circuitpython/ports/stm32/mboot/mboot.h

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019-2020 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef MICROPY_INCLUDED_STM32_MBOOT_MBOOT_H
#define MICROPY_INCLUDED_STM32_MBOOT_MBOOT_H
#include "py/mpconfig.h"
#include "py/mphal.h"
// Use this to tag global static data in RAM that doesn't need to be zeroed on startup
#define SECTION_NOZERO_BSS __attribute__((section(".nozero_bss")))
#define ELEM_DATA_SIZE (1024)
#define ELEM_DATA_START (&_estack[0])
#define ELEM_DATA_MAX (&_estack[ELEM_DATA_SIZE])
#define NORETURN __attribute__((noreturn))
#define MP_ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
// The default UI code in ui.c only works if there is at least one LED configured.
#if defined(MBOOT_LED1) || defined(MICROPY_HW_LED1)
#define MBOOT_ENABLE_DEFAULT_UI (1)
#else
#define MBOOT_ENABLE_DEFAULT_UI (0)
#endif
#ifndef MBOOT_BOARD_EARLY_INIT
#define MBOOT_BOARD_EARLY_INIT(initial_r0)
#endif
#ifndef MBOOT_BOARD_ENTRY_INIT
#define MBOOT_BOARD_ENTRY_INIT(initial_r0) mboot_entry_init_default()
#endif
#ifndef MBOOT_BOARD_GET_RESET_MODE
#if MBOOT_ENABLE_DEFAULT_UI
#define MBOOT_BOARD_GET_RESET_MODE(initial_r0) mboot_get_reset_mode_default()
#else
#define MBOOT_BOARD_GET_RESET_MODE(initial_r0) BOARDCTRL_RESET_MODE_NORMAL
#endif
#endif
#ifndef MBOOT_BOARD_STATE_CHANGE
#if MBOOT_ENABLE_DEFAULT_UI
#define MBOOT_BOARD_STATE_CHANGE(state, arg) mboot_state_change_default((state), (arg))
#else
#define MBOOT_BOARD_STATE_CHANGE(state, arg)
#endif
#endif
#ifndef MBOOT_BOARD_SYSTICK
#if MBOOT_ENABLE_DEFAULT_UI
#define MBOOT_BOARD_SYSTICK() mboot_ui_systick()
#else
#define MBOOT_BOARD_SYSTICK()
#endif
#endif
#ifndef MBOOT_ADDRESS_SPACE_64BIT
#define MBOOT_ADDRESS_SPACE_64BIT (0)
#endif
// These values are used in initial_r0 to enter mboot programatically.
#define MBOOT_INITIAL_R0_KEY (0x70ad0000)
#define MBOOT_INITIAL_R0_KEY_FSLOAD (MBOOT_INITIAL_R0_KEY | 0x80)
// These are for led_state_all() and can be or'd together.
#define MBOOT_LED_STATE_LED0 (0x01)
#define MBOOT_LED_STATE_LED1 (0x02)
#define MBOOT_LED_STATE_LED2 (0x04)
#define MBOOT_LED_STATE_LED3 (0x08)
// These enum values are passed as the first argument to mboot_state_change() to
// notify of a change in state of the bootloader activity. This function has a
// default implementation in ui.c but can be overridden by a board. Some states
// have an argument passed along as the second argument to mboot_state_change().
// If this argument is unused then 0 is passed in. A result of an operation is
// 0 for success and <0 for failure, with a failure being either an MP_Exxx code
// or MBOOT_ERRNO_xxx code.
