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Generic Ethernet driver for cc65 targets. The actual hardware driver is loaded as relocatable module.
This commit is contained in:
oliverschmidt
parent
d474777ff8
commit
da44474fd4
@ -30,7 +30,7 @@
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#
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# Author: Oliver Schmidt <ol.sc@web.de>
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#
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# $Id: Makefile.6502,v 1.12 2007/08/30 20:47:14 oliverschmidt Exp $
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# $Id: Makefile.6502,v 1.13 2007/11/20 21:12:00 oliverschmidt Exp $
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#
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ifndef CONTIKI
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@ -49,12 +49,15 @@ ifndef LD65_OBJ
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${error LD65_OBJ not defined! You must specify where the cc65 objects reside!}
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endif
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all: cs8900a.eth
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CONTIKI_TARGET_DIRS = .
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CONTIKI_CPU_DIRS = . net sys
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CONTIKI_TARGET_MAIN = ${addprefix $(OBJECTDIR)/,contiki-main.o}
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CONTIKI_TARGET_SOURCEFILES = contiki-main.c
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CONTIKI_CPU_SOURCEFILES = clock.c mtarch.c mtarch-asm.S lc-asm.S uip_arch.c
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CONTIKI_CPU_SOURCEFILES = clock.c mtarch.c mtarch-asm.S lc-asm.S \
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uip_arch.c ethernet-drv.c ethernet.c
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CONTIKI_SOURCEFILES += $(CONTIKI_CPU_SOURCEFILES) $(CONTIKI_TARGET_SOURCEFILES)
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@ -93,3 +96,6 @@ CUSTOM_RULE_C_TO_CO = 1
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$(CC) $(CFLAGS) -DAUTOSTART_ENABLE $< -o $(@:.co=.s)
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@$(AS) $(ASFLAGS) $(@:.co=.s) -o $@
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@rm -f $(@:.co=.s)
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%.eth: $(OBJECTDIR)/%.o
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$(LD) -t module -m $@.map $< -o $@
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102
cpu/6502/net/ethernet-drv.c
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102
cpu/6502/net/ethernet-drv.c
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@ -0,0 +1,102 @@
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/*
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* Copyright (c) 2007, Swedish Institute of Computer Science
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* @(#)$Id: ethernet-drv.c,v 1.1 2007/11/20 21:10:20 oliverschmidt Exp $
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*/
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#include <stdio.h>
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#include "contiki-net.h"
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#include "ethernet.h"
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#include "net/uip-neighbor.h"
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#include "ethernet-drv.h"
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#define BUF ((struct uip_eth_hdr *)&uip_buf[0])
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PROCESS(ethernet_process, "Ethernet driver");
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/*---------------------------------------------------------------------------*/
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u8_t
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ethernet_output(void)
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{
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uip_arp_out();
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ethernet_send();
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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static void
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pollhandler(void)
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{
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process_poll(ðernet_process);
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uip_len = ethernet_poll();
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if(uip_len > 0) {
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#if UIP_CONF_IPV6
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if(BUF->type == htons(UIP_ETHTYPE_IPV6)) {
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uip_neighbor_add(&IPBUF->srcipaddr, &BUF->src);
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tcpip_input();
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} else
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#endif /* UIP_CONF_IPV6 */
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if(BUF->type == htons(UIP_ETHTYPE_IP)) {
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uip_len -= sizeof(struct uip_eth_hdr);
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tcpip_input();
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} else if(BUF->type == htons(UIP_ETHTYPE_ARP)) {
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uip_arp_arpin();
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/* If the above function invocation resulted in data that
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should be sent out on the network, the global variable
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uip_len is set to a value > 0. */
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if(uip_len > 0) {
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ethernet_send();
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}
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}
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}
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(ethernet_process, ev, data)
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{
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PROCESS_POLLHANDLER(pollhandler());
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PROCESS_BEGIN();
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ethernet_init((struct ethernet_config *)data);
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tcpip_set_outputfunc(ethernet_output);
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process_poll(ðernet_process);
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PROCESS_WAIT_UNTIL(ev == PROCESS_EVENT_EXIT);
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ethernet_exit();
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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48
cpu/6502/net/ethernet-drv.h
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48
cpu/6502/net/ethernet-drv.h
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@ -0,0 +1,48 @@
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/*
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* Copyright (c) 2007, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: ethernet-drv.h,v 1.1 2007/11/20 21:10:20 oliverschmidt Exp $
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*/
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#ifndef __ETHERNET_DRV_H__
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#define __ETHERNET_DRV_H__
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#include "contiki.h"
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struct ethernet_config {
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u16_t addr;
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char name[12+1];
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};
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PROCESS_NAME(ethernet_process);
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u8_t ethernet_output(void);
