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https://gitea.osmocom.org/sim-card/simtrace2.git
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389a4040d5
in case flashing the main application firmware using DFU failed, the main application might be broken and not allow to switch again to DFU mode to re-flash it correctly. the other board have a way to force entering (e.g. staying in) the bootloader using an external signal (e.g. a switch on the SIMtrace board). the OWHW DFU firmware did not have this functionality implemented. the design (e.g. schematic) already has the SIMTRACE_BOOTLOADER signal (on PA31) for this purpose. now the DFU bootloader will start the DFU mode when the SIMTRACE_BOOTLOADER is high. this change has been tested on OWHWv2. Change-Id: Iefff51a811ad0f3bf3a46b8e256b905d11344bea
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/* Card simulator specific functions
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*
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* (C) 2015-2017 by Harald Welte <hwelte@hmw-consulting.de>
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* (C) 2018-2019, sysmocom -s.f.m.c. GmbH, Author: Kevin Redon <kredon@sysmocom.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
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*/
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#include "chip.h"
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#include "board.h"
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#include "utils.h"
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#include "usb_buf.h"
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static const Pin pins_cardsim[] = PINS_CARDSIM;
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void board_exec_dbg_cmd(int ch)
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{
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switch (ch) {
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case '?':
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printf("\t?\thelp\n\r");
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printf("\tR\treset SAM3\n\r");
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break;
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case 'R':
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printf("Asking NVIC to reset us\n\r");
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USBD_Disconnect();
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NVIC_SystemReset();
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break;
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default:
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printf("Unknown command '%c'\n\r", ch);
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break;
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}
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}
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void board_main_top(void)
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{
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#ifndef APPLICATION_dfu
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usb_buf_init();
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#endif
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}
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void cardsim_set_simpres(uint8_t slot, int present)
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{
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if (slot > 1)
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return;
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if (present)
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PIO_Set(&pins_cardsim[slot]);
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else
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PIO_Clear(&pins_cardsim[slot]);
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}
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void cardsim_gpio_init(void)
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{
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PIO_Configure(pins_cardsim, ARRAY_SIZE(pins_cardsim));
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}
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int board_override_enter_dfu(void)
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{
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const Pin bl_pin = PIN_BOOTLOADER;
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PIO_Configure(&bl_pin, 1);
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if (PIO_Get(&bl_pin) == 0) { // signal low
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return 0; // do not override enter DFU
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} else {
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return 1; // override enter DFU
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}
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}
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