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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 using blink::WebGamepad; | |
| 21 | |
| 22 namespace content { | |
| 23 | |
| 24 namespace { | |
| 25 const int kVendorMicrosoft = 0x045e; | |
| 26 const int kProductXbox360Controller = 0x028e; | |
| 27 const int kProductXboxOneController = 0x02d1; | |
| 28 | |
| 29 const int kXbox360ReadEndpoint = 1; | |
| 30 const int kXbox360ControlEndpoint = 2; | |
| 31 | |
| 32 const int kXboxOneReadEndpoint = 2; | |
| 33 const int kXboxOneControlEndpoint = 1; | |
| 34 | |
| 35 enum { | |
| 36 STATUS_MESSAGE_BUTTONS = 0, | |
| 37 STATUS_MESSAGE_LED = 1, | |
| 38 | |
| 39 // Apparently this message tells you if the rumble pack is disabled in the | |
| 40 // controller. If the rumble pack is disabled, vibration control messages | |
| 41 // have no effect. | |
| 42 STATUS_MESSAGE_RUMBLE = 3, | |
| 43 }; | |
| 44 | |
| 45 enum { | |
| 46 XBOX_ONE_STATUS_MESSAGE_BUTTONS = 0x20, | |
| 47 }; | |
| 48 | |
| 49 enum { | |
| 50 CONTROL_MESSAGE_SET_RUMBLE = 0, | |
| 51 CONTROL_MESSAGE_SET_LED = 1, | |
| 52 }; | |
| 53 | |
| 54 #pragma pack(push, 1) | |
| 55 struct Xbox360ButtonData { | |
| 56 bool dpad_up : 1; | |
| 57 bool dpad_down : 1; | |
| 58 bool dpad_left : 1; | |
| 59 bool dpad_right : 1; | |
| 60 | |
| 61 bool start : 1; | |
| 62 bool back : 1; | |
| 63 bool stick_left_click : 1; | |
| 64 bool stick_right_click : 1; | |
| 65 | |
| 66 bool bumper_left : 1; | |
| 67 bool bumper_right : 1; | |
| 68 bool guide : 1; | |
| 69 bool dummy1 : 1; // Always 0. | |
| 70 | |
| 71 bool a : 1; | |
| 72 bool b : 1; | |
| 73 bool x : 1; | |
| 74 bool y : 1; | |
| 75 | |
| 76 uint8_t trigger_left; | |
| 77 uint8_t trigger_right; | |
| 78 | |
| 79 int16_t stick_left_x; | |
| 80 int16_t stick_left_y; | |
| 81 int16_t stick_right_x; | |
| 82 int16_t stick_right_y; | |
| 83 | |
| 84 // Always 0. | |
| 85 uint32_t dummy2; | |
| 86 uint16_t dummy3; | |
| 87 }; | |
| 88 | |
| 89 struct XboxOneButtonData { | |
| 90 bool sync : 1; | |
| 91 bool dummy1 : 1; // Always 0. | |
| 92 bool start : 1; | |
| 93 bool back : 1; | |
| 94 | |
| 95 bool a : 1; | |
| 96 bool b : 1; | |
| 97 bool x : 1; | |
| 98 bool y : 1; | |
| 99 | |
| 100 bool dpad_up : 1; | |
| 101 bool dpad_down : 1; | |
| 102 bool dpad_left : 1; | |
| 103 bool dpad_right : 1; | |
| 104 | |
| 105 bool bumper_left : 1; | |
| 106 bool bumper_right : 1; | |
| 107 bool stick_left_click : 1; | |
| 108 bool stick_right_click : 1; | |
| 109 | |
| 110 uint16_t trigger_left; | |
| 111 uint16_t trigger_right; | |
| 112 | |
| 113 int16_t stick_left_x; | |
| 114 int16_t stick_left_y; | |
| 115 int16_t stick_right_x; | |
| 116 int16_t stick_right_y; | |
| 117 }; | |
| 118 #pragma pack(pop) | |
| 119 | |
| 120 static_assert(sizeof(Xbox360ButtonData) == 18, "xbox button data wrong size"); | |
| 121 static_assert(sizeof(XboxOneButtonData) == 14, "xbox button data wrong size"); | |
| 122 | |
| 123 // From MSDN: | |
| 124 // http://msdn.microsoft.com/en-us/library/windows/desktop/ee417001(v=vs.85).asp
x#dead_zone | |
| 125 const int16_t kLeftThumbDeadzone = 7849; | |
| 126 const int16_t kRightThumbDeadzone = 8689; | |
| 127 const uint8_t kXbox360TriggerDeadzone = 30; | |
| 128 const uint16_t kXboxOneTriggerMax = 1023; | |
| 129 const uint16_t kXboxOneTriggerDeadzone = 120; | |
| 130 | |
| 131 void NormalizeAxis(int16_t x, | |
| 132 int16_t y, | |
| 133 int16_t deadzone, | |
| 134 float* x_out, | |
| 135 float* y_out) { | |
| 136 float x_val = x; | |
| 137 float y_val = y; | |
| 138 | |
| 139 // Determine how far the stick is pushed. | |
| 140 float real_magnitude = std::sqrt(x_val * x_val + y_val * y_val); | |
| 141 | |
| 142 // Check if the controller is outside a circular dead zone. | |
| 143 if (real_magnitude > deadzone) { | |
| 144 // Clip the magnitude at its expected maximum value. | |
| 145 float magnitude = std::min(32767.0f, real_magnitude); | |
| 146 | |
| 147 // Adjust magnitude relative to the end of the dead zone. | |
| 148 magnitude -= deadzone; | |
| 149 | |
| 150 // Normalize the magnitude with respect to its expected range giving a | |
