08eb21aa9d
- Define two sets of DE<FOOBAR> macros: the first one for 'generic' errors which could be encountered regardless of the NFC device the library is acting with (0xX000), and ont set for device-dependant errors (0x0X00). - Make some more functions accept a nfc_device_t* as first argument to have access to the iLastError; - Reset errors when entering public API functions; - Save errors when applicable; - Distinguish system-level errors (e.g. I/O error) and operational errors (the PCD returns an unexpected value); - Minor tweaks. Update issue 65 Status: Feedback New review: Owner: rconty@il4p.fr Cc: rtartiere@il4p.fr Summary: Review the error-handling code. Branch: /branches/libnfc-error-handling For this development, a strong emphasis has been set on making changes that will not go through our way on the way to libnfc-1.6+. For this reason, some constructs are not natural (e.g. error codes defined in two different places), please keep this in mind when reviewing.
93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/*-
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* Public platform independent Near Field Communication (NFC) library
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*
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* Copyright (C) 2009, 2010, Roel Verdult, Romuald Conty
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU Lesser 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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*/
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/**
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* @file uart.h
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* @brief UART driver header
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*/
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#ifndef __NFC_BUS_UART_H__
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#define __NFC_BUS_UART_H__
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <nfc/nfc-types.h>
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// Handle platform specific includes
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#ifndef _WIN32
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#include <termios.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <limits.h>
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#include <sys/time.h>
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// unistd.h is needed for usleep() fct.
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#include <unistd.h>
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#define delay_ms( X ) usleep( X * 1000 )
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#else
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#include <windows.h>
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#define snprintf _snprintf
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#define strdup _strdup
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#define delay_ms( X ) Sleep( X )
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#endif
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// Path to the serial port is OS-dependant.
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// Try to guess what we should use.
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//
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// XXX: Some review from users cross-compiling is welcome!
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#if defined(_WIN32)
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#define SERIAL_STRING "COM"
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//#elif defined(__APPLE__)
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// TODO: find UART connection string for PN53X device on Mac OS X
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// #define SERIAL_STRING ""
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#elif defined (__FreeBSD__) || defined (__OpenBSD__)
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// XXX: Not tested
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#define SERIAL_STRING "/dev/cuau"
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#elif defined (__linux__)
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#define SERIAL_STRING "/dev/ttyUSB"
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#else
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#error "Can't determine serial string for your system"
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#endif
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// Define shortcut to types to make code more readable
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typedef void* serial_port;
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#define INVALID_SERIAL_PORT (void*)(~1)
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#define CLAIMED_SERIAL_PORT (void*)(~2)
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serial_port uart_open(const char* pcPortName);
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void uart_close(const serial_port sp);
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void uart_set_speed(nfc_device_t* pnd, const uint32_t uiPortSpeed);
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uint32_t uart_get_speed(const nfc_device_t* pnd);
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bool uart_receive(nfc_device_t* pnd, byte_t* pbtRx, size_t* pszRxLen);
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bool uart_send(nfc_device_t* pnd, const byte_t* pbtTx, const size_t szTxLen);
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#endif // __NFC_BUS_UART_H__
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