From 4b5c09297f11b2612a9072fc05a244fbc2c0ddc0 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Mon, 17 Nov 2003 21:09:45 +0000 Subject: cleaned up code substantially; got everything working; made help patches svn path=/trunk/externals/hcs/; revision=1192 --- linuxmouse.c | 471 +++++++++++++++++++++++++++-------------------------------- 1 file changed, 215 insertions(+), 256 deletions(-) (limited to 'linuxmouse.c') diff --git a/linuxmouse.c b/linuxmouse.c index da7147e..568f2ff 100644 --- a/linuxmouse.c +++ b/linuxmouse.c @@ -3,7 +3,7 @@ #define LINUXMOUSE_DEVICE "/dev/input/event0" #define LINUXMOUSE_AXES 3 -static char *version = "$Revision: 1.2 $"; +static char *version = "$Revision: 1.3 $"; /*------------------------------------------------------------------------------ * CLASS DEF @@ -13,7 +13,7 @@ static t_class *linuxmouse_class; typedef struct _linuxmouse { t_object x_obj; t_int x_fd; - t_symbol* x_devname; + t_symbol *x_devname; int read_ok; int started; struct input_event x_input_event; @@ -22,282 +22,241 @@ typedef struct _linuxmouse { t_outlet *x_button_val_out; unsigned char x_buttons; unsigned char x_axes; -}t_linuxmouse; +} t_linuxmouse; /*------------------------------------------------------------------------------ * IMPLEMENTATION */ -//DONE -static int linuxmouse_close(t_linuxmouse *x) -{ - DEBUG(post("linuxmouse_close");) - - if (x->x_fd <0) return 0; - - close (x->x_fd); - - return 1; +/* Actions */ +void linuxmouse_stop(t_linuxmouse* x) { + DEBUG(post("linuxmouse_stop");); + + if (x->x_fd >= 0 && x->started) { + sys_rmpollfn(x->x_fd); + post("[linuxmouse] stopped"); + x->started = 0; + } } -//DONE -static int linuxmouse_open(t_linuxmouse *x,t_symbol* s) -{ - int eventType, eventCode; - unsigned long bitmask[EV_MAX][NBITS(KEY_MAX)]; - char devicename[256] = "Unknown"; - DEBUG(post("linuxmouse_open");) - - linuxmouse_close(x); - - /* set obj device name to parameter - * otherwise set to default - */ - if (s != &s_) - x->x_devname = s; - else { - post("You need to set a input device (i.e /dev/input/event0)"); - } - - /* open device */ - if (x->x_devname) { - post("opening ..."); - /* open the linuxmouse device read-only, non-exclusive */ - x->x_fd = open (x->x_devname->s_name, O_RDONLY | O_NONBLOCK); - if (x->x_fd >= 0 ) post("done"); - else post("failed"); - } - else { - return 1; - } - - /* test if device open */ - if (x->x_fd >= 0) - post("%s opened",x->x_devname->s_name); - else { - post("unable to open %s",x->x_devname->s_name); - x->x_fd = -1; - return 0; - } - - /* read input_events from the LINUXMOUSE_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",devicename); - - /* get bitmask representing supported events (axes, buttons, etc.) */ - memset(bitmask, 0, sizeof(bitmask)); - ioctl(x->x_fd, EVIOCGBIT(0, EV_MAX), bitmask[0]); - post("Supported events:"); - - x->x_axes = 0; - x->x_buttons = 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]); +static int linuxmouse_close(t_linuxmouse *x) { + DEBUG(post("linuxmouse_close");); - /* 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] : "?") : "?"); - - if ( eventType == EV_KEY ) - x->x_buttons++; - else if ( eventType == EV_REL ) - x->x_axes++; +/* just to be safe, stop it first */ + linuxmouse_stop(x); + + if (x->x_fd < 0) { + return 0; + } + else { + close (x->x_fd); + post ("[linuxmouse] closed %s",x->x_devname->s_name); + return 1; } - } - } - - post ("\nUsing %d axes and %d buttons.", x->x_axes, x->x_buttons); - 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"); - - return 1; -} - - - -static int linuxmouse_read(t_linuxmouse *x,int fd) -{ - int readBytes; - int axis_num = 0; - t_float button_num = 0; - - if (x->x_fd < 0) return 0; - if (x->read_ok) { - readBytes = read(x->x_fd, &(x->x_input_event), sizeof(struct input_event)); - DEBUG(post("reading %d",readBytes);) - if ( readBytes < 0 ) { - post("linuxmouse: read failed"); - x->read_ok = 0; - return 0; - } - } - if ( x->x_input_event.type == EV_KEY ) { - /* key/button event type */ - switch ( x->x_input_event.code ) { - case BTN_LEFT: - button_num = 0; - break; - case BTN_RIGHT: - button_num = 1; - break; - case BTN_MIDDLE: - button_num = 2; - break; - case BTN_SIDE: - button_num = 3; - break; - case BTN_EXTRA: - button_num = 4; - break; - case BTN_FORWARD: - button_num = 5; - break; - case BTN_BACK: - button_num = 6; - break; - } - outlet_float (x->x_button_val_out, x->x_input_event.value); - outlet_float (x->x_button_num_out, button_num); - } - else if ( x->x_input_event.type == EV_REL ) { - /* Relative Axes Event Type */ - switch ( x->x_input_event.code ) { - case REL_X: - axis_num = 0; - break; - case REL_Y: - axis_num = 1; - break; - case REL_WHEEL: - axis_num = 2; - break; - } - outlet_float (x->x_axis_out[axis_num], (int)x->x_input_event.value); - } - - return 1; } - - -/* Actions */ - -static void linuxmouse_bang(t_linuxmouse* x) -{ - DEBUG(post("linuxmouse_bang");) - +static int linuxmouse_open(t_linuxmouse *x, t_symbol *s) { + int eventType, eventCode; + unsigned long bitmask[EV_MAX][NBITS(KEY_MAX)]; + char devicename[256] = "Unknown"; + + DEBUG(post("linuxmouse_open");); + + linuxmouse_close(x); + +/* For some reason, not initializing x->x_devname causes a seg fault */ +/* on this object, but it works fine on [linuxevent] */ + t_symbol *temp = malloc(20); + temp->s_name = "/dev/input/event0"; + x->x_devname = temp; + + /* set obj device name to parameter + * otherwise set to default + */ + if (s != &s_) x->x_devname = s; + + /* 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("[linuxmouse] open %s failed",x->x_devname->s_name); + x->x_fd = -1; + return 0; + } + } else { + post("[linuxmouse] no device set: %s",x->x_devname->s_name); + return 1; + } + + +/* read input_events from the LINUXMOUSE_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); + post("\nSupported events:"); + + /* get bitmask representing supported events (axes, buttons, etc.) */ + memset(bitmask, 0, sizeof(bitmask)); + ioctl(x->x_fd, EVIOCGBIT(0, EV_MAX), bitmask[0]); + + x->x_axes = 0; + x->x_buttons = 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] : "?") : "?"); + + if ( eventType == EV_KEY ) + x->x_buttons++; + else if ( eventType == EV_REL ) + x->x_axes++; + } + } + } + } + + post ("\nUsing %d axes and %d buttons.", x->x_axes, x->x_buttons); + 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"); + + return 1; } -static void linuxmouse_float(t_linuxmouse* x) -{ - DEBUG(post("linuxmouse_float");) - +static int linuxmouse_read(t_linuxmouse *x,int fd) { + int axis_num = 0; + t_float button_num = 0; + + if (x->x_fd < 0) return 0; + + while (read (x->x_fd, &(x->x_input_event), sizeof(struct input_event)) > -1) { + if ( x->x_input_event.type == EV_REL ) { + /* Relative Axes Event Type */ + switch ( x->x_input_event.code ) { + case REL_X: + axis_num = 0; + break; + case REL_Y: + axis_num = 1; + break; + case REL_WHEEL: + axis_num = 2; + break; + } + outlet_float (x->x_axis_out[axis_num], (int)x->x_input_event.value); + } + else if ( x->x_input_event.type == EV_KEY ) { + /* key/button event type */ + switch ( x->x_input_event.code ) { + case BTN_LEFT: + button_num = 0; + break; + case BTN_RIGHT: + button_num = 1; + break; + case BTN_MIDDLE: + button_num = 2; + break; + case BTN_SIDE: + button_num = 3; + break; + case BTN_EXTRA: + button_num = 4; + break; + case BTN_FORWARD: + button_num = 5; + break; + case BTN_BACK: + button_num = 6; + break; + } + outlet_float (x->x_button_val_out, x->x_input_event.value); + outlet_float (x->x_button_num_out, button_num); + } + } + + return 1; } -// DONE -void linuxmouse_start(t_linuxmouse* x) -{ - DEBUG(post("linuxmouse_start");) - - if (x->x_fd >= 0 && !x->started) { - sys_addpollfn(x->x_fd, (t_fdpollfn)linuxmouse_read, x); - post("linuxmouse: start"); - x->started = 1; - } -} +void linuxmouse_start(t_linuxmouse* x) { + DEBUG(post("linuxmouse_start");); - -// DONE -void linuxmouse_stop(t_linuxmouse* x) -{ - DEBUG(post("linuxmouse_stop");) - - if (x->x_fd >= 0 && x->started) { - sys_rmpollfn(x->x_fd); - post("linuxmouse: stop"); - x->started = 0; - } + if (x->x_fd >= 0 && !x->started) { + sys_addpollfn(x->x_fd, (t_fdpollfn)linuxmouse_read, x); + post("[linuxmouse] started"); + x->started = 1; + } else { + post("You need to set a input device (i.e /dev/input/event0)"); + } } -/* Misc setup functions */ - - -static void linuxmouse_free(t_linuxmouse* x) -{ - DEBUG(post("linuxmouse_free");) +/* setup functions */ +static void linuxmouse_free(t_linuxmouse* x) { + DEBUG(post("linuxmouse_free");); - if (x->x_fd < 0) return; - - linuxmouse_stop(x); - - close (x->x_fd); + if (x->x_fd < 0) return; + linuxmouse_stop(x); + close (x->x_fd); } -static void *linuxmouse_new(t_symbol *s) -{ - int i; - t_linuxmouse *x = (t_linuxmouse *)pd_new(linuxmouse_class); - - DEBUG(post("linuxmouse_new");) - - /* init vars */ - x->x_fd = -1; - x->read_ok = 1; - x->started = 0; - - /* create outlets for each axis */ - for (i = 0; i < LINUXMOUSE_AXES; i++) - x->x_axis_out[i] = outlet_new(&x->x_obj, &s_float); - - /* create outlets for buttons */ - x->x_button_num_out = outlet_new(&x->x_obj, &s_float); - x->x_button_val_out = outlet_new(&x->x_obj, &s_float); - - if (s != &s_) - x->x_devname = s; - - /* Open the device and save settings */ - - if (!linuxmouse_open(x,s)) return x; - - return (x); +static void *linuxmouse_new(t_symbol *s) { + int i; + t_linuxmouse *x = (t_linuxmouse *)pd_new(linuxmouse_class); + + DEBUG(post("linuxmouse_new");); + + post("[linuxmouse] %s, written by Hans-Christoph Steiner ",version); + + /* init vars */ + x->x_fd = -1; + x->read_ok = 1; + x->started = 0; + + /* create outlets for each axis */ + for (i = 0; i < LINUXMOUSE_AXES; i++) + x->x_axis_out[i] = outlet_new(&x->x_obj, &s_float); + + /* create outlets for buttons */ + x->x_button_num_out = outlet_new(&x->x_obj, &s_float); + x->x_button_val_out = outlet_new(&x->x_obj, &s_float); + + if (!linuxmouse_open(x,s)) return x; + + return (x); } - -void linuxmouse_setup(void) -{ - DEBUG(post("linuxmouse_setup");) - linuxmouse_class = class_new(gensym("linuxmouse"), - (t_newmethod)linuxmouse_new, - (t_method)linuxmouse_free, - sizeof(t_linuxmouse),0,A_DEFSYM,0); - - /* add inlet datatype methods */ - class_addfloat(linuxmouse_class,(t_method) linuxmouse_float); - class_addbang(linuxmouse_class,(t_method) linuxmouse_bang); - - /* add inlet message methods */ - class_addmethod(linuxmouse_class, (t_method) linuxmouse_open,gensym("open"),A_DEFSYM); - class_addmethod(linuxmouse_class,(t_method) linuxmouse_close,gensym("close"),0); - class_addmethod(linuxmouse_class,(t_method) linuxmouse_start,gensym("start"),0); - class_addmethod(linuxmouse_class,(t_method) linuxmouse_stop,gensym("stop"),0); - +void linuxmouse_setup(void) { + DEBUG(post("linuxmouse_setup");); + linuxmouse_class = class_new(gensym("linuxmouse"), + (t_newmethod)linuxmouse_new, + (t_method)linuxmouse_free, + sizeof(t_linuxmouse), 0, A_DEFSYM, 0); + + /* add inlet message methods */ + class_addmethod(linuxmouse_class,(t_method) linuxmouse_open,gensym("open"),A_DEFSYM,0); + class_addmethod(linuxmouse_class,(t_method) linuxmouse_close,gensym("close"),0); + class_addmethod(linuxmouse_class,(t_method) linuxmouse_start,gensym("start"),0); + class_addmethod(linuxmouse_class,(t_method) linuxmouse_stop,gensym("stop"),0); + class_addmethod(linuxmouse_class,(t_method) linuxmouse_start,gensym("poll"),0); + class_addmethod(linuxmouse_class,(t_method) linuxmouse_stop,gensym("nopoll"),0); } -- cgit v1.2.1