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Refactor bootloader_jump() implementations (#15450)

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* Refactor `bootloader_jump()` implementations

* Fix tests?

* Rename `atmel-samba` to `md-boot`
This commit is contained in:
Ryan 2021-12-27 21:10:07 +11:00 committed by GitHub
parent cffe143ca2
commit 6bc870d899
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
32 changed files with 701 additions and 493 deletions
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1
build_test.mk
View File

@ -43,6 +43,7 @@ all: elf
VPATH += $(COMMON_VPATH)
PLATFORM:=TEST
PLATFORM_KEY:=test
BOOTLOADER_TYPE:=none
ifeq ($(strip $(DEBUG)), 1)
CONSOLE_ENABLE = yes

40
builddefs/bootloader.mk
View File

@ -30,6 +30,7 @@
# bootloadhid HIDBootFlash compatible (ATmega32A)
# usbasploader USBaspLoader (ATmega328P)
# ARM:
# halfkay PJRC Teensy
# kiibohd Input:Club Kiibohd bootloader (only used on their boards)
# stm32duino STM32Duino (STM32F103x8)
# stm32-dfu STM32 USB DFU in ROM
@ -43,6 +44,8 @@
ifeq ($(strip $(BOOTLOADER)), atmel-dfu)
OPT_DEFS += -DBOOTLOADER_ATMEL_DFU
OPT_DEFS += -DBOOTLOADER_DFU
BOOTLOADER_TYPE = dfu
ifneq (,$(filter $(MCU), at90usb162 atmega16u2 atmega32u2 atmega16u4 atmega32u4 at90usb646 at90usb647))
BOOTLOADER_SIZE = 4096
endif
@ -53,6 +56,8 @@ endif
ifeq ($(strip $(BOOTLOADER)), lufa-dfu)
OPT_DEFS += -DBOOTLOADER_LUFA_DFU
OPT_DEFS += -DBOOTLOADER_DFU
BOOTLOADER_TYPE = dfu
ifneq (,$(filter $(MCU), at90usb162 atmega16u2 atmega32u2 atmega16u4 atmega32u4 at90usb646 at90usb647))
BOOTLOADER_SIZE ?= 4096
endif
@ -63,6 +68,8 @@ endif
ifeq ($(strip $(BOOTLOADER)), qmk-dfu)
OPT_DEFS += -DBOOTLOADER_QMK_DFU
OPT_DEFS += -DBOOTLOADER_DFU
BOOTLOADER_TYPE = dfu
ifneq (,$(filter $(MCU), at90usb162 atmega16u2 atmega32u2 atmega16u4 atmega32u4 at90usb646 at90usb647))
BOOTLOADER_SIZE ?= 4096
endif
@ -73,10 +80,14 @@ endif
ifeq ($(strip $(BOOTLOADER)), qmk-hid)
OPT_DEFS += -DBOOTLOADER_QMK_HID
OPT_DEFS += -DBOOTLOADER_HID
BOOTLOADER_TYPE = dfu
BOOTLOADER_SIZE ?= 4096
endif
ifeq ($(strip $(BOOTLOADER)), halfkay)
OPT_DEFS += -DBOOTLOADER_HALFKAY
BOOTLOADER_TYPE = halfkay
ifeq ($(strip $(MCU)), atmega32u4)
BOOTLOADER_SIZE = 512
endif
@ -86,18 +97,26 @@ ifeq ($(strip $(BOOTLOADER)), halfkay)
endif
ifeq ($(strip $(BOOTLOADER)), caterina)
OPT_DEFS += -DBOOTLOADER_CATERINA
BOOTLOADER_TYPE = caterina
BOOTLOADER_SIZE = 4096
endif
ifneq (,$(filter $(BOOTLOADER), bootloadhid bootloadHID))
OPT_DEFS += -DBOOTLOADER_BOOTLOADHID
BOOTLOADER_TYPE = bootloadhid
BOOTLOADER_SIZE = 4096
endif
ifneq (,$(filter $(BOOTLOADER), usbasploader USBasp))
OPT_DEFS += -DBOOTLOADER_USBASP
BOOTLOADER_TYPE = usbasploader
BOOTLOADER_SIZE = 4096
endif
ifeq ($(strip $(BOOTLOADER)), lufa-ms)
OPT_DEFS += -DBOOTLOADER_MS
BOOTLOADER_TYPE = dfu
BOOTLOADER_SIZE ?= 8192
FIRMWARE_FORMAT = bin
cpfirmware: lufa_warning
@ -115,6 +134,7 @@ endif
ifeq ($(strip $(BOOTLOADER)), stm32-dfu)
OPT_DEFS += -DBOOTLOADER_STM32_DFU
BOOTLOADER_TYPE = stm32_dfu
# Options to pass to dfu-util when flashing
DFU_ARGS ?= -d 0483:DF11 -a 0 -s 0x08000000:leave
@ -122,6 +142,7 @@ ifeq ($(strip $(BOOTLOADER)), stm32-dfu)
endif
ifeq ($(strip $(BOOTLOADER)), apm32-dfu)
OPT_DEFS += -DBOOTLOADER_APM32_DFU
BOOTLOADER_TYPE = stm32_dfu
# Options to pass to dfu-util when flashing
DFU_ARGS ?= -d 314B:0106 -a 0 -s 0x08000000:leave
@ -129,6 +150,7 @@ ifeq ($(strip $(BOOTLOADER)), apm32-dfu)
endif
ifeq ($(strip $(BOOTLOADER)), gd32v-dfu)
OPT_DEFS += -DBOOTLOADER_GD32V_DFU
BOOTLOADER_TYPE = gd32v_dfu
# Options to pass to dfu-util when flashing
DFU_ARGS ?= -d 28E9:0189 -a 0 -s 0x08000000:leave
@ -136,6 +158,8 @@ ifeq ($(strip $(BOOTLOADER)), gd32v-dfu)
endif
ifeq ($(strip $(BOOTLOADER)), kiibohd)
OPT_DEFS += -DBOOTLOADER_KIIBOHD
BOOTLOADER_TYPE = kiibohd
ifeq ($(strip $(MCU_ORIG)), MK20DX128)
MCU_LDSCRIPT = MK20DX128BLDR4
endif
@ -151,8 +175,7 @@ ifeq ($(strip $(BOOTLOADER)), stm32duino)
OPT_DEFS += -DBOOTLOADER_STM32DUINO
MCU_LDSCRIPT = STM32F103x8_stm32duino_bootloader
BOARD = STM32_F103_STM32DUINO
# STM32F103 does NOT have an USB bootloader in ROM (only serial), so setting anything here does not make much sense
STM32_BOOTLOADER_ADDRESS = 0x80000000
BOOTLOADER_TYPE = stm32duino
# Options to pass to dfu-util when flashing
DFU_ARGS = -d 1EAF:0003 -a 2 -R
@ -160,4 +183,17 @@ ifeq ($(strip $(BOOTLOADER)), stm32duino)
endif
ifeq ($(strip $(BOOTLOADER)), tinyuf2)
OPT_DEFS += -DBOOTLOADER_TINYUF2
BOOTLOADER_TYPE = tinyuf2
endif
ifeq ($(strip $(BOOTLOADER)), halfkay)
OPT_DEFS += -DBOOTLOADER_HALFKAY
BOOTLOADER_TYPE = halfkay
endif
ifeq ($(strip $(BOOTLOADER)), md-boot)
OPT_DEFS += -DBOOTLOADER_MD_BOOT
BOOTLOADER_TYPE = md_boot
endif
ifeq ($(strip $(BOOTLOADER_TYPE)),)
BOOTLOADER_TYPE = none
endif

