bsp_q7s/boardconfig/busConf.h

@@ -66,7 +66,10 @@ namespace gpioNames {
     static constexpr char PAPB_EMPTY_SIGNAL_VC3[] = "papb_empty_signal_vc3";
     static constexpr char RS485_EN_TX_CLOCK[] = "tx_clock_enable_ltc2872";
     static constexpr char RS485_EN_TX_DATA[] = "tx_data_enable_ltc2872";
+    static constexpr char RS485_EN_RX_CLOCK[] = "rx_clock_enable_ltc2872";
+    static constexpr char RS485_EN_RX_DATA[] = "rx_data_enable_ltc2872";
     static constexpr char PDEC_RESET[] = "pdec_reset";
+    static constexpr char BIT_RATE_SEL[] = "bit_rate_sel";
 }
 }
 

bsp_q7s/core/InitMission.cpp

@@ -110,7 +110,7 @@ void initmission::initTasks() {
     // If a command has not been read before the next one arrives, the old command will be
     // overwritten by the PDEC.
     PeriodicTaskIF* pdecHandlerTask = factory->createPeriodicTask(
-            "PDEC_HANDLER", 10, PeriodicTaskIF::MINIMUM_STACK_SIZE, 0.4, missedDeadlineFunc);
+            "PDEC_HANDLER", 50, PeriodicTaskIF::MINIMUM_STACK_SIZE, 1.0, missedDeadlineFunc);
     result = pdecHandlerTask->addComponent(objects::PDEC_HANDLER);
     if(result != HasReturnvaluesIF::RETURN_OK) {
         initmission::printAddObjectError("PDEC Handler", objects::PDEC_HANDLER);

bsp_q7s/core/ObjectFactory.cpp

@@ -79,6 +79,8 @@
 #include <linux/obc/PdecHandler.h>
 #include <linux/obc/PapbVcInterface.h>
 #include <linux/obc/PtmeConfig.h>
+#include <linux/obc/PtmeRateSetter.h>
+#include <linux/obc/TxRateSetterIF.h>
 
 ResetArgs resetArgsGnss0;
 ResetArgs resetArgsGnss1;
@@ -937,8 +939,20 @@ void ObjectFactory::createCcsdsComponents(LinuxLibgpioIF *gpioComIF) {
     ptme->addVcInterface(ccsds::VC2, vc2);
     ptme->addVcInterface(ccsds::VC3, vc3);
 
+    GpioCookie* gpioCookieRateSetter = new GpioCookie;
+    consumer.str("");
+    consumer << "ptme rate setter";
+    // Init to low -> default bit rate is low bit rate (200 kbps in downlink with syrlinks)
+    gpio = new GpiodRegularByLineName(q7s::gpioNames::BIT_RATE_SEL, consumer.str(), gpio::OUT,
+            gpio::LOW);
+    gpioCookieRateSetter->addGpio(gpioIds::BIT_RATE_SEL, gpio);
+    gpioComIF->addGpios(gpioCookieRateSetter);
+
+    TxRateSetterIF* txRateSetterIF = new PtmeRateSetter(gpioIds::BIT_RATE_SEL, gpioComIF);
+
     CCSDSHandler* ccsdsHandler = new CCSDSHandler(objects::CCSDS_HANDLER, objects::PTME,
-            objects::CCSDS_PACKET_DISTRIBUTOR);
+            objects::CCSDS_PACKET_DISTRIBUTOR, txRateSetterIF, gpioComIF,
+            gpioIds::RS485_EN_TX_CLOCK, gpioIds::RS485_EN_TX_DATA);
 
     VirtualChannel* vc = nullptr;
     vc = new VirtualChannel(ccsds::VC0, common::VC0_QUEUE_SIZE);
@@ -967,12 +981,20 @@ void ObjectFactory::createCcsdsComponents(LinuxLibgpioIF *gpioComIF) {
 #if BOARD_TE0720 == 0
     GpioCookie* gpioRS485Chip = new GpioCookie;
     gpio = new GpiodRegularByLineName(q7s::gpioNames::RS485_EN_TX_CLOCK, "RS485 Transceiver",
-            gpio::Direction::OUT, gpio::HIGH);
+            gpio::Direction::OUT, gpio::LOW);
     gpioRS485Chip->addGpio(gpioIds::RS485_EN_TX_CLOCK, gpio);
     gpio = new GpiodRegularByLineName(q7s::gpioNames::RS485_EN_TX_DATA, "RS485 Transceiver",
-            gpio::Direction::OUT, gpio::HIGH);
+            gpio::Direction::OUT, gpio::LOW);
     gpioRS485Chip->addGpio(gpioIds::RS485_EN_TX_DATA, gpio);
 
