335 lines
8.4 KiB
C
335 lines
8.4 KiB
C
/*
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* Copyright (c) 2002, Adam Dunkels.
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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
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the Contiki OS
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*
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*/
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/**
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* \ingroup platform
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*
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* \defgroup native_platform Native platform
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*
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* Platform running in the host (Windows or Linux) environment.
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*
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* Used mainly for development and debugging.
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* @{
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/select.h>
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#include <errno.h>
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#ifdef __CYGWIN__
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#include "net/wpcap-drv.h"
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#endif /* __CYGWIN__ */
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#include "contiki.h"
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#include "net/netstack.h"
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#include "dev/serial-line.h"
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#include "dev/button-hal.h"
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#include "dev/gpio-hal.h"
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#include "dev/leds.h"
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#include "net/ipv6/uip.h"
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#include "net/ipv6/uip-debug.h"
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#include "net/queuebuf.h"
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#if NETSTACK_CONF_WITH_IPV6
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#include "net/ipv6/uip-ds6.h"
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#endif /* NETSTACK_CONF_WITH_IPV6 */
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/* Log configuration */
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#include "sys/log.h"
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#define LOG_MODULE "Native"
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#define LOG_LEVEL LOG_LEVEL_MAIN
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/*---------------------------------------------------------------------------*/
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/**
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* \name Native Platform Configuration
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*
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* @{
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*/
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/*
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* Defines the maximum number of file descriptors monitored by the platform
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* main loop.
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*/
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#ifdef SELECT_CONF_MAX
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#define SELECT_MAX SELECT_CONF_MAX
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#else
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#define SELECT_MAX 8
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#endif
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/*
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* Defines the timeout (in msec) of the select operation if no monitored file
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* descriptors becomes ready.
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*/
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#ifdef SELECT_CONF_TIMEOUT
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#define SELECT_TIMEOUT SELECT_CONF_TIMEOUT
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#else
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#define SELECT_TIMEOUT 1000
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#endif
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/*
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* Adds the STDIN file descriptor to the list of monitored file descriptors.
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*/
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#ifdef SELECT_CONF_STDIN
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#define SELECT_STDIN SELECT_CONF_STDIN
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#else
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#define SELECT_STDIN 1
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#endif
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/** @} */
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/*---------------------------------------------------------------------------*/
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static const struct select_callback *select_callback[SELECT_MAX];
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static int select_max = 0;
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#ifdef PLATFORM_CONF_MAC_ADDR
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static uint8_t mac_addr[] = PLATFORM_CONF_MAC_ADDR;
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#else /* PLATFORM_CONF_MAC_ADDR */
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static uint8_t mac_addr[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
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#endif /* PLATFORM_CONF_MAC_ADDR */
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/*---------------------------------------------------------------------------*/
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int
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select_set_callback(int fd, const struct select_callback *callback)
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{
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int i;
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if(fd >= 0 && fd < SELECT_MAX) {
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/* Check that the callback functions are set */
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if(callback != NULL &&
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(callback->set_fd == NULL || callback->handle_fd == NULL)) {
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callback = NULL;
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}
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select_callback[fd] = callback;
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/* Update fd max */
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if(callback != NULL) {
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if(fd > select_max) {
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select_max = fd;
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}
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} else {
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select_max = 0;
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for(i = SELECT_MAX - 1; i > 0; i--) {
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if(select_callback[i] != NULL) {
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select_max = i;
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break;
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}
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}
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}
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return 1;
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}
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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#if SELECT_STDIN
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static int
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stdin_set_fd(fd_set *rset, fd_set *wset)
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{
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FD_SET(STDIN_FILENO, rset);
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return 1;
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}
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static void
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stdin_handle_fd(fd_set *rset, fd_set *wset)
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{
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char c;
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if(FD_ISSET(STDIN_FILENO, rset)) {
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if(read(STDIN_FILENO, &c, 1) > 0) {
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serial_line_input_byte(c);
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}
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}
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}
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const static struct select_callback stdin_fd = {
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stdin_set_fd, stdin_handle_fd
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};
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#endif /* SELECT_STDIN */
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/*---------------------------------------------------------------------------*/
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static void
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set_lladdr(void)
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{
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linkaddr_t addr;
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memset(&addr, 0, sizeof(linkaddr_t));
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#if NETSTACK_CONF_WITH_IPV6
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memcpy(addr.u8, mac_addr, sizeof(addr.u8));
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#else
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int i;
