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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 "device/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 | |
| 170 ? 0 | |
| 171 : static_cast<float>(value - kXboxOneTriggerDeadzone) / | |
| 172 (kXboxOneTriggerMax - kXboxOneTriggerDeadzone); | |
| 173 } | |
| 174 | |
| 175 void NormalizeXbox360ButtonData(const Xbox360ButtonData& data, | |
| 176 XboxController::Data* normalized_data) { | |
| 177 normalized_data->buttons[0] = data.a; | |
| 178 normalized_data->buttons[1] = data.b; | |
| 179 normalized_data->buttons[2] = data.x; | |
| 180 normalized_data->buttons[3] = data.y; | |
| 181 normalized_data->buttons[4] = data.bumper_left; | |
| 182 normalized_data->buttons[5] = data.bumper_right; | |
| 183 normalized_data->buttons[6] = data.back; | |
| 184 normalized_data->buttons[7] = data.start; | |
| 185 normalized_data->buttons[8] = data.stick_left_click; | |
| 186 normalized_data->buttons[9] = data.stick_right_click; | |
| 187 normalized_data->buttons[10] = data.dpad_up; | |
| 188 normalized_data->buttons[11] = data.dpad_down; | |
| 189 normalized_data->buttons[12] = data.dpad_left; | |
| 190 normalized_data->buttons[13] = data.dpad_right; | |
| 191 normalized_data->buttons[14] = data.guide; | |
| 192 normalized_data->triggers[0] = NormalizeTrigger(data.trigger_left); | |
| 193 normalized_data->triggers[1] = NormalizeTrigger(data.trigger_right); | |
| 194 NormalizeAxis(data.stick_left_x, data.stick_left_y, kLeftThumbDeadzone, | |
| 195 &normalized_data->axes[0], &normalized_data->axes[1]); | |
| 196 NormalizeAxis(data.stick_right_x, data.stick_right_y, kRightThumbDeadzone, | |
| 197 &normalized_data->axes[2], &normalized_data->axes[3]); | |
| 198 } | |
| 199 | |
| 200 void NormalizeXboxOneButtonData(const XboxOneButtonData& data, | |
| 201 XboxController::Data* normalized_data) { | |
| 202 normalized_data->buttons[0] = data.a; | |
| 203 normalized_data->buttons[1] = data.b; | |
| 204 normalized_data->buttons[2] = data.x; | |
| 205 normalized_data->buttons[3] = data.y; | |
| 206 normalized_data->buttons[4] = data.bumper_left; | |
| 207 normalized_data->buttons[5] = data.bumper_right; | |
| 208 normalized_data->buttons[6] = data.back; | |
| 209 normalized_data->buttons[7] = data.start; | |
| 210 normalized_data->buttons[8] = data.stick_left_click; | |
| 211 normalized_data->buttons[9] = data.stick_right_click; | |
| 212 normalized_data->buttons[10] = data.dpad_up; | |
| 213 normalized_data->buttons[11] = data.dpad_down; | |
| 214 normalized_data->buttons[12] = data.dpad_left; | |
| 215 normalized_data->buttons[13] = data.dpad_right; | |
| 216 normalized_data->buttons[14] = data.sync; | |
| 217 normalized_data->triggers[0] = NormalizeXboxOneTrigger(data.trigger_left); | |
| 218 normalized_data->triggers[1] = NormalizeXboxOneTrigger(data.trigger_right); | |
| 219 NormalizeAxis(data.stick_left_x, data.stick_left_y, kLeftThumbDeadzone, | |
| 220 &normalized_data->axes[0], &normalized_data->axes[1]); | |
| 221 NormalizeAxis(data.stick_right_x, data.stick_right_y, kRightThumbDeadzone, | |
| 222 &normalized_data->axes[2], &normalized_data->axes[3]); | |
| 223 } | |
| 224 | |
| 225 } // namespace | |
| 226 | |
| 227 XboxController::XboxController(Delegate* delegate) | |
| 228 : device_(NULL), | |
| 229 interface_(NULL), | |
| 230 device_is_open_(false), | |
| 231 interface_is_open_(false), | |
| 232 read_buffer_size_(0), | |
| 233 led_pattern_(LED_NUM_PATTERNS), | |
| 234 location_id_(0), | |
