commit c40f653e2d8ebec4a04696732a8022f9addeea40
Author: cfif <cham-zod@mail.ru>
Date:   Wed Dec 4 13:10:48 2024 +0300

    Init

diff --git a/Inc/StorageOnFlashNation.h b/Inc/StorageOnFlashNation.h
new file mode 100644
index 0000000..a3d973b
--- /dev/null
+++ b/Inc/StorageOnFlashNation.h
@@ -0,0 +1,27 @@
+//
+// Created by cfif on 07.10.22.
+//
+
+#ifndef STORAGE_ON_FLASH_NATION_H
+#define STORAGE_ON_FLASH_NATION_H
+
+#include "n32g45x.h"
+#include "stddef.h"
+#include "StorageIO.h"
+
+typedef struct {
+    uint32_t mainFlashPageAddress;
+    uint32_t recoveryFlashPageAddress;
+} tStorageOnFlashNation;
+
+void vStorageOnFlashNation_Init(
+        tStorageOnFlashNation *env,
+        uint32_t mainPage,
+        uint32_t recoveryPage
+);
+
+
+tStorageInterface xStorageOnFlashNation_GetInterface(tStorageOnFlashNation *env);
+
+
+#endif //STORAGE_ON_FLASH_NATION_H
diff --git a/Src/StorageOnFlashNation.c b/Src/StorageOnFlashNation.c
new file mode 100644
index 0000000..192e329
--- /dev/null
+++ b/Src/StorageOnFlashNation.c
@@ -0,0 +1,140 @@
+//
+// Created by cfif on 07.10.22.
+//
+#include <SystemDelayInterface.h>
+#include "InternalFlashPage.h"
+#include "StorageOnFlashNation.h"
+
+static uint32_t xStorageOnFlashNation_Crc(uint8_t *data, size_t len) {
+    uint32_t crc = 0;
+
+    uint8_t *end = data + len;
+    while (data < end) {
+        crc += *data;
+        ++data;
+    }
+
+    return crc;
+}
+
+static uint32_t xStorageOnFlashNation_CrcFlash(uint8_t *addressOnFlash, size_t len) {
+    uint32_t crc = 0;
+
+    size_t left = len;
+    uint8_t *end = addressOnFlash + len;
+
+    uint32_t word;
+    while (addressOnFlash < end) {
+        word = iInternalFlashPage_ReadWord((uint32_t) addressOnFlash);
+
+        for (uint8_t sub_byte = 0; (sub_byte < 4) && (left); ++sub_byte) {
+            crc += ((uint8_t *) &word)[sub_byte];
+            --left;
+        }
+        addressOnFlash += 4;
+    }
+
+    return crc;
+}
+
+static eStorageStatus
+xStorageOnFlashNation_DumpOn(
+        tStorageOnFlashNation *env,
+        uint32_t dataCrc,
+        uint32_t pageAddress,
+        void *data,
+        size_t size
+) {
+
+//    if (!bInternalFlashPage_Clear(pageAddress)) {
+//        return STORAGE_ERR_DEVICE;
+//    }
+//
+//    size_t dataSizeOnFlash = sInternalFlashPage_Write(pageAddress, 0x0, env->data, env->size);
+
+    size_t dataSizeOnFlash = bInternalFlashPage_DumpFromRam(pageAddress, data, size);
+
+    if (dataSizeOnFlash < size) {
+        return STORAGE_ERR_DEVICE;
+    }
+
+    if (sInternalFlashPage_Write(pageAddress, dataSizeOnFlash, (uint8_t *) &dataCrc, 4) != 4) {
+        return STORAGE_ERR_DEVICE;
+    }
+
+    uint32_t flashCalcCrc = xStorageOnFlashNation_CrcFlash((uint8_t *) pageAddress, size);
+    uint32_t flashReedCrc = iInternalFlashPage_ReadWord(pageAddress + dataSizeOnFlash);
+
+    if ((flashCalcCrc == flashReedCrc) && (flashCalcCrc == dataCrc)) {
+        return STORAGE_OK;
+    } else {
+        return STORAGE_ERR_DATA;
+    }
+
+}
+
+static uint8_t xStorageOnFlashNation_Dump(tStorageOnFlashNation *env, void *data, size_t size) {
+
+    uint32_t crc = xStorageOnFlashNation_Crc(data, size);