2
data/schemas/keyboard.jsonschema
View File

@ -57,7 +57,7 @@
},
"bootloader": {
"type": "string",
"enum": ["atmel-dfu", "bootloadhid", "bootloadHID", "caterina", "halfkay", "kiibohd", "lufa-dfu", "lufa-ms", "micronucleus", "qmk-dfu", "qmk-hid", "stm32-dfu", "stm32duino", "gd32v-dfu", "wb32-dfu", "unknown", "usbasploader", "USBasp", "tinyuf2"],
"enum": ["atmel-dfu", "bootloadhid", "bootloadHID", "caterina", "halfkay", "kiibohd", "lufa-dfu", "lufa-ms", "md-boot", "micronucleus", "qmk-dfu", "qmk-hid", "stm32-dfu", "stm32duino", "gd32v-dfu", "wb32-dfu", "unknown", "usbasploader", "USBasp", "tinyuf2"],
},
"bootloader_instructions": {
"type": "string",

3
keyboards/handwired/onekey/teensy_32/rules.mk
View File

@ -1,5 +1,8 @@
# MCU name
MCU = MK20DX256
# Bootloader selection
BOOTLOADER = halfkay
# Enter lower-power sleep mode when on the ChibiOS idle thread
OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE

3
keyboards/handwired/onekey/teensy_lc/rules.mk
View File

@ -2,5 +2,8 @@
MCU = MKL26Z64
USE_CHIBIOS_CONTRIB = yes
# Bootloader selection
BOOTLOADER = halfkay
# Enter lower-power sleep mode when on the ChibiOS idle thread
OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE

3
keyboards/massdrop/alt/rules.mk
View File

@ -5,6 +5,9 @@ SRC += config_led.c
ARM_ATSAM = SAMD51J18A
MCU = cortex-m4
# Bootloader selection
BOOTLOADER = md-boot
# Build Options
# change yes to no to disable
#

3
keyboards/massdrop/ctrl/rules.mk
View File

@ -5,6 +5,9 @@ SRC += config_led.c
ARM_ATSAM = SAMD51J18A
MCU = cortex-m4
# Bootloader selection
BOOTLOADER = md-boot
# Build Options
# change yes to no to disable
#

4
keyboards/mechlovin/olly/jf/rules.mk
View File

@ -5,7 +5,7 @@ MCU = atmega32a
F_CPU = 16000000
# Bootloader selection
BOOTLOADER = USBasp
BOOTLOADER = usbasploader
# Build Options
# change yes to no to disable
@ -21,4 +21,4 @@ RGBLIGHT_ENABLE = yes # Enable keyboard RGB underglow
AUDIO_ENABLE = no # Audio output
CUSTOM_MATRIX = lite
SRC += matrix.c
SRC += matrix.c

2
keyboards/rocketboard_16/rules.mk
View File

@ -8,7 +8,7 @@ MCU = STM32F103
MCU_LDSCRIPT = STM32F103xB_stm32duino_bootloader
OPT_DEFS += -DBOOTLOADER_STM32DUINO
BOARD = STM32_F103_STM32DUINO
STM32_BOOTLOADER_ADDRESS = 0x80000000
BOOTLOADER_TYPE = stm32duino
DFU_ARGS = -d 1EAF:0003 -a 2 -R
DFU_SUFFIX_ARGS = -v 1EAF -p 0003

2
keyboards/tgr/jane/v2ce/rules.mk
View File

@ -2,7 +2,7 @@
MCU = atmega32a
# Bootloader selection
BOOTLOADER = bootloadHID
BOOTLOADER = bootloadhid
# Build Options
# change yes to no to disable

47
platforms/arm_atsam/bootloader.c → platforms/arm_atsam/bootloaders/md_boot.c
View File

