| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: 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 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 13 | #pragma implementation "joystick.h" |
| 14 | #endif |
| 15 | |
| 16 | // for compilers that support precompilation, includes "wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #include "wx/defs.h" |
| 20 | |
| 21 | #if wxUSE_JOYSTICK |
| 22 | |
| 23 | #include "wx/joystick.h" |
| 24 | |
| 25 | #include <linux/joystick.h> |
| 26 | #include <sys/types.h> |
| 27 | #include <sys/stat.h> |
| 28 | #include <sys/time.h> |
| 29 | #include <sys/ioctl.h> |
| 30 | #include <fcntl.h> |
| 31 | #include <unistd.h> |
| 32 | |
| 33 | #include "wx/event.h" |
| 34 | #include "wx/window.h" |
| 35 | |
| 36 | #define JOYSTICK_AXE_MAX 32767 |
| 37 | #define JOYSTICK_AXE_MIN -32767 |
| 38 | |
| 39 | IMPLEMENT_DYNAMIC_CLASS(wxJoystick, wxObject) |
| 40 | |
| 41 | wxJoystick::wxJoystick(int joystick) |
| 42 | { |
| 43 | wxString dev_name; |
| 44 | // Assume it's the same device name on all Linux systems ... |
| 45 | dev_name.Printf( wxT("/dev/js%d"), (joystick == wxJOYSTICK1) ? 0 : 1); // FIXME Unicode? |
| 46 | |
| 47 | m_joystick = open(dev_name.fn_str(), O_RDWR); |
| 48 | m_lastposition = wxPoint(-1, -1); |
| 49 | for (int i=0;i<15;i++) |
| 50 | m_axe[i] = 0; |
| 51 | if (m_joystick != -1) |
| 52 | Create(); |
| 53 | } |
| 54 | |
| 55 | //////////////////////////////////////////////////////////////////////////// |
| 56 | // Background thread |
| 57 | //////////////////////////////////////////////////////////////////////////// |
| 58 | void *wxJoystick::Entry(void) |
| 59 | { |
| 60 | struct js_event j_evt; |
| 61 | wxJoystickEvent jwx_event; |
| 62 | fd_set read_fds; |
| 63 | struct timeval time_out = {0, 0}; |
| 64 | |
| 65 | FD_ZERO(&read_fds); |
| 66 | while (1) { |
| 67 | TestDestroy(); |
| 68 | |
| 69 | if (m_polling) { |
| 70 | FD_SET(m_joystick, &read_fds); |
| 71 | select(m_joystick+1, &read_fds, NULL, NULL, &time_out); |
| 72 | if (FD_ISSET(m_joystick, &read_fds)) |
| 73 | read(m_joystick, &j_evt, sizeof(j_evt)); |
| 74 | else |
| 75 | j_evt.type = 0; |
| 76 | } else { |
| 77 | read(m_joystick, &j_evt, sizeof(j_evt)); |
| 78 | } |
| 79 | |
| 80 | if ((j_evt.type & JS_EVENT_AXIS) == JS_EVENT_AXIS) { |
| 81 | switch (j_evt.number) { |
| 82 | case 1: |
| 83 | m_lastposition.x = j_evt.value; |
| 84 | jwx_event.SetEventType(wxEVT_JOY_MOVE); |
| 85 | break; |
| 86 | case 2: |
| 87 | m_lastposition.y = j_evt.value; |
| 88 | jwx_event.SetEventType(wxEVT_JOY_MOVE); |
| 89 | break; |
| 90 | case 3: |
| 91 | m_axe[3] = j_evt.value; |
| 92 | jwx_event.SetEventType(wxEVT_JOY_ZMOVE); |
| 93 | break; |
| 94 | default: |
| 95 | m_axe[j_evt.number] = j_evt.value; |
| 96 | jwx_event.SetEventType(wxEVT_JOY_MOVE); |
| 97 | break; |
| 98 | } |
| 99 | jwx_event.SetPosition(m_lastposition); |
| 100 | jwx_event.SetZPosition(m_axe[3]); |
| 101 | } |
| 102 | if ((j_evt.type & JS_EVENT_BUTTON) == JS_EVENT_BUTTON) { |
| 103 | register int mask = 1 << j_evt.number; |
| 104 | char button = m_buttons & mask; |
| 105 | |
| 106 | m_buttons &= ~mask; |
| 107 | if (button) { |
| 108 | jwx_event.SetEventType(wxEVT_JOY_BUTTON_UP); |
| 109 | } else { |
| 110 | jwx_event.SetEventType(wxEVT_JOY_BUTTON_DOWN); |