| 235 delegate_(delegate), | |
| 236 controller_type_(UNKNOWN_CONTROLLER), | |
| 237 read_endpoint_(0), | |
| 238 control_endpoint_(0) {} | |
| 239 | |
| 240 XboxController::~XboxController() { | |
| 241 if (source_) | |
| 242 CFRunLoopSourceInvalidate(source_); | |
| 243 if (interface_ && interface_is_open_) | |
| 244 (*interface_)->USBInterfaceClose(interface_); | |
| 245 if (device_ && device_is_open_) | |
| 246 (*device_)->USBDeviceClose(device_); | |
| 247 } | |
| 248 | |
| 249 bool XboxController::OpenDevice(io_service_t service) { | |
| 250 IOCFPlugInInterface** plugin; | |
| 251 SInt32 score; // Unused, but required for IOCreatePlugInInterfaceForService. | |
| 252 kern_return_t kr = IOCreatePlugInInterfaceForService( | |
| 253 service, kIOUSBDeviceUserClientTypeID, kIOCFPlugInInterfaceID, &plugin, | |
| 254 &score); | |
| 255 if (kr != KERN_SUCCESS) | |
| 256 return false; | |
| 257 base::mac::ScopedIOPluginInterface<IOCFPlugInInterface> plugin_ref(plugin); | |
| 258 | |
| 259 HRESULT res = (*plugin)->QueryInterface( | |
| 260 plugin, CFUUIDGetUUIDBytes(kIOUSBDeviceInterfaceID320), | |
| 261 (LPVOID*)&device_); | |
| 262 if (!SUCCEEDED(res) || !device_) | |
| 263 return false; | |
| 264 | |
| 265 UInt16 vendor_id; | |
| 266 kr = (*device_)->GetDeviceVendor(device_, &vendor_id); | |
| 267 if (kr != KERN_SUCCESS || vendor_id != kVendorMicrosoft) | |
| 268 return false; | |
| 269 | |
| 270 UInt16 product_id; | |
| 271 kr = (*device_)->GetDeviceProduct(device_, &product_id); | |
| 272 if (kr != KERN_SUCCESS) | |
| 273 return false; | |
| 274 | |
| 275 IOUSBFindInterfaceRequest request; | |
| 276 switch (product_id) { | |
| 277 case kProductXbox360Controller: | |
| 278 controller_type_ = XBOX_360_CONTROLLER; | |
| 279 read_endpoint_ = kXbox360ReadEndpoint; | |
| 280 control_endpoint_ = kXbox360ControlEndpoint; | |
| 281 request.bInterfaceClass = 255; | |
| 282 request.bInterfaceSubClass = 93; | |
| 283 request.bInterfaceProtocol = 1; | |
| 284 request.bAlternateSetting = kIOUSBFindInterfaceDontCare; | |
| 285 break; | |
| 286 case kProductXboxOneController: | |
| 287 controller_type_ = XBOX_ONE_CONTROLLER; | |
| 288 read_endpoint_ = kXboxOneReadEndpoint; | |
| 289 control_endpoint_ = kXboxOneControlEndpoint; | |
| 290 request.bInterfaceClass = 255; | |
| 291 request.bInterfaceSubClass = 71; | |
| 292 request.bInterfaceProtocol = 208; | |
| 293 request.bAlternateSetting = kIOUSBFindInterfaceDontCare; | |
| 294 break; | |
| 295 default: | |
| 296 return false; | |
| 297 } | |
| 298 | |
| 299 // Open the device and configure it. | |
| 300 kr = (*device_)->USBDeviceOpen(device_); | |
| 301 if (kr != KERN_SUCCESS) | |
| 302 return false; | |
| 303 device_is_open_ = true; | |
| 304 | |
| 305 // Xbox controllers have one configuration option which has configuration | |
| 306 // value 1. Try to set it and fail if it couldn't be configured. | |
| 307 IOUSBConfigurationDescriptorPtr config_desc; | |
| 308 kr = (*device_)->GetConfigurationDescriptorPtr(device_, 0, &config_desc); | |
| 309 if (kr != KERN_SUCCESS) | |
| 310 return false; | |
| 311 kr = (*device_)->SetConfiguration(device_, config_desc->bConfigurationValue); | |
| 312 if (kr != KERN_SUCCESS) | |
| 313 return false; | |
| 314 | |
| 315 // The device has 4 interfaces. They are as follows: | |
| 316 // Protocol 1: | |
| 317 // - Endpoint 1 (in) : Controller events, including button presses. | |
| 318 // - Endpoint 2 (out): Rumble pack and LED control | |
| 319 // Protocol 2 has a single endpoint to read from a connected ChatPad device. | |
