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Commit 8fe27e88 authored by Jinsuk Kim's avatar Jinsuk Kim Committed by Android (Google) Code Review
Browse files

Merge "Move logical address allocation logic into native service from HAL" into klp-modular-dev

parents c2e5503d cbafd1b3

services/core/jni/com_android_server_hdmi_HdmiCecService.cpp

+167 −49
Original line number Diff line number Diff line
@@ -67,10 +67,10 @@ public: 


    cec_logical_address_t getLogicalAddress(cec_device_type_t deviceType);

    uint16_t getPhysicalAddress();

    int getDeviceType(cec_logical_address_t addr);

    cec_device_type_t getDeviceType(cec_logical_address_t addr);

    void queueMessage(const MessageEntry& message);

    void queueOutgoingMessage(const cec_message_t& message);

    void sendReportPhysicalAddress();

    void sendReportPhysicalAddress(cec_logical_address_t srcAddr);

    void sendActiveSource(cec_logical_address_t srcAddr);

    void sendFeatureAbort(cec_logical_address_t srcAddr, cec_logical_address_t dstAddr,

            int opcode, int reason);
@@ -93,15 +93,41 @@ private: 
        EVENT_TYPE_STANDBY

    };



    /*

     * logical address pool for each device type.

     */

    static const cec_logical_address_t TV_ADDR_POOL[];

    static const cec_logical_address_t PLAYBACK_ADDR_POOL[];

    static const cec_logical_address_t RECORDER_ADDR_POOL[];

    static const cec_logical_address_t TUNER_ADDR_POOL[];



    static const unsigned int MAX_BUFFER_SIZE = 256;

    static const uint16_t INVALID_PHYSICAL_ADDRESS = 0xFFFF;

    static const int INACTIVE_DEVICE_TYPE = -1;



    static void onReceived(const hdmi_event_t* event, void* arg);

    static void checkAndClearExceptionFromCallback(JNIEnv* env, const char* methodName);



    void updatePhysicalAddress();

    void updateLogicalAddress();



    // Allocate logical address. The CEC standard recommends that we try to use the address

    // we have ever used before, in case this is to allocate an address afte the cable is

    // connected again. If preferredAddr is given a valid one (not CEC_ADDR_UNREGISTERED), then

    // this method checks if the address is available first. If not, it tries other addresses

    // int the address pool available for the given type.

    cec_logical_address_t allocateLogicalAddress(cec_device_type_t type,

            cec_logical_address_t preferredAddr);



    // Send a CEC ping message. Returns true if successful.

    bool sendPing(cec_logical_address_t addr);



    // Return the pool of logical addresses that are used for a given device type.

    // One of the addresses in the pool will be chosen in the allocation logic.

    bool getLogicalAddressPool(cec_device_type_t type, const cec_logical_address_t** addrPool,

            size_t* poolSize);



    // Handles the message retrieved from internal message queue. The message can be

    // for either rx or tx.

    void dispatchMessage(const MessageEntry& message);

    void processIncomingMessage(const cec_message_t& msg);
@@ -159,6 +185,29 @@ private: 
    std::string mOsdName;

};



    const cec_logical_address_t HdmiCecHandler::TV_ADDR_POOL[] = {

        CEC_ADDR_TV,

        CEC_ADDR_FREE_USE,

    };



    const cec_logical_address_t HdmiCecHandler::PLAYBACK_ADDR_POOL[] = {

        CEC_ADDR_PLAYBACK_1,

        CEC_ADDR_PLAYBACK_2,

        CEC_ADDR_PLAYBACK_3

    };



    const cec_logical_address_t HdmiCecHandler::RECORDER_ADDR_POOL[] = {

        CEC_ADDR_RECORDER_1,

        CEC_ADDR_RECORDER_2,

        CEC_ADDR_RECORDER_3

    };



    const cec_logical_address_t HdmiCecHandler::TUNER_ADDR_POOL[] = {

        CEC_ADDR_TUNER_1,

        CEC_ADDR_TUNER_2,

        CEC_ADDR_TUNER_3,

        CEC_ADDR_TUNER_4

    };



HdmiCecHandler::HdmiCecHandler(hdmi_cec_device_t* device, jobject callbacksObj) :

    mDevice(device),
@@ -176,39 +225,15 @@ uint16_t HdmiCecHandler::getPhysicalAddress() { 
    return mPhysicalAddress;

}



void HdmiCecHandler::updatePhysicalAddress() {

    uint16_t addr;

    if (!mDevice->get_physical_address(mDevice, &addr)) {

        mPhysicalAddress = addr;