| 151 // magnitude value of 0.0 to 1.0 | |
| 152 float ratio = (magnitude / (32767 - deadzone)) / real_magnitude; | |
| 153 | |
| 154 // Y is negated because xbox controllers have an opposite sign from | |
| 155 // the 'standard controller' recommendations. | |
| 156 *x_out = x_val * ratio; | |
| 157 *y_out = -y_val * ratio; | |
| 158 } else { | |
| 159 // If the controller is in the deadzone zero out the magnitude. | |
| 160 *x_out = *y_out = 0.0f; | |
| 161 } | |
| 162 } | |
| 163 | |
| 164 float NormalizeTrigger(uint8_t value) { | |
| 165 return value < kXbox360TriggerDeadzone | |
| 166 ? 0 | |
| 167 : static_cast<float>(value - kXbox360TriggerDeadzone) / | |
| 168 (std::numeric_limits<uint8_t>::max() - | |
| 169 kXbox360TriggerDeadzone); | |
| 170 } | |
| 171 | |
| 172 float NormalizeXboxOneTrigger(uint16_t value) { | |
| 173 return value < kXboxOneTriggerDeadzone ? 0 : | |
| 174 static_cast<float>(value - kXboxOneTriggerDeadzone) / | |
| 175 (kXboxOneTriggerMax - kXboxOneTriggerDeadzone); | |
| 176 } | |
| 177 | |
| 178 void NormalizeXbox360ButtonData(const Xbox360ButtonData& data, | |
| 179 XboxController::Data* normalized_data) { | |
| 180 normalized_data->buttons[0] = data.a; | |
| 181 normalized_data->buttons[1] = data.b; | |
| 182 normalized_data->buttons[2] = data.x; | |
| 183 normalized_data->buttons[3] = data.y; | |
| 184 normalized_data->buttons[4] = data.bumper_left; | |
| 185 normalized_data->buttons[5] = data.bumper_right; | |
| 186 normalized_data->buttons[6] = data.back; | |
| 187 normalized_data->buttons[7] = data.start; | |
| 188 normalized_data->buttons[8] = data.stick_left_click; | |
| 189 normalized_data->buttons[9] = data.stick_right_click; | |
| 190 normalized_data->buttons[10] = data.dpad_up; | |
| 191 normalized_data->buttons[11] = data.dpad_down; | |
| 192 normalized_data->buttons[12] = data.dpad_left; | |
| 193 normalized_data->buttons[13] = data.dpad_right; | |
| 194 normalized_data->buttons[14] = data.guide; | |
| 195 normalized_data->triggers[0] = NormalizeTrigger(data.trigger_left); | |
| 196 normalized_data->triggers[1] = NormalizeTrigger(data.trigger_right); | |
| 197 NormalizeAxis(data.stick_left_x, | |
| 198 data.stick_left_y, | |
| 199 kLeftThumbDeadzone, | |
| 200 &normalized_data->axes[0], | |
| 201 &normalized_data->axes[1]); | |
| 202 NormalizeAxis(data.stick_right_x, | |
| 203 data.stick_right_y, | |
| 204 kRightThumbDeadzone, | |
| 205 &normalized_data->axes[2], | |
| 206 &normalized_data->axes[3]); | |
| 207 } | |
| 208 | |
| 209 void NormalizeXboxOneButtonData(const XboxOneButtonData& data, | |
| 210 XboxController::Data* normalized_data) { | |
| 211 normalized_data->buttons[0] = data.a; | |
| 212 normalized_data->buttons[1] = data.b; | |
| 213 normalized_data->buttons[2] = data.x; | |
| 214 normalized_data->buttons[3] = data.y; | |
| 215 normalized_data->buttons[4] = data.bumper_left; | |
| 216 normalized_data->buttons[5] = data.bumper_right; | |
| 217 normalized_data->buttons[6] = data.back; | |
| 218 normalized_data->buttons[7] = data.start; | |
| 219 normalized_data->buttons[8] = data.stick_left_click; | |
| 220 normalized_data->buttons[9] = data.stick_right_click; | |
| 221 normalized_data->buttons[10] = data.dpad_up; | |
| 222 normalized_data->buttons[11] = data.dpad_down; | |
| 223 normalized_data->buttons[12] = data.dpad_left; | |
| 224 normalized_data->buttons[13] = data.dpad_right; | |
| 225 normalized_data->buttons[14] = data.sync; | |
| 226 normalized_data->triggers[0] = NormalizeXboxOneTrigger(data.trigger_left); | |
| 227 normalized_data->triggers[1] = NormalizeXboxOneTrigger(data.trigger_right); | |
| 228 NormalizeAxis(data.stick_left_x, | |
| 229 data.stick_left_y, | |
| 230 kLeftThumbDeadzone, | |
| 231 &normalized_data->axes[0], | |
| 232 &normalized_data->axes[1]); | |
| 233 NormalizeAxis(data.stick_right_x, | |
| 234 data.stick_right_y, | |
| 235 kRightThumbDeadzone, | |
| 236 &normalized_data->axes[2], | |
| 237 &normalized_data->axes[3]); | |
| 238 } | |
| 239 | |
| 240 void CopyNSStringAsUTF16LittleEndian( | |
| 241 NSString* src, blink::WebUChar* dest, size_t dest_len) { | |