+    // Default configuration enables RX channels (RXEN = LOW)
+    gpio = new GpiodRegularByLineName(q7s::gpioNames::RS485_EN_RX_CLOCK, "RS485 Transceiver",
+            gpio::Direction::OUT, gpio::LOW);
+    gpioRS485Chip->addGpio(gpioIds::RS485_EN_RX_CLOCK, gpio);
+    gpio = new GpiodRegularByLineName(q7s::gpioNames::RS485_EN_RX_DATA, "RS485 Transceiver",
+            gpio::Direction::OUT, gpio::LOW);
+    gpioRS485Chip->addGpio(gpioIds::RS485_EN_RX_DATA, gpio);
+
     gpioComIF->addGpios(gpioRS485Chip);
 #endif /* BOARD_TE0720 == 0 */
 }

common/config/commonClassIds.h

@@ -22,6 +22,7 @@ enum commonClassIds: uint8_t {
     GOM_SPACE_HANDLER, //GOMS
     PLOC_MEMORY_DUMPER, //PLMEMDUMP
     PDEC_HANDLER, //PDEC
+    CCSDS_HANDLER, //PDEC
 	COMMON_CLASS_ID_END // [EXPORT] : [END]
 };
 

generators/bsp_q7s_objects.csv

@@ -78,6 +78,7 @@
 0x50000701;PAPB_VC1
 0x50000702;PAPB_VC2
 0x50000703;PAPB_VC3
+0x50000704;PDEC_HANDLER
 0x50000800;CCSDS_HANDLER
 0x51000500;PUS_SERVICE_6
 0x53000000;FSFW_OBJECTS_START

generators/events/translateEvents.cpp

@@ -1,7 +1,7 @@
 /**
  * @brief    Auto-generated event translation file. Contains 106 translations.
  * @details
- * Generated on: 2021-10-31 17:56:40
+ * Generated on: 2021-11-22 17:04:42
  */
 #include "translateEvents.h"
 

generators/objects/translateObjects.cpp

@@ -1,8 +1,8 @@
 /**
  * @brief	Auto-generated object translation file.
  * @details
- * Contains 111 translations.
+ * Contains 112 translations.
- * Generated on: 2021-10-13 15:54:21
+ * Generated on: 2021-11-22 17:04:51
  */
 #include "translateObjects.h"
 
@@ -86,6 +86,7 @@ const char *PAPB_VC0_STRING = "PAPB_VC0";
 const char *PAPB_VC1_STRING = "PAPB_VC1";
 const char *PAPB_VC2_STRING = "PAPB_VC2";
 const char *PAPB_VC3_STRING = "PAPB_VC3";
+const char *PDEC_HANDLER_STRING = "PDEC_HANDLER";
 const char *CCSDS_HANDLER_STRING = "CCSDS_HANDLER";
 const char *PUS_SERVICE_6_STRING = "PUS_SERVICE_6";
 const char *FSFW_OBJECTS_START_STRING = "FSFW_OBJECTS_START";
@@ -280,6 +281,8 @@ const char* translateObject(object_id_t object) {
 		return PAPB_VC2_STRING;
 	case 0x50000703:
 		return PAPB_VC3_STRING;
+	case 0x50000704:
+		return PDEC_HANDLER_STRING;
 	case 0x50000800:
 		return CCSDS_HANDLER_STRING;
 	case 0x51000500:

linux/fsfwconfig/OBSWConfig.h.in

@@ -37,7 +37,9 @@ debugging. */
 // Set to 1 if all telemetry should be sent to the PTME IP Core
 #define OBSW_TM_TO_PTME                             1
 // Set to 1 if telecommands are received via the PDEC IP Core
-#define OBSW_TC_FROM_PDEC                           0
+#define OBSW_TC_FROM_PDEC                           1
+
+#define TMTC_TEST_SETUP                             1
 
 #define OBSW_ENABLE_TIMERS                          1
 #define OBSW_ADD_STAR_TRACKER                       0
@@ -92,7 +94,6 @@ debugging. */
 #define OBSW_TEST_TE7020_HEATER                     0
 #define OBSW_TEST_GPIO_OPEN_BY_LABEL                0
 #define OBSW_TEST_GPIO_OPEN_BY_LINE_NAME            0
-#define OBSW_LINK_IS_UP					            1
 
 #define OBSW_DEBUG_P60DOCK                          0
 #define OBSW_DEBUG_PDU1                             0
@@ -109,7 +110,7 @@ debugging. */
 #define OBSW_DEBUG_STARTRACKER                      0
 #define OBSW_DEBUG_PLOC_MPSOC                       0
 #define OBSW_DEBUG_PLOC_SUPERVISOR                  0
-#define OBSW_DEBUG_PDEC_HANDLER	                    0
+#define OBSW_DEBUG_PDEC_HANDLER	                    1
 
 /*******************************************************************/
 /** Hardcoded                                                      */

linux/fsfwconfig/devices/gpioIds.h

@@ -104,7 +104,11 @@ enum gpioId_t {
 
 
     RS485_EN_TX_DATA,
-    RS485_EN_TX_CLOCK
+    RS485_EN_TX_CLOCK,
+    RS485_EN_RX_DATA,
+    RS485_EN_RX_CLOCK,
+
+    BIT_RATE_SEL
 };
 }
 

linux/fsfwconfig/events/translateEvents.cpp

@@ -1,7 +1,7 @@
 /**
  * @brief    Auto-generated event translation file. Contains 106 translations.
  * @details
- * Generated on: 2021-10-31 17:56:40
+ * Generated on: 2021-11-22 17:04:42
  */
 #include "translateEvents.h"
 

linux/fsfwconfig/objects/translateObjects.cpp

@@ -1,8 +1,8 @@
 /**
  * @brief	Auto-generated object translation file.
  * @details
- * Contains 111 translations.
+ * Contains 112 translations.
- * Generated on: 2021-10-13 15:54:21
+ * Generated on: 2021-11-22 17:04:51
  */
 #include "translateObjects.h"
 