    } else {

        mPhysicalAddress = INVALID_PHYSICAL_ADDRESS;

    }

}



void HdmiCecHandler::updateLogicalAddress() {

    std::map<cec_device_type_t, cec_logical_address_t>::iterator it = mLogicalDevices.begin();

    for (; it != mLogicalDevices.end(); ++it) {

        cec_logical_address_t addr;

        if (!mDevice->get_logical_address(mDevice, it->first, &addr)) {

            it->second = addr;

        }

    }

}



cec_logical_address_t HdmiCecHandler::initLogicalDevice(cec_device_type_t type) {

    cec_logical_address_t addr;

    int res = mDevice->allocate_logical_address(mDevice, type, &addr);



    if (res != 0) {

        ALOGE("Logical Address Allocation failed: %d", res);

    } else {

        ALOGV("Logical Address Allocation success: %d", addr);

    cec_logical_address addr = allocateLogicalAddress(type, CEC_ADDR_UNREGISTERED);

    if (addr != CEC_ADDR_UNREGISTERED && !mDevice->add_logical_address(mDevice, addr)) {

        mLogicalDevices.insert(std::pair<cec_device_type_t, cec_logical_address_t>(type, addr));



        // Broadcast <Report Physical Address> when a new logical address was allocated to let

        // other devices discover the new logical device and its logical - physical address

        // association.

        sendReportPhysicalAddress();

        sendReportPhysicalAddress(addr);

    }

    return addr;

}
@@ -229,14 +254,14 @@ cec_logical_address_t HdmiCecHandler::getLogicalAddress(cec_device_type_t type) 
    return CEC_ADDR_UNREGISTERED;

}



int HdmiCecHandler::getDeviceType(cec_logical_address_t addr) {

cec_device_type_t HdmiCecHandler::getDeviceType(cec_logical_address_t addr) {

    std::map<cec_device_type_t, cec_logical_address_t>::iterator it = mLogicalDevices.begin();

    for (; it != mLogicalDevices.end(); ++it) {

        if (it->second == addr) {

            return it->first;

        }

    }

    return INACTIVE_DEVICE_TYPE;

    return CEC_DEVICE_INACTIVE;

}



void HdmiCecHandler::queueMessage(const MessageEntry& entry) {
@@ -256,26 +281,26 @@ void HdmiCecHandler::queueOutgoingMessage(const cec_message_t& message) { 
    queueMessage(entry);

}



void HdmiCecHandler::sendReportPhysicalAddress() {

void HdmiCecHandler::sendReportPhysicalAddress(cec_logical_address_t addr) {

    if (mPhysicalAddress == INVALID_PHYSICAL_ADDRESS) {

        ALOGE("Invalid physical address.");

        return;

    }

    cec_device_type_t deviceType = getDeviceType(addr);

    if (deviceType == CEC_DEVICE_INACTIVE) {

        ALOGE("Invalid logical address: %d", addr);

        return;

    }



    // Report physical address for each logical one hosted in it.

    std::map<cec_device_type_t, cec_logical_address_t>::iterator it = mLogicalDevices.begin();

    while (it != mLogicalDevices.end()) {

    cec_message_t msg;

        msg.initiator = it->second;  // logical address

    msg.initiator = addr;

    msg.destination = CEC_ADDR_BROADCAST;

    msg.length = 4;

    msg.body[0] = CEC_MESSAGE_REPORT_PHYSICAL_ADDRESS;

    msg.body[1] = (mPhysicalAddress >> 8) & 0xff;

    msg.body[2] = mPhysicalAddress & 0xff;

        msg.body[3] = it->first;  // device type

    msg.body[3] = deviceType;

    queueOutgoingMessage(msg);

        ++it;

    }

}



void HdmiCecHandler::sendActiveSource(cec_logical_address_t srcAddr) {
@@ -410,6 +435,99 @@ void HdmiCecHandler::checkAndClearExceptionFromCallback(JNIEnv* env, const char* 
    }

}



void HdmiCecHandler::updatePhysicalAddress() {

    uint16_t addr;

    if (!mDevice->get_physical_address(mDevice, &addr)) {

        mPhysicalAddress = addr;

    } else {

        mPhysicalAddress = INVALID_PHYSICAL_ADDRESS;

