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iforce-main.c
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1 /*
2  * Copyright (c) 2000-2002 Vojtech Pavlik <[email protected]>
3  * Copyright (c) 2001-2002, 2007 Johann Deneux <[email protected]>
4  *
5  * USB/RS232 I-Force joysticks and wheels.
6  */
7 
8 /*
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22  *
23  * Should you need to contact me, the author, you can do so either by
24  * e-mail - mail your message to <[email protected]>, or by paper mail:
25  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
26  */
27 
28 #include "iforce.h"
29 
30 MODULE_AUTHOR("Vojtech Pavlik <[email protected]>, Johann Deneux <[email protected]>");
31 MODULE_DESCRIPTION("USB/RS232 I-Force joysticks and wheels driver");
32 MODULE_LICENSE("GPL");
33 
34 static signed short btn_joystick[] =
37 
38 static signed short btn_avb_pegasus[] =
41 
42 static signed short btn_wheel[] =
45 
46 static signed short btn_avb_tw[] =
49 
50 static signed short btn_avb_wheel[] =
53 
54 static signed short abs_joystick[] =
56 
57 static signed short abs_joystick_rudder[] =
59 
60 static signed short abs_avb_pegasus[] =
62  ABS_HAT1X, ABS_HAT1Y, -1 };
63 
64 static signed short abs_wheel[] =
66 
67 static signed short ff_iforce[] =
70  FF_AUTOCENTER, -1 };
71 
72 static struct iforce_device iforce_device[] = {
73  { 0x044f, 0xa01c, "Thrustmaster Motor Sport GT", btn_wheel, abs_wheel, ff_iforce },
74  { 0x046d, 0xc281, "Logitech WingMan Force", btn_joystick, abs_joystick, ff_iforce },
75  { 0x046d, 0xc291, "Logitech WingMan Formula Force", btn_wheel, abs_wheel, ff_iforce },
76  { 0x05ef, 0x020a, "AVB Top Shot Pegasus", btn_avb_pegasus, abs_avb_pegasus, ff_iforce },
77  { 0x05ef, 0x8884, "AVB Mag Turbo Force", btn_avb_wheel, abs_wheel, ff_iforce },
78  { 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel", btn_avb_tw, abs_wheel, ff_iforce }, //?
79  { 0x061c, 0xc0a4, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce }, //?
80  { 0x061c, 0xc084, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce },
81  { 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback", btn_wheel, abs_wheel, ff_iforce }, //?
82  { 0x06f8, 0x0001, "Guillemot Jet Leader Force Feedback", btn_joystick, abs_joystick_rudder, ff_iforce },
83  { 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel", btn_wheel, abs_wheel, ff_iforce }, //?
84  { 0x06f8, 0xa302, "Guillemot Jet Leader 3D", btn_joystick, abs_joystick, ff_iforce }, //?
85  { 0x06d6, 0x29bc, "Trust Force Feedback Race Master", btn_wheel, abs_wheel, ff_iforce },
86  { 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]", btn_joystick, abs_joystick, ff_iforce }
87 };
88 
89 static int iforce_playback(struct input_dev *dev, int effect_id, int value)
90 {
91  struct iforce *iforce = input_get_drvdata(dev);
92  struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
93 
94  if (value > 0)
95  set_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
96  else
97  clear_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
98 
99  iforce_control_playback(iforce, effect_id, value);
100  return 0;
101 }
102 
103 static void iforce_set_gain(struct input_dev *dev, u16 gain)
104 {
105  struct iforce *iforce = input_get_drvdata(dev);
106  unsigned char data[3];
107 
108  data[0] = gain >> 9;
109  iforce_send_packet(iforce, FF_CMD_GAIN, data);
110 }
111 
112 static void iforce_set_autocenter(struct input_dev *dev, u16 magnitude)
113 {
114  struct iforce *iforce = input_get_drvdata(dev);
115  unsigned char data[3];
116 
117  data[0] = 0x03;
118  data[1] = magnitude >> 9;
119  iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
120 
121  data[0] = 0x04;
122  data[1] = 0x01;
123  iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
124 }
125 
126 /*
127  * Function called when an ioctl is performed on the event dev entry.
