qmk_firmware

nvm_eeprom_via_internal.h (970B)

// Copyright 2024 Nick Brassel (@tzarc)
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
// Keyboard level code can change where VIA stores the magic.
// The magic is the build date YYMMDD encoded as BCD in 3 bytes,
// thus installing firmware built on a different date to the one
// already installed can be detected and the EEPROM data is reset.
// The only reason this is important is in case EEPROM usage changes
// and the EEPROM was not explicitly reset by bootmagic lite.
#ifndef VIA_EEPROM_MAGIC_ADDR
#    define VIA_EEPROM_MAGIC_ADDR (EECONFIG_SIZE)
#endif
#define VIA_EEPROM_LAYOUT_OPTIONS_ADDR (VIA_EEPROM_MAGIC_ADDR + 3)
// The end of the EEPROM memory used by VIA
// By default, dynamic keymaps will start at this if there is no
// custom config
#define VIA_EEPROM_CUSTOM_CONFIG_ADDR (VIA_EEPROM_LAYOUT_OPTIONS_ADDR + VIA_EEPROM_LAYOUT_OPTIONS_SIZE)
#define VIA_EEPROM_CONFIG_END (VIA_EEPROM_CUSTOM_CONFIG_ADDR + VIA_EEPROM_CUSTOM_CONFIG_SIZE)