@ -15,13 +15,18 @@
*/
#include "bootloader.h"
#include "samd51j18a.h"
#include "md_bootloader.h"
// Set watchdog timer to reset. Directs the bootloader to stay in programming mode.
void bootloader_jump(void) {
#include "samd51j18a.h"
#ifdef KEYBOARD_massdrop_ctrl
// CTRL keyboards released with bootloader version below must use RAM method. Otherwise use WDT method.
// WARNING: These are only for CTRL bootloader release "v2.18Jun 22 2018 17:28:08" for bootloader_jump support
extern uint32_t _eram;
#define BOOTLOADER_MAGIC 0x3B9ACA00
#define MAGIC_ADDR (uint32_t *)((intptr_t)(&_eram) - 4)
// CTRL keyboards released with bootloader version below must use RAM method. Otherwise use WDT method.
void bootloader_jump(void) {
uint8_t ver_ram_method[] = "v2.18Jun 22 2018 17:28:08"; // The version to match (NULL terminated by compiler)
uint8_t *ver_check = ver_ram_method; // Pointer to version match string for traversal
uint8_t *ver_rom = (uint8_t *)0x21A0; // Pointer to address in ROM where this specific bootloader version would exist
@ -34,24 +39,28 @@ void bootloader_jump(void) {
if (!*ver_check) { // If check version pointer is NULL, all characters have matched
*MAGIC_ADDR = BOOTLOADER_MAGIC; // Set magic number into RAM
NVIC_SystemReset(); // Perform system reset
while (1) {
} // Won't get here
}
#endif
while (1); // Won't get here
}
}
#else
// Set watchdog timer to reset. Directs the bootloader to stay in programming mode.
void bootloader_jump(void) {
WDT->CTRLA.bit.ENABLE = 0;
while (WDT->SYNCBUSY.bit.ENABLE) {
}
while (WDT->CTRLA.bit.ENABLE) {
}
while (WDT->SYNCBUSY.bit.ENABLE);
while (WDT->CTRLA.bit.ENABLE);
WDT->CONFIG.bit.WINDOW = 0;
WDT->CONFIG.bit.PER = 0;
WDT->EWCTRL.bit.EWOFFSET = 0;
WDT->CTRLA.bit.ENABLE = 1;
while (WDT->SYNCBUSY.bit.ENABLE) {
}
while (!WDT->CTRLA.bit.ENABLE) {
}
while (1) {
} // Wait on timeout
while (WDT->SYNCBUSY.bit.ENABLE);
while (!WDT->CTRLA.bit.ENABLE);
while (1); // Wait on timeout
}
#endif