typedef enum {
MBOOT_STATE_DFU_START, // arg: unused
MBOOT_STATE_DFU_END, // arg: unused
MBOOT_STATE_FSLOAD_START, // arg: unused
MBOOT_STATE_FSLOAD_END, // arg: result of fsload operation
MBOOT_STATE_FSLOAD_PASS_START, // arg: pass number, 0 or 1 (verify and write respectively)
MBOOT_STATE_FSLOAD_PROGRESS, // arg: total bytes processed so far, high bit set when doing write pass
MBOOT_STATE_ERASE_START, // arg: address of erase
MBOOT_STATE_ERASE_END, // arg: result of erase
MBOOT_STATE_READ_START, // arg: address of read
MBOOT_STATE_READ_END, // arg: result of read
MBOOT_STATE_WRITE_START, // arg: address of write
MBOOT_STATE_WRITE_END, // arg: result of write
} mboot_state_t;
enum {
MBOOT_ERRNO_FLASH_ERASE_DISALLOWED = 200,
MBOOT_ERRNO_FLASH_ERASE_FAILED,
MBOOT_ERRNO_FLASH_READ_DISALLOWED,
MBOOT_ERRNO_FLASH_WRITE_DISALLOWED,
MBOOT_ERRNO_DFU_INVALID_HEADER = 210,
MBOOT_ERRNO_DFU_INVALID_TARGET,
MBOOT_ERRNO_DFU_INVALID_SIZE,
MBOOT_ERRNO_DFU_TOO_MANY_TARGETS,
MBOOT_ERRNO_DFU_READ_ERROR,
MBOOT_ERRNO_DFU_INVALID_CRC,
MBOOT_ERRNO_FSLOAD_NO_FSLOAD = 220,
MBOOT_ERRNO_FSLOAD_NO_MOUNT,
MBOOT_ERRNO_FSLOAD_INVALID_MOUNT,
MBOOT_ERRNO_PACK_INVALID_ADDR = 230,
MBOOT_ERRNO_PACK_INVALID_CHUNK,
MBOOT_ERRNO_PACK_INVALID_VERSION,
MBOOT_ERRNO_PACK_DECRYPT_FAILED,
MBOOT_ERRNO_PACK_SIGN_FAILED,
MBOOT_ERRNO_VFS_FAT_MOUNT_FAILED = 240,
MBOOT_ERRNO_VFS_FAT_OPEN_FAILED,
MBOOT_ERRNO_VFS_LFS1_MOUNT_FAILED,
MBOOT_ERRNO_VFS_LFS1_OPEN_FAILED,
MBOOT_ERRNO_VFS_LFS2_MOUNT_FAILED,
MBOOT_ERRNO_VFS_LFS2_OPEN_FAILED,
MBOOT_ERRNO_GUNZIP_FAILED = 250,
};
enum {
ELEM_TYPE_END = 1,
ELEM_TYPE_MOUNT,
ELEM_TYPE_FSLOAD,
ELEM_TYPE_STATUS,
};
enum {
ELEM_MOUNT_FAT = 1,
ELEM_MOUNT_LFS1,
ELEM_MOUNT_LFS2,
};
// Configure the type used to hold an address in the mboot address space.
#if MBOOT_ADDRESS_SPACE_64BIT
typedef uint64_t mboot_addr_t;
#else
typedef uint32_t mboot_addr_t;
#endif
extern volatile uint32_t systick_ms;
extern uint8_t _estack[ELEM_DATA_SIZE];
void systick_init(void);
void led_init(void);
void mboot_ui_systick(void);
void SystemClock_Config(void);
uint32_t get_le32(const uint8_t *b);
uint64_t get_le64(const uint8_t *b);
void led_state_all(unsigned int mask);
int hw_page_erase(uint32_t addr, uint32_t *next_addr);
void hw_read(mboot_addr_t addr, size_t len, uint8_t *buf);
int hw_write(uint32_t addr, const uint8_t *src8, size_t len);
int do_page_erase(uint32_t addr, uint32_t *next_addr);
void do_read(mboot_addr_t addr, size_t len, uint8_t *buf);
int do_write(uint32_t addr, const uint8_t *src8, size_t len, bool dry_run);
const uint8_t *elem_search(const uint8_t *elem, uint8_t elem_id);
int fsload_process(void);
static inline void mboot_entry_init_default(void) {
#if MBOOT_ENABLE_DEFAULT_UI
// Init subsystems (mboot_get_reset_mode() may call these, calling them again is ok)
led_init();
#endif
// set the system clock to be HSE
SystemClock_Config();
#if defined(STM32H7)
// Ensure IRQs are enabled (needed coming out of ST bootloader on H7)
__set_PRIMASK(0);
#endif
}
int mboot_get_reset_mode_default(void);
void mboot_state_change_default(mboot_state_t state, uint32_t arg);
static inline void mboot_state_change(mboot_state_t state, uint32_t arg) {
return MBOOT_BOARD_STATE_CHANGE(state, arg);
}
#endif // MICROPY_INCLUDED_STM32_MBOOT_MBOOT_H