1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_HARDWARE_TV_CEC_V1_0_HDMICEC_H 18 #define ANDROID_HARDWARE_TV_CEC_V1_0_HDMICEC_H 19 20 #include <algorithm> 21 22 #include <android/hardware/tv/cec/1.0/IHdmiCec.h> 23 #include <hidl/Status.h> 24 #include <hardware/hardware.h> 25 #include <hardware/hdmi_cec.h> 26 27 #include <hidl/MQDescriptor.h> 28 namespace android { 29 namespace hardware { 30 namespace tv { 31 namespace cec { 32 namespace V1_0 { 33 namespace implementation { 34 35 using ::android::hardware::tv::cec::V1_0::CecLogicalAddress; 36 using ::android::hardware::tv::cec::V1_0::CecMessage; 37 using ::android::hardware::tv::cec::V1_0::MaxLength; 38 using ::android::hardware::tv::cec::V1_0::HdmiPortInfo; 39 using ::android::hardware::tv::cec::V1_0::IHdmiCec; 40 using ::android::hardware::tv::cec::V1_0::IHdmiCecCallback; 41 using ::android::hardware::tv::cec::V1_0::OptionKey; 42 using ::android::hardware::tv::cec::V1_0::Result; 43 using ::android::hardware::tv::cec::V1_0::SendMessageResult; 44 using ::android::hardware::Return; 45 using ::android::hardware::Void; 46 using ::android::hardware::hidl_vec; 47 using ::android::hardware::hidl_string; 48 using ::android::sp; 49 50 struct HdmiCec : public IHdmiCec { 51 HdmiCec(hdmi_cec_device_t* device); 52 // Methods from ::android::hardware::tv::cec::V1_0::IHdmiCec follow. 53 Return<Result> addLogicalAddress(CecLogicalAddress addr) override; 54 Return<void> clearLogicalAddress() override; 55 Return<void> getPhysicalAddress(getPhysicalAddress_cb _hidl_cb) override; 56 Return<SendMessageResult> sendMessage(const CecMessage& message) override; 57 Return<void> setCallback(const sp<IHdmiCecCallback>& callback) override; 58 Return<int32_t> getCecVersion() override; 59 Return<uint32_t> getVendorId() override; 60 Return<void> getPortInfo(getPortInfo_cb _hidl_cb) override; 61 Return<void> setOption(OptionKey key, bool value) override; 62 Return<void> setLanguage(const hidl_string& language) override; 63 Return<void> enableAudioReturnChannel(int32_t portId, bool enable) override; 64 Return<bool> isConnected(int32_t portId) override; 65 66 static void eventCallback(const hdmi_event_t* event, void* /* arg */) { 67 if (mCallback != nullptr && event != nullptr) { 68 if (event->type == HDMI_EVENT_CEC_MESSAGE) { 69 size_t length = std::min(event->cec.length, 70 static_cast<size_t>(MaxLength::MESSAGE_BODY)); 71 CecMessage cecMessage { 72 .initiator = static_cast<CecLogicalAddress>(event->cec.initiator), 73 .destination = static_cast<CecLogicalAddress>(event->cec.destination), 74 }; 75 cecMessage.body.resize(length); 76 for (size_t i = 0; i < length; ++i) { 77 cecMessage.body[i] = static_cast<uint8_t>(event->cec.body[i]); 78 } 79 mCallback->onCecMessage(cecMessage); 80 } else if (event->type == HDMI_EVENT_HOT_PLUG) { 81 HotplugEvent hotplugEvent { 82 .connected = event->hotplug.connected > 0, 83 .portId = static_cast<uint32_t>(event->hotplug.port_id) 84 }; 85 mCallback->onHotplugEvent(hotplugEvent); 86 } 87 } 88 } 89 90 private: 91 static sp<IHdmiCecCallback> mCallback; 92 const hdmi_cec_device_t* mDevice; 93 }; 94 95 extern "C" IHdmiCec* HIDL_FETCH_IHdmiCec(const char* name); 96 97 } // namespace implementation 98 } // namespace V1_0 99 } // namespace cec 100 } // namespace tv 101 } // namespace hardware 102 } // namespace android 103 104 #endif // ANDROID_HARDWARE_TV_CEC_V1_0_HDMICEC_H 105
