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         { 0x06f8, 0x0004, "Gullemot Jet Leader 3D",                     btn_joystick, abs_joystick, ff_iforce }, //?
  82         { 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]",         btn_joystick, abs_joystick, ff_iforce }
  83 };
  84
  85
  86
  87 static int iforce_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
  88 {
  89         struct iforce* iforce = (struct iforce*)(dev->private);
  90         unsigned char data[3];
  91
  92         if (type != EV_FF)
  93                 return -1;
  94
  95         switch (code) {
  96
  97                 case FF_GAIN:
  98
  99                         data[0] = value >> 9;
 100                         iforce_send_packet(iforce, FF_CMD_GAIN, data);
 101
 102                         return 0;
 103
 104                 case FF_AUTOCENTER:
 105
 106                         data[0] = 0x03;
 107                         data[1] = value >> 9;
 108                         iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
 109
 110                         data[0] = 0x04;
 111                         data[1] = 0x01;
 112                         iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
 113
 114                         return 0;
 115
 116                 default: /* Play or stop an effect */
 117
 118                         if (!CHECK_OWNERSHIP(code, iforce)) {
 119                                 return -1;
 120                         }
 121                         if (value > 0) {
 122                                 set_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
 123                         }
 124                         else {
 125                                 clear_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
 126                         }
 127
 128                         iforce_control_playback(iforce, code, value);
 129                         return 0;
 130         }
 131
 132         return -1;
 133 }
 134
 135 /*
 136  * Function called when an ioctl is performed on the event dev entry.
 137  * It uploads an effect to the device
 138  */
 139 static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect)
 140 {
 141         struct iforce* iforce = (struct iforce*)(dev->private);
 142         int id;
 143         int ret;
 144         int is_update;
 145
 146 /* Check this effect type is supported by this device */
 147         if (!test_bit(effect->type, iforce->dev->ffbit))
 148                 return -EINVAL;
 149
 150 /*
 151  * If we want to create a new effect, get a free id
 152  */
 153         if (effect->id == -1) {
 154
 155                 for (id = 0; id < FF_EFFECTS_MAX; ++id)
 156                         if (!test_and_set_bit(FF_CORE_IS_USED, iforce->core_effects[id].flags))
 157                                 break;
 158
 159                 if (id == FF_EFFECTS_MAX || id >= iforce->dev->ff_effects_max)
 160                         return -ENOMEM;
 161
 162                 effect->id = id;
 163                 iforce->core_effects[id].owner = current->pid;
 164                 iforce->core_effects[id].flags[0] = (1 << FF_CORE_IS_USED);     /* Only IS_USED bit must be set */
 165
 166                 is_update = FALSE;
 167         }
 168         else {
 169                 /* We want to update an effect */
 170                 if (!CHECK_OWNERSHIP(effect->id, iforce))
 171                         return -EACCES;
 172
 173                 /* Parameter type cannot be updated */
 174                 if (effect->type != iforce->core_effects[effect->id].effect.type)
 175                         return -EINVAL;
 176
 177                 /* Check the effect is not already being updated */
 178                 if (test_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags))
 179                         return -EAGAIN;
 180
 181                 is_update = TRUE;
 182         }
 183
 184 /*
 185  * Upload the effect
 186  */
 187         switch (effect->type) {
 188
 189                 case FF_PERIODIC:
 190                         ret = iforce_upload_periodic(iforce, effect, is_update);
 191                         break;
 192
 193                 case FF_CONSTANT:
 194                         ret = iforce_upload_constant(iforce, effect, is_update);
 195                         break;
 196
 197                 case FF_SPRING:
 198                 case FF_DAMPER:
 199                         ret = iforce_upload_condition(iforce, effect, is_update);
 200                         break;
 201
 202                 default:
 203                         return -EINVAL;
 204         }
 205         if (ret == 0) {
 206                 /* A packet was sent, forbid new updates until we are notified
 207                  * that the packet was updated
 208                  */
 209                 set_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags);
 210         }
 211         iforce->core_effects[effect->id].effect = *effect;
 212         return ret;
 213 }
 214
 215 /*
 216  * Erases an effect: it frees the effect id and mark as unused the memory
