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613 commits

Author SHA1 Message Date
adamdunkels 1a13d25d33 Revised version of the X-MAC implementation that uses a ctimer instead 
of an rtimer for the periodic radio duty cycling. The benefit of this
implementation is that it leaves an rtimer free for user tasks. The
drawback is a slightly higher idle power consumption. This new version
is based on the current rtimer-based X-MAC.
 2010-01-31 18:44:23 +00:00
adamdunkels e4168db633 Bugfix: deallocate queuebuf only if there was no collision 2010-01-31 13:55:36 +00:00
adamdunkels 388c5d4244 Made the sicslowpan MAC layer reachable from outside modules 2010-01-28 13:50:51 +00:00
adamdunkels 2ae7ed827c Increase the default X-MAC channel check rate to 4 Hz instead of 2 Hz 2010-01-28 13:40:47 +00:00
adamdunkels f94d6df6f0 Bugfix: copy the originator address from the packetbuf into a local variable to avoid it being overwritten 2010-01-27 08:12:56 +00:00
adamdunkels 8430dab039 Typecast to fix nightly build problem 2010-01-27 07:36:31 +00:00
adamdunkels 9e5823f060 Made retransmission timeout configurable 2010-01-26 10:19:26 +00:00
adamdunkels b728c0927c Made number of duplicate announcements configurable 2010-01-26 10:18:55 +00:00
adamdunkels cc3f609eaa Bugfix for alignment issue. Added mechanism that allows five duplicate announcements before suppressing one's own. 2010-01-25 13:55:17 +00:00
adamdunkels 71ffde578e Moved route_init() into mesh instead of the generic rime initialiation 2010-01-25 13:54:26 +00:00
adamdunkels 423e37f426 Added parameter to ipolite that specifies how many dups that are acceptable, before suppressing one's own packet 2010-01-25 13:54:06 +00:00
adamdunkels 0b58ca3b22 Bugfix: split full size TCP segments if they match the MSS definition, not only the buffer size definition 2010-01-25 13:53:15 +00:00
adamdunkels 7615a6cf47 Bugfix by Henrik Mäkitaavola: check that ICMP6 process is defined before invoking it 2010-01-25 13:37:05 +00:00
adamdunkels 4f3e8d565c Added a simple CSMA (Carrier Sense Multiple Access) mechanism that 
works on top of an underlying duty cycling mechanism. The CSMA layer
retransmits packets that could not be sent because of a collision was
detected.
 2010-01-25 11:46:44 +00:00
adamdunkels 7ad93e5d18 Added a field to the struct mac interface: 
channel_check_interval(). This function returns the interval by which
the duty cycling mechanism checks the radio channel for activity. It
is used by higher layer mechanisms to determine suitable timeouts for
retransmissions.
 2010-01-25 11:43:32 +00:00
fros4943 26e0bab11a bugfix: alignment problem caused by previous bugfix 2010-01-21 11:39:35 +00:00
fros4943 3db4f36c3e removed compiler specific attribute 2010-01-20 09:58:16 +00:00
adamdunkels c962f49516 Alignment bugfix 2010-01-18 21:27:21 +00:00
adamdunkels 743e93e650 Do not remove encounters - there is no need to, as they are only an optimization 2010-01-14 20:14:03 +00:00
nvt-se a03e899c27 Signal the result of transmissions attempts made in the mesh module. Patch from Moritz Struebe 2009-12-18 14:57:15 +00:00
nifi 7b2b93e6e6 clear transmission flag if send failed 2009-12-18 14:49:42 +00:00
adamdunkels f4e6758b22 Use RTIMER_NOW() instead of rtimer_arch_now() 2009-12-09 18:08:26 +00:00
adamdunkels 2f105e933a Variable xmac_is_on was used both in interrupt and non-interrupt contexts and needs to be volatile 2009-12-06 23:29:38 +00:00
adamdunkels 53457eb1f0 Fixed compilation warning 2009-12-06 17:10:54 +00:00
adamdunkels 8bcc838d8a Bugfix: don't set the 'we are sending' flag until we are actually sending 2009-12-06 17:05:45 +00:00
adamdunkels 6897270289 Bugfix to the Contiki LPP encounter timing code: encounters are now 
properly timed.
