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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "content/browser/gamepad/xbox_data_fetcher_mac.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <cmath> | |
| 9 #include <limits> | |
| 10 | |
| 11 #include <CoreFoundation/CoreFoundation.h> | |
| 12 #include <IOKit/IOCFPlugIn.h> | |
| 13 #include <IOKit/IOKitLib.h> | |
| 14 #include <IOKit/usb/IOUSBLib.h> | |
| 15 #include <IOKit/usb/USB.h> | |
| 16 | |
| 17 #include "base/logging.h" | |
| 18 #include "base/mac/foundation_util.h" | |
| 19 | |
| 20 namespace { | |
| 21 const int kVendorMicrosoft = 0x045e; | |
| 22 const int kProductXbox360Controller = 0x028e; | |
| 23 const int kProductXboxOneController = 0x02d1; | |
| 24 | |
| 25 const int kXbox360ReadEndpoint = 1; | |
| 26 const int kXbox360ControlEndpoint = 2; | |
| 27 | |
| 28 const int kXboxOneReadEndpoint = 2; | |
| 29 const int kXboxOneControlEndpoint = 1; | |
| 30 | |
| 31 enum { | |
| 32 STATUS_MESSAGE_BUTTONS = 0, | |
| 33 STATUS_MESSAGE_LED = 1, | |
| 34 | |
| 35 // Apparently this message tells you if the rumble pack is disabled in the | |
| 36 // controller. If the rumble pack is disabled, vibration control messages | |
| 37 // have no effect. | |
| 38 STATUS_MESSAGE_RUMBLE = 3, | |
| 39 }; | |
| 40 | |
| 41 enum { | |
| 42 XBOX_ONE_STATUS_MESSAGE_BUTTONS = 0x20, | |
| 43 }; | |
| 44 | |
| 45 enum { | |
| 46 CONTROL_MESSAGE_SET_RUMBLE = 0, | |
| 47 CONTROL_MESSAGE_SET_LED = 1, | |
| 48 }; | |
| 49 | |
| 50 #pragma pack(push, 1) | |
| 51 struct Xbox360ButtonData { | |
| 52 bool dpad_up : 1; | |
| 53 bool dpad_down : 1; | |
| 54 bool dpad_left : 1; | |
| 55 bool dpad_right : 1; | |
| 56 | |
| 57 bool start : 1; | |
| 58 bool back : 1; | |
| 59 bool stick_left_click : 1; | |
| 60 bool stick_right_click : 1; | |
| 61 | |
| 62 bool bumper_left : 1; | |
| 63 bool bumper_right : 1; | |
| 64 bool guide : 1; | |
| 65 bool dummy1 : 1; // Always 0. | |
| 66 | |
| 67 bool a : 1; | |
| 68 bool b : 1; | |
| 69 bool x : 1; | |
| 70 bool y : 1; | |
| 71 | |
| 72 uint8_t trigger_left; | |
| 73 uint8_t trigger_right; | |
| 74 | |
| 75 int16_t stick_left_x; | |
| 76 int16_t stick_left_y; | |
| 77 int16_t stick_right_x; | |
| 78 int16_t stick_right_y; | |
| 79 | |
| 80 // Always 0. | |
| 81 uint32_t dummy2; | |
| 82 uint16_t dummy3; | |
| 83 }; | |
| 84 | |
| 85 struct XboxOneButtonData { | |
| 86 bool sync : 1; | |
| 87 bool dummy1 : 1; // Always 0. | |
| 88 bool start : 1; | |
| 89 bool back : 1; | |
| 90 | |
| 91 bool a : 1; | |
| 92 bool b : 1; | |
| 93 bool x : 1; | |
| 94 bool y : 1; | |
| 95 | |
| 96 bool dpad_up : 1; | |
| 97 bool dpad_down : 1; | |
| 98 bool dpad_left : 1; | |
| 99 bool dpad_right : 1; | |
| 100 | |
| 101 bool bumper_left : 1; | |
| 102 bool bumper_right : 1; | |
| 103 bool stick_left_click : 1; | |
| 104 bool stick_right_click : 1; | |
| 105 | |
| 106 uint16_t trigger_left; | |
| 107 uint16_t trigger_right; | |
| 108 | |
| 109 int16_t stick_left_x; | |
| 110 int16_t stick_left_y; | |
| 111 int16_t stick_right_x; | |
| 112 int16_t stick_right_y; | |
| 113 }; | |
| 114 #pragma pack(pop) | |
| 115 | |
| 116 static_assert(sizeof(Xbox360ButtonData) == 18, "xbox button data wrong size"); | |
| 117 static_assert(sizeof(XboxOneButtonData) == 14, "xbox button data wrong size"); | |
| 118 | |
| 119 // From MSDN: | |
| 120 // http://msdn.microsoft.com/en-us/library/windows/desktop/ee417001(v=vs.85).asp
x#dead_zone | |
| 121 const int16_t kLeftThumbDeadzone = 7849; | |
| 122 const int16_t kRightThumbDeadzone = 8689; | |
| 123 const uint8_t kXbox360TriggerDeadzone = 30; | |
| 124 const uint16_t kXboxOneTriggerMax = 1023; | |
| 125 const uint16_t kXboxOneTriggerDeadzone = 120; | |
| 126 | |
| 127 void NormalizeAxis(int16_t x, | |
| 128 int16_t y, | |
