bsp_q7s/boardconfig/q7sConfig.h.in

@@ -13,7 +13,7 @@
 // Set to Q7S_COLD_REDUNDANT: On startup, get the prefered SD card, turn it on and mount it, and 
 //     turn off the second SD card if it is on
 // Set to Q7S_HOT_REDUNDANT: On startup, turn on both SD cards and mount them  
-#define Q7S_SD_CARD_CONFIG              1
+#define Q7S_SD_CARD_CONFIG              Q7S_SD_COLD_REDUNDANT
 
 #define Q7S_ADD_RTD_DEVICES             0
 

bsp_q7s/core/CoreController.cpp

@@ -37,14 +37,16 @@ ReturnValue_t CoreController::sdCardInit() {
     sif::info << "No SD card initialization will be performed" << std::endl;
     return HasReturnvaluesIF::RETURN_OK;
 #else
-    // Creator or update status file
+    SdCardManager* sdcMan = SdCardManager::instance();
-    ReturnValue_t result = SdCardManager::instance()->updateSdCardStateFile();
+
+    // Create update status file
+    ReturnValue_t result = sdcMan->updateSdCardStateFile();
     if(result != HasReturnvaluesIF::RETURN_OK) {
         sif::warning << "CoreController::initialize: Updating SD card state file failed"
                 << std::endl;
     }
 
-    SdCardManager* sdcMan = SdCardManager::instance();
+
     auto sdStatus = std::pair<sd::SdStatus, sd::SdStatus>(sd::SdStatus::OFF, sd::SdStatus::OFF);
     result = sdcMan->getSdCardActiveStatus(sdStatus);
     if(result != HasReturnvaluesIF::RETURN_OK) {
@@ -113,15 +115,17 @@ ReturnValue_t CoreController::sdCardInit() {
     if(result != HasReturnvaluesIF::RETURN_OK) {
         sif::warning << "Switching off SD card " << otherString << " failed" << std::endl;
     }
+    // Update status file
+    sdcMan->updateSdCardStateFile();
     return HasReturnvaluesIF::RETURN_OK;
 #elif Q7S_SD_CARD_CONFIG == Q7S_SD_HOT_REDUNDANT
     sif::info << "Hot redundant SD card configuration" << std::endl;
 
     // Use a lambda to avoid duplicate code
-    auto setUpSdCard = [sdcMan](sd::SdCard sdCard, sd::SdStatus status, std::string sdString) {
+    auto setUpSdCard = [&](sd::SdCard sdCard, sd::SdStatus status, std::string sdString) {
         if(status == sd::SdStatus::OFF) {
             sif::info << "Switching on and mounting SD card " << sdString << std::endl;
-            sdcMan->switchOnSdCard(sdCard, true);
+            sdcMan->switchOnSdCard(sdCard, true, &sdStatus);
         }
         else if(status == sd::SdStatus::ON) {
             sif::info << "Mounting SD card " << sdString << std::endl;
@@ -134,6 +138,8 @@ ReturnValue_t CoreController::sdCardInit() {
 
     setUpSdCard(sd::SdCard::SLOT_0, sdStatus.first, "0");
     setUpSdCard(sd::SdCard::SLOT_1, sdStatus.second, "1");
+    // Update status file
+    sdcMan->updateSdCardStateFile();
     return HasReturnvaluesIF::RETURN_OK;
 #endif
 

bsp_q7s/memory/SdCardManager.cpp

@@ -28,23 +28,34 @@ SdCardManager* SdCardManager::instance() {
     return SdCardManager::factoryInstance;
 }
 
-ReturnValue_t SdCardManager::switchOnSdCard(sd::SdCard sdCard, bool doMountSdCard) {
+ReturnValue_t SdCardManager::switchOnSdCard(sd::SdCard sdCard, bool doMountSdCard,
-    std::pair<sd::SdStatus, sd::SdStatus> active;
+        SdStatusPair* statusPair) {
-    ReturnValue_t result = getSdCardActiveStatus(active);
+    ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
+    if(statusPair == nullptr) {
+        statusPair = std::make_unique<SdStatusPair>().get();
+        result = getSdCardActiveStatus(*statusPair);
+        if(result != HasReturnvaluesIF::RETURN_OK) {
+            return result;
+        }
+    }
+
     // Not allowed, this function turns on one SD card
     if(sdCard == sd::SdCard::BOTH) {
         sif::warning << "SdCardManager::switchOffSdCard: API does not allow sd::SdStatus::BOTH"
                 << std::endl;
         return HasReturnvaluesIF::RETURN_FAILED;
     }
-    if(result != HasReturnvaluesIF::RETURN_OK) {
+
-        return result;
+    sd::SdStatus targetStatus;
-    }
     if(sdCard == sd::SdCard::SLOT_0) {
-        if(active.first == sd::SdStatus::MOUNTED) {
+        targetStatus = statusPair->first;
-            return ALREADY_MOUNTED;
     }
-        else if(active.first == sd::SdStatus::ON) {
+    else if(sdCard == sd::SdCard::SLOT_1) {
+        targetStatus = statusPair->second;
+    }
+
+    auto switchCall = [&]() {
+        if(targetStatus == sd::SdStatus::ON) {
             if(not doMountSdCard) {
                 return ALREADY_ON;
             }
@@ -52,14 +63,19 @@ ReturnValue_t SdCardManager::switchOnSdCard(sd::SdCard sdCard, bool doMountSdCar
                 return mountSdCard(sdCard);
             }
         }
+        else if(targetStatus == sd::SdStatus::MOUNTED) {
+            return ALREADY_MOUNTED;
+        }
+        else if(targetStatus == sd::SdStatus::OFF) {
+            return setSdCardState(sdCard, true);
+        }
+        else {
+            return HasReturnvaluesIF::RETURN_FAILED;
+        }
+    };
+
+    result = switchCall();
 
-    }
-    else if(sdCard == sd::SdCard::SLOT_1) {
-        if(active.second == sd::SdStatus::ON or active.second == sd::SdStatus::MOUNTED) {
-            return ALREADY_ON;
-        }
-    }
-    result = setSdCardState(sdCard, true);
     if(result != HasReturnvaluesIF::RETURN_OK or not doMountSdCard) {
         return result;
     }
@@ -67,7 +83,8 @@ ReturnValue_t SdCardManager::switchOnSdCard(sd::SdCard sdCard, bool doMountSdCar
     return mountSdCard(sdCard);
 }
 
-ReturnValue_t SdCardManager::switchOffSdCard(sd::SdCard sdCard, bool doUnmountSdCard) {
+ReturnValue_t SdCardManager::switchOffSdCard(sd::SdCard sdCard, bool doUnmountSdCard,
+        SdStatusPair* statusPair) {
     std::pair<sd::SdStatus, sd::SdStatus> active;
     ReturnValue_t result = getSdCardActiveStatus(active);
     if(result != HasReturnvaluesIF::RETURN_OK) {
@@ -127,7 +144,7 @@ ReturnValue_t SdCardManager::setSdCardState(sd::SdCard sdCard, bool on) {
     return SYSTEM_CALL_ERROR;
 }
 
-ReturnValue_t SdCardManager::getSdCardActiveStatus(std::pair<sd::SdStatus, sd::SdStatus>& active) {
+ReturnValue_t SdCardManager::getSdCardActiveStatus(SdStatusPair& active) {
     using namespace std;
     if(not filesystem::exists(SD_STATE_FILE)) {
         return STATUS_FILE_NEXISTS;
@@ -162,7 +179,7 @@ ReturnValue_t SdCardManager::mountSdCard(sd::SdCard sdCard) {
         mountPoint = SD_0_MOUNT_POINT;
     }
     else if(sdCard == sd::SdCard::SLOT_1) {
-        mountDev = SD_0_DEV_NAME;
+        mountDev = SD_1_DEV_NAME;
         mountPoint = SD_1_MOUNT_POINT;
     }
     if(not filesystem::exists(mountDev)) {

bsp_q7s/memory/SdCardManager.h

@@ -19,6 +19,8 @@ class MutexIF;
 class SdCardManager {
     friend class SdCardAccess;
 public:
+    using SdStatusPair = std::pair<sd::SdStatus, sd::SdStatus>;
+
     static constexpr uint8_t INTERFACE_ID = CLASS_ID::SD_CARD_MANAGER;
 
     static constexpr ReturnValue_t ALREADY_ON =
@@ -63,20 +65,24 @@ public:
      * @param sdCard
      * @param doMountSdCard     Mount the SD card after switching it on, which is necessary
      *                          to use it
+     * @param statusPair        If the status pair is already available, it can be passed here
      * @return - RETURN_OK on success, ALREADY_ON if it is already on,
      *           SYSTEM_CALL_ERROR on system error
      */
-    ReturnValue_t switchOnSdCard(sd::SdCard sdCard, bool doMountSdCard = true);
+    ReturnValue_t switchOnSdCard(sd::SdCard sdCard, bool doMountSdCard = true,
+            SdStatusPair* statusPair = nullptr);
 
     /**
      * Switch off the specified SD card.
      * @param sdCard
      * @param doUnmountSdCard   Unmount the SD card before switching the card off, which makes
      *                          the operation safer
+     * @param statusPair        If the status pair is already available, it can be passed here
      * @return - RETURN_OK on success, ALREADY_ON if it is already on,
      *           SYSTEM_CALL_ERROR on system error
      */
-    ReturnValue_t switchOffSdCard(sd::SdCard sdCard, bool doUnmountSdCard = true);
+    ReturnValue_t switchOffSdCard(sd::SdCard sdCard, bool doUnmountSdCard = true,
+            SdStatusPair* statusPair = nullptr);
 
     /**
      * Update the state file or creates one if it does not exist. You need to call this
@@ -97,7 +103,7 @@ public:
      *           should call #updateSdCardStateFile again in that case
      *         - STATUS_FILE_NEXISTS if the status file does not exist
      */
-    ReturnValue_t getSdCardActiveStatus(std::pair<sd::SdStatus, sd::SdStatus>& active);
+    ReturnValue_t getSdCardActiveStatus(SdStatusPair& active);
 
     /**
      * Mount the specified SD card. This is necessary to use it.
@@ -120,8 +126,8 @@ private:
 
     sd::SdCard preferredSdCard = sd::SdCard::SLOT_0;
 
-    void processSdStatusLine(std::pair<sd::SdStatus, sd::SdStatus>& active,
+    void processSdStatusLine(SdStatusPair& active, std::string& line, uint8_t& idx,
-            std::string& line, uint8_t& idx, sd::SdCard& currentSd);
+            sd::SdCard& currentSd);
 
     static SdCardManager* factoryInstance;
 };