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A work-in-progress rework of the Contiki MAC and radio layers. The

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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.
This commit is contained in:
adamdunkels 2010-02-18 21:48:39 +00:00
parent 1817acae15
commit e34eb54960
29 changed files with 1176 additions and 768 deletions
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8
core/net/rime/chameleon.c
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* $Id: chameleon.c,v 1.7 2009/11/13 09:14:52 fros4943 Exp $
* $Id: chameleon.c,v 1.8 2010/02/18 21:48:39 adamdunkels Exp $
*/
/**
@ -141,10 +141,8 @@ chameleon_output(struct channel *c)
printhdr(packetbuf_hdrptr(), packetbuf_hdrlen());
#endif /* DEBUG */
if(ret) {
if (rime_output() == RIME_OK) {
return 1;
}
return 0;
rime_output();
return 1;
}
}
return 0;