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#endif /* __ETHERNET_DRV_H__ */
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128
cpu/6502/net/ethernet.c
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128
cpu/6502/net/ethernet.c
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@ -0,0 +1,128 @@
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/*
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* Copyright (c) 2007, Swedish Institute of Computer Science
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* Author: Oliver Schmidt <ol.sc@web.de>
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*
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* @(#)$Id: ethernet.c,v 1.1 2007/11/20 21:10:21 oliverschmidt Exp $
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <modload.h>
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#include "contiki-net.h"
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#include "ethernet-drv.h"
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#include "ethernet.h"
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struct {
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char signature[4];
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struct uip_eth_addr ethernet_address;
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u8_t *buffer;
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u16_t buffer_size;
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void __fastcall__ (* init)(u16_t reg);
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u16_t (* poll)(void);
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void __fastcall__ (* send)(u16_t len);
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void (* exit)(void);
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} *module;
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/*---------------------------------------------------------------------------*/
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static void
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error_exit(void)
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{
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fprintf(stderr, "Press any key to continue ...\n");
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getchar();
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exit(EXIT_FAILURE);
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}
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/*---------------------------------------------------------------------------*/
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void
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ethernet_init(struct ethernet_config *config)
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{
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static const char signature[4] = {0x65, 0x74, 0x68, 0x01};
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struct mod_ctrl module_control = {read};
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u8_t byte;
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module_control.callerdata = open(config->name, O_RDONLY);
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if(module_control.callerdata == -1) {
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fprintf(stderr, "%s: %s\n", config->name, strerror(errno));
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error_exit();
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}
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byte = mod_load(&module_control);
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if(byte != MLOAD_OK) {
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if(byte == MLOAD_ERR_MEM) {
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fprintf(stderr, "%s: %s\n", config->name, strerror(ENOMEM));
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} else {
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fprintf(stderr, "%s: %s %d\n", config->name, "Error", byte);
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}
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error_exit();
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}
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close(module_control.callerdata);
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module = module_control.module;
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for(byte = 0; byte < 4; byte++) {
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if(module->signature[byte] != signature[byte]) {
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fprintf(stderr, "%s: %s\n", config->name, "No ETH Driver");
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error_exit();
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}
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}
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module->buffer = uip_buf;
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module->buffer_size = UIP_BUFSIZE;
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module->init(config->addr);
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uip_setethaddr(module->ethernet_address);
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}
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/*---------------------------------------------------------------------------*/
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u16_t
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ethernet_poll(void)
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{
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return module->poll();
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}
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/*---------------------------------------------------------------------------*/
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void
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ethernet_send(void)
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{
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module->send(uip_len);
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}
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/*---------------------------------------------------------------------------*/
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void
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ethernet_exit(void)
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{
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module->exit();
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mod_free(module);
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}
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/*---------------------------------------------------------------------------*/
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44
cpu/6502/net/ethernet.h
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44
cpu/6502/net/ethernet.h
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@ -0,0 +1,44 @@
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/*
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* Copyright (c) 2007, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
|
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* Author: Oliver Schmidt <ol.sc@web.de>
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*
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* $Id: ethernet.h,v 1.1 2007/11/20 21:10:21 oliverschmidt Exp $
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*/
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#ifndef __ETHERNET_H__
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#define __ETHERNET_H__
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void ethernet_init(struct ethernet_config *config);
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u16_t ethernet_poll(void);
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void ethernet_send(void);
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void ethernet_exit(void);
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#endif /* __ETHERNET_H__ */
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