@@ -86,6 +86,7 @@ const char *PAPB_VC0_STRING = "PAPB_VC0";
 const char *PAPB_VC1_STRING = "PAPB_VC1";
 const char *PAPB_VC2_STRING = "PAPB_VC2";
 const char *PAPB_VC3_STRING = "PAPB_VC3";
+const char *PDEC_HANDLER_STRING = "PDEC_HANDLER";
 const char *CCSDS_HANDLER_STRING = "CCSDS_HANDLER";
 const char *PUS_SERVICE_6_STRING = "PUS_SERVICE_6";
 const char *FSFW_OBJECTS_START_STRING = "FSFW_OBJECTS_START";
@@ -280,6 +281,8 @@ const char* translateObject(object_id_t object) {
 		return PAPB_VC2_STRING;
 	case 0x50000703:
 		return PAPB_VC3_STRING;
+	case 0x50000704:
+		return PDEC_HANDLER_STRING;
 	case 0x50000800:
 		return CCSDS_HANDLER_STRING;
 	case 0x51000500:

linux/obc/CMakeLists.txt

@@ -3,6 +3,7 @@ target_sources(${TARGET_NAME} PUBLIC
 	Ptme.cpp
 	PdecHandler.cpp
 	PdecConfig.cpp
+	PtmeRateSetter.cpp
 )
 
 

linux/obc/PdecHandler.cpp

@@ -9,14 +9,16 @@
 #include "fsfw/serviceinterface/ServiceInterface.h"
 #include "fsfw/tmtcservices/TmTcMessage.h"
 #include "fsfw/objectmanager/ObjectManager.h"
+#include "fsfw/ipc/QueueFactory.h"
+
 
 PdecHandler::PdecHandler(object_id_t objectId, object_id_t tcDestinationId,
         LinuxLibgpioIF* gpioComIF, gpioId_t pdecReset, std::string uioConfigMemory,
         std::string uioRamMemory, std::string uioRegisters) :
         SystemObject(objectId), tcDestinationId(tcDestinationId), gpioComIF(gpioComIF), pdecReset(
                 pdecReset), uioConfigMemory(uioConfigMemory), uioRamMemory(uioRamMemory), uioRegisters(
-                uioRegisters) {
+                uioRegisters), actionHelper(this, nullptr) {
-
+    commandQueue = QueueFactory::instance()->createMessageQueue(QUEUE_SIZE);
 }
 
 PdecHandler::~PdecHandler() {
@@ -62,9 +64,18 @@ ReturnValue_t PdecHandler::initialize() {
         return ObjectManagerIF::CHILD_INIT_FAILED;
     }
 
+    result = actionHelper.initialize(commandQueue);
+    if (result != RETURN_OK) {
+        return result;
+    }
+
     return RETURN_OK;
 }
 
+MessageQueueId_t PdecHandler::getCommandQueue() const {
+    return commandQueue->getId();
+}
+
 ReturnValue_t PdecHandler::getRegisterAddress() {
     int fd = open(uioRegisters.c_str(), O_RDWR);
     if (fd < 1) {
@@ -168,6 +179,8 @@ ReturnValue_t PdecHandler::performOperation(uint8_t operationCode) {
 
     ReturnValue_t result = RETURN_OK;
 
+    readCommandQueue();
+
     switch(state) {
     case State::INIT:
         resetFarStatFlag();
@@ -183,7 +196,7 @@ ReturnValue_t PdecHandler::performOperation(uint8_t operationCode) {
         if (newTcReceived()) {
             handleNewTc();
         }
-        getClcw();
+        checkLocks();
         break;
     case State::WAIT_FOR_RECOVERY:
         break;
@@ -195,6 +208,24 @@ ReturnValue_t PdecHandler::performOperation(uint8_t operationCode) {
     return RETURN_OK;
 }
 
+void PdecHandler::readCommandQueue(void) {
+    CommandMessage commandMessage;
+    ReturnValue_t result = RETURN_FAILED;
+
+    result = commandQueue->receiveMessage(&commandMessage);
+    if (result == RETURN_OK) {
+        result = actionHelper.handleActionMessage(&commandMessage);
+        if (result == RETURN_OK) {
+            return;
+        }
+        CommandMessage reply;
+        reply.setReplyRejected(CommandMessage::UNKNOWN_COMMAND,
+                commandMessage.getCommand());
+        commandQueue->reply(&reply);
+        return;
+    }
+}
+
 bool PdecHandler::newTcReceived() {
     uint32_t pdecFar = *(registerBaseAddress + PDEC_FAR_OFFSET);
 
@@ -207,6 +238,19 @@ bool PdecHandler::newTcReceived() {
     return true;
 }
 
+void PdecHandler::checkLocks() {
+    uint32_t clcw = getClcw();
+    if (!(clcw & NO_RF_MASK) && (lastClcw & NO_RF_MASK)) {
+        // Rf available changed from 0 to 1
+        triggerEvent(CARRIER_LOCK);
+    }
+    if (!(clcw & NO_BITLOCK_MASK) && (lastClcw & NO_BITLOCK_MASK)) {
+        // Bit lock changed from 0 to 1
+        triggerEvent(BIT_LOCK);
+    }
+    lastClcw = clcw;
+}
+
 bool PdecHandler::checkFrameAna(uint32_t pdecFar) {
     bool frameValid = false;
     FrameAna_t frameAna = static_cast<FrameAna_t>((pdecFar & FRAME_ANA_MASK) >> FRAME_ANA_POSITION);
@@ -434,21 +478,12 @@ uint8_t PdecHandler::getOddParity(uint8_t number) {
     return parityBit;
 }
 
