e826ccd3b9
add NULLRDC_CONF_802154_AUTOACK_HW for radios that only pass-up NOACK
...
status but not the actual ack packet.
2011-02-23 15:19:44 -08:00
a8f9119ace
pass up a RADIO_NOACK to the MAC layer.
2011-02-23 15:19:43 -08:00
733aaa546f
Made the number of MAC sequence numbers to remember configurable; fixed bug with power attribution to the idle state.
2011-02-21 14:11:32 +01:00
24af4888bc
Made the number of MAC sequence numbers to remember configurable
2011-02-21 14:11:17 +01:00
5cb49e8b07
Several compiler warning fixes:
...
* msp430: fix "implicit declaration of function" warnings in clock.c, by including watchdog.h;
* sky: fix a couple pointer target signedness warnings;
* core: fix several signed/unsigned comparison warnings;
* framer-802154: "const static" -> "static const" to fix compiler warnings;
* core: comment or remove unused variables and function definitions.
Signed-off-by: Lionel Debroux <lionel_debroux@yahoo.fr>
Signed-off-by: Mariano Alvira <mar@devl.org>
2011-02-20 19:28:14 -05:00
46348d9013
Added the low-power streaming mode where frequent channel checks are performed when streaming is on. Enabling this will (by setting WITH_STREAMING to 1), however, significantly slow down Cooja/MSPsim simulations.
2011-02-08 21:57:46 +01:00
09c223f549
Updated Contiki X-MAC to use hardware acks, which allows for tighter timing and results in a lower duty cycle. Hardware acks also make X-MAC more robust against packet losses, as there is a direct way for the CSMA layer to detect loss of data packets. Before, Contiki X-MAC only detected loss of strobes.
2011-01-25 14:31:09 +00:00
d51e99a3dd
Updated streaming mode to use only about 20% radio. Made guard time more conservative due to problem report by Ricklef Wohlers.
2011-01-25 14:29:46 +00:00
fa524fabd7
Bugfix: q->buf was not tested for NULL, as it should be. Fix by Simon Duquennoy.
2011-01-25 14:24:38 +00:00
808c21fbfa
Bugfix: default should be 3 MAC-level retransmissions if collissions or loss occurs
2011-01-18 16:03:57 +00:00
affba785b5
Enabled phase-lock only for channel check rates of 32 Hz or lower
2011-01-18 16:03:19 +00:00
26e3b6fdc0
Bugfix by Simon Duquennoy: don't transmit packet until previous packet has been sent by the RDC layer.
2011-01-13 19:06:22 +00:00
a0960154ba
Cleaned up parts of the code; added comments
2011-01-09 21:07:01 +00:00
322d835fee
Fix avr-gcc compiler warnings
2010-12-18 22:12:53 +00:00
4a89cc9db3
Rework of the new CSMA in-order code that fixes a number of smalllish bugs in the in-order code.
2010-12-16 22:44:02 +00:00
79f2c25dae
Rework of the phase-lock optimization mechanism. There were several bugs in the existing code, such as the phase-lock would lose synchronization when a packet was lost.
2010-12-16 22:43:07 +00:00
952dfc9384
Rework of the CSMA layer: instead of using one timer per packet, the module now uses one central timer and a queue of outgoing packets. This helps to keep packets in order, which is extremely useful for TCP transfers, and reduces the amount of congestion since consecutive packets now are spaced in time if there is a collision. Based on the observations and ideas of Simon Duquennoy.
2010-12-14 07:57:14 +00:00
af21afa750
Make sure that the cycle timing is exact
2010-12-10 13:36:06 +00:00
c19a967973
Bugfix: with the recent bugfixes, it was no longer possible to turn duty cycling back on after it had been turned off
2010-12-07 23:12:54 +00:00
4c9793f428
Let ContikiMAC remember the state that the radio should have when duty cycling is turned off. This fixes a bug in which the radio was turned on after sending, even when NETSTACK_RDC.off(0) was enabled.
2010-12-06 09:08:22 +00:00
e54d7d6f9c
Fix compiler warnings
2010-12-02 15:55:17 +00:00
6d556d5c13
Fixed bug with link-layer ACKs. Refactored the ACK reception code.
2010-11-25 08:44:34 +00:00
3bd78893e5
Renamed nullrdc to nullrdc-noframer and nullrdc-framer to nullrdc.
...
nullrdc (previously nullrdc-framer) is now a RDC implementation that
does not do any radio duty cycling but supports link layer addresses
and frame format via framer (for example 802.15.4). nullrdc can now be
used in the same way as contikimac, xmac, etc.
nullrdc-noframer (previously nullrdc) is a null RDC implementation
that does not do any radio duty cycling, does not add any header of its
own to the packets, and does not support link layer addresses.
2010-11-23 18:11:00 +00:00
05d78522d3
Added MAC-layer duplicate message suppression when using 802.15.4 auto ack
2010-11-12 12:53:16 +00:00
b7df18a96a
Turned off streaming by default to save code space; made guard time a little more conservative
2010-11-02 11:00:08 +00:00
8fa7bf6c31
Always restore the queuebuf to the packetbuf before calling the upper layers. Reduce the waiting time between successive MAC layer retransmissions.
2010-10-24 21:07:00 +00:00
73f5535754
Made the guard time slightly more conservative - found an occasion where this was needed
2010-10-24 21:06:17 +00:00
9cb830ed37
Timing bugfix in the waiting period between channel samples to check if the coast is clear before sending a packet.
2010-10-20 22:25:24 +00:00
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
e2b4956a7f
Bug fix: release the packet and notify the sender if RDC returned an error
2010-10-14 19:08:39 +00:00
4f3fc1c404
fixed xmac to use new channel check define name
2010-10-03 22:46:53 +00:00
ceebd7020a
Bugfix: the return value sometimes was wrong when a collision was detected.
2010-10-03 20:39:24 +00:00
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
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
12479c32bc
Fix compiler warnings
2010-08-01 21:18:07 +00:00
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
7647cbd8aa
Use the list_item_next() API
2010-06-15 19:22:25 +00:00
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
951fd78f6c
ctimer moved from net/rime to sys/
2010-06-14 18:58:45 +00:00
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
8d1680fed5
Filter duplicate packets
2010-06-14 06:52:41 +00:00
ac9b862cd0
Added configurable support for 802.15.4 autoack
2010-05-26 14:12:33 +00:00
b8a3a4109e
Adjusted the code so as to remove compilation warnings.
2010-04-30 22:18:12 +00:00
0859d4b95f
Avoid turning off the radio in the middle of a packet reception
2010-04-30 07:32:39 +00:00
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
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
12b6f35ce7
PRINTF()ed debugging output
2010-04-27 12:56:35 +00:00
85d6f6c514
removed unused variable
2010-04-26 22:41:50 +00:00
b26f45a35b
code cleanup
2010-04-26 17:55:11 +00:00
d761b6e89a
Added MAC header to handle padding
2010-04-26 17:46:21 +00:00
Mariano Alvira
Adam Dunkels
Lionel Debroux
adamdunkels
dak664
nifi
joxe
nvt-se
fros4943