/* * This file is part of the Black Magic Debug project. * * Copyright (C) 2013 Gareth McMullin * * 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 "general.h" #include "usbdfu.h" #if defined(STM32F2) # include #elif defined(STM32F4) # include #endif #include static uint32_t sector_addr[] = { 0x8000000, 0x8004000, 0x8008000, 0x800c000, 0x8010000, 0x8020000, 0x8040000, 0x8060000, 0x8080000, 0x80a0000, 0x80c0000, 0x80e0000, 0x8100000, 0 }; static uint16_t sector_erase_time[12]= { 500, 500, 500, 500, 1100, 2600, 2600, 2600, 2600, 2600, 2600, 2600 }; static uint8_t sector_num = 0xff; /* Find the sector number for a given address*/ static void get_sector_num(uint32_t addr) { int i = 0; while(sector_addr[i+1]) { if (addr < sector_addr[i+1]) break; i++; } if (!sector_addr[i]) return; sector_num = i; } void dfu_check_and_do_sector_erase(uint32_t addr) { if(addr == sector_addr[sector_num]) { flash_erase_sector((sector_num & 0x1f)<<3, FLASH_PROGRAM_X32); } } void dfu_flash_program_buffer(uint32_t baseaddr, void *buf, int len) { for(int i = 0; i < len; i += 4) flash_program_word(baseaddr + i, *(uint32_t*)(buf+i), FLASH_PROGRAM_X32); } uint32_t dfu_poll_timeout(uint8_t cmd, uint32_t addr, uint16_t blocknum) { /* Erase for big pages on STM2/4 needs "long" time Try not to hit USB timeouts*/ if ((blocknum == 0) && (cmd == CMD_ERASE)) { get_sector_num(addr); if(addr == sector_addr[sector_num]) return sector_erase_time[sector_num]; } /* Programming 256 word with 100 us(max) per word*/ return 26; } void dfu_protect_enable(void) { #ifdef DFU_SELF_PROTECT if ((FLASH_OPTCR & 0x10000) != 0) { flash_program_option_bytes(FLASH_OPTCR & ~0x10000); flash_lock_option_bytes(); } #endif } void dfu_jump_app_if_valid(void) { /* Boot the application if it's valid */ /* Vector table may be anywhere in 128 kByte RAM CCM not handled*/ if((*(volatile uint32_t*)APP_ADDRESS & 0x2FFC0000) == 0x20000000) { /* Set vector table base address */ SCB_VTOR = APP_ADDRESS & 0x1FFFFF; /* Max 2 MByte Flash*/ /* Initialise master stack pointer */ asm volatile ("msr msp, %0"::"g" (*(volatile uint32_t*)APP_ADDRESS)); /* Jump to application */ (*(void(**)())(APP_ADDRESS + 4))(); } }