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/usb/input.h> 79 80 #define DRIVER_VERSION "v0.0.6" 81 #define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>" 82 #define DRIVER_DESC "X-Box pad driver" 83 84 #define XPAD_PKT_LEN 32 85 86 /* xbox d-pads should map to buttons, as is required for DDR pads 87 but we map them to axes when possible to simplify things */ 88 #define MAP_DPAD_TO_BUTTONS 0 89 #define MAP_DPAD_TO_AXES 1 90 #define MAP_DPAD_UNKNOWN -1 91 92 #define XTYPE_XBOX 0 93 #define XTYPE_XBOX360 1 94 95 static int dpad_to_buttons; 96 module_param(dpad_to_buttons, bool, S_IRUGO); 97 MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads"); 98 99 static const struct xpad_device { 100 u16 idVendor; 101 u16 idProduct; 102 char *name; 103 u8 dpad_mapping; 104 u8 xtype; 105 } xpad_device[] = { 106 { 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 107 { 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 108 { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 109 { 0x045e, 0x0287, "Microsoft Xbox Controller S", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 110 { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, 111 { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 112 { 0x046d, 0xca84, "Logitech Xbox Cordless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 113 { 0x046d, 0xca88, "Logitech Compact Controller for Xbox", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 114 { 0x05fd, 0x1007, "Mad Catz Controller (unverified)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 115 { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 116 { 0x0738, 0x4516, "Mad Catz Control Pad", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 117 { 0x0738, 0x4522, "Mad Catz LumiCON", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 118 { 0x0738, 0x4526, "Mad Catz Control Pad Pro", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 119 { 0x0738, 0x4536, "Mad Catz MicroCON", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 120 { 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, 121 { 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 122 { 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360 }, 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 { 0x0e6f, 0x0006, "Pelican 'TSZ' Wired Xbox 360 Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX360 }, 133 { 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 134 { 0x0f30, 0x0202, "Joytech Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 135 { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 136 { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 137 { 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, 138 { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX }, 139 { 0x045e, 0x028e, "Microsoft X-Box 360 pad", MAP_DPAD_TO_AXES, XTYPE_XBOX360 }, 140 { 0xffff, 0xffff, "Chinese-made Xbox Controller", MAP_DPAD_TO_AXES, XTYPE_XBOX }, 141 { 0x0000, 0x0000, "Generic X-Box pad", MAP_DPAD_UNKNOWN, XTYPE_XBOX } 142 }; 143 144 static const signed short xpad_btn[] = { 145 BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, /* "analog" buttons */ 146 BTN_START, BTN_BACK, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */ 147 -1 /* terminating entry */ 148 }; 149 150 /* only used if MAP_DPAD_TO_BUTTONS */ 151 static const signed short xpad_btn_pad[] = { 152 BTN_LEFT, BTN_RIGHT, /* d-pad left, right */ 153 BTN_0, BTN_1, /* d-pad up, down (XXX names??) */ 154 -1 /* terminating entry */ 155 }; 