| Commit message (Collapse) | Author | Age | Files | Lines |
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Replace zero times with blanks.
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Turns out eps also came from other GPS, but never made it to TPV.
Regressions changed to show new eps data.
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The broken tests are the ones where we have to do our own conversion from
week/second to UTC because the device either doesn't supply UTC or its
reporting is broken.
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GPGSA is commonly taken to be 12 sats. Prevent ublox and TSIP drivers
from outputting more. No regressions had more than 12 anyway.
DOPs that were NaNs were output as 0.0. Now output as blanks.
Too easy for a user to take 0.0 as a real number.
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Explain what breaks on a leap-second transition, and why, in build.txt.
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A concerted effort to reduce all tests to below 10K in volume each while
preserving all significant test features.
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Instead, set the used member in the satellites array directly where possible.
The NMEA0183 and TSIP drivers still need a local equivalent.
This changes pseudo-NMEA GSA output in several binary-protocol tests.
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Um. What was I thinking when I wrote that guard? It zeroed out
reports of satellites used.
Required a rebuild of the following (binary-orotocol) test logs.
test/daemon/bu303-climbing.log.chk
test/daemon/bu303-moving.log.chk
test/daemon/bu303-stillfix.log.chk
test/daemon/italk-binary.log.chk
test/daemon/navcom.log.chk
test/daemon/superstar2.log.chk
test/daemon/trimble-lassen_iq-3dfix.log.chk
test/daemon/trimble-lassen_iq.log.chk
test/daemon/ublox-aek-4t.log.chk
test/daemon/ublox-lea-4t.log.chk
test/daemon/ublox-sirf1.log.chk
test/daemon/zodiac.log.chk
After that, all regressiion tests pass.
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Required a regression-test rebuild, of course. The field is still set by
the TSIP and SiRF drivers; the SiRF driver actually uses it. It may be
possible to eliminate the TSIP uses, but so far attempting this has
produced odd regression-test failures.
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Required a regression-test rebuild.
The immediate reason for this was Savannah bug bug #37810:
satellites_used always zero via gpsd socket with multi nmea GSA/GSV. As the
user reporting said:
The "satellites_used" field in a "struct gps_data_t" filled in by
"gps_read" is always returning zero.
This module emits GNGSA messages in a group of three. My information
is that the first GNGSA pertains to GPS, second to GLONASS, third to
QZSS. It also emits GSV messages using talker id's GL,GP,QZ.
The larger point is that DOPs are likely to be valid for longer than
a GSV reporting cycle; they change only slowly as the actual sat
configuration does. So it makes sense to retain them.
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Alexey says:
I'm recorded 50 BPS data from BT-368 tracker with SiRFIII chipset, compared
decoded values with reference data* and founded this fields wrong decoded.
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Required a regression-test rebuild.
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Protocol version number is bumped. Python and C test clients are known
to work; interfaces of the C and Python client bindings are
unchanged. Third-party client-side bindings which rely on naively
copying JSON members will break (implementers have been repeatedly
warned not to do this).
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I thought I could avoid this, but it turns out SiRF chips before firmware
rev 2.3.2 don't reliably get a leap-second report either. Sigh...
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Gains: the stored leap-second offset we used for this could go stale,
breaking our regression tests in the process - itr's just dumb luck
that it hasn't since done so since 2008.
Losses: If the receiver doesn't have leap-second cached in NVRAM (e.g,
between cold boot and the next subframe message) time will be inaccurate
by a few more seconds.
10 regression test outputs of 66 had to be rebuilt.
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This solves the disappearing epx/epy bug on SiRFs, but it was actually a
systemic problem that affected several drivers. Navigation solution messages
were clearing DOPs, making it impossible for the error modeller to compute
estimates. New logic: Clear DOPs only when we get a skyview report. They'll
be regenerated by our visibility-matrix calculation when the skyview sentence
is analyzed.
If a sentence from the device supplies a DOP between the time the visibility
calculation is done and when the next fix is reported, it will override
our computed value. This might change later!
This change required a regression-test rebuild.
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The guard controllong DOP computation wasn't right. The result was
that x/y error estimates were computed much less often than they
should have been.
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Rather than computing the value the WGS84 ellipsoid semi-minor axis in
every call to ecef_to_wgs84fix, and having this computation in a few
different source files, use a predefined value. This slightly changes
the output value of ecef_to_wgs84fix - in the least-significant digit,
or about 0.1mm.
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...to something more descriptive.
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