This is basically an import of relevant code from osmo-pcu.git
08523c2286dfe27402f8e2eb4b98da5a529c7915 which allows encoding LLC
frames into RLC/MAC uplink data blocks.
A 1-to-1 import was not possible for several reasons:
* osmo-pcu uses C++ in some places
* osmo-pcu implements encoding of DL data blocks, not UL data blocks
* Some osmo-pcu code is still not really polished and stuff is still
mixed (for instance rlc_window(_ul).c/h were split into their own
files here).
Hence this was not a "copy all files and leave as they are" import, but
rather looking at the encode path starting on osmo-pcu.git scheduler and
see which code had to be pulled in to encode the RLC/MAC blocks.
Due to the slightly different requerirements for UL and DL blocks, it is
well possible that further work in needed in order to have the code
produce correct blocks. This is only a first step to pull in all code so
that stuff can be fixed in smallish incremental steps.
Related: OS#5500
Change-Id: I0a01d79d16bbfc63aa88e6bb0f432f3772645730
This patch is another step towards a working RLC/MAC implementation. It adds:
* An initial data model with MS (gprs_rlcmac_entity) and ul_tbf.
* A UL_TBF state FSM from initial to FLOW status
* A UL_TBF assignemnt FSM, covering both 1phase and 2phase assignments.
* Triggering of UL_TBF allocation and assignment FSM when new LLC data
is pushed from upper layers.
* A scheduler generating some ctrl messages (PktResReq and UlDummyCtrlBlk)
when indicated by the network.
This patch is pushed as a WIP state since it already contains a
considerable amount of code and lots of new files, which can be
used/extended at a later point, making parallel contribution easier.
Related: OS#5500
Change-Id: I420c57a9d0b63f9c2805a7c2ae8ce85532a48eef
Move types defined by spec not directly/solely intended for the CSN1
encoder/decoder operation to a separate types.h header.
More and more types will be added there which will be used by the data
domain inside and outside the library.
Change-Id: Ib0fdae48fc3e76d701d21644826e5ffd8553fecb
Done for files containing mostly (99%) of CSN1 related structrs and
encdec functions.
File ts_44_064.c is kept as is since it's not CSN1 related.
File csn1_ts_44_060.c still contains some enums and value_string which will
be split into ts_44_060.c in a follow up commit.
Change-Id: I93ad9f90e7496b81ccfe679a614589373f244166
llc_queue and codel code has been taken from osmo-pcu.git
6a5b1b1f3ef83f87a9df1d4511e22f59039e11ed and have been refactored to fit
in libosmo-gprs (removed llc_pdu structs, reworked struct types being
enqueued, etc.). Support for queues based on radio_prio has also been
added.
Related: OS#5500
Change-Id: Icdaa046fb6a71367f10beee16dcf9a5b7b61022e
The GRR primitives and types are kept 1-to-1 ABI compatible
to those at libosmo-gprs-llc so that they can be forwarded as pointers.
Still, we want to keep the types duplicated in order to avoid having to
depend one library on another, since the forwarding of one layer to the
other is done by the app and can use whatever it wishes on either side.
Related: OS#5500
Change-Id: I1870fa6a264612c5a669bfb832e6e8c0a892cb74
This commit introduces a new library called 'libosmo-gprs-rlcmac',
which is going to be used by osmo-pcu and osmocom-bb for parsing
and generation of PDUs defined using CSN.1 (see 3GPP TS 24.007).
The actual RLC/MAC definitions are imported from osmo-pcu.git [1].
Change-Id: Ic322543e6d9a870beec83fa1166352e4a51366e7
Related: [1] osmo-pcu.git 0eaa3d379828517b5478d0202a26f6f3eb561a4e
Pau Espin
Vadim Yanitskiy