From 25f849b397b409e7f8331abe5edacfde80ec0845 Mon Sep 17 00:00:00 2001 From: Joy Lee Date: Tue, 19 Apr 2022 19:21:12 +0800 Subject: Update wb32-dfu (#16438) --- platforms/chibios/bootloaders/wb32_dfu.c | 49 ++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 platforms/chibios/bootloaders/wb32_dfu.c (limited to 'platforms/chibios/bootloaders/wb32_dfu.c') diff --git a/platforms/chibios/bootloaders/wb32_dfu.c b/platforms/chibios/bootloaders/wb32_dfu.c new file mode 100644 index 0000000000..70b18f0228 --- /dev/null +++ b/platforms/chibios/bootloaders/wb32_dfu.c @@ -0,0 +1,49 @@ +/* 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 . + */ + +#include "bootloader.h" + +#include +#include +#include "wait.h" + +extern uint32_t __ram0_end__; + +/* 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 *)WB32_BOOTLOADER_ADDRESS); + __enable_irq(); + + typedef void (*BootJump_t)(void); + BootJump_t boot_jump = *(BootJump_t *)(WB32_BOOTLOADER_ADDRESS + 4); + boot_jump(); + while (1) + ; + } +} -- cgit v1.2.3