sdlog2 logger app added. New flexible log format, compatible with APM.

1 files changed, 68 insertions, 0 deletions

diff --git a/src/modules/sdlog2/sdlog2_ringbuffer.h b/src/modules/sdlog2/sdlog2_ringbuffer.h
new file mode 100644
index 000000000..287f56c34
--- /dev/null
+++ b/src/modules/sdlog2/sdlog2_ringbuffer.h
@@ -0,0 +1,68 @@
+/****************************************************************************
+ *
+ *   Copyright (c) 2013 PX4 Development Team. All rights reserved.
+ *   Author: Anton Babushkin <rk3dov@gmail.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name PX4 nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/**
+ * @file sdlog2_ringbuffer.h
+ *
+ * Ring FIFO buffer for binary data.
+ *
+ * @author Anton Babushkin <rk3dov@gmail.com>
+ */
+
+#ifndef SDLOG2_RINGBUFFER_H_
+#define SDLOG2_RINGBUFFER_H_
+
+struct sdlog2_logbuffer {
+	// all pointers are in bytes
+	int write_ptr;
+	int read_ptr;
+	int size;
+	char *data;
+};
+
+void sdlog2_logbuffer_init(struct sdlog2_logbuffer *lb, int size);
+
+int sdlog2_logbuffer_free(struct sdlog2_logbuffer *lb);
+
+int sdlog2_logbuffer_count(struct sdlog2_logbuffer *lb);
+
+int sdlog2_logbuffer_is_empty(struct sdlog2_logbuffer *lb);
+
+void sdlog2_logbuffer_write(struct sdlog2_logbuffer *lb, void *ptr, int size);
+
+int sdlog2_logbuffer_get_ptr(struct sdlog2_logbuffer *lb, void **ptr);
+
+void sdlog2_logbuffer_mark_read(struct sdlog2_logbuffer *lb, int n);
+
+#endif