1 /* 2 * X-Box gamepad - v0.0.6 3 * 4 * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de> 5 * 2004 Oliver Schwartz <Oliver.Schwartz@gmx.de>, 6 * Steven Toth <steve@toth.demon.co.uk>, 7 * Franz Lehner <franz@caos.at>, 8 * Ivan Hawkes <blackhawk@ivanhawkes.com> 9 * 2005 Dominic Cerquetti <binary1230@yahoo.com> 10 * 2006 Adam Buchbinder <adam.buchbinder@gmail.com> 11 * 2007 Jan Kratochvil <honza@jikos.cz> 12 * 13 * This program is free software; you can redistribute it and/or 14 * modify it under the terms of the GNU General Public License as 15 * published by the Free Software Foundation; either version 2 of 16 * the License, or (at your option) any later version. 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 * 23 * You should have received a copy of the GNU General Public License 24 * along with this program; if not, write to the Free Software 25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 26 * 27 * 28 * This driver is based on: 29 * - information from http://euc.jp/periphs/xbox-controller.ja.html 30 * - the iForce driver drivers/char/joystick/iforce.c 31 * - the skeleton-driver drivers/usb/usb-skeleton.c 32 * - Xbox 360 information http://www.free60.org/wiki/Gamepad 33 * 34 * Thanks to: 35 * - ITO Takayuki for providing essential xpad information on his website 36 * - Vojtech Pavlik - iforce driver / input subsystem 37 * - Greg Kroah-Hartman - usb-skeleton driver 38 * - XBOX Linux project - extra USB id's 39 * 40 * TODO: 41 * - fine tune axes (especially trigger axes) 42 * - fix "analog" buttons (reported as digital now) 43 * - get rumble working 44 * - need USB IDs for other dance pads 45 * 46 * History: 47 * 48 * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller" 49 * 50 * 2002-07-02 - 0.0.2 : basic working version 51 * - all axes and 9 of the 10 buttons work (german InterAct device) 52 * - the black button does not work 53 * 54 * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik 55 * - indentation fixes 56 * - usb + input init sequence fixes 57 * 58 * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3 59 * - verified the lack of HID and report descriptors 60 * - verified that ALL buttons WORK 61 * - fixed d-pad to axes mapping 62 * 63 * 2002-07-17 - 0.0.5 : simplified d-pad handling 64 * 65 * 2004-10-02 - 0.0.6 : DDR pad support 66 * - borrowed from the XBOX linux kernel 67 * - USB id's for commonly used dance pads are present 68 * - dance pads will map D-PAD to buttons, not axes 69 * - pass the module paramater 'dpad_to_buttons' to force 70 * the D-PAD to map to buttons if your pad is not detected 71 */ 72 73 #include <linux/kernel.h> 74 #include <linux/init.h> 75 #include <linux/slab.h> 76 #include <linux/stat.h> 77 #include <linux/module.h> 78 #include <linux/moduleparam.h> 79 #include <linux/usb/input.h> 80 81 #define DRIVER_VERSION "v0.0.6" 82 #define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>" 83 #define DRIVER_DESC "X-Box pad driver" 84 85 #define XPAD_PKT_LEN 32 86 87 /* xbox d-pads should map to buttons, as is required for DDR pads 88 but we map them to axes when possible to simplify things */ 89 #define MAP_DPAD_TO_BUTTONS 0 90 #define MAP_DPAD_TO_AXES 1 91 #define MAP_DPAD_UNKNOWN -1 92 93 #define XTYPE_XBOX 0 94 #define XTYPE_XBOX360 1 95 96 static int dpad_to_buttons; 97 module_param(dpad_to_buttons, bool, S_IRUGO); 98 MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads"); 99 100 static const struct xpad_device { 101 u16 idVendor; 102 u16 idProduct; 103 char *name; 104 u8 dpad_mapping; 105 u8 xtype; 106 } xpad_device[] = { 107 { 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 108 { 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 109 { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 110 { 0x045e, 0x0287, "Microsoft Xbox Controller S", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 111 { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, 112 { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 113 { 0x046d, 0xca84, "Logitech Xbox Cordless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 114 { 0x046d, 0xca88, "Logitech Compact Controller for Xbox", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 115 { 0x05fd, 0x1007, "Mad Catz Controller (unverified)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 116 { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 117 { 0x0738, 0x4516, "Mad Catz Control Pad", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 118 { 0x0738, 0x4522, "Mad Catz LumiCON", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 119 { 0x0738, 0x4526, "Mad Catz Control Pad Pro", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 120 { 0x0738, 0x4536, "Mad Catz MicroCON", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 121 { 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, 122 { 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 123 { 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, 124 { 0x0c12, 0x8802, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 125 { 0x0c12, 0x8810, "Zeroplus Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 126 { 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 127 { 0x0e4c, 0x1097, "Radica Gamester Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 128 { 0x0e4c, 0x2390, "Radica Games Jtech Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 129 { 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 130 { 0x0e6f, 0x0005, "Eclipse wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 131 { 0x0e6f, 0x0006, "Edge wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 132 { 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 133 { 0x0f30, 0x0202, "Joytech Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 134 { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 135 { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 136 { 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, 137 { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, 138 { 0x045e, 0x028e, "Microsoft X-Box 360 pad", MAP_DPAD_TO_AXES, XTYPE_XBOX360 }, 139 { 0xffff, 0xffff, "Chinese-made Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 140 { 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN, XTYPE_XBOX } 141 }; 142 143 static const signed short xpad_btn[] = { 144 BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, /* "analog" buttons */ 145 BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */ 146 -1 /* terminating entry */ 147 }; 148 149 /* only used if MAP_DPAD_TO_BUTTONS */ 150 static const signed short xpad_btn_pad[] = { 151 BTN_LEFT, BTN_RIGHT, /* d-pad left, right */ 152 BTN_0, BTN_1, /* d-pad up, down (XXX names??) */ 153 -1 /* terminating entry */ 154 }; 155 156 static const signed short xpad360_btn[] = { /* buttons for x360 controller */ 157 BTN_TL, BTN_TR, /* Button LB/RB */ 158 BTN_MODE, /* The big X button */ 159 -1 160 }; 161 162 static const signed short