Multiple bugfixes and updates to xmac code by Niclas
This commit is contained in:
adamdunkels
parent
88de583f94
commit
1cb3bad088
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@ -1,5 +1,3 @@
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/* XXX: TODO: turn radio off when a packet not destined for us is heard. */
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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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@ -30,7 +28,7 @@
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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: xmac.c,v 1.8 2007/10/23 21:27:57 adamdunkels Exp $
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* $Id: xmac.c,v 1.9 2007/11/12 22:29:37 adamdunkels Exp $
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*/
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/**
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@ -46,59 +44,61 @@
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#include "dev/leds.h"
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#include "net/rime.h"
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#include "dev/radio.h"
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#include "lib/random.h"
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/*#include "lib/bb.h"*/
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#include "contiki-conf.h"
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#ifdef CHAMELEON
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#if CHAMELEON
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#include "net/chameleon/packattr.h"
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#endif
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#define WITH_RECEIVER 1
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#define WITH_QUEUE 0
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/*
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#undef XMAC_CONF_ON_TIME
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#undef XMAC_CONF_OFF_TIME
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#define XMAC_CONF_ON_TIME RTIMER_ARCH_SECOND / 100
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#define XMAC_CONF_OFF_TIME RTIMER_ARCH_SECOND / 10
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*/
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#if !CHAMELEON
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#if WITH_RECEIVER
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extern
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#else
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static
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#endif
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rimeaddr_t uc_receiver;
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#endif /* !CHAMELEON */
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struct powercycle {
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struct pt pt;
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struct rtimer rt;
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rtimer_clock_t ontime, offtime;
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int num_strobes;
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};
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/* struct powercycle { */
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/* struct pt pt; */
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/* struct rtimer rt; */
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/* rtimer_clock_t ontime, offtime; */
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/* int num_strobes; */
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/* }; */
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struct xmac_hdr {
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rimeaddr_t sender;
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rimeaddr_t receiver;
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};
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static struct rtimer rt;
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static struct pt pt;
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#ifdef XMAC_CONF_ON_TIME
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#define ON_TIME (XMAC_CONF_ON_TIME)
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#define DEFAULT_ON_TIME (XMAC_CONF_ON_TIME)
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#else
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#define ON_TIME (RTIMER_ARCH_SECOND / 100)
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#define DEFAULT_ON_TIME (RTIMER_ARCH_SECOND / 50)
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#endif
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#ifdef XMAC_CONF_OFF_TIME
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#define OFF_TIME (XMAC_CONF_OFF_TIME)
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#define DEFAULT_OFF_TIME (XMAC_CONF_OFF_TIME)
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#else
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#define OFF_TIME (ON_TIME * 10)
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#define DEFAULT_OFF_TIME ((RTIMER_ARCH_SECOND / 5) - DEFAULT_ON_TIME)
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#endif
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#define STROBE_WAIT_TIME (ON_TIME) / 2
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#define DEFAULT_STROBE_WAIT_TIME (DEFAULT_ON_TIME) / 2
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struct xmac_config xmac_config = {
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DEFAULT_ON_TIME, DEFAULT_OFF_TIME,
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DEFAULT_ON_TIME + DEFAULT_OFF_TIME,
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DEFAULT_STROBE_WAIT_TIME
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};
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#include <stdio.h>
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static struct rtimer rt;
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static struct pt pt;
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static volatile unsigned char should_be_awake = 0;
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static volatile unsigned char someone_is_sending = 0;
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@ -112,13 +112,15 @@ static const struct radio_driver *radio;
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#undef LEDS_OFF
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#undef LEDS_TOGGLE