293
platforms/avr/bootloader.c
View File

@ -1,293 +0,0 @@
#include <stdint.h>
#include <stdbool.h>
#include <avr/io.h>
#include <avr/eeprom.h>
#include <avr/interrupt.h>
#include <avr/wdt.h>
#include <util/delay.h>
#include "bootloader.h"
#include <avr/boot.h>
#ifdef PROTOCOL_LUFA
# include <LUFA/Drivers/USB/USB.h>
#endif
/** \brief Bootloader Size in *bytes*
*
* AVR Boot section size are defined by setting BOOTSZ fuse in fact. Consult with your MCU datasheet.
* Note that 'Word'(2 bytes) size and address are used in datasheet while TMK uses 'Byte'.
*
* Size of Bootloaders in bytes:
* Atmel DFU loader(ATmega32U4) 4096
* Atmel DFU loader(AT90USB128) 8192
* LUFA bootloader(ATmega32U4) 4096
* Arduino Caterina(ATmega32U4) 4096
* USBaspLoader(ATmega***) 2048
* Teensy halfKay(ATmega32U4) 512
* Teensy++ halfKay(AT90USB128) 1024
*
* AVR Boot section is located at the end of Flash memory like the followings.
*
* byte Atmel/LUFA(ATMega32u4) byte Atmel(AT90SUB128)
* 0x0000 +---------------+ 0x00000 +---------------+
* | | | |
* | | | |
* | Application | | Application |
* | | | |
* = = = =
* | | 32KB-4KB | | 128KB-8KB
* 0x7000 +---------------+ 0x1E000 +---------------+
* | Bootloader | 4KB | Bootloader | 8KB
* 0x7FFF +---------------+ 0x1FFFF +---------------+
*
*
* byte Teensy(ATMega32u4) byte Teensy++(AT90SUB128)
* 0x0000 +---------------+ 0x00000 +---------------+
* | | | |
* | | | |
* | Application | | Application |
* | | | |
* = = = =
* | | 32KB-512B | | 128KB-1KB
* 0x7E00 +---------------+ 0x1FC00 +---------------+
* | Bootloader | 512B | Bootloader | 1KB
* 0x7FFF +---------------+ 0x1FFFF +---------------+
*/
#define FLASH_SIZE (FLASHEND + 1L)
#if !defined(BOOTLOADER_SIZE)
uint16_t bootloader_start;
#endif
// compatibility between ATMega8 and ATMega88
#if !defined(MCUCSR)
# if defined(MCUSR)
# define MCUCSR MCUSR
# endif
#endif
/** \brief Entering the Bootloader via Software
*
* http://www.fourwalledcubicle.com/files/LUFA/Doc/120730/html/_page__software_bootloader_start.html
*/
#define BOOTLOADER_RESET_KEY 0xB007B007
uint32_t reset_key __attribute__((section(".noinit,\"aw\",@nobits;")));
/** \brief initialize MCU status by watchdog reset
*
* FIXME: needs doc
*/
__attribute__((weak)) void bootloader_jump(void) {
#if !defined(BOOTLOADER_SIZE)
uint8_t high_fuse = boot_lock_fuse_bits_get(GET_HIGH_FUSE_BITS);
if (high_fuse & ~(FUSE_BOOTSZ0 & FUSE_BOOTSZ1)) {
bootloader_start = (FLASH_SIZE - 512) >> 1;
} else if (high_fuse & ~(FUSE_BOOTSZ1)) {
bootloader_start = (FLASH_SIZE - 1024) >> 1;
} else if (high_fuse & ~(FUSE_BOOTSZ0)) {
bootloader_start = (FLASH_SIZE - 2048) >> 1;
} else {
bootloader_start = (FLASH_SIZE - 4096) >> 1;
}
#endif
// Something like this might work, but it compiled larger than the block above
// bootloader_start = FLASH_SIZE - (256 << (~high_fuse & 0b110 >> 1));
#if defined(BOOTLOADER_HALFKAY)
// http://www.pjrc.com/teensy/jump_to_bootloader.html
cli();
// disable watchdog, if enabled (it's not)
// disable all peripherals
// a shutdown call might make sense here
UDCON = 1;
USBCON = (1 << FRZCLK); // disable USB
UCSR1B = 0;
_delay_ms(5);
# if defined(__AVR_AT90USB162__) // Teensy 1.0
EIMSK = 0;
PCICR = 0;
SPCR = 0;
ACSR = 0;
EECR = 0;
TIMSK0 = 0;
TIMSK1 = 0;
UCSR1B = 0;
DDRB = 0;
DDRC = 0;
DDRD = 0;
PORTB = 0;
PORTC = 0;
PORTD = 0;
asm volatile("jmp 0x3E00");
# elif defined(__AVR_ATmega32U4__) // Teensy 2.0
EIMSK = 0;
PCICR = 0;
SPCR = 0;
ACSR = 0;
EECR = 0;
ADCSRA = 0;
TIMSK0 = 0;
TIMSK1 = 0;
TIMSK3 = 0;
TIMSK4 = 0;
UCSR1B = 0;
TWCR = 0;
DDRB = 0;
DDRC = 0;
DDRD = 0;
DDRE = 0;
DDRF = 0;
TWCR = 0;
PORTB = 0;
PORTC = 0;
PORTD = 0;
PORTE = 0;
PORTF = 0;
asm volatile("jmp 0x7E00");
# elif defined(__AVR_AT90USB646__) // Teensy++ 1.0
EIMSK = 0;
PCICR = 0;
SPCR = 0;
ACSR = 0;
EECR = 0;
ADCSRA = 0;
TIMSK0 = 0;
TIMSK1 = 0;
TIMSK2 = 0;
TIMSK3 = 0;
UCSR1B = 0;
TWCR = 0;
DDRA = 0;
DDRB = 0;
DDRC = 0;
DDRD = 0;
DDRE = 0;
DDRF = 0;
PORTA = 0;
PORTB = 0;
PORTC = 0;
PORTD = 0;
PORTE = 0;
PORTF = 0;
asm volatile("jmp 0xFC00");
# elif defined(__AVR_AT90USB1286__) // Teensy++ 2.0
EIMSK = 0;
PCICR = 0;
SPCR = 0;
ACSR = 0;
EECR = 0;
ADCSRA = 0;
TIMSK0 = 0;
TIMSK1 = 0;
TIMSK2 = 0;
TIMSK3 = 0;
UCSR1B = 0;
TWCR = 0;
DDRA = 0;
DDRB = 0;
DDRC = 0;
DDRD = 0;
DDRE = 0;
DDRF = 0;
PORTA = 0;
PORTB = 0;
PORTC = 0;
PORTD = 0;
PORTE = 0;
PORTF = 0;
asm volatile("jmp 0x1FC00");
# endif
#elif defined(BOOTLOADER_CATERINA)
// this block may be optional
// TODO: figure it out
uint16_t *const bootKeyPtr = (uint16_t *)0x0800;
// Value used by Caterina bootloader use to determine whether to run the
// sketch or the bootloader programmer.
uint16_t bootKey = 0x7777;
*bootKeyPtr = bootKey;
// setup watchdog timeout
wdt_enable(WDTO_60MS);
while (1) {
} // wait for watchdog timer to trigger
#elif defined(BOOTLOADER_USBASP)
// Taken with permission of Stephan Baerwolf from https://github.com/tinyusbboard/API/blob/master/apipage.c
wdt_enable(WDTO_15MS);
wdt_reset();
asm volatile("cli \n\t"
"ldi r29 , %[ramendhi] \n\t"
"ldi r28 , %[ramendlo] \n\t"
# if (FLASHEND > 131071)
"ldi r18 , %[bootaddrhi] \n\t"
"st Y+, r18 \n\t"
# endif
"ldi r18 , %[bootaddrme] \n\t"
"st Y+, r18 \n\t"
"ldi r18 , %[bootaddrlo] \n\t"
"st Y+, r18 \n\t"
"out %[mcucsrio], __zero_reg__ \n\t"
"bootloader_startup_loop%=: \n\t"
"rjmp bootloader_startup_loop%= \n\t"
:
: [mcucsrio] "I"(_SFR_IO_ADDR(MCUCSR)),
# if (FLASHEND > 131071)
[ramendhi] "M"(((RAMEND - 2) >> 8) & 0xff), [ramendlo] "M"(((RAMEND - 2) >> 0) & 0xff), [bootaddrhi] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 16) & 0xff),
# else
[ramendhi] "M"(((RAMEND - 1) >> 8) & 0xff), [ramendlo] "M"(((RAMEND - 1) >> 0) & 0xff),
# endif
[bootaddrme] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 8) & 0xff), [bootaddrlo] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 0) & 0xff));
#else // Assume remaining boards are DFU, even if the flag isn't set
# if !(defined(__AVR_ATmega32A__) || defined(__AVR_ATmega328P__) || defined(__AVR_ATmega328__) || defined(__AVR_ATtiny85__)) // no USB - maybe BOOTLOADER_BOOTLOADHID instead though?
UDCON = 1;
USBCON = (1 << FRZCLK); // disable USB
UCSR1B = 0;
_delay_ms(5); // 5 seems to work fine
# endif
# ifdef BOOTLOADER_BOOTLOADHID
// force bootloadHID to stay in bootloader mode, so that it waits
// for a new firmware to be flashed
eeprom_write_byte((uint8_t *)1, 0x00);
# endif
// watchdog reset
reset_key = BOOTLOADER_RESET_KEY;
wdt_enable(WDTO_250MS);
for (;;)
;
#endif
}
/* this runs before main() */
void bootloader_jump_after_watchdog_reset(void) __attribute__((used, naked, section(".init3")));
void bootloader_jump_after_watchdog_reset(void) {
#ifndef BOOTLOADER_HALFKAY
if ((MCUCSR & (1 << WDRF)) && reset_key == BOOTLOADER_RESET_KEY) {
reset_key = 0;
// My custom USBasploader requires this to come up.
MCUCSR = 0;
// Seems like Teensy halfkay loader requires clearing WDRF and disabling watchdog.
MCUCSR &= ~(1 << WDRF);
wdt_disable();
// This is compled into 'icall', address should be in word unit, not byte.
# ifdef BOOTLOADER_SIZE
((void (*)(void))((FLASH_SIZE - BOOTLOADER_SIZE) >> 1))();
# else
asm("ijmp" ::"z"(bootloader_start));
# endif
}
#endif
}

