| /* ---------------------------------------------------------------------------- |
| * ATMEL Microcontroller Software Support |
| * ---------------------------------------------------------------------------- |
| * Copyright (c) 2009, Atmel Corporation |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the disclaimer below. |
| * |
| * Atmel's name may not be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE |
| * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, |
| * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ---------------------------------------------------------------------------- |
| */ |
| |
| /*------------------------------------------------------------------------------ |
| * Headers |
| *------------------------------------------------------------------------------*/ |
| |
| #include "board.h" |
| |
| #include <string.h> |
| |
| /*------------------------------------------------------------------------------ |
| * Internal definitions |
| *------------------------------------------------------------------------------*/ |
| |
| /** Maximum ucSize in bytes of the smartcard answer to a command.*/ |
| #define MAX_ANSWER_SIZE 10 |
| |
| /** Maximum ATR ucSize in bytes.*/ |
| #define MAX_ATR_SIZE 55 |
| |
| /** USB states */ |
| /// Use for power management |
| #define STATE_IDLE 0 |
| /// The USB device is in suspend state |
| #define STATE_SUSPEND 4 |
| /// The USB device is in resume state |
| #define STATE_RESUME 5 |
| |
| /* WTX (Wait time extension): |
| * R-block PCB begins with (msb) 10 , ends with 000011 for WTX req, 100011 for WTX resp |
| * |
| * The standard says: |
| * Rule 3 β If the card requires more than BWT to process the previously received I-block, it transmits S(WTX |
| * request) where INF conveys one byte encoding an integer multiplier of the BWT value. The interface device |
| * shall acknowledge by S(WTX response) with the same INF. |
| * The time allocated starts at the leading edge of the last character of S(WTX response). |
| */ |
| // FIXME: Two times the same name for the define, which one is right? |
| //#define WTX_req 0b10000011 |
| //#define WTX_req 0b10100011 |
| // Alternatively: |
| /* For T = 0 Protocol: The firmware on receiving the NULL (0x60) Procedure byte from the card, notifies |
| it to the driver using the RDR_to_PC_DataBlock response. During this period, the reception of bytes |
| from the smart card is still in progress and hence the device cannot indefinitely wait for IN tokens on |
| the USB bulk-in endpoint. Hence, it is required of the driver to readily supply βINβ tokens on the USB |
| bulk-in endpoint. On failure to do so, some of the wait time extension responses, will not be queued to |
| the driver. |
| */ |
| extern volatile uint8_t timeout_occured; |
| |
| /*------------------------------------------------------------------------------ |
| * Internal variables |
| *------------------------------------------------------------------------------*/ |
| /** USB state: suspend, resume, idle */ |
| unsigned char USBState = STATE_IDLE; |
| |
| /** ISO7816 pins */ |
| static const Pin pinsISO7816_PHONE[] = {PINS_ISO7816_PHONE}; |
| /** Bus switch pins */ |
| |
| #if DEBUG_PHONE_SNIFF |
| # warning "Debug phone sniff via logic analyzer is enabled" |
| // Logic analyzer probes are easier to attach to the SIM card slot |
| static const Pin pins_bus[] = {PINS_BUS_SNIFF}; |
| #else |
| static const Pin pins_bus[] = {PINS_BUS_DEFAULT}; |
| #endif |
| |
| /** ISO7816 RST pin */ |
| static uint8_t sim_inserted = 0; |
| |
| static const Pin pPwr[] = { |
| /* Enable power converter 4.5-6V to 3.3V; low: off */ |
| {SIM_PWEN, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}, |
| |
| /* Enable second power converter: VCC_PHONE to VCC_SIM; high: off */ |
| {VCC_FWD, PIOA, ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT} |
| }; |
| |
| const Pin pinPhoneRST = PIN_ISO7816_RST_PHONE; |
| |
