kernel/2.6.29.6-aldebaran-rt/drivers/input/joystick/iforce/iforce-main.c

   1 /*
   2  *  Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
   3  *  Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
   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 <vojtech@ucw.cz>, 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 <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
  31 MODULE_DESCRIPTION("USB/RS232 I-Force joysticks and wheels driver");
  32 MODULE_LICENSE("GPL");
  33
  34 static signed short btn_joystick[] =
  35 { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
  36   BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A, BTN_B, BTN_C, -1 };
  37
  38 static signed short btn_avb_pegasus[] =
  39 { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
  40   BTN_BASE2, BTN_BASE3, BTN_BASE4, -1 };
  41
  42 static signed short btn_wheel[] =
  43 { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
  44   BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A, BTN_B, BTN_C, -1 };
  45
  46 static signed short btn_avb_tw[] =
  47 { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE,
  48   BTN_BASE2, BTN_BASE3, BTN_BASE4, -1 };
  49
  50 static signed short btn_avb_wheel[] =
  51 { BTN_GEAR_DOWN, BTN_GEAR_UP, BTN_BASE, BTN_BASE2, BTN_BASE3,
  52   BTN_BASE4, BTN_BASE5, BTN_BASE6, -1 };
  53
  54 static signed short abs_joystick[] =
  55 { ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
  56
  57 static signed short abs_avb_pegasus[] =
  58 { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y,
  59   ABS_HAT1X, ABS_HAT1Y, -1 };
  60
  61 static signed short abs_wheel[] =
  62 { ABS_WHEEL, ABS_GAS, ABS_BRAKE, ABS_HAT0X, ABS_HAT0Y, -1 };
  63
  64 static signed short ff_iforce[] =
  65 { FF_PERIODIC, FF_CONSTANT, FF_SPRING, FF_DAMPER,
  66   FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP, FF_SAW_DOWN, FF_GAIN,
  67   FF_AUTOCENTER, -1 };
  68
  69 static struct iforce_device iforce_device[] = {
  70         { 0x044f, 0xa01c, "Thrustmaster Motor Sport GT",                btn_wheel, abs_wheel, ff_iforce },
  71         { 0x046d, 0xc281, "Logitech WingMan Force",                     btn_joystick, abs_joystick, ff_iforce },
  72         { 0x046d, 0xc291, "Logitech WingMan Formula Force",             btn_wheel, abs_wheel, ff_iforce },
  73         { 0x05ef, 0x020a, "AVB Top Shot Pegasus",                       btn_avb_pegasus, abs_avb_pegasus, ff_iforce },
  74         { 0x05ef, 0x8884, "AVB Mag Turbo Force",                        btn_avb_wheel, abs_wheel, ff_iforce },
  75         { 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel",   btn_avb_tw, abs_wheel, ff_iforce }, //?
  76         { 0x061c, 0xc0a4, "ACT LABS Force RS",                          btn_wheel, abs_wheel, ff_iforce }, //?
  77         { 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback",       btn_wheel, abs_wheel, ff_iforce }, //?
  78         { 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel",      btn_wheel, abs_wheel, ff_iforce }, //?
  79         { 0x06f8, 0x0004, "Gullemot Jet Leader 3D",                     btn_joystick, abs_joystick, ff_iforce }, //?
  80         { 0x06d6, 0x29bc, "Trust Force Feedback Race Master",           btn_wheel, abs_wheel, ff_iforce },
  81         { 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]",         btn_joystick, abs_joystick, ff_iforce }
  82 };
  83
  84 static int iforce_playback(struct input_dev *dev, int effect_id, int value)
  85 {
  86         struct iforce *iforce = input_get_drvdata(dev);
  87         struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
  88
  89         if (value > 0)
  90                 set_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
  91         else
  92                 clear_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
  93
  94         iforce_control_playback(iforce, effect_id, value);
  95         return 0;
  96 }
  97
  98 static void iforce_set_gain(struct input_dev *dev, u16 gain)
  99 {
 100         struct iforce *iforce = input_get_drvdata(dev);
 101         unsigned char data[3];
 102
 103         data[0] = gain >> 9;
 104         iforce_send_packet(iforce, FF_CMD_GAIN, data);
 105 }
 106
 107 static void iforce_set_autocenter(struct input_dev *dev, u16 magnitude)
 108 {
 109         struct iforce *iforce = input_get_drvdata(dev);
 110         unsigned char data[3];
 111
 112         data[0] = 0x03;
 113         data[1] = magnitude >> 9;
 114         iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
 115
 116         data[0] = 0x04;
 117         data[1] = 0x01;
 118         iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
 119 }
 120
 121 /*
 122  * Function called when an ioctl is performed on the event dev entry.
