Christina Quast | c0aa769 | 2015-02-25 14:02:01 +0100 | [diff] [blame] | 1 | /* ---------------------------------------------------------------------------- |
| 2 | * ATMEL Microcontroller Software Support |
| 3 | * ---------------------------------------------------------------------------- |
| 4 | * Copyright (c) 2009, Atmel Corporation |
| 5 | * |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions are met: |
| 10 | * |
| 11 | * - Redistributions of source code must retain the above copyright notice, |
| 12 | * this list of conditions and the disclaimer below. |
| 13 | * |
| 14 | * Atmel's name may not be used to endorse or promote products derived from |
| 15 | * this software without specific prior written permission. |
| 16 | * |
| 17 | * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE |
| 20 | * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, |
| 23 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 24 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 25 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| 26 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | * ---------------------------------------------------------------------------- |
| 28 | */ |
| 29 | |
| 30 | /*------------------------------------------------------------------------------ |
| 31 | * Headers |
| 32 | *------------------------------------------------------------------------------*/ |
| 33 | |
| 34 | #include "board.h" |
Harald Welte | 1605564 | 2016-03-03 11:02:45 +0100 | [diff] [blame^] | 35 | #include "simtrace.h" |
| 36 | #include "ringbuffer.h" |
Harald Welte | 30a53f8 | 2015-11-08 14:29:55 +0100 | [diff] [blame] | 37 | #include "iso7816_fidi.h" |
Christina Quast | c0aa769 | 2015-02-25 14:02:01 +0100 | [diff] [blame] | 38 | |
| 39 | #include <string.h> |
Christina Quast | cb646bc | 2015-05-03 14:21:26 +0200 | [diff] [blame] | 40 | #include <errno.h> |
Christina Quast | c0aa769 | 2015-02-25 14:02:01 +0100 | [diff] [blame] | 41 | |
Christina Quast | 95d6616 | 2015-04-09 22:38:47 +0200 | [diff] [blame] | 42 | volatile uint32_t char_stat; |
Christina Quast | c0aa769 | 2015-02-25 14:02:01 +0100 | [diff] [blame] | 43 | |
Christina Quast | 4db82e0 | 2015-04-11 18:14:41 +0200 | [diff] [blame] | 44 | volatile ringbuf sim_rcv_buf = { {0}, 0, 0 }; |
Christina Quast | 4ba4d22 | 2015-03-02 16:14:09 +0100 | [diff] [blame] | 45 | |
Christina Quast | e4cbfe6 | 2015-04-20 13:07:28 +0200 | [diff] [blame] | 46 | /*----------------------------------------------------------------------------- |
| 47 | * Interrupt routines |
| 48 | *-----------------------------------------------------------------------------*/ |
Harald Welte | ec4fe23 | 2015-11-07 18:41:25 +0100 | [diff] [blame] | 49 | static void Callback_PhoneRST_ISR( uint8_t *pArg, uint8_t status, uint32_t transferred, uint32_t remaining) |
Christina Quast | e4cbfe6 | 2015-04-20 13:07:28 +0200 | [diff] [blame] | 50 | { |
| 51 | printf("rstCB\n\r"); |
| 52 | PIO_EnableIt( &pinPhoneRST ) ; |
| 53 | } |
| 54 | void ISR_PhoneRST( const Pin *pPin) |
| 55 | { |
| 56 | int ret; |
| 57 | // FIXME: no printfs in ISRs? |
| 58 | printf("+++ Int!! %x\n\r", pinPhoneRST.pio->PIO_ISR); |
| 59 | if ( ((pinPhoneRST.pio->PIO_ISR & pinPhoneRST.mask) != 0) ) |
| 60 | { |
| 61 | if(PIO_Get( &pinPhoneRST ) == 0) { |
| 62 | printf(" 0 "); |
| 63 | } else { |
| 64 | printf(" 1 "); |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | if ((ret = USBD_Write( PHONE_INT, "R", 1, (TransferCallback)&Callback_PhoneRST_ISR, 0 )) != USBD_STATUS_SUCCESS) { |
| 69 | TRACE_ERROR("USB err status: %d (%s)\n", ret, __FUNCTION__); |
| 70 | return; |
| 71 | } |
| 72 | |
| 73 | /* Interrupt enabled after ATR is sent to phone */ |
| 74 | PIO_DisableIt( &pinPhoneRST ) ; |
| 75 | } |
| 76 | |
Harald Welte | acd48c5 | 2016-03-02 10:34:24 +0100 | [diff] [blame] | 77 | extern void usart_irq_rx(uint8_t num); |
