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MERGE: svn merge -r 20:23 trunk/src branches/portability/src

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This commit is contained in:
Romuald Conty 2009-06-11 09:12:00 +00:00
parent 5391dfc902
commit d74f0d13dd
8 changed files with 832 additions and 2 deletions
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139
src/dev_arygon.c Normal file
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@ -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 <http://www.gnu.org/licenses/>.
*/
#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; uiDevNr<MAX_DEVICES; uiDevNr++)
{
#ifdef __APPLE__
strcpy(acConnect,SERIAL_STRING);
sp = rs232_open(acConnect);
#else
sprintf(acConnect,"%s%d",SERIAL_STRING,uiDevNr);
sp = rs232_open(acConnect);
#endif
if ((sp != INVALID_SERIAL_PORT) && (sp != CLAIMED_SERIAL_PORT)) break;
#ifdef _LIBNFC_VERBOSE_
if (sp == INVALID_SERIAL_PORT) printf("invalid serial port: %s\n",acConnect);
if (sp == CLAIMED_SERIAL_PORT) printf("serial port already claimed: %s\n",acConnect);
#endif
}
// Test if we have found a device
if (uiDevNr == MAX_DEVICES) return INVALID_DEVICE_INFO;
#ifdef _LIBNFC_VERBOSE_
printf("Succesfully connected to: %s\n",acConnect);
#endif
// We have a connection
pdi = malloc(sizeof(dev_info));
strcpy(pdi->acName,"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;
}

35
src/dev_arygon.h Normal file
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@ -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 <http://www.gnu.org/licenses/>.
*/
#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_

7
src/dev_pn531.c
View file

@ -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;

256
src/dev_pn533.c Normal file
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@ -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 <http://www.gnu.org/licenses/>.
Thanks to d18c7db and Okko for example code
*/
#include "defines.h"
#include <usb.h>
#include <stdio.h>
#include <string.h>
#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;
}

35
src/dev_pn533.h Normal file
View file

@ -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 <http://www.gnu.org/licenses/>.
*/
#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_

2
src/devices.h
View file

@ -25,12 +25,14 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#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 }
};

304
src/rs232.c Normal file
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@ -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 <http://www.gnu.org/licenses/>.
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

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src/rs232.h Normal file
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/*
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 <http://www.gnu.org/licenses/>.
*/
#ifndef _LIBNFC_RS232_H_
#define _LIBNFC_RS232_H_
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "defines.h"
#include "types.h"
// Handle platform specific includes
#ifndef _WIN32
#include <termios.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <limits.h>
#else
#include <windows.h>
#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_