]>
Commit | Line | Data |
---|---|---|
1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/unix/joystick.cpp | |
3 | // Purpose: wxJoystick class | |
4 | // Author: Ported to Linux by Guilhem Lavaux | |
5 | // Modified by: | |
6 | // Created: 05/23/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Guilhem Lavaux | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // for compilers that support precompilation, includes "wx.h". | |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #if wxUSE_JOYSTICK | |
16 | ||
17 | #include "wx/joystick.h" | |
18 | ||
19 | #ifndef WX_PRECOMP | |
20 | #include "wx/event.h" | |
21 | #include "wx/window.h" | |
22 | #endif //WX_PRECOMP | |
23 | ||
24 | #include <linux/joystick.h> | |
25 | #include <sys/types.h> | |
26 | #include <sys/stat.h> | |
27 | #include <sys/time.h> | |
28 | #include <sys/ioctl.h> | |
29 | #include <fcntl.h> | |
30 | #include <unistd.h> | |
31 | ||
32 | #include "wx/unix/private.h" | |
33 | ||
34 | enum { | |
35 | wxJS_AXIS_X = 0, | |
36 | wxJS_AXIS_Y, | |
37 | wxJS_AXIS_Z, | |
38 | wxJS_AXIS_RUDDER, | |
39 | wxJS_AXIS_U, | |
40 | wxJS_AXIS_V, | |
41 | ||
42 | wxJS_AXIS_MAX = 32767, | |
43 | wxJS_AXIS_MIN = -32767 | |
44 | }; | |
45 | ||
46 | ||
47 | IMPLEMENT_DYNAMIC_CLASS(wxJoystick, wxObject) | |
48 | ||
49 | ||
50 | //////////////////////////////////////////////////////////////////////////// | |
51 | // Background thread for reading the joystick device | |
52 | //////////////////////////////////////////////////////////////////////////// | |
53 | ||
54 | class wxJoystickThread : public wxThread | |
55 | { | |
56 | public: | |
57 | wxJoystickThread(int device, int joystick); | |
58 | void* Entry(); | |
59 | ||
60 | private: | |
61 | int m_device; | |
62 | int m_joystick; | |
63 | wxPoint m_lastposition; | |
64 | int m_axe[15]; | |
65 | int m_buttons; | |
66 | wxWindow* m_catchwin; | |
67 | int m_polling; | |
68 | ||
69 | friend class wxJoystick; | |
70 | }; | |
71 | ||
72 | ||
73 | wxJoystickThread::wxJoystickThread(int device, int joystick) | |
74 | : m_device(device), | |
75 | m_joystick(joystick), | |
76 | m_lastposition(wxDefaultPosition), | |
77 | m_buttons(0), | |
78 | m_catchwin(NULL), | |
79 | m_polling(0) | |
80 | { | |
81 | for (int i=0; i<15; i++) | |
82 | m_axe[i] = 0; | |
83 | } | |
84 | ||
85 | ||
86 | void* wxJoystickThread::Entry() | |
87 | { | |
88 | struct js_event j_evt; | |
89 | fd_set read_fds; | |
90 | struct timeval time_out = {0, 0}; | |
91 | ||
92 | wxFD_ZERO(&read_fds); | |
93 | while (true) | |
94 | { | |
95 | if (TestDestroy()) | |
96 | break; | |
97 | ||
98 | // We use select when either polling or 'blocking' as even in the | |
99 | // blocking case we need to check TestDestroy periodically | |
100 | if (m_polling) | |
101 | time_out.tv_usec = m_polling * 1000; | |
102 | else | |
103 | time_out.tv_usec = 10 * 1000; // check at least every 10 msec in blocking case | |
104 | ||
105 | wxFD_SET(m_device, &read_fds); | |
106 | select(m_device+1, &read_fds, NULL, NULL, &time_out); | |
107 | if (wxFD_ISSET(m_device, &read_fds)) | |
108 | { | |
109 | memset(&j_evt, 0, sizeof(j_evt)); | |
110 | read(m_device, &j_evt, sizeof(j_evt)); | |
111 | ||
112 | //printf("time: %d\t value: %d\t type: %d\t number: %d\n", | |
