release/src-rt-6.x/linux/linux-2.6/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, 2007 Johann Deneux <johann.deneux@gmail.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 <johann.deneux@gmail.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         { 0x06d6, 0x29bc, "Trust Force Feedback Race Master",           btn_wheel, abs_wheel, ff_iforce },
  83         { 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]",         btn_joystick, abs_joystick, ff_iforce }
  84 };
  85
  86 static int iforce_playback(struct input_dev *dev, int effect_id, int value)
  87 {
  88         struct iforce* iforce = dev->private;
  89         struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
  90
  91         if (value > 0)
  92                 set_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
  93         else
  94                 clear_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
  95
  96         iforce_control_playback(iforce, effect_id, value);
  97         return 0;
  98 }
  99
 100 static void iforce_set_gain(struct input_dev *dev, u16 gain)
 101 {
 102         struct iforce* iforce = dev->private;
 103         unsigned char data[3];
 104
 105         data[0] = gain >> 9;
 106         iforce_send_packet(iforce, FF_CMD_GAIN, data);
 107 }
 108
 109 static void iforce_set_autocenter(struct input_dev *dev, u16 magnitude)
 110 {
 111         struct iforce* iforce = dev->private;
 112         unsigned char data[3];
 113
 114         data[0] = 0x03;
 115         data[1] = magnitude >> 9;
 116         iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
 117
 118         data[0] = 0x04;
 119         data[1] = 0x01;
 120         iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
 121 }
 122
 123 /*
 124  * Function called when an ioctl is performed on the event dev entry.
 125  * It uploads an effect to the device
 126  */
 127 static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
 128 {
 129         struct iforce* iforce = dev->private;
 130         struct iforce_core_effect *core_effect = &iforce->core_effects[effect->id];
 131         int ret;
 132
 133         if (__test_and_set_bit(FF_CORE_IS_USED, core_effect->flags)) {
 134                 /* Check the effect is not already being updated */
 135                 if (test_bit(FF_CORE_UPDATE, core_effect->flags))
 136                         return -EAGAIN;
 137         }
 138
 139 /*
 140  * Upload the effect
 141  */
 142         switch (effect->type) {
 143
 144                 case FF_PERIODIC:
 145                         ret = iforce_upload_periodic(iforce, effect, old);
 146                         break;
 147
 148                 case FF_CONSTANT:
 149                         ret = iforce_upload_constant(iforce, effect, old);
 150                         break;
 151
 152                 case FF_SPRING:
 153                 case FF_DAMPER:
 154                         ret = iforce_upload_condition(iforce, effect, old);
 155                         break;
 156
 157                 default:
 158                         return -EINVAL;
 159         }
 160
 161         if (ret == 0) {
 162                 /* A packet was sent, forbid new updates until we are notified
 163                  * that the packet was updated
 164                  */
 165                 set_bit(FF_CORE_UPDATE, core_effect->flags);
 166         }
 167         return ret;
 168 }
 169
 170 /*
 171  * Erases an effect: it frees the effect id and mark as unused the memory
 172  * allocated for the parameters
 173  */
 174 static int iforce_erase_effect(struct input_dev *dev, int effect_id)
 175 {
 176         struct iforce *iforce = dev->private;
 177         struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
 178         int err = 0;
 179
 180         if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
 181                 err = release_resource(&core_effect->mod1_chunk);
 182
 183         if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
 184                 err = release_resource(&core_effect->mod2_chunk);
 185
 186         /* TODO: remember to change that if more FF_MOD* bits are added */
 187         core_effect->flags[0] = 0;
 188
 189         return err;
 190 }
 191
 192 static int iforce_open(struct input_dev *dev)
 193 {
 194         struct iforce *iforce = dev->private;
 195
 196         switch (iforce->bus) {
 197 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 198                 case IFORCE_USB:
 199                         iforce->irq->dev = iforce->usbdev;
 200                         if (usb_submit_urb(iforce->irq, GFP_KERNEL))
 201                                 return -EIO;
 202                         break;
 203 #endif
 204         }
 205
 206         if (test_bit(EV_FF, dev->evbit)) {
 207                 /* Enable force feedback */
 208                 iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
 209         }
 210
 211         return 0;
 212 }
 213
 214 static void iforce_release(struct input_dev *dev)
 215 {
 216         struct iforce *iforce = dev->private;
 217         int i;
 218
 219         if (test_bit(EV_FF, dev->evbit)) {
 220                 /* Check: no effects should be present in memory */
 221                 for (i = 0; i < dev->ff->max_effects; i++) {
 222                         if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags)) {
 223                                 warn("iforce_release: Device still owns effects");
 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_dev->private = iforce;
 302         input_dev->name = "Unknown I-Force device";
 303         input_dev->open = iforce_open;
 304         input_dev->close = iforce_release;
 305
 306 /*
 307  * On-device memory allocation.
 308  */
 309
 310         iforce->device_memory.name = "I-Force device effect memory";
 311         iforce->device_memory.start = 0;
 312         iforce->device_memory.end = 200;
 313         iforce->device_memory.flags = IORESOURCE_MEM;
 314         iforce->device_memory.parent = NULL;
 315         iforce->device_memory.child = NULL;
 316         iforce->device_memory.sibling = NULL;
 317
 318 /*
 319  * Wait until device ready - until it sends its first response.
 320  */
 321
 322         for (i = 0; i < 20; i++)
 323                 if (!iforce_get_id_packet(iforce, "O"))
 324                         break;
 325
 326         if (i == 20) { /* 5 seconds */
 327                 err("Timeout waiting for response from device.");
 328                 error = -ENODEV;
 329                 goto fail;
 330         }
 331
 332 /*
 333  * Get device info.