| 129 int16_t deadzone, | |
| 130 float* x_out, | |
| 131 float* y_out) { | |
| 132 float x_val = x; | |
| 133 float y_val = y; | |
| 134 | |
| 135 // Determine how far the stick is pushed. | |
| 136 float real_magnitude = std::sqrt(x_val * x_val + y_val * y_val); | |
| 137 | |
| 138 // Check if the controller is outside a circular dead zone. | |
| 139 if (real_magnitude > deadzone) { | |
| 140 // Clip the magnitude at its expected maximum value. | |
| 141 float magnitude = std::min(32767.0f, real_magnitude); | |
| 142 | |
| 143 // Adjust magnitude relative to the end of the dead zone. | |
| 144 magnitude -= deadzone; | |
| 145 | |
| 146 // Normalize the magnitude with respect to its expected range giving a | |
| 147 // magnitude value of 0.0 to 1.0 | |
| 148 float ratio = (magnitude / (32767 - deadzone)) / real_magnitude; | |
| 149 | |
| 150 // Y is negated because xbox controllers have an opposite sign from | |
| 151 // the 'standard controller' recommendations. | |
| 152 *x_out = x_val * ratio; | |
| 153 *y_out = -y_val * ratio; | |
| 154 } else { | |
| 155 // If the controller is in the deadzone zero out the magnitude. | |
| 156 *x_out = *y_out = 0.0f; | |
| 157 } | |
| 158 } | |
| 159 | |
| 160 float NormalizeTrigger(uint8_t value) { | |
| 161 return value < kXbox360TriggerDeadzone | |
| 162 ? 0 | |
| 163 : static_cast<float>(value - kXbox360TriggerDeadzone) / | |
| 164 (std::numeric_limits<uint8_t>::max() - | |
| 165 kXbox360TriggerDeadzone); | |
| 166 } | |
| 167 | |
| 168 float NormalizeXboxOneTrigger(uint16_t value) { | |
| 169 return value < kXboxOneTriggerDeadzone ? 0 : | |
| 170 static_cast<float>(value - kXboxOneTriggerDeadzone) / | |
| 171 (kXboxOneTriggerMax - kXboxOneTriggerDeadzone); | |
| 172 } | |
| 173 | |
| 174 void NormalizeXbox360ButtonData(const Xbox360ButtonData& data, | |
| 175 XboxController::Data* normalized_data) { | |
| 176 normalized_data->buttons[0] = data.a; | |
| 177 normalized_data->buttons[1] = data.b; | |
| 178 normalized_data->buttons[2] = data.x; | |
| 179 normalized_data->buttons[3] = data.y; | |
| 180 normalized_data->buttons[4] = data.bumper_left; | |
| 181 normalized_data->buttons[5] = data.bumper_right; | |
| 182 normalized_data->buttons[6] = data.back; | |
| 183 normalized_data->buttons[7] = data.start; | |
| 184 normalized_data->buttons[8] = data.stick_left_click; | |
| 185 normalized_data->buttons[9] = data.stick_right_click; | |
| 186 normalized_data->buttons[10] = data.dpad_up; | |
| 187 normalized_data->buttons[11] = data.dpad_down; | |
| 188 normalized_data->buttons[12] = data.dpad_left; | |
| 189 normalized_data->buttons[13] = data.dpad_right; | |
| 190 normalized_data->buttons[14] = data.guide; | |
| 191 normalized_data->triggers[0] = NormalizeTrigger(data.trigger_left); | |
| 192 normalized_data->triggers[1] = NormalizeTrigger(data.trigger_right); | |
| 193 NormalizeAxis(data.stick_left_x, | |
| 194 data.stick_left_y, | |
| 195 kLeftThumbDeadzone, | |
| 196 &normalized_data->axes[0], | |
| 197 &normalized_data->axes[1]); | |
| 198 NormalizeAxis(data.stick_right_x, | |
| 199 data.stick_right_y, | |
| 200 kRightThumbDeadzone, | |
| 201 &normalized_data->axes[2], | |
| 202 &normalized_data->axes[3]); | |
| 203 } | |
| 204 | |
| 205 void NormalizeXboxOneButtonData(const XboxOneButtonData& data, | |
| 206 XboxController::Data* normalized_data) { | |
| 207 normalized_data->buttons[0] = data.a; | |
| 208 normalized_data->buttons[1] = data.b; | |
| 209 normalized_data->buttons[2] = data.x; | |
| 210 normalized_data->buttons[3] = data.y; | |
| 211 normalized_data->buttons[4] = data.bumper_left; | |
| 212 normalized_data->buttons[5] = data.bumper_right; | |
| 213 normalized_data->buttons[6] = data.back; | |
| 214 normalized_data->buttons[7] = data.start; | |
