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129 lines
2.8 KiB
129 lines
2.8 KiB
/*
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* section and descriptor parser
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*
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* Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef _UCSI_COMMON_H
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#define _UCSI_COMMON_H 1
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include <stdint.h>
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#include <byteswap.h>
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#include <endian.h>
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#define __ucsi_packed __attribute__((packed))
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#if __BYTE_ORDER == __BIG_ENDIAN
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#define EBIT2(x1,x2) x1 x2
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#define EBIT3(x1,x2,x3) x1 x2 x3
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#define EBIT4(x1,x2,x3,x4) x1 x2 x3 x4
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#define EBIT5(x1,x2,x3,x4,x5) x1 x2 x3 x4 x5
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#define EBIT6(x1,x2,x3,x4,x5,x6) x1 x2 x3 x4 x5 x6
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#define EBIT7(x1,x2,x3,x4,x5,x6,x7) x1 x2 x3 x4 x5 x6 x7
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#define EBIT8(x1,x2,x3,x4,x5,x6,x7,x8) x1 x2 x3 x4 x5 x6 x7 x8
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static inline void bswap16(uint8_t *buf) {
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(void) buf;
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}
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static inline void bswap32(uint8_t *buf) {
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(void) buf;
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}
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static inline void bswap64(uint8_t *buf) {
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(void) buf;
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}
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static inline void bswap24(uint8_t *buf) {
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(void) buf;
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}
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static inline void bswap40(uint8_t *buf) {
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(void) buf;
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}
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static inline void bswap48(uint8_t *buf) {
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(void) buf;
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}
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#else
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#define EBIT2(x1,x2) x2 x1
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#define EBIT3(x1,x2,x3) x3 x2 x1
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#define EBIT4(x1,x2,x3,x4) x4 x3 x2 x1
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#define EBIT5(x1,x2,x3,x4,x5) x5 x4 x3 x2 x1
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#define EBIT6(x1,x2,x3,x4,x5,x6) x6 x5 x4 x3 x2 x1
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#define EBIT7(x1,x2,x3,x4,x5,x6,x7) x7 x6 x5 x4 x3 x2 x1
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#define EBIT8(x1,x2,x3,x4,x5,x6,x7,x8) x8 x7 x6 x5 x4 x3 x2 x1
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static inline void bswap16(uint8_t * buf) {
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*((uint16_t*)buf) = bswap_16((*(uint16_t*)buf));
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}
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static inline void bswap32(uint8_t * buf) {
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*((uint32_t*)buf) = bswap_32((*(uint32_t*)buf));
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}
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static inline void bswap64(uint8_t * buf) {
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*((uint64_t*)buf) = bswap_64((*(uint64_t*)buf));
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}
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static inline void bswap24(uint8_t * buf) {
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uint8_t tmp0 = buf[0];
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buf[0] = buf[2];
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buf[2] = tmp0;
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}
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static inline void bswap40(uint8_t * buf) {
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uint8_t tmp0 = buf[0];
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uint8_t tmp1 = buf[1];
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buf[0] = buf[4];
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buf[1] = buf[3];
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buf[3] = tmp1;
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buf[4] = tmp0;
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}
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static inline void bswap48(uint8_t * buf) {
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uint8_t tmp0 = buf[0];
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uint8_t tmp1 = buf[1];
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uint8_t tmp2 = buf[2];
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buf[0] = buf[5];
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buf[1] = buf[4];
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buf[2] = buf[3];
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buf[3] = tmp2;
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buf[4] = tmp1;
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buf[5] = tmp0;
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}
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#endif // __BYTE_ORDER
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#ifdef __cplusplus
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}
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#endif
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#endif
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