Apple-2-SW/contiki
1
0
Fork 0
mirror of https://github.com/oliverschmidt/contiki.git synced 2024-08-06 20:28:57 +00:00
Code Issues Projects Releases Wiki Activity

The radio driver now takes care of adjusting for the transmission time

Browse Source
This commit is contained in:
adamdunkels 2008-01-08 07:54:16 +00:00
parent 88a010acdc
commit 1640b11972
1 changed files with 16 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
core/sys/timesynch.c
View File

@ -34,7 +34,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: timesynch.c,v 1.4 2007/12/23 14:57:11 oliverschmidt Exp $
* $Id: timesynch.c,v 1.5 2008/01/08 07:54:16 adamdunkels Exp $
*/
/**
@ -107,25 +107,36 @@ read_packet(void)
len = mac->read();
if(len == 0) {
return 0;
}
/* We check the authority level of the sender of the incoming
packet. If the sending node has a lower authority level than we
have, we synchronize to the time of the sending node and set our
own authority level to be one more than the sending node. */
if(simple_cc2420_authority_level_of_sender < authority_level) {
adjust_offset(simple_cc2420_time_of_departure +
simple_cc2420_time_for_transmission,
adjust_offset(simple_cc2420_time_of_departure,
simple_cc2420_time_of_arrival);
if(simple_cc2420_authority_level_of_sender + 1 != authority_level) {
authority_level = simple_cc2420_authority_level_of_sender + 1;
}
/* XXX the authority level should be increased over time except
for the sink node. */
}
return len;
}
/*---------------------------------------------------------------------------*/
#if 0
static void
periodic_authority_increase(void *ptr)
{
/* XXX the authority level should be increased over time except
for the sink node (which has authority 0). */
}
#endif
/*---------------------------------------------------------------------------*/
static void
set_receive_function(void (* recv)(const struct mac_driver *))
{