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diff --git a/Linux_x86/phDal4Nfc_uart.c b/Linux_x86/phDal4Nfc_uart.c
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+/*
+ * Copyright (C) 2010 NXP Semiconductors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file phDalNfc_uart.c
+ * \brief DAL com port implementation for linux
+ *
+ * Project: Trusted NFC Linux Lignt
+ *
+ * $Date: 07 aug 2009
+ * $Author: Jonathan roux
+ * $Revision: 1.0 $
+ *
+ */
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <sys/select.h>
+
+#include <phDal4Nfc_debug.h>
+#include <phDal4Nfc_uart.h>
+#include <phOsalNfc.h>
+#include <phNfcStatus.h>
+#if defined(ANDROID)
+#include <string.h>
+#endif
+
+typedef struct
+{
+ int nHandle;
+ char nOpened;
+ struct termios nIoConfigBackup;
+ struct termios nIoConfig;
+
+} phDal4Nfc_ComPortContext_t;
+
+/*-----------------------------------------------------------------------------------
+ COM PORT CONFIGURATION
+------------------------------------------------------------------------------------*/
+#define DAL_BAUD_RATE B115200
+
+
+
+/*-----------------------------------------------------------------------------------
+ VARIABLES
+------------------------------------------------------------------------------------*/
+static phDal4Nfc_ComPortContext_t gComPortContext;
+
+
+
+/*-----------------------------------------------------------------------------
+
+FUNCTION: phDal4Nfc_uart_set_open_from_handle
+
+PURPOSE: Initialize internal variables
+
+-----------------------------------------------------------------------------*/
+
+void phDal4Nfc_uart_initialize(void)
+{
+ memset(&gComPortContext, 0, sizeof(phDal4Nfc_ComPortContext_t));
+}
+
+
+/*-----------------------------------------------------------------------------
+
+FUNCTION: phDal4Nfc_uart_set_open_from_handle
+
+PURPOSE: The application could have opened the link itself. So we just need
+ to get the handle and consider that the open operation has already
+ been done.
+
+-----------------------------------------------------------------------------*/
+
+void phDal4Nfc_uart_set_open_from_handle(phHal_sHwReference_t * pDalHwContext)
+{
+ gComPortContext.nHandle = (int) pDalHwContext->p_board_driver;
+ DAL_ASSERT_STR(gComPortContext.nHandle >= 0, "Bad passed com port handle");
+ gComPortContext.nOpened = 1;
+}
+
+/*-----------------------------------------------------------------------------
+
+FUNCTION: phDal4Nfc_uart_is_opened
+
+PURPOSE: Returns if the link is opened or not. (0 = not opened; 1 = opened)
+
+-----------------------------------------------------------------------------*/
+
+int phDal4Nfc_uart_is_opened(void)
+{
+ return gComPortContext.nOpened;
+}
+
+/*-----------------------------------------------------------------------------
+
+FUNCTION: phDal4Nfc_uart_flush
+
+PURPOSE: Flushes the link ; clears the link buffers
+
+-----------------------------------------------------------------------------*/
+
+void phDal4Nfc_uart_flush(void)
+{
+ int ret;
+ /* flushes the com port */
+ ret = tcflush(gComPortContext.nHandle, TCIFLUSH);
+ DAL_ASSERT_STR(ret!=-1, "tcflush failed");
+}
+
+/*-----------------------------------------------------------------------------
+
+FUNCTION: phDal4Nfc_uart_close
+
+PURPOSE: Closes the link
+
+-----------------------------------------------------------------------------*/
+
+void phDal4Nfc_uart_close(void)
+{
+ if (gComPortContext.nOpened == 1)
+ {
+ close(gComPortContext.nHandle);
+ gComPortContext.nHandle = 0;
+ gComPortContext.nOpened = 0;
+ }
+}
+
+/*-----------------------------------------------------------------------------
+
+FUNCTION: phDal4Nfc_uart_close
+
+PURPOSE: Closes the link
+
+-----------------------------------------------------------------------------*/
+
+NFCSTATUS phDal4Nfc_uart_open_and_configure(pphDal4Nfc_sConfig_t pConfig, void ** pLinkHandle)
+{
+ char * pComPort;
+ int nComStatus;
+ NFCSTATUS nfcret = NFCSTATUS_SUCCESS;
+ int ret;
+
+ DAL_ASSERT_STR(gComPortContext.nOpened==0, "Trying to open but already done!");
+
+ switch(pConfig->nLinkType)
+ {
+ case ENUM_DAL_LINK_TYPE_COM1:
+ pComPort = "/dev/ttyS0";
+ break;
+ case ENUM_DAL_LINK_TYPE_COM2:
+ pComPort = "/dev/ttyS1";
+ break;
+ case ENUM_DAL_LINK_TYPE_COM3:
+ pComPort = "/dev/ttyS2";
+ break;
+ case ENUM_DAL_LINK_TYPE_COM4:
+ pComPort = "/dev/ttyS3";
+ break;
+ case ENUM_DAL_LINK_TYPE_COM5:
+ pComPort = "/dev/ttyS4";
+ break;
+ case ENUM_DAL_LINK_TYPE_COM6:
+ pComPort = "/dev/ttyS5";
+ break;
+ case ENUM_DAL_LINK_TYPE_COM7:
+ pComPort = "/dev/ttyS6";
+ break;
+ case ENUM_DAL_LINK_TYPE_COM8:
+ pComPort = "/dev/ttyS7";
+ break;
+ case ENUM_DAL_LINK_TYPE_USB:
+ pComPort = "/dev/ttyUSB0";
+ break;
+ default:
+ return NFCSTATUS_INVALID_PARAMETER;
+ }
+
+ /* open communication port handle */
+ gComPortContext.nHandle = open(pComPort, O_RDWR | O_NOCTTY);
+ if (gComPortContext.nHandle < 0)
+ {
+ *pLinkHandle = NULL;
+ return PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_INVALID_DEVICE);
+ }
+
+ gComPortContext.nOpened = 1;
+ *pLinkHandle = (void*)gComPortContext.nHandle;
+
+ /*
+ * Now configure the com port
+ */
+ ret = tcgetattr(gComPortContext.nHandle, &gComPortContext.nIoConfigBackup); /* save the old io config */
+ if (ret == -1)
+ {
+ /* tcgetattr failed -- it is likely that the provided port is invalid */
+ *pLinkHandle = NULL;
+ return PHNFCSTVAL(CID_NFC_DAL, NFCSTATUS_INVALID_DEVICE);
+ }
+ ret = fcntl(gComPortContext.nHandle, F_SETFL, 0); /* Makes the read blocking (default). */
+ DAL_ASSERT_STR(ret != -1, "fcntl failed");
+ /* Configures the io */
+ memset((void *)&gComPortContext.nIoConfig, (int)0, (size_t)sizeof(struct termios));
+ /*
+ BAUDRATE: Set bps rate. You could also use cfsetispeed and cfsetospeed.
