Add default implementation for tv.cec@1.1 am: b8fe666c7f

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/13519609

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ic2ac64b2b716d82b1d5936be4952ec129ef5d14f

tv/cec/1.1/default/Android.bp

@@ -0,0 +1,23 @@
+cc_binary {
+    name: "android.hardware.tv.cec@1.1-service",
+    defaults: ["hidl_defaults"],
+    vintf_fragments: ["android.hardware.tv.cec@1.1-service.xml"],
+    relative_install_path: "hw",
+    vendor: true,
+    init_rc: ["android.hardware.tv.cec@1.1-service.rc"],
+    srcs: [
+        "serviceMock.cpp",
+        "HdmiCecMock.cpp",
+    ],
+
+    shared_libs: [
+        "liblog",
+        "libcutils",
+        "libbase",
+        "libutils",
+        "libhardware",
+        "libhidlbase",
+        "android.hardware.tv.cec@1.0",
+        "android.hardware.tv.cec@1.1",
+    ],
+}

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

tv/cec/1.1/default/HdmiCecMock.h

@@ -0,0 +1,125 @@
+/*
+ * 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.
+ */
+
+#include <android/hardware/tv/cec/1.1/IHdmiCec.h>
+#include <hidl/Status.h>
+#include <algorithm>
+#include <vector>
+
+using namespace std;
+
+namespace android {
+namespace hardware {
+namespace tv {
+namespace cec {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::sp;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::tv::cec::V1_0::CecLogicalAddress;
+using ::android::hardware::tv::cec::V1_0::CecMessage;
+using ::android::hardware::tv::cec::V1_0::HdmiPortInfo;
+using ::android::hardware::tv::cec::V1_0::HdmiPortType;
+using ::android::hardware::tv::cec::V1_0::HotplugEvent;
+using ::android::hardware::tv::cec::V1_0::IHdmiCecCallback;
+using ::android::hardware::tv::cec::V1_0::MaxLength;
+using ::android::hardware::tv::cec::V1_0::OptionKey;
+using ::android::hardware::tv::cec::V1_0::Result;
+using ::android::hardware::tv::cec::V1_0::SendMessageResult;
+using ::android::hardware::tv::cec::V1_1::IHdmiCec;
+
+#define CEC_MSG_IN_FIFO "/dev/cec_in_pipe"
+#define CEC_MSG_OUT_FIFO "/dev/cec_out_pipe"
+
+struct HdmiCecMock : public IHdmiCec, public hidl_death_recipient {
+    HdmiCecMock();
+    // Methods from ::android::hardware::tv::cec::V1_0::IHdmiCec follow.
+    Return<Result> addLogicalAddress(CecLogicalAddress addr) override;
+    Return<void> clearLogicalAddress() override;
+    Return<void> getPhysicalAddress(getPhysicalAddress_cb _hidl_cb) override;
+    Return<SendMessageResult> sendMessage(const CecMessage& message) override;
+    Return<void> setCallback(
+            const sp<::android::hardware::tv::cec::V1_0::IHdmiCecCallback>& callback) override;
+    Return<int32_t> getCecVersion() override;
+    Return<uint32_t> getVendorId() override;
+    Return<void> getPortInfo(getPortInfo_cb _hidl_cb) override;
+    Return<void> setOption(OptionKey key, bool value) override;
+    Return<void> setLanguage(const hidl_string& language) override;
+    Return<void> enableAudioReturnChannel(int32_t portId, bool enable) override;
+    Return<bool> isConnected(int32_t portId) override;
+
+    // Methods from ::android::hardware::tv::cec::V1_1::IHdmiCec follow.
+    Return<Result> addLogicalAddress_1_1(
+            ::android::hardware::tv::cec::V1_1::CecLogicalAddress addr) override;
+    Return<SendMessageResult> sendMessage_1_1(
+            const ::android::hardware::tv::cec::V1_1::CecMessage& message) override;
+    Return<void> setCallback_1_1(
+            const sp<::android::hardware::tv::cec::V1_1::IHdmiCecCallback>& callback) override;
+
+    virtual void serviceDied(uint64_t /*cookie*/,
+                             const wp<::android::hidl::base::V1_0::IBase>& /*who*/) {
+        setCallback(nullptr);
+    }
+
+    void cec_set_option(int flag, int value);
+    void printCecMsgBuf(const char* msg_buf, int len);
+
+  private:
+    static void* __threadLoop(void* data);
+    void threadLoop();
+    int readMessageFromFifo(unsigned char* buf, int msgCount);
+    int sendMessageToFifo(const ::android::hardware::tv::cec::V1_1::CecMessage& message);
+    void handleHotplugMessage(unsigned char* msgBuf);
+    void handleCecMessage(unsigned char* msgBuf, int length);
+
+  private:
+    sp<::android::hardware::tv::cec::V1_1::IHdmiCecCallback> mCallback;
+
+    // Variables for the virtual cec hal impl
+    uint16_t mPhysicalAddress = 0xFFFF;
+    vector<::android::hardware::tv::cec::V1_1::CecLogicalAddress> mLogicalAddresses;
+    int32_t mCecVersion = 0x06;
+    uint32_t mCecVendorId = 0x01;
+
+    // Port configuration
+    int mTotalPorts = 1;
+    hidl_vec<HdmiPortInfo> mPortInfo;
+    hidl_vec<bool> mPortConnectionStatus;
+
+    // CEC Option value
+    int mOptionWakeUp = 0;
+    int mOptionEnableCec = 0;
+    int mOptionSystemCecControl = 0;
+    int mOptionLanguage = 0;
+
+    // Testing variables
+    // Input file descriptor
+    int mInputFile;
+    // Output file descriptor
+    int mOutputFile;
+    bool mCecThreadRun = true;
+    pthread_t mThreadId = 0;
+};
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cec
+}  // namespace tv
+}  // namespace hardware
+}  // namespace android

tv/cec/1.1/default/android.hardware.tv.cec@1.1-service.rc

@@ -0,0 +1,6 @@
+service vendor.cec-hal-1-1 /vendor/bin/hw/android.hardware.tv.cec@1.1-service
+    interface android.hardware.tv.cec@1.0::IHdmiCec default
+    interface android.hardware.tv.cec@1.1::IHdmiCec default
+    class hal
+    user system
+    group system

tv/cec/1.1/default/android.hardware.tv.cec@1.1-service.xml

@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.tv.cec</name>
+        <transport>hwbinder</transport>
+        <version>1.1</version>
+        <interface>
+            <name>IHdmiCec</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>

tv/cec/1.1/default/serviceMock.cpp

@@ -0,0 +1,40 @@
+/*
+ * 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-service-shim"
+
+#include <android/hardware/tv/cec/1.1/IHdmiCec.h>
+#include <hidl/LegacySupport.h>
+#include "HdmiCecMock.h"
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::hardware::tv::cec::V1_1::IHdmiCec;
+using android::hardware::tv::cec::V1_1::implementation::HdmiCecMock;
+
+int main() {
+    configureRpcThreadpool(8, true /* callerWillJoin */);
+
+    // Setup hwbinder service
+    android::sp<IHdmiCec> service = new HdmiCecMock();
+    android::status_t status;
+    status = service->registerAsService();
+    LOG_ALWAYS_FATAL_IF(status != android::OK, "Error while registering mock cec service: %d",
+                        status);
+
+    joinRpcThreadpool();
+    return 0;
+}