Save file update (incomplete)

src/duskpsp/save/savepsp.h

@@ -0,0 +1,63 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ *
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "save/savefile.h"
+#include <pspiofilemgr.h>
+
+#define SAVE_PSP_PATH_MAX 256
+#define SAVE_PSP_FILE_FORMAT "ms0:/PSP/SAVEDATA/%s%02u/save.dat"
+#define SAVE_PSP_DIR_FORMAT "ms0:/PSP/SAVEDATA/%s%02u"
+
+#ifndef SAVE_PSP_TITLE_ID
+  #define SAVE_PSP_TITLE_ID "DUSK00001"
+#endif
+
+typedef struct {
+  uint8_t unused;
+} savepsp_t;
+
+/**
+ * Initializes the save system on PSP.
+ *
+ * @return An error code if initialization fails.
+ */
+errorret_t saveInitPSP(void);
+
+/**
+ * Disposes of the save system on PSP.
+ *
+ * @return An error code if disposal fails.
+ */
+errorret_t saveDisposePSP(void);
+
+/**
+ * Loads a save file from PSP save data for the given slot.
+ *
+ * @param slot The save slot index.
+ * @param file Output save file data.
+ * @return An error code if the load fails.
+ */
+errorret_t saveLoadPSP(const uint8_t slot, savefile_t *file);
+
+/**
+ * Writes a save file to PSP save data for the given slot.
+ *
+ * @param slot The save slot index.
+ * @param file Save file data to write.
+ * @return An error code if the write fails.
+ */
+errorret_t saveWritePSP(const uint8_t slot, const savefile_t *file);
+
+/**
+ * Deletes the save file for the given slot from PSP save data.
+ *
+ * @param slot The save slot index.
+ * @return An error code if the delete fails.
+ */
+errorret_t saveDeletePSP(const uint8_t slot);