aboutsummaryrefslogtreecommitdiff
path: root/linuxevent.c
diff options
context:
space:
mode:
Diffstat (limited to 'linuxevent.c')
-rw-r--r--linuxevent.c285
1 files changed, 0 insertions, 285 deletions
diff --git a/linuxevent.c b/linuxevent.c
deleted file mode 100644
index eabb418..0000000
--- a/linuxevent.c
+++ /dev/null
@@ -1,285 +0,0 @@
-#include <m_pd.h>
-
-#include "linuxhid.h"
-
-#define LINUXEVENT_DEVICE "/dev/input/event0"
-
-static char *version = "$Revision: 1.9 $";
-
-/*------------------------------------------------------------------------------
- * 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 <sys/time.h> */
- /* 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 <hans@eds.org>",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);
-}
-
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-02 21:01:15 +0000