34
platforms/avr/bootloaders/bootloadhid.c Normal file
View File

@ -0,0 +1,34 @@
/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
#include <avr/eeprom.h>
#include <avr/wdt.h>
__attribute__((weak))
void bootloader_jump(void) {
// force bootloadHID to stay in bootloader mode, so that it waits
// for a new firmware to be flashed
// NOTE: this byte is part of QMK's "magic number" - changing it causes the EEPROM to be re-initialized
// thus every time the device is flashed the EEPROM will be wiped
eeprom_write_byte((uint8_t *)1, 0x00);
// watchdog reset
wdt_enable(WDTO_250MS);
for (;;)
;
}

39
platforms/avr/bootloaders/caterina.c Normal file
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@ -0,0 +1,39 @@
/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
#include <avr/wdt.h>
__attribute__((weak))
void bootloader_jump(void) {
// this block may be optional
// TODO: figure it out
uint16_t *const bootKeyPtr = (uint16_t *)0x0800;
// Value used by Caterina bootloader use to determine whether to run the
// sketch or the bootloader programmer.
uint16_t bootKey = 0x7777;
*bootKeyPtr = bootKey;
// setup watchdog timeout
wdt_enable(WDTO_60MS);
// wait for watchdog timer to trigger
while (1) { }
}

53
platforms/avr/bootloaders/dfu.c Normal file
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/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
#include <avr/wdt.h>
#include <util/delay.h>
#define FLASH_SIZE (FLASHEND + 1L)
/** \brief Entering the Bootloader via Software
*
* http://www.fourwalledcubicle.com/files/LUFA/Doc/120730/html/_page__software_bootloader_start.html
*/
#define BOOTLOADER_RESET_KEY 0xB007B007
uint32_t reset_key __attribute__((section(".noinit,\"aw\",@nobits;")));
__attribute__((weak))
void bootloader_jump(void) {
UDCON = 1;
USBCON = (1 << FRZCLK); // disable USB
UCSR1B = 0;
_delay_ms(5); // 5 seems to work fine
// watchdog reset
reset_key = BOOTLOADER_RESET_KEY;
wdt_enable(WDTO_250MS);
for (;;)
;
}
/* this runs before main() */
void bootloader_jump_after_watchdog_reset(void) __attribute__((used, naked, section(".init3")));
void bootloader_jump_after_watchdog_reset(void) {
if ((MCUSR & (1 << WDRF)) && reset_key == BOOTLOADER_RESET_KEY) {
reset_key = 0;
((void (*)(void))((FLASH_SIZE - BOOTLOADER_SIZE) >> 1))();
}
}

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/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
#include <avr/interrupt.h>
#include <util/delay.h>
__attribute__((weak))
void bootloader_jump(void) {
// http://www.pjrc.com/teensy/jump_to_bootloader.html
cli();
// disable watchdog, if enabled (it's not)
// disable all peripherals
// a shutdown call might make sense here
UDCON = 1;
USBCON = (1 << FRZCLK); // disable USB
UCSR1B = 0;
_delay_ms(5);
#if defined(__AVR_AT90USB162__) // Teensy 1.0
EIMSK = 0;
PCICR = 0;
SPCR = 0;
ACSR = 0;
EECR = 0;
TIMSK0 = 0;
TIMSK1 = 0;
UCSR1B = 0;
DDRB = 0;
DDRC = 0;
DDRD = 0;
PORTB = 0;
PORTC = 0;
PORTD = 0;
asm volatile("jmp 0x3E00");
#elif defined(__AVR_ATmega32U4__) // Teensy 2.0
EIMSK = 0;
PCICR = 0;
SPCR = 0;
ACSR = 0;
EECR = 0;
ADCSRA = 0;
TIMSK0 = 0;
TIMSK1 = 0;
TIMSK3 = 0;
TIMSK4 = 0;
UCSR1B = 0;
TWCR = 0;
DDRB = 0;
DDRC = 0;
DDRD = 0;
DDRE = 0;
DDRF = 0;
TWCR = 0;
PORTB = 0;
PORTC = 0;
PORTD = 0;
PORTE = 0;
PORTF = 0;
asm volatile("jmp 0x7E00");
#elif defined(__AVR_AT90USB646__) // Teensy++ 1.0
EIMSK = 0;
PCICR = 0;
SPCR = 0;
ACSR = 0;
EECR = 0;
ADCSRA = 0;
TIMSK0 = 0;
TIMSK1 = 0;
TIMSK2 = 0;
TIMSK3 = 0;
UCSR1B = 0;
TWCR = 0;
DDRA = 0;
DDRB = 0;
DDRC = 0;
DDRD = 0;
DDRE = 0;
DDRF = 0;
PORTA = 0;
PORTB = 0;
PORTC = 0;
PORTD = 0;
PORTE = 0;
PORTF = 0;
asm volatile("jmp 0xFC00");
#elif defined(__AVR_AT90USB1286__) // Teensy++ 2.0
EIMSK = 0;
PCICR = 0;
SPCR = 0;
ACSR = 0;
EECR = 0;
ADCSRA = 0;
TIMSK0 = 0;
TIMSK1 = 0;
TIMSK2 = 0;
TIMSK3 = 0;
UCSR1B = 0;
TWCR = 0;
DDRA = 0;
DDRB = 0;
DDRC = 0;
DDRD = 0;
DDRE = 0;
DDRF = 0;
PORTA = 0;
PORTB = 0;
PORTC = 0;
PORTD = 0;
PORTE = 0;
PORTF = 0;
asm volatile("jmp 0x1FC00");
#endif
}

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/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
__attribute__((weak))
void bootloader_jump(void) { }

