File upload. Yeah

firmware/libs/fs_mgmt/include/fs_mgmt.h

@@ -2,25 +2,41 @@
 #define FS_MGMT_H
 
 #include <zephyr/fs/fs.h>
+#include "buzz_proto.h"
 
 #define FS_MGMT_MAX_PATH_LENGTH 32
-#define FS_AUDIO_PATH CONFIG_FS_MGMT_MOUNT_POINT "/a"
-#define FS_SYSTEM_PATH CONFIG_FS_MGMT_MOUNT_POINT "/sys"
+#define FS_AUDIO_PATH CONFIG_FS_MGMT_MOUNT_POINT CONFIG_FS_MGMT_AUDIO_SUBDIR
+#define FS_SYSTEM_PATH CONFIG_FS_MGMT_MOUNT_POINT CONFIG_FS_MGMT_SYSTEM_SUBDIR
 
 /**
  * @brief Initializes the filesystem management module.
  */
 int fs_mgmt_init(void);
 
-// /**
-//  * @brief Puts the QSPI flash into deep sleep mode to save power
-//  */
-// int fs_pm_flash_suspend(void);
 
-// /**
-//  * @brief Resumes the QSPI flash from deep sleep mode
-//  */
-// int fs_pm_flash_resume(void);
+/**
+ * @brief OP-Codes for the FS write thread
+ */
+enum fs_write_op {
+    FS_WRITE_OP_FILE_START,
+    FS_WRITE_OP_FILE_CHUNK,
+    FS_WRITE_OP_FILE_END,
+    FS_WRITE_OP_TAGS_START,   // Schon mal vorgesehen
+    FS_WRITE_OP_FW_START,     // Schon mal vorgesehen
+    FS_WRITE_OP_ABORT
+};
+
+/**
+ * @brief Structure representing a write message for the FS write thread
+ */
+struct fs_write_msg {
+    enum fs_write_op op;
+    uint8_t *slab_ptr;                /* Basis-Pointer des Memory-Slabs (für k_mem_slab_free) */
+    uint16_t data_offset;             /* Offset ab dem slab_ptr, wo die Nutzdaten beginnen */
+    uint16_t data_len;                /* Länge der Nutzdaten */
+    uint32_t metadata;                /* Zusatzinfo (Start: erwartete Dateigröße, End: erwartete CRC32) */
+    buzz_transport_reply_fn reply_cb; /* Callback für ACKs / Success / Error */
+};
 
 /**
  * @brief Wrapper around fs_open that handles power management for the flash
@@ -114,4 +130,18 @@ int fs_mgmt_pm_mkdir_recursive(char *path);
  */
 int fs_mgmt_pm_rm_recursive(char *path, size_t max_len);
 
+/**
+ * @brief Gets the length of the audio data in a file, accounting for any metadata tags, ensuring the flash is active during the operation
+ * @param fp Pointer to an open fs_file_t structure representing the file
+ * @return Length of the audio data on success, negative error code on failure
+ */
+ssize_t fs_get_audio_data_len(struct fs_file_t *fp);
+
+/**
+ * @brief Submits a write message to the FS write thread, which will handle writing data to the filestem asynchronously, ensuring the flash is active during the operation
+ * @param msg Pointer to the fs_write_msg structure containing the write operation details
+ * @return 0 on success, negative error code on failure
+ */
+int fs_mgmt_submit_write(struct fs_write_msg *msg);
+
 #endif /* FS_MGMT_H */