1 /* 2 * Copyright (C) 2019 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_V2_0_HDMICEC_H 18 #define ANDROID_HARDWARE_TV_CEC_V2_0_HDMICEC_H 19 20 #include <algorithm> 21 22 #include <android/hardware/tv/cec/2.0/IHdmiCec.h> 23 #include <hardware/hardware.h> 24 #include <hardware/hdmi_cec.h> 25 #include <hidl/Status.h> 26 27 #include <hidl/MQDescriptor.h> 28 namespace android { 29 namespace hardware { 30 namespace tv { 31 namespace cec { 32 namespace V2_0 { 33 namespace implementation { 34 35 using ::android::sp; 36 using ::android::hardware::hidl_string; 37 using ::android::hardware::hidl_vec; 38 using ::android::hardware::Return; 39 using ::android::hardware::Void; 40 using ::android::hardware::tv::cec::V2_0::CecLogicalAddress; 41 using ::android::hardware::tv::cec::V2_0::CecMessage; 42 using ::android::hardware::tv::cec::V2_0::CecPhysicalAddress; 43 using ::android::hardware::tv::cec::V2_0::HdmiPortId; 44 using ::android::hardware::tv::cec::V2_0::HdmiPortInfo; 45 using ::android::hardware::tv::cec::V2_0::IHdmiCec; 46 using ::android::hardware::tv::cec::V2_0::IHdmiCecCallback; 47 using ::android::hardware::tv::cec::V2_0::MaxLength; 48 using ::android::hardware::tv::cec::V2_0::OptionKey; 49 using ::android::hardware::tv::cec::V2_0::Result; 50 using ::android::hardware::tv::cec::V2_0::SendMessageResult; 51 52 struct HdmiCec : public IHdmiCec, public hidl_death_recipient { 53 HdmiCec(hdmi_cec_device_t* device); 54 // Methods from ::android::hardware::tv::cec::V2_0::IHdmiCec follow. 55 Return<Result> addDeviceType(CecDeviceType deviceType) override; 56 Return<void> clearDeviceTypes() override; 57 Return<void> setAllDeviceTypes(CecAllDeviceTypes allDeviceTypes) override; 58 Return<void> setDeviceFeatures(CecDeviceType deviceType, 59 CecDeviceFeatures /* deviceFeatures */) override; 60 Return<void> setRcProfile(CecDeviceType deviceType, 61 const CecRcProfile& /* rcProfile */) override; 62 Return<void> readDeviceInfo(CecLogicalAddress logicalAddress, 63 CecPhysicalAddress physicalAddress, 64 const readDeviceInfo_cb _hidl_cb) override; 65 Return<SendMessageResult> sendMessage(const CecMessage& message) override; 66 Return<void> setCallback(const sp<IHdmiCecCallback>& callback) override; 67 Return<void> getPortInfo(getPortInfo_cb _hidl_cb) override; 68 Return<void> setOption(OptionKey key, bool value) override; 69 Return<void> setLanguage(const hidl_string& language) override; 70 Return<void> enableAudioReturnChannel(HdmiPortId portId, bool enable) override; 71 Return<bool> isConnected(HdmiPortId portId) override; 72 eventCallbackHdmiCec73 static void eventCallback(const hdmi_event_t* event, void* /* arg */) { 74 if (mCallback != nullptr && event != nullptr) { 75 if (event->type == HDMI_EVENT_CEC_MESSAGE) { 76 size_t length = 77 std::min(event->cec.length, static_cast<size_t>(MaxLength::MESSAGE_BODY)); 78 CecMessage cecMessage{ 79 .initiator = static_cast<CecLogicalAddress>(event->cec.initiator), 80 .destination = static_cast<CecLogicalAddress>(event->cec.destination), 81 }; 82 cecMessage.body.resize(length); 83 for (size_t i = 0; i < length; ++i) { 84 cecMessage.body[i] = static_cast<uint8_t>(event->cec.body[i]); 85 } 86 mCallback->onCecMessage(cecMessage); 87 } else if (event->type == HDMI_EVENT_HOT_PLUG) { 88 HotplugEvent hotplugEvent{ 89 .connected = event->hotplug.connected > 0, 90 .portId = static_cast<HdmiPortId>(event->hotplug.port_id)}; 91 mCallback->onHotplugEvent(hotplugEvent); 92 } 93 } 94 } 95 serviceDiedHdmiCec96 virtual void serviceDied(uint64_t /*cookie*/, 97 const wp<::android::hidl::base::V1_0::IBase>& /*who*/) { 98 setCallback(nullptr); 99 } 100 101 private: 102 static sp<IHdmiCecCallback> mCallback; 103 const hdmi_cec_device_t* mDevice; 104 }; 105 106 extern "C" IHdmiCec* HIDL_FETCH_IHdmiCec(const char* name); 107 108 } // namespace implementation 109 } // namespace V2_0 110 } // namespace cec 111 } // namespace tv 112 } // namespace hardware 113 } // namespace android 114 115 #endif // ANDROID_HARDWARE_TV_CEC_V2_0_HDMICEC_H 116