mirror of
https://gitea.osmocom.org/sim-card/simtrace2.git
synced 2026-03-17 13:48:32 +03:00
76c2eebae2
the reset/ATR handling has been heavily updated/fixed. instead of using the timer counter peripheral to handle the waiting time and corresponding timeout, the USART peripheral internal timeout mechanism is used. this is particularly important for the SIMtrace board since the clock signal is not connected to the timer counter. thus this change adds card emulation support for SIMtrace boards. Fi and Di have been properly rename to F and D since the "i" stands only for an "indicated" value, not the actual value. this does not change the USB protocol (the variable have just been renamed). additional variables store more information about the card capabilities NOTE: it has only be tested for the SIMtrace board Change-Id: Ibcb2c8cace9137695adf5fb3de43566f7cfb93b5
90 lines
3.4 KiB
C
90 lines
3.4 KiB
C
/* ISO7816-3 state machine for the card side
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*
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* (C) 2010-2017 by Harald Welte <hwelte@hmw-consulting.de>
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* (C) 2018 by sysmocom -s.f.m.c. GmbH, Author: Kevin Redon <kredon@sysmocom.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
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*/
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#pragma once
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#include <stdint.h>
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struct card_handle;
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enum card_io {
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CARD_IO_VCC,
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CARD_IO_RST,
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CARD_IO_CLK,
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};
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struct card_handle *card_emu_init(uint8_t slot_num, uint8_t tc_chan, uint8_t uart_chan,
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uint8_t in_ep, uint8_t irq_ep);
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/* process a single byte received from the reader */
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void card_emu_process_rx_byte(struct card_handle *ch, uint8_t byte);
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/* transmit a single byte to the reader */
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int card_emu_tx_byte(struct card_handle *ch);
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/* hardware driver informs us that a card I/O signal has changed */
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void card_emu_io_statechg(struct card_handle *ch, enum card_io io, int active);
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/* User sets a new ATR to be returned during next card reset */
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int card_emu_set_atr(struct card_handle *ch, const uint8_t *atr, uint8_t len);
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struct llist_head *card_emu_get_uart_tx_queue(struct card_handle *ch);
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void card_emu_have_new_uart_tx(struct card_handle *ch);
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void card_emu_report_status(struct card_handle *ch);
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/*! call when the waiting time has half-expired
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* param[in] ch card for which the waiting time half expired
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*/
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void card_emu_wt_halfed(struct card_handle *ch);
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/*! call when the waiting time has expired
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* param[in] ch card for which the waiting time expired
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*/
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void card_emu_wt_expired(struct card_handle *ch);
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#define ENABLE_TX 0x01
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#define ENABLE_RX 0x02
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// the following functions are callbacks implement in mode_cardemu.c
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/*! update F and D on USART peripheral
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* @param[in] usart USART peripheral to configure
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* @param[in] f clock rate conversion integer F value
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* @param[in] d baud rate adjustment factor D value
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* @note this should happen after reset and protocol select (through PPS or implicit)
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*/
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void card_emu_uart_update_fd(uint8_t uart_chan, uint16_t f, uint8_t d);
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/*! update WT on USART peripheral
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* @param[in] usart USART peripheral to configure
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* @param[in] wt inactivity Waiting Time before card_emu_wt_expired is called (0 to disable)
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*/
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void card_emu_uart_update_wt(uint8_t uart_chan, uint32_t wt);
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/*! reset waiting timeout count down on USART peripheral
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* @param[in] usart USART peripheral to configure
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*/
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void card_emu_uart_reset_wt(uint8_t uart_chan);
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/*! set I/O line high
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* @param[in] usart USART peripheral to configure
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* @param[in] set if I/O line should be set high (true), or cleared low (false)
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*/
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void card_emu_uart_io_set(uint8_t uart_chan, bool set);
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int card_emu_uart_tx(uint8_t uart_chan, uint8_t byte);
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void card_emu_uart_enable(uint8_t uart_chan, uint8_t rxtx);
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void card_emu_uart_wait_tx_idle(uint8_t uart_chan);
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void card_emu_uart_interrupt(uint8_t uart_chan);
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