156 157 static const signed short xpad360_btn[] = { /* buttons for x360 controller */ 158 BTN_TL, BTN_TR, /* Button LB/RB */ 159 BTN_MODE, /* The big X button */ 160 -1 161 }; 162 163 static const signed short xpad_abs[] = { 164 ABS_X, ABS_Y, /* left stick */ 165 ABS_RX, ABS_RY, /* right stick */ 166 ABS_Z, ABS_RZ, /* triggers left/right */ 167 -1 /* terminating entry */ 168 }; 169 170 /* only used if MAP_DPAD_TO_AXES */ 171 static const signed short xpad_abs_pad[] = { 172 ABS_HAT0X, ABS_HAT0Y, /* d-pad axes */ 173 -1 /* terminating entry */ 174 }; 175 176 /* Xbox 360 has a vendor-specific (sub)class, so we cannot match it with only 177 * USB_INTERFACE_INFO, more to that this device has 4 InterfaceProtocols, 178 * but we need only one of them. */ 179 static struct usb_device_id xpad_table [] = { 180 { USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */ 181 { USB_DEVICE_INTERFACE_PROTOCOL(0x045e, 0x028e, 1) }, /* X-Box 360 controller */ 182 { } 183 }; 184 185 MODULE_DEVICE_TABLE (usb, xpad_table); 186 187 struct usb_xpad { 188 struct input_dev *dev; /* input device interface */ 189 struct usb_device *udev; /* usb device */ 190 191 struct urb *irq_in; /* urb for interrupt in report */ 192 unsigned char *idata; /* input data */ 193 dma_addr_t idata_dma; 194 195 #if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS) 196 struct urb *irq_out; /* urb for interrupt out report */ 197 unsigned char *odata; /* output data */ 198 dma_addr_t odata_dma; 199 struct mutex odata_mutex; 200 #endif 201 202 #if defined(CONFIG_JOYSTICK_XPAD_LEDS) 203 struct xpad_led *led; 204 #endif 205 206 char phys[64]; /* physical device path */ 207 208 int dpad_mapping; /* map d-pad to buttons or to axes */ 209 int xtype; /* type of xbox device */ 210 }; 211 212 /* 213 * xpad_process_packet 214 * 215 * Completes a request by converting the data into events for the 216 * input subsystem. 217 * 218 * The used report descriptor was taken from ITO Takayukis website: 219 * http://euc.jp/periphs/xbox-controller.ja.html 220 */ 221 222 static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data) 223 { 224 struct input_dev *dev = xpad->dev; 225 226 /* left stick */ 227 input_report_abs(dev, ABS_X, 228 (__s16) le16_to_cpup((__le16 *)(data + 12))); 229 input_report_abs(dev, ABS_Y, 230 (__s16) le16_to_cpup((__le16 *)(data + 14))); 231 232 /* right stick */ 233 input_report_abs(dev, ABS_RX, 234 (__s16) le16_to_cpup((__le16 *)(data + 16))); 235 input_report_abs(dev, ABS_RY, 236 (__s16) le16_to_cpup((__le16 *)(data + 18))); 237 238 /* triggers left/right */ 239 input_report_abs(dev, ABS_Z, data[10]); 240 input_report_abs(dev, ABS_RZ, data[11]); 241 242 /* digital pad */ 243 if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) { 244 input_report_abs(dev, ABS_HAT0X, 245 !!(data[2] & 0x08) - !!(data[2] & 0x04)); 246 input_report_abs(dev, ABS_HAT0Y, 247 !!(data[2] & 0x02) - !!(data[2] & 0x01)); 248 } else /* xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS */ { 249 input_report_key(dev, BTN_LEFT, data[2] & 0x04); 250 input_report_key(dev, BTN_RIGHT, data[2] & 0x08); 251 input_report_key(dev, BTN_0, data[2] & 0x01); /* up */ 252 input_report_key(dev, BTN_1, data[2] & 0x02); /* down */ 253 } 254 255 /* start/back buttons and stick press left/right */ 256 input_report_key(dev, BTN_START, data[2] & 0x10); 257 input_report_key(dev, BTN_BACK, data[2] & 0x20); 258 input_report_key(dev, BTN_THUMBL, data[2] & 0x40); 259 input_report_key(dev, BTN_THUMBR, data[2] & 