 217  * allocated for the parameters
 218  */
 219 static int iforce_erase_effect(struct input_dev *dev, int effect_id)
 220 {
 221         struct iforce* iforce = (struct iforce*)(dev->private);
 222         int err = 0;
 223         struct iforce_core_effect* core_effect;
 224
 225         /* Check who is trying to erase this effect */
 226         if (iforce->core_effects[effect_id].owner != current->pid) {
 227                 printk(KERN_WARNING "iforce-main.c: %d tried to erase an effect belonging to %d\n", current->pid, iforce->core_effects[effect_id].owner);
 228                 return -EACCES;
 229         }
 230
 231         if (effect_id < 0 || effect_id >= FF_EFFECTS_MAX)
 232                 return -EINVAL;
 233
 234         core_effect = iforce->core_effects + effect_id;
 235
 236         if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
 237                 err = release_resource(&(iforce->core_effects[effect_id].mod1_chunk));
 238
 239         if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
 240                 err = release_resource(&(iforce->core_effects[effect_id].mod2_chunk));
 241
 242         /*TODO: remember to change that if more FF_MOD* bits are added */
 243         core_effect->flags[0] = 0;
 244
 245         return err;
 246 }
 247
 248 static int iforce_open(struct input_dev *dev)
 249 {
 250         struct iforce *iforce = dev->private;
 251
 252         switch (iforce->bus) {
 253 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 254                 case IFORCE_USB:
 255                         iforce->irq->dev = iforce->usbdev;
 256                         if (usb_submit_urb(iforce->irq, GFP_KERNEL))
 257                                 return -EIO;
 258                         break;
 259 #endif
 260         }
 261
 262         /* Enable force feedback */
 263         iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
 264
 265         return 0;
 266 }
 267
 268 static int iforce_flush(struct input_dev *dev, struct file *file)
 269 {
 270         struct iforce *iforce = dev->private;
 271         int i;
 272
 273         /* Erase all effects this process owns */
 274         for (i=0; i<dev->ff_effects_max; ++i) {
 275
 276                 if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
 277                         current->pid == iforce->core_effects[i].owner) {
 278
 279                         /* Stop effect */
 280                         input_report_ff(dev, i, 0);
 281
 282                         /* Free ressources assigned to effect */
 283                         if (iforce_erase_effect(dev, i)) {
 284                                 printk(KERN_WARNING "iforce_flush: erase effect %d failed\n", i);
 285                         }
 286                 }
 287
 288         }
 289         return 0;
 290 }
 291
 292 static void iforce_release(struct input_dev *dev)
 293 {
 294         struct iforce *iforce = dev->private;
 295         int i;
 296
 297         /* Check: no effect should be present in memory */
 298         for (i=0; i<dev->ff_effects_max; ++i) {
 299                 if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags))
 300                         break;
 301         }
 302         if (i<dev->ff_effects_max) {
 303                 printk(KERN_WARNING "iforce_release: Device still owns effects\n");
 304         }
 305
 306         /* Disable force feedback playback */
 307         iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
 308
 309         switch (iforce->bus) {
 310 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 311                 case IFORCE_USB:
 312                         usb_unlink_urb(iforce->irq);
 313
 314                         /* The device was unplugged before the file
 315                          * was released */
 316                         if (iforce->usbdev == NULL) {
 317                                 iforce_delete_device(iforce);
 318                                 kfree(iforce);
 319                         }
 320                 break;
 321 #endif
 322         }
 323 }
 324
 325 void iforce_delete_device(struct iforce *iforce)
 326 {
 327         switch (iforce->bus) {
 328 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 329         case IFORCE_USB:
 330                 iforce_usb_delete(iforce);
 331                 break;
 332 #endif
 333 #ifdef CONFIG_JOYSTICK_IFORCE_232
 334         case IFORCE_232:
 335                 //TODO: Wait for the last packets to be sent
 336                 break;
 337 #endif
 338         }
 339 }
 340
 341 int iforce_init_device(struct iforce *iforce)
 342 {
 343         struct input_dev *input_dev;
 344         unsigned char c[] = "CEOV";
 345         int i;
 346
 347         input_dev = input_allocate_device();
 348         if (input_dev)
 349                 return -ENOMEM;
 350
 351         init_waitqueue_head(&iforce->wait);
 352         spin_lock_init(&iforce->xmit_lock);
 353         init_MUTEX(&iforce->mem_mutex);
 354         iforce->xmit.buf = iforce->xmit_data;
 355         iforce->dev = input_dev;
 356
 357 /*
 358  * Input device fields.
