56 lines
1.7 KiB
C
56 lines
1.7 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 Lesser 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 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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#ifndef _LIBNFC_DEFINES_H_
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#define _LIBNFC_DEFINES_H_
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//#define DEBUG /* DEBUG flag can also be enabled using ./configure --enable-debug */
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typedef void* dev_spec; // Device connection specification
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#define INVALID_DEVICE_INFO 0
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#define MAX_FRAME_LEN 264
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#define DEVICE_NAME_LENGTH 256
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#define MAX_DEVICES 16
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#if defined __cplusplus
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#define LIBNFC_EXTERN_C extern "C"
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#else
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#define LIBNFC_EXTERN_C
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#endif
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#ifdef _WIN32
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#ifdef nfc_EXPORTS
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#define LIBNFC_DECLSPEC __declspec( dllexport )
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#else
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#define LIBNFC_DECLSPEC __declspec( dllimport )
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#endif
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#else
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#define LIBNFC_DECLSPEC
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#endif
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#define LIBNFC_EXPORT LIBNFC_EXTERN_C LIBNFC_DECLSPEC
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//#define MIN(a,b) (((a) < (b)) ? (a) : (b))
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//#define MAX(a,b) (((a) > (b)) ? (a) : (b))
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#define INNER_XOR8(n) {n ^= (n >> 4); n ^= (n >> 2); n ^= (n >> 1); n &= 0x01; }
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#define INNER_XOR32(n) {n ^= (n >> 16); n ^= (n >> 8); INNER_XOR8(n); }
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#define INNER_XOR64(n) {n ^= (n >> 32); INNER_XOR32(n); }
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#endif // _LIBNFC_DEFINES_H_
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