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simtrace2-cardem-pcsc: Reset the real card if reader resets cardem

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When the cardem detects a reset from the phone/modem, pass this on
to the actual card via the PC/SC reader.  This is important to
reset the card state whenever requested by the stack/driver on the
phone/modem.

Change-Id: I7056476c5f81e8aa8f550afb86bf2380d1497ebb
Depends: libosmocore 20199da02d37a6d284915a27ec12641e79b8781c
This commit is contained in:
Harald Welte
2021-06-01 20:29:40 +02:00
parent 644c2131ca
commit c1033c8611
1 changed files with 25 additions and 0 deletions
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25
host/src/simtrace2-cardem-pcsc.c
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@@ -74,6 +74,27 @@ static void cemu_flags2str(char *out, unsigned int out_len, uint32_t flags)
flags & CEMU_STATUS_F_RCEMU_ACTIVE ? "RCEMU " : "");
}
static uint32_t last_flags = 0;
static void update_flags(struct osmo_st2_cardem_inst *ci, uint32_t flags)
{
struct osim_card_hdl *card = ci->chan->card;
if ((flags & CEMU_STATUS_F_VCC_PRESENT) && (flags & CEMU_STATUS_F_CLK_ACTIVE) &&
!(flags & CEMU_STATUS_F_RESET_ACTIVE)) {
if (last_flags & CEMU_STATUS_F_RESET_ACTIVE) {
/* a reset has just ended, forward it to the real card */
bool cold_reset = true;
if (last_flags & CEMU_STATUS_F_VCC_PRESENT)
cold_reset = false;
LOGCI(ci, LOGL_NOTICE, "%s Resetting card in reader...\n",
cold_reset ? "Cold" : "Warm");
osim_card_reset(card, cold_reset);
}
}
last_flags = flags;
}
/***********************************************************************
* Incoming Messages
***********************************************************************/
@@ -89,6 +110,8 @@ static int process_do_status(struct osmo_st2_cardem_inst *ci, uint8_t *buf, int
status->flags, status->fi, status->di, status->wi,
status->waiting_time, fbuf);
update_flags(ci, status->flags);
return 0;
}
@@ -195,6 +218,8 @@ static int process_irq_status(struct osmo_st2_cardem_inst *ci, const uint8_t *bu
status->flags, status->fi, status->di, status->wi,
status->waiting_time, fbuf);
update_flags(ci, status->flags);
return 0;
}