| 242 NSData* as16 = [src dataUsingEncoding:NSUTF16LittleEndianStringEncoding]; | |
| 243 memset(dest, 0, dest_len); | |
| 244 [as16 getBytes:dest length:dest_len - sizeof(blink::WebUChar)]; | |
| 245 } | |
| 246 | |
| 247 } // namespace | |
| 248 | |
| 249 XboxController::XboxController(Delegate* delegate) | |
| 250 : device_(NULL), | |
| 251 interface_(NULL), | |
| 252 device_is_open_(false), | |
| 253 interface_is_open_(false), | |
| 254 read_buffer_size_(0), | |
| 255 led_pattern_(LED_NUM_PATTERNS), | |
| 256 location_id_(0), | |
| 257 delegate_(delegate), | |
| 258 controller_type_(UNKNOWN_CONTROLLER), | |
| 259 read_endpoint_(0), | |
| 260 control_endpoint_(0) { | |
| 261 } | |
| 262 | |
| 263 XboxController::~XboxController() { | |
| 264 if (source_) | |
| 265 CFRunLoopSourceInvalidate(source_); | |
| 266 if (interface_ && interface_is_open_) | |
| 267 (*interface_)->USBInterfaceClose(interface_); | |
| 268 if (device_ && device_is_open_) | |
| 269 (*device_)->USBDeviceClose(device_); | |
| 270 } | |
| 271 | |
| 272 bool XboxController::OpenDevice(io_service_t service) { | |
| 273 IOCFPlugInInterface **plugin; | |
| 274 SInt32 score; // Unused, but required for IOCreatePlugInInterfaceForService. | |
| 275 kern_return_t kr = | |
| 276 IOCreatePlugInInterfaceForService(service, | |
| 277 kIOUSBDeviceUserClientTypeID, | |
| 278 kIOCFPlugInInterfaceID, | |
| 279 &plugin, | |
| 280 &score); | |
| 281 if (kr != KERN_SUCCESS) | |
| 282 return false; | |
| 283 base::mac::ScopedIOPluginInterface<IOCFPlugInInterface> plugin_ref(plugin); | |
| 284 | |
| 285 HRESULT res = | |
| 286 (*plugin)->QueryInterface(plugin, | |
| 287 CFUUIDGetUUIDBytes(kIOUSBDeviceInterfaceID320), | |
| 288 (LPVOID *)&device_); | |
| 289 if (!SUCCEEDED(res) || !device_) | |
| 290 return false; | |
| 291 | |
| 292 UInt16 vendor_id; | |
| 293 kr = (*device_)->GetDeviceVendor(device_, &vendor_id); | |
| 294 if (kr != KERN_SUCCESS || vendor_id != kVendorMicrosoft) | |
| 295 return false; | |
| 296 | |
| 297 UInt16 product_id; | |
| 298 kr = (*device_)->GetDeviceProduct(device_, &product_id); | |
| 299 if (kr != KERN_SUCCESS) | |
| 300 return false; | |
| 301 | |
| 302 IOUSBFindInterfaceRequest request; | |
| 303 switch (product_id) { | |
| 304 case kProductXbox360Controller: | |
| 305 controller_type_ = XBOX_360_CONTROLLER; | |
| 306 read_endpoint_ = kXbox360ReadEndpoint; | |
| 307 control_endpoint_ = kXbox360ControlEndpoint; | |
| 308 request.bInterfaceClass = 255; | |
| 309 request.bInterfaceSubClass = 93; | |
| 310 request.bInterfaceProtocol = 1; | |
| 311 request.bAlternateSetting = kIOUSBFindInterfaceDontCare; | |
| 312 break; | |
| 313 case kProductXboxOneController: | |
| 314 controller_type_ = XBOX_ONE_CONTROLLER; | |
| 315 read_endpoint_ = kXboxOneReadEndpoint; | |
| 316 control_endpoint_ = kXboxOneControlEndpoint; | |
| 317 request.bInterfaceClass = 255; | |
| 318 request.bInterfaceSubClass = 71; | |
| 319 request.bInterfaceProtocol = 208; | |
| 320 request.bAlternateSetting = kIOUSBFindInterfaceDontCare; | |
| 321 break; | |
| 322 default: | |
| 323 return false; | |
| 324 } | |
| 325 | |
| 326 // Open the device and configure it. | |
| 327 kr = (*device_)->USBDeviceOpen(device_); | |
| 328 if (kr != KERN_SUCCESS) | |
| 329 return false; | |
| 330 device_is_open_ = true; | |
| 331 | |
| 332 // Xbox controllers have one configuration option which has configuration | |
| 333 // value 1. Try to set it and fail if it couldn't be configured. | |
| 334 IOUSBConfigurationDescriptorPtr config_desc; | |
| 335 kr = (*device_)->GetConfigurationDescriptorPtr(device_, 0, &config_desc); | |
| 336 if (kr != KERN_SUCCESS) | |
| 337 return false; | |
| 338 kr = (*device_)->SetConfiguration(device_, config_desc->bConfigurationValue); | |
| 339 if (kr != KERN_SUCCESS) | |
| 340 return false; | |
| 341 | |
| 342 // The device has 4 interfaces. They are as follows: | |
| 343 // Protocol 1: | |
| 344 // - Endpoint 1 (in) : Controller events, including button presses. | |
| 345 // - Endpoint 2 (out): Rumble pack and LED control | |
| 346 // Protocol 2 has a single endpoint to read from a connected ChatPad device. | |
| 347 // Protocol 3 is used by a connected headset device. | |
| 348 // The device also has an interface on subclass 253, protocol 10 with no | |
| 349 // endpoints. It is unused. | |
| 350 // | |
| 351 // We don't currently support the ChatPad or headset, so protocol 1 is the | |
| 352 // only protocol we care about. | |
| 353 // | |
| 354 // For more detail, see | |
| 355 // https://github.com/Grumbel/xboxdrv/blob/master/PROTOCOL | |
| 356 io_iterator_t iter; | |
| 357 kr = (*device_)->CreateInterfaceIterator(device_, &request, &iter); | |
| 358 if (kr != KERN_SUCCESS) | |
| 359 return false; | |
| 360 base::mac::ScopedIOObject<io_iterator_t> iter_ref(iter); | |
| 361 | |
| 362 // There should be exactly one USB interface which matches the requested | |
| 363 // settings. | |
| 364 io_service_t usb_interface = IOIteratorNext(iter); | |
| 365 if (!usb_interface) | |
| 366 return false; | |
| 367 | |
| 368 // We need to make an InterfaceInterface to communicate with the device | |
| 369 // endpoint. This is the same process as earlier: first make a | |
| 370 // PluginInterface from the io_service then make the InterfaceInterface from | |
| 371 // that. | |
| 372 IOCFPlugInInterface **plugin_interface; | |
| 373 kr = IOCreatePlugInInterfaceForService(usb_interface, | |
| 374 kIOUSBInterfaceUserClientTypeID, | |
| 375 kIOCFPlugInInterfaceID, | |
| 376 &plugin_interface, | |
| 377 &score); | |
| 378 if (kr != KERN_SUCCESS || !plugin_interface) | |
| 379 return false; | |
| 380 base::mac::ScopedIOPluginInterface<IOCFPlugInInterface> interface_ref( | |
| 381 plugin_interface); | |
| 382 | |
| 383 // Release the USB interface, and any subsequent interfaces returned by the | |
| 384 // iterator. (There shouldn't be any, but in case a future device does | |
| 385 // contain more interfaces, this will serve to avoid memory leaks.) | |
| 386 do { | |
| 387 IOObjectRelease(usb_interface); | |
| 388 } while ((usb_interface = IOIteratorNext(iter))); | |
| 389 | |
| 390 // Actually create the interface. | |
| 391 res = (*plugin_interface)->QueryInterface( | |
| 392 plugin_interface, | |
| 393 CFUUIDGetUUIDBytes(kIOUSBInterfaceInterfaceID300), | |
| 394 (LPVOID *)&interface_); | |
| 395 | |
| 396 if (!SUCCEEDED(res) || !interface_) | |
| 397 return false; | |
| 398 | |
| 399 // Actually open the interface. | |
| 400 kr = (*interface_)->USBInterfaceOpen(interface_); | |
| 401 if (kr != KERN_SUCCESS) | |
| 402 return false; | |
| 403 interface_is_open_ = true; | |
| 404 | |
| 405 CFRunLoopSourceRef source_ref; | |
| 406 kr = (*interface_)->CreateInterfaceAsyncEventSource(interface_, &source_ref); | |
| 407 if (kr != KERN_SUCCESS || !source_ref) | |
| 408 return false; | |
| 409 source_.reset(source_ref); | |
| 410 CFRunLoopAddSource(CFRunLoopGetCurrent(), source_, kCFRunLoopDefaultMode); | |
| 411 | |
| 412 // The interface should have two pipes. Pipe 1 with direction kUSBIn and pipe | |
| 413 // 2 with direction kUSBOut. Both pipes should have type kUSBInterrupt. | |
| 414 uint8_t num_endpoints; | |
| 415 kr = (*interface_)->GetNumEndpoints(interface_, &num_endpoints); | |
| 416 if (kr != KERN_SUCCESS || num_endpoints < 2) | |
| 417 return false; | |
| 418 | |
| 419 for (int i = 1; i <= 2; i++) { | |
| 420 uint8_t direction; | |
| 421 uint8_t number; | |
| 422 uint8_t transfer_type; | |
| 423 uint16_t max_packet_size; | |
| 424 uint8_t interval; | |
| 425 | |
| 426 kr = (*interface_)->GetPipeProperties(interface_, | |
| 427 i, | |
| 428 &direction, | |
| 429 &number, | |
| 430 &transfer_type, | |
| 431 &max_packet_size, | |
| 432 &interval); | |
| 433 if (kr != KERN_SUCCESS || transfer_type != kUSBInterrupt) { | |
| 434 return false; | |
| 435 } | |
| 436 if (i == read_endpoint_) { | |
| 437 if (direction != kUSBIn) | |
| 438 return false; | |
| 439 read_buffer_.reset(new uint8_t[max_packet_size]); | |
| 440 read_buffer_size_ = max_packet_size; | |
| 441 QueueRead(); | |
| 442 } else if (i == control_endpoint_) { | |
| 443 if (direction != kUSBOut) | |
| 444 return false; | |
