ota: add ota update capabilities

main/ota_handler.h

@@ -0,0 +1,80 @@
+#ifndef OTA_HANDLER_H
+#define OTA_HANDLER_H
+
+#include <stdbool.h>
+#include "esp_err.h"
+
+/**
+ * @brief Initialize OTA handler
+ *
+ * @return esp_err_t ESP_OK on success
+ */
+esp_err_t ota_handler_init(void);
+
+/**
+ * @brief Deinitialize OTA handler
+ *
+ * @return esp_err_t ESP_OK on success
+ */
+esp_err_t ota_handler_deinit(void);
+
+/**
+ * @brief Get current running partition label
+ *
+ * @return const char* Partition label string
+ */
+const char *ota_get_running_partition(void);
+
+/**
+ * @brief Check if OTA update is in progress
+ *
+ * @return true if update in progress
+ */
+bool ota_is_updating(void);
+
+/**
+ * @brief Get OTA update progress percentage
+ *
+ * @return int 0-100 percentage, -1 if not updating
+ */
+int ota_get_progress(void);
+
+/**
+ * @brief Start OTA update from URL
+ *
+ * @param url URL to download firmware from
+ * @return esp_err_t ESP_OK on success
+ */
+esp_err_t ota_start_update(const char *url);
+
+/**
+ * @brief Start OTA update from direct data (for file upload)
+ *
+ * @return esp_err_t ESP_OK on success
+ */
+esp_err_t ota_start_upload(void);
+
+/**
+ * @brief Write data to OTA partition
+ *
+ * @param data Data to write
+ * @param len Length of data
+ * @return esp_err_t ESP_OK on success
+ */
+esp_err_t ota_write_data(const uint8_t *data, size_t len);
+
+/**
+ * @brief Finish OTA upload and apply update
+ *
+ * @return esp_err_t ESP_OK on success
+ */
+esp_err_t ota_finish_upload(void);
+
+/**
+ * @brief Abort ongoing OTA upload
+ *
+ * @return esp_err_t ESP_OK on success
+ */
+esp_err_t ota_abort_upload(void);
+
+#endif // OTA_HANDLER_H