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/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
#include <avr/wdt.h>
#define FLASH_SIZE (FLASHEND + 1L)
#if !defined(MCUCSR)
# if defined(MCUSR)
# define MCUCSR MCUSR
# endif
#endif
__attribute__((weak))
void bootloader_jump(void) {
// Taken with permission of Stephan Baerwolf from https://github.com/tinyusbboard/API/blob/master/apipage.c
wdt_enable(WDTO_15MS);
wdt_reset();
asm volatile("cli \n\t"
"ldi r29 , %[ramendhi] \n\t"
"ldi r28 , %[ramendlo] \n\t"
#if (FLASHEND > 131071)
"ldi r18 , %[bootaddrhi] \n\t"
"st Y+, r18 \n\t"
#endif
"ldi r18 , %[bootaddrme] \n\t"
"st Y+, r18 \n\t"
"ldi r18 , %[bootaddrlo] \n\t"
"st Y+, r18 \n\t"
"out %[mcucsrio], __zero_reg__ \n\t"
"bootloader_startup_loop%=: \n\t"
"rjmp bootloader_startup_loop%= \n\t"
:
: [mcucsrio] "I"(_SFR_IO_ADDR(MCUCSR)),
#if (FLASHEND > 131071)
[ramendhi] "M"(((RAMEND - 2) >> 8) & 0xff), [ramendlo] "M"(((RAMEND - 2) >> 0) & 0xff), [bootaddrhi] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 16) & 0xff),
#else
[ramendhi] "M"(((RAMEND - 1) >> 8) & 0xff), [ramendlo] "M"(((RAMEND - 1) >> 0) & 0xff),
#endif
[bootaddrme] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 8) & 0xff), [bootaddrlo] "M"((((FLASH_SIZE - BOOTLOADER_SIZE) >> 1) >> 0) & 0xff));
}

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#include "bootloader.h"
#include <ch.h>
#include <hal.h>
#include "wait.h"
/* This code should be checked whether it runs correctly on platforms */
#define SYMVAL(sym) (uint32_t)(((uint8_t *)&(sym)) - ((uint8_t *)0))
#define BOOTLOADER_MAGIC 0xDEADBEEF
#define MAGIC_ADDR (unsigned long *)(SYMVAL(__ram0_end__) - 4)
#ifndef STM32_BOOTLOADER_DUAL_BANK
# define STM32_BOOTLOADER_DUAL_BANK FALSE
#endif
#ifdef BOOTLOADER_TINYUF2
# define DBL_TAP_MAGIC 0xf01669ef // From tinyuf2's board_api.h
// defined by linker script
extern uint32_t _board_dfu_dbl_tap[];
# define DBL_TAP_REG _board_dfu_dbl_tap[0]
void bootloader_jump(void) {
DBL_TAP_REG = DBL_TAP_MAGIC;
NVIC_SystemReset();
}
void enter_bootloader_mode_if_requested(void) { /* not needed, no two-stage reset */
}
#elif STM32_BOOTLOADER_DUAL_BANK
// Need pin definitions
# include "config_common.h"
# ifndef STM32_BOOTLOADER_DUAL_BANK_GPIO
# error "No STM32_BOOTLOADER_DUAL_BANK_GPIO defined, don't know which pin to toggle"
# endif
# ifndef STM32_BOOTLOADER_DUAL_BANK_POLARITY
# define STM32_BOOTLOADER_DUAL_BANK_POLARITY 0
# endif
# ifndef STM32_BOOTLOADER_DUAL_BANK_DELAY
# define STM32_BOOTLOADER_DUAL_BANK_DELAY 100000
# endif
extern uint32_t __ram0_end__;
__attribute__((weak)) void bootloader_jump(void) {
// For STM32 MCUs with dual-bank flash, and we're incapable of jumping to the bootloader. The first valid flash
// bank is executed unconditionally after a reset, so it doesn't enter DFU unless BOOT0 is high. Instead, we do
// it with hardware...in this case, we pull a GPIO high/low depending on the configuration, connects 3.3V to
// BOOT0's RC charging circuit, lets it charge the capacitor, and issue a system reset. See the QMK discord
// #hardware channel pins for an example circuit.
palSetPadMode(PAL_PORT(STM32_BOOTLOADER_DUAL_BANK_GPIO), PAL_PAD(STM32_BOOTLOADER_DUAL_BANK_GPIO), PAL_MODE_OUTPUT_PUSHPULL);
# if STM32_BOOTLOADER_DUAL_BANK_POLARITY
palSetPad(PAL_PORT(STM32_BOOTLOADER_DUAL_BANK_GPIO), PAL_PAD(STM32_BOOTLOADER_DUAL_BANK_GPIO));
# else
palClearPad(PAL_PORT(STM32_BOOTLOADER_DUAL_BANK_GPIO), PAL_PAD(STM32_BOOTLOADER_DUAL_BANK_GPIO));
# endif
// Wait for a while for the capacitor to charge
wait_ms(100);
// Issue a system reset to get the ROM bootloader to execute, with BOOT0 high
NVIC_SystemReset();
}
void enter_bootloader_mode_if_requested(void) {} // not needed at all, but if anybody attempts to invoke it....
#elif defined(STM32_BOOTLOADER_ADDRESS) // STM32_BOOTLOADER_DUAL_BANK
extern uint32_t __ram0_end__;
__attribute__((weak)) void bootloader_jump(void) {
*MAGIC_ADDR = BOOTLOADER_MAGIC; // set magic flag => reset handler will jump into boot loader
NVIC_SystemReset();
}
void enter_bootloader_mode_if_requested(void) {
unsigned long *check = MAGIC_ADDR;
if (*check == BOOTLOADER_MAGIC) {
*check = 0;
__set_CONTROL(0);
__set_MSP(*(__IO uint32_t *)STM32_BOOTLOADER_ADDRESS);
__enable_irq();
typedef void (*BootJump_t)(void);
BootJump_t boot_jump = *(BootJump_t *)(STM32_BOOTLOADER_ADDRESS + 4);
boot_jump();
while (1)
;
}
}
#elif defined(GD32VF103)
# define DBGMCU_KEY_UNLOCK 0x4B5A6978
# define DBGMCU_CMD_RESET 0x1
__IO uint32_t *DBGMCU_KEY = (uint32_t *)DBGMCU_BASE + 0x0CU;
__IO uint32_t *DBGMCU_CMD = (uint32_t *)DBGMCU_BASE + 0x08U;
__attribute__((weak)) void bootloader_jump(void) {
/* The MTIMER unit of the GD32VF103 doesn't have the MSFRST
* register to generate a software reset request.
* BUT instead two undocumented registers in the debug peripheral
* that allow issueing a software reset. WHO would need the MSFRST
* register anyway? Source:
* https://github.com/esmil/gd32vf103inator/blob/master/include/gd32vf103/dbg.h */
*DBGMCU_KEY = DBGMCU_KEY_UNLOCK;
*DBGMCU_CMD = DBGMCU_CMD_RESET;
}
void enter_bootloader_mode_if_requested(void) { /* Jumping to bootloader is not possible from user code. */
}
#elif defined(KL2x) || defined(K20x) || defined(MK66F18) || defined(MIMXRT1062) // STM32_BOOTLOADER_DUAL_BANK // STM32_BOOTLOADER_ADDRESS
/* Kinetis */
# if defined(BOOTLOADER_KIIBOHD)
/* Kiibohd Bootloader (MCHCK and Infinity KB) */
# define SCB_AIRCR_VECTKEY_WRITEMAGIC 0x05FA0000
const uint8_t sys_reset_to_loader_magic[] = "\xff\x00\x7fRESET TO LOADER\x7f\x00\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
__attribute__((weak)) void bootloader_jump(void) {
void *volatile vbat = (void *)VBAT;
__builtin_memcpy(vbat, (const void *)sys_reset_to_loader_magic, sizeof(sys_reset_to_loader_magic));
// request reset
SCB->AIRCR = SCB_AIRCR_VECTKEY_WRITEMAGIC | SCB_AIRCR_SYSRESETREQ_Msk;
}
# else /* defined(BOOTLOADER_KIIBOHD) */
/* Default for Kinetis - expecting an ARM Teensy */
# include "wait.h"
__attribute__((weak)) void bootloader_jump(void) {
wait_ms(100);
__BKPT(0);
}
# endif /* defined(BOOTLOADER_KIIBOHD) */
#else /* neither STM32 nor KINETIS */
__attribute__((weak)) void bootloader_jump(void) {}
#endif

