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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef MEDIA_MIDI_USB_MIDI_JACK_H_ | 5 #ifndef MEDIA_MIDI_USB_MIDI_JACK_H_ |
| 6 #define MEDIA_MIDI_USB_MIDI_JACK_H_ | 6 #define MEDIA_MIDI_USB_MIDI_JACK_H_ |
| 7 | 7 |
| 8 #include <stdint.h> | 8 #include <stdint.h> |
| 9 | 9 |
| 10 #include "media/midi/usb_midi_export.h" | 10 #include "media/midi/usb_midi_export.h" |
| 11 | 11 |
| 12 namespace media { | |
| 13 namespace midi { | 12 namespace midi { |
| 14 | 13 |
| 15 class UsbMidiDevice; | 14 class UsbMidiDevice; |
| 16 | 15 |
| 17 // UsbMidiJack represents an EMBEDDED MIDI jack. | 16 // UsbMidiJack represents an EMBEDDED MIDI jack. |
| 18 struct USB_MIDI_EXPORT UsbMidiJack { | 17 struct USB_MIDI_EXPORT UsbMidiJack { |
| 19 // The direction of the endpoint associated with an EMBEDDED MIDI jack. | 18 // The direction of the endpoint associated with an EMBEDDED MIDI jack. |
| 20 // Note that an IN MIDI jack associated with an OUT endpoint has | 19 // Note that an IN MIDI jack associated with an OUT endpoint has |
| 21 // ***DIRECTION_OUT*** direction. | 20 // ***DIRECTION_OUT*** direction. |
| 22 enum Direction { | 21 enum Direction { |
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| 40 // The address of the endpoint that this jack is associated with. | 39 // The address of the endpoint that this jack is associated with. |
| 41 uint8_t endpoint_address; | 40 uint8_t endpoint_address; |
| 42 | 41 |
| 43 Direction direction() const { | 42 Direction direction() const { |
| 44 return (endpoint_address & 0x80) ? DIRECTION_IN : DIRECTION_OUT; | 43 return (endpoint_address & 0x80) ? DIRECTION_IN : DIRECTION_OUT; |
| 45 } | 44 } |
| 46 uint8_t endpoint_number() const { return (endpoint_address & 0xf); } | 45 uint8_t endpoint_number() const { return (endpoint_address & 0xf); } |
| 47 }; | 46 }; |
| 48 | 47 |
| 49 } // namespace midi | 48 } // namespace midi |
| 50 } // namespace media | |
| 51 | 49 |
| 52 #endif // MEDIA_MIDI_USB_MIDI_JACK_H_ | 50 #endif // MEDIA_MIDI_USB_MIDI_JACK_H_ |
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