| 445 if (controller_type_ == XBOX_ONE_CONTROLLER) | |
| 446 WriteXboxOneInit(); | |
| 447 } | |
| 448 } | |
| 449 | |
| 450 // The location ID is unique per controller, and can be used to track | |
| 451 // controllers through reconnections (though if a controller is detached from | |
| 452 // one USB hub and attached to another, the location ID will change). | |
| 453 kr = (*device_)->GetLocationID(device_, &location_id_); | |
| 454 if (kr != KERN_SUCCESS) | |
| 455 return false; | |
| 456 | |
| 457 return true; | |
| 458 } | |
| 459 | |
| 460 void XboxController::SetLEDPattern(LEDPattern pattern) { | |
| 461 led_pattern_ = pattern; | |
| 462 const UInt8 length = 3; | |
| 463 | |
| 464 // This buffer will be released in WriteComplete when WritePipeAsync | |
| 465 // finishes. | |
| 466 UInt8* buffer = new UInt8[length]; | |
| 467 buffer[0] = static_cast<UInt8>(CONTROL_MESSAGE_SET_LED); | |
| 468 buffer[1] = length; | |
| 469 buffer[2] = static_cast<UInt8>(pattern); | |
| 470 kern_return_t kr = (*interface_)->WritePipeAsync(interface_, | |
| 471 control_endpoint_, | |
| 472 buffer, | |
| 473 (UInt32)length, | |
| 474 WriteComplete, | |
| 475 buffer); | |
| 476 if (kr != KERN_SUCCESS) { | |
| 477 delete[] buffer; | |
| 478 IOError(); | |
| 479 return; | |
| 480 } | |
| 481 } | |
| 482 | |
| 483 int XboxController::GetVendorId() const { | |
| 484 return kVendorMicrosoft; | |
| 485 } | |
| 486 | |
| 487 int XboxController::GetProductId() const { | |
| 488 if (controller_type_ == XBOX_360_CONTROLLER) | |
| 489 return kProductXbox360Controller; | |
| 490 else | |
| 491 return kProductXboxOneController; | |
| 492 } | |
| 493 | |
| 494 XboxController::ControllerType XboxController::GetControllerType() const { | |
| 495 return controller_type_; | |
| 496 } | |
| 497 | |
| 498 void XboxController::WriteComplete(void* context, IOReturn result, void* arg0) { | |
| 499 UInt8* buffer = static_cast<UInt8*>(context); | |
| 500 delete[] buffer; | |
| 501 | |
| 502 // Ignoring any errors sending data, because they will usually only occur | |
| 503 // when the device is disconnected, in which case it really doesn't matter if | |
| 504 // the data got to the controller or not. | |
| 505 if (result != kIOReturnSuccess) | |
| 506 return; | |
| 507 } | |
| 508 | |
| 509 void XboxController::GotData(void* context, IOReturn result, void* arg0) { | |
| 510 size_t bytes_read = reinterpret_cast<size_t>(arg0); | |
| 511 XboxController* controller = static_cast<XboxController*>(context); | |
| 512 | |
| 513 if (result != kIOReturnSuccess) { | |
| 514 // This will happen if the device was disconnected. The gamepad has | |
| 515 // probably been destroyed by a meteorite. | |
| 516 controller->IOError(); | |
| 517 return; | |
| 518 } | |
| 519 | |
| 520 if (controller->GetControllerType() == XBOX_360_CONTROLLER) | |
| 521 controller->ProcessXbox360Packet(bytes_read); | |
| 522 else | |
| 523 controller->ProcessXboxOnePacket(bytes_read); | |
| 524 | |
| 525 // Queue up another read. | |
| 526 controller->QueueRead(); | |
| 527 } | |
| 528 | |
| 529 void XboxController::ProcessXbox360Packet(size_t length) { | |
| 530 if (length < 2) | |
| 531 return; | |
| 532 DCHECK(length <= read_buffer_size_); | |
| 533 if (length > read_buffer_size_) { | |
| 534 IOError(); | |
| 535 return; | |
| 536 } | |
| 537 uint8_t* buffer = read_buffer_.get(); | |
| 538 | |
| 539 if (buffer[1] != length) | |
| 540 // Length in packet doesn't match length reported by USB. | |
| 541 return; | |
| 542 | |
| 543 uint8_t type = buffer[0]; | |
| 544 buffer += 2; | |
| 545 length -= 2; | |
| 546 switch (type) { | |
| 547 case STATUS_MESSAGE_BUTTONS: { | |
| 548 if (length != sizeof(Xbox360ButtonData)) | |
| 549 return; | |
| 550 Xbox360ButtonData* data = reinterpret_cast<Xbox360ButtonData*>(buffer); | |
| 551 Data normalized_data; | |
| 552 NormalizeXbox360ButtonData(*data, &normalized_data); | |
| 553 delegate_->XboxControllerGotData(this, normalized_data); | |
| 554 break; | |
| 555 } | |
| 556 case STATUS_MESSAGE_LED: | |
| 557 if (length != 3) | |
| 558 return; | |
| 559 // The controller sends one of these messages every time the LED pattern | |
