Add default implementation for tv.cec@1.1
Default implementation based on tv.cec@1.0. Implements the new 1.1
interfaces returning default values and communicating via mocked inputs.
Bug: 169121290
Test: manual; VTS in following changes
Change-Id: I1642e340e9064ab37670f1998421e3190085d98b
diff --git a/tv/cec/1.1/default/HdmiCecMock.cpp b/tv/cec/1.1/default/HdmiCecMock.cpp
new file mode 100644
index 0000000..f65bab9
--- /dev/null
+++ b/tv/cec/1.1/default/HdmiCecMock.cpp
@@ -0,0 +1,371 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "android.hardware.tv.cec@1.1"
+#include <android-base/logging.h>
+#include <utils/Log.h>
+
+#include <hardware/hardware.h>
+#include <hardware/hdmi_cec.h>
+#include "HdmiCecMock.h"
+
+namespace android {
+namespace hardware {
+namespace tv {
+namespace cec {
+namespace V1_1 {
+namespace implementation {
+
+class WrappedCallback : public ::android::hardware::tv::cec::V1_1::IHdmiCecCallback {
+ public:
+ WrappedCallback(sp<::android::hardware::tv::cec::V1_0::IHdmiCecCallback> callback) {
+ mCallback = callback;
+ }
+
+ Return<void> onCecMessage(const ::android::hardware::tv::cec::V1_0::CecMessage& message) {
+ mCallback->onCecMessage(message);
+ return Void();
+ }
+ Return<void> onCecMessage_1_1(const ::android::hardware::tv::cec::V1_1::CecMessage& message) {
+ ::android::hardware::tv::cec::V1_0::CecMessage cecMessage;
+ cecMessage.initiator =
+ ::android::hardware::tv::cec::V1_0::CecLogicalAddress(message.initiator);
+ cecMessage.destination =
+ ::android::hardware::tv::cec::V1_0::CecLogicalAddress(message.destination);
+ cecMessage.body = message.body;
+ mCallback->onCecMessage(cecMessage);
+ return Void();
+ }
+ Return<void> onHotplugEvent(const ::android::hardware::tv::cec::V1_0::HotplugEvent& event) {
+ mCallback->onHotplugEvent(event);
+ return Void();
+ }
+
+ private:
+ sp<::android::hardware::tv::cec::V1_0::IHdmiCecCallback> mCallback;
+};
+
+/*
+ * (*set_option)() passes flags controlling the way HDMI-CEC service works down
+ * to HAL implementation. Those flags will be used in case the feature needs
+ * update in HAL itself, firmware or microcontroller.
+ */
+void HdmiCecMock::cec_set_option(int flag, int value) {
+ // maintain options and set them accordingly
+ switch (flag) {
+ case HDMI_OPTION_WAKEUP:
+ mOptionWakeUp = value;
+ break;
+ case HDMI_OPTION_ENABLE_CEC:
+ mOptionEnableCec = value;
+ break;
+ case HDMI_OPTION_SYSTEM_CEC_CONTROL:
+ mOptionSystemCecControl = value;
+ break;
+ case HDMI_OPTION_SET_LANG:
+ mOptionLanguage = value;
+ break;
+ }
+}
+
+// Methods from ::android::hardware::tv::cec::V1_0::IHdmiCec follow.
+Return<Result> HdmiCecMock::addLogicalAddress(CecLogicalAddress addr) {
+ return addLogicalAddress_1_1(::android::hardware::tv::cec::V1_1::CecLogicalAddress(addr));
+}
+
+Return<void> HdmiCecMock::clearLogicalAddress() {
+ // remove logical address from the list
+ mLogicalAddresses = {};
+ return Void();
+}
+
+Return<void> HdmiCecMock::getPhysicalAddress(getPhysicalAddress_cb _hidl_cb) {
+ // maintain a physical address and return it
+ // default 0xFFFF, update on hotplug event
+ _hidl_cb(Result::SUCCESS, mPhysicalAddress);
+ return Void();
+}
+
+Return<SendMessageResult> HdmiCecMock::sendMessage(const CecMessage& message) {
+ ::android::hardware::tv::cec::V1_1::CecMessage cecMessage;
+ cecMessage.initiator = ::android::hardware::tv::cec::V1_1::CecLogicalAddress(message.initiator);
+ cecMessage.destination =
+ ::android::hardware::tv::cec::V1_1::CecLogicalAddress(message.destination);
+ cecMessage.body = message.body;
+ return sendMessage_1_1(cecMessage);
+}
+
+Return<void> HdmiCecMock::setCallback(const sp<IHdmiCecCallback>& callback) {
+ return setCallback_1_1(new WrappedCallback(callback));
+}
+
+Return<int32_t> HdmiCecMock::getCecVersion() {
+ // maintain a cec version and return it
+ return mCecVersion;
+}
+
+Return<uint32_t> HdmiCecMock::getVendorId() {
+ return mCecVendorId;
+}
+
+Return<void> HdmiCecMock::getPortInfo(getPortInfo_cb _hidl_cb) {
+ // TODO ready port info from device specific config
+ _hidl_cb(mPortInfo);
+ return Void();
+}
+
+Return<void> HdmiCecMock::setOption(OptionKey key, bool value) {
+ cec_set_option(static_cast<int>(key), value ? 1 : 0);
+ return Void();
+}
+
+Return<void> HdmiCecMock::setLanguage(const hidl_string& language) {
+ if (language.size() != 3) {
+ LOG(ERROR) << "Wrong language code: expected 3 letters, but it was " << language.size()
+ << ".";
+ return Void();
+ }
+ // TODO validate if language is a valid language code
+ const char* languageStr = language.c_str();
+ int convertedLanguage = ((languageStr[0] & 0xFF) << 16) | ((languageStr[1] & 0xFF) << 8) |
+ (languageStr[2] & 0xFF);
+ cec_set_option(HDMI_OPTION_SET_LANG, convertedLanguage);
+ return Void();
+}
+
+Return<void> HdmiCecMock::enableAudioReturnChannel(int32_t portId __unused, bool enable __unused) {
+ // Maintain ARC status
+ return Void();
+}
+
+Return<bool> HdmiCecMock::isConnected(int32_t portId) {
+ // maintain port connection status and update on hotplug event
+ if (portId < mTotalPorts && portId >= 0) {
+ return mPortConnectionStatus[portId];
+ }
+ return false;
+}
+
+// Methods from ::android::hardware::tv::cec::V1_1::IHdmiCec follow.