 123  * It uploads an effect to the device
 124  */
 125 static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
 126 {
 127         struct iforce *iforce = input_get_drvdata(dev);
 128         struct iforce_core_effect *core_effect = &iforce->core_effects[effect->id];
 129         int ret;
 130
 131         if (__test_and_set_bit(FF_CORE_IS_USED, core_effect->flags)) {
 132                 /* Check the effect is not already being updated */
 133                 if (test_bit(FF_CORE_UPDATE, core_effect->flags))
 134                         return -EAGAIN;
 135         }
 136
 137 /*
 138  * Upload the effect
 139  */
 140         switch (effect->type) {
 141
 142                 case FF_PERIODIC:
 143                         ret = iforce_upload_periodic(iforce, effect, old);
 144                         break;
 145
 146                 case FF_CONSTANT:
 147                         ret = iforce_upload_constant(iforce, effect, old);
 148                         break;
 149
 150                 case FF_SPRING:
 151                 case FF_DAMPER:
 152                         ret = iforce_upload_condition(iforce, effect, old);
 153                         break;
 154
 155                 default:
 156                         return -EINVAL;
 157         }
 158
 159         if (ret == 0) {
 160                 /* A packet was sent, forbid new updates until we are notified
 161                  * that the packet was updated
 162                  */
 163                 set_bit(FF_CORE_UPDATE, core_effect->flags);
 164         }
 165         return ret;
 166 }
 167
 168 /*
 169  * Erases an effect: it frees the effect id and mark as unused the memory
 170  * allocated for the parameters
 171  */
 172 static int iforce_erase_effect(struct input_dev *dev, int effect_id)
 173 {
 174         struct iforce *iforce = input_get_drvdata(dev);
 175         struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
 176         int err = 0;
 177
 178         if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
 179                 err = release_resource(&core_effect->mod1_chunk);
 180
 181         if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
 182                 err = release_resource(&core_effect->mod2_chunk);
 183
 184         /* TODO: remember to change that if more FF_MOD* bits are added */
 185         core_effect->flags[0] = 0;
 186
 187         return err;
 188 }
 189
 190 static int iforce_open(struct input_dev *dev)
 191 {
 192         struct iforce *iforce = input_get_drvdata(dev);
 193
 194         switch (iforce->bus) {
 195 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 196                 case IFORCE_USB:
 197                         iforce->irq->dev = iforce->usbdev;
 198                         if (usb_submit_urb(iforce->irq, GFP_KERNEL))
 199                                 return -EIO;
 200                         break;
 201 #endif
 202         }
 203
 204         if (test_bit(EV_FF, dev->evbit)) {
 205                 /* Enable force feedback */
 206                 iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
 207         }
 208
 209         return 0;
 210 }
 211
 212 static void iforce_release(struct input_dev *dev)
 213 {
 214         struct iforce *iforce = input_get_drvdata(dev);
 215         int i;
 216
 217         if (test_bit(EV_FF, dev->evbit)) {
 218                 /* Check: no effects should be present in memory */
 219                 for (i = 0; i < dev->ff->max_effects; i++) {
 220                         if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags)) {
 221                                 dev_warn(&dev->dev,
 222                                         "%s: Device still owns effects\n",
 223                                         __func__);
 224                                 break;
 225                         }
 226                 }
 227
 228                 /* Disable force feedback playback */
 229                 iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
 230         }
 231
 232         switch (iforce->bus) {
 233 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 234                 case IFORCE_USB:
 235                         usb_kill_urb(iforce->irq);
 236
 237                         /* The device was unplugged before the file
 238                          * was released */
 239                         if (iforce->usbdev == NULL) {
 240                                 iforce_delete_device(iforce);
 241                                 kfree(iforce);
 242                         }
 243                 break;
 244 #endif
 245         }
 246 }
 247
 248 void iforce_delete_device(struct iforce *iforce)
 249 {
 250         switch (iforce->bus) {
 251 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 252         case IFORCE_USB:
 253                 iforce_usb_delete(iforce);
 254                 break;
 255 #endif
 256 #ifdef CONFIG_JOYSTICK_IFORCE_232
 257         case IFORCE_232:
 258                 //TODO: Wait for the last packets to be sent
 259                 break;
 260 #endif
 261         }
 262 }
 263
 264 int iforce_init_device(struct iforce *iforce)
 265 {
 266         struct input_dev *input_dev;
 267         struct ff_device *ff;
 268         unsigned char c[] = "CEOV";
 269         int i, error;
 270         int ff_effects = 0;
 271
 272         input_dev = input_allocate_device();
 273         if (!input_dev)
 274                 return -ENOMEM;
 275
 276         init_waitqueue_head(&iforce->wait);
 277         spin_lock_init(&iforce->xmit_lock);
 278         mutex_init(&iforce->mem_mutex);
 279         iforce->xmit.buf = iforce->xmit_data;
 280         iforce->dev = input_dev;
 281
 282 /*
 283  * Input device fields.
