Remove old header file and add more missing header files

log.h

@@ -0,0 +1,36 @@
+/* log.h */
+
+#ifndef __LOG_H
+#define __LOG_H
+
+#include "types.h"
+
+char log_get_byte(void);
+void log_put_byte(char c);
+void log_put_uint16(unsigned int i);
+void log_put_uint(unsigned int i);
+void log_put_float(float f);
+void log_put_header(unsigned int timestamp);
+void log_put_array(char *data, int length);
+
+void log_mark_busy(void);
+void log_mark_idle(void);
+unsigned int log_read_busytime(void);
+
+/* Needed by log.c and sdcard.c only */
+#define LOG_MAGIC 0x00000CFC
+
+#define LOG_BUFFERSIZE 4096
+
+extern unsigned int log_bufferstart;
+extern unsigned int log_bufferend;
+extern bool log_enabled;
+extern char log_buffer[];
+
+extern unsigned int log_generation;
+
+#define LOG_BUFFER_EMPTY (log_bufferstart == log_bufferend)
+#define LOG_BUFFER_BYTES ((log_bufferend - log_bufferstart) % \
+                                LOG_BUFFERSIZE)
+
+#endif /* __LOG_H */