/* * Copyright 2024 Google LLC * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #pragma once #include #include //! Configure the micro's peripherals to communicate with the flash chip void flash_init(void); //! Read 1 or more bytes starting at the specified 24bit address into //! the provided buffer. This function does no range checking, so it is //! currently possible to run off the end of the flash. //! //! @param buffer A byte-buffer that will be used to store the data //! read from flash. //! @param start_addr The address of the first byte to be read from flash. //! @param buffer_size The total number of bytes to be read from flash. void flash_read_bytes(uint8_t* buffer, uint32_t start_addr, uint32_t buffer_size); //! Check if we can talk to the flash. //! @return true if the CFI table can be queried. bool flash_sanity_check(void); //! Get the checksum of a region of flash uint32_t flash_calculate_checksum(uint32_t flash_addr, uint32_t length);