mirror of https://gerrit.osmocom.org/simtrace2
384 lines
12 KiB
C
384 lines
12 KiB
C
/* sysmocom quad-modem sysmoQMOD application code
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*
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* (C) 2016-2017 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 "board.h"
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#include "simtrace.h"
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#include "utils.h"
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#include "led.h"
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#include "wwan_led.h"
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#include "wwan_perst.h"
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#include "sim_switch.h"
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#include "boardver_adc.h"
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#include "card_pres.h"
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#include <osmocom/core/timer.h>
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#include "usb_buf.h"
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static const Pin pin_hubpwr_override = PIN_PRTPWR_OVERRIDE;
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static const Pin pin_hub_rst = {PIO_PA13, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT};
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static const Pin pin_1234_detect = {PIO_PA14, PIOA, ID_PIOA, PIO_INPUT, PIO_PULLUP};
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static const Pin pin_peer_rst = {PIO_PA0, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT};
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static const Pin pin_peer_erase = {PIO_PA11, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT};
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/* array of generated USB Strings */
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extern unsigned char *usb_strings[];
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static int qmod_sam3_is_12(void)
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{
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if (PIO_Get(&pin_1234_detect) == 0)
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return 1;
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else
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return 0;
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}
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const unsigned char __eeprom_bin[256] = {
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USB_VENDOR_OPENMOKO & 0xff,
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USB_VENDOR_OPENMOKO >> 8,
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USB_PRODUCT_QMOD_HUB & 0xff,
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USB_PRODUCT_QMOD_HUB >> 8,
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0x00, 0x00, 0x9b, 0x20, 0x09, 0x00, 0x00, 0x00, 0x32, 0x32, 0x32, 0x32, /* 0x00 - 0x0f */
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0x32, 0x04, 0x09, 0x18, 0x0d, 0x00, 0x73, 0x00, 0x79, 0x00, 0x73, 0x00, 0x6d, 0x00, 0x6f, 0x00, /* 0x10 - 0x1f */
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0x63, 0x00, 0x6f, 0x00, 0x6d, 0x00, 0x20, 0x00, 0x2d, 0x00, 0x20, 0x00, 0x73, 0x00, 0x2e, 0x00, /* 0x20 - 0x2f */
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0x66, 0x00, 0x2e, 0x00, 0x6d, 0x00, 0x2e, 0x00, 0x63, 0x00, 0x2e, 0x00, 0x20, 0x00, 0x47, 0x00, /* 0x30 - 0x3f */
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0x6d, 0x00, 0x62, 0x00, 0x48, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x40 - 0x4f */
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0x00, 0x00, 0x00, 0x00, 0x71, 0x00, 0x75, 0x00, 0x61, 0x00, 0x64, 0x00, 0x20, 0x00, 0x6d, 0x00, /* 0x50 - 0x5f */
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0x6f, 0x00, 0x64, 0x00, 0x65, 0x00, 0x6d, 0x00, 0x20, 0x00, 0x76, 0x00, 0x32, 0x00, 0x00, 0x00, /* 0x60 - 0x6f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70 - 0x7f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x80 - 0x8f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x90 - 0x9f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0 - 0xaf */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0 - 0xbf */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0 - 0xcf */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0 - 0xdf */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe0 - 0xef */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA0, 0x56, 0x23, 0x71, 0x04, 0x00, /* 0xf0 - 0xff */
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};
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#include "i2c.h"
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static int write_hub_eeprom(void)
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{
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int i;
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/* wait */
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mdelay(100);
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TRACE_INFO("Writing EEPROM...\n\r");
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/* write the EEPROM once */
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for (i = 0; i < ARRAY_SIZE(__eeprom_bin); i++) {
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int rc = eeprom_write_byte(0x50, i, __eeprom_bin[i]);
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if (rc < 0) {
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TRACE_ERROR("Writing EEPROM failed at byte %u: 0x%02x\n\r",
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i, __eeprom_bin[i]);
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return 1;
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}
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}
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/* then pursue re-reading it again and again */
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TRACE_INFO("Verifying EEPROM...\n\r");
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for (i = 0; i < ARRAY_SIZE(__eeprom_bin); i++) {
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int byte = eeprom_read_byte(0x50, i);
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TRACE_DEBUG("0x%02x: %02x\n\r", i, byte);
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if (byte != __eeprom_bin[i])
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TRACE_ERROR("Byte %u is wrong, expected 0x%02x, found 0x%02x\n\r",
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i, __eeprom_bin[i], byte);
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}
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TRACE_INFO("EEPROM written\n\r");
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/* FIXME: Release PIN_PRTPWR_OVERRIDE after we know the hub is
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* again powering us up */
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return 0;
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}
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static int erase_hub_eeprom(void)
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{
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int i;
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/* wait */
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mdelay(100);
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TRACE_INFO("Erasing EEPROM...\n\r");
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/* write the EEPROM once */
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for (i = 0; i < 256; i++) {
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int rc = eeprom_write_byte(0x50, i, 0xff);
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if (rc < 0) {
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TRACE_ERROR("Erasing EEPROM failed at byte %u: 0x%02x\n\r",
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i, __eeprom_bin[i]);
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return 1;
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}
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}
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TRACE_INFO("EEPROM erased\n\r");
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return 0;
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}
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static void board_exec_dbg_cmd_st12only(int ch)
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{
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uint32_t addr, val;
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/* functions below only work on primary (ST12) */
