mirror of
https://github.com/tillitis/tillitis-key1.git
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53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
// Copyright (C) 2024 - Tillitis AB
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// SPDX-License-Identifier: GPL-2.0-only
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#include "partition_table.h"
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#include "flash.h"
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#include "lib.h"
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#include "proto.h"
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#include <stdint.h>
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int part_table_init(partition_table_t *part_table)
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{
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// Read from flash, if it exists, otherwise create a new one.
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flash_release_powerdown();
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memset(part_table, 0x00, sizeof(*part_table));
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flash_read_data(ADDR_PARTITION_TABLE, (uint8_t *)part_table,
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sizeof(*part_table));
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if (part_table->version != PART_TABLE_VER) {
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// Partition table is not ours. Make a new one, and store it.
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memset(part_table, 0x00, sizeof(*part_table));
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part_table->version = PART_TABLE_VER;
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for (int i = 0; i < 4; i++) {
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part_table->app_storage[i].addr_start =
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(ADDR_STORAGE_AREA + i * SIZE_STORAGE_AREA);
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part_table->app_storage[i].size = SIZE_STORAGE_AREA;
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}
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/* Hardcode that a preloaded app exists in flash */
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part_table->pre_app_data.size = 28024;
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part_table->pre_app_data.status = 0x02;
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part_table_write(part_table);
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}
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// Now the partition table is synced between flash and RAM.
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return 0;
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}
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int part_table_write(partition_table_t *part_table)
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{
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flash_sector_erase(ADDR_PARTITION_TABLE);
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flash_write_data(ADDR_PARTITION_TABLE, (uint8_t *)part_table,
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sizeof(*part_table));
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return 0;
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}
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