113 | // j_evt.time, j_evt.value, j_evt.type, j_evt.number); | |
114 | ||
115 | wxJoystickEvent jwx_event; | |
116 | ||
117 | if (j_evt.type & JS_EVENT_AXIS) | |
118 | { | |
119 | m_axe[j_evt.number] = j_evt.value; | |
120 | ||
121 | switch (j_evt.number) | |
122 | { | |
123 | case wxJS_AXIS_X: | |
124 | m_lastposition.x = j_evt.value; | |
125 | jwx_event.SetEventType(wxEVT_JOY_MOVE); | |
126 | break; | |
127 | case wxJS_AXIS_Y: | |
128 | m_lastposition.y = j_evt.value; | |
129 | jwx_event.SetEventType(wxEVT_JOY_MOVE); | |
130 | break; | |
131 | case wxJS_AXIS_Z: | |
132 | jwx_event.SetEventType(wxEVT_JOY_ZMOVE); | |
133 | break; | |
134 | default: | |
135 | jwx_event.SetEventType(wxEVT_JOY_MOVE); | |
136 | // TODO: There should be a way to indicate that the event | |
137 | // is for some other axes. | |
138 | break; | |
139 | } | |
140 | } | |
141 | ||
142 | if (j_evt.type & JS_EVENT_BUTTON) | |
143 | { | |
144 | if (j_evt.value) | |
145 | { | |
146 | m_buttons |= (1 << j_evt.number); | |
147 | jwx_event.SetEventType(wxEVT_JOY_BUTTON_DOWN); | |
148 | } | |
149 | else | |
150 | { | |
151 | m_buttons &= ~(1 << j_evt.number); | |
152 | jwx_event.SetEventType(wxEVT_JOY_BUTTON_UP); | |
153 | } | |
154 | ||
155 | jwx_event.SetButtonChange(j_evt.number); | |
156 | ||
157 | jwx_event.SetTimestamp(j_evt.time); | |
158 | jwx_event.SetJoystick(m_joystick); | |
159 | jwx_event.SetButtonState(m_buttons); | |
160 | jwx_event.SetPosition(m_lastposition); | |
161 | jwx_event.SetZPosition(m_axe[3]); | |
162 | jwx_event.SetEventObject(m_catchwin); | |
163 | ||
164 | if (m_catchwin) | |
165 | m_catchwin->AddPendingEvent(jwx_event); | |
166 | } | |
167 | } | |
168 | } | |
169 | ||
170 | close(m_device); | |
171 | return NULL; | |
172 | } | |
173 | ||
174 | ||
175 | //////////////////////////////////////////////////////////////////////////// | |
176 | ||
177 | wxJoystick::wxJoystick(int joystick) | |
178 | : m_device(-1), | |
179 | m_joystick(joystick), | |
180 | m_thread(NULL) | |
181 | { | |
182 | wxString dev_name; | |
183 | ||
184 | // old /dev structure | |
185 | dev_name.Printf( wxT("/dev/js%d"), joystick); | |
186 | m_device = open(dev_name.fn_str(), O_RDONLY); | |
187 | ||
188 | // new /dev structure with "input" subdirectory | |
189 | if (m_device == -1) | |
190 | { | |
191 | dev_name.Printf( wxT("/dev/input/js%d"), joystick); | |
192 | m_device = open(dev_name.fn_str(), O_RDONLY); | |
193 | } | |
194 | ||
195 | if (m_device != -1) | |
196 | { | |
197 | m_thread = new wxJoystickThread(m_device, m_joystick); | |
198 | m_thread->Create(); | |
199 | m_thread->Run(); | |
200 | } | |
201 | } | |
202 | ||
203 | ||
204 | wxJoystick::~wxJoystick() | |
205 | { | |
206 | ReleaseCapture(); | |
207 | if (m_thread) | |
208 | m_thread->Delete(); // It's detached so it will delete itself | |
209 | m_device = -1; | |
210 | } | |
211 | ||
212 | ||
213 | //////////////////////////////////////////////////////////////////////////// | |
214 | // State | |
215 | //////////////////////////////////////////////////////////////////////////// | |
216 | ||
217 | wxPoint wxJoystick::GetPosition() const | |
218 | { | |
219 | wxPoint pos(wxDefaultPosition); | |
220 | if (m_thread) pos = m_thread->m_lastposition; | |