xpad_abs[] = { 163 ABS_X, ABS_Y, /* left stick */ 164 ABS_RX, ABS_RY, /* right stick */ 165 ABS_Z, ABS_RZ, /* triggers left/right */ 166 -1 /* terminating entry */ 167 }; 168 169 /* only used if MAP_DPAD_TO_AXES */ 170 static const signed short xpad_abs_pad[] = { 171 ABS_HAT0X, ABS_HAT0Y, /* d-pad axes */ 172 -1 /* terminating entry */ 173 }; 174 175 /* Xbox 360 has a vendor-specific (sub)class, so we cannot match it with only 176 * USB_INTERFACE_INFO, more to that this device has 4 InterfaceProtocols, 177 * but we need only one of them. */ 178 static struct usb_device_id xpad_table [] = { 179 { USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */ 180 { USB_DEVICE_INTERFACE_PROTOCOL(0x045e, 0x028e, 1) }, /* X-Box 360 controller */ 181 { } 182 }; 183 184 MODULE_DEVICE_TABLE (usb, xpad_table); 185 186 struct usb_xpad { 187 struct input_dev *dev; /* input device interface */ 188 struct usb_device *udev; /* usb device */ 189 190 struct urb *irq_in; /* urb for interrupt in report */ 191 unsigned char *idata; /* input data */ 192 dma_addr_t idata_dma; 193 194 #if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS) 195 struct urb *irq_out; /* urb for interrupt out report */ 196 unsigned char *odata; /* output data */ 197 dma_addr_t odata_dma; 198 struct mutex odata_mutex; 199 #endif 200 201 #if defined(CONFIG_JOYSTICK_XPAD_LEDS) 202 struct xpad_led *led; 203 #endif 204 205 char phys[64]; /* physical device path */ 206 207 int dpad_mapping; /* map d-pad to buttons or to axes */ 208 int xtype; /* type of xbox device */ 209 }; 210 211 /* 212 * xpad_process_packet 213 * 214 * Completes a request by converting the data into events for the 215 * input subsystem. 216 * 217 * The used report descriptor was taken from ITO Takayukis website: 218 * http://euc.jp/periphs/xbox-controller.ja.html 219 */ 220 221 static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data) 222 { 223 struct input_dev *dev = xpad->dev; 224 225 /* left stick */ 226 input_report_abs(dev, ABS_X, 227 (__s16) le16_to_cpup((__le16 *)(data + 12))); 228 input_report_abs(dev, ABS_Y, 229 (__s16) le16_to_cpup((__le16 *)(data + 14))); 230 231 /* right stick */ 232 input_report_abs(dev, ABS_RX, 233 (__s16) le16_to_cpup((__le16 *)(data + 16))); 234 input_report_abs(dev, ABS_RY, 235 (__s16) le16_to_cpup((__le16 *)(data + 18))); 236 237 /* triggers left/right */ 238 input_report_abs(dev, ABS_Z, data[10]); 239 input_report_abs(dev, ABS_RZ, data[11]); 240 241 /* digital pad */ 242 if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) { 243 input_report_abs(dev, ABS_HAT0X, 244 !!(data[2] & 0x08) - !!(data[2] & 0x04)); 245 input_report_abs(dev, ABS_HAT0Y, 246 !!(data[2] & 0x02) - !!(data[2] & 0x01)); 247 } else /* xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS */ { 248 input_report_key(dev, BTN_LEFT, data[2] & 0x04); 249 input_report_key(dev, BTN_RIGHT, data[2] & 0x08); 250 input_report_key(dev, BTN_0, data[2] & 0x01); /* up */ 251 input_report_key(dev, BTN_1, data[2] & 0x02); /* down */ 252 } 253 254 /* start/back buttons and stick press left/right */ 255 input_report_key(dev, BTN_START, data[2] & 0x10); 256 input_report_key(dev, BTN_BACK, data[2] & 0x20); 257 input_report_key(dev, BTN_THUMBL, data[2] & 0x40); 258 input_report_key(dev, BTN_THUMBR, data[2] & 0x80); 259 260 /* "analog" buttons A, B, X, Y */ 261 input_report_key(dev, BTN_A, data[4]); 262 input_report_key(dev, BTN_B, data[5]); 263 input_report_key(dev, BTN_X, data[6]); 