1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/* sysmocom ngff-cardem application code
*
* (C) 2021 Harald Welte <laforge@osmocom.org>
*
* 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 2 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.
*/
#include "board.h"
#include "simtrace.h"
#include "utils.h"
#include "led.h"
#include "wwan_led.h"
#include "wwan_perst.h"
#include "sim_switch.h"
#include "boardver_adc.h"
#include "card_pres.h"
#include <osmocom/core/timer.h>
#include "usb_buf.h"
/* array of generated USB Strings */
extern unsigned char *usb_strings[];
/* returns '1' in case we should break any endless loop */
void board_exec_dbg_cmd(int ch)
{
switch (ch) {
case '?':
printf("\t?\thelp\n\r");
printf("\tR\treset SAM3\n\r");
printf("\tl\tswitch off LED 1\n\r");
printf("\tL\tswitch on LED 1\n\r");
printf("\tg\tswitch off LED 2\n\r");
printf("\tG\tswitch on LED 2\n\r");
printf("\t1\tGenerate 1ms reset pulse on WWAN1\n\r");
printf("\t!\tSwitch Channel A from physical -> remote\n\r");
printf("\tt\t(pseudo)talloc report\n\r");
break;
case 'R':
printf("Asking NVIC to reset us\n\r");
USBD_Disconnect();
NVIC_SystemReset();
break;
case 'l':
led_blink(LED_GREEN, BLINK_ALWAYS_OFF);
printf("LED 1 switched off\n\r");
break;
case 'L':
led_blink(LED_GREEN, BLINK_ALWAYS_ON);
printf("LED 1 switched on\n\r");
break;
case 'g':
led_blink(LED_RED, BLINK_ALWAYS_OFF);
printf("LED 2 switched off\n\r");
break;
case 'G':
led_blink(LED_RED, BLINK_ALWAYS_ON);
printf("LED 2 switched on\n\r");
break;
case '1':
printf("Resetting Modem\n\r");
wwan_perst_do_reset_pulse(0, 300);
break;
case '!':
sim_switch_use_physical(0, 0);
break;
case 't':
talloc_report(NULL, stdout);
break;
default:
printf("Unknown command '%c'\n\r", ch);
break;
}
}
void board_main_top(void)
{
#ifndef APPLICATION_dfu
usb_buf_init();
wwan_led_init();
wwan_perst_init();
sim_switch_init();
#endif
/* Obtain the circuit board version (currently just prints voltage) */
get_board_version_adc();
#ifndef APPLICATION_dfu
/* Initialize checking for card insert/remove events */
card_present_init();
#endif
wwan_perst_set(0, 0);
}
static int uart_has_loopback_jumper(void)
{
unsigned int i;
const Pin uart_loopback_pins[] = {
{PIO_PA9A_URXD0, PIOA, ID_PIOA, PIO_INPUT, PIO_DEFAULT},
{PIO_PA10A_UTXD0, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
};
/* Configure UART pins as I/O */
PIO_Configure(uart_loopback_pins, PIO_LISTSIZE(uart_loopback_pins));
/* Send pattern over UART TX and check if it is received on RX
* If the loop doesn't get interrupted, RxD always follows TxD and thus a
* loopback jumper has been placed on RxD/TxD, and we will boot
* into DFU unconditionally
*/
int has_loopback_jumper = 1;
for (i = 0; i < 10; i++) {
/* Set TxD high; abort if RxD doesn't go high either */
PIO_Set(&uart_loopback_pins[1]);
if (!PIO_Get(&uart_loopback_pins[0])) {
has_loopback_jumper = 0;
break;
}
/* Set TxD low, abort if RxD doesn't go low either */
PIO_Clear(&uart_loopback_pins[1]);
if (PIO_Get(&uart_loopback_pins[0])) {
has_loopback_jumper = 0;
break;
}
}
/* Put pins back to UART mode */
const Pin uart_pins[] = {PINS_UART};
PIO_Configure(uart_pins, PIO_LISTSIZE(uart_pins));
return has_loopback_jumper;
}
int board_override_enter_dfu(void)
{
/* If the loopback jumper is set, we enter DFU mode */
if (uart_has_loopback_jumper())
return 1;
return 0;
}
static const Pin deton = {PIO_PA13, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT};
static const Pin detoff = {PIO_PA13, PIOA, ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT};
void board_set_card_insert(struct cardem_inst *ci, bool card_insert)
{
PIO_Configure(card_insert ? &deton : &detoff, 1);
}
|