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/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
#include <ch.h>
#define DBGMCU_KEY_UNLOCK 0x4B5A6978
#define DBGMCU_CMD_RESET 0x1
__IO uint32_t *DBGMCU_KEY = (uint32_t *)DBGMCU_BASE + 0x0CU;
__IO uint32_t *DBGMCU_CMD = (uint32_t *)DBGMCU_BASE + 0x08U;
__attribute__((weak))
void bootloader_jump(void) {
/* The MTIMER unit of the GD32VF103 doesn't have the MSFRST
* register to generate a software reset request.
* BUT instead two undocumented registers in the debug peripheral
* that allow issueing a software reset. WHO would need the MSFRST
* register anyway? Source:
* https://github.com/esmil/gd32vf103inator/blob/master/include/gd32vf103/dbg.h */
*DBGMCU_KEY = DBGMCU_KEY_UNLOCK;
*DBGMCU_CMD = DBGMCU_CMD_RESET;
}
/* Jumping to bootloader is not possible from user code. */
void enter_bootloader_mode_if_requested(void) { }

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/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
#include <ch.h>
#include "wait.h"
__attribute__((weak))
void bootloader_jump(void) {
wait_ms(100);
__BKPT(0);
}

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/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
#include <ch.h>
/* Kiibohd Bootloader (MCHCK and Infinity KB) */
#define SCB_AIRCR_VECTKEY_WRITEMAGIC 0x05FA0000
const uint8_t sys_reset_to_loader_magic[] = "\xff\x00\x7fRESET TO LOADER\x7f\x00\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
__attribute__((weak))
void bootloader_jump(void) {
void *volatile vbat = (void *)VBAT;
__builtin_memcpy(vbat, (const void *)sys_reset_to_loader_magic, sizeof(sys_reset_to_loader_magic));
// request reset
SCB->AIRCR = SCB_AIRCR_VECTKEY_WRITEMAGIC | SCB_AIRCR_SYSRESETREQ_Msk;
}

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/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
__attribute__((weak))
void bootloader_jump(void) { }

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platforms/chibios/bootloaders/stm32_dfu.c Normal file
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/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
#include <ch.h>
#include <hal.h>
#include "wait.h"
extern uint32_t __ram0_end__;
#ifndef STM32_BOOTLOADER_DUAL_BANK
# define STM32_BOOTLOADER_DUAL_BANK FALSE
#endif
#if STM32_BOOTLOADER_DUAL_BANK
# include "config_common.h"
# ifndef STM32_BOOTLOADER_DUAL_BANK_GPIO
# error "No STM32_BOOTLOADER_DUAL_BANK_GPIO defined, don't know which pin to toggle"
# endif
# ifndef STM32_BOOTLOADER_DUAL_BANK_POLARITY
# define STM32_BOOTLOADER_DUAL_BANK_POLARITY 0
# endif
# ifndef STM32_BOOTLOADER_DUAL_BANK_DELAY
# define STM32_BOOTLOADER_DUAL_BANK_DELAY 100000
# endif
__attribute__((weak))
void bootloader_jump(void) {
// For STM32 MCUs with dual-bank flash, and we're incapable of jumping to the bootloader. The first valid flash
// bank is executed unconditionally after a reset, so it doesn't enter DFU unless BOOT0 is high. Instead, we do
// it with hardware...in this case, we pull a GPIO high/low depending on the configuration, connects 3.3V to
// BOOT0's RC charging circuit, lets it charge the capacitor, and issue a system reset. See the QMK discord
// #hardware channel pins for an example circuit.
palSetPadMode(PAL_PORT(STM32_BOOTLOADER_DUAL_BANK_GPIO), PAL_PAD(STM32_BOOTLOADER_DUAL_BANK_GPIO), PAL_MODE_OUTPUT_PUSHPULL);
# if STM32_BOOTLOADER_DUAL_BANK_POLARITY
palSetPad(PAL_PORT(STM32_BOOTLOADER_DUAL_BANK_GPIO), PAL_PAD(STM32_BOOTLOADER_DUAL_BANK_GPIO));
# else
palClearPad(PAL_PORT(STM32_BOOTLOADER_DUAL_BANK_GPIO), PAL_PAD(STM32_BOOTLOADER_DUAL_BANK_GPIO));
# endif
// Wait for a while for the capacitor to charge
wait_ms(100);
// Issue a system reset to get the ROM bootloader to execute, with BOOT0 high
NVIC_SystemReset();
}
// not needed at all, but if anybody attempts to invoke it....
void enter_bootloader_mode_if_requested(void) { }
#else
/* This code should be checked whether it runs correctly on platforms */
#define SYMVAL(sym) (uint32_t)(((uint8_t *)&(sym)) - ((uint8_t *)0))
#define BOOTLOADER_MAGIC 0xDEADBEEF
#define MAGIC_ADDR (unsigned long *)(SYMVAL(__ram0_end__) - 4)
__attribute__((weak))
void bootloader_jump(void) {
*MAGIC_ADDR = BOOTLOADER_MAGIC; // set magic flag => reset handler will jump into boot loader
NVIC_SystemReset();
}
void enter_bootloader_mode_if_requested(void) {
unsigned long *check = MAGIC_ADDR;
if (*check == BOOTLOADER_MAGIC) {
*check = 0;
__set_CONTROL(0);
__set_MSP(*(__IO uint32_t *)STM32_BOOTLOADER_ADDRESS);
__enable_irq();
typedef void (*BootJump_t)(void);
BootJump_t boot_jump = *(BootJump_t *)(STM32_BOOTLOADER_ADDRESS + 4);
boot_jump();
while (1)
;
}
}
#endif

