drivers/input/joystick/iforce/iforce-main.c

   1 /*
   2  * $Id: iforce-main.c,v 1.19 2002/07/07 10:22:50 jdeneux Exp $
   3  *
   4  *  Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
   5  *  Copyright (c) 2001-2002 Johann Deneux <deneux@ifrance.com>
   6  *
   7  *  USB/RS232 I-Force joysticks and wheels.
   8  */
   9
  10 /*
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  24  *
  25  * Should you need to contact me, the author, you can do so either by
  26  * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
  27  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
  28  */
  29
  30 #include "iforce.h"
  31
  32 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <deneux@ifrance.com>");
  33 MODULE_DESCRIPTION("USB/RS232 I-Force joysticks and wheels driver");
  34 MODULE_LICENSE("GPL");
  35
  36 static signed short btn_joystick[] =
  37 { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
  38   BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A, BTN_B, BTN_C, -1 };
  39
  40 static signed short btn_avb_pegasus[] =
  41 { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
  42   BTN_BASE2, BTN_BASE3, BTN_BASE4, -1 };
  43
  44 static signed short btn_wheel[] =
  45 { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
  46   BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A, BTN_B, BTN_C, -1 };
  47
  48 static signed short btn_avb_tw[] =
  49 { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE,
  50   BTN_BASE2, BTN_BASE3, BTN_BASE4, -1 };
  51
  52 static signed short btn_avb_wheel[] =
  53 { BTN_GEAR_DOWN, BTN_GEAR_UP, BTN_BASE, BTN_BASE2, BTN_BASE3,
  54   BTN_BASE4, BTN_BASE5, BTN_BASE6, -1 };
  55
  56 static signed short abs_joystick[] =
  57 { ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
  58
  59 static signed short abs_avb_pegasus[] =
  60 { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y,
  61   ABS_HAT1X, ABS_HAT1Y, -1 };
  62
  63 static signed short abs_wheel[] =
  64 { ABS_WHEEL, ABS_GAS, ABS_BRAKE, ABS_HAT0X, ABS_HAT0Y, -1 };
  65
  66 static signed short ff_iforce[] =
  67 { FF_PERIODIC, FF_CONSTANT, FF_SPRING, FF_DAMPER,
  68   FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP, FF_SAW_DOWN, FF_GAIN,
  69   FF_AUTOCENTER, -1 };
  70
  71 static struct iforce_device iforce_device[] = {
  72         { 0x044f, 0xa01c, "Thrustmaster Motor Sport GT",                btn_wheel, abs_wheel, ff_iforce },
  73         { 0x046d, 0xc281, "Logitech WingMan Force",                     btn_joystick, abs_joystick, ff_iforce },
  74         { 0x046d, 0xc291, "Logitech WingMan Formula Force",             btn_wheel, abs_wheel, ff_iforce },
  75         { 0x05ef, 0x020a, "AVB Top Shot Pegasus",                       btn_avb_pegasus, abs_avb_pegasus, ff_iforce },
  76         { 0x05ef, 0x8884, "AVB Mag Turbo Force",                        btn_avb_wheel, abs_wheel, ff_iforce },
  77         { 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel",   btn_avb_tw, abs_wheel, ff_iforce }, //?
  78         { 0x061c, 0xc0a4, "ACT LABS Force RS",                          btn_wheel, abs_wheel, ff_iforce }, //?
  79         { 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback",       btn_wheel, abs_wheel, ff_iforce }, //?
  80         { 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel",      btn_wheel, abs_wheel, ff_iforce }, //?