0x80); 260 261 /* "analog" buttons A, B, X, Y */ 262 input_report_key(dev, BTN_A, data[4]); 263 input_report_key(dev, BTN_B, data[5]); 264 input_report_key(dev, BTN_X, data[6]); 265 input_report_key(dev, BTN_Y, data[7]); 266 267 /* "analog" buttons black, white */ 268 input_report_key(dev, BTN_C, data[8]); 269 input_report_key(dev, BTN_Z, data[9]); 270 271 input_sync(dev); 272 } 273 274 /* 275 * xpad360_process_packet 276 * 277 * Completes a request by converting the data into events for the 278 * input subsystem. It is version for xbox 360 controller 279 * 280 * The used report descriptor was taken from: 281 * http://www.free60.org/wiki/Gamepad 282 */ 283 284 static void xpad360_process_packet(struct usb_xpad *xpad, 285 u16 cmd, unsigned char *data) 286 { 287 struct input_dev *dev = xpad->dev; 288 289 /* digital pad */ 290 if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) { 291 input_report_abs(dev, ABS_HAT0X, 292 !!(data[2] & 0x08) - !!(data[2] & 0x04)); 293 input_report_abs(dev, ABS_HAT0Y, 294 !!(data[2] & 0x02) - !!(data[2] & 0x01)); 295 } else if (xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS) { 296 /* dpad as buttons (right, left, down, up) */ 297 input_report_key(dev, BTN_LEFT, data[2] & 0x04); 298 input_report_key(dev, BTN_RIGHT, data[2] & 0x08); 299 input_report_key(dev, BTN_0, data[2] & 0x01); /* up */ 300 input_report_key(dev, BTN_1, data[2] & 0x02); /* down */ 301 } 302 303 /* start/back buttons */ 304 input_report_key(dev, BTN_START, data[2] & 0x10); 305 input_report_key(dev, BTN_BACK, data[2] & 0x20); 306 307 /* stick press left/right */ 308 input_report_key(dev, BTN_THUMBL, data[2] & 0x40); 309 input_report_key(dev, BTN_THUMBR, data[2] & 0x80); 310 311 /* buttons A,B,X,Y,TL,TR and MODE */ 312 input_report_key(dev, BTN_A, data[3] & 0x10); 313 input_report_key(dev, BTN_B, data[3] & 0x20); 314 input_report_key(dev, BTN_X, data[3] & 0x40); 315 input_report_key(dev, BTN_Y, data[3] & 0x80); 316 input_report_key(dev, BTN_TL, data[3] & 0x01); 317 input_report_key(dev, BTN_TR, data[3] & 0x02); 318 input_report_key(dev, BTN_MODE, data[3] & 0x04); 319 320 /* left stick */ 321 input_report_abs(dev, ABS_X, 322 (__s16) le16_to_cpup((__le16 *)(data + 6))); 323 input_report_abs(dev, ABS_Y, 324 (__s16) le16_to_cpup((__le16 *)(data + 8))); 325 326 /* right stick */ 327 input_report_abs(dev, ABS_RX, 328 (__s16) le16_to_cpup((__le16 *)(data + 10))); 329 input_report_abs(dev, ABS_RY, 330 (__s16) le16_to_cpup((__le16 *)(data + 12))); 331 332 /* triggers left/right */ 333 input_report_abs(dev, ABS_Z, data[4]); 334 input_report_abs(dev, ABS_RZ, data[5]); 335 336 input_sync(dev); 337 } 338 339 static void xpad_irq_in(struct urb *urb) 340 { 341 struct usb_xpad *xpad = urb->context; 342 int retval; 343 344 switch (urb->status) { 345 case 0: 346 /* success */ 347 break; 348 case -ECONNRESET: 349 case -ENOENT: 350 case -ESHUTDOWN: 351 /* this urb is terminated, clean up */ 352 dbg("%s - urb shutting down with status: %d", 353 __FUNCTION__, urb->status); 354 return; 355 default: 356 dbg("%s - nonzero urb status received: %d", 357 __FUNCTION__, urb->status); 358 goto exit; 359 } 360 361 if (xpad->xtype == XTYPE_XBOX360) 362 xpad360_process_packet(xpad, 0, xpad->idata); 363 else 364 xpad_process_packet(xpad, 0, xpad->idata); 365 366 exit: 367 retval = usb_submit_urb (urb, GFP_ATOMIC); 368 if (retval) 369 err ("%s - usb_submit_urb failed with result %d", 370 __FUNCTION__, retval); 371 } 372 373 #if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS) 374 static void xpad_irq_out(struct urb *urb) 375 { 376 int retval; 377 378 switch (urb->status) { 379 case 0: 380 /* success */ 381 break; 382 case -ECONNRESET: 383 case -ENOENT: 384 case -ESHUTDOWN: 385 /* this urb is terminated, clean up */ 386 dbg("%s - urb shutting down with status: %d", 387 __FUNCTION__, urb->status); 388 return; 389 default: 390 dbg("%s - nonzero urb status received: %d", 391 __FUNCTION__, urb->status); 392 goto exit; 393 } 394 395 exit: 396 retval = usb_submit_urb(urb, GFP_ATOMIC); 397 if (retval) 398 err("%s - usb_submit_urb failed with result %d", 399 __FUNCTION__, retval); 400 } 401 402 static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) 403 { 404 struct usb_endpoint_descriptor *ep_irq_out; 405 int error = -ENOMEM; 406 407 if (xpad->xtype != XTYPE_XBOX360) 408 return 0; 409 410 xpad->odata = usb_buffer_alloc(xpad->udev, XPAD_PKT_LEN, 411 GFP_ATOMIC, &xpad->odata_dma ); 412 if (!xpad->odata) 413 goto fail1; 414 415 mutex_init(&xpad->odata_mutex); 416 417 xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL); 418 if (!xpad->irq_out) 419 goto fail2; 420 421 ep_irq_out = &intf->cur_altsetting->endpoint[1].desc; 422 usb_fill_int_urb(xpad->irq_out, xpad->udev, 423 usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress), 424 xpad->odata, XPAD_PKT_LEN, 425 xpad_irq_out, xpad, ep_irq_out->bInterval); 426 xpad->irq_out->transfer_dma = xpad->odata_dma; 427 xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 428 429 return 0; 430 431 fail2: usb_buffer_free(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma); 432 fail1: return error; 433 } 434 435 static void xpad_stop_output(struct usb_xpad *xpad) 436 { 437 if (xpad->xtype == XTYPE_XBOX360) 438 usb_kill_urb(xpad->irq_out); 439 } 440 441 static void xpad_deinit_output(struct usb_xpad *xpad) 442 { 443 if (xpad->xtype == XTYPE_XBOX360) { 444 usb_free_urb(xpad->irq_out); 445 usb_buffer_free(xpad->udev, XPAD_PKT_LEN, 446 xpad->odata, xpad->odata_dma); 447 } 448 } 449 #else 450 static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; } 451 static void xpad_deinit_output(struct usb_xpad *xpad) {} 452 static void xpad_stop_output(struct usb_xpad *xpad) {} 453 #endif 454 455 #ifdef CONFIG_JOYSTICK_XPAD_FF 456 static int xpad_play_effect(struct input_dev *dev, void *data, 457 struct ff_effect *effect) 458 { 459 struct usb_xpad *xpad = input_get_drvdata(dev); 460 461 if (effect->type == FF_RUMBLE) { 462 __u16 strong = effect->u.rumble.strong_magnitude; 463 __u16 weak = effect->u.rumble.weak_magnitude; 464 xpad->odata[0] = 0x00; 465 xpad->odata[1] = 0x08; 466 xpad->odata[2] = 0x00; 467 xpad->odata[3] = strong / 256; 468 xpad->odata[4] = weak / 256; 469 xpad->odata[5] = 0x00; 470 xpad->odata[6] = 0x00; 471 xpad->odata[7] = 0x00; 472 usb_submit_urb(xpad->irq_out, GFP_KERNEL); 473 } 474 475 return 0; 476 } 477 478 static int xpad_init_ff(struct usb_xpad *xpad) 479 { 480 input_set_capability(xpad->dev, EV_FF, FF_RUMBLE); 481 482 return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect); 483 } 484 485 #else 486 static int xpad_init_ff(struct usb_xpad *xpad) { return 0; } 487 #endif 488 489 #if defined(CONFIG_JOYSTICK_XPAD_LEDS) 490 #include <linux/leds.h> 491 492 struct xpad_led { 493 char name[16]; 494 struct led_classdev led_cdev; 495 struct usb_xpad *xpad; 496 }; 497 498 static void xpad_send_led_command(struct usb_xpad *xpad, int command) 499 { 500 if (command >= 0 && command < 14) { 501 mutex_lock(&xpad->odata_mutex); 502 xpad->odata[0] = 0x01; 503 xpad->odata[1] = 0x03; 504 xpad->odata[2] = command; 505 usb_submit_urb(xpad->irq_out, GFP_KERNEL); 506 mutex_unlock(&xpad->odata_mutex); 507 } 508 } 509 510 static void xpad_led_set(struct led_classdev *led_cdev, 511 enum led_brightness value) 512 { 513 struct xpad_led *xpad_led = container_of(led_cdev, 514 struct xpad_led, led_cdev); 515 516 xpad_send_led_command(xpad_led->xpad, value); 517 } 518 519 static int xpad_led_probe(struct usb_xpad *xpad) 520 { 521 static atomic_t led_seq = ATOMIC_INIT(0); 522 long led_no; 523 struct xpad_led *led; 524 struct led_classdev *led_cdev; 525 int error; 526 527 if (xpad->xtype != XTYPE_XBOX360) 528 return 0; 529 530 xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL); 531 if (!led) 532 return -ENOMEM; 533 534 led_no = (long)atomic_inc_return(&led_seq) - 1; 535 536 snprintf(led->name, sizeof(led->name), "xpad%ld", led_no); 537 led->xpad = xpad; 538 539 led_cdev = &led->led_cdev; 540 led_cdev->name = led->name; 541 led_cdev->brightness_set = xpad_led_set; 542 543 error = led_classdev_register(&xpad->udev->dev, led_cdev); 544 if (error) { 545 kfree(led); 546 xpad->led = NULL; 547 return error; 548 } 549 550 /* 551 * Light up the segment corresponding to controller number 552 */ 553 xpad_send_led_command(xpad, (led_no % 4) + 2); 554 555 return 0; 556 } 557 558 static void xpad_led_disconnect(struct usb_xpad *xpad) 559 { 560 struct xpad_led *xpad_led = xpad->led; 561 562 if (xpad_led) { 563 led_classdev_unregister(&xpad_led->led_cdev); 564 kfree(xpad_led->name); 565 } 566 } 567 #else 568 static int xpad_led_probe(struct usb_xpad *xpad) { return 0; } 569 static void xpad_led_disconnect(struct usb_xpad *xpad) { } 570 #endif 571 572 573 static int xpad_open(struct input_dev *dev) 574 { 575 struct usb_xpad *xpad = input_get_drvdata(dev); 576 577 xpad->irq_in->dev = xpad->udev; 578 if (usb_submit_urb(xpad->irq_in, GFP_KERNEL)) 579 return -EIO; 580 581 return 0; 582 } 583 584 static void xpad_close(struct input_dev *dev) 585 { 586 struct usb_xpad *xpad = input_get_drvdata(dev); 587 588 usb_kill_urb(xpad->irq_in); 589 xpad_stop_output(xpad); 590 } 591 592 static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs) 593 { 594 set_bit(abs, input_dev->absbit); 595 596 switch (abs) { 597 case ABS_X: 598 case ABS_Y: 599 case ABS_RX: 600 case ABS_RY: /* the two sticks */ 601 input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128); 602 break; 603 case ABS_Z: 604 case ABS_RZ: /* the triggers */ 605 input_set_abs_params(input_dev, abs, 0, 255, 0, 0); 606 break; 607 case ABS_HAT0X: 608 case ABS_HAT0Y: /* the d-pad (only if MAP_DPAD_TO_AXES) */ 609 input_set_abs_params(input_dev, abs, -1, 1, 0, 0); 610 break; 611 } 612 } 613 614 static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id) 615 { 616 struct usb_device *udev = interface_to_usbdev(intf); 617 struct usb_xpad *xpad; 618 struct input_dev *input_dev; 619 struct usb_endpoint_descriptor *ep_irq_in; 620 int i; 621 int error = -ENOMEM; 622 623 for (i = 0; xpad_device[i].idVendor; i++) { 624 if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) && 625 (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct)) 626 break; 627 } 628 629 xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL); 630 input_dev = input_allocate_device(); 631 if (!xpad || !input_dev) 632 goto fail1; 633 634 xpad->idata = usb_buffer_alloc(udev, XPAD_PKT_LEN, 635 