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Enhance bts_model_ API in preparation of dyn PDCH switching. These will be used
to re-connect a TCH/F_PDCH TS in a different mode: either as TCH/F or as PDCH.
All implementations so far return -ENOTSUP, and thus will cause a IPAC PDCH ACT
or DEACT *NACK* to be sent to the BSC as soon as these messages are handled.
Also add stubs in tests.
Change-Id: I21e60c028a1333431c3ed000f788b654d1170b0d
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Change-Id: Ie12eeff753e399b28a816893ac4d23e1cd391025
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Change-Id: I53a839a332980bca67ae0b7d3e36b97afe406e5b
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Use libosmocodec function to parse RTP with AMR payload in sysmoBTS and
LC15. This replaces "manual" parsing of AMR frame with function covered
by test suite and makes adding DTXd support easier.
Related: OS#1563
Change-Id: I1464f9a12e3f92926d03d5dd5d18e8f0f7206dd9
Reviewed-on: https://gerrit.osmocom.org/204
Tested-by: Jenkins Builder
Reviewed-by: Harald Welte <laforge@gnumonks.org>
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This removes a lot of copy+paste duplication between different BTS
models.
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probably a git merge artefact of some sort...
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This also ensures that a missing ortp library dependency is discovered
at configure time already
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We've added logging calls to the bursts processing. Add logging facility
initializatoin to the test code.
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Since automake 1.13 INCLUDES is depricated and causes a warning
Inspired from similar patches by Alexander Huemer for other osmocom
projects.
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sysmocom-bts model shuts down on link loss, but other models may not want
this, so shutdown is moved tor bts_model_abis_close of osmo-bts-sysmo.
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MS uplink power control is required in pretty much any BTS, and we
cannot assume that they PHY / L1 will always take care of it by
itself. So the correspondign code is moved to common/power_control.c
and called from the generic part of L1SAP.
The corresponding VTY paramter has been moved from the sysmobts-specific
trx VTY node to the common BTS VTY node.
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... introduced in 2cc37035d73191b71b9ba9c0d559a0da6a5f35e5
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This first part moves BCCH message primitives from osmo-bts-sysmo to common
part. A new file "common/l1sap.c" is introduced to implement handling of
layer 1 messages from/to BTS model.
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Use the standard RSL commands to order a logical channel
to use a fixed power level.
The code is not fully verified and there was a last minute
change to invoke bts_model_adjst_ms_pwr.
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Currently the DSP is instructed to achieve a given uplink
power target but there are circumstances (e.g. EMV testing)
where we need more control over it. The "manual/software/osmo"
power control can only be implemented per TRX and not per
lchan. Add a very very basic control that checks the MS Power
used by the phone, the actual receive level and then adjust
the power.
The code doesn't take the history into account, if the phone
can not reach the requested power level the code will be stuck
(e.g. no timeout based on multiframes). It has a mode for a
fixed power control but no way to set it yet.
The change of the mode requires a restart of the software.
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In 5a03e129a633637d0a6b57b3b5aa6d6596b938fe we generalized the
structural parser so we need to update the expected behavior of
that routine.
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We do not need to have these variables anymore. Just remove them.
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We need to build a lot more code to be able to test these two
new routines. I didn't want to move the code to a utils file
as the check is called from a hot path. Add accessors to the
inlined variant to be used by the unit test.
While writing the unit tests I noticed that a re-transmission
of the ciphering command would lead to an attempt to enable
ciphering again. I am not sure that this MphConfig is idempotent.
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Extend the router to verify that the message received is
properly encoded. The code can deal with the basic structure
of ETSI OML and vendor specific messages for ip.access and
the osmocom project.
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For systems with a bigger PA enabling the full output power at
once might draw more current than a power supply can provide. This
code will step up the output power in smaller steps to avoid this
situation.
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Limit the range from 0 to (_MAX_SYSINFO_TYPE - 1) instead of
0 to 31. This way we will never access the lchan->si.buf[] out
of bounds. This is only a theoretical issue though as the code
filling the lchan->si.buf for the SACCH will not have valid
>= _MAX_SYSINFO_TYPE. Add a small regression test to check we
still schedule all SIs.
Fixes: CID 1040765
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These routines do not pass the gsm_abis_mo and parsing the FOM
header of the msg does not seem to be a good idea either. Pass
in the OML object so that the model code can determine what the
void pointer is.
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The BTS layer needs to inform the handover code when an access
burst has been received. In turn the handover layer will ask the
bts to modify the channel, it will schedule the physical information
inform the BSC with the HANDOVER DETECTION and waits for the BTS
layer to inform it about the first received frame to stop a timer.
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This patch implements merging of IMMEDIATE ASSIGN REJECT messages as
suggested in GSM 08.58, 5.7. When a new IMM.ASS.REJ is to be appended
to the AGCH queue and the last message in that queue is of the same
type, the individual entries (up to 4 per message) of both messages
are extracted, combined and stored back. If there are less than 5
entries, all entries fit into the old message and the new one is
discarded. Otherwise, the old message will contain 4 entries and the
remaining ones are stored into the new one which is then appended to
the queue.
Ticket: SYS#224
Sponsored-by: On-Waves ehf
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Currently, the AGCH queue length is not limited. This can lead to
large delays and network malfunction if there are many IMM.ASS.REJ
messages.
This patch adds two features:
- Don't accept msgs from the RSL layer when the queue is way too
full (safety measure, mainly if bts_ccch_copy_msg() is not being
called by the L1 layer, currently hard coded to 1000 messages)
- Selectively drop IMM.ASS.REJ from the queue output depending on the
queue length
Ticket: SYS#224
Sponsored-by: On-Waves ehf
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This patch extends paging_gen_msg() by adding an output parameter
is_empty that is true, if only a paging message with dummy entries
has been placed into buffer. This feature is then used by
bts_ccch_copy_msg() to insert an AGCH message if is_empty is true.
Ticket: SYS#224
Sponsored-by: On-Waves ehf
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The first test checks the AGCH may queue length computation.
The second test fills the queue by calling bts_agch_enqueue() with a
mix of IMM.ASS and IMM.ASS.REJ. Then it drains the queue by calling
bts_ccch_copy_msg(). After each of both steps, statistics are printed
out.
Sponsored-by: On-Waves ehf
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When cross-compiling osmo-bts/osmo-pcu one can not easily
execute the testsuite. By adding the OSMO_QEMU variable in
front of the normal execution we can execute the tests. This
should work for native and cross builds.
$ OSMO_QEMU="qemu-arm -L /opt/poky/1.1.2/sysroots/armv5te-poky-linux-gnueabi/" make check
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