 359  */
 360
 361         switch (iforce->bus) {
 362 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 363         case IFORCE_USB:
 364                 input_dev->id.bustype = BUS_USB;
 365                 input_dev->cdev.dev = &iforce->usbdev->dev;
 366                 break;
 367 #endif
 368 #ifdef CONFIG_JOYSTICK_IFORCE_232
 369         case IFORCE_232:
 370                 input_dev->id.bustype = BUS_RS232;
 371                 input_dev->cdev.dev = &iforce->serio->dev;
 372                 break;
 373 #endif
 374         }
 375
 376         input_dev->private = iforce;
 377         input_dev->name = "Unknown I-Force device";
 378         input_dev->open = iforce_open;
 379         input_dev->close = iforce_release;
 380         input_dev->flush = iforce_flush;
 381         input_dev->event = iforce_input_event;
 382         input_dev->upload_effect = iforce_upload_effect;
 383         input_dev->erase_effect = iforce_erase_effect;
 384         input_dev->ff_effects_max = 10;
 385
 386 /*
 387  * On-device memory allocation.
 388  */
 389
 390         iforce->device_memory.name = "I-Force device effect memory";
 391         iforce->device_memory.start = 0;
 392         iforce->device_memory.end = 200;
 393         iforce->device_memory.flags = IORESOURCE_MEM;
 394         iforce->device_memory.parent = NULL;
 395         iforce->device_memory.child = NULL;
 396         iforce->device_memory.sibling = NULL;
 397
 398 /*
 399  * Wait until device ready - until it sends its first response.
 400  */
 401
 402         for (i = 0; i < 20; i++)
 403                 if (!iforce_get_id_packet(iforce, "O"))
 404                         break;
 405
 406         if (i == 20) { /* 5 seconds */
 407                 printk(KERN_ERR "iforce-main.c: Timeout waiting for response from device.\n");
 408                 input_free_device(input_dev);
 409                 return -ENODEV;
 410         }
 411
 412 /*
 413  * Get device info.
 414  */
 415
 416         if (!iforce_get_id_packet(iforce, "M"))
 417                 input_dev->id.vendor = (iforce->edata[2] << 8) | iforce->edata[1];
 418         else
 419                 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet M\n");
 420
 421         if (!iforce_get_id_packet(iforce, "P"))
 422                 input_dev->id.product = (iforce->edata[2] << 8) | iforce->edata[1];
 423         else
 424                 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet P\n");
 425
 426         if (!iforce_get_id_packet(iforce, "B"))
 427                 iforce->device_memory.end = (iforce->edata[2] << 8) | iforce->edata[1];
 428         else
 429                 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet B\n");
 430
 431         if (!iforce_get_id_packet(iforce, "N"))
 432                 iforce->dev->ff_effects_max = iforce->edata[1];
 433         else
 434                 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet N\n");
 435
 436         /* Check if the device can store more effects than the driver can really handle */
 437         if (iforce->dev->ff_effects_max > FF_EFFECTS_MAX) {
 438                 printk(KERN_WARNING "input??: Device can handle %d effects, but N_EFFECTS_MAX is set to %d in iforce.h\n",
 439                         iforce->dev->ff_effects_max, FF_EFFECTS_MAX);
 440                 iforce->dev->ff_effects_max = FF_EFFECTS_MAX;
 441         }
 442
 443 /*
 444  * Display additional info.