| 215 normalized_data->buttons[8] = data.stick_left_click; | |
| 216 normalized_data->buttons[9] = data.stick_right_click; | |
| 217 normalized_data->buttons[10] = data.dpad_up; | |
| 218 normalized_data->buttons[11] = data.dpad_down; | |
| 219 normalized_data->buttons[12] = data.dpad_left; | |
| 220 normalized_data->buttons[13] = data.dpad_right; | |
| 221 normalized_data->buttons[14] = data.sync; | |
| 222 normalized_data->triggers[0] = NormalizeXboxOneTrigger(data.trigger_left); | |
| 223 normalized_data->triggers[1] = NormalizeXboxOneTrigger(data.trigger_right); | |
| 224 NormalizeAxis(data.stick_left_x, | |
| 225 data.stick_left_y, | |
| 226 kLeftThumbDeadzone, | |
| 227 &normalized_data->axes[0], | |
| 228 &normalized_data->axes[1]); | |
| 229 NormalizeAxis(data.stick_right_x, | |
| 230 data.stick_right_y, | |
| 231 kRightThumbDeadzone, | |
| 232 &normalized_data->axes[2], | |
| 233 &normalized_data->axes[3]); | |
| 234 } | |
| 235 | |
| 236 } // namespace | |
| 237 | |
| 238 XboxController::XboxController(Delegate* delegate) | |
| 239 : device_(NULL), | |
| 240 interface_(NULL), | |
| 241 device_is_open_(false), | |
| 242 interface_is_open_(false), | |
| 243 read_buffer_size_(0), | |
| 244 led_pattern_(LED_NUM_PATTERNS), | |
| 245 location_id_(0), | |
| 246 delegate_(delegate), | |
| 247 controller_type_(UNKNOWN_CONTROLLER), | |
| 248 read_endpoint_(0), | |
| 249 control_endpoint_(0) { | |
| 250 } | |
| 251 | |
| 252 XboxController::~XboxController() { | |
| 253 if (source_) | |
| 254 CFRunLoopSourceInvalidate(source_); | |
| 255 if (interface_ && interface_is_open_) | |
| 256 (*interface_)->USBInterfaceClose(interface_); | |
| 257 if (device_ && device_is_open_) | |
| 258 (*device_)->USBDeviceClose(device_); | |
| 259 } | |
| 260 | |
| 261 bool XboxController::OpenDevice(io_service_t service) { | |
| 262 IOCFPlugInInterface **plugin; | |
| 263 SInt32 score; // Unused, but required for IOCreatePlugInInterfaceForService. | |
| 264 kern_return_t kr = | |
| 265 IOCreatePlugInInterfaceForService(service, | |
| 266 kIOUSBDeviceUserClientTypeID, | |
| 267 kIOCFPlugInInterfaceID, | |
| 268 &plugin, | |
| 269 &score); | |
| 270 if (kr != KERN_SUCCESS) | |
| 271 return false; | |
| 272 base::mac::ScopedIOPluginInterface<IOCFPlugInInterface> plugin_ref(plugin); | |
| 273 | |
| 274 HRESULT res = | |
| 275 (*plugin)->QueryInterface(plugin, | |
| 276 CFUUIDGetUUIDBytes(kIOUSBDeviceInterfaceID320), | |
| 277 (LPVOID *)&device_); | |
| 278 if (!SUCCEEDED(res) || !device_) | |
| 279 return false; | |
| 280 | |
| 281 UInt16 vendor_id; | |
| 282 kr = (*device_)->GetDeviceVendor(device_, &vendor_id); | |
| 283 if (kr != KERN_SUCCESS || vendor_id != kVendorMicrosoft) | |
| 284 return false; | |
| 285 | |
| 286 UInt16 product_id; | |
| 287 kr = (*device_)->GetDeviceProduct(device_, &product_id); | |
| 288 if (kr != KERN_SUCCESS) | |
| 289 return false; | |
| 290 | |
| 291 IOUSBFindInterfaceRequest request; | |
| 292 switch (product_id) { | |
| 293 case kProductXbox360Controller: | |
| 294 controller_type_ = XBOX_360_CONTROLLER; | |
| 295 read_endpoint_ = kXbox360ReadEndpoint; | |
| 296 control_endpoint_ = kXbox360ControlEndpoint; | |
| 297 request.bInterfaceClass = 255; | |
| 298 request.bInterfaceSubClass = 93; | |
| 299 request.bInterfaceProtocol = 1; | |
| 300 request.bAlternateSetting = kIOUSBFindInterfaceDontCare; | |
| 301 break; | |
| 302 case kProductXboxOneController: | |
| 303 controller_type_ = XBOX_ONE_CONTROLLER; | |
| 304 read_endpoint_ = kXboxOneReadEndpoint; | |
| 305 control_endpoint_ = kXboxOneControlEndpoint; | |
| 306 request.bInterfaceClass = 255; | |
| 307 request.bInterfaceSubClass = 71; | |
| 308 request.bInterfaceProtocol = 208; | |
| 309 request.bAlternateSetting = kIOUSBFindInterfaceDontCare; | |
| 310 break; | |