| 320 // Protocol 3 is used by a connected headset device. | |
| 321 // The device also has an interface on subclass 253, protocol 10 with no | |
| 322 // endpoints. It is unused. | |
| 323 // | |
| 324 // We don't currently support the ChatPad or headset, so protocol 1 is the | |
| 325 // only protocol we care about. | |
| 326 // | |
| 327 // For more detail, see | |
| 328 // https://github.com/Grumbel/xboxdrv/blob/master/PROTOCOL | |
| 329 io_iterator_t iter; | |
| 330 kr = (*device_)->CreateInterfaceIterator(device_, &request, &iter); | |
| 331 if (kr != KERN_SUCCESS) | |
| 332 return false; | |
| 333 base::mac::ScopedIOObject<io_iterator_t> iter_ref(iter); | |
| 334 | |
| 335 // There should be exactly one USB interface which matches the requested | |
| 336 // settings. | |
| 337 io_service_t usb_interface = IOIteratorNext(iter); | |
| 338 if (!usb_interface) | |
| 339 return false; | |
| 340 | |
| 341 // We need to make an InterfaceInterface to communicate with the device | |
| 342 // endpoint. This is the same process as earlier: first make a | |
| 343 // PluginInterface from the io_service then make the InterfaceInterface from | |
| 344 // that. | |
| 345 IOCFPlugInInterface** plugin_interface; | |
| 346 kr = IOCreatePlugInInterfaceForService( | |
| 347 usb_interface, kIOUSBInterfaceUserClientTypeID, kIOCFPlugInInterfaceID, | |
| 348 &plugin_interface, &score); | |
| 349 if (kr != KERN_SUCCESS || !plugin_interface) | |
| 350 return false; | |
| 351 base::mac::ScopedIOPluginInterface<IOCFPlugInInterface> interface_ref( | |
| 352 plugin_interface); | |
| 353 | |
| 354 // Release the USB interface, and any subsequent interfaces returned by the | |
| 355 // iterator. (There shouldn't be any, but in case a future device does | |
| 356 // contain more interfaces, this will serve to avoid memory leaks.) | |
| 357 do { | |
| 358 IOObjectRelease(usb_interface); | |
| 359 } while ((usb_interface = IOIteratorNext(iter))); | |
| 360 | |
| 361 // Actually create the interface. | |
| 362 res = (*plugin_interface) | |
| 363 ->QueryInterface(plugin_interface, | |
| 364 CFUUIDGetUUIDBytes(kIOUSBInterfaceInterfaceID300), | |
| 365 (LPVOID*)&interface_); | |
| 366 | |
| 367 if (!SUCCEEDED(res) || !interface_) | |
| 368 return false; | |
| 369 | |
| 370 // Actually open the interface. | |
| 371 kr = (*interface_)->USBInterfaceOpen(interface_); | |
| 372 if (kr != KERN_SUCCESS) | |
| 373 return false; | |
| 374 interface_is_open_ = true; | |
| 375 | |
| 376 CFRunLoopSourceRef source_ref; | |
| 377 kr = (*interface_)->CreateInterfaceAsyncEventSource(interface_, &source_ref); | |
| 378 if (kr != KERN_SUCCESS || !source_ref) | |
| 379 return false; | |
| 380 source_.reset(source_ref); | |
| 381 CFRunLoopAddSource(CFRunLoopGetCurrent(), source_, kCFRunLoopDefaultMode); | |
| 382 | |
| 383 // The interface should have two pipes. Pipe 1 with direction kUSBIn and pipe | |
| 384 // 2 with direction kUSBOut. Both pipes should have type kUSBInterrupt. | |
| 385 uint8_t num_endpoints; | |
| 386 kr = (*interface_)->GetNumEndpoints(interface_, &num_endpoints); | |
| 387 if (kr != KERN_SUCCESS || num_endpoints < 2) | |
| 388 return false; | |
| 389 | |
| 390 for (int i = 1; i <= 2; i++) { | |
| 391 uint8_t direction; | |
| 392 uint8_t number; | |
| 393 uint8_t transfer_type; | |
| 394 uint16_t max_packet_size; | |
| 395 uint8_t interval; | |
| 396 | |
| 397 kr = (*interface_) | |
| 398 ->GetPipeProperties(interface_, i, &direction, &number, | |
