| /* ---------------------------------------------------------------------------- |
| * 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 |
| |
| /*------------------------------------------------------------------------------ |
| * Internal variables |
| *------------------------------------------------------------------------------*/ |
| /** USB state: suspend, resume, idle */ |
| unsigned char USBState = STATE_IDLE; |
| |
| /** ISO7816 pins */ |
| static const Pin pinsISO7816_PHONE[] = {PINS_ISO7816_PHONE}; |
| /** ISO7816 RST pin */ |
| static const Pin pinIso7816RstMC = PIN_ISO7816_RST_PHONE; |
| 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} |
| }; |
| |
| // SuperSIM ATR: 3B 9A 94 00 92 02 75 93 11 00 01 02 02 19 |
| static const uint8_t ATR[] = {0x3B, 0x9A, 0x94, 0x00, 0x92, 0x02, 0x75, 0x93, 0x11, 0x00, 0x01, 0x02, 0x02, 0x19}; |
| #define NONE 0 |
| #define SEND_ATR 1 |
| #define AFTER_ATR 2 |
| static uint8_t phone_state = NONE; |
| |
| |
| #define ISO7816_PHONE_RST {PIO_PA24, PIOA, ID_PIOA, PIO_INPUT, PIO_PULLUP | PIO_DEBOUNCE | PIO_DEGLITCH | PIO_IT_EDGE } |
| static const Pin pinPhoneRST = ISO7816_PHONE_RST; |
| //#define ISO7816_PHONE_CLK {PIO_PA23A_SCK1, PIOA, ID_PIOA, PIO_INPUT, PIO_PULLUP | PIO_DEBOUNCE | PIO_DEGLITCH | PIO_IT_EDGE } |
| //static const Pin pinPhoneClk = ISO7816_PHONE_CLK; |
| |
| /* ===================================================*/ |
| /* Taken from iso7816_4.c */ |
| /* ===================================================*/ |
| /** Flip flop for send and receive char */ |
| #define USART_SEND 0 |
| #define USART_RCV 1 |
| /*----------------------------------------------------------------------------- |
| * Internal variables |
| *-----------------------------------------------------------------------------*/ |
| /** Variable for state of send and receive froom USART */ |
| static uint8_t StateUsartGlobal = USART_RCV; |
| /** Pin reset master card */ |
| static Pin st_pinIso7816RstMC; |
| |
| static uint32_t char_stat = 0; |
| static char rcvdChar = 0; |
| |
| /*----------------------------------------------------------------------------- |
| * Interrupt routines |
| *-----------------------------------------------------------------------------*/ |
| /* |
| * char_stat is zero if no error occured. |
| * Otherwise it is filled with the content of the status register. |
| */ |
| void USART1_IrqHandler( void ) |
| { |
| uint32_t stat; |
| // printf(":>"); |
| char_stat = 0; |
| return; |
| // Rcv buf full |
| /* if((stat & US_CSR_RXBUFF) == US_CSR_RXBUFF) { |
| TRACE_DEBUG("Rcv buf full"); |
| USART_DisableIt(USART1, US_IDR_RXBUFF); |
| } |
| */ |
| uint32_t csr = USART_PHONE->US_CSR; |
| |
| if (csr & US_CSR_TXRDY) { |
| /* transmit buffer empty, nothing to transmit */ |
| } |
| |
| stat = (csr&(US_CSR_OVRE|US_CSR_FRAME| |
| US_CSR_PARE|US_CSR_TIMEOUT|US_CSR_NACK| |
| (1<<10))); |
| |
| if (stat == 0 ) { |
| /* Get a char */ |
| rcvdChar = ((USART_PHONE->US_RHR) & 0xFF); |
| } /* else: error occured */ |
| char_stat = stat; |
| } |
| |
| static void ISR_PhoneRST( const Pin *pPin) |
| { |
| TRACE_DEBUG("+++++++++ Interrupt!! ISR:0x%x, CSR:0x%x\n\r", pinPhoneRST.pio->PIO_ISR, USART1->US_CSR); |
| phone_state = SEND_ATR; |
| PIO_DisableIt( &pinPhoneRST ) ; |
| } |
| |
| static void Config_PhoneRST_IrqHandler() |
| { |
| PIO_Configure( &pinPhoneRST, 1); |
