1 files changed, 65 insertions, 0 deletions
diff --git a/keyboards/handwired/onekey/keymaps/wear_leveling/keymap.c b/keyboards/handwired/onekey/keymaps/wear_leveling/keymap.c
new file mode 100644
index 0000000000..dc40ca1580
--- /dev/null
+++ b/keyboards/handwired/onekey/keymaps/wear_leveling/keymap.c
@@ -0,0 +1,65 @@
+// Copyright 2018-2022 Nick Brassel (@tzarc)
+// SPDX-License-Identifier: GPL-3.0-or-later
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    LAYOUT_ortho_1x1(QK_BOOT)
+};
+
+#ifdef DEBUG_EEPROM_OUTPUT
+
+#    ifdef WEAR_LEVELING_ENABLE
+#        include "wear_leveling.h"
+#    endif // WEAR_LEVELING_ENABLE
+
+uint8_t prng(void) {
+    static uint8_t s = 0xAA, a = 0;
+    s ^= s << 3;
+    s ^= s >> 5;
+    s ^= a++ >> 2;
+    return s;
+}
+
+void keyboard_post_init_user(void) {
+    debug_enable   = true;
+    debug_matrix   = true;
+    debug_keyboard = true;
+}
+
+void matrix_scan_user(void) {
+    static uint32_t last_eeprom_access = 0;
+    uint32_t        now                = timer_read32();
+    if (now - last_eeprom_access > 5000) {
+        dprint("reading eeprom\n");
+        last_eeprom_access = now;
+
+        union {
+            uint8_t  bytes[4];
+            uint32_t raw;
+        } tmp;
+        extern uint8_t prng(void);
+        tmp.bytes[0] = prng();
+        tmp.bytes[1] = prng();
+        tmp.bytes[2] = prng();
+        tmp.bytes[3] = prng();
+
+        eeconfig_update_user(tmp.raw);
+        uint32_t value = eeconfig_read_user();
+        if (value != tmp.raw) {
+            dprint("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
+            dprint("!! EEPROM readback mismatch!\n");
+            dprint("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
+        }
+    }
+
+#    ifdef WEAR_LEVELING_ENABLE
+    static uint32_t last_wear_leveling_init = 0;
+    if (now - last_wear_leveling_init > 30000) {
+        dprint("init'ing wear-leveling\n");
+        last_wear_leveling_init = now;
+        wear_leveling_init();
+    }
+#    endif // WEAR_LEVELING_ENABLE
+}
+
+#endif // DEBUG_EEPROM_OUTPUT