CHANGELOG.md

@@ -16,6 +16,8 @@ will consitute of a breaking change warranting a new major release:
 
 # [unreleased]
 
+Requires firmware update for new FPGA design where reset line is routed into the software.
+
 ## Added
 
 - Added NaN and Inf check for the `MEKF`. If these are detected, the `AcsController` will reset
@@ -36,6 +38,13 @@ will consitute of a breaking change warranting a new major release:
   Furthermore, the submode in the NORMAL mode now should be 0 instead of some ON mode submode.
 - Updated GYR bias values to newest measurements. This also corrects the ADIS values to always
   consit of just one digit.
+- The CCSDS IP core handler now exposes a parameter to enable the priority select mode
+  for the PTME core. This mode prioritizes virtual channels with a lower index, so for example
+  the virtual channel (VC0) will have the highest priority, while VC3 will have the lowestg
+  priority. This mode will be enabled by default for now, but can be set via the parameter IF with
+  the unique parameter ID 0. The update of this mode requires a PTME reset. Therefore, it will only
+  be performed when the transmitter is off to avoid weird bugs.
+- Connect and handle reset line for the PTME core in the software now.
 - Safe mode controller failure event now only triggers once per minute.
 
 # [v1.38.0] 2023-03-17

bsp_q7s/boardconfig/busConf.h

@@ -90,6 +90,8 @@ static constexpr char PAPB_BUSY_SIGNAL_VC2[] = "papb_busy_signal_vc2";
 static constexpr char PAPB_EMPTY_SIGNAL_VC2[] = "papb_empty_signal_vc2";
 static constexpr char PAPB_BUSY_SIGNAL_VC3[] = "papb_busy_signal_vc3";
 static constexpr char PAPB_EMPTY_SIGNAL_VC3[] = "papb_empty_signal_vc3";
+static constexpr char PTME_RESETN[] = "ptme_resetn";
+
 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";

bsp_q7s/core/ObjectFactory.cpp

@@ -748,6 +748,9 @@ ReturnValue_t ObjectFactory::createCcsdsComponents(CcsdsComponentArgs& args) {
   gpioCookiePtmeIp->addGpio(gpioIds::VC3_PAPB_BUSY, gpio);
   gpio = new GpiodRegularByLineName(q7s::gpioNames::PAPB_EMPTY_SIGNAL_VC3, "PAPB VC3");
   gpioCookiePtmeIp->addGpio(gpioIds::VC3_PAPB_EMPTY, gpio);
+  gpio = new GpiodRegularByLineName(q7s::gpioNames::PTME_RESETN, "PTME RESETN",
+                                    gpio::Direction::OUT, gpio::Levels::HIGH);
+  gpioCookiePtmeIp->addGpio(gpioIds::PTME_RESETN, gpio);
   gpioChecker(args.gpioComIF.addGpios(gpioCookiePtmeIp), "PTME PAPB VCs");
   // Creating virtual channel interfaces
   VirtualChannelIF* vc0 =
@@ -772,9 +775,14 @@ ReturnValue_t ObjectFactory::createCcsdsComponents(CcsdsComponentArgs& args) {
       new AxiPtmeConfig(objects::AXI_PTME_CONFIG, q7s::UIO_PTME, q7s::uiomapids::PTME_CONFIG);
   PtmeConfig* ptmeConfig = new PtmeConfig(objects::PTME_CONFIG, axiPtmeConfig);
 
-  *args.ipCoreHandler = new CcsdsIpCoreHandler(
+  PtmeGpios gpios;
-      objects::CCSDS_HANDLER, objects::CCSDS_PACKET_DISTRIBUTOR, *ptmeConfig, LINK_STATE,
+  gpios.enableTxClock = gpioIds::RS485_EN_TX_CLOCK;
-      &args.gpioComIF, gpioIds::RS485_EN_TX_CLOCK, gpioIds::RS485_EN_TX_DATA);
+  gpios.enableTxData = gpioIds::RS485_EN_TX_CLOCK;
+  gpios.ptmeResetn = gpioIds::PTME_RESETN;
+
+  *args.ipCoreHandler =
+      new CcsdsIpCoreHandler(objects::CCSDS_HANDLER, objects::CCSDS_PACKET_DISTRIBUTOR, *ptmeConfig,
+                             LINK_STATE, &args.gpioComIF, gpios);
   // This VC will receive all live TM
   auto* vcWithQueue =
       new VirtualChannelWithQueue(objects::PTME_VC0_LIVE_TM, ccsds::VC0, "PTME VC0 LIVE TM", *ptme,

common/config/devices/gpioIds.h

@@ -102,6 +102,7 @@ enum gpioId_t {
   VC2_PAPB_BUSY,
   VC3_PAPB_EMPTY,
   VC3_PAPB_BUSY,
+  PTME_RESETN,
 
   PDEC_RESET,
 

linux/ipcore/AxiPtmeConfig.cpp

@@ -71,6 +71,22 @@ ReturnValue_t AxiPtmeConfig::disableTxclockInversion() {
   return returnvalue::OK;
 }
 
+ReturnValue_t AxiPtmeConfig::enableBatPriorityBit() {
+  ReturnValue_t result = writeBit(COMMON_CONFIG_REG, true, BitPos::EN_BAT_PRIORITY);
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  return returnvalue::OK;
+}
+
+ReturnValue_t AxiPtmeConfig::disableBatPriorityBit() {
+  ReturnValue_t result = writeBit(COMMON_CONFIG_REG, false, BitPos::EN_BAT_PRIORITY);
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  return returnvalue::OK;
+}
+
 ReturnValue_t AxiPtmeConfig::writeReg(uint32_t regOffset, uint32_t writeVal) {
   ReturnValue_t result = returnvalue::OK;
   result = mutex->lockMutex(timeoutType, mutexTimeout);

linux/ipcore/AxiPtmeConfig.h

@@ -54,6 +54,9 @@ class AxiPtmeConfig : public SystemObject {
   ReturnValue_t enableTxclockInversion();
   ReturnValue_t disableTxclockInversion();
 
+  ReturnValue_t enableBatPriorityBit();
+  ReturnValue_t disableBatPriorityBit();
+
  private:
   // Address of register storing the bitrate configuration parameter
   static const uint32_t CADU_BITRATE_REG = 0x0;
@@ -61,7 +64,7 @@ class AxiPtmeConfig : public SystemObject {
   static const uint32_t COMMON_CONFIG_REG = 0x4;
   static const uint32_t ADRESS_DIVIDER = 4;
 
-  enum class BitPos : uint32_t { EN_TX_CLK_MANIPULATOR, INVERT_CLOCK };
+  enum class BitPos : uint32_t { EN_TX_CLK_MANIPULATOR = 0, INVERT_CLOCK = 1, EN_BAT_PRIORITY = 2 };
 
   std::string axiUio;
   std::string uioMap;

linux/ipcore/PtmeConfig.cpp

@@ -48,3 +48,11 @@ ReturnValue_t PtmeConfig::configTxManipulator(bool enable) {
   }
   return result;
 }
+
+ReturnValue_t PtmeConfig::enableBatPriorityBit(bool enable) {
+  if (enable) {
+    return axiPtmeConfig->enableBatPriorityBit();
+  } else {
+    return axiPtmeConfig->disableBatPriorityBit();
+  }
+}

linux/ipcore/PtmeConfig.h

@@ -1,6 +1,8 @@
 #ifndef LINUX_OBC_PTMECONFIG_H_
 #define LINUX_OBC_PTMECONFIG_H_
 
+#include <fsfw_hal/common/gpio/gpioDefinitions.h>
+
 #include "AxiPtmeConfig.h"
 #include "fsfw/objectmanager/SystemObject.h"
 #include "fsfw/returnvalues/returnvalue.h"
@@ -53,6 +55,15 @@ class PtmeConfig : public SystemObject {
    */
   ReturnValue_t configTxManipulator(bool enable);
 
+  /**
+   * Enable the bat priority bit in the PTME wrapper component.
+   * Please note that a reset of the PTME is still required as specified in the documentation.
+   * This is done by a higher level component.
+   * @param enable
+   * @return
+   */
+  ReturnValue_t enableBatPriorityBit(bool enable);
+
  private:
   static const uint8_t INTERFACE_ID = CLASS_ID::RATE_SETTER;
 

mission/tmtc/CcsdsIpCoreHandler.cpp

@@ -14,7 +14,7 @@
 
 CcsdsIpCoreHandler::CcsdsIpCoreHandler(object_id_t objectId, object_id_t tcDestination,
                                        PtmeConfig& ptmeConfig, std::atomic_bool& linkState,
-                                       GpioIF* gpioIF, gpioId_t enTxClock, gpioId_t enTxData)
+                                       GpioIF* gpioIF, PtmeGpios gpioIds)
     : SystemObject(objectId),
       linkState(linkState),
       tcDestination(tcDestination),
@@ -22,9 +22,8 @@ CcsdsIpCoreHandler::CcsdsIpCoreHandler(object_id_t objectId, object_id_t tcDesti
       actionHelper(this, nullptr),
       modeHelper(this),
       ptmeConfig(ptmeConfig),
-      gpioIF(gpioIF),
+      ptmeGpios(gpioIds),
-      enTxClock(enTxClock),
+      gpioIF(gpioIF) {
-      enTxData(enTxData) {
   commandQueue = QueueFactory::instance()->createMessageQueue(QUEUE_SIZE);
   auto mqArgs = MqArgs(objectId, static_cast<void*>(this));
   eventQueue =
@@ -71,6 +70,12 @@ ReturnValue_t CcsdsIpCoreHandler::initialize() {
     return ObjectManagerIF::CHILD_INIT_FAILED;
   }
 
+  if (batPriorityParam == 0) {
+    disablePrioritySelectMode();
+  } else {
+    enablePrioritySelectMode();
+  }
+
 #if OBSW_SYRLINKS_SIMULATED == 1
   // Update data on rising edge
   ptmeConfig.invertTxClock(false);
@@ -111,7 +116,24 @@ ReturnValue_t CcsdsIpCoreHandler::getParameter(uint8_t domainId, uint8_t uniqueI
                                                ParameterWrapper* parameterWrapper,
                                                const ParameterWrapper* newValues,
                                                uint16_t startAtIndex) {
-  return returnvalue::OK;
+  if ((domainId == 0) and (uniqueIdentifier == ParamId::BAT_PRIORITY)) {
+    uint8_t newVal = 0;
+    ReturnValue_t result = newValues->getElement(&newVal);
+    if (result != returnvalue::OK) {
+      return result;
+    }
+    if (newVal > 1) {
+      return HasParametersIF::INVALID_VALUE;
+    }
+    parameterWrapper->set(batPriorityParam);
+    if (mode == MODE_ON) {
+      updateBatPriorityOnTxOff = true;
+    } else if (mode == MODE_OFF) {
+      updateBatPriorityFromParam();
+    }
+    return returnvalue::OK;
+  }
+  return HasParametersIF::INVALID_IDENTIFIER_ID;
 }
 
 uint32_t CcsdsIpCoreHandler::getIdentifier() const { return 0; }
@@ -184,8 +206,8 @@ void CcsdsIpCoreHandler::updateLinkState() { linkState = LINK_UP; }
 
 void CcsdsIpCoreHandler::enableTransmit() {
 #ifndef TE0720_1CFA
-  gpioIF->pullHigh(enTxClock);
+  gpioIF->pullHigh(ptmeGpios.enableTxClock);
-  gpioIF->pullHigh(enTxData);
+  gpioIF->pullHigh(ptmeGpios.enableTxData);
 #endif
   linkState = LINK_UP;
 }
@@ -211,14 +233,8 @@ ReturnValue_t CcsdsIpCoreHandler::checkModeCommand(Mode_t mode, Submode_t submod
 }
 
 void CcsdsIpCoreHandler::startTransition(Mode_t mode, Submode_t submode) {
-  auto rateHigh = [&]() {
+  auto rateSet = [&](uint32_t rate) {
-    ReturnValue_t result = ptmeConfig.setRate(RATE_500KBPS);
+    ReturnValue_t result = ptmeConfig.setRate(rate);
-    if (result == returnvalue::OK) {
-      this->mode = HasModesIF::MODE_ON;
-    }
-  };
-  auto rateLow = [&]() {
-    ReturnValue_t result = ptmeConfig.setRate(RATE_100KBPS);
     if (result == returnvalue::OK) {
       this->mode = HasModesIF::MODE_ON;
     }
@@ -228,14 +244,14 @@ void CcsdsIpCoreHandler::startTransition(Mode_t mode, Submode_t submode) {
     if (submode == static_cast<Submode_t>(com::CcsdsSubmode::DATARATE_DEFAULT)) {
       com::Datarate currentDatarate = com::getCurrentDatarate();
       if (currentDatarate == com::Datarate::LOW_RATE_MODULATION_BPSK) {
-        rateLow();
+        rateSet(RATE_100KBPS);
       } else if (currentDatarate == com::Datarate::HIGH_RATE_MODULATION_0QPSK) {
-        rateHigh();
+        rateSet(RATE_500KBPS);
       }
     } else if (submode == static_cast<Submode_t>(com::CcsdsSubmode::DATARATE_HIGH)) {
-      rateHigh();
+      rateSet(RATE_500KBPS);
     } else if (submode == static_cast<Submode_t>(com::CcsdsSubmode::DATARATE_LOW)) {
-      rateLow();
+      rateSet(RATE_100KBPS);
     }
 
   } else if (mode == HasModesIF::MODE_OFF) {
@@ -250,11 +266,16 @@ void CcsdsIpCoreHandler::startTransition(Mode_t mode, Submode_t submode) {
 void CcsdsIpCoreHandler::announceMode(bool recursive) { triggerEvent(MODE_INFO, mode, submode); }
 
 void CcsdsIpCoreHandler::disableTransmit() {
+  ptmeConfig.enableBatPriorityBit(false);
 #ifndef TE0720_1CFA
-  gpioIF->pullLow(enTxClock);
+  gpioIF->pullLow(ptmeGpios.enableTxClock);
-  gpioIF->pullLow(enTxData);
+  gpioIF->pullLow(ptmeGpios.enableTxData);
 #endif
   linkState = LINK_DOWN;
+  if (updateBatPriorityOnTxOff) {
+    updateBatPriorityFromParam();
+    updateBatPriorityOnTxOff = false;
+  }
 }
 
 const char* CcsdsIpCoreHandler::getName() const { return "CCSDS Handler"; }
@@ -270,3 +291,25 @@ ReturnValue_t CcsdsIpCoreHandler::connectModeTreeParent(HasModeTreeChildrenIF& p
 ModeTreeChildIF& CcsdsIpCoreHandler::getModeTreeChildIF() { return *this; }
 
 object_id_t CcsdsIpCoreHandler::getObjectId() const { return SystemObject::getObjectId(); }
+
+void CcsdsIpCoreHandler::enablePrioritySelectMode() {
+  ptmeConfig.enableBatPriorityBit(true);
+  // Reset the PTME
+  gpioIF->pullLow(ptmeGpios.ptmeResetn);
+  gpioIF->pullHigh(ptmeGpios.ptmeResetn);
+}
+
+void CcsdsIpCoreHandler::disablePrioritySelectMode() {
+  ptmeConfig.enableBatPriorityBit(false);
+  // Reset the PTME
+  gpioIF->pullLow(ptmeGpios.ptmeResetn);
+  gpioIF->pullHigh(ptmeGpios.ptmeResetn);
+}
+
+void CcsdsIpCoreHandler::updateBatPriorityFromParam() {
+  if (batPriorityParam == 0) {
+    disablePrioritySelectMode();
+  } else {
+    enablePrioritySelectMode();
+  }
+}

mission/tmtc/CcsdsIpCoreHandler.h

@@ -25,12 +25,25 @@
 #include "linux/ipcore/PtmeConfig.h"
 #include "mission/comDefs.h"
 