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#include <stdio.h>
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#define DEBUG 0
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#if DEBUG
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#define BB_SET(x,y)
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#define BB_INC(x,y)
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/* #define BB_SET(x,y) bb_set(x,y) */
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/* #define BB_INC(x,y) bb_inc(x,y) */
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#define LEDS_ON(x) leds_on(x)
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#define LEDS_OFF(x) leds_off(x)
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#define LEDS_TOGGLE(x) leds_toggle(x)
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#define DEBUG 0
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#if DEBUG
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#include <stdio.h>
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#define PRINTF(...) printf(__VA_ARGS__)
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#else
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@ -140,31 +142,43 @@ static char
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powercycle(struct rtimer *t, void *ptr)
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{
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int r;
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PT_BEGIN(&pt);
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while(1) {
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/* rtimer_clock_t t1, t2; */
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/* t1 = rtimer_arch_now(); */
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if(should_be_awake == 0) {
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radio->off();
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radio_is_on = 0;
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LEDS_OFF(LEDS_RED);
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} else {
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should_be_awake++;
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if(should_be_awake > 2) {
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should_be_awake = 0;
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if(we_are_sending) {
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PRINTF("xmac: we are sending 1, stopping timer\n");
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PT_YIELD(&pt);
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}
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/* Only wait for some cycles to pass for someone to start sending */
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if(someone_is_sending > 0) {
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someone_is_sending--;
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}
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if(xmac_config.off_time > 0) {
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if(should_be_awake == 0) {
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radio->off();
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LEDS_OFF(LEDS_RED);
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radio_is_on = 0;
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} else {
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should_be_awake++;
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if(should_be_awake > 2) {
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should_be_awake = 0;
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}
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}
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r = rtimer_set(t, RTIMER_TIME(t) + xmac_config.off_time, 1,
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(void (*)(struct rtimer *, void *))powercycle, ptr);
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if(r) {
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PRINTF("xmac: 1 could not set rtimer %d\n", r);
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}
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}
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r = rtimer_set(t, RTIMER_TIME(t) + OFF_TIME, 1,
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(void (*)(struct rtimer *, void *))powercycle, ptr);
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if(r) {
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PRINTF("xmac: 1 could not set rtimer %d\n", r);
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}
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/* t2 = rtimer_arch_now(); */
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/* printf("xmac 1 %d\n", t2 - t1); */
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PT_YIELD(&pt);
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PT_YIELD(&pt);
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}
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if(we_are_sending) {
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PRINTF("xmac: we are sending 1, stopping timer\n");
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@ -174,10 +188,10 @@ powercycle(struct rtimer *t, void *ptr)
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/* t1 = rtimer_arch_now(); */
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if(radio_is_on == 0) {
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radio->on();
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radio_is_on = 1;
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LEDS_ON(LEDS_RED);
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radio_is_on = 1;
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}
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r = rtimer_set(t, RTIMER_TIME(t) + ON_TIME, 1,
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r = rtimer_set(t, RTIMER_TIME(t) + xmac_config.on_time, 1,
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(void (*)(struct rtimer *, void *))powercycle, ptr);
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if(r) {
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PRINTF("xmac: 2 could not set rtimer %d\n", r);
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@ -191,22 +205,24 @@ powercycle(struct rtimer *t, void *ptr)
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PRINTF("xmac: we are sending 2, stopping timer\n");
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PT_YIELD(&pt);
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}
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if(long_off) {