128  * It uploads an effect to the device
129  */
130 static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
131 {
132  struct iforce *iforce = input_get_drvdata(dev);
133  struct iforce_core_effect *core_effect = &iforce->core_effects[effect->id];
134  int ret;
135 
136  if (__test_and_set_bit(FF_CORE_IS_USED, core_effect->flags)) {
137  /* Check the effect is not already being updated */
138  if (test_bit(FF_CORE_UPDATE, core_effect->flags))
139  return -EAGAIN;
140  }
141 
142 /*
143  * Upload the effect
144  */
145  switch (effect->type) {
146 
147  case FF_PERIODIC:
148  ret = iforce_upload_periodic(iforce, effect, old);
149  break;
150 
151  case FF_CONSTANT:
152  ret = iforce_upload_constant(iforce, effect, old);
153  break;
154 
155  case FF_SPRING:
156  case FF_DAMPER:
157  ret = iforce_upload_condition(iforce, effect, old);
158  break;
159 
160  default:
161  return -EINVAL;
162  }
163 
164  if (ret == 0) {
165  /* A packet was sent, forbid new updates until we are notified
166  * that the packet was updated
167  */
168  set_bit(FF_CORE_UPDATE, core_effect->flags);
169  }
170  return ret;
171 }
172 
173 /*
174  * Erases an effect: it frees the effect id and mark as unused the memory
175  * allocated for the parameters
176  */
177 static int iforce_erase_effect(struct input_dev *dev, int effect_id)
178 {
179  struct iforce *iforce = input_get_drvdata(dev);
180  struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
181  int err = 0;
182 
183  if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
184  err = release_resource(&core_effect->mod1_chunk);
185 
186  if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
187  err = release_resource(&core_effect->mod2_chunk);
188 
189  /* TODO: remember to change that if more FF_MOD* bits are added */
190  core_effect->flags[0] = 0;
191 
192  return err;
193 }
194 
195 static int iforce_open(struct input_dev *dev)
196 {
197  struct iforce *iforce = input_get_drvdata(dev);
198 
199  switch (iforce->bus) {
200 #ifdef CONFIG_JOYSTICK_IFORCE_USB
201  case IFORCE_USB:
202  iforce->irq->dev = iforce->usbdev;
203  if (usb_submit_urb(iforce->irq, GFP_KERNEL))
204  return -EIO;
205  break;
206 #endif
207  }
208 
209  if (test_bit(EV_FF, dev->evbit)) {
210  /* Enable force feedback */
211  iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
212  }
213 
214  return 0;
215 }
216 
217 static void iforce_close(struct input_dev *dev)
218 {
219  struct iforce *iforce = input_get_drvdata(dev);
220  int i;
221 
222  if (test_bit(EV_FF, dev->evbit)) {
223  /* Check: no effects should be present in memory */
224  for (i = 0; i < dev->ff->max_effects; i++) {
225  if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags)) {
226  dev_warn(&dev->dev,
227  "%s: Device still owns effects\n",
228  __func__);
229  break;
230  }
231  }
232 
233  /* Disable force feedback playback */
234  iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
235  /* Wait for the command to complete */
238  }
239 
240  switch (iforce->bus) {
241 #ifdef CONFIG_JOYSTICK_IFORCE_USB
242  case IFORCE_USB:
243  usb_kill_urb(iforce->irq);
244  usb_kill_urb(iforce->out);
245  usb_kill_urb(iforce->ctrl);
246  break;
247 #endif
248 #ifdef CONFIG_JOYSTICK_IFORCE_232
249  case IFORCE_232:
250  //TODO: Wait for the last packets to be sent
251  break;
252 #endif
253  }
254 }
255 
256 int iforce_init_device(struct iforce *iforce)
257 {
258  struct input_dev *input_dev;
259  struct ff_device *ff;
260  unsigned char c[] = "CEOV";
261  int i, error;
262  int ff_effects = 0;
263 
264  input_dev = input_allocate_device();
265  if (!input_dev)
266  return -ENOMEM;
267 
268  init_waitqueue_head(&iforce->wait);
269  spin_lock_init(&iforce->xmit_lock);
270  mutex_init(&iforce->mem_mutex);
271  iforce->xmit.buf = iforce->xmit_data;
272  iforce->dev = input_dev;
273 
274 /*
275  * Input device fields.
276  */
277 
278  switch (iforce->bus) {
279 #ifdef CONFIG_JOYSTICK_IFORCE_USB
280  case IFORCE_USB:
281  input_dev->id.bustype = BUS_USB;
282  input_dev->dev.parent = &iforce->usbdev->dev;
283  break;
284 #endif
285 #ifdef CONFIG_JOYSTICK_IFORCE_232
286  case IFORCE_232:
287  input_dev->id.bustype = BUS_RS232;
288  input_dev->dev.parent = &iforce->serio->dev;
289  break;
290 #endif
291  }
292 
293  input_set_drvdata(input_dev, iforce);
294 
295  input_dev->name = "Unknown I-Force device";
296  input_dev->open = iforce_open;
297  input_dev->close = iforce_close;
298 
299 /*
300  * On-device memory allocation.
301  */
302 
303  iforce->device_memory.name = "I-Force device effect memory";
304  iforce->device_memory.start = 0;
305  iforce->device_memory.end = 200;
306  iforce->device_memory.flags = IORESOURCE_MEM;
307  iforce->device_memory.parent = NULL;
308  iforce->device_memory.child = NULL;
309  iforce->device_memory.sibling = NULL;
310 
311 /*
312  * Wait until device ready - until it sends its first response.
313  */
314 
315  for (i = 0; i < 20; i++)
316  if (!iforce_get_id_packet(iforce, "O"))
317  break;
318 
319  if (i == 20) { /* 5 seconds */
320  dev_err(&input_dev->dev,
321  "Timeout waiting for response from device.\n");
322  error = -ENODEV;
323  goto fail;
324  }
325 
326 /*
327  * Get device info.
