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cardem: use TC_ETU to trigger ATR sending

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this changes how ATR is handled.
the ATR is also printed when set (as important debug information).
the test is also updated to correspond to the new mechanism (
simulating the timeout before sending the ATR)

Change-Id: I69df797e2feadffa9f5f977cb71b69386cee7cd0
This commit is contained in:
Kévin Redon
2018-07-29 00:18:12 +02:00
parent d8ebd6ab77
commit ebe672e926
4 changed files with 104 additions and 30 deletions
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27
firmware/libcommon/source/mode_cardemu.c
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@@ -1,6 +1,7 @@
/* card emulation mode
*
* (C) 2015-2017 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
@@ -98,15 +99,11 @@ struct cardem_inst cardem_inst[] = {
static Usart *get_usart_by_chan(uint8_t uart_chan)
{
switch (uart_chan) {
case 0:
return USART1;
#ifdef CARDEMU_SECOND_UART
case 1:
return USART0;
#endif
if (uart_chan < ARRAY_SIZE(cardem_inst)) {
return cardem_inst[uart_chan].usart_info.base;
} else {
return NULL;
}
return NULL;
}
/***********************************************************************
@@ -244,6 +241,20 @@ int card_emu_uart_update_fidi(uint8_t uart_chan, unsigned int fidi)
return 0;
}
/* call-back from card_emu.c to force a USART interrupt */
void card_emu_uart_interrupt(uint8_t uart_chan)
{
Usart *usart = get_usart_by_chan(uart_chan);
if (!usart) {
return;
}
if (USART0 == usart) {
NVIC_SetPendingIRQ(USART0_IRQn);
} else if (USART1 == usart) {
NVIC_SetPendingIRQ(USART1_IRQn);
}
}
/***********************************************************************
* ADC for VCC voltage detection
***********************************************************************/