  81         { 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]",         btn_joystick, abs_joystick, ff_iforce }
  82 };
  83
  84
  85
  86 static int iforce_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
  87 {
  88         struct iforce* iforce = (struct iforce*)(dev->private);
  89         unsigned char data[3];
  90
  91         if (type != EV_FF)
  92                 return -1;
  93
  94         switch (code) {
  95
  96                 case FF_GAIN:
  97
  98                         data[0] = value >> 9;
  99                         iforce_send_packet(iforce, FF_CMD_GAIN, data);
 100
 101                         return 0;
 102
 103                 case FF_AUTOCENTER:
 104
 105                         data[0] = 0x03;
 106                         data[1] = value >> 9;
 107                         iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
 108
 109                         data[0] = 0x04;
 110                         data[1] = 0x01;
 111                         iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
 112
 113                         return 0;
 114
 115                 default: /* Play or stop an effect */
 116
 117                         if (!CHECK_OWNERSHIP(code, iforce)) {
 118                                 return -1;
 119                         }
 120                         if (value > 0) {
 121                                 set_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
 122                         }
 123                         else {
 124                                 clear_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
 125                         }
 126
 127                         iforce_control_playback(iforce, code, value);
 128                         return 0;
 129         }
 130
 131         return -1;
 132 }
 133
 134 /*
 135  * Function called when an ioctl is performed on the event dev entry.
 136  * It uploads an effect to the device
 137  */
 138 static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect)
 139 {
 140         struct iforce* iforce = (struct iforce*)(dev->private);
 141         int id;
 142         int ret;
 143         int is_update;
 144
 145 /* Check this effect type is supported by this device */
 146         if (!test_bit(effect->type, iforce->dev.ffbit))
 147                 return -EINVAL;
 148
 149 /*
 150  * If we want to create a new effect, get a free id
 151  */
 152         if (effect->id == -1) {
 153
 154                 for (id=0; id < FF_EFFECTS_MAX; ++id)
 155                         if (!test_and_set_bit(FF_CORE_IS_USED, iforce->core_effects[id].flags)) break;
 156
 157                 if ( id == FF_EFFECTS_MAX || id >= iforce->dev.ff_effects_max)
 158                         return -ENOMEM;
 159
 160                 effect->id = id;
 161                 iforce->core_effects[id].owner = current->pid;
 162                 iforce->core_effects[id].flags[0] = (1<<FF_CORE_IS_USED);       /* Only IS_USED bit must be set */
 163
 164                 is_update = FALSE;
 165         }
 166         else {
 167                 /* We want to update an effect */
 168                 if (!CHECK_OWNERSHIP(effect->id, iforce)) return -EACCES;
 169
 170                 /* Parameter type cannot be updated */
 171                 if (effect->type != iforce->core_effects[effect->id].effect.type)
 172                         return -EINVAL;
 173
 174                 /* Check the effect is not already being updated */
 175                 if (test_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags)) {
 176                         return -EAGAIN;
 177                 }
 178
 179                 is_update = TRUE;
 180         }
 181
 182 /*
 183  * Upload the effect
 184  */
 185         switch (effect->type) {
 186
 187                 case FF_PERIODIC:
 188                         ret = iforce_upload_periodic(iforce, effect, is_update);
 189                         break;
 190
 191                 case FF_CONSTANT:
 192                         ret = iforce_upload_constant(iforce, effect, is_update);
 193                         break;
 194
 195                 case FF_SPRING:
 196                 case FF_DAMPER:
 197                         ret = iforce_upload_condition(iforce, effect, is_update);
 198                         break;
 199
 200                 default:
 201                         return -EINVAL;
 202         }
 203         if (ret == 0) {
 204                 /* A packet was sent, forbid new updates until we are notified
 205                  * that the packet was updated
 206                  */
 207                 set_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags);
 208         }
 209         iforce->core_effects[effect->id].effect = *effect;
 210         return ret;
 211 }
 212
 213 /*
 214  * Erases an effect: it frees the effect id and mark as unused the memory
 215  * allocated for the parameters