 284  */
 285
 286         switch (iforce->bus) {
 287 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 288         case IFORCE_USB:
 289                 input_dev->id.bustype = BUS_USB;
 290                 input_dev->dev.parent = &iforce->usbdev->dev;
 291                 break;
 292 #endif
 293 #ifdef CONFIG_JOYSTICK_IFORCE_232
 294         case IFORCE_232:
 295                 input_dev->id.bustype = BUS_RS232;
 296                 input_dev->dev.parent = &iforce->serio->dev;
 297                 break;
 298 #endif
 299         }
 300
 301         input_set_drvdata(input_dev, iforce);
 302
 303         input_dev->name = "Unknown I-Force device";
 304         input_dev->open = iforce_open;
 305         input_dev->close = iforce_release;
 306
 307 /*
 308  * On-device memory allocation.
 309  */
 310
 311         iforce->device_memory.name = "I-Force device effect memory";
 312         iforce->device_memory.start = 0;
 313         iforce->device_memory.end = 200;
 314         iforce->device_memory.flags = IORESOURCE_MEM;
 315         iforce->device_memory.parent = NULL;
 316         iforce->device_memory.child = NULL;
 317         iforce->device_memory.sibling = NULL;
 318
 319 /*
 320  * Wait until device ready - until it sends its first response.
 321  */
 322
 323         for (i = 0; i < 20; i++)
 324                 if (!iforce_get_id_packet(iforce, "O"))
 325                         break;
 326
 327         if (i == 20) { /* 5 seconds */
 328                 err("Timeout waiting for response from device.");
 329                 error = -ENODEV;
 330                 goto fail;
 331         }
 332
 333 /*
 334  * Get device info.
 335  */
 336
 337         if (!iforce_get_id_packet(iforce, "M"))
 338                 input_dev->id.vendor = (iforce->edata[2] << 8) | iforce->edata[1];
 339         else
 340                 dev_warn(&iforce->dev->dev, "Device does not respond to id packet M\n");
 341
 342         if (!iforce_get_id_packet(iforce, "P"))
 343                 input_dev->id.product = (iforce->edata[2] << 8) | iforce->edata[1];
 344         else
 345                 dev_warn(&iforce->dev->dev, "Device does not respond to id packet P\n");
 346
 347         if (!iforce_get_id_packet(iforce, "B"))
 348                 iforce->device_memory.end = (iforce->edata[2] << 8) | iforce->edata[1];
 349         else
 350                 dev_warn(&iforce->dev->dev, "Device does not respond to id packet B\n");
 351
 352         if (!iforce_get_id_packet(iforce, "N"))
 353                 ff_effects = iforce->edata[1];
 354         else
 355                 dev_warn(&iforce->dev->dev, "Device does not respond to id packet N\n");
 356
 357         /* Check if the device can store more effects than the driver can really handle */
 358         if (ff_effects > IFORCE_EFFECTS_MAX) {
 359                 dev_warn(&iforce->dev->dev, "Limiting number of effects to %d (device reports %d)\n",
 360                        IFORCE_EFFECTS_MAX, ff_effects);
 361                 ff_effects = IFORCE_EFFECTS_MAX;
 362         }
 363
 364 /*
 365  * Display additional info.
