ipv6 bridge between 802.15.4 and ethernet - over USB/SLIP - use with sliptap6

tools/sky/uip6-bridge/dev/slip.h

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+/* -*- C -*- */
+/*
+ * Copyright (c) 2005, Swedish Institute of Computer Science
+ * All rights reserved.
+ *
+ * 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ * @(#)$Id: slip.h,v 1.1 2009/05/08 12:49:36 joxe Exp $
+ */
+
+#ifndef __SLIP_H__
+#define __SLIP_H__
+
+#include "contiki.h"
+
+PROCESS_NAME(slip_process);
+
+/**
+ * Send an IP packet from the uIP buffer with SLIP.
+ */
+uint8_t slip_send(void);
+
+/**
+ * Input a SLIP byte.
+ *
+ * This function is called by the RS232/SIO device driver to pass
+ * incoming bytes to the SLIP driver. The function can be called from
+ * an interrupt context.
+ *
+ * For systems using low-power CPU modes, the return value of the
+ * function can be used to determine if the CPU should be woken up or
+ * not. If the function returns non-zero, the CPU should be powered
+ * up. If the function returns zero, the CPU can continue to be
+ * powered down.
+ *
+ * \param c The data that is to be passed to the SLIP driver
+ *
+ * \return Non-zero if the CPU should be powered up, zero otherwise.
+ */
+int slip_input_byte(unsigned char c);
+
+uint8_t slip_write(const void *ptr, int len);
+
+/* Did we receive any bytes lately? */
+extern uint8_t slip_active;
+
+/* Statistics. */
+extern uint16_t slip_rubbish, slip_twopackets, slip_overflow, slip_ip_drop;
+
+/**
+ * Set a function to be called when there is activity on the SLIP
+ * interface; used for detecting if a node is a gateway node.
+ */
+void slip_set_input_callback(void (*callback)(void));
+
+/**
+ * Set a function to be called when a packet has been received.
+ * Default is tcpip_input().
+ */
+void slip_set_tcpip_input_callback(void (*callback)(void));
+
+/*
+ * These machine dependent functions and an interrupt service routine
+ * must be provided externally (slip_arch.c).
+ */
+void slip_arch_init(unsigned long ubr);
+void slip_arch_writeb(unsigned char c);
+
+#endif /* __SLIP_H__ */