| 399 &transfer_type, &max_packet_size, &interval); | |
| 400 if (kr != KERN_SUCCESS || transfer_type != kUSBInterrupt) { | |
| 401 return false; | |
| 402 } | |
| 403 if (i == read_endpoint_) { | |
| 404 if (direction != kUSBIn) | |
| 405 return false; | |
| 406 read_buffer_.reset(new uint8_t[max_packet_size]); | |
| 407 read_buffer_size_ = max_packet_size; | |
| 408 QueueRead(); | |
| 409 } else if (i == control_endpoint_) { | |
| 410 if (direction != kUSBOut) | |
| 411 return false; | |
| 412 if (controller_type_ == XBOX_ONE_CONTROLLER) | |
| 413 WriteXboxOneInit(); | |
| 414 } | |
| 415 } | |
| 416 | |
| 417 // The location ID is unique per controller, and can be used to track | |
| 418 // controllers through reconnections (though if a controller is detached from | |
| 419 // one USB hub and attached to another, the location ID will change). | |
| 420 kr = (*device_)->GetLocationID(device_, &location_id_); | |
| 421 if (kr != KERN_SUCCESS) | |
| 422 return false; | |
| 423 | |
| 424 return true; | |
| 425 } | |
| 426 | |
| 427 void XboxController::SetLEDPattern(LEDPattern pattern) { | |
| 428 led_pattern_ = pattern; | |
| 429 const UInt8 length = 3; | |
| 430 | |
| 431 // This buffer will be released in WriteComplete when WritePipeAsync | |
| 432 // finishes. | |
| 433 UInt8* buffer = new UInt8[length]; | |
| 434 buffer[0] = static_cast<UInt8>(CONTROL_MESSAGE_SET_LED); | |
| 435 buffer[1] = length; | |
| 436 buffer[2] = static_cast<UInt8>(pattern); | |
| 437 kern_return_t kr = | |
| 438 (*interface_) | |
| 439 ->WritePipeAsync(interface_, control_endpoint_, buffer, | |
| 440 (UInt32)length, WriteComplete, buffer); | |
| 441 if (kr != KERN_SUCCESS) { | |
| 442 delete[] buffer; | |
| 443 IOError(); | |
| 444 return; | |
| 445 } | |
| 446 } | |
| 447 | |
| 448 int XboxController::GetVendorId() const { | |
| 449 return kVendorMicrosoft; | |
| 450 } | |
| 451 | |
| 452 int XboxController::GetProductId() const { | |
| 453 if (controller_type_ == XBOX_360_CONTROLLER) | |
| 454 return kProductXbox360Controller; | |
| 455 else | |
| 456 return kProductXboxOneController; | |
| 457 } | |
| 458 | |
| 459 XboxController::ControllerType XboxController::GetControllerType() const { | |
| 460 return controller_type_; | |
| 461 } | |
| 462 | |
| 463 void XboxController::WriteComplete(void* context, IOReturn result, void* arg0) { | |
| 464 UInt8* buffer = static_cast<UInt8*>(context); | |
| 465 delete[] buffer; | |
| 466 | |
| 467 // Ignoring any errors sending data, because they will usually only occur | |
| 468 // when the device is disconnected, in which case it really doesn't matter if | |
| 469 // the data got to the controller or not. | |
| 470 if (result != kIOReturnSuccess) | |
| 471 return; | |
| 472 } | |
| 473 | |
| 474 void XboxController::GotData(void* context, IOReturn result, void* arg0) { | |
| 475 size_t bytes_read = reinterpret_cast<size_t>(arg0); | |
| 476 XboxController* controller = static_cast<XboxController*>(context); | |
| 477 | |
| 478 if (result != kIOReturnSuccess) { | |
| 479 // This will happen if the device was disconnected. The gamepad has | |
| 480 // probably been destroyed by a meteorite. | |
| 481 controller->IOError(); | |
| 482 return; | |
| 483 } | |
| 484 | |
| 485 if (controller->GetControllerType() == XBOX_360_CONTROLLER) | |
| 486 controller->ProcessXbox360Packet(bytes_read); | |
| 487 else | |
| 488 controller->ProcessXboxOnePacket(bytes_read); | |
| 489 | |
| 490 // Queue up another read. | |
| 491 controller->QueueRead(); | |