| 560 // is set, as well as once when it is plugged in. | |
| 561 if (led_pattern_ == LED_NUM_PATTERNS && buffer[0] < LED_NUM_PATTERNS) | |
| 562 led_pattern_ = static_cast<LEDPattern>(buffer[0]); | |
| 563 break; | |
| 564 default: | |
| 565 // Unknown packet: ignore! | |
| 566 break; | |
| 567 } | |
| 568 } | |
| 569 | |
| 570 void XboxController::ProcessXboxOnePacket(size_t length) { | |
| 571 if (length < 2) | |
| 572 return; | |
| 573 DCHECK(length <= read_buffer_size_); | |
| 574 if (length > read_buffer_size_) { | |
| 575 IOError(); | |
| 576 return; | |
| 577 } | |
| 578 uint8_t* buffer = read_buffer_.get(); | |
| 579 | |
| 580 uint8_t type = buffer[0]; | |
| 581 buffer += 4; | |
| 582 length -= 4; | |
| 583 switch (type) { | |
| 584 case XBOX_ONE_STATUS_MESSAGE_BUTTONS: { | |
| 585 if (length != sizeof(XboxOneButtonData)) | |
| 586 return; | |
| 587 XboxOneButtonData* data = reinterpret_cast<XboxOneButtonData*>(buffer); | |
| 588 Data normalized_data; | |
| 589 NormalizeXboxOneButtonData(*data, &normalized_data); | |
| 590 delegate_->XboxControllerGotData(this, normalized_data); | |
| 591 break; | |
| 592 } | |
| 593 default: | |
| 594 // Unknown packet: ignore! | |
| 595 break; | |
| 596 } | |
| 597 } | |
| 598 | |
| 599 void XboxController::QueueRead() { | |
| 600 kern_return_t kr = (*interface_)->ReadPipeAsync(interface_, | |
| 601 read_endpoint_, | |
| 602 read_buffer_.get(), | |
| 603 read_buffer_size_, | |
| 604 GotData, | |
| 605 this); | |
| 606 if (kr != KERN_SUCCESS) | |
| 607 IOError(); | |
| 608 } | |
| 609 | |
| 610 void XboxController::IOError() { | |
| 611 delegate_->XboxControllerError(this); | |
| 612 } | |
| 613 | |
| 614 void XboxController::WriteXboxOneInit() { | |
| 615 const UInt8 length = 2; | |
| 616 | |
| 617 // This buffer will be released in WriteComplete when WritePipeAsync | |
| 618 // finishes. | |
| 619 UInt8* buffer = new UInt8[length]; | |
| 620 buffer[0] = 0x05; | |
| 621 buffer[1] = 0x20; | |
| 622 kern_return_t kr = (*interface_)->WritePipeAsync(interface_, | |
| 623 control_endpoint_, | |
| 624 buffer, | |
| 625 (UInt32)length, | |
| 626 WriteComplete, | |
| 627 buffer); | |
| 628 if (kr != KERN_SUCCESS) { | |
| 629 delete[] buffer; | |
| 630 IOError(); | |
| 631 return; | |
| 632 } | |
| 633 } | |
| 634 | |
| 635 //----------------------------------------------------------------------------- | |
| 636 | |
| 637 XboxDataFetcher::XboxDataFetcher() | |
| 638 : listening_(false), | |
| 639 source_(NULL), | |
| 640 port_(NULL) { | |
| 641 } | |
| 642 | |
| 643 XboxDataFetcher::~XboxDataFetcher() { | |
| 644 while (!controllers_.empty()) { | |
| 645 RemoveController(*controllers_.begin()); | |
| 646 } | |
| 647 UnregisterFromNotifications(); | |
| 648 } | |
| 649 | |
| 650 void XboxDataFetcher::GetGamepadData(bool devices_changed_hint) { | |
| 651 // This just loops through all the connected pads and "pings" them to indicate | |
| 652 // that they're still active. | |
| 653 for (const auto& controller : controllers_) { | |
| 654 provider()->GetPadState(GAMEPAD_SOURCE_MAC_XBOX, controller->location_id()); | |
| 655 } | |
| 656 } | |
| 657 | |
| 658 void XboxDataFetcher::OnAddedToProvider() { | |
| 659 RegisterForNotifications(); | |
| 660 } | |
| 661 | |
| 662 void XboxDataFetcher::DeviceAdded(void* context, io_iterator_t iterator) { | |
| 663 DCHECK(context); | |
| 664 XboxDataFetcher* fetcher = static_cast<XboxDataFetcher*>(context); | |
| 665 io_service_t ref; | |
| 666 while ((ref = IOIteratorNext(iterator))) { | |
| 667 base::mac::ScopedIOObject<io_service_t> scoped_ref(ref); | |
| 668 XboxController* controller = new XboxController(fetcher); | |
| 669 if (controller->OpenDevice(ref)) { | |
| 670 fetcher->AddController(controller); | |
| 671 } else { | |
| 672 delete controller; | |
| 673 } | |
| 674 } | |
| 675 } | |
| 676 | |
| 677 void XboxDataFetcher::DeviceRemoved(void* context, io_iterator_t iterator) { | |
| 678 DCHECK(context); | |
| 679 XboxDataFetcher* fetcher = static_cast<XboxDataFetcher*>(context); | |
| 680 io_service_t ref; | |
| 681 while ((ref = IOIteratorNext(iterator))) { | |
