diff --git a/src/dev_arygon.c b/src/dev_arygon.c new file mode 100644 index 0000000..63da211 --- /dev/null +++ b/src/dev_arygon.c @@ -0,0 +1,139 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#include "dev_arygon.h" +#include "rs232.h" +#include "bitutils.h" + +#ifdef _WIN32 + #define SERIAL_STRING "COM" +#endif +#ifdef _LINUX + #define SERIAL_STRING "/dev/ttyusb" +#endif +#ifdef __APPLE__ + #define SERIAL_STRING "/dev/tty.SLAB_USBtoUART" +#endif + +#define BUFFER_LENGTH 256 +#define USB_TIMEOUT 30000 +static byte abtTxBuf[BUFFER_LENGTH] = { 0x32, 0x00, 0x00, 0xff }; // Every packet must start with "00 00 ff" + +dev_info* dev_arygon_connect(const ui32 uiIndex) +{ + ui32 uiDevNr; + serial_port sp; + char acConnect[BUFFER_LENGTH]; + dev_info* pdi = INVALID_DEVICE_INFO; + +#ifdef _LIBNFC_VERBOSE_ + printf("Trying to find ARYGON device on serial port: %s#\n",SERIAL_STRING); +#endif + + // I have no idea how MAC OS X deals with multiple devices, so a quick workaround + for (uiDevNr=0; uiDevNracName,"ARYGON"); + pdi->ct = CT_PN532; + pdi->ds = (dev_spec)sp; + pdi->bActive = true; + pdi->bCrc = true; + pdi->bPar = true; + pdi->ui8TxBits = 0; + return pdi; +} + +void dev_arygon_disconnect(dev_info* pdi) +{ + rs232_close((serial_port)pdi->ds); + free(pdi); +} + +bool dev_arygon_transceive(const dev_spec ds, const byte* pbtTx, const ui32 uiTxLen, byte* pbtRx, ui32* puiRxLen) +{ + byte abtRxBuf[BUFFER_LENGTH]; + ui32 uiRxBufLen = BUFFER_LENGTH; + ui32 uiPos; + + // Packet length = data length (len) + checksum (1) + end of stream marker (1) + abtTxBuf[4] = uiTxLen; + // Packet length checksum + abtTxBuf[5] = BUFFER_LENGTH - abtTxBuf[4]; + // Copy the PN53X command into the packet buffer + memmove(abtTxBuf+6,pbtTx,uiTxLen); + + // Calculate data payload checksum + abtTxBuf[uiTxLen+6] = 0; + for(uiPos=0; uiPos < uiTxLen; uiPos++) + { + abtTxBuf[uiTxLen+6] -= abtTxBuf[uiPos+6]; + } + + // End of stream marker + abtTxBuf[uiTxLen+7] = 0; + +#ifdef _LIBNFC_VERBOSE_ + printf("Tx: "); + print_hex(abtTxBuf,uiTxLen+8); +#endif + if (!rs232_send((serial_port)ds,abtTxBuf,uiTxLen+8)) return false; + + if (!rs232_receive((serial_port)ds,abtRxBuf,&uiRxBufLen)) return false; + + +#ifdef _LIBNFC_VERBOSE_ + printf("Rx: "); + print_hex(abtRxBuf,uiRxBufLen); +#endif + + // When the answer should be ignored, just return a succesful result + if(pbtRx == null || puiRxLen == null) return true; + + // 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) + if(uiRxBufLen < 15) return false; + + // Remove the preceding and appending bytes 00 00 ff 00 ff 00 00 00 FF xx Fx .. .. .. xx 00 (x = variable) + *puiRxLen = uiRxBufLen - 15; + memcpy(pbtRx, abtRxBuf+13, *puiRxLen); + + return true; +} diff --git a/src/dev_arygon.h b/src/dev_arygon.h new file mode 100644 index 0000000..a1dfd2d --- /dev/null +++ b/src/dev_arygon.h @@ -0,0 +1,35 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#ifndef _LIBNFC_DEV_ARYGON_H_ +#define _LIBNFC_DEV_ARYGON_H_ + +#include "defines.h" +#include "types.h" + +// Functions used by developer to handle connection to this device +dev_info* dev_arygon_connect(const ui32 uiIndex); +void dev_arygon_disconnect(dev_info* pdi); + +// Callback function used by libnfc to transmit commands to the PN53X chip +bool dev_arygon_transceive(const dev_spec ds, const byte* pbtTx, const ui32 uiTxLen, byte* pbtRx, ui32* puiRxLen); + +#endif // _LIBNFC_DEV_ARYGON_H_ + diff --git a/src/dev_pn531.c b/src/dev_pn531.c index ba84cfd..ad2d5fd 100644 --- a/src/dev_pn531.c +++ b/src/dev_pn531.c @@ -41,7 +41,7 @@ typedef struct { } dev_spec_pn531; // Find transfer endpoints for bulk transfers -void get_end_points(struct usb_device *dev, dev_spec_pn531* pdsp) +static void get_end_points(struct usb_device *dev, dev_spec_pn531* pdsp) { uint32_t uiIndex; uint32_t uiEndPoint; @@ -80,6 +80,8 @@ dev_info* dev_pn531_connect(const uint32_t uiIndex) { int idvendor = 0x04CC; int idproduct = 0x0531; + int idvendor_alt = 0x054c; + int idproduct_alt = 0x0193; struct usb_bus *bus; struct usb_device *dev; dev_info* pdi = INVALID_DEVICE_INFO; @@ -102,7 +104,8 @@ dev_info* dev_pn531_connect(const uint32_t uiIndex) { for (dev = bus->devices; dev; dev = dev->next) { - if (idvendor==dev->descriptor.idVendor && idproduct==dev->descriptor.idProduct) + if ((idvendor==dev->descriptor.idVendor && idproduct==dev->descriptor.idProduct) || + (idvendor_alt==dev->descriptor.idVendor && idproduct_alt==dev->descriptor.idProduct)) { // Make sure there are 2 endpoints available if (dev->config->interface->altsetting->bNumEndpoints < 2) return pdi; diff --git a/src/dev_pn533.c b/src/dev_pn533.c new file mode 100644 index 0000000..9493994 --- /dev/null +++ b/src/dev_pn533.c @@ -0,0 +1,256 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +Thanks to d18c7db and Okko for example code + +*/ + +#include "defines.h" + +#include +#include +#include +#include "dev_pn533.h" +#include "bitutils.h" + +#define BUFFER_LENGTH 256 +#define USB_TIMEOUT 30000 +static char buffer[BUFFER_LENGTH] = { 0x00, 0x00, 0xff }; // Every packet must start with "00 00 ff" + +typedef struct { + usb_dev_handle* pudh; + ui32 uiEndPointIn; + ui32 uiEndPointOut; +} dev_spec_pn533; + +// Find transfer endpoints for bulk transfers +static void get_end_points(struct usb_device *dev, dev_spec_pn533* pdsp) +{ + ui32 uiIndex; + ui32 uiEndPoint; + struct usb_interface_descriptor* puid = dev->config->interface->altsetting; + + // 3 Endpoints maximum: Interrupt In, Bulk In, Bulk Out + for(uiIndex = 0; uiIndex < puid->bNumEndpoints; uiIndex++) + { + // Only accept bulk transfer endpoints (ignore interrupt endpoints) + if(puid->endpoint[uiIndex].bmAttributes != USB_ENDPOINT_TYPE_BULK) continue; + + // Copy the endpoint to a local var, makes it more readable code + uiEndPoint = puid->endpoint[uiIndex].bEndpointAddress; + + // Test if we dealing with a bulk IN endpoint + if((uiEndPoint & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_IN) + { + #ifdef _LIBNFC_VERBOSE_ + printf("Bulk endpoint in : 0x%02X\n", uiEndPoint); + #endif + pdsp->uiEndPointIn = uiEndPoint; + } + + // Test if we dealing with a bulk OUT endpoint + if((uiEndPoint & USB_ENDPOINT_DIR_MASK) == USB_ENDPOINT_OUT) + { + #ifdef _LIBNFC_VERBOSE_ + printf("Bulk endpoint in : 0x%02X\n", uiEndPoint); + #endif + pdsp->uiEndPointOut = uiEndPoint; + } + } +} + +dev_info* dev_pn533_connect(const ui32 uiIndex) +{ + int idvendor = 0x04e6; + int idproduct = 0x5591; + struct usb_bus *bus; + struct usb_device *dev; + dev_info* pdi = INVALID_DEVICE_INFO; + dev_spec_pn533* pdsp; + dev_spec_pn533 dsp; + ui32 uiDevIndex; + + dsp.uiEndPointIn = 0; + dsp.uiEndPointOut = 0; + dsp.pudh = null; + + usb_init(); + if (usb_find_busses() < 0) return INVALID_DEVICE_INFO; + if (usb_find_devices() < 0) return INVALID_DEVICE_INFO; + + // Initialize