| 311 default: | |
| 312 return false; | |
| 313 } | |
| 314 | |
| 315 // Open the device and configure it. | |
| 316 kr = (*device_)->USBDeviceOpen(device_); | |
| 317 if (kr != KERN_SUCCESS) | |
| 318 return false; | |
| 319 device_is_open_ = true; | |
| 320 | |
| 321 // Xbox controllers have one configuration option which has configuration | |
| 322 // value 1. Try to set it and fail if it couldn't be configured. | |
| 323 IOUSBConfigurationDescriptorPtr config_desc; | |
| 324 kr = (*device_)->GetConfigurationDescriptorPtr(device_, 0, &config_desc); | |
| 325 if (kr != KERN_SUCCESS) | |
| 326 return false; | |
| 327 kr = (*device_)->SetConfiguration(device_, config_desc->bConfigurationValue); | |
| 328 if (kr != KERN_SUCCESS) | |
| 329 return false; | |
| 330 | |
| 331 // The device has 4 interfaces. They are as follows: | |
| 332 // Protocol 1: | |
| 333 // - Endpoint 1 (in) : Controller events, including button presses. | |
| 334 // - Endpoint 2 (out): Rumble pack and LED control | |
| 335 // Protocol 2 has a single endpoint to read from a connected ChatPad device. | |
| 336 // Protocol 3 is used by a connected headset device. | |
| 337 // The device also has an interface on subclass 253, protocol 10 with no | |
| 338 // endpoints. It is unused. | |
| 339 // | |
| 340 // We don't currently support the ChatPad or headset, so protocol 1 is the | |
| 341 // only protocol we care about. | |
| 342 // | |
| 343 // For more detail, see | |
| 344 // https://github.com/Grumbel/xboxdrv/blob/master/PROTOCOL | |
| 345 io_iterator_t iter; | |
| 346 kr = (*device_)->CreateInterfaceIterator(device_, &request, &iter); | |
| 347 if (kr != KERN_SUCCESS) | |
| 348 return false; | |
| 349 base::mac::ScopedIOObject<io_iterator_t> iter_ref(iter); | |
| 350 | |
| 351 // There should be exactly one USB interface which matches the requested | |
| 352 // settings. | |
| 353 io_service_t usb_interface = IOIteratorNext(iter); | |
| 354 if (!usb_interface) | |
| 355 return false; | |
| 356 | |
| 357 // We need to make an InterfaceInterface to communicate with the device | |
| 358 // endpoint. This is the same process as earlier: first make a | |
| 359 // PluginInterface from the io_service then make the InterfaceInterface from | |
| 360 // that. | |
| 361 IOCFPlugInInterface **plugin_interface; | |
| 362 kr = IOCreatePlugInInterfaceForService(usb_interface, | |
| 363 kIOUSBInterfaceUserClientTypeID, | |
| 364 kIOCFPlugInInterfaceID, | |
| 365 &plugin_interface, | |
| 366 &score); | |
| 367 if (kr != KERN_SUCCESS || !plugin_interface) | |
| 368 return false; | |
| 369 base::mac::ScopedIOPluginInterface<IOCFPlugInInterface> interface_ref( | |
| 370 plugin_interface); | |
| 371 | |
| 372 // Release the USB interface, and any subsequent interfaces returned by the | |
| 373 // iterator. (There shouldn't be any, but in case a future device does | |
| 374 // contain more interfaces, this will serve to avoid memory leaks.) | |
| 375 do { | |
| 376 IOObjectRelease(usb_interface); | |
| 377 } while ((usb_interface = IOIteratorNext(iter))); | |
| 378 | |
| 379 // Actually create the interface. | |
| 380 res = (*plugin_interface)->QueryInterface( | |
| 381 plugin_interface, | |
| 382 CFUUIDGetUUIDBytes(kIOUSBInterfaceInterfaceID300), | |
| 383 (LPVOID *)&interface_); | |
| 384 | |
| 385 if (!SUCCEEDED(res) || !interface_) | |
| 386 return false; | |
| 387 | |
| 388 // Actually open the interface. | |
| 389 kr = (*interface_)->USBInterfaceOpen(interface_); | |
| 390 if (kr != KERN_SUCCESS) | |
| 391 return false; | |
| 392 interface_is_open_ = true; | |
| 393 | |
| 394 CFRunLoopSourceRef source_ref; | |
| 395 kr = (*interface_)->CreateInterfaceAsyncEventSource(interface_, &source_ref); | |
| 396 if (kr != KERN_SUCCESS || !source_ref) | |