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/* XXX should wait for a complete packet that is not destined to
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us to swisch past us. */
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radio->off();
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radio_is_on = 0;
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LEDS_OFF(LEDS_RED);
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if(rtimer_set(t, RTIMER_TIME(t) + OFF_TIME, 1,
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(void (*)(struct rtimer *, void *))powercycle, ptr)) {
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PRINTF("xmac: could not set long off rtimer\n");
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if(xmac_config.off_time > 0) {
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/* XXX should wait for a complete packet that is not destined to
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us to swisch past us. */
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radio->off();
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LEDS_OFF(LEDS_RED);
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radio_is_on = 0;
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if(rtimer_set(t, RTIMER_TIME(t) + xmac_config.off_time, 1,
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(void (*)(struct rtimer *, void *))powercycle, ptr)) {
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PRINTF("xmac: could not set long off rtimer\n");
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}
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}
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long_off = 0;
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someone_is_sending = 0;
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}
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}
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PT_END(&pt);
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@ -215,25 +231,26 @@ powercycle(struct rtimer *t, void *ptr)
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static int
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send(void)
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{
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rtimer_clock_t t0, t1;
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rtimer_clock_t t0;
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rtimer_clock_t t;
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int strobes;
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struct xmac_hdr *hdr;
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int got_ack = 0;
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struct xmac_hdr msg;
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rtimer_clock_t t;
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int len;
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we_are_sending = 1;
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radio->on();
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LEDS_ON(LEDS_RED);
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radio_is_on = 1;
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/* printf("xmac_send\n");*/
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#if !CHAMELEON
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PRINTF("xmac: send() len %d to %d.%d\n", rimebuf_totlen(),
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uc_receiver.u8[0], uc_receiver.u8[1]);
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#endif
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rimebuf_hdralloc(sizeof(struct xmac_hdr));
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hdr = rimebuf_hdrptr();
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rimeaddr_copy(&hdr->sender, &rimeaddr_node_addr);
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@ -250,11 +267,19 @@ send(void)
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t0 = RTIMER_NOW();
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strobes = 0;
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BB_SET(XMAC_RECEIVER, hdr->receiver.u16[0]);
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LEDS_ON(LEDS_YELLOW);
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do {
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if(strobes & 1) {
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LEDS_OFF(LEDS_GREEN);
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} else {
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LEDS_ON(LEDS_GREEN);
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}
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t = RTIMER_NOW();
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LEDS_TOGGLE(LEDS_GREEN);
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rimeaddr_copy(&msg.sender, &rimeaddr_node_addr);
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#if CHAMELEON
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rimeaddr_copy(&msg.receiver, packattr_aget(PACKATTR_RECEIVER));
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@ -268,50 +293,72 @@ send(void)
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rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1]);*/
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radio->send((const u8_t *)&msg, sizeof(struct xmac_hdr));
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while(RTIMER_CLOCK_LT(RTIMER_NOW(), t + STROBE_WAIT_TIME)) {
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printf("now %d then %d wait %d\n",
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RTIMER_NOW(), t, STROBE_WAIT_TIME);
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while(RTIMER_CLOCK_LT(RTIMER_NOW(), t + xmac_config.strobe_wait_time)) {
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PRINTF("xmac: now %u then %u wait %d\n",
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RTIMER_NOW(), t, xmac_config.strobe_wait_time);
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/* See if we got an ACK */
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/* printf("befor read\n");*/
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/* printf("before read\n");*/
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len = radio->read((u8_t *)&msg, sizeof(struct xmac_hdr));
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/* printf("after read len %d\n", len);*/
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if(len > 0) {
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PRINTF("xmac len %d sender %d.%d receiver %d.%d node %d.%d.\n", len,
