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trezor-firmware/core/embed/trezorhal/bootargs.h

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/*
* 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_BOOTARGS_H
#define TREZORHAL_BOOTARGS_H
#include <stddef.h>
#include <stdint.h>
// Defines boot command processed in bootloader on next reboot
typedef enum {
// Normal boot sequence
BOOT_COMMAND_NONE = 0x00000000,
// Stop and wait for further instructions
BOOT_COMMAND_STOP_AND_WAIT = 0x0FC35A96,
// Do not ask anything, install an upgrade
BOOT_COMMAND_INSTALL_UPGRADE = 0xFA4A5C8D,
} boot_command_t;
// Maximum size boot_args array
#define BOOT_ARGS_MAX_SIZE (256 - 8)
typedef union {
uint8_t raw[BOOT_ARGS_MAX_SIZE];
// firmware header hash, BOOT_COMMAND_INSTALL_UPGRADE
uint8_t hash[32];
} boot_args_t;
// Configures the boot command and associated arguments for the next reboot.
// The arguments must adhere to the boot_args_t structure layout.
void bootargs_set(boot_command_t command, const void* args, size_t args_size);
// Returns the last boot command saved during bootloader startup
boot_command_t bootargs_get_command();
// Returns the pointer to boot arguments
const boot_args_t* bootargs_get_args();
#endif // TREZORHAL_BOOTARGS_H