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/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
#include <ch.h>
__attribute__((weak))
void bootloader_jump(void) {
NVIC_SystemReset();
}

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/* Copyright 2021 QMK
*
* 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/>.
*/
#include "bootloader.h"
#include <ch.h>
// From tinyuf2's board_api.h
#define DBL_TAP_MAGIC 0xF01669EF
// defined by linker script
extern uint32_t _board_dfu_dbl_tap[];
#define DBL_TAP_REG _board_dfu_dbl_tap[0]
__attribute__((weak))
void bootloader_jump(void) {
DBL_TAP_REG = DBL_TAP_MAGIC;
NVIC_SystemReset();
}
/* not needed, no two-stage reset */
void enter_bootloader_mode_if_requested(void) { }

2
platforms/common.mk
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@ -4,7 +4,7 @@ TMK_COMMON_SRC += \
$(PLATFORM_COMMON_DIR)/platform.c \
$(PLATFORM_COMMON_DIR)/suspend.c \
$(PLATFORM_COMMON_DIR)/timer.c \
$(PLATFORM_COMMON_DIR)/bootloader.c \
$(PLATFORM_COMMON_DIR)/bootloaders/$(BOOTLOADER_TYPE).c
# Search Path
VPATH += $(PLATFORM_PATH)

2
platforms/test/bootloader.c → platforms/test/bootloaders/none.c
View File

@ -16,4 +16,4 @@
#include "bootloader.h"
void bootloader_jump(void) {}
void bootloader_jump(void) { }

1
tmk_core/protocol/arm_atsam/arm_atsam_protocol.h
View File

@ -19,7 +19,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#define _ARM_ATSAM_PROTOCOL_H_
#include "samd51j18a.h"
#include "md_bootloader.h"
#include "timer.h"
#include "d51_util.h"

24
tmk_core/protocol/arm_atsam/md_bootloader.h
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@ -1,24 +0,0 @@
#ifndef _MD_BOOTLOADER_H_
#define _MD_BOOTLOADER_H_
extern uint32_t _srom;
extern uint32_t _lrom;
extern uint32_t _erom;
#define BOOTLOADER_SERIAL_MAX_SIZE 20 // DO NOT MODIFY!
#ifdef KEYBOARD_massdrop_ctrl
// WARNING: These are only for CTRL bootloader release "v2.18Jun 22 2018 17:28:08" for bootloader_jump support
extern uint32_t _eram;
# define BOOTLOADER_MAGIC 0x3B9ACA00
# define MAGIC_ADDR (uint32_t *)((intptr_t)(&_eram) - 4)
#endif
#ifdef MD_BOOTLOADER
# define MCU_HZ 48000000
# define I2C_HZ 0 // Not used
#endif // MD_BOOTLOADER
#endif //_MD_BOOTLOADER_H_

6
tmk_core/protocol/arm_atsam/startup.c
View File

@ -28,7 +28,6 @@
*/
#include "samd51.h"
#include "md_bootloader.h"
/* Initialize segments */
extern uint32_t _sfixed;
@ -496,6 +495,11 @@ __attribute__((section(".vectors"))) const DeviceVectors exception_table = {
#endif
};
// WARNING: These are only for CTRL bootloader release "v2.18Jun 22 2018 17:28:08" for bootloader_jump support
extern uint32_t _eram;
#define BOOTLOADER_MAGIC 0x3B9ACA00
#define MAGIC_ADDR (uint32_t *)((intptr_t)(&_eram) - 4)
/**
* \brief This is the code that gets called on processor reset.
* To initialize the device, and call the main() routine.

5
tmk_core/protocol/arm_atsam/usb/udc.c
View File

@ -51,7 +51,8 @@
#include "udi_device_conf.h"
#include "udi.h"
#include "udc.h"
#include "md_bootloader.h"
#define BOOTLOADER_SERIAL_MAX_SIZE 20 // DO NOT MODIFY!
/**
* \ingroup udc_group
@ -122,6 +123,8 @@ static uint8_t udc_string_product_name[] = USB_DEVICE_PRODUCT_NAME;
# define USB_DEVICE_SERIAL_NAME_SIZE 0
#endif
extern uint32_t _srom;
uint8_t usb_device_serial_name_size = 0;
#if defined USB_DEVICE_SERIAL_USE_BOOTLOADER_SERIAL
uint8_t bootloader_serial_number[BOOTLOADER_SERIAL_MAX_SIZE + 1] = "";