From 3de36ab48806044ec6d6ca37d10a69ec1c4fb5af Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Fri, 22 Oct 2004 02:34:32 +0000 Subject: cleaned up includes svn path=/trunk/externals/hcs/; revision=2139 --- linuxevent.c | 565 ++++++++++++++++++++++++++++++----------------------------- 1 file changed, 285 insertions(+), 280 deletions(-) (limited to 'linuxevent.c') diff --git a/linuxevent.c b/linuxevent.c index 40fa40c..eabb418 100644 --- a/linuxevent.c +++ b/linuxevent.c @@ -1,280 +1,285 @@ -#include "linuxhid.h" - -#define LINUXEVENT_DEVICE "/dev/input/event0" - -static char *version = "$Revision: 1.8 $"; - -/*------------------------------------------------------------------------------ - * 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) { -#ifdef EV_RST - case EV_RST: - break; -#endif - 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); -} - +#include + +#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 */ + /* 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