opensteno_qmk/platforms/chibios/bootloaders/tinyuf2.c
2022-05-14 13:35:49 +10:00

38 lines
1.1 KiB
C

/* 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 mcu_reset(void) {
NVIC_SystemReset();
}
__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) {}