 216  */
 217 static int iforce_erase_effect(struct input_dev *dev, int effect_id)
 218 {
 219         struct iforce* iforce = (struct iforce*)(dev->private);
 220         int err = 0;
 221         struct iforce_core_effect* core_effect;
 222
 223         /* Check who is trying to erase this effect */
 224         if (iforce->core_effects[effect_id].owner != current->pid) {
 225                 printk(KERN_WARNING "iforce-main.c: %d tried to erase an effect belonging to %d\n", current->pid, iforce->core_effects[effect_id].owner);
 226                 return -EACCES;
 227         }
 228
 229         if (effect_id < 0 || effect_id >= FF_EFFECTS_MAX)
 230                 return -EINVAL;
 231
 232         core_effect = iforce->core_effects + effect_id;
 233
 234         if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
 235                 err = release_resource(&(iforce->core_effects[effect_id].mod1_chunk));
 236
 237         if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
 238                 err = release_resource(&(iforce->core_effects[effect_id].mod2_chunk));
 239
 240         /*TODO: remember to change that if more FF_MOD* bits are added */
 241         core_effect->flags[0] = 0;
 242
 243         return err;
 244 }
 245
 246 static int iforce_open(struct input_dev *dev)
 247 {
 248         struct iforce *iforce = dev->private;
 249
 250         switch (iforce->bus) {
 251 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 252                 case IFORCE_USB:
 253                         iforce->irq->dev = iforce->usbdev;
 254                         if (usb_submit_urb(iforce->irq, GFP_KERNEL))
 255                                 return -EIO;
 256                         break;
 257 #endif
 258         }
 259
 260         /* Enable force feedback */
 261         iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
 262
 263         return 0;
 264 }
 265
 266 static int iforce_flush(struct input_dev *dev, struct file *file)
 267 {
 268         struct iforce *iforce = dev->private;
 269         int i;
 270
 271         /* Erase all effects this process owns */
 272         for (i=0; i<dev->ff_effects_max; ++i) {
 273
 274                 if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
 275                         current->pid == iforce->core_effects[i].owner) {
 276
 277                         /* Stop effect */
 278                         input_report_ff(dev, i, 0);
 279
 280                         /* Free ressources assigned to effect */
 281                         if (iforce_erase_effect(dev, i)) {
 282                                 printk(KERN_WARNING "iforce_flush: erase effect %d failed\n", i);
 283                         }
 284                 }
 285
 286         }
 287         return 0;
 288 }
 289
 290 static void iforce_release(struct input_dev *dev)
 291 {
 292         struct iforce *iforce = dev->private;
 293         int i;
 294
 295         /* Check: no effect should be present in memory */
 296         for (i=0; i<dev->ff_effects_max; ++i) {
 297                 if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags))
 298                         break;
 299         }
 300         if (i<dev->ff_effects_max) {
 301                 printk(KERN_WARNING "iforce_release: Device still owns effects\n");
 302         }
 303
 304         /* Disable force feedback playback */
 305         iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
 306
 307         switch (iforce->bus) {
 308 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 309                 case IFORCE_USB:
 310                         usb_unlink_urb(iforce->irq);
 311
 312                         /* The device was unplugged before the file
 313                          * was released */
 314                         if (iforce->usbdev == NULL) {
 315                                 iforce_delete_device(iforce);
 316                                 kfree(iforce);
 317                         }
 318                 break;
 319 #endif
 320         }
 321 }
 322
 323 void iforce_delete_device(struct iforce *iforce)
 324 {
 325         switch (iforce->bus) {
 326 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 327         case IFORCE_USB:
 328                 iforce_usb_delete(iforce);
 329                 break;
 330 #endif
 331 #ifdef CONFIG_JOYSTICK_IFORCE_232
 332         case IFORCE_232:
 333                 //TODO: Wait for the last packets to be sent
 334                 break;
 335 #endif
 336         }
 337 }
 338
 339 int iforce_init_device(struct iforce *iforce)
 340 {
 341         unsigned char c[] = "CEOV";
 342         int i;
 343
 344         init_waitqueue_head(&iforce->wait);
 345         spin_lock_init(&iforce->xmit_lock);
 346         init_MUTEX(&iforce->mem_mutex);
 347         iforce->xmit.buf = iforce->xmit_data;
 348
 349         iforce->dev.ff_effects_max = 10;
 350
 351 /*
 352  * Input device fields.
