From 7cb4fe0944b839f28dfd96a88a772cd6a8b58019 Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Thu, 2 Nov 2023 17:16:25 -0600
Subject: reorganized project files (part 1) (just moved files, didn't change
 the contents yet,  and nothing will work without updating #includes and build
 scripts and stuff)

---
 fsm/eeprom.h | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 fsm/eeprom.h

(limited to 'fsm/eeprom.h')

diff --git a/fsm/eeprom.h b/fsm/eeprom.h
new file mode 100644
index 0000000..440d2b3
--- /dev/null
+++ b/fsm/eeprom.h
@@ -0,0 +1,52 @@
+// fsm-eeprom.h: EEPROM API for SpaghettiMonster.
+// Copyright (C) 2017-2023 Selene ToyKeeper
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <avr/eeprom.h>
+
+// set this higher to enable normal eeprom functions
+#ifndef EEPROM_BYTES
+#define EEPROM_BYTES 0
+#endif
+
+// set this higher to enable wear-levelled eeprom functions
+#ifndef EEPROM_WL_BYTES
+#define EEPROM_WL_BYTES 0
+#endif
+
+#ifdef USE_EEPROM
+// this fails when EEPROM_BYTES is a sizeof()
+//#if EEPROM_BYTES >= (EEPSIZE/2)
+//#error Requested EEPROM_BYTES too big.
+//#endif
+#ifdef EEPROM_OVERRIDE
+uint8_t *eeprom;
+#else
+uint8_t eeprom[EEPROM_BYTES];
+#endif
+uint8_t load_eeprom();  // returns 1 for success, 0 for no data found
+void save_eeprom();
+#define EEP_START (EEPSIZE/2)
+#endif
+
+#ifdef USE_EEPROM_WL
+#if EEPROM_WL_BYTES >= (EEPSIZE/4)
+#error Requested EEPROM_WL_BYTES too big.
+#endif
+uint8_t eeprom_wl[EEPROM_WL_BYTES];
+uint8_t load_eeprom_wl();  // returns 1 for success, 0 for no data found
+void save_eeprom_wl();
+#define EEP_WL_SIZE (EEPSIZE/2)
+#endif
+
+#if EEPSIZE > 256
+#define EEP_OFFSET_T uint16_t
+#else
+#define EEP_OFFSET_T uint8_t
+#endif
+
+// if this marker isn't found, the eeprom is assumed to be blank
+#define EEP_MARKER 0b10100101
+
-- 
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