eccb9d3d3b
Fix merged code to be C99 compiliant. Try to fix dev_arygon under linux (could not be tested here, sorry). Try to fix MacOSX makefile (could not be tested here, sorry). Adjust src/Makefile.am to compile/dist all new files.
139 lines
4.2 KiB
C
139 lines
4.2 KiB
C
/*
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Public platform independent Near Field Communication (NFC) library
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Copyright (C) 2009, Roel Verdult
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "dev_arygon.h"
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#include "rs232.h"
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#include "bitutils.h"
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#ifdef _WIN32
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#define SERIAL_STRING "COM"
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#else
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#ifdef __APPLE__
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#define SERIAL_STRING "/dev/tty.SLAB_USBtoUART"
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#else
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#define SERIAL_STRING "/dev/ttyUSB"
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#endif
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#endif
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#define BUFFER_LENGTH 256
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#define USB_TIMEOUT 30000
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static byte abtTxBuf[BUFFER_LENGTH] = { 0x32, 0x00, 0x00, 0xff }; // Every packet must start with "00 00 ff"
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dev_info* dev_arygon_connect(const uint32_t uiIndex)
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{
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uint32_t uiDevNr;
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serial_port sp;
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char acConnect[BUFFER_LENGTH];
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dev_info* pdi = INVALID_DEVICE_INFO;
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#ifdef DEBUG
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printf("Trying to find ARYGON device on serial port: %s#\n",SERIAL_STRING);
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#endif
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// I have no idea how MAC OS X deals with multiple devices, so a quick workaround
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for (uiDevNr=0; uiDevNr<MAX_DEVICES; uiDevNr++)
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{
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#ifdef __APPLE__
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strcpy(acConnect,SERIAL_STRING);
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sp = rs232_open(acConnect);
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#else
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sprintf(acConnect,"%s%d",SERIAL_STRING,uiDevNr);
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sp = rs232_open(acConnect);
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#endif
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if ((sp != INVALID_SERIAL_PORT) && (sp != CLAIMED_SERIAL_PORT)) break;
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#ifdef DEBUG
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if (sp == INVALID_SERIAL_PORT) printf("invalid serial port: %s\n",acConnect);
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if (sp == CLAIMED_SERIAL_PORT) printf("serial port already claimed: %s\n",acConnect);
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#endif
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}
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// Test if we have found a device
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if (uiDevNr == MAX_DEVICES) return INVALID_DEVICE_INFO;
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#ifdef DEBUG
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printf("Succesfully connected to: %s\n",acConnect);
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#endif
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// We have a connection
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pdi = malloc(sizeof(dev_info));
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strcpy(pdi->acName,"ARYGON");
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pdi->ct = CT_PN532;
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pdi->ds = (dev_spec)sp;
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pdi->bActive = true;
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pdi->bCrc = true;
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pdi->bPar = true;
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pdi->ui8TxBits = 0;
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return pdi;
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}
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void dev_arygon_disconnect(dev_info* pdi)
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{
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rs232_close((serial_port)pdi->ds);
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free(pdi);
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}
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bool dev_arygon_transceive(const dev_spec ds, const byte* pbtTx, const uint32_t uiTxLen, byte* pbtRx, uint32_t* puiRxLen)
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{
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byte abtRxBuf[BUFFER_LENGTH];
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uint32_t uiRxBufLen = BUFFER_LENGTH;
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uint32_t uiPos;
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// Packet length = data length (len) + checksum (1) + end of stream marker (1)
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abtTxBuf[4] = uiTxLen;
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// Packet length checksum
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abtTxBuf[5] = BUFFER_LENGTH - abtTxBuf[4];
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// Copy the PN53X command into the packet buffer
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memmove(abtTxBuf+6,pbtTx,uiTxLen);
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// Calculate data payload checksum
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abtTxBuf[uiTxLen+6] = 0;
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for(uiPos=0; uiPos < uiTxLen; uiPos++)
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{
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abtTxBuf[uiTxLen+6] -= abtTxBuf[uiPos+6];
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}
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// End of stream marker
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abtTxBuf[uiTxLen+7] = 0;
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#ifdef DEBUG
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printf("Tx: ");
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print_hex(abtTxBuf,uiTxLen+8);
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#endif
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if (!rs232_send((serial_port)ds,abtTxBuf,uiTxLen+8)) return false;
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if (!rs232_receive((serial_port)ds,abtRxBuf,&uiRxBufLen)) return false;
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#ifdef DEBUG
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printf("Rx: ");
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print_hex(abtRxBuf,uiRxBufLen);
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#endif
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// When the answer should be ignored, just return a succesful result
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if(pbtRx == NULL || puiRxLen == NULL) return true;
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// Only succeed when the result is at least 00 00 ff 00 ff 00 00 00 FF xx Fx Dx xx .. .. .. xx 00 (x = variable)
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if(uiRxBufLen < 15) return false;
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// Remove the preceding and appending bytes 00 00 ff 00 ff 00 00 00 FF xx Fx .. .. .. xx 00 (x = variable)
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*puiRxLen = uiRxBufLen - 15;
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memcpy(pbtRx, abtRxBuf+13, *puiRxLen);
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return true;
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}
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