add new qloud-c-sdk component

components/connectivity/iot-hub-device-c-sdk/app/ota/ota_firmware_save.c

@@ -0,0 +1,141 @@
+/**
+ * @copyright
+ *
+ * Tencent is pleased to support the open source community by making IoT Hub available.
+ * Copyright(C) 2018 - 2021 THL A29 Limited, a Tencent company.All rights reserved.
+ *
+ * Licensed under the MIT License(the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://opensource.org/licenses/MIT
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is
+ * distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * @file ota_firmware_save.c
+ * @brief
+ * @author fancyxu (fancyxu@tencent.com)
+ * @version 1.0
+ * @date 2021-10-20
+ *
+ * @par Change Log:
+ * <table>
+ * <tr><th>Date       <th>Version <th>Author    <th>Description
+ * <tr><td>2021-10-20 <td>1.0     <td>fancyxu   <td>first commit
+ * </table>
+ */
+
+#include "ota_firmware_save.h"
+
+#include "utils_log.h"
+
+#define OTA_FILE_PATH             "./app_ota_fw.bin"
+#define OTA_BREAK_POINT_FILE_PATH "./break_point.dat"
+
+/**
+ * @brief Read ota break point from file.
+ *
+ * @param[out] buf data to read
+ * @param[in] buf_len data buffer len
+ * @return > 0 for read len, -1 for fail
+ */
+int ota_break_point_read(uint8_t *buf, uint32_t buf_len)
+{
+    FILE *fp = fopen(OTA_BREAK_POINT_FILE_PATH, "rb");
+    if (!fp) {
+        fp = fopen(OTA_BREAK_POINT_FILE_PATH, "wb+");
+        if (!fp) {
+            Log_e("create file failed");
+            return -1;
+        }
+    }
+
+    int ret = fread(buf, 1, buf_len, fp);
+    fclose(fp);
+    return ret;
+}
+
+/**
+ * @brief Write ota break point to file.
+ *
+ * @param[in] data break point data to write
+ * @param[in] data_len data length
+ * @return 0 for success
+ */
+int ota_break_point_write(const uint8_t *data, uint32_t data_len)
+{
+    FILE *fp = fopen(OTA_BREAK_POINT_FILE_PATH, "wb+");
+    if (!fp) {
+        Log_e("open file failed");
+        return -1;
+    }
+    fwrite(data, 1, data_len, fp);
+    fclose(fp);
+    return 0;
+}
+
+/**
+ * @brief Read firmware from file.
+ *
+ * @param[out] buf data to read
+ * @param[in] buf_len data buffer len
+ * @param[in] offset offset of file
+ * @return > 0 for read len, -1 for fail
+ */
+int ota_firmware_read(uint8_t *buf, uint32_t buf_len, uint32_t offset)
+{
+    int   ret = -1;
+    FILE *fp  = fopen(OTA_FILE_PATH, "rb");
+    if (!fp) {
+        fp = fopen(OTA_FILE_PATH, "wb+");
+        if (!fp) {
+            Log_e("create file failed");
+            return -1;
+        }
+    }
+    ret = fseek(fp, offset, SEEK_SET);
+    if (!ret) {
+        ret = fread(buf, 1, buf_len, fp);
+    }
+    fclose(fp);
+    return ret;
+}
+
+/**
+ * @brief Write firmware to file.
+ *
+ * @param[in] data firmware data to write
+ * @param[in] data_len data length
+ * @param[in] offset offset of file
+ * @return 0 for success
+ */
+int ota_firmware_write(uint8_t *data, uint32_t data_len, uint32_t offset)
+{
+    int   ret = -1;
+    FILE *fp  = fopen(OTA_FILE_PATH, "rb+");
+    if (!fp) {
+        fp = fopen(OTA_FILE_PATH, "wb+");
+        if (!fp) {
+            Log_e("create file failed");
+            return -1;
+        }
+    }
+    ret = fseek(fp, offset, SEEK_SET);
+    if (!ret) {
+        fwrite(data, 1, data_len, fp);
+    }
+    fclose(fp);
+    return 0;
+}
+
+/**
+ * @brief Finish write firmware.
+ *
+ * @param[in] total_len total length of firmware
+ * @return 0 for success
+ */
+int ota_firmware_finish(uint32_t total_len)
+{
+    return 0;
+}