SCHED_RR allows us to operate osmo-trx reliable even under exceptionally
high system load, as the realtime scheduler priority will have higher
priority than the other "regular" tasks on the system.
Change-Id: Ia2452b9763960b2be37fbeee9d832554da68a53f
Closes: OS#2344
Some compilers don't support the __builtin_cpu_supports built-in,
so let's make them able to compile the project anyway.
Change-Id: I0c90402d8e4c9f196c54b066ff30891c8de3ad2b
The 'diversity' option was an experimental 2 antenna receiver
implementation for UmTRX. The implementation has not been
maintained and current working status is unknown.
In addition to code rot, Coverity is triggering errors in the
associated code sections.
Removal of code cleans up many cases of special handling that
were necessary to accommodate the implementation.
Change-Id: I46752ccf5dbcffbec806081dec03e69a0fbdcdb7
The osmo-trx binary outputs no info about its SSE support status.
This commits adds some putput that informs about the SSE of the
binary and also tells which of the SSE levels the CPU supports.
Change-Id: Iacc83fd668c31644e0efb3e18962cf2870ed1daf
The current implementation can select the SSE support level during
compiletime only.
This commit adds functionality to automatically detect and switch
the SSE support level and automatically switch the Implementation
if the CPU does not support the required SSE level.
Change-Id: Iba74f8a6e4e921ff31e4bd9f0c7c881fe547423a
OpenBTS relies on reading in configuration values from the OpenBTS.config
sqlite3 database. This configuration method is not maintained and not
recommended for Osmocom or OpenBTS use. Command line setup is the
recommended approach.
Note that when the osmo-trx logging mechanism is replaced, the sqlite
dependency will be removed.
Change-Id: I95d7b771fde976818bee76f89163e72c3a44ecdd
Requires changing the radioInterface API to pass in Rx side SPS
value. Update the (deprecated) diversity configuration to match
as well.
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
Unlike earlier versions of UHD, the current release (3.9.2)
does not automatically select on-board GPSDO as the reference
source. Modify the command line settings to allow explicit
selection of GPS in addition to the external setting.
Simultaneous GPS and external reference settingis disallowed.
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
The command line EDGE option will enable 8-PSK burst
detection on any slot where a normal burst is expected.
The burst search order is 8-PSK first followed by GMSK.
EDGE will force 4 SPS sampling on Tx and Rx. Along with
twice the search correlation from 8-PSK and GMSK, EDGE
will increase CPU utilization. Whether the increase is
notable or not is dependent on the particular machine.
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
Add new radio interface "radioInterfaceMulti" for multi-carrier
support.
Only USRP B200/B210 devices are supported because of sample
rate requirements (3.2 Msps).
Only 4 SPS operation Tx/RX is supported.
8-PSK is supported.
Other options may be added at a later time
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
Rather than a simple bool type, convert the diversity switch
to the device interface specifer:
enum InterfaceType {
NORMAL,
RESAMP_64M,
RESAMP_100M,
DIVERSITY,
};
The more general specifier allows passing in special cases
other then selection diversity such as multi-ARFCN support.
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
Previous approach was to enable 4 SPS on the receive path only
for EDGE use, which is not a requirement for 4 SPS operation.
Make the 4 SPS configuration setting directly settable.
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
The majority of GSM host platforms are capable of operating with
the 4x oversampled modulator, which justifies the new default
setting. The small number exceptions (e.g. Raspberry Pi) can still
use the lower complexity 1 sps modulator with the '-s 1' command
line option if required.
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
When EDGE is enabled with the '-e' option, the random burst generator
switches from GMSK normal bursts to 8-PSK EDGE bursts.
$ ./osmo-trx -e -r 7
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
Create EDGE slot type in the Transceiver. When EDGE mode is enabled
for a particular slot, blind detection will be performed by
correlating against EDGE followed by normal bursts if no EDGE burst
is found.
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
Allow setting the device to non single SPS sample rates - mainly
running at 4 SPS as the signal processing library does not support
other rates. Wider bandwith support is required on the receive path
to avoid 8-PSK bandlimiting distortion for EDGE.
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
Filler types was of "bool" type, which prevented it from taking values greter
than 1. And RAND filler type has integer value of 2, which was casted to 1 on
assigning, which led to a normal filler table being used instead of the RAND
one.
Add stop and restart capability through the POWEROFF and POWERON
commands. Calling stop causes receive streaming to cease, and I/O
threads to shutdown leaving only the control handling thread running.
Upon receiving a POWERON command, I/O threads and device streaming are
restarted.
Proper shutdown of the transceiver is now initiated by the destructor,
which calls the stop command internally to wind down and deallocate
threads.
Signed-off-by: Tom Tsou <tom@tsou.cc>
Allow command line setting of the DSP frequency in UHD. All channels
will be tuned with the same offset. Dual-channel tuning with the B210,
which uses a single LO, will override the command line offset value
and set the DSP frequency automatically.
Signed-off-by: Thomas Tsou <tom@tsou.cc>
Burst selection at a particular time works in the following order
of priority.
1. Slot is disabled with channel combination set to NONE (default)
1. Burst exists in priority queue for the current time.
2. Filler table entry is used
This patch sets default behaviour to force all filler table entries
to zero and disallows filler table changes. This effectively means
that only bursts received from upper layers will be transmitted and
nothing will be automatically transmitted in the absence or delay
of incoming burts at a particular time.
New Command line option "Enable C0 filler table" allows reverting
to previous idle burst generation and retransmission behaviour on
TRX0. Retransmission cannot be enabled on non-C0 channels.
Signed-off-by: Thomas Tsou <tom@tsou.cc>
We don't require any parameters stored in the configuration table,
so don't bother with the existence of the persistent database file.
This also removes an unnecessary step during initial setup since
relevant parameters can be configured from the command line.
Signed-off-by: Thomas Tsou <tom@tsou.cc>
Create new main executable with full command line option parsing
of relevant parameters. Database configuration table still exists
(and must exist because of the global gConfig object), but can
be bypassed with command line options.
Signed-off-by: Thomas Tsou <tom@tsou.cc>
Pau Espin
Harald Welte
Vadim Yanitskiy
Philipp Maier