Commit Graph

19 Commits

Author SHA1 Message Date
Pau Espin fca503d0b4 radioInterfaceMulti: Fix memory leak upon close()
The leak was reported by ASan.

Direct leak of 48 byte(s) in 1 object(s) allocated from:
    #0 0x7fd9c9c29f41 in operator new(unsigned long) /build/gcc/src/gcc/libsanitizer/asan/asan_new_delete.cpp:99
    #1 0x55bd63ae2364 in RadioInterfaceMulti::init(int) /git/osmo-trx/Transceiver52M/radioInterfaceMulti.cpp:209
    #2 0x55bd63a9c6d2 in makeRadioInterface(trx_ctx*, RadioDevice*, int) /git/osmo-trx/Transceiver52M/osmo-trx.cpp:115
    #3 0x55bd63a9f663 in trx_start /git/osmo-trx/Transceiver52M/osmo-trx.cpp:600
    #4 0x55bd63a9fd6f in main /git/osmo-trx/Transceiver52M/osmo-trx.cpp:695
    #5 0x7fd9c7910151 in __libc_start_main (/usr/lib/libc.so.6+0x28151)

Change-Id: Ia4f9d4e47caa86ada98054763573e652d281992c
2021-01-17 17:18:49 +00:00
Pau Espin e91544d740 Calculate RSSI offset based on RxGain configuration
Prior to this patch, osmo-trx relied totally on proper VTY configuration
being set in "rssi-offset" together with the RxGain set through TRXC in
order to provide correct Uplink RSSI measurements to bts-trx.

With this patch, RSSI is now by default calculated (in LMS and UHD
backends) based on the currently set RxGain, by providing empirically
discovered values. Still, for backward compatibility, the old
"rssi-offset" command will overwrite completely the per-default
calculated rssi offset.
A new optional parameter "relative" is added at the end of the
"rssi-offset" VTY command to flag the value as relative to the newly
per-default calculated value. This way specific setups (like adding a
LNA / RF fronted) can still be expressed while still keeping the
automatic per-default offset.

Related: OS#4468
Change-Id: I8ef78fd20c22c60d61bfb18d80a4a36df4fd6c20
2020-10-14 12:53:04 +02:00
Harald Welte fd88564acb [cosmetic] radioIntefaceMulti: Fix whitespace / indent
Change-Id: I3addb844a79a8f4e8af03323fc50e57b8a3590a8
2020-09-11 12:43:05 +02:00
Harald Welte 82c72218fd [cosmetic] radioInterfaceMulti: More comments
Change-Id: If608627a77c39b5faabc72c7dd72d00fae8697a9
2020-09-11 12:43:02 +02:00
Pau Espin 992c9bd1ce radioInterface: Operate on real Tx power attenuation rather than on device specific gains
All the Tx gain related APIs are left out of reach from radioInterface,
and in there we simply interact with radioDevice passing the attenuation
received from TRXC.

Prior gain logic is moved in base radiodevice class, with the idea that
the setTxGain() and related functions will be dropped over time in each
sublcass in favour of an specific implementation of the
SetPowerAttenuation API.

Change-Id: I4f8a1bcbed74aa9310306b97b0b1bfb02f7855e6
2020-06-09 11:43:32 +02:00
Pau Espin fd99c6ce05 radioInterfaceMulti: Fail to tune on freq not following multi-arfcn restrictions
multi-arfcn feature uses a hardcoded disposition of logical channels on
a physical channel. Logical channels in the phisical channel are
separated by MCBTS_SPACING Hz, that is 4 GSM ARFCNs.

As a result, multi-arfcn restricts the TRX ARFCN setup to the following:
ARFCN(TRX0)=N, ARFCN(TRX1)=N+1*4, ARFCN(TRX2)=N+2*4, ...

Let's make sure radioInterfaceMulti verifies the requested Rx/Tx
frequencies for each logical channel over TRXC match the restriction
explained above. It will check freq going to be set is indeed separated
by MCBTS_SPACING from already set channels, making sure the ARFCN series
is consistent.

Otherwise, before this patch, one could set in osmo-bsc:
ARFCN(TRX0)=N, ARFCN(TRX1)=N+2

and osmo-trx would silently ack the related Rx/TxTUNE TRXC commands, but
actually still transmit on ARFCN N+4 instead. As a result, in this
scenario TRX!=0 were unusable with multi-arfcn.