the device index we are seaching for + uiDevIndex = uiIndex; + + for (bus = usb_get_busses(); bus; bus = bus->next) + { + for (dev = bus->devices; dev; dev = dev->next) + { + if (idvendor==dev->descriptor.idVendor && idproduct==dev->descriptor.idProduct) + { + // Make sure there are 2 endpoints available + if (dev->config->interface->altsetting->bNumEndpoints < 2) return pdi; + + // Test if we are looking for this device according to the current index + if (uiDevIndex != 0) + { + // Nope, we maybe want the next one, let's try to find another + uiDevIndex--; + continue; + } + #ifdef _LIBNFC_VERBOSE_ + printf("Found PN533 device\n"); + #endif + + // Open the PN533 USB device + dsp.pudh = usb_open(dev); + + get_end_points(dev,&dsp); + if(usb_set_configuration(dsp.pudh,1) < 0) + { + #ifdef _LIBNFC_VERBOSE_ + printf("Setting config failed\n"); + #endif + usb_close(dsp.pudh); + return INVALID_DEVICE_INFO; + } + + if(usb_claim_interface(dsp.pudh,0) < 0) + { + #ifdef _LIBNFC_VERBOSE_ + printf("Can't claim interface\n"); + #endif + usb_close(dsp.pudh); + return INVALID_DEVICE_INFO; + } + // Allocate memory for the device info and specification, fill it and return the info + pdsp = malloc(sizeof(dev_spec_pn533)); + *pdsp = dsp; + pdi = malloc(sizeof(dev_info)); + strcpy(pdi->acName,"PN533USB"); + pdi->ct = CT_PN533; + pdi->ds = (dev_spec)pdsp; + pdi->bActive = true; + pdi->bCrc = true; + pdi->bPar = true; + pdi->ui8TxBits = 0; + return pdi; + } + } + } + return pdi; +} + +void dev_pn533_disconnect(dev_info* pdi) +{ + dev_spec_pn533* pdsp = (dev_spec_pn533*)pdi->ds; + usb_release_interface(pdsp->pudh,0); + usb_close(pdsp->pudh); + free(pdi->ds); + free(pdi); +} + +bool dev_pn533_transceive(const dev_spec ds, const byte* pbtTx, const ui32 uiTxLen, byte* pbtRx, ui32* puiRxLen) +{ + ui32 uiPos = 0; + int ret = 0; + char buf[BUFFER_LENGTH]; + dev_spec_pn533* pdsp = (dev_spec_pn533*)ds; + + // Packet length = data length (len) + checksum (1) + end of stream marker (1) + buffer[3] = uiTxLen; + // Packet length checksum + buffer[4] = BUFFER_LENGTH - buffer[3]; + // Copy the PN53X command into the packet buffer + memmove(buffer+5,pbtTx,uiTxLen); + + // Calculate data payload checksum + buffer[uiTxLen+5] = 0; + for(uiPos=0; uiPos < uiTxLen; uiPos++) + { + buffer[uiTxLen+5] -= buffer[uiPos+5]; + } + + // End of stream marker + buffer[uiTxLen+6] = 0; + + #ifdef _LIBNFC_VERBOSE_ + printf("Tx: "); + print_hex((byte*)buffer,uiTxLen+7); + #endif + + ret = usb_bulk_write(pdsp->pudh, pdsp->uiEndPointOut, buffer, uiTxLen+7, USB_TIMEOUT); + if( ret < 0 ) + { + #ifdef _LIBNFC_VERBOSE_ + printf("usb_bulk_write failed with error %d\n", ret); + #endif + return false; + } + + ret = usb_bulk_read(pdsp->pudh, pdsp->uiEndPointIn, buf, BUFFER_LENGTH, USB_TIMEOUT); + if( ret < 0 ) + { + #ifdef _LIBNFC_VERBOSE_ + printf( "usb_bulk_read failed with error %d\n", ret); + #endif + return false; + } + + #ifdef _LIBNFC_VERBOSE_ + printf("Rx: "); + print_hex((byte*)buf,ret); + #endif + + if( ret == 6 ) + { + ret = usb_bulk_read(pdsp->pudh, pdsp->uiEndPointIn, buf, BUFFER_LENGTH, USB_TIMEOUT); + if( ret < 0 ) + { + #ifdef _LIBNFC_VERBOSE_ + printf("usb_bulk_read failed with error %d\n", ret); + #endif + return false; + } + + #ifdef _LIBNFC_VERBOSE_ + printf("Rx: "); + print_hex((byte*)buf,ret); + #endif + } + + // When the answer should be ignored, just return a succesful