    }

}



void HdmiCecHandler::updateLogicalAddress() {

    mDevice->clear_logical_address(mDevice);

    std::map<cec_device_type_t, cec_logical_address_t>::iterator it = mLogicalDevices.begin();

    for (; it != mLogicalDevices.end(); ++it) {

        cec_logical_address_t addr;

        cec_logical_address_t preferredAddr = it->second;

        cec_device_type_t deviceType = it->first;

        addr = allocateLogicalAddress(deviceType, preferredAddr);

        if (!mDevice->add_logical_address(mDevice, addr)) {

            it->second = addr;

        } else {

            it->second = CEC_ADDR_UNREGISTERED;

        }

    }

}



cec_logical_address_t HdmiCecHandler::allocateLogicalAddress(cec_device_type_t type,

        cec_logical_address_t preferredAddr) {

    const cec_logical_address_t* addrPool;

    size_t poolSize;

    if (getLogicalAddressPool(type, &addrPool, &poolSize) < 0) {

        return CEC_ADDR_UNREGISTERED;

    }

    unsigned start = 0;



    // Find the index of preferred address in the pool. If not found, the start

    // position will be 0. This happens when the passed preferredAddr is set to

    // CEC_ADDR_UNREGISTERED, meaning that no preferred address is given.

    for (unsigned i = 0; i < poolSize; i++) {

        if (addrPool[i] == preferredAddr) {

            start = i;

            break;

        }

    }

    for (unsigned i = 0; i < poolSize; i++) {

        cec_logical_address_t addr = addrPool[(start + i) % poolSize];

        if (!sendPing(addr)) {

            // Failure in pinging means the address is available, not taken by any device.

            ALOGV("Logical Address Allocation success: %d", addr);

            return addr;

        }

    }

    ALOGE("Logical Address Allocation failed");

    return CEC_ADDR_UNREGISTERED;

}



bool HdmiCecHandler::sendPing(cec_logical_address addr) {

    cec_message_t msg;

    msg.initiator = msg.destination = addr;

    msg.length = 0;

    return !mDevice->send_message(mDevice, &msg);



}



#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))



bool HdmiCecHandler::getLogicalAddressPool(cec_device_type_t deviceType,

        const cec_logical_address_t** addrPool, size_t* poolSize) {

    switch (deviceType) {

    case CEC_DEVICE_TV:

        *addrPool = TV_ADDR_POOL;

        *poolSize = ARRAY_SIZE(TV_ADDR_POOL);

        break;

    case CEC_DEVICE_RECORDER:

        *addrPool = RECORDER_ADDR_POOL;

        *poolSize = ARRAY_SIZE(RECORDER_ADDR_POOL);

        break;

    case CEC_DEVICE_TUNER:

        *addrPool = TUNER_ADDR_POOL;

        *poolSize = ARRAY_SIZE(TUNER_ADDR_POOL);

        break;

    case CEC_DEVICE_PLAYBACK:

        *addrPool = PLAYBACK_ADDR_POOL;

        *poolSize = ARRAY_SIZE(PLAYBACK_ADDR_POOL);

        break;

    default:

        ALOGE("Unsupported device type: %d", deviceType);

        return false;

    }

    return true;

}



#undef ARRAY_SIZE



void HdmiCecHandler::dispatchMessage(const MessageEntry& entry) {

    int type = entry.first;

    mMessageQueueLock.unlock();
@@ -434,7 +552,7 @@ void HdmiCecHandler::dispatchMessage(const MessageEntry& entry) { 
void HdmiCecHandler::processIncomingMessage(const cec_message_t& msg) {

    int opcode = msg.body[0];

    if (opcode == CEC_MESSAGE_GIVE_PHYSICAL_ADDRESS) {

        sendReportPhysicalAddress();

        sendReportPhysicalAddress(msg.destination);

    } else if (opcode == CEC_MESSAGE_REQUEST_ACTIVE_SOURCE) {

        handleRequestActiveSource();

    } else if (opcode == CEC_MESSAGE_GET_OSD_NAME) {
@@ -507,7 +625,7 @@ void HdmiCecHandler::handleRequestActiveSource() { 
    JNIEnv* env = AndroidRuntime::getJNIEnv();

    jint activeDeviceType = env->CallIntMethod(mCallbacksObj,

            gHdmiCecServiceClassInfo.getActiveSource);

    if (activeDeviceType != INACTIVE_DEVICE_TYPE) {

    if (activeDeviceType != CEC_DEVICE_INACTIVE) {

        sendActiveSource(getLogicalAddress(static_cast<cec_device_type_t>(activeDeviceType)));

    }

    checkAndClearExceptionFromCallback(env, __FUNCTION__);