| 492 } | |
| 493 | |
| 494 void XboxController::ProcessXbox360Packet(size_t length) { | |
| 495 if (length < 2) | |
| 496 return; | |
| 497 DCHECK(length <= read_buffer_size_); | |
| 498 if (length > read_buffer_size_) { | |
| 499 IOError(); | |
| 500 return; | |
| 501 } | |
| 502 uint8_t* buffer = read_buffer_.get(); | |
| 503 | |
| 504 if (buffer[1] != length) | |
| 505 // Length in packet doesn't match length reported by USB. | |
| 506 return; | |
| 507 | |
| 508 uint8_t type = buffer[0]; | |
| 509 buffer += 2; | |
| 510 length -= 2; | |
| 511 switch (type) { | |
| 512 case STATUS_MESSAGE_BUTTONS: { | |
| 513 if (length != sizeof(Xbox360ButtonData)) | |
| 514 return; | |
| 515 Xbox360ButtonData* data = reinterpret_cast<Xbox360ButtonData*>(buffer); | |
| 516 Data normalized_data; | |
| 517 NormalizeXbox360ButtonData(*data, &normalized_data); | |
| 518 delegate_->XboxControllerGotData(this, normalized_data); | |
| 519 break; | |
| 520 } | |
| 521 case STATUS_MESSAGE_LED: | |
| 522 if (length != 3) | |
| 523 return; | |
| 524 // The controller sends one of these messages every time the LED pattern | |
| 525 // is set, as well as once when it is plugged in. | |
| 526 if (led_pattern_ == LED_NUM_PATTERNS && buffer[0] < LED_NUM_PATTERNS) | |
| 527 led_pattern_ = static_cast<LEDPattern>(buffer[0]); | |
| 528 break; | |
| 529 default: | |
| 530 // Unknown packet: ignore! | |
| 531 break; | |
| 532 } | |
| 533 } | |
| 534 | |
| 535 void XboxController::ProcessXboxOnePacket(size_t length) { | |
| 536 if (length < 2) | |
| 537 return; | |
| 538 DCHECK(length <= read_buffer_size_); | |
| 539 if (length > read_buffer_size_) { | |
| 540 IOError(); | |
| 541 return; | |
| 542 } | |
| 543 uint8_t* buffer = read_buffer_.get(); | |
| 544 | |
| 545 uint8_t type = buffer[0]; | |
| 546 buffer += 4; | |
| 547 length -= 4; | |
| 548 switch (type) { | |
| 549 case XBOX_ONE_STATUS_MESSAGE_BUTTONS: { | |
| 550 if (length != sizeof(XboxOneButtonData)) | |
| 551 return; | |
| 552 XboxOneButtonData* data = reinterpret_cast<XboxOneButtonData*>(buffer); | |
| 553 Data normalized_data; | |
| 554 NormalizeXboxOneButtonData(*data, &normalized_data); | |
| 555 delegate_->XboxControllerGotData(this, normalized_data); | |
| 556 break; | |
| 557 } | |
| 558 default: | |
| 559 // Unknown packet: ignore! | |
| 560 break; | |
| 561 } | |
| 562 } | |
| 563 | |
| 564 void XboxController::QueueRead() { | |
| 565 kern_return_t kr = | |
| 566 (*interface_) | |
| 567 ->ReadPipeAsync(interface_, read_endpoint_, read_buffer_.get(), | |
| 568 read_buffer_size_, GotData, this); | |
| 569 if (kr != KERN_SUCCESS) | |
| 570 IOError(); | |
| 571 } | |
| 572 | |
| 573 void XboxController::IOError() { | |
| 574 delegate_->XboxControllerError(this); | |
| 575 } | |
| 576 | |
| 577 void XboxController::WriteXboxOneInit() { | |
| 578 const UInt8 length = 2; | |
| 579 | |
| 580 // This buffer will be released in WriteComplete when WritePipeAsync | |
| 581 // finishes. | |
| 582 UInt8* buffer = new UInt8[length]; | |
| 583 buffer[0] = 0x05; | |
| 584 buffer[1] = 0x20; | |
| 585 kern_return_t kr = | |
| 586 (*interface_) | |
| 587 ->WritePipeAsync(interface_, control_endpoint_, buffer, | |
| 588 (UInt32)length, WriteComplete, buffer); | |
| 589 if (kr != KERN_SUCCESS) { | |
| 590 delete[] buffer; | |
| 591 IOError(); | |
| 592 return; | |
| 593 } | |
| 594 } | |
| 595 | |
| 596 //----------------------------------------------------------------------------- | |
| 597 | |