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PRINTF("xmac: len %d sender %d.%d receiver %d.%d node %d.%d.\n", len,
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msg.sender.u8[0],msg.sender.u8[1],
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msg.receiver.u8[0],msg.receiver.u8[1],
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rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1]);
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if(rimeaddr_cmp(&msg.receiver, &rimeaddr_node_addr)) {
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/* if(rimeaddr_cmp(&msg.receiver, &rimeaddr_node_addr)) { */
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if(rimeaddr_cmp(&msg.sender, &rimeaddr_node_addr) &&
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rimeaddr_cmp(&msg.receiver, &rimeaddr_node_addr)) {
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/* We got an ACK from the receiver, so we can immediately send
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the packet. */
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got_ack = 1;
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break;
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/* } else if(rimeaddr_cmp(&msg.sender, &hdr->receiver)) { */
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/* /\* We did not get an ACK from the receiver, but the receiver */
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/* is active so we can send the packet after a short random */
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/* duration. *\/ */
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/* clock_delay(random_rand() & 0x1ff); */
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/* got_ack = 1; */
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/* break; */
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} else {
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RIMESTATS_ADD(sendingdrop);
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/* RIMESTATS_ADD(sendingdrop);*/
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}
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}
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}
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/* PRINTF("xmac Strobe %d got_ack %d\n", strobes, got_ack);*/
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++strobes;
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if(got_ack) {
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break;
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}
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} while(RTIMER_CLOCK_LT(RTIMER_NOW(), t0 + OFF_TIME + ON_TIME));
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} while(RTIMER_CLOCK_LT(RTIMER_NOW(), t0 + xmac_config.strobe_time));
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LEDS_OFF(LEDS_YELLOW);
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radio->send(rimebuf_hdrptr(), rimebuf_totlen());
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PRINTF("xmac: send, done\n");
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PRINTF("xmac: send (strobes=%u,len=%u,%s), done\n", strobes,
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rimebuf_totlen(), got_ack ? "ack" : "no ack");
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BB_SET(XMAC_STROBES, strobes);
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if(got_ack) {
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BB_INC(XMAC_SEND_WITH_ACK, 1);
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} else {
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BB_INC(XMAC_SEND_WITH_NOACK, 1);
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}
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/* printf("Strobe %d got_ack %d\n", strobes, got_ack);*/
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we_are_sending = 0;
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LEDS_OFF(LEDS_GREEN);
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PT_INIT(&pt);
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if(rtimer_set(&rt, RTIMER_NOW() + ON_TIME, 1,
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(void (*)(struct rtimer *, void *))powercycle, NULL)) {
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PRINTF("xmac: could not set rtimer after send\n");
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if((len = rtimer_set(&rt, RTIMER_NOW() + xmac_config.on_time, 1,
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(void (*)(struct rtimer *, void *))powercycle, NULL)) != 0) {
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PRINTF("xmac: could not set rtimer after send (%d)\n", len);
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}
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we_are_sending = 0;
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/* we_are_sending = 0; */
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return 1;
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}
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@ -324,14 +371,14 @@ qsend(void)
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PRINTF("xmac: should queue packet, now just dropping %d %d %d %d.\n",
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should_be_awake, someone_is_sending, we_are_sending, radio_is_on);
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if(queued_packet != NULL) {
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RIMESTATS_ADD(contentiondrop);
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RIMESTATS_ADD(sendingdrop);
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return 0;
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} else {
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#if WITH_QUEUE
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queued_packet = queuebuf_new_from_rimebuf();
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return 1;
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#else
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RIMESTATS_ADD(contentiondrop);
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RIMESTATS_ADD(sendingdrop);
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return 0;
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#endif
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}
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@ -339,7 +386,7 @@ qsend(void)
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PRINTF("xmac: send immediately.\n");
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return send();
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}