+
+    if (xStorageOnFlashNation_DumpOn(env, crc, env->recoveryFlashPageAddress, data, size) != STORAGE_OK) {
+        return STORAGE_ERR_DEVICE;
+    }
+
+    if (xStorageOnFlashNation_DumpOn(env, crc, env->mainFlashPageAddress, data, size) != STORAGE_OK) {
+        return STORAGE_ERR_DEVICE;
+    }
+
+    return STORAGE_OK;
+}
+
+
+eStorageStatus xStorageOnFlashNation_Load(tStorageOnFlashNation *env, void *data, size_t size) {
+
+    size_t dataSizeOnFlash = (size + 3) & (~3); // выравниваем до кратного 4 (целое количество слов)
+
+    uint32_t recoveryCrcCalc = xStorageOnFlashNation_CrcFlash((uint8_t *) env->recoveryFlashPageAddress, size);
+    uint32_t recoveryCrcReed = iInternalFlashPage_ReadWord(env->recoveryFlashPageAddress + dataSizeOnFlash);
+
+    uint32_t mainCrcCalc = xStorageOnFlashNation_CrcFlash((uint8_t *) env->mainFlashPageAddress, size);
+    uint32_t mainCrcReed = iInternalFlashPage_ReadWord(env->mainFlashPageAddress + dataSizeOnFlash);
+
+    bool recoveryCrcOk = (recoveryCrcCalc == recoveryCrcReed);
+    bool mainCrcOk = (mainCrcReed == mainCrcCalc);
+
+    if (recoveryCrcOk && mainCrcOk) {
+        if (recoveryCrcReed == mainCrcReed) {
+            sInternalFlashPage_Read(env->mainFlashPageAddress, 0x0, data, size);
+            return STORAGE_OK;
+        } else {
+            sInternalFlashPage_Read(env->recoveryFlashPageAddress, 0x0, data, size);
+            return xStorageOnFlashNation_DumpOn(env, recoveryCrcCalc, env->mainFlashPageAddress, data, size);
+        }
+    } else if (recoveryCrcOk || mainCrcOk) {
+        if (recoveryCrcOk) {
+            sInternalFlashPage_Read(env->recoveryFlashPageAddress, 0x0, data, size);
+            return xStorageOnFlashNation_DumpOn(env, recoveryCrcCalc, env->mainFlashPageAddress, data, size);
+        } else {
+            sInternalFlashPage_Read(env->mainFlashPageAddress, 0x0, data, size);
+            return xStorageOnFlashNation_DumpOn(env, mainCrcCalc, env->recoveryFlashPageAddress, data, size);
+        }
+    } else {
+        return STORAGE_ERR_DATA;
+    }
+
+}
+
+void vStorageOnFlashNation_Init(
+        tStorageOnFlashNation *env, uint32_t mainPage, uint32_t recoveryPage
+) {
+    env->mainFlashPageAddress = mainPage;
+    env->recoveryFlashPageAddress = recoveryPage;
+}
+
+tStorageInterface xStorageOnFlashNation_GetInterface(tStorageOnFlashNation *env) {
+    return (tStorageInterface) {
+            .env = env,
+            .load = (StorageIOTransaction) xStorageOnFlashNation_Load,
+            .dump = (StorageIOTransaction) xStorageOnFlashNation_Dump,
+    };
+}
\ No newline at end of file
diff --git a/modular.json b/modular.json
new file mode 100644
index 0000000..f0f0010
--- /dev/null
+++ b/modular.json
@@ -0,0 +1,22 @@
+{
+  "dep": [
+    {
+      "type": "git",
+      "provider": "NAVIGATOR_UVEOS_NATION_TELIT",
+      "repo": "StorageInterface"
+    },
+    {
+      "type": "git",
+      "provider": "NAVIGATOR_UVEOS_NATION_TELIT",
+      "repo": "NATION_N32G45X_InternalFlashPage"
+    }
+  ],
+  "cmake": {
+    "inc_dirs": [
+      "Inc"
+    ],
+    "srcs": [
+      "Src/**.c"
+    ]
+  }
+}
\ No newline at end of file