result + if(pbtRx == null || puiRxLen == null) return true; + + // Only succeed when the result is at least 00 00 FF xx Fx Dx xx .. .. .. xx 00 (x = variable) + if(ret < 9) return false; + + // Remove the preceding and appending bytes 00 00 FF xx Fx .. .. .. xx 00 (x = variable) + *puiRxLen = ret - 7 - 2; + + // Get register: nuke extra byte (awful hack) + if ((buf[5]==(char)0xd5) && (buf[6]==(char)0x07) && (*puiRxLen==2)) { + // printf("Got %02x %02x, keep %02x\n", buf[7], buf[8], buf[8]); + *puiRxLen = (*puiRxLen) - 1; + memcpy( pbtRx, buf + 8, *puiRxLen); + return true; + } + + memcpy( pbtRx, buf + 7, *puiRxLen); + + return true; +} diff --git a/src/dev_pn533.h b/src/dev_pn533.h new file mode 100644 index 0000000..387c549 --- /dev/null +++ b/src/dev_pn533.h @@ -0,0 +1,35 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#ifndef _LIBNFC_DEV_PN533_H_ +#define _LIBNFC_DEV_PN533_H_ + +#include "defines.h" +#include "types.h" + +// Functions used by developer to handle connection to this device +dev_info* dev_pn533_connect(const ui32 uiIndex); +void dev_pn533_disconnect(dev_info* pdi); + +// Callback function used by libnfc to transmit commands to the PN53X chip +bool dev_pn533_transceive(const dev_spec ds, const byte* pbtTx, const ui32 uiTxLen, byte* pbtRx, ui32* puiRxLen); + +#endif // _LIBNFC_DEV_PN533_H_ + diff --git a/src/devices.h b/src/devices.h index 0104d5a..15f8333 100644 --- a/src/devices.h +++ b/src/devices.h @@ -25,12 +25,14 @@ along with this program. If not, see . #include "types.h" #include "dev_acr122.h" #include "dev_pn531.h" +#include "dev_pn533.h" #include "dev_arygon.h" const static struct dev_callbacks dev_callbacks_list[] = { // Driver Name Connect Transceive Disconect { "ACR122", dev_acr122_connect, dev_acr122_transceive, dev_acr122_disconnect }, { "PN531USB", dev_pn531_connect, dev_pn531_transceive, dev_pn531_disconnect }, + { "PN533USB", dev_pn533_connect, dev_pn533_transceive, dev_pn533_disconnect }, { "ARYGON", dev_arygon_connect, dev_arygon_transceive, dev_arygon_disconnect } }; diff --git a/src/rs232.c b/src/rs232.c new file mode 100644 index 0000000..bbe9a0e --- /dev/null +++ b/src/rs232.c @@ -0,0 +1,304 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + + Based on rs232-code written by Teunis van Beelen + available: http://www.teuniz.net/RS-232/index.html + +*/ + + +#include "rs232.h" + +#ifndef _WIN32 /* Linux */ + +typedef struct termios term_info; +typedef struct { + int fd; // Serial port file descriptor + term_info tiOld; // Terminal info before using the port + term_info tiNew; // Terminal info during the transaction +} serial_port_unix; + +// Set time-out on 30 miliseconds +struct timeval tv = { + .tv_sec = 0, // No seconds + .tv_usec = 30000 // 30,000 micro seconds +}; + +// Work-around to claim rs232 interface using the c_iflag (software input processing) from the termios struct +#define CCLAIMED 0x80000000 + +serial_port rs232_open(const char* pcPortName) +{ + serial_port_unix* sp = malloc(sizeof(serial_port_unix)); + + if (sp == 0) return INVALID_SERIAL_PORT; + + sp->fd = open(pcPortName, O_RDWR | O_NOCTTY | O_NDELAY | O_NONBLOCK); + if(sp->fd == -1) + { + rs232_close(sp); + return INVALID_SERIAL_PORT; + } + + if(tcgetattr(sp->fd,&sp->tiOld) == -1) + { + rs232_close(sp); + return INVALID_SERIAL_PORT; + } + + // Make sure the port is not claimed already + if (sp->tiOld.c_iflag & CCLAIMED) + { + rs232_close(sp); + return CLAIMED_SERIAL_PORT; + } + + // Copy the old terminal info struct + sp->tiNew = sp->tiOld; + sp->tiNew.c_cflag = CS8 | CLOCAL | CREAD; + sp->tiNew.c_iflag = CCLAIMED | IGNPAR; + sp->tiNew.c_oflag = 0; + sp->tiNew.c_lflag = 0; + sp->tiNew.c_cc[VMIN] = 0; // block untill n bytes are received + sp->tiNew.c_cc[VTIME] = 0; // block untill a timer expires (n * 100 mSec.) + if(tcsetattr(sp->fd,TCSANOW,&sp->tiNew) == -1) + { + rs232_close(sp); + return INVALID_SERIAL_PORT; + } + return sp; +} + +void rs232_close(const serial_port sp) +{ + tcsetattr(((serial_port_unix*)sp)->fd,TCSANOW,&((serial_port_unix*)sp)->tiOld); + close(((serial_port_unix*)sp)->fd); + free(sp); +} + +bool rs232_cts(const serial_port sp) +{ + ulong ulStatus; + if (ioctl(((serial_port_unix*)sp)->fd,TIOCMGET,&ulStatus) < 0) return false; + return (ulStatus & TIOCM_CTS); +} + +bool rs232_receive(const serial_port sp, byte* pbtRx, ui32* puiRxLen) +{ + int iResult; + ui32 uiCount = 0; + fd_set rfds; + + while (true) + { + // Reset file descriptor + FD_ZERO(&rfds); + FD_SET(((serial_port_unix*)sp)->fd,&rfds); + iResult = select(((serial_port_unix*)sp)->fd+1, &rfds, NULL, NULL, &tv); + + // Read error + if (iResult < 0) return false; + + // Read time-out + if (iResult == 0) + { + // Test if we at least have received something + if (uiCount == 0) return false; + // Store the received byte count and return succesful + *puiRxLen = uiCount; + return true; + } + + // There is something available, read the data + uiCount += read(((serial_port_unix*)sp)->fd,pbtRx+uiCount,*puiRxLen-uiCount); + } +} + +bool rs232_send(const serial_port sp, const byte* pbtTx, const ui32 uiTxLen) +{ + int iResult; + iResult = write(((serial_port_unix*)sp)->fd,pbtTx,uiTxLen); + return (iResult >= 0); +} + +#else /* windows */ + + +HANDLE Cport[16]; + + +char comports[16][10]={"\\\\.\\COM1", "\\\\.\\COM2", "\\\\.\\COM3", "\\\\.\\COM4", + "\\\\.\\COM5", "\\\\.\\COM6", "\\\\.\\COM7", "\\\\.\\COM8", + "\\\\.\\COM9", "\\\\.\\COM10", "\\\\.\\COM11", "\\\\.\\COM12", + "\\\\.\\COM13", "\\\\.\\COM14", "\\\\.\\COM15", "\\\\.\\COM16"}; + +char baudr[64]; + + +int OpenComport(int comport_number, int baudrate) +{ + if((comport_number>15)||(comport_number<0)) + { + printf("illegal comport number\n"); + return(1); + } + + switch(baudrate) + { + sscanf(baudr,"baud=%d data=8 parity=N stop=1",baudrate); +/* + case 110 : strcpy(baudr, "baud=110 data=8 parity=N stop=1"); + break; + case 300 : strcpy(baudr, "baud=300 data=8 parity=N stop=1"); + break; + case 600 : strcpy(baudr, "baud=600 data=8 parity=N stop=1"); + break; + case 1200 : strcpy(baudr, "baud=1200 data=8 parity=N stop=1"); + break; + case 2400 : strcpy(baudr, "baud=2400 data=8 parity=N stop=1"); + break; + case 4800 : strcpy(baudr, "baud=4800 data=8 parity=N stop=1"); + break; + case 9600 : strcpy(baudr, "baud=9600 data=8 parity=N stop=1"); + break; + case 19200 : strcpy(baudr, "baud=19200 data=8 parity=N stop=1"); + break; + case 38400 : strcpy(baudr, "baud=38400 data=8 parity=N stop=1"); + break; + case 57600 : strcpy(baudr, "baud=57600 data=8 parity=N stop=1"); + break; + case 115200 : strcpy(baudr, "baud=115200 data=8 parity=N stop=1"); + break; + case 128000 : strcpy(baudr, "baud=128000 data=8 parity=N stop=1"); + break; + case 256000 : strcpy(baudr, "baud=256000 data=8 parity=N stop=1"); + break; + default : printf("invalid