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for(i = 0; i < sizeof(linkaddr_t); ++i) {
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addr.u8[i] = mac_addr[7 - i];
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}
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#endif
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linkaddr_set_node_addr(&addr);
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}
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/*---------------------------------------------------------------------------*/
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#if NETSTACK_CONF_WITH_IPV6
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static void
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set_global_address(void)
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{
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static uip_ipaddr_t ipaddr;
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/* Assign a unique local address (RFC4193,
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http://tools.ietf.org/html/rfc4193). */
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uip_ip6addr(&ipaddr, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0, 0, 0);
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/* Assumes that the uip_lladdr is set */
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uip_ds6_set_addr_iid(&ipaddr, &uip_lladdr);
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uip_ds6_addr_add(&ipaddr, 0, ADDR_AUTOCONF);
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LOG_INFO("Added global IPv6 address ");
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LOG_INFO_6ADDR(&ipaddr);
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LOG_INFO_("\n");
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/* set the PREFIX::1 address to the IF */
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uip_ip6addr(&ipaddr, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0, 0, 1);
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uip_ds6_defrt_add(&ipaddr, 0);
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}
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#endif
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/*---------------------------------------------------------------------------*/
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int contiki_argc = 0;
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char **contiki_argv;
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/*---------------------------------------------------------------------------*/
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void
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platform_process_args(int argc, char**argv)
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{
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/* crappy way of remembering and accessing argc/v */
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contiki_argc = argc;
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contiki_argv = argv;
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/* native under windows is hardcoded to use the first one or two args */
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/* for wpcap configuration so this needs to be "removed" from */
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/* contiki_args (used by the native-border-router) */
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#ifdef __CYGWIN__
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contiki_argc--;
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contiki_argv++;
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#ifdef UIP_FALLBACK_INTERFACE
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contiki_argc--;
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contiki_argv++;
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#endif
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#endif
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}
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/*---------------------------------------------------------------------------*/
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void
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platform_init_stage_one()
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{
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gpio_hal_init();
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button_hal_init();
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leds_init();
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return;
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}
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/*---------------------------------------------------------------------------*/
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void
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platform_init_stage_two()
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{
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set_lladdr();
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serial_line_init();
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}
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/*---------------------------------------------------------------------------*/
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void
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platform_init_stage_three()
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{
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#if NETSTACK_CONF_WITH_IPV6
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#ifdef __CYGWIN__
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process_start(&wpcap_process, NULL);
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#endif
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set_global_address();
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#endif /* NETSTACK_CONF_WITH_IPV6 */
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/* Make standard output unbuffered. */
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setvbuf(stdout, (char *)NULL, _IONBF, 0);
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}
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/*---------------------------------------------------------------------------*/
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void
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platform_main_loop()
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{
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#if SELECT_STDIN
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select_set_callback(STDIN_FILENO, &stdin_fd);
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#endif /* SELECT_STDIN */
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while(1) {
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fd_set fdr;
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fd_set fdw;
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int maxfd;
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int i;
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int retval;
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struct timeval tv;
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retval = process_run();
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tv.tv_sec = 0;
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tv.tv_usec = retval ? 1 : SELECT_TIMEOUT;
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FD_ZERO(&fdr);
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FD_ZERO(&fdw);
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maxfd = 0;
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for(i = 0; i <= select_max; i++) {
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if(select_callback[i] != NULL && select_callback[i]->set_fd(&fdr, &fdw)) {
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maxfd = i;
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}
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}
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retval = select(maxfd + 1, &fdr, &fdw, NULL, &tv);
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if(retval < 0) {
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if(errno != EINTR) {
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perror("select");
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}
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} else if(retval > 0) {
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/* timeout => retval == 0 */
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for(i = 0; i <= maxfd; i++) {
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if(select_callback[i] != NULL) {
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select_callback[i]->handle_fd(&fdr, &fdw);
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}
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}
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}
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etimer_request_poll();
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}
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return;
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}
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/*---------------------------------------------------------------------------*/
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void
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log_message(char *m1, char *m2)
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{
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fprintf(stderr, "%s%s\n", m1, m2);
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}
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/*---------------------------------------------------------------------------*/
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void
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uip_log(char *m)
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{
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fprintf(stderr, "%s\n", m);
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}
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/*---------------------------------------------------------------------------*/
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/** @} */
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