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if (!qmod_sam3_is_12())
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return;
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switch (ch) {
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case 'E':
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write_hub_eeprom();
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break;
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case 'e':
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erase_hub_eeprom();
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break;
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case 'O':
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printf("Setting PRTPWR_OVERRIDE\n\r");
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PIO_Set(&pin_hubpwr_override);
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break;
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case 'o':
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printf("Clearing PRTPWR_OVERRIDE\n\r");
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PIO_Clear(&pin_hubpwr_override);
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break;
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case 'H':
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printf("Clearing _HUB_RESET -> HUB_RESET high (inactive)\n\r");
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PIO_Clear(&pin_hub_rst);
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break;
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case 'h':
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/* high level drives transistor -> HUB_RESET low */
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printf("Asserting _HUB_RESET -> HUB_RESET low (active)\n\r");
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PIO_Set(&pin_hub_rst);
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break;
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case 'w':
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if (PIO_GetOutputDataStatus(&pin_hub_rst) == 0)
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printf("WARNING: attempting EEPROM access while HUB not in reset\n\r");
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printf("Please enter EEPROM offset:\n\r");
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UART_GetIntegerMinMax(&addr, 0, 255);
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printf("Please enter EEPROM value:\n\r");
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UART_GetIntegerMinMax(&val, 0, 255);
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printf("Writing value 0x%02lx to EEPROM offset 0x%02lx\n\r", val, addr);
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eeprom_write_byte(0x50, addr, val);
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break;
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case 'r':
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printf("Please enter EEPROM offset:\n\r");
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UART_GetIntegerMinMax(&addr, 0, 255);
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printf("EEPROM[0x%02lx] = 0x%02x\n\r", addr, eeprom_read_byte(0x50, addr));
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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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/* returns '1' in case we should break any endless loop */
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void board_exec_dbg_cmd(int ch)
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{
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/* this variable controls if it is allowed to assert/release the ERASE line.
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this is done to prevent accidental ERASE on noisy serial input since only one character can trigger the ERASE.
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*/
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static bool allow_erase = false;
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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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printf("\tl\tswitch off LED 1\n\r");
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printf("\tL\tswitch off LED 1\n\r");
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printf("\tg\tswitch off LED 2\n\r");
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printf("\tG\tswitch off LED 2\n\r");
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if (qmod_sam3_is_12()) {
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printf("\tE\tprogram EEPROM\n\r");
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printf("\te\tErase EEPROM\n\r");
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printf("\tO\tEnable PRTPWR_OVERRIDE\n\r");
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printf("\to\tDisable PRTPWR_OVERRIDE\n\r");
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printf("\tH\tRelease HUB RESET (high)\n\r");
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printf("\th\tAssert HUB RESET (low)\n\r");
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printf("\tw\tWrite single byte in EEPROM\n\r");
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printf("\tr\tRead single byte from EEPROM\n\r");
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}
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printf("\tX\tRelease peer SAM3 from reset\n\r");
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printf("\tx\tAssert peer SAM3 reset\n\r");
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printf("\tY\tRelease peer SAM3 ERASE signal\n\r");
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printf("\ta\tAllow asserting peer SAM3 ERASE signal\n\r");
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printf("\ty\tAssert peer SAM3 ERASE signal\n\r");
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printf("\tU\tProceed to USB Initialization\n\r");
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printf("\t1\tGenerate 1ms reset pulse on WWAN1\n\r");
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printf("\t2\tGenerate 1ms reset pulse on WWAN2\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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case 'l':
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led_blink(LED_GREEN, BLINK_ALWAYS_OFF);
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printf("LED 1 switched off\n\r");
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break;
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case 'L':
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led_blink(LED_GREEN, BLINK_ALWAYS_ON);
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printf("LED 1 switched on\n\r");
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break;
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case 'g':
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led_blink(LED_RED, BLINK_ALWAYS_OFF);
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printf("LED 2 switched off\n\r");
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break;
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case 'G':
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led_blink(LED_RED, BLINK_ALWAYS_ON);
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printf("LED 2 switched on\n\r");
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break;
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case 'X':
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printf("Clearing _SIMTRACExx_RST -> SIMTRACExx_RST high (inactive)\n\r");
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PIO_Clear(&pin_peer_rst);
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break;
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case 'x':
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printf("Setting _SIMTRACExx_RST -> SIMTRACExx_RST low (active)\n\r");
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PIO_Set(&pin_peer_rst);
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break;
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case 'Y':
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printf("Clearing SIMTRACExx_ERASE (inactive)\n\r");
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PIO_Clear(&pin_peer_erase);
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break;
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case 'a':
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printf("Asserting SIMTRACExx_ERASE allowed on next command\n\r");
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allow_erase = true;
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break;
