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First the cached CMD sent (struct trx_ctrl_msg) is reworked to have the
cmdname and the params in different buffers for easier comparison with
RSP later.
For the receive path (trx_ctrl_read_cb), new function helpers are added
to parse the buffer into cmdname+params+code (parse_rsp) and to compare
if a given RSP matches the current CMD we sent (cmd_matches_rsp).
The reasoning behind this patch is that a way to check for parameters
when receiving a RSP will be needed in future work, as before this patch
checking of parameters is ignored. This commit is a preparation for commit
to check for duplicated responses.
Change-Id: I2474cbc3e4457cf04f78e1c168768295e1132034
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Whether or not we are talking to an OpenBTS (SETBSIC) or OsmoTRX
(SETTSC) transceiver is a property of the phy_link, and not a property
of the BTS. Also, we *really, really* should never use global
variables. I'm very happy this is being cleaned up, finally.
Change-Id: I51aeb17661dfd63ff347f7b2c0d7ffa383ec814c
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Those global variable declarations for non-existing variables were
introduced in 8a8d73a691c709403be4adbe8f2a7150b4d5998a, let's remove
them again. The source / destination IP address is a parameter of the
phy_link, and not a global variable.
Related: OS#1848
Change-Id: I94b5f934fc3bd00b0467d90029d3053b16594186
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Related code / function structure still dates back to the pre-phy_link
days. Let's clean this up to make things less convoluted and reduce the
number of non-static symbols needed between code split over two files.
Change-Id: I1f30ae1f547a5c01c516d4a05032193294c25f2d
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The new name makes it clear what the function actually does: Send burst
data via the trx interface.
Change-Id: I5031541d4ae4244a62a18acf71139db2874927fa
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Depends on libosmocore I3c655a4af64fb80497a5aaa811cce8005dba9cd9
Change-Id: I0bd34b7b02c1a9b0c6f6f89f327b486e5620c8d5
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Originally `maxdly` command in osmo-trx was contrlling max TA for Normal Bursts.
This was not a proper behaviour, because it was used to "control maximum
distance a handset can attach from" which is controlled by Access Bursts max TA.
Osmo-trx was corrected to apply `maxdly` to Access Bursts and a new command was
introduced to contrl max TA for Normal Bursts - `maxdlynb`. This patch adds
support for this configuration command into osmo-bts-trx.
If you wonder why would you need that - some test equipment (namely R&S CMD57)
has really bad timing sync and can generate signal a few symbols off. That
prevents osmo-trx from properly receiving otherwise perfectly good bursts
generated by CMD57. This configuration is a solution for this.
Change-Id: Ib5d255299668ac1ef9f0ce95e016f55ba3c82277
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Existing interfaces are coded with the implicit expectation of using
a burst sequence length of 148, which is constant with GSM and GPRS.
That changes with EGPRS, where the burst length may be 444 due to
the use of 8-PSK instead of GMSK modulation.
Setup the interface to accept and return a length value with the
burst sequence. This allows 444 length bit vectors to/from the
EGPRS decoder/encoder. Length is explicitly used as a identifier for
8-PSK vs. GMSK modulated sequences.
Change-Id: I90b46b46b11b6ce280e7f8232d5a2fccec2d4f18
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
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This way we can model a flexible mapping between any number of PHYs,
each having multiple instances, and then map BTSs with TRXx on top of
those PHYs.
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The code is quite complete, TCH and PDCH channels are not yet tested.
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