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Generic Ethernet driver for cc65 targets. The actual hardware driver is loaded as relocatable module.

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This commit is contained in:
oliverschmidt 2007-11-20 21:10:20 +00:00
parent d474777ff8
commit da44474fd4
5 changed files with 330 additions and 2 deletions
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10
cpu/6502/Makefile.6502
View file

@ -30,7 +30,7 @@
#
# Author: Oliver Schmidt <ol.sc@web.de>
#
# $Id: Makefile.6502,v 1.12 2007/08/30 20:47:14 oliverschmidt Exp $
# $Id: Makefile.6502,v 1.13 2007/11/20 21:12:00 oliverschmidt Exp $
#
ifndef CONTIKI
@ -49,12 +49,15 @@ ifndef LD65_OBJ
${error LD65_OBJ not defined! You must specify where the cc65 objects reside!}
endif
all: cs8900a.eth
CONTIKI_TARGET_DIRS = .
CONTIKI_CPU_DIRS = . net sys
CONTIKI_TARGET_MAIN = ${addprefix $(OBJECTDIR)/,contiki-main.o}
CONTIKI_TARGET_SOURCEFILES = contiki-main.c
CONTIKI_CPU_SOURCEFILES = clock.c mtarch.c mtarch-asm.S lc-asm.S uip_arch.c
CONTIKI_CPU_SOURCEFILES = clock.c mtarch.c mtarch-asm.S lc-asm.S \
uip_arch.c ethernet-drv.c ethernet.c
CONTIKI_SOURCEFILES += $(CONTIKI_CPU_SOURCEFILES) $(CONTIKI_TARGET_SOURCEFILES)
@ -93,3 +96,6 @@ CUSTOM_RULE_C_TO_CO = 1
$(CC) $(CFLAGS) -DAUTOSTART_ENABLE $< -o $(@:.co=.s)
@$(AS) $(ASFLAGS) $(@:.co=.s) -o $@
@rm -f $(@:.co=.s)
%.eth: $(OBJECTDIR)/%.o
$(LD) -t module -m $@.map $< -o $@

102
cpu/6502/net/ethernet-drv.c Normal file
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@ -0,0 +1,102 @@
/*
* Copyright (c) 2007, 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: ethernet-drv.c,v 1.1 2007/11/20 21:10:20 oliverschmidt Exp $
*/
#include <stdio.h>
#include "contiki-net.h"
#include "ethernet.h"
#include "net/uip-neighbor.h"
#include "ethernet-drv.h"
#define BUF ((struct uip_eth_hdr *)&uip_buf[0])
PROCESS(ethernet_process, "Ethernet driver");
/*---------------------------------------------------------------------------*/
u8_t
ethernet_output(void)
{
uip_arp_out();
ethernet_send();
return 0;
}
/*---------------------------------------------------------------------------*/
static void
pollhandler(void)
{
process_poll(&ethernet_process);
uip_len = ethernet_poll();
if(uip_len > 0) {
#if UIP_CONF_IPV6
if(BUF->type == htons(UIP_ETHTYPE_IPV6)) {
uip_neighbor_add(&IPBUF->srcipaddr, &BUF->src);
tcpip_input();
} else
#endif /* UIP_CONF_IPV6 */
if(BUF->type == htons(UIP_ETHTYPE_IP)) {
uip_len -= sizeof(struct uip_eth_hdr);
tcpip_input();
} else if(BUF->type == htons(UIP_ETHTYPE_ARP)) {
uip_arp_arpin();
/* If the above function invocation resulted in data that
should be sent out on the network, the global variable
uip_len is set to a value > 0. */
if(uip_len > 0) {
ethernet_send();
}
}
}
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(ethernet_process, ev, data)
{
PROCESS_POLLHANDLER(pollhandler());
PROCESS_BEGIN();
ethernet_init((struct ethernet_config *)data);
tcpip_set_outputfunc(ethernet_output);
process_poll(&ethernet_process);
PROCESS_WAIT_UNTIL(ev == PROCESS_EVENT_EXIT);
ethernet_exit();
PROCESS_END();
}
/*---------------------------------------------------------------------------*/