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case 'y':
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if (allow_erase) {
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printf("Setting SIMTRACExx_ERASE (active)\n\r");
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PIO_Set(&pin_peer_erase);
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} else {
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printf("Please first allow setting SIMTRACExx_ERASE\n\r");
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}
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break;
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case '1':
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printf("Resetting Modem 1 (of this SAM3)\n\r");
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wwan_perst_do_reset_pulse(0, 300);
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break;
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case '2':
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printf("Resetting Modem 2 (of this SAM3)\n\r");
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wwan_perst_do_reset_pulse(1, 300);
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break;
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case '!':
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sim_switch_use_physical(0, 0);
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break;
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case '@':
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sim_switch_use_physical(0, 0);
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break;
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default:
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if (!qmod_sam3_is_12())
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printf("Unknown command '%c'\n\r", ch);
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else
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board_exec_dbg_cmd_st12only(ch);
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break;
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}
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// set protection back so it can only run for one command
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if ('a' != ch) {
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allow_erase = false;
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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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wwan_led_init();
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wwan_perst_init();
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sim_switch_init();
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#endif
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/* make sure we can detect whether running in ST12 or ST34 */
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PIO_Configure(&pin_1234_detect, 1);
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if (qmod_sam3_is_12()) {
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/* set PIN_PRTPWR_OVERRIDE to output-low to avoid the internal
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* pull-up on the input to keep SIMTRACE12 alive */
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PIO_Configure(&pin_hubpwr_override, 1);
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PIO_Configure(&pin_hub_rst, 1);
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}
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PIO_Configure(&pin_peer_rst, 1);
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PIO_Configure(&pin_peer_erase, 1);
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#ifndef APPLICATION_dfu
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i2c_pin_init();
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#endif
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if (qmod_sam3_is_12()) {
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TRACE_INFO("Detected Quad-Modem ST12\n\r");
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} else {
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TRACE_INFO("Detected Quad-Modem ST34\n\r");
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/* make sure we use the second set of USB Strings
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* calling the interfaces "Modem 3" and "Modem 4" rather
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* than 1+2 */
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usb_strings[7] = usb_strings[9];
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usb_strings[8] = usb_strings[10];
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}
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/* Obtain the circuit board version (currently just prints voltage */
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get_board_version_adc();
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#ifndef APPLICATION_dfu
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/* Initialize checking for card insert/remove events */
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card_present_init();
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#endif
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}
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static int uart_has_loopback_jumper(void)
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{
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unsigned int i;
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const Pin uart_loopback_pins[] = {
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{PIO_PA9A_URXD0, PIOA, ID_PIOA, PIO_INPUT, PIO_DEFAULT},
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{PIO_PA10A_UTXD0, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
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};
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/* Configure UART pins as I/O */
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PIO_Configure(uart_loopback_pins, PIO_LISTSIZE(uart_loopback_pins));
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/* Send pattern over UART TX and check if it is received on RX
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* If the loop doesn't get interrupted, RxD always follows TxD and thus a
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* loopback jumper has been placed on RxD/TxD, and we will boot
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* into DFU unconditionally
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*/
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int has_loopback_jumper = 1;
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for (i = 0; i < 10; i++) {
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/* Set TxD high; abort if RxD doesn't go high either */
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PIO_Set(&uart_loopback_pins[1]);
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if (!PIO_Get(&uart_loopback_pins[0])) {
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has_loopback_jumper = 0;
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break;
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}
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/* Set TxD low, abort if RxD doesn't go low either */
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PIO_Clear(&uart_loopback_pins[1]);
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if (PIO_Get(&uart_loopback_pins[0])) {
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has_loopback_jumper = 0;
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break;
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}
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}
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/* Put pins back to UART mode */
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const Pin uart_pins[] = {PINS_UART};
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PIO_Configure(uart_pins, PIO_LISTSIZE(uart_pins));
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return has_loopback_jumper;
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}
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int board_override_enter_dfu(void)
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{
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/* If the loopback jumper is set, we enter DFU mode */
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if (uart_has_loopback_jumper())
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return 1;
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return 0;
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}
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