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Added name to mac structure. Do not turn radio on when sending a broadcast packet. Changed default off time to half a second.

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This commit is contained in:
adamdunkels 2008-06-30 08:10:02 +00:00
parent 247de015b5
commit 1093a8fe28
1 changed files with 12 additions and 5 deletions
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15
core/net/mac/xmac.c
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@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: xmac.c,v 1.18 2008/02/25 02:14:35 adamdunkels Exp $
* $Id: xmac.c,v 1.19 2008/06/30 08:10:02 adamdunkels Exp $
*/
/**
@ -76,7 +76,7 @@ struct xmac_hdr {
#ifdef XMAC_CONF_OFF_TIME
#define DEFAULT_OFF_TIME (XMAC_CONF_OFF_TIME)
#else
#define DEFAULT_OFF_TIME (RTIMER_ARCH_SECOND / 8 - DEFAULT_ON_TIME)
#define DEFAULT_OFF_TIME (RTIMER_ARCH_SECOND / 2 - DEFAULT_ON_TIME)
#endif
#define DEFAULT_STROBE_WAIT_TIME (7 * DEFAULT_ON_TIME / 8)
@ -260,6 +260,7 @@ send_packet(void)
int got_ack = 0;
struct xmac_hdr msg;
int len;
int is_broadcast = 0;
#if WITH_TIMETABLE
TIMETABLE_TIMESTAMP(xmac_timetable, "send");
@ -297,6 +298,9 @@ send_packet(void)
hdr = rimebuf_hdrptr();
rimeaddr_copy(&hdr->sender, &rimeaddr_node_addr);
rimeaddr_copy(&hdr->receiver, rimebuf_addr(RIMEBUF_ADDR_RECEIVER));
if(rimeaddr_cmp(&hdr->receiver, &rimeaddr_null)) {
is_broadcast = 1;
}
rimebuf_compact();
t0 = RTIMER_NOW();
@ -308,9 +312,10 @@ send_packet(void)
/* Send a train of strobes until the receiver answers with an ACK. */
/* Turn on the radio to listen for the strobe ACK. XXX for
broadcasts, don't turn radio on at all. */
/* Turn on the radio to listen for the strobe ACK. */
if(!is_broadcast) {
on();
}
watchdog_stop();
got_ack = 0;
@ -377,6 +382,7 @@ send_packet(void)
keep it on() for a while. */
}
/* Send the data packet. */
if(rimeaddr_cmp(&hdr->receiver, &rimeaddr_null) || got_ack) {
#if WITH_TIMETABLE
TIMETABLE_TIMESTAMP(xmac_timetable, "send packet");
@ -574,6 +580,7 @@ turn_off(int keep_radio_on)
/*---------------------------------------------------------------------------*/
const struct mac_driver xmac_driver =
{
"X-MAC",
qsend_packet,
read_packet,
set_receive_function,