 334  */
 335
 336         if (!iforce_get_id_packet(iforce, "M"))
 337                 input_dev->id.vendor = (iforce->edata[2] << 8) | iforce->edata[1];
 338         else
 339                 warn("Device does not respond to id packet M");
 340
 341         if (!iforce_get_id_packet(iforce, "P"))
 342                 input_dev->id.product = (iforce->edata[2] << 8) | iforce->edata[1];
 343         else
 344                 warn("Device does not respond to id packet P");
 345
 346         if (!iforce_get_id_packet(iforce, "B"))
 347                 iforce->device_memory.end = (iforce->edata[2] << 8) | iforce->edata[1];
 348         else
 349                 warn("Device does not respond to id packet B");
 350
 351         if (!iforce_get_id_packet(iforce, "N"))
 352                 ff_effects = iforce->edata[1];
 353         else
 354                 warn("Device does not respond to id packet N");
 355
 356         /* Check if the device can store more effects than the driver can really handle */
 357         if (ff_effects > IFORCE_EFFECTS_MAX) {
 358                 warn("Limiting number of effects to %d (device reports %d)",
 359                        IFORCE_EFFECTS_MAX, ff_effects);
 360                 ff_effects = IFORCE_EFFECTS_MAX;
 361         }
 362
 363 /*
 364  * Display additional info.
 365  */
 366
 367         for (i = 0; c[i]; i++)
 368                 if (!iforce_get_id_packet(iforce, c + i))
 369                         iforce_dump_packet("info", iforce->ecmd, iforce->edata);
 370
 371 /*
 372  * Disable spring, enable force feedback.
 373  */
 374         iforce_set_autocenter(input_dev, 0);
 375
 376 /*
 377  * Find appropriate device entry
 378  */
 379
 380         for (i = 0; iforce_device[i].idvendor; i++)
 381                 if (iforce_device[i].idvendor == input_dev->id.vendor &&
 382                     iforce_device[i].idproduct == input_dev->id.product)
 383                         break;
 384
 385         iforce->type = iforce_device + i;
 386         input_dev->name = iforce->type->name;
 387
 388 /*
 389  * Set input device bitfields and ranges.
 390  */
 391
 392         input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) |
 393                 BIT_MASK(EV_FF_STATUS);
 394
 395         for (i = 0; iforce->type->btn[i] >= 0; i++)
 396                 set_bit(iforce->type->btn[i], input_dev->keybit);
 397         set_bit(BTN_DEAD, input_dev->keybit);
 398
 399         for (i = 0; iforce->type->abs[i] >= 0; i++) {
 400
 401                 signed short t = iforce->type->abs[i];
 402
 403                 switch (t) {
 404
 405                         case ABS_X:
 406                         case ABS_Y:
 407                         case ABS_WHEEL:
 408
 409                                 input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
 410                                 set_bit(t, input_dev->ffbit);
 411                                 break;
 412
 413                         case ABS_THROTTLE:
 414                         case ABS_GAS:
 415                         case ABS_BRAKE:
 416
 417                                 input_set_abs_params(input_dev, t, 0, 255, 0, 0);
 418                                 break;
 419
 420                         case ABS_RUDDER:
 421
 422                                 input_set_abs_params(input_dev, t, -128, 127, 0, 0);
 423                                 break;
 424
 425                         case ABS_HAT0X:
 426                         case ABS_HAT0Y:
 427                         case ABS_HAT1X:
 428                         case ABS_HAT1Y:
 429
 430                                 input_set_abs_params(input_dev, t, -1, 1, 0, 0);
 431                                 break;
 432                 }
 433         }
 434
 435         if (ff_effects) {
 436
 437                 for (i = 0; iforce->type->ff[i] >= 0; i++)
 438                         set_bit(iforce->type->ff[i], input_dev->ffbit);
 439
 440                 error = input_ff_create(input_dev, ff_effects);
 441                 if (error)
 442                         goto fail;
 443
 444                 ff = input_dev->ff;
 445                 ff->upload = iforce_upload_effect;
 446                 ff->erase = iforce_erase_effect;
 447                 ff->set_gain = iforce_set_gain;
 448                 ff->set_autocenter = iforce_set_autocenter;
 449                 ff->playback = iforce_playback;
 450         }
 451 /*
 452  * Register input device.
 453  */
 454
 455         error = input_register_device(iforce->dev);
 456         if (error)
 457                 goto fail;
 458
 459         return 0;
 460
 461  fail:  input_free_device(input_dev);
 462         return error;
 463 }
 464
 465 static int __init iforce_init(void)
 466 {
 467         int err = 0;
 468
 469 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 470         err = usb_register(&iforce_usb_driver);
 471         if (err)
 472                 return err;
 473 #endif
 474 #ifdef CONFIG_JOYSTICK_IFORCE_232
 475         err = serio_register_driver(&iforce_serio_drv);
 476 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 477         if (err)
 478                 usb_deregister(&iforce_usb_driver);
 479 #endif
 480 #endif
 481         return err;
 482 }
 483
 484 static void __exit iforce_exit(void)
 485 {
 486 #ifdef CONFIG_JOYSTICK_IFORCE_USB
 487         usb_deregister(&iforce_usb_driver);
 488 #endif
 489 #ifdef CONFIG_JOYSTICK_IFORCE_232
 490         serio_unregister_driver(&iforce_serio_drv);
 491 #endif
 492 }
 493
 494 module_init(iforce_init);
 495 module_exit(iforce_exit);