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trezor-firmware/core/embed/trezorhal/flash.h
2020-06-06 21:06:15 +02:00

124 lines
4.0 KiB
C

/*
* This file is part of the Trezor project, https://trezor.io/
*
* Copyright (c) SatoshiLabs
*
* 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 3 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 <http://www.gnu.org/licenses/>.
*/
#ifndef TREZORHAL_FLASH_H
#define TREZORHAL_FLASH_H
#include <stdint.h>
#include <stdlib.h>
#include "secbool.h"
// see docs/memory.md for more information
#if TREZOR_MODEL == T
#define FLASH_SECTOR_COUNT 24
#elif TREZOR_MODEL == 1
#define FLASH_SECTOR_COUNT 12
#else
#error Unknown Trezor model
#endif
#define FLASH_SECTOR_BOARDLOADER_START 0
// 1
#define FLASH_SECTOR_BOARDLOADER_END 2
// 3
#if TREZOR_MODEL == T
#define FLASH_SECTOR_STORAGE_1 4
#define FLASH_SECTOR_STORAGE_2 16
#elif TREZOR_MODEL == 1
#define FLASH_SECTOR_STORAGE_1 2
#define FLASH_SECTOR_STORAGE_2 3
#else
#error Unknown Trezor model
#endif
#define FLASH_SECTOR_BOOTLOADER 5
#define FLASH_SECTOR_FIRMWARE_START 6
// 7
// 8
// 9
// 10
#define FLASH_SECTOR_FIRMWARE_END 11
#define FLASH_SECTOR_UNUSED_START 12
// 13
// 14
#define FLASH_SECTOR_UNUSED_END 15
#define FLASH_SECTOR_FIRMWARE_EXTRA_START 17
// 18
// 19
// 20
// 21
// 22
#define FLASH_SECTOR_FIRMWARE_EXTRA_END 23
#define BOOTLOADER_SECTORS_COUNT (1)
#define STORAGE_SECTORS_COUNT (2)
#define FIRMWARE_SECTORS_COUNT (6 + 7)
extern const uint8_t STORAGE_SECTORS[STORAGE_SECTORS_COUNT];
extern const uint8_t FIRMWARE_SECTORS[FIRMWARE_SECTORS_COUNT];
// note: FLASH_SR_RDERR is STM32F42xxx and STM32F43xxx specific (STM32F427)
// (reference RM0090 section 3.7.5)
#ifndef STM32F427xx
#define FLASH_SR_RDERR 0
#endif
#define FLASH_STATUS_ALL_FLAGS \
(FLASH_SR_RDERR | FLASH_SR_PGSERR | FLASH_SR_PGPERR | FLASH_SR_PGAERR | \
FLASH_SR_WRPERR | FLASH_SR_SOP | FLASH_SR_EOP)
void flash_init(void);
secbool __wur flash_unlock_write(void);
secbool __wur flash_lock_write(void);
const void *flash_get_address(uint8_t sector, uint32_t offset, uint32_t size);
secbool __wur flash_erase_sectors(const uint8_t *sectors, int len,
void (*progress)(int pos, int len));
static inline secbool flash_erase(uint8_t sector) {
return flash_erase_sectors(&sector, 1, NULL);
}
secbool __wur flash_write_byte(uint8_t sector, uint32_t offset, uint8_t data);
secbool __wur flash_write_word(uint8_t sector, uint32_t offset, uint32_t data);
#define FLASH_OTP_NUM_BLOCKS 16
#define FLASH_OTP_BLOCK_SIZE 32
// OTP blocks allocation
#define FLASH_OTP_BLOCK_BATCH 0
#define FLASH_OTP_BLOCK_BOOTLOADER_VERSION 1
#define FLASH_OTP_BLOCK_VENDOR_KEYS_LOCK 2
#define FLASH_OTP_BLOCK_RANDOMNESS 3
secbool __wur flash_otp_read(uint8_t block, uint8_t offset, uint8_t *data,
uint8_t datalen);
secbool __wur flash_otp_write(uint8_t block, uint8_t offset,
const uint8_t *data, uint8_t datalen);
secbool __wur flash_otp_lock(uint8_t block);
secbool __wur flash_otp_is_locked(uint8_t block);
#endif // TREZORHAL_FLASH_H