221 | return pos; | |
222 | } | |
223 | ||
224 | int wxJoystick::GetZPosition() const | |
225 | { | |
226 | if (m_thread) | |
227 | return m_thread->m_axe[wxJS_AXIS_Z]; | |
228 | return 0; | |
229 | } | |
230 | ||
231 | int wxJoystick::GetButtonState() const | |
232 | { | |
233 | if (m_thread) | |
234 | return m_thread->m_buttons; | |
235 | return 0; | |
236 | } | |
237 | ||
238 | int wxJoystick::GetPOVPosition() const | |
239 | { | |
240 | return -1; | |
241 | } | |
242 | ||
243 | int wxJoystick::GetPOVCTSPosition() const | |
244 | { | |
245 | return -1; | |
246 | } | |
247 | ||
248 | int wxJoystick::GetRudderPosition() const | |
249 | { | |
250 | if (m_thread) | |
251 | return m_thread->m_axe[wxJS_AXIS_RUDDER]; | |
252 | return 0; | |
253 | } | |
254 | ||
255 | int wxJoystick::GetUPosition() const | |
256 | { | |
257 | if (m_thread) | |
258 | return m_thread->m_axe[wxJS_AXIS_U]; | |
259 | return 0; | |
260 | } | |
261 | ||
262 | int wxJoystick::GetVPosition() const | |
263 | { | |
264 | if (m_thread) | |
265 | return m_thread->m_axe[wxJS_AXIS_V]; | |
266 | return 0; | |
267 | } | |
268 | ||
269 | int wxJoystick::GetMovementThreshold() const | |
270 | { | |
271 | return 0; | |
272 | } | |
273 | ||
274 | void wxJoystick::SetMovementThreshold(int threshold) | |
275 | { | |
276 | } | |
277 | ||
278 | //////////////////////////////////////////////////////////////////////////// | |
279 | // Capabilities | |
280 | //////////////////////////////////////////////////////////////////////////// | |
281 | ||
282 | bool wxJoystick::IsOk() const | |
283 | { | |
284 | return (m_device != -1); | |
285 | } | |
286 | ||
287 | int wxJoystick::GetNumberJoysticks() | |
288 | { | |
289 | wxString dev_name; | |
290 | int fd, j; | |
291 | ||
292 | for (j=0; j<4; j++) { | |
293 | dev_name.Printf(wxT("/dev/js%d"), j); | |
294 | fd = open(dev_name.fn_str(), O_RDONLY); | |
295 | if (fd == -1) | |
296 | break; | |
297 | close(fd); | |
298 | } | |
299 | ||
300 | if (j == 0) { | |
301 | for (j=0; j<4; j++) { | |
302 | dev_name.Printf(wxT("/dev/input/js%d"), j); | |
303 | fd = open(dev_name.fn_str(), O_RDONLY); | |
304 | if (fd == -1) | |
305 | return j; | |
306 | close(fd); | |
307 | } | |
308 | } | |
309 | ||
310 | return j; | |
311 | } | |
312 | ||
313 | int wxJoystick::GetManufacturerId() const | |
314 | { | |
315 | return 0; | |
316 | } | |
317 | ||
318 | int wxJoystick::GetProductId() const | |
319 | { | |
320 | return 0; | |
321 | } | |
322 | ||
323 | wxString wxJoystick::GetProductName() const | |
324 | { | |
325 | char name[128]; | |
326 | ||
327 | if (ioctl(m_device, JSIOCGNAME(sizeof(name)), name) < 0) | |
328 | strcpy(name, "Unknown"); | |
329 | return wxString(name, wxConvLibc); | |
330 | } | |
331 | ||
332 | int wxJoystick::GetXMin() const | |
333 | { | |
334 | return wxJS_AXIS_MIN; | |
335 | } | |
336 | ||
337 | int wxJoystick::GetYMin() const | |
338 | { | |
339 | return wxJS_AXIS_MIN; | |
340 | } | |
341 | ||
342 | int wxJoystick::GetZMin() const | |
343 | { | |
344 | return wxJS_AXIS_MIN; | |
345 | } | |
346 | ||
347 | int wxJoystick::GetXMax() const | |
348 | { | |
349 | return wxJS_AXIS_MAX; | |
350 | } | |
351 | ||
352 | int wxJoystick::GetYMax() const | |
353 | { | |