+Return<Result> HdmiCecMock::addLogicalAddress_1_1(
+ ::android::hardware::tv::cec::V1_1::CecLogicalAddress addr) {
+ // have a list to maintain logical addresses
+ int size = mLogicalAddresses.size();
+ mLogicalAddresses.resize(size + 1);
+ mLogicalAddresses[size + 1] = addr;
+ return Result::SUCCESS;
+}
+
+Return<SendMessageResult> HdmiCecMock::sendMessage_1_1(
+ const ::android::hardware::tv::cec::V1_1::CecMessage& message) {
+ if (message.body.size() == 0) {
+ return SendMessageResult::NACK;
+ }
+ sendMessageToFifo(message);
+ return SendMessageResult::SUCCESS;
+}
+
+Return<void> HdmiCecMock::setCallback_1_1(
+ const sp<::android::hardware::tv::cec::V1_1::IHdmiCecCallback>& callback) {
+ if (mCallback != nullptr) {
+ mCallback = nullptr;
+ }
+
+ if (callback != nullptr) {
+ mCallback = callback;
+ mCallback->linkToDeath(this, 0 /*cookie*/);
+
+ mInputFile = open(CEC_MSG_IN_FIFO, O_RDWR);
+ mOutputFile = open(CEC_MSG_OUT_FIFO, O_RDWR);
+ pthread_create(&mThreadId, NULL, __threadLoop, this);
+ pthread_setname_np(mThreadId, "hdmi_cec_loop");
+ }
+ return Void();
+}
+
+void* HdmiCecMock::__threadLoop(void* user) {
+ HdmiCecMock* const self = static_cast<HdmiCecMock*>(user);
+ self->threadLoop();
+ return 0;
+}
+
+int HdmiCecMock::readMessageFromFifo(unsigned char* buf, int msgCount) {
+ if (msgCount <= 0 || !buf) {
+ return 0;
+ }
+
+ int ret = -1;
+ /* maybe blocked at driver */
+ ret = read(mInputFile, buf, msgCount);
+ if (ret < 0) {
+ ALOGE("[halimp] read :%s failed, ret:%d\n", CEC_MSG_IN_FIFO, ret);
+ return -1;
+ }
+
+ return ret;
+}
+
+int HdmiCecMock::sendMessageToFifo(const ::android::hardware::tv::cec::V1_1::CecMessage& message) {
+ unsigned char msgBuf[CEC_MESSAGE_BODY_MAX_LENGTH];
+ int ret = -1;
+
+ memset(msgBuf, 0, sizeof(msgBuf));
+ msgBuf[0] = ((static_cast<uint8_t>(message.initiator) & 0xf) << 4) |
+ (static_cast<uint8_t>(message.destination) & 0xf);
+
+ size_t length = std::min(static_cast<size_t>(message.body.size()),
+ static_cast<size_t>(MaxLength::MESSAGE_BODY));
+ for (size_t i = 0; i < length; ++i) {
+ msgBuf[i + 1] = static_cast<unsigned char>(message.body[i]);
+ }
+
+ // open the output pipe for writing outgoing cec message
+ mOutputFile = open(CEC_MSG_OUT_FIFO, O_WRONLY);
+ if (mOutputFile < 0) {
+ ALOGD("[halimp] file open failed for writing");
+ return -1;
+ }
+
+ // write message into the output pipe
+ ret = write(mOutputFile, msgBuf, length + 1);
+ close(mOutputFile);
+ if (ret < 0) {
+ ALOGE("[halimp] write :%s failed, ret:%d\n", CEC_MSG_OUT_FIFO, ret);
+ return -1;
+ }
+ return ret;
+}
+
+void HdmiCecMock::printCecMsgBuf(const char* msg_buf, int len) {
+ char buf[64] = {};
+ int i, size = 0;
+ memset(buf, 0, sizeof(buf));
+ for (i = 0; i < len; i++) {
+ size += sprintf(buf + size, " %02x", msg_buf[i]);
+ }
+ ALOGD("[halimp] %s, msg:%s", __FUNCTION__, buf);
+}
+
+void HdmiCecMock::handleHotplugMessage(unsigned char* msgBuf) {
+ HotplugEvent hotplugEvent{.connected = ((msgBuf[3]) & 0xf) > 0,
+ .portId = static_cast<uint32_t>(msgBuf[0] & 0xf)};
+
+ if (hotplugEvent.portId >= mPortInfo.size()) {