264 input_report_key(dev, BTN_Y, data[7]); 265 266 /* "analog" buttons black, white */ 267 input_report_key(dev, BTN_C, data[8]); 268 input_report_key(dev, BTN_Z, data[9]); 269 270 input_sync(dev); 271 } 272 273 /* 274 * xpad360_process_packet 275 * 276 * Completes a request by converting the data into events for the 277 * input subsystem. It is version for xbox 360 controller 278 * 279 * The used report descriptor was taken from: 280 * http://www.free60.org/wiki/Gamepad 281 */ 282 283 static void xpad360_process_packet(struct usb_xpad *xpad, 284 u16 cmd, unsigned char *data) 285 { 286 struct input_dev *dev = xpad->dev; 287 288 /* digital pad */ 289 if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) { 290 input_report_abs(dev, ABS_HAT0X, 291 !!(data[2] & 0x08) - !!(data[2] & 0x04)); 292 input_report_abs(dev, ABS_HAT0Y, 293 !!(data[2] & 0x02) - !!(data[2] & 0x01)); 294 } else if (xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS) { 295 /* dpad as buttons (right, left, down, up) */ 296 input_report_key(dev, BTN_LEFT, data[2] & 0x04); 297 input_report_key(dev, BTN_RIGHT, data[2] & 0x08); 298 input_report_key(dev, BTN_0, data[2] & 0x01); /* up */ 299 input_report_key(dev, BTN_1, data[2] & 0x02); /* down */ 300 } 301 302 /* start/back buttons */ 303 input_report_key(dev, BTN_START, data[2] & 0x10); 304 input_report_key(dev, BTN_BACK, data[2] & 0x20); 305 306 /* stick press left/right */ 307 input_report_key(dev, BTN_THUMBL, data[2] & 0x40); 308 input_report_key(dev, BTN_THUMBR, data[2] & 0x80); 309 310 /* buttons A,B,X,Y,TL,TR and MODE */ 311 input_report_key(dev, BTN_A, data[3] & 0x10); 312 input_report_key(dev, BTN_B, data[3] & 0x20); 313 input_report_key(dev, BTN_X, data[3] & 0x40); 314 input_report_key(dev, BTN_Y, data[3] & 0x80); 315 input_report_key(dev, BTN_TL, data[3] & 0x01); 316 input_report_key(dev, BTN_TR, data[3] & 0x02); 317 input_report_key(dev, BTN_MODE, data[3] & 0x04); 318 319 /* left stick */ 320 input_report_abs(dev, ABS_X, 321 (__s16) le16_to_cpup((__le16 *)(data + 6))); 322 input_report_abs(dev, ABS_Y, 323 (__s16) le16_to_cpup((__le16 *)(data + 8))); 324 325 /* right stick */ 326 input_report_abs(dev, ABS_RX, 327 (__s16) le16_to_cpup((__le16 *)(data + 10))); 328 input_report_abs(dev, ABS_RY, 329 (__s16) le16_to_cpup((__le16 *)(data + 12))); 330 331 /* triggers left/right */ 332 input_report_abs(dev, ABS_Z, data[4]); 333 input_report_abs(dev, ABS_RZ, data[5]); 334 335 input_sync(dev); 336 } 337 338 static void xpad_irq_in(struct urb *urb) 339 { 340 struct usb_xpad *xpad = urb->context; 341 int retval; 342 343 switch (urb->status) { 344 case 0: 345 /* success */ 346 break; 347 case -ECONNRESET: 348 case -ENOENT: 349 case -ESHUTDOWN: 350 /* this urb is terminated, clean up */ 351 dbg("%s - urb shutting down with status: %d", 352 __FUNCTION__, urb->status); 353 return; 354 default: 355 dbg("%s - nonzero urb status received: %d", 356 __FUNCTION__, urb->status); 357 goto exit; 358 } 359 360 if (xpad->xtype == XTYPE_XBOX360) 361 xpad360_process_packet(xpad, 0, xpad->idata); 362 else 363 xpad_process_packet(xpad, 0, xpad->idata); 364 365 exit: 366 retval = usb_submit_urb (urb, GFP_ATOMIC); 367 if (retval) 368 err ("%s - usb_submit_urb failed with result %d", 369 __FUNCTION__, retval); 370 } 371 372 #if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS) 373 static void xpad_irq_out(struct urb *urb) 374 { 375 int retval; 376 377 switch (urb->status) { 378 case 0: 379 /* success */ 380 break; 381 case -ECONNRESET: 382 case -ENOENT: 383 case -ESHUTDOWN: 384 /* this urb is terminated, clean up */ 385 dbg("%s - urb shutting down with status: %d", 386 __FUNCTION__, urb->status); 387 return; 388 default: 389 dbg("%s - nonzero urb status received: %d", 390 __FUNCTION__, urb->status); 391 goto exit; 392 } 393 394 exit: 395 retval = usb_submit_urb(urb, GFP_ATOMIC); 396 if (retval) 397 err("%s - usb_submit_urb failed with result %d", 398 __FUNCTION__, retval); 399 } 400 401 static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) 402 { 403 struct usb_endpoint_descriptor *ep_irq_out; 404 int error = -ENOMEM; 405 406 if (xpad->xtype != XTYPE_XBOX360) 407 return 0; 408 409 xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN, 410 GFP_ATOMIC, &xpad->odata_dma ); 411 if (!xpad->odata) 412 goto fail1; 413 414 mutex_init(&xpad->odata_mutex); 415 416 xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL); 417 if (!xpad->irq_out) 418 goto fail2; 419 420 ep_irq_out = &intf->cur_altsetting->endpoint[1].desc; 421 usb_fill_int_urb(xpad->irq_out, xpad->udev, 422 usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress), 423 xpad->odata, XPAD_PKT_LEN, 424 xpad_irq_out, xpad, ep_irq_out->bInterval); 425 xpad->irq_out->transfer_dma = xpad->odata_dma; 426 xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 427 428 return 0; 429 430 fail2: usb_buffer_free(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma); 431 fail1: return error; 432 } 433 434 static void xpad_stop_output(struct usb_xpad *xpad) 435 { 436 if (xpad->xtype == XTYPE_XBOX360) 437 usb_kill_urb(xpad->irq_out); 438 } 439 440 static void xpad_deinit_output(struct usb_xpad *xpad) 441 { 442 if (xpad->xtype == XTYPE_XBOX360) { 443 usb_free_urb(xpad->irq_out); 444 usb_buffer_free(xpad->udev, XPAD_PKT_LEN, 445 xpad->odata, xpad->odata_dma); 446 } 447 } 448 #else 449 static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; } 450 static void xpad_deinit_output(struct usb_xpad *xpad) {} 451 static void xpad_stop_output(struct usb_xpad *xpad) {} 452 #endif 453 454 #ifdef CONFIG_JOYSTICK_XPAD_FF 455 static int xpad_play_effect(struct input_dev *dev, void *data, 456 struct ff_effect *effect) 457 { 458 struct usb_xpad *xpad = input_get_drvdata(dev); 459 460 if (effect->type == FF_RUMBLE) { 461 __u16 strong = effect->u.rumble.strong_magnitude; 462 __u16 weak = effect->u.rumble.weak_magnitude; 463 xpad->odata[0] = 0x00; 464 xpad->odata[1] = 0x08; 465 xpad->odata[2] = 0x00; 466 xpad->odata[3] = strong / 256; 467 xpad->odata[4] = weak / 256; 468 xpad->odata[5] = 0x00; 469 xpad->odata[6] = 0x00; 470 xpad->odata[7] = 0x00; 471 usb_submit_urb(xpad->irq_out, GFP_KERNEL); 472 } 473 474 return 0; 475 } 476 477 static int xpad_init_ff(struct usb_xpad *xpad) 478 { 479 input_set_capability(xpad->dev, EV_FF, FF_RUMBLE); 480 481 return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect); 482 } 483 484 #else 485 static int xpad_init_ff(struct usb_xpad *xpad) { return 0; } 486 #endif 487 488 #if defined(CONFIG_JOYSTICK_XPAD_LEDS) 489 #include <linux/leds.h> 490 491 struct xpad_led { 492 char name[16]; 493 struct led_classdev led_cdev; 494 struct usb_xpad *xpad; 495 }; 496 497 static void xpad_send_led_command(struct usb_xpad *xpad, int command) 498 { 499 if (command >= 0 && command < 14) { 500 mutex_lock(&xpad->odata_mutex); 501 xpad->odata[0] = 0x01; 502 xpad->odata[1] = 0x03; 