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/* (C) Guenter Geiger <geiger@epy.co.at> */
#include <m_imp.h>
#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif
#include <linux/input.h>
#include <sys/stat.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/fcntl.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <termios.h>
#define DEBUG(x)
/*#define DEBUG(x) x */
#define RAWJOYSTICK_DEVICE "/dev/input/event0"
// scaling factor for output
#define DEF_SCALE 1
// delay/refresh time in milliseconds
#define DEF_DELTIME 5
#define RAWJOYSTICK_AXES 6
#define RAWJOYSTICK_BUTTONS 9
/* from <linux/input.h>
// button types
#define BTN_LEFT 0x110
#define BTN_RIGHT 0x111
#define BTN_MIDDLE 0x112
#define BTN_SIDE 0x113
#define BTN_EXTRA 0x114
#define BTN_FORWARD 0x115
#define BTN_BACK 0x116
// axes
#define REL_X 0x00
#define REL_Y 0x01
#define REL_WHEEL 0x08
*/
/*------------------------------------------------------------------------------
* from evtest.c from the ff-utils package
*/
#define BITS_PER_LONG (sizeof(long) * 8)
#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
#define OFF(x) ((x)%BITS_PER_LONG)
#define BIT(x) (1UL<<OFF(x))
#define LONG(x) ((x)/BITS_PER_LONG)
#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
char *events[EV_MAX + 1] = { "Reset", "Key", "Relative", "Absolute", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, "LED", "Sound", NULL, "Repeat", "ForceFeedback", NULL, "ForceFeedbackStatus"};
char *keys[KEY_MAX + 1] = { "Reserved", "Esc", "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "Minus", "Equal", "Backspace",
"Tab", "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P", "LeftBrace", "RightBrace", "Enter", "LeftControl", "A", "S", "D", "F", "G",
"H", "J", "K", "L", "Semicolon", "Apostrophe", "Grave", "LeftShift", "BackSlash", "Z", "X", "C", "V", "B", "N", "M", "Comma", "Dot",
"Slash", "RightShift", "KPAsterisk", "LeftAlt", "Space", "CapsLock", "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10",
"NumLock", "ScrollLock", "KP7", "KP8", "KP9", "KPMinus", "KP4", "KP5", "KP6", "KPPlus", "KP1", "KP2", "KP3", "KP0", "KPDot", "103rd",
"F13", "102nd", "F11", "F12", "F14", "F15", "F16", "F17", "F18", "F19", "F20", "KPEnter", "RightCtrl", "KPSlash", "SysRq",
"RightAlt", "LineFeed", "Home", "Up", "PageUp", "Left", "Right", "End", "Down", "PageDown", "Insert", "Delete", "Macro", "Mute",
"VolumeDown", "VolumeUp", "Power", "KPEqual", "KPPlusMinus", "Pause", "F21", "F22", "F23", "F24", "KPComma", "LeftMeta", "RightMeta",
"Compose", "Stop", "Again", "Props", "Undo", "Front", "Copy", "Open", "Paste", "Find", "Cut", "Help", "Menu", "Calc", "Setup",
"Sleep", "WakeUp", "File", "SendFile", "DeleteFile", "X-fer", "Prog1", "Prog2", "WWW", "MSDOS", "Coffee", "Direction",
"CycleWindows", "Mail", "Bookmarks", "Computer", "Back", "Forward", "CloseCD", "EjectCD", "EjectCloseCD", "NextSong", "PlayPause",
"PreviousSong", "StopCD", "Record", "Rewind", "Phone", "ISOKey", "Config", "HomePage", "Refresh", "Exit", "Move", "Edit", "ScrollUp",
"ScrollDown", "KPLeftParenthesis", "KPRightParenthesis",
"International1", "International2", "International3", "International4", "International5",
"International6", "International7", "International8", "International9",