| 598 XboxDataFetcher::XboxDataFetcher(Delegate* delegate) | |
| 599 : delegate_(delegate), listening_(false), source_(NULL), port_(NULL) {} | |
| 600 | |
| 601 XboxDataFetcher::~XboxDataFetcher() { | |
| 602 while (!controllers_.empty()) { | |
| 603 RemoveController(*controllers_.begin()); | |
| 604 } | |
| 605 UnregisterFromNotifications(); | |
| 606 } | |
| 607 | |
| 608 void XboxDataFetcher::DeviceAdded(void* context, io_iterator_t iterator) { | |
| 609 DCHECK(context); | |
| 610 XboxDataFetcher* fetcher = static_cast<XboxDataFetcher*>(context); | |
| 611 io_service_t ref; | |
| 612 while ((ref = IOIteratorNext(iterator))) { | |
| 613 base::mac::ScopedIOObject<io_service_t> scoped_ref(ref); | |
| 614 XboxController* controller = new XboxController(fetcher); | |
| 615 if (controller->OpenDevice(ref)) { | |
| 616 fetcher->AddController(controller); | |
| 617 } else { | |
| 618 delete controller; | |
| 619 } | |
| 620 } | |
| 621 } | |
| 622 | |
| 623 void XboxDataFetcher::DeviceRemoved(void* context, io_iterator_t iterator) { | |
| 624 DCHECK(context); | |
| 625 XboxDataFetcher* fetcher = static_cast<XboxDataFetcher*>(context); | |
| 626 io_service_t ref; | |
| 627 while ((ref = IOIteratorNext(iterator))) { | |
| 628 base::mac::ScopedIOObject<io_service_t> scoped_ref(ref); | |
| 629 base::ScopedCFTypeRef<CFNumberRef> number( | |
| 630 base::mac::CFCastStrict<CFNumberRef>(IORegistryEntryCreateCFProperty( | |
| 631 ref, CFSTR(kUSBDevicePropertyLocationID), kCFAllocatorDefault, | |
| 632 kNilOptions))); | |
| 633 UInt32 location_id = 0; | |
| 634 CFNumberGetValue(number, kCFNumberSInt32Type, &location_id); | |
| 635 fetcher->RemoveControllerByLocationID(location_id); | |
| 636 } | |
| 637 } | |
| 638 | |
| 639 bool XboxDataFetcher::RegisterForNotifications() { | |
| 640 if (listening_) | |
| 641 return true; | |
| 642 port_ = IONotificationPortCreate(kIOMasterPortDefault); | |
| 643 if (!port_) | |
| 644 return false; | |
| 645 source_ = IONotificationPortGetRunLoopSource(port_); | |
| 646 if (!source_) | |
| 647 return false; | |
| 648 CFRunLoopAddSource(CFRunLoopGetCurrent(), source_, kCFRunLoopDefaultMode); | |
| 649 | |
| 650 listening_ = true; | |
| 651 | |
| 652 if (!RegisterForDeviceNotifications( | |
| 653 kVendorMicrosoft, kProductXboxOneController, | |
| 654 &xbox_one_device_added_iter_, &xbox_one_device_removed_iter_)) | |
| 655 return false; | |
| 656 | |
| 657 if (!RegisterForDeviceNotifications( | |
| 658 kVendorMicrosoft, kProductXbox360Controller, | |
| 659 &xbox_360_device_added_iter_, &xbox_360_device_removed_iter_)) | |
| 660 return false; | |
| 661 | |
| 662 return true; | |
| 663 } | |
| 664 | |
| 665 bool XboxDataFetcher::RegisterForDeviceNotifications( | |
| 666 int vendor_id, | |
| 667 int product_id, | |
| 668 base::mac::ScopedIOObject<io_iterator_t>* added_iter, | |
| 669 base::mac::ScopedIOObject<io_iterator_t>* removed_iter) { | |
| 670 base::ScopedCFTypeRef<CFNumberRef> vendor_cf( | |
| 671 CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vendor_id)); | |
| 672 base::ScopedCFTypeRef<CFNumberRef> product_cf( | |
| 673 CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &product_id)); | |
| 674 base::ScopedCFTypeRef<CFMutableDictionaryRef> matching_dict( | |
| 675 IOServiceMatching(kIOUSBDeviceClassName)); | |
| 676 if (!matching_dict) | |
| 677 return false; | |
| 678 CFDictionarySetValue(matching_dict, CFSTR(kUSBVendorID), vendor_cf); | |
| 679 CFDictionarySetValue(matching_dict, CFSTR(kUSBProductID), product_cf); | |
| 680 | |