 353  */
 354
 355         switch (iforce->bus) {
 356 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 357         case IFORCE_USB:
 358                 iforce->dev.id.bustype = BUS_USB;
 359                 iforce->dev.dev = &iforce->usbdev->dev;
 360                 break;
 361 #endif
 362 #ifdef CONFIG_JOYSTICK_IFORCE_232
 363         case IFORCE_232:
 364                 iforce->dev.id.bustype = BUS_RS232;
 365                 iforce->dev.dev = &iforce->serio->dev;
 366                 break;
 367 #endif
 368         }
 369
 370         iforce->dev.private = iforce;
 371         iforce->dev.name = "Unknown I-Force device";
 372         iforce->dev.open = iforce_open;
 373         iforce->dev.close = iforce_release;
 374         iforce->dev.flush = iforce_flush;
 375         iforce->dev.event = iforce_input_event;
 376         iforce->dev.upload_effect = iforce_upload_effect;
 377         iforce->dev.erase_effect = iforce_erase_effect;
 378
 379 /*
 380  * On-device memory allocation.
 381  */
 382
 383         iforce->device_memory.name = "I-Force device effect memory";
 384         iforce->device_memory.start = 0;
 385         iforce->device_memory.end = 200;
 386         iforce->device_memory.flags = IORESOURCE_MEM;
 387         iforce->device_memory.parent = NULL;
 388         iforce->device_memory.child = NULL;
 389         iforce->device_memory.sibling = NULL;
 390
 391 /*
 392  * Wait until device ready - until it sends its first response.
 393  */
 394
 395         for (i = 0; i < 20; i++)
 396                 if (!iforce_get_id_packet(iforce, "O"))
 397                         break;
 398
 399         if (i == 20) { /* 5 seconds */
 400                 printk(KERN_ERR "iforce-main.c: Timeout waiting for response from device.\n");
 401                 return -1;
 402         }
 403
 404 /*
 405  * Get device info.
 406  */
 407
 408         if (!iforce_get_id_packet(iforce, "M"))
 409                 iforce->dev.id.vendor = (iforce->edata[2] << 8) | iforce->edata[1];
 410         else
 411                 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet M\n");
 412
 413         if (!iforce_get_id_packet(iforce, "P"))
 414                 iforce->dev.id.product = (iforce->edata[2] << 8) | iforce->edata[1];
 415         else
 416                 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet P\n");
 417
 418         if (!iforce_get_id_packet(iforce, "B"))
 419                 iforce->device_memory.end = (iforce->edata[2] << 8) | iforce->edata[1];
 420         else
 421                 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet B\n");
 422
 423         if (!iforce_get_id_packet(iforce, "N"))
 424                 iforce->dev.ff_effects_max = iforce->edata[1];
 425         else
 426                 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet N\n");
 427
 428         /* Check if the device can store more effects than the driver can really handle */
 429         if (iforce->dev.ff_effects_max > FF_EFFECTS_MAX) {
 430                 printk(KERN_WARNING "input??: Device can handle %d effects, but N_EFFECTS_MAX is set to %d in iforce.h\n",
 431                         iforce->dev.ff_effects_max, FF_EFFECTS_MAX);
 432                 iforce->dev.ff_effects_max = FF_EFFECTS_MAX;
 433         }
 434
 435 /*
 436  * Display additional info.
 437  */
 438
 439         for (i = 0; c[i]; i++)
 440                 if (!iforce_get_id_packet(iforce, c + i))
 441                         iforce_dump_packet("info", iforce->ecmd, iforce->edata);
 442
 443 /*
 444  * Disable spring, enable force feedback.
