tapdev.cpp

00001 /*
00002  * Copyright (c) 2001, Swedish Institute of Computer Science.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  *
00009  * 1. Redistributions of source code must retain the above copyright
00010  *    notice, this list of conditions and the following disclaimer.
00011  *
00012  * 2. Redistributions in binary form must reproduce the above copyright
00013  *    notice, this list of conditions and the following disclaimer in the
00014  *    documentation and/or other materials provided with the distribution.
00015  *
00016  * 3. Neither the name of the Institute nor the names of its contributors
00017  *    may be used to endorse or promote products derived from this software
00018  *    without specific prior written permission.
00019  *
00020  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
00021  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00022  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00023  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
00024  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00025  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00026  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00027  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00028  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00029  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00030  * SUCH DAMAGE.
00031  *
00032  * Author: Adam Dunkels <adam@sics.se>
00033  *
00034  * $Id: tapdev.c,v 1.8 2006/06/07 08:39:58 adam Exp $
00035  */
00036 
00037 #include "mbed.h"
00038 
00039 #include "enc28j60.h"
00040 #include "uip.h"
00041 
00042 #if defined(TARGET_LPC1768)
00043 SPI spi(p11, p12, p13); // mosi, miso, sclk
00044 ENC28J60 enc28j60(&spi, p14, p15); // cs, int
00045 #elif defined(TARGET_LPC1114)
00046 SPI spi(dp2, dp1, dp6); // mosi, miso, sclk
00047 ENC28J60 enc28j60(&spi, dp25, dp26); // cs, int
00048 #else
00049 #error no defined tapdev.
00050 #endif
00051 
00052 /*---------------------------------------------------------------------------*/
00053 void
00054 tapdev_init(void)
00055 {
00056     enc28j60.init();
00057 
00058     //enc28j60.regDump();
00059 
00060 }
00061 /*---------------------------------------------------------------------------*/
00062 unsigned int
00063 tapdev_read(void)
00064 {
00065     unsigned int len;
00066     len = enc28j60.packetReceive(UIP_BUFSIZE, (u8 *)uip_buf);
00067     return len;
00068 }
00069 /*---------------------------------------------------------------------------*/
00070 void
00071 tapdev_send(void)
00072 {
00073     enc28j60.packetSend(uip_len, (u8 *)uip_buf);
00074     
00075     /*
00076     if(uip_len <= 40 + UIP_LLH_LEN){
00077         enc28j60.packetSend(uip_len, (u8 *)uip_buf);
00078     }else{
00079         enc28j60.packetSend2(54, (u8 *)uip_buf, uip_len -40 - UIP_LLH_LEN, (u8 *)uip_appdata);
00080     }
00081     */
00082 }
00083 /*---------------------------------------------------------------------------*/