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}
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/*---------------------------------------------------------------------------*/
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static void
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@ -355,23 +402,25 @@ read(void)
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{
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struct xmac_hdr *hdr;
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u8_t len;
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rimebuf_clear();
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PRINTF("xmac: input ");
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len = radio->read(rimebuf_dataptr(), RIMEBUF_SIZE);
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PRINTF("%d bytes\n", len);
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if(len > 0) {
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someone_is_sending = 1;
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someone_is_sending = 2;
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rimebuf_set_datalen(len);
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hdr = rimebuf_dataptr();
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rimebuf_hdrreduce(sizeof(struct xmac_hdr));
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if(rimeaddr_cmp(&hdr->receiver, &rimeaddr_node_addr)) {
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should_be_awake = 1;
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PRINTF("xmac: for us\n");
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/* Only send strobe ack if the packet itself is not a strobe ack
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to us. */
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if(!rimeaddr_cmp(&hdr->sender, &rimeaddr_node_addr) &&
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rimebuf_totlen() == 0) {
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/* XXX Send an ACK and wait for packet . */
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@ -379,10 +428,12 @@ read(void)
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hdr->sender.u8[0],hdr->sender.u8[1],
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hdr->receiver.u8[0],hdr->receiver.u8[1]);
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while(!radio_is_on) {}
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{
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struct xmac_hdr msg;
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rimeaddr_copy(&msg.receiver, &hdr->sender);
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/* Using the same address as both sender and receiver will
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flag the message as a strobe ack. */
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rimeaddr_copy(&msg.sender, &hdr->sender);
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PRINTF("xmac: sending sender %d.%d receiver %d.%d\n",
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msg.sender.u8[0],msg.sender.u8[1],
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@ -400,14 +451,13 @@ read(void)
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/* Go back to sleep. XXX should not turn on the radio again
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until this packet has passed. */
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should_be_awake = 0;
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someone_is_sending = 1;
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long_off = 1;
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/* XXX set timer to turn someone_is_sending off again and send queued packet. */
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/* PRINTF("xmac: not for us\n");*/
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}
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if(rimebuf_totlen() > 0) {
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/* We have received the final packet, so we can go back to being
|
||||
asleep. */
|
||||
someone_is_sending = 0;
|
||||
|
|
@ -426,6 +476,26 @@ read(void)
|
|||
return 0;
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
const struct mac_driver *
|
||||
xmac_init(const struct radio_driver *d)
|
||||
{
|
||||
radio_is_on = 0;
|
||||
should_be_awake = 0;
|
||||
PT_INIT(&pt);
|
||||
rtimer_set(&rt, RTIMER_NOW() + xmac_config.off_time, 1,
|
||||
(void (*)(struct rtimer *, void *))powercycle, NULL);
|
||||
|
||||
radio = d;
|
||||
radio->set_receive_function(input);
|
||||
|
||||
BB_SET("xmac.state_addr", (int) &should_be_awake);
|
||||
BB_SET(XMAC_RECEIVER, 0);
|
||||
BB_SET(XMAC_STROBES, 0);
|
||||
BB_SET(XMAC_SEND_WITH_ACK, 0);
|
||||
BB_SET(XMAC_SEND_WITH_NOACK, 0);
|
||||
return &xmac_driver;
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static int
|
||||
on(void)
|
||||
{
|
||||
|
|
@ -446,18 +516,3 @@ const struct mac_driver xmac_driver =
|
|||
on,
|
||||
off
|
||||
};
|
||||
/*---------------------------------------------------------------------------*/
|
||||
const struct mac_driver *
|
||||
xmac_init(const struct radio_driver *d)
|
||||
{
|
||||
radio_is_on = 0;
|
||||
should_be_awake = 0;
|
||||
PT_INIT(&pt);
|
||||
rtimer_set(&rt, RTIMER_NOW() + OFF_TIME, 1,
|
||||
(void (*)(struct rtimer *, void *))powercycle, NULL);
|
||||
|
||||
radio = d;
|
||||
radio->set_receive_function(input);
|
||||
return &xmac_driver;
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
|
|
|
|||
|
|
@ -28,7 +28,7 @@
|
|||
*
|
||||
* This file is part of the Contiki operating system.
|
||||
*
|
||||
* $Id: xmac.h,v 1.5 2007/10/23 20:57:37 adamdunkels Exp $
|
||||
* $Id: xmac.h,v 1.6 2007/11/12 22:29:37 adamdunkels Exp $
|
||||
*/
|
||||
|
||||
/**
|
||||
|
|
@ -41,11 +41,27 @@
|
|||
#ifndef __XMAC_H__
|
||||
#define __XMAC_H__
|
||||
|
||||
#include "sys/rtimer.h"
|
||||
#include "net/mac/mac.h"
|
||||
#include "dev/radio.h"
|
||||
|
||||
#define XMAC_RECEIVER "xmac.recv"
|
||||
#define XMAC_STROBES "xmac.strobes"
|
||||
#define XMAC_SEND_WITH_ACK "xmac.send.ack"
|
||||
#define XMAC_SEND_WITH_NOACK "xmac.send.noack"
|
||||
|
||||
|
||||
struct xmac_config {
|
||||
rtimer_clock_t on_time;
|
||||
rtimer_clock_t off_time;
|
||||
rtimer_clock_t strobe_time;
|
||||
rtimer_clock_t strobe_wait_time;
|
||||
};
|
||||
|
||||
extern const struct mac_driver xmac_driver;
|
||||
|
||||
const struct mac_driver *xmac_init(const struct radio_driver *d);
|
||||
|
||||
extern struct xmac_config xmac_config;
|
||||
|
||||
#endif /* __XMAC_H__ */
|
||||
|
|
|
|||
Loading…
Reference in a new issue