| 682 base::mac::ScopedIOObject<io_service_t> scoped_ref(ref); | |
| 683 base::ScopedCFTypeRef<CFNumberRef> number( | |
| 684 base::mac::CFCastStrict<CFNumberRef>( | |
| 685 IORegistryEntryCreateCFProperty(ref, | |
| 686 CFSTR(kUSBDevicePropertyLocationID), | |
| 687 kCFAllocatorDefault, | |
| 688 kNilOptions))); | |
| 689 UInt32 location_id = 0; | |
| 690 CFNumberGetValue(number, kCFNumberSInt32Type, &location_id); | |
| 691 fetcher->RemoveControllerByLocationID(location_id); | |
| 692 } | |
| 693 } | |
| 694 | |
| 695 bool XboxDataFetcher::RegisterForNotifications() { | |
| 696 if (listening_) | |
| 697 return true; | |
| 698 port_ = IONotificationPortCreate(kIOMasterPortDefault); | |
| 699 if (!port_) | |
| 700 return false; | |
| 701 source_ = IONotificationPortGetRunLoopSource(port_); | |
| 702 if (!source_) | |
| 703 return false; | |
| 704 CFRunLoopAddSource(CFRunLoopGetCurrent(), source_, kCFRunLoopDefaultMode); | |
| 705 | |
| 706 listening_ = true; | |
| 707 | |
| 708 if (!RegisterForDeviceNotifications( | |
| 709 kVendorMicrosoft, kProductXboxOneController, | |
| 710 &xbox_one_device_added_iter_, | |
| 711 &xbox_one_device_removed_iter_)) | |
| 712 return false; | |
| 713 | |
| 714 if (!RegisterForDeviceNotifications( | |
| 715 kVendorMicrosoft, kProductXbox360Controller, | |
| 716 &xbox_360_device_added_iter_, | |
| 717 &xbox_360_device_removed_iter_)) | |
| 718 return false; | |
| 719 | |
| 720 return true; | |
| 721 } | |
| 722 | |
| 723 bool XboxDataFetcher::RegisterForDeviceNotifications( | |
| 724 int vendor_id, | |
| 725 int product_id, | |
| 726 base::mac::ScopedIOObject<io_iterator_t>* added_iter, | |
| 727 base::mac::ScopedIOObject<io_iterator_t>* removed_iter) { | |
| 728 base::ScopedCFTypeRef<CFNumberRef> vendor_cf(CFNumberCreate( | |
| 729 kCFAllocatorDefault, kCFNumberSInt32Type, &vendor_id)); | |
| 730 base::ScopedCFTypeRef<CFNumberRef> product_cf(CFNumberCreate( | |
| 731 kCFAllocatorDefault, kCFNumberSInt32Type, &product_id)); | |
| 732 base::ScopedCFTypeRef<CFMutableDictionaryRef> matching_dict( | |
| 733 IOServiceMatching(kIOUSBDeviceClassName)); | |
| 734 if (!matching_dict) | |
| 735 return false; | |
| 736 CFDictionarySetValue(matching_dict, CFSTR(kUSBVendorID), vendor_cf); | |
| 737 CFDictionarySetValue(matching_dict, CFSTR(kUSBProductID), product_cf); | |
| 738 | |
| 739 // IOServiceAddMatchingNotification() releases the dictionary when it's done. | |
| 740 // Retain it before each call to IOServiceAddMatchingNotification to keep | |
| 741 // things balanced. | |
| 742 CFRetain(matching_dict); | |
| 743 io_iterator_t device_added_iter; | |
| 744 IOReturn ret; | |
| 745 ret = IOServiceAddMatchingNotification(port_, | |
| 746 kIOFirstMatchNotification, | |
| 747 matching_dict, | |
| 748 DeviceAdded, | |
| 749 this, | |
| 750 &device_added_iter); | |
| 751 added_iter->reset(device_added_iter); | |
| 752 if (ret != kIOReturnSuccess) { | |
| 753 LOG(ERROR) << "Error listening for Xbox controller add events: " << ret; | |
| 754 return false; | |
| 755 } | |
| 756 DeviceAdded(this, added_iter->get()); | |
| 757 | |
| 758 CFRetain(matching_dict); | |
| 759 io_iterator_t device_removed_iter; | |
| 760 ret = IOServiceAddMatchingNotification(port_, | |
| 761 kIOTerminatedNotification, | |
| 762 matching_dict, | |
| 763 DeviceRemoved, | |
| 764 this, | |
| 765 &device_removed_iter); | |
| 766 removed_iter->reset(device_removed_iter); | |
| 767 if (ret != kIOReturnSuccess) { | |
| 768 LOG(ERROR) << "Error listening for Xbox controller remove events: " << ret; | |
| 769 return false; | |
| 770 } | |
| 771 DeviceRemoved(this, removed_iter->get()); | |
| 772 return true; | |
| 773 } | |
| 774 | |
| 775 void XboxDataFetcher::UnregisterFromNotifications() { | |
| 776 if (!listening_) | |
| 777 return; | |
| 778 listening_ = false; | |
| 779 if (source_) | |
| 780 CFRunLoopSourceInvalidate(source_); | |
| 781 if (port_) | |
| 782 IONotificationPortDestroy(port_); | |
| 783 port_ = NULL; | |
| 784 } | |
| 785 | |
| 786 XboxController* XboxDataFetcher::ControllerForLocation(UInt32 location_id) { | |