Related: OS#4207
Change-Id: I2f3d66a611d3a489b3e4d9431994f4ec77b4460f
2020-01-07 16:04:04 +01:00
Pau Espin 928141b7d6 radioInterfaceMulti: write frequency offset direction (rx/tx) in log line
Change-Id: I7b89426e5d7d5e7570d4ef800a30c7b74bd09b82
2019-09-30 12:18:31 +02:00
Pau Espin e503c988d8 radioInterface: Atomically fetch and change underrun variable
Otherwise, it could happen that underrun events are lost:
TxLower (isUnderrun):	RxLower (pullBuffer):
read(underrun)
			read(underrun)
			write(underrun, |val) [maybe underrun becomes TRUE]
write(underrun, false)

Similary, it could happen the other direction if atomic was only applied
to isUnderrun:
TxLower (isUnderrun):	RxLower (pullBuffer):
			read(underrun) -> true
read(underrun)-> true
write(underrun, false)
			write(underrun, true|val) where val=false

So in here isUnderrun would return true twice while it should only
return one.

Change-Id: I684e0a5d2a9583a161d5a6593559b3a9e7cd57e3
2019-09-20 19:17:22 +02:00
Timo Jacobus 18a615176e Transceiver: Fixed copying of history into and from channelizer buffer.
In multi arfcn mode, osmo-trx would drop some bursts because it couldn't detect it
and would emit idle burst instead. Specificaly detection of peak in correlation
vector failed. Correcting copying of history in pullBuffer method fixes this issue.

[Re-worked by Pau Espin Pedrol <pespin@sysmocom.de>]

Fixes: 57df2362f0eca0a330aad3e18906046dfadb9c8b
Change-Id: I93e43f6868cd67e69fc59d2980a03550d2505bf8
2019-09-20 19:17:22 +02:00
Pau Espin 25383a3610 radioInterface{Multi,Resamp}: Fix successful writeSamples() masking underrun from readSamples()
The only who should be setting class instance value "underrun" to false
is isUnderrun().
Similar fixes were already applied lately to radioInterface.cpp.

Change-Id: I3239b1df4536c080365106b3e4daa523b57f5dff
2019-09-13 18:53:29 +02:00
Pau Espin 62845241a2 radioInterfaceMulti: Override setTxGain() to avoid chan!=0 calls
Change-Id: I7e67f660c3b0b009db59b405de603f6058021802
2019-09-13 17:50:10 +02:00
Pau Espin 17e6cd0394 radioInterfaceMulti: Check equals zero explicitly
It's not a pointer check or a boolean expression, in here we really
check chan index is 0, so it's more clear doing so this way like it's
done in all other places.

Change-Id: I83b14487d14ba8272f58796f640f58a88891e532
2019-09-13 16:20:46 +02:00
Pau Espin a801ae5d94 radioInterface: Rename mRadio to mDevice
Previous naming is ready confusing, because "Radio" is actually the
common term between radioInterface and radioDevice, and it looks like
it's referring to radioInterface rather than radioDevice. On the other
hand, mDevice cleary states it refers to the radioDevice item.

Change-Id: I708bb1992a156fb63334f5590f2c6648ca27495e
2019-09-13 15:59:31 +02:00
Pau Espin 21d03d3912 Add SPDX annotation
Related: OS#3515
Change-Id: I3719bd8dc015569ecd81928fc079e27593cdca09
2019-07-22 12:06:26 +02:00
Pau Espin 1f15152968 radioInterfaceMulti:pullBuffer: Sanely convert float array to complex array
Fixes this type of compilation warning:
‘void* memcpy(void*, const void*, size_t)’ writing to an object of non-trivially copyable type ‘class Complex<float>’; use copy-assignment or copy-initialization instead [-Werror=class-memaccess]

Change-Id: Ibb2380a0a335ce798fe87221519fbbebade53054
2018-09-10 10:30:06 +02:00
Pau Espin 8e498bfd35 radioInterface: forward errors from RadioDevice to Transceiver in recv path
Change-Id: Id7b08b19d6575c79b4d57db656a17ff05bb61ee9
2018-09-03 18:53:52 +02:00
Pau Espin 46444637c6 cosmetic: Fix trailing whitespace
Change-Id: Ia647cfed0acb35adeb9b3b7824170d06c0369ef7
2018-09-03 18:53:41 +02:00
Tom Tsou c37594f3b9 mcbts: Allow out of order channel setup
Previous checks on multi-channel TSC and ARFCN settings would fail
if channels were initialized out of order. Namely, if channel 0
was not configured first, osmo-trx would error on the control
interface leading osmo-bts to fail.

Allow global TSC setting on all channels with added logging notice.
Notify if channel frequency is unexpected - which may happen if
channels are setup out of order - but do no report as error.

Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
2016-07-08 14:46:25 -07:00
Tom Tsou 7676427816 mcbts: Add multi-ARFCN radio support
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>
2016-07-01 03:14:15 -07:00