| // PIO_Configure( &pinPhoneClk, 1); |
| PIO_ConfigureIt( &pinPhoneRST, ISR_PhoneRST ) ; |
| // PIO_ConfigureIt( &pinPhoneClk, ISR_PhoneRST ) ; |
| PIO_EnableIt( &pinPhoneRST ) ; |
| // PIO_EnableIt( &pinPhoneClk ) ; |
| NVIC_EnableIRQ( PIOA_IRQn ); |
| } |
| |
| /** |
| * Get a character from ISO7816 |
| * \param pCharToReceive Pointer for store the received char |
| * \return 0: if timeout else status of US_CSR |
| */ |
| static uint32_t ISO7816_GetChar( uint8_t *pCharToReceive ) |
| { |
| uint32_t status; |
| uint32_t timeout=0; |
| |
| TRACE_DEBUG("--"); |
| |
| if( StateUsartGlobal == USART_SEND ) { |
| while((USART_PHONE->US_CSR & US_CSR_TXEMPTY) == 0) {} |
| USART_PHONE->US_CR = US_CR_RSTSTA | US_CR_RSTIT | US_CR_RSTNACK; |
| StateUsartGlobal = USART_RCV; |
| } |
| |
| /* Wait USART ready for reception */ |
| while( ((USART_PHONE->US_CSR & US_CSR_RXRDY) == 0) ) { |
| if(timeout++ > 12000 * (BOARD_MCK/1000000)) { |
| TRACE_DEBUG("TimeOut\n\r"); |
| return( 0 ); |
| } |
| } |
| |
| /* At least one complete character has been received and US_RHR has not yet been read. */ |
| |
| /* Get a char */ |
| *pCharToReceive = ((USART_PHONE->US_RHR) & 0xFF); |
| |
| status = (USART_PHONE->US_CSR&(US_CSR_OVRE|US_CSR_FRAME| |
| US_CSR_PARE|US_CSR_TIMEOUT|US_CSR_NACK| |
| (1<<10))); |
| |
| if (status != 0 ) { |
| TRACE_DEBUG("R:0x%X\n\r", status); |
| TRACE_DEBUG("R:0x%X\n\r", USART_PHONE->US_CSR); |
| TRACE_DEBUG("Nb:0x%X\n\r", USART_PHONE->US_NER ); |
| USART_PHONE->US_CR = US_CR_RSTSTA; |
| } |
| |
| /* Return status */ |
| return( status ); |
| } |
| |
| /** |
| * Send a char to ISO7816 |
| * \param CharToSend char to be send |
| * \return status of US_CSR |
| */ |
| static uint32_t ISO7816_SendChar( uint8_t CharToSend ) |
| { |
| uint32_t status; |
| |
| TRACE_DEBUG("********** Send char: %c (0x%X)\n\r", CharToSend, CharToSend); |
| |
| if( StateUsartGlobal == USART_RCV ) { |
| USART_PHONE->US_CR = US_CR_RSTSTA | US_CR_RSTIT | US_CR_RSTNACK; |
| StateUsartGlobal = USART_SEND; |
| } |
| |
| /* Wait USART ready for transmit */ |
| while((USART_PHONE->US_CSR & US_CSR_TXRDY) == 0) {} |
| /* There is no character in the US_THR */ |
| |
| /* Transmit a char */ |
| USART_PHONE->US_THR = CharToSend; |
| |
| status = (USART_PHONE->US_CSR&(US_CSR_OVRE|US_CSR_FRAME| |
| US_CSR_PARE|US_CSR_TIMEOUT|US_CSR_NACK| |
| (1<<10))); |
| |
| if (status != 0 ) { |
| TRACE_DEBUG("******* status: 0x%X (Overrun: %d, NACK: %d, Timeout: %d, underrun: %d)\n\r", |
| status, ((status & US_CSR_OVRE)>> 5), ((status & US_CSR_NACK) >> 13), |
| ((status & US_CSR_TIMEOUT) >> 8), ((status & (1 << 10)) >> 10)); |
| |
| TRACE_DEBUG("E (USART CSR reg):0x%X\n\r", USART_PHONE->US_CSR); |
| TRACE_DEBUG("Nb (Number of errors):0x%X\n\r", USART_PHONE->US_NER ); |
| USART_PHONE->US_CR = US_CR_RSTSTA; |
| } |
| |
| /* Return status */ |
| return( status ); |
| } |
| |
| |
| /** Initializes a ISO driver |
| * \param pPinIso7816RstMC Pin ISO 7816 Rst MC |
| */ |
| void _ISO7816_Init( const Pin pPinIso7816RstMC ) |
| { |
| TRACE_DEBUG("ISO_Init\n\r"); |
| |
| /* Pin ISO7816 initialize */ |
| st_pinIso7816RstMC = pPinIso7816RstMC; |
| |
| USART_Configure( USART_PHONE, |
| US_MR_USART_MODE_IS07816_T_0 |
| // Nope, we aren't master: |
| // | US_MR_USCLKS_MCK |
| | US_MR_USCLKS_SCK |
| | US_MR_NBSTOP_1_BIT |
| | US_MR_PAR_EVEN |