 366  */
 367
 368         for (i = 0; c[i]; i++)
 369                 if (!iforce_get_id_packet(iforce, c + i))
 370                         iforce_dump_packet("info", iforce->ecmd, iforce->edata);
 371
 372 /*
 373  * Disable spring, enable force feedback.
 374  */
 375         iforce_set_autocenter(input_dev, 0);
 376
 377 /*
 378  * Find appropriate device entry
 379  */
 380
 381         for (i = 0; iforce_device[i].idvendor; i++)
 382                 if (iforce_device[i].idvendor == input_dev->id.vendor &&
 383                     iforce_device[i].idproduct == input_dev->id.product)
 384                         break;
 385
 386         iforce->type = iforce_device + i;
 387         input_dev->name = iforce->type->name;
 388
 389 /*
 390  * Set input device bitfields and ranges.
 391  */
 392
 393         input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) |
 394                 BIT_MASK(EV_FF_STATUS);
 395
 396         for (i = 0; iforce->type->btn[i] >= 0; i++)
 397                 set_bit(iforce->type->btn[i], input_dev->keybit);
 398         set_bit(BTN_DEAD, input_dev->keybit);
 399
 400         for (i = 0; iforce->type->abs[i] >= 0; i++) {
 401
 402                 signed short t = iforce->type->abs[i];
 403
 404                 switch (t) {
 405
 406                         case ABS_X:
 407                         case ABS_Y:
 408                         case ABS_WHEEL:
 409
 410                                 input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
 411                                 set_bit(t, input_dev->ffbit);
 412                                 break;
 413
 414                         case ABS_THROTTLE:
 415                         case ABS_GAS:
 416                         case ABS_BRAKE:
 417
 418                                 input_set_abs_params(input_dev, t, 0, 255, 0, 0);
 419                                 break;
 420
 421                         case ABS_RUDDER:
 422
 423                                 input_set_abs_params(input_dev, t, -128, 127, 0, 0);
 424                                 break;
 425
 426                         case ABS_HAT0X:
 427                         case ABS_HAT0Y:
 428                         case ABS_HAT1X:
 429                         case ABS_HAT1Y:
 430
 431                                 input_set_abs_params(input_dev, t, -1, 1, 0, 0);
 432                                 break;
 433                 }
 434         }
 435
 436         if (ff_effects) {
 437
 438                 for (i = 0; iforce->type->ff[i] >= 0; i++)
 439                         set_bit(iforce->type->ff[i], input_dev->ffbit);
 440
 441                 error = input_ff_create(input_dev, ff_effects);
 442                 if (error)
 443                         goto fail;
 444
 445                 ff = input_dev->ff;
 446                 ff->upload = iforce_upload_effect;
 447                 ff->erase = iforce_erase_effect;
 448                 ff->set_gain = iforce_set_gain;
 449                 ff->set_autocenter = iforce_set_autocenter;
 450                 ff->playback = iforce_playback;
 451         }
 452 /*
 453  * Register input device.
 454  */
 455
 456         error = input_register_device(iforce->dev);
 457         if (error)
 458                 goto fail;
 459
 460         return 0;
 461
 462  fail:  input_free_device(input_dev);
 463         return error;
 464 }
 465
 466 static int __init iforce_init(void)
 467 {
 468         int err = 0;
 469
 470 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 471         err = usb_register(&iforce_usb_driver);
 472         if (err)
 473                 return err;
 474 #endif
 475 #ifdef CONFIG_JOYSTICK_IFORCE_232
 476         err = serio_register_driver(&iforce_serio_drv);
 477 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 478         if (err)
 479                 usb_deregister(&iforce_usb_driver);
 480 #endif
 481 #endif
 482         return err;
 483 }
 484
 485 static void __exit iforce_exit(void)
 486 {
 487 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 488         usb_deregister(&iforce_usb_driver);
 489 #endif
 490 #ifdef CONFIG_JOYSTICK_IFORCE_232
 491         serio_unregister_driver(&iforce_serio_drv);
 492 #endif
 493 }
 494
 495 module_init(iforce_init);
 496 module_exit(iforce_exit);