baudrate\n"); + return(1); + break; +*/ + } + + Cport[comport_number] = CreateFileA(comports[comport_number], + GENERIC_READ|GENERIC_WRITE, + 0, /* no share */ + NULL, /* no security */ + OPEN_EXISTING, + 0, /* no threads */ + NULL); /* no templates */ + + if(Cport[comport_number]==INVALID_HANDLE_VALUE) + { + printf("unable to open comport\n"); + return(1); + } + + DCB port_settings; + memset(&port_settings, 0, sizeof(port_settings)); /* clear the new struct */ + port_settings.DCBlength = sizeof(port_settings); + + if(!BuildCommDCBA(baudr, &port_settings)) + { + printf("unable to set comport dcb settings\n"); + CloseHandle(Cport[comport_number]); + return(1); + } + + if(!SetCommState(Cport[comport_number], &port_settings)) + { + printf("unable to set comport cfg settings\n"); + CloseHandle(Cport[comport_number]); + return(1); + } + + COMMTIMEOUTS Cptimeouts; + + Cptimeouts.ReadIntervalTimeout = MAXDWORD; + Cptimeouts.ReadTotalTimeoutMultiplier = 0; + Cptimeouts.ReadTotalTimeoutConstant = 0; + Cptimeouts.WriteTotalTimeoutMultiplier = 0; + Cptimeouts.WriteTotalTimeoutConstant = 0; + + if(!SetCommTimeouts(Cport[comport_number], &Cptimeouts)) + { + printf("unable to set comport time-out settings\n"); + CloseHandle(Cport[comport_number]); + return(1); + } + + return(0); +} + + +int PollComport(int comport_number, unsigned char *buf, int size) +{ + int n; + + if(size>4096) size = 4096; + +/* added the void pointer cast, otherwise gcc will complain about */ +/* "warning: dereferencing type-punned pointer will break strict aliasing rules" */ + + ReadFile(Cport[comport_number], buf, size, (LPDWORD)((void *)&n), NULL); + + return(n); +} + + +int SendByte(int comport_number, unsigned char byte) +{ + int n; + + WriteFile(Cport[comport_number], &byte, 1, (LPDWORD)((void *)&n), NULL); + + if(n<0) return(1); + + return(0); +} + + +int SendBuf(int comport_number, unsigned char *buf, int size) +{ + int n; + + if(WriteFile(Cport[comport_number], buf, size, (LPDWORD)((void *)&n), NULL)) + { + return(n); + } + + return(-1); +} + +bool rs232_cts(const serial_port sp); +{ + int status; + + GetCommModemStatus(Cport[comport_number], (LPDWORD)((void *)&status)); + + if(status&MS_CTS_ON) return(1); + else return(0); +} + + +void CloseComport(int comport_number) +{ + CloseHandle(Cport[comport_number]); +} + + +#endif diff --git a/src/rs232.h b/src/rs232.h new file mode 100644 index 0000000..3a5b95d --- /dev/null +++ b/src/rs232.h @@ -0,0 +1,56 @@ +/* + +Public platform independent Near Field Communication (NFC) library +Copyright (C) 2009, Roel Verdult + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . + +*/ + +#ifndef _LIBNFC_RS232_H_ +#define _LIBNFC_RS232_H_ + +#include +#include +#include +#include "defines.h" +#include "types.h" + +// Handle platform specific includes +#ifndef _WIN32 + #include + #include + #include + #include + #include + #include + #include +#else + #include +#endif + +// Define shortcut to types to make code more readable +typedef void* serial_port; +#define INVALID_SERIAL_PORT (void*)(~1) +#define CLAIMED_SERIAL_PORT (void*)(~2) + +serial_port rs232_open(const char* pcPortName); +void rs232_close(const serial_port sp); +bool rs232_cts(const serial_port sp); +bool rs232_receive(const serial_port sp, byte* pbtRx, ui32* puiRxLen); +bool rs232_send(const serial_port sp, const byte* pbtTx, const ui32 uiTxLen); + +#endif // _LIBNFC_RS232_H_ + +