| 397 return false; | |
| 398 source_.reset(source_ref); | |
| 399 CFRunLoopAddSource(CFRunLoopGetCurrent(), source_, kCFRunLoopDefaultMode); | |
| 400 | |
| 401 // The interface should have two pipes. Pipe 1 with direction kUSBIn and pipe | |
| 402 // 2 with direction kUSBOut. Both pipes should have type kUSBInterrupt. | |
| 403 uint8_t num_endpoints; | |
| 404 kr = (*interface_)->GetNumEndpoints(interface_, &num_endpoints); | |
| 405 if (kr != KERN_SUCCESS || num_endpoints < 2) | |
| 406 return false; | |
| 407 | |
| 408 for (int i = 1; i <= 2; i++) { | |
| 409 uint8_t direction; | |
| 410 uint8_t number; | |
| 411 uint8_t transfer_type; | |
| 412 uint16_t max_packet_size; | |
| 413 uint8_t interval; | |
| 414 | |
| 415 kr = (*interface_)->GetPipeProperties(interface_, | |
| 416 i, | |
| 417 &direction, | |
| 418 &number, | |
| 419 &transfer_type, | |
| 420 &max_packet_size, | |
| 421 &interval); | |
| 422 if (kr != KERN_SUCCESS || transfer_type != kUSBInterrupt) { | |
| 423 return false; | |
| 424 } | |
| 425 if (i == read_endpoint_) { | |
| 426 if (direction != kUSBIn) | |
| 427 return false; | |
| 428 read_buffer_.reset(new uint8_t[max_packet_size]); | |
| 429 read_buffer_size_ = max_packet_size; | |
| 430 QueueRead(); | |
| 431 } else if (i == control_endpoint_) { | |
| 432 if (direction != kUSBOut) | |
| 433 return false; | |
| 434 if (controller_type_ == XBOX_ONE_CONTROLLER) | |
| 435 WriteXboxOneInit(); | |
| 436 } | |
| 437 } | |
| 438 | |
| 439 // The location ID is unique per controller, and can be used to track | |
| 440 // controllers through reconnections (though if a controller is detached from | |
| 441 // one USB hub and attached to another, the location ID will change). | |
| 442 kr = (*device_)->GetLocationID(device_, &location_id_); | |
| 443 if (kr != KERN_SUCCESS) | |
| 444 return false; | |
| 445 | |
| 446 return true; | |
| 447 } | |
| 448 | |
| 449 void XboxController::SetLEDPattern(LEDPattern pattern) { | |
| 450 led_pattern_ = pattern; | |
| 451 const UInt8 length = 3; | |
| 452 | |
| 453 // This buffer will be released in WriteComplete when WritePipeAsync | |
| 454 // finishes. | |
| 455 UInt8* buffer = new UInt8[length]; | |
| 456 buffer[0] = static_cast<UInt8>(CONTROL_MESSAGE_SET_LED); | |
| 457 buffer[1] = length; | |
| 458 buffer[2] = static_cast<UInt8>(pattern); | |
| 459 kern_return_t kr = (*interface_)->WritePipeAsync(interface_, | |
| 460 control_endpoint_, | |
| 461 buffer, | |
| 462 (UInt32)length, | |
| 463 WriteComplete, | |
| 464 buffer); | |
| 465 if (kr != KERN_SUCCESS) { | |
| 466 delete[] buffer; | |
| 467 IOError(); | |
| 468 return; | |
| 469 } | |
| 470 } | |
| 471 | |
| 472 int XboxController::GetVendorId() const { | |
| 473 return kVendorMicrosoft; | |
| 474 } | |
| 475 | |
| 476 int XboxController::GetProductId() const { | |
| 477 if (controller_type_ == XBOX_360_CONTROLLER) | |
| 478 return kProductXbox360Controller; | |
| 479 else | |
| 480 return kProductXboxOneController; | |
| 481 } | |
| 482 | |
| 483 XboxController::ControllerType XboxController::GetControllerType() const { | |
| 484 return controller_type_; | |
| 485 } | |
| 486 | |
| 487 void XboxController::WriteComplete(void* context, IOReturn result, void* arg0) { | |
| 488 UInt8* buffer = static_cast<UInt8*>(context); | |
| 489 delete[] buffer; | |
| 490 | |
| 491 // Ignoring any errors sending data, because they will usually only occur | |
| 492 // when the device is disconnected, in which case it really doesn't matter if | |
| 493 // the data got to the controller or not. | |
| 494 if (result != kIOReturnSuccess) | |
| 495 return; | |
| 496 } | |
| 497 | |
| 498 void XboxController::GotData(void* context, IOReturn result, void* arg0) { | |
| 499 size_t bytes_read = reinterpret_cast<size_t>(arg0); | |
