From bebfdad795add9fbc8c6c1393d1b817d542474ed Mon Sep 17 00:00:00 2001 From: Nick Brassel Date: Wed, 23 Nov 2022 19:50:19 +1100 Subject: NVRAM refactor, phase 1. (#18969) * Rename `eeprom_stm32` to `eeprom_legacy_emulated_flash`. * Rename `flash_stm32` to `legacy_flash_ops`. * Rename `eeprom_teensy` to `eeprom_kinetis_flexram`. --- platforms/test/legacy_flash_ops_mock.c | 55 ++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 platforms/test/legacy_flash_ops_mock.c (limited to 'platforms/test/legacy_flash_ops_mock.c') diff --git a/platforms/test/legacy_flash_ops_mock.c b/platforms/test/legacy_flash_ops_mock.c new file mode 100644 index 0000000000..b9d805cb47 --- /dev/null +++ b/platforms/test/legacy_flash_ops_mock.c @@ -0,0 +1,55 @@ +/* Copyright 2021 by Don Kjer + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include +#include "legacy_flash_ops.h" + +uint8_t FlashBuf[MOCK_FLASH_SIZE] = {0}; + +static bool flash_locked = true; + +FLASH_Status FLASH_ErasePage(uint32_t Page_Address) { + if (flash_locked) return FLASH_ERROR_WRP; + Page_Address -= (uintptr_t)FlashBuf; + Page_Address -= (Page_Address % FEE_PAGE_SIZE); + if (Page_Address >= MOCK_FLASH_SIZE) return FLASH_BAD_ADDRESS; + memset(&FlashBuf[Page_Address], '\xff', FEE_PAGE_SIZE); + return FLASH_COMPLETE; +} + +FLASH_Status FLASH_ProgramHalfWord(uint32_t Address, uint16_t Data) { + if (flash_locked) return FLASH_ERROR_WRP; + Address -= (uintptr_t)FlashBuf; + if (Address >= MOCK_FLASH_SIZE) return FLASH_BAD_ADDRESS; + uint16_t oldData = *(uint16_t*)&FlashBuf[Address]; + if (oldData == 0xFFFF || Data == 0) { + *(uint16_t*)&FlashBuf[Address] = Data; + return FLASH_COMPLETE; + } else { + return FLASH_ERROR_PG; + } +} + +FLASH_Status FLASH_WaitForLastOperation(uint32_t Timeout) { + return FLASH_COMPLETE; +} +void FLASH_Unlock(void) { + flash_locked = false; +} +void FLASH_Lock(void) { + flash_locked = true; +} -- cgit v1.2.3