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| 1 // Copyright 2015 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 "config.h" |
| 6 #include "modules/webusb/USBEndpoint.h" |
| 7 |
| 8 #include "bindings/core/v8/ExceptionState.h" |
| 9 #include "modules/webusb/USBAlternateInterface.h" |
| 10 #include "public/platform/modules/webusb/WebUSBDevice.h" |
| 11 |
| 12 namespace blink { |
| 13 |
| 14 namespace { |
| 15 |
| 16 String convertDirection(const WebUSBDevice::TransferDirection& direction) |
| 17 { |
| 18 switch (direction) { |
| 19 case WebUSBDevice::TransferDirectionIn: |
| 20 return "in"; |
| 21 case WebUSBDevice::TransferDirectionOut: |
| 22 return "out"; |
| 23 default: |
| 24 ASSERT_NOT_REACHED(); |
| 25 return ""; |
| 26 } |
| 27 } |
| 28 |
| 29 String convertType(const WebUSBDeviceInfo::Endpoint::Type& type) |
| 30 { |
| 31 switch (type) { |
| 32 case WebUSBDeviceInfo::Endpoint::TypeBulk: |
| 33 return "bulk"; |
| 34 case WebUSBDeviceInfo::Endpoint::TypeInterrupt: |
| 35 return "interrupt"; |
| 36 case WebUSBDeviceInfo::Endpoint::TypeIsochronous: |
| 37 return "isochronous"; |
| 38 default: |
| 39 ASSERT_NOT_REACHED(); |
| 40 return ""; |
| 41 } |
| 42 } |
| 43 |
| 44 } // namespace |
| 45 |
| 46 // static |
| 47 USBEndpoint* USBEndpoint::create(const USBAlternateInterface* alternate, size_t
endpointIndex) |
| 48 { |
| 49 return new USBEndpoint(alternate, endpointIndex); |
| 50 } |
| 51 |
| 52 // static |
| 53 USBEndpoint* USBEndpoint::create(const USBAlternateInterface* alternate, size_t
endpointIndex, ExceptionState& exceptionState) |
| 54 { |
| 55 if (endpointIndex < alternate->info().endpoints.size()) |
| 56 return new USBEndpoint(alternate, endpointIndex); |
| 57 exceptionState.throwRangeError("Invalid endpoint index."); |
| 58 return nullptr; |
| 59 } |
| 60 |
| 61 USBEndpoint::USBEndpoint(const USBAlternateInterface* alternate, size_t endpoint
Index) |
| 62 : m_alternate(alternate) |
| 63 , m_endpointIndex(endpointIndex) |
| 64 { |
| 65 } |
| 66 |
| 67 const WebUSBDeviceInfo::Endpoint& USBEndpoint::info() const |
| 68 { |
| 69 const WebUSBDeviceInfo::AlternateInterface& alternateInfo = m_alternate->inf
o(); |
| 70 ASSERT(m_endpointIndex < alternateInfo.endpoints.size()); |
| 71 return alternateInfo.endpoints[m_endpointIndex]; |
| 72 } |
| 73 |
| 74 uint8_t USBEndpoint::endpointNumber() const |
| 75 { |
| 76 return info().endpointNumber; |
| 77 } |
| 78 |
| 79 String USBEndpoint::direction() const |
| 80 { |
| 81 return convertDirection(info().direction); |
| 82 } |
| 83 |
| 84 String USBEndpoint::type() const |
| 85 { |
| 86 return convertType(info().type); |
| 87 } |
| 88 |
| 89 unsigned USBEndpoint::packetSize() const |
| 90 { |
| 91 return info().packetSize; |
| 92 } |
| 93 |
| 94 DEFINE_TRACE(USBEndpoint) |
| 95 { |
| 96 visitor->trace(m_alternate); |
| 97 } |
| 98 |
| 99 } // namespace blink |
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