| static struct Usart_info usart_info = {.base = USART_PHONE, .id = ID_USART_PHONE, .state = USART_RCV}; |
| |
| /* ===================================================*/ |
| /* Taken from iso7816_4.c */ |
| /* ===================================================*/ |
| /** Flip flop for send and receive char */ |
| #define USART_SEND 0 |
| #define USART_RCV 1 |
| |
| // FIXME: Comments |
| /*----------------------------------------------------------------------------- |
| * Internal variables |
| *-----------------------------------------------------------------------------*/ |
| static uint8_t host_to_sim_buf[BUFLEN]; |
| static bool change_fidi = false; |
| |
| void receive_from_host( void ); |
| void sendResponse_to_phone( uint8_t *pArg, uint8_t status, uint32_t transferred, uint32_t remaining) |
| { |
| if (status != USBD_STATUS_SUCCESS) { |
| TRACE_ERROR("USB err status: %d (%s)\n", __FUNCTION__, status); |
| return; |
| } |
| TRACE_DEBUG("sendResp, stat: %X, trnsf: %x, rem: %x\n\r", status, transferred, remaining); |
| TRACE_DEBUG("Resp: %x %x %x .. %x\n", host_to_sim_buf[0], host_to_sim_buf[1], host_to_sim_buf[2], host_to_sim_buf[transferred-1]); |
| |
| USART_SetReceiverEnabled(USART_PHONE, 0); |
| USART_SetTransmitterEnabled(USART_PHONE, 1); |
| uint32_t i = 0; |
| if (host_to_sim_buf[0] == 0xff) { |
| printf("Change FIDI detected\n"); |
| // PTS command, change FIDI after command |
| i = 2; |
| change_fidi = true; |
| } |
| for (; i < transferred; i++ ) { |
| ISO7816_SendChar(host_to_sim_buf[i], &usart_info); |
| } |
| USART_SetTransmitterEnabled(USART_PHONE, 0); |
| USART_SetReceiverEnabled(USART_PHONE, 1); |
| |
| if (change_fidi == true) { |
| printf("Change FIDI: %x\n", host_to_sim_buf[2]); |
| update_fidi(host_to_sim_buf[2]); |
| change_fidi = false; |
| } |
| |
| receive_from_host(); |
| } |
| |
| void receive_from_host() |
| { |
| int ret; |
| if ((ret = USBD_Read(PHONE_DATAOUT, &host_to_sim_buf, sizeof(host_to_sim_buf), |
| (TransferCallback)&sendResponse_to_phone, 0)) == USBD_STATUS_SUCCESS) { |
| } else { |
| TRACE_ERROR("USB Err: %X\n", ret); |
| } |
| } |
| |
| void Phone_configure( void ) { |
| PIO_ConfigureIt( &pinPhoneRST, ISR_PhoneRST ) ; |
| NVIC_EnableIRQ( PIOA_IRQn ); |
| } |
| |
| void Phone_exit( void ) { |
| PIO_DisableIt( &pinPhoneRST ) ; |
| NVIC_DisableIRQ(USART1_IRQn); |
| USART_DisableIt( USART_PHONE, US_IER_RXRDY) ; |
| USART_SetTransmitterEnabled(USART_PHONE, 0); |
| USART_SetReceiverEnabled(USART_PHONE, 0); |
| } |
| |
| void Phone_init( void ) { |
| PIO_Configure( pinsISO7816_PHONE, PIO_LISTSIZE( pinsISO7816_PHONE ) ) ; |
| PIO_Configure( pins_bus, PIO_LISTSIZE( pins_bus) ) ; |
| |
| PIO_Configure( &pinPhoneRST, 1); |
| |
| PIO_EnableIt( &pinPhoneRST ) ; |
| ISO7816_Init(&usart_info, CLK_SLAVE); |
| |
| USART_SetTransmitterEnabled(USART_PHONE, 0); |
| USART_SetReceiverEnabled(USART_PHONE, 1); |
| |
| USART_EnableIt(USART_PHONE, US_IER_RXRDY); // TODO: interrupt enable/disable is shared with sniffer |
| NVIC_EnableIRQ(USART1_IRQn); |
| |
| /* Configure ISO7816 driver */ |
| // FIXME: PIO_Configure(pPwr, PIO_LISTSIZE( pPwr )); |
| |
| // FIXME: Or do I need to call VBUS_CONFIGURE() here instead, which will call USBD_Connect() later? |
| // USBD_Connect(); |
| |
| //Timer_Init(); |
| |
| receive_from_host(); |
| } |
| |
| |
| // Sniffed Phone to SIM card communication: |
| // phone > sim : RST |
| // phone < sim : ATR |
| // phone > sim : A0 A4 00 00 02 (Select File) |
| // phone < sim : A4 (INS repeated) |
| // phone > sim : 7F 02 (= ??) |
| // phone < sim : 9F 16 (9F: success, can deliver 0x16 (=22) byte) |
| // phone > sim : ?? (A0 C0 00 00 16) |
| // phone < sim : C0 (INS repeated) |
| // phone < sim : 00 00 00 00 7F 20 02 00 00 00 00 00 09 91 00 17 04 00 83 8A (data of length 22 -2) |
| // phone <? sim : 90 00 (OK, everything went fine) |
| // phone ? sim : 00 (??) |
| |
| void Phone_run( void ) |
| { |
| check_data_from_phone(); |
| } |