Tidy-up file structure and code style

os/dev/slip.c

@@ -26,46 +26,42 @@
  * 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.
- *
- * This file is part of the Contiki operating system.
- *
  */
-
-
-#include <stdio.h>
-#include <string.h>
-
+/*---------------------------------------------------------------------------*/
 #include "contiki.h"
-
 #include "net/ipv6/uip.h"
 #include "dev/slip.h"
 
+#include <stdio.h>
+#include <string.h>
+/*---------------------------------------------------------------------------*/
 #define SLIP_END     0300
 #define SLIP_ESC     0333
 #define SLIP_ESC_END 0334
 #define SLIP_ESC_ESC 0335
-
+/*---------------------------------------------------------------------------*/
 PROCESS(slip_process, "SLIP driver");
 
 uint8_t slip_active;
 
+/*---------------------------------------------------------------------------*/
 #if 1
 #define SLIP_STATISTICS(statement)
 #else
 uint16_t slip_rubbish, slip_twopackets, slip_overflow, slip_ip_drop;
 #define SLIP_STATISTICS(statement) statement
 #endif
-
+/*---------------------------------------------------------------------------*/
 /* Must be at least one byte larger than UIP_BUFSIZE! */
 #define RX_BUFSIZE (UIP_BUFSIZE - UIP_LLH_LEN + 16)
-
+/*---------------------------------------------------------------------------*/
 enum {
   STATE_TWOPACKETS = 0, /* We have 2 packets and drop incoming data. */
   STATE_OK = 1,
   STATE_ESC = 2,
   STATE_RUBBISH = 3,
 };
-
+/*---------------------------------------------------------------------------*/
 /*
  * Variables begin and end manage the buffer space in a cyclic
  * fashion. The first used byte is at begin and end is one byte past
@@ -76,7 +72,6 @@ enum {
  * [pkt_end, end). If more bytes arrive in state STATE_TWOPACKETS
  * they are discarded.
  */
-
 static uint8_t state = STATE_TWOPACKETS;
 static uint16_t begin, next_free;
 static uint8_t rxbuf[RX_BUFSIZE];