a936a25198
Adding MIDI 2.0 host mode support to Android. MIDI 2.0 peripherals create an alternative setting for Universal Midi Packets (UMP). UMP packets can be passed directly through as the host has full control. Instead of going through the ALSA, UMP packets can be sent directly through a UsbDeviceConnection. This CL also adds public apis to expose whether the pipe supports UMP. This for MidiDeviceInfo in Java and AMidi in c++. Bug: 201003646 Bug: 214447324 Test: Verified that the MIDI 1.0 path still works as before. Test: Tested that MIDI 2.0 packets are passed through the pipe with MIDIScope and MIDIKeyboard Test: atest MidiSoloTest Test: atest CtsMidiTestCases Test: NativeMidiEchoTest Change-Id: Idff8a3b9bdd05857239260fc3e6af7253f8f992f
96 lines
3.2 KiB
C++
96 lines
3.2 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_MEDIA_MIDI_DEVICE_INFO_H
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#define ANDROID_MEDIA_MIDI_DEVICE_INFO_H
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#include <binder/Parcelable.h>
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#include <binder/PersistableBundle.h>
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#include <utils/String16.h>
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#include <utils/Vector.h>
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namespace android {
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namespace media {
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namespace midi {
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class MidiDeviceInfo : public Parcelable {
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public:
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MidiDeviceInfo() = default;
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virtual ~MidiDeviceInfo() = default;
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MidiDeviceInfo(const MidiDeviceInfo& midiDeviceInfo) = default;
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status_t writeToParcel(Parcel* parcel) const override;
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status_t readFromParcel(const Parcel* parcel) override;
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int getType() const { return mType; }
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int getUid() const { return mId; }
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bool isPrivate() const { return mIsPrivate; }
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int getDefaultProtocol() const { return mDefaultProtocol; }
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const Vector<String16>& getInputPortNames() const { return mInputPortNames; }
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const Vector<String16>& getOutputPortNames() const { return mOutputPortNames; }
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String16 getProperty(const char* propertyName);
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// The constants need to be kept in sync with MidiDeviceInfo.java
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enum {
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TYPE_USB = 1,
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TYPE_VIRTUAL = 2,
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TYPE_BLUETOOTH = 3,
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};
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enum {
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PROTOCOL_UMP_USE_MIDI_CI = 0,
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PROTOCOL_UMP_MIDI_1_0_UP_TO_64_BITS = 1,
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PROTOCOL_UMP_MIDI_1_0_UP_TO_64_BITS_AND_JRTS = 2,
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PROTOCOL_UMP_MIDI_1_0_UP_TO_128_BITS = 3,
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PROTOCOL_UMP_MIDI_1_0_UP_TO_128_BITS_AND_JRTS = 4,
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PROTOCOL_UMP_MIDI_2_0 = 17,
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PROTOCOL_UMP_MIDI_2_0_AND_JRTS = 18,
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PROTOCOL_UNKNOWN = -1,
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};
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static const char* const PROPERTY_NAME;
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static const char* const PROPERTY_MANUFACTURER;
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static const char* const PROPERTY_PRODUCT;
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static const char* const PROPERTY_VERSION;
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static const char* const PROPERTY_SERIAL_NUMBER;
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static const char* const PROPERTY_ALSA_CARD;
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static const char* const PROPERTY_ALSA_DEVICE;
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friend bool operator==(const MidiDeviceInfo& lhs, const MidiDeviceInfo& rhs);
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friend bool operator!=(const MidiDeviceInfo& lhs, const MidiDeviceInfo& rhs) {
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return !(lhs == rhs);
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}
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private:
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status_t readStringVector(
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const Parcel* parcel, Vector<String16> *vectorPtr, size_t defaultLength);
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status_t writeStringVector(Parcel* parcel, const Vector<String16>& vector) const;
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int32_t mType;
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int32_t mId;
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Vector<String16> mInputPortNames;
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Vector<String16> mOutputPortNames;
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os::PersistableBundle mProperties;
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bool mIsPrivate;
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int32_t mDefaultProtocol;
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};
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} // namespace midi
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} // namespace media
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} // namespace android
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#endif // ANDROID_MEDIA_MIDI_DEVICE_INFO_H
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