| 500 XboxController* controller = static_cast<XboxController*>(context); | |
| 501 | |
| 502 if (result != kIOReturnSuccess) { | |
| 503 // This will happen if the device was disconnected. The gamepad has | |
| 504 // probably been destroyed by a meteorite. | |
| 505 controller->IOError(); | |
| 506 return; | |
| 507 } | |
| 508 | |
| 509 if (controller->GetControllerType() == XBOX_360_CONTROLLER) | |
| 510 controller->ProcessXbox360Packet(bytes_read); | |
| 511 else | |
| 512 controller->ProcessXboxOnePacket(bytes_read); | |
| 513 | |
| 514 // Queue up another read. | |
| 515 controller->QueueRead(); | |
| 516 } | |
| 517 | |
| 518 void XboxController::ProcessXbox360Packet(size_t length) { | |
| 519 if (length < 2) | |
| 520 return; | |
| 521 DCHECK(length <= read_buffer_size_); | |
| 522 if (length > read_buffer_size_) { | |
| 523 IOError(); | |
| 524 return; | |
| 525 } | |
| 526 uint8_t* buffer = read_buffer_.get(); | |
| 527 | |
| 528 if (buffer[1] != length) | |
| 529 // Length in packet doesn't match length reported by USB. | |
| 530 return; | |
| 531 | |
| 532 uint8_t type = buffer[0]; | |
| 533 buffer += 2; | |
| 534 length -= 2; | |
| 535 switch (type) { | |
| 536 case STATUS_MESSAGE_BUTTONS: { | |
| 537 if (length != sizeof(Xbox360ButtonData)) | |
| 538 return; | |
| 539 Xbox360ButtonData* data = reinterpret_cast<Xbox360ButtonData*>(buffer); | |
| 540 Data normalized_data; | |
| 541 NormalizeXbox360ButtonData(*data, &normalized_data); | |
| 542 delegate_->XboxControllerGotData(this, normalized_data); | |
| 543 break; | |
| 544 } | |
| 545 case STATUS_MESSAGE_LED: | |
| 546 if (length != 3) | |
| 547 return; | |
| 548 // The controller sends one of these messages every time the LED pattern | |
| 549 // is set, as well as once when it is plugged in. | |
| 550 if (led_pattern_ == LED_NUM_PATTERNS && buffer[0] < LED_NUM_PATTERNS) | |
| 551 led_pattern_ = static_cast<LEDPattern>(buffer[0]); | |
| 552 break; | |
| 553 default: | |
| 554 // Unknown packet: ignore! | |
| 555 break; | |
| 556 } | |
| 557 } | |
| 558 | |
| 559 void XboxController::ProcessXboxOnePacket(size_t length) { | |
| 560 if (length < 2) | |
| 561 return; | |
| 562 DCHECK(length <= read_buffer_size_); | |
| 563 if (length > read_buffer_size_) { | |
| 564 IOError(); | |
| 565 return; | |
| 566 } | |
| 567 uint8_t* buffer = read_buffer_.get(); | |
| 568 | |
| 569 uint8_t type = buffer[0]; | |
| 570 buffer += 4; | |
| 571 length -= 4; | |
| 572 switch (type) { | |
| 573 case XBOX_ONE_STATUS_MESSAGE_BUTTONS: { | |
| 574 if (length != sizeof(XboxOneButtonData)) | |
| 575 return; | |
| 576 XboxOneButtonData* data = reinterpret_cast<XboxOneButtonData*>(buffer); | |
| 577 Data normalized_data; | |
| 578 NormalizeXboxOneButtonData(*data, &normalized_data); | |
| 579 delegate_->XboxControllerGotData(this, normalized_data); | |
| 580 break; | |
| 581 } | |
| 582 default: | |
| 583 // Unknown packet: ignore! | |
| 584 break; | |
| 585 } | |
| 586 } | |
| 587 | |
| 588 void XboxController::QueueRead() { | |
| 589 kern_return_t kr = (*interface_)->ReadPipeAsync(interface_, | |
| 590 read_endpoint_, | |
| 591 read_buffer_.get(), | |
| 592 read_buffer_size_, | |
| 593 GotData, | |
| 594 this); | |
| 595 if (kr != KERN_SUCCESS) | |
| 596 IOError(); | |
| 597 } | |
| 598 | |
| 599 void XboxController::IOError() { | |
| 600 delegate_->XboxControllerError(this); | |
| 601 } | |
| 602 | |
| 603 void XboxController::WriteXboxOneInit() { | |
| 604 const UInt8 length = 2; | |
| 605 | |
| 606 // This buffer will be released in WriteComplete when WritePipeAsync | |
| 607 // finishes. | |
| 608 UInt8* buffer = new UInt8[length]; | |
| 609 buffer[0] = 0x05; | |
| 610 buffer[1] = 0x20; | |
| 611 kern_return_t kr = (*interface_)->WritePipeAsync(interface_, | |