Christina Quast | 4db82e0 | 2015-04-11 18:14:41 +0200 | [diff] [blame] | 78 | /* |
| 79 | * char_stat is zero if no error occured. |
| 80 | * Otherwise it is filled with the content of the status register. |
Christina Quast | c0aa769 | 2015-02-25 14:02:01 +0100 | [diff] [blame] | 81 | */ |
Christina Quast | 4db82e0 | 2015-04-11 18:14:41 +0200 | [diff] [blame] | 82 | void USART1_IrqHandler( void ) |
| 83 | { |
Harald Welte | acd48c5 | 2016-03-02 10:34:24 +0100 | [diff] [blame] | 84 | #if 0 |
Christina Quast | 4db82e0 | 2015-04-11 18:14:41 +0200 | [diff] [blame] | 85 | uint32_t stat; |
Christina Quast | c0aa769 | 2015-02-25 14:02:01 +0100 | [diff] [blame] | 86 | char_stat = 0; |
| 87 | // Rcv buf full |
Christina Quast | 4db82e0 | 2015-04-11 18:14:41 +0200 | [diff] [blame] | 88 | /* if((stat & US_CSR_RXBUFF) == US_CSR_RXBUFF) { |
Christina Quast | c0aa769 | 2015-02-25 14:02:01 +0100 | [diff] [blame] | 89 | TRACE_DEBUG("Rcv buf full"); |
Christina Quast | 4db82e0 | 2015-04-11 18:14:41 +0200 | [diff] [blame] | 90 | USART_DisableIt(USART1, US_IDR_RXBUFF); |
| 91 | } |
| 92 | */ |
| 93 | uint32_t csr = USART_PHONE->US_CSR; |
Christina Quast | 4ba4d22 | 2015-03-02 16:14:09 +0100 | [diff] [blame] | 94 | |
Christina Quast | c0aa769 | 2015-02-25 14:02:01 +0100 | [diff] [blame] | 95 | if (csr & US_CSR_TXRDY) { |
Christina Quast | 4db82e0 | 2015-04-11 18:14:41 +0200 | [diff] [blame] | 96 | /* transmit buffer empty, nothing to transmit */ |
| 97 | } |
Christina Quast | c0aa769 | 2015-02-25 14:02:01 +0100 | [diff] [blame] | 98 | if (csr & US_CSR_RXRDY) { |
| 99 | stat = (csr&(US_CSR_OVRE|US_CSR_FRAME| |
Christina Quast | 4ba4d22 | 2015-03-02 16:14:09 +0100 | [diff] [blame] | 100 | US_CSR_PARE|US_CSR_TIMEOUT|US_CSR_NACK| |
| 101 | (1<<10))); |
Christina Quast | 2b8a18b | 2015-04-12 09:31:36 +0200 | [diff] [blame] | 102 | uint8_t c = (USART_PHONE->US_RHR) & 0xFF; |
Christina Quast | a1dd0ef | 2015-03-22 19:06:12 +0100 | [diff] [blame] | 103 | // printf(" %x", c); |
Christina Quast | 4ba4d22 | 2015-03-02 16:14:09 +0100 | [diff] [blame] | 104 | |
Christina Quast | c0aa769 | 2015-02-25 14:02:01 +0100 | [diff] [blame] | 105 | if (stat == 0 ) { |
Christina Quast | 4ba4d22 | 2015-03-02 16:14:09 +0100 | [diff] [blame] | 106 | /* Fill char into buffer */ |
Christina Quast | 2b8a18b | 2015-04-12 09:31:36 +0200 | [diff] [blame] | 107 | rbuf_write(&sim_rcv_buf, c); |
Christina Quast | 4ba4d22 | 2015-03-02 16:14:09 +0100 | [diff] [blame] | 108 | } else { |
Christina Quast | 4a30a37 | 2015-05-08 15:34:25 +0200 | [diff] [blame] | 109 | TRACE_DEBUG("e %x st: %x\n", c, stat); |
Christina Quast | 4ba4d22 | 2015-03-02 16:14:09 +0100 | [diff] [blame] | 110 | } /* else: error occured */ |
Christina Quast | c0aa769 | 2015-02-25 14:02:01 +0100 | [diff] [blame] | 111 | |
Christina Quast | 4ba4d22 | 2015-03-02 16:14:09 +0100 | [diff] [blame] | 112 | char_stat = stat; |
| 113 | } |
Harald Welte | acd48c5 | 2016-03-02 10:34:24 +0100 | [diff] [blame] | 114 | #else |
| 115 | usart_irq_rx(0); |
| 116 | #endif |
Christina Quast | 4ba4d22 | 2015-03-02 16:14:09 +0100 | [diff] [blame] | 117 | } |
Christina Quast | cb646bc | 2015-05-03 14:21:26 +0200 | [diff] [blame] | 118 | |
| 119 | /* FIDI update functions */ |
Christina Quast | cb646bc | 2015-05-03 14:21:26 +0200 | [diff] [blame] | 120 | void update_fidi(uint8_t fidi) |
| 121 | { |
| 122 | int rc; |
| 123 | |
| 124 | uint8_t fi = fidi >> 4; |
| 125 | uint8_t di = fidi & 0xf; |
| 126 | |
| 127 | rc = compute_fidi_ratio(fi, di); |
| 128 | if (rc > 0 && rc < 0x400) { |
| 129 | TRACE_INFO("computed Fi(%u) Di(%u) ratio: %d", fi, di, rc); |
| 130 | /* make sure UART uses new F/D ratio */ |
| 131 | USART_PHONE->US_CR |= US_CR_RXDIS | US_CR_RSTRX; |
| 132 | USART_PHONE->US_FIDI = rc & 0x3ff; |
| 133 | USART_PHONE->US_CR |= US_CR_RXEN | US_CR_STTTO; |
| 134 | } else |
| 135 | TRACE_INFO("computed FiDi ratio %d unsupported", rc); |
| 136 | } |