503 xpad->odata[2] = command; 504 usb_submit_urb(xpad->irq_out, GFP_KERNEL); 505 mutex_unlock(&xpad->odata_mutex); 506 } 507 } 508 509 static void xpad_led_set(struct led_classdev *led_cdev, 510 enum led_brightness value) 511 { 512 struct xpad_led *xpad_led = container_of(led_cdev, 513 struct xpad_led, led_cdev); 514 515 xpad_send_led_command(xpad_led->xpad, value); 516 } 517 518 static int xpad_led_probe(struct usb_xpad *xpad) 519 { 520 static atomic_t led_seq = ATOMIC_INIT(0); 521 long led_no; 522 struct xpad_led *led; 523 struct led_classdev *led_cdev; 524 int error; 525 526 if (xpad->xtype != XTYPE_XBOX360) 527 return 0; 528 529 xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL); 530 if (!led) 531 return -ENOMEM; 532 533 led_no = (long)atomic_inc_return(&led_seq) - 1; 534 535 snprintf(led->name, sizeof(led->name), "xpad%ld", led_no); 536 led->xpad = xpad; 537 538 led_cdev = &led->led_cdev; 539 led_cdev->name = led->name; 540 led_cdev->brightness_set = xpad_led_set; 541 542 error = led_classdev_register(&xpad->udev->dev, led_cdev); 543 if (error) { 544 kfree(led); 545 xpad->led = NULL; 546 return error; 547 } 548 549 /* 550 * Light up the segment corresponding to controller number 551 */ 552 xpad_send_led_command(xpad, (led_no % 4) + 2); 553 554 return 0; 555 } 556 557 static void xpad_led_disconnect(struct usb_xpad *xpad) 558 { 559 struct xpad_led *xpad_led = xpad->led; 560 561 if (xpad_led) { 562 led_classdev_unregister(&xpad_led->led_cdev); 563 kfree(xpad_led->name); 564 } 565 } 566 #else 567 static int xpad_led_probe(struct usb_xpad *xpad) { return 0; } 568 static void xpad_led_disconnect(struct usb_xpad *xpad) { } 569 #endif 570 571 572 static int xpad_open(struct input_dev *dev) 573 { 574 struct usb_xpad *xpad = input_get_drvdata(dev); 575 576 xpad->irq_in->dev = xpad->udev; 577 if (usb_submit_urb(xpad->irq_in, GFP_KERNEL)) 578 return -EIO; 579 580 return 0; 581 } 582 583 static void xpad_close(struct input_dev *dev) 584 { 585 struct usb_xpad *xpad = input_get_drvdata(dev); 586 587 usb_kill_urb(xpad->irq_in); 588 xpad_stop_output(xpad); 589 } 590 591 static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs) 592 { 593 set_bit(abs, input_dev->absbit); 594 595 switch (abs) { 596 case ABS_X: 597 case ABS_Y: 598 case ABS_RX: 599 case ABS_RY: /* the two sticks */ 600 input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128); 601 break; 602 case ABS_Z: 603 case ABS_RZ: /* the triggers */ 604 input_set_abs_params(input_dev, abs, 0, 255, 0, 0); 605 break; 606 case ABS_HAT0X: 607 case ABS_HAT0Y: /* the d-pad (only if MAP_DPAD_TO_AXES) */ 608 input_set_abs_params(input_dev, abs, -1, 1, 0, 0); 609 break; 610 } 611 } 612 613 static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id) 614 { 615 struct usb_device *udev = interface_to_usbdev(intf); 616 struct usb_xpad *xpad; 617 struct input_dev *input_dev; 618 struct usb_endpoint_descriptor *ep_irq_in; 619 int i; 620 int error = -ENOMEM; 621 622 for (i = 0; xpad_device[i].idVendor; i++) { 623 if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) && 624 (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct)) 625 break; 626 } 627 628 xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL); 629 input_dev = input_allocate_device(); 630 if (!xpad || !input_dev) 631 goto fail1; 632 633 xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN, 634 GFP_ATOMIC, &xpad->idata_dma); 635 if (!xpad->idata) 636 goto fail1; 