-void PdecHandler::getClcw() {
+uint32_t PdecHandler::getClcw() {
-
+    return *(registerBaseAddress + PDEC_CLCW_OFFSET);
-#if OBSW_DEBUG_PDEC_HANDLER == 1
-    uint32_t clcw = *(registerBaseAddress + PDEC_CLCW_OFFSET);
-    if (debugDivider == 10) {
-        printClcw(clcw);
-        debugDivider = 0;
-        return;
-    }
-    debugDivider++;
-#endif /* OBSW_DEBUG_PDEC_HANDLER == 1 */
-
 }
 
-void PdecHandler::printClcw(uint32_t clcw) {
+void PdecHandler::printClcw() {
+    uint32_t clcw = getClcw();
     uint8_t type = static_cast<uint8_t>((clcw >> 31) & 0x1);
     uint8_t versionNo = static_cast<uint8_t>((clcw >> 29) & 0x3);
     uint8_t status = static_cast<uint8_t>((clcw >> 26) & 0x7);
@@ -487,3 +522,15 @@ void PdecHandler::printClcw(uint32_t clcw) {
     sif::info << std::setw(30) << std::left << "CLCW rep value: " << std::hex
             << "0x" << static_cast<unsigned int>(repValue) << std::endl;
 }
+
+
+ReturnValue_t PdecHandler::executeAction(ActionId_t actionId,
+        MessageQueueId_t commandedBy, const uint8_t* data, size_t size) {
+    switch(actionId) {
+    case PRINT_CLCW:
+        printClcw();
+        return EXECUTION_FINISHED;
+    default:
+        return COMMAND_NOT_IMPLEMENTED;
+    }
+}

linux/obc/PdecHandler.h

@@ -10,6 +10,8 @@
 #include "fsfw/storagemanager/StorageManagerIF.h"
 #include "fsfw/objectmanager/SystemObject.h"
 #include "fsfw/tasks/ExecutableObjectIF.h"
+#include "fsfw/action/ActionHelper.h"
+#include "fsfw/action/HasActionsIF.h"
 
 /**
  * @brief   This class controls the PDEC IP Core implemented in the programmable logic of the
@@ -29,7 +31,10 @@
  *
  * @author  J. Meier
  */
-class PdecHandler : public SystemObject, public ExecutableObjectIF, public HasReturnvaluesIF {
+class PdecHandler : public SystemObject,
+                    public ExecutableObjectIF,
+                    public HasReturnvaluesIF,
+                    public HasActionsIF {
 
 public:
     /**
@@ -51,6 +56,34 @@ public:
 
     ReturnValue_t initialize() override;
 
+    MessageQueueId_t getCommandQueue() const;
+
+    ReturnValue_t executeAction(ActionId_t actionId, MessageQueueId_t commandedBy,
+                const uint8_t* data, size_t size) override;
+
+    /**
+     * brief    Returns the 32-bit wide communication link control word (CLCW)
+     */
+    uint32_t getClcw();
+
+    /**
+     * @rief    Reads and prints the CLCW. Can be useful for debugging.
+     */
+    void printClcw();
+
+    static const uint8_t SUBSYSTEM_ID = SUBSYSTEM_ID::PDEC_HANDLER;
+
+    //! [EXPORT] : [COMMENT] Frame acceptance report signals an invalid frame
+    //! P1: The frame analysis information (FrameAna field of PDEC_FAR register)
+    //! P2: When frame declared illegal this parameter this parameter gives information about the reason (IReason field of the PDEC_FAR register)
+    static const Event INVALID_TC_FRAME = MAKE_EVENT(1, severity::HIGH);
+    //! [EXPORT] : [COMMENT] Read invalid FAR from PDEC after startup
+    static const Event INVALID_FAR = MAKE_EVENT(2, severity::HIGH);
+    //! [EXPORT] : [COMMENT] Carrier lock detected
+    static const Event CARRIER_LOCK = MAKE_EVENT(3, severity::INFO);
+    //! [EXPORT] : [COMMENT] Bit lock detected (data valid)
+    static const Event BIT_LOCK = MAKE_EVENT(4, severity::INFO);
+
 private:
 
     static const uint8_t INTERFACE_ID = CLASS_ID::PDEC_HANDLER;
@@ -63,6 +96,9 @@ private:
     static const ReturnValue_t AD_DISCARDED_WAIT = MAKE_RETURN_CODE(0xA4);
     static const ReturnValue_t AD_DISCARDED_NS_VS = MAKE_RETURN_CODE(0xA5);
 
+    //! [EXPORT] : [COMMENT] Received action message with unknown action id
+    static const ReturnValue_t COMMAND_NOT_IMPLEMENTED = MAKE_RETURN_CODE(0xB0);
+
     static const ReturnValue_t NO_REPORT = MAKE_RETURN_CODE(0xA6);
     //! Error in version number and reserved A and B fields
     static const ReturnValue_t ERROR_VERSION_NUMBER = MAKE_RETURN_CODE(0xA7);
@@ -79,14 +115,10 @@ private:
     //! Invalid BC control command
     static const ReturnValue_t INVALID_BC_CC = MAKE_RETURN_CODE(0xAE);
 
-    static const uint8_t SUBSYSTEM_ID = SUBSYSTEM_ID::PDEC_HANDLER;
+    static const uint32_t QUEUE_SIZE = common::CCSDS_HANDLER_QUEUE_SIZE;
 
