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introduce support for new ngff_cardem board

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This adds support for the new ngff_cardem board, a board that
basically combines a ngff breakout board with a built-in SIMtrace2.

Cardem works, but depending on the modem it might need a adjusted ATR to
ensure a lower baud  rate is used by the modem, high rates might lead
to weird power cycling of the card after a few transfers.

Trace was also tested and appears to work as expected.

Change-Id: Ia96124fbe8a752c98e7fd4096d542a3b2b9bc255
This commit is contained in:
Harald Welte
2021-07-02 15:02:33 +02:00
committed by laforge
parent 51d87fbb66
commit 4fe93be725
19 changed files with 798 additions and 8 deletions
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81
firmware/libboard/ngff_cardem/source/sim_switch.c Normal file
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/* Code to switch between local (physical) and remote (emulated) SIM
*
* (C) 2015-2017 by Harald Welte <hwelte@hmw-consulting.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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
*/
#include "board.h"
#include "trace.h"
#include "led.h"
#include "sim_switch.h"
//uart12bus 2-20e pa20
//uart22bus 1-20e pa28
//usim2bus 1-10e pa0 pivot
//sim det 2-10e pa13
static const Pin pins_default[] = {PINS_SIM_DEFAULT};
static const Pin pins_cem[] = {PINS_SIM_CARDEM};
static int initialized = 0;
int sim_switch_use_physical(unsigned int nr, int physical)
{
const Pin pin = PIN_MODEM_EN;// PIN_N_MODEM_PWR_ON;
enum led led;
if (!initialized) {
TRACE_ERROR("Somebody forgot to call sim_switch_init()\r\n");
sim_switch_init();
}
TRACE_INFO("Modem %d: %s SIM\n\r", nr,
physical ? "physical" : "virtual");
switch (nr) {
case 0:
led = LED_USIM1;
break;
default:
TRACE_ERROR("Invalid SIM%u\n\r", nr);
return -1;
}
if (physical) {
TRACE_INFO("%u: Use local/physical SIM\r\n", nr);
PIO_Configure(pins_default, PIO_LISTSIZE(pins_default));
led_blink(led, BLINK_ALWAYS_ON);
} else {
TRACE_INFO("%u: Use remote/emulated SIM\r\n", nr);
PIO_Configure(pins_cem, PIO_LISTSIZE(pins_cem));
led_blink(led, BLINK_ALWAYS_OFF);
}
/* just power cycle the modem because this circumvents weird issues with unreliable signals */
PIO_Clear(&pin);
mdelay(200);
PIO_Set(&pin);
return 0;
}
int sim_switch_init(void)
{
PIO_Configure(pins_default, PIO_LISTSIZE(pins_default));
initialized = 1;
return 1;
}