x->x_delay = (int)f; + } else { + x->x_delay = DEFAULT_DELAY; + } +} + +void linuxevent_start(t_linuxevent* x) { + DEBUG(post("linuxevent_start");); + + if (x->x_fd >= 0 && !x->x_started) { + clock_delay(x->x_clock, DEFAULT_DELAY); + post("linuxevent: polling started"); + x->x_started = 1; + } else { + post("You need to set a input device (i.e /dev/input/event0)"); + } +} + +/* setup functions */ +static void linuxevent_free(t_linuxevent* x) { + DEBUG(post("linuxevent_free");) + + if (x->x_fd < 0) return; + + linuxevent_stop(x); + clock_free(x->x_clock); + close (x->x_fd); +} + +static void *linuxevent_new(t_symbol *s) { + int i; + t_linuxevent *x = (t_linuxevent *)pd_new(linuxevent_class); + + DEBUG(post("linuxevent_new");) + + post("[linuxevent] %s, written by Hans-Christoph Steiner ",version); +#ifndef __linux__ + post(" !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!"); + post(" This is a dummy, since this object only works with a Linux kernel!"); + post(" !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !! WARNING !!"); +#endif + + /* init vars */ + x->x_fd = -1; + x->x_read_ok = 1; + x->x_started = 0; + x->x_delay = DEFAULT_DELAY; + x->x_devname = gensym(LINUXEVENT_DEVICE); + + x->x_clock = clock_new(x, (t_method)linuxevent_read); + + /* create outlets for each axis */ + x->x_input_event_time_outlet = outlet_new(&x->x_obj, &s_float); + x->x_input_event_type_outlet = outlet_new(&x->x_obj, &s_float); + x->x_input_event_code_outlet = outlet_new(&x->x_obj, &s_float); + x->x_input_event_value_outlet = outlet_new(&x->x_obj, &s_float); + + /* set to the value from the object argument, if that exists */ + if (s != &s_) + x->x_devname = s; + + /* Open the device and save settings */ + + if (!linuxevent_open(x,s)) return x; + + return (x); +} + +void linuxevent_setup(void) { + DEBUG(post("linuxevent_setup");) + linuxevent_class = class_new(gensym("linuxevent"), + (t_newmethod)linuxevent_new, + (t_method)linuxevent_free, + sizeof(t_linuxevent),0,A_DEFSYM,0); + + /* add inlet datatype methods */ + class_addfloat(linuxevent_class,(t_method) linuxevent_float); + class_addbang(linuxevent_class,(t_method) linuxevent_read); + + /* add inlet message methods */ + class_addmethod(linuxevent_class,(t_method) linuxevent_delay,gensym("delay"),A_DEFFLOAT,0); + class_addmethod(linuxevent_class,(t_method) linuxevent_open,gensym("open"),A_DEFSYM,0); + class_addmethod(linuxevent_class,(t_method) linuxevent_close,gensym("close"),0); + class_addmethod(linuxevent_class,(t_method) linuxevent_start,gensym("start"),0); + class_addmethod(linuxevent_class,(t_method) linuxevent_start,gensym("poll"),0); + class_addmethod(linuxevent_class,(t_method) linuxevent_stop,gensym("stop"),0); + class_addmethod(linuxevent_class,(t_method) linuxevent_stop,gensym("nopoll"),0); +} + -- cgit v1.2.1