+struct PtmeGpios {
+  gpioId_t enableTxClock = gpio::NO_GPIO;
+  gpioId_t enableTxData = gpio::NO_GPIO;
+  gpioId_t ptmeResetn = gpio::NO_GPIO;
+};
+
 /**
  * @brief   This class handles the data exchange with the CCSDS IP cores implemented in the
  *          programmable logic of the Q7S.
  *
- * @details After reboot default CADU bitrate is always set to 100 kbps (results in downlink rate
+ * @details
- *          of 200 kbps due to convolutional code added by syrlinks transceiver)
+ * After reboot default CADU bitrate is always set to 100 kbps (results in downlink rate
+ * of 200 kbps due to convolutional code added by syrlinks transceiver). The IP core handler exposes
+ * a parameter to enable the priority selection mode for the PTME core.
+ *
+ * If the transmitter is on, the selection mode will be enabled when the transmitter goes off.
+ * If the transmitter is off, the update of the PTME will be done immediately on a parameter update.
+ * This is done because changing this parameter requires a reset of the PTME core to avoid bugs
+ * while the transmitter is enabled.
  *
  * @author  J. Meier
  */
@@ -39,11 +52,12 @@ class CcsdsIpCoreHandler : public SystemObject,
                            public ModeTreeChildIF,
                            public ModeTreeConnectionIF,
                            public HasModesIF,
-                           // public AcceptsTelemetryIF,
                            public AcceptsTelecommandsIF,
                            public ReceivesParameterMessagesIF,
                            public HasActionsIF {
  public:
+  enum ParamId : uint8_t { BAT_PRIORITY = 0 };
+
   static const bool LINK_UP = true;
   static const bool LINK_DOWN = false;
   using VcId_t = uint8_t;
@@ -61,8 +75,7 @@ class CcsdsIpCoreHandler : public SystemObject,
    * @param enTxData  GPIO ID of RS485 tx data enable
    */
   CcsdsIpCoreHandler(object_id_t objectId, object_id_t tcDestination, PtmeConfig& ptmeConfig,
-                     std::atomic_bool& linkState, GpioIF* gpioIF, gpioId_t enTxClock,
+                     std::atomic_bool& linkState, GpioIF* gpioIF, PtmeGpios gpioIds);
-                     gpioId_t enTxData);
 
   ~CcsdsIpCoreHandler();
 
@@ -138,15 +151,14 @@ class CcsdsIpCoreHandler : public SystemObject,
   MessageQueueId_t tcDistributorQueueId = MessageQueueIF::NO_QUEUE;
 
   PtmeConfig& ptmeConfig;
+  PtmeGpios ptmeGpios;
+  // BAT priority bit on by default to enable priority selection mode for the PTME.
+  uint8_t batPriorityParam = 1;
+  bool updateBatPriorityOnTxOff = false;
 
   GpioIF* gpioIF = nullptr;
-  // GPIO to enable RS485 transceiver for TX clock
-  gpioId_t enTxClock = gpio::NO_GPIO;
-  // GPIO to enable RS485 transceiver for TX data signal
-  gpioId_t enTxData = gpio::NO_GPIO;
 
   void readCommandQueue(void);
-  void handleTelemetry();
 
   /**
    * @brief    Forward link state to virtual channels.
@@ -163,6 +175,16 @@ class CcsdsIpCoreHandler : public SystemObject,
    *          RS485 transceiver chips to high.
    */
   void disableTransmit();
+
+  /**
+   * The following set of functions configure the mode of the PTME bandwith allocation table (BAT)
+   * module. This consists of the following 2 steps:
+   *   1. Update the BAT priority bit in the PTME wrapper
+   *   2. Reset the PTME as specified in the datasheet.
+   */
+  void enablePrioritySelectMode();
+  void disablePrioritySelectMode();
+  void updateBatPriorityFromParam();
 };
 
 #endif /* CCSDSHANDLER_H_ */