637 638 xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL); 639 if (!xpad->irq_in) 640 goto fail2; 641 642 xpad->udev = udev; 643 xpad->dpad_mapping = xpad_device[i].dpad_mapping; 644 xpad->xtype = xpad_device[i].xtype; 645 if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN) 646 xpad->dpad_mapping = dpad_to_buttons; 647 xpad->dev = input_dev; 648 usb_make_path(udev, xpad->phys, sizeof(xpad->phys)); 649 strlcat(xpad->phys, "/input0", sizeof(xpad->phys)); 650 651 input_dev->name = xpad_device[i].name; 652 input_dev->phys = xpad->phys; 653 usb_to_input_id(udev, &input_dev->id); 654 input_dev->dev.parent = &intf->dev; 655 656 input_set_drvdata(input_dev, xpad); 657 658 input_dev->open = xpad_open; 659 input_dev->close = xpad_close; 660 661 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); 662 663 /* set up buttons */ 664 for (i = 0; xpad_btn[i] >= 0; i++) 665 set_bit(xpad_btn[i], input_dev->keybit); 666 if (xpad->xtype == XTYPE_XBOX360) 667 for (i = 0; xpad360_btn[i] >= 0; i++) 668 set_bit(xpad360_btn[i], input_dev->keybit); 669 if (xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS) 670 for (i = 0; xpad_btn_pad[i] >= 0; i++) 671 set_bit(xpad_btn_pad[i], input_dev->keybit); 672 673 /* set up axes */ 674 for (i = 0; xpad_abs[i] >= 0; i++) 675 xpad_set_up_abs(input_dev, xpad_abs[i]); 676 if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) 677 for (i = 0; xpad_abs_pad[i] >= 0; i++) 678 xpad_set_up_abs(input_dev, xpad_abs_pad[i]); 679 680 error = xpad_init_output(intf, xpad); 681 if (error) 682 goto fail2; 683 684 error = xpad_init_ff(xpad); 685 if (error) 686 goto fail3; 687 688 error = xpad_led_probe(xpad); 689 if (error) 690 goto fail3; 691 692 ep_irq_in = &intf->cur_altsetting->endpoint[0].desc; 693 usb_fill_int_urb(xpad->irq_in, udev, 694 usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress), 695 xpad->idata, XPAD_PKT_LEN, xpad_irq_in, 696 xpad, ep_irq_in->bInterval); 697 xpad->irq_in->transfer_dma = xpad->idata_dma; 698 xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 699 700 error = input_register_device(xpad->dev); 701 if (error) 702 goto fail4; 703 704 usb_set_intfdata(intf, xpad); 705 return 0; 706 707 fail4: usb_free_urb(xpad->irq_in); 708 fail3: xpad_deinit_output(xpad); 709 fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma); 710 fail1: input_free_device(input_dev); 711 kfree(xpad); 712 return error; 713 714 } 715 716 static void xpad_disconnect(struct usb_interface *intf) 717 { 718 struct usb_xpad *xpad = usb_get_intfdata (intf); 719 720 usb_set_intfdata(intf, NULL); 721 if (xpad) { 722 xpad_led_disconnect(xpad); 723 input_unregister_device(xpad->dev); 724 xpad_deinit_output(xpad); 725 usb_free_urb(xpad->irq_in); 726 usb_buffer_free(xpad->udev, XPAD_PKT_LEN, 727 xpad->idata, xpad->idata_dma); 728 kfree(xpad); 729 } 730 } 731 732 static struct usb_driver xpad_driver = { 733 .name = "xpad", 734 .probe = xpad_probe, 735 .disconnect = xpad_disconnect, 736 .id_table = xpad_table, 737 }; 738 739 static int __init usb_xpad_init(void) 740 { 741 int result = usb_register(&xpad_driver); 742 if (result == 0) 743 info(DRIVER_DESC ":" DRIVER_VERSION); 744 return result; 745 } 746 747 static void __exit usb_xpad_exit(void) 748 { 749 usb_deregister(&xpad_driver); 750 } 751 752 module_init(usb_xpad_init); 753 module_exit(usb_xpad_exit); 754 755 MODULE_AUTHOR(DRIVER_AUTHOR); 756 MODULE_DESCRIPTION(DRIVER_DESC); 757 MODULE_LICENSE("GPL"); 758