-    //! [EXPORT] : [COMMENT] Frame acceptance report signals an invalid frame
+    // Action IDs
-    //! P1: The frame analysis information (FrameAna field of PDEC_FAR register)
+    static const ActionId_t PRINT_CLCW = 0;
-    //! P2: When frame declared illegal this parameter this parameter gives information about the reason (IReason field of the PDEC_FAR register)
-    static const Event INVALID_TC_FRAME = MAKE_EVENT(1, severity::HIGH);
-    //! [EXPORT] : [COMMENT] Read invalid FAR from PDEC after startup
-    static const Event INVALID_FAR = MAKE_EVENT(2, severity::HIGH);
 
     static const uint8_t STAT_POSITION = 31;
     static const uint8_t FRAME_ANA_POSITION = 28;
@@ -124,7 +156,12 @@ private:
     static const size_t MAX_TC_SEGMENT_SIZE = 1017;
     static const uint8_t MAP_ID_MASK = 0x3F;
 
+#if BOARD_TE0720 == 1
     static const uint32_t PHYSICAL_RAM_BASE_ADDRESS = 0x32000000;
+#else
+    static const uint32_t PHYSICAL_RAM_BASE_ADDRESS = 0x26000000;
+#endif
+
     static const uint32_t MAP_ADDR_LUT_OFFSET = 0xA0;
     static const uint32_t MAP_CLK_FREQ_OFFSET = 0x90;
 
@@ -139,6 +176,9 @@ private:
 
     static const uint32_t TC_SEGMENT_LEN = 1017;
 
+    static const uint32_t NO_RF_MASK = 0x8000;
+    static const uint32_t NO_BITLOCK_MASK = 0x4000;
+
     /**
      * TCs with map addresses (also know as Map IDs) assigned to this channel will be stored in
      * the PDEC memory.
@@ -177,6 +217,11 @@ private:
         WAIT_FOR_RECOVERY
     };
 
+    /**
+     * @brief   Reads and handles messages stored in the commandQueue
+     */
+    void readCommandQueue(void);
+
     /**
      * @brief   Opens UIO device assigned to AXI to AHB converter giving access to the PDEC
      *          registers. The register base address will be mapped into the virtual address space.
@@ -222,6 +267,12 @@ private:
      */
     bool newTcReceived();
 
+    /**
+     * @brief   Checks if carrier lock or bit lock has been detected and triggers appropriate
+     *          event.
+     */
+    void checkLocks();
+
     /**
      * @brief   Analyzes the FramAna field (frame analysis data) of a FAR report.
      *
@@ -279,9 +330,6 @@ private:
      */
     uint8_t getOddParity(uint8_t number);
 
-    void getClcw();
-    void printClcw(uint32_t clcw);
-
     object_id_t tcDestinationId;
 
     AcceptsTelecommandsIF* tcDestination = nullptr;
@@ -304,8 +352,12 @@ private:
     // UIO device file giving access to the PDEC register space
     std::string uioRegisters;
 
+    ActionHelper actionHelper;
+
     StorageManagerIF* tcStore = nullptr;
 
+    MessageQueueIF* commandQueue = nullptr;
+
     State state = State::INIT;
 
     /**
@@ -324,7 +376,8 @@ private:
 
     uint8_t tcSegment[TC_SEGMENT_LEN];
 
-    uint8_t debugDivider = 0;
+    // Used to check carrier and bit lock changes (default set to no rf and no bitlock)
+    uint32_t lastClcw = 0xC000;
 };
 
 #endif /* LINUX_OBC_PDECHANDLER_H_ */

linux/obc/PtmeRateSetter.cpp

@@ -0,0 +1,27 @@
+#include "PtmeRateSetter.h"
+#include "fsfw/serviceinterface/ServiceInterface.h"
+
+PtmeRateSetter::PtmeRateSetter(gpioId_t bitrateSel, GpioIF* gpioif) :
+        bitrateSel(bitrateSel), gpioif(gpioif) {
+}
+
+PtmeRateSetter::~PtmeRateSetter() {
+}
+
+ReturnValue_t PtmeRateSetter::setRate(BitRates rate) {
+    ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
+    switch(rate) {
+    case RATE_2000KHZ:
+        result = gpioif->pullHigh(bitrateSel);
+        break;
+    case RATE_400KHZ:
+        result = gpioif->pullLow(bitrateSel);
+        break;
+    default:
+        sif::debug << "PtmeRateSetter::setRate: Invalid rate" << std::endl;
+        result = HasReturnvaluesIF::RETURN_FAILED;
+        break;
+    }
+    return result;
+}
+

linux/obc/PtmeRateSetter.h

@@ -0,0 +1,40 @@
+#ifndef LINUX_OBC_PTMERATESETTER_H_
+#define LINUX_OBC_PTMERATESETTER_H_
+
+#include "TxRateSetterIF.h"
+#include "fsfw_hal/common/gpio/gpioDefinitions.h"
+#include "fsfw_hal/common/gpio/GpioIF.h"
+#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+
+/**
+ * @brief   Class to set the downlink bit rate by using the cadu_rate_switcher implemented in
+ *          the programmable logic.
+ *
+ * @details The cadu_rate_switcher module sets the input rate to the syrlinks transceiver either
+ *          to 2000 kHz (bitrateSel = 1) or 400 kHz (bitrate = 0).
+ *
+ * @author  J. Meier
+ */
+class PtmeRateSetter: public TxRateSetterIF {
+public:
+
+    /**
+     * @brief Constructor
+     *
+     * @param bitrateSel    GPIO ID of the GPIO connected to the bitrate_sel input of the
+     *                      cadu_rate_switcher.
+     * @param gpioif        GPIO interface to drive the bitrateSel GPIO
+     */
+    PtmeRateSetter(gpioId_t bitrateSel, GpioIF* gpioif);
+    virtual ~PtmeRateSetter();
+
+    virtual ReturnValue_t setRate(BitRates rate);
+
+private:
+
+    gpioId_t bitrateSel = gpio::NO_GPIO;
+
+    GpioIF* gpioif = nullptr;
+};
+
+#endif /* LINUX_OBC_PTMERATESETTER_H_ */