| 612 control_endpoint_, | |
| 613 buffer, | |
| 614 (UInt32)length, | |
| 615 WriteComplete, | |
| 616 buffer); | |
| 617 if (kr != KERN_SUCCESS) { | |
| 618 delete[] buffer; | |
| 619 IOError(); | |
| 620 return; | |
| 621 } | |
| 622 } | |
| 623 | |
| 624 //----------------------------------------------------------------------------- | |
| 625 | |
| 626 XboxDataFetcher::XboxDataFetcher(Delegate* delegate) | |
| 627 : delegate_(delegate), | |
| 628 listening_(false), | |
| 629 source_(NULL), | |
| 630 port_(NULL) { | |
| 631 } | |
| 632 | |
| 633 XboxDataFetcher::~XboxDataFetcher() { | |
| 634 while (!controllers_.empty()) { | |
| 635 RemoveController(*controllers_.begin()); | |
| 636 } | |
| 637 UnregisterFromNotifications(); | |
| 638 } | |
| 639 | |
| 640 void XboxDataFetcher::DeviceAdded(void* context, io_iterator_t iterator) { | |
| 641 DCHECK(context); | |
| 642 XboxDataFetcher* fetcher = static_cast<XboxDataFetcher*>(context); | |
| 643 io_service_t ref; | |
| 644 while ((ref = IOIteratorNext(iterator))) { | |
| 645 base::mac::ScopedIOObject<io_service_t> scoped_ref(ref); | |
| 646 XboxController* controller = new XboxController(fetcher); | |
| 647 if (controller->OpenDevice(ref)) { | |
| 648 fetcher->AddController(controller); | |
| 649 } else { | |
| 650 delete controller; | |
| 651 } | |
| 652 } | |
| 653 } | |
| 654 | |
| 655 void XboxDataFetcher::DeviceRemoved(void* context, io_iterator_t iterator) { | |
| 656 DCHECK(context); | |
| 657 XboxDataFetcher* fetcher = static_cast<XboxDataFetcher*>(context); | |
| 658 io_service_t ref; | |
| 659 while ((ref = IOIteratorNext(iterator))) { | |
| 660 base::mac::ScopedIOObject<io_service_t> scoped_ref(ref); | |
| 661 base::ScopedCFTypeRef<CFNumberRef> number( | |
| 662 base::mac::CFCastStrict<CFNumberRef>( | |
| 663 IORegistryEntryCreateCFProperty(ref, | |
| 664 CFSTR(kUSBDevicePropertyLocationID), | |
| 665 kCFAllocatorDefault, | |
| 666 kNilOptions))); | |
| 667 UInt32 location_id = 0; | |
| 668 CFNumberGetValue(number, kCFNumberSInt32Type, &location_id); | |
| 669 fetcher->RemoveControllerByLocationID(location_id); | |
| 670 } | |
| 671 } | |
| 672 | |
| 673 bool XboxDataFetcher::RegisterForNotifications() { | |
| 674 if (listening_) | |
| 675 return true; | |
| 676 port_ = IONotificationPortCreate(kIOMasterPortDefault); | |
| 677 if (!port_) | |
| 678 return false; | |
| 679 source_ = IONotificationPortGetRunLoopSource(port_); | |
| 680 if (!source_) | |
| 681 return false; | |
| 682 CFRunLoopAddSource(CFRunLoopGetCurrent(), source_, kCFRunLoopDefaultMode); | |
| 683 | |
| 684 listening_ = true; | |
| 685 | |
| 686 if (!RegisterForDeviceNotifications( | |
| 687 kVendorMicrosoft, kProductXboxOneController, | |
| 688 &xbox_one_device_added_iter_, | |
| 689 &xbox_one_device_removed_iter_)) | |
| 690 return false; | |
| 691 | |
| 692 if (!RegisterForDeviceNotifications( | |
| 693 kVendorMicrosoft, kProductXbox360Controller, | |
| 694 &xbox_360_device_added_iter_, | |
| 695 &xbox_360_device_removed_iter_)) | |
| 696 return false; | |
| 697 | |
| 698 return true; | |
| 699 } | |
| 700 | |
| 701 bool XboxDataFetcher::RegisterForDeviceNotifications( | |
| 702 int vendor_id, | |
| 703 int product_id, | |
| 704 base::mac::ScopedIOObject<io_iterator_t>* added_iter, | |
| 705 base::mac::ScopedIOObject<io_iterator_t>* removed_iter) { | |
| 706 base::ScopedCFTypeRef<CFNumberRef> vendor_cf(CFNumberCreate( | |
| 707 kCFAllocatorDefault, kCFNumberSInt32Type, &vendor_id)); | |
| 708 base::ScopedCFTypeRef<CFNumberRef> product_cf(CFNumberCreate( | |
| 709 kCFAllocatorDefault, kCFNumberSInt32Type, &product_id)); | |
| 710 base::ScopedCFTypeRef<CFMutableDictionaryRef> matching_dict( | |
| 711 IOServiceMatching(kIOUSBDeviceClassName)); | |
| 712 if (!matching_dict) | |
| 713 return false; | |