 445  * FIXME: We should use iforce_set_autocenter() et al here.
 446  */
 447
 448         iforce_send_packet(iforce, FF_CMD_AUTOCENTER, "\004\000");
 449
 450 /*
 451  * Find appropriate device entry
 452  */
 453
 454         for (i = 0; iforce_device[i].idvendor; i++)
 455                 if (iforce_device[i].idvendor == iforce->dev.id.vendor &&
 456                     iforce_device[i].idproduct == iforce->dev.id.product)
 457                         break;
 458
 459         iforce->type = iforce_device + i;
 460         iforce->dev.name = iforce->type->name;
 461
 462 /*
 463  * Set input device bitfields and ranges.
 464  */
 465
 466         iforce->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_FF) | BIT(EV_FF_STATUS);
 467
 468         for (i = 0; iforce->type->btn[i] >= 0; i++) {
 469                 signed short t = iforce->type->btn[i];
 470                 set_bit(t, iforce->dev.keybit);
 471         }
 472         set_bit(BTN_DEAD, iforce->dev.keybit);
 473
 474         for (i = 0; iforce->type->abs[i] >= 0; i++) {
 475
 476                 signed short t = iforce->type->abs[i];
 477                 set_bit(t, iforce->dev.absbit);
 478
 479                 switch (t) {
 480
 481                         case ABS_X:
 482                         case ABS_Y:
 483                         case ABS_WHEEL:
 484
 485                                 iforce->dev.absmax[t] =  1920;
 486                                 iforce->dev.absmin[t] = -1920;
 487                                 iforce->dev.absflat[t] = 128;
 488                                 iforce->dev.absfuzz[t] = 16;
 489
 490                                 set_bit(t, iforce->dev.ffbit);
 491                                 break;
 492
 493                         case ABS_THROTTLE:
 494                         case ABS_GAS:
 495                         case ABS_BRAKE:
 496
 497                                 iforce->dev.absmax[t] = 255;
 498                                 iforce->dev.absmin[t] = 0;
 499                                 break;
 500
 501                         case ABS_RUDDER:
 502
 503                                 iforce->dev.absmax[t] = 127;
 504                                 iforce->dev.absmin[t] = -128;
 505                                 break;
 506
 507                         case ABS_HAT0X:
 508                         case ABS_HAT0Y:
 509                         case ABS_HAT1X:
 510                         case ABS_HAT1Y:
 511                                 iforce->dev.absmax[t] =  1;
 512                                 iforce->dev.absmin[t] = -1;
 513                                 break;
 514                 }
 515         }
 516
 517         for (i = 0; iforce->type->ff[i] >= 0; i++)
 518                 set_bit(iforce->type->ff[i], iforce->dev.ffbit);
 519
 520 /*
 521  * Register input device.
 522  */
 523
 524         input_register_device(&iforce->dev);
 525
 526         printk(KERN_DEBUG "iforce->dev.open = %p\n", iforce->dev.open);
 527
 528         printk(KERN_INFO "input: %s [%d effects, %ld bytes memory]\n",
 529                 iforce->dev.name, iforce->dev.ff_effects_max,
 530                 iforce->device_memory.end);
 531
 532         return 0;
 533 }
 534
 535 static int __init iforce_init(void)
 536 {
 537 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 538         usb_register(&iforce_usb_driver);
 539 #endif
 540 #ifdef CONFIG_JOYSTICK_IFORCE_232
 541         serio_register_driver(&iforce_serio_drv);
 542 #endif
 543         return 0;
 544 }
 545
 546 static void __exit iforce_exit(void)
 547 {
 548 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 549         usb_deregister(&iforce_usb_driver);
 550 #endif
 551 #ifdef CONFIG_JOYSTICK_IFORCE_232
 552         serio_unregister_driver(&iforce_serio_drv);
 553 #endif
 554 }
 555
 556 module_init(iforce_init);
 557 module_exit(iforce_exit);