linux/obc/TxRateSetterIF.h

@@ -0,0 +1,25 @@
+#ifndef LINUX_OBC_TXRATESETTERIF_H_
+#define LINUX_OBC_TXRATESETTERIF_H_
+
+#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+
+enum BitRates : uint32_t {
+        RATE_2000KHZ,
+        RATE_400KHZ
+};
+
+/**
+ * @brief  Abstract class for objects implementing the functionality to switch the
+ *         downlink bit rate.
+ *
+ * @author  J. Meier
+ */
+class TxRateSetterIF {
+public:
+    TxRateSetterIF() {};
+    virtual ~TxRateSetterIF() {};
+
+    virtual ReturnValue_t setRate(BitRates bitRate) = 0;
+};
+
+#endif /* LINUX_OBC_TXRATESETTERIF_H_ */

mission/tmtc/CCSDSHandler.cpp

@@ -2,21 +2,30 @@
 #include "fsfw/serviceinterface/serviceInterfaceDefintions.h"
 #include "fsfw/objectmanager/ObjectManager.h"
 #include "fsfw/ipc/QueueFactory.h"
+#include "fsfw/events/EventManagerIF.h"
+
+#include <linux/obc/PdecHandler.h>
 
 #include "CCSDSHandler.h"
 
-CCSDSHandler::CCSDSHandler(object_id_t objectId, object_id_t ptmeId, object_id_t tcDestination) :
+CCSDSHandler::CCSDSHandler(object_id_t objectId, object_id_t ptmeId, object_id_t tcDestination,
-        SystemObject(objectId), ptmeId(ptmeId), tcDestination(tcDestination), parameterHelper(this) {
+        TxRateSetterIF* txRateSetterIF, GpioIF* gpioIF, gpioId_t enTxClock, gpioId_t enTxData) :
+        SystemObject(objectId), ptmeId(ptmeId), tcDestination(tcDestination), parameterHelper(this), actionHelper(
+                this, nullptr), txRateSetterIF(txRateSetterIF), gpioIF(gpioIF), enTxClock(
+                enTxClock), enTxData(enTxData) {
     commandQueue = QueueFactory::instance()->createMessageQueue(QUEUE_SIZE);
+    eventQueue = QueueFactory::instance()->createMessageQueue(EventMessage::EVENT_MESSAGE_SIZE * 2);
 }
 
 CCSDSHandler::~CCSDSHandler() {
 }
 
 ReturnValue_t CCSDSHandler::performOperation(uint8_t operationCode) {
+    checkEvents();
     readCommandQueue();
     handleTelemetry();
     handleTelecommands();
+    checkTxTimer();
     return RETURN_OK;
 }
 
@@ -55,6 +64,11 @@ ReturnValue_t CCSDSHandler::initialize() {
 		return result;
 	}
 
+	result = actionHelper.initialize(commandQueue);
+    if (result != RETURN_OK) {
+        return result;
+    }
+
 	VirtualChannelMapIter iter;
     for (iter = virtualChannelMap.begin(); iter != virtualChannelMap.end(); iter++) {
         result = iter->second->initialize();
@@ -64,6 +78,27 @@ ReturnValue_t CCSDSHandler::initialize() {
         iter->second->setPtmeObject(ptme);
     }
 
+    EventManagerIF* manager = ObjectManager::instance()->get<EventManagerIF>(
+                objects::EVENT_MANAGER);
+        if (manager == nullptr) {
+#if FSFW_CPP_OSTREAM_ENABLED == 1
+        sif::error << "CCSDSHandler::initialize: Invalid event manager" << std::endl;
+#endif
+        return RETURN_FAILED;
+    }
+    result = manager->registerListener(eventQueue->getId());
+    if (result != HasReturnvaluesIF::RETURN_OK) {
+        return result;
+    }
+    result = manager->subscribeToEventRange(eventQueue->getId(),
+            event::getEventId(PdecHandler::CARRIER_LOCK), event::getEventId(PdecHandler::BIT_LOCK));
+    if (result != HasReturnvaluesIF::RETURN_OK) {
+#if FSFW_CPP_OSTREAM_ENABLED == 1
+        sif::error << "CCSDSHandler::initialize: Failed to subscribe to events from PDEC "
+                "handler" << std::endl;
+#endif
+        return result;
+    }
 	return result;
 }
 
@@ -77,10 +112,15 @@ void CCSDSHandler::readCommandQueue(void) {
         if (result == RETURN_OK) {
             return;
         }
+        result = actionHelper.handleActionMessage(&commandMessage);
+        if (result == RETURN_OK) {
+            return;
+        }
         CommandMessage reply;
         reply.setReplyRejected(CommandMessage::UNKNOWN_COMMAND,
                 commandMessage.getCommand());
         commandQueue->reply(&reply);
+        return;
     }
 }
 