+ ALOGD("[halimp] ignore hot plug message, id %x does not exist", hotplugEvent.portId);
+ return;
+ }
+
+ ALOGD("[halimp] hot plug port id %x, is connected %x", (msgBuf[0] & 0xf), (msgBuf[3] & 0xf));
+ if (mPortInfo[hotplugEvent.portId].type == HdmiPortType::OUTPUT) {
+ mPhysicalAddress =
+ ((hotplugEvent.connected == 0) ? 0xffff : ((msgBuf[1] << 8) | (msgBuf[2])));
+ mPortInfo[hotplugEvent.portId].physicalAddress = mPhysicalAddress;
+ ALOGD("[halimp] hot plug physical address %x", mPhysicalAddress);
+ }
+
+ // todo update connection status
+
+ if (mCallback != nullptr) {
+ mCallback->onHotplugEvent(hotplugEvent);
+ }
+}
+
+void HdmiCecMock::handleCecMessage(unsigned char* msgBuf, int megSize) {
+ ::android::hardware::tv::cec::V1_1::CecMessage message;
+ size_t length = std::min(static_cast<size_t>(megSize - 1),
+ static_cast<size_t>(MaxLength::MESSAGE_BODY));
+ message.body.resize(length);
+
+ for (size_t i = 0; i < length; ++i) {
+ message.body[i] = static_cast<uint8_t>(msgBuf[i + 1]);
+ ALOGD("[halimp] msg body %x", message.body[i]);
+ }
+
+ message.initiator = static_cast<::android::hardware::tv::cec::V1_1::CecLogicalAddress>(
+ (msgBuf[0] >> 4) & 0xf);
+ ALOGD("[halimp] msg init %x", message.initiator);
+ message.destination = static_cast<::android::hardware::tv::cec::V1_1::CecLogicalAddress>(
+ (msgBuf[0] >> 0) & 0xf);
+ ALOGD("[halimp] msg dest %x", message.destination);
+
+ // messageValidateAndHandle(&event);
+
+ if (mCallback != nullptr) {
+ mCallback->onCecMessage_1_1(message);
+ }
+}
+
+void HdmiCecMock::threadLoop() {
+ ALOGD("[halimp] threadLoop start.");
+ unsigned char msgBuf[CEC_MESSAGE_BODY_MAX_LENGTH];
+ int r = -1;
+
+ // open the input pipe
+ while (mInputFile < 0) {
+ usleep(1000 * 1000);
+ mInputFile = open(CEC_MSG_IN_FIFO, O_RDONLY);
+ }
+ ALOGD("[halimp] file open ok, fd = %d.", mInputFile);
+
+ while (mCecThreadRun) {
+ if (!mOptionSystemCecControl) {
+ usleep(1000 * 1000);
+ continue;
+ }
+
+ memset(msgBuf, 0, sizeof(msgBuf));
+ // try to get a message from dev.
+ // echo -n -e '\x04\x83' >> /dev/cec
+ r = readMessageFromFifo(msgBuf, CEC_MESSAGE_BODY_MAX_LENGTH);
+ if (r <= 1) {
+ // ignore received ping messages
+ continue;
+ }
+
+ printCecMsgBuf((const char*)msgBuf, r);
+
+ if (((msgBuf[0] >> 4) & 0xf) == 0xf) {
+ // the message is a hotplug event
+ handleHotplugMessage(msgBuf);
+ continue;
+ }
+
+ handleCecMessage(msgBuf, r);
+ }
+
+ ALOGD("[halimp] thread end.");
+ // mCecDevice.mExited = true;
+}
+
+HdmiCecMock::HdmiCecMock() {
+ ALOGE("[halimp] Opening a virtual HAL for testing and virtual machine.");
+ mCallback = nullptr;
+ mPortInfo.resize(mTotalPorts);
+ mPortConnectionStatus.resize(mTotalPorts);
+ mPortInfo[0] = {.type = HdmiPortType::OUTPUT,
+ .portId = static_cast<uint32_t>(1),
+ .cecSupported = true,
+ .arcSupported = false,
+ .physicalAddress = mPhysicalAddress};
+ mPortConnectionStatus[0] = false;
+}
+
+} // namespace implementation
+} // namespace V1_1
+} // namespace cec
+} // namespace tv
+} // namespace hardware
+} // namespace android
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