| 681 // IOServiceAddMatchingNotification() releases the dictionary when it's done. | |
| 682 // Retain it before each call to IOServiceAddMatchingNotification to keep | |
| 683 // things balanced. | |
| 684 CFRetain(matching_dict); | |
| 685 io_iterator_t device_added_iter; | |
| 686 IOReturn ret; | |
| 687 ret = IOServiceAddMatchingNotification(port_, kIOFirstMatchNotification, | |
| 688 matching_dict, DeviceAdded, this, | |
| 689 &device_added_iter); | |
| 690 added_iter->reset(device_added_iter); | |
| 691 if (ret != kIOReturnSuccess) { | |
| 692 LOG(ERROR) << "Error listening for Xbox controller add events: " << ret; | |
| 693 return false; | |
| 694 } | |
| 695 DeviceAdded(this, added_iter->get()); | |
| 696 | |
| 697 CFRetain(matching_dict); | |
| 698 io_iterator_t device_removed_iter; | |
| 699 ret = IOServiceAddMatchingNotification(port_, kIOTerminatedNotification, | |
| 700 matching_dict, DeviceRemoved, this, | |
| 701 &device_removed_iter); | |
| 702 removed_iter->reset(device_removed_iter); | |
| 703 if (ret != kIOReturnSuccess) { | |
| 704 LOG(ERROR) << "Error listening for Xbox controller remove events: " << ret; | |
| 705 return false; | |
| 706 } | |
| 707 DeviceRemoved(this, removed_iter->get()); | |
| 708 return true; | |
| 709 } | |
| 710 | |
| 711 void XboxDataFetcher::UnregisterFromNotifications() { | |
| 712 if (!listening_) | |
| 713 return; | |
| 714 listening_ = false; | |
| 715 if (source_) | |
| 716 CFRunLoopSourceInvalidate(source_); | |
| 717 if (port_) | |
| 718 IONotificationPortDestroy(port_); | |
| 719 port_ = NULL; | |
| 720 } | |
| 721 | |
| 722 XboxController* XboxDataFetcher::ControllerForLocation(UInt32 location_id) { | |
| 723 for (std::set<XboxController*>::iterator i = controllers_.begin(); | |
| 724 i != controllers_.end(); ++i) { | |
| 725 if ((*i)->location_id() == location_id) | |
| 726 return *i; | |
| 727 } | |
| 728 return NULL; | |
| 729 } | |
| 730 | |
| 731 void XboxDataFetcher::AddController(XboxController* controller) { | |
| 732 DCHECK(!ControllerForLocation(controller->location_id())) | |
| 733 << "Controller with location ID " << controller->location_id() | |
| 734 << " already exists in the set of controllers."; | |
| 735 controllers_.insert(controller); | |
| 736 delegate_->XboxDeviceAdd(controller); | |
| 737 } | |
| 738 | |
| 739 void XboxDataFetcher::RemoveController(XboxController* controller) { | |
| 740 delegate_->XboxDeviceRemove(controller); | |
| 741 controllers_.erase(controller); | |
| 742 delete controller; | |
| 743 } | |
| 744 | |
| 745 void XboxDataFetcher::RemoveControllerByLocationID(uint32_t location_id) { | |
| 746 XboxController* controller = NULL; | |
| 747 for (std::set<XboxController*>::iterator i = controllers_.begin(); | |
| 748 i != controllers_.end(); ++i) { | |
| 749 if ((*i)->location_id() == location_id) { | |
| 750 controller = *i; | |
| 751 break; | |
| 752 } | |
| 753 } | |
| 754 if (controller) | |
| 755 RemoveController(controller); | |
| 756 } | |
| 757 | |
| 758 void XboxDataFetcher::XboxControllerGotData(XboxController* controller, | |
| 759 const XboxController::Data& data) { | |
| 760 delegate_->XboxValueChanged(controller, data); | |
| 761 } | |
| 762 | |
| 763 void XboxDataFetcher::XboxControllerError(XboxController* controller) { | |
| 764 RemoveController(controller); | |
| 765 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2129003002:
Refactored gamepad polling to support dynamic sources (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master