Stopping watchdog before sending packets to allow for wait times longer than 1 second. Reduced default on time to 5 ms. Added option for turning off X-MAC but keeping the radio turned on.
This commit is contained in:
adamdunkels
parent
32a3fa5d4a
commit
be1dd57cb3
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@ -28,7 +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 1.15 2008/01/24 06:17:51 adamdunkels Exp $
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* $Id: xmac.c,v 1.16 2008/02/24 21:07:28 adamdunkels Exp $
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*/
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/**
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@ -45,6 +45,7 @@
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#include "net/rime.h"
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#include "net/rime/timesynch.h"
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#include "dev/radio.h"
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#include "dev/watchdog.h"
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#include "lib/random.h"
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/*#include "lib/bb.h"*/
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@ -58,7 +59,7 @@
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#define WITH_TIMETABLE 0
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#define WITH_CHANNEL_CHECK 0 /* Seems to work bad when enabled */
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#define WITH_TIMESYNCH 1
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#define WITH_TIMESYNCH 0
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#define WITH_RECEIVER 1
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#define WITH_QUEUE 0
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@ -79,21 +80,21 @@ struct xmac_hdr {
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#ifdef 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 DEFAULT_ON_TIME (RTIMER_ARCH_SECOND / 100)
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#define DEFAULT_ON_TIME (RTIMER_ARCH_SECOND / 200)
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#endif
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#ifdef 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 DEFAULT_OFF_TIME (RTIMER_ARCH_SECOND / 2 - DEFAULT_ON_TIME)
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#define DEFAULT_OFF_TIME (RTIMER_ARCH_SECOND / 8 - DEFAULT_ON_TIME)
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#endif
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#define DEFAULT_STROBE_WAIT_TIME (DEFAULT_ON_TIME / 2)
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#define DEFAULT_STROBE_WAIT_TIME (7 * DEFAULT_ON_TIME / 8)
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struct xmac_config xmac_config = {
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DEFAULT_ON_TIME,
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DEFAULT_OFF_TIME,
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2 * DEFAULT_ON_TIME + DEFAULT_OFF_TIME,
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20 * DEFAULT_ON_TIME + DEFAULT_OFF_TIME,
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DEFAULT_STROBE_WAIT_TIME
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};
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@ -141,7 +142,7 @@ static const struct radio_driver *radio;
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static void (* receiver_callback)(const struct mac_driver *);
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#if WITH_TIMETABLE
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#define xmac_timetable_size 256
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#define xmac_timetable_size 1024
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TIMETABLE_NONSTATIC(xmac_timetable);
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#endif /* WITH_TIMETABLE */
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/*---------------------------------------------------------------------------*/
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@ -154,7 +155,7 @@ set_receive_function(void (* recv)(const struct mac_driver *))
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static void
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on(void)
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{
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if(radio_is_on == 0) {
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if(xmac_is_on && radio_is_on == 0) {
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radio_is_on = 1;
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radio->on();
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LEDS_ON(LEDS_RED);
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@ -168,7 +169,7 @@ on(void)
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static void
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off(void)
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{
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if(radio_is_on != 0) {
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if(xmac_is_on && radio_is_on != 0) {
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radio_is_on = 0;
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radio->off();
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#if WITH_TIMETABLE
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@ -199,8 +200,7 @@ powercycle(struct rtimer *t, void *ptr)
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if(xmac_config.off_time > 0) {
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if(waiting_for_packet == 0) {
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if(xmac_is_on &&
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we_are_sending == 0) {
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if(we_are_sending == 0) {
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off();
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}
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} else {
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@ -244,8 +244,7 @@ powercycle(struct rtimer *t, void *ptr)
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PT_YIELD(&pt);
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}
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if(xmac_is_on &&
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we_are_sending == 0 &&
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if(we_are_sending == 0 &&
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waiting_for_packet == 0) {
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on();
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}
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@ -327,6 +326,7 @@ send_packet(void)
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broadcasts, don't turn radio on at all. */
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on();
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watchdog_stop();
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got_ack = 0;
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for(strobes = 0;
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got_ack == 0 &&
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@ -343,7 +343,11 @@ send_packet(void)
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#endif
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#if WITH_TIMETABLE
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TIMETABLE_TIMESTAMP(xmac_timetable, "send strobe");
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if(rimeaddr_cmp(&msg.receiver, &rimeaddr_null)) {
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TIMETABLE_TIMESTAMP(xmac_timetable, "send broadcast strobe");
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} else {
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TIMETABLE_TIMESTAMP(xmac_timetable, "send strobe");
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}
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#endif
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/* Send the strobe packet. */
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radio->send((const u8_t *)&msg, sizeof(struct xmac_hdr));
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@ -384,6 +388,9 @@ send_packet(void)
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#endif
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on(); /* Wait for possible ACK packet */
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} else {
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#if WITH_TIMETABLE
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TIMETABLE_TIMESTAMP(xmac_timetable, "send no ack received");
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#endif
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on(); /* shell ping don't seem to work with off() here, so we'll
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keep it on() for a while. */
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}
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@ -395,6 +402,7 @@ send_packet(void)
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radio->send(rimebuf_hdrptr(), rimebuf_totlen());
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CPRINTF("#");
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}
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watchdog_start();
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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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@ -572,10 +580,14 @@ turn_on(void)
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}
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/*---------------------------------------------------------------------------*/
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static int
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turn_off(void)
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turn_off(int keep_radio_on)
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{
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xmac_is_on = 0;
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return radio->off();
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if(keep_radio_on) {
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return radio->on();
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} else {
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return radio->off();
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}
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}
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/*---------------------------------------------------------------------------*/
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const struct mac_driver xmac_driver =
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