328  */
329 
330  if (!iforce_get_id_packet(iforce, "M"))
331  input_dev->id.vendor = (iforce->edata[2] << 8) | iforce->edata[1];
332  else
333  dev_warn(&iforce->dev->dev, "Device does not respond to id packet M\n");
334 
335  if (!iforce_get_id_packet(iforce, "P"))
336  input_dev->id.product = (iforce->edata[2] << 8) | iforce->edata[1];
337  else
338  dev_warn(&iforce->dev->dev, "Device does not respond to id packet P\n");
339 
340  if (!iforce_get_id_packet(iforce, "B"))
341  iforce->device_memory.end = (iforce->edata[2] << 8) | iforce->edata[1];
342  else
343  dev_warn(&iforce->dev->dev, "Device does not respond to id packet B\n");
344 
345  if (!iforce_get_id_packet(iforce, "N"))
346  ff_effects = iforce->edata[1];
347  else
348  dev_warn(&iforce->dev->dev, "Device does not respond to id packet N\n");
349 
350  /* Check if the device can store more effects than the driver can really handle */
351  if (ff_effects > IFORCE_EFFECTS_MAX) {
352  dev_warn(&iforce->dev->dev, "Limiting number of effects to %d (device reports %d)\n",
353  IFORCE_EFFECTS_MAX, ff_effects);
354  ff_effects = IFORCE_EFFECTS_MAX;
355  }
356 
357 /*
358  * Display additional info.
359  */
360 
361  for (i = 0; c[i]; i++)
362  if (!iforce_get_id_packet(iforce, c + i))
363  iforce_dump_packet("info", iforce->ecmd, iforce->edata);
364 
365 /*
366  * Disable spring, enable force feedback.
367  */
368  iforce_set_autocenter(input_dev, 0);
369 
370 /*
371  * Find appropriate device entry
372  */
373 
374  for (i = 0; iforce_device[i].idvendor; i++)
375  if (iforce_device[i].idvendor == input_dev->id.vendor &&
376  iforce_device[i].idproduct == input_dev->id.product)
377  break;
378 
379  iforce->type = iforce_device + i;
380  input_dev->name = iforce->type->name;
381 
382 /*
383  * Set input device bitfields and ranges.
384  */
385 
386  input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) |
388 
389  for (i = 0; iforce->type->btn[i] >= 0; i++)
390  set_bit(iforce->type->btn[i], input_dev->keybit);
391  set_bit(BTN_DEAD, input_dev->keybit);
392 
393  for (i = 0; iforce->type->abs[i] >= 0; i++) {
394 
395  signed short t = iforce->type->abs[i];
396 
397  switch (t) {
398 
399  case ABS_X:
400  case ABS_Y:
401  case ABS_WHEEL:
402 
403  input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
404  set_bit(t, input_dev->ffbit);
405  break;
406 
407  case ABS_THROTTLE:
408  case ABS_GAS:
409  case ABS_BRAKE:
410 
411  input_set_abs_params(input_dev, t, 0, 255, 0, 0);
412  break;
413 
414  case ABS_RUDDER:
415 
416  input_set_abs_params(input_dev, t, -128, 127, 0, 0);
417  break;
418 
419  case ABS_HAT0X:
420  case ABS_HAT0Y:
421  case ABS_HAT1X:
422  case ABS_HAT1Y:
423 
424  input_set_abs_params(input_dev, t, -1, 1, 0, 0);
425  break;
426  }
427  }
428 
429  if (ff_effects) {
430 
431  for (i = 0; iforce->type->ff[i] >= 0; i++)
432  set_bit(iforce->type->ff[i], input_dev->ffbit);
433 
434  error = input_ff_create(input_dev, ff_effects);
435  if (error)
436  goto fail;
437 
438  ff = input_dev->ff;
439  ff->upload = iforce_upload_effect;
440  ff->erase = iforce_erase_effect;
441  ff->set_gain = iforce_set_gain;
442  ff->set_autocenter = iforce_set_autocenter;
443  ff->playback = iforce_playback;
444  }
445 /*
446  * Register input device.
447  */
448 
449  error = input_register_device(iforce->dev);
450  if (error)
451  goto fail;
452 
453  return 0;
454 
455  fail: input_free_device(input_dev);
456  return error;
457 }
458 
459 static int __init iforce_init(void)
460 {
461  int err = 0;
462 
463 #ifdef CONFIG_JOYSTICK_IFORCE_USB
464  err = usb_register(&iforce_usb_driver);
465  if (err)
466  return err;
467 #endif
468 #ifdef CONFIG_JOYSTICK_IFORCE_232
470 #ifdef CONFIG_JOYSTICK_IFORCE_USB
471  if (err)
473 #endif
474 #endif
475  return err;
476 }
477 
478 static void __exit iforce_exit(void)
479 {
480 #ifdef CONFIG_JOYSTICK_IFORCE_USB
482 #endif
483 #ifdef CONFIG_JOYSTICK_IFORCE_232
485 #endif
486 }
487 
488 module_init(iforce_init);
489 module_exit(iforce_exit);