Commit graph

25 commits

Author SHA1 Message Date
adamdunkels e34eb54960 A work-in-progress rework of the Contiki MAC and radio layers. The
main ideas are:

* Separates the Contiki low-layer network stack into four layers:
  network (e.g. sicslowpan / rime), Medium Access Control MAC
  (e.g. CSMA), Radio Duty Cycling RDC (e.g. ContikiMAC, X-MAC), and
  radio (e.g. cc2420).
* Introduces a new way to configure the network stack. Four #defines
  that specify what mechanism/protocol/driver to use at the four
  layers: NETSTACK_CONF_NETWORK, NETSTACK_CONF_MAC, NETSTACK_CONF_RDC,
  NETSTACK_CONF_RADIO.
* Adds a callback mechanism to inform the MAC and network layers about
  the fate of a transmitted packet: if the packet was not possible to
  transmit, the cause of the failure is reported, and if the packets
  was successfully transmitted, the number of tries before it was
  finally transmitted is reported.
* NULL-protocols at both the MAC and RDC layers: nullmac and nullrdc,
  which can be used when MAC and RDC functionality is not needed.
* Extends the radio API with three new functions that enable more
  efficient radio duty cycling protocols: channel check, pending
  packet, and receiving packet.
* New initialization mechanism, which takes advantage of the NETSTACK
  #defines.
2010-02-18 21:48:39 +00:00
adamdunkels d7b7b05d0e Moved the neigbor_init() call to the collect module, since it is the only one that currently uses it 2010-02-03 20:38:33 +00:00
adamdunkels 71ffde578e Moved route_init() into mesh instead of the generic rime initialiation 2010-01-25 13:54:26 +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
adamdunkels 65eb5fd4e8 Renamed the rimebuf module to packetbuf to signal that the module is used outside of a pure Rime context (e.g., the sicslowpan code uses it). 2009-03-12 21:58:20 +00:00
adamdunkels aa2f7a3399 Made polite announcement times configurable, added missing right-brace 2009-03-01 10:43:57 +00:00
adamdunkels 3adf8e5807 Call output packet sniffers after the MAC has sent the packet 2009-03-01 10:29:50 +00:00
adamdunkels 6c95bd895a Added default initialization of polite announcements. Not sure where the best place for this is, but this at least allow us to start experimenting with this. 2009-02-09 22:05:33 +00:00
adamdunkels 0de445e035 Initialize the announcement module 2009-02-09 21:08:12 +00:00
adamdunkels 412facb831 This is an initial commit of an implementation of the Chameleon
architecture for the Rime stack for Contiki. The Chameleon
architecture separates the header processing from the Rime protocol
logic. Instead of having each protocol create its own part of the
packet header, protocols use packet attributes. Before sending a
packet, a special Chameleon header processing module creates a packet
header from the packet attributes. The same Chameleon module parses
incoming packets and creates packet attributes from the header.

The details are in our SenSys 2007 paper:

Adam Dunkels, Fredrik Osterlind, Zhitao He. An Adaptive Communication
Architecture for Wireless Sensor Networks. In Proceedings of the Fifth
ACM Conference on Networked Embedded Sensor Systems (SenSys 2007),
Sydney, Australia, November 2007.

http://www.sics.se/~adam/dunkels07adaptive.pdf

This is a rewrite of the code that was developed for the paper.
2008-02-25 02:14:34 +00:00
adamdunkels 042180c13f Rewrote the sniffer code to use a list, which makes it possible to add any number of sniffers. Sniffers now can be both for incoming and outoing packets. 2008-01-14 09:42:00 +00:00
adamdunkels 88a010acdc Added a simple sniffer callback, which currently is a hack - a better solution would be a list of sniffers for both outgoing and incoming packets, but this will do for now. 2008-01-08 07:53:02 +00:00
adamdunkels 442516356a Expose the Rime MAC driver so that applications can use it - a bit of a hack, but it works for now 2007-12-05 13:21:58 +00:00
nifi a6d827fa1f moved initialization of ctimer to allow MAC layer to use ctimers 2007-11-15 13:07:42 +00:00
nifi 1abf2c4c16 fixed compiler warning 2007-09-26 11:34:49 +00:00
adamdunkels 52eb372890 Modified to use the new MAC layer API 2007-05-25 08:06:44 +00:00
adamdunkels 525b37ca7a Added Rime statistics. 2007-05-22 20:56:10 +00:00
adamdunkels 940da856de Bugfixes, updates 2007-05-15 08:09:21 +00:00
adamdunkels 0650a014b5 Documentation updates 2007-03-31 18:31:27 +00:00
adamdunkels 2caf271d58 Removed unused node-id,.h 2007-03-22 23:57:19 +00:00
adamdunkels 1f91695771 Added route initializaion 2007-03-22 18:54:45 +00:00
adamdunkels b377a83730 Removed automatic setting of Rime node address 2007-03-21 23:22:02 +00:00
adamdunkels e4e57fca96 Renamed input function to rime_input() and the output function to rime_driver_send() 2007-03-15 21:24:11 +00:00
adamdunkels ab0d556353 Added a new type for all addresses in Rime: rimeaddr_t. This is an abstract type that currently is defined as a 16-bit quantity but that most likely will be redefined in the future 2007-03-15 19:43:07 +00:00
adamdunkels 2d7aab3ffe Initial import of the experimental Rime code into the SourceForge CVS. 2007-02-28 16:38:51 +00:00