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