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Structure build system to build for multiple boards/apps/environments
This commit is contained in:
Harald Welte
188
firmware/libcommon/source/ccid.c
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188
firmware/libcommon/source/ccid.c
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/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2009, Atmel Corporation
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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#ifdef HAVE_CCID
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/*------------------------------------------------------------------------------
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* Headers
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*------------------------------------------------------------------------------*/
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#include "board.h"
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#include <string.h>
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/*------------------------------------------------------------------------------
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* Internal definitions
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*------------------------------------------------------------------------------*/
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/** Maximum ucSize in bytes of the smartcard answer to a command.*/
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#define MAX_ANSWER_SIZE 10
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/** Maximum ATR ucSize in bytes.*/
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#define MAX_ATR_SIZE 55
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/*------------------------------------------------------------------------------
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* Internal variables
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*------------------------------------------------------------------------------*/
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/** ISO7816 pins */
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static const Pin pinsISO7816[] = { PINS_ISO7816 };
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/** Bus switch pins */
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static const Pin pinsBus[] = { PINS_BUS_DEFAULT };
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/* SIMcard power pin */
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static const Pin pinsPower[] = { PWR_PINS };
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/** ISO7816 RST pin */
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static const Pin pinIso7816RstMC = PIN_ISO7816_RSTMC;
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static uint8_t sim_inserted = 0;
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static struct Usart_info usart_info = {
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.base = USART_SIM,
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.id = ID_USART_SIM,
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.state = USART_RCV
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};
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/*------------------------------------------------------------------------------
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* Optional smartcard detection
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*------------------------------------------------------------------------------*/
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/** Smartcard detection pin.*/
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static const Pin pinSmartCard = SMARTCARD_CONNECT_PIN;
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/**
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* PIO interrupt service routine. Checks if the smartcard has been connected
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* or disconnected.
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*/
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static void ISR_PioSmartCard(const Pin * pPin)
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{
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/* FIXME: why is pinSmartCard.pio->PIO_ISR the wrong number?
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printf("+++++ Trying to check for pending interrupts (PIO ISR: 0x%X)\n\r", pinSmartCard.pio->PIO_ISR);
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printf("+++++ Mask: 0x%X\n\r", pinSmartCard.mask);
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Output:
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+++++ Trying to check for pending interrupts (PIO ISR: 0x400)) = 1<<10
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+++++ Mask: 0x100 = 1<<8
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*/
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// PA10 is DTXD, which is the debug uart transmit pin
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printf("Interrupt!!\n\r");
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/* Check all pending interrupts */
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// FIXME: this if condition is not always true...
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// if ( (pinSmartCard.pio->PIO_ISR & pinSmartCard.mask) != 0 )
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{
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/* Check current level on pin */
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if (PIO_Get(&pinSmartCard) == 0) {
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sim_inserted = 1;
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printf("-I- Smartcard inserted\n\r");
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CCID_Insertion();
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} else {
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sim_inserted = 0;
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printf("-I- Smartcard removed\n\r");
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CCID_Removal();
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}
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}
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}
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/**
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* Configures the smartcard detection pin to trigger an interrupt.
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*/
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static void ConfigureCardDetection(void)
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{
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printf("+++++ Configure PIOs\n\r");
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PIO_Configure(&pinSmartCard, 1);
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NVIC_EnableIRQ(PIOA_IRQn);
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PIO_EnableIt(&pinSmartCard);
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}
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/*-----------------------------------------------------------------------------
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* Initialization and run
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*-----------------------------------------------------------------------------*/
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extern CCIDDriverConfigurationDescriptors configurationDescriptorCCID;
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void CCID_configure(void)
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{
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CCIDDriver_Initialize();
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// FIXME: Do we need to set priority?: NVIC_SetPriority( PIOA_IRQn, 10);
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PIO_ConfigureIt(&pinSmartCard, ISR_PioSmartCard);
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}
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void CCID_exit(void)
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{
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PIO_DisableIt(&pinSmartCard);
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USART_SetTransmitterEnabled(usart_info.base, 0);
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USART_SetReceiverEnabled(usart_info.base, 0);
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}
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void CCID_init(void)
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{
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uint8_t pAtr[MAX_ATR_SIZE];
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uint8_t ucSize;
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// FIXME: do we want to print ATR?
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/* Initialize Atr buffer */
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memset(pAtr, 0, sizeof(pAtr));
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ConfigureCardDetection();
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// Configure ISO7816 driver
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PIO_Configure(pinsISO7816, PIO_LISTSIZE(pinsISO7816));
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PIO_Configure(pinsBus, PIO_LISTSIZE(pinsBus));
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PIO_Configure(pinsPower, PIO_LISTSIZE(pinsPower));
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/* power up the card */
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// PIO_Set(&pinsPower[0]);
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ISO7816_Init(&usart_info, CLK_MASTER);
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USART_SetTransmitterEnabled(usart_info.base, 1);
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USART_SetReceiverEnabled(usart_info.base, 1);
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ISO7816_Set_Reset_Pin(&pinIso7816RstMC);
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/* Read ATR */
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ISO7816_warm_reset();
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ISO7816_Datablock_ATR(pAtr, &ucSize);
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/* Decode ATR and print it */
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ISO7816_Decode_ATR(pAtr);
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// FIXME. what if smcard is not inserted?
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if (PIO_Get(&pinSmartCard) == 0) {
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printf("SIM card inserted\n\r");
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CCID_Insertion();
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}
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}
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void CCID_run(void)
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{
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//if (USBD_Read(INT, pBuffer, dLength, fCallback, pArgument);
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CCID_SmartCardRequest();
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}
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#endif
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