+ CRTSCTS : output hardware flow control (only used if the cable has
+ all necessary lines. See sect. 7 of Serial-HOWTO)
+ CS8 : 8n1 (8bit,no parity,1 stopbit)
+ CLOCAL : local connection, no modem contol
+ CREAD : enable receiving characters
+ */
+ gComPortContext.nIoConfig.c_cflag = DAL_BAUD_RATE | CS8 | CLOCAL | CREAD; /* Control mode flags */
+ gComPortContext.nIoConfig.c_iflag = IGNPAR; /* Input mode flags : IGNPAR Ignore parity errors */
+ gComPortContext.nIoConfig.c_oflag = 0; /* Output mode flags */
+ gComPortContext.nIoConfig.c_lflag = 0; /* Local mode flags. Read mode : non canonical, no echo */
+ gComPortContext.nIoConfig.c_cc[VTIME] = 0; /* Control characters. No inter-character timer */
+ gComPortContext.nIoConfig.c_cc[VMIN] = 1; /* Control characters. Read is blocking until X characters are read */
+
+ /*
+ TCSANOW Make changes now without waiting for data to complete
+ TCSADRAIN Wait until everything has been transmitted
+ TCSAFLUSH Flush input and output buffers and make the change
+ */
+ ret = tcsetattr(gComPortContext.nHandle, TCSANOW, &gComPortContext.nIoConfig);
+ DAL_ASSERT_STR(ret != -1, "tcsetattr failed");
+
+ /*
+ On linux the DTR signal is set by default. That causes a problem for pn544 chip
+ because this signal is connected to "reset". So we clear it. (on windows it is cleared by default).
+ */
+ ret = ioctl(gComPortContext.nHandle, TIOCMGET, &nComStatus);
+ DAL_ASSERT_STR(ret != -1, "ioctl TIOCMGET failed");
+ nComStatus &= ~TIOCM_DTR;
+ ret = ioctl(gComPortContext.nHandle, TIOCMSET, &nComStatus);
+ DAL_ASSERT_STR(ret != -1, "ioctl TIOCMSET failed");
+ DAL_DEBUG("Com port status=%d\n", nComStatus);
+ usleep(10000); /* Mandatory sleep so that the DTR line is ready before continuing */
+
+ return nfcret;
+}
+
+
+/*-----------------------------------------------------------------------------
+
+FUNCTION: phDal4Nfc_uart_read
+
+PURPOSE: Reads nNbBytesToRead bytes and writes them in pBuffer.
+ Returns the number of bytes really read or -1 in case of error.
+
+-----------------------------------------------------------------------------*/
+
+int phDal4Nfc_uart_read(uint8_t * pBuffer, int nNbBytesToRead)
+{
+ fd_set rfds;
+ struct timeval tv;
+ int ret;
+
+ DAL_ASSERT_STR(gComPortContext.nOpened == 1, "read called but not opened!");
+
+ FD_ZERO(&rfds);
+ FD_SET(gComPortContext.nHandle, &rfds);
+
+ /* select will block for 10 sec */
+ tv.tv_sec = 2;
+ tv.tv_usec = 0;
+
+ ret = select(gComPortContext.nHandle + 1, &rfds, NULL, NULL, &tv);
+
+ if (ret == -1)
+ return -1;
+
+ if (ret)
+ return read(gComPortContext.nHandle, pBuffer, nNbBytesToRead);
+
+ return 0;
+}
+
+/*-----------------------------------------------------------------------------
+
+FUNCTION: phDal4Nfc_link_write
+
+PURPOSE: Writes nNbBytesToWrite bytes from pBuffer to the link
+ Returns the number of bytes that have been wrote to the interface or -1 in case of error.
+
+-----------------------------------------------------------------------------*/
+
+int phDal4Nfc_uart_write(uint8_t * pBuffer, int nNbBytesToWrite)
+{
+ fd_set wfds;
+ struct timeval tv;
+ int ret;
+
+ DAL_ASSERT_STR(gComPortContext.nOpened == 1, "write called but not opened!");
+
+ FD_ZERO(&wfds);
+ FD_SET(gComPortContext.nHandle, &wfds);
+
+ /* select will block for 10 sec */
+ tv.tv_sec = 2;
+ tv.tv_usec = 0;
+
+ ret = select(gComPortContext.nHandle + 1, NULL, &wfds, NULL, &tv);
+
+ if (ret == -1)
+ return -1;
+
+ if (ret)
+ return write(gComPortContext.nHandle, pBuffer, nNbBytesToWrite);
+
+ return 0;
+}
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