GFP_ATOMIC, &xpad->idata_dma); 636 if (!xpad->idata) 637 goto fail1; 638 639 xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL); 640 if (!xpad->irq_in) 641 goto fail2; 642 643 xpad->udev = udev; 644 xpad->dpad_mapping = xpad_device[i].dpad_mapping; 645 xpad->xtype = xpad_device[i].xtype; 646 if (xpad->dpad_mapping == MAP_DPAD_UNKNOWN) 647 xpad->dpad_mapping = dpad_to_buttons; 648 xpad->dev = input_dev; 649 usb_make_path(udev, xpad->phys, sizeof(xpad->phys)); 650 strlcat(xpad->phys, "/input0", sizeof(xpad->phys)); 651 652 input_dev->name = xpad_device[i].name; 653 input_dev->phys = xpad->phys; 654 usb_to_input_id(udev, &input_dev->id); 655 input_dev->dev.parent = &intf->dev; 656 657 input_set_drvdata(input_dev, xpad); 658 659 input_dev->open = xpad_open; 660 input_dev->close = xpad_close; 661 662 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); 663 664 /* set up buttons */ 665 for (i = 0; xpad_btn[i] >= 0; i++) 666 set_bit(xpad_btn[i], input_dev->keybit); 667 if (xpad->xtype == XTYPE_XBOX360) 668 for (i = 0; xpad360_btn[i] >= 0; i++) 669 set_bit(xpad360_btn[i], input_dev->keybit); 670 if (xpad->dpad_mapping == MAP_DPAD_TO_BUTTONS) 671 for (i = 0; xpad_btn_pad[i] >= 0; i++) 672 set_bit(xpad_btn_pad[i], input_dev->keybit); 673 674 /* set up axes */ 675 for (i = 0; xpad_abs[i] >= 0; i++) 676 xpad_set_up_abs(input_dev, xpad_abs[i]); 677 if (xpad->dpad_mapping == MAP_DPAD_TO_AXES) 678 for (i = 0; xpad_abs_pad[i] >= 0; i++) 679 xpad_set_up_abs(input_dev, xpad_abs_pad[i]); 680 681 error = xpad_init_output(intf, xpad); 682 if (error) 683 goto fail2; 684 685 error = xpad_init_ff(xpad); 686 if (error) 687 goto fail3; 688 689 error = xpad_led_probe(xpad); 690 if (error) 691 goto fail3; 692 693 ep_irq_in = &intf->cur_altsetting->endpoint[0].desc; 694 usb_fill_int_urb(xpad->irq_in, udev, 695 usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress), 696 xpad->idata, XPAD_PKT_LEN, xpad_irq_in, 697 xpad, ep_irq_in->bInterval); 698 xpad->irq_in->transfer_dma = xpad->idata_dma; 699 xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 700 701 error = input_register_device(xpad->dev); 702 if (error) 703 goto fail4; 704 705 usb_set_intfdata(intf, xpad); 706 return 0; 707 708 fail4: usb_free_urb(xpad->irq_in); 709 fail3: xpad_deinit_output(xpad); 710 fail2: usb_buffer_free(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma); 711 fail1: input_free_device(input_dev); 712 kfree(xpad); 713 return error; 714 715 } 716 717 static void xpad_disconnect(struct usb_interface *intf) 718 { 719 struct usb_xpad *xpad = usb_get_intfdata (intf); 720 721 usb_set_intfdata(intf, NULL); 722 if (xpad) { 723 xpad_led_disconnect(xpad); 724 input_unregister_device(xpad->dev); 725 xpad_deinit_output(xpad); 726 usb_free_urb(xpad->irq_in); 727 usb_buffer_free(xpad->udev, XPAD_PKT_LEN, 728 xpad->idata, xpad->idata_dma); 729 kfree(xpad); 730 } 731 } 732 733 static struct usb_driver xpad_driver = { 734 .name = "xpad", 735 .probe = xpad_probe, 736 .disconnect = xpad_disconnect, 737 .id_table = xpad_table, 738 }; 739 740 static int __init usb_xpad_init(void) 741 { 742 int result = usb_register(&xpad_driver); 743 if (result == 0) 744 info(DRIVER_DESC ":" DRIVER_VERSION); 745 return result; 746 } 747 748 static void __exit usb_xpad_exit(void) 749 { 750 usb_deregister(&xpad_driver); 751 } 752 753 module_init(usb_xpad_init); 754 module_exit(usb_xpad_exit); 755 756 MODULE_AUTHOR(DRIVER_AUTHOR); 757 MODULE_DESCRIPTION(DRIVER_DESC); 758 MODULE_LICENSE("GPL"); 759