| 714 CFDictionarySetValue(matching_dict, CFSTR(kUSBVendorID), vendor_cf); | |
| 715 CFDictionarySetValue(matching_dict, CFSTR(kUSBProductID), product_cf); | |
| 716 | |
| 717 // IOServiceAddMatchingNotification() releases the dictionary when it's done. | |
| 718 // Retain it before each call to IOServiceAddMatchingNotification to keep | |
| 719 // things balanced. | |
| 720 CFRetain(matching_dict); | |
| 721 io_iterator_t device_added_iter; | |
| 722 IOReturn ret; | |
| 723 ret = IOServiceAddMatchingNotification(port_, | |
| 724 kIOFirstMatchNotification, | |
| 725 matching_dict, | |
| 726 DeviceAdded, | |
| 727 this, | |
| 728 &device_added_iter); | |
| 729 added_iter->reset(device_added_iter); | |
| 730 if (ret != kIOReturnSuccess) { | |
| 731 LOG(ERROR) << "Error listening for Xbox controller add events: " << ret; | |
| 732 return false; | |
| 733 } | |
| 734 DeviceAdded(this, added_iter->get()); | |
| 735 | |
| 736 CFRetain(matching_dict); | |
| 737 io_iterator_t device_removed_iter; | |
| 738 ret = IOServiceAddMatchingNotification(port_, | |
| 739 kIOTerminatedNotification, | |
| 740 matching_dict, | |
| 741 DeviceRemoved, | |
| 742 this, | |
| 743 &device_removed_iter); | |
| 744 removed_iter->reset(device_removed_iter); | |
| 745 if (ret != kIOReturnSuccess) { | |
| 746 LOG(ERROR) << "Error listening for Xbox controller remove events: " << ret; | |
| 747 return false; | |
| 748 } | |
| 749 DeviceRemoved(this, removed_iter->get()); | |
| 750 return true; | |
| 751 } | |
| 752 | |
| 753 void XboxDataFetcher::UnregisterFromNotifications() { | |
| 754 if (!listening_) | |
| 755 return; | |
| 756 listening_ = false; | |
| 757 if (source_) | |
| 758 CFRunLoopSourceInvalidate(source_); | |
| 759 if (port_) | |
| 760 IONotificationPortDestroy(port_); | |
| 761 port_ = NULL; | |
| 762 } | |
| 763 | |
| 764 XboxController* XboxDataFetcher::ControllerForLocation(UInt32 location_id) { | |
| 765 for (std::set<XboxController*>::iterator i = controllers_.begin(); | |
| 766 i != controllers_.end(); | |
| 767 ++i) { | |
| 768 if ((*i)->location_id() == location_id) | |
| 769 return *i; | |
| 770 } | |
| 771 return NULL; | |
| 772 } | |
| 773 | |
| 774 void XboxDataFetcher::AddController(XboxController* controller) { | |
| 775 DCHECK(!ControllerForLocation(controller->location_id())) | |
| 776 << "Controller with location ID " << controller->location_id() | |
| 777 << " already exists in the set of controllers."; | |
| 778 controllers_.insert(controller); | |
| 779 delegate_->XboxDeviceAdd(controller); | |
| 780 } | |
| 781 | |
| 782 void XboxDataFetcher::RemoveController(XboxController* controller) { | |
| 783 delegate_->XboxDeviceRemove(controller); | |
| 784 controllers_.erase(controller); | |
| 785 delete controller; | |
| 786 } | |
| 787 | |
| 788 void XboxDataFetcher::RemoveControllerByLocationID(uint32_t location_id) { | |
| 789 XboxController* controller = NULL; | |
| 790 for (std::set<XboxController*>::iterator i = controllers_.begin(); | |
| 791 i != controllers_.end(); | |
| 792 ++i) { | |
| 793 if ((*i)->location_id() == location_id) { | |
| 794 controller = *i; | |
| 795 break; | |
| 796 } | |
| 797 } | |
| 798 if (controller) | |
| 799 RemoveController(controller); | |
| 800 } | |
| 801 | |
| 802 void XboxDataFetcher::XboxControllerGotData(XboxController* controller, | |
| 803 const XboxController::Data& data) { | |
| 804 delegate_->XboxValueChanged(controller, data); | |
| 805 } | |
| 806 | |
| 807 void XboxDataFetcher::XboxControllerError(XboxController* controller) { | |
| 808 RemoveController(controller); | |
| 809 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1586663006:
Refactoring gamepad polling to support dynamically added sources (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master