 445  */
 446
 447         for (i = 0; c[i]; i++)
 448                 if (!iforce_get_id_packet(iforce, c + i))
 449                         iforce_dump_packet("info", iforce->ecmd, iforce->edata);
 450
 451 /*
 452  * Disable spring, enable force feedback.
 453  * FIXME: We should use iforce_set_autocenter() et al here.
 454  */
 455
 456         iforce_send_packet(iforce, FF_CMD_AUTOCENTER, "\004\000");
 457
 458 /*
 459  * Find appropriate device entry
 460  */
 461
 462         for (i = 0; iforce_device[i].idvendor; i++)
 463                 if (iforce_device[i].idvendor == input_dev->id.vendor &&
 464                     iforce_device[i].idproduct == input_dev->id.product)
 465                         break;
 466
 467         iforce->type = iforce_device + i;
 468         input_dev->name = iforce->type->name;
 469
 470 /*
 471  * Set input device bitfields and ranges.
 472  */
 473
 474         input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_FF) | BIT(EV_FF_STATUS);
 475
 476         for (i = 0; iforce->type->btn[i] >= 0; i++) {
 477                 signed short t = iforce->type->btn[i];
 478                 set_bit(t, input_dev->keybit);
 479         }
 480         set_bit(BTN_DEAD, input_dev->keybit);
 481
 482         for (i = 0; iforce->type->abs[i] >= 0; i++) {
 483
 484                 signed short t = iforce->type->abs[i];
 485
 486                 switch (t) {
 487
 488                         case ABS_X:
 489                         case ABS_Y:
 490                         case ABS_WHEEL:
 491
 492                                 input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
 493                                 set_bit(t, input_dev->ffbit);
 494                                 break;
 495
 496                         case ABS_THROTTLE:
 497                         case ABS_GAS:
 498                         case ABS_BRAKE:
 499
 500                                 input_set_abs_params(input_dev, t, 0, 255, 0, 0);
 501                                 break;
 502
 503                         case ABS_RUDDER:
 504
 505                                 input_set_abs_params(input_dev, t, -128, 127, 0, 0);
 506                                 break;
 507
 508                         case ABS_HAT0X:
 509                         case ABS_HAT0Y:
 510                         case ABS_HAT1X:
 511                         case ABS_HAT1Y:
 512
 513                                 input_set_abs_params(input_dev, t, -1, 1, 0, 0);
 514                                 break;
 515                 }
 516         }
 517
 518         for (i = 0; iforce->type->ff[i] >= 0; i++)
 519                 set_bit(iforce->type->ff[i], input_dev->ffbit);
 520
 521 /*
 522  * Register input device.
 523  */
 524
 525         input_register_device(iforce->dev);
 526
 527         printk(KERN_DEBUG "iforce->dev->open = %p\n", iforce->dev->open);
 528
 529         return 0;
 530 }
 531
 532 static int __init iforce_init(void)
 533 {
 534 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 535         usb_register(&iforce_usb_driver);
 536 #endif
 537 #ifdef CONFIG_JOYSTICK_IFORCE_232
 538         serio_register_driver(&iforce_serio_drv);
 539 #endif
 540         return 0;
 541 }
 542
 543 static void __exit iforce_exit(void)
 544 {
 545 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 546         usb_deregister(&iforce_usb_driver);
 547 #endif
 548 #ifdef CONFIG_JOYSTICK_IFORCE_232
 549         serio_unregister_driver(&iforce_serio_drv);
 550 #endif
 551 }
 552
 553 module_init(iforce_init);
 554 module_exit(iforce_exit);