354 | return wxJS_AXIS_MAX; | |
355 | } | |
356 | ||
357 | int wxJoystick::GetZMax() const | |
358 | { | |
359 | return wxJS_AXIS_MAX; | |
360 | } | |
361 | ||
362 | int wxJoystick::GetNumberButtons() const | |
363 | { | |
364 | char nb=0; | |
365 | ||
366 | if (m_device != -1) | |
367 | ioctl(m_device, JSIOCGBUTTONS, &nb); | |
368 | ||
369 | return nb; | |
370 | } | |
371 | ||
372 | int wxJoystick::GetNumberAxes() const | |
373 | { | |
374 | char nb=0; | |
375 | ||
376 | if (m_device != -1) | |
377 | ioctl(m_device, JSIOCGAXES, &nb); | |
378 | ||
379 | return nb; | |
380 | } | |
381 | ||
382 | int wxJoystick::GetMaxButtons() const | |
383 | { | |
384 | return 15; // internal | |
385 | } | |
386 | ||
387 | int wxJoystick::GetMaxAxes() const | |
388 | { | |
389 | return 15; // internal | |
390 | } | |
391 | ||
392 | int wxJoystick::GetPollingMin() const | |
393 | { | |
394 | return 10; | |
395 | } | |
396 | ||
397 | int wxJoystick::GetPollingMax() const | |
398 | { | |
399 | return 1000; | |
400 | } | |
401 | ||
402 | int wxJoystick::GetRudderMin() const | |
403 | { | |
404 | return wxJS_AXIS_MIN; | |
405 | } | |
406 | ||
407 | int wxJoystick::GetRudderMax() const | |
408 | { | |
409 | return wxJS_AXIS_MAX; | |
410 | } | |
411 | ||
412 | int wxJoystick::GetUMin() const | |
413 | { | |
414 | return wxJS_AXIS_MIN; | |
415 | } | |
416 | ||
417 | int wxJoystick::GetUMax() const | |
418 | { | |
419 | return wxJS_AXIS_MAX; | |
420 | } | |
421 | ||
422 | int wxJoystick::GetVMin() const | |
423 | { | |
424 | return wxJS_AXIS_MIN; | |
425 | } | |
426 | ||
427 | int wxJoystick::GetVMax() const | |
428 | { | |
429 | return wxJS_AXIS_MAX; | |
430 | } | |
431 | ||
432 | bool wxJoystick::HasRudder() const | |
433 | { | |
434 | return GetNumberAxes() >= wxJS_AXIS_RUDDER; | |
435 | } | |
436 | ||
437 | bool wxJoystick::HasZ() const | |
438 | { | |
439 | return GetNumberAxes() >= wxJS_AXIS_Z; | |
440 | } | |
441 | ||
442 | bool wxJoystick::HasU() const | |
443 | { | |
444 | return GetNumberAxes() >= wxJS_AXIS_U; | |
445 | } | |
446 | ||
447 | bool wxJoystick::HasV() const | |
448 | { | |
449 | return GetNumberAxes() >= wxJS_AXIS_V; | |
450 | } | |
451 | ||
452 | bool wxJoystick::HasPOV() const | |
453 | { | |
454 | return false; | |
455 | } | |
456 | ||
457 | bool wxJoystick::HasPOV4Dir() const | |
458 | { | |
459 | return false; | |
460 | } | |
461 | ||
462 | bool wxJoystick::HasPOVCTS() const | |
463 | { | |
464 | return false; | |
465 | } | |
466 | ||
467 | //////////////////////////////////////////////////////////////////////////// | |
468 | // Operations | |
469 | //////////////////////////////////////////////////////////////////////////// | |
470 | ||
471 | bool wxJoystick::SetCapture(wxWindow* win, int pollingFreq) | |
472 | { | |
473 | if (m_thread) | |
474 | { | |
475 | m_thread->m_catchwin = win; | |
476 | m_thread->m_polling = pollingFreq; | |
477 | return true; | |
478 | } | |
479 | return false; | |
480 | } | |
481 | ||
482 | bool wxJoystick::ReleaseCapture() | |
483 | { | |
484 | if (m_thread) | |
485 | { | |
486 | m_thread->m_catchwin = NULL; | |
487 | m_thread->m_polling = 0; | |
488 | return true; | |
489 | } | |
490 | return false; | |
491 | } | |
492 | #endif // wxUSE_JOYSTICK |