@@ -140,3 +180,119 @@ MessageQueueId_t CCSDSHandler::getRequestQueue() {
     // Forward packets directly to TC distributor
     return tcDistributorQueueId;
 }
+
+ReturnValue_t CCSDSHandler::executeAction(ActionId_t actionId,
+        MessageQueueId_t commandedBy, const uint8_t* data, size_t size) {
+
+    switch(actionId) {
+    case SET_LOW_RATE: {
+        txRateSetterIF->setRate(BitRates::RATE_400KHZ);
+        return EXECUTION_FINISHED;
+    }
+    case SET_HIGH_RATE: {
+        txRateSetterIF->setRate(BitRates::RATE_2000KHZ);
+        return EXECUTION_FINISHED;
+    }
+    case EN_TRANSMITTER: {
+        enableTransmit();
+        return EXECUTION_FINISHED;
+    }
+    case DIS_TRANSMITTER: {
+        disableTransmit();
+        return EXECUTION_FINISHED;
+    }
+    default:
+        return COMMAND_NOT_IMPLEMENTED;
+    }
+}
+
+void CCSDSHandler::checkEvents() {
+    EventMessage event;
+    for (ReturnValue_t result = eventQueue->receiveMessage(&event);
+            result == RETURN_OK; result = eventQueue->receiveMessage(&event)) {
+        switch (event.getMessageId()) {
+        case EventMessage::EVENT_MESSAGE:
+            handleEvent(&event);
+            break;
+        default:
+            sif::debug << "CCSDSHandler::checkEvents: Did not subscribe to this event message"
+                << std::endl;
+            break;
+        }
+    }
+}
+
+
+void CCSDSHandler::handleEvent(EventMessage* eventMessage) {
+    Event event = eventMessage->getEvent();
+    switch(event){
+    case PdecHandler::BIT_LOCK: {
+        handleBitLockEvent();
+        break;
+    }
+    case PdecHandler::CARRIER_LOCK: {
+        handleCarrierLockEvent();
+        break;
+    }
+    default:
+        sif::debug << "CCSDSHandler::handleEvent: Did not subscribe to this event"
+            << std::endl;
+        break;
+    }
+}
+
+void CCSDSHandler::handleBitLockEvent() {
+    if(transmitterCountdown.isBusy()) {
+        // Transmitter already enabled
+        return;
+    }
+    enableTransmit();
+}
+
+void CCSDSHandler::handleCarrierLockEvent() {
+    if (!enableTxWhenCarrierLock) {
+        return;
+    }
+    enableTransmit();
+}
+
+void CCSDSHandler::forwardLinkstate() {
+    VirtualChannelMapIter iter;
+    for(iter =  virtualChannelMap.begin(); iter != virtualChannelMap.end(); iter++) {
+        iter->second->setLinkState(linkState);
+    }
+}
+
+void CCSDSHandler::enableTransmit() {
+    if(transmitterCountdown.isBusy()) {
+        // Transmitter already enabled
+        return;
+    }
+    transmitterCountdown.setTimeout(TRANSMITTER_TIMEOUT);
+#if BOARD_TE0720 == 0
+    gpioIF->pullHigh(enTxClock);
+    gpioIF->pullHigh(enTxData);
+#endif /* BOARD_TE0720 == 0 */
+    linkState = UP;
+    // Set link state of all virtual channels to link up
+    forwardLinkstate();
+}
+
+void CCSDSHandler::checkTxTimer() {
+    if(linkState == DOWN) {
+        return;
+    }
+    if (transmitterCountdown.hasTimedOut()) {
+        disableTransmit();
+    }
+}
+
+void CCSDSHandler::disableTransmit() {
+#if BOARD_TE0720 == 0
+        gpioIF->pullLow(enTxClock);
+        gpioIF->pullLow(enTxData);
+#endif /* BOARD_TE0720 == 0 */
+    linkState = DOWN;
+    forwardLinkstate();
+    transmitterCountdown.setTimeout(0);
+}

mission/tmtc/CCSDSHandler.h

@@ -8,6 +8,13 @@
 #include "fsfw/tmtcservices/AcceptsTelemetryIF.h"
 #include "fsfw/tmtcservices/AcceptsTelecommandsIF.h"
 #include "fsfw/parameters/ParameterHelper.h"
+#include "fsfw/action/ActionHelper.h"
+#include "fsfw/action/HasActionsIF.h"
+#include "fsfw/timemanager/Countdown.h"
+#include "fsfw/events/EventMessage.h"
+#include "linux/obc/TxRateSetterIF.h"
+#include "fsfw_hal/common/gpio/gpioDefinitions.h"
+#include "fsfw_hal/common/gpio/GpioIF.h"
 #include "VirtualChannel.h"
 #include <unordered_map>
 
@@ -22,7 +29,8 @@ class CCSDSHandler: public SystemObject,
 		public AcceptsTelemetryIF,
 		public AcceptsTelecommandsIF,
 		public HasReturnvaluesIF,
-		public ReceivesParameterMessagesIF {
+		public ReceivesParameterMessagesIF,
+		public HasActionsIF {
 public:
 
     using VcId_t = uint8_t;
@@ -33,8 +41,14 @@ public:
      * @param objectId  Object ID of the CCSDS handler
      * @param ptmeId    Object ID of the PTME object providing access to the PTME IP Core.
      * @param tcDestination Object ID of object handling received TC space packets
+     * @param txRateSetter  Object providing the functionality to switch the input bitrate of
+     *                      the S-Band transceiver.
+     * @param gpioIF    Required to enable TX data and TX clock RS485 transceiver chips.
+     * @param enTxClock GPIO ID of RS485 tx clock enable
+     * @param enTxData  GPIO ID of RS485 tx data enable
      */
-	CCSDSHandler(object_id_t objectId, object_id_t ptmeId, object_id_t tcDestination);
+    CCSDSHandler(object_id_t objectId, object_id_t ptmeId, object_id_t tcDestination,
+            TxRateSetterIF* txRateSetterIF, GpioIF* gpioIF, gpioId_t enTxClock, gpioId_t enTxData);
 