| | US_MR_CHRL_8_BIT |
| | US_MR_CLKO /** TODO: This field was set in the original simtrace firmware..why? */ |
| | (3<<24), /* MAX_ITERATION */ |
| 1, |
| 0); |
| /* |
| SYNC = 0 (async mode) |
| OVER = 0 (oversampling by 8?) |
| FIDI = 372 (default val on startup before other value is negotiated) |
| USCLKS = 3 (Select SCK as input clock) --> US_MR_USCLKS_SCK |
| CD = 1 ? --> US_BRGR_CD(1) |
| */ |
| USART_PHONE->US_FIDI = 372; |
| // USART_PHONE->US_IDR = (uint32_t) -1; |
| USART_PHONE->US_BRGR = US_BRGR_CD(1); |
| // USART_PHONE->US_BRGR = BOARD_MCK / (372*9600); |
| USART_PHONE->US_TTGR = 5; |
| |
| /* Configure USART */ |
| PMC_EnablePeripheral(ID_USART_PHONE); |
| |
| // USART_EnableIt( USART1, US_IER_RXRDY|US_IER_TXRDY) ; |
| /* enable USART1 interrupt */ |
| //NVIC_EnableIRQ( USART1_IRQn ) ; |
| |
| // USART_PHONE->US_IER = US_IER_RXRDY | US_IER_OVRE | US_IER_FRAME | US_IER_PARE | US_IER_NACK | US_IER_ITER; |
| |
| USART_SetTransmitterEnabled(USART_PHONE, 1); |
| //USART_SetReceiverEnabled(USART_PHONE, 1); |
| |
| } |
| |
| /*------------------------------------------------------------------------------ |
| * Main |
| *------------------------------------------------------------------------------*/ |
| |
| /** |
| * Initializes the DBGU and ISO7816 driver, and starts some tests. |
| * \return Unused (ANSI-C compatibility) |
| */ |
| extern int main( void ) |
| { |
| uint8_t pAtr[MAX_ATR_SIZE] ; |
| uint8_t ucSize ; |
| static uint8_t buff[100]; |
| |
| LED_Configure(LED_NUM_GREEN); |
| LED_Set(LED_NUM_GREEN); |
| |
| /* Disable watchdog*/ |
| WDT_Disable( WDT ) ; |
| |
| PIO_InitializeInterrupts(0); |
| |
| /* Configure ISO7816 driver */ |
| PIO_Configure( pinsISO7816_PHONE, PIO_LISTSIZE( pinsISO7816_PHONE ) ) ; |
| PIO_Configure(pPwr, PIO_LISTSIZE( pPwr )); |
| |
| Config_PhoneRST_IrqHandler(); |
| |
| _ISO7816_Init(pinIso7816RstMC); |
| |
| // FIXME: Or do I need to call VBUS_CONFIGURE() here instead, which will call USBD_Connect() later? |
| // USBD_Connect(); |
| // FIXME: USB clock? USB PMC? |
| // NVIC_EnableIRQ( UDP_IRQn ); |
| |
| |
| |
| // USART_EnableIt( USART_PHONE, US_IER_RXRDY) ; |
| |
| // FIXME: At some point USBD_IrqHandler() should get called and set USBD_STATE_CONFIGURED |
| /* while (USBD_GetState() < USBD_STATE_CONFIGURED) { |
| int i = 1; |
| if ((i%10000) == 0) { |
| TRACE_DEBUG("%d: USB State: %x\n\r", i, USBD_GetState()); |
| } |
| i++; |
| } |
| */ |
| printf("***** START \n\r"); |
| TRACE_DEBUG("%s", "Start while loop\n\r"); |
| while (1) { |
| // printf(".\n\r"); |
| |
| uint8_t j; |
| /* for( j=0; j < 100; j++ ) { |
| // ISO7816_GetChar(&buff[j++]); |
| } |
| */ |
| // for( j=0; j < 1000; j++ ) { |
| /* printf("0x%x ", buff[j++]); |
| if ((j % 40)==0) { |
| printf("\n\r"); |
| } |
| */ |
| // } |
| //ISO7816_GetChar(&buff[0]); |
| //printf("buf: 0x%x\n\r", buff[0]); |
| |
| uint32_t ret=-1; |
| |
| if (phone_state == SEND_ATR) { |
| printf("*"); |
| TRACE_DEBUG("Send char %x %x %x ..", ATR[0], ATR[1], ATR[2]); |
| for (j=0; j < sizeof(ATR)/sizeof(ATR[0]); j++) { |
| ret = ISO7816_SendChar(ATR[j]); |
| TRACE_DEBUG("ret: 0x%x\n\r", ret); |
| } |
| phone_state = AFTER_ATR; |
| PIO_EnableIt( &pinPhoneRST ) ; |
| } else { |
| // printf("Nothing to do\n\r"); |
| } |
| if (rcvdChar != 0) { |
| printf("Received _%x_ ", rcvdChar); |
| } |
| } |
| return 0 ; |
| } |