Load settings from SD card.

src/drivers/devices/esp32CAM.h

@@ -2,8 +2,15 @@
 #define _ESP32CAM_H_
 
 #define PIN_BUTTON_1 0
-#define LED_PIN 2
+#define LED_PIN 33
 
 #define NO_DISPLAY
 
+#define SDMMC_CLK 14
+#define SDMMC_CMD 15
+#define SDMMC_D0 2
+#define SDMMC_D1 4
+#define SDMMC_D2 12
+#define SDMMC_D3 13
+
 #endif // _ESP32_CAM_H_

src/drivers/memoryCard/SDCard.h

@@ -0,0 +1,121 @@
+#ifndef _SDCARD_H_
+#define _SDCARD_H_
+
+#include <FS.h>
+#include <SD_MMC.h>
+#include <SD.h>
+
+#include <ArduinoJson.h>
+
+#include "..\drivers.h"
+#include "..\storage.h"
+#include "..\SPIStorage\SPIStorage.h"
+
+#define JSON_CONFIG_FILE "/config.json"
+
+class SDCard
+{
+private:
+    bool cardInitialized_;
+public:
+    SDCard()
+    {
+        cardInitialized_ = initSDcard();
+    }
+
+    ~SDCard()
+    {
+        if (cardInitialized_)
+            SD_MMC.end();
+    }
+
+    bool initSDcard()
+    {
+        if (cardInitialized_)
+            return cardInitialized_;
+
+        bool oneBitMode = true;
+#if defined (SDMMC_D0) && defined (SDMMC_D1) && defined (SDMMC_D2) && defined (SDMMC_D3)
+        if (SD_MMC.cardType() == CARD_NONE)
+            SD_MMC.setPins(SDMMC_CLK, SDMMC_CMD, SDMMC_D0, SDMMC_D1, SDMMC_D2, SDMMC_D3);
+        oneBitMode = false;
+#elif defined (SDMMC_D0) && !(defined (SDMMC_D1) && defined (SDMMC_D2) && defined (SDMMC_D3))
+        if (SD_MMC.cardType() == CARD_NONE)
+            SD_MMC.setPins(SDMMC_CLK, SDMMC_CMD, SDMMC_D0);
+#else
+        Serial.println("SD card interface not available.");
+        return false;
+#endif // dataPinsDefined
+
+        if ((!SD_MMC.begin("/sdcard", oneBitMode)) || (SD_MMC.cardType() == CARD_NONE))
+        {
+            Serial.println("No card available.");
+            return false;
+        }
+        return true;
+    }
+
+    TSettings loadConfigFile()
+    {
+        // Load existing configuration file
+        // Read configuration from FS json
+        Serial.println("Mounting SD card...");
+        TSettings Settings;
+
+        if (initSDcard())
+        {
+            Serial.println("mounted SD card.");
+            if (SD_MMC.exists(JSON_CONFIG_FILE))
+            {
+                // The file exists, reading and loading
+                Serial.println("reading config file from sd.");
+                File configFile = SD_MMC.open(JSON_CONFIG_FILE, "r");
+                if (configFile)
+                {
+                    Serial.println("Opened configuration file");
+                    StaticJsonDocument<512> json;
+                    DeserializationError error = deserializeJson(json, configFile);
+                    configFile.close();
+                    serializeJsonPretty(json, Serial);
+                    if (!error)
+                    {
+                        Serial.println("Parsing JSON");
+                        strcpy(Settings.WifiSSID, json["SSID"]);
+                        strcpy(Settings.WifiPW, json["Password"]);
+                        strcpy(Settings.PoolAddress, json["PoolURL"]);
+                        strcpy(Settings.BtcWallet, json["WalletID"]);
+                        Settings.PoolPort = json["Port"].as<int>();
+                        Settings.Timezone = json["Timezone"].as<int>();
+                        Settings.holdsData = true;
+                    }
+                    else
+                    {
+                        // Error loading JSON data
+                        Serial.println("Failed to load json config");
+                    }
+                }
+                SD_MMC.end();
+            }
+        }
+        else
+        {
+            // Error mounting file system
+            Serial.println("Failed to mount SD card.");
+        }
+        return Settings;
+    }
+
+    void SD2SPIStorage(SPIStorage* spifs)
+    {
+        TSettings Settings = loadConfigFile();
+        if (Settings.holdsData)
+        {
+            spifs->saveConfigFile(&Settings);
+            WiFi.begin(Settings.WifiSSID, Settings.WifiPW);
+            Serial.println("Settings copied from SD card. Rebooting now.");
+            ESP.restart();
+        }
+    }
+};
+
+#endif // _SDCARD_H_

src/wManager.cpp

@@ -8,7 +8,7 @@
 #include "wManager.h"
 #include "monitor.h"
 #include "drivers/display.h"
-
+#include "drivers/memoryCard/SDCard.h"
 #include "drivers/SPIStorage/SPIStorage.h"
 #include "drivers/storage.h"
 
@@ -96,9 +96,14 @@ void init_WifiManager()
     Settings = SPIFS.loadConfigFile();
     if (!Settings.holdsData)
     {
-        Serial.println(F("Forcing config mode as there is no saved config"));
+        SDCard sdc;
+        if (sdc.loadConfigFile().holdsData)
+        {
+            Serial.println(F("No config file on internal flash, force config mode."));
+            sdc.SD2SPIStorage(&SPIFS); // reboot on success.
             forceConfig = true;
         };
+    };
 
     // Reset settings (only for development)
     //wm.resetSettings();