 2009-12-06 13:18:32 +00:00
adamdunkels 822149f943 Significant improvements to the Contiki X-MAC: 
* the code is simplified, particularly the duty cycling logic
* old unused code has been removed
* Contiki X-MAC now listens before sending a strobe to avoid MAC-level
  collisions
* broadcasts are sent directly, without strobes, reducing the power
  consumption of receivers
* turn off radio for 1 ms between sending a strobe and expecting the
  strobe ack
 2009-12-06 13:16:59 +00:00
adamdunkels cef2e65c9b Added an error type for signalling a MAC-layer collision 2009-12-05 21:49:51 +00:00
adamdunkels 4a1a823a49 Code style fix 2009-12-05 13:29:41 +00:00
fros4943 a1b4597b95 fixed announcement compilation error 2009-11-27 14:27:50 +00:00
adamdunkels aeefa75304 Fixed alignment problems in announcement packet creation 2009-11-27 12:49:27 +00:00
nvt-se 116771adbc made the route cache timeout configurable 2009-11-20 14:35:58 +00:00
nifi 1f2c226d8e * Added ctimer_restart(). Patch by Moritz Struebe. 
* Added ctimer_expired().
 2009-11-19 18:32:05 +00:00
nifi bb0ffe0478 moved rime initialization into rime router so it is easier to switch IPv6 routing module 2009-11-18 13:51:55 +00:00
fros4943 0034fd7bca generic return values for sent packet 2009-11-13 10:09:02 +00:00
fros4943 9b20f11cd8 chameleon returns 1 only on successful rime_output() 2009-11-13 09:14:52 +00:00
fros4943 583dd11c55 rime_output() now returns RIME_OK or RIME_ERR depending on the MAC return value. 
this patch may affect Rime sniffers running on top of MAC protocols that do not yet return generic MAC return values
 2009-11-13 09:10:24 +00:00
fros4943 26bb5ecd21 added radio and MAC generic return values to allow applications finding out whether the packet was transmitted 2009-11-13 08:59:22 +00:00
joxe 5b0b36c39e accept messages to all routers if UIP_CONF_ROUTER is set. 2009-11-12 14:05:42 +00:00
adamdunkels 60a3fc0cae Fixed alignment issue 2009-11-09 08:22:40 +00:00
adamdunkels 56218aba3b Made rimeaddr_t pointers const where they should be. 2009-11-08 19:40:16 +00:00
adamdunkels 70fc23ac7e Enable stream mode by default, remove LED debug mode 2009-11-04 16:02:45 +00:00
adamdunkels 5aab2eb77d A simple addition with significant performance implications: 
sicslowpan tags TCP packets with the PACKETBUF_ATTR_PACKET_TYPE_STREAM
flag, which makes the underlying power-saving MAC layer keep the radio
on for some time after transmitting the packet. This allows reply
packets to be processed directly, significantly increasing TCP latency
and throughput.
 2009-11-02 11:58:56 +00:00
adamdunkels c7a91ad4a2 Bugfix: UIP_TCP_BUF -> BUF 2009-10-27 23:09:58 +00:00
adamdunkels 631af06c7c Bugfix: Active TCP connections in uIP are made by first setting up the 
TCP connection state, then poll uIP to send out the first SYN. Until
now, however, the SYN was not sent as part of the poll, but at the
first retransmission. This is now fixed.
 2009-10-27 22:34:08 +00:00
zhitao 1913e1a936 prevent neighbor ETX from wrap-over 2009-10-22 13:11:20 +00:00
nifi df32fde58c Made max number of neighbors configurable 2009-10-21 21:25:10 +00:00
adamdunkels 91579fbaab Removed debug strings to save ROM 2009-10-20 08:06:43 +00:00
nifi 223fa1c8e5 added missing include 2009-10-20 07:42:03 +00:00
adamdunkels a5ea7ef966 Increased default number of queue buffers 2009-10-19 21:28:59 +00:00