[FL-2269] Core2 OTA (#1144)

* C2OTA: wip
* Update Cube to 1.13.3
* Fixed prio
* Functional Core2 updater
* Removed hardware CRC usage; code cleanup & linter fixes
* Moved hardcoded stack params to copro.mk
* Fixing CI bundling of core2 fw
* Removed last traces of hardcoded radio stack
* OB processing draft
* Python scripts cleanup
* Support for comments in ob data
* Sacrificed SD card icon in favor of faster update. Waiting for Storage fix
* Additional handling for OB mismatched values
* Description for new furi_hal apis; spelling fixes
* Rework of OB write, WIP
* Properly restarting OB verification loop
* Split update_task_workers.c
* Checking OBs after enabling post-update mode
* Moved OB verification before flashing
* Removed ob.data for custom stacks
* Fixed progress calculation for OB
* Removed unnecessary OB mask cast

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

lib/toolbox/crc32_calc.c

@@ -0,0 +1,38 @@
+#include "crc32_calc.h"
+#include <littlefs/lfs_util.h>
+
+#define CRC_DATA_BUFFER_MAX_LEN 512
+
+uint32_t crc32_calc_buffer(uint32_t crc, const void* buffer, size_t size) {
+    // TODO: consider removing dependency on LFS
+    return ~lfs_crc(~crc, buffer, size);
+}
+
+uint32_t crc32_calc_file(File* file, const FileCrcProgressCb progress_cb, void* context) {
+    furi_check(storage_file_is_open(file) && storage_file_seek(file, 0, true));
+
+    uint32_t file_crc = 0;
+
+    uint8_t* data_buffer = malloc(CRC_DATA_BUFFER_MAX_LEN);
+    uint16_t data_buffer_valid_len;
+
+    uint32_t file_size = storage_file_size(file);
+
+    /* Feed file contents per sector into CRC calc */
+    for(uint32_t fptr = 0; fptr < file_size;) {
+        data_buffer_valid_len = storage_file_read(file, data_buffer, CRC_DATA_BUFFER_MAX_LEN);
+        if(data_buffer_valid_len == 0) {
+            break;
+        }
+        fptr += data_buffer_valid_len;
+
+        if(progress_cb && (fptr % CRC_DATA_BUFFER_MAX_LEN == 0)) {
+            progress_cb(fptr * 100 / file_size, context);
+        }
+
+        file_crc = crc32_calc_buffer(file_crc, data_buffer, data_buffer_valid_len);
+    }
+    free(data_buffer);
+
+    return file_crc;
+}

lib/toolbox/crc32_calc.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <stdint.h>
+#include <storage/storage.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+uint32_t crc32_calc_buffer(uint32_t crc, const void* buffer, size_t size);
+
+typedef void (*FileCrcProgressCb)(const uint8_t progress, void* context);
+
+uint32_t crc32_calc_file(File* file, const FileCrcProgressCb progress_cb, void* context);
+
+#ifdef __cplusplus
+}
+#endif