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/* SIMtrace with SAM3S specific application code
*
* (C) 2017 by Harald Welte <laforge@gnumonks.org>
* (C) 2018 by sysmocom -s.f.m.c. GmbH, Author: Kevin Redon <kredon@sysmocom.de>
*
* 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 <stdbool.h>
#include "board.h"
#include "simtrace.h"
#include "utils.h"
#include "sim_switch.h"
#include <osmocom/core/timer.h>
#include "usb_buf.h"
#include "i2c.h"
#include "mcp23017.h"
#include "mux.h"
static bool mcp2317_present = false;
void board_exec_dbg_cmd(int ch)
{
switch (ch) {
case '?':
printf("\t?\thelp\n\r");
printf("\t0-8\tselect physical SIM slot\n\r");
printf("\tR\treset SAM3\n\r");
printf("\tm\trun mcp23017 test\n\r");
printf("\ti\tset card insert via I2C\n\r");
printf("\tI\tdisable card insert\n\r");
break;
case '0': mux_set_slot(0); break;
case '1': mux_set_slot(1); break;
case '2': mux_set_slot(2); break;
case '3': mux_set_slot(3); break;
case '4': mux_set_slot(4); break;
case '5': mux_set_slot(5); break;
case '6': mux_set_slot(6); break;
case '7': mux_set_slot(7); break;
case 'R':
printf("Asking NVIC to reset us\n\r");
USBD_Disconnect();
NVIC_SystemReset();
break;
case 'm':
mcp23017_test(MCP23017_ADDRESS);
break;
case 'i':
printf("Setting card insert (slot=%u)\r\n", mux_get_slot());
mcp23017_set_output_a(MCP23017_ADDRESS, (1 << mux_get_slot()));
break;
case 'I':
printf("Releasing card insert (slot=%u)\r\n", mux_get_slot());
mcp23017_set_output_a(MCP23017_ADDRESS, 0);
break;
default:
printf("Unknown command '%c'\n\r", ch);
break;
}
}
void board_main_top(void)
{
#ifndef APPLICATION_dfu
usb_buf_init();
mux_init();
i2c_pin_init();
/* PORT A: all outputs, Port B0 output, B1..B7 unused */
if (mcp23017_init(MCP23017_ADDRESS, 0x00, 0xfe) == 0) {
mcp2317_present = true;
mcp23017_set_output_a(MCP23017_ADDRESS, 0);
}
/* Initialize checking for card insert/remove events */
//card_present_init();
#endif
}
int board_override_enter_dfu(void)
{
const Pin bl_sw_pin = PIN_BOOTLOADER_SW;
PIO_Configure(&bl_sw_pin, 1);
/* Enter DFU bootloader in case the respective button is pressed */
if (PIO_Get(&bl_sw_pin) == 0) {
/* do not print to early since the console is not initialized yet */
//printf("BOOTLOADER switch pressed -> Force DFU\n\r");
return 1;
} else
return 0;
}
void board_set_card_insert(struct cardem_inst *ci, bool card_insert)
{
int s = mux_get_slot();
/* A0 .. A7 of the MCP are each connected to the gate of a FET which closes
* the sim-present signal of the respective slot */
if (mcp2317_present) {
if (card_insert) {
/* we must enable card-presence of the active slot and disable it on all others */
mcp23017_set_output_a(MCP23017_ADDRESS, (1 << s));
} else {
/* we disable all card insert signals */
mcp23017_set_output_a(MCP23017_ADDRESS, 0);
}
} else {
TRACE_WARNING("No MCP23017 present; cannot set CARD_INSERT\r\n");
}
}
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