| 787 for (std::set<XboxController*>::iterator i = controllers_.begin(); | |
| 788 i != controllers_.end(); | |
| 789 ++i) { | |
| 790 if ((*i)->location_id() == location_id) | |
| 791 return *i; | |
| 792 } | |
| 793 return NULL; | |
| 794 } | |
| 795 | |
| 796 void XboxDataFetcher::AddController(XboxController* controller) { | |
| 797 DCHECK(!ControllerForLocation(controller->location_id())) | |
| 798 << "Controller with location ID " << controller->location_id() | |
| 799 << " already exists in the set of controllers."; | |
| 800 | |
| 801 PadState* state = provider()->GetPadState(GAMEPAD_SOURCE_MAC_XBOX, | |
| 802 controller->location_id()); | |
| 803 if (!state) { | |
| 804 delete controller; | |
| 805 return; // No available slot for this device | |
| 806 } | |
| 807 | |
| 808 controllers_.insert(controller); | |
| 809 | |
| 810 controller->SetLEDPattern( | |
| 811 (XboxController::LEDPattern)(XboxController::LED_FLASH_TOP_LEFT + | |
| 812 controller->location_id())); | |
| 813 | |
| 814 NSString* ident = [NSString stringWithFormat: | |
| 815 @"%@ (STANDARD GAMEPAD Vendor: %04x Product: %04x)", | |
| 816 controller->GetControllerType() == XboxController::XBOX_360_CONTROLLER | |
| 817 ? @"Xbox 360 Controller" | |
| 818 : @"Xbox One Controller", | |
| 819 controller->GetProductId(), controller->GetVendorId()]; | |
| 820 CopyNSStringAsUTF16LittleEndian( | |
| 821 ident, | |
| 822 state->data.id, | |
| 823 sizeof(state->data.id)); | |
| 824 | |
| 825 CopyNSStringAsUTF16LittleEndian( | |
| 826 @"standard", | |
| 827 state->data.mapping, | |
| 828 sizeof(state->data.mapping)); | |
| 829 | |
| 830 state->data.connected = true; | |
| 831 state->data.axesLength = 4; | |
| 832 state->data.buttonsLength = 17; | |
| 833 state->data.timestamp = 0; | |
| 834 state->mapper = 0; | |
| 835 state->axis_mask = 0; | |
| 836 state->button_mask = 0; | |
| 837 } | |
| 838 | |
| 839 void XboxDataFetcher::RemoveController(XboxController* controller) { | |
| 840 controllers_.erase(controller); | |
| 841 delete controller; | |
| 842 } | |
| 843 | |
| 844 void XboxDataFetcher::RemoveControllerByLocationID(uint32_t location_id) { | |
| 845 XboxController* controller = NULL; | |
| 846 for (std::set<XboxController*>::iterator i = controllers_.begin(); | |
| 847 i != controllers_.end(); | |
| 848 ++i) { | |
| 849 if ((*i)->location_id() == location_id) { | |
| 850 controller = *i; | |
| 851 break; | |
| 852 } | |
| 853 } | |
| 854 if (controller) | |
| 855 RemoveController(controller); | |
| 856 } | |
| 857 | |
| 858 void XboxDataFetcher::XboxControllerGotData(XboxController* controller, | |
| 859 const XboxController::Data& data) { | |
| 860 PadState* state = provider()->GetPadState(GAMEPAD_SOURCE_MAC_XBOX, | |
| 861 controller->location_id()); | |
| 862 if (!state) | |
| 863 return; // No available slot for this device | |
| 864 | |
| 865 WebGamepad& pad = state->data; | |
| 866 | |
| 867 for (size_t i = 0; i < 6; i++) { | |
| 868 pad.buttons[i].pressed = data.buttons[i]; | |
| 869 pad.buttons[i].value = data.buttons[i] ? 1.0f : 0.0f; | |
| 870 } | |
| 871 pad.buttons[6].pressed = data.triggers[0] > kDefaultButtonPressedThreshold; | |
| 872 pad.buttons[6].value = data.triggers[0]; | |
| 873 pad.buttons[7].pressed = data.triggers[1] > kDefaultButtonPressedThreshold; | |
| 874 pad.buttons[7].value = data.triggers[1]; | |
| 875 for (size_t i = 8; i < 17; i++) { | |
| 876 pad.buttons[i].pressed = data.buttons[i - 2]; | |
| 877 pad.buttons[i].value = data.buttons[i - 2] ? 1.0f : 0.0f; | |
| 878 } | |
| 879 for (size_t i = 0; i < arraysize(data.axes); i++) { | |
| 880 pad.axes[i] = data.axes[i]; | |
| 881 } | |
| 882 | |
| 883 pad.timestamp = base::TimeTicks::Now().ToInternalValue(); | |
| 884 } | |
| 885 | |
| 886 void XboxDataFetcher::XboxControllerError(XboxController* controller) { | |
| 887 RemoveController(controller); | |
| 888 } | |
| 889 | |
| 890 } // namespace content | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1627643002:
Revert of Refactoring gamepad polling to support dynamically added sources (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master