"Language1", "Language2", "Language3", "Language4", "Language5", "Language6", "Language7", "Language8", "Language9",
NULL,
"PlayCD", "PauseCD", "Prog3", "Prog4", "Suspend", "Close",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"Btn0", "Btn1", "Btn2", "Btn3", "Btn4", "Btn5", "Btn6", "Btn7", "Btn8", "Btn9",
NULL, NULL, NULL, NULL, NULL, NULL,
"LeftBtn", "RightBtn", "MiddleBtn", "SideBtn", "ExtraBtn", "ForwardBtn", "BackBtn",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"Trigger", "ThumbBtn", "ThumbBtn2", "TopBtn", "TopBtn2", "PinkieBtn",
"BaseBtn", "BaseBtn2", "BaseBtn3", "BaseBtn4", "BaseBtn5", "BaseBtn6",
NULL, NULL, NULL, "BtnDead",
"BtnA", "BtnB", "BtnC", "BtnX", "BtnY", "BtnZ", "BtnTL", "BtnTR", "BtnTL2", "BtnTR2", "BtnSelect", "BtnStart", "BtnMode",
"BtnThumbL", "BtnThumbR", NULL,
"ToolPen", "ToolRubber", "ToolBrush", "ToolPencil", "ToolAirbrush", "ToolFinger", "ToolMouse", "ToolLens", NULL, NULL,
"Touch", "Stylus", "Stylus2" };
char *absval[5] = { "Value", "Min ", "Max ", "Fuzz ", "Flat " };
char *relatives[REL_MAX + 1] = { "X", "Y", "Z", NULL, NULL, NULL, "HWheel", "Dial", "Wheel" };
char *absolutes[ABS_MAX + 1] = { "X", "Y", "Z", "Rx", "Ry", "Rz", "Throttle", "Rudder", "Wheel", "Gas", "Brake",
NULL, NULL, NULL, NULL, NULL,
"Hat0X", "Hat0Y", "Hat1X", "Hat1Y", "Hat2X", "Hat2Y", "Hat3X", "Hat 3Y", "Pressure", "Distance", "XTilt", "YTilt"};
char *leds[LED_MAX + 1] = { "NumLock", "CapsLock", "ScrollLock", "Compose", "Kana", "Sleep", "Suspend", "Mute" };
char *repeats[REP_MAX + 1] = { "Delay", "Period" };
char *sounds[SND_MAX + 1] = { "Bell", "Click" };
char **names[EV_MAX + 1] = { events, keys, relatives, absolutes, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, leds, sounds, NULL, repeats, NULL, NULL, NULL };
/*------------------------------------------------------------------------------
*/
/*------------------------------------------------------------------------------
* CLASS DEF
*/
static t_class *rawjoystick_class;
typedef struct _rawjoystick {
t_object x_obj;
t_int x_fd;
t_symbol* x_devname;
int read_ok;
int started;
struct input_event x_input_event;
float x_scale;
float x_translation;
t_outlet *x_axis_out[RAWJOYSTICK_AXES];
t_outlet *x_button_num_out;
t_outlet *x_button_val_out;
t_clock *x_clock;
double x_delaytime;
unsigned char x_buttons;
unsigned char x_axes;
}t_rawjoystick;
/*------------------------------------------------------------------------------
* IMPLEMENTATION
*/
//DONE
static int rawjoystick_close(t_rawjoystick *x)
{
DEBUG(post("rawjoystick_close");)
if (x->x_fd <0) return 0;
close (x->x_fd);
return 1;
}
//DONE
static int rawjoystick_open(t_rawjoystick *x,t_symbol* s)
{
int eventType, eventCode;
unsigned long bitmask[EV_MAX][NBITS(KEY_MAX)];
char devicename[256] = "Unknown";
DEBUG(post("rawjoystick_open");)
rawjoystick_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 rawjoystick 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 RAWJOYSTICK_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]);
/* 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_ABS )
x->x_axes++;
}
}
}
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 rawjoystick_read(t_rawjoystick *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("rawjoystick: 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_0:
button_num = 0;
break;
case BTN_1:
button_num = 1;
break;
case BTN_2:
button_num = 2;
break;
case BTN_3:
button_num = 3;
break;
case BTN_4:
button_num = 4;
break;
case BTN_5:
button_num = 5;
break;
case BTN_6:
button_num = 6;
break;
case BTN_7:
button_num = 7;
break;
case BTN_8:
button_num = 8;
break;
case BTN_9:
button_num = 9;
break;
case BTN_TRIGGER:
button_num = 10;
break;
case BTN_THUMB:
button_num = 11;
break;
case BTN_THUMB2:
button_num = 12;
break;
case BTN_TOP:
button_num = 13;
break;
case BTN_TOP2:
button_num = 14;
break;
case BTN_PINKIE:
button_num = 15;
break;
case BTN_BASE:
button_num = 16;
break;
case BTN_BASE2:
button_num = 17;
break;
case BTN_BASE3:
button_num = 18;
break;
case BTN_BASE4:
button_num = 19;
break;
case BTN_BASE5:
button_num = 20;
break;
case BTN_BASE6:
button_num = 21;
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_ABS ) {
/* Relative Axes Event Type */
switch ( x->x_input_event.code ) {
case ABS_X:
axis_num = 0;
break;
case ABS_Y:
axis_num = 1;
break;
case ABS_Z:
axis_num = 2;
break;
case ABS_HAT0X:
axis_num = 3;
break;
case ABS_HAT0Y:
axis_num = 4;
break;
case ABS_THROTTLE:
axis_num = 5;
break;
}
outlet_float (x->x_axis_out[axis_num], (int)x->x_input_event.value);
}
return 1;
}
/* Actions */
static void rawjoystick_bang(t_rawjoystick* x)
{
DEBUG(post("rawjoystick_bang");)
}
static void rawjoystick_float(t_rawjoystick* x)
{
DEBUG(post("rawjoystick_float");)
}
// DONE
void rawjoystick_start(t_rawjoystick* x)
{
DEBUG(post("rawjoystick_start");)
if (x->x_fd >= 0 && !x->started) {
sys_addpollfn(x->x_fd, (t_fdpollfn)rawjoystick_read, x);
post("rawjoystick: start");
x->started = 1;
}
}
// DONE
void rawjoystick_stop(t_rawjoystick* x)
{
DEBUG(post("rawjoystick_stop");)
if (x->x_fd >= 0 && x->started) {
sys_rmpollfn(x->x_fd);
post("rawjoystick: stop");
x->started = 0;
}
}
/* Misc setup functions */
static void rawjoystick_free(t_rawjoystick* x)
{
DEBUG(post("rawjoystick_free");)
if (x->x_fd < 0) return;
rawjoystick_stop(x);
close (x->x_fd);
}
static void *rawjoystick_new(t_symbol *s)
{
int i;
t_rawjoystick *x = (t_rawjoystick *)pd_new(rawjoystick_class);
DEBUG(post("rawjoystick_new");)
/* init vars */
x->x_fd = -1;
x->read_ok = 1;
x->started = 0;
/* create outlets for each axis */
for (i = 0; i < RAWJOYSTICK_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 (!rawjoystick_open(x,s)) return x;
return (x);
}
void rawjoystick_setup(void)
{
DEBUG(post("rawjoystick_setup");)
rawjoystick_class = class_new(gensym("rawjoystick"),
(t_newmethod)rawjoystick_new,
(t_method)rawjoystick_free,
sizeof(t_rawjoystick),0,A_DEFSYM,0);
/* add inlet datatype methods */
class_addfloat(rawjoystick_class,(t_method) rawjoystick_float);
class_addbang(rawjoystick_class,(t_method) rawjoystick_bang);
/* add inlet message methods */
class_addmethod(rawjoystick_class, (t_method) rawjoystick_open,gensym("open"),A_DEFSYM);
class_addmethod(rawjoystick_class,(t_method) rawjoystick_close,gensym("close"),0);
class_addmethod(rawjoystick_class,(t_method) rawjoystick_start,gensym("start"),0);
class_addmethod(rawjoystick_class,(t_method) rawjoystick_stop,gensym("stop"),0);
}
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