add trace_def.h to git

common/trace/trace_def.h

+/*
+	trace definitions
+
+	Copyright Jeroen Vreeken (jeroen@vreeken.net), 2013
+
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program 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 General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef _INCLUDE_TRACE_DEF_H_
+#define _INCLUDE_TRACE_DEF_H_
+
+#include <stdint.h>
+
+#ifndef __packed
+#define __packed __attribute__((packed))
+#endif
+
+#define TRACE_END	192
+#define TRACE_ESC	219
+#define TRACE_ESC_END	220
+#define TRACE_ESC_ESC	221
+
+struct trace_header {
+	uint8_t type;
+} __packed;
+
+struct trace_ptype_timestamp {
+	uint64_t sec;
+	uint32_t nsec;
+} __packed;
+
+/* trace_ptype_list 
+
+	strings are null terminated
+
+	name (str), value type byte, unit (str)
+ */
+
+struct trace_ptype_interval {
+	uint64_t sec;
+	uint32_t nsec;
+	uint8_t type;
+} __packed;
+
+/* trace_ptype_name
+
+	null terminated string
+ */
+
+struct trace_ptype_value_type {
+	uint8_t type;
+} __packed;
+
+struct trace_ptype_value {
+	union { 
+		uint32_t u32;
+		uint16_t u16;
+		uint8_t u8;
+	} u;
+} __packed;
+
+#endif /* _INCLUDE_TRACE_DEF_H_ */