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Author SHA1 Message Date
Billy Kozak 7b27ad64ca Replaced function pointer cast in contikimac 
Replaced a cast of the funciton pointer to powercycle with a
wrapper calling powercycle which has the correct signature.

The previous implementation was an instance of undefined behaviour
according to the C standard.
 2015-09-01 10:16:43 -06:00
Atis Elsts b75f673801 RDC phase optimization: correct the behavior in case of memory allocation failure 
phase_wait did not check whether queuebuf_new_from_packetbuf() returns NULL. This potentially causes send_packet to behave incorrectly; the proper packet would not be sent out (because queuebuf_to_packetbuf(NULL) is a no-op). Instead, whatever has been left in the packet buffer by its previous user will be sent out.
 2015-08-14 16:37:00 +02:00
Simon Duquennoy dc4de9d001 Merge pull request #1161 from g-oikonomou/contrib/contikimac-sw-ack 
Implement TX of S/W ACKs with ContikiMAC
 2015-08-04 13:15:03 +02:00
Arthur Fabre 8739113308 Fix warnings in ContikiMAC 
../..//core/net/mac/contikimac/contikimac.c:503:11: warning: variable
‘seqno’ set but not used [-Wunused-but-set-variable]
../..//core/net/mac/contikimac/contikimac.c:496:7: warning: variable
‘len’ set but not used [-Wunused-but-set-variable]

Both of these variables are only used if RDC_CONF_HARDWARE_ACK is not
true.
Their definitions and use have been moved into #ifdef guards so they do
not appear if RDC_CONF_HARDWARE_ACK is set.
 2015-07-16 13:49:31 +01:00
George Oikonomou 315f6fe535 Implement TX of S/W ACKs with ContikiMAC 2015-07-12 00:07:33 +01:00
George Oikonomou 503a992887 Make ContikiMAC more configurable 
Allow the project / platform to provide values for CCA_SLEEP_TIME and LISTEN_TIME_AFTER_PACKET_DETECTED.

This is useful for sub-ghz operation.

This has been shamelessly stolen from the [Mountain Sensing project](https://github.com/feshie/contiki)

@heliosfa @kmartinez
 2015-07-11 23:55:44 +01:00
Benoît Thébaudeau 66acf74612 cc2538: examples: Fix build warnings 
Toolchain used:
arm-none-eabi-gcc (GNU Tools for ARM Embedded Processors) 4.9.3 20150303
(release) [ARM/embedded-4_9-branch revision 221220]

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
 2015-06-02 01:38:11 +02:00
Moritz 'Morty' Strübe 0dab6926b3 Move MAX, MIN and ABS to sys/cc.h 2015-05-18 08:53:17 +02:00
George Oikonomou 11a5e0a49a Merge pull request #1051 from simonduq/fix-warning 
Fixed a number of compiler warnings
 2015-05-13 00:52:40 +01:00
Simon Duquennoy 4a93f5148d Fixed a number of compiler warnings 2015-05-08 09:07:20 +02:00
Simon Duquennoy 333e076b24 Disable PACKETBUF_ATTR_PACKET_TYPE in the non-Rime case by default 2015-05-06 16:36:15 +02:00
Simon Duquennoy 290fc829ea Consistently use PACKETBUF_ATTR_MAC_SEQNO for MAC sequence number, both input and output. Disable PACKETBUF_ATTR_PACKET_ID in the non-Rime case. 2015-05-06 16:34:44 +02:00
Simon Duquennoy bb76bb8beb Remove unused flag SICSLOWPAN_CONF_ACK_ALL. Include packetbuf attribute PACKETBUF_ATTR_RELIABLE only when RIME is compiled. 2015-05-06 16:34:26 +02:00
George Oikonomou dd4f181cde Fix warnings caused by incorrect \defgroup, \addtogroup, \file 2015-02-15 20:11:09 +01:00
Simon Duquennoy bd4233a953 Cleanup packetbuf: use rime attributes and addresses only when rime is enabled. Saves 32 byte per queuebuf in the non-rime case. 2014-12-02 16:54:58 +01:00
Simon Duquennoy a9cc909794 Network layer configuration: replace UIP_CONF_* with NETSTACK_CONF_WITH_* 2014-12-01 21:02:57 +01:00
Nicolas Tsiftes 9b90c378e8 Merge pull request #812 from kkrentz/packetbuf-holds-broadcast 
packetbuf_holds_broadcast()
 2014-11-28 19:15:19 +01:00
kkrentz 6ecbf8af34 ContikiMAC: Retain original copyright 2014-11-25 04:56:09 -08:00
kkrentz 18ee5ce294 ContikiMAC: Added missing length function to contikimac-framer.c 2014-11-25 04:56:09 -08:00
Nicolas Tsiftes 866bb99944 Merge pull request #860 from simonduq/frame802154-align 
frame802154_t: make sure dest_addr and src_addr are aligned
 2014-11-18 08:59:30 +01:00
kkrentz fb00a217f5 packetbuf: Use packetbuf_holds_broadcast() all-over 2014-11-13 09:58:08 -08:00
Enrico Joerns 85b494c16b [doc] Give files a common structure by placing license first (partial) 
Followed by doxyen file and group tags.
This patch is only a first attempt to make provide a clean structure,
many more files require rework, too.
 2014-11-10 23:54:49 +01:00
Enrico Joerns e9b5899eed [core/net/mac] Doxygen: Added frame802154 to net group 2014-11-10 23:53:32 +01:00
Simon Duquennoy 6b7017452b frame802154: move inclusion of linkaddr.h from .h to .c file 2014-11-10 15:43:32 +01:00
Simon Duquennoy df6a435d42 struct frame802154_t: make sure dest_addr and src_addr are aligned 2014-11-10 15:40:24 +01:00
Nicolas Tsiftes 6fb7dd238e Merge pull request #648 from cetic/pr-csma-fixes 
High throughput fixes for csma and sixlowpan
 2014-10-21 12:17:03 +02:00
Laurent Deru 7cbd59df03 Add per neighbor packet throttle 2014-08-13 10:11:02 +02:00
Laurent Deru 91d84a3086 Improve csma debug traces 2014-08-13 10:11:02 +02:00
kkrentz 2cf7d98cad ContikiMAC: Create and parse ContikiMAC header in special framer; Expanded framer interface 
to allow for creating and securing frames in advance; Create and secure frames in advance when sending bursts; Do neither recreate nor resecure frames that come from phase
 2014-08-05 05:07:06 -07:00
kkrentz 515287ef17 llsec: Removed superseded NETSTACK_ENCRYPT, NETSTACK_DECRYPT, and 
NETSTACK_ENCRYPTION_INIT macros
 2014-08-05 05:07:05 -07:00
kkrentz 41c5dbf961 llsec: Disable duplicate detection when the LLSEC driver provides replay protection anyway. 2014-08-05 05:07:05 -07:00
kkrentz eaae9f1100 llsec: Calling NETSTACK_LLSEC.on_frame_created() 2014-08-05 05:04:15 -07:00
kkrentz 8659c97fb0 framer-802154: Support for explicit keys 2014-08-05 05:04:15 -07:00
kkrentz 124dde25f3 framer-802154: Conditional compilation of security-related code 2014-08-05 05:04:14 -07:00
kkrentz fb6d2270ab framer-802154: Simplification of frame802154_create 2014-08-05 05:04:14 -07:00
kkrentz 11495a011c framer-802154: Renamed variable for the sake of consistency 2014-08-05 05:04:14 -07:00
kkrentz 1d324e50d2 framer-802154: Sequence number fix 2014-08-05 05:04:14 -07:00
kkrentz 9dc9e4bd9f framer-802154: Support for setting and accessing the frame type 
attribute
 2014-08-05 05:04:14 -07:00
kkrentz 19c9ef0a95 framer-802154: Support for creating and parsing frames with security headers 2014-08-05 05:04:14 -07:00
kkrentz be22883724 framer-802154: Introduced mnemonic variable 2014-08-05 05:04:14 -07:00
kkrentz c9ad9c04bd framer-802154: Style fixes 2014-08-04 01:09:57 -07:00
kkrentz bb74fc320f llsec: Configuration option for defining a constant LoWPAN-wide security level 2014-08-04 01:09:57 -07:00
kkrentz c396a85364 llsec: Added a layer in between NETSTACK_MAC and NETSTACK_NETWORK for implementing link layer security 2014-08-04 01:09:57 -07:00
Adam Dunkels cff30a394b Merge pull request #635 from nfi/linkaddr-size 
Use LINKADDR_SIZE instead of sizeof(linkaddr_t) to avoid struct padding problems.
 2014-06-11 23:18:27 +02:00
Adam Dunkels eceaf0c59b Merge pull request #631 from nfi/framer-len 
Added function to framer that returns the estimated header length
 2014-06-11 23:17:47 +02:00
Rémy Léone 25c8b0835d Closing doxygen groups 2014-05-30 11:01:20 +02:00
Niclas Finne b1335b08a8 Changed to use LINKADDR_SIZE instead of sizeof() to select between 
short address and long address as some platforms might use padding in
the struct. This fixes #555.
 2014-04-11 17:24:16 +02:00
Niclas Finne 68730566a3 Added method to framer that returns the header length if the framer 
would create a header with the current packet information.

This allows sicslowpan to calculate the max payload size without
consuming a sequence number or clearing/restoring the packet buffer.
 2014-04-11 17:03:23 +02:00
Adam Dunkels 5b1a9f5bc2 Bugfix: when a packet is sent by the RDC layer, we should count the number of transmissions made because a single callback can pertain to multiple transmissions at the RDC layer. 2014-03-24 08:36:18 +01:00
Adam Dunkels 45265249fc Changed the name of the rimeaddr module to linkaddr 2014-01-29 20:12:24 +01:00
Adam Dunkels bddd96d5c8 Removed all module makefiles. Instead, all .c files in a module directory are compiled. 2014-01-26 23:20:46 +01:00
Adam Dunkels 8eace27f9b Moved net/rime.h to net/rime/rime.h 2014-01-26 23:20:45 +01:00
Adam Dunkels 0fe08205e1 Moved the rimeaddr.[ch] code from the core/net/rime module to the core/net module, as it is used not only by rime code 2014-01-26 23:20:36 +01:00
Adam Dunkels 0f255606b0 Turned sicslowmac into a module 2014-01-26 23:20:28 +01:00
Adam Dunkels b78ab6753c Added makefiles to make core/net/mac into a separate module 2014-01-26 23:20:26 +01:00
Adam Dunkels d777ae14e4 Moved cxmac into a separate module 2014-01-26 23:20:26 +01:00
Adam Dunkels 083fe0b594 Moved the contikimac code into a core/net/mac/contikimac module 2014-01-26 23:20:25 +01:00
Adam Dunkels 5f3fe7f7c7 Updated include paths for the moved files under net/ 2014-01-26 23:20:23 +01:00
Martin Heusse 662eb4db14 Fix compilation error when DEBUG enabled in core/net/mac/framer-nullmac.c 2014-01-24 20:23:26 +01:00
Adam Dunkels 0908924f91 Removed the lpp.c code 2013-11-28 15:24:40 +01:00
Adam Dunkels f86aaf7c14 Removed the xmac.c code 2013-11-28 15:24:22 +01:00
Nicolas Tsiftes db4cada4e7 Merge pull request #462 from adamdunkels/push/no-reserved-double-inclusion-defines 
Remove all leading double underscore inclusion #defines
 2013-11-26 14:26:37 -08:00
Benoît Thébaudeau 4deba89f81 rdc: duplicate packets: Keep only the last sequence number for each address 
According to IEEE 802.15.4e (§6.4.3.9), in order to detect duplicate received
MAC-layer frames, only the most recently received frame's sequence number needs
to be stored for each unique device address. Doing so limits the possible false
duplicate packet detections to a single sequence number. This also allows to
keep the last sequence number of more device addresses for the same value of
MAX_SEQNOS.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
 2013-11-25 13:01:11 +01:00
Benoît Thébaudeau 477a4a7178 rdc: duplicate packets: Factor out detection code 
The code detecting duplicate packets in the RDC layer had been copied into most
RDC implementations. Factor it out into a new mac-sequence module in order to
have a single instance of this code.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
 2013-11-25 13:01:11 +01:00
Benoît Thébaudeau 14db3382af csma: Initialize sequence number with random value 
According to IEEE 802.15.4 (§5.1.6.1, §6.4.2), the MAC sequence numbers should
be initialized to random values. This was already the case in
framer-802154.c:create(), but not in csma.c:send_packet(), sometimes causing
false detections of duplicate MAC-layer packets in other devices when a device
was restarted too quickly. This patch decreases the probability of such an
event.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
 2013-11-25 13:01:11 +01:00
Adam Dunkels bb2dcaa057 A massive all-tree automated update of all double inclusion guard #defines that changes from using two underscores as a prefix, which are reserved, to not using two underscores as a prefix 2013-11-24 20:20:11 +01:00
Adam Dunkels bec721d313 Allow payload len to be larger than 256 bytes 2013-11-16 14:22:48 +01:00
Simon Duquennoy 03dcca15cb Implement a truncated exponential backoff for csma 2013-11-14 15:02:36 +01:00
Enrico Joerns 4ba22102fd [core/net/mac] Removed invalid struct member u8 in PRINTADDR 2013-10-15 01:43:26 +02:00
Simon Duquennoy 248301a041 Fix naming issues and includes in uip-ds6-nbr.h 2013-08-19 17:48:30 +02:00
Simon Duquennoy 5a1d8d8006 Make phase module use neighbor-table. 2013-08-19 17:48:29 +02:00
Fredrik Osterlind 8041f66d8c link-layer acks support for cooja motes 2013-08-15 14:32:35 +02:00
Adam Dunkels 0aa448f190 6lowpan fragmentation bugfix: the 6lowpan code had an unfortunate 
interaction with the behavior of the rdc layer. If the first packet of a
fragment transmission was lost, the remaining packets would get dropped
on reception. Moreover, the reception code contained a bug that
sometimes would cause fragments to be misidentified as fragments. Taken
together, these problems would result in a pathelogical network
breakdown if too many fragmented packets would occur simultaneously.
 2013-08-11 14:27:20 +02:00
Jelmer Tiete cf894b8b95 changed inter packet interval to 0.4ms 2013-06-21 13:15:45 +02:00
Nicolas Tsiftes 7cc8f326f4 Merge pull request #257 from adamdunkels/hotfix-csma 
CSMA bugfix
 2013-06-20 01:49:48 -07:00
Adam Dunkels 09f30e875d Bugfix: when a CSMA callback is received, we should remove the packet 
that was transmitted and not just the first packet that happens to be on
the output queue.
 2013-05-25 12:13:07 +02:00
Adam Dunkels c9de0e49be Added a number of default options for ContikiMAC, and allow them to be overridden with contiki-conf.h configuration options 2013-05-25 12:10:27 +02:00
lebrush 82d498f3a1 Removed undef 2013-05-15 16:25:34 +02:00
lebrush 071cfaf1cb Corrects some leftover uncapitalized printfs which may cause some platforms 
to crash.
 2013-05-15 12:21:15 +02:00
Nicolas Tsiftes 7f2a842b71 Merge pull request #174 from adamdunkels/feature-net-improvements 
Improvements to the core/net/ code
 2013-03-18 17:12:12 -07:00
Nicolas Tsiftes 6a07172662 Merge pull request #176 from adamdunkels/feature-net-bugfixes 
Network system bugfixes
 2013-03-18 13:38:44 -07:00
Adam Dunkels 7742b05d8c Major bugfix: when nullrdc is asked to send a list of packets, send the list of packets and not just the first packet - this is essential for retransmissions of fragmented IP packets to work 2013-03-18 13:35:29 +01:00
Adam Dunkels 4efd570cf9 Minor bugfix: explicitly cast pointer argument in debug printf 2013-03-18 11:22:05 +01:00
Adam Dunkels f2fbb4b49d Defensive programming: make sure that we don't fail completely if we get a callback for a NULL pointer 2013-03-18 11:22:04 +01:00
Adam Dunkels 82b755c017 Bugfix: keep track of receiver being awake as a local variable rather than a global, as it may have changed between invokations 2013-03-18 11:22:02 +01:00
Adam Dunkels 0670a8e1e2 Minor code style fixes to the contikimac and nullrdc code 2013-03-18 11:22:01 +01:00
Adam Dunkels 5993595a8f A number of updates to nullrdc 
* add a few rimestats to keep track of sent and received acks
* made a number of configuration options possible to override (ack timing)
* added the logic for sending 802.15.4 link layer ack packets, despite not being able to guarentee the 802.15.4 MAC timing
* increased the number of sequence numbers to keep track of for duplicate filtering
 2013-03-18 11:19:20 +01:00
Adam Dunkels 4541d3e85b Let the framer functions use ints instead of uint8_t to make them more generic 2013-03-18 11:19:18 +01:00
Robert Quattlebaum c0a693672c core/net: Added support for "bridge mode". 
"Bridge mode" allows devices to more easily send 802.15.4 packets as if
they were a different device. It also turns off any packet filtering
that may be implemented at layer 2. It works by allowing
`PACKETBUF_ADDR_SENDER` to be set earlier in the stack.

This is useful for implementing 6LoWPAN-ethernet bridges.

Enabled via setting `NETSTACK_CONF_BRIDGE_MODE` to 1. Disabled by
default.
 2013-03-10 14:45:15 -07:00
Adam Dunkels cb7842bd16 Added support for encryption and decryption of the packetbuf if macros 
NETSTACK_ENCRYPT and NETSTACK_DECRYPT are defined. Those are intended
to be called as functions NETSTACK_ENCRYPT() and NETSTACK_DECRYPT() to
encrypt and decrypt the packetbuf, respectively. If needed, an
initialization function by the name NETSTACK_ENCRYPTION_INIT() can
also be defined.
 2012-11-25 12:05:00 +01:00
Adam Dunkels 6ee1f72486 Removed old unused TDMA-based MAC and RDC code 2012-11-20 20:48:34 +01:00
Adam Dunkels ec8c7e9be0 Cleanup of the node-id.h files. The node-id.h file contains 
declarations of functions for setting and getting a node ID number, a
functionality that exists on many platforms. Since this functionality
was not considered part of the Contiki core, each platform defined its
own node-id.h file. This commit attempts to clean this up by
collecting the node-id.h into a core/sys/node-id.h file that replaces
the old node-id.h files from the platform directories.
 2012-11-20 19:59:46 +01:00
George Oikonomou 713c2e5974 DOS EOL and indentation fixes (core/ apps/ cpu/) 
- Removed some DOS EOLs
- Changed some tabs to spaces
- Removed some trailing whitespaces

Part of Pull Request #6
 2012-10-30 13:43:51 +00:00
Adam Dunkels 944537fccf Removed all old RCS tags in the Contiki source tree. Those RCS tags are not used any more, as we are now using git to manage the Contiki source tree 2012-10-26 15:54:49 +02:00
Fredrik Osterlind 076c208b72 avoid gcc optimization bug by extracting struct values 2012-05-30 17:58:45 +02:00
simonduq 63ea562568 base encounter_time on the time before last strobe, remove unused previous_txtime 2012-03-26 22:49:28 +02:00
simonduq 7784cf7827 stm32w platforms: use 2 cca and default contikimac guard time 2012-03-20 17:30:05 +01:00
simonduq 5da4463236 adding ducy cycling support to the stm32w-based platforms (patch by Chi-Anh La) 2012-03-20 17:29:58 +01:00
George Oikonomou e6819effef Fix compile errors with SDCC 
Intermingled declarations and code are not yet implemented in sdcc.
 2012-03-14 17:52:50 +00:00
David Kopf 07f6e10c1c Add display options to border router web page, default now uses stack instead of static buffer. 
Turn radio off until prefix is acquired.
 2012-03-02 16:01:12 -05:00
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