48
cpu/6502/net/ethernet-drv.h Normal file
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@ -0,0 +1,48 @@
/*
* Copyright (c) 2007, 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: ethernet-drv.h,v 1.1 2007/11/20 21:10:20 oliverschmidt Exp $
*/
#ifndef __ETHERNET_DRV_H__
#define __ETHERNET_DRV_H__
#include "contiki.h"
struct ethernet_config {
u16_t addr;
char name[12+1];
};
PROCESS_NAME(ethernet_process);
u8_t ethernet_output(void);
#endif /* __ETHERNET_DRV_H__ */

128
cpu/6502/net/ethernet.c Normal file
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@ -0,0 +1,128 @@
/*
* Copyright (c) 2007, 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.
*
* Author: Oliver Schmidt <ol.sc@web.de>
*
* @(#)$Id: ethernet.c,v 1.1 2007/11/20 21:10:21 oliverschmidt Exp $
*/
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <modload.h>
#include "contiki-net.h"
#include "ethernet-drv.h"
#include "ethernet.h"
struct {
char signature[4];
struct uip_eth_addr ethernet_address;
u8_t *buffer;
u16_t buffer_size;
void __fastcall__ (* init)(u16_t reg);
u16_t (* poll)(void);
void __fastcall__ (* send)(u16_t len);
void (* exit)(void);
} *module;
/*---------------------------------------------------------------------------*/
static void
error_exit(void)
{
fprintf(stderr, "Press any key to continue ...\n");
getchar();
exit(EXIT_FAILURE);
}
/*---------------------------------------------------------------------------*/
void
ethernet_init(struct ethernet_config *config)
{
static const char signature[4] = {0x65, 0x74, 0x68, 0x01};
struct mod_ctrl module_control = {read};
u8_t byte;
module_control.callerdata = open(config->name, O_RDONLY);
if(module_control.callerdata == -1) {
fprintf(stderr, "%s: %s\n", config->name, strerror(errno));
error_exit();
}
byte = mod_load(&module_control);
if(byte != MLOAD_OK) {
if(byte == MLOAD_ERR_MEM) {
fprintf(stderr, "%s: %s\n", config->name, strerror(ENOMEM));
} else {
fprintf(stderr, "%s: %s %d\n", config->name, "Error", byte);
}
error_exit();
}
close(module_control.callerdata);
module = module_control.module;
for(byte = 0; byte < 4; byte++) {
if(module->signature[byte] != signature[byte]) {
fprintf(stderr, "%s: %s\n", config->name, "No ETH Driver");
error_exit();
}
}
module->buffer = uip_buf;
module->buffer_size = UIP_BUFSIZE;
module->init(config->addr);
uip_setethaddr(module->ethernet_address);
}
/*---------------------------------------------------------------------------*/
u16_t
ethernet_poll(void)
{
return module->poll();
}
/*---------------------------------------------------------------------------*/
void
ethernet_send(void)
{
module->send(uip_len);
}
/*---------------------------------------------------------------------------*/
void
ethernet_exit(void)
{
module->exit();
mod_free(module);
}
/*---------------------------------------------------------------------------*/

44
cpu/6502/net/ethernet.h Normal file
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@ -0,0 +1,44 @@
/*
* Copyright (c) 2007, 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.
*
* Author: Oliver Schmidt <ol.sc@web.de>
*
* $Id: ethernet.h,v 1.1 2007/11/20 21:10:21 oliverschmidt Exp $
*/
#ifndef __ETHERNET_H__
#define __ETHERNET_H__
void ethernet_init(struct ethernet_config *config);
u16_t ethernet_poll(void);
void ethernet_send(void);
void ethernet_exit(void);
#endif /* __ETHERNET_H__ */