Commit Graph

191 Commits

Author SHA1 Message Date
adamdunkels
3ffcff0656 Added mechanisms for explicit de-synchronization of synchronized neighbors. Added link-layer ACKs. Fixed bugs with MAC-layer interaction. Now seems to work somewhat (didn't work at all before, in some cases), but there are still problems with packet loss. 2010-10-20 15:23:43 +00:00
nifi
e2b4956a7f Bug fix: release the packet and notify the sender if RDC returned an error 2010-10-14 19:08:39 +00:00
joxe
4f3fc1c404 fixed xmac to use new channel check define name 2010-10-03 22:46:53 +00:00
adamdunkels
ceebd7020a Bugfix: the return value sometimes was wrong when a collision was detected. 2010-10-03 20:39:24 +00:00
adamdunkels
ae88ed04f1 Moved the definition of the channel check rate used by the radio duty
cycling layer. This definition was previously held in net/mac/mac.h,
with the name MAC_CONF_CHANNEL_CHECK_RATE. But since the rate is used
by the radio duty cycling layer, it makes more sense to change its
name to reflect this. Also, the configuration option should be tied to
the netstack configuration instead.

So the new configuration option is called
NETSTACK_CONF_RDC_CHANNEL_CHECK_RATE.
2010-10-03 20:37:32 +00:00
adamdunkels
eb58968459 Added a timer to each phase structure that keeps track of for how long
a particular receiver has not ACKed packets. After some time
(currently 16 seconds), the sender will begin sending full strobe
periods again.
2010-09-13 13:39:05 +00:00
dak664
12479c32bc Fix compiler warnings 2010-08-01 21:18:07 +00:00
nifi
21828ad782 Changed the retransmission time to be based on the configured MAC channel check rate when the RDC has no channel check interval. 2010-06-16 10:08:30 +00:00
adamdunkels
7647cbd8aa Use the list_item_next() API 2010-06-15 19:22:25 +00:00
adamdunkels
3fa8ffda1a Moved the modules packetbuf, queuebuf, and packetqueue from net/rime to net/, since they are not Rime-specific 2010-06-14 19:19:16 +00:00
adamdunkels
951fd78f6c ctimer moved from net/rime to sys/ 2010-06-14 18:58:45 +00:00
adamdunkels
8f8393aadc Moved ctimer.[ch] from their old and illogical location in core/net/rime to a more appropriate place in core/sys 2010-06-14 07:34:36 +00:00
adamdunkels
8d1680fed5 Filter duplicate packets 2010-06-14 06:52:41 +00:00
nifi
ac9b862cd0 Added configurable support for 802.15.4 autoack 2010-05-26 14:12:33 +00:00
nvt-se
b8a3a4109e Adjusted the code so as to remove compilation warnings. 2010-04-30 22:18:12 +00:00
adamdunkels
0859d4b95f Avoid turning off the radio in the middle of a packet reception 2010-04-30 07:32:39 +00:00
adamdunkels
e606c674c2 Rewrote LPP so that it uses 802.15.4 headers. A number of bugfixes with respect to alignment. Avoid turning off the radio in the middle of packet reception. 2010-04-30 07:31:44 +00:00
adamdunkels
3c735fcea4 Added a packetbuf flag that indicates if the link layer acks should be used or not 2010-04-30 07:25:51 +00:00
fros4943
12b6f35ce7 PRINTF()ed debugging output 2010-04-27 12:56:35 +00:00
nifi
85d6f6c514 removed unused variable 2010-04-26 22:41:50 +00:00
nifi
b26f45a35b code cleanup 2010-04-26 17:55:11 +00:00
nifi
d761b6e89a Added MAC header to handle padding 2010-04-26 17:46:21 +00:00
nifi
14b1bb9f57 Fixed to only use leds when DEBUG is set 2010-04-20 11:41:16 +00:00
adamdunkels
3670fac618 Bugfix: timing fixed 2010-04-08 18:23:24 +00:00
adamdunkels
91ff8574ad Improved handling of duplicate packets 2010-04-08 09:32:56 +00:00
nvt-se
ac4ba199bc Turn off DEBUG mode by default. 2010-04-06 21:37:54 +00:00
adamdunkels
497111bcc9 Added an optional rate limit for broadcast transmissions 2010-04-06 11:57:43 +00:00
adamdunkels
e06a30fdb0 Added MAC-layer duplicate message suppression, which is very helpful when running with duty cycling turned off 2010-04-05 19:28:07 +00:00
adamdunkels
c68ee6e577 Bugfix: memory from the wrong memb was freed. 2010-04-04 21:02:09 +00:00
adamdunkels
a4c328785a Small timing tweaks 2010-04-04 21:01:24 +00:00
adamdunkels
62039a530d Removed non-existant cooja-debug.h include 2010-04-04 12:31:47 +00:00
adamdunkels
7d6ff0289e Fiddled more with the timing: the phase seems stable now at least. Still bugs left though... 2010-04-04 12:28:29 +00:00
adamdunkels
be117afe04 After a lot of tweaking and twiddling with the timing of the ContikiMAC code and the mechanisms in the CC2420 driver, things seem to work somewhat stable now - knock on wood! 2010-04-04 07:49:30 +00:00
adamdunkels
121ca946e1 Improved phase lock behaviour when neighbor is not duty cycling: senders notify receivers via the 802.15.4 pending bit that they are not duty cycling. Neighbors then will start sending packets immediately and not wait for neighbors' phase. Tweaking of ContikiMAC timers to make it more reliable. 2010-04-03 13:28:30 +00:00
joxe
6ae86d001d made number of phase neighbors configurable 2010-04-01 17:17:36 +00:00
adamdunkels
add426de4b Bugfixed stream mode: node listens 100% for 0.5 seconds in stream mode. Naming change: is_listening changed is_snooping. 2010-04-01 10:02:04 +00:00
adamdunkels
b43f7830b3 Fine-tuned the timing and phase lock optimization 2010-03-31 20:27:15 +00:00
adamdunkels
877eb2fbe9 Fiddled with the timing 2010-03-31 11:54:38 +00:00
adamdunkels
bcfa80102d Had previously not included the waiting time that the CC2420 introduces when sending a packet. Also increased the smallest packet size, just to be on the safe side. 2010-03-30 23:01:32 +00:00
adamdunkels
226abb8ec3 Removed non-existant include file 2010-03-29 22:10:03 +00:00
adamdunkels
9c58768b59 Extend packet size after creating 802.15.4 header; prepare radio chip with packet before waiting for neighbor phase to make phase wait time deterministic 2010-03-29 21:51:36 +00:00
adamdunkels
b4b7e942b6 Back off a guard time for every non-ack packet 2010-03-29 21:50:01 +00:00
nifi
9508d2c4d7 * Added configurable default number of transmissions for CSMA to use when not specified using packetbuf attributes (CSMA_CONF_MAX_MAC_TRANSMISSIONS).
* Renamed packetbuf attribute PACKETBUF_ATTR_MAX_MAC_REXMIT to PACKETBUF_ATTR_MAX_MAC_TRANSMISSIONS where value 0 (attribute not set) means that default number of transmissions should be used.
2010-03-26 12:29:29 +00:00
adamdunkels
49009e9cbd Extend the length of announcement packets if they are too short 2010-03-19 13:24:58 +00:00
adamdunkels
115b3a7c5c Minor timing bugfix: the time between channel checks should not include the time required for the channel check itself 2010-03-17 18:24:06 +00:00
adamdunkels
efeb9944fa Increase the required non-activity periods before turning off the radio; remove the strict phase requirement (which messes up things with low-power streaming) 2010-03-17 16:35:52 +00:00
adamdunkels
9be1a65211 Don't set the RELIABLE flag on incoming packets with the ack requested flag set, since it is set on most packets even if they aren't reliable 2010-03-16 18:11:58 +00:00
adamdunkels
b1feac5a00 Bugfixes in low-power streaming mode, and re-added support for announcements. These now use the low-power streaming mode so that active listening for announcments have a radio duty cycle of 16% rather than 100% 2010-03-16 18:11:13 +00:00
adamdunkels
7bab9316da Two major changes:
* Low-power streaming. Experimental support for a low-power mode which
  allows rapid exchange of packets with a 16% duty cycle. Does not
  seem to function correctly yet though.

* Phase locking. When the phase of a neighbor has been detected, the
  sender assumes that the neighbor will keeps it phase and does not
  send more strobes than necessary to hit the receiver's channel
  check - even if the receiver does not acknowledge the reception of
  the strobes when it should have been awake. Instead, the sender
  stops strobing and tries again at a later time.
2010-03-14 22:59:23 +00:00
oliverschmidt
def540e6c0 Avoid newlines in macro expansions as cc65 doesn't support them between the macro name and the open parenthesis of the arguments.
There were btw other even longer lines with expansions of the same macro already present.
2010-03-14 12:13:54 +00:00