 	~CCSDSHandler();
 
@@ -58,10 +72,34 @@ public:
     uint16_t getIdentifier() override;
     MessageQueueId_t getRequestQueue() override;
 
+    virtual ReturnValue_t executeAction(ActionId_t actionId, MessageQueueId_t commandedBy,
+            const uint8_t* data, size_t size);
+
 private:
 
+    static const uint8_t INTERFACE_ID = CLASS_ID::CCSDS_HANDLER;
+
 	static const uint32_t QUEUE_SIZE = common::CCSDS_HANDLER_QUEUE_SIZE;
 
+	static const ActionId_t SET_LOW_RATE = 0;
+	static const ActionId_t SET_HIGH_RATE = 1;
+	static const ActionId_t EN_TRANSMITTER = 2;
+	static const ActionId_t DIS_TRANSMITTER = 3;
+
+	//! [EXPORT] : [COMMENT] Received action message with unknown action id
+	static const ReturnValue_t COMMAND_NOT_IMPLEMENTED = MAKE_RETURN_CODE(0xA0);
+
+#if TMTC_TEST_SETUP == 0
+	// syrlinks must not be transmitting more than 15 minutes (according to datasheet)
+	static const uint32_t TRANSMITTER_TIMEOUT = 900000; //900000 ms = 15 min
+#else
+	// Set to high value when not sending via syrlinks
+	static const uint32_t TRANSMITTER_TIMEOUT = 86400000; // 1 day
+#endif /* TMTC_TEST_SETUP == 0 */
+
+	static const bool UP = true;
+	static const bool DOWN = false;
+
 	using VirtualChannelMap = std::unordered_map<VcId_t, VirtualChannel*>;
     using VirtualChannelMapIter = VirtualChannelMap::iterator;
 
@@ -73,14 +111,58 @@ private:
     object_id_t tcDestination;
 
     MessageQueueIF* commandQueue = nullptr;
+    MessageQueueIF* eventQueue = nullptr;
 
     ParameterHelper parameterHelper;
 
+    ActionHelper actionHelper;
+
     MessageQueueId_t tcDistributorQueueId;
 
+    TxRateSetterIF* txRateSetterIF = nullptr;
+
+    GpioIF* gpioIF = nullptr;
+    gpioId_t enTxClock = gpio::NO_GPIO;
+    gpioId_t enTxData = gpio::NO_GPIO;
+
+    // Countdown to disable transmitter after 15 minutes
+    Countdown transmitterCountdown;
+
+    // When true transmitting is started as soon as carrier lock has been detected
+    bool enableTxWhenCarrierLock = false;
+
+    bool linkState = DOWN;
+
     void readCommandQueue(void);
 	void handleTelemetry();
 	void handleTelecommands();
+	void checkEvents();
+	void handleEvent(EventMessage* eventMessage);
+
+	void handleBitLockEvent();
+	void handleCarrierLockEvent();
+
+	/**
+	 * @brief    Forward link state to virtual channels.
+	 */
+	void forwardLinkstate();
+
+	/**
+	 * @brief   Starts transmit timer and enables transmitter.
+	 */
+	void enableTransmit();
+
+	/**
+	 * @brief   Checks Tx timer for timeout and disables RS485 tx clock and tx data in case
+	 *          timer has expired.
+	 */
+	void checkTxTimer();
+
+	/**
+	 * @brief   Disables the transmitter by pulling the enable tx clock and tx data pin of the
+	 *          RS485 transceiver chips to high.
+	 */
+	void disableTransmit();
 };
 
 #endif /* CCSDSHANDLER_H_ */

mission/tmtc/VirtualChannel.cpp

@@ -64,6 +64,6 @@ void VirtualChannel::setPtmeObject(PtmeIF* ptme_) {
 	ptme = ptme_;
 }
 
-void VirtualChannel::setLinkState(bool linkIsUp) {
+void VirtualChannel::setLinkState(bool linkIsUp_) {
-    linkIsUp = linkIsUp;
+    linkIsUp = linkIsUp_;
 }

mission/tmtc/VirtualChannel.h

@@ -38,7 +38,7 @@ class VirtualChannel: public AcceptsTelemetryIF, public HasReturnvaluesIF {
 	 * @brief   Can be used by the owner to set the link state. Packets will be discarded if link
 	 *          to ground station is down.
 	 */
-	void setLinkState(bool linkIsUp);
+	void setLinkState(bool linkIsUp_);
 
 private:
 
@@ -46,11 +46,7 @@ private:
 	MessageQueueIF* tmQueue = nullptr;
 	uint8_t vcId;
 
-#if OBSW_LINK_IS_UP == 1
-	bool linkIsUp = true;
-#else
 	bool linkIsUp = false;
-#endif /* OBSW_LINK_IS_UP == 1 */
 
 	StorageManagerIF* tmStore = nullptr;
 };

tmtc

@@ -1 +1 @@
-Subproject commit b2cc2354d410b0bc0d80c481bfd37afc580e63cf
+Subproject commit aabbb129a6df1d33cf10770a5ecb6336c698f0e6