| 111 | m_buttons |= mask; |
| 112 | } |
| 113 | |
| 114 | jwx_event.SetButtonState(m_buttons); |
| 115 | jwx_event.SetButtonChange(j_evt.number); |
| 116 | } |
| 117 | } |
| 118 | if (m_catchwin) |
| 119 | m_catchwin->ProcessEvent(jwx_event); |
| 120 | if (m_polling) |
| 121 | usleep(m_polling*1000); |
| 122 | } |
| 123 | |
| 124 | //////////////////////////////////////////////////////////////////////////// |
| 125 | // State |
| 126 | //////////////////////////////////////////////////////////////////////////// |
| 127 | |
| 128 | wxPoint wxJoystick::GetPosition(void) const |
| 129 | { |
| 130 | return m_lastposition; |
| 131 | } |
| 132 | |
| 133 | int wxJoystick::GetZPosition(void) const |
| 134 | { |
| 135 | return m_axe[3]; |
| 136 | } |
| 137 | |
| 138 | int wxJoystick::GetButtonState(void) const |
| 139 | { |
| 140 | return m_buttons; |
| 141 | } |
| 142 | |
| 143 | int wxJoystick::GetPOVPosition(void) const |
| 144 | { |
| 145 | return -1; |
| 146 | } |
| 147 | |
| 148 | int wxJoystick::GetPOVCTSPosition(void) const |
| 149 | { |
| 150 | return -1; |
| 151 | } |
| 152 | |
| 153 | int wxJoystick::GetRudderPosition(void) const |
| 154 | { |
| 155 | return m_axe[4]; |
| 156 | } |
| 157 | |
| 158 | int wxJoystick::GetUPosition(void) const |
| 159 | { |
| 160 | return m_axe[5]; |
| 161 | } |
| 162 | |
| 163 | int wxJoystick::GetVPosition(void) const |
| 164 | { |
| 165 | return m_axe[6]; |
| 166 | } |
| 167 | |
| 168 | int wxJoystick::GetMovementThreshold(void) const |
| 169 | { |
| 170 | return 0; |
| 171 | } |
| 172 | |
| 173 | void wxJoystick::SetMovementThreshold(int threshold) |
| 174 | { |
| 175 | } |
| 176 | |
| 177 | //////////////////////////////////////////////////////////////////////////// |
| 178 | // Capabilities |
| 179 | //////////////////////////////////////////////////////////////////////////// |
| 180 | |
| 181 | bool wxJoystick::IsOk(void) const |
| 182 | { |
| 183 | return (m_joystick != -1); |
| 184 | } |
| 185 | |
| 186 | int wxJoystick::GetNumberJoysticks(void) const |
| 187 | { |
| 188 | wxString dev_name; |
| 189 | int fd, j; |
| 190 | |
| 191 | for (j=0;j<2;j++) { |
| 192 | dev_name.Printf(wxT("/dev/js%d"), j); |
| 193 | fd = open(dev_name.fn_str(), O_RDONLY); |
| 194 | if (fd == -1) |
| 195 | return j; |
| 196 | close(fd); |
| 197 | } |
| 198 | return j; |
| 199 | } |
| 200 | |
| 201 | int wxJoystick::GetManufacturerId(void) const |
| 202 | { |
| 203 | return 0; |
| 204 | } |
| 205 | |
| 206 | int wxJoystick::GetProductId(void) const |
| 207 | { |
| 208 | return 0; |
| 209 | } |
| 210 | |
| 211 | wxString wxJoystick::GetProductName(void) const |
| 212 | { |
| 213 | wxString dev_name; |
| 214 | // 2002-08-20 johan@linkdata.se |
| 215 | // Return the device name in lieu of a better one |
| 216 | dev_name.Printf( wxT("/dev/js%d"), (m_joystick == wxJOYSTICK1) ? 0 : 1); // FIXME Unicode? |
| 217 | return dev_name; |
| 218 | } |
| 219 | |
| 220 | int wxJoystick::GetXMin(void) const |
| 221 | { |
| 222 | return JOYSTICK_AXE_MAX; |
| 223 | } |
| 224 | |
| 225 | int wxJoystick::GetYMin(void) const |
| 226 | { |
| 227 | return JOYSTICK_AXE_MAX; |
| 228 | } |
| 229 | |
| 230 | int wxJoystick::GetZMin(void) const |
| 231 | { |
| 232 | return JOYSTICK_AXE_MAX; |
| 233 | } |
| 234 | |
| 235 | int wxJoystick::GetXMax(void) const |
| 236 | { |
| 237 | return JOYSTICK_AXE_MAX; |
| 238 | } |
| 239 | |
| 240 | int wxJoystick::GetYMax(void) const |
| 241 | { |
| 242 | return JOYSTICK_AXE_MAX; |
| 243 | } |
| 244 | |
| 245 | int wxJoystick::GetZMax(void) const |
| 246 | { |
| 247 | return JOYSTICK_AXE_MAX; |
| 248 | } |
| 249 | |
| 250 | int wxJoystick::GetNumberButtons(void) const |
| 251 | { |
| 252 | int nb; |
| 253 | |
| 254 | ioctl(m_joystick, JSIOCGBUTTONS, &nb); |
| 255 | |
| 256 | return nb; |
| 257 | } |
| 258 | |
| 259 | int wxJoystick::GetNumberAxes(void) const |
| 260 | { |
| 261 | int nb; |
| 262 | |
| 263 | ioctl(m_joystick, JSIOCGAXES, &nb); |
| 264 | |
| 265 | return nb; |
| 266 | } |
| 267 | |
| 268 | int wxJoystick::GetMaxButtons(void) const |
| 269 | { |
| 270 | return 15; // internal |
| 271 | } |
| 272 | |
| 273 | int wxJoystick::GetMaxAxes(void) const |
| 274 | { |
| 275 | return 15; // internal |
| 276 | } |
| 277 | |
| 278 | int wxJoystick::GetPollingMin(void) const |
| 279 | { |
| 280 | return -1; |
| 281 | } |
| 282 | |
| 283 | int wxJoystick::GetPollingMax(void) const |
| 284 | { |
| 285 | return -1; |
| 286 | } |
| 287 | |
| 288 | int wxJoystick::GetRudderMin(void) const |
| 289 | { |
| 290 | return JOYSTICK_AXE_MIN; |
| 291 | } |
| 292 | |
| 293 | int wxJoystick::GetRudderMax(void) const |
| 294 | { |
| 295 | return JOYSTICK_AXE_MAX; |
| 296 | } |
| 297 | |
| 298 | int wxJoystick::GetUMin(void) const |
| 299 | { |
| 300 | return JOYSTICK_AXE_MIN; |
| 301 | } |
| 302 | |
| 303 | int wxJoystick::GetUMax(void) const |
| 304 | { |
| 305 | return JOYSTICK_AXE_MAX; |
| 306 | } |
| 307 | |
| 308 | int wxJoystick::GetVMin(void) const |
| 309 | { |
| 310 | return JOYSTICK_AXE_MIN; |
| 311 | } |
| 312 | |
| 313 | int wxJoystick::GetVMax(void) const |
| 314 | { |
| 315 | return JOYSTICK_AXE_MAX; |
| 316 | } |
| 317 | |
| 318 | bool wxJoystick::HasRudder(void) const |
| 319 | { |
| 320 | return GetNumberAxes() >= 4; |
| 321 | } |
| 322 | |
| 323 | bool wxJoystick::HasZ(void) const |
| 324 | { |
| 325 | return GetNumberAxes() >= 3; |
| 326 | } |
| 327 | |
| 328 | bool wxJoystick::HasU(void) const |
| 329 | { |
| 330 | return GetNumberAxes() >= 5; |
| 331 | } |
| 332 | |
| 333 | bool wxJoystick::HasV(void) const |
| 334 | { |
| 335 | return GetNumberAxes() >= 6; |
| 336 | } |
| 337 | |
| 338 | bool wxJoystick::HasPOV(void) const |
| 339 | { |
| 340 | return FALSE; |
| 341 | } |
| 342 | |
| 343 | bool wxJoystick::HasPOV4Dir(void) const |
| 344 | { |
| 345 | return FALSE; |
| 346 | } |
| 347 | |
| 348 | bool wxJoystick::HasPOVCTS(void) const |
| 349 | { |
| 350 | return FALSE; |
| 351 | } |
| 352 | |
| 353 | //////////////////////////////////////////////////////////////////////////// |
| 354 | // Operations |
| 355 | //////////////////////////////////////////////////////////////////////////// |
| 356 | |
| 357 | bool wxJoystick::SetCapture(wxWindow* win, int pollingFreq) |
| 358 | { |
| 359 | m_catchwin = win; |
| 360 | m_polling = pollingFreq; |
| 361 | return TRUE; |
| 362 | } |
| 363 | |
| 364 | bool wxJoystick::ReleaseCapture(void) |
| 365 | { |
| 366 | m_catchwin = NULL; |
| 367 | m_polling = 0; |
| 368 | return TRUE; |
| 369 | } |
| 370 | #endif // wxUSE_JOYSTICK |
| 371 | |