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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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