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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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76
firmware/libboard/ngff_cardem/source/card_pres.c Normal file
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/* card presence utilities
*
* (C) 2016-2021 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 <osmocom/core/timer.h>
#include "board.h"
#include "utils.h"
#include "card_pres.h"
#define NUM_CARDPRES 1
#define TIMER_INTERVAL_MS 500
static const Pin pin_cardpres[NUM_CARDPRES] = { PIN_DET_USIM1_PRES };
static int last_state[NUM_CARDPRES] = { -1 };
static struct osmo_timer_list cardpres_timer;
/* Determine if a SIM card is present in the given slot */
int is_card_present(int port)
{
const Pin *pin;
int present;
if (port < 0 || port >= NUM_CARDPRES)
return -1;
pin = &pin_cardpres[port];
/* high active here */
present = PIO_Get(pin);
return present;
}
static void cardpres_tmr_cb(void *data)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(pin_cardpres); i++) {
int state = is_card_present(i);
if (state != last_state[i]) {
TRACE_INFO("%u: Card Detect Status %d -> %d\r\n", i, last_state[i], state);
/* FIXME: report to USB host */
last_state[i] = state;
}
}
osmo_timer_schedule(&cardpres_timer, 0, TIMER_INTERVAL_MS*1000);
}
int card_present_init(void)
{
unsigned int i;
PIO_Configure(pin_cardpres, ARRAY_SIZE(pin_cardpres));
/* start timer */
cardpres_timer.cb = cardpres_tmr_cb;
osmo_timer_schedule(&cardpres_timer, 0, TIMER_INTERVAL_MS*1000);
return 2;
}