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296 Commits

Author SHA1 Message Date
David Kopf
745f071c98 Eliminate unused variable warnings. Dummy test of PT_YIELD_FLAG does not change program size. 2012-02-21 11:23:54 -05:00
David Kopf
24d58edf15 Adjust cycle starts when RTIMER_ARCH_SECOND not a power of two. 2012-01-10 12:48:39 -05:00
Joakim Eriksson
65163a9b57 Changed FRAMER to return negative values for error to allow 0 size headers. 2012-01-01 09:10:56 +01:00
Nicolas Tsiftes
d0ebeb409e Merge remote-tracking branch 'sf/master' into rpl-patch 
Conflicts:
	core/net/tcpip.c
 2011-12-08 15:26:11 +01:00
Adam Dunkels
1e57ddb6c7 Disable phase shift correction by default 2011-12-08 14:04:01 +01:00
Adam Dunkels
0a428c9489 style fix; added fas check for cycle_time being a power of two or not. 2011-12-05 16:28:04 +01:00
David Kopf
74aa63de43 Add optional correction for phase drift of receiver. 2011-12-01 10:02:37 -05:00
Nicolas Tsiftes
0e32956a63 Merge remote-tracking branch 'sf/master' into rpl-patch 2011-11-21 14:59:31 +01:00
Niclas Finne
63e40d195e Restore packetbuf before mac callback (earlier commit was accidental reverted) 2011-11-15 16:59:12 +01:00
David Kopf
8e47694597 Add RDC_CONF_HARDWARE_CSMA, RDC_CONF_HARDWARE_ACK, RDC_CONF_MCU_SLEEP, CONTIKIMAC_CONF_SHORTEST_PACKET_SIZE for use with hardware having those modes. 
Default behaviour should be unchanged.
 2011-11-14 12:02:47 -05:00
Niclas Finne
b01cbb996d Fixed to restore packetbuf before mac callback 2011-10-21 17:52:31 +02:00
David Kopf
8ebd7a65a4 Add missing includes, remove unimplemented function declaration. 2011-10-13 11:23:53 -04:00
simonduq
a2073db715 Removed ContikiMAC burst dependency to phase optimization 2011-10-04 10:29:40 +02:00
Joakim Eriksson
e0ae036a69 added static on the list send functions to get less compiler errors with IAR compiler 2011-10-03 15:17:30 +02:00
simonduq
222f9bd3af Include string.h 2011-09-29 15:07:00 +02:00
simonduq
dd8576830e Added bursts support in CSMA/ContikiMAC, and CFS-swapping in 
queuebuf. Exemplified in examples/udp-stream.
 2011-09-27 16:47:03 +02:00
Adam Dunkels
bd951031ef Cleanup of the ContikiMAC code; removed the old an unused announcement code 2011-09-02 14:06:29 +02:00
Adam Dunkels
61ef9b6fc3 Cleanup of the ContikiMAC code; removed the old an unused announcement code 2011-09-02 14:06:27 +02:00
Adam Dunkels
3cb42ceb10 Made the ContikiMAC header configurable from contiki-conf.h 2011-09-02 13:37:46 +02:00
Adam Dunkels
d6508cf3c0 Made the number of phase neighbors configurable 2011-08-31 20:54:21 +02:00
Vincent Brillault
b0907f0344 Cleaning old .h : 
- Delete unimplemented function and unused structures
- Remove misleading configuration options
- Transfer some comments from 6lowmac to framer-802154
(doc/uip6-doc.txt should be cleaned as well)
 2011-07-11 13:20:30 +02:00
Niclas Finne
28b0479c06 Added optional address filtering 2011-06-15 17:51:57 +02:00
Niclas Finne
e8a96dc202 Bug fix: update packet attributes in queued packets in CSMA instead of doing a full packetbuf copy after transmissions. The lower layers often add their own headers to packetbuf. 2011-06-15 16:10:07 +02:00
dak664
580efaa412 Fix compiler warning for unused variable 2011-05-18 11:22:25 -04:00
Salvatore Pitrulli
4fb433ac1f 'if' statement replaced by a preprocessor directive. 2011-05-12 21:50:47 +02:00
Adam Dunkels
74f1754d88 Bugfix: energy consumption for retransmissions was miscounted 2011-04-13 14:10:39 +02:00
Adam Dunkels
af4ce9ba9e Bugfix: idle power consumption was sometimes misestimated for transmissions, when a duty cycle rtimer fired in the middle of a transmission 2011-04-13 14:10:02 +02:00
Mariano Alvira
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
Mariano Alvira
a8f9119ace pass up a RADIO_NOACK to the MAC layer. 2011-02-23 15:19:43 -08:00
Adam Dunkels
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
Adam Dunkels
24af4888bc Made the number of MAC sequence numbers to remember configurable 2011-02-21 14:11:17 +01:00
Lionel Debroux
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
Adam Dunkels
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
adamdunkels
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
adamdunkels
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
adamdunkels
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
adamdunkels
808c21fbfa Bugfix: default should be 3 MAC-level retransmissions if collissions or loss occurs 2011-01-18 16:03:57 +00:00
adamdunkels
affba785b5 Enabled phase-lock only for channel check rates of 32 Hz or lower 2011-01-18 16:03:19 +00:00
adamdunkels
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
adamdunkels
a0960154ba Cleaned up parts of the code; added comments 2011-01-09 21:07:01 +00:00
dak664
322d835fee Fix avr-gcc compiler warnings 2010-12-18 22:12:53 +00:00
adamdunkels
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
adamdunkels
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
adamdunkels
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
adamdunkels
af21afa750 Make sure that the cycle timing is exact 2010-12-10 13:36:06 +00:00
adamdunkels
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
adamdunkels
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
dak664
e54d7d6f9c Fix compiler warnings 2010-12-02 15:55:17 +00:00
adamdunkels
6d556d5c13 Fixed bug with link-layer ACKs. Refactored the ACK reception code. 2010-11-25 08:44:34 +00:00
nifi
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
nifi
05d78522d3 Added MAC-layer duplicate message suppression when using 802.15.4 auto ack 2010-11-12 12:53:16 +00:00
adamdunkels
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
adamdunkels
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
adamdunkels
73f5535754 Made the guard time slightly more conservative - found an occasion where this was needed 2010-10-24 21:06:17 +00:00
adamdunkels
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
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