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-rw-r--r--lib/libucsi/endianops.h128
1 files changed, 128 insertions, 0 deletions
diff --git a/lib/libucsi/endianops.h b/lib/libucsi/endianops.h
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+++ b/lib/libucsi/endianops.h
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+/*
+ * section and descriptor parser
+ *
+ * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef _UCSI_COMMON_H
+#define _UCSI_COMMON_H 1
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <stdint.h>
+#include <byteswap.h>
+#include <endian.h>
+
+#define __ucsi_packed __attribute__((packed))
+
+
+
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define EBIT2(x1,x2) x1 x2
+#define EBIT3(x1,x2,x3) x1 x2 x3
+#define EBIT4(x1,x2,x3,x4) x1 x2 x3 x4
+#define EBIT5(x1,x2,x3,x4,x5) x1 x2 x3 x4 x5
+#define EBIT6(x1,x2,x3,x4,x5,x6) x1 x2 x3 x4 x5 x6
+#define EBIT7(x1,x2,x3,x4,x5,x6,x7) x1 x2 x3 x4 x5 x6 x7
+#define EBIT8(x1,x2,x3,x4,x5,x6,x7,x8) x1 x2 x3 x4 x5 x6 x7 x8
+
+static inline void bswap16(uint8_t *buf) {
+ (void) buf;
+}
+
+static inline void bswap32(uint8_t *buf) {
+ (void) buf;
+}
+
+static inline void bswap64(uint8_t *buf) {
+ (void) buf;
+}
+
+static inline void bswap24(uint8_t *buf) {
+ (void) buf;
+}
+
+static inline void bswap40(uint8_t *buf) {
+ (void) buf;
+}
+
+static inline void bswap48(uint8_t *buf) {
+ (void) buf;
+}
+
+#else
+#define EBIT2(x1,x2) x2 x1
+#define EBIT3(x1,x2,x3) x3 x2 x1
+#define EBIT4(x1,x2,x3,x4) x4 x3 x2 x1
+#define EBIT5(x1,x2,x3,x4,x5) x5 x4 x3 x2 x1
+#define EBIT6(x1,x2,x3,x4,x5,x6) x6 x5 x4 x3 x2 x1
+#define EBIT7(x1,x2,x3,x4,x5,x6,x7) x7 x6 x5 x4 x3 x2 x1
+#define EBIT8(x1,x2,x3,x4,x5,x6,x7,x8) x8 x7 x6 x5 x4 x3 x2 x1
+
+static inline void bswap16(uint8_t * buf) {
+ *((uint16_t*)buf) = bswap_16((*(uint16_t*)buf));
+}
+
+static inline void bswap32(uint8_t * buf) {
+ *((uint32_t*)buf) = bswap_32((*(uint32_t*)buf));
+}
+
+static inline void bswap64(uint8_t * buf) {
+ *((uint64_t*)buf) = bswap_64((*(uint64_t*)buf));
+}
+
+static inline void bswap24(uint8_t * buf) {
+ uint8_t tmp0 = buf[0];
+
+ buf[0] = buf[2];
+ buf[2] = tmp0;
+}
+
+static inline void bswap40(uint8_t * buf) {
+ uint8_t tmp0 = buf[0];
+ uint8_t tmp1 = buf[1];
+
+ buf[0] = buf[4];
+ buf[1] = buf[3];
+ buf[3] = tmp1;
+ buf[4] = tmp0;
+}
+
+static inline void bswap48(uint8_t * buf) {
+ uint8_t tmp0 = buf[0];
+ uint8_t tmp1 = buf[1];
+ uint8_t tmp2 = buf[2];
+
+ buf[0] = buf[5];
+ buf[1] = buf[4];
+ buf[2] = buf[3];
+ buf[3] = tmp2;
+